Remove the MN10300 arch as the hardware is defunct.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Masahiro Yamada <yamada.masahiro@socionext.com>
cc: linux-am33-list@redhat.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- directory with info about devices using the misc dev subsystem
mmc/
- directory with info about the MMC subsystem
-mn10300/
- - directory with info about the mn10300 architecture port
mtd/
- directory with info about memory technology devices (flash)
namespaces/
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | ok |
| nios2: | ok |
| openrisc: | ok |
| parisc: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | ok |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
- | mn10300: | ok |
| nios2: | ok |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | .. |
| microblaze: | .. |
| mips: | TODO |
- | mn10300: | .. |
| nios2: | .. |
| openrisc: | .. |
| parisc: | .. |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | ok |
| microblaze: | ok |
| mips: | ok |
- | mn10300: | ok |
| nios2: | ok |
| openrisc: | ok |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | .. |
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
- | mn10300: | ok |
| nios2: | ok |
| openrisc: | ok |
| parisc: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | .. |
| microblaze: | .. |
| mips: | ok |
- | mn10300: | .. |
| nios2: | .. |
| openrisc: | .. |
| parisc: | TODO |
| m68k: | .. |
| microblaze: | .. |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | .. |
| openrisc: | .. |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| m68k: | .. |
| microblaze: | ok |
| mips: | ok |
- | mn10300: | TODO |
| nios2: | .. |
| openrisc: | .. |
| parisc: | .. |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
+++ /dev/null
- =========================
- MN10300 FUNCTION CALL ABI
- =========================
-
-=======
-GENERAL
-=======
-
-The MN10300/AM33 kernel runs in little-endian mode; big-endian mode is not
-supported.
-
-The stack grows downwards, and should always be 32-bit aligned. There are
-separate stack pointer registers for userspace and the kernel.
-
-
-================
-ARGUMENT PASSING
-================
-
-The first two arguments (assuming up to 32-bits per argument) to a function are
-passed in the D0 and D1 registers respectively; all other arguments are passed
-on the stack.
-
-If 64-bit arguments are being passed, then they are never split between
-registers and the stack. If the first argument is a 64-bit value, it will be
-passed in D0:D1. If the first argument is not a 64-bit value, but the second
-is, the second will be passed entirely on the stack and D1 will be unused.
-
-Arguments smaller than 32-bits are not coalesced within a register or a stack
-word. For example, two byte-sized arguments will always be passed in separate
-registers or word-sized stack slots.
-
-
-=================
-CALLING FUNCTIONS
-=================
-
-The caller must allocate twelve bytes on the stack for the callee's use before
-it inserts a CALL instruction. The CALL instruction will write into the TOS
-word, but won't actually modify the stack pointer; similarly, the RET
-instruction reads from the TOS word of the stack, but doesn't move the stack
-pointer beyond it.
-
-
- Stack:
- | |
- | |
- |---------------| SP+20
- | 4th Arg |
- |---------------| SP+16
- | 3rd Arg |
- |---------------| SP+12
- | D1 Save Slot |
- |---------------| SP+8
- | D0 Save Slot |
- |---------------| SP+4
- | Return Addr |
- |---------------| SP
- | |
- | |
-
-
-The caller must leave space on the stack (hence an allocation of twelve bytes)
-in which the callee may store the first two arguments.
-
-
-============
-RETURN VALUE
-============
-
-The return value is passed in D0 for an integer (or D0:D1 for a 64-bit value),
-or A0 for a pointer.
-
-If the return value is a value larger than 64-bits, or is a structure or an
-array, then a hidden first argument will be passed to the callee by the caller:
-this will point to a piece of memory large enough to hold the result of the
-function. In this case, the callee will return the value in that piece of
-memory, and no value will be returned in D0 or A0.
-
-
-===================
-REGISTER CLOBBERING
-===================
-
-The values in certain registers may be clobbered by the callee, and other
-values must be saved:
-
- Clobber: D0-D1, A0-A1, E0-E3
- Save: D2-D3, A2-A3, E4-E7, SP
-
-All other non-supervisor-only registers are clobberable (such as MDR, MCRL,
-MCRH).
-
-
-=================
-SPECIAL REGISTERS
-=================
-
-Certain ordinary registers may carry special usage for the compiler:
-
- A3: Frame pointer
- E2: TLS pointer
-
-
-==========
-KERNEL ABI
-==========
-
-The kernel may use a slightly different ABI internally.
-
- (*) E2
-
- If CONFIG_MN10300_CURRENT_IN_E2 is defined, then the current task pointer
- will be kept in the E2 register, and that register will be marked
- unavailable for the compiler to use as a scratch register.
-
- Normally the kernel uses something like:
-
- MOV SP,An
- AND 0xFFFFE000,An
- MOV (An),Rm // Rm holds current
- MOV (yyy,Rm) // Access current->yyy
-
- To find the address of current; but since this option permits current to
- be carried globally in an register, it can use:
-
- MOV (yyy,E2) // Access current->yyy
-
- instead.
-
-
-===============
-SYSTEM CALL ABI
-===============
-
-System calls are called with the following convention:
-
- REGISTER ENTRY EXIT
- =============== ======================= =======================
- D0 Syscall number Return value
- A0 1st syscall argument Saved
- D1 2nd syscall argument Saved
- A3 3rd syscall argument Saved
- A2 4th syscall argument Saved
- D3 5th syscall argument Saved
- D2 6th syscall argument Saved
-
-All other registers are saved. The layout is a consequence of the way the MOVM
-instruction stores registers onto the stack.
+++ /dev/null
- =========================================
- PART-SPECIFIC SOURCE COMPARTMENTALISATION
- =========================================
-
-The sources for various parts are compartmentalised at two different levels:
-
- (1) Processor level
-
- The "processor level" is a CPU core plus the other on-silicon
- peripherals.
-
- Processor-specific header files are divided among directories in a similar
- way to the CPU level:
-
- (*) include/asm-mn10300/proc-mn103e010/
-
- Support for the AM33v2 CPU core.
-
- The appropriate processor is selected by a CONFIG_MN10300_PROC_YYYY option
- from the "Processor support" choice menu in the arch/mn10300/Kconfig file.
-
-
- (2) Unit level
-
- The "unit level" is a processor plus all the external peripherals
- controlled by that processor.
-
- Unit-specific header files are divided among directories in a similar way
- to the CPU level; not only that, but specific sources may also be
- segregated into separate directories under the arch directory:
-
- (*) include/asm-mn10300/unit-asb2303/
- (*) arch/mn10300/unit-asb2303/
-
- Support for the ASB2303 board with an ASB2308 daughter board.
-
- (*) include/asm-mn10300/unit-asb2305/
- (*) arch/mn10300/unit-asb2305/
-
- Support for the ASB2305 board.
-
- The appropriate processor is selected by a CONFIG_MN10300_UNIT_ZZZZ option
- from the "Unit type" choice menu in the arch/mn10300/Kconfig file.
-
-
-============
-COMPILE TIME
-============
-
-When the kernel is compiled, symbolic links will be made in the asm header file
-directory for this arch:
-
- include/asm-mn10300/proc => include/asm-mn10300/proc-YYYY/
- include/asm-mn10300/unit => include/asm-mn10300/unit-ZZZZ/
-
-So that the header files contained in those directories can be accessed without
-lots of #ifdef-age.
-
-The appropriate arch/mn10300/unit-ZZZZ directory will also be entered by the
-compilation process; all other unit-specific directories will be ignored.
S: Maintained
F: drivers/platform/x86/panasonic-laptop.c
-PANASONIC MN10300/AM33/AM34 PORT
-M: David Howells <dhowells@redhat.com>
-L: linux-am33-list@redhat.com (moderated for non-subscribers)
-W: ftp://ftp.redhat.com/pub/redhat/gnupro/AM33/
-S: Maintained
-F: Documentation/mn10300/
-F: arch/mn10300/
-
PARALLEL LCD/KEYPAD PANEL DRIVER
M: Willy Tarreau <willy@haproxy.com>
M: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0
-config MN10300
- def_bool y
- select HAVE_EXIT_THREAD
- select HAVE_OPROFILE
- select HAVE_UID16
- select GENERIC_IRQ_SHOW
- select ARCH_WANT_IPC_PARSE_VERSION
- select HAVE_ARCH_TRACEHOOK
- select HAVE_ARCH_KGDB
- select GENERIC_ATOMIC64
- select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER
- select VIRT_TO_BUS
- select GENERIC_CLOCKEVENTS
- select MODULES_USE_ELF_RELA
- select OLD_SIGSUSPEND3
- select OLD_SIGACTION
- select HAVE_DEBUG_STACKOVERFLOW
- select ARCH_NO_COHERENT_DMA_MMAP
-
-config AM33_2
- def_bool n
-
-config AM33_3
- def_bool n
-
-config AM34_2
- def_bool n
- select MN10300_HAS_ATOMIC_OPS_UNIT
- select MN10300_HAS_CACHE_SNOOP
-
-config ERRATUM_NEED_TO_RELOAD_MMUCTR
- def_bool y if AM33_3 || AM34_2
-
-config MMU
- def_bool y
-
-config HIGHMEM
- def_bool n
-
-config NUMA
- def_bool n
-
-config RWSEM_GENERIC_SPINLOCK
- def_bool y
-
-config RWSEM_XCHGADD_ALGORITHM
- bool
-
-config GENERIC_CALIBRATE_DELAY
- def_bool y
-
-config GENERIC_HWEIGHT
- def_bool y
-
-config GENERIC_BUG
- def_bool y
- depends on BUG
-
-config QUICKLIST
- def_bool y
-
-config ARCH_HAS_ILOG2_U32
- def_bool y
-
-config HOTPLUG_CPU
- def_bool n
-
-source "init/Kconfig"
-
-source "kernel/Kconfig.freezer"
-
-
-menu "Panasonic MN10300 system setup"
-
-choice
- prompt "Unit type"
- default MN10300_UNIT_ASB2303
- help
- This option specifies board for which the kernel will be
- compiled. It affects the external peripherals catered for.
-
-config MN10300_UNIT_ASB2303
- bool "ASB2303"
-
-config MN10300_UNIT_ASB2305
- bool "ASB2305"
-
-config MN10300_UNIT_ASB2364
- bool "ASB2364"
- select SMSC911X_ARCH_HOOKS if SMSC911X
-
-endchoice
-
-choice
- prompt "Processor support"
- default MN10300_PROC_MN103E010
- help
- This option specifies the processor for which the kernel will be
- compiled. It affects the on-chip peripherals catered for.
-
-config MN10300_PROC_MN103E010
- bool "MN103E010"
- depends on MN10300_UNIT_ASB2303 || MN10300_UNIT_ASB2305
- select AM33_2
- select MN10300_PROC_HAS_TTYSM0
- select MN10300_PROC_HAS_TTYSM1
- select MN10300_PROC_HAS_TTYSM2
-
-config MN10300_PROC_MN2WS0050
- bool "MN2WS0050"
- depends on MN10300_UNIT_ASB2364
- select AM34_2
- select MN10300_PROC_HAS_TTYSM0
- select MN10300_PROC_HAS_TTYSM1
- select MN10300_PROC_HAS_TTYSM2
-
-endchoice
-
-config MN10300_HAS_ATOMIC_OPS_UNIT
- def_bool n
- help
- This should be enabled if the processor has an atomic ops unit
- capable of doing LL/SC equivalent operations.
-
-config FPU
- bool "FPU present"
- default y
- depends on MN10300_PROC_MN103E010 || MN10300_PROC_MN2WS0050
-
-config LAZY_SAVE_FPU
- bool "Save FPU state lazily"
- default y
- depends on FPU && !SMP
- help
- Enable this to be lazy in the saving of the FPU state to the owning
- task's thread struct. This is useful if most tasks on the system
- don't use the FPU as only those tasks that use it will pass it
- between them, and the state needn't be saved for a task that isn't
- using it.
-
- This can't be so easily used on SMP as the process that owns the FPU
- state on a CPU may be currently running on another CPU, so for the
- moment, it is disabled.
-
-source "arch/mn10300/mm/Kconfig.cache"
-
-config MN10300_TLB_USE_PIDR
- def_bool y
-
-menu "Memory layout options"
-
-config KERNEL_RAM_BASE_ADDRESS
- hex "Base address of kernel RAM"
- default "0x90000000"
-
-config INTERRUPT_VECTOR_BASE
- hex "Base address of vector table"
- default "0x90000000"
- help
- The base address of the vector table will be programmed into
- the TBR register. It must be on 16MiB address boundary.
-
-config KERNEL_TEXT_ADDRESS
- hex "Base address of kernel"
- default "0x90001000"
-
-config KERNEL_ZIMAGE_BASE_ADDRESS
- hex "Base address of compressed vmlinux image"
- default "0x50700000"
-
-config BOOT_STACK_OFFSET
- hex
- default "0xF00" if SMP
- default "0xFF0" if !SMP
-
-config BOOT_STACK_SIZE
- hex
- depends on SMP
- default "0x100"
-endmenu
-
-config SMP
- bool "Symmetric multi-processing support"
- default y
- depends on MN10300_PROC_MN2WS0050
- ---help---
- This enables support for systems with more than one CPU. If you have
- a system with only one CPU, say N. If you have a system with more
- than one CPU, say Y.
-
- If you say N here, the kernel will run on uni- and multiprocessor
- machines, but will use only one CPU of a multiprocessor machine. If
- you say Y here, the kernel will run on many, but not all,
- uniprocessor machines. On a uniprocessor machine, the kernel
- will run faster if you say N here.
-
- See also <file:Documentation/x86/i386/IO-APIC.txt>,
- <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
- <http://www.tldp.org/docs.html#howto>.
-
- If you don't know what to do here, say N.
-
-config NR_CPUS
- int
- depends on SMP
- default "2"
-
-source "kernel/Kconfig.preempt"
-
-config MN10300_CURRENT_IN_E2
- bool "Hold current task address in E2 register"
- depends on !SMP
- default y
- help
- This option removes the E2/R2 register from the set available to gcc
- for normal use and instead uses it to store the address of the
- current process's task_struct whilst in the kernel.
-
- This means the kernel doesn't need to calculate the address each time
- "current" is used (take SP, AND with mask and dereference pointer
- just to get the address), and instead can just use E2+offset
- addressing each time.
-
- This has no effect on userspace.
-
-config MN10300_USING_JTAG
- bool "Using JTAG to debug kernel"
- default y
- help
- This options indicates that JTAG will be used to debug the kernel. It
- suppresses the use of certain hardware debugging features, such as
- single-stepping, which are taken over completely by the JTAG unit.
-
-source "kernel/Kconfig.hz"
-
-config MN10300_RTC
- bool "Using MN10300 RTC"
- depends on MN10300_PROC_MN103E010 || MN10300_PROC_MN2WS0050
- select RTC_CLASS
- select RTC_DRV_CMOS
- select RTC_SYSTOHC
- default n
- help
- This option enables support for the RTC, thus enabling time to be
- tracked, even when system is powered down. This is available on-chip
- on the MN103E010.
-
-config MN10300_WD_TIMER
- bool "Using MN10300 watchdog timer"
- default y
- help
- This options indicates that the watchdog timer will be used.
-
-config PCI
- bool "Use PCI"
- depends on MN10300_UNIT_ASB2305
- default y
- select GENERIC_PCI_IOMAP
- help
- Some systems (such as the ASB2305) have PCI onboard. If you have one
- of these boards and you wish to use the PCI facilities, say Y here.
-
- The PCI-HOWTO, available from
- <http://www.tldp.org/docs.html#howto>, contains valuable
- information about which PCI hardware does work under Linux and which
- doesn't.
-
-source "drivers/pci/Kconfig"
-
-source "drivers/pcmcia/Kconfig"
-
-menu "MN10300 internal serial options"
-
-config MN10300_PROC_HAS_TTYSM0
- bool
- default n
-
-config MN10300_PROC_HAS_TTYSM1
- bool
- default n
-
-config MN10300_PROC_HAS_TTYSM2
- bool
- default n
-
-config MN10300_TTYSM
- bool "Support for ttySM serial ports"
- depends on MN10300
- default y
- select SERIAL_CORE
- help
- This option enables support for the on-chip serial ports that the
- MN10300 has available.
-
-config MN10300_TTYSM_CONSOLE
- bool "Support for console on ttySM serial ports"
- depends on MN10300_TTYSM
- select SERIAL_CORE_CONSOLE
- help
- This option enables support for a console on the on-chip serial ports
- that the MN10300 has available.
-
-#
-# /dev/ttySM0
-#
-config MN10300_TTYSM0
- bool "Enable SIF0 (/dev/ttySM0)"
- depends on MN10300_TTYSM && MN10300_PROC_HAS_TTYSM0
- help
- Enable access to SIF0 through /dev/ttySM0 or gdb-stub
-
-choice
- prompt "Select the timer to supply the clock for SIF0"
- default MN10300_TTYSM0_TIMER8
- depends on MN10300_TTYSM0
-
-config MN10300_TTYSM0_TIMER8
- bool "Use timer 8 (16-bit)"
-
-config MN10300_TTYSM0_TIMER2
- bool "Use timer 2 (8-bit)"
-
-endchoice
-
-#
-# /dev/ttySM1
-#
-config MN10300_TTYSM1
- bool "Enable SIF1 (/dev/ttySM1)"
- depends on MN10300_TTYSM && MN10300_PROC_HAS_TTYSM1
- help
- Enable access to SIF1 through /dev/ttySM1 or gdb-stub
-
-choice
- prompt "Select the timer to supply the clock for SIF1"
- default MN10300_TTYSM1_TIMER12 \
- if !(AM33_2 || AM33_3)
- default MN10300_TTYSM1_TIMER9 \
- if AM33_2 || AM33_3
- depends on MN10300_TTYSM1
-
-config MN10300_TTYSM1_TIMER12
- bool "Use timer 12 (16-bit)"
- depends on !(AM33_2 || AM33_3)
-
-config MN10300_TTYSM1_TIMER9
- bool "Use timer 9 (16-bit)"
- depends on AM33_2 || AM33_3
-
-config MN10300_TTYSM1_TIMER3
- bool "Use timer 3 (8-bit)"
- depends on AM33_2 || AM33_3
-
-endchoice
-
-#
-# /dev/ttySM2
-#
-config MN10300_TTYSM2
- bool "Enable SIF2 (/dev/ttySM2)"
- depends on MN10300_TTYSM && MN10300_PROC_HAS_TTYSM2
- help
- Enable access to SIF2 through /dev/ttySM2 or gdb-stub
-
-choice
- prompt "Select the timer to supply the clock for SIF2"
- default MN10300_TTYSM2_TIMER3 \
- if !(AM33_2 || AM33_3)
- default MN10300_TTYSM2_TIMER10 \
- if AM33_2 || AM33_3
- depends on MN10300_TTYSM2
-
-config MN10300_TTYSM2_TIMER9
- bool "Use timer 9 (16-bit)"
- depends on !(AM33_2 || AM33_3)
-
-config MN10300_TTYSM2_TIMER1
- bool "Use timer 1 (8-bit)"
- depends on !(AM33_2 || AM33_3)
-
-config MN10300_TTYSM2_TIMER3
- bool "Use timer 3 (8-bit)"
- depends on !(AM33_2 || AM33_3)
-
-config MN10300_TTYSM2_TIMER10
- bool "Use timer 10 (16-bit)"
- depends on AM33_2 || AM33_3
-
-endchoice
-
-config MN10300_TTYSM2_CTS
- bool "Enable the use of the CTS line /dev/ttySM2"
- depends on MN10300_TTYSM2 && AM33_2
-
-endmenu
-
-menu "Interrupt request priority options"
-
-comment "[!] NOTE: A lower number/level indicates a higher priority (0 is highest, 6 is lowest)"
-
-comment "____Non-maskable interrupt levels____"
-comment "The following must be set to a higher priority than local_irq_disable() and on-chip serial"
-
-config DEBUGGER_IRQ_LEVEL
- int "DEBUGGER interrupt priority"
- depends on KERNEL_DEBUGGER
- range 0 1 if LINUX_CLI_LEVEL = 2
- range 0 2 if LINUX_CLI_LEVEL = 3
- range 0 3 if LINUX_CLI_LEVEL = 4
- range 0 4 if LINUX_CLI_LEVEL = 5
- range 0 5 if LINUX_CLI_LEVEL = 6
- default 0
-
-comment "The following must be set to a higher priority than local_irq_disable()"
-
-config MN10300_SERIAL_IRQ_LEVEL
- int "MN10300 on-chip serial interrupt priority"
- depends on MN10300_TTYSM
- range 1 1 if LINUX_CLI_LEVEL = 2
- range 1 2 if LINUX_CLI_LEVEL = 3
- range 1 3 if LINUX_CLI_LEVEL = 4
- range 1 4 if LINUX_CLI_LEVEL = 5
- range 1 5 if LINUX_CLI_LEVEL = 6
- default 1
-
-comment "-"
-comment "____Maskable interrupt levels____"
-
-config LINUX_CLI_LEVEL
- int "The highest interrupt priority excluded by local_irq_disable() (2-6)"
- range 2 6
- default 2
- help
- local_irq_disable() doesn't actually disable maskable interrupts -
- what it does is restrict the levels of interrupt which are permitted
- (a lower level indicates a higher priority) by lowering the value in
- EPSW.IM from 7. Any interrupt is permitted for which the level is
- lower than EPSW.IM.
-
- Certain interrupts, such as DEBUGGER and virtual MN10300 on-chip
- serial DMA interrupts are allowed to interrupt normal disabled
- sections.
-
-comment "The following must be set to a equal to or lower priority than LINUX_CLI_LEVEL"
-
-config TIMER_IRQ_LEVEL
- int "Kernel timer interrupt priority"
- range LINUX_CLI_LEVEL 6
- default 4
-
-config PCI_IRQ_LEVEL
- int "PCI interrupt priority"
- depends on PCI
- range LINUX_CLI_LEVEL 6
- default 5
-
-config ETHERNET_IRQ_LEVEL
- int "Ethernet interrupt priority"
- depends on SMC91X || SMC911X || SMSC911X
- range LINUX_CLI_LEVEL 6
- default 6
-
-config EXT_SERIAL_IRQ_LEVEL
- int "External serial port interrupt priority"
- depends on SERIAL_8250
- range LINUX_CLI_LEVEL 6
- default 6
-
-endmenu
-
-source "mm/Kconfig"
-
-menu "Power management options"
-source kernel/power/Kconfig
-endmenu
-
-endmenu
-
-
-menu "Executable formats"
-
-source "fs/Kconfig.binfmt"
-
-endmenu
-
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
-source "fs/Kconfig"
-
-source "arch/mn10300/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0
-menu "Kernel hacking"
-
-source "lib/Kconfig.debug"
-
-config DEBUG_DECOMPRESS_KERNEL
- bool "Using serial port during decompressing kernel"
- depends on DEBUG_KERNEL
- default n
- help
- If you say Y here you will confirm the start and the end of
- decompressing Linux seeing "Uncompressing Linux... " and
- "Ok, booting the kernel.\n" on console.
-
-config TEST_MISALIGNMENT_HANDLER
- bool "Run tests on the misalignment handler"
- depends on DEBUG_KERNEL
- default n
- help
- If you say Y here the kernel will execute a list of misaligned memory
- accesses to make sure the misalignment handler deals them with
- correctly. If it does not, the kernel will throw a BUG.
-
-config KPROBES
- bool "Kprobes"
- depends on DEBUG_KERNEL
- help
- Kprobes allows you to trap at almost any kernel address and
- execute a callback function. register_kprobe() establishes
- a probepoint and specifies the callback. Kprobes is useful
- for kernel debugging, non-intrusive instrumentation and testing.
- If in doubt, say "N".
-
-config GDBSTUB
- bool "Remote GDB kernel debugging"
- depends on DEBUG_KERNEL && DEPRECATED
- select DEBUG_INFO
- select FRAME_POINTER
- help
- If you say Y here, it will be possible to remotely debug the kernel
- using gdb. This enlarges your kernel ELF image disk size by several
- megabytes and requires a machine with more than 16 MB, better 32 MB
- RAM to avoid excessive linking time. This is only useful for kernel
- hackers. If unsure, say N.
-
- This is deprecated in favour of KGDB and will be removed in a later
- version.
-
-config GDBSTUB_IMMEDIATE
- bool "Break into GDB stub immediately"
- depends on GDBSTUB
- help
- If you say Y here, GDB stub will break into the program as soon as
- possible, leaving the program counter at the beginning of
- start_kernel() in init/main.c.
-
-config GDBSTUB_ALLOW_SINGLE_STEP
- bool "Allow software single-stepping in GDB stub"
- depends on GDBSTUB && !SMP && !PREEMPT
- help
- Allow GDB stub to perform software single-stepping through the
- kernel. This doesn't work very well on SMP or preemptible kernels as
- it uses temporary breakpoints to emulate single-stepping.
-
-config GDB_CONSOLE
- bool "Console output to GDB"
- depends on GDBSTUB
- help
- If you are using GDB for remote debugging over a serial port and
- would like kernel messages to be formatted into GDB $O packets so
- that GDB prints them as program output, say 'Y'.
-
-config GDBSTUB_DEBUGGING
- bool "Debug GDB stub by messages to serial port"
- depends on GDBSTUB
- help
- This causes debugging messages to be displayed at various points
- during execution of the GDB stub routines. Such messages will be
- displayed on ttyS0 if that isn't the GDB stub's port, or ttySM0
- otherwise.
-
-config GDBSTUB_DEBUG_ENTRY
- bool "Debug GDB stub entry"
- depends on GDBSTUB_DEBUGGING
- help
- This option causes information to be displayed about entry to or exit
- from the main GDB stub routine.
-
-config GDBSTUB_DEBUG_PROTOCOL
- bool "Debug GDB stub protocol"
- depends on GDBSTUB_DEBUGGING
- help
- This option causes information to be displayed about the GDB remote
- protocol messages generated exchanged with GDB.
-
-config GDBSTUB_DEBUG_IO
- bool "Debug GDB stub I/O"
- depends on GDBSTUB_DEBUGGING
- help
- This option causes information to be displayed about GDB stub's
- low-level I/O.
-
-config GDBSTUB_DEBUG_BREAKPOINT
- bool "Debug GDB stub breakpoint management"
- depends on GDBSTUB_DEBUGGING
- help
- This option causes information to be displayed about GDB stub's
- breakpoint management.
-
-choice
- prompt "GDB stub port"
- default GDBSTUB_ON_TTYSM0
- depends on GDBSTUB
- help
- Select the serial port used for GDB-stub.
-
-config GDBSTUB_ON_TTYSM0
- bool "/dev/ttySM0 [SIF0]"
- depends on MN10300_TTYSM0
- select GDBSTUB_ON_TTYSMx
-
-config GDBSTUB_ON_TTYSM1
- bool "/dev/ttySM1 [SIF1]"
- depends on MN10300_TTYSM1
- select GDBSTUB_ON_TTYSMx
-
-config GDBSTUB_ON_TTYSM2
- bool "/dev/ttySM2 [SIF2]"
- depends on MN10300_TTYSM2
- select GDBSTUB_ON_TTYSMx
-
-config GDBSTUB_ON_TTYS0
- bool "/dev/ttyS0"
- select GDBSTUB_ON_TTYSx
-
-config GDBSTUB_ON_TTYS1
- bool "/dev/ttyS1"
- select GDBSTUB_ON_TTYSx
-
-endchoice
-
-config GDBSTUB_ON_TTYSMx
- bool
- depends on GDBSTUB_ON_TTYSM0 || GDBSTUB_ON_TTYSM1 || GDBSTUB_ON_TTYSM2
- default y
-
-config GDBSTUB_ON_TTYSx
- bool
- depends on GDBSTUB_ON_TTYS0 || GDBSTUB_ON_TTYS1
- default y
-
-endmenu
-
-config KERNEL_DEBUGGER
- def_bool y
- depends on GDBSTUB || KGDB
+++ /dev/null
-###############################################################################
-#
-# MN10300 Kernel makefile system specifications
-#
-# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
-# Modified by David Howells (dhowells@redhat.com)
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public Licence
-# as published by the Free Software Foundation; either version
-# 2 of the Licence, or (at your option) any later version.
-#
-###############################################################################
-
-KBUILD_DEFCONFIG := asb2303_defconfig
-
-CCSPECS := $(shell $(CC) -v 2>&1 | grep "^Reading specs from " | head -1 | cut -c20-)
-CCDIR := $(strip $(patsubst %/specs,%,$(CCSPECS)))
-KBUILD_CPPFLAGS += -nostdinc -I$(CCDIR)/include
-
-LDFLAGS :=
-OBJCOPYFLAGS := -O binary -R .note -R .comment -R .GCC-command-line -R .note.gnu.build-id -S
-#LDFLAGS_vmlinux := -Map linkmap.txt
-CHECKFLAGS +=
-
-PROCESSOR := unset
-UNIT := unset
-
-KBUILD_CFLAGS += -mam33 -DCPU=AM33 $(call cc-option,-mmem-funcs,)
-KBUILD_AFLAGS += -mam33 -DCPU=AM33
-
-ifeq ($(CONFIG_MN10300_CURRENT_IN_E2),y)
-KBUILD_CFLAGS += -ffixed-e2 -fcall-saved-e5
-endif
-
-ifeq ($(CONFIG_MN10300_PROC_MN103E010),y)
-PROCESSOR := mn103e010
-endif
-ifeq ($(CONFIG_MN10300_PROC_MN2WS0050),y)
-PROCESSOR := mn2ws0050
-endif
-
-ifeq ($(CONFIG_MN10300_UNIT_ASB2303),y)
-UNIT := asb2303
-endif
-ifeq ($(CONFIG_MN10300_UNIT_ASB2305),y)
-UNIT := asb2305
-endif
-ifeq ($(CONFIG_MN10300_UNIT_ASB2364),y)
-UNIT := asb2364
-endif
-
-
-head-y := arch/mn10300/kernel/head.o
-
-core-y += arch/mn10300/kernel/ arch/mn10300/mm/
-
-ifneq ($(PROCESSOR),unset)
-core-y += arch/mn10300/proc-$(PROCESSOR)/
-endif
-ifneq ($(UNIT),unset)
-core-y += arch/mn10300/unit-$(UNIT)/
-endif
-libs-y += arch/mn10300/lib/
-
-drivers-$(CONFIG_OPROFILE) += arch/mn10300/oprofile/
-
-boot := arch/mn10300/boot
-
-.PHONY: zImage
-
-KBUILD_IMAGE := $(boot)/zImage
-CLEAN_FILES += $(boot)/zImage
-CLEAN_FILES += $(boot)/compressed/vmlinux
-CLEAN_FILES += $(boot)/compressed/vmlinux.bin
-CLEAN_FILES += $(boot)/compressed/vmlinux.bin.gz
-
-zImage: vmlinux
- $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
-
-all: zImage
-
-bootstrap:
- $(Q)$(MAKEBOOT) bootstrap
-
-archclean:
- $(Q)$(MAKE) $(clean)=arch/mn10300/proc-mn103e010
- $(Q)$(MAKE) $(clean)=arch/mn10300/unit-asb2303
- $(Q)$(MAKE) $(clean)=arch/mn10300/unit-asb2305
-
-define archhelp
- echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
-endef
-
-#
-# include the appropriate processor- and unit-specific headers
-#
-KBUILD_CPPFLAGS += -I$(srctree)/arch/mn10300/proc-$(PROCESSOR)/include
-KBUILD_CPPFLAGS += -I$(srctree)/arch/mn10300/unit-$(UNIT)/include
+++ /dev/null
-# MN10300 kernel compressor and wrapper
-#
-# Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
-# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
-# Written by David Howells (dhowells@redhat.com)
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public Licence
-# as published by the Free Software Foundation; either version
-# 2 of the Licence, or (at your option) any later version.
-#
-
-targets := vmlinux.bin zImage
-
-subdir- := compressed
-
-# ---------------------------------------------------------------------------
-
-
-$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
- $(call if_changed,objcopy)
- @echo 'Kernel: $@ is ready'
-
-$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
- $(call if_changed,objcopy)
-
-$(obj)/compressed/vmlinux: FORCE
- $(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0
-#
-# Create a compressed vmlinux image from the original vmlinux
-#
-
-targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o
-
-LDFLAGS_vmlinux := -Ttext $(CONFIG_KERNEL_ZIMAGE_BASE_ADDRESS) -e startup_32
-
-$(obj)/vmlinux: $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o FORCE
- $(call if_changed,ld)
-
-$(obj)/vmlinux.bin: vmlinux FORCE
- $(call if_changed,objcopy)
-
-$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
- $(call if_changed,gzip)
-
-LDFLAGS_piggy.o := -r --format binary --oformat elf32-am33lin -T
-
-$(obj)/piggy.o: $(obj)/vmlinux.lds $(obj)/vmlinux.bin.gz FORCE
- $(call if_changed,ld)
+++ /dev/null
-/* Boot entry point for a compressed MN10300 kernel
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
- .section .text
-
-#define DEBUG
-
-#include <linux/linkage.h>
-#include <asm/cpu-regs.h>
-#include <asm/cache.h>
-#ifdef CONFIG_SMP
-#include <proc/smp-regs.h>
-#endif
-
- .globl startup_32
-startup_32:
-#ifdef CONFIG_SMP
- #
- # Secondary CPUs jump directly to the kernel entry point
- #
- # Must save primary CPU's D0-D2 registers as they hold boot parameters
- #
- mov (CPUID), d3
- and CPUID_MASK,d3
- beq startup_primary
- mov CONFIG_KERNEL_TEXT_ADDRESS,a0
- jmp (a0)
-
-startup_primary:
-#endif /* CONFIG_SMP */
-
- # first save parameters from bootloader
- mov param_save_area,a0
- mov d0,(a0)
- mov d1,(4,a0)
- mov d2,(8,a0)
-
- mov sp,a3
- mov decomp_stack+0x2000-4,a0
- mov a0,sp
-
- # invalidate and enable both of the caches
- mov CHCTR,a0
- clr d0
- movhu d0,(a0) # turn off first
- mov CHCTR_ICINV|CHCTR_DCINV,d0
- movhu d0,(a0)
- setlb
- mov (a0),d0
- btst CHCTR_ICBUSY|CHCTR_DCBUSY,d0 # wait till not busy
- lne
-
-#ifdef CONFIG_MN10300_CACHE_ENABLED
-#ifdef CONFIG_MN10300_CACHE_WBACK
- mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRBACK,d0
-#else
- mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRTHROUGH,d0
-#endif /* WBACK */
- movhu d0,(a0) # enable
-#endif /* !ENABLED */
-
- # clear the BSS area
- mov __bss_start,a0
- mov _end,a1
- clr d0
-bssclear:
- cmp a1,a0
- bge bssclear_end
- movbu d0,(a0)
- inc a0
- bra bssclear
-bssclear_end:
-
- # decompress the kernel
- call decompress_kernel[],0
-#ifdef CONFIG_MN10300_CACHE_WBACK
- call mn10300_dcache_flush_inv[],0
-#endif
-
- # disable caches again
- mov CHCTR,a0
- clr d0
- movhu d0,(a0)
- setlb
- mov (a0),d0
- btst CHCTR_ICBUSY|CHCTR_DCBUSY,d0 # wait till not busy
- lne
-
- mov param_save_area,a0
- mov (a0),d0
- mov (4,a0),d1
- mov (8,a0),d2
-
- # jump to the kernel proper entry point
- mov a3,sp
- mov CONFIG_KERNEL_TEXT_ADDRESS,a0
- jmp (a0)
-
-
-###############################################################################
-#
-# Cache flush routines
-#
-###############################################################################
-#ifdef CONFIG_MN10300_CACHE_WBACK
-mn10300_dcache_flush_inv:
- movhu (CHCTR),d0
- btst CHCTR_DCEN,d0
- beq mn10300_dcache_flush_inv_end
-
- mov L1_CACHE_NENTRIES,d1
- clr a1
-
-mn10300_dcache_flush_inv_loop:
- mov (DCACHE_PURGE_WAY0(0),a1),d0 # unconditional purge
- mov (DCACHE_PURGE_WAY1(0),a1),d0 # unconditional purge
- mov (DCACHE_PURGE_WAY2(0),a1),d0 # unconditional purge
- mov (DCACHE_PURGE_WAY3(0),a1),d0 # unconditional purge
-
- add L1_CACHE_BYTES,a1
- add -1,d1
- bne mn10300_dcache_flush_inv_loop
-
-mn10300_dcache_flush_inv_end:
- ret [],0
-#endif /* CONFIG_MN10300_CACHE_WBACK */
-
-
-###############################################################################
-#
-# Data areas
-#
-###############################################################################
- .data
- .align 4
-param_save_area:
- .rept 3
- .word 0
- .endr
-
- .section .bss
- .align 4
-decomp_stack:
- .space 0x2000
+++ /dev/null
-/* MN10300 Miscellaneous helper routines for kernel decompressor
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Modified by David Howells (dhowells@redhat.com)
- * - Derived from arch/x86/boot/compressed/misc_32.c
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/compiler.h>
-#include <asm/serial-regs.h>
-#include "misc.h"
-
-#ifndef CONFIG_GDBSTUB_ON_TTYSx
-/* display 'Uncompressing Linux... ' messages on ttyS0 or ttyS1 */
-#if 1 /* ttyS0 */
-#define CYG_DEV_BASE 0xA6FB0000
-#else /* ttyS1 */
-#define CYG_DEV_BASE 0xA6FC0000
-#endif
-
-#define CYG_DEV_THR (*((volatile __u8*)(CYG_DEV_BASE + 0x00)))
-#define CYG_DEV_MCR (*((volatile __u8*)(CYG_DEV_BASE + 0x10)))
-#define SIO_MCR_DTR 0x01
-#define SIO_MCR_RTS 0x02
-#define CYG_DEV_LSR (*((volatile __u8*)(CYG_DEV_BASE + 0x14)))
-#define SIO_LSR_THRE 0x20 /* transmitter holding register empty */
-#define SIO_LSR_TEMT 0x40 /* transmitter register empty */
-#define CYG_DEV_MSR (*((volatile __u8*)(CYG_DEV_BASE + 0x18)))
-#define SIO_MSR_CTS 0x10 /* clear to send */
-#define SIO_MSR_DSR 0x20 /* data set ready */
-
-#define LSR_WAIT_FOR(STATE) \
- do { while (!(CYG_DEV_LSR & SIO_LSR_##STATE)) {} } while (0)
-#define FLOWCTL_QUERY(LINE) \
- ({ CYG_DEV_MSR & SIO_MSR_##LINE; })
-#define FLOWCTL_WAIT_FOR(LINE) \
- do { while (!(CYG_DEV_MSR & SIO_MSR_##LINE)) {} } while (0)
-#define FLOWCTL_CLEAR(LINE) \
- do { CYG_DEV_MCR &= ~SIO_MCR_##LINE; } while (0)
-#define FLOWCTL_SET(LINE) \
- do { CYG_DEV_MCR |= SIO_MCR_##LINE; } while (0)
-#endif
-
-/*
- * gzip declarations
- */
-
-#define OF(args) args
-#define STATIC static
-
-#undef memset
-#undef memcpy
-
-static inline void *memset(const void *s, int c, size_t n)
-{
- int i;
- char *ss = (char *) s;
-
- for (i = 0; i < n; i++)
- ss[i] = c;
- return (void *)s;
-}
-
-#define memzero(s, n) memset((s), 0, (n))
-
-static inline void *memcpy(void *__dest, const void *__src, size_t __n)
-{
- int i;
- const char *s = __src;
- char *d = __dest;
-
- for (i = 0; i < __n; i++)
- d[i] = s[i];
- return __dest;
-}
-
-typedef unsigned char uch;
-typedef unsigned short ush;
-typedef unsigned long ulg;
-
-#define WSIZE 0x8000 /* Window size must be at least 32k, and a power of
- * two */
-
-static uch *inbuf; /* input buffer */
-static uch window[WSIZE]; /* sliding window buffer */
-
-static unsigned insize; /* valid bytes in inbuf */
-static unsigned inptr; /* index of next byte to be processed in inbuf */
-static unsigned outcnt; /* bytes in output buffer */
-
-/* gzip flag byte */
-#define ASCII_FLAG 0x01 /* bit 0 set: file probably ASCII text */
-#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
-#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
-#define COMMENT 0x10 /* bit 4 set: file comment present */
-#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
-#define RESERVED 0xC0 /* bit 6,7: reserved */
-
-/* Diagnostic functions */
-#ifdef DEBUG
-# define Assert(cond, msg) { if (!(cond)) error(msg); }
-# define Trace(x) fprintf x
-# define Tracev(x) { if (verbose) fprintf x ; }
-# define Tracevv(x) { if (verbose > 1) fprintf x ; }
-# define Tracec(c, x) { if (verbose && (c)) fprintf x ; }
-# define Tracecv(c, x) { if (verbose > 1 && (c)) fprintf x ; }
-#else
-# define Assert(cond, msg)
-# define Trace(x)
-# define Tracev(x)
-# define Tracevv(x)
-# define Tracec(c, x)
-# define Tracecv(c, x)
-#endif
-
-static int fill_inbuf(void);
-static void flush_window(void);
-static void error(const char *) __attribute__((noreturn));
-static void kputs(const char *);
-
-static inline unsigned char get_byte(void)
-{
- unsigned char ch = inptr < insize ? inbuf[inptr++] : fill_inbuf();
-
-#if 0
- char hex[3];
- hex[0] = ((ch & 0x0f) > 9) ?
- ((ch & 0x0f) + 'A' - 0xa) : ((ch & 0x0f) + '0');
- hex[1] = ((ch >> 4) > 9) ?
- ((ch >> 4) + 'A' - 0xa) : ((ch >> 4) + '0');
- hex[2] = 0;
- kputs(hex);
-#endif
- return ch;
-}
-
-/*
- * This is set up by the setup-routine at boot-time
- */
-#define EXT_MEM_K (*(unsigned short *)0x90002)
-#ifndef STANDARD_MEMORY_BIOS_CALL
-#define ALT_MEM_K (*(unsigned long *) 0x901e0)
-#endif
-#define SCREEN_INFO (*(struct screen_info *)0x90000)
-
-static long bytes_out;
-static uch *output_data;
-static unsigned long output_ptr;
-
-
-static unsigned long free_mem_ptr = (unsigned long) &end;
-static unsigned long free_mem_end_ptr = (unsigned long) &end + 0x90000;
-
-#define INPLACE_MOVE_ROUTINE 0x1000
-#define LOW_BUFFER_START 0x2000
-#define LOW_BUFFER_END 0x90000
-#define LOW_BUFFER_SIZE (LOW_BUFFER_END - LOW_BUFFER_START)
-#define HEAP_SIZE 0x3000
-static int high_loaded;
-static uch *high_buffer_start /* = (uch *)(((ulg)&end) + HEAP_SIZE)*/;
-
-static char *vidmem = (char *)0xb8000;
-static int lines, cols;
-
-#define BOOTLOADER_INFLATE
-#include "../../../../lib/inflate.c"
-
-static inline void scroll(void)
-{
- int i;
-
- memcpy(vidmem, vidmem + cols * 2, (lines - 1) * cols * 2);
- for (i = (lines - 1) * cols * 2; i < lines * cols * 2; i += 2)
- vidmem[i] = ' ';
-}
-
-static inline void kputchar(unsigned char ch)
-{
-#ifdef CONFIG_MN10300_UNIT_ASB2305
- while (SC0STR & SC01STR_TBF)
- continue;
-
- if (ch == 0x0a) {
- SC0TXB = 0x0d;
- while (SC0STR & SC01STR_TBF)
- continue;
- }
-
- SC0TXB = ch;
-
-#else
- while (SC1STR & SC01STR_TBF)
- continue;
-
- if (ch == 0x0a) {
- SC1TXB = 0x0d;
- while (SC1STR & SC01STR_TBF)
- continue;
- }
-
- SC1TXB = ch;
-
-#endif
-}
-
-static void kputs(const char *s)
-{
-#ifdef CONFIG_DEBUG_DECOMPRESS_KERNEL
-#ifndef CONFIG_GDBSTUB_ON_TTYSx
- char ch;
-
- FLOWCTL_SET(DTR);
-
- while (*s) {
- LSR_WAIT_FOR(THRE);
-
- ch = *s++;
- if (ch == 0x0a) {
- CYG_DEV_THR = 0x0d;
- LSR_WAIT_FOR(THRE);
- }
- CYG_DEV_THR = ch;
- }
-
- FLOWCTL_CLEAR(DTR);
-#else
-
- for (; *s; s++)
- kputchar(*s);
-
-#endif
-#endif /* CONFIG_DEBUG_DECOMPRESS_KERNEL */
-}
-
-/* ===========================================================================
- * Fill the input buffer. This is called only when the buffer is empty
- * and at least one byte is really needed.
- */
-static int fill_inbuf()
-{
- if (insize != 0)
- error("ran out of input data\n");
-
- inbuf = input_data;
- insize = input_len;
- inptr = 1;
- return inbuf[0];
-}
-
-/* ===========================================================================
- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
- * (Used for the decompressed data only.)
- */
-static void flush_window_low(void)
-{
- ulg c = crc; /* temporary variable */
- unsigned n;
- uch *in, *out, ch;
-
- in = window;
- out = &output_data[output_ptr];
- for (n = 0; n < outcnt; n++) {
- ch = *out++ = *in++;
- c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
- }
- crc = c;
- bytes_out += (ulg)outcnt;
- output_ptr += (ulg)outcnt;
- outcnt = 0;
-}
-
-static void flush_window_high(void)
-{
- ulg c = crc; /* temporary variable */
- unsigned n;
- uch *in, ch;
- in = window;
- for (n = 0; n < outcnt; n++) {
- ch = *output_data++ = *in++;
- if ((ulg) output_data == LOW_BUFFER_END)
- output_data = high_buffer_start;
- c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
- }
- crc = c;
- bytes_out += (ulg)outcnt;
- outcnt = 0;
-}
-
-static void flush_window(void)
-{
- if (high_loaded)
- flush_window_high();
- else
- flush_window_low();
-}
-
-static void error(const char *x)
-{
- kputs("\n\n");
- kputs(x);
- kputs("\n\n -- System halted");
-
- while (1)
- /* Halt */;
-}
-
-#define STACK_SIZE (4096)
-
-long user_stack[STACK_SIZE];
-
-struct {
- long *a;
- short b;
-} stack_start = { &user_stack[STACK_SIZE], 0 };
-
-void setup_normal_output_buffer(void)
-{
-#ifdef STANDARD_MEMORY_BIOS_CALL
- if (EXT_MEM_K < 1024)
- error("Less than 2MB of memory.\n");
-#else
- if ((ALT_MEM_K > EXT_MEM_K ? ALT_MEM_K : EXT_MEM_K) < 1024)
- error("Less than 2MB of memory.\n");
-#endif
- output_data = (char *) 0x100000; /* Points to 1M */
-}
-
-struct moveparams {
- uch *low_buffer_start;
- int lcount;
- uch *high_buffer_start;
- int hcount;
-};
-
-void setup_output_buffer_if_we_run_high(struct moveparams *mv)
-{
- high_buffer_start = (uch *)(((ulg) &end) + HEAP_SIZE);
-#ifdef STANDARD_MEMORY_BIOS_CALL
- if (EXT_MEM_K < (3 * 1024))
- error("Less than 4MB of memory.\n");
-#else
- if ((ALT_MEM_K > EXT_MEM_K ? ALT_MEM_K : EXT_MEM_K) < (3 * 1024))
- error("Less than 4MB of memory.\n");
-#endif
- mv->low_buffer_start = output_data = (char *) LOW_BUFFER_START;
- high_loaded = 1;
- free_mem_end_ptr = (long) high_buffer_start;
- if (0x100000 + LOW_BUFFER_SIZE > (ulg) high_buffer_start) {
- high_buffer_start = (uch *)(0x100000 + LOW_BUFFER_SIZE);
- mv->hcount = 0; /* say: we need not to move high_buffer */
- } else {
- mv->hcount = -1;
- }
- mv->high_buffer_start = high_buffer_start;
-}
-
-void close_output_buffer_if_we_run_high(struct moveparams *mv)
-{
- mv->lcount = bytes_out;
- if (bytes_out > LOW_BUFFER_SIZE) {
- mv->lcount = LOW_BUFFER_SIZE;
- if (mv->hcount)
- mv->hcount = bytes_out - LOW_BUFFER_SIZE;
- } else {
- mv->hcount = 0;
- }
-}
-
-#undef DEBUGFLAG
-#ifdef DEBUGFLAG
-int debugflag;
-#endif
-
-int decompress_kernel(struct moveparams *mv)
-{
-#ifdef DEBUGFLAG
- while (!debugflag)
- barrier();
-#endif
-
- output_data = (char *) CONFIG_KERNEL_TEXT_ADDRESS;
-
- makecrc();
- kputs("Uncompressing Linux... ");
- gunzip();
- kputs("Ok, booting the kernel.\n");
- return 0;
-}
+++ /dev/null
-/* Internal definitions for the MN10300 kernel decompressor
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-extern int end;
-
-/*
- * vmlinux.lds
- */
-extern char input_data[];
-extern int input_len;
+++ /dev/null
-SECTIONS
-{
- .data : {
- input_len = .;
- LONG(input_data_end - input_data) input_data = .;
- *(.data)
- input_data_end = .;
- }
-}
+++ /dev/null
-#!/bin/sh
-#
-# arch/mn10300/boot/install -c.sh
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# Licence. See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 1995 by Linus Torvalds
-#
-# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin
-#
-# "make install -c" script for i386 architecture
-#
-# Arguments:
-# $1 - kernel version
-# $2 - kernel image file
-# $3 - kernel map file
-# $4 - default install -c path (blank if root directory)
-# $5 - boot rom file
-#
-
-# User may have a custom install -c script
-
-rm -fr $4/../usr/include/linux $4/../usr/include/asm
-install -c -m 0755 $2 $4/vmlinuz
-install -c -m 0755 $5 $4/boot.rom
-install -c -m 0755 -d $4/../usr/include/linux
-cd ${srctree}/include/linux
-for i in `find . -maxdepth 1 -name '*.h' -print`; do
- install -c -m 0644 $i $4/../usr/include/linux
-done
-install -c -m 0755 -d $4/../usr/include/linux/byteorder
-cd ${srctree}/include/linux/byteorder
-for i in `find . -name '*.h' -print`; do
- install -c -m 0644 $i $4/../usr/include/linux/byteorder
-done
-install -c -m 0755 -d $4/../usr/include/linux/lockd
-cd ${srctree}/include/linux/lockd
-for i in `find . -name '*.h' -print`; do
- install -c -m 0644 $i $4/../usr/include/linux/lockd
-done
-install -c -m 0755 -d $4/../usr/include/linux/netfilter_ipv4
-cd ${srctree}/include/linux/netfilter_ipv4
-for i in `find . -name '*.h' -print`; do
- install -c -m 0644 $i $4/../usr/include/linux/netfilter_ipv4
-done
-install -c -m 0755 -d $4/../usr/include/linux/nfsd
-cd ${srctree}/include/linux/nfsd
-for i in `find . -name '*.h' -print`; do
- install -c -m 0644 $i $4/../usr/include/linux/nfsd/$i
-done
-install -c -m 0755 -d $4/../usr/include/linux/raid
-cd ${srctree}/include/linux/raid
-for i in `find . -name '*.h' -print`; do
- install -c -m 0644 $i $4/../usr/include/linux/raid
-done
-install -c -m 0755 -d $4/../usr/include/linux/sunrpc
-cd ${srctree}/include/linux/sunrpc
-for i in `find . -name '*.h' -print`; do
- install -c -m 0644 $i $4/../usr/include/linux/sunrpc
-done
-install -c -m 0755 -d $4/../usr/include/asm
-cd ${srctree}/include/asm
-for i in `find . -name '*.h' -print`; do
- install -c -m 0644 $i $4/../usr/include/asm
-done
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 1991, 1992 Linus Torvalds
- * Copyright (C) 1997 Martin Mares
- */
-
-/*
- * This file builds a disk-image from three different files:
- *
- * - bootsect: exactly 512 bytes of 8086 machine code, loads the rest
- * - setup: 8086 machine code, sets up system parm
- * - system: 80386 code for actual system
- *
- * It does some checking that all files are of the correct type, and
- * just writes the result to stdout, removing headers and padding to
- * the right amount. It also writes some system data to stderr.
- */
-
-/*
- * Changes by tytso to allow root device specification
- * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996
- * Cross compiling fixes by Gertjan van Wingerde, July 1996
- * Rewritten by Martin Mares, April 1997
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/sysmacros.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <asm/boot.h>
-
-#define DEFAULT_MAJOR_ROOT 0
-#define DEFAULT_MINOR_ROOT 0
-
-/* Minimal number of setup sectors (see also bootsect.S) */
-#define SETUP_SECTS 4
-
-uint8_t buf[1024];
-int fd;
-int is_big_kernel;
-
-__attribute__((noreturn))
-void die(const char *str, ...)
-{
- va_list args;
- va_start(args, str);
- vfprintf(stderr, str, args);
- fputc('\n', stderr);
- exit(1);
-}
-
-void file_open(const char *name)
-{
- fd = open(name, O_RDONLY, 0);
- if (fd < 0)
- die("Unable to open `%s': %m", name);
-}
-
-__attribute__((noreturn))
-void usage(void)
-{
- die("Usage: build [-b] bootsect setup system [rootdev] [> image]");
-}
-
-int main(int argc, char **argv)
-{
- unsigned int i, c, sz, setup_sectors;
- uint32_t sys_size;
- uint8_t major_root, minor_root;
- struct stat sb;
-
- if (argc > 2 && !strcmp(argv[1], "-b")) {
- is_big_kernel = 1;
- argc--, argv++;
- }
- if ((argc < 4) || (argc > 5))
- usage();
- if (argc > 4) {
- if (!strcmp(argv[4], "CURRENT")) {
- if (stat("/", &sb)) {
- perror("/");
- die("Couldn't stat /");
- }
- major_root = major(sb.st_dev);
- minor_root = minor(sb.st_dev);
- } else if (strcmp(argv[4], "FLOPPY")) {
- if (stat(argv[4], &sb)) {
- perror(argv[4]);
- die("Couldn't stat root device.");
- }
- major_root = major(sb.st_rdev);
- minor_root = minor(sb.st_rdev);
- } else {
- major_root = 0;
- minor_root = 0;
- }
- } else {
- major_root = DEFAULT_MAJOR_ROOT;
- minor_root = DEFAULT_MINOR_ROOT;
- }
- fprintf(stderr, "Root device is (%d, %d)\n", major_root, minor_root);
-
- file_open(argv[1]);
- i = read(fd, buf, sizeof(buf));
- fprintf(stderr, "Boot sector %d bytes.\n", i);
- if (i != 512)
- die("Boot block must be exactly 512 bytes");
- if (buf[510] != 0x55 || buf[511] != 0xaa)
- die("Boot block hasn't got boot flag (0xAA55)");
- buf[508] = minor_root;
- buf[509] = major_root;
- if (write(1, buf, 512) != 512)
- die("Write call failed");
- close(fd);
-
- /* Copy the setup code */
- file_open(argv[2]);
- for (i = 0; (c = read(fd, buf, sizeof(buf))) > 0; i += c)
- if (write(1, buf, c) != c)
- die("Write call failed");
- if (c != 0)
- die("read-error on `setup'");
- close(fd);
-
- /* Pad unused space with zeros */
- setup_sectors = (i + 511) / 512;
- /* for compatibility with ancient versions of LILO. */
- if (setup_sectors < SETUP_SECTS)
- setup_sectors = SETUP_SECTS;
- fprintf(stderr, "Setup is %d bytes.\n", i);
- memset(buf, 0, sizeof(buf));
- while (i < setup_sectors * 512) {
- c = setup_sectors * 512 - i;
- if (c > sizeof(buf))
- c = sizeof(buf);
- if (write(1, buf, c) != c)
- die("Write call failed");
- i += c;
- }
-
- file_open(argv[3]);
- if (fstat(fd, &sb))
- die("Unable to stat `%s': %m", argv[3]);
- sz = sb.st_size;
- fprintf(stderr, "System is %d kB\n", sz / 1024);
- sys_size = (sz + 15) / 16;
- /* 0x28000*16 = 2.5 MB, conservative estimate for the current maximum */
- if (sys_size > (is_big_kernel ? 0x28000 : DEF_SYSSIZE))
- die("System is too big. Try using %smodules.",
- is_big_kernel ? "" : "bzImage or ");
- if (sys_size > 0xffff)
- fprintf(stderr,
- "warning: kernel is too big for standalone boot "
- "from floppy\n");
- while (sz > 0) {
- int l, n;
-
- l = (sz > sizeof(buf)) ? sizeof(buf) : sz;
- n = read(fd, buf, l);
- if (n != l) {
- if (n < 0)
- die("Error reading %s: %m", argv[3]);
- else
- die("%s: Unexpected EOF", argv[3]);
- }
- if (write(1, buf, l) != l)
- die("Write failed");
- sz -= l;
- }
- close(fd);
-
- /* Write sizes to the bootsector */
- if (lseek(1, 497, SEEK_SET) != 497)
- die("Output: seek failed");
- buf[0] = setup_sectors;
- if (write(1, buf, 1) != 1)
- die("Write of setup sector count failed");
- if (lseek(1, 500, SEEK_SET) != 500)
- die("Output: seek failed");
- buf[0] = (sys_size & 0xff);
- buf[1] = ((sys_size >> 8) & 0xff);
- if (write(1, buf, 2) != 2)
- die("Write of image length failed");
-
- return 0;
-}
+++ /dev/null
-CONFIG_SYSVIPC=y
-CONFIG_BSD_PROCESS_ACCT=y
-CONFIG_TINY_RCU=y
-CONFIG_LOG_BUF_SHIFT=14
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-CONFIG_EXPERT=y
-# CONFIG_KALLSYMS is not set
-# CONFIG_HOTPLUG is not set
-# CONFIG_VM_EVENT_COUNTERS is not set
-CONFIG_SLAB=y
-CONFIG_PROFILING=y
-# CONFIG_BLOCK is not set
-CONFIG_PREEMPT=y
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
-CONFIG_MN10300_RTC=y
-CONFIG_MN10300_TTYSM_CONSOLE=y
-CONFIG_MN10300_TTYSM0=y
-CONFIG_MN10300_TTYSM1=y
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_DIAG is not set
-# CONFIG_IPV6 is not set
-# CONFIG_WIRELESS is not set
-CONFIG_MTD=y
-CONFIG_MTD_DEBUG=y
-CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
-CONFIG_MTD_CFI=y
-CONFIG_MTD_JEDECPROBE=y
-CONFIG_MTD_CFI_ADV_OPTIONS=y
-CONFIG_MTD_CFI_GEOMETRY=y
-CONFIG_MTD_CFI_I4=y
-CONFIG_MTD_CFI_AMDSTD=y
-CONFIG_MTD_PHYSMAP=y
-CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
-CONFIG_SMC91X=y
-# CONFIG_WLAN is not set
-# CONFIG_INPUT is not set
-# CONFIG_SERIO is not set
-# CONFIG_VT is not set
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_EXTENDED=y
-CONFIG_SERIAL_8250_SHARE_IRQ=y
-# CONFIG_HW_RANDOM is not set
-CONFIG_RTC=y
-# CONFIG_HWMON is not set
-# CONFIG_USB_SUPPORT is not set
-CONFIG_PROC_KCORE=y
-# CONFIG_PROC_PAGE_MONITOR is not set
-CONFIG_TMPFS=y
-CONFIG_JFFS2_FS=y
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-CONFIG_ROOT_NFS=y
-CONFIG_MAGIC_SYSRQ=y
-CONFIG_STRIP_ASM_SYMS=y
+++ /dev/null
-CONFIG_SYSVIPC=y
-CONFIG_POSIX_MQUEUE=y
-CONFIG_BSD_PROCESS_ACCT=y
-CONFIG_TASKSTATS=y
-CONFIG_TASK_DELAY_ACCT=y
-CONFIG_TASK_XACCT=y
-CONFIG_TASK_IO_ACCOUNTING=y
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_CGROUPS=y
-CONFIG_CGROUP_FREEZER=y
-CONFIG_CGROUP_DEVICE=y
-CONFIG_CGROUP_CPUACCT=y
-CONFIG_RELAY=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-CONFIG_EXPERT=y
-# CONFIG_KALLSYMS is not set
-# CONFIG_VM_EVENT_COUNTERS is not set
-CONFIG_SLAB=y
-CONFIG_PROFILING=y
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-# CONFIG_BLOCK is not set
-CONFIG_MN10300_UNIT_ASB2364=y
-CONFIG_PREEMPT=y
-# CONFIG_MN10300_USING_JTAG is not set
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
-CONFIG_MN10300_TTYSM_CONSOLE=y
-CONFIG_MN10300_TTYSM0=y
-CONFIG_MN10300_TTYSM0_TIMER2=y
-CONFIG_MN10300_TTYSM1=y
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_DIAG is not set
-CONFIG_IPV6=y
-# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET6_XFRM_MODE_BEET is not set
-CONFIG_CONNECTOR=y
-CONFIG_MTD=y
-CONFIG_MTD_DEBUG=y
-CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
-CONFIG_MTD_CFI=y
-CONFIG_MTD_JEDECPROBE=y
-CONFIG_MTD_CFI_ADV_OPTIONS=y
-CONFIG_MTD_CFI_GEOMETRY=y
-CONFIG_MTD_CFI_I4=y
-CONFIG_MTD_CFI_AMDSTD=y
-CONFIG_MTD_PHYSMAP=y
-CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
-CONFIG_SMSC911X=y
-# CONFIG_INPUT_MOUSEDEV is not set
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_SERIO is not set
-# CONFIG_VT is not set
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_EXTENDED=y
-CONFIG_SERIAL_8250_SHARE_IRQ=y
-# CONFIG_HW_RANDOM is not set
-# CONFIG_HWMON is not set
-# CONFIG_USB_SUPPORT is not set
-CONFIG_PROC_KCORE=y
-# CONFIG_PROC_PAGE_MONITOR is not set
-CONFIG_TMPFS=y
-CONFIG_TMPFS_POSIX_ACL=y
-CONFIG_JFFS2_FS=y
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-CONFIG_ROOT_NFS=y
-CONFIG_MAGIC_SYSRQ=y
-CONFIG_STRIP_ASM_SYMS=y
-CONFIG_DEBUG_KERNEL=y
-CONFIG_DETECT_HUNG_TASK=y
-# CONFIG_DEBUG_BUGVERBOSE is not set
-CONFIG_DEBUG_INFO=y
+++ /dev/null
-
-generic-y += barrier.h
-generic-y += device.h
-generic-y += exec.h
-generic-y += extable.h
-generic-y += fb.h
-generic-y += irq_work.h
-generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
-generic-y += preempt.h
-generic-y += sections.h
-generic-y += trace_clock.h
-generic-y += word-at-a-time.h
+++ /dev/null
-#include <generated/asm-offsets.h>
+++ /dev/null
-/* MN10300 Atomic counter operations
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_ATOMIC_H
-#define _ASM_ATOMIC_H
-
-#include <asm/irqflags.h>
-#include <asm/cmpxchg.h>
-#include <asm/barrier.h>
-
-#ifndef CONFIG_SMP
-#include <asm-generic/atomic.h>
-#else
-
-/*
- * Atomic operations that C can't guarantee us. Useful for
- * resource counting etc..
- */
-
-#define ATOMIC_INIT(i) { (i) }
-
-#ifdef __KERNEL__
-
-/**
- * atomic_read - read atomic variable
- * @v: pointer of type atomic_t
- *
- * Atomically reads the value of @v. Note that the guaranteed
- */
-#define atomic_read(v) READ_ONCE((v)->counter)
-
-/**
- * atomic_set - set atomic variable
- * @v: pointer of type atomic_t
- * @i: required value
- *
- * Atomically sets the value of @v to @i. Note that the guaranteed
- */
-#define atomic_set(v, i) WRITE_ONCE(((v)->counter), (i))
-
-#define ATOMIC_OP(op) \
-static inline void atomic_##op(int i, atomic_t *v) \
-{ \
- int retval, status; \
- \
- asm volatile( \
- "1: mov %4,(_AAR,%3) \n" \
- " mov (_ADR,%3),%1 \n" \
- " " #op " %5,%1 \n" \
- " mov %1,(_ADR,%3) \n" \
- " mov (_ADR,%3),%0 \n" /* flush */ \
- " mov (_ASR,%3),%0 \n" \
- " or %0,%0 \n" \
- " bne 1b \n" \
- : "=&r"(status), "=&r"(retval), "=m"(v->counter) \
- : "a"(ATOMIC_OPS_BASE_ADDR), "r"(&v->counter), "r"(i) \
- : "memory", "cc"); \
-}
-
-#define ATOMIC_OP_RETURN(op) \
-static inline int atomic_##op##_return(int i, atomic_t *v) \
-{ \
- int retval, status; \
- \
- asm volatile( \
- "1: mov %4,(_AAR,%3) \n" \
- " mov (_ADR,%3),%1 \n" \
- " " #op " %5,%1 \n" \
- " mov %1,(_ADR,%3) \n" \
- " mov (_ADR,%3),%0 \n" /* flush */ \
- " mov (_ASR,%3),%0 \n" \
- " or %0,%0 \n" \
- " bne 1b \n" \
- : "=&r"(status), "=&r"(retval), "=m"(v->counter) \
- : "a"(ATOMIC_OPS_BASE_ADDR), "r"(&v->counter), "r"(i) \
- : "memory", "cc"); \
- return retval; \
-}
-
-#define ATOMIC_FETCH_OP(op) \
-static inline int atomic_fetch_##op(int i, atomic_t *v) \
-{ \
- int retval, status; \
- \
- asm volatile( \
- "1: mov %4,(_AAR,%3) \n" \
- " mov (_ADR,%3),%1 \n" \
- " mov %1,%0 \n" \
- " " #op " %5,%0 \n" \
- " mov %0,(_ADR,%3) \n" \
- " mov (_ADR,%3),%0 \n" /* flush */ \
- " mov (_ASR,%3),%0 \n" \
- " or %0,%0 \n" \
- " bne 1b \n" \
- : "=&r"(status), "=&r"(retval), "=m"(v->counter) \
- : "a"(ATOMIC_OPS_BASE_ADDR), "r"(&v->counter), "r"(i) \
- : "memory", "cc"); \
- return retval; \
-}
-
-#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op) ATOMIC_FETCH_OP(op)
-
-ATOMIC_OPS(add)
-ATOMIC_OPS(sub)
-
-#undef ATOMIC_OPS
-#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_FETCH_OP(op)
-
-ATOMIC_OPS(and)
-ATOMIC_OPS(or)
-ATOMIC_OPS(xor)
-
-#undef ATOMIC_OPS
-#undef ATOMIC_FETCH_OP
-#undef ATOMIC_OP_RETURN
-#undef ATOMIC_OP
-
-static inline int atomic_add_negative(int i, atomic_t *v)
-{
- return atomic_add_return(i, v) < 0;
-}
-
-static inline void atomic_inc(atomic_t *v)
-{
- atomic_add_return(1, v);
-}
-
-static inline void atomic_dec(atomic_t *v)
-{
- atomic_sub_return(1, v);
-}
-
-#define atomic_dec_return(v) atomic_sub_return(1, (v))
-#define atomic_inc_return(v) atomic_add_return(1, (v))
-
-#define atomic_sub_and_test(i, v) (atomic_sub_return((i), (v)) == 0)
-#define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0)
-#define atomic_inc_and_test(v) (atomic_add_return(1, (v)) == 0)
-
-#define __atomic_add_unless(v, a, u) \
-({ \
- int c, old; \
- c = atomic_read(v); \
- while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \
- c = old; \
- c; \
-})
-
-#define atomic_xchg(ptr, v) (xchg(&(ptr)->counter, (v)))
-#define atomic_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), (old), (new)))
-
-#endif /* __KERNEL__ */
-#endif /* CONFIG_SMP */
-#endif /* _ASM_ATOMIC_H */
+++ /dev/null
-/* MN10300 bit operations
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- *
- * These have to be done with inline assembly: that way the bit-setting
- * is guaranteed to be atomic. All bit operations return 0 if the bit
- * was cleared before the operation and != 0 if it was not.
- *
- * bit 0 is the LSB of addr; bit 32 is the LSB of (addr+1).
- */
-#ifndef __ASM_BITOPS_H
-#define __ASM_BITOPS_H
-
-#include <asm/cpu-regs.h>
-#include <asm/barrier.h>
-
-/*
- * set bit
- */
-#define __set_bit(nr, addr) \
-({ \
- volatile unsigned char *_a = (unsigned char *)(addr); \
- const unsigned shift = (nr) & 7; \
- _a += (nr) >> 3; \
- \
- asm volatile("bset %2,(%1) # set_bit reg" \
- : "=m"(*_a) \
- : "a"(_a), "d"(1 << shift), "m"(*_a) \
- : "memory", "cc"); \
-})
-
-#define set_bit(nr, addr) __set_bit((nr), (addr))
-
-/*
- * clear bit
- */
-#define ___clear_bit(nr, addr) \
-({ \
- volatile unsigned char *_a = (unsigned char *)(addr); \
- const unsigned shift = (nr) & 7; \
- _a += (nr) >> 3; \
- \
- asm volatile("bclr %2,(%1) # clear_bit reg" \
- : "=m"(*_a) \
- : "a"(_a), "d"(1 << shift), "m"(*_a) \
- : "memory", "cc"); \
-})
-
-#define clear_bit(nr, addr) ___clear_bit((nr), (addr))
-
-
-static inline void __clear_bit(unsigned long nr, volatile void *addr)
-{
- unsigned int *a = (unsigned int *) addr;
- int mask;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- *a &= ~mask;
-}
-
-/*
- * test bit
- */
-static inline int test_bit(unsigned long nr, const volatile void *addr)
-{
- return 1UL & (((const volatile unsigned int *) addr)[nr >> 5] >> (nr & 31));
-}
-
-/*
- * change bit
- */
-static inline void __change_bit(unsigned long nr, volatile void *addr)
-{
- int mask;
- unsigned int *a = (unsigned int *) addr;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- *a ^= mask;
-}
-
-extern void change_bit(unsigned long nr, volatile void *addr);
-
-/*
- * test and set bit
- */
-#define __test_and_set_bit(nr,addr) \
-({ \
- volatile unsigned char *_a = (unsigned char *)(addr); \
- const unsigned shift = (nr) & 7; \
- unsigned epsw; \
- _a += (nr) >> 3; \
- \
- asm volatile("bset %3,(%2) # test_set_bit reg\n" \
- "mov epsw,%1" \
- : "=m"(*_a), "=d"(epsw) \
- : "a"(_a), "d"(1 << shift), "m"(*_a) \
- : "memory", "cc"); \
- \
- !(epsw & EPSW_FLAG_Z); \
-})
-
-#define test_and_set_bit(nr, addr) __test_and_set_bit((nr), (addr))
-
-/*
- * test and clear bit
- */
-#define __test_and_clear_bit(nr, addr) \
-({ \
- volatile unsigned char *_a = (unsigned char *)(addr); \
- const unsigned shift = (nr) & 7; \
- unsigned epsw; \
- _a += (nr) >> 3; \
- \
- asm volatile("bclr %3,(%2) # test_clear_bit reg\n" \
- "mov epsw,%1" \
- : "=m"(*_a), "=d"(epsw) \
- : "a"(_a), "d"(1 << shift), "m"(*_a) \
- : "memory", "cc"); \
- \
- !(epsw & EPSW_FLAG_Z); \
-})
-
-#define test_and_clear_bit(nr, addr) __test_and_clear_bit((nr), (addr))
-
-/*
- * test and change bit
- */
-static inline int __test_and_change_bit(unsigned long nr, volatile void *addr)
-{
- int mask, retval;
- unsigned int *a = (unsigned int *)addr;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- retval = (mask & *a) != 0;
- *a ^= mask;
-
- return retval;
-}
-
-extern int test_and_change_bit(unsigned long nr, volatile void *addr);
-
-#include <asm-generic/bitops/lock.h>
-
-#ifdef __KERNEL__
-
-/**
- * __ffs - find first bit set
- * @x: the word to search
- *
- * - return 31..0 to indicate bit 31..0 most least significant bit set
- * - if no bits are set in x, the result is undefined
- */
-static inline __attribute__((const))
-unsigned long __ffs(unsigned long x)
-{
- int bit;
- asm("bsch %2,%0" : "=r"(bit) : "0"(0), "r"(x & -x) : "cc");
- return bit;
-}
-
-/*
- * special slimline version of fls() for calculating ilog2_u32()
- * - note: no protection against n == 0
- */
-static inline __attribute__((const))
-int __ilog2_u32(u32 n)
-{
- int bit;
- asm("bsch %2,%0" : "=r"(bit) : "0"(0), "r"(n) : "cc");
- return bit;
-}
-
-/**
- * fls - find last bit set
- * @x: the word to search
- *
- * This is defined the same way as ffs:
- * - return 32..1 to indicate bit 31..0 most significant bit set
- * - return 0 to indicate no bits set
- */
-static inline __attribute__((const))
-int fls(int x)
-{
- return (x != 0) ? __ilog2_u32(x) + 1 : 0;
-}
-
-/**
- * __fls - find last (most-significant) set bit in a long word
- * @word: the word to search
- *
- * Undefined if no set bit exists, so code should check against 0 first.
- */
-static inline unsigned long __fls(unsigned long word)
-{
- return __ilog2_u32(word);
-}
-
-/**
- * ffs - find first bit set
- * @x: the word to search
- *
- * - return 32..1 to indicate bit 31..0 most least significant bit set
- * - return 0 to indicate no bits set
- */
-static inline __attribute__((const))
-int ffs(int x)
-{
- /* Note: (x & -x) gives us a mask that is the least significant
- * (rightmost) 1-bit of the value in x.
- */
- return fls(x & -x);
-}
-
-#include <asm-generic/bitops/ffz.h>
-#include <asm-generic/bitops/fls64.h>
-#include <asm-generic/bitops/find.h>
-#include <asm-generic/bitops/sched.h>
-#include <asm-generic/bitops/hweight.h>
-#include <asm-generic/bitops/ext2-atomic-setbit.h>
-#include <asm-generic/bitops/le.h>
-
-#endif /* __KERNEL__ */
-#endif /* __ASM_BITOPS_H */
+++ /dev/null
-/* MN10300 Kernel bug reporting
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_BUG_H
-#define _ASM_BUG_H
-
-#ifdef CONFIG_BUG
-
-/*
- * Tell the user there is some problem.
- */
-#define BUG() \
-do { \
- asm volatile( \
- " syscall 15 \n" \
- "0: \n" \
- " .section __bug_table,\"aw\" \n" \
- " .long 0b,%0,%1 \n" \
- " .previous \n" \
- : \
- : "i"(__FILE__), "i"(__LINE__) \
- ); \
-} while (1)
-
-#define HAVE_ARCH_BUG
-#endif /* CONFIG_BUG */
-
-#include <asm-generic/bug.h>
-
-#endif /* _ASM_BUG_H */
+++ /dev/null
-/* MN10300 Checks for architecture-dependent bugs
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_BUGS_H
-#define _ASM_BUGS_H
-
-#include <asm/processor.h>
-
-static inline void __init check_bugs(void)
-{
-}
-
-#endif /* _ASM_BUGS_H */
+++ /dev/null
-/* AM33v2 on-board bus controller registers
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_BUSCTL_REGS_H
-#define _ASM_BUSCTL_REGS_H
-
-#include <asm/cpu-regs.h>
-
-#ifdef __KERNEL__
-
-/* bus controller registers */
-#define BCCR __SYSREG(0xc0002000, u32) /* bus controller control reg */
-#define BCCR_B0AD 0x00000003 /* block 0 (80000000-83ffffff) bus allocation */
-#define BCCR_B1AD 0x0000000c /* block 1 (84000000-87ffffff) bus allocation */
-#define BCCR_B2AD 0x00000030 /* block 2 (88000000-8bffffff) bus allocation */
-#define BCCR_B3AD 0x000000c0 /* block 3 (8c000000-8fffffff) bus allocation */
-#define BCCR_B4AD 0x00000300 /* block 4 (90000000-93ffffff) bus allocation */
-#define BCCR_B5AD 0x00000c00 /* block 5 (94000000-97ffffff) bus allocation */
-#define BCCR_B6AD 0x00003000 /* block 6 (98000000-9bffffff) bus allocation */
-#define BCCR_B7AD 0x0000c000 /* block 7 (9c000000-9fffffff) bus allocation */
-#define BCCR_BxAD_EXBUS 0x0 /* - direct to system bus controller */
-#define BCCR_BxAD_OPEXBUS 0x1 /* - direct to memory bus controller */
-#define BCCR_BxAD_OCMBUS 0x2 /* - direct to on chip memory */
-#define BCCR_API 0x00070000 /* bus arbitration priority */
-#define BCCR_API_DMACICD 0x00000000 /* - DMA > CI > CD */
-#define BCCR_API_DMACDCI 0x00010000 /* - DMA > CD > CI */
-#define BCCR_API_CICDDMA 0x00020000 /* - CI > CD > DMA */
-#define BCCR_API_CDCIDMA 0x00030000 /* - CD > CI > DMA */
-#define BCCR_API_ROUNDROBIN 0x00040000 /* - round robin */
-#define BCCR_BEPRI_DMACICD 0x00c00000 /* bus error address priority */
-#define BCCR_BEPRI_DMACDCI 0x00000000 /* - DMA > CI > CD */
-#define BCCR_BEPRI_CICDDMA 0x00400000 /* - DMA > CD > CI */
-#define BCCR_BEPRI_CDCIDMA 0x00800000 /* - CI > CD > DMA */
-#define BCCR_BEPRI 0x00c00000 /* - CD > CI > DMA */
-#define BCCR_TMON 0x03000000 /* timeout value settings */
-#define BCCR_TMON_16IOCLK 0x00000000 /* - 16 IOCLK cycles */
-#define BCCR_TMON_256IOCLK 0x01000000 /* - 256 IOCLK cycles */
-#define BCCR_TMON_4096IOCLK 0x02000000 /* - 4096 IOCLK cycles */
-#define BCCR_TMON_65536IOCLK 0x03000000 /* - 65536 IOCLK cycles */
-#define BCCR_TMOE 0x10000000 /* timeout detection enable */
-
-#define BCBERR __SYSREG(0xc0002010, u32) /* bus error source reg */
-#define BCBERR_BESB 0x0000001f /* erroneous access destination space */
-#define BCBERR_BESB_MON 0x00000001 /* - monitor space */
-#define BCBERR_BESB_IO 0x00000002 /* - IO bus */
-#define BCBERR_BESB_EX 0x00000004 /* - EX bus */
-#define BCBERR_BESB_OPEX 0x00000008 /* - OpEX bus */
-#define BCBERR_BESB_OCM 0x00000010 /* - on chip memory */
-#define BCBERR_BERW 0x00000100 /* type of access */
-#define BCBERR_BERW_WRITE 0x00000000 /* - write */
-#define BCBERR_BERW_READ 0x00000100 /* - read */
-#define BCBERR_BESD 0x00000200 /* error detector */
-#define BCBERR_BESD_BCU 0x00000000 /* - BCU detected error */
-#define BCBERR_BESD_SLAVE_BUS 0x00000200 /* - slave bus detected error */
-#define BCBERR_BEBST 0x00000400 /* type of access */
-#define BCBERR_BEBST_SINGLE 0x00000000 /* - single */
-#define BCBERR_BEBST_BURST 0x00000400 /* - burst */
-#define BCBERR_BEME 0x00000800 /* multiple bus error flag */
-#define BCBERR_BEMR 0x00007000 /* master bus that caused the error */
-#define BCBERR_BEMR_NOERROR 0x00000000 /* - no error */
-#define BCBERR_BEMR_CI 0x00001000 /* - CPU instruction fetch bus caused error */
-#define BCBERR_BEMR_CD 0x00002000 /* - CPU data bus caused error */
-#define BCBERR_BEMR_DMA 0x00004000 /* - DMA bus caused error */
-
-#define BCBEAR __SYSREGC(0xc0002020, u32) /* bus error address reg */
-
-/* system bus controller registers */
-#define SBBASE(X) __SYSREG(0xd8c00100 + (X) * 0x10, u32) /* SBC base addr regs */
-#define SBBASE_BE 0x00000001 /* bank enable */
-#define SBBASE_BAM 0x0000fffe /* bank address mask [31:17] */
-#define SBBASE_BBA 0xfffe0000 /* bank base address [31:17] */
-
-#define SBCNTRL0(X) __SYSREG(0xd8c00200 + (X) * 0x10, u32) /* SBC bank ctrl0 regs */
-#define SBCNTRL0_WEH 0x00000f00 /* write enable hold */
-#define SBCNTRL0_REH 0x0000f000 /* read enable hold */
-#define SBCNTRL0_RWH 0x000f0000 /* SRW signal hold */
-#define SBCNTRL0_CSH 0x00f00000 /* chip select hold */
-#define SBCNTRL0_DAH 0x0f000000 /* data hold */
-#define SBCNTRL0_ADH 0xf0000000 /* address hold */
-
-#define SBCNTRL1(X) __SYSREG(0xd8c00204 + (X) * 0x10, u32) /* SBC bank ctrl1 regs */
-#define SBCNTRL1_WED 0x00000f00 /* write enable delay */
-#define SBCNTRL1_RED 0x0000f000 /* read enable delay */
-#define SBCNTRL1_RWD 0x000f0000 /* SRW signal delay */
-#define SBCNTRL1_ASW 0x00f00000 /* address strobe width */
-#define SBCNTRL1_CSD 0x0f000000 /* chip select delay */
-#define SBCNTRL1_ASD 0xf0000000 /* address strobe delay */
-
-#define SBCNTRL2(X) __SYSREG(0xd8c00208 + (X) * 0x10, u32) /* SBC bank ctrl2 regs */
-#define SBCNTRL2_WC 0x000000ff /* wait count */
-#define SBCNTRL2_BWC 0x00000f00 /* burst wait count */
-#define SBCNTRL2_WM 0x01000000 /* wait mode setting */
-#define SBCNTRL2_WM_FIXEDWAIT 0x00000000 /* - fixed wait access */
-#define SBCNTRL2_WM_HANDSHAKE 0x01000000 /* - handshake access */
-#define SBCNTRL2_BM 0x02000000 /* bus synchronisation mode */
-#define SBCNTRL2_BM_SYNC 0x00000000 /* - synchronous mode */
-#define SBCNTRL2_BM_ASYNC 0x02000000 /* - asynchronous mode */
-#define SBCNTRL2_BW 0x04000000 /* bus width */
-#define SBCNTRL2_BW_32 0x00000000 /* - 32 bits */
-#define SBCNTRL2_BW_16 0x04000000 /* - 16 bits */
-#define SBCNTRL2_RWINV 0x08000000 /* R/W signal invert polarity */
-#define SBCNTRL2_RWINV_NORM 0x00000000 /* - normal (read high) */
-#define SBCNTRL2_RWINV_INV 0x08000000 /* - inverted (read low) */
-#define SBCNTRL2_BT 0x70000000 /* bus type setting */
-#define SBCNTRL2_BT_SRAM 0x00000000 /* - SRAM interface */
-#define SBCNTRL2_BT_ADMUX 0x00000000 /* - addr/data multiplexed interface */
-#define SBCNTRL2_BT_BROM 0x00000000 /* - burst ROM interface */
-#define SBCNTRL2_BTSE 0x80000000 /* burst enable */
-
-/* memory bus controller */
-#define SDBASE(X) __SYSREG(0xda000008 + (X) * 0x4, u32) /* MBC base addr regs */
-#define SDBASE_CE 0x00000001 /* chip enable */
-#define SDBASE_CBAM 0x0000fff0 /* chip base address mask [31:20] */
-#define SDBASE_CBAM_SHIFT 16
-#define SDBASE_CBA 0xfff00000 /* chip base address [31:20] */
-
-#define SDRAMBUS __SYSREG(0xda000000, u32) /* bus mode control reg */
-#define SDRAMBUS_REFEN 0x00000004 /* refresh enable */
-#define SDRAMBUS_TRC 0x00000018 /* refresh command delay time */
-#define SDRAMBUS_BSTPT 0x00000020 /* burst stop command enable */
-#define SDRAMBUS_PONSEQ 0x00000040 /* power on sequence */
-#define SDRAMBUS_SELFREQ 0x00000080 /* self-refresh mode request */
-#define SDRAMBUS_SELFON 0x00000100 /* self-refresh mode on */
-#define SDRAMBUS_SIZE 0x00030000 /* SDRAM size */
-#define SDRAMBUS_SIZE_64Mbit 0x00010000 /* 64Mbit SDRAM (x16) */
-#define SDRAMBUS_SIZE_128Mbit 0x00020000 /* 128Mbit SDRAM (x16) */
-#define SDRAMBUS_SIZE_256Mbit 0x00030000 /* 256Mbit SDRAM (x16) */
-#define SDRAMBUS_TRASWAIT 0x000c0000 /* row address precharge command cycle number */
-#define SDRAMBUS_REFNUM 0x00300000 /* refresh command number */
-#define SDRAMBUS_BSTWAIT 0x00c00000 /* burst stop command cycle */
-#define SDRAMBUS_SETWAIT 0x03000000 /* mode register setting command cycle */
-#define SDRAMBUS_PREWAIT 0x0c000000 /* precharge command cycle */
-#define SDRAMBUS_RASLATE 0x30000000 /* RAS latency */
-#define SDRAMBUS_CASLATE 0xc0000000 /* CAS latency */
-
-#define SDREFCNT __SYSREG(0xda000004, u32) /* refresh period reg */
-#define SDREFCNT_PERI 0x00000fff /* refresh period */
-
-#define SDSHDW __SYSREG(0xda000010, u32) /* test reg */
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_BUSCTL_REGS_H */
+++ /dev/null
-/* MN10300 cache management registers
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_CACHE_H
-#define _ASM_CACHE_H
-
-#include <asm/cpu-regs.h>
-#include <proc/cache.h>
-
-#ifndef __ASSEMBLY__
-#define L1_CACHE_DISPARITY (L1_CACHE_NENTRIES * L1_CACHE_BYTES)
-#else
-#define L1_CACHE_DISPARITY L1_CACHE_NENTRIES * L1_CACHE_BYTES
-#endif
-
-#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
-
-/* data cache purge registers
- * - read from the register to unconditionally purge that cache line
- * - write address & 0xffffff00 to conditionally purge that cache line
- * - clear LSB to request invalidation as well
- */
-#define DCACHE_PURGE(WAY, ENTRY) \
- __SYSREG(0xc8400000 + (WAY) * L1_CACHE_WAYDISP + \
- (ENTRY) * L1_CACHE_BYTES, u32)
-
-#define DCACHE_PURGE_WAY0(ENTRY) \
- __SYSREG(0xc8400000 + 0 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
-#define DCACHE_PURGE_WAY1(ENTRY) \
- __SYSREG(0xc8400000 + 1 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
-#define DCACHE_PURGE_WAY2(ENTRY) \
- __SYSREG(0xc8400000 + 2 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
-#define DCACHE_PURGE_WAY3(ENTRY) \
- __SYSREG(0xc8400000 + 3 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
-
-/* instruction cache access registers */
-#define ICACHE_DATA(WAY, ENTRY, OFF) \
- __SYSREG(0xc8000000 + (WAY) * L1_CACHE_WAYDISP + \
- (ENTRY) * L1_CACHE_BYTES + (OFF) * 4, u32)
-#define ICACHE_TAG(WAY, ENTRY) \
- __SYSREG(0xc8100000 + (WAY) * L1_CACHE_WAYDISP + \
- (ENTRY) * L1_CACHE_BYTES, u32)
-
-/* data cache access registers */
-#define DCACHE_DATA(WAY, ENTRY, OFF) \
- __SYSREG(0xc8200000 + (WAY) * L1_CACHE_WAYDISP + \
- (ENTRY) * L1_CACHE_BYTES + (OFF) * 4, u32)
-#define DCACHE_TAG(WAY, ENTRY) \
- __SYSREG(0xc8300000 + (WAY) * L1_CACHE_WAYDISP + \
- (ENTRY) * L1_CACHE_BYTES, u32)
-
-#endif /* _ASM_CACHE_H */
+++ /dev/null
-/* MN10300 Cache flushing
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_CACHEFLUSH_H
-#define _ASM_CACHEFLUSH_H
-
-#ifndef __ASSEMBLY__
-
-/* Keep includes the same across arches. */
-#include <linux/mm.h>
-
-/*
- * Primitive routines
- */
-#ifdef CONFIG_MN10300_CACHE_ENABLED
-extern void mn10300_local_icache_inv(void);
-extern void mn10300_local_icache_inv_page(unsigned long start);
-extern void mn10300_local_icache_inv_range(unsigned long start, unsigned long end);
-extern void mn10300_local_icache_inv_range2(unsigned long start, unsigned long size);
-extern void mn10300_local_dcache_inv(void);
-extern void mn10300_local_dcache_inv_page(unsigned long start);
-extern void mn10300_local_dcache_inv_range(unsigned long start, unsigned long end);
-extern void mn10300_local_dcache_inv_range2(unsigned long start, unsigned long size);
-extern void mn10300_icache_inv(void);
-extern void mn10300_icache_inv_page(unsigned long start);
-extern void mn10300_icache_inv_range(unsigned long start, unsigned long end);
-extern void mn10300_icache_inv_range2(unsigned long start, unsigned long size);
-extern void mn10300_dcache_inv(void);
-extern void mn10300_dcache_inv_page(unsigned long start);
-extern void mn10300_dcache_inv_range(unsigned long start, unsigned long end);
-extern void mn10300_dcache_inv_range2(unsigned long start, unsigned long size);
-#ifdef CONFIG_MN10300_CACHE_WBACK
-extern void mn10300_local_dcache_flush(void);
-extern void mn10300_local_dcache_flush_page(unsigned long start);
-extern void mn10300_local_dcache_flush_range(unsigned long start, unsigned long end);
-extern void mn10300_local_dcache_flush_range2(unsigned long start, unsigned long size);
-extern void mn10300_local_dcache_flush_inv(void);
-extern void mn10300_local_dcache_flush_inv_page(unsigned long start);
-extern void mn10300_local_dcache_flush_inv_range(unsigned long start, unsigned long end);
-extern void mn10300_local_dcache_flush_inv_range2(unsigned long start, unsigned long size);
-extern void mn10300_dcache_flush(void);
-extern void mn10300_dcache_flush_page(unsigned long start);
-extern void mn10300_dcache_flush_range(unsigned long start, unsigned long end);
-extern void mn10300_dcache_flush_range2(unsigned long start, unsigned long size);
-extern void mn10300_dcache_flush_inv(void);
-extern void mn10300_dcache_flush_inv_page(unsigned long start);
-extern void mn10300_dcache_flush_inv_range(unsigned long start, unsigned long end);
-extern void mn10300_dcache_flush_inv_range2(unsigned long start, unsigned long size);
-#else
-#define mn10300_local_dcache_flush() do {} while (0)
-#define mn10300_local_dcache_flush_page(start) do {} while (0)
-#define mn10300_local_dcache_flush_range(start, end) do {} while (0)
-#define mn10300_local_dcache_flush_range2(start, size) do {} while (0)
-#define mn10300_local_dcache_flush_inv() \
- mn10300_local_dcache_inv()
-#define mn10300_local_dcache_flush_inv_page(start) \
- mn10300_local_dcache_inv_page(start)
-#define mn10300_local_dcache_flush_inv_range(start, end) \
- mn10300_local_dcache_inv_range(start, end)
-#define mn10300_local_dcache_flush_inv_range2(start, size) \
- mn10300_local_dcache_inv_range2(start, size)
-#define mn10300_dcache_flush() do {} while (0)
-#define mn10300_dcache_flush_page(start) do {} while (0)
-#define mn10300_dcache_flush_range(start, end) do {} while (0)
-#define mn10300_dcache_flush_range2(start, size) do {} while (0)
-#define mn10300_dcache_flush_inv() mn10300_dcache_inv()
-#define mn10300_dcache_flush_inv_page(start) \
- mn10300_dcache_inv_page((start))
-#define mn10300_dcache_flush_inv_range(start, end) \
- mn10300_dcache_inv_range((start), (end))
-#define mn10300_dcache_flush_inv_range2(start, size) \
- mn10300_dcache_inv_range2((start), (size))
-#endif /* CONFIG_MN10300_CACHE_WBACK */
-#else
-#define mn10300_local_icache_inv() do {} while (0)
-#define mn10300_local_icache_inv_page(start) do {} while (0)
-#define mn10300_local_icache_inv_range(start, end) do {} while (0)
-#define mn10300_local_icache_inv_range2(start, size) do {} while (0)
-#define mn10300_local_dcache_inv() do {} while (0)
-#define mn10300_local_dcache_inv_page(start) do {} while (0)
-#define mn10300_local_dcache_inv_range(start, end) do {} while (0)
-#define mn10300_local_dcache_inv_range2(start, size) do {} while (0)
-#define mn10300_local_dcache_flush() do {} while (0)
-#define mn10300_local_dcache_flush_inv_page(start) do {} while (0)
-#define mn10300_local_dcache_flush_inv() do {} while (0)
-#define mn10300_local_dcache_flush_inv_range(start, end)do {} while (0)
-#define mn10300_local_dcache_flush_inv_range2(start, size) do {} while (0)
-#define mn10300_local_dcache_flush_page(start) do {} while (0)
-#define mn10300_local_dcache_flush_range(start, end) do {} while (0)
-#define mn10300_local_dcache_flush_range2(start, size) do {} while (0)
-#define mn10300_icache_inv() do {} while (0)
-#define mn10300_icache_inv_page(start) do {} while (0)
-#define mn10300_icache_inv_range(start, end) do {} while (0)
-#define mn10300_icache_inv_range2(start, size) do {} while (0)
-#define mn10300_dcache_inv() do {} while (0)
-#define mn10300_dcache_inv_page(start) do {} while (0)
-#define mn10300_dcache_inv_range(start, end) do {} while (0)
-#define mn10300_dcache_inv_range2(start, size) do {} while (0)
-#define mn10300_dcache_flush() do {} while (0)
-#define mn10300_dcache_flush_inv_page(start) do {} while (0)
-#define mn10300_dcache_flush_inv() do {} while (0)
-#define mn10300_dcache_flush_inv_range(start, end) do {} while (0)
-#define mn10300_dcache_flush_inv_range2(start, size) do {} while (0)
-#define mn10300_dcache_flush_page(start) do {} while (0)
-#define mn10300_dcache_flush_range(start, end) do {} while (0)
-#define mn10300_dcache_flush_range2(start, size) do {} while (0)
-#endif /* CONFIG_MN10300_CACHE_ENABLED */
-
-/*
- * Virtually-indexed cache management (our cache is physically indexed)
- */
-#define flush_cache_all() do {} while (0)
-#define flush_cache_mm(mm) do {} while (0)
-#define flush_cache_dup_mm(mm) do {} while (0)
-#define flush_cache_range(mm, start, end) do {} while (0)
-#define flush_cache_page(vma, vmaddr, pfn) do {} while (0)
-#define flush_cache_vmap(start, end) do {} while (0)
-#define flush_cache_vunmap(start, end) do {} while (0)
-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
-#define flush_dcache_page(page) do {} while (0)
-#define flush_dcache_mmap_lock(mapping) do {} while (0)
-#define flush_dcache_mmap_unlock(mapping) do {} while (0)
-
-/*
- * Physically-indexed cache management
- */
-#if defined(CONFIG_MN10300_CACHE_FLUSH_ICACHE)
-extern void flush_icache_page(struct vm_area_struct *vma, struct page *page);
-extern void flush_icache_range(unsigned long start, unsigned long end);
-#elif defined(CONFIG_MN10300_CACHE_INV_ICACHE)
-static inline void flush_icache_page(struct vm_area_struct *vma,
- struct page *page)
-{
- mn10300_icache_inv_page(page_to_phys(page));
-}
-extern void flush_icache_range(unsigned long start, unsigned long end);
-#else
-#define flush_icache_range(start, end) do {} while (0)
-#define flush_icache_page(vma, pg) do {} while (0)
-#endif
-
-
-#define flush_icache_user_range(vma, pg, adr, len) \
- flush_icache_range(adr, adr + len)
-
-#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
- do { \
- memcpy(dst, src, len); \
- flush_icache_page(vma, page); \
- } while (0)
-
-#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
- memcpy(dst, src, len)
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _ASM_CACHEFLUSH_H */
+++ /dev/null
-/* MN10300 Optimised checksumming code
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_CHECKSUM_H
-#define _ASM_CHECKSUM_H
-
-extern __wsum csum_partial(const void *buff, int len, __wsum sum);
-extern __wsum csum_partial_copy_nocheck(const void *src, void *dst,
- int len, __wsum sum);
-extern __wsum csum_partial_copy_from_user(const void *src, void *dst,
- int len, __wsum sum,
- int *err_ptr);
-extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl);
-extern __wsum csum_partial(const void *buff, int len, __wsum sum);
-extern __sum16 ip_compute_csum(const void *buff, int len);
-
-#define csum_partial_copy_fromuser csum_partial_copy
-extern __wsum csum_partial_copy(const void *src, void *dst, int len,
- __wsum sum);
-
-static inline __sum16 csum_fold(__wsum sum)
-{
- asm(
- " add %1,%0 \n"
- " addc 0xffff,%0 \n"
- : "=r" (sum)
- : "r" (sum << 16), "0" (sum & 0xffff0000)
- : "cc"
- );
- return (~sum) >> 16;
-}
-
-static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
- __u32 len, __u8 proto,
- __wsum sum)
-{
- __wsum tmp = (__wsum)((len + proto) << 8);
-
- asm(
- " add %1,%0 \n"
- " addc %2,%0 \n"
- " addc %3,%0 \n"
- " addc 0,%0 \n"
- : "=r" (sum)
- : "r" (daddr), "r"(saddr), "r"(tmp), "0"(sum)
- : "cc"
- );
- return sum;
-}
-
-/*
- * computes the checksum of the TCP/UDP pseudo-header
- * returns a 16-bit checksum, already complemented
- */
-static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
- __u32 len, __u8 proto,
- __wsum sum)
-{
- return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
-}
-
-#undef _HAVE_ARCH_IPV6_CSUM
-
-/*
- * Copy and checksum to user
- */
-#define HAVE_CSUM_COPY_USER
-extern __wsum csum_and_copy_to_user(const void *src, void *dst, int len,
- __wsum sum, int *err_ptr);
-
-
-#endif /* _ASM_CHECKSUM_H */
+++ /dev/null
-/* MN10300 Atomic xchg/cmpxchg operations
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_CMPXCHG_H
-#define _ASM_CMPXCHG_H
-
-#include <asm/irqflags.h>
-
-#ifdef CONFIG_SMP
-#ifdef CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
-static inline
-unsigned long __xchg(volatile unsigned long *m, unsigned long val)
-{
- unsigned long status;
- unsigned long oldval;
-
- asm volatile(
- "1: mov %4,(_AAR,%3) \n"
- " mov (_ADR,%3),%1 \n"
- " mov %5,(_ADR,%3) \n"
- " mov (_ADR,%3),%0 \n" /* flush */
- " mov (_ASR,%3),%0 \n"
- " or %0,%0 \n"
- " bne 1b \n"
- : "=&r"(status), "=&r"(oldval), "=m"(*m)
- : "a"(ATOMIC_OPS_BASE_ADDR), "r"(m), "r"(val)
- : "memory", "cc");
-
- return oldval;
-}
-
-static inline unsigned long __cmpxchg(volatile unsigned long *m,
- unsigned long old, unsigned long new)
-{
- unsigned long status;
- unsigned long oldval;
-
- asm volatile(
- "1: mov %4,(_AAR,%3) \n"
- " mov (_ADR,%3),%1 \n"
- " cmp %5,%1 \n"
- " bne 2f \n"
- " mov %6,(_ADR,%3) \n"
- "2: mov (_ADR,%3),%0 \n" /* flush */
- " mov (_ASR,%3),%0 \n"
- " or %0,%0 \n"
- " bne 1b \n"
- : "=&r"(status), "=&r"(oldval), "=m"(*m)
- : "a"(ATOMIC_OPS_BASE_ADDR), "r"(m),
- "r"(old), "r"(new)
- : "memory", "cc");
-
- return oldval;
-}
-#else /* CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT */
-#error "No SMP atomic operation support!"
-#endif /* CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT */
-
-#else /* CONFIG_SMP */
-
-/*
- * Emulate xchg for non-SMP MN10300
- */
-struct __xchg_dummy { unsigned long a[100]; };
-#define __xg(x) ((struct __xchg_dummy *)(x))
-
-static inline
-unsigned long __xchg(volatile unsigned long *m, unsigned long val)
-{
- unsigned long oldval;
- unsigned long flags;
-
- flags = arch_local_cli_save();
- oldval = *m;
- *m = val;
- arch_local_irq_restore(flags);
- return oldval;
-}
-
-/*
- * Emulate cmpxchg for non-SMP MN10300
- */
-static inline unsigned long __cmpxchg(volatile unsigned long *m,
- unsigned long old, unsigned long new)
-{
- unsigned long oldval;
- unsigned long flags;
-
- flags = arch_local_cli_save();
- oldval = *m;
- if (oldval == old)
- *m = new;
- arch_local_irq_restore(flags);
- return oldval;
-}
-
-#endif /* CONFIG_SMP */
-
-#define xchg(ptr, v) \
- ((__typeof__(*(ptr))) __xchg((unsigned long *)(ptr), \
- (unsigned long)(v)))
-
-#define cmpxchg(ptr, o, n) \
- ((__typeof__(*(ptr))) __cmpxchg((unsigned long *)(ptr), \
- (unsigned long)(o), \
- (unsigned long)(n)))
-
-#endif /* _ASM_CMPXCHG_H */
+++ /dev/null
-/* MN10300 Core system registers
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_CPU_REGS_H
-#define _ASM_CPU_REGS_H
-
-#ifndef __ASSEMBLY__
-#include <linux/types.h>
-#endif
-
-/* we tell the compiler to pretend to be AM33 so that it doesn't try and use
- * the FP regs, but tell the assembler that we're actually allowed AM33v2
- * instructions */
-#ifndef __ASSEMBLY__
-asm(" .am33_2\n");
-#else
-.am33_2
-#endif
-
-#ifdef __KERNEL__
-
-#ifndef __ASSEMBLY__
-#define __SYSREG(ADDR, TYPE) (*(volatile TYPE *)(ADDR))
-#define __SYSREGC(ADDR, TYPE) (*(const volatile TYPE *)(ADDR))
-#else
-#define __SYSREG(ADDR, TYPE) ADDR
-#define __SYSREGC(ADDR, TYPE) ADDR
-#endif
-
-/* CPU registers */
-#define EPSW_FLAG_Z 0x00000001 /* zero flag */
-#define EPSW_FLAG_N 0x00000002 /* negative flag */
-#define EPSW_FLAG_C 0x00000004 /* carry flag */
-#define EPSW_FLAG_V 0x00000008 /* overflow flag */
-#define EPSW_IM 0x00000700 /* interrupt mode */
-#define EPSW_IM_0 0x00000000 /* interrupt mode 0 */
-#define EPSW_IM_1 0x00000100 /* interrupt mode 1 */
-#define EPSW_IM_2 0x00000200 /* interrupt mode 2 */
-#define EPSW_IM_3 0x00000300 /* interrupt mode 3 */
-#define EPSW_IM_4 0x00000400 /* interrupt mode 4 */
-#define EPSW_IM_5 0x00000500 /* interrupt mode 5 */
-#define EPSW_IM_6 0x00000600 /* interrupt mode 6 */
-#define EPSW_IM_7 0x00000700 /* interrupt mode 7 */
-#define EPSW_IE 0x00000800 /* interrupt enable */
-#define EPSW_S 0x00003000 /* software auxiliary bits */
-#define EPSW_T 0x00008000 /* trace enable */
-#define EPSW_nSL 0x00010000 /* not supervisor level */
-#define EPSW_NMID 0x00020000 /* nonmaskable interrupt disable */
-#define EPSW_nAR 0x00040000 /* register bank control */
-#define EPSW_ML 0x00080000 /* monitor level */
-#define EPSW_FE 0x00100000 /* FPU enable */
-#define EPSW_IM_SHIFT 8 /* EPSW_IM_SHIFT determines the interrupt mode */
-
-#define NUM2EPSW_IM(num) ((num) << EPSW_IM_SHIFT)
-
-/* FPU registers */
-#define FPCR_EF_I 0x00000001 /* inexact result FPU exception flag */
-#define FPCR_EF_U 0x00000002 /* underflow FPU exception flag */
-#define FPCR_EF_O 0x00000004 /* overflow FPU exception flag */
-#define FPCR_EF_Z 0x00000008 /* zero divide FPU exception flag */
-#define FPCR_EF_V 0x00000010 /* invalid operand FPU exception flag */
-#define FPCR_EE_I 0x00000020 /* inexact result FPU exception enable */
-#define FPCR_EE_U 0x00000040 /* underflow FPU exception enable */
-#define FPCR_EE_O 0x00000080 /* overflow FPU exception enable */
-#define FPCR_EE_Z 0x00000100 /* zero divide FPU exception enable */
-#define FPCR_EE_V 0x00000200 /* invalid operand FPU exception enable */
-#define FPCR_EC_I 0x00000400 /* inexact result FPU exception cause */
-#define FPCR_EC_U 0x00000800 /* underflow FPU exception cause */
-#define FPCR_EC_O 0x00001000 /* overflow FPU exception cause */
-#define FPCR_EC_Z 0x00002000 /* zero divide FPU exception cause */
-#define FPCR_EC_V 0x00004000 /* invalid operand FPU exception cause */
-#define FPCR_RM 0x00030000 /* rounding mode */
-#define FPCR_RM_NEAREST 0x00000000 /* - round to nearest value */
-#define FPCR_FCC_U 0x00040000 /* FPU unordered condition code */
-#define FPCR_FCC_E 0x00080000 /* FPU equal condition code */
-#define FPCR_FCC_G 0x00100000 /* FPU greater than condition code */
-#define FPCR_FCC_L 0x00200000 /* FPU less than condition code */
-#define FPCR_INIT 0x00000000 /* no exceptions, rounding to nearest */
-
-/* CPU control registers */
-#define CPUP __SYSREG(0xc0000020, u16) /* CPU pipeline register */
-#define CPUP_DWBD 0x0020 /* write buffer disable flag */
-#define CPUP_IPFD 0x0040 /* instruction prefetch disable flag */
-#define CPUP_EXM 0x0080 /* exception operation mode */
-#define CPUP_EXM_AM33V1 0x0000 /* - AM33 v1 exception mode */
-#define CPUP_EXM_AM33V2 0x0080 /* - AM33 v2 exception mode */
-
-#define CPUM __SYSREG(0xc0000040, u16) /* CPU mode register */
-#define CPUM_SLEEP 0x0004 /* set to enter sleep state */
-#define CPUM_HALT 0x0008 /* set to enter halt state */
-#define CPUM_STOP 0x0010 /* set to enter stop state */
-
-#define CPUREV __SYSREGC(0xc0000050, u32) /* CPU revision register */
-#define CPUREV_TYPE 0x0000000f /* CPU type */
-#define CPUREV_TYPE_S 0
-#define CPUREV_TYPE_AM33_1 0x00000000 /* - AM33-1 core, AM33/1.00 arch */
-#define CPUREV_TYPE_AM33_2 0x00000001 /* - AM33-2 core, AM33/2.00 arch */
-#define CPUREV_TYPE_AM34_1 0x00000002 /* - AM34-1 core, AM33/2.00 arch */
-#define CPUREV_TYPE_AM33_3 0x00000003 /* - AM33-3 core, AM33/2.00 arch */
-#define CPUREV_TYPE_AM34_2 0x00000004 /* - AM34-2 core, AM33/3.00 arch */
-#define CPUREV_REVISION 0x000000f0 /* CPU revision */
-#define CPUREV_REVISION_S 4
-#define CPUREV_ICWAY 0x00000f00 /* number of instruction cache ways */
-#define CPUREV_ICWAY_S 8
-#define CPUREV_ICSIZE 0x0000f000 /* instruction cache way size */
-#define CPUREV_ICSIZE_S 12
-#define CPUREV_DCWAY 0x000f0000 /* number of data cache ways */
-#define CPUREV_DCWAY_S 16
-#define CPUREV_DCSIZE 0x00f00000 /* data cache way size */
-#define CPUREV_DCSIZE_S 20
-#define CPUREV_FPUTYPE 0x0f000000 /* FPU core type */
-#define CPUREV_FPUTYPE_NONE 0x00000000 /* - no FPU core implemented */
-#define CPUREV_OCDCTG 0xf0000000 /* on-chip debug function category */
-
-#define DCR __SYSREG(0xc0000030, u16) /* Debug control register */
-
-/* interrupt/exception control registers */
-#define IVAR0 __SYSREG(0xc0000000, u16) /* interrupt vector 0 */
-#define IVAR1 __SYSREG(0xc0000004, u16) /* interrupt vector 1 */
-#define IVAR2 __SYSREG(0xc0000008, u16) /* interrupt vector 2 */
-#define IVAR3 __SYSREG(0xc000000c, u16) /* interrupt vector 3 */
-#define IVAR4 __SYSREG(0xc0000010, u16) /* interrupt vector 4 */
-#define IVAR5 __SYSREG(0xc0000014, u16) /* interrupt vector 5 */
-#define IVAR6 __SYSREG(0xc0000018, u16) /* interrupt vector 6 */
-
-#define TBR __SYSREG(0xc0000024, u32) /* Trap table base */
-#define TBR_TB 0xff000000 /* table base address bits 31-24 */
-#define TBR_INT_CODE 0x00ffffff /* interrupt code */
-
-#define DEAR __SYSREG(0xc0000038, u32) /* Data access exception address */
-
-#define sISR __SYSREG(0xc0000044, u32) /* Supervisor interrupt status */
-#define sISR_IRQICE 0x00000001 /* ICE interrupt */
-#define sISR_ISTEP 0x00000002 /* single step interrupt */
-#define sISR_MISSA 0x00000004 /* memory access address misalignment fault */
-#define sISR_UNIMP 0x00000008 /* unimplemented instruction execution fault */
-#define sISR_PIEXE 0x00000010 /* program interrupt */
-#define sISR_MEMERR 0x00000020 /* illegal memory access fault */
-#define sISR_IBREAK 0x00000040 /* instraction break interrupt */
-#define sISR_DBSRL 0x00000080 /* debug serial interrupt */
-#define sISR_PERIDB 0x00000100 /* peripheral debug interrupt */
-#define sISR_EXUNIMP 0x00000200 /* unimplemented ex-instruction execution fault */
-#define sISR_OBREAK 0x00000400 /* operand break interrupt */
-#define sISR_PRIV 0x00000800 /* privileged instruction execution fault */
-#define sISR_BUSERR 0x00001000 /* bus error fault */
-#define sISR_DBLFT 0x00002000 /* double fault */
-#define sISR_DBG 0x00008000 /* debug reserved interrupt */
-#define sISR_ITMISS 0x00010000 /* instruction TLB miss */
-#define sISR_DTMISS 0x00020000 /* data TLB miss */
-#define sISR_ITEX 0x00040000 /* instruction TLB access exception */
-#define sISR_DTEX 0x00080000 /* data TLB access exception */
-#define sISR_ILGIA 0x00100000 /* illegal instruction access exception */
-#define sISR_ILGDA 0x00200000 /* illegal data access exception */
-#define sISR_IOIA 0x00400000 /* internal I/O space instruction access excep */
-#define sISR_PRIVA 0x00800000 /* privileged space instruction access excep */
-#define sISR_PRIDA 0x01000000 /* privileged space data access excep */
-#define sISR_DISA 0x02000000 /* data space instruction access excep */
-#define sISR_SYSC 0x04000000 /* system call instruction excep */
-#define sISR_FPUD 0x08000000 /* FPU disabled excep */
-#define sISR_FPUUI 0x10000000 /* FPU unimplemented instruction excep */
-#define sISR_FPUOP 0x20000000 /* FPU operation excep */
-#define sISR_NE 0x80000000 /* multiple synchronous exceptions excep */
-
-/* cache control registers */
-#define CHCTR __SYSREG(0xc0000070, u16) /* cache control */
-#define CHCTR_ICEN 0x0001 /* instruction cache enable */
-#define CHCTR_DCEN 0x0002 /* data cache enable */
-#define CHCTR_ICBUSY 0x0004 /* instruction cache busy */
-#define CHCTR_DCBUSY 0x0008 /* data cache busy */
-#define CHCTR_ICINV 0x0010 /* instruction cache invalidate */
-#define CHCTR_DCINV 0x0020 /* data cache invalidate */
-#define CHCTR_DCWTMD 0x0040 /* data cache writing mode */
-#define CHCTR_DCWTMD_WRBACK 0x0000 /* - write back mode */
-#define CHCTR_DCWTMD_WRTHROUGH 0x0040 /* - write through mode */
-#define CHCTR_DCALMD 0x0080 /* data cache allocation mode */
-#define CHCTR_ICWMD 0x0f00 /* instruction cache way mode */
-#define CHCTR_DCWMD 0xf000 /* data cache way mode */
-
-#ifdef CONFIG_AM34_2
-#define ICIVCR __SYSREG(0xc0000c00, u32) /* icache area invalidate control */
-#define ICIVCR_ICIVBSY 0x00000008 /* icache area invalidate busy */
-#define ICIVCR_ICI 0x00000001 /* icache area invalidate */
-
-#define ICIVMR __SYSREG(0xc0000c04, u32) /* icache area invalidate mask */
-
-#define DCPGCR __SYSREG(0xc0000c10, u32) /* data cache area purge control */
-#define DCPGCR_DCPGBSY 0x00000008 /* data cache area purge busy */
-#define DCPGCR_DCP 0x00000002 /* data cache area purge */
-#define DCPGCR_DCI 0x00000001 /* data cache area invalidate */
-
-#define DCPGMR __SYSREG(0xc0000c14, u32) /* data cache area purge mask */
-#endif /* CONFIG_AM34_2 */
-
-/* MMU control registers */
-#define MMUCTR __SYSREG(0xc0000090, u32) /* MMU control register */
-#define MMUCTR_IRP 0x0000003f /* instruction TLB replace pointer */
-#define MMUCTR_ITE 0x00000040 /* instruction TLB enable */
-#define MMUCTR_IIV 0x00000080 /* instruction TLB invalidate */
-#define MMUCTR_ITL 0x00000700 /* instruction TLB lock pointer */
-#define MMUCTR_ITL_NOLOCK 0x00000000 /* - no lock */
-#define MMUCTR_ITL_LOCK0 0x00000100 /* - entry 0 locked */
-#define MMUCTR_ITL_LOCK0_1 0x00000200 /* - entry 0-1 locked */
-#define MMUCTR_ITL_LOCK0_3 0x00000300 /* - entry 0-3 locked */
-#define MMUCTR_ITL_LOCK0_7 0x00000400 /* - entry 0-7 locked */
-#define MMUCTR_ITL_LOCK0_15 0x00000500 /* - entry 0-15 locked */
-#define MMUCTR_CE 0x00008000 /* cacheable bit enable */
-#define MMUCTR_DRP 0x003f0000 /* data TLB replace pointer */
-#define MMUCTR_DTE 0x00400000 /* data TLB enable */
-#define MMUCTR_DIV 0x00800000 /* data TLB invalidate */
-#define MMUCTR_DTL 0x07000000 /* data TLB lock pointer */
-#define MMUCTR_DTL_NOLOCK 0x00000000 /* - no lock */
-#define MMUCTR_DTL_LOCK0 0x01000000 /* - entry 0 locked */
-#define MMUCTR_DTL_LOCK0_1 0x02000000 /* - entry 0-1 locked */
-#define MMUCTR_DTL_LOCK0_3 0x03000000 /* - entry 0-3 locked */
-#define MMUCTR_DTL_LOCK0_7 0x04000000 /* - entry 0-7 locked */
-#define MMUCTR_DTL_LOCK0_15 0x05000000 /* - entry 0-15 locked */
-#ifdef CONFIG_AM34_2
-#define MMUCTR_WTE 0x80000000 /* write-through cache TLB entry bit enable */
-#endif
-
-#define PIDR __SYSREG(0xc0000094, u16) /* PID register */
-#define PIDR_PID 0x00ff /* process identifier */
-
-#define PTBR __SYSREG(0xc0000098, unsigned long) /* Page table base register */
-
-#define IPTEL __SYSREG(0xc00000a0, u32) /* instruction TLB entry */
-#define DPTEL __SYSREG(0xc00000b0, u32) /* data TLB entry */
-#define xPTEL_V 0x00000001 /* TLB entry valid */
-#define xPTEL_UNUSED1 0x00000002 /* unused bit */
-#define xPTEL_UNUSED2 0x00000004 /* unused bit */
-#define xPTEL_C 0x00000008 /* cached if set */
-#define xPTEL_PV 0x00000010 /* page valid */
-#define xPTEL_D 0x00000020 /* dirty */
-#define xPTEL_PR 0x000001c0 /* page protection */
-#define xPTEL_PR_ROK 0x00000000 /* - R/O kernel */
-#define xPTEL_PR_RWK 0x00000100 /* - R/W kernel */
-#define xPTEL_PR_ROK_ROU 0x00000080 /* - R/O kernel and R/O user */
-#define xPTEL_PR_RWK_ROU 0x00000180 /* - R/W kernel and R/O user */
-#define xPTEL_PR_RWK_RWU 0x000001c0 /* - R/W kernel and R/W user */
-#define xPTEL_G 0x00000200 /* global (use PID if 0) */
-#define xPTEL_PS 0x00000c00 /* page size */
-#define xPTEL_PS_4Kb 0x00000000 /* - 4Kb page */
-#define xPTEL_PS_128Kb 0x00000400 /* - 128Kb page */
-#define xPTEL_PS_1Kb 0x00000800 /* - 1Kb page */
-#define xPTEL_PS_4Mb 0x00000c00 /* - 4Mb page */
-#define xPTEL_PPN 0xfffff006 /* physical page number */
-
-#define IPTEU __SYSREG(0xc00000a4, u32) /* instruction TLB virtual addr */
-#define DPTEU __SYSREG(0xc00000b4, u32) /* data TLB virtual addr */
-#define xPTEU_VPN 0xfffffc00 /* virtual page number */
-#define xPTEU_PID 0x000000ff /* process identifier to which applicable */
-
-#define IPTEL2 __SYSREG(0xc00000a8, u32) /* instruction TLB entry */
-#define DPTEL2 __SYSREG(0xc00000b8, u32) /* data TLB entry */
-#define xPTEL2_V 0x00000001 /* TLB entry valid */
-#define xPTEL2_C 0x00000002 /* cacheable */
-#define xPTEL2_PV 0x00000004 /* page valid */
-#define xPTEL2_D 0x00000008 /* dirty */
-#define xPTEL2_PR 0x00000070 /* page protection */
-#define xPTEL2_PR_ROK 0x00000000 /* - R/O kernel */
-#define xPTEL2_PR_RWK 0x00000040 /* - R/W kernel */
-#define xPTEL2_PR_ROK_ROU 0x00000020 /* - R/O kernel and R/O user */
-#define xPTEL2_PR_RWK_ROU 0x00000060 /* - R/W kernel and R/O user */
-#define xPTEL2_PR_RWK_RWU 0x00000070 /* - R/W kernel and R/W user */
-#define xPTEL2_G 0x00000080 /* global (use PID if 0) */
-#define xPTEL2_PS 0x00000300 /* page size */
-#define xPTEL2_PS_4Kb 0x00000000 /* - 4Kb page */
-#define xPTEL2_PS_128Kb 0x00000100 /* - 128Kb page */
-#define xPTEL2_PS_1Kb 0x00000200 /* - 1Kb page */
-#define xPTEL2_PS_4Mb 0x00000300 /* - 4Mb page */
-#define xPTEL2_CWT 0x00000400 /* cacheable write-through */
-#define xPTEL2_UNUSED1 0x00000800 /* unused bit (broadcast mask) */
-#define xPTEL2_PPN 0xfffff000 /* physical page number */
-
-#define xPTEL2_V_BIT 0 /* bit numbers corresponding to above masks */
-#define xPTEL2_C_BIT 1
-#define xPTEL2_PV_BIT 2
-#define xPTEL2_D_BIT 3
-#define xPTEL2_G_BIT 7
-#define xPTEL2_UNUSED1_BIT 11
-
-#define MMUFCR __SYSREGC(0xc000009c, u32) /* MMU exception cause */
-#define MMUFCR_IFC __SYSREGC(0xc000009c, u16) /* MMU instruction excep cause */
-#define MMUFCR_DFC __SYSREGC(0xc000009e, u16) /* MMU data exception cause */
-#define MMUFCR_xFC_TLBMISS 0x0001 /* TLB miss flag */
-#define MMUFCR_xFC_INITWR 0x0002 /* initial write excep flag */
-#define MMUFCR_xFC_PGINVAL 0x0004 /* page invalid excep flag */
-#define MMUFCR_xFC_PROTVIOL 0x0008 /* protection violation excep flag */
-#define MMUFCR_xFC_ACCESS 0x0010 /* access level flag */
-#define MMUFCR_xFC_ACCESS_USR 0x0000 /* - user mode */
-#define MMUFCR_xFC_ACCESS_SR 0x0010 /* - supervisor mode */
-#define MMUFCR_xFC_TYPE 0x0020 /* access type flag */
-#define MMUFCR_xFC_TYPE_READ 0x0000 /* - read */
-#define MMUFCR_xFC_TYPE_WRITE 0x0020 /* - write */
-#define MMUFCR_xFC_PR 0x01c0 /* page protection flag */
-#define MMUFCR_xFC_PR_ROK 0x0000 /* - R/O kernel */
-#define MMUFCR_xFC_PR_RWK 0x0100 /* - R/W kernel */
-#define MMUFCR_xFC_PR_ROK_ROU 0x0080 /* - R/O kernel and R/O user */
-#define MMUFCR_xFC_PR_RWK_ROU 0x0180 /* - R/W kernel and R/O user */
-#define MMUFCR_xFC_PR_RWK_RWU 0x01c0 /* - R/W kernel and R/W user */
-#define MMUFCR_xFC_ILLADDR 0x0200 /* illegal address excep flag */
-
-#ifdef CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
-/* atomic operation registers */
-#define AAR __SYSREG(0xc0000a00, u32) /* cacheable address */
-#define AAR2 __SYSREG(0xc0000a04, u32) /* uncacheable address */
-#define ADR __SYSREG(0xc0000a08, u32) /* data */
-#define ASR __SYSREG(0xc0000a0c, u32) /* status */
-#define AARU __SYSREG(0xd400aa00, u32) /* user address */
-#define ADRU __SYSREG(0xd400aa08, u32) /* user data */
-#define ASRU __SYSREG(0xd400aa0c, u32) /* user status */
-
-#define ASR_RW 0x00000008 /* read */
-#define ASR_BW 0x00000004 /* bus error */
-#define ASR_IW 0x00000002 /* interrupt */
-#define ASR_LW 0x00000001 /* bus lock */
-
-#define ASRU_RW ASR_RW /* read */
-#define ASRU_BW ASR_BW /* bus error */
-#define ASRU_IW ASR_IW /* interrupt */
-#define ASRU_LW ASR_LW /* bus lock */
-
-/* in inline ASM, we stick the base pointer in to a reg and use offsets from
- * it */
-#define ATOMIC_OPS_BASE_ADDR 0xc0000a00
-#ifndef __ASSEMBLY__
-asm(
- "_AAR = 0\n"
- "_AAR2 = 4\n"
- "_ADR = 8\n"
- "_ASR = 12\n");
-#else
-#define _AAR 0
-#define _AAR2 4
-#define _ADR 8
-#define _ASR 12
-#endif
-
-/* physical page address for userspace atomic operations registers */
-#define USER_ATOMIC_OPS_PAGE_ADDR 0xd400a000
-
-#endif /* CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT */
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_CPU_REGS_H */
+++ /dev/null
-/* MN10300 Current task structure accessor
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_CURRENT_H
-#define _ASM_CURRENT_H
-
-#include <linux/thread_info.h>
-
-/*
- * dedicate E2 to keeping the current task pointer
- */
-#ifdef CONFIG_MN10300_CURRENT_IN_E2
-
-register struct task_struct *const current asm("e2") __attribute__((used));
-
-#define get_current() current
-
-extern struct task_struct *__current;
-
-#else
-static inline __attribute__((const))
-struct task_struct *get_current(void)
-{
- return current_thread_info()->task;
-}
-
-#define current get_current()
-#endif
-
-#endif /* _ASM_CURRENT_H */
+++ /dev/null
-/* Kernel debugger for MN10300
- *
- * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_DEBUGGER_H
-#define _ASM_DEBUGGER_H
-
-#if defined(CONFIG_KERNEL_DEBUGGER)
-
-extern int debugger_intercept(enum exception_code, int, int, struct pt_regs *);
-extern int at_debugger_breakpoint(struct pt_regs *);
-
-#ifndef CONFIG_MN10300_DEBUGGER_CACHE_NO_FLUSH
-extern void debugger_local_cache_flushinv(void);
-extern void debugger_local_cache_flushinv_one(u8 *);
-#else
-static inline void debugger_local_cache_flushinv(void) {}
-static inline void debugger_local_cache_flushinv_one(u8 *addr) {}
-#endif
-
-#else /* CONFIG_KERNEL_DEBUGGER */
-
-static inline int debugger_intercept(enum exception_code excep,
- int signo, int si_code,
- struct pt_regs *regs)
-{
- return 0;
-}
-
-static inline int at_debugger_breakpoint(struct pt_regs *regs)
-{
- return 0;
-}
-
-#endif /* CONFIG_KERNEL_DEBUGGER */
-#endif /* _ASM_DEBUGGER_H */
+++ /dev/null
-/* MN10300 Uninterruptible delay routines
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_DELAY_H
-#define _ASM_DELAY_H
-
-extern void __udelay(unsigned long usecs);
-extern void __delay(unsigned long loops);
-
-#define udelay(n) __udelay(n)
-
-#endif /* _ASM_DELAY_H */
+++ /dev/null
-/* MN10300 64-bit division
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_DIV64
-#define _ASM_DIV64
-
-#include <linux/types.h>
-
-extern void ____unhandled_size_in_do_div___(void);
-
-/*
- * Beginning with gcc 4.6, the MDR register is represented explicitly. We
- * must, therefore, at least explicitly clobber the register when we make
- * changes to it. The following assembly fragments *could* be rearranged in
- * order to leave the moves to/from the MDR register to the compiler, but the
- * gains would be minimal at best.
- */
-#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
-# define CLOBBER_MDR_CC "mdr", "cc"
-#else
-# define CLOBBER_MDR_CC "cc"
-#endif
-
-/*
- * divide n by base, leaving the result in n and returning the remainder
- * - we can do this quite efficiently on the MN10300 by cascading the divides
- * through the MDR register
- */
-#define do_div(n, base) \
-({ \
- unsigned __rem = 0; \
- if (sizeof(n) <= 4) { \
- asm("mov %1,mdr \n" \
- "divu %2,%0 \n" \
- "mov mdr,%1 \n" \
- : "+r"(n), "=d"(__rem) \
- : "r"(base), "1"(__rem) \
- : CLOBBER_MDR_CC \
- ); \
- } else if (sizeof(n) <= 8) { \
- union { \
- unsigned long long l; \
- u32 w[2]; \
- } __quot; \
- __quot.l = n; \
- asm("mov %0,mdr \n" /* MDR = 0 */ \
- "divu %3,%1 \n" \
- /* __quot.MSL = __div.MSL / base, */ \
- /* MDR = MDR:__div.MSL % base */ \
- "divu %3,%2 \n" \
- /* __quot.LSL = MDR:__div.LSL / base, */ \
- /* MDR = MDR:__div.LSL % base */ \
- "mov mdr,%0 \n" \
- : "=d"(__rem), "=r"(__quot.w[1]), "=r"(__quot.w[0]) \
- : "r"(base), "0"(__rem), "1"(__quot.w[1]), \
- "2"(__quot.w[0]) \
- : CLOBBER_MDR_CC \
- ); \
- n = __quot.l; \
- } else { \
- ____unhandled_size_in_do_div___(); \
- } \
- __rem; \
-})
-
-/*
- * do an unsigned 32-bit multiply and divide with intermediate 64-bit product
- * so as not to lose accuracy
- * - we use the MDR register to hold the MSW of the product
- */
-static inline __attribute__((const))
-unsigned __muldiv64u(unsigned val, unsigned mult, unsigned div)
-{
- unsigned result;
-
- asm("mulu %2,%0 \n" /* MDR:val = val*mult */
- "divu %3,%0 \n" /* val = MDR:val/div;
- * MDR = MDR:val%div */
- : "=r"(result)
- : "0"(val), "ir"(mult), "r"(div)
- : CLOBBER_MDR_CC
- );
-
- return result;
-}
-
-/*
- * do a signed 32-bit multiply and divide with intermediate 64-bit product so
- * as not to lose accuracy
- * - we use the MDR register to hold the MSW of the product
- */
-static inline __attribute__((const))
-signed __muldiv64s(signed val, signed mult, signed div)
-{
- signed result;
-
- asm("mul %2,%0 \n" /* MDR:val = val*mult */
- "div %3,%0 \n" /* val = MDR:val/div;
- * MDR = MDR:val%div */
- : "=r"(result)
- : "0"(val), "ir"(mult), "r"(div)
- : CLOBBER_MDR_CC
- );
-
- return result;
-}
-
-#endif /* _ASM_DIV64 */
+++ /dev/null
-/* DMA mapping routines for the MN10300 arch
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_DMA_MAPPING_H
-#define _ASM_DMA_MAPPING_H
-
-extern const struct dma_map_ops mn10300_dma_ops;
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
- return &mn10300_dma_ops;
-}
-
-#endif
+++ /dev/null
-/* MN10300 ISA DMA handlers and definitions
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_DMA_H
-#define _ASM_DMA_H
-
-#include <linux/spinlock.h>
-#include <asm/io.h>
-#include <linux/delay.h>
-
-#undef MAX_DMA_CHANNELS /* switch off linux/kernel/dma.c */
-#define MAX_DMA_ADDRESS 0xbfffffff
-
-extern spinlock_t dma_spin_lock;
-
-static inline unsigned long claim_dma_lock(void)
-{
- unsigned long flags;
- spin_lock_irqsave(&dma_spin_lock, flags);
- return flags;
-}
-
-static inline void release_dma_lock(unsigned long flags)
-{
- spin_unlock_irqrestore(&dma_spin_lock, flags);
-}
-
-/* enable/disable a specific DMA channel */
-static inline void enable_dma(unsigned int dmanr)
-{
-}
-
-static inline void disable_dma(unsigned int dmanr)
-{
-}
-
-/* Clear the 'DMA Pointer Flip Flop'.
- * Write 0 for LSB/MSB, 1 for MSB/LSB access.
- * Use this once to initialize the FF to a known state.
- * After that, keep track of it. :-)
- * --- In order to do that, the DMA routines below should ---
- * --- only be used while holding the DMA lock ! ---
- */
-static inline void clear_dma_ff(unsigned int dmanr)
-{
-}
-
-/* set mode (above) for a specific DMA channel */
-static inline void set_dma_mode(unsigned int dmanr, char mode)
-{
-}
-
-/* Set only the page register bits of the transfer address.
- * This is used for successive transfers when we know the contents of
- * the lower 16 bits of the DMA current address register, but a 64k boundary
- * may have been crossed.
- */
-static inline void set_dma_page(unsigned int dmanr, char pagenr)
-{
-}
-
-
-/* Set transfer address & page bits for specific DMA channel.
- * Assumes dma flipflop is clear.
- */
-static inline void set_dma_addr(unsigned int dmanr, unsigned int a)
-{
-}
-
-
-/* Set transfer size (max 64k for DMA1..3, 128k for DMA5..7) for
- * a specific DMA channel.
- * You must ensure the parameters are valid.
- * NOTE: from a manual: "the number of transfers is one more
- * than the initial word count"! This is taken into account.
- * Assumes dma flip-flop is clear.
- * NOTE 2: "count" represents _bytes_ and must be even for channels 5-7.
- */
-static inline void set_dma_count(unsigned int dmanr, unsigned int count)
-{
-}
-
-
-/* Get DMA residue count. After a DMA transfer, this
- * should return zero. Reading this while a DMA transfer is
- * still in progress will return unpredictable results.
- * If called before the channel has been used, it may return 1.
- * Otherwise, it returns the number of _bytes_ left to transfer.
- *
- * Assumes DMA flip-flop is clear.
- */
-static inline int get_dma_residue(unsigned int dmanr)
-{
- return 0;
-}
-
-
-/* These are in kernel/dma.c: */
-extern int request_dma(unsigned int dmanr, const char *device_id);
-extern void free_dma(unsigned int dmanr);
-
-/* From PCI */
-
-#ifdef CONFIG_PCI
-extern int isa_dma_bridge_buggy;
-#else
-#define isa_dma_bridge_buggy (0)
-#endif
-
-#endif /* _ASM_DMA_H */
+++ /dev/null
-/* MN10300 on-board DMA controller registers
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_DMACTL_REGS_H
-#define _ASM_DMACTL_REGS_H
-
-#include <proc/dmactl-regs.h>
-
-#endif /* _ASM_DMACTL_REGS_H */
+++ /dev/null
-/* MN10300 ELF constant and register definitions
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_ELF_H
-#define _ASM_ELF_H
-
-#include <linux/utsname.h>
-#include <asm/ptrace.h>
-#include <asm/user.h>
-
-/*
- * AM33 relocations
- */
-#define R_MN10300_NONE 0 /* No reloc. */
-#define R_MN10300_32 1 /* Direct 32 bit. */
-#define R_MN10300_16 2 /* Direct 16 bit. */
-#define R_MN10300_8 3 /* Direct 8 bit. */
-#define R_MN10300_PCREL32 4 /* PC-relative 32-bit. */
-#define R_MN10300_PCREL16 5 /* PC-relative 16-bit signed. */
-#define R_MN10300_PCREL8 6 /* PC-relative 8-bit signed. */
-#define R_MN10300_24 9 /* Direct 24 bit. */
-#define R_MN10300_RELATIVE 23 /* Adjust by program base. */
-#define R_MN10300_SYM_DIFF 33 /* Adjustment when relaxing. */
-#define R_MN10300_ALIGN 34 /* Alignment requirement. */
-
-/*
- * AM33/AM34 HW Capabilities
- */
-#define HWCAP_MN10300_ATOMIC_OP_UNIT 1 /* Has AM34 Atomic Operations */
-
-
-/*
- * ELF register definitions..
- */
-typedef unsigned long elf_greg_t;
-
-#define ELF_NGREG ((sizeof(struct pt_regs) / sizeof(elf_greg_t)) - 1)
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-
-#define ELF_NFPREG 32
-typedef float elf_fpreg_t;
-
-typedef struct {
- elf_fpreg_t fpregs[ELF_NFPREG];
- u_int32_t fpcr;
-} elf_fpregset_t;
-
-/*
- * This is used to ensure we don't load something for the wrong architecture
- */
-#define elf_check_arch(x) \
- (((x)->e_machine == EM_CYGNUS_MN10300) || \
- ((x)->e_machine == EM_MN10300))
-
-/*
- * These are used to set parameters in the core dumps.
- */
-#define ELF_CLASS ELFCLASS32
-#define ELF_DATA ELFDATA2LSB
-#define ELF_ARCH EM_MN10300
-
-/*
- * ELF process initialiser
- */
-#define ELF_PLAT_INIT(_r, load_addr) \
-do { \
- struct pt_regs *_ur = current->thread.uregs; \
- _ur->a3 = 0; _ur->a2 = 0; _ur->d3 = 0; _ur->d2 = 0; \
- _ur->mcvf = 0; _ur->mcrl = 0; _ur->mcrh = 0; _ur->mdrq = 0; \
- _ur->e1 = 0; _ur->e0 = 0; _ur->e7 = 0; _ur->e6 = 0; \
- _ur->e5 = 0; _ur->e4 = 0; _ur->e3 = 0; _ur->e2 = 0; \
- _ur->lar = 0; _ur->lir = 0; _ur->mdr = 0; \
- _ur->a1 = 0; _ur->a0 = 0; _ur->d1 = 0; _ur->d0 = 0; \
-} while (0)
-
-#define CORE_DUMP_USE_REGSET
-#define ELF_EXEC_PAGESIZE 4096
-
-/*
- * This is the location that an ET_DYN program is loaded if exec'ed. Typical
- * use of this is to invoke "./ld.so someprog" to test out a new version of
- * the loader. We need to make sure that it is out of the way of the program
- * that it will "exec", and that there is sufficient room for the brk.
- * - must clear the VMALLOC area
- */
-#define ELF_ET_DYN_BASE 0x04000000
-
-/*
- * regs is struct pt_regs, pr_reg is elf_gregset_t (which is
- * now struct user_regs, they are different)
- * - ELF_CORE_COPY_REGS has been guessed, and may be wrong
- */
-#define ELF_CORE_COPY_REGS(pr_reg, regs) \
-do { \
- pr_reg[0] = regs->a3; \
- pr_reg[1] = regs->a2; \
- pr_reg[2] = regs->d3; \
- pr_reg[3] = regs->d2; \
- pr_reg[4] = regs->mcvf; \
- pr_reg[5] = regs->mcrl; \
- pr_reg[6] = regs->mcrh; \
- pr_reg[7] = regs->mdrq; \
- pr_reg[8] = regs->e1; \
- pr_reg[9] = regs->e0; \
- pr_reg[10] = regs->e7; \
- pr_reg[11] = regs->e6; \
- pr_reg[12] = regs->e5; \
- pr_reg[13] = regs->e4; \
- pr_reg[14] = regs->e3; \
- pr_reg[15] = regs->e2; \
- pr_reg[16] = regs->sp; \
- pr_reg[17] = regs->lar; \
- pr_reg[18] = regs->lir; \
- pr_reg[19] = regs->mdr; \
- pr_reg[20] = regs->a1; \
- pr_reg[21] = regs->a0; \
- pr_reg[22] = regs->d1; \
- pr_reg[23] = regs->d0; \
- pr_reg[24] = regs->orig_d0; \
- pr_reg[25] = regs->epsw; \
- pr_reg[26] = regs->pc; \
-} while (0);
-
-/*
- * This yields a mask that user programs can use to figure out what
- * instruction set this CPU supports. This could be done in user space,
- * but it's not easy, and we've already done it here.
- */
-#ifdef CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
-#define ELF_HWCAP (HWCAP_MN10300_ATOMIC_OP_UNIT)
-#else
-#define ELF_HWCAP (0)
-#endif
-
-/*
- * This yields a string that ld.so will use to load implementation
- * specific libraries for optimization. This is more specific in
- * intent than poking at uname or /proc/cpuinfo.
- *
- * For the moment, we have only optimizations for the Intel generations,
- * but that could change...
- */
-#define ELF_PLATFORM (NULL)
-
-#endif /* _ASM_ELF_H */
+++ /dev/null
-#include <asm-generic/emergency-restart.h>
+++ /dev/null
-/* MN10300 Microcontroller core exceptions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_EXCEPTIONS_H
-#define _ASM_EXCEPTIONS_H
-
-#include <linux/linkage.h>
-
-/*
- * define the breakpoint instruction opcode to use
- * - note that the JTAG unit steals 0xFF, so you can't use JTAG and GDBSTUB at
- * the same time.
- */
-#define GDBSTUB_BKPT 0xFF
-
-#ifndef __ASSEMBLY__
-
-/*
- * enumeration of exception codes (as extracted from TBR MSW)
- */
-enum exception_code {
- EXCEP_RESET = 0x000000, /* reset */
-
- /* MMU exceptions */
- EXCEP_ITLBMISS = 0x000100, /* instruction TLB miss */
- EXCEP_DTLBMISS = 0x000108, /* data TLB miss */
- EXCEP_IAERROR = 0x000110, /* instruction address */
- EXCEP_DAERROR = 0x000118, /* data address */
-
- /* system exceptions */
- EXCEP_TRAP = 0x000128, /* program interrupt (PI instruction) */
- EXCEP_ISTEP = 0x000130, /* single step */
- EXCEP_IBREAK = 0x000150, /* instruction breakpoint */
- EXCEP_OBREAK = 0x000158, /* operand breakpoint */
- EXCEP_PRIVINS = 0x000160, /* privileged instruction execution */
- EXCEP_UNIMPINS = 0x000168, /* unimplemented instruction execution */
- EXCEP_UNIMPEXINS = 0x000170, /* unimplemented extended instruction execution */
- EXCEP_MEMERR = 0x000178, /* illegal memory access */
- EXCEP_MISALIGN = 0x000180, /* misalignment */
- EXCEP_BUSERROR = 0x000188, /* bus error */
- EXCEP_ILLINSACC = 0x000190, /* illegal instruction access */
- EXCEP_ILLDATACC = 0x000198, /* illegal data access */
- EXCEP_IOINSACC = 0x0001a0, /* I/O space instruction access */
- EXCEP_PRIVINSACC = 0x0001a8, /* privileged space instruction access */
- EXCEP_PRIVDATACC = 0x0001b0, /* privileged space data access */
- EXCEP_DATINSACC = 0x0001b8, /* data space instruction access */
- EXCEP_DOUBLE_FAULT = 0x000200, /* double fault */
-
- /* FPU exceptions */
- EXCEP_FPU_DISABLED = 0x0001c0, /* FPU disabled */
- EXCEP_FPU_UNIMPINS = 0x0001c8, /* FPU unimplemented operation */
- EXCEP_FPU_OPERATION = 0x0001d0, /* FPU operation */
-
- /* interrupts */
- EXCEP_WDT = 0x000240, /* watchdog timer overflow */
- EXCEP_NMI = 0x000248, /* non-maskable interrupt */
- EXCEP_IRQ_LEVEL0 = 0x000280, /* level 0 maskable interrupt */
- EXCEP_IRQ_LEVEL1 = 0x000288, /* level 1 maskable interrupt */
- EXCEP_IRQ_LEVEL2 = 0x000290, /* level 2 maskable interrupt */
- EXCEP_IRQ_LEVEL3 = 0x000298, /* level 3 maskable interrupt */
- EXCEP_IRQ_LEVEL4 = 0x0002a0, /* level 4 maskable interrupt */
- EXCEP_IRQ_LEVEL5 = 0x0002a8, /* level 5 maskable interrupt */
- EXCEP_IRQ_LEVEL6 = 0x0002b0, /* level 6 maskable interrupt */
-
- /* system calls */
- EXCEP_SYSCALL0 = 0x000300, /* system call 0 */
- EXCEP_SYSCALL1 = 0x000308, /* system call 1 */
- EXCEP_SYSCALL2 = 0x000310, /* system call 2 */
- EXCEP_SYSCALL3 = 0x000318, /* system call 3 */
- EXCEP_SYSCALL4 = 0x000320, /* system call 4 */
- EXCEP_SYSCALL5 = 0x000328, /* system call 5 */
- EXCEP_SYSCALL6 = 0x000330, /* system call 6 */
- EXCEP_SYSCALL7 = 0x000338, /* system call 7 */
- EXCEP_SYSCALL8 = 0x000340, /* system call 8 */
- EXCEP_SYSCALL9 = 0x000348, /* system call 9 */
- EXCEP_SYSCALL10 = 0x000350, /* system call 10 */
- EXCEP_SYSCALL11 = 0x000358, /* system call 11 */
- EXCEP_SYSCALL12 = 0x000360, /* system call 12 */
- EXCEP_SYSCALL13 = 0x000368, /* system call 13 */
- EXCEP_SYSCALL14 = 0x000370, /* system call 14 */
- EXCEP_SYSCALL15 = 0x000378, /* system call 15 */
-};
-
-extern void __set_intr_stub(enum exception_code code, void *handler);
-extern void set_intr_stub(enum exception_code code, void *handler);
-
-struct pt_regs;
-
-extern asmlinkage void __common_exception(void);
-extern asmlinkage void itlb_miss(void);
-extern asmlinkage void dtlb_miss(void);
-extern asmlinkage void itlb_aerror(void);
-extern asmlinkage void dtlb_aerror(void);
-extern asmlinkage void raw_bus_error(void);
-extern asmlinkage void double_fault(void);
-extern asmlinkage int system_call(struct pt_regs *);
-extern asmlinkage void nmi(struct pt_regs *, enum exception_code);
-extern asmlinkage void uninitialised_exception(struct pt_regs *,
- enum exception_code);
-extern asmlinkage void irq_handler(void);
-extern asmlinkage void profile_handler(void);
-extern asmlinkage void nmi_handler(void);
-extern asmlinkage void misalignment(struct pt_regs *, enum exception_code);
-
-extern void die(const char *, struct pt_regs *, enum exception_code)
- __noreturn;
-
-extern int die_if_no_fixup(const char *, struct pt_regs *, enum exception_code);
-
-#define NUM2EXCEP_IRQ_LEVEL(num) (EXCEP_IRQ_LEVEL0 + (num) * 8)
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _ASM_EXCEPTIONS_H */
+++ /dev/null
-/* MN10300 FPU definitions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- * Derived from include/asm-i386/i387.h: Copyright (C) 1994 Linus Torvalds
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_FPU_H
-#define _ASM_FPU_H
-
-#ifndef __ASSEMBLY__
-
-#include <linux/sched.h>
-#include <asm/exceptions.h>
-#include <asm/sigcontext.h>
-
-#ifdef __KERNEL__
-
-extern asmlinkage void fpu_disabled(void);
-
-#ifdef CONFIG_FPU
-
-#ifdef CONFIG_LAZY_SAVE_FPU
-/* the task that currently owns the FPU state */
-extern struct task_struct *fpu_state_owner;
-#endif
-
-#if (THREAD_USING_FPU & ~0xff)
-#error THREAD_USING_FPU must be smaller than 0x100.
-#endif
-
-static inline void set_using_fpu(struct task_struct *tsk)
-{
- asm volatile(
- "bset %0,(0,%1)"
- :
- : "i"(THREAD_USING_FPU), "a"(&tsk->thread.fpu_flags)
- : "memory", "cc");
-}
-
-static inline void clear_using_fpu(struct task_struct *tsk)
-{
- asm volatile(
- "bclr %0,(0,%1)"
- :
- : "i"(THREAD_USING_FPU), "a"(&tsk->thread.fpu_flags)
- : "memory", "cc");
-}
-
-#define is_using_fpu(tsk) ((tsk)->thread.fpu_flags & THREAD_USING_FPU)
-
-extern asmlinkage void fpu_kill_state(struct task_struct *);
-extern asmlinkage void fpu_exception(struct pt_regs *, enum exception_code);
-extern asmlinkage void fpu_init_state(void);
-extern asmlinkage void fpu_save(struct fpu_state_struct *);
-extern int fpu_setup_sigcontext(struct fpucontext *buf);
-extern int fpu_restore_sigcontext(struct fpucontext *buf);
-
-static inline void unlazy_fpu(struct task_struct *tsk)
-{
- preempt_disable();
-#ifndef CONFIG_LAZY_SAVE_FPU
- if (tsk->thread.fpu_flags & THREAD_HAS_FPU) {
- fpu_save(&tsk->thread.fpu_state);
- tsk->thread.fpu_flags &= ~THREAD_HAS_FPU;
- tsk->thread.uregs->epsw &= ~EPSW_FE;
- }
-#else
- if (fpu_state_owner == tsk)
- fpu_save(&tsk->thread.fpu_state);
-#endif
- preempt_enable();
-}
-
-static inline void exit_fpu(struct task_struct *tsk)
-{
-#ifdef CONFIG_LAZY_SAVE_FPU
- preempt_disable();
- if (fpu_state_owner == tsk)
- fpu_state_owner = NULL;
- preempt_enable();
-#endif
-}
-
-static inline void flush_fpu(void)
-{
- struct task_struct *tsk = current;
-
- preempt_disable();
-#ifndef CONFIG_LAZY_SAVE_FPU
- if (tsk->thread.fpu_flags & THREAD_HAS_FPU) {
- tsk->thread.fpu_flags &= ~THREAD_HAS_FPU;
- tsk->thread.uregs->epsw &= ~EPSW_FE;
- }
-#else
- if (fpu_state_owner == tsk) {
- fpu_state_owner = NULL;
- tsk->thread.uregs->epsw &= ~EPSW_FE;
- }
-#endif
- preempt_enable();
- clear_using_fpu(tsk);
-}
-
-#else /* CONFIG_FPU */
-
-extern asmlinkage
-void unexpected_fpu_exception(struct pt_regs *, enum exception_code);
-#define fpu_exception unexpected_fpu_exception
-
-struct task_struct;
-struct fpu_state_struct;
-static inline bool is_using_fpu(struct task_struct *tsk) { return false; }
-static inline void set_using_fpu(struct task_struct *tsk) {}
-static inline void clear_using_fpu(struct task_struct *tsk) {}
-static inline void fpu_init_state(void) {}
-static inline void fpu_save(struct fpu_state_struct *s) {}
-static inline void fpu_kill_state(struct task_struct *tsk) {}
-static inline void unlazy_fpu(struct task_struct *tsk) {}
-static inline void exit_fpu(struct task_struct *tsk) {}
-static inline void flush_fpu(void) {}
-static inline int fpu_setup_sigcontext(struct fpucontext *buf) { return 0; }
-static inline int fpu_restore_sigcontext(struct fpucontext *buf) { return 0; }
-#endif /* CONFIG_FPU */
-
-#endif /* __KERNEL__ */
-#endif /* !__ASSEMBLY__ */
-#endif /* _ASM_FPU_H */
+++ /dev/null
-/* MN10300 Microcontroller core system register definitions -*- asm -*-
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_FRAME_INC
-#define _ASM_FRAME_INC
-
-#ifndef __ASSEMBLY__
-#error not for use in C files
-#endif
-
-#ifndef __ASM_OFFSETS_H__
-#include <asm/asm-offsets.h>
-#endif
-#include <asm/thread_info.h>
-
-#define pi break
-
-#define fp a3
-
-###############################################################################
-#
-# build a stack frame from the registers
-# - the caller has subtracted 4 from SP before coming here
-#
-###############################################################################
-.macro SAVE_ALL
- add -4,sp # next exception frame ptr save area
- movm [other],(sp)
- mov usp,a1
- mov a1,(sp) # USP in MOVM[other] dummy slot
- movm [d2,d3,a2,a3,exreg0,exreg1,exother],(sp)
- mov sp,fp # FRAME pointer in A3
- add -12,sp # allow for calls to be made
-
- # push the exception frame onto the front of the list
- GET_THREAD_INFO a1
- mov (TI_frame,a1),a0
- mov a0,(REG_NEXT,fp)
- mov fp,(TI_frame,a1)
-
- # disable the FPU inside the kernel
- and ~EPSW_FE,epsw
-
- # we may be holding current in E2
-#ifdef CONFIG_MN10300_CURRENT_IN_E2
- mov (__current),e2
-#endif
-.endm
-
-###############################################################################
-#
-# restore the registers from a stack frame
-#
-###############################################################################
-.macro RESTORE_ALL
- # peel back the stack to the calling frame
- # - we need that when returning from interrupts to kernel mode
- GET_THREAD_INFO a0
- mov (TI_frame,a0),fp
- mov fp,sp
- mov (REG_NEXT,fp),d0
- mov d0,(TI_frame,a0) # userspace has regs->next == 0
-
-#ifndef CONFIG_MN10300_USING_JTAG
- mov (REG_EPSW,fp),d0
- btst EPSW_T,d0
- beq 99f
-
- or EPSW_NMID,epsw
- movhu (DCR),d1
- or 0x0001, d1
- movhu d1,(DCR)
-
-99:
-#endif
- movm (sp),[d2,d3,a2,a3,exreg0,exreg1,exother]
-
- # must restore usp even if returning to kernel space,
- # when CONFIG_PREEMPT is enabled.
- mov (sp),a1 # USP in MOVM[other] dummy slot
- mov a1,usp
-
- movm (sp),[other]
- add 8,sp
- rti
-
-.endm
-
-
-#endif /* _ASM_FRAME_INC */
+++ /dev/null
-/* empty */
+++ /dev/null
-#include <asm-generic/futex.h>
+++ /dev/null
-/* MN10300 Kernel GDB stub definitions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- * - Derived from asm-mips/gdb-stub.h (c) 1995 Andreas Busse
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_GDB_STUB_H
-#define _ASM_GDB_STUB_H
-
-#include <asm/exceptions.h>
-
-/*
- * register ID numbers in GDB remote protocol
- */
-
-#define GDB_REGID_PC 9
-#define GDB_REGID_FP 7
-#define GDB_REGID_SP 8
-
-/*
- * virtual stack layout for the GDB exception handler
- */
-#define NUMREGS 64
-
-#define GDB_FR_D0 (0 * 4)
-#define GDB_FR_D1 (1 * 4)
-#define GDB_FR_D2 (2 * 4)
-#define GDB_FR_D3 (3 * 4)
-#define GDB_FR_A0 (4 * 4)
-#define GDB_FR_A1 (5 * 4)
-#define GDB_FR_A2 (6 * 4)
-#define GDB_FR_A3 (7 * 4)
-
-#define GDB_FR_SP (8 * 4)
-#define GDB_FR_PC (9 * 4)
-#define GDB_FR_MDR (10 * 4)
-#define GDB_FR_EPSW (11 * 4)
-#define GDB_FR_LIR (12 * 4)
-#define GDB_FR_LAR (13 * 4)
-#define GDB_FR_MDRQ (14 * 4)
-
-#define GDB_FR_E0 (15 * 4)
-#define GDB_FR_E1 (16 * 4)
-#define GDB_FR_E2 (17 * 4)
-#define GDB_FR_E3 (18 * 4)
-#define GDB_FR_E4 (19 * 4)
-#define GDB_FR_E5 (20 * 4)
-#define GDB_FR_E6 (21 * 4)
-#define GDB_FR_E7 (22 * 4)
-
-#define GDB_FR_SSP (23 * 4)
-#define GDB_FR_MSP (24 * 4)
-#define GDB_FR_USP (25 * 4)
-#define GDB_FR_MCRH (26 * 4)
-#define GDB_FR_MCRL (27 * 4)
-#define GDB_FR_MCVF (28 * 4)
-
-#define GDB_FR_FPCR (29 * 4)
-#define GDB_FR_DUMMY0 (30 * 4)
-#define GDB_FR_DUMMY1 (31 * 4)
-
-#define GDB_FR_FS0 (32 * 4)
-
-#define GDB_FR_SIZE (NUMREGS * 4)
-
-#ifndef __ASSEMBLY__
-
-/*
- * This is the same as above, but for the high-level
- * part of the GDB stub.
- */
-
-struct gdb_regs {
- /* saved main processor registers */
- u32 d0, d1, d2, d3, a0, a1, a2, a3;
- u32 sp, pc, mdr, epsw, lir, lar, mdrq;
- u32 e0, e1, e2, e3, e4, e5, e6, e7;
- u32 ssp, msp, usp, mcrh, mcrl, mcvf;
-
- /* saved floating point registers */
- u32 fpcr, _dummy0, _dummy1;
- u32 fs0, fs1, fs2, fs3, fs4, fs5, fs6, fs7;
- u32 fs8, fs9, fs10, fs11, fs12, fs13, fs14, fs15;
- u32 fs16, fs17, fs18, fs19, fs20, fs21, fs22, fs23;
- u32 fs24, fs25, fs26, fs27, fs28, fs29, fs30, fs31;
-};
-
-/*
- * Prototypes
- */
-extern void show_registers_only(struct pt_regs *regs);
-
-extern asmlinkage void gdbstub_init(void);
-extern asmlinkage void gdbstub_exit(int status);
-extern asmlinkage void gdbstub_io_init(void);
-extern asmlinkage void gdbstub_io_set_baud(unsigned baud);
-extern asmlinkage int gdbstub_io_rx_char(unsigned char *_ch, int nonblock);
-extern asmlinkage void gdbstub_io_tx_char(unsigned char ch);
-extern asmlinkage void gdbstub_io_tx_flush(void);
-
-extern asmlinkage void gdbstub_io_rx_handler(void);
-extern asmlinkage void gdbstub_rx_irq(struct pt_regs *, enum exception_code);
-extern asmlinkage int gdbstub_intercept(struct pt_regs *, enum exception_code);
-extern asmlinkage void gdbstub_exception(struct pt_regs *, enum exception_code);
-extern asmlinkage void __gdbstub_bug_trap(void);
-extern asmlinkage void __gdbstub_pause(void);
-
-#ifdef CONFIG_MN10300_CACHE_ENABLED
-extern asmlinkage void gdbstub_purge_cache(void);
-#else
-#define gdbstub_purge_cache() do {} while (0)
-#endif
-
-/* Used to prevent crashes in memory access */
-extern asmlinkage int gdbstub_read_byte(const u8 *, u8 *);
-extern asmlinkage int gdbstub_read_word(const u8 *, u8 *);
-extern asmlinkage int gdbstub_read_dword(const u8 *, u8 *);
-extern asmlinkage int gdbstub_write_byte(u32, u8 *);
-extern asmlinkage int gdbstub_write_word(u32, u8 *);
-extern asmlinkage int gdbstub_write_dword(u32, u8 *);
-
-extern asmlinkage void gdbstub_read_byte_guard(void);
-extern asmlinkage void gdbstub_read_byte_cont(void);
-extern asmlinkage void gdbstub_read_word_guard(void);
-extern asmlinkage void gdbstub_read_word_cont(void);
-extern asmlinkage void gdbstub_read_dword_guard(void);
-extern asmlinkage void gdbstub_read_dword_cont(void);
-extern asmlinkage void gdbstub_write_byte_guard(void);
-extern asmlinkage void gdbstub_write_byte_cont(void);
-extern asmlinkage void gdbstub_write_word_guard(void);
-extern asmlinkage void gdbstub_write_word_cont(void);
-extern asmlinkage void gdbstub_write_dword_guard(void);
-extern asmlinkage void gdbstub_write_dword_cont(void);
-
-extern u8 gdbstub_rx_buffer[PAGE_SIZE];
-extern u32 gdbstub_rx_inp;
-extern u32 gdbstub_rx_outp;
-extern u8 gdbstub_rx_overflow;
-extern u8 gdbstub_busy;
-extern u8 gdbstub_rx_unget;
-
-#ifdef CONFIG_GDBSTUB_DEBUGGING
-extern void gdbstub_printk(const char *fmt, ...)
- __attribute__((format(printf, 1, 2)));
-#else
-static inline __attribute__((format(printf, 1, 2)))
-void gdbstub_printk(const char *fmt, ...)
-{
-}
-#endif
-
-#ifdef CONFIG_GDBSTUB_DEBUG_ENTRY
-#define gdbstub_entry(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__)
-#else
-#define gdbstub_entry(FMT, ...) no_printk(FMT, ##__VA_ARGS__)
-#endif
-
-#ifdef CONFIG_GDBSTUB_DEBUG_PROTOCOL
-#define gdbstub_proto(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__)
-#else
-#define gdbstub_proto(FMT, ...) no_printk(FMT, ##__VA_ARGS__)
-#endif
-
-#ifdef CONFIG_GDBSTUB_DEBUG_IO
-#define gdbstub_io(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__)
-#else
-#define gdbstub_io(FMT, ...) no_printk(FMT, ##__VA_ARGS__)
-#endif
-
-#ifdef CONFIG_GDBSTUB_DEBUG_BREAKPOINT
-#define gdbstub_bkpt(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__)
-#else
-#define gdbstub_bkpt(FMT, ...) no_printk(FMT, ##__VA_ARGS__)
-#endif
-
-#endif /* !__ASSEMBLY__ */
-#endif /* _ASM_GDB_STUB_H */
+++ /dev/null
-/* MN10300 Hardware IRQ statistics and management
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Modified by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_HARDIRQ_H
-#define _ASM_HARDIRQ_H
-
-#include <linux/threads.h>
-#include <linux/irq.h>
-#include <asm/exceptions.h>
-
-/* assembly code in softirq.h is sensitive to the offsets of these fields */
-typedef struct {
- unsigned int __softirq_pending;
-#ifdef CONFIG_MN10300_WD_TIMER
- unsigned int __nmi_count; /* arch dependent */
- unsigned int __irq_count; /* arch dependent */
-#endif
-} ____cacheline_aligned irq_cpustat_t;
-
-#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
-
-extern void ack_bad_irq(int irq);
-
-/*
- * manipulate stubs in the MN10300 CPU Trap/Interrupt Vector table
- * - these should jump to __common_exception in entry.S unless there's a good
- * reason to do otherwise (see trap_preinit() in traps.c)
- */
-typedef void (*intr_stub_fnx)(struct pt_regs *regs,
- enum exception_code intcode);
-
-/*
- * manipulate pointers in the Exception table (see entry.S)
- * - these are indexed by decoding the lower 24 bits of the TBR register
- * - note that the MN103E010 doesn't always trap through the correct vector,
- * but does always set the TBR correctly
- */
-extern asmlinkage void set_excp_vector(enum exception_code code,
- intr_stub_fnx handler);
-
-#endif /* _ASM_HARDIRQ_H */
+++ /dev/null
-/* MN10300 Virtual kernel memory mappings for high memory
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- * - Derived from include/asm-i386/highmem.h
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_HIGHMEM_H
-#define _ASM_HIGHMEM_H
-
-#ifdef __KERNEL__
-
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/highmem.h>
-#include <asm/kmap_types.h>
-#include <asm/pgtable.h>
-
-/* undef for production */
-#undef HIGHMEM_DEBUG
-
-/* declarations for highmem.c */
-extern unsigned long highstart_pfn, highend_pfn;
-
-extern pte_t *kmap_pte;
-extern pgprot_t kmap_prot;
-extern pte_t *pkmap_page_table;
-
-extern void __init kmap_init(void);
-
-/*
- * Right now we initialize only a single pte table. It can be extended
- * easily, subsequent pte tables have to be allocated in one physical
- * chunk of RAM.
- */
-#define PKMAP_BASE 0xfe000000UL
-#define LAST_PKMAP 1024
-#define LAST_PKMAP_MASK (LAST_PKMAP - 1)
-#define PKMAP_NR(virt) ((virt - PKMAP_BASE) >> PAGE_SHIFT)
-#define PKMAP_ADDR(nr) (PKMAP_BASE + ((nr) << PAGE_SHIFT))
-
-extern unsigned long kmap_high(struct page *page);
-extern void kunmap_high(struct page *page);
-
-static inline unsigned long kmap(struct page *page)
-{
- if (in_interrupt())
- BUG();
- if (page < highmem_start_page)
- return page_address(page);
- return kmap_high(page);
-}
-
-static inline void kunmap(struct page *page)
-{
- if (in_interrupt())
- BUG();
- if (page < highmem_start_page)
- return;
- kunmap_high(page);
-}
-
-/*
- * The use of kmap_atomic/kunmap_atomic is discouraged - kmap/kunmap
- * gives a more generic (and caching) interface. But kmap_atomic can
- * be used in IRQ contexts, so in some (very limited) cases we need
- * it.
- */
-static inline void *kmap_atomic(struct page *page)
-{
- unsigned long vaddr;
- int idx, type;
-
- preempt_disable();
- pagefault_disable();
- if (page < highmem_start_page)
- return page_address(page);
-
- type = kmap_atomic_idx_push();
- idx = type + KM_TYPE_NR * smp_processor_id();
- vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
-#if HIGHMEM_DEBUG
- if (!pte_none(*(kmap_pte - idx)))
- BUG();
-#endif
- set_pte(kmap_pte - idx, mk_pte(page, kmap_prot));
- local_flush_tlb_one(vaddr);
-
- return (void *)vaddr;
-}
-
-static inline void __kunmap_atomic(unsigned long vaddr)
-{
- int type;
-
- if (vaddr < FIXADDR_START) { /* FIXME */
- pagefault_enable();
- preempt_enable();
- return;
- }
-
- type = kmap_atomic_idx();
-
-#if HIGHMEM_DEBUG
- {
- unsigned int idx;
- idx = type + KM_TYPE_NR * smp_processor_id();
-
- if (vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx))
- BUG();
-
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(kmap_pte - idx);
- local_flush_tlb_one(vaddr);
- }
-#endif
-
- kmap_atomic_idx_pop();
- pagefault_enable();
- preempt_enable();
-}
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_HIGHMEM_H */
+++ /dev/null
-/* MN10300 Hardware interrupt definitions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_HW_IRQ_H
-#define _ASM_HW_IRQ_H
-
-#endif /* _ASM_HW_IRQ_H */
+++ /dev/null
-/* MN10300 On-board interrupt controller registers
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_INTCTL_REGS_H
-#define _ASM_INTCTL_REGS_H
-
-#include <asm/cpu-regs.h>
-
-#ifdef __KERNEL__
-
-/*
- * Interrupt controller registers
- * - Registers 64-191 are at addresses offset from the main array
- */
-#define GxICR(X) \
- __SYSREG(0xd4000000 + (X) * 4 + \
- (((X) >= 64) && ((X) < 192)) * 0xf00, u16)
-
-#define GxICR_u8(X) \
- __SYSREG(0xd4000000 + (X) * 4 + \
- (((X) >= 64) && ((X) < 192)) * 0xf00, u8)
-
-#include <proc/intctl-regs.h>
-
-#define XIRQ_TRIGGER_LOWLEVEL 0
-#define XIRQ_TRIGGER_HILEVEL 1
-#define XIRQ_TRIGGER_NEGEDGE 2
-#define XIRQ_TRIGGER_POSEDGE 3
-
-/* non-maskable interrupt control */
-#define NMIIRQ 0
-#define NMICR GxICR(NMIIRQ) /* NMI control register */
-#define NMICR_NMIF 0x0001 /* NMI pin interrupt flag */
-#define NMICR_WDIF 0x0002 /* watchdog timer overflow flag */
-#define NMICR_ABUSERR 0x0008 /* async bus error flag */
-
-/* maskable interrupt control */
-#define GxICR_DETECT 0x0001 /* interrupt detect flag */
-#define GxICR_REQUEST 0x0010 /* interrupt request flag */
-#define GxICR_ENABLE 0x0100 /* interrupt enable flag */
-#define GxICR_LEVEL 0x7000 /* interrupt priority level */
-#define GxICR_LEVEL_0 0x0000 /* - level 0 */
-#define GxICR_LEVEL_1 0x1000 /* - level 1 */
-#define GxICR_LEVEL_2 0x2000 /* - level 2 */
-#define GxICR_LEVEL_3 0x3000 /* - level 3 */
-#define GxICR_LEVEL_4 0x4000 /* - level 4 */
-#define GxICR_LEVEL_5 0x5000 /* - level 5 */
-#define GxICR_LEVEL_6 0x6000 /* - level 6 */
-#define GxICR_LEVEL_SHIFT 12
-#define GxICR_NMI 0x8000 /* nmi request flag */
-
-#define NUM2GxICR_LEVEL(num) ((num) << GxICR_LEVEL_SHIFT)
-
-#ifndef __ASSEMBLY__
-extern void set_intr_level(int irq, u16 level);
-extern void mn10300_set_lateack_irq_type(int irq);
-#endif
-
-/* external interrupts */
-#define XIRQxICR(X) GxICR((X)) /* external interrupt control regs */
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_INTCTL_REGS_H */
+++ /dev/null
-/* MN10300 I/O port emulation and memory-mapped I/O
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_IO_H
-#define _ASM_IO_H
-
-#include <asm/page.h> /* I/O is all done through memory accesses */
-#include <asm/cpu-regs.h>
-#include <asm/cacheflush.h>
-#include <asm-generic/pci_iomap.h>
-
-#define mmiowb() do {} while (0)
-
-/*****************************************************************************/
-/*
- * readX/writeX() are used to access memory mapped devices. On some
- * architectures the memory mapped IO stuff needs to be accessed
- * differently. On the x86 architecture, we just read/write the
- * memory location directly.
- */
-static inline u8 readb(const volatile void __iomem *addr)
-{
- return *(const volatile u8 *) addr;
-}
-
-static inline u16 readw(const volatile void __iomem *addr)
-{
- return *(const volatile u16 *) addr;
-}
-
-static inline u32 readl(const volatile void __iomem *addr)
-{
- return *(const volatile u32 *) addr;
-}
-
-#define __raw_readb readb
-#define __raw_readw readw
-#define __raw_readl readl
-
-#define readb_relaxed readb
-#define readw_relaxed readw
-#define readl_relaxed readl
-
-static inline void writeb(u8 b, volatile void __iomem *addr)
-{
- *(volatile u8 *) addr = b;
-}
-
-static inline void writew(u16 b, volatile void __iomem *addr)
-{
- *(volatile u16 *) addr = b;
-}
-
-static inline void writel(u32 b, volatile void __iomem *addr)
-{
- *(volatile u32 *) addr = b;
-}
-
-#define __raw_writeb writeb
-#define __raw_writew writew
-#define __raw_writel writel
-
-#define writeb_relaxed writeb
-#define writew_relaxed writew
-#define writel_relaxed writel
-
-/*****************************************************************************/
-/*
- * traditional input/output functions
- */
-static inline u8 inb_local(unsigned long addr)
-{
- return readb((volatile void __iomem *) addr);
-}
-
-static inline void outb_local(u8 b, unsigned long addr)
-{
- return writeb(b, (volatile void __iomem *) addr);
-}
-
-static inline u8 inb(unsigned long addr)
-{
- return readb((volatile void __iomem *) addr);
-}
-
-static inline u16 inw(unsigned long addr)
-{
- return readw((volatile void __iomem *) addr);
-}
-
-static inline u32 inl(unsigned long addr)
-{
- return readl((volatile void __iomem *) addr);
-}
-
-static inline void outb(u8 b, unsigned long addr)
-{
- return writeb(b, (volatile void __iomem *) addr);
-}
-
-static inline void outw(u16 b, unsigned long addr)
-{
- return writew(b, (volatile void __iomem *) addr);
-}
-
-static inline void outl(u32 b, unsigned long addr)
-{
- return writel(b, (volatile void __iomem *) addr);
-}
-
-#define inb_p(addr) inb(addr)
-#define inw_p(addr) inw(addr)
-#define inl_p(addr) inl(addr)
-#define outb_p(x, addr) outb((x), (addr))
-#define outw_p(x, addr) outw((x), (addr))
-#define outl_p(x, addr) outl((x), (addr))
-
-static inline void insb(unsigned long addr, void *buffer, int count)
-{
- if (count) {
- u8 *buf = buffer;
- do {
- u8 x = inb(addr);
- *buf++ = x;
- } while (--count);
- }
-}
-
-static inline void insw(unsigned long addr, void *buffer, int count)
-{
- if (count) {
- u16 *buf = buffer;
- do {
- u16 x = inw(addr);
- *buf++ = x;
- } while (--count);
- }
-}
-
-static inline void insl(unsigned long addr, void *buffer, int count)
-{
- if (count) {
- u32 *buf = buffer;
- do {
- u32 x = inl(addr);
- *buf++ = x;
- } while (--count);
- }
-}
-
-static inline void outsb(unsigned long addr, const void *buffer, int count)
-{
- if (count) {
- const u8 *buf = buffer;
- do {
- outb(*buf++, addr);
- } while (--count);
- }
-}
-
-static inline void outsw(unsigned long addr, const void *buffer, int count)
-{
- if (count) {
- const u16 *buf = buffer;
- do {
- outw(*buf++, addr);
- } while (--count);
- }
-}
-
-extern void __outsl(unsigned long addr, const void *buffer, int count);
-static inline void outsl(unsigned long addr, const void *buffer, int count)
-{
- if ((unsigned long) buffer & 0x3)
- return __outsl(addr, buffer, count);
-
- if (count) {
- const u32 *buf = buffer;
- do {
- outl(*buf++, addr);
- } while (--count);
- }
-}
-
-#define ioread8(addr) readb(addr)
-#define ioread16(addr) readw(addr)
-#define ioread32(addr) readl(addr)
-
-#define iowrite8(v, addr) writeb((v), (addr))
-#define iowrite16(v, addr) writew((v), (addr))
-#define iowrite32(v, addr) writel((v), (addr))
-
-#define ioread16be(addr) be16_to_cpu(readw(addr))
-#define ioread32be(addr) be32_to_cpu(readl(addr))
-#define iowrite16be(v, addr) writew(cpu_to_be16(v), (addr))
-#define iowrite32be(v, addr) writel(cpu_to_be32(v), (addr))
-
-#define ioread8_rep(p, dst, count) \
- insb((unsigned long) (p), (dst), (count))
-#define ioread16_rep(p, dst, count) \
- insw((unsigned long) (p), (dst), (count))
-#define ioread32_rep(p, dst, count) \
- insl((unsigned long) (p), (dst), (count))
-
-#define iowrite8_rep(p, src, count) \
- outsb((unsigned long) (p), (src), (count))
-#define iowrite16_rep(p, src, count) \
- outsw((unsigned long) (p), (src), (count))
-#define iowrite32_rep(p, src, count) \
- outsl((unsigned long) (p), (src), (count))
-
-#define readsb(p, dst, count) \
- insb((unsigned long) (p), (dst), (count))
-#define readsw(p, dst, count) \
- insw((unsigned long) (p), (dst), (count))
-#define readsl(p, dst, count) \
- insl((unsigned long) (p), (dst), (count))
-
-#define writesb(p, src, count) \
- outsb((unsigned long) (p), (src), (count))
-#define writesw(p, src, count) \
- outsw((unsigned long) (p), (src), (count))
-#define writesl(p, src, count) \
- outsl((unsigned long) (p), (src), (count))
-
-#define IO_SPACE_LIMIT 0xffffffff
-
-#ifdef __KERNEL__
-
-#include <linux/vmalloc.h>
-#define __io_virt(x) ((void *) (x))
-
-/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
-struct pci_dev;
-static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
-{
-}
-
-/*
- * Change virtual addresses to physical addresses and vv.
- * These are pretty trivial
- */
-static inline unsigned long virt_to_phys(volatile void *address)
-{
- return __pa(address);
-}
-
-static inline void *phys_to_virt(unsigned long address)
-{
- return __va(address);
-}
-
-/*
- * Change "struct page" to physical address.
- */
-static inline void __iomem *__ioremap(unsigned long offset, unsigned long size,
- unsigned long flags)
-{
- return (void __iomem *) offset;
-}
-
-static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
-{
- return (void __iomem *)(offset & ~0x20000000);
-}
-
-/*
- * This one maps high address device memory and turns off caching for that
- * area. it's useful if some control registers are in such an area and write
- * combining or read caching is not desirable:
- */
-static inline void __iomem *ioremap_nocache(unsigned long offset, unsigned long size)
-{
- return (void __iomem *) (offset | 0x20000000);
-}
-
-#define ioremap_wc ioremap_nocache
-#define ioremap_wt ioremap_nocache
-#define ioremap_uc ioremap_nocache
-
-static inline void iounmap(void __iomem *addr)
-{
-}
-
-static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
-{
- return (void __iomem *) port;
-}
-
-static inline void ioport_unmap(void __iomem *p)
-{
-}
-
-#define xlate_dev_kmem_ptr(p) ((void *) (p))
-#define xlate_dev_mem_ptr(p) ((void *) (p))
-
-/*
- * PCI bus iomem addresses must be in the region 0x80000000-0x9fffffff
- */
-static inline unsigned long virt_to_bus(volatile void *address)
-{
- return ((unsigned long) address) & ~0x20000000;
-}
-
-static inline void *bus_to_virt(unsigned long address)
-{
- return (void *) address;
-}
-
-#define page_to_bus page_to_phys
-
-#define memset_io(a, b, c) memset(__io_virt(a), (b), (c))
-#define memcpy_fromio(a, b, c) memcpy((a), __io_virt(b), (c))
-#define memcpy_toio(a, b, c) memcpy(__io_virt(a), (b), (c))
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_IO_H */
+++ /dev/null
-/* MN10300 Hardware interrupt definitions
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Modified by David Howells (dhowells@redhat.com)
- * - Derived from include/asm-i386/irq.h:
- * - (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_IRQ_H
-#define _ASM_IRQ_H
-
-#include <asm/intctl-regs.h>
-#include <asm/reset-regs.h>
-#include <proc/irq.h>
-
-/* this number is used when no interrupt has been assigned */
-#define NO_IRQ INT_MAX
-
-/*
- * hardware irq numbers
- * - the ASB2364 has an FPGA with an IRQ multiplexer on it
- */
-#ifdef CONFIG_MN10300_UNIT_ASB2364
-#include <unit/irq.h>
-#else
-#define NR_CPU_IRQS GxICR_NUM_IRQS
-#define NR_IRQS NR_CPU_IRQS
-#endif
-
-/* external hardware irq numbers */
-#define NR_XIRQS GxICR_NUM_XIRQS
-
-#define irq_canonicalize(IRQ) (IRQ)
-
-#endif /* _ASM_IRQ_H */
+++ /dev/null
-/* MN10300 IRQ registers pointer definition
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_IRQ_REGS_H
-#define _ASM_IRQ_REGS_H
-
-/*
- * Per-cpu current frame pointer - the location of the last exception frame on
- * the stack
- */
-#define ARCH_HAS_OWN_IRQ_REGS
-
-#ifndef __ASSEMBLY__
-static inline __attribute__((const))
-struct pt_regs *get_irq_regs(void)
-{
- return current_frame();
-}
-#endif
-
-#endif /* _ASM_IRQ_REGS_H */
+++ /dev/null
-/* MN10300 IRQ flag handling
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_IRQFLAGS_H
-#define _ASM_IRQFLAGS_H
-
-#include <asm/cpu-regs.h>
-/* linux/smp.h <- linux/irqflags.h needs asm/smp.h first */
-#include <asm/smp.h>
-
-/*
- * interrupt control
- * - "disabled": run in IM1/2
- * - level 0 - kernel debugger
- * - level 1 - virtual serial DMA (if present)
- * - level 5 - normal interrupt priority
- * - level 6 - timer interrupt
- * - "enabled": run in IM7
- */
-#define MN10300_CLI_LEVEL (CONFIG_LINUX_CLI_LEVEL << EPSW_IM_SHIFT)
-
-#ifndef __ASSEMBLY__
-
-static inline unsigned long arch_local_save_flags(void)
-{
- unsigned long flags;
-
- asm volatile("mov epsw,%0" : "=d"(flags));
- return flags;
-}
-
-static inline void arch_local_irq_disable(void)
-{
- asm volatile(
- " and %0,epsw \n"
- " or %1,epsw \n"
- " nop \n"
- " nop \n"
- " nop \n"
- :
- : "i"(~EPSW_IM), "i"(EPSW_IE | MN10300_CLI_LEVEL)
- : "memory");
-}
-
-static inline unsigned long arch_local_irq_save(void)
-{
- unsigned long flags;
-
- flags = arch_local_save_flags();
- arch_local_irq_disable();
- return flags;
-}
-
-/*
- * we make sure arch_irq_enable() doesn't cause priority inversion
- */
-extern unsigned long __mn10300_irq_enabled_epsw[];
-
-static inline void arch_local_irq_enable(void)
-{
- unsigned long tmp;
- int cpu = raw_smp_processor_id();
-
- asm volatile(
- " mov epsw,%0 \n"
- " and %1,%0 \n"
- " or %2,%0 \n"
- " mov %0,epsw \n"
- : "=&d"(tmp)
- : "i"(~EPSW_IM), "r"(__mn10300_irq_enabled_epsw[cpu])
- : "memory", "cc");
-}
-
-static inline void arch_local_irq_restore(unsigned long flags)
-{
- asm volatile(
- " mov %0,epsw \n"
- " nop \n"
- " nop \n"
- " nop \n"
- :
- : "d"(flags)
- : "memory", "cc");
-}
-
-static inline bool arch_irqs_disabled_flags(unsigned long flags)
-{
- return (flags & (EPSW_IE | EPSW_IM)) != (EPSW_IE | EPSW_IM_7);
-}
-
-static inline bool arch_irqs_disabled(void)
-{
- return arch_irqs_disabled_flags(arch_local_save_flags());
-}
-
-/*
- * Hook to save power by halting the CPU
- * - called from the idle loop
- * - must reenable interrupts (which takes three instruction cycles to complete)
- */
-static inline void arch_safe_halt(void)
-{
-#ifdef CONFIG_SMP
- arch_local_irq_enable();
-#else
- asm volatile(
- " or %0,epsw \n"
- " nop \n"
- " nop \n"
- " bset %2,(%1) \n"
- :
- : "i"(EPSW_IE|EPSW_IM), "n"(&CPUM), "i"(CPUM_SLEEP)
- : "cc");
-#endif
-}
-
-#define __sleep_cpu() \
-do { \
- asm volatile( \
- " bset %1,(%0)\n" \
- "1: btst %1,(%0)\n" \
- " bne 1b\n" \
- : \
- : "i"(&CPUM), "i"(CPUM_SLEEP) \
- : "cc" \
- ); \
-} while (0)
-
-static inline void arch_local_cli(void)
-{
- asm volatile(
- " and %0,epsw \n"
- " nop \n"
- " nop \n"
- " nop \n"
- :
- : "i"(~EPSW_IE)
- : "memory"
- );
-}
-
-static inline unsigned long arch_local_cli_save(void)
-{
- unsigned long flags = arch_local_save_flags();
- arch_local_cli();
- return flags;
-}
-
-static inline void arch_local_sti(void)
-{
- asm volatile(
- " or %0,epsw \n"
- :
- : "i"(EPSW_IE)
- : "memory");
-}
-
-static inline void arch_local_change_intr_mask_level(unsigned long level)
-{
- asm volatile(
- " and %0,epsw \n"
- " or %1,epsw \n"
- :
- : "i"(~EPSW_IM), "i"(EPSW_IE | level)
- : "cc", "memory");
-}
-
-#else /* !__ASSEMBLY__ */
-
-#define LOCAL_SAVE_FLAGS(reg) \
- mov epsw,reg
-
-#define LOCAL_IRQ_DISABLE \
- and ~EPSW_IM,epsw; \
- or EPSW_IE|MN10300_CLI_LEVEL,epsw; \
- nop; \
- nop; \
- nop
-
-#define LOCAL_IRQ_ENABLE \
- or EPSW_IE|EPSW_IM_7,epsw
-
-#define LOCAL_IRQ_RESTORE(reg) \
- mov reg,epsw
-
-#define LOCAL_CLI_SAVE(reg) \
- mov epsw,reg; \
- and ~EPSW_IE,epsw; \
- nop; \
- nop; \
- nop
-
-#define LOCAL_CLI \
- and ~EPSW_IE,epsw; \
- nop; \
- nop; \
- nop
-
-#define LOCAL_STI \
- or EPSW_IE,epsw
-
-#define LOCAL_CHANGE_INTR_MASK_LEVEL(level) \
- and ~EPSW_IM,epsw; \
- or EPSW_IE|(level),epsw
-
-#endif /* __ASSEMBLY__ */
-#endif /* _ASM_IRQFLAGS_H */
+++ /dev/null
-/* MN10300 In-kernel death knells
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_KDEBUG_H
-#define _ASM_KDEBUG_H
-
-/* Grossly misnamed. */
-enum die_val {
- DIE_OOPS = 1,
- DIE_BREAKPOINT,
- DIE_GPF,
-};
-
-#endif /* _ASM_KDEBUG_H */
+++ /dev/null
-/* Kernel debugger for MN10300
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_KGDB_H
-#define _ASM_KGDB_H
-
-/*
- * BUFMAX defines the maximum number of characters in inbound/outbound
- * buffers at least NUMREGBYTES*2 are needed for register packets
- * Longer buffer is needed to list all threads
- */
-#define BUFMAX 1024
-
-/*
- * Note that this register image is in a different order than the register
- * image that Linux produces at interrupt time.
- */
-enum regnames {
- GDB_FR_D0 = 0,
- GDB_FR_D1 = 1,
- GDB_FR_D2 = 2,
- GDB_FR_D3 = 3,
- GDB_FR_A0 = 4,
- GDB_FR_A1 = 5,
- GDB_FR_A2 = 6,
- GDB_FR_A3 = 7,
-
- GDB_FR_SP = 8,
- GDB_FR_PC = 9,
- GDB_FR_MDR = 10,
- GDB_FR_EPSW = 11,
- GDB_FR_LIR = 12,
- GDB_FR_LAR = 13,
- GDB_FR_MDRQ = 14,
-
- GDB_FR_E0 = 15,
- GDB_FR_E1 = 16,
- GDB_FR_E2 = 17,
- GDB_FR_E3 = 18,
- GDB_FR_E4 = 19,
- GDB_FR_E5 = 20,
- GDB_FR_E6 = 21,
- GDB_FR_E7 = 22,
-
- GDB_FR_SSP = 23,
- GDB_FR_MSP = 24,
- GDB_FR_USP = 25,
- GDB_FR_MCRH = 26,
- GDB_FR_MCRL = 27,
- GDB_FR_MCVF = 28,
-
- GDB_FR_FPCR = 29,
- GDB_FR_DUMMY0 = 30,
- GDB_FR_DUMMY1 = 31,
-
- GDB_FR_FS0 = 32,
-
- GDB_FR_SIZE = 64,
-};
-
-#define GDB_ORIG_D0 41
-#define NUMREGBYTES (GDB_FR_SIZE*4)
-
-static inline void arch_kgdb_breakpoint(void)
-{
- asm(".globl __arch_kgdb_breakpoint; __arch_kgdb_breakpoint: break");
-}
-extern u8 __arch_kgdb_breakpoint;
-
-#define BREAK_INSTR_SIZE 1
-#define CACHE_FLUSH_IS_SAFE 1
-
-#endif /* _ASM_KGDB_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_KMAP_TYPES_H
-#define _ASM_KMAP_TYPES_H
-
-#include <asm-generic/kmap_types.h>
-
-#endif /* _ASM_KMAP_TYPES_H */
+++ /dev/null
-/* MN10300 Kernel Probes support
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by Mark Salter (msalter@redhat.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public Licence as published by
- * the Free Software Foundation; either version 2 of the Licence, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public Licence for more details.
- *
- * You should have received a copy of the GNU General Public Licence
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- */
-#ifndef _ASM_KPROBES_H
-#define _ASM_KPROBES_H
-
-#include <asm-generic/kprobes.h>
-
-#define BREAKPOINT_INSTRUCTION 0xff
-
-#ifdef CONFIG_KPROBES
-#include <linux/types.h>
-#include <linux/ptrace.h>
-
-struct kprobe;
-
-typedef unsigned char kprobe_opcode_t;
-#define MAX_INSN_SIZE 8
-#define MAX_STACK_SIZE 128
-
-/* Architecture specific copy of original instruction */
-struct arch_specific_insn {
- /* copy of original instruction
- */
- kprobe_opcode_t insn[MAX_INSN_SIZE];
-};
-
-extern const int kretprobe_blacklist_size;
-
-extern int kprobe_exceptions_notify(struct notifier_block *self,
- unsigned long val, void *data);
-
-#define flush_insn_slot(p) do {} while (0)
-
-extern void arch_remove_kprobe(struct kprobe *p);
-
-#endif /* CONFIG_KPROBES */
-#endif /* _ASM_KPROBES_H */
+++ /dev/null
-/* MN10300 Linkage and calling-convention overrides
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_LINKAGE_H
-#define _ASM_LINKAGE_H
-
-/* don't override anything */
-#define asmlinkage
-
-#define __ALIGN .align 4,0xcb
-#define __ALIGN_STR ".align 4,0xcb"
-
-#endif
+++ /dev/null
-#include <asm-generic/local.h>
+++ /dev/null
-#include <asm-generic/local64.h>
+++ /dev/null
-#include <asm/rtc-regs.h>
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-/* MN10300 Memory management context
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- * - Derived from include/asm-frv/mmu.h
- */
-
-#ifndef _ASM_MMU_H
-#define _ASM_MMU_H
-
-/*
- * MMU context
- */
-typedef struct {
- unsigned long tlbpid[NR_CPUS]; /* TLB PID for this process on
- * each CPU */
-} mm_context_t;
-
-#endif /* _ASM_MMU_H */
+++ /dev/null
-/* MN10300 MMU context management
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Modified by David Howells (dhowells@redhat.com)
- * - Derived from include/asm-m32r/mmu_context.h
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- *
- *
- * This implements an algorithm to provide TLB PID mappings to provide
- * selective access to the TLB for processes, thus reducing the number of TLB
- * flushes required.
- *
- * Note, however, that the M32R algorithm is technically broken as it does not
- * handle version wrap-around, and could, theoretically, have a problem with a
- * very long lived program that sleeps long enough for the version number to
- * wrap all the way around so that its TLB mappings appear valid once again.
- */
-#ifndef _ASM_MMU_CONTEXT_H
-#define _ASM_MMU_CONTEXT_H
-
-#include <linux/atomic.h>
-#include <linux/mm_types.h>
-
-#include <asm/pgalloc.h>
-#include <asm/tlbflush.h>
-#include <asm-generic/mm_hooks.h>
-
-#define MMU_CONTEXT_TLBPID_NR 256
-#define MMU_CONTEXT_TLBPID_MASK 0x000000ffUL
-#define MMU_CONTEXT_VERSION_MASK 0xffffff00UL
-#define MMU_CONTEXT_FIRST_VERSION 0x00000100UL
-#define MMU_NO_CONTEXT 0x00000000UL
-#define MMU_CONTEXT_TLBPID_LOCK_NR 0
-
-#define enter_lazy_tlb(mm, tsk) do {} while (0)
-
-static inline void cpu_ran_vm(int cpu, struct mm_struct *mm)
-{
-#ifdef CONFIG_SMP
- cpumask_set_cpu(cpu, mm_cpumask(mm));
-#endif
-}
-
-static inline bool cpu_maybe_ran_vm(int cpu, struct mm_struct *mm)
-{
-#ifdef CONFIG_SMP
- return cpumask_test_and_set_cpu(cpu, mm_cpumask(mm));
-#else
- return true;
-#endif
-}
-
-#ifdef CONFIG_MN10300_TLB_USE_PIDR
-extern unsigned long mmu_context_cache[NR_CPUS];
-#define mm_context(mm) (mm->context.tlbpid[smp_processor_id()])
-
-/**
- * allocate_mmu_context - Allocate storage for the arch-specific MMU data
- * @mm: The userspace VM context being set up
- */
-static inline unsigned long allocate_mmu_context(struct mm_struct *mm)
-{
- unsigned long *pmc = &mmu_context_cache[smp_processor_id()];
- unsigned long mc = ++(*pmc);
-
- if (!(mc & MMU_CONTEXT_TLBPID_MASK)) {
- /* we exhausted the TLB PIDs of this version on this CPU, so we
- * flush this CPU's TLB in its entirety and start new cycle */
- local_flush_tlb_all();
-
- /* fix the TLB version if needed (we avoid version #0 so as to
- * distinguish MMU_NO_CONTEXT) */
- if (!mc)
- *pmc = mc = MMU_CONTEXT_FIRST_VERSION;
- }
- mm_context(mm) = mc;
- return mc;
-}
-
-/*
- * get an MMU context if one is needed
- */
-static inline unsigned long get_mmu_context(struct mm_struct *mm)
-{
- unsigned long mc = MMU_NO_CONTEXT, cache;
-
- if (mm) {
- cache = mmu_context_cache[smp_processor_id()];
- mc = mm_context(mm);
-
- /* if we have an old version of the context, replace it */
- if ((mc ^ cache) & MMU_CONTEXT_VERSION_MASK)
- mc = allocate_mmu_context(mm);
- }
- return mc;
-}
-
-/*
- * initialise the context related info for a new mm_struct instance
- */
-static inline int init_new_context(struct task_struct *tsk,
- struct mm_struct *mm)
-{
- int num_cpus = NR_CPUS, i;
-
- for (i = 0; i < num_cpus; i++)
- mm->context.tlbpid[i] = MMU_NO_CONTEXT;
- return 0;
-}
-
-/*
- * after we have set current->mm to a new value, this activates the context for
- * the new mm so we see the new mappings.
- */
-static inline void activate_context(struct mm_struct *mm)
-{
- PIDR = get_mmu_context(mm) & MMU_CONTEXT_TLBPID_MASK;
-}
-#else /* CONFIG_MN10300_TLB_USE_PIDR */
-
-#define init_new_context(tsk, mm) (0)
-#define activate_context(mm) local_flush_tlb()
-
-#endif /* CONFIG_MN10300_TLB_USE_PIDR */
-
-/**
- * destroy_context - Destroy mm context information
- * @mm: The MM being destroyed.
- *
- * Destroy context related info for an mm_struct that is about to be put to
- * rest
- */
-#define destroy_context(mm) do {} while (0)
-
-/**
- * switch_mm - Change between userspace virtual memory contexts
- * @prev: The outgoing MM context.
- * @next: The incoming MM context.
- * @tsk: The incoming task.
- */
-static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
- struct task_struct *tsk)
-{
- int cpu = smp_processor_id();
-
- if (prev != next) {
-#ifdef CONFIG_SMP
- per_cpu(cpu_tlbstate, cpu).active_mm = next;
-#endif
- cpu_ran_vm(cpu, next);
- PTBR = (unsigned long) next->pgd;
- activate_context(next);
- }
-}
-
-#define deactivate_mm(tsk, mm) do {} while (0)
-#define activate_mm(prev, next) switch_mm((prev), (next), NULL)
-
-#endif /* _ASM_MMU_CONTEXT_H */
+++ /dev/null
-/* MN10300 Arch-specific module definitions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by Mark Salter (msalter@redhat.com)
- * Derived from include/asm-i386/module.h
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_MODULE_H
-#define _ASM_MODULE_H
-
-#include <asm-generic/module.h>
-
-/*
- * Include the MN10300 architecture version.
- */
-#define MODULE_ARCH_VERMAGIC __stringify(PROCESSOR_MODEL_NAME) " "
-
-#endif /* _ASM_MODULE_H */
+++ /dev/null
-/* MN10300 NMI handling
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_NMI_H
-#define _ASM_NMI_H
-
-extern void arch_touch_nmi_watchdog(void);
-
-#endif /* _ASM_NMI_H */
+++ /dev/null
-/* MN10300 Page table definitions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_PAGE_H
-#define _ASM_PAGE_H
-
-/* PAGE_SHIFT determines the page size */
-#define PAGE_SHIFT 12
-
-#ifndef __ASSEMBLY__
-#define PAGE_SIZE (1UL << PAGE_SHIFT)
-#define PAGE_MASK (~(PAGE_SIZE - 1))
-#else
-#define PAGE_SIZE +(1 << PAGE_SHIFT) /* unary plus marks an
- * immediate val not an addr */
-#define PAGE_MASK +(~(PAGE_SIZE - 1))
-#endif
-
-#ifdef __KERNEL__
-#ifndef __ASSEMBLY__
-
-#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
-#define copy_page(to, from) memcpy((void *)(to), (void *)(from), PAGE_SIZE)
-
-#define clear_user_page(addr, vaddr, page) clear_page(addr)
-#define copy_user_page(vto, vfrom, vaddr, to) copy_page(vto, vfrom)
-
-/*
- * These are used to make use of C type-checking..
- */
-typedef struct { unsigned long pte; } pte_t;
-typedef struct { unsigned long pgd; } pgd_t;
-typedef struct { unsigned long pgprot; } pgprot_t;
-typedef struct page *pgtable_t;
-
-#define PTE_MASK PAGE_MASK
-#define HPAGE_SHIFT 22
-
-#ifdef CONFIG_HUGETLB_PAGE
-#define HPAGE_SIZE ((1UL) << HPAGE_SHIFT)
-#define HPAGE_MASK (~(HPAGE_SIZE - 1))
-#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
-#endif
-
-#define pte_val(x) ((x).pte)
-#define pgd_val(x) ((x).pgd)
-#define pgprot_val(x) ((x).pgprot)
-
-#define __pte(x) ((pte_t) { (x) })
-#define __pgd(x) ((pgd_t) { (x) })
-#define __pgprot(x) ((pgprot_t) { (x) })
-
-#define __ARCH_USE_5LEVEL_HACK
-#include <asm-generic/pgtable-nopmd.h>
-
-#endif /* !__ASSEMBLY__ */
-
-/*
- * This handles the memory map.. We could make this a config
- * option, but too many people screw it up, and too few need
- * it.
- *
- * A __PAGE_OFFSET of 0xC0000000 means that the kernel has
- * a virtual address space of one gigabyte, which limits the
- * amount of physical memory you can use to about 950MB.
- */
-
-#ifndef __ASSEMBLY__
-
-/* Pure 2^n version of get_order */
-static inline int get_order(unsigned long size) __attribute__((const));
-static inline int get_order(unsigned long size)
-{
- int order;
-
- size = (size - 1) >> (PAGE_SHIFT - 1);
- order = -1;
- do {
- size >>= 1;
- order++;
- } while (size);
- return order;
-}
-
-#endif /* __ASSEMBLY__ */
-
-#include <asm/page_offset.h>
-
-#define __PAGE_OFFSET (PAGE_OFFSET_RAW)
-#define PAGE_OFFSET ((unsigned long) __PAGE_OFFSET)
-
-/*
- * main RAM and kernel working space are coincident at 0x90000000, but to make
- * life more interesting, there's also an uncached virtual shadow at 0xb0000000
- * - these mappings are fixed in the MMU
- */
-#define __pfn_disp (CONFIG_KERNEL_RAM_BASE_ADDRESS >> PAGE_SHIFT)
-
-#define __pa(x) ((unsigned long)(x))
-#define __va(x) ((void *)(unsigned long)(x))
-#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
-#define pfn_to_page(pfn) (mem_map + ((pfn) - __pfn_disp))
-#define page_to_pfn(page) ((unsigned long)((page) - mem_map) + __pfn_disp)
-#define __pfn_to_phys(pfn) PFN_PHYS(pfn)
-
-#define pfn_valid(pfn) \
-({ \
- unsigned long __pfn = (pfn) - __pfn_disp; \
- __pfn < max_mapnr; \
-})
-
-#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
-#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
-#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
-
-#define VM_DATA_DEFAULT_FLAGS \
- (VM_READ | VM_WRITE | \
- ((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_PAGE_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-/* MN10300 Kernel base address
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- */
-#ifndef _ASM_PAGE_OFFSET_H
-#define _ASM_PAGE_OFFSET_H
-
-#define PAGE_OFFSET_RAW CONFIG_KERNEL_RAM_BASE_ADDRESS
-
-#endif
+++ /dev/null
-/* MN10300 PCI definitions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_PCI_H
-#define _ASM_PCI_H
-
-#ifdef __KERNEL__
-#include <linux/mm.h> /* for struct page */
-
-#if 0
-#define __pcbdebug(FMT, ADDR, ...) \
- printk(KERN_DEBUG "PCIBRIDGE[%08x]: "FMT"\n", \
- (u32)(ADDR), ##__VA_ARGS__)
-
-#define __pcidebug(FMT, BUS, DEVFN, WHERE,...) \
-do { \
- printk(KERN_DEBUG "PCI[%02x:%02x.%x + %02x]: "FMT"\n", \
- (BUS)->number, \
- PCI_SLOT(DEVFN), \
- PCI_FUNC(DEVFN), \
- (u32)(WHERE), ##__VA_ARGS__); \
-} while (0)
-
-#else
-#define __pcbdebug(FMT, ADDR, ...) do {} while (0)
-#define __pcidebug(FMT, BUS, DEVFN, WHERE, ...) do {} while (0)
-#endif
-
-/* Can be used to override the logic in pci_scan_bus for skipping
- * already-configured bus numbers - to be used for buggy BIOSes or
- * architectures with incomplete PCI setup by the loader */
-
-#ifdef CONFIG_PCI
-#define pcibios_assign_all_busses() 1
-extern void unit_pci_init(void);
-#else
-#define pcibios_assign_all_busses() 0
-#endif
-
-#define PCIBIOS_MIN_IO 0xBE000004
-#define PCIBIOS_MIN_MEM 0xB8000000
-
-/* Dynamic DMA mapping stuff.
- * i386 has everything mapped statically.
- */
-
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/scatterlist.h>
-#include <linux/string.h>
-#include <asm/io.h>
-
-/* The PCI address space does equal the physical memory
- * address space. The networking and block device layers use
- * this boolean for bounce buffer decisions.
- */
-#define PCI_DMA_BUS_IS_PHYS (1)
-
-/* Return the index of the PCI controller for device. */
-static inline int pci_controller_num(struct pci_dev *dev)
-{
- return 0;
-}
-
-#define HAVE_PCI_MMAP
-#define ARCH_GENERIC_PCI_MMAP_RESOURCE
-
-#endif /* __KERNEL__ */
-
-static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
-{
- return channel ? 15 : 14;
-}
-
-#include <asm-generic/pci_iomap.h>
-
-#endif /* _ASM_PCI_H */
+++ /dev/null
-#include <asm-generic/percpu.h>
+++ /dev/null
-/* MN10300 Page and page table/directory allocation
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_PGALLOC_H
-#define _ASM_PGALLOC_H
-
-#include <asm/page.h>
-#include <linux/threads.h>
-#include <linux/mm.h> /* for struct page */
-
-struct mm_struct;
-struct page;
-
-/* attach a page table to a PMD entry */
-#define pmd_populate_kernel(mm, pmd, pte) \
- set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE))
-
-static inline
-void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *pte)
-{
- set_pmd(pmd, __pmd((page_to_pfn(pte) << PAGE_SHIFT) | _PAGE_TABLE));
-}
-#define pmd_pgtable(pmd) pmd_page(pmd)
-
-/*
- * Allocate and free page tables.
- */
-
-extern pgd_t *pgd_alloc(struct mm_struct *);
-extern void pgd_free(struct mm_struct *, pgd_t *);
-
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
-extern struct page *pte_alloc_one(struct mm_struct *, unsigned long);
-
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-{
- free_page((unsigned long) pte);
-}
-
-static inline void pte_free(struct mm_struct *mm, struct page *pte)
-{
- pgtable_page_dtor(pte);
- __free_page(pte);
-}
-
-
-#define __pte_free_tlb(tlb, pte, addr) tlb_remove_page((tlb), (pte))
-
-#endif /* _ASM_PGALLOC_H */
+++ /dev/null
-/* MN10300 Page table manipulators and constants
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- *
- *
- * The Linux memory management assumes a three-level page table setup. On
- * the i386, we use that, but "fold" the mid level into the top-level page
- * table, so that we physically have the same two-level page table as the
- * i386 mmu expects.
- *
- * This file contains the functions and defines necessary to modify and use
- * the i386 page table tree for the purposes of the MN10300 TLB handler
- * functions.
- */
-#ifndef _ASM_PGTABLE_H
-#define _ASM_PGTABLE_H
-
-#include <asm/cpu-regs.h>
-
-#ifndef __ASSEMBLY__
-#include <asm/processor.h>
-#include <asm/cache.h>
-#include <linux/threads.h>
-
-#include <asm/bitops.h>
-
-#include <linux/slab.h>
-#include <linux/list.h>
-#include <linux/spinlock.h>
-
-/*
- * ZERO_PAGE is a global shared page that is always zero: used
- * for zero-mapped memory areas etc..
- */
-#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
-extern unsigned long empty_zero_page[1024];
-extern spinlock_t pgd_lock;
-extern struct page *pgd_list;
-
-extern void pmd_ctor(void *, struct kmem_cache *, unsigned long);
-extern void pgtable_cache_init(void);
-extern void paging_init(void);
-
-#endif /* !__ASSEMBLY__ */
-
-/*
- * The Linux mn10300 paging architecture only implements both the traditional
- * 2-level page tables
- */
-#define PGDIR_SHIFT 22
-#define PTRS_PER_PGD 1024
-#define PTRS_PER_PUD 1 /* we don't really have any PUD physically */
-#define __PAGETABLE_PUD_FOLDED
-#define PTRS_PER_PMD 1 /* we don't really have any PMD physically */
-#define __PAGETABLE_PMD_FOLDED
-#define PTRS_PER_PTE 1024
-
-#define PGD_SIZE PAGE_SIZE
-#define PMD_SIZE (1UL << PMD_SHIFT)
-#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
-#define PGDIR_MASK (~(PGDIR_SIZE - 1))
-
-#define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE)
-#define FIRST_USER_ADDRESS 0UL
-
-#define USER_PGD_PTRS (PAGE_OFFSET >> PGDIR_SHIFT)
-#define KERNEL_PGD_PTRS (PTRS_PER_PGD - USER_PGD_PTRS)
-
-#define TWOLEVEL_PGDIR_SHIFT 22
-#define BOOT_USER_PGD_PTRS (__PAGE_OFFSET >> TWOLEVEL_PGDIR_SHIFT)
-#define BOOT_KERNEL_PGD_PTRS (1024 - BOOT_USER_PGD_PTRS)
-
-#ifndef __ASSEMBLY__
-extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
-#endif
-
-/*
- * Unfortunately, due to the way the MMU works on the MN10300, the vmalloc VM
- * area has to be in the lower half of the virtual address range (the upper
- * half is not translated through the TLB).
- *
- * So in this case, the vmalloc area goes at the bottom of the address map
- * (leaving a hole at the very bottom to catch addressing errors), and
- * userspace starts immediately above.
- *
- * The vmalloc() routines also leaves a hole of 4kB between each vmalloced
- * area to catch addressing errors.
- */
-#ifndef __ASSEMBLY__
-#define VMALLOC_OFFSET (8UL * 1024 * 1024)
-#define VMALLOC_START (0x70000000UL)
-#define VMALLOC_END (0x7C000000UL)
-#else
-#define VMALLOC_OFFSET (8 * 1024 * 1024)
-#define VMALLOC_START (0x70000000)
-#define VMALLOC_END (0x7C000000)
-#endif
-
-#ifndef __ASSEMBLY__
-extern pte_t kernel_vmalloc_ptes[(VMALLOC_END - VMALLOC_START) / PAGE_SIZE];
-#endif
-
-/* IPTEL2/DPTEL2 bit assignments */
-#define _PAGE_BIT_VALID xPTEL2_V_BIT
-#define _PAGE_BIT_CACHE xPTEL2_C_BIT
-#define _PAGE_BIT_PRESENT xPTEL2_PV_BIT
-#define _PAGE_BIT_DIRTY xPTEL2_D_BIT
-#define _PAGE_BIT_GLOBAL xPTEL2_G_BIT
-#define _PAGE_BIT_ACCESSED xPTEL2_UNUSED1_BIT /* mustn't be loaded into IPTEL2/DPTEL2 */
-
-#define _PAGE_VALID xPTEL2_V
-#define _PAGE_CACHE xPTEL2_C
-#define _PAGE_PRESENT xPTEL2_PV
-#define _PAGE_DIRTY xPTEL2_D
-#define _PAGE_PROT xPTEL2_PR
-#define _PAGE_PROT_RKNU xPTEL2_PR_ROK
-#define _PAGE_PROT_WKNU xPTEL2_PR_RWK
-#define _PAGE_PROT_RKRU xPTEL2_PR_ROK_ROU
-#define _PAGE_PROT_WKRU xPTEL2_PR_RWK_ROU
-#define _PAGE_PROT_WKWU xPTEL2_PR_RWK_RWU
-#define _PAGE_GLOBAL xPTEL2_G
-#define _PAGE_PS_MASK xPTEL2_PS
-#define _PAGE_PS_4Kb xPTEL2_PS_4Kb
-#define _PAGE_PS_128Kb xPTEL2_PS_128Kb
-#define _PAGE_PS_1Kb xPTEL2_PS_1Kb
-#define _PAGE_PS_4Mb xPTEL2_PS_4Mb
-#define _PAGE_PSE xPTEL2_PS_4Mb /* 4MB page */
-#define _PAGE_CACHE_WT xPTEL2_CWT
-#define _PAGE_ACCESSED xPTEL2_UNUSED1
-#define _PAGE_NX 0 /* no-execute bit */
-
-/* If _PAGE_VALID is clear, we use these: */
-#define _PAGE_PROTNONE 0x000 /* If not present */
-
-#define __PAGE_PROT_UWAUX 0x010
-#define __PAGE_PROT_USER 0x020
-#define __PAGE_PROT_WRITE 0x040
-
-#define _PAGE_PRESENTV (_PAGE_PRESENT|_PAGE_VALID)
-
-#ifndef __ASSEMBLY__
-
-#define VMALLOC_VMADDR(x) ((unsigned long)(x))
-
-#define _PAGE_TABLE (_PAGE_PRESENTV | _PAGE_PROT_WKNU | _PAGE_ACCESSED | _PAGE_DIRTY)
-#define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
-
-#define __PAGE_NONE (_PAGE_PRESENTV | _PAGE_PROT_RKNU | _PAGE_ACCESSED | _PAGE_CACHE)
-#define __PAGE_SHARED (_PAGE_PRESENTV | _PAGE_PROT_WKWU | _PAGE_ACCESSED | _PAGE_CACHE)
-#define __PAGE_COPY (_PAGE_PRESENTV | _PAGE_PROT_RKRU | _PAGE_ACCESSED | _PAGE_CACHE)
-#define __PAGE_READONLY (_PAGE_PRESENTV | _PAGE_PROT_RKRU | _PAGE_ACCESSED | _PAGE_CACHE)
-
-#define PAGE_NONE __pgprot(__PAGE_NONE | _PAGE_NX)
-#define PAGE_SHARED_NOEXEC __pgprot(__PAGE_SHARED | _PAGE_NX)
-#define PAGE_COPY_NOEXEC __pgprot(__PAGE_COPY | _PAGE_NX)
-#define PAGE_READONLY_NOEXEC __pgprot(__PAGE_READONLY | _PAGE_NX)
-#define PAGE_SHARED_EXEC __pgprot(__PAGE_SHARED)
-#define PAGE_COPY_EXEC __pgprot(__PAGE_COPY)
-#define PAGE_READONLY_EXEC __pgprot(__PAGE_READONLY)
-#define PAGE_COPY PAGE_COPY_NOEXEC
-#define PAGE_READONLY PAGE_READONLY_NOEXEC
-#define PAGE_SHARED PAGE_SHARED_EXEC
-
-#define __PAGE_KERNEL_BASE (_PAGE_PRESENTV | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
-
-#define __PAGE_KERNEL (__PAGE_KERNEL_BASE | _PAGE_PROT_WKNU | _PAGE_CACHE | _PAGE_NX)
-#define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL_BASE | _PAGE_PROT_WKNU | _PAGE_NX)
-#define __PAGE_KERNEL_EXEC (__PAGE_KERNEL & ~_PAGE_NX)
-#define __PAGE_KERNEL_RO (__PAGE_KERNEL_BASE | _PAGE_PROT_RKNU | _PAGE_CACHE | _PAGE_NX)
-#define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
-#define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE)
-
-#define PAGE_KERNEL __pgprot(__PAGE_KERNEL)
-#define PAGE_KERNEL_RO __pgprot(__PAGE_KERNEL_RO)
-#define PAGE_KERNEL_EXEC __pgprot(__PAGE_KERNEL_EXEC)
-#define PAGE_KERNEL_NOCACHE __pgprot(__PAGE_KERNEL_NOCACHE)
-#define PAGE_KERNEL_LARGE __pgprot(__PAGE_KERNEL_LARGE)
-#define PAGE_KERNEL_LARGE_EXEC __pgprot(__PAGE_KERNEL_LARGE_EXEC)
-
-#define __PAGE_USERIO (__PAGE_KERNEL_BASE | _PAGE_PROT_WKWU | _PAGE_NX)
-#define PAGE_USERIO __pgprot(__PAGE_USERIO)
-
-/*
- * Whilst the MN10300 can do page protection for execute (given separate data
- * and insn TLBs), we are not supporting it at the moment. Write permission,
- * however, always implies read permission (but not execute permission).
- */
-#define __P000 PAGE_NONE
-#define __P001 PAGE_READONLY_NOEXEC
-#define __P010 PAGE_COPY_NOEXEC
-#define __P011 PAGE_COPY_NOEXEC
-#define __P100 PAGE_READONLY_EXEC
-#define __P101 PAGE_READONLY_EXEC
-#define __P110 PAGE_COPY_EXEC
-#define __P111 PAGE_COPY_EXEC
-
-#define __S000 PAGE_NONE
-#define __S001 PAGE_READONLY_NOEXEC
-#define __S010 PAGE_SHARED_NOEXEC
-#define __S011 PAGE_SHARED_NOEXEC
-#define __S100 PAGE_READONLY_EXEC
-#define __S101 PAGE_READONLY_EXEC
-#define __S110 PAGE_SHARED_EXEC
-#define __S111 PAGE_SHARED_EXEC
-
-/*
- * Define this to warn about kernel memory accesses that are
- * done without a 'verify_area(VERIFY_WRITE,..)'
- */
-#undef TEST_VERIFY_AREA
-
-#define pte_present(x) (pte_val(x) & _PAGE_VALID)
-#define pte_clear(mm, addr, xp) \
-do { \
- set_pte_at((mm), (addr), (xp), __pte(0)); \
-} while (0)
-
-#define pmd_none(x) (!pmd_val(x))
-#define pmd_present(x) (!pmd_none(x))
-#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0)
-#define pmd_bad(x) 0
-
-
-#define pages_to_mb(x) ((x) >> (20 - PAGE_SHIFT))
-
-#ifndef __ASSEMBLY__
-
-/*
- * The following only work if pte_present() is true.
- * Undefined behaviour if not..
- */
-static inline int pte_user(pte_t pte) { return pte_val(pte) & __PAGE_PROT_USER; }
-static inline int pte_read(pte_t pte) { return pte_val(pte) & __PAGE_PROT_USER; }
-static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; }
-static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }
-static inline int pte_write(pte_t pte) { return pte_val(pte) & __PAGE_PROT_WRITE; }
-static inline int pte_special(pte_t pte){ return 0; }
-
-static inline pte_t pte_rdprotect(pte_t pte)
-{
- pte_val(pte) &= ~(__PAGE_PROT_USER|__PAGE_PROT_UWAUX); return pte;
-}
-static inline pte_t pte_exprotect(pte_t pte)
-{
- pte_val(pte) |= _PAGE_NX; return pte;
-}
-
-static inline pte_t pte_wrprotect(pte_t pte)
-{
- pte_val(pte) &= ~(__PAGE_PROT_WRITE|__PAGE_PROT_UWAUX); return pte;
-}
-
-static inline pte_t pte_mkclean(pte_t pte) { pte_val(pte) &= ~_PAGE_DIRTY; return pte; }
-static inline pte_t pte_mkold(pte_t pte) { pte_val(pte) &= ~_PAGE_ACCESSED; return pte; }
-static inline pte_t pte_mkdirty(pte_t pte) { pte_val(pte) |= _PAGE_DIRTY; return pte; }
-static inline pte_t pte_mkyoung(pte_t pte) { pte_val(pte) |= _PAGE_ACCESSED; return pte; }
-static inline pte_t pte_mkexec(pte_t pte) { pte_val(pte) &= ~_PAGE_NX; return pte; }
-
-static inline pte_t pte_mkread(pte_t pte)
-{
- pte_val(pte) |= __PAGE_PROT_USER;
- if (pte_write(pte))
- pte_val(pte) |= __PAGE_PROT_UWAUX;
- return pte;
-}
-static inline pte_t pte_mkwrite(pte_t pte)
-{
- pte_val(pte) |= __PAGE_PROT_WRITE;
- if (pte_val(pte) & __PAGE_PROT_USER)
- pte_val(pte) |= __PAGE_PROT_UWAUX;
- return pte;
-}
-
-static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
-
-#define pte_ERROR(e) \
- printk(KERN_ERR "%s:%d: bad pte %08lx.\n", \
- __FILE__, __LINE__, pte_val(e))
-#define pgd_ERROR(e) \
- printk(KERN_ERR "%s:%d: bad pgd %08lx.\n", \
- __FILE__, __LINE__, pgd_val(e))
-
-/*
- * The "pgd_xxx()" functions here are trivial for a folded two-level
- * setup: the pgd is never bad, and a pmd always exists (as it's folded
- * into the pgd entry)
- */
-#define pgd_clear(xp) do { } while (0)
-
-/*
- * Certain architectures need to do special things when PTEs
- * within a page table are directly modified. Thus, the following
- * hook is made available.
- */
-#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
-#define set_pte_at(mm, addr, ptep, pteval) set_pte((ptep), (pteval))
-#define set_pte_atomic(pteptr, pteval) set_pte((pteptr), (pteval))
-
-/*
- * (pmds are folded into pgds so this doesn't get actually called,
- * but the define is needed for a generic inline function.)
- */
-#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
-
-#define ptep_get_and_clear(mm, addr, ptep) \
- __pte(xchg(&(ptep)->pte, 0))
-#define pte_same(a, b) (pte_val(a) == pte_val(b))
-#define pte_page(x) pfn_to_page(pte_pfn(x))
-#define pte_none(x) (!pte_val(x))
-#define pte_pfn(x) ((unsigned long) (pte_val(x) >> PAGE_SHIFT))
-#define __pfn_addr(pfn) ((pfn) << PAGE_SHIFT)
-#define pfn_pte(pfn, prot) __pte(__pfn_addr(pfn) | pgprot_val(prot))
-#define pfn_pmd(pfn, prot) __pmd(__pfn_addr(pfn) | pgprot_val(prot))
-
-/*
- * All present user pages are user-executable:
- */
-static inline int pte_exec(pte_t pte)
-{
- return pte_user(pte);
-}
-
-/*
- * All present pages are kernel-executable:
- */
-static inline int pte_exec_kernel(pte_t pte)
-{
- return 1;
-}
-
-/* Encode and de-code a swap entry */
-#define __swp_type(x) (((x).val >> 1) & 0x3f)
-#define __swp_offset(x) ((x).val >> 7)
-#define __swp_entry(type, offset) \
- ((swp_entry_t) { ((type) << 1) | ((offset) << 7) })
-#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
-#define __swp_entry_to_pte(x) __pte((x).val)
-
-static inline
-int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr,
- pte_t *ptep)
-{
- if (!pte_dirty(*ptep))
- return 0;
- return test_and_clear_bit(_PAGE_BIT_DIRTY, &ptep->pte);
-}
-
-static inline
-int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr,
- pte_t *ptep)
-{
- if (!pte_young(*ptep))
- return 0;
- return test_and_clear_bit(_PAGE_BIT_ACCESSED, &ptep->pte);
-}
-
-static inline
-void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
-{
- pte_val(*ptep) &= ~(__PAGE_PROT_WRITE|__PAGE_PROT_UWAUX);
-}
-
-static inline void ptep_mkdirty(pte_t *ptep)
-{
- set_bit(_PAGE_BIT_DIRTY, &ptep->pte);
-}
-
-/*
- * Macro to mark a page protection value as "uncacheable". On processors which
- * do not support it, this is a no-op.
- */
-#define pgprot_noncached(prot) __pgprot(pgprot_val(prot) & ~_PAGE_CACHE)
-
-/*
- * Macro to mark a page protection value as "Write-Through".
- * On processors which do not support it, this is a no-op.
- */
-#define pgprot_through(prot) __pgprot(pgprot_val(prot) | _PAGE_CACHE_WT)
-
-/*
- * Conversion functions: convert a page and protection to a page entry,
- * and a page entry and page directory to the page they refer to.
- */
-
-#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot))
-#define mk_pte_huge(entry) \
- ((entry).pte |= _PAGE_PRESENT | _PAGE_PSE | _PAGE_VALID)
-
-static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
-{
- pte_val(pte) &= _PAGE_CHG_MASK;
- pte_val(pte) |= pgprot_val(newprot);
- return pte;
-}
-
-#define page_pte(page) page_pte_prot((page), __pgprot(0))
-
-#define pmd_page_kernel(pmd) \
- ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
-
-#define pmd_page(pmd) pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT)
-
-#define pmd_large(pmd) \
- ((pmd_val(pmd) & (_PAGE_PSE | _PAGE_PRESENT)) == \
- (_PAGE_PSE | _PAGE_PRESENT))
-
-/*
- * the pgd page can be thought of an array like this: pgd_t[PTRS_PER_PGD]
- *
- * this macro returns the index of the entry in the pgd page which would
- * control the given virtual address
- */
-#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1))
-
-/*
- * pgd_offset() returns a (pgd_t *)
- * pgd_index() is used get the offset into the pgd page's array of pgd_t's;
- */
-#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
-
-/*
- * a shortcut which implies the use of the kernel's pgd, instead
- * of a process's
- */
-#define pgd_offset_k(address) pgd_offset(&init_mm, address)
-
-/*
- * the pmd page can be thought of an array like this: pmd_t[PTRS_PER_PMD]
- *
- * this macro returns the index of the entry in the pmd page which would
- * control the given virtual address
- */
-#define pmd_index(address) \
- (((address) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))
-
-/*
- * the pte page can be thought of an array like this: pte_t[PTRS_PER_PTE]
- *
- * this macro returns the index of the entry in the pte page which would
- * control the given virtual address
- */
-#define pte_index(address) \
- (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
-
-#define pte_offset_kernel(dir, address) \
- ((pte_t *) pmd_page_kernel(*(dir)) + pte_index(address))
-
-/*
- * Make a given kernel text page executable/non-executable.
- * Returns the previous executability setting of that page (which
- * is used to restore the previous state). Used by the SMP bootup code.
- * NOTE: this is an __init function for security reasons.
- */
-static inline int set_kernel_exec(unsigned long vaddr, int enable)
-{
- return 0;
-}
-
-#define pte_offset_map(dir, address) \
- ((pte_t *) page_address(pmd_page(*(dir))) + pte_index(address))
-#define pte_unmap(pte) do {} while (0)
-
-/*
- * The MN10300 has external MMU info in the form of a TLB: this is adapted from
- * the kernel page tables containing the necessary information by tlb-mn10300.S
- */
-extern void update_mmu_cache(struct vm_area_struct *vma,
- unsigned long address, pte_t *ptep);
-
-#endif /* !__ASSEMBLY__ */
-
-#define kern_addr_valid(addr) (1)
-
-#define MK_IOSPACE_PFN(space, pfn) (pfn)
-#define GET_IOSPACE(pfn) 0
-#define GET_PFN(pfn) (pfn)
-
-#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
-#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY
-#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
-#define __HAVE_ARCH_PTEP_SET_WRPROTECT
-#define __HAVE_ARCH_PTEP_MKDIRTY
-#define __HAVE_ARCH_PTE_SAME
-#include <asm-generic/pgtable.h>
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* _ASM_PGTABLE_H */
+++ /dev/null
-/* MN10300 On-board I/O port module registers
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_PIO_REGS_H
-#define _ASM_PIO_REGS_H
-
-#include <asm/cpu-regs.h>
-#include <asm/intctl-regs.h>
-
-#ifdef __KERNEL__
-
-/* I/O port 0 */
-#define P0MD __SYSREG(0xdb000000, u16) /* mode reg */
-#define P0MD_0 0x0003 /* mask */
-#define P0MD_0_IN 0x0000 /* input mode */
-#define P0MD_0_OUT 0x0001 /* output mode */
-#define P0MD_0_TM0IO 0x0002 /* timer 0 I/O mode */
-#define P0MD_0_EYECLK 0x0003 /* test signal output (clock) */
-#define P0MD_1 0x000c
-#define P0MD_1_IN 0x0000
-#define P0MD_1_OUT 0x0004
-#define P0MD_1_TM1IO 0x0008 /* timer 1 I/O mode */
-#define P0MD_1_EYED 0x000c /* test signal output (data) */
-#define P0MD_2 0x0030
-#define P0MD_2_IN 0x0000
-#define P0MD_2_OUT 0x0010
-#define P0MD_2_TM2IO 0x0020 /* timer 2 I/O mode */
-#define P0MD_3 0x00c0
-#define P0MD_3_IN 0x0000
-#define P0MD_3_OUT 0x0040
-#define P0MD_3_TM3IO 0x0080 /* timer 3 I/O mode */
-#define P0MD_4 0x0300
-#define P0MD_4_IN 0x0000
-#define P0MD_4_OUT 0x0100
-#define P0MD_4_TM4IO 0x0200 /* timer 4 I/O mode */
-#define P0MD_4_XCTS 0x0300 /* XCTS input for serial port 2 */
-#define P0MD_5 0x0c00
-#define P0MD_5_IN 0x0000
-#define P0MD_5_OUT 0x0400
-#define P0MD_5_TM5IO 0x0800 /* timer 5 I/O mode */
-#define P0MD_6 0x3000
-#define P0MD_6_IN 0x0000
-#define P0MD_6_OUT 0x1000
-#define P0MD_6_TM6IOA 0x2000 /* timer 6 I/O mode A */
-#define P0MD_7 0xc000
-#define P0MD_7_IN 0x0000
-#define P0MD_7_OUT 0x4000
-#define P0MD_7_TM6IOB 0x8000 /* timer 6 I/O mode B */
-
-#define P0IN __SYSREG(0xdb000004, u8) /* in reg */
-#define P0OUT __SYSREG(0xdb000008, u8) /* out reg */
-
-#define P0TMIO __SYSREG(0xdb00000c, u8) /* TM pin I/O control reg */
-#define P0TMIO_TM0_IN 0x00
-#define P0TMIO_TM0_OUT 0x01
-#define P0TMIO_TM1_IN 0x00
-#define P0TMIO_TM1_OUT 0x02
-#define P0TMIO_TM2_IN 0x00
-#define P0TMIO_TM2_OUT 0x04
-#define P0TMIO_TM3_IN 0x00
-#define P0TMIO_TM3_OUT 0x08
-#define P0TMIO_TM4_IN 0x00
-#define P0TMIO_TM4_OUT 0x10
-#define P0TMIO_TM5_IN 0x00
-#define P0TMIO_TM5_OUT 0x20
-#define P0TMIO_TM6A_IN 0x00
-#define P0TMIO_TM6A_OUT 0x40
-#define P0TMIO_TM6B_IN 0x00
-#define P0TMIO_TM6B_OUT 0x80
-
-/* I/O port 1 */
-#define P1MD __SYSREG(0xdb000100, u16) /* mode reg */
-#define P1MD_0 0x0003 /* mask */
-#define P1MD_0_IN 0x0000 /* input mode */
-#define P1MD_0_OUT 0x0001 /* output mode */
-#define P1MD_0_TM7IO 0x0002 /* timer 7 I/O mode */
-#define P1MD_0_ADTRG 0x0003 /* A/D converter trigger mode */
-#define P1MD_1 0x000c
-#define P1MD_1_IN 0x0000
-#define P1MD_1_OUT 0x0004
-#define P1MD_1_TM8IO 0x0008 /* timer 8 I/O mode */
-#define P1MD_1_XDMR0 0x000c /* DMA request input 0 mode */
-#define P1MD_2 0x0030
-#define P1MD_2_IN 0x0000
-#define P1MD_2_OUT 0x0010
-#define P1MD_2_TM9IO 0x0020 /* timer 9 I/O mode */
-#define P1MD_2_XDMR1 0x0030 /* DMA request input 1 mode */
-#define P1MD_3 0x00c0
-#define P1MD_3_IN 0x0000
-#define P1MD_3_OUT 0x0040
-#define P1MD_3_TM10IO 0x0080 /* timer 10 I/O mode */
-#define P1MD_3_FRQS0 0x00c0 /* CPU clock multiplier setting input 0 mode */
-#define P1MD_4 0x0300
-#define P1MD_4_IN 0x0000
-#define P1MD_4_OUT 0x0100
-#define P1MD_4_TM11IO 0x0200 /* timer 11 I/O mode */
-#define P1MD_4_FRQS1 0x0300 /* CPU clock multiplier setting input 1 mode */
-
-#define P1IN __SYSREG(0xdb000104, u8) /* in reg */
-#define P1OUT __SYSREG(0xdb000108, u8) /* out reg */
-#define P1TMIO __SYSREG(0xdb00010c, u8) /* TM pin I/O control reg */
-#define P1TMIO_TM11_IN 0x00
-#define P1TMIO_TM11_OUT 0x01
-#define P1TMIO_TM10_IN 0x00
-#define P1TMIO_TM10_OUT 0x02
-#define P1TMIO_TM9_IN 0x00
-#define P1TMIO_TM9_OUT 0x04
-#define P1TMIO_TM8_IN 0x00
-#define P1TMIO_TM8_OUT 0x08
-#define P1TMIO_TM7_IN 0x00
-#define P1TMIO_TM7_OUT 0x10
-
-/* I/O port 2 */
-#define P2MD __SYSREG(0xdb000200, u16) /* mode reg */
-#define P2MD_0 0x0003 /* mask */
-#define P2MD_0_IN 0x0000 /* input mode */
-#define P2MD_0_OUT 0x0001 /* output mode */
-#define P2MD_0_BOOTBW 0x0003 /* boot bus width selector mode */
-#define P2MD_1 0x000c
-#define P2MD_1_IN 0x0000
-#define P2MD_1_OUT 0x0004
-#define P2MD_1_BOOTSEL 0x000c /* boot device selector mode */
-#define P2MD_2 0x0030
-#define P2MD_2_IN 0x0000
-#define P2MD_2_OUT 0x0010
-#define P2MD_3 0x00c0
-#define P2MD_3_IN 0x0000
-#define P2MD_3_OUT 0x0040
-#define P2MD_3_CKIO 0x00c0 /* mode */
-#define P2MD_4 0x0300
-#define P2MD_4_IN 0x0000
-#define P2MD_4_OUT 0x0100
-#define P2MD_4_CMOD 0x0300 /* mode */
-
-#define P2IN __SYSREG(0xdb000204, u8) /* in reg */
-#define P2OUT __SYSREG(0xdb000208, u8) /* out reg */
-#define P2TMIO __SYSREG(0xdb00020c, u8) /* TM pin I/O control reg */
-
-/* I/O port 3 */
-#define P3MD __SYSREG(0xdb000300, u16) /* mode reg */
-#define P3MD_0 0x0003 /* mask */
-#define P3MD_0_IN 0x0000 /* input mode */
-#define P3MD_0_OUT 0x0001 /* output mode */
-#define P3MD_0_AFRXD 0x0002 /* AFR interface mode */
-#define P3MD_1 0x000c
-#define P3MD_1_IN 0x0000
-#define P3MD_1_OUT 0x0004
-#define P3MD_1_AFTXD 0x0008 /* AFR interface mode */
-#define P3MD_2 0x0030
-#define P3MD_2_IN 0x0000
-#define P3MD_2_OUT 0x0010
-#define P3MD_2_AFSCLK 0x0020 /* AFR interface mode */
-#define P3MD_3 0x00c0
-#define P3MD_3_IN 0x0000
-#define P3MD_3_OUT 0x0040
-#define P3MD_3_AFFS 0x0080 /* AFR interface mode */
-#define P3MD_4 0x0300
-#define P3MD_4_IN 0x0000
-#define P3MD_4_OUT 0x0100
-#define P3MD_4_AFEHC 0x0200 /* AFR interface mode */
-
-#define P3IN __SYSREG(0xdb000304, u8) /* in reg */
-#define P3OUT __SYSREG(0xdb000308, u8) /* out reg */
-
-/* I/O port 4 */
-#define P4MD __SYSREG(0xdb000400, u16) /* mode reg */
-#define P4MD_0 0x0003 /* mask */
-#define P4MD_0_IN 0x0000 /* input mode */
-#define P4MD_0_OUT 0x0001 /* output mode */
-#define P4MD_0_SCL0 0x0002 /* I2C/serial mode */
-#define P4MD_1 0x000c
-#define P4MD_1_IN 0x0000
-#define P4MD_1_OUT 0x0004
-#define P4MD_1_SDA0 0x0008
-#define P4MD_2 0x0030
-#define P4MD_2_IN 0x0000
-#define P4MD_2_OUT 0x0010
-#define P4MD_2_SCL1 0x0020
-#define P4MD_3 0x00c0
-#define P4MD_3_IN 0x0000
-#define P4MD_3_OUT 0x0040
-#define P4MD_3_SDA1 0x0080
-#define P4MD_4 0x0300
-#define P4MD_4_IN 0x0000
-#define P4MD_4_OUT 0x0100
-#define P4MD_4_SBO0 0x0200
-#define P4MD_5 0x0c00
-#define P4MD_5_IN 0x0000
-#define P4MD_5_OUT 0x0400
-#define P4MD_5_SBO1 0x0800
-#define P4MD_6 0x3000
-#define P4MD_6_IN 0x0000
-#define P4MD_6_OUT 0x1000
-#define P4MD_6_SBT0 0x2000
-#define P4MD_7 0xc000
-#define P4MD_7_IN 0x0000
-#define P4MD_7_OUT 0x4000
-#define P4MD_7_SBT1 0x8000
-
-#define P4IN __SYSREG(0xdb000404, u8) /* in reg */
-#define P4OUT __SYSREG(0xdb000408, u8) /* out reg */
-
-/* I/O port 5 */
-#define P5MD __SYSREG(0xdb000500, u16) /* mode reg */
-#define P5MD_0 0x0003 /* mask */
-#define P5MD_0_IN 0x0000 /* input mode */
-#define P5MD_0_OUT 0x0001 /* output mode */
-#define P5MD_0_IRTXD 0x0002 /* IrDA mode */
-#define P5MD_0_SOUT 0x0004 /* serial mode */
-#define P5MD_1 0x000c
-#define P5MD_1_IN 0x0000
-#define P5MD_1_OUT 0x0004
-#define P5MD_1_IRRXDS 0x0008 /* IrDA mode */
-#define P5MD_1_SIN 0x000c /* serial mode */
-#define P5MD_2 0x0030
-#define P5MD_2_IN 0x0000
-#define P5MD_2_OUT 0x0010
-#define P5MD_2_IRRXDF 0x0020 /* IrDA mode */
-
-#define P5IN __SYSREG(0xdb000504, u8) /* in reg */
-#define P5OUT __SYSREG(0xdb000508, u8) /* out reg */
-
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_PIO_REGS_H */
+++ /dev/null
-/* MN10300 Processor specifics
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_PROCESSOR_H
-#define _ASM_PROCESSOR_H
-
-#include <linux/threads.h>
-#include <linux/thread_info.h>
-#include <asm/page.h>
-#include <asm/ptrace.h>
-#include <asm/cpu-regs.h>
-#include <asm/current.h>
-
-/* Forward declaration, a strange C thing */
-struct task_struct;
-struct mm_struct;
-
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() \
-({ \
- void *__pc; \
- asm("mov pc,%0" : "=a"(__pc)); \
- __pc; \
-})
-
-extern void get_mem_info(unsigned long *mem_base, unsigned long *mem_size);
-
-extern void show_registers(struct pt_regs *regs);
-
-/*
- * CPU type and hardware bug flags. Kept separately for each CPU.
- * Members of this structure are referenced in head.S, so think twice
- * before touching them. [mj]
- */
-
-struct mn10300_cpuinfo {
- int type;
- unsigned long loops_per_jiffy;
- char hard_math;
-};
-
-extern struct mn10300_cpuinfo boot_cpu_data;
-
-#ifdef CONFIG_SMP
-#if CONFIG_NR_CPUS < 2 || CONFIG_NR_CPUS > 8
-# error Sorry, NR_CPUS should be 2 to 8
-#endif
-extern struct mn10300_cpuinfo cpu_data[];
-#define current_cpu_data cpu_data[smp_processor_id()]
-#else /* CONFIG_SMP */
-#define cpu_data &boot_cpu_data
-#define current_cpu_data boot_cpu_data
-#endif /* CONFIG_SMP */
-
-extern void identify_cpu(struct mn10300_cpuinfo *);
-extern void print_cpu_info(struct mn10300_cpuinfo *);
-extern void dodgy_tsc(void);
-
-#define cpu_relax() barrier()
-
-/*
- * User space process size: 1.75GB (default).
- */
-#define TASK_SIZE 0x70000000
-
-/*
- * Where to put the userspace stack by default
- */
-#define STACK_TOP 0x70000000
-#define STACK_TOP_MAX STACK_TOP
-
-/* This decides where the kernel will search for a free chunk of vm
- * space during mmap's.
- */
-#define TASK_UNMAPPED_BASE 0x30000000
-
-struct fpu_state_struct {
- unsigned long fs[32]; /* fpu registers */
- unsigned long fpcr; /* fpu control register */
-};
-
-struct thread_struct {
- struct pt_regs *uregs; /* userspace register frame */
- unsigned long pc; /* kernel PC */
- unsigned long sp; /* kernel SP */
- unsigned long a3; /* kernel FP */
- unsigned long wchan;
- unsigned long usp;
- unsigned long fpu_flags;
-#define THREAD_USING_FPU 0x00000001 /* T if this task is using the FPU */
-#define THREAD_HAS_FPU 0x00000002 /* T if this task owns the FPU right now */
- struct fpu_state_struct fpu_state;
-};
-
-#define INIT_THREAD \
-{ \
- .uregs = init_uregs, \
- .pc = 0, \
- .sp = 0, \
- .a3 = 0, \
- .wchan = 0, \
-}
-
-#define INIT_MMAP \
-{ &init_mm, 0, 0, NULL, PAGE_SHARED, VM_READ | VM_WRITE | VM_EXEC, 1, \
- NULL, NULL }
-
-/*
- * do necessary setup to start up a newly executed thread
- */
-static inline void start_thread(struct pt_regs *regs,
- unsigned long new_pc, unsigned long new_sp)
-{
- regs->epsw = EPSW_nSL | EPSW_IE | EPSW_IM;
- regs->pc = new_pc;
- regs->sp = new_sp;
-}
-
-
-/* Free all resources held by a thread. */
-extern void release_thread(struct task_struct *);
-
-unsigned long get_wchan(struct task_struct *p);
-
-#define task_pt_regs(task) ((task)->thread.uregs)
-#define KSTK_EIP(task) (task_pt_regs(task)->pc)
-#define KSTK_ESP(task) (task_pt_regs(task)->sp)
-
-#define KSTK_TOP(info) \
-({ \
- (unsigned long)(info) + THREAD_SIZE; \
-})
-
-#define ARCH_HAS_PREFETCH
-#define ARCH_HAS_PREFETCHW
-
-static inline void prefetch(const void *x)
-{
-#ifdef CONFIG_MN10300_CACHE_ENABLED
-#ifdef CONFIG_MN10300_PROC_MN103E010
- asm volatile ("nop; nop; dcpf (%0)" : : "r"(x));
-#else
- asm volatile ("dcpf (%0)" : : "r"(x));
-#endif
-#endif
-}
-
-static inline void prefetchw(const void *x)
-{
-#ifdef CONFIG_MN10300_CACHE_ENABLED
-#ifdef CONFIG_MN10300_PROC_MN103E010
- asm volatile ("nop; nop; dcpf (%0)" : : "r"(x));
-#else
- asm volatile ("dcpf (%0)" : : "r"(x));
-#endif
-#endif
-}
-
-#endif /* _ASM_PROCESSOR_H */
+++ /dev/null
-/* MN10300 Exception frame layout and ptrace constants
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_PTRACE_H
-#define _ASM_PTRACE_H
-
-#include <uapi/asm/ptrace.h>
-
-
-#define user_mode(regs) (((regs)->epsw & EPSW_nSL) == EPSW_nSL)
-#define instruction_pointer(regs) ((regs)->pc)
-#define user_stack_pointer(regs) ((regs)->sp)
-#define current_pt_regs() current_frame()
-
-#define arch_has_single_step() (1)
-
-#define profile_pc(regs) ((regs)->pc)
-
-#endif /* _ASM_PTRACE_H */
+++ /dev/null
-/* MN10300 Reset controller and watchdog timer definitions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_RESET_REGS_H
-#define _ASM_RESET_REGS_H
-
-#include <asm/cpu-regs.h>
-#include <asm/exceptions.h>
-
-#ifdef __KERNEL__
-
-/*
- * watchdog timer registers
- */
-#define WDBC __SYSREGC(0xc0001000, u8) /* watchdog binary counter reg */
-
-#define WDCTR __SYSREG(0xc0001002, u8) /* watchdog timer control reg */
-#define WDCTR_WDCK 0x07 /* clock source selection */
-#define WDCTR_WDCK_256th 0x00 /* - OSCI/256 */
-#define WDCTR_WDCK_1024th 0x01 /* - OSCI/1024 */
-#define WDCTR_WDCK_2048th 0x02 /* - OSCI/2048 */
-#define WDCTR_WDCK_16384th 0x03 /* - OSCI/16384 */
-#define WDCTR_WDCK_65536th 0x04 /* - OSCI/65536 */
-#define WDCTR_WDRST 0x40 /* binary counter reset */
-#define WDCTR_WDCNE 0x80 /* watchdog timer enable */
-
-#define RSTCTR __SYSREG(0xc0001004, u8) /* reset control reg */
-#define RSTCTR_CHIPRST 0x01 /* chip reset */
-#define RSTCTR_DBFRST 0x02 /* double fault reset flag */
-#define RSTCTR_WDTRST 0x04 /* watchdog timer reset flag */
-#define RSTCTR_WDREN 0x08 /* watchdog timer reset enable */
-
-#ifndef __ASSEMBLY__
-
-static inline void mn10300_proc_hard_reset(void)
-{
- RSTCTR &= ~RSTCTR_CHIPRST;
- RSTCTR |= RSTCTR_CHIPRST;
-}
-
-extern unsigned int watchdog_alert_counter[];
-
-extern void watchdog_go(void);
-extern asmlinkage void watchdog_handler(void);
-extern asmlinkage
-void watchdog_interrupt(struct pt_regs *, enum exception_code);
-
-#endif
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_RESET_REGS_H */
+++ /dev/null
-/* MN10300 on-chip Real-Time Clock registers
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_RTC_REGS_H
-#define _ASM_RTC_REGS_H
-
-#include <asm/intctl-regs.h>
-
-#ifdef __KERNEL__
-
-#define RTSCR __SYSREG(0xd8600000, u8) /* RTC seconds count reg */
-#define RTSAR __SYSREG(0xd8600001, u8) /* RTC seconds alarm reg */
-#define RTMCR __SYSREG(0xd8600002, u8) /* RTC minutes count reg */
-#define RTMAR __SYSREG(0xd8600003, u8) /* RTC minutes alarm reg */
-#define RTHCR __SYSREG(0xd8600004, u8) /* RTC hours count reg */
-#define RTHAR __SYSREG(0xd8600005, u8) /* RTC hours alarm reg */
-#define RTDWCR __SYSREG(0xd8600006, u8) /* RTC day of the week count reg */
-#define RTDMCR __SYSREG(0xd8600007, u8) /* RTC days count reg */
-#define RTMTCR __SYSREG(0xd8600008, u8) /* RTC months count reg */
-#define RTYCR __SYSREG(0xd8600009, u8) /* RTC years count reg */
-
-#define RTCRA __SYSREG(0xd860000a, u8)/* RTC control reg A */
-#define RTCRA_RS 0x0f /* periodic timer interrupt cycle setting */
-#define RTCRA_RS_NONE 0x00 /* - off */
-#define RTCRA_RS_3_90625ms 0x01 /* - 3.90625ms (1/256s) */
-#define RTCRA_RS_7_8125ms 0x02 /* - 7.8125ms (1/128s) */
-#define RTCRA_RS_122_070us 0x03 /* - 122.070us (1/8192s) */
-#define RTCRA_RS_244_141us 0x04 /* - 244.141us (1/4096s) */
-#define RTCRA_RS_488_281us 0x05 /* - 488.281us (1/2048s) */
-#define RTCRA_RS_976_5625us 0x06 /* - 976.5625us (1/1024s) */
-#define RTCRA_RS_1_953125ms 0x07 /* - 1.953125ms (1/512s) */
-#define RTCRA_RS_3_90624ms 0x08 /* - 3.90624ms (1/256s) */
-#define RTCRA_RS_7_8125ms_b 0x09 /* - 7.8125ms (1/128s) */
-#define RTCRA_RS_15_625ms 0x0a /* - 15.625ms (1/64s) */
-#define RTCRA_RS_31_25ms 0x0b /* - 31.25ms (1/32s) */
-#define RTCRA_RS_62_5ms 0x0c /* - 62.5ms (1/16s) */
-#define RTCRA_RS_125ms 0x0d /* - 125ms (1/8s) */
-#define RTCRA_RS_250ms 0x0e /* - 250ms (1/4s) */
-#define RTCRA_RS_500ms 0x0f /* - 500ms (1/2s) */
-#define RTCRA_DVR 0x40 /* divider reset */
-#define RTCRA_UIP 0x80 /* clock update flag */
-
-#define RTCRB __SYSREG(0xd860000b, u8) /* RTC control reg B */
-#define RTCRB_DSE 0x01 /* daylight savings time enable */
-#define RTCRB_TM 0x02 /* time format */
-#define RTCRB_TM_12HR 0x00 /* - 12 hour format */
-#define RTCRB_TM_24HR 0x02 /* - 24 hour format */
-#define RTCRB_DM 0x04 /* numeric value format */
-#define RTCRB_DM_BCD 0x00 /* - BCD */
-#define RTCRB_DM_BINARY 0x04 /* - binary */
-#define RTCRB_UIE 0x10 /* update interrupt disable */
-#define RTCRB_AIE 0x20 /* alarm interrupt disable */
-#define RTCRB_PIE 0x40 /* periodic interrupt disable */
-#define RTCRB_SET 0x80 /* clock update enable */
-
-#define RTSRC __SYSREG(0xd860000c, u8) /* RTC status reg C */
-#define RTSRC_UF 0x10 /* update end interrupt flag */
-#define RTSRC_AF 0x20 /* alarm interrupt flag */
-#define RTSRC_PF 0x40 /* periodic interrupt flag */
-#define RTSRC_IRQF 0x80 /* interrupt flag */
-
-#define RTIRQ 32
-#define RTICR GxICR(RTIRQ)
-
-/*
- * MC146818 RTC compatibility defs for the MN10300 on-chip RTC
- */
-#define RTC_PORT(x) 0xd8600000
-#define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */
-
-#define CMOS_READ(addr) __SYSREG(0xd8600000 + (u32)(addr), u8)
-#define CMOS_WRITE(val, addr) \
- do { __SYSREG(0xd8600000 + (u32)(addr), u8) = val; } while (0)
-
-#define RTC_IRQ RTIRQ
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_RTC_REGS_H */
+++ /dev/null
-/* MN10300 Real time clock definitions
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_RTC_H
-#define _ASM_RTC_H
-
-#ifdef CONFIG_MN10300_RTC
-
-#include <linux/init.h>
-
-extern void __init calibrate_clock(void);
-
-#else /* !CONFIG_MN10300_RTC */
-
-static inline void calibrate_clock(void)
-{
-}
-
-#endif /* !CONFIG_MN10300_RTC */
-
-#endif /* _ASM_RTC_H */
+++ /dev/null
-/*
- * Helpers used by both rw spinlocks and rw semaphores.
- *
- * Based in part on code from semaphore.h and
- * spinlock.h Copyright 1996 Linus Torvalds.
- *
- * Copyright 1999 Red Hat, Inc.
- *
- * Written by Benjamin LaHaise.
- *
- * Modified by Matsushita Electric Industrial Co., Ltd.
- * Modifications:
- * 13-Nov-2006 MEI Temporarily delete lock functions for SMP support.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- */
-#ifndef _ASM_RWLOCK_H
-#define _ASM_RWLOCK_H
-
-#define RW_LOCK_BIAS 0x01000000
-
-#ifndef CONFIG_SMP
-
-typedef struct { unsigned long a[100]; } __dummy_lock_t;
-#define __dummy_lock(lock) (*(__dummy_lock_t *)(lock))
-
-#define RW_LOCK_BIAS_STR "0x01000000"
-
-#define __build_read_lock_ptr(rw, helper) \
- do { \
- asm volatile( \
- " mov (%0),d3 \n" \
- " sub 1,d3 \n" \
- " mov d3,(%0) \n" \
- " blt 1f \n" \
- " bra 2f \n" \
- "1: jmp 3f \n" \
- "2: \n" \
- " .section .text.lock,\"ax\" \n" \
- "3: call "helper"[],0 \n" \
- " jmp 2b \n" \
- " .previous" \
- : \
- : "d" (rw) \
- : "memory", "d3", "cc"); \
- } while (0)
-
-#define __build_read_lock_const(rw, helper) \
- do { \
- asm volatile( \
- " mov (%0),d3 \n" \
- " sub 1,d3 \n" \
- " mov d3,(%0) \n" \
- " blt 1f \n" \
- " bra 2f \n" \
- "1: jmp 3f \n" \
- "2: \n" \
- " .section .text.lock,\"ax\" \n" \
- "3: call "helper"[],0 \n" \
- " jmp 2b \n" \
- " .previous" \
- : \
- : "d" (rw) \
- : "memory", "d3", "cc"); \
- } while (0)
-
-#define __build_read_lock(rw, helper) \
- do { \
- if (__builtin_constant_p(rw)) \
- __build_read_lock_const(rw, helper); \
- else \
- __build_read_lock_ptr(rw, helper); \
- } while (0)
-
-#define __build_write_lock_ptr(rw, helper) \
- do { \
- asm volatile( \
- " mov (%0),d3 \n" \
- " sub 1,d3 \n" \
- " mov d3,(%0) \n" \
- " blt 1f \n" \
- " bra 2f \n" \
- "1: jmp 3f \n" \
- "2: \n" \
- " .section .text.lock,\"ax\" \n" \
- "3: call "helper"[],0 \n" \
- " jmp 2b \n" \
- " .previous" \
- : \
- : "d" (rw) \
- : "memory", "d3", "cc"); \
- } while (0)
-
-#define __build_write_lock_const(rw, helper) \
- do { \
- asm volatile( \
- " mov (%0),d3 \n" \
- " sub 1,d3 \n" \
- " mov d3,(%0) \n" \
- " blt 1f \n" \
- " bra 2f \n" \
- "1: jmp 3f \n" \
- "2: \n" \
- " .section .text.lock,\"ax\" \n" \
- "3: call "helper"[],0 \n" \
- " jmp 2b \n" \
- " .previous" \
- : \
- : "d" (rw) \
- : "memory", "d3", "cc"); \
- } while (0)
-
-#define __build_write_lock(rw, helper) \
- do { \
- if (__builtin_constant_p(rw)) \
- __build_write_lock_const(rw, helper); \
- else \
- __build_write_lock_ptr(rw, helper); \
- } while (0)
-
-#endif /* CONFIG_SMP */
-#endif /* _ASM_RWLOCK_H */
+++ /dev/null
-/* MN10300 on-board serial port module registers
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_SERIAL_REGS_H
-#define _ASM_SERIAL_REGS_H
-
-#include <asm/cpu-regs.h>
-#include <asm/intctl-regs.h>
-
-#ifdef __KERNEL__
-
-/* serial port 0 */
-#define SC0CTR __SYSREG(0xd4002000, u16) /* control reg */
-#define SC01CTR_CK 0x0007 /* clock source select */
-#define SC01CTR_CK_IOCLK_8 0x0001 /* - 1/8 IOCLK */
-#define SC01CTR_CK_IOCLK_32 0x0002 /* - 1/32 IOCLK */
-#define SC01CTR_CK_EXTERN_8 0x0006 /* - 1/8 external closk */
-#define SC01CTR_CK_EXTERN 0x0007 /* - external closk */
-#if defined(CONFIG_AM33_2) || defined(CONFIG_AM33_3)
-#define SC0CTR_CK_TM8UFLOW_8 0x0000 /* - 1/8 timer 8 underflow (serial port 0 only) */
-#define SC0CTR_CK_TM2UFLOW_2 0x0003 /* - 1/2 timer 2 underflow (serial port 0 only) */
-#define SC0CTR_CK_TM0UFLOW_8 0x0004 /* - 1/8 timer 0 underflow (serial port 0 only) */
-#define SC0CTR_CK_TM2UFLOW_8 0x0005 /* - 1/8 timer 2 underflow (serial port 0 only) */
-#define SC1CTR_CK_TM9UFLOW_8 0x0000 /* - 1/8 timer 9 underflow (serial port 1 only) */
-#define SC1CTR_CK_TM3UFLOW_2 0x0003 /* - 1/2 timer 3 underflow (serial port 1 only) */
-#define SC1CTR_CK_TM1UFLOW_8 0x0004 /* - 1/8 timer 1 underflow (serial port 1 only) */
-#define SC1CTR_CK_TM3UFLOW_8 0x0005 /* - 1/8 timer 3 underflow (serial port 1 only) */
-#else /* CONFIG_AM33_2 || CONFIG_AM33_3 */
-#define SC0CTR_CK_TM8UFLOW_8 0x0000 /* - 1/8 timer 8 underflow (serial port 0 only) */
-#define SC0CTR_CK_TM0UFLOW_8 0x0004 /* - 1/8 timer 0 underflow (serial port 0 only) */
-#define SC0CTR_CK_TM2UFLOW_8 0x0005 /* - 1/8 timer 2 underflow (serial port 0 only) */
-#define SC1CTR_CK_TM12UFLOW_8 0x0000 /* - 1/8 timer 12 underflow (serial port 1 only) */
-#endif /* CONFIG_AM33_2 || CONFIG_AM33_3 */
-#define SC01CTR_STB 0x0008 /* stop bit select */
-#define SC01CTR_STB_1BIT 0x0000 /* - 1 stop bit */
-#define SC01CTR_STB_2BIT 0x0008 /* - 2 stop bits */
-#define SC01CTR_PB 0x0070 /* parity bit select */
-#define SC01CTR_PB_NONE 0x0000 /* - no parity */
-#define SC01CTR_PB_FIXED0 0x0040 /* - fixed at 0 */
-#define SC01CTR_PB_FIXED1 0x0050 /* - fixed at 1 */
-#define SC01CTR_PB_EVEN 0x0060 /* - even parity */
-#define SC01CTR_PB_ODD 0x0070 /* - odd parity */
-#define SC01CTR_CLN 0x0080 /* character length */
-#define SC01CTR_CLN_7BIT 0x0000 /* - 7 bit chars */
-#define SC01CTR_CLN_8BIT 0x0080 /* - 8 bit chars */
-#define SC01CTR_TOE 0x0100 /* T input output enable */
-#define SC01CTR_OD 0x0200 /* bit order select */
-#define SC01CTR_OD_LSBFIRST 0x0000 /* - LSB first */
-#define SC01CTR_OD_MSBFIRST 0x0200 /* - MSB first */
-#define SC01CTR_MD 0x0c00 /* mode select */
-#define SC01CTR_MD_STST_SYNC 0x0000 /* - start-stop synchronous */
-#define SC01CTR_MD_CLOCK_SYNC1 0x0400 /* - clock synchronous 1 */
-#define SC01CTR_MD_I2C 0x0800 /* - I2C mode */
-#define SC01CTR_MD_CLOCK_SYNC2 0x0c00 /* - clock synchronous 2 */
-#define SC01CTR_IIC 0x1000 /* I2C mode select */
-#define SC01CTR_BKE 0x2000 /* break transmit enable */
-#define SC01CTR_RXE 0x4000 /* receive enable */
-#define SC01CTR_TXE 0x8000 /* transmit enable */
-
-#define SC0ICR __SYSREG(0xd4002004, u8) /* interrupt control reg */
-#define SC01ICR_DMD 0x80 /* output data mode */
-#define SC01ICR_TD 0x20 /* transmit DMA trigger cause */
-#define SC01ICR_TI 0x10 /* transmit interrupt cause */
-#define SC01ICR_RES 0x04 /* receive error select */
-#define SC01ICR_RI 0x01 /* receive interrupt cause */
-
-#define SC0TXB __SYSREG(0xd4002008, u8) /* transmit buffer reg */
-#define SC0RXB __SYSREG(0xd4002009, u8) /* receive buffer reg */
-
-#define SC0STR __SYSREG(0xd400200c, u16) /* status reg */
-#define SC01STR_OEF 0x0001 /* overrun error found */
-#define SC01STR_PEF 0x0002 /* parity error found */
-#define SC01STR_FEF 0x0004 /* framing error found */
-#define SC01STR_RBF 0x0010 /* receive buffer status */
-#define SC01STR_TBF 0x0020 /* transmit buffer status */
-#define SC01STR_RXF 0x0040 /* receive status */
-#define SC01STR_TXF 0x0080 /* transmit status */
-#define SC01STR_STF 0x0100 /* I2C start sequence found */
-#define SC01STR_SPF 0x0200 /* I2C stop sequence found */
-
-#define SC0RXIRQ 20 /* timer 0 Receive IRQ */
-#define SC0TXIRQ 21 /* timer 0 Transmit IRQ */
-
-#define SC0RXICR GxICR(SC0RXIRQ) /* serial 0 receive intr ctrl reg */
-#define SC0TXICR GxICR(SC0TXIRQ) /* serial 0 transmit intr ctrl reg */
-
-/* serial port 1 */
-#define SC1CTR __SYSREG(0xd4002010, u16) /* serial port 1 control */
-#define SC1ICR __SYSREG(0xd4002014, u8) /* interrupt control reg */
-#define SC1TXB __SYSREG(0xd4002018, u8) /* transmit buffer reg */
-#define SC1RXB __SYSREG(0xd4002019, u8) /* receive buffer reg */
-#define SC1STR __SYSREG(0xd400201c, u16) /* status reg */
-
-#define SC1RXIRQ 22 /* timer 1 Receive IRQ */
-#define SC1TXIRQ 23 /* timer 1 Transmit IRQ */
-
-#define SC1RXICR GxICR(SC1RXIRQ) /* serial 1 receive intr ctrl reg */
-#define SC1TXICR GxICR(SC1TXIRQ) /* serial 1 transmit intr ctrl reg */
-
-/* serial port 2 */
-#define SC2CTR __SYSREG(0xd4002020, u16) /* control reg */
-#ifdef CONFIG_AM33_2
-#define SC2CTR_CK 0x0003 /* clock source select */
-#define SC2CTR_CK_TM10UFLOW 0x0000 /* - timer 10 underflow */
-#define SC2CTR_CK_TM2UFLOW 0x0001 /* - timer 2 underflow */
-#define SC2CTR_CK_EXTERN 0x0002 /* - external closk */
-#define SC2CTR_CK_TM3UFLOW 0x0003 /* - timer 3 underflow */
-#else /* CONFIG_AM33_2 */
-#define SC2CTR_CK 0x0007 /* clock source select */
-#define SC2CTR_CK_TM9UFLOW_8 0x0000 /* - 1/8 timer 9 underflow */
-#define SC2CTR_CK_IOCLK_8 0x0001 /* - 1/8 IOCLK */
-#define SC2CTR_CK_IOCLK_32 0x0002 /* - 1/32 IOCLK */
-#define SC2CTR_CK_TM3UFLOW_2 0x0003 /* - 1/2 timer 3 underflow */
-#define SC2CTR_CK_TM1UFLOW_8 0x0004 /* - 1/8 timer 1 underflow */
-#define SC2CTR_CK_TM3UFLOW_8 0x0005 /* - 1/8 timer 3 underflow */
-#define SC2CTR_CK_EXTERN_8 0x0006 /* - 1/8 external closk */
-#define SC2CTR_CK_EXTERN 0x0007 /* - external closk */
-#endif /* CONFIG_AM33_2 */
-#define SC2CTR_STB 0x0008 /* stop bit select */
-#define SC2CTR_STB_1BIT 0x0000 /* - 1 stop bit */
-#define SC2CTR_STB_2BIT 0x0008 /* - 2 stop bits */
-#define SC2CTR_PB 0x0070 /* parity bit select */
-#define SC2CTR_PB_NONE 0x0000 /* - no parity */
-#define SC2CTR_PB_FIXED0 0x0040 /* - fixed at 0 */
-#define SC2CTR_PB_FIXED1 0x0050 /* - fixed at 1 */
-#define SC2CTR_PB_EVEN 0x0060 /* - even parity */
-#define SC2CTR_PB_ODD 0x0070 /* - odd parity */
-#define SC2CTR_CLN 0x0080 /* character length */
-#define SC2CTR_CLN_7BIT 0x0000 /* - 7 bit chars */
-#define SC2CTR_CLN_8BIT 0x0080 /* - 8 bit chars */
-#define SC2CTR_TWE 0x0100 /* transmit wait enable (enable XCTS control) */
-#define SC2CTR_OD 0x0200 /* bit order select */
-#define SC2CTR_OD_LSBFIRST 0x0000 /* - LSB first */
-#define SC2CTR_OD_MSBFIRST 0x0200 /* - MSB first */
-#define SC2CTR_TWS 0x1000 /* transmit wait select */
-#define SC2CTR_TWS_XCTS_HIGH 0x0000 /* - interrupt TX when XCTS high */
-#define SC2CTR_TWS_XCTS_LOW 0x1000 /* - interrupt TX when XCTS low */
-#define SC2CTR_BKE 0x2000 /* break transmit enable */
-#define SC2CTR_RXE 0x4000 /* receive enable */
-#define SC2CTR_TXE 0x8000 /* transmit enable */
-
-#define SC2ICR __SYSREG(0xd4002024, u8) /* interrupt control reg */
-#define SC2ICR_TD 0x20 /* transmit DMA trigger cause */
-#define SC2ICR_TI 0x10 /* transmit interrupt cause */
-#define SC2ICR_RES 0x04 /* receive error select */
-#define SC2ICR_RI 0x01 /* receive interrupt cause */
-
-#define SC2TXB __SYSREG(0xd4002028, u8) /* transmit buffer reg */
-#define SC2RXB __SYSREG(0xd4002029, u8) /* receive buffer reg */
-
-#ifdef CONFIG_AM33_2
-#define SC2STR __SYSREG(0xd400202c, u8) /* status reg */
-#else /* CONFIG_AM33_2 */
-#define SC2STR __SYSREG(0xd400202c, u16) /* status reg */
-#endif /* CONFIG_AM33_2 */
-#define SC2STR_OEF 0x0001 /* overrun error found */
-#define SC2STR_PEF 0x0002 /* parity error found */
-#define SC2STR_FEF 0x0004 /* framing error found */
-#define SC2STR_CTS 0x0008 /* XCTS input pin status (0 means high) */
-#define SC2STR_RBF 0x0010 /* receive buffer status */
-#define SC2STR_TBF 0x0020 /* transmit buffer status */
-#define SC2STR_RXF 0x0040 /* receive status */
-#define SC2STR_TXF 0x0080 /* transmit status */
-
-#ifdef CONFIG_AM33_2
-#define SC2TIM __SYSREG(0xd400202d, u8) /* status reg */
-#endif
-
-#ifdef CONFIG_AM33_2
-#define SC2RXIRQ 24 /* serial 2 Receive IRQ */
-#define SC2TXIRQ 25 /* serial 2 Transmit IRQ */
-#else /* CONFIG_AM33_2 */
-#define SC2RXIRQ 68 /* serial 2 Receive IRQ */
-#define SC2TXIRQ 69 /* serial 2 Transmit IRQ */
-#endif /* CONFIG_AM33_2 */
-
-#define SC2RXICR GxICR(SC2RXIRQ) /* serial 2 receive intr ctrl reg */
-#define SC2TXICR GxICR(SC2TXIRQ) /* serial 2 transmit intr ctrl reg */
-
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_SERIAL_REGS_H */
+++ /dev/null
-/* Standard UART definitions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_SERIAL_H
-#define _ASM_SERIAL_H
-
-/* Standard COM flags (except for COM4, because of the 8514 problem) */
-#ifdef CONFIG_SERIAL_8250_DETECT_IRQ
-#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ)
-#define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | UPF_AUTO_IRQ)
-#else
-#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST)
-#define STD_COM4_FLAGS UPF_BOOT_AUTOCONF
-#endif
-
-#ifdef CONFIG_SERIAL_8250_MANY_PORTS
-#define FOURPORT_FLAGS UPF_FOURPORT
-#define ACCENT_FLAGS 0
-#define BOCA_FLAGS 0
-#define HUB6_FLAGS 0
-#define RS_TABLE_SIZE 64
-#else
-#define RS_TABLE_SIZE
-#endif
-
-#include <unit/serial.h>
-
-#endif /* _ASM_SERIAL_H */
+++ /dev/null
-/* MN10300 Setup declarations
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_SETUP_H
-#define _ASM_SETUP_H
-
-#include <uapi/asm/setup.h>
-
-extern void __init unit_setup(void);
-extern void __init unit_init_IRQ(void);
-#endif /* _ASM_SETUP_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_SHMPARAM_H
-#define _ASM_SHMPARAM_H
-
-#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */
-
-#endif /* _ASM_SHMPARAM_H */
+++ /dev/null
-/* MN10300 Signal definitions
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_SIGNAL_H
-#define _ASM_SIGNAL_H
-
-#include <uapi/asm/signal.h>
-
-/* Most things should be clean enough to redefine this at will, if care
- is taken to make libc match. */
-
-#define _NSIG 64
-#define _NSIG_BPW 32
-#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
-
-typedef unsigned long old_sigset_t; /* at least 32 bits */
-
-typedef struct {
- unsigned long sig[_NSIG_WORDS];
-} sigset_t;
-
-#define __ARCH_HAS_SA_RESTORER
-
-#include <asm/sigcontext.h>
-
-#endif /* _ASM_SIGNAL_H */
+++ /dev/null
-/* MN10300 SMP support
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * Modified by Matsushita Electric Industrial Co., Ltd.
- * Modifications:
- * 13-Nov-2006 MEI Define IPI-IRQ number and add inline/macro function
- * for SMP support.
- * 22-Jan-2007 MEI Add the define related to SMP_BOOT_IRQ.
- * 23-Feb-2007 MEI Add the define related to SMP icahce invalidate.
- * 23-Jun-2008 MEI Delete INTC_IPI.
- * 22-Jul-2008 MEI Add smp_nmi_call_function and related defines.
- * 04-Aug-2008 MEI Delete USE_DOIRQ_CACHE_IPI.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_SMP_H
-#define _ASM_SMP_H
-
-#ifndef __ASSEMBLY__
-#include <linux/threads.h>
-#include <linux/cpumask.h>
-#include <linux/thread_info.h>
-#endif
-
-#ifdef CONFIG_SMP
-#include <proc/smp-regs.h>
-
-#define RESCHEDULE_IPI 63
-#define CALL_FUNC_SINGLE_IPI 192
-#define LOCAL_TIMER_IPI 193
-#define FLUSH_CACHE_IPI 194
-#define CALL_FUNCTION_NMI_IPI 195
-#define DEBUGGER_NMI_IPI 196
-
-#define SMP_BOOT_IRQ 195
-
-#define RESCHEDULE_GxICR_LV GxICR_LEVEL_6
-#define CALL_FUNCTION_GxICR_LV GxICR_LEVEL_4
-#define LOCAL_TIMER_GxICR_LV GxICR_LEVEL_4
-#define FLUSH_CACHE_GxICR_LV GxICR_LEVEL_0
-#define SMP_BOOT_GxICR_LV GxICR_LEVEL_0
-#define DEBUGGER_GxICR_LV CONFIG_DEBUGGER_IRQ_LEVEL
-
-#define TIME_OUT_COUNT_BOOT_IPI 100
-#define DELAY_TIME_BOOT_IPI 75000
-
-
-#ifndef __ASSEMBLY__
-
-/**
- * raw_smp_processor_id - Determine the raw CPU ID of the CPU running it
- *
- * What we really want to do is to use the CPUID hardware CPU register to get
- * this information, but accesses to that aren't cached, and run at system bus
- * speed, not CPU speed. A copy of this value is, however, stored in the
- * thread_info struct, and that can be cached.
- *
- * An alternate way of dealing with this could be to use the EPSW.S bits to
- * cache this information for systems with up to four CPUs.
- */
-#define arch_smp_processor_id() (CPUID)
-#if 0
-#define raw_smp_processor_id() (arch_smp_processor_id())
-#else
-#define raw_smp_processor_id() (current_thread_info()->cpu)
-#endif
-
-static inline int cpu_logical_map(int cpu)
-{
- return cpu;
-}
-
-static inline int cpu_number_map(int cpu)
-{
- return cpu;
-}
-
-
-extern cpumask_t cpu_boot_map;
-
-extern void smp_init_cpus(void);
-extern void smp_cache_interrupt(void);
-extern void send_IPI_allbutself(int irq);
-extern int smp_nmi_call_function(void (*func)(void *), void *info, int wait);
-
-extern void arch_send_call_function_single_ipi(int cpu);
-extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
-
-#ifdef CONFIG_HOTPLUG_CPU
-extern int __cpu_disable(void);
-extern void __cpu_die(unsigned int cpu);
-#endif /* CONFIG_HOTPLUG_CPU */
-
-#endif /* __ASSEMBLY__ */
-#else /* CONFIG_SMP */
-#ifndef __ASSEMBLY__
-
-static inline void smp_init_cpus(void) {}
-#define raw_smp_processor_id() 0
-
-#endif /* __ASSEMBLY__ */
-#endif /* CONFIG_SMP */
-
-#endif /* _ASM_SMP_H */
+++ /dev/null
-#include <unit/smsc911x.h>
+++ /dev/null
-/* MN10300 spinlock support
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_SPINLOCK_H
-#define _ASM_SPINLOCK_H
-
-#include <linux/atomic.h>
-#include <asm/barrier.h>
-#include <asm/processor.h>
-#include <asm/rwlock.h>
-#include <asm/page.h>
-
-/*
- * Simple spin lock operations. There are two variants, one clears IRQ's
- * on the local processor, one does not.
- *
- * We make no fairness assumptions. They have a cost.
- */
-
-#define arch_spin_is_locked(x) (*(volatile signed char *)(&(x)->slock) != 0)
-
-static inline void arch_spin_unlock(arch_spinlock_t *lock)
-{
- asm volatile(
- " bclr 1,(0,%0) \n"
- :
- : "a"(&lock->slock)
- : "memory", "cc");
-}
-
-static inline int arch_spin_trylock(arch_spinlock_t *lock)
-{
- int ret;
-
- asm volatile(
- " mov 1,%0 \n"
- " bset %0,(%1) \n"
- " bne 1f \n"
- " clr %0 \n"
- "1: xor 1,%0 \n"
- : "=d"(ret)
- : "a"(&lock->slock)
- : "memory", "cc");
-
- return ret;
-}
-
-static inline void arch_spin_lock(arch_spinlock_t *lock)
-{
- asm volatile(
- "1: bset 1,(0,%0) \n"
- " bne 1b \n"
- :
- : "a"(&lock->slock)
- : "memory", "cc");
-}
-
-static inline void arch_spin_lock_flags(arch_spinlock_t *lock,
- unsigned long flags)
-{
- int temp;
-
- asm volatile(
- "1: bset 1,(0,%2) \n"
- " beq 3f \n"
- " mov %1,epsw \n"
- "2: mov (0,%2),%0 \n"
- " or %0,%0 \n"
- " bne 2b \n"
- " mov %3,%0 \n"
- " mov %0,epsw \n"
- " nop \n"
- " nop \n"
- " bra 1b\n"
- "3: \n"
- : "=&d" (temp)
- : "d" (flags), "a"(&lock->slock), "i"(EPSW_IE | MN10300_CLI_LEVEL)
- : "memory", "cc");
-}
-#define arch_spin_lock_flags arch_spin_lock_flags
-
-#ifdef __KERNEL__
-
-/*
- * Read-write spinlocks, allowing multiple readers
- * but only one writer.
- *
- * NOTE! it is quite common to have readers in interrupts
- * but no interrupt writers. For those circumstances we
- * can "mix" irq-safe locks - any writer needs to get a
- * irq-safe write-lock, but readers can get non-irqsafe
- * read-locks.
- */
-
-/*
- * On mn10300, we implement read-write locks as a 32-bit counter
- * with the high bit (sign) being the "contended" bit.
- */
-static inline void arch_read_lock(arch_rwlock_t *rw)
-{
-#if 0 //def CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
- __build_read_lock(rw, "__read_lock_failed");
-#else
- {
- atomic_t *count = (atomic_t *)rw;
- while (atomic_dec_return(count) < 0)
- atomic_inc(count);
- }
-#endif
-}
-
-static inline void arch_write_lock(arch_rwlock_t *rw)
-{
-#if 0 //def CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
- __build_write_lock(rw, "__write_lock_failed");
-#else
- {
- atomic_t *count = (atomic_t *)rw;
- while (!atomic_sub_and_test(RW_LOCK_BIAS, count))
- atomic_add(RW_LOCK_BIAS, count);
- }
-#endif
-}
-
-static inline void arch_read_unlock(arch_rwlock_t *rw)
-{
-#if 0 //def CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
- __build_read_unlock(rw);
-#else
- {
- atomic_t *count = (atomic_t *)rw;
- atomic_inc(count);
- }
-#endif
-}
-
-static inline void arch_write_unlock(arch_rwlock_t *rw)
-{
-#if 0 //def CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
- __build_write_unlock(rw);
-#else
- {
- atomic_t *count = (atomic_t *)rw;
- atomic_add(RW_LOCK_BIAS, count);
- }
-#endif
-}
-
-static inline int arch_read_trylock(arch_rwlock_t *lock)
-{
- atomic_t *count = (atomic_t *)lock;
- atomic_dec(count);
- if (atomic_read(count) >= 0)
- return 1;
- atomic_inc(count);
- return 0;
-}
-
-static inline int arch_write_trylock(arch_rwlock_t *lock)
-{
- atomic_t *count = (atomic_t *)lock;
- if (atomic_sub_and_test(RW_LOCK_BIAS, count))
- return 1;
- atomic_add(RW_LOCK_BIAS, count);
- return 0;
-}
-
-#define _raw_spin_relax(lock) cpu_relax()
-#define _raw_read_relax(lock) cpu_relax()
-#define _raw_write_relax(lock) cpu_relax()
-
-#endif /* __KERNEL__ */
-#endif /* _ASM_SPINLOCK_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_SPINLOCK_TYPES_H
-#define _ASM_SPINLOCK_TYPES_H
-
-#ifndef __LINUX_SPINLOCK_TYPES_H
-# error "please don't include this file directly"
-#endif
-
-typedef struct arch_spinlock {
- unsigned int slock;
-} arch_spinlock_t;
-
-#define __ARCH_SPIN_LOCK_UNLOCKED { 0 }
-
-typedef struct {
- unsigned int lock;
-} arch_rwlock_t;
-
-#define __ARCH_RW_LOCK_UNLOCKED { RW_LOCK_BIAS }
-
-#endif /* _ASM_SPINLOCK_TYPES_H */
+++ /dev/null
-/* MN10300 Optimised string functions
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Modified by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_STRING_H
-#define _ASM_STRING_H
-
-#define __HAVE_ARCH_MEMSET
-#define __HAVE_ARCH_MEMCPY
-#define __HAVE_ARCH_MEMMOVE
-
-extern void *memset(void *dest, int ch, size_t count);
-extern void *memcpy(void *dest, const void *src, size_t count);
-extern void *memmove(void *dest, const void *src, size_t count);
-
-
-extern void __struct_cpy_bug(void);
-#define struct_cpy(x, y) \
-({ \
- if (sizeof(*(x)) != sizeof(*(y))) \
- __struct_cpy_bug; \
- memcpy(x, y, sizeof(*(x))); \
-})
-
-#endif /* _ASM_STRING_H */
+++ /dev/null
-/* MN10300 task switching definitions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_SWITCH_TO_H
-#define _ASM_SWITCH_TO_H
-
-#include <asm/barrier.h>
-
-struct task_struct;
-struct thread_struct;
-
-#if defined(CONFIG_FPU) && !defined(CONFIG_LAZY_SAVE_FPU)
-struct fpu_state_struct;
-extern asmlinkage void fpu_save(struct fpu_state_struct *);
-#define switch_fpu(prev, next) \
- do { \
- if ((prev)->thread.fpu_flags & THREAD_HAS_FPU) { \
- (prev)->thread.fpu_flags &= ~THREAD_HAS_FPU; \
- (prev)->thread.uregs->epsw &= ~EPSW_FE; \
- fpu_save(&(prev)->thread.fpu_state); \
- } \
- } while (0)
-#else
-#define switch_fpu(prev, next) do {} while (0)
-#endif
-
-/* context switching is now performed out-of-line in switch_to.S */
-extern asmlinkage
-struct task_struct *__switch_to(struct thread_struct *prev,
- struct thread_struct *next,
- struct task_struct *prev_task);
-
-#define switch_to(prev, next, last) \
-do { \
- switch_fpu(prev, next); \
- current->thread.wchan = (u_long) __builtin_return_address(0); \
- (last) = __switch_to(&(prev)->thread, &(next)->thread, (prev)); \
- mb(); \
- current->thread.wchan = 0; \
-} while (0)
-
-#endif /* _ASM_SWITCH_TO_H */
+++ /dev/null
-/* Access to user system call parameters and results
- *
- * See asm-generic/syscall.h for function descriptions.
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_SYSCALL_H
-#define _ASM_SYSCALL_H
-
-#include <linux/sched.h>
-#include <linux/err.h>
-
-extern const unsigned long sys_call_table[];
-
-static inline int syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
-{
- return regs->orig_d0;
-}
-
-static inline void syscall_rollback(struct task_struct *task,
- struct pt_regs *regs)
-{
- regs->d0 = regs->orig_d0;
-}
-
-static inline long syscall_get_error(struct task_struct *task,
- struct pt_regs *regs)
-{
- unsigned long error = regs->d0;
- return IS_ERR_VALUE(error) ? error : 0;
-}
-
-static inline long syscall_get_return_value(struct task_struct *task,
- struct pt_regs *regs)
-{
- return regs->d0;
-}
-
-static inline void syscall_set_return_value(struct task_struct *task,
- struct pt_regs *regs,
- int error, long val)
-{
- regs->d0 = (long) error ?: val;
-}
-
-static inline void syscall_get_arguments(struct task_struct *task,
- struct pt_regs *regs,
- unsigned int i, unsigned int n,
- unsigned long *args)
-{
- switch (i) {
- case 0:
- if (!n--) break;
- *args++ = regs->a0;
- case 1:
- if (!n--) break;
- *args++ = regs->d1;
- case 2:
- if (!n--) break;
- *args++ = regs->a3;
- case 3:
- if (!n--) break;
- *args++ = regs->a2;
- case 4:
- if (!n--) break;
- *args++ = regs->d3;
- case 5:
- if (!n--) break;
- *args++ = regs->d2;
- case 6:
- if (!n--) break;
- default:
- BUG();
- break;
- }
-}
-
-static inline void syscall_set_arguments(struct task_struct *task,
- struct pt_regs *regs,
- unsigned int i, unsigned int n,
- const unsigned long *args)
-{
- switch (i) {
- case 0:
- if (!n--) break;
- regs->a0 = *args++;
- case 1:
- if (!n--) break;
- regs->d1 = *args++;
- case 2:
- if (!n--) break;
- regs->a3 = *args++;
- case 3:
- if (!n--) break;
- regs->a2 = *args++;
- case 4:
- if (!n--) break;
- regs->d3 = *args++;
- case 5:
- if (!n--) break;
- regs->d2 = *args++;
- case 6:
- if (!n--) break;
- default:
- BUG();
- break;
- }
-}
-
-#endif /* _ASM_SYSCALL_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_TERMIOS_H
-#define _ASM_TERMIOS_H
-
-#include <uapi/asm/termios.h>
-
-/* intr=^C quit=^| erase=del kill=^U
- eof=^D vtime=\0 vmin=\1 sxtc=\0
- start=^Q stop=^S susp=^Z eol=\0
- reprint=^R discard=^U werase=^W lnext=^V
- eol2=\0
-*/
-#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
-#endif /* _ASM_TERMIOS_H */
+++ /dev/null
-/* MN10300 Low-level thread information
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_THREAD_INFO_H
-#define _ASM_THREAD_INFO_H
-
-#ifdef __KERNEL__
-
-#include <asm/page.h>
-
-#ifdef CONFIG_4KSTACKS
-#define THREAD_SIZE (4096)
-#define THREAD_SIZE_ORDER (0)
-#else
-#define THREAD_SIZE (8192)
-#define THREAD_SIZE_ORDER (1)
-#endif
-
-#define STACK_WARN (THREAD_SIZE / 8)
-
-/*
- * low level task data that entry.S needs immediate access to
- * - this struct should fit entirely inside of one cache line
- * - this struct shares the supervisor stack pages
- * - if the contents of this structure are changed, the assembly constants
- * must also be changed
- */
-#ifndef __ASSEMBLY__
-typedef struct {
- unsigned long seg;
-} mm_segment_t;
-
-struct thread_info {
- struct task_struct *task; /* main task structure */
- struct pt_regs *frame; /* current exception frame */
- unsigned long flags; /* low level flags */
- __u32 cpu; /* current CPU */
- __s32 preempt_count; /* 0 => preemptable, <0 => BUG */
-
- mm_segment_t addr_limit; /* thread address space:
- 0-0xBFFFFFFF for user-thead
- 0-0xFFFFFFFF for kernel-thread
- */
-
- __u8 supervisor_stack[0];
-};
-
-#define thread_info_to_uregs(ti) \
- ((struct pt_regs *) \
- ((unsigned long)ti + THREAD_SIZE - sizeof(struct pt_regs)))
-
-#else /* !__ASSEMBLY__ */
-
-#ifndef __ASM_OFFSETS_H__
-#include <asm/asm-offsets.h>
-#endif
-
-#endif
-
-/*
- * macros/functions for gaining access to the thread information structure
- */
-#ifndef __ASSEMBLY__
-
-#define INIT_THREAD_INFO(tsk) \
-{ \
- .task = &tsk, \
- .flags = 0, \
- .cpu = 0, \
- .preempt_count = INIT_PREEMPT_COUNT, \
- .addr_limit = KERNEL_DS, \
-}
-
-#define init_uregs \
- ((struct pt_regs *) \
- ((unsigned long) init_stack + THREAD_SIZE - sizeof(struct pt_regs)))
-
-extern struct thread_info *__current_ti;
-
-/* how to get the thread information struct from C */
-static inline __attribute__((const))
-struct thread_info *current_thread_info(void)
-{
- struct thread_info *ti;
- asm("mov sp,%0\n"
- "and %1,%0\n"
- : "=d" (ti)
- : "i" (~(THREAD_SIZE - 1))
- : "cc");
- return ti;
-}
-
-static inline __attribute__((const))
-struct pt_regs *current_frame(void)
-{
- return current_thread_info()->frame;
-}
-
-/* how to get the current stack pointer from C */
-static inline unsigned long current_stack_pointer(void)
-{
- unsigned long sp;
- asm("mov sp,%0; ":"=r" (sp));
- return sp;
-}
-
-#ifndef CONFIG_KGDB
-void arch_release_thread_stack(unsigned long *stack);
-#endif
-#define get_thread_info(ti) get_task_struct((ti)->task)
-#define put_thread_info(ti) put_task_struct((ti)->task)
-
-#else /* !__ASSEMBLY__ */
-
-#ifndef __VMLINUX_LDS__
-/* how to get the thread information struct from ASM */
-.macro GET_THREAD_INFO reg
- mov sp,\reg
- and -THREAD_SIZE,\reg
-.endm
-#endif
-#endif
-
-/*
- * thread information flags
- * - these are process state flags that various assembly files may need to
- * access
- * - pending work-to-be-done flags are in LSW
- * - other flags in MSW
- */
-#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
-#define TIF_NOTIFY_RESUME 1 /* resumption notification requested */
-#define TIF_SIGPENDING 2 /* signal pending */
-#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
-#define TIF_SINGLESTEP 4 /* restore singlestep on return to user mode */
-#define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */
-#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
-#define TIF_MEMDIE 17 /* is terminating due to OOM killer */
-
-#define _TIF_SYSCALL_TRACE +(1 << TIF_SYSCALL_TRACE)
-#define _TIF_NOTIFY_RESUME +(1 << TIF_NOTIFY_RESUME)
-#define _TIF_SIGPENDING +(1 << TIF_SIGPENDING)
-#define _TIF_NEED_RESCHED +(1 << TIF_NEED_RESCHED)
-#define _TIF_SINGLESTEP +(1 << TIF_SINGLESTEP)
-#define _TIF_POLLING_NRFLAG +(1 << TIF_POLLING_NRFLAG)
-
-#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
-#define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_THREAD_INFO_H */
+++ /dev/null
-/* AM33v2 on-board timer module registers
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_TIMER_REGS_H
-#define _ASM_TIMER_REGS_H
-
-#include <asm/cpu-regs.h>
-#include <asm/intctl-regs.h>
-
-#ifdef __KERNEL__
-
-/*
- * Timer prescalar control
- */
-#define TMPSCNT __SYSREG(0xd4003071, u8) /* timer prescaler control */
-#define TMPSCNT_ENABLE 0x80 /* timer prescaler enable */
-#define TMPSCNT_DISABLE 0x00 /* timer prescaler disable */
-
-/*
- * 8-bit timers
- */
-#define TM0MD __SYSREG(0xd4003000, u8) /* timer 0 mode register */
-#define TM0MD_SRC 0x07 /* timer source */
-#define TM0MD_SRC_IOCLK 0x00 /* - IOCLK */
-#define TM0MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */
-#define TM0MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */
-#define TM0MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */
-#define TM0MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */
-#if defined(CONFIG_AM33_2)
-#define TM0MD_SRC_TM2IO 0x03 /* - TM2IO pin input */
-#define TM0MD_SRC_TM0IO 0x07 /* - TM0IO pin input */
-#endif /* CONFIG_AM33_2 */
-#define TM0MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */
-#define TM0MD_COUNT_ENABLE 0x80 /* timer count enable */
-
-#define TM1MD __SYSREG(0xd4003001, u8) /* timer 1 mode register */
-#define TM1MD_SRC 0x07 /* timer source */
-#define TM1MD_SRC_IOCLK 0x00 /* - IOCLK */
-#define TM1MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */
-#define TM1MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */
-#define TM1MD_SRC_TM0CASCADE 0x03 /* - cascade with timer 0 */
-#define TM1MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */
-#define TM1MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */
-#if defined(CONFIG_AM33_2)
-#define TM1MD_SRC_TM1IO 0x07 /* - TM1IO pin input */
-#endif /* CONFIG_AM33_2 */
-#define TM1MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */
-#define TM1MD_COUNT_ENABLE 0x80 /* timer count enable */
-
-#define TM2MD __SYSREG(0xd4003002, u8) /* timer 2 mode register */
-#define TM2MD_SRC 0x07 /* timer source */
-#define TM2MD_SRC_IOCLK 0x00 /* - IOCLK */
-#define TM2MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */
-#define TM2MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */
-#define TM2MD_SRC_TM1CASCADE 0x03 /* - cascade with timer 1 */
-#define TM2MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */
-#define TM2MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */
-#if defined(CONFIG_AM33_2)
-#define TM2MD_SRC_TM2IO 0x07 /* - TM2IO pin input */
-#endif /* CONFIG_AM33_2 */
-#define TM2MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */
-#define TM2MD_COUNT_ENABLE 0x80 /* timer count enable */
-
-#define TM3MD __SYSREG(0xd4003003, u8) /* timer 3 mode register */
-#define TM3MD_SRC 0x07 /* timer source */
-#define TM3MD_SRC_IOCLK 0x00 /* - IOCLK */
-#define TM3MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */
-#define TM3MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */
-#define TM3MD_SRC_TM2CASCADE 0x03 /* - cascade with timer 2 */
-#define TM3MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */
-#define TM3MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */
-#define TM3MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */
-#if defined(CONFIG_AM33_2)
-#define TM3MD_SRC_TM3IO 0x07 /* - TM3IO pin input */
-#endif /* CONFIG_AM33_2 */
-#define TM3MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */
-#define TM3MD_COUNT_ENABLE 0x80 /* timer count enable */
-
-#define TM01MD __SYSREG(0xd4003000, u16) /* timer 0:1 mode register */
-
-#define TM0BR __SYSREG(0xd4003010, u8) /* timer 0 base register */
-#define TM1BR __SYSREG(0xd4003011, u8) /* timer 1 base register */
-#define TM2BR __SYSREG(0xd4003012, u8) /* timer 2 base register */
-#define TM3BR __SYSREG(0xd4003013, u8) /* timer 3 base register */
-#define TM01BR __SYSREG(0xd4003010, u16) /* timer 0:1 base register */
-
-#define TM0BC __SYSREGC(0xd4003020, u8) /* timer 0 binary counter */
-#define TM1BC __SYSREGC(0xd4003021, u8) /* timer 1 binary counter */
-#define TM2BC __SYSREGC(0xd4003022, u8) /* timer 2 binary counter */
-#define TM3BC __SYSREGC(0xd4003023, u8) /* timer 3 binary counter */
-#define TM01BC __SYSREGC(0xd4003020, u16) /* timer 0:1 binary counter */
-
-#define TM0IRQ 2 /* timer 0 IRQ */
-#define TM1IRQ 3 /* timer 1 IRQ */
-#define TM2IRQ 4 /* timer 2 IRQ */
-#define TM3IRQ 5 /* timer 3 IRQ */
-
-#define TM0ICR GxICR(TM0IRQ) /* timer 0 uflow intr ctrl reg */
-#define TM1ICR GxICR(TM1IRQ) /* timer 1 uflow intr ctrl reg */
-#define TM2ICR GxICR(TM2IRQ) /* timer 2 uflow intr ctrl reg */
-#define TM3ICR GxICR(TM3IRQ) /* timer 3 uflow intr ctrl reg */
-
-/*
- * 16-bit timers 4,5 & 7-15
- */
-#define TM4MD __SYSREG(0xd4003080, u8) /* timer 4 mode register */
-#define TM4MD_SRC 0x07 /* timer source */
-#define TM4MD_SRC_IOCLK 0x00 /* - IOCLK */
-#define TM4MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */
-#define TM4MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */
-#define TM4MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */
-#define TM4MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */
-#define TM4MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */
-#if defined(CONFIG_AM33_2)
-#define TM4MD_SRC_TM4IO 0x07 /* - TM4IO pin input */
-#endif /* CONFIG_AM33_2 */
-#define TM4MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */
-#define TM4MD_COUNT_ENABLE 0x80 /* timer count enable */
-
-#define TM5MD __SYSREG(0xd4003082, u8) /* timer 5 mode register */
-#define TM5MD_SRC 0x07 /* timer source */
-#define TM5MD_SRC_IOCLK 0x00 /* - IOCLK */
-#define TM5MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */
-#define TM5MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */
-#define TM5MD_SRC_TM4CASCADE 0x03 /* - cascade with timer 4 */
-#define TM5MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */
-#define TM5MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */
-#define TM5MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */
-#if defined(CONFIG_AM33_2)
-#define TM5MD_SRC_TM5IO 0x07 /* - TM5IO pin input */
-#else /* !CONFIG_AM33_2 */
-#define TM5MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */
-#endif /* CONFIG_AM33_2 */
-#define TM5MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */
-#define TM5MD_COUNT_ENABLE 0x80 /* timer count enable */
-
-#define TM7MD __SYSREG(0xd4003086, u8) /* timer 7 mode register */
-#define TM7MD_SRC 0x07 /* timer source */
-#define TM7MD_SRC_IOCLK 0x00 /* - IOCLK */
-#define TM7MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */
-#define TM7MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */
-#define TM7MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */
-#define TM7MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */
-#define TM7MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */
-#if defined(CONFIG_AM33_2)
-#define TM7MD_SRC_TM7IO 0x07 /* - TM7IO pin input */
-#endif /* CONFIG_AM33_2 */
-#define TM7MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */
-#define TM7MD_COUNT_ENABLE 0x80 /* timer count enable */
-
-#define TM8MD __SYSREG(0xd4003088, u8) /* timer 8 mode register */
-#define TM8MD_SRC 0x07 /* timer source */
-#define TM8MD_SRC_IOCLK 0x00 /* - IOCLK */
-#define TM8MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */
-#define TM8MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */
-#define TM8MD_SRC_TM7CASCADE 0x03 /* - cascade with timer 7 */
-#define TM8MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */
-#define TM8MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */
-#define TM8MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */
-#if defined(CONFIG_AM33_2)
-#define TM8MD_SRC_TM8IO 0x07 /* - TM8IO pin input */
-#else /* !CONFIG_AM33_2 */
-#define TM8MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */
-#endif /* CONFIG_AM33_2 */
-#define TM8MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */
-#define TM8MD_COUNT_ENABLE 0x80 /* timer count enable */
-
-#define TM9MD __SYSREG(0xd400308a, u8) /* timer 9 mode register */
-#define TM9MD_SRC 0x07 /* timer source */
-#define TM9MD_SRC_IOCLK 0x00 /* - IOCLK */
-#define TM9MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */
-#define TM9MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */
-#define TM9MD_SRC_TM8CASCADE 0x03 /* - cascade with timer 8 */
-#define TM9MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */
-#define TM9MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */
-#define TM9MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */
-#if defined(CONFIG_AM33_2)
-#define TM9MD_SRC_TM9IO 0x07 /* - TM9IO pin input */
-#else /* !CONFIG_AM33_2 */
-#define TM9MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */
-#endif /* CONFIG_AM33_2 */
-#define TM9MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */
-#define TM9MD_COUNT_ENABLE 0x80 /* timer count enable */
-
-#define TM10MD __SYSREG(0xd400308c, u8) /* timer 10 mode register */
-#define TM10MD_SRC 0x07 /* timer source */
-#define TM10MD_SRC_IOCLK 0x00 /* - IOCLK */
-#define TM10MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */
-#define TM10MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */
-#define TM10MD_SRC_TM9CASCADE 0x03 /* - cascade with timer 9 */
-#define TM10MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */
-#define TM10MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */
-#define TM10MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */
-#if defined(CONFIG_AM33_2)
-#define TM10MD_SRC_TM10IO 0x07 /* - TM10IO pin input */
-#else /* !CONFIG_AM33_2 */
-#define TM10MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */
-#endif /* CONFIG_AM33_2 */
-#define TM10MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */
-#define TM10MD_COUNT_ENABLE 0x80 /* timer count enable */
-
-#define TM11MD __SYSREG(0xd400308e, u8) /* timer 11 mode register */
-#define TM11MD_SRC 0x07 /* timer source */
-#define TM11MD_SRC_IOCLK 0x00 /* - IOCLK */
-#define TM11MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */
-#define TM11MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */
-#define TM11MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */
-#define TM11MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */
-#define TM11MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */
-#if defined(CONFIG_AM33_2)
-#define TM11MD_SRC_TM11IO 0x07 /* - TM11IO pin input */
-#else /* !CONFIG_AM33_2 */
-#define TM11MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */
-#endif /* CONFIG_AM33_2 */
-#define TM11MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */
-#define TM11MD_COUNT_ENABLE 0x80 /* timer count enable */
-
-#if defined(CONFIG_AM34_2)
-#define TM12MD __SYSREG(0xd4003180, u8) /* timer 11 mode register */
-#define TM12MD_SRC 0x07 /* timer source */
-#define TM12MD_SRC_IOCLK 0x00 /* - IOCLK */
-#define TM12MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */
-#define TM12MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */
-#define TM12MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */
-#define TM12MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */
-#define TM12MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */
-#define TM12MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */
-#define TM12MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */
-#define TM12MD_COUNT_ENABLE 0x80 /* timer count enable */
-
-#define TM13MD __SYSREG(0xd4003182, u8) /* timer 11 mode register */
-#define TM13MD_SRC 0x07 /* timer source */
-#define TM13MD_SRC_IOCLK 0x00 /* - IOCLK */
-#define TM13MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */
-#define TM13MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */
-#define TM13MD_SRC_TM12CASCADE 0x03 /* - cascade with timer 12 */
-#define TM13MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */
-#define TM13MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */
-#define TM13MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */
-#define TM13MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */
-#define TM13MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */
-#define TM13MD_COUNT_ENABLE 0x80 /* timer count enable */
-
-#define TM14MD __SYSREG(0xd4003184, u8) /* timer 11 mode register */
-#define TM14MD_SRC 0x07 /* timer source */
-#define TM14MD_SRC_IOCLK 0x00 /* - IOCLK */
-#define TM14MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */
-#define TM14MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */
-#define TM14MD_SRC_TM13CASCADE 0x03 /* - cascade with timer 13 */
-#define TM14MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */
-#define TM14MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */
-#define TM14MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */
-#define TM14MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */
-#define TM14MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */
-#define TM14MD_COUNT_ENABLE 0x80 /* timer count enable */
-
-#define TM15MD __SYSREG(0xd4003186, u8) /* timer 11 mode register */
-#define TM15MD_SRC 0x07 /* timer source */
-#define TM15MD_SRC_IOCLK 0x00 /* - IOCLK */
-#define TM15MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */
-#define TM15MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */
-#define TM15MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */
-#define TM15MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */
-#define TM15MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */
-#define TM15MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */
-#define TM15MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */
-#define TM15MD_COUNT_ENABLE 0x80 /* timer count enable */
-#endif /* CONFIG_AM34_2 */
-
-
-#define TM4BR __SYSREG(0xd4003090, u16) /* timer 4 base register */
-#define TM5BR __SYSREG(0xd4003092, u16) /* timer 5 base register */
-#define TM45BR __SYSREG(0xd4003090, u32) /* timer 4:5 base register */
-#define TM7BR __SYSREG(0xd4003096, u16) /* timer 7 base register */
-#define TM8BR __SYSREG(0xd4003098, u16) /* timer 8 base register */
-#define TM9BR __SYSREG(0xd400309a, u16) /* timer 9 base register */
-#define TM89BR __SYSREG(0xd4003098, u32) /* timer 8:9 base register */
-#define TM10BR __SYSREG(0xd400309c, u16) /* timer 10 base register */
-#define TM11BR __SYSREG(0xd400309e, u16) /* timer 11 base register */
-#if defined(CONFIG_AM34_2)
-#define TM12BR __SYSREG(0xd4003190, u16) /* timer 12 base register */
-#define TM13BR __SYSREG(0xd4003192, u16) /* timer 13 base register */
-#define TM14BR __SYSREG(0xd4003194, u16) /* timer 14 base register */
-#define TM15BR __SYSREG(0xd4003196, u16) /* timer 15 base register */
-#endif /* CONFIG_AM34_2 */
-
-#define TM4BC __SYSREG(0xd40030a0, u16) /* timer 4 binary counter */
-#define TM5BC __SYSREG(0xd40030a2, u16) /* timer 5 binary counter */
-#define TM45BC __SYSREG(0xd40030a0, u32) /* timer 4:5 binary counter */
-#define TM7BC __SYSREG(0xd40030a6, u16) /* timer 7 binary counter */
-#define TM8BC __SYSREG(0xd40030a8, u16) /* timer 8 binary counter */
-#define TM9BC __SYSREG(0xd40030aa, u16) /* timer 9 binary counter */
-#define TM89BC __SYSREG(0xd40030a8, u32) /* timer 8:9 binary counter */
-#define TM10BC __SYSREG(0xd40030ac, u16) /* timer 10 binary counter */
-#define TM11BC __SYSREG(0xd40030ae, u16) /* timer 11 binary counter */
-#if defined(CONFIG_AM34_2)
-#define TM12BC __SYSREG(0xd40031a0, u16) /* timer 12 binary counter */
-#define TM13BC __SYSREG(0xd40031a2, u16) /* timer 13 binary counter */
-#define TM14BC __SYSREG(0xd40031a4, u16) /* timer 14 binary counter */
-#define TM15BC __SYSREG(0xd40031a6, u16) /* timer 15 binary counter */
-#endif /* CONFIG_AM34_2 */
-
-#define TM4IRQ 6 /* timer 4 IRQ */
-#define TM5IRQ 7 /* timer 5 IRQ */
-#define TM7IRQ 11 /* timer 7 IRQ */
-#define TM8IRQ 12 /* timer 8 IRQ */
-#define TM9IRQ 13 /* timer 9 IRQ */
-#define TM10IRQ 14 /* timer 10 IRQ */
-#define TM11IRQ 15 /* timer 11 IRQ */
-#if defined(CONFIG_AM34_2)
-#define TM12IRQ 64 /* timer 12 IRQ */
-#define TM13IRQ 65 /* timer 13 IRQ */
-#define TM14IRQ 66 /* timer 14 IRQ */
-#define TM15IRQ 67 /* timer 15 IRQ */
-#endif /* CONFIG_AM34_2 */
-
-#define TM4ICR GxICR(TM4IRQ) /* timer 4 uflow intr ctrl reg */
-#define TM5ICR GxICR(TM5IRQ) /* timer 5 uflow intr ctrl reg */
-#define TM7ICR GxICR(TM7IRQ) /* timer 7 uflow intr ctrl reg */
-#define TM8ICR GxICR(TM8IRQ) /* timer 8 uflow intr ctrl reg */
-#define TM9ICR GxICR(TM9IRQ) /* timer 9 uflow intr ctrl reg */
-#define TM10ICR GxICR(TM10IRQ) /* timer 10 uflow intr ctrl reg */
-#define TM11ICR GxICR(TM11IRQ) /* timer 11 uflow intr ctrl reg */
-#if defined(CONFIG_AM34_2)
-#define TM12ICR GxICR(TM12IRQ) /* timer 12 uflow intr ctrl reg */
-#define TM13ICR GxICR(TM13IRQ) /* timer 13 uflow intr ctrl reg */
-#define TM14ICR GxICR(TM14IRQ) /* timer 14 uflow intr ctrl reg */
-#define TM15ICR GxICR(TM15IRQ) /* timer 15 uflow intr ctrl reg */
-#endif /* CONFIG_AM34_2 */
-
-/*
- * 16-bit timer 6
- */
-#define TM6MD __SYSREG(0xd4003084, u16) /* timer6 mode register */
-#define TM6MD_SRC 0x0007 /* timer source */
-#define TM6MD_SRC_IOCLK 0x0000 /* - IOCLK */
-#define TM6MD_SRC_IOCLK_8 0x0001 /* - 1/8 IOCLK */
-#define TM6MD_SRC_IOCLK_32 0x0002 /* - 1/32 IOCLK */
-#define TM6MD_SRC_TM0UFLOW 0x0004 /* - timer 0 underflow */
-#define TM6MD_SRC_TM1UFLOW 0x0005 /* - timer 1 underflow */
-#define TM6MD_SRC_TM2UFLOW 0x0006 /* - timer 2 underflow */
-#if defined(CONFIG_AM33_2)
-/* #define TM6MD_SRC_TM6IOB_BOTH 0x0006 */ /* - TM6IOB pin input (both edges) */
-#define TM6MD_SRC_TM6IOB_SINGLE 0x0007 /* - TM6IOB pin input (single edge) */
-#endif /* CONFIG_AM33_2 */
-#define TM6MD_ONESHOT_ENABLE 0x0040 /* oneshot count */
-#define TM6MD_CLR_ENABLE 0x0010 /* clear count enable */
-#if defined(CONFIG_AM33_2)
-#define TM6MD_TRIG_ENABLE 0x0080 /* TM6IOB pin trigger enable */
-#define TM6MD_PWM 0x3800 /* PWM output mode */
-#define TM6MD_PWM_DIS 0x0000 /* - disabled */
-#define TM6MD_PWM_10BIT 0x1000 /* - 10 bits mode */
-#define TM6MD_PWM_11BIT 0x1800 /* - 11 bits mode */
-#define TM6MD_PWM_12BIT 0x3000 /* - 12 bits mode */
-#define TM6MD_PWM_14BIT 0x3800 /* - 14 bits mode */
-#endif /* CONFIG_AM33_2 */
-
-#define TM6MD_INIT_COUNTER 0x4000 /* initialize TMnBC to zero */
-#define TM6MD_COUNT_ENABLE 0x8000 /* timer count enable */
-
-#define TM6MDA __SYSREG(0xd40030b4, u8) /* timer6 cmp/cap A mode reg */
-#define TM6MDA_MODE_CMP_SINGLE 0x00 /* - compare, single buffer mode */
-#define TM6MDA_MODE_CMP_DOUBLE 0x40 /* - compare, double buffer mode */
-#if defined(CONFIG_AM33_2)
-#define TM6MDA_OUT 0x07 /* output select */
-#define TM6MDA_OUT_SETA_RESETB 0x00 /* - set at match A, reset at match B */
-#define TM6MDA_OUT_SETA_RESETOV 0x01 /* - set at match A, reset at overflow */
-#define TM6MDA_OUT_SETA 0x02 /* - set at match A */
-#define TM6MDA_OUT_RESETA 0x03 /* - reset at match A */
-#define TM6MDA_OUT_TOGGLE 0x04 /* - toggle on match A */
-#define TM6MDA_MODE 0xc0 /* compare A register mode */
-#define TM6MDA_MODE_CAP_S_EDGE 0x80 /* - capture, single edge mode */
-#define TM6MDA_MODE_CAP_D_EDGE 0xc0 /* - capture, double edge mode */
-#define TM6MDA_EDGE 0x20 /* compare A edge select */
-#define TM6MDA_EDGE_FALLING 0x00 /* capture on falling edge */
-#define TM6MDA_EDGE_RISING 0x20 /* capture on rising edge */
-#define TM6MDA_CAPTURE_ENABLE 0x10 /* capture enable */
-#else /* !CONFIG_AM33_2 */
-#define TM6MDA_MODE 0x40 /* compare A register mode */
-#endif /* CONFIG_AM33_2 */
-
-#define TM6MDB __SYSREG(0xd40030b5, u8) /* timer6 cmp/cap B mode reg */
-#define TM6MDB_MODE_CMP_SINGLE 0x00 /* - compare, single buffer mode */
-#define TM6MDB_MODE_CMP_DOUBLE 0x40 /* - compare, double buffer mode */
-#if defined(CONFIG_AM33_2)
-#define TM6MDB_OUT 0x07 /* output select */
-#define TM6MDB_OUT_SETB_RESETA 0x00 /* - set at match B, reset at match A */
-#define TM6MDB_OUT_SETB_RESETOV 0x01 /* - set at match B */
-#define TM6MDB_OUT_RESETB 0x03 /* - reset at match B */
-#define TM6MDB_OUT_TOGGLE 0x04 /* - toggle on match B */
-#define TM6MDB_MODE 0xc0 /* compare B register mode */
-#define TM6MDB_MODE_CAP_S_EDGE 0x80 /* - capture, single edge mode */
-#define TM6MDB_MODE_CAP_D_EDGE 0xc0 /* - capture, double edge mode */
-#define TM6MDB_EDGE 0x20 /* compare B edge select */
-#define TM6MDB_EDGE_FALLING 0x00 /* capture on falling edge */
-#define TM6MDB_EDGE_RISING 0x20 /* capture on rising edge */
-#define TM6MDB_CAPTURE_ENABLE 0x10 /* capture enable */
-#else /* !CONFIG_AM33_2 */
-#define TM6MDB_MODE 0x40 /* compare B register mode */
-#endif /* CONFIG_AM33_2 */
-
-#define TM6CA __SYSREG(0xd40030c4, u16) /* timer6 cmp/capture reg A */
-#define TM6CB __SYSREG(0xd40030d4, u16) /* timer6 cmp/capture reg B */
-#define TM6BC __SYSREG(0xd40030a4, u16) /* timer6 binary counter */
-
-#define TM6IRQ 6 /* timer 6 IRQ */
-#define TM6AIRQ 9 /* timer 6A IRQ */
-#define TM6BIRQ 10 /* timer 6B IRQ */
-
-#define TM6ICR GxICR(TM6IRQ) /* timer 6 uflow intr ctrl reg */
-#define TM6AICR GxICR(TM6AIRQ) /* timer 6A intr control reg */
-#define TM6BICR GxICR(TM6BIRQ) /* timer 6B intr control reg */
-
-#if defined(CONFIG_AM34_2)
-/*
- * MTM: OS Tick-Timer
- */
-#define TMTMD __SYSREG(0xd4004100, u8) /* Tick Timer mode register */
-#define TMTMD_TMTLDE 0x40 /* initialize TMTBC = TMTBR */
-#define TMTMD_TMTCNE 0x80 /* timer count enable */
-
-#define TMTBR __SYSREG(0xd4004110, u32) /* Tick Timer mode reg */
-#define TMTBC __SYSREG(0xd4004120, u32) /* Tick Timer mode reg */
-
-/*
- * MTM: OS Timestamp-Timer
- */
-#define TMSMD __SYSREG(0xd4004140, u8) /* Tick Timer mode register */
-#define TMSMD_TMSLDE 0x40 /* initialize TMSBC = TMSBR */
-#define TMSMD_TMSCNE 0x80 /* timer count enable */
-
-#define TMSBR __SYSREG(0xd4004150, u32) /* Tick Timer mode register */
-#define TMSBC __SYSREG(0xd4004160, u32) /* Tick Timer mode register */
-
-#define TMTIRQ 119 /* OS Tick timer IRQ */
-#define TMSIRQ 120 /* Timestamp timer IRQ */
-
-#define TMTICR GxICR(TMTIRQ) /* OS Tick timer uflow intr ctrl reg */
-#define TMSICR GxICR(TMSIRQ) /* Timestamp timer uflow intr ctrl reg */
-#endif /* CONFIG_AM34_2 */
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_TIMER_REGS_H */
+++ /dev/null
-/* MN10300 Architecture time management specifications
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_TIMEX_H
-#define _ASM_TIMEX_H
-
-#include <unit/timex.h>
-
-#define TICK_SIZE (tick_nsec / 1000)
-
-#define CLOCK_TICK_RATE MN10300_JCCLK /* Underlying HZ */
-
-#ifdef __KERNEL__
-
-extern cycles_t cacheflush_time;
-
-static inline cycles_t get_cycles(void)
-{
- return read_timestamp_counter();
-}
-
-extern int init_clockevents(void);
-extern int init_clocksource(void);
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_TIMEX_H */
+++ /dev/null
-/* MN10300 TLB definitions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_TLB_H
-#define _ASM_TLB_H
-
-#include <asm/tlbflush.h>
-
-extern void check_pgt_cache(void);
-
-/*
- * we don't need any special per-pte or per-vma handling...
- */
-#define tlb_start_vma(tlb, vma) do { } while (0)
-#define tlb_end_vma(tlb, vma) do { } while (0)
-#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
-
-/*
- * .. because we flush the whole mm when it fills up
- */
-#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
-
-/* for now, just use the generic stuff */
-#include <asm-generic/tlb.h>
-
-#endif /* _ASM_TLB_H */
+++ /dev/null
-/* MN10300 TLB flushing functions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_TLBFLUSH_H
-#define _ASM_TLBFLUSH_H
-
-#include <linux/mm.h>
-#include <asm/processor.h>
-
-struct tlb_state {
- struct mm_struct *active_mm;
- int state;
-};
-DECLARE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate);
-
-/**
- * local_flush_tlb - Flush the current MM's entries from the local CPU's TLBs
- */
-static inline void local_flush_tlb(void)
-{
- int w;
- asm volatile(
- " mov %1,%0 \n"
- " or %2,%0 \n"
- " mov %0,%1 \n"
- : "=d"(w)
- : "m"(MMUCTR), "i"(MMUCTR_IIV|MMUCTR_DIV)
- : "cc", "memory");
-}
-
-/**
- * local_flush_tlb_all - Flush all entries from the local CPU's TLBs
- */
-static inline void local_flush_tlb_all(void)
-{
- local_flush_tlb();
-}
-
-/**
- * local_flush_tlb_one - Flush one entry from the local CPU's TLBs
- */
-static inline void local_flush_tlb_one(unsigned long addr)
-{
- local_flush_tlb();
-}
-
-/**
- * local_flush_tlb_page - Flush a page's entry from the local CPU's TLBs
- * @mm: The MM to flush for
- * @addr: The address of the target page in RAM (not its page struct)
- */
-static inline
-void local_flush_tlb_page(struct mm_struct *mm, unsigned long addr)
-{
- unsigned long pteu, flags, cnx;
-
- addr &= PAGE_MASK;
-
- local_irq_save(flags);
-
- cnx = 1;
-#ifdef CONFIG_MN10300_TLB_USE_PIDR
- cnx = mm->context.tlbpid[smp_processor_id()];
-#endif
- if (cnx) {
- pteu = addr;
-#ifdef CONFIG_MN10300_TLB_USE_PIDR
- pteu |= cnx & xPTEU_PID;
-#endif
- IPTEU = pteu;
- DPTEU = pteu;
- if (IPTEL & xPTEL_V)
- IPTEL = 0;
- if (DPTEL & xPTEL_V)
- DPTEL = 0;
- }
- local_irq_restore(flags);
-}
-
-/*
- * TLB flushing:
- *
- * - flush_tlb() flushes the current mm struct TLBs
- * - flush_tlb_all() flushes all processes TLBs
- * - flush_tlb_mm(mm) flushes the specified mm context TLB's
- * - flush_tlb_page(vma, vmaddr) flushes one page
- * - flush_tlb_range(mm, start, end) flushes a range of pages
- * - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
- */
-#ifdef CONFIG_SMP
-
-#include <asm/smp.h>
-
-extern void flush_tlb_all(void);
-extern void flush_tlb_current_task(void);
-extern void flush_tlb_mm(struct mm_struct *);
-extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
-
-#define flush_tlb() flush_tlb_current_task()
-
-static inline void flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
- flush_tlb_mm(vma->vm_mm);
-}
-
-#else /* CONFIG_SMP */
-
-static inline void flush_tlb_all(void)
-{
- preempt_disable();
- local_flush_tlb_all();
- preempt_enable();
-}
-
-static inline void flush_tlb_mm(struct mm_struct *mm)
-{
- preempt_disable();
- local_flush_tlb_all();
- preempt_enable();
-}
-
-static inline void flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
- preempt_disable();
- local_flush_tlb_all();
- preempt_enable();
-}
-
-#define flush_tlb_page(vma, addr) local_flush_tlb_page((vma)->vm_mm, addr)
-#define flush_tlb() flush_tlb_all()
-
-#endif /* CONFIG_SMP */
-
-static inline void flush_tlb_kernel_range(unsigned long start,
- unsigned long end)
-{
- flush_tlb_all();
-}
-
-static inline void flush_tlb_pgtables(struct mm_struct *mm,
- unsigned long start, unsigned long end)
-{
-}
-
-#endif /* _ASM_TLBFLUSH_H */
+++ /dev/null
-#include <asm-generic/topology.h>
+++ /dev/null
-/* MN10300 Basic type definitions
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_TYPES_H
-#define _ASM_TYPES_H
-
-#include <uapi/asm/types.h>
-
-/*
- * These aren't exported outside the kernel to avoid name space clashes
- */
-
-#define BITS_PER_LONG 32
-
-#endif /* _ASM_TYPES_H */
+++ /dev/null
-/* MN10300 userspace access functions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_UACCESS_H
-#define _ASM_UACCESS_H
-
-/*
- * User space memory access functions
- */
-#include <linux/kernel.h>
-#include <asm/page.h>
-
-/*
- * The fs value determines whether argument validity checking should be
- * performed or not. If get_fs() == USER_DS, checking is performed, with
- * get_fs() == KERNEL_DS, checking is bypassed.
- *
- * For historical reasons, these macros are grossly misnamed.
- */
-#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
-
-#define KERNEL_XDS MAKE_MM_SEG(0xBFFFFFFF)
-#define KERNEL_DS MAKE_MM_SEG(0x9FFFFFFF)
-#define USER_DS MAKE_MM_SEG(TASK_SIZE)
-
-#define get_ds() (KERNEL_DS)
-#define get_fs() (current_thread_info()->addr_limit)
-#define set_fs(x) (current_thread_info()->addr_limit = (x))
-
-#define segment_eq(a, b) ((a).seg == (b).seg)
-
-#define __addr_ok(addr) \
- ((unsigned long)(addr) < (current_thread_info()->addr_limit.seg))
-
-/*
- * check that a range of addresses falls within the current address limit
- */
-static inline int ___range_ok(unsigned long addr, unsigned int size)
-{
- int flag = 1, tmp;
-
- asm(" add %3,%1 \n" /* set C-flag if addr + size > 4Gb */
- " bcs 0f \n"
- " cmp %4,%1 \n" /* jump if addr+size>limit (error) */
- " bhi 0f \n"
- " clr %0 \n" /* mark okay */
- "0: \n"
- : "=r"(flag), "=&r"(tmp)
- : "1"(addr), "ir"(size),
- "r"(current_thread_info()->addr_limit.seg), "0"(flag)
- : "cc"
- );
-
- return flag;
-}
-
-#define __range_ok(addr, size) ___range_ok((unsigned long)(addr), (u32)(size))
-
-#define access_ok(type, addr, size) (__range_ok((addr), (size)) == 0)
-#define __access_ok(addr, size) (__range_ok((addr), (size)) == 0)
-
-#include <asm/extable.h>
-
-#define put_user(x, ptr) __put_user_check((x), (ptr), sizeof(*(ptr)))
-#define get_user(x, ptr) __get_user_check((x), (ptr), sizeof(*(ptr)))
-
-/*
- * The "__xxx" versions do not do address space checking, useful when
- * doing multiple accesses to the same area (the user has to do the
- * checks by hand with "access_ok()")
- */
-#define __put_user(x, ptr) __put_user_nocheck((x), (ptr), sizeof(*(ptr)))
-#define __get_user(x, ptr) __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
-
-struct __large_struct { unsigned long buf[100]; };
-#define __m(x) (*(struct __large_struct *)(x))
-
-#define __get_user_nocheck(x, ptr, size) \
-({ \
- unsigned long __gu_addr; \
- int __gu_err; \
- __gu_addr = (unsigned long) (ptr); \
- switch (size) { \
- case 1: { \
- unsigned char __gu_val; \
- __get_user_asm("bu"); \
- (x) = *(__force __typeof__(*(ptr))*) &__gu_val; \
- break; \
- } \
- case 2: { \
- unsigned short __gu_val; \
- __get_user_asm("hu"); \
- (x) = *(__force __typeof__(*(ptr))*) &__gu_val; \
- break; \
- } \
- case 4: { \
- unsigned int __gu_val; \
- __get_user_asm(""); \
- (x) = *(__force __typeof__(*(ptr))*) &__gu_val; \
- break; \
- } \
- default: \
- __get_user_unknown(); \
- break; \
- } \
- __gu_err; \
-})
-
-#define __get_user_check(x, ptr, size) \
-({ \
- const __typeof__(*(ptr))* __guc_ptr = (ptr); \
- int _e; \
- if (likely(__access_ok((unsigned long) __guc_ptr, (size)))) \
- _e = __get_user_nocheck((x), __guc_ptr, (size)); \
- else { \
- _e = -EFAULT; \
- (x) = (__typeof__(x))0; \
- } \
- _e; \
-})
-
-#define __get_user_asm(INSN) \
-({ \
- asm volatile( \
- "1:\n" \
- " mov"INSN" %2,%1\n" \
- " mov 0,%0\n" \
- "2:\n" \
- " .section .fixup,\"ax\"\n" \
- "3:\n\t" \
- " mov 0,%1\n" \
- " mov %3,%0\n" \
- " jmp 2b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
- " .balign 4\n" \
- " .long 1b, 3b\n" \
- " .previous" \
- : "=&r" (__gu_err), "=&r" (__gu_val) \
- : "m" (__m(__gu_addr)), "i" (-EFAULT)); \
-})
-
-extern int __get_user_unknown(void);
-
-#define __put_user_nocheck(x, ptr, size) \
-({ \
- union { \
- __typeof__(*(ptr)) val; \
- u32 bits[2]; \
- } __pu_val; \
- unsigned long __pu_addr; \
- int __pu_err; \
- __pu_val.val = (x); \
- __pu_addr = (unsigned long) (ptr); \
- switch (size) { \
- case 1: __put_user_asm("bu"); break; \
- case 2: __put_user_asm("hu"); break; \
- case 4: __put_user_asm("" ); break; \
- case 8: __put_user_asm8(); break; \
- default: __pu_err = __put_user_unknown(); break; \
- } \
- __pu_err; \
-})
-
-#define __put_user_check(x, ptr, size) \
-({ \
- union { \
- __typeof__(*(ptr)) val; \
- u32 bits[2]; \
- } __pu_val; \
- unsigned long __pu_addr; \
- int __pu_err; \
- __pu_val.val = (x); \
- __pu_addr = (unsigned long) (ptr); \
- if (likely(__access_ok(__pu_addr, size))) { \
- switch (size) { \
- case 1: __put_user_asm("bu"); break; \
- case 2: __put_user_asm("hu"); break; \
- case 4: __put_user_asm("" ); break; \
- case 8: __put_user_asm8(); break; \
- default: __pu_err = __put_user_unknown(); break; \
- } \
- } \
- else { \
- __pu_err = -EFAULT; \
- } \
- __pu_err; \
-})
-
-#define __put_user_asm(INSN) \
-({ \
- asm volatile( \
- "1:\n" \
- " mov"INSN" %1,%2\n" \
- " mov 0,%0\n" \
- "2:\n" \
- " .section .fixup,\"ax\"\n" \
- "3:\n" \
- " mov %3,%0\n" \
- " jmp 2b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
- " .balign 4\n" \
- " .long 1b, 3b\n" \
- " .previous" \
- : "=&r" (__pu_err) \
- : "r" (__pu_val.val), "m" (__m(__pu_addr)), \
- "i" (-EFAULT) \
- ); \
-})
-
-#define __put_user_asm8() \
-({ \
- asm volatile( \
- "1: mov %1,%3 \n" \
- "2: mov %2,%4 \n" \
- " mov 0,%0 \n" \
- "3: \n" \
- " .section .fixup,\"ax\" \n" \
- "4: \n" \
- " mov %5,%0 \n" \
- " jmp 3b \n" \
- " .previous \n" \
- " .section __ex_table,\"a\"\n" \
- " .balign 4 \n" \
- " .long 1b, 4b \n" \
- " .long 2b, 4b \n" \
- " .previous \n" \
- : "=&r" (__pu_err) \
- : "r" (__pu_val.bits[0]), "r" (__pu_val.bits[1]), \
- "m" (__m(__pu_addr)), "m" (__m(__pu_addr+4)), \
- "i" (-EFAULT) \
- ); \
-})
-
-extern int __put_user_unknown(void);
-
-
-/*
- * Copy To/From Userspace
- */
-/* Generic arbitrary sized copy. */
-#define __copy_user(to, from, size) \
-do { \
- if (size) { \
- void *__to = to; \
- const void *__from = from; \
- int w; \
- asm volatile( \
- "0: movbu (%0),%3;\n" \
- "1: movbu %3,(%1);\n" \
- " inc %0;\n" \
- " inc %1;\n" \
- " add -1,%2;\n" \
- " bne 0b;\n" \
- "2:\n" \
- " .section .fixup,\"ax\"\n" \
- "3: jmp 2b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
- " .balign 4\n" \
- " .long 0b,3b\n" \
- " .long 1b,3b\n" \
- " .previous\n" \
- : "=a"(__from), "=a"(__to), "=r"(size), "=&r"(w)\
- : "0"(__from), "1"(__to), "2"(size) \
- : "cc", "memory"); \
- } \
-} while (0)
-
-static inline unsigned long
-raw_copy_from_user(void *to, const void __user *from, unsigned long n)
-{
- __copy_user(to, from, n);
- return n;
-}
-
-static inline unsigned long
-raw_copy_to_user(void __user *to, const void *from, unsigned long n)
-{
- __copy_user(to, from, n);
- return n;
-}
-
-extern long strncpy_from_user(char *dst, const char __user *src, long count);
-extern long strnlen_user(const char __user *str, long n);
-extern unsigned long clear_user(void __user *mem, unsigned long len);
-extern unsigned long __clear_user(void __user *mem, unsigned long len);
-
-#endif /* _ASM_UACCESS_H */
+++ /dev/null
-/* MN10300 User context
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_UCONTEXT_H
-#define _ASM_UCONTEXT_H
-
-struct ucontext {
- unsigned long uc_flags;
- struct ucontext *uc_link;
- stack_t uc_stack;
- struct sigcontext uc_mcontext;
- sigset_t uc_sigmask; /* mask last for extensibility */
-};
-
-#endif /* _ASM_UCONTEXT_H */
+++ /dev/null
-/* MN10300 Unaligned memory access handling
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_MN10300_UNALIGNED_H
-#define _ASM_MN10300_UNALIGNED_H
-
-#include <linux/unaligned/access_ok.h>
-#include <linux/unaligned/generic.h>
-
-#define get_unaligned __get_unaligned_le
-#define put_unaligned __put_unaligned_le
-
-#endif /* _ASM_MN10300_UNALIGNED_H */
+++ /dev/null
-/* MN10300 System call number list
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_UNISTD_H
-#define _ASM_UNISTD_H
-
-#include <uapi/asm/unistd.h>
-
-
-#define NR_syscalls 340
-
-/*
- * specify the deprecated syscalls we want to support on this arch
- */
-#define __ARCH_WANT_OLD_READDIR
-#define __ARCH_WANT_OLD_STAT
-#define __ARCH_WANT_STAT64
-#define __ARCH_WANT_SYS_ALARM
-#define __ARCH_WANT_SYS_GETHOSTNAME
-#define __ARCH_WANT_SYS_IPC
-#define __ARCH_WANT_SYS_PAUSE
-#define __ARCH_WANT_SYS_SIGNAL
-#define __ARCH_WANT_SYS_TIME
-#define __ARCH_WANT_SYS_UTIME
-#define __ARCH_WANT_SYS_WAITPID
-#define __ARCH_WANT_SYS_SOCKETCALL
-#define __ARCH_WANT_SYS_FADVISE64
-#define __ARCH_WANT_SYS_GETPGRP
-#define __ARCH_WANT_SYS_LLSEEK
-#define __ARCH_WANT_SYS_NICE
-#define __ARCH_WANT_SYS_OLD_GETRLIMIT
-#define __ARCH_WANT_SYS_OLD_SELECT
-#define __ARCH_WANT_SYS_OLDUMOUNT
-#define __ARCH_WANT_SYS_SIGPENDING
-#define __ARCH_WANT_SYS_SIGPROCMASK
-#define __ARCH_WANT_SYS_FORK
-#define __ARCH_WANT_SYS_VFORK
-#define __ARCH_WANT_SYS_CLONE
-
-#endif /* _ASM_UNISTD_H */
+++ /dev/null
-/* MN10300 User process data
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_USER_H
-#define _ASM_USER_H
-
-#include <asm/page.h>
-#include <linux/ptrace.h>
-
-#ifndef __ASSEMBLY__
-/*
- * When the kernel dumps core, it starts by dumping the user struct - this will
- * be used by gdb to figure out where the data and stack segments are within
- * the file, and what virtual addresses to use.
- */
-struct user {
- /* We start with the registers, to mimic the way that "memory" is
- * returned from the ptrace(3,...) function.
- */
- struct pt_regs regs; /* Where the registers are actually stored */
-
- /* The rest of this junk is to help gdb figure out what goes where */
- unsigned long int u_tsize; /* Text segment size (pages). */
- unsigned long int u_dsize; /* Data segment size (pages). */
- unsigned long int u_ssize; /* Stack segment size (pages). */
- unsigned long start_code; /* Starting virtual address of text. */
- unsigned long start_stack; /* Starting virtual address of stack area.
- This is actually the bottom of the stack,
- the top of the stack is always found in the
- esp register. */
- long int signal; /* Signal that caused the core dump. */
- int reserved; /* No longer used */
- struct user_pt_regs *u_ar0; /* Used by gdb to help find the values for */
-
- /* the registers */
- unsigned long magic; /* To uniquely identify a core file */
- char u_comm[32]; /* User command that was responsible */
-};
-#endif
-
-#define NBPG PAGE_SIZE
-#define UPAGES 1
-#define HOST_TEXT_START_ADDR +(u.start_code)
-#define HOST_STACK_END_ADDR +(u.start_stack + u.u_ssize * NBPG)
-
-#endif /* _ASM_USER_H */
+++ /dev/null
-/* MN10300 VGA register definitions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_VGA_H
-#define _ASM_VGA_H
-
-
-
-#endif /* _ASM_VGA_H */
+++ /dev/null
-#include <asm-generic/xor.h>
+++ /dev/null
-# UAPI Header export list
-include include/uapi/asm-generic/Kbuild.asm
-
-generic-y += bpf_perf_event.h
-generic-y += poll.h
-generic-y += siginfo.h
+++ /dev/null
-#ifndef _ASM_AUXVEC_H
-#define _ASM_AUXVEC_H
-
-#endif
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#include <asm-generic/bitsperlong.h>
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_BYTEORDER_H
-#define _ASM_BYTEORDER_H
-
-#include <linux/byteorder/little_endian.h>
-
-#endif /* _ASM_BYTEORDER_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#include <asm-generic/errno.h>
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#include <asm-generic/fcntl.h>
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#include <asm-generic/ioctl.h>
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_IOCTLS_H
-#define _ASM_IOCTLS_H
-
-#include <asm-generic/ioctls.h>
-
-#endif /* _ASM_IOCTLS_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#include <asm-generic/ipcbuf.h>
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#include <asm-generic/kvm_para.h>
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#include <asm-generic/mman.h>
-
-#define MIN_MAP_ADDR PAGE_SIZE /* minimum fixed mmap address */
-
-#define arch_mmap_check(addr, len, flags) \
- (((flags) & MAP_FIXED && (addr) < MIN_MAP_ADDR) ? -EINVAL : 0)
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_MSGBUF_H
-#define _ASM_MSGBUF_H
-
-/*
- * The msqid64_ds structure for MN10300 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
-
-struct msqid64_ds {
- struct ipc64_perm msg_perm;
- __kernel_time_t msg_stime; /* last msgsnd time */
- unsigned long __unused1;
- __kernel_time_t msg_rtime; /* last msgrcv time */
- unsigned long __unused2;
- __kernel_time_t msg_ctime; /* last change time */
- unsigned long __unused3;
- unsigned long msg_cbytes; /* current number of bytes on queue */
- unsigned long msg_qnum; /* number of messages in queue */
- unsigned long msg_qbytes; /* max number of bytes on queue */
- __kernel_pid_t msg_lspid; /* pid of last msgsnd */
- __kernel_pid_t msg_lrpid; /* last receive pid */
- unsigned long __unused4;
- unsigned long __unused5;
-};
-
-#endif /* _ASM_MSGBUF_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
-/* MN10300 Kernel parameters
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_PARAM_H
-#define _ASM_PARAM_H
-
-#include <asm-generic/param.h>
-
-#define COMMAND_LINE_SIZE 256
-
-#endif /* _ASM_PARAM_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
-/* MN10300 POSIX types
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_POSIX_TYPES_H
-#define _ASM_POSIX_TYPES_H
-
-/*
- * This file is generally used by user-level software, so you need to
- * be a little careful about namespace pollution etc. Also, we cannot
- * assume GCC is being used.
- */
-
-typedef unsigned short __kernel_mode_t;
-#define __kernel_mode_t __kernel_mode_t
-
-typedef unsigned short __kernel_ipc_pid_t;
-#define __kernel_ipc_pid_t __kernel_ipc_pid_t
-
-typedef unsigned short __kernel_uid_t;
-typedef unsigned short __kernel_gid_t;
-#define __kernel_uid_t __kernel_uid_t
-
-#if __GNUC__ == 4
-typedef unsigned int __kernel_size_t;
-typedef signed int __kernel_ssize_t;
-#else
-typedef unsigned long __kernel_size_t;
-typedef signed long __kernel_ssize_t;
-#endif
-typedef int __kernel_ptrdiff_t;
-#define __kernel_size_t __kernel_size_t
-
-typedef unsigned short __kernel_old_dev_t;
-#define __kernel_old_dev_t __kernel_old_dev_t
-
-#include <asm-generic/posix_types.h>
-
-#endif /* _ASM_POSIX_TYPES_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
-/* MN10300 Exception frame layout and ptrace constants
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _UAPI_ASM_PTRACE_H
-#define _UAPI_ASM_PTRACE_H
-
-#define PT_A3 0
-#define PT_A2 1
-#define PT_D3 2
-#define PT_D2 3
-#define PT_MCVF 4
-#define PT_MCRL 5
-#define PT_MCRH 6
-#define PT_MDRQ 7
-#define PT_E1 8
-#define PT_E0 9
-#define PT_E7 10
-#define PT_E6 11
-#define PT_E5 12
-#define PT_E4 13
-#define PT_E3 14
-#define PT_E2 15
-#define PT_SP 16
-#define PT_LAR 17
-#define PT_LIR 18
-#define PT_MDR 19
-#define PT_A1 20
-#define PT_A0 21
-#define PT_D1 22
-#define PT_D0 23
-#define PT_ORIG_D0 24
-#define PT_EPSW 25
-#define PT_PC 26
-#define NR_PTREGS 27
-
-/*
- * This defines the way registers are stored in the event of an exception
- * - the strange order is due to the MOVM instruction
- */
-struct pt_regs {
- unsigned long a3; /* syscall arg 3 */
- unsigned long a2; /* syscall arg 4 */
- unsigned long d3; /* syscall arg 5 */
- unsigned long d2; /* syscall arg 6 */
- unsigned long mcvf;
- unsigned long mcrl;
- unsigned long mcrh;
- unsigned long mdrq;
- unsigned long e1;
- unsigned long e0;
- unsigned long e7;
- unsigned long e6;
- unsigned long e5;
- unsigned long e4;
- unsigned long e3;
- unsigned long e2;
- unsigned long sp;
- unsigned long lar;
- unsigned long lir;
- unsigned long mdr;
- unsigned long a1;
- unsigned long a0; /* syscall arg 1 */
- unsigned long d1; /* syscall arg 2 */
- unsigned long d0; /* syscall ret */
- struct pt_regs *next; /* next frame pointer */
- unsigned long orig_d0; /* syscall number */
- unsigned long epsw;
- unsigned long pc;
-};
-
-/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
-#define PTRACE_GETREGS 12
-#define PTRACE_SETREGS 13
-#define PTRACE_GETFPREGS 14
-#define PTRACE_SETFPREGS 15
-
-#endif /* _UAPI_ASM_PTRACE_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#include <asm-generic/resource.h>
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_SEMBUF_H
-#define _ASM_SEMBUF_H
-
-/*
- * The semid64_ds structure for MN10300 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
-
-struct semid64_ds {
- struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
- __kernel_time_t sem_otime; /* last semop time */
- unsigned long __unused1;
- __kernel_time_t sem_ctime; /* last change time */
- unsigned long __unused2;
- unsigned long sem_nsems; /* no. of semaphores in array */
- unsigned long __unused3;
- unsigned long __unused4;
-};
-
-#endif /* _ASM_SEMBUF_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-/*
- * There isn't anything here anymore, but the file must not be empty or patch
- * will delete it.
- */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_SHMBUF_H
-#define _ASM_SHMBUF_H
-
-/*
- * The shmid64_ds structure for MN10300 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
-
-struct shmid64_ds {
- struct ipc64_perm shm_perm; /* operation perms */
- size_t shm_segsz; /* size of segment (bytes) */
- __kernel_time_t shm_atime; /* last attach time */
- unsigned long __unused1;
- __kernel_time_t shm_dtime; /* last detach time */
- unsigned long __unused2;
- __kernel_time_t shm_ctime; /* last change time */
- unsigned long __unused3;
- __kernel_pid_t shm_cpid; /* pid of creator */
- __kernel_pid_t shm_lpid; /* pid of last operator */
- unsigned long shm_nattch; /* no. of current attaches */
- unsigned long __unused4;
- unsigned long __unused5;
-};
-
-struct shminfo64 {
- unsigned long shmmax;
- unsigned long shmmin;
- unsigned long shmmni;
- unsigned long shmseg;
- unsigned long shmall;
- unsigned long __unused1;
- unsigned long __unused2;
- unsigned long __unused3;
- unsigned long __unused4;
-};
-
-#endif /* _ASM_SHMBUF_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
-/* MN10300 Userspace signal context
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_SIGCONTEXT_H
-#define _ASM_SIGCONTEXT_H
-
-struct fpucontext {
- /* Regular FPU environment */
- unsigned long fs[32]; /* fpu registers */
- unsigned long fpcr; /* fpu control register */
-};
-
-struct sigcontext {
- unsigned long d0;
- unsigned long d1;
- unsigned long d2;
- unsigned long d3;
- unsigned long a0;
- unsigned long a1;
- unsigned long a2;
- unsigned long a3;
- unsigned long e0;
- unsigned long e1;
- unsigned long e2;
- unsigned long e3;
- unsigned long e4;
- unsigned long e5;
- unsigned long e6;
- unsigned long e7;
- unsigned long lar;
- unsigned long lir;
- unsigned long mdr;
- unsigned long mcvf;
- unsigned long mcrl;
- unsigned long mcrh;
- unsigned long mdrq;
- unsigned long sp;
- unsigned long epsw;
- unsigned long pc;
- struct fpucontext *fpucontext;
- unsigned long oldmask;
-};
-
-
-#endif /* _ASM_SIGCONTEXT_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
-/* MN10300 Signal definitions
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _UAPI_ASM_SIGNAL_H
-#define _UAPI_ASM_SIGNAL_H
-
-#include <linux/types.h>
-
-/* Avoid too many header ordering problems. */
-struct siginfo;
-
-#ifndef __KERNEL__
-/* Here we must cater to libcs that poke about in kernel headers. */
-
-#define NSIG 32
-typedef unsigned long sigset_t;
-
-#endif /* __KERNEL__ */
-
-#define SIGHUP 1
-#define SIGINT 2
-#define SIGQUIT 3
-#define SIGILL 4
-#define SIGTRAP 5
-#define SIGABRT 6
-#define SIGIOT 6
-#define SIGBUS 7
-#define SIGFPE 8
-#define SIGKILL 9
-#define SIGUSR1 10
-#define SIGSEGV 11
-#define SIGUSR2 12
-#define SIGPIPE 13
-#define SIGALRM 14
-#define SIGTERM 15
-#define SIGSTKFLT 16
-#define SIGCHLD 17
-#define SIGCONT 18
-#define SIGSTOP 19
-#define SIGTSTP 20
-#define SIGTTIN 21
-#define SIGTTOU 22
-#define SIGURG 23
-#define SIGXCPU 24
-#define SIGXFSZ 25
-#define SIGVTALRM 26
-#define SIGPROF 27
-#define SIGWINCH 28
-#define SIGIO 29
-#define SIGPOLL SIGIO
-/*
-#define SIGLOST 29
-*/
-#define SIGPWR 30
-#define SIGSYS 31
-#define SIGUNUSED 31
-
-/* These should not be considered constants from userland. */
-#define SIGRTMIN 32
-#define SIGRTMAX _NSIG
-
-/*
- * SA_FLAGS values:
- *
- * SA_ONSTACK indicates that a registered stack_t will be used.
- * SA_RESTART flag to get restarting signals (which were the default long ago)
- * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
- * SA_RESETHAND clears the handler when the signal is delivered.
- * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
- * SA_NODEFER prevents the current signal from being masked in the handler.
- *
- * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
- * Unix names RESETHAND and NODEFER respectively.
- */
-#define SA_NOCLDSTOP 0x00000001U
-#define SA_NOCLDWAIT 0x00000002U
-#define SA_SIGINFO 0x00000004U
-#define SA_ONSTACK 0x08000000U
-#define SA_RESTART 0x10000000U
-#define SA_NODEFER 0x40000000U
-#define SA_RESETHAND 0x80000000U
-
-#define SA_NOMASK SA_NODEFER
-#define SA_ONESHOT SA_RESETHAND
-
-#define SA_RESTORER 0x04000000
-
-#define MINSIGSTKSZ 2048
-#define SIGSTKSZ 8192
-
-#include <asm-generic/signal-defs.h>
-
-#ifndef __KERNEL__
-/* Here we must cater to libcs that poke about in kernel headers. */
-
-struct sigaction {
- union {
- __sighandler_t _sa_handler;
- void (*_sa_sigaction)(int, struct siginfo *, void *);
- } _u;
- sigset_t sa_mask;
- unsigned long sa_flags;
- void (*sa_restorer)(void);
-};
-
-#define sa_handler _u._sa_handler
-#define sa_sigaction _u._sa_sigaction
-
-#endif /* __KERNEL__ */
-
-typedef struct sigaltstack {
- void __user *ss_sp;
- int ss_flags;
- size_t ss_size;
-} stack_t;
-
-
-#endif /* _UAPI_ASM_SIGNAL_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_SOCKET_H
-#define _ASM_SOCKET_H
-
-#include <asm/sockios.h>
-
-/* For setsockopt(2) */
-#define SOL_SOCKET 1
-
-#define SO_DEBUG 1
-#define SO_REUSEADDR 2
-#define SO_TYPE 3
-#define SO_ERROR 4
-#define SO_DONTROUTE 5
-#define SO_BROADCAST 6
-#define SO_SNDBUF 7
-#define SO_RCVBUF 8
-#define SO_SNDBUFFORCE 32
-#define SO_RCVBUFFORCE 33
-#define SO_KEEPALIVE 9
-#define SO_OOBINLINE 10
-#define SO_NO_CHECK 11
-#define SO_PRIORITY 12
-#define SO_LINGER 13
-#define SO_BSDCOMPAT 14
-#define SO_REUSEPORT 15
-#define SO_PASSCRED 16
-#define SO_PEERCRED 17
-#define SO_RCVLOWAT 18
-#define SO_SNDLOWAT 19
-#define SO_RCVTIMEO 20
-#define SO_SNDTIMEO 21
-
-/* Security levels - as per NRL IPv6 - don't actually do anything */
-#define SO_SECURITY_AUTHENTICATION 22
-#define SO_SECURITY_ENCRYPTION_TRANSPORT 23
-#define SO_SECURITY_ENCRYPTION_NETWORK 24
-
-#define SO_BINDTODEVICE 25
-
-/* Socket filtering */
-#define SO_ATTACH_FILTER 26
-#define SO_DETACH_FILTER 27
-#define SO_GET_FILTER SO_ATTACH_FILTER
-
-#define SO_PEERNAME 28
-#define SO_TIMESTAMP 29
-#define SCM_TIMESTAMP SO_TIMESTAMP
-
-#define SO_ACCEPTCONN 30
-
-#define SO_PEERSEC 31
-#define SO_PASSSEC 34
-#define SO_TIMESTAMPNS 35
-#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
-
-#define SO_MARK 36
-
-#define SO_TIMESTAMPING 37
-#define SCM_TIMESTAMPING SO_TIMESTAMPING
-
-#define SO_PROTOCOL 38
-#define SO_DOMAIN 39
-
-#define SO_RXQ_OVFL 40
-
-#define SO_WIFI_STATUS 41
-#define SCM_WIFI_STATUS SO_WIFI_STATUS
-#define SO_PEEK_OFF 42
-
-/* Instruct lower device to use last 4-bytes of skb data as FCS */
-#define SO_NOFCS 43
-
-#define SO_LOCK_FILTER 44
-
-#define SO_SELECT_ERR_QUEUE 45
-
-#define SO_BUSY_POLL 46
-
-#define SO_MAX_PACING_RATE 47
-
-#define SO_BPF_EXTENSIONS 48
-
-#define SO_INCOMING_CPU 49
-
-#define SO_ATTACH_BPF 50
-#define SO_DETACH_BPF SO_DETACH_FILTER
-
-#define SO_ATTACH_REUSEPORT_CBPF 51
-#define SO_ATTACH_REUSEPORT_EBPF 52
-
-#define SO_CNX_ADVICE 53
-
-#define SCM_TIMESTAMPING_OPT_STATS 54
-
-#define SO_MEMINFO 55
-
-#define SO_INCOMING_NAPI_ID 56
-
-#define SO_COOKIE 57
-
-#define SCM_TIMESTAMPING_PKTINFO 58
-
-#define SO_PEERGROUPS 59
-
-#define SO_ZEROCOPY 60
-
-#endif /* _ASM_SOCKET_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_SOCKIOS_H
-#define _ASM_SOCKIOS_H
-
-/* Socket-level I/O control calls. */
-#define FIOSETOWN 0x8901
-#define SIOCSPGRP 0x8902
-#define FIOGETOWN 0x8903
-#define SIOCGPGRP 0x8904
-#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
-#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
-
-#endif /* _ASM_SOCKIOS_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_STAT_H
-#define _ASM_STAT_H
-
-struct __old_kernel_stat {
- unsigned short st_dev;
- unsigned short st_ino;
- unsigned short st_mode;
- unsigned short st_nlink;
- unsigned short st_uid;
- unsigned short st_gid;
- unsigned short st_rdev;
- unsigned long st_size;
- unsigned long st_atime;
- unsigned long st_mtime;
- unsigned long st_ctime;
-};
-
-struct stat {
- unsigned long st_dev;
- unsigned long st_ino;
- unsigned short st_mode;
- unsigned short st_nlink;
- unsigned short st_uid;
- unsigned short st_gid;
- unsigned long st_rdev;
- unsigned long st_size;
- unsigned long st_blksize;
- unsigned long st_blocks;
- unsigned long st_atime;
- unsigned long st_atime_nsec;
- unsigned long st_mtime;
- unsigned long st_mtime_nsec;
- unsigned long st_ctime;
- unsigned long st_ctime_nsec;
- unsigned long __unused4;
- unsigned long __unused5;
-};
-
-/* This matches struct stat64 in glibc2.1, hence the absolutely
- * insane amounts of padding around dev_t's.
- */
-struct stat64 {
- unsigned long long st_dev;
- unsigned char __pad0[4];
-
-#define STAT64_HAS_BROKEN_ST_INO 1
- unsigned long __st_ino;
-
- unsigned int st_mode;
- unsigned int st_nlink;
-
- unsigned long st_uid;
- unsigned long st_gid;
-
- unsigned long long st_rdev;
- unsigned char __pad3[4];
-
- long long st_size;
- unsigned long st_blksize;
-
- unsigned long st_blocks; /* Number 512-byte blocks allocated. */
- unsigned long __pad4; /* future possible st_blocks high bits */
-
- unsigned long st_atime;
- unsigned long st_atime_nsec;
-
- unsigned long st_mtime;
- unsigned int st_mtime_nsec;
-
- unsigned long st_ctime;
- unsigned long st_ctime_nsec;
-
- unsigned long long st_ino;
-};
-
-#define STAT_HAVE_NSEC 1
-
-#endif /* _ASM_STAT_H */
+++ /dev/null
-#include <asm-generic/statfs.h>
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
-/* MN10300 Byte-order primitive construction
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_SWAB_H
-#define _ASM_SWAB_H
-
-#include <linux/types.h>
-
-#ifdef __GNUC__
-
-static inline __attribute__((const))
-__u32 __arch_swab32(__u32 x)
-{
- __u32 ret;
- asm("swap %1,%0" : "=r" (ret) : "r" (x));
- return ret;
-}
-#define __arch_swab32 __arch_swab32
-
-static inline __attribute__((const))
-__u16 __arch_swab16(__u16 x)
-{
- __u16 ret;
- asm("swaph %1,%0" : "=r" (ret) : "r" (x));
- return ret;
-}
-#define __arch_swab32 __arch_swab32
-
-#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
-# define __SWAB_64_THRU_32__
-#endif
-
-#endif /* __GNUC__ */
-
-#endif /* _ASM_SWAB_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_TERMBITS_H
-#define _ASM_TERMBITS_H
-
-#include <linux/posix_types.h>
-
-typedef unsigned char cc_t;
-typedef unsigned int speed_t;
-typedef unsigned int tcflag_t;
-
-#define NCCS 19
-struct termios {
- tcflag_t c_iflag; /* input mode flags */
- tcflag_t c_oflag; /* output mode flags */
- tcflag_t c_cflag; /* control mode flags */
- tcflag_t c_lflag; /* local mode flags */
- cc_t c_line; /* line discipline */
- cc_t c_cc[NCCS]; /* control characters */
-};
-
-struct termios2 {
- tcflag_t c_iflag; /* input mode flags */
- tcflag_t c_oflag; /* output mode flags */
- tcflag_t c_cflag; /* control mode flags */
- tcflag_t c_lflag; /* local mode flags */
- cc_t c_line; /* line discipline */
- cc_t c_cc[NCCS]; /* control characters */
- speed_t c_ispeed; /* input speed */
- speed_t c_ospeed; /* output speed */
-};
-
-struct ktermios {
- tcflag_t c_iflag; /* input mode flags */
- tcflag_t c_oflag; /* output mode flags */
- tcflag_t c_cflag; /* control mode flags */
- tcflag_t c_lflag; /* local mode flags */
- cc_t c_line; /* line discipline */
- cc_t c_cc[NCCS]; /* control characters */
- speed_t c_ispeed; /* input speed */
- speed_t c_ospeed; /* output speed */
-};
-
-/* c_cc characters */
-#define VINTR 0
-#define VQUIT 1
-#define VERASE 2
-#define VKILL 3
-#define VEOF 4
-#define VTIME 5
-#define VMIN 6
-#define VSWTC 7
-#define VSTART 8
-#define VSTOP 9
-#define VSUSP 10
-#define VEOL 11
-#define VREPRINT 12
-#define VDISCARD 13
-#define VWERASE 14
-#define VLNEXT 15
-#define VEOL2 16
-
-
-/* c_iflag bits */
-#define IGNBRK 0000001
-#define BRKINT 0000002
-#define IGNPAR 0000004
-#define PARMRK 0000010
-#define INPCK 0000020
-#define ISTRIP 0000040
-#define INLCR 0000100
-#define IGNCR 0000200
-#define ICRNL 0000400
-#define IUCLC 0001000
-#define IXON 0002000
-#define IXANY 0004000
-#define IXOFF 0010000
-#define IMAXBEL 0020000
-#define IUTF8 0040000
-
-/* c_oflag bits */
-#define OPOST 0000001
-#define OLCUC 0000002
-#define ONLCR 0000004
-#define OCRNL 0000010
-#define ONOCR 0000020
-#define ONLRET 0000040
-#define OFILL 0000100
-#define OFDEL 0000200
-#define NLDLY 0000400
-#define NL0 0000000
-#define NL1 0000400
-#define CRDLY 0003000
-#define CR0 0000000
-#define CR1 0001000
-#define CR2 0002000
-#define CR3 0003000
-#define TABDLY 0014000
-#define TAB0 0000000
-#define TAB1 0004000
-#define TAB2 0010000
-#define TAB3 0014000
-#define XTABS 0014000
-#define BSDLY 0020000
-#define BS0 0000000
-#define BS1 0020000
-#define VTDLY 0040000
-#define VT0 0000000
-#define VT1 0040000
-#define FFDLY 0100000
-#define FF0 0000000
-#define FF1 0100000
-
-/* c_cflag bit meaning */
-#define CBAUD 0010017
-#define B0 0000000 /* hang up */
-#define B50 0000001
-#define B75 0000002
-#define B110 0000003
-#define B134 0000004
-#define B150 0000005
-#define B200 0000006
-#define B300 0000007
-#define B600 0000010
-#define B1200 0000011
-#define B1800 0000012
-#define B2400 0000013
-#define B4800 0000014
-#define B9600 0000015
-#define B19200 0000016
-#define B38400 0000017
-#define EXTA B19200
-#define EXTB B38400
-#define CSIZE 0000060
-#define CS5 0000000
-#define CS6 0000020
-#define CS7 0000040
-#define CS8 0000060
-#define CSTOPB 0000100
-#define CREAD 0000200
-#define PARENB 0000400
-#define PARODD 0001000
-#define HUPCL 0002000
-#define CLOCAL 0004000
-#define CBAUDEX 0010000
-#define BOTHER 0010000
-#define B57600 0010001
-#define B115200 0010002
-#define B230400 0010003
-#define B460800 0010004
-#define B500000 0010005
-#define B576000 0010006
-#define B921600 0010007
-#define B1000000 0010010
-#define B1152000 0010011
-#define B1500000 0010012
-#define B2000000 0010013
-#define B2500000 0010014
-#define B3000000 0010015
-#define B3500000 0010016
-#define B4000000 0010017
-#define CIBAUD 002003600000 /* input baud rate (not used) */
-#define CTVB 004000000000 /* VisioBraille Terminal flow control */
-#define CMSPAR 010000000000 /* mark or space (stick) parity */
-#define CRTSCTS 020000000000 /* flow control */
-
-#define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */
-
-/* c_lflag bits */
-#define ISIG 0000001
-#define ICANON 0000002
-#define XCASE 0000004
-#define ECHO 0000010
-#define ECHOE 0000020
-#define ECHOK 0000040
-#define ECHONL 0000100
-#define NOFLSH 0000200
-#define TOSTOP 0000400
-#define ECHOCTL 0001000
-#define ECHOPRT 0002000
-#define ECHOKE 0004000
-#define FLUSHO 0010000
-#define PENDIN 0040000
-#define IEXTEN 0100000
-#define EXTPROC 0200000
-
-/* tcflow() and TCXONC use these */
-#define TCOOFF 0
-#define TCOON 1
-#define TCIOFF 2
-#define TCION 3
-
-/* tcflush() and TCFLSH use these */
-#define TCIFLUSH 0
-#define TCOFLUSH 1
-#define TCIOFLUSH 2
-
-/* tcsetattr uses these */
-#define TCSANOW 0
-#define TCSADRAIN 1
-#define TCSAFLUSH 2
-
-#endif /* _ASM_TERMBITS_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _UAPI_ASM_TERMIOS_H
-#define _UAPI_ASM_TERMIOS_H
-
-#include <asm/termbits.h>
-#include <asm/ioctls.h>
-
-struct winsize {
- unsigned short ws_row;
- unsigned short ws_col;
- unsigned short ws_xpixel;
- unsigned short ws_ypixel;
-};
-
-#define NCC 8
-struct termio {
- unsigned short c_iflag; /* input mode flags */
- unsigned short c_oflag; /* output mode flags */
- unsigned short c_cflag; /* control mode flags */
- unsigned short c_lflag; /* local mode flags */
- unsigned char c_line; /* line discipline */
- unsigned char c_cc[NCC]; /* control characters */
-};
-
-
-/* modem lines */
-#define TIOCM_LE 0x001
-#define TIOCM_DTR 0x002
-#define TIOCM_RTS 0x004
-#define TIOCM_ST 0x008
-#define TIOCM_SR 0x010
-#define TIOCM_CTS 0x020
-#define TIOCM_CAR 0x040
-#define TIOCM_RNG 0x080
-#define TIOCM_DSR 0x100
-#define TIOCM_CD TIOCM_CAR
-#define TIOCM_RI TIOCM_RNG
-#define TIOCM_OUT1 0x2000
-#define TIOCM_OUT2 0x4000
-#define TIOCM_LOOP 0x8000
-
-#define TIOCM_MODEM_BITS TIOCM_OUT2 /* IRDA support */
-
-/*
- * Translate a "termio" structure into a "termios". Ugh.
- */
-#define SET_LOW_TERMIOS_BITS(termios, termio, x) { \
- unsigned short __tmp; \
- get_user(__tmp, &(termio)->x); \
- *(unsigned short *) &(termios)->x = __tmp; \
-}
-
-#define user_termio_to_kernel_termios(termios, termio) \
-({ \
- SET_LOW_TERMIOS_BITS(termios, termio, c_iflag); \
- SET_LOW_TERMIOS_BITS(termios, termio, c_oflag); \
- SET_LOW_TERMIOS_BITS(termios, termio, c_cflag); \
- SET_LOW_TERMIOS_BITS(termios, termio, c_lflag); \
- copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
-})
-
-/*
- * Translate a "termios" structure into a "termio". Ugh.
- */
-#define kernel_termios_to_user_termio(termio, termios) \
-({ \
- put_user((termios)->c_iflag, &(termio)->c_iflag); \
- put_user((termios)->c_oflag, &(termio)->c_oflag); \
- put_user((termios)->c_cflag, &(termio)->c_cflag); \
- put_user((termios)->c_lflag, &(termio)->c_lflag); \
- put_user((termios)->c_line, &(termio)->c_line); \
- copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
-})
-
-#define user_termios_to_kernel_termios(k, u) \
- copy_from_user(k, u, sizeof(struct termios2))
-#define kernel_termios_to_user_termios(u, k) \
- copy_to_user(u, k, sizeof(struct termios2))
-#define user_termios_to_kernel_termios_1(k, u) \
- copy_from_user(k, u, sizeof(struct termios))
-#define kernel_termios_to_user_termios_1(u, k) \
- copy_to_user(u, k, sizeof(struct termios))
-
-#endif /* _UAPI_ASM_TERMIOS_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
-/* MN10300 Basic type definitions
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <asm-generic/int-ll64.h>
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
-/* MN10300 System call number list
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _UAPI_ASM_UNISTD_H
-#define _UAPI_ASM_UNISTD_H
-
-#define __NR_restart_syscall 0
-#define __NR_exit 1
-#define __NR_fork 2
-#define __NR_read 3
-#define __NR_write 4
-#define __NR_open 5
-#define __NR_close 6
-#define __NR_waitpid 7
-#define __NR_creat 8
-#define __NR_link 9
-#define __NR_unlink 10
-#define __NR_execve 11
-#define __NR_chdir 12
-#define __NR_time 13
-#define __NR_mknod 14
-#define __NR_chmod 15
-#define __NR_lchown 16
-#define __NR_break 17
-#define __NR_oldstat 18
-#define __NR_lseek 19
-#define __NR_getpid 20
-#define __NR_mount 21
-#define __NR_umount 22
-#define __NR_setuid 23
-#define __NR_getuid 24
-#define __NR_stime 25
-#define __NR_ptrace 26
-#define __NR_alarm 27
-#define __NR_oldfstat 28
-#define __NR_pause 29
-#define __NR_utime 30
-#define __NR_stty 31
-#define __NR_gtty 32
-#define __NR_access 33
-#define __NR_nice 34
-#define __NR_ftime 35
-#define __NR_sync 36
-#define __NR_kill 37
-#define __NR_rename 38
-#define __NR_mkdir 39
-#define __NR_rmdir 40
-#define __NR_dup 41
-#define __NR_pipe 42
-#define __NR_times 43
-#define __NR_prof 44
-#define __NR_brk 45
-#define __NR_setgid 46
-#define __NR_getgid 47
-#define __NR_signal 48
-#define __NR_geteuid 49
-#define __NR_getegid 50
-#define __NR_acct 51
-#define __NR_umount2 52
-#define __NR_lock 53
-#define __NR_ioctl 54
-#define __NR_fcntl 55
-#define __NR_mpx 56
-#define __NR_setpgid 57
-#define __NR_ulimit 58
-#define __NR_oldolduname 59
-#define __NR_umask 60
-#define __NR_chroot 61
-#define __NR_ustat 62
-#define __NR_dup2 63
-#define __NR_getppid 64
-#define __NR_getpgrp 65
-#define __NR_setsid 66
-#define __NR_sigaction 67
-#define __NR_sgetmask 68
-#define __NR_ssetmask 69
-#define __NR_setreuid 70
-#define __NR_setregid 71
-#define __NR_sigsuspend 72
-#define __NR_sigpending 73
-#define __NR_sethostname 74
-#define __NR_setrlimit 75
-#define __NR_getrlimit 76 /* Back compatible 2Gig limited rlimit */
-#define __NR_getrusage 77
-#define __NR_gettimeofday 78
-#define __NR_settimeofday 79
-#define __NR_getgroups 80
-#define __NR_setgroups 81
-#define __NR_select 82
-#define __NR_symlink 83
-#define __NR_oldlstat 84
-#define __NR_readlink 85
-#define __NR_uselib 86
-#define __NR_swapon 87
-#define __NR_reboot 88
-#define __NR_readdir 89
-#define __NR_mmap 90
-#define __NR_munmap 91
-#define __NR_truncate 92
-#define __NR_ftruncate 93
-#define __NR_fchmod 94
-#define __NR_fchown 95
-#define __NR_getpriority 96
-#define __NR_setpriority 97
-#define __NR_profil 98
-#define __NR_statfs 99
-#define __NR_fstatfs 100
-#define __NR_ioperm 101
-#define __NR_socketcall 102
-#define __NR_syslog 103
-#define __NR_setitimer 104
-#define __NR_getitimer 105
-#define __NR_stat 106
-#define __NR_lstat 107
-#define __NR_fstat 108
-#define __NR_olduname 109
-#define __NR_iopl 110
-#define __NR_vhangup 111
-#define __NR_idle 112
-#define __NR_vm86old 113
-#define __NR_wait4 114
-#define __NR_swapoff 115
-#define __NR_sysinfo 116
-#define __NR_ipc 117
-#define __NR_fsync 118
-#define __NR_sigreturn 119
-#define __NR_clone 120
-#define __NR_setdomainname 121
-#define __NR_uname 122
-#define __NR_modify_ldt 123
-#define __NR_adjtimex 124
-#define __NR_mprotect 125
-#define __NR_sigprocmask 126
-#define __NR_create_module 127
-#define __NR_init_module 128
-#define __NR_delete_module 129
-#define __NR_get_kernel_syms 130
-#define __NR_quotactl 131
-#define __NR_getpgid 132
-#define __NR_fchdir 133
-#define __NR_bdflush 134
-#define __NR_sysfs 135
-#define __NR_personality 136
-#define __NR_afs_syscall 137 /* Syscall for Andrew File System */
-#define __NR_setfsuid 138
-#define __NR_setfsgid 139
-#define __NR__llseek 140
-#define __NR_getdents 141
-#define __NR__newselect 142
-#define __NR_flock 143
-#define __NR_msync 144
-#define __NR_readv 145
-#define __NR_writev 146
-#define __NR_getsid 147
-#define __NR_fdatasync 148
-#define __NR__sysctl 149
-#define __NR_mlock 150
-#define __NR_munlock 151
-#define __NR_mlockall 152
-#define __NR_munlockall 153
-#define __NR_sched_setparam 154
-#define __NR_sched_getparam 155
-#define __NR_sched_setscheduler 156
-#define __NR_sched_getscheduler 157
-#define __NR_sched_yield 158
-#define __NR_sched_get_priority_max 159
-#define __NR_sched_get_priority_min 160
-#define __NR_sched_rr_get_interval 161
-#define __NR_nanosleep 162
-#define __NR_mremap 163
-#define __NR_setresuid 164
-#define __NR_getresuid 165
-#define __NR_vm86 166
-#define __NR_query_module 167
-#define __NR_poll 168
-#define __NR_nfsservctl 169
-#define __NR_setresgid 170
-#define __NR_getresgid 171
-#define __NR_prctl 172
-#define __NR_rt_sigreturn 173
-#define __NR_rt_sigaction 174
-#define __NR_rt_sigprocmask 175
-#define __NR_rt_sigpending 176
-#define __NR_rt_sigtimedwait 177
-#define __NR_rt_sigqueueinfo 178
-#define __NR_rt_sigsuspend 179
-#define __NR_pread64 180
-#define __NR_pwrite64 181
-#define __NR_chown 182
-#define __NR_getcwd 183
-#define __NR_capget 184
-#define __NR_capset 185
-#define __NR_sigaltstack 186
-#define __NR_sendfile 187
-#define __NR_getpmsg 188 /* some people actually want streams */
-#define __NR_putpmsg 189 /* some people actually want streams */
-#define __NR_vfork 190
-#define __NR_ugetrlimit 191 /* SuS compliant getrlimit */
-#define __NR_mmap2 192
-#define __NR_truncate64 193
-#define __NR_ftruncate64 194
-#define __NR_stat64 195
-#define __NR_lstat64 196
-#define __NR_fstat64 197
-#define __NR_lchown32 198
-#define __NR_getuid32 199
-#define __NR_getgid32 200
-#define __NR_geteuid32 201
-#define __NR_getegid32 202
-#define __NR_setreuid32 203
-#define __NR_setregid32 204
-#define __NR_getgroups32 205
-#define __NR_setgroups32 206
-#define __NR_fchown32 207
-#define __NR_setresuid32 208
-#define __NR_getresuid32 209
-#define __NR_setresgid32 210
-#define __NR_getresgid32 211
-#define __NR_chown32 212
-#define __NR_setuid32 213
-#define __NR_setgid32 214
-#define __NR_setfsuid32 215
-#define __NR_setfsgid32 216
-#define __NR_pivot_root 217
-#define __NR_mincore 218
-#define __NR_madvise 219
-#define __NR_madvise1 219 /* delete when C lib stub is removed */
-#define __NR_getdents64 220
-#define __NR_fcntl64 221
-/* 223 is unused */
-#define __NR_gettid 224
-#define __NR_readahead 225
-#define __NR_setxattr 226
-#define __NR_lsetxattr 227
-#define __NR_fsetxattr 228
-#define __NR_getxattr 229
-#define __NR_lgetxattr 230
-#define __NR_fgetxattr 231
-#define __NR_listxattr 232
-#define __NR_llistxattr 233
-#define __NR_flistxattr 234
-#define __NR_removexattr 235
-#define __NR_lremovexattr 236
-#define __NR_fremovexattr 237
-#define __NR_tkill 238
-#define __NR_sendfile64 239
-#define __NR_futex 240
-#define __NR_sched_setaffinity 241
-#define __NR_sched_getaffinity 242
-#define __NR_set_thread_area 243
-#define __NR_get_thread_area 244
-#define __NR_io_setup 245
-#define __NR_io_destroy 246
-#define __NR_io_getevents 247
-#define __NR_io_submit 248
-#define __NR_io_cancel 249
-#define __NR_fadvise64 250
-
-#define __NR_exit_group 252
-#define __NR_lookup_dcookie 253
-#define __NR_epoll_create 254
-#define __NR_epoll_ctl 255
-#define __NR_epoll_wait 256
-#define __NR_remap_file_pages 257
-#define __NR_set_tid_address 258
-#define __NR_timer_create 259
-#define __NR_timer_settime (__NR_timer_create+1)
-#define __NR_timer_gettime (__NR_timer_create+2)
-#define __NR_timer_getoverrun (__NR_timer_create+3)
-#define __NR_timer_delete (__NR_timer_create+4)
-#define __NR_clock_settime (__NR_timer_create+5)
-#define __NR_clock_gettime (__NR_timer_create+6)
-#define __NR_clock_getres (__NR_timer_create+7)
-#define __NR_clock_nanosleep (__NR_timer_create+8)
-#define __NR_statfs64 268
-#define __NR_fstatfs64 269
-#define __NR_tgkill 270
-#define __NR_utimes 271
-#define __NR_fadvise64_64 272
-#define __NR_vserver 273
-#define __NR_mbind 274
-#define __NR_get_mempolicy 275
-#define __NR_set_mempolicy 276
-#define __NR_mq_open 277
-#define __NR_mq_unlink (__NR_mq_open+1)
-#define __NR_mq_timedsend (__NR_mq_open+2)
-#define __NR_mq_timedreceive (__NR_mq_open+3)
-#define __NR_mq_notify (__NR_mq_open+4)
-#define __NR_mq_getsetattr (__NR_mq_open+5)
-#define __NR_kexec_load 283
-#define __NR_waitid 284
-#define __NR_add_key 286
-#define __NR_request_key 287
-#define __NR_keyctl 288
-#define __NR_cacheflush 289
-#define __NR_ioprio_set 290
-#define __NR_ioprio_get 291
-#define __NR_inotify_init 292
-#define __NR_inotify_add_watch 293
-#define __NR_inotify_rm_watch 294
-#define __NR_migrate_pages 295
-#define __NR_openat 296
-#define __NR_mkdirat 297
-#define __NR_mknodat 298
-#define __NR_fchownat 299
-#define __NR_futimesat 300
-#define __NR_fstatat64 301
-#define __NR_unlinkat 302
-#define __NR_renameat 303
-#define __NR_linkat 304
-#define __NR_symlinkat 305
-#define __NR_readlinkat 306
-#define __NR_fchmodat 307
-#define __NR_faccessat 308
-#define __NR_pselect6 309
-#define __NR_ppoll 310
-#define __NR_unshare 311
-#define __NR_set_robust_list 312
-#define __NR_get_robust_list 313
-#define __NR_splice 314
-#define __NR_sync_file_range 315
-#define __NR_tee 316
-#define __NR_vmsplice 317
-#define __NR_move_pages 318
-#define __NR_getcpu 319
-#define __NR_epoll_pwait 320
-#define __NR_utimensat 321
-#define __NR_signalfd 322
-#define __NR_timerfd_create 323
-#define __NR_eventfd 324
-#define __NR_fallocate 325
-#define __NR_timerfd_settime 326
-#define __NR_timerfd_gettime 327
-#define __NR_signalfd4 328
-#define __NR_eventfd2 329
-#define __NR_epoll_create1 330
-#define __NR_dup3 331
-#define __NR_pipe2 332
-#define __NR_inotify_init1 333
-#define __NR_preadv 334
-#define __NR_pwritev 335
-#define __NR_rt_tgsigqueueinfo 336
-#define __NR_perf_event_open 337
-#define __NR_recvmmsg 338
-#define __NR_setns 339
-
-#endif /* _UAPI_ASM_UNISTD_H */
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0
-#
-# Makefile for the MN10300-specific core kernel code
-#
-extra-y := head.o vmlinux.lds
-
-fpu-obj-y := fpu-nofpu.o fpu-nofpu-low.o
-fpu-obj-$(CONFIG_FPU) := fpu.o fpu-low.o
-
-obj-y := process.o signal.o entry.o traps.o irq.o \
- ptrace.o setup.o time.o sys_mn10300.o io.o \
- switch_to.o mn10300_ksyms.o $(fpu-obj-y) \
- csrc-mn10300.o cevt-mn10300.o
-
-obj-$(CONFIG_SMP) += smp.o smp-low.o
-
-obj-$(CONFIG_MN10300_WD_TIMER) += mn10300-watchdog.o mn10300-watchdog-low.o
-
-obj-$(CONFIG_MN10300_TTYSM) += mn10300-serial.o mn10300-serial-low.o \
- mn10300-debug.o
-obj-$(CONFIG_GDBSTUB) += gdb-stub.o gdb-low.o
-obj-$(CONFIG_GDBSTUB_ON_TTYSx) += gdb-io-serial.o gdb-io-serial-low.o
-obj-$(CONFIG_GDBSTUB_ON_TTYSMx) += gdb-io-ttysm.o gdb-io-ttysm-low.o
-
-obj-$(CONFIG_MN10300_RTC) += rtc.o
-obj-$(CONFIG_PROFILE) += profile.o profile-low.o
-obj-$(CONFIG_MODULES) += module.o
-obj-$(CONFIG_KPROBES) += kprobes.o
-obj-$(CONFIG_KGDB) += kgdb.o
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Generate definitions needed by assembly language modules.
- * This code generates raw asm output which is post-processed
- * to extract and format the required data.
- */
-
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/personality.h>
-#include <linux/kbuild.h>
-#include <asm/ucontext.h>
-#include <asm/processor.h>
-#include <asm/thread_info.h>
-#include <asm/ptrace.h>
-#include "sigframe.h"
-#include "mn10300-serial.h"
-
-void foo(void)
-{
- OFFSET(SIGCONTEXT_d0, sigcontext, d0);
- OFFSET(SIGCONTEXT_d1, sigcontext, d1);
- BLANK();
-
- OFFSET(TI_task, thread_info, task);
- OFFSET(TI_frame, thread_info, frame);
- OFFSET(TI_flags, thread_info, flags);
- OFFSET(TI_cpu, thread_info, cpu);
- OFFSET(TI_preempt_count, thread_info, preempt_count);
- OFFSET(TI_addr_limit, thread_info, addr_limit);
- BLANK();
-
- OFFSET(REG_D0, pt_regs, d0);
- OFFSET(REG_D1, pt_regs, d1);
- OFFSET(REG_D2, pt_regs, d2);
- OFFSET(REG_D3, pt_regs, d3);
- OFFSET(REG_A0, pt_regs, a0);
- OFFSET(REG_A1, pt_regs, a1);
- OFFSET(REG_A2, pt_regs, a2);
- OFFSET(REG_A3, pt_regs, a3);
- OFFSET(REG_E0, pt_regs, e0);
- OFFSET(REG_E1, pt_regs, e1);
- OFFSET(REG_E2, pt_regs, e2);
- OFFSET(REG_E3, pt_regs, e3);
- OFFSET(REG_E4, pt_regs, e4);
- OFFSET(REG_E5, pt_regs, e5);
- OFFSET(REG_E6, pt_regs, e6);
- OFFSET(REG_E7, pt_regs, e7);
- OFFSET(REG_SP, pt_regs, sp);
- OFFSET(REG_EPSW, pt_regs, epsw);
- OFFSET(REG_PC, pt_regs, pc);
- OFFSET(REG_LAR, pt_regs, lar);
- OFFSET(REG_LIR, pt_regs, lir);
- OFFSET(REG_MDR, pt_regs, mdr);
- OFFSET(REG_MCVF, pt_regs, mcvf);
- OFFSET(REG_MCRL, pt_regs, mcrl);
- OFFSET(REG_MCRH, pt_regs, mcrh);
- OFFSET(REG_MDRQ, pt_regs, mdrq);
- OFFSET(REG_ORIG_D0, pt_regs, orig_d0);
- OFFSET(REG_NEXT, pt_regs, next);
- DEFINE(REG__END, sizeof(struct pt_regs));
- BLANK();
-
- OFFSET(THREAD_UREGS, thread_struct, uregs);
- OFFSET(THREAD_PC, thread_struct, pc);
- OFFSET(THREAD_SP, thread_struct, sp);
- OFFSET(THREAD_A3, thread_struct, a3);
- OFFSET(THREAD_USP, thread_struct, usp);
-#ifdef CONFIG_FPU
- OFFSET(THREAD_FPU_FLAGS, thread_struct, fpu_flags);
- OFFSET(THREAD_FPU_STATE, thread_struct, fpu_state);
- DEFINE(__THREAD_USING_FPU, THREAD_USING_FPU);
- DEFINE(__THREAD_HAS_FPU, THREAD_HAS_FPU);
-#endif /* CONFIG_FPU */
- BLANK();
-
- OFFSET(TASK_THREAD, task_struct, thread);
- BLANK();
-
- DEFINE(CLONE_VM_asm, CLONE_VM);
- DEFINE(CLONE_FS_asm, CLONE_FS);
- DEFINE(CLONE_FILES_asm, CLONE_FILES);
- DEFINE(CLONE_SIGHAND_asm, CLONE_SIGHAND);
- DEFINE(CLONE_UNTRACED_asm, CLONE_UNTRACED);
- DEFINE(SIGCHLD_asm, SIGCHLD);
- BLANK();
-
- OFFSET(RT_SIGFRAME_sigcontext, rt_sigframe, uc.uc_mcontext);
-
- DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
-
- OFFSET(__rx_buffer, mn10300_serial_port, rx_buffer);
- OFFSET(__rx_inp, mn10300_serial_port, rx_inp);
- OFFSET(__rx_outp, mn10300_serial_port, rx_outp);
- OFFSET(__uart_state, mn10300_serial_port, uart.state);
- OFFSET(__tx_xchar, mn10300_serial_port, tx_xchar);
- OFFSET(__tx_flags, mn10300_serial_port, tx_flags);
- OFFSET(__intr_flags, mn10300_serial_port, intr_flags);
- OFFSET(__rx_icr, mn10300_serial_port, rx_icr);
- OFFSET(__tx_icr, mn10300_serial_port, tx_icr);
- OFFSET(__tm_icr, mn10300_serial_port, _tmicr);
- OFFSET(__iobase, mn10300_serial_port, _iobase);
-
- DEFINE(__UART_XMIT_SIZE, UART_XMIT_SIZE);
- OFFSET(__xmit_buffer, uart_state, xmit.buf);
- OFFSET(__xmit_head, uart_state, xmit.head);
- OFFSET(__xmit_tail, uart_state, xmit.tail);
-}
+++ /dev/null
-/* MN10300 clockevents
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by Mark Salter (msalter@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/clockchips.h>
-#include <linux/interrupt.h>
-#include <linux/percpu.h>
-#include <linux/smp.h>
-#include <asm/timex.h>
-#include "internal.h"
-
-#ifdef CONFIG_SMP
-#if (CONFIG_NR_CPUS > 2) && !defined(CONFIG_GEENERIC_CLOCKEVENTS_BROADCAST)
-#error "This doesn't scale well! Need per-core local timers."
-#endif
-#else /* CONFIG_SMP */
-#define stop_jiffies_counter1()
-#define reload_jiffies_counter1(x)
-#define TMJC1IRQ TMJCIRQ
-#endif
-
-
-static int next_event(unsigned long delta,
- struct clock_event_device *evt)
-{
- unsigned int cpu = smp_processor_id();
-
- if (cpu == 0) {
- stop_jiffies_counter();
- reload_jiffies_counter(delta - 1);
- } else {
- stop_jiffies_counter1();
- reload_jiffies_counter1(delta - 1);
- }
- return 0;
-}
-
-static DEFINE_PER_CPU(struct clock_event_device, mn10300_clockevent_device);
-static DEFINE_PER_CPU(struct irqaction, timer_irq);
-
-static irqreturn_t timer_interrupt(int irq, void *dev_id)
-{
- struct clock_event_device *cd;
- unsigned int cpu = smp_processor_id();
-
- if (cpu == 0)
- stop_jiffies_counter();
- else
- stop_jiffies_counter1();
-
- cd = &per_cpu(mn10300_clockevent_device, cpu);
- cd->event_handler(cd);
-
- return IRQ_HANDLED;
-}
-
-static void event_handler(struct clock_event_device *dev)
-{
-}
-
-static inline void setup_jiffies_interrupt(int irq,
- struct irqaction *action)
-{
- u16 tmp;
- setup_irq(irq, action);
- set_intr_level(irq, NUM2GxICR_LEVEL(CONFIG_TIMER_IRQ_LEVEL));
- GxICR(irq) |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST;
- tmp = GxICR(irq);
-}
-
-int __init init_clockevents(void)
-{
- struct clock_event_device *cd;
- struct irqaction *iact;
- unsigned int cpu = smp_processor_id();
-
- cd = &per_cpu(mn10300_clockevent_device, cpu);
-
- if (cpu == 0) {
- stop_jiffies_counter();
- cd->irq = TMJCIRQ;
- } else {
- stop_jiffies_counter1();
- cd->irq = TMJC1IRQ;
- }
-
- cd->name = "Timestamp";
- cd->features = CLOCK_EVT_FEAT_ONESHOT;
-
- /* Calculate shift/mult. We want to spawn at least 1 second */
- clockevents_calc_mult_shift(cd, MN10300_JCCLK, 1);
-
- /* Calculate the min / max delta */
- cd->max_delta_ns = clockevent_delta2ns(TMJCBR_MAX, cd);
- cd->max_delta_ticks = TMJCBR_MAX;
- cd->min_delta_ns = clockevent_delta2ns(100, cd);
- cd->min_delta_ticks = 100;
-
- cd->rating = 200;
- cd->cpumask = cpumask_of(smp_processor_id());
- cd->event_handler = event_handler;
- cd->set_next_event = next_event;
-
- iact = &per_cpu(timer_irq, cpu);
- iact->flags = IRQF_SHARED | IRQF_TIMER;
- iact->handler = timer_interrupt;
-
- clockevents_register_device(cd);
-
-#if defined(CONFIG_SMP) && !defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
- /* setup timer irq affinity so it only runs on this cpu */
- {
- struct irq_data *data;
- data = irq_get_irq_data(cd->irq);
- cpumask_copy(irq_data_get_affinity_mask(data), cpumask_of(cpu));
- iact->flags |= IRQF_NOBALANCING;
- }
-#endif
-
- if (cpu == 0) {
- reload_jiffies_counter(MN10300_JC_PER_HZ - 1);
- iact->name = "CPU0 Timer";
- } else {
- reload_jiffies_counter1(MN10300_JC_PER_HZ - 1);
- iact->name = "CPU1 Timer";
- }
-
- setup_jiffies_interrupt(cd->irq, iact);
-
- return 0;
-}
+++ /dev/null
-/* MN10300 clocksource
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by Mark Salter (msalter@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/clocksource.h>
-#include <linux/init.h>
-#include <asm/timex.h>
-#include "internal.h"
-
-static u64 mn10300_read(struct clocksource *cs)
-{
- return read_timestamp_counter();
-}
-
-static struct clocksource clocksource_mn10300 = {
- .name = "TSC",
- .rating = 200,
- .read = mn10300_read,
- .mask = CLOCKSOURCE_MASK(32),
- .flags = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
-int __init init_clocksource(void)
-{
- startup_timestamp_counter();
- clocksource_register_hz(&clocksource_mn10300, MN10300_TSCCLK);
- return 0;
-}
+++ /dev/null
-###############################################################################
-#
-# MN10300 Exception and interrupt entry points
-#
-# Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
-# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
-# Modified by David Howells (dhowells@redhat.com)
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public Licence
-# as published by the Free Software Foundation; either version
-# 2 of the Licence, or (at your option) any later version.
-#
-###############################################################################
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/smp.h>
-#include <asm/irqflags.h>
-#include <asm/thread_info.h>
-#include <asm/intctl-regs.h>
-#include <asm/busctl-regs.h>
-#include <asm/timer-regs.h>
-#include <unit/leds.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/errno.h>
-#include <asm/asm-offsets.h>
-#include <asm/frame.inc>
-
-#if defined(CONFIG_SMP) && defined(CONFIG_GDBSTUB)
-#include <asm/gdb-stub.h>
-#endif /* CONFIG_SMP && CONFIG_GDBSTUB */
-
-#ifdef CONFIG_PREEMPT
-#define preempt_stop LOCAL_IRQ_DISABLE
-#else
-#define preempt_stop
-#define resume_kernel restore_all
-#endif
-
- .am33_2
-
-###############################################################################
-#
-# the return path for a forked child
-# - on entry, D0 holds the address of the previous task to run
-#
-###############################################################################
-ENTRY(ret_from_fork)
- call schedule_tail[],0
- GET_THREAD_INFO a2
-
- # return 0 to indicate child process
- clr d0
- mov d0,(REG_D0,fp)
- jmp syscall_exit
-
-ENTRY(ret_from_kernel_thread)
- call schedule_tail[],0
- mov (REG_D0,fp),d0
- mov (REG_A0,fp),a0
- calls (a0)
- GET_THREAD_INFO a2 # A2 must be set on return from sys_exit()
- clr d0
- mov d0,(REG_D0,fp)
- jmp syscall_exit
-
-###############################################################################
-#
-# system call handler
-#
-###############################################################################
-ENTRY(system_call)
- add -4,sp
- SAVE_ALL
- mov d0,(REG_ORIG_D0,fp)
- GET_THREAD_INFO a2
- cmp nr_syscalls,d0
- bcc syscall_badsys
- btst _TIF_SYSCALL_TRACE,(TI_flags,a2)
- bne syscall_entry_trace
-syscall_call:
- add d0,d0,a1
- add a1,a1
- mov (REG_A0,fp),d0
- mov (sys_call_table,a1),a0
- calls (a0)
- mov d0,(REG_D0,fp)
-syscall_exit:
- # make sure we don't miss an interrupt setting need_resched or
- # sigpending between sampling and the rti
- LOCAL_IRQ_DISABLE
- mov (TI_flags,a2),d2
- btst _TIF_ALLWORK_MASK,d2
- bne syscall_exit_work
-restore_all:
- RESTORE_ALL
-
-###############################################################################
-#
-# perform work that needs to be done immediately before resumption and syscall
-# tracing
-#
-###############################################################################
- ALIGN
-syscall_exit_work:
- mov (REG_EPSW,fp),d0
- and EPSW_nSL,d0
- beq resume_kernel # returning to supervisor mode
-
- LOCAL_IRQ_ENABLE # could let syscall_trace_exit() call
- # schedule() instead
- btst _TIF_SYSCALL_TRACE,d2
- beq work_pending
- mov fp,d0
- call syscall_trace_exit[],0 # do_syscall_trace(regs)
- jmp resume_userspace
-
- ALIGN
-work_pending:
- btst _TIF_NEED_RESCHED,d2
- beq work_notifysig
-
-work_resched:
- call schedule[],0
-
-resume_userspace:
- # make sure we don't miss an interrupt setting need_resched or
- # sigpending between sampling and the rti
- LOCAL_IRQ_DISABLE
-
- # is there any work to be done other than syscall tracing?
- mov (TI_flags,a2),d2
- btst _TIF_WORK_MASK,d2
- beq restore_all
-
- LOCAL_IRQ_ENABLE
- btst _TIF_NEED_RESCHED,d2
- bne work_resched
-
- # deal with pending signals and notify-resume requests
-work_notifysig:
- mov fp,d0
- mov d2,d1
- call do_notify_resume[],0
- jmp resume_userspace
-
- # perform syscall entry tracing
-syscall_entry_trace:
- mov -ENOSYS,d0
- mov d0,(REG_D0,fp)
- mov fp,d0
- call syscall_trace_entry[],0 # returns the syscall number to actually use
- mov (REG_D1,fp),d1
- cmp nr_syscalls,d0
- bcs syscall_call
- jmp syscall_exit
-
-syscall_badsys:
- mov -ENOSYS,d0
- mov d0,(REG_D0,fp)
- jmp resume_userspace
-
- # userspace resumption stub bypassing syscall exit tracing
- .globl ret_from_exception, ret_from_intr
- ALIGN
-ret_from_exception:
- preempt_stop
-ret_from_intr:
- GET_THREAD_INFO a2
- mov (REG_EPSW,fp),d0 # need to deliver signals before
- # returning to userspace
- and EPSW_nSL,d0
- bne resume_userspace # returning to userspace
-
-#ifdef CONFIG_PREEMPT
-resume_kernel:
- LOCAL_IRQ_DISABLE
- mov (TI_preempt_count,a2),d0 # non-zero preempt_count ?
- cmp 0,d0
- bne restore_all
-
-need_resched:
- btst _TIF_NEED_RESCHED,(TI_flags,a2)
- beq restore_all
- mov (REG_EPSW,fp),d0
- and EPSW_IM,d0
- cmp EPSW_IM_7,d0 # interrupts off (exception path) ?
- bne restore_all
- call preempt_schedule_irq[],0
- jmp need_resched
-#else
- jmp resume_kernel
-#endif
-
-
-###############################################################################
-#
-# IRQ handler entry point
-# - intended to be entered at multiple priorities
-#
-###############################################################################
-ENTRY(irq_handler)
- add -4,sp
- SAVE_ALL
-
- # it's not a syscall
- mov 0xffffffff,d0
- mov d0,(REG_ORIG_D0,fp)
-
- mov fp,d0
- call do_IRQ[],0 # do_IRQ(regs)
-
- jmp ret_from_intr
-
-###############################################################################
-#
-# Double Fault handler entry point
-# - note that there will not be a stack, D0/A0 will hold EPSW/PC as were
-#
-###############################################################################
- .section .bss
- .balign THREAD_SIZE
- .space THREAD_SIZE
-__df_stack:
- .previous
-
-ENTRY(double_fault)
- mov a0,(__df_stack-4) # PC as was
- mov d0,(__df_stack-8) # EPSW as was
- mn10300_set_dbfleds # display 'db-f' on the LEDs
- mov 0xaa55aa55,d0
- mov d0,(__df_stack-12) # no ORIG_D0
- mov sp,a0 # save corrupted SP
- mov __df_stack-12,sp # emergency supervisor stack
- SAVE_ALL
- mov a0,(REG_A0,fp) # save corrupted SP as A0 (which got
- # clobbered by the CPU)
- mov fp,d0
- calls do_double_fault
-double_fault_loop:
- bra double_fault_loop
-
-###############################################################################
-#
-# Bus Error handler entry point
-# - handle external (async) bus errors separately
-#
-###############################################################################
-ENTRY(raw_bus_error)
- add -4,sp
- mov d0,(sp)
-#if defined(CONFIG_ERRATUM_NEED_TO_RELOAD_MMUCTR)
- mov (MMUCTR),d0
- mov d0,(MMUCTR)
-#endif
- mov (BCBERR),d0 # what
- btst BCBERR_BEMR_DMA,d0 # see if it was an external bus error
- beq __common_exception_aux # it wasn't
-
- SAVE_ALL
- mov (BCBEAR),d1 # destination of erroneous access
-
- mov (REG_ORIG_D0,fp),d2
- mov d2,(REG_D0,fp)
- mov -1,d2
- mov d2,(REG_ORIG_D0,fp)
-
- add -4,sp
- mov fp,(12,sp) # frame pointer
- call io_bus_error[],0
- jmp restore_all
-
-###############################################################################
-#
-# NMI exception entry points
-#
-# This is used by ordinary interrupt channels that have the GxICR_NMI bit set
-# in addition to the main NMI and Watchdog channels. SMP NMI IPIs use this
-# facility.
-#
-###############################################################################
-ENTRY(nmi_handler)
- add -4,sp
- mov d0,(sp)
- mov (TBR),d0
-
-#ifdef CONFIG_SMP
- add -4,sp
- mov d0,(sp) # save d0(TBR)
- movhu (NMIAGR),d0
- and NMIAGR_GN,d0
- lsr 0x2,d0
- cmp CALL_FUNCTION_NMI_IPI,d0
- bne nmi_not_smp_callfunc # if not call function, jump
-
- # function call nmi ipi
- add 4,sp # no need to store TBR
- mov GxICR_DETECT,d0 # clear NMI request
- movbu d0,(GxICR(CALL_FUNCTION_NMI_IPI))
- movhu (GxICR(CALL_FUNCTION_NMI_IPI)),d0
- and ~EPSW_NMID,epsw # enable NMI
-
- mov (sp),d0 # restore d0
- SAVE_ALL
- call smp_nmi_call_function_interrupt[],0
- RESTORE_ALL
-
-nmi_not_smp_callfunc:
-#ifdef CONFIG_KERNEL_DEBUGGER
- cmp DEBUGGER_NMI_IPI,d0
- bne nmi_not_debugger # if not kernel debugger NMI IPI, jump
-
- # kernel debugger NMI IPI
- add 4,sp # no need to store TBR
- mov GxICR_DETECT,d0 # clear NMI
- movbu d0,(GxICR(DEBUGGER_NMI_IPI))
- movhu (GxICR(DEBUGGER_NMI_IPI)),d0
- and ~EPSW_NMID,epsw # enable NMI
-
- mov (sp),d0
- SAVE_ALL
- mov fp,d0 # arg 0: stacked register file
- mov a2,d1 # arg 1: exception number
- call debugger_nmi_interrupt[],0
- RESTORE_ALL
-
-nmi_not_debugger:
-#endif /* CONFIG_KERNEL_DEBUGGER */
- mov (sp),d0 # restore TBR to d0
- add 4,sp
-#endif /* CONFIG_SMP */
-
- bra __common_exception_nonmi
-
-###############################################################################
-#
-# General exception entry point
-#
-###############################################################################
-ENTRY(__common_exception)
- add -4,sp
- mov d0,(sp)
-#if defined(CONFIG_ERRATUM_NEED_TO_RELOAD_MMUCTR)
- mov (MMUCTR),d0
- mov d0,(MMUCTR)
-#endif
-
-__common_exception_aux:
- mov (TBR),d0
- and ~EPSW_NMID,epsw # turn NMIs back on if not NMI
- or EPSW_IE,epsw
-
-__common_exception_nonmi:
- and 0x0000FFFF,d0 # turn the exception code into a vector
- # table index
-
- btst 0x00000007,d0
- bne 1f
- cmp 0x00000400,d0
- bge 1f
-
- SAVE_ALL # build the stack frame
-
- mov (REG_D0,fp),a2 # get the exception number
- mov (REG_ORIG_D0,fp),d0
- mov d0,(REG_D0,fp)
- mov -1,d0
- mov d0,(REG_ORIG_D0,fp)
-
-#ifdef CONFIG_GDBSTUB
-#ifdef CONFIG_SMP
- call gdbstub_busy_check[],0
- and d0,d0 # check return value
- beq 2f
-#else /* CONFIG_SMP */
- btst 0x01,(gdbstub_busy)
- beq 2f
-#endif /* CONFIG_SMP */
- and ~EPSW_IE,epsw
- mov fp,d0
- mov a2,d1
- call gdbstub_exception[],0 # gdbstub itself caused an exception
- bra restore_all
-2:
-#endif /* CONFIG_GDBSTUB */
-
- mov fp,d0 # arg 0: stacked register file
- mov a2,d1 # arg 1: exception number
- lsr 1,a2
-
- mov (exception_table,a2),a2
- calls (a2)
- jmp ret_from_exception
-
-1: pi # BUG() equivalent
-
-###############################################################################
-#
-# Exception handler functions table
-#
-###############################################################################
- .data
-ENTRY(exception_table)
- .rept 0x400>>1
- .long uninitialised_exception
- .endr
- .previous
-
-###############################################################################
-#
-# Change an entry in the exception table
-# - D0 exception code, D1 handler
-#
-###############################################################################
-ENTRY(set_excp_vector)
- lsr 1,d0
- add exception_table,d0
- mov d1,(d0)
- mov 4,d1
- ret [],0
-
-###############################################################################
-#
-# System call table
-#
-###############################################################################
- .data
-ENTRY(sys_call_table)
- .long sys_restart_syscall /* 0 */
- .long sys_exit
- .long sys_fork
- .long sys_read
- .long sys_write
- .long sys_open /* 5 */
- .long sys_close
- .long sys_waitpid
- .long sys_creat
- .long sys_link
- .long sys_unlink /* 10 */
- .long sys_execve
- .long sys_chdir
- .long sys_time
- .long sys_mknod
- .long sys_chmod /* 15 */
- .long sys_lchown16
- .long sys_ni_syscall /* old break syscall holder */
- .long sys_stat
- .long sys_lseek
- .long sys_getpid /* 20 */
- .long sys_mount
- .long sys_oldumount
- .long sys_setuid16
- .long sys_getuid16
- .long sys_stime /* 25 */
- .long sys_ptrace
- .long sys_alarm
- .long sys_fstat
- .long sys_pause
- .long sys_utime /* 30 */
- .long sys_ni_syscall /* old stty syscall holder */
- .long sys_ni_syscall /* old gtty syscall holder */
- .long sys_access
- .long sys_nice
- .long sys_ni_syscall /* 35 - old ftime syscall holder */
- .long sys_sync
- .long sys_kill
- .long sys_rename
- .long sys_mkdir
- .long sys_rmdir /* 40 */
- .long sys_dup
- .long sys_pipe
- .long sys_times
- .long sys_ni_syscall /* old prof syscall holder */
- .long sys_brk /* 45 */
- .long sys_setgid16
- .long sys_getgid16
- .long sys_signal
- .long sys_geteuid16
- .long sys_getegid16 /* 50 */
- .long sys_acct
- .long sys_umount /* recycled never used phys() */
- .long sys_ni_syscall /* old lock syscall holder */
- .long sys_ioctl
- .long sys_fcntl /* 55 */
- .long sys_ni_syscall /* old mpx syscall holder */
- .long sys_setpgid
- .long sys_ni_syscall /* old ulimit syscall holder */
- .long sys_ni_syscall /* old sys_olduname */
- .long sys_umask /* 60 */
- .long sys_chroot
- .long sys_ustat
- .long sys_dup2
- .long sys_getppid
- .long sys_getpgrp /* 65 */
- .long sys_setsid
- .long sys_sigaction
- .long sys_sgetmask
- .long sys_ssetmask
- .long sys_setreuid16 /* 70 */
- .long sys_setregid16
- .long sys_sigsuspend
- .long sys_sigpending
- .long sys_sethostname
- .long sys_setrlimit /* 75 */
- .long sys_old_getrlimit
- .long sys_getrusage
- .long sys_gettimeofday
- .long sys_settimeofday
- .long sys_getgroups16 /* 80 */
- .long sys_setgroups16
- .long sys_old_select
- .long sys_symlink
- .long sys_lstat
- .long sys_readlink /* 85 */
- .long sys_uselib
- .long sys_swapon
- .long sys_reboot
- .long sys_old_readdir
- .long old_mmap /* 90 */
- .long sys_munmap
- .long sys_truncate
- .long sys_ftruncate
- .long sys_fchmod
- .long sys_fchown16 /* 95 */
- .long sys_getpriority
- .long sys_setpriority
- .long sys_ni_syscall /* old profil syscall holder */
- .long sys_statfs
- .long sys_fstatfs /* 100 */
- .long sys_ni_syscall /* ioperm */
- .long sys_socketcall
- .long sys_syslog
- .long sys_setitimer
- .long sys_getitimer /* 105 */
- .long sys_newstat
- .long sys_newlstat
- .long sys_newfstat
- .long sys_ni_syscall /* old sys_uname */
- .long sys_ni_syscall /* 110 - iopl */
- .long sys_vhangup
- .long sys_ni_syscall /* old "idle" system call */
- .long sys_ni_syscall /* vm86old */
- .long sys_wait4
- .long sys_swapoff /* 115 */
- .long sys_sysinfo
- .long sys_ipc
- .long sys_fsync
- .long sys_sigreturn
- .long sys_clone /* 120 */
- .long sys_setdomainname
- .long sys_newuname
- .long sys_ni_syscall /* modify_ldt */
- .long sys_adjtimex
- .long sys_mprotect /* 125 */
- .long sys_sigprocmask
- .long sys_ni_syscall /* old "create_module" */
- .long sys_init_module
- .long sys_delete_module
- .long sys_ni_syscall /* 130: old "get_kernel_syms" */
- .long sys_quotactl
- .long sys_getpgid
- .long sys_fchdir
- .long sys_bdflush
- .long sys_sysfs /* 135 */
- .long sys_personality
- .long sys_ni_syscall /* reserved for afs_syscall */
- .long sys_setfsuid16
- .long sys_setfsgid16
- .long sys_llseek /* 140 */
- .long sys_getdents
- .long sys_select
- .long sys_flock
- .long sys_msync
- .long sys_readv /* 145 */
- .long sys_writev
- .long sys_getsid
- .long sys_fdatasync
- .long sys_sysctl
- .long sys_mlock /* 150 */
- .long sys_munlock
- .long sys_mlockall
- .long sys_munlockall
- .long sys_sched_setparam
- .long sys_sched_getparam /* 155 */
- .long sys_sched_setscheduler
- .long sys_sched_getscheduler
- .long sys_sched_yield
- .long sys_sched_get_priority_max
- .long sys_sched_get_priority_min /* 160 */
- .long sys_sched_rr_get_interval
- .long sys_nanosleep
- .long sys_mremap
- .long sys_setresuid16
- .long sys_getresuid16 /* 165 */
- .long sys_ni_syscall /* vm86 */
- .long sys_ni_syscall /* Old sys_query_module */
- .long sys_poll
- .long sys_ni_syscall /* was nfsservctl */
- .long sys_setresgid16 /* 170 */
- .long sys_getresgid16
- .long sys_prctl
- .long sys_rt_sigreturn
- .long sys_rt_sigaction
- .long sys_rt_sigprocmask /* 175 */
- .long sys_rt_sigpending
- .long sys_rt_sigtimedwait
- .long sys_rt_sigqueueinfo
- .long sys_rt_sigsuspend
- .long sys_pread64 /* 180 */
- .long sys_pwrite64
- .long sys_chown16
- .long sys_getcwd
- .long sys_capget
- .long sys_capset /* 185 */
- .long sys_sigaltstack
- .long sys_sendfile
- .long sys_ni_syscall /* reserved for streams1 */
- .long sys_ni_syscall /* reserved for streams2 */
- .long sys_vfork /* 190 */
- .long sys_getrlimit
- .long sys_mmap_pgoff
- .long sys_truncate64
- .long sys_ftruncate64
- .long sys_stat64 /* 195 */
- .long sys_lstat64
- .long sys_fstat64
- .long sys_lchown
- .long sys_getuid
- .long sys_getgid /* 200 */
- .long sys_geteuid
- .long sys_getegid
- .long sys_setreuid
- .long sys_setregid
- .long sys_getgroups /* 205 */
- .long sys_setgroups
- .long sys_fchown
- .long sys_setresuid
- .long sys_getresuid
- .long sys_setresgid /* 210 */
- .long sys_getresgid
- .long sys_chown
- .long sys_setuid
- .long sys_setgid
- .long sys_setfsuid /* 215 */
- .long sys_setfsgid
- .long sys_pivot_root
- .long sys_mincore
- .long sys_madvise
- .long sys_getdents64 /* 220 */
- .long sys_fcntl64
- .long sys_ni_syscall /* reserved for TUX */
- .long sys_ni_syscall
- .long sys_gettid
- .long sys_readahead /* 225 */
- .long sys_setxattr
- .long sys_lsetxattr
- .long sys_fsetxattr
- .long sys_getxattr
- .long sys_lgetxattr /* 230 */
- .long sys_fgetxattr
- .long sys_listxattr
- .long sys_llistxattr
- .long sys_flistxattr
- .long sys_removexattr /* 235 */
- .long sys_lremovexattr
- .long sys_fremovexattr
- .long sys_tkill
- .long sys_sendfile64
- .long sys_futex /* 240 */
- .long sys_sched_setaffinity
- .long sys_sched_getaffinity
- .long sys_ni_syscall /* sys_set_thread_area */
- .long sys_ni_syscall /* sys_get_thread_area */
- .long sys_io_setup /* 245 */
- .long sys_io_destroy
- .long sys_io_getevents
- .long sys_io_submit
- .long sys_io_cancel
- .long sys_fadvise64 /* 250 */
- .long sys_ni_syscall
- .long sys_exit_group
- .long sys_lookup_dcookie
- .long sys_epoll_create
- .long sys_epoll_ctl /* 255 */
- .long sys_epoll_wait
- .long sys_remap_file_pages
- .long sys_set_tid_address
- .long sys_timer_create
- .long sys_timer_settime /* 260 */
- .long sys_timer_gettime
- .long sys_timer_getoverrun
- .long sys_timer_delete
- .long sys_clock_settime
- .long sys_clock_gettime /* 265 */
- .long sys_clock_getres
- .long sys_clock_nanosleep
- .long sys_statfs64
- .long sys_fstatfs64
- .long sys_tgkill /* 270 */
- .long sys_utimes
- .long sys_fadvise64_64
- .long sys_ni_syscall /* sys_vserver */
- .long sys_mbind
- .long sys_get_mempolicy /* 275 */
- .long sys_set_mempolicy
- .long sys_mq_open
- .long sys_mq_unlink
- .long sys_mq_timedsend
- .long sys_mq_timedreceive /* 280 */
- .long sys_mq_notify
- .long sys_mq_getsetattr
- .long sys_kexec_load
- .long sys_waitid
- .long sys_ni_syscall /* 285 */ /* available */
- .long sys_add_key
- .long sys_request_key
- .long sys_keyctl
- .long sys_cacheflush
- .long sys_ioprio_set /* 290 */
- .long sys_ioprio_get
- .long sys_inotify_init
- .long sys_inotify_add_watch
- .long sys_inotify_rm_watch
- .long sys_migrate_pages /* 295 */
- .long sys_openat
- .long sys_mkdirat
- .long sys_mknodat
- .long sys_fchownat
- .long sys_futimesat /* 300 */
- .long sys_fstatat64
- .long sys_unlinkat
- .long sys_renameat
- .long sys_linkat
- .long sys_symlinkat /* 305 */
- .long sys_readlinkat
- .long sys_fchmodat
- .long sys_faccessat
- .long sys_pselect6
- .long sys_ppoll /* 310 */
- .long sys_unshare
- .long sys_set_robust_list
- .long sys_get_robust_list
- .long sys_splice
- .long sys_sync_file_range /* 315 */
- .long sys_tee
- .long sys_vmsplice
- .long sys_move_pages
- .long sys_getcpu
- .long sys_epoll_pwait /* 320 */
- .long sys_utimensat
- .long sys_signalfd
- .long sys_timerfd_create
- .long sys_eventfd
- .long sys_fallocate /* 325 */
- .long sys_timerfd_settime
- .long sys_timerfd_gettime
- .long sys_signalfd4
- .long sys_eventfd2
- .long sys_epoll_create1 /* 330 */
- .long sys_dup3
- .long sys_pipe2
- .long sys_inotify_init1
- .long sys_preadv
- .long sys_pwritev /* 335 */
- .long sys_rt_tgsigqueueinfo
- .long sys_perf_event_open
- .long sys_recvmmsg
- .long sys_setns
-
-
-nr_syscalls=(.-sys_call_table)/4
+++ /dev/null
-/* MN10300 Low level FPU management operations
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/linkage.h>
-#include <asm/cpu-regs.h>
-#include <asm/smp.h>
-#include <asm/thread_info.h>
-#include <asm/asm-offsets.h>
-#include <asm/frame.inc>
-
-.macro FPU_INIT_STATE_ALL
- fmov 0,fs0
- fmov fs0,fs1
- fmov fs0,fs2
- fmov fs0,fs3
- fmov fs0,fs4
- fmov fs0,fs5
- fmov fs0,fs6
- fmov fs0,fs7
- fmov fs0,fs8
- fmov fs0,fs9
- fmov fs0,fs10
- fmov fs0,fs11
- fmov fs0,fs12
- fmov fs0,fs13
- fmov fs0,fs14
- fmov fs0,fs15
- fmov fs0,fs16
- fmov fs0,fs17
- fmov fs0,fs18
- fmov fs0,fs19
- fmov fs0,fs20
- fmov fs0,fs21
- fmov fs0,fs22
- fmov fs0,fs23
- fmov fs0,fs24
- fmov fs0,fs25
- fmov fs0,fs26
- fmov fs0,fs27
- fmov fs0,fs28
- fmov fs0,fs29
- fmov fs0,fs30
- fmov fs0,fs31
- fmov FPCR_INIT,fpcr
-.endm
-
-.macro FPU_SAVE_ALL areg,dreg
- fmov fs0,(\areg+)
- fmov fs1,(\areg+)
- fmov fs2,(\areg+)
- fmov fs3,(\areg+)
- fmov fs4,(\areg+)
- fmov fs5,(\areg+)
- fmov fs6,(\areg+)
- fmov fs7,(\areg+)
- fmov fs8,(\areg+)
- fmov fs9,(\areg+)
- fmov fs10,(\areg+)
- fmov fs11,(\areg+)
- fmov fs12,(\areg+)
- fmov fs13,(\areg+)
- fmov fs14,(\areg+)
- fmov fs15,(\areg+)
- fmov fs16,(\areg+)
- fmov fs17,(\areg+)
- fmov fs18,(\areg+)
- fmov fs19,(\areg+)
- fmov fs20,(\areg+)
- fmov fs21,(\areg+)
- fmov fs22,(\areg+)
- fmov fs23,(\areg+)
- fmov fs24,(\areg+)
- fmov fs25,(\areg+)
- fmov fs26,(\areg+)
- fmov fs27,(\areg+)
- fmov fs28,(\areg+)
- fmov fs29,(\areg+)
- fmov fs30,(\areg+)
- fmov fs31,(\areg+)
- fmov fpcr,\dreg
- mov \dreg,(\areg)
-.endm
-
-.macro FPU_RESTORE_ALL areg,dreg
- fmov (\areg+),fs0
- fmov (\areg+),fs1
- fmov (\areg+),fs2
- fmov (\areg+),fs3
- fmov (\areg+),fs4
- fmov (\areg+),fs5
- fmov (\areg+),fs6
- fmov (\areg+),fs7
- fmov (\areg+),fs8
- fmov (\areg+),fs9
- fmov (\areg+),fs10
- fmov (\areg+),fs11
- fmov (\areg+),fs12
- fmov (\areg+),fs13
- fmov (\areg+),fs14
- fmov (\areg+),fs15
- fmov (\areg+),fs16
- fmov (\areg+),fs17
- fmov (\areg+),fs18
- fmov (\areg+),fs19
- fmov (\areg+),fs20
- fmov (\areg+),fs21
- fmov (\areg+),fs22
- fmov (\areg+),fs23
- fmov (\areg+),fs24
- fmov (\areg+),fs25
- fmov (\areg+),fs26
- fmov (\areg+),fs27
- fmov (\areg+),fs28
- fmov (\areg+),fs29
- fmov (\areg+),fs30
- fmov (\areg+),fs31
- mov (\areg),\dreg
- fmov \dreg,fpcr
-.endm
-
-###############################################################################
-#
-# void fpu_init_state(void)
-# - initialise the FPU
-#
-###############################################################################
- .globl fpu_init_state
- .type fpu_init_state,@function
-fpu_init_state:
- mov epsw,d0
- or EPSW_FE,epsw
-
-#ifdef CONFIG_MN10300_PROC_MN103E010
- nop
- nop
- nop
-#endif
- FPU_INIT_STATE_ALL
-#ifdef CONFIG_MN10300_PROC_MN103E010
- nop
- nop
- nop
-#endif
- mov d0,epsw
- ret [],0
-
- .size fpu_init_state,.-fpu_init_state
-
-###############################################################################
-#
-# void fpu_save(struct fpu_state_struct *)
-# - save the fpu state
-# - note that an FPU Operational exception might occur during this process
-#
-###############################################################################
- .globl fpu_save
- .type fpu_save,@function
-fpu_save:
- mov epsw,d1
- or EPSW_FE,epsw /* enable the FPU so we can access it */
-
-#ifdef CONFIG_MN10300_PROC_MN103E010
- nop
- nop
-#endif
- mov d0,a0
- FPU_SAVE_ALL a0,d0
-#ifdef CONFIG_MN10300_PROC_MN103E010
- nop
- nop
-#endif
-
- mov d1,epsw
- ret [],0
-
- .size fpu_save,.-fpu_save
-
-###############################################################################
-#
-# void fpu_disabled(void)
-# - handle an exception due to the FPU being disabled
-# when CONFIG_FPU is enabled
-#
-###############################################################################
- .type fpu_disabled,@function
- .globl fpu_disabled
-fpu_disabled:
- or EPSW_nAR|EPSW_FE,epsw
- nop
- nop
- nop
-
- mov sp,a1
- mov (a1),d1 /* get epsw of user context */
- and ~(THREAD_SIZE-1),a1 /* a1: (thread_info *ti) */
- mov (TI_task,a1),a2 /* a2: (task_struct *tsk) */
- btst EPSW_nSL,d1
- beq fpu_used_in_kernel
-
- or EPSW_FE,d1
- mov d1,(sp)
- mov (TASK_THREAD+THREAD_FPU_FLAGS,a2),d1
-#ifndef CONFIG_LAZY_SAVE_FPU
- or __THREAD_HAS_FPU,d1
- mov d1,(TASK_THREAD+THREAD_FPU_FLAGS,a2)
-#else /* !CONFIG_LAZY_SAVE_FPU */
- mov (fpu_state_owner),a0
- cmp 0,a0
- beq fpu_regs_save_end
-
- mov (TASK_THREAD+THREAD_UREGS,a0),a1
- add TASK_THREAD+THREAD_FPU_STATE,a0
- FPU_SAVE_ALL a0,d0
-
- mov (REG_EPSW,a1),d0
- and ~EPSW_FE,d0
- mov d0,(REG_EPSW,a1)
-
-fpu_regs_save_end:
- mov a2,(fpu_state_owner)
-#endif /* !CONFIG_LAZY_SAVE_FPU */
-
- btst __THREAD_USING_FPU,d1
- beq fpu_regs_init
- add TASK_THREAD+THREAD_FPU_STATE,a2
- FPU_RESTORE_ALL a2,d0
- rti
-
-fpu_regs_init:
- FPU_INIT_STATE_ALL
- add TASK_THREAD+THREAD_FPU_FLAGS,a2
- bset __THREAD_USING_FPU,(0,a2)
- rti
-
-fpu_used_in_kernel:
- and ~(EPSW_nAR|EPSW_FE),epsw
- nop
- nop
-
- add -4,sp
- SAVE_ALL
- mov -1,d0
- mov d0,(REG_ORIG_D0,fp)
-
- and ~EPSW_NMID,epsw
-
- mov fp,d0
- call fpu_disabled_in_kernel[],0
- jmp ret_from_exception
-
- .size fpu_disabled,.-fpu_disabled
+++ /dev/null
-/* MN10300 Low level FPU management operations
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/linkage.h>
-#include <asm/cpu-regs.h>
-#include <asm/smp.h>
-#include <asm/thread_info.h>
-#include <asm/asm-offsets.h>
-#include <asm/frame.inc>
-
-###############################################################################
-#
-# void fpu_disabled(void)
-# - handle an exception due to the FPU being disabled
-# when CONFIG_FPU is disabled
-#
-###############################################################################
- .type fpu_disabled,@function
- .globl fpu_disabled
-fpu_disabled:
- add -4,sp
- SAVE_ALL
- mov -1,d0
- mov d0,(REG_ORIG_D0,fp)
-
- and ~EPSW_NMID,epsw
-
- mov fp,d0
- call unexpected_fpu_exception[],0
- jmp ret_from_exception
-
- .size fpu_disabled,.-fpu_disabled
+++ /dev/null
-/* MN10300 FPU management
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <asm/fpu.h>
-#include <asm/elf.h>
-
-/*
- * handle an FPU operational exception
- * - there's a possibility that if the FPU is asynchronous, the signal might
- * be meant for a process other than the current one
- */
-asmlinkage
-void unexpected_fpu_exception(struct pt_regs *regs, enum exception_code code)
-{
- panic("An FPU exception was received, but there's no FPU enabled.");
-}
-
-/*
- * fill in the FPU structure for a core dump
- */
-int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpreg)
-{
- return 0; /* not valid */
-}
+++ /dev/null
-/* MN10300 FPU management
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/uaccess.h>
-#include <linux/sched/signal.h>
-
-#include <asm/fpu.h>
-#include <asm/elf.h>
-#include <asm/exceptions.h>
-
-#ifdef CONFIG_LAZY_SAVE_FPU
-struct task_struct *fpu_state_owner;
-#endif
-
-/*
- * error functions in FPU disabled exception
- */
-asmlinkage void fpu_disabled_in_kernel(struct pt_regs *regs)
-{
- die_if_no_fixup("An FPU Disabled exception happened in kernel space\n",
- regs, EXCEP_FPU_DISABLED);
-}
-
-/*
- * handle an FPU operational exception
- * - there's a possibility that if the FPU is asynchronous, the signal might
- * be meant for a process other than the current one
- */
-asmlinkage void fpu_exception(struct pt_regs *regs, enum exception_code code)
-{
- struct task_struct *tsk = current;
- siginfo_t info;
- u32 fpcr;
-
- if (!user_mode(regs))
- die_if_no_fixup("An FPU Operation exception happened in"
- " kernel space\n",
- regs, code);
-
- if (!is_using_fpu(tsk))
- die_if_no_fixup("An FPU Operation exception happened,"
- " but the FPU is not in use",
- regs, code);
-
- info.si_signo = SIGFPE;
- info.si_errno = 0;
- info.si_addr = (void *) tsk->thread.uregs->pc;
- info.si_code = FPE_FLTINV;
-
- unlazy_fpu(tsk);
-
- fpcr = tsk->thread.fpu_state.fpcr;
-
- if (fpcr & FPCR_EC_Z)
- info.si_code = FPE_FLTDIV;
- else if (fpcr & FPCR_EC_O)
- info.si_code = FPE_FLTOVF;
- else if (fpcr & FPCR_EC_U)
- info.si_code = FPE_FLTUND;
- else if (fpcr & FPCR_EC_I)
- info.si_code = FPE_FLTRES;
-
- force_sig_info(SIGFPE, &info, tsk);
-}
-
-/*
- * save the FPU state to a signal context
- */
-int fpu_setup_sigcontext(struct fpucontext *fpucontext)
-{
- struct task_struct *tsk = current;
-
- if (!is_using_fpu(tsk))
- return 0;
-
- /* transfer the current FPU state to memory and cause fpu_init() to be
- * triggered by the next attempted FPU operation by the current
- * process.
- */
- preempt_disable();
-
-#ifndef CONFIG_LAZY_SAVE_FPU
- if (tsk->thread.fpu_flags & THREAD_HAS_FPU) {
- fpu_save(&tsk->thread.fpu_state);
- tsk->thread.uregs->epsw &= ~EPSW_FE;
- tsk->thread.fpu_flags &= ~THREAD_HAS_FPU;
- }
-#else /* !CONFIG_LAZY_SAVE_FPU */
- if (fpu_state_owner == tsk) {
- fpu_save(&tsk->thread.fpu_state);
- fpu_state_owner->thread.uregs->epsw &= ~EPSW_FE;
- fpu_state_owner = NULL;
- }
-#endif /* !CONFIG_LAZY_SAVE_FPU */
-
- preempt_enable();
-
- /* we no longer have a valid current FPU state */
- clear_using_fpu(tsk);
-
- /* transfer the saved FPU state onto the userspace stack */
- if (copy_to_user(fpucontext,
- &tsk->thread.fpu_state,
- min(sizeof(struct fpu_state_struct),
- sizeof(struct fpucontext))))
- return -1;
-
- return 1;
-}
-
-/*
- * kill a process's FPU state during restoration after signal handling
- */
-void fpu_kill_state(struct task_struct *tsk)
-{
- /* disown anything left in the FPU */
- preempt_disable();
-
-#ifndef CONFIG_LAZY_SAVE_FPU
- if (tsk->thread.fpu_flags & THREAD_HAS_FPU) {
- tsk->thread.uregs->epsw &= ~EPSW_FE;
- tsk->thread.fpu_flags &= ~THREAD_HAS_FPU;
- }
-#else /* !CONFIG_LAZY_SAVE_FPU */
- if (fpu_state_owner == tsk) {
- fpu_state_owner->thread.uregs->epsw &= ~EPSW_FE;
- fpu_state_owner = NULL;
- }
-#endif /* !CONFIG_LAZY_SAVE_FPU */
-
- preempt_enable();
-
- /* we no longer have a valid current FPU state */
- clear_using_fpu(tsk);
-}
-
-/*
- * restore the FPU state from a signal context
- */
-int fpu_restore_sigcontext(struct fpucontext *fpucontext)
-{
- struct task_struct *tsk = current;
- int ret;
-
- /* load up the old FPU state */
- ret = copy_from_user(&tsk->thread.fpu_state, fpucontext,
- min(sizeof(struct fpu_state_struct),
- sizeof(struct fpucontext)));
- if (!ret)
- set_using_fpu(tsk);
-
- return ret;
-}
-
-/*
- * fill in the FPU structure for a core dump
- */
-int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpreg)
-{
- struct task_struct *tsk = current;
- int fpvalid;
-
- fpvalid = is_using_fpu(tsk);
- if (fpvalid) {
- unlazy_fpu(tsk);
- memcpy(fpreg, &tsk->thread.fpu_state, sizeof(*fpreg));
- }
-
- return fpvalid;
-}
+++ /dev/null
-###############################################################################
-#
-# 16550 serial Rx interrupt handler for gdbstub I/O
-#
-# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
-# Written by David Howells (dhowells@redhat.com)
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public Licence
-# as published by the Free Software Foundation; either version
-# 2 of the Licence, or (at your option) any later version.
-#
-###############################################################################
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/smp.h>
-#include <asm/cpu-regs.h>
-#include <asm/thread_info.h>
-#include <asm/frame.inc>
-#include <asm/intctl-regs.h>
-#include <asm/irqflags.h>
-#include <unit/serial.h>
-
- .text
-
-###############################################################################
-#
-# GDB stub serial receive interrupt entry point
-# - intended to run at interrupt priority 0
-#
-###############################################################################
- .globl gdbstub_io_rx_handler
- .type gdbstub_io_rx_handler,@function
-gdbstub_io_rx_handler:
- movm [d2,d3,a2,a3],(sp)
-
-#if 1
- movbu (GDBPORT_SERIAL_IIR),d2
-#endif
-
- mov (gdbstub_rx_inp),a3
-gdbstub_io_rx_more:
- mov a3,a2
- add 2,a3
- and 0x00000fff,a3
- mov (gdbstub_rx_outp),d3
- cmp a3,d3
- beq gdbstub_io_rx_overflow
-
- movbu (GDBPORT_SERIAL_LSR),d3
- btst UART_LSR_DR,d3
- beq gdbstub_io_rx_done
- movbu (GDBPORT_SERIAL_RX),d2
- movbu d3,(gdbstub_rx_buffer+1,a2)
- movbu d2,(gdbstub_rx_buffer,a2)
- mov a3,(gdbstub_rx_inp)
- bra gdbstub_io_rx_more
-
-gdbstub_io_rx_done:
- mov GxICR_DETECT,d2
- movbu d2,(XIRQxICR(GDBPORT_SERIAL_IRQ)) # ACK the interrupt
- movhu (XIRQxICR(GDBPORT_SERIAL_IRQ)),d2 # flush
- movm (sp),[d2,d3,a2,a3]
- bset 0x01,(gdbstub_busy)
- beq gdbstub_io_rx_enter
- rti
-
-gdbstub_io_rx_overflow:
- bset 0x01,(gdbstub_rx_overflow)
- bra gdbstub_io_rx_done
-
-gdbstub_io_rx_enter:
- LOCAL_CHANGE_INTR_MASK_LEVEL(NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL+1))
- add -4,sp
- SAVE_ALL
-
- mov 0xffffffff,d0
- mov d0,(REG_ORIG_D0,fp)
- mov 0x280,d1
-
- mov fp,d0
- call gdbstub_rx_irq[],0 # gdbstub_rx_irq(regs,excep)
-
- LOCAL_CLI
- bclr 0x01,(gdbstub_busy)
-
- .globl gdbstub_return
-gdbstub_return:
- RESTORE_ALL
-
- .size gdbstub_io_rx_handler,.-gdbstub_io_rx_handler
+++ /dev/null
-/* 16550 serial driver for gdbstub I/O
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/console.h>
-#include <linux/init.h>
-#include <linux/nmi.h>
-
-#include <asm/pgtable.h>
-#include <asm/gdb-stub.h>
-#include <asm/exceptions.h>
-#include <asm/serial-regs.h>
-#include <unit/serial.h>
-#include <asm/smp.h>
-
-/*
- * initialise the GDB stub
- */
-void gdbstub_io_init(void)
-{
- u16 tmp;
-
- /* set up the serial port */
- GDBPORT_SERIAL_LCR = UART_LCR_WLEN8; /* 1N8 */
- GDBPORT_SERIAL_FCR = (UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR |
- UART_FCR_CLEAR_XMIT);
-
- FLOWCTL_CLEAR(DTR);
- FLOWCTL_SET(RTS);
-
- gdbstub_io_set_baud(115200);
-
- /* we want to get serial receive interrupts */
- XIRQxICR(GDBPORT_SERIAL_IRQ) = 0;
- tmp = XIRQxICR(GDBPORT_SERIAL_IRQ);
-
-#if CONFIG_GDBSTUB_IRQ_LEVEL == 0
- IVAR0 = EXCEP_IRQ_LEVEL0;
-#elif CONFIG_GDBSTUB_IRQ_LEVEL == 1
- IVAR1 = EXCEP_IRQ_LEVEL1;
-#elif CONFIG_GDBSTUB_IRQ_LEVEL == 2
- IVAR2 = EXCEP_IRQ_LEVEL2;
-#elif CONFIG_GDBSTUB_IRQ_LEVEL == 3
- IVAR3 = EXCEP_IRQ_LEVEL3;
-#elif CONFIG_GDBSTUB_IRQ_LEVEL == 4
- IVAR4 = EXCEP_IRQ_LEVEL4;
-#elif CONFIG_GDBSTUB_IRQ_LEVEL == 5
- IVAR5 = EXCEP_IRQ_LEVEL5;
-#else
-#error "Unknown irq level for gdbstub."
-#endif
-
- set_intr_stub(NUM2EXCEP_IRQ_LEVEL(CONFIG_GDBSTUB_IRQ_LEVEL),
- gdbstub_io_rx_handler);
-
- XIRQxICR(GDBPORT_SERIAL_IRQ) &= ~GxICR_REQUEST;
- XIRQxICR(GDBPORT_SERIAL_IRQ) =
- GxICR_ENABLE | NUM2GxICR_LEVEL(CONFIG_GDBSTUB_IRQ_LEVEL);
- tmp = XIRQxICR(GDBPORT_SERIAL_IRQ);
-
- GDBPORT_SERIAL_IER = UART_IER_RDI | UART_IER_RLSI;
-
- /* permit level 0 IRQs to take place */
- arch_local_change_intr_mask_level(
- NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL + 1));
-}
-
-/*
- * set up the GDB stub serial port baud rate timers
- */
-void gdbstub_io_set_baud(unsigned baud)
-{
- unsigned value;
- u8 lcr;
-
- value = 18432000 / 16 / baud;
-
- lcr = GDBPORT_SERIAL_LCR;
- GDBPORT_SERIAL_LCR |= UART_LCR_DLAB;
- GDBPORT_SERIAL_DLL = value & 0xff;
- GDBPORT_SERIAL_DLM = (value >> 8) & 0xff;
- GDBPORT_SERIAL_LCR = lcr;
-}
-
-/*
- * wait for a character to come from the debugger
- */
-int gdbstub_io_rx_char(unsigned char *_ch, int nonblock)
-{
- unsigned ix;
- u8 ch, st;
-#if defined(CONFIG_MN10300_WD_TIMER)
- int cpu;
-#endif
-
- *_ch = 0xff;
-
- if (gdbstub_rx_unget) {
- *_ch = gdbstub_rx_unget;
- gdbstub_rx_unget = 0;
- return 0;
- }
-
- try_again:
- /* pull chars out of the buffer */
- ix = gdbstub_rx_outp;
- barrier();
- if (ix == gdbstub_rx_inp) {
- if (nonblock)
- return -EAGAIN;
-#ifdef CONFIG_MN10300_WD_TIMER
- for (cpu = 0; cpu < NR_CPUS; cpu++)
- watchdog_alert_counter[cpu] = 0;
-#endif
- goto try_again;
- }
-
- ch = gdbstub_rx_buffer[ix++];
- st = gdbstub_rx_buffer[ix++];
- barrier();
- gdbstub_rx_outp = ix & 0x00000fff;
-
- if (st & UART_LSR_BI) {
- gdbstub_proto("### GDB Rx Break Detected ###\n");
- return -EINTR;
- } else if (st & (UART_LSR_FE | UART_LSR_OE | UART_LSR_PE)) {
- gdbstub_proto("### GDB Rx Error (st=%02x) ###\n", st);
- return -EIO;
- } else {
- gdbstub_proto("### GDB Rx %02x (st=%02x) ###\n", ch, st);
- *_ch = ch & 0x7f;
- return 0;
- }
-}
-
-/*
- * send a character to the debugger
- */
-void gdbstub_io_tx_char(unsigned char ch)
-{
- FLOWCTL_SET(DTR);
- LSR_WAIT_FOR(THRE);
- /* FLOWCTL_WAIT_FOR(CTS); */
-
- if (ch == 0x0a) {
- GDBPORT_SERIAL_TX = 0x0d;
- LSR_WAIT_FOR(THRE);
- /* FLOWCTL_WAIT_FOR(CTS); */
- }
- GDBPORT_SERIAL_TX = ch;
-
- FLOWCTL_CLEAR(DTR);
-}
-
-/*
- * send a character to the debugger
- */
-void gdbstub_io_tx_flush(void)
-{
- LSR_WAIT_FOR(TEMT);
- LSR_WAIT_FOR(THRE);
- FLOWCTL_CLEAR(DTR);
-}
+++ /dev/null
-###############################################################################
-#
-# MN10300 On-chip serial Rx interrupt handler for GDB stub I/O
-#
-# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
-# Written by David Howells (dhowells@redhat.com)
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public Licence
-# as published by the Free Software Foundation; either version
-# 2 of the Licence, or (at your option) any later version.
-#
-###############################################################################
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/smp.h>
-#include <asm/thread_info.h>
-#include <asm/cpu-regs.h>
-#include <asm/frame.inc>
-#include <asm/intctl-regs.h>
-#include <unit/serial.h>
-#include "mn10300-serial.h"
-
- .text
-
-###############################################################################
-#
-# GDB stub serial receive interrupt entry point
-# - intended to run at interrupt priority 0
-#
-###############################################################################
- .globl gdbstub_io_rx_handler
- .type gdbstub_io_rx_handler,@function
-gdbstub_io_rx_handler:
- movm [d2,d3,a2,a3],(sp)
-
- mov (gdbstub_rx_inp),a3
-gdbstub_io_rx_more:
- mov a3,a2
- add 2,a3
- and PAGE_SIZE_asm-1,a3
- mov (gdbstub_rx_outp),d3
- cmp a3,d3
- beq gdbstub_io_rx_overflow
-
- movbu (SCgSTR),d3
- btst SC01STR_RBF,d3
- beq gdbstub_io_rx_done
- movbu (SCgRXB),d2
- movbu d3,(gdbstub_rx_buffer+1,a2)
- movbu d2,(gdbstub_rx_buffer,a2)
- mov a3,(gdbstub_rx_inp)
- bra gdbstub_io_rx_more
-
-gdbstub_io_rx_done:
- mov GxICR_DETECT,d2
- movbu d2,(GxICR(SCgRXIRQ)) # ACK the interrupt
- movhu (GxICR(SCgRXIRQ)),d2 # flush
-
- movm (sp),[d2,d3,a2,a3]
- bset 0x01,(gdbstub_busy)
- beq gdbstub_io_rx_enter
- rti
-
-gdbstub_io_rx_overflow:
- bset 0x01,(gdbstub_rx_overflow)
- bra gdbstub_io_rx_done
-
-###############################################################################
-#
-# debugging interrupt - enter the GDB stub proper
-#
-###############################################################################
-gdbstub_io_rx_enter:
- or EPSW_IE|EPSW_IM_1,epsw
- add -4,sp
- SAVE_ALL
-
- mov 0xffffffff,d0
- mov d0,(REG_ORIG_D0,fp)
- mov 0x280,d1
-
- mov fp,d0
- call gdbstub_rx_irq[],0 # gdbstub_io_rx_irq(regs,excep)
-
- and ~EPSW_IE,epsw
- bclr 0x01,(gdbstub_busy)
-
- .globl gdbstub_return
-gdbstub_return:
- RESTORE_ALL
-
- .size gdbstub_io_rx_handler,.-gdbstub_io_rx_handler
+++ /dev/null
-/* MN10300 On-chip serial driver for gdbstub I/O
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/console.h>
-#include <linux/init.h>
-#include <linux/tty.h>
-#include <asm/pgtable.h>
-#include <asm/gdb-stub.h>
-#include <asm/exceptions.h>
-#include <unit/clock.h>
-#include "mn10300-serial.h"
-
-#if defined(CONFIG_GDBSTUB_ON_TTYSM0)
-struct mn10300_serial_port *const gdbstub_port = &mn10300_serial_port_sif0;
-#elif defined(CONFIG_GDBSTUB_ON_TTYSM1)
-struct mn10300_serial_port *const gdbstub_port = &mn10300_serial_port_sif1;
-#else
-struct mn10300_serial_port *const gdbstub_port = &mn10300_serial_port_sif2;
-#endif
-
-
-/*
- * initialise the GDB stub I/O routines
- */
-void __init gdbstub_io_init(void)
-{
- uint16_t scxctr;
- int tmp;
-
- switch (gdbstub_port->clock_src) {
- case MNSCx_CLOCK_SRC_IOCLK:
- gdbstub_port->ioclk = MN10300_IOCLK;
- break;
-
-#ifdef MN10300_IOBCLK
- case MNSCx_CLOCK_SRC_IOBCLK:
- gdbstub_port->ioclk = MN10300_IOBCLK;
- break;
-#endif
- default:
- BUG();
- }
-
- /* set up the serial port */
- gdbstub_io_set_baud(115200);
-
- /* we want to get serial receive interrupts */
- set_intr_level(gdbstub_port->rx_irq,
- NUM2GxICR_LEVEL(CONFIG_DEBUGGER_IRQ_LEVEL));
- set_intr_level(gdbstub_port->tx_irq,
- NUM2GxICR_LEVEL(CONFIG_DEBUGGER_IRQ_LEVEL));
- set_intr_stub(NUM2EXCEP_IRQ_LEVEL(CONFIG_DEBUGGER_IRQ_LEVEL),
- gdbstub_io_rx_handler);
-
- *gdbstub_port->rx_icr |= GxICR_ENABLE;
- tmp = *gdbstub_port->rx_icr;
-
- /* enable the device */
- scxctr = SC01CTR_CLN_8BIT; /* 1N8 */
- switch (gdbstub_port->div_timer) {
- case MNSCx_DIV_TIMER_16BIT:
- scxctr |= SC0CTR_CK_TM8UFLOW_8; /* == SC1CTR_CK_TM9UFLOW_8
- == SC2CTR_CK_TM10UFLOW_8 */
- break;
-
- case MNSCx_DIV_TIMER_8BIT:
- scxctr |= SC0CTR_CK_TM2UFLOW_8;
- break;
- }
-
- scxctr |= SC01CTR_TXE | SC01CTR_RXE;
-
- *gdbstub_port->_control = scxctr;
- tmp = *gdbstub_port->_control;
-
- /* permit level 0 IRQs only */
- arch_local_change_intr_mask_level(
- NUM2EPSW_IM(CONFIG_DEBUGGER_IRQ_LEVEL + 1));
-}
-
-/*
- * set up the GDB stub serial port baud rate timers
- */
-void gdbstub_io_set_baud(unsigned baud)
-{
- const unsigned bits = 10; /* 1 [start] + 8 [data] + 0 [parity] +
- * 1 [stop] */
- unsigned long ioclk = gdbstub_port->ioclk;
- unsigned xdiv, tmp;
- uint16_t tmxbr;
- uint8_t tmxmd;
-
- if (!baud) {
- baud = 9600;
- } else if (baud == 134) {
- baud = 269; /* 134 is really 134.5 */
- xdiv = 2;
- }
-
-try_alternative:
- xdiv = 1;
-
- switch (gdbstub_port->div_timer) {
- case MNSCx_DIV_TIMER_16BIT:
- tmxmd = TM8MD_SRC_IOCLK;
- tmxbr = tmp = (ioclk / (baud * xdiv) + 4) / 8 - 1;
- if (tmp > 0 && tmp <= 65535)
- goto timer_okay;
-
- tmxmd = TM8MD_SRC_IOCLK_8;
- tmxbr = tmp = (ioclk / (baud * 8 * xdiv) + 4) / 8 - 1;
- if (tmp > 0 && tmp <= 65535)
- goto timer_okay;
-
- tmxmd = TM8MD_SRC_IOCLK_32;
- tmxbr = tmp = (ioclk / (baud * 32 * xdiv) + 4) / 8 - 1;
- if (tmp > 0 && tmp <= 65535)
- goto timer_okay;
-
- break;
-
- case MNSCx_DIV_TIMER_8BIT:
- tmxmd = TM2MD_SRC_IOCLK;
- tmxbr = tmp = (ioclk / (baud * xdiv) + 4) / 8 - 1;
- if (tmp > 0 && tmp <= 255)
- goto timer_okay;
-
- tmxmd = TM2MD_SRC_IOCLK_8;
- tmxbr = tmp = (ioclk / (baud * 8 * xdiv) + 4) / 8 - 1;
- if (tmp > 0 && tmp <= 255)
- goto timer_okay;
-
- tmxmd = TM2MD_SRC_IOCLK_32;
- tmxbr = tmp = (ioclk / (baud * 32 * xdiv) + 4) / 8 - 1;
- if (tmp > 0 && tmp <= 255)
- goto timer_okay;
- break;
- }
-
- /* as a last resort, if the quotient is zero, default to 9600 bps */
- baud = 9600;
- goto try_alternative;
-
-timer_okay:
- gdbstub_port->uart.timeout = (2 * bits * HZ) / baud;
- gdbstub_port->uart.timeout += HZ / 50;
-
- /* set the timer to produce the required baud rate */
- switch (gdbstub_port->div_timer) {
- case MNSCx_DIV_TIMER_16BIT:
- *gdbstub_port->_tmxmd = 0;
- *gdbstub_port->_tmxbr = tmxbr;
- *gdbstub_port->_tmxmd = TM8MD_INIT_COUNTER;
- *gdbstub_port->_tmxmd = tmxmd | TM8MD_COUNT_ENABLE;
- break;
-
- case MNSCx_DIV_TIMER_8BIT:
- *gdbstub_port->_tmxmd = 0;
- *(volatile u8 *) gdbstub_port->_tmxbr = (u8)tmxbr;
- *gdbstub_port->_tmxmd = TM2MD_INIT_COUNTER;
- *gdbstub_port->_tmxmd = tmxmd | TM2MD_COUNT_ENABLE;
- break;
- }
-}
-
-/*
- * wait for a character to come from the debugger
- */
-int gdbstub_io_rx_char(unsigned char *_ch, int nonblock)
-{
- unsigned ix;
- u8 ch, st;
-#if defined(CONFIG_MN10300_WD_TIMER)
- int cpu;
-#endif
-
- *_ch = 0xff;
-
- if (gdbstub_rx_unget) {
- *_ch = gdbstub_rx_unget;
- gdbstub_rx_unget = 0;
- return 0;
- }
-
-try_again:
- /* pull chars out of the buffer */
- ix = gdbstub_rx_outp;
- barrier();
- if (ix == gdbstub_rx_inp) {
- if (nonblock)
- return -EAGAIN;
-#ifdef CONFIG_MN10300_WD_TIMER
- for (cpu = 0; cpu < NR_CPUS; cpu++)
- watchdog_alert_counter[cpu] = 0;
-#endif
- goto try_again;
- }
-
- ch = gdbstub_rx_buffer[ix++];
- st = gdbstub_rx_buffer[ix++];
- barrier();
- gdbstub_rx_outp = ix & (PAGE_SIZE - 1);
-
- st &= SC01STR_RXF | SC01STR_RBF | SC01STR_FEF | SC01STR_PEF |
- SC01STR_OEF;
-
- /* deal with what we've got
- * - note that the UART doesn't do BREAK-detection for us
- */
- if (st & SC01STR_FEF && ch == 0) {
- switch (gdbstub_port->rx_brk) {
- case 0: gdbstub_port->rx_brk = 1; goto try_again;
- case 1: gdbstub_port->rx_brk = 2; goto try_again;
- case 2:
- gdbstub_port->rx_brk = 3;
- gdbstub_proto("### GDB MNSERIAL Rx Break Detected"
- " ###\n");
- return -EINTR;
- default:
- goto try_again;
- }
- } else if (st & SC01STR_FEF) {
- if (gdbstub_port->rx_brk)
- goto try_again;
-
- gdbstub_proto("### GDB MNSERIAL Framing Error ###\n");
- return -EIO;
- } else if (st & SC01STR_OEF) {
- if (gdbstub_port->rx_brk)
- goto try_again;
-
- gdbstub_proto("### GDB MNSERIAL Overrun Error ###\n");
- return -EIO;
- } else if (st & SC01STR_PEF) {
- if (gdbstub_port->rx_brk)
- goto try_again;
-
- gdbstub_proto("### GDB MNSERIAL Parity Error ###\n");
- return -EIO;
- } else {
- /* look for the tail-end char on a break run */
- if (gdbstub_port->rx_brk == 3) {
- switch (ch) {
- case 0xFF:
- case 0xFE:
- case 0xFC:
- case 0xF8:
- case 0xF0:
- case 0xE0:
- case 0xC0:
- case 0x80:
- case 0x00:
- gdbstub_port->rx_brk = 0;
- goto try_again;
- default:
- break;
- }
- }
-
- gdbstub_port->rx_brk = 0;
- gdbstub_io("### GDB Rx %02x (st=%02x) ###\n", ch, st);
- *_ch = ch & 0x7f;
- return 0;
- }
-}
-
-/*
- * send a character to the debugger
- */
-void gdbstub_io_tx_char(unsigned char ch)
-{
- while (*gdbstub_port->_status & SC01STR_TBF)
- continue;
-
- if (ch == 0x0a) {
- *(u8 *) gdbstub_port->_txb = 0x0d;
- while (*gdbstub_port->_status & SC01STR_TBF)
- continue;
- }
-
- *(u8 *) gdbstub_port->_txb = ch;
-}
-
-/*
- * flush the transmission buffers
- */
-void gdbstub_io_tx_flush(void)
-{
- while (*gdbstub_port->_status & (SC01STR_TBF | SC01STR_TXF))
- continue;
-}
+++ /dev/null
-###############################################################################
-#
-# MN10300 Low-level gdbstub routines
-#
-# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
-# Written by David Howells (dhowells@redhat.com)
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public Licence
-# as published by the Free Software Foundation; either version
-# 2 of the Licence, or (at your option) any later version.
-#
-###############################################################################
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/smp.h>
-#include <asm/cache.h>
-#include <asm/cpu-regs.h>
-#include <asm/exceptions.h>
-#include <asm/frame.inc>
-#include <asm/serial-regs.h>
-
- .text
-
-###############################################################################
-#
-# GDB stub read memory with guard
-# - D0 holds the memory address to read
-# - D1 holds the address to store the byte into
-#
-###############################################################################
- .globl gdbstub_read_byte_guard
- .globl gdbstub_read_byte_cont
-ENTRY(gdbstub_read_byte)
- mov d0,a0
- mov d1,a1
- clr d0
-gdbstub_read_byte_guard:
- movbu (a0),d1
-gdbstub_read_byte_cont:
- movbu d1,(a1)
- ret [],0
-
- .globl gdbstub_read_word_guard
- .globl gdbstub_read_word_cont
-ENTRY(gdbstub_read_word)
- mov d0,a0
- mov d1,a1
- clr d0
-gdbstub_read_word_guard:
- movhu (a0),d1
-gdbstub_read_word_cont:
- movhu d1,(a1)
- ret [],0
-
- .globl gdbstub_read_dword_guard
- .globl gdbstub_read_dword_cont
-ENTRY(gdbstub_read_dword)
- mov d0,a0
- mov d1,a1
- clr d0
-gdbstub_read_dword_guard:
- mov (a0),d1
-gdbstub_read_dword_cont:
- mov d1,(a1)
- ret [],0
-
-###############################################################################
-#
-# GDB stub write memory with guard
-# - D0 holds the byte to store
-# - D1 holds the memory address to write
-#
-###############################################################################
- .globl gdbstub_write_byte_guard
- .globl gdbstub_write_byte_cont
-ENTRY(gdbstub_write_byte)
- mov d0,a0
- mov d1,a1
- clr d0
-gdbstub_write_byte_guard:
- movbu a0,(a1)
-gdbstub_write_byte_cont:
- ret [],0
-
- .globl gdbstub_write_word_guard
- .globl gdbstub_write_word_cont
-ENTRY(gdbstub_write_word)
- mov d0,a0
- mov d1,a1
- clr d0
-gdbstub_write_word_guard:
- movhu a0,(a1)
-gdbstub_write_word_cont:
- ret [],0
-
- .globl gdbstub_write_dword_guard
- .globl gdbstub_write_dword_cont
-ENTRY(gdbstub_write_dword)
- mov d0,a0
- mov d1,a1
- clr d0
-gdbstub_write_dword_guard:
- mov a0,(a1)
-gdbstub_write_dword_cont:
- ret [],0
-
-###############################################################################
-#
-# GDB stub BUG() trap
-#
-###############################################################################
-ENTRY(__gdbstub_bug_trap)
- .byte 0xF7,0xF7 # don't use 0xFF as the JTAG unit preempts that
- ret [],0
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-/* MN10300 GDB stub
- *
- * Originally written by Glenn Engel, Lake Stevens Instrument Division
- *
- * Contributed by HP Systems
- *
- * Modified for SPARC by Stu Grossman, Cygnus Support.
- *
- * Modified for Linux/MIPS (and MIPS in general) by Andreas Busse
- * Send complaints, suggestions etc. to <andy@waldorf-gmbh.de>
- *
- * Copyright (C) 1995 Andreas Busse
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Modified for Linux/mn10300 by David Howells <dhowells@redhat.com>
- */
-
-/*
- * To enable debugger support, two things need to happen. One, a
- * call to set_debug_traps() is necessary in order to allow any breakpoints
- * or error conditions to be properly intercepted and reported to gdb.
- * Two, a breakpoint needs to be generated to begin communication. This
- * is most easily accomplished by a call to breakpoint(). Breakpoint()
- * simulates a breakpoint by executing a BREAK instruction.
- *
- *
- * The following gdb commands are supported:
- *
- * command function Return value
- *
- * g return the value of the CPU registers hex data or ENN
- * G set the value of the CPU registers OK or ENN
- *
- * mAA..AA,LLLL Read LLLL bytes at address AA..AA hex data or ENN
- * MAA..AA,LLLL: Write LLLL bytes at address AA.AA OK or ENN
- *
- * c Resume at current address SNN ( signal NN)
- * cAA..AA Continue at address AA..AA SNN
- *
- * s Step one instruction SNN
- * sAA..AA Step one instruction from AA..AA SNN
- *
- * k kill
- *
- * ? What was the last sigval ? SNN (signal NN)
- *
- * bBB..BB Set baud rate to BB..BB OK or BNN, then sets
- * baud rate
- *
- * All commands and responses are sent with a packet which includes a
- * checksum. A packet consists of
- *
- * $<packet info>#<checksum>.
- *
- * where
- * <packet info> :: <characters representing the command or response>
- * <checksum> :: < two hex digits computed as modulo 256 sum of <packetinfo>>
- *
- * When a packet is received, it is first acknowledged with either '+' or '-'.
- * '+' indicates a successful transfer. '-' indicates a failed transfer.
- *
- * Example:
- *
- * Host: Reply:
- * $m0,10#2a +$00010203040506070809101112131415#42
- *
- *
- * ==============
- * MORE EXAMPLES:
- * ==============
- *
- * For reference -- the following are the steps that one
- * company took (RidgeRun Inc) to get remote gdb debugging
- * going. In this scenario the host machine was a PC and the
- * target platform was a Galileo EVB64120A MIPS evaluation
- * board.
- *
- * Step 1:
- * First download gdb-5.0.tar.gz from the internet.
- * and then build/install the package.
- *
- * Example:
- * $ tar zxf gdb-5.0.tar.gz
- * $ cd gdb-5.0
- * $ ./configure --target=am33_2.0-linux-gnu
- * $ make
- * $ install
- * am33_2.0-linux-gnu-gdb
- *
- * Step 2:
- * Configure linux for remote debugging and build it.
- *
- * Example:
- * $ cd ~/linux
- * $ make menuconfig <go to "Kernel Hacking" and turn on remote debugging>
- * $ make dep; make vmlinux
- *
- * Step 3:
- * Download the kernel to the remote target and start
- * the kernel running. It will promptly halt and wait
- * for the host gdb session to connect. It does this
- * since the "Kernel Hacking" option has defined
- * CONFIG_REMOTE_DEBUG which in turn enables your calls
- * to:
- * set_debug_traps();
- * breakpoint();
- *
- * Step 4:
- * Start the gdb session on the host.
- *
- * Example:
- * $ am33_2.0-linux-gnu-gdb vmlinux
- * (gdb) set remotebaud 115200
- * (gdb) target remote /dev/ttyS1
- * ...at this point you are connected to
- * the remote target and can use gdb
- * in the normal fasion. Setting
- * breakpoints, single stepping,
- * printing variables, etc.
- *
- */
-
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/console.h>
-#include <linux/init.h>
-#include <linux/bug.h>
-
-#include <asm/pgtable.h>
-#include <asm/gdb-stub.h>
-#include <asm/exceptions.h>
-#include <asm/debugger.h>
-#include <asm/serial-regs.h>
-#include <asm/busctl-regs.h>
-#include <unit/leds.h>
-#include <unit/serial.h>
-
-/* define to use F7F7 rather than FF which is subverted by JTAG debugger */
-#undef GDBSTUB_USE_F7F7_AS_BREAKPOINT
-
-/*
- * BUFMAX defines the maximum number of characters in inbound/outbound buffers
- * at least NUMREGBYTES*2 are needed for register packets
- */
-#define BUFMAX 2048
-
-static const char gdbstub_banner[] =
- "Linux/MN10300 GDB Stub (c) RedHat 2007\n";
-
-u8 gdbstub_rx_buffer[PAGE_SIZE] __attribute__((aligned(PAGE_SIZE)));
-u32 gdbstub_rx_inp;
-u32 gdbstub_rx_outp;
-u8 gdbstub_busy;
-u8 gdbstub_rx_overflow;
-u8 gdbstub_rx_unget;
-
-static u8 gdbstub_flush_caches;
-static char input_buffer[BUFMAX];
-static char output_buffer[BUFMAX];
-static char trans_buffer[BUFMAX];
-
-struct gdbstub_bkpt {
- u8 *addr; /* address of breakpoint */
- u8 len; /* size of breakpoint */
- u8 origbytes[7]; /* original bytes */
-};
-
-static struct gdbstub_bkpt gdbstub_bkpts[256];
-
-/*
- * local prototypes
- */
-static void getpacket(char *buffer);
-static int putpacket(char *buffer);
-static int computeSignal(enum exception_code excep);
-static int hex(unsigned char ch);
-static int hexToInt(char **ptr, int *intValue);
-static unsigned char *mem2hex(const void *mem, char *buf, int count,
- int may_fault);
-static const char *hex2mem(const char *buf, void *_mem, int count,
- int may_fault);
-
-/*
- * Convert ch from a hex digit to an int
- */
-static int hex(unsigned char ch)
-{
- if (ch >= 'a' && ch <= 'f')
- return ch - 'a' + 10;
- if (ch >= '0' && ch <= '9')
- return ch - '0';
- if (ch >= 'A' && ch <= 'F')
- return ch - 'A' + 10;
- return -1;
-}
-
-#ifdef CONFIG_GDBSTUB_DEBUGGING
-
-void debug_to_serial(const char *p, int n)
-{
- __debug_to_serial(p, n);
- /* gdbstub_console_write(NULL, p, n); */
-}
-
-void gdbstub_printk(const char *fmt, ...)
-{
- va_list args;
- int len;
-
- /* Emit the output into the temporary buffer */
- va_start(args, fmt);
- len = vsnprintf(trans_buffer, sizeof(trans_buffer), fmt, args);
- va_end(args);
- debug_to_serial(trans_buffer, len);
-}
-
-#endif
-
-static inline char *gdbstub_strcpy(char *dst, const char *src)
-{
- int loop = 0;
- while ((dst[loop] = src[loop]))
- loop++;
- return dst;
-}
-
-/*
- * scan for the sequence $<data>#<checksum>
- */
-static void getpacket(char *buffer)
-{
- unsigned char checksum;
- unsigned char xmitcsum;
- unsigned char ch;
- int count, i, ret, error;
-
- for (;;) {
- /*
- * wait around for the start character,
- * ignore all other characters
- */
- do {
- gdbstub_io_rx_char(&ch, 0);
- } while (ch != '$');
-
- checksum = 0;
- xmitcsum = -1;
- count = 0;
- error = 0;
-
- /*
- * now, read until a # or end of buffer is found
- */
- while (count < BUFMAX) {
- ret = gdbstub_io_rx_char(&ch, 0);
- if (ret < 0)
- error = ret;
-
- if (ch == '#')
- break;
- checksum += ch;
- buffer[count] = ch;
- count++;
- }
-
- if (error == -EIO) {
- gdbstub_proto("### GDB Rx Error - Skipping packet"
- " ###\n");
- gdbstub_proto("### GDB Tx NAK\n");
- gdbstub_io_tx_char('-');
- continue;
- }
-
- if (count >= BUFMAX || error)
- continue;
-
- buffer[count] = 0;
-
- /* read the checksum */
- ret = gdbstub_io_rx_char(&ch, 0);
- if (ret < 0)
- error = ret;
- xmitcsum = hex(ch) << 4;
-
- ret = gdbstub_io_rx_char(&ch, 0);
- if (ret < 0)
- error = ret;
- xmitcsum |= hex(ch);
-
- if (error) {
- if (error == -EIO)
- gdbstub_io("### GDB Rx Error -"
- " Skipping packet\n");
- gdbstub_io("### GDB Tx NAK\n");
- gdbstub_io_tx_char('-');
- continue;
- }
-
- /* check the checksum */
- if (checksum != xmitcsum) {
- gdbstub_io("### GDB Tx NAK\n");
- gdbstub_io_tx_char('-'); /* failed checksum */
- continue;
- }
-
- gdbstub_proto("### GDB Rx '$%s#%02x' ###\n", buffer, checksum);
- gdbstub_io("### GDB Tx ACK\n");
- gdbstub_io_tx_char('+'); /* successful transfer */
-
- /*
- * if a sequence char is present,
- * reply the sequence ID
- */
- if (buffer[2] == ':') {
- gdbstub_io_tx_char(buffer[0]);
- gdbstub_io_tx_char(buffer[1]);
-
- /*
- * remove sequence chars from buffer
- */
- count = 0;
- while (buffer[count])
- count++;
- for (i = 3; i <= count; i++)
- buffer[i - 3] = buffer[i];
- }
-
- break;
- }
-}
-
-/*
- * send the packet in buffer.
- * - return 0 if successfully ACK'd
- * - return 1 if abandoned due to new incoming packet
- */
-static int putpacket(char *buffer)
-{
- unsigned char checksum;
- unsigned char ch;
- int count;
-
- /*
- * $<packet info>#<checksum>.
- */
- gdbstub_proto("### GDB Tx $'%s'#?? ###\n", buffer);
-
- do {
- gdbstub_io_tx_char('$');
- checksum = 0;
- count = 0;
-
- while ((ch = buffer[count]) != 0) {
- gdbstub_io_tx_char(ch);
- checksum += ch;
- count += 1;
- }
-
- gdbstub_io_tx_char('#');
- gdbstub_io_tx_char(hex_asc_hi(checksum));
- gdbstub_io_tx_char(hex_asc_lo(checksum));
-
- } while (gdbstub_io_rx_char(&ch, 0),
- ch == '-' && (gdbstub_io("### GDB Rx NAK\n"), 0),
- ch != '-' && ch != '+' &&
- (gdbstub_io("### GDB Rx ??? %02x\n", ch), 0),
- ch != '+' && ch != '$');
-
- if (ch == '+') {
- gdbstub_io("### GDB Rx ACK\n");
- return 0;
- }
-
- gdbstub_io("### GDB Tx Abandoned\n");
- gdbstub_rx_unget = ch;
- return 1;
-}
-
-/*
- * While we find nice hex chars, build an int.
- * Return number of chars processed.
- */
-static int hexToInt(char **ptr, int *intValue)
-{
- int numChars = 0;
- int hexValue;
-
- *intValue = 0;
-
- while (**ptr) {
- hexValue = hex(**ptr);
- if (hexValue < 0)
- break;
-
- *intValue = (*intValue << 4) | hexValue;
- numChars++;
-
- (*ptr)++;
- }
-
- return (numChars);
-}
-
-#ifdef CONFIG_GDBSTUB_ALLOW_SINGLE_STEP
-/*
- * We single-step by setting breakpoints. When an exception
- * is handled, we need to restore the instructions hoisted
- * when the breakpoints were set.
- *
- * This is where we save the original instructions.
- */
-static struct gdb_bp_save {
- u8 *addr;
- u8 opcode[2];
-} step_bp[2];
-
-static const unsigned char gdbstub_insn_sizes[256] =
-{
- /* 1 2 3 4 5 6 7 8 9 a b c d e f */
- 1, 3, 3, 3, 1, 3, 3, 3, 1, 3, 3, 3, 1, 3, 3, 3, /* 0 */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 1 */
- 2, 2, 2, 2, 3, 3, 3, 3, 2, 2, 2, 2, 3, 3, 3, 3, /* 2 */
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, /* 3 */
- 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, /* 4 */
- 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, /* 5 */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 6 */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 7 */
- 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* 8 */
- 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* 9 */
- 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* a */
- 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* b */
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 2, 2, /* c */
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* d */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* e */
- 0, 2, 2, 2, 2, 2, 2, 4, 0, 3, 0, 4, 0, 6, 7, 1 /* f */
-};
-
-static int __gdbstub_mark_bp(u8 *addr, int ix)
-{
- /* vmalloc area */
- if (((u8 *) VMALLOC_START <= addr) && (addr < (u8 *) VMALLOC_END))
- goto okay;
- /* SRAM, SDRAM */
- if (((u8 *) 0x80000000UL <= addr) && (addr < (u8 *) 0xa0000000UL))
- goto okay;
- return 0;
-
-okay:
- if (gdbstub_read_byte(addr + 0, &step_bp[ix].opcode[0]) < 0 ||
- gdbstub_read_byte(addr + 1, &step_bp[ix].opcode[1]) < 0)
- return 0;
-
- step_bp[ix].addr = addr;
- return 1;
-}
-
-static inline void __gdbstub_restore_bp(void)
-{
-#ifdef GDBSTUB_USE_F7F7_AS_BREAKPOINT
- if (step_bp[0].addr) {
- gdbstub_write_byte(step_bp[0].opcode[0], step_bp[0].addr + 0);
- gdbstub_write_byte(step_bp[0].opcode[1], step_bp[0].addr + 1);
- }
- if (step_bp[1].addr) {
- gdbstub_write_byte(step_bp[1].opcode[0], step_bp[1].addr + 0);
- gdbstub_write_byte(step_bp[1].opcode[1], step_bp[1].addr + 1);
- }
-#else
- if (step_bp[0].addr)
- gdbstub_write_byte(step_bp[0].opcode[0], step_bp[0].addr + 0);
- if (step_bp[1].addr)
- gdbstub_write_byte(step_bp[1].opcode[0], step_bp[1].addr + 0);
-#endif
-
- gdbstub_flush_caches = 1;
-
- step_bp[0].addr = NULL;
- step_bp[0].opcode[0] = 0;
- step_bp[0].opcode[1] = 0;
- step_bp[1].addr = NULL;
- step_bp[1].opcode[0] = 0;
- step_bp[1].opcode[1] = 0;
-}
-
-/*
- * emulate single stepping by means of breakpoint instructions
- */
-static int gdbstub_single_step(struct pt_regs *regs)
-{
- unsigned size;
- uint32_t x;
- uint8_t cur, *pc, *sp;
-
- step_bp[0].addr = NULL;
- step_bp[0].opcode[0] = 0;
- step_bp[0].opcode[1] = 0;
- step_bp[1].addr = NULL;
- step_bp[1].opcode[0] = 0;
- step_bp[1].opcode[1] = 0;
- x = 0;
-
- pc = (u8 *) regs->pc;
- sp = (u8 *) (regs + 1);
- if (gdbstub_read_byte(pc, &cur) < 0)
- return -EFAULT;
-
- gdbstub_bkpt("Single Step from %p { %02x }\n", pc, cur);
-
- gdbstub_flush_caches = 1;
-
- size = gdbstub_insn_sizes[cur];
- if (size > 0) {
- if (!__gdbstub_mark_bp(pc + size, 0))
- goto fault;
- } else {
- switch (cur) {
- /* Bxx (d8,PC) */
- case 0xc0 ... 0xca:
- if (gdbstub_read_byte(pc + 1, (u8 *) &x) < 0)
- goto fault;
- if (!__gdbstub_mark_bp(pc + 2, 0))
- goto fault;
- if ((x < 0 || x > 2) &&
- !__gdbstub_mark_bp(pc + (s8) x, 1))
- goto fault;
- break;
-
- /* LXX (d8,PC) */
- case 0xd0 ... 0xda:
- if (!__gdbstub_mark_bp(pc + 1, 0))
- goto fault;
- if (regs->pc != regs->lar &&
- !__gdbstub_mark_bp((u8 *) regs->lar, 1))
- goto fault;
- break;
-
- /* SETLB - loads the next for bytes into the LIR
- * register */
- case 0xdb:
- if (!__gdbstub_mark_bp(pc + 1, 0))
- goto fault;
- break;
-
- /* JMP (d16,PC) or CALL (d16,PC) */
- case 0xcc:
- case 0xcd:
- if (gdbstub_read_byte(pc + 1, ((u8 *) &x) + 0) < 0 ||
- gdbstub_read_byte(pc + 2, ((u8 *) &x) + 1) < 0)
- goto fault;
- if (!__gdbstub_mark_bp(pc + (s16) x, 0))
- goto fault;
- break;
-
- /* JMP (d32,PC) or CALL (d32,PC) */
- case 0xdc:
- case 0xdd:
- if (gdbstub_read_byte(pc + 1, ((u8 *) &x) + 0) < 0 ||
- gdbstub_read_byte(pc + 2, ((u8 *) &x) + 1) < 0 ||
- gdbstub_read_byte(pc + 3, ((u8 *) &x) + 2) < 0 ||
- gdbstub_read_byte(pc + 4, ((u8 *) &x) + 3) < 0)
- goto fault;
- if (!__gdbstub_mark_bp(pc + (s32) x, 0))
- goto fault;
- break;
-
- /* RETF */
- case 0xde:
- if (!__gdbstub_mark_bp((u8 *) regs->mdr, 0))
- goto fault;
- break;
-
- /* RET */
- case 0xdf:
- if (gdbstub_read_byte(pc + 2, (u8 *) &x) < 0)
- goto fault;
- sp += (s8)x;
- if (gdbstub_read_byte(sp + 0, ((u8 *) &x) + 0) < 0 ||
- gdbstub_read_byte(sp + 1, ((u8 *) &x) + 1) < 0 ||
- gdbstub_read_byte(sp + 2, ((u8 *) &x) + 2) < 0 ||
- gdbstub_read_byte(sp + 3, ((u8 *) &x) + 3) < 0)
- goto fault;
- if (!__gdbstub_mark_bp((u8 *) x, 0))
- goto fault;
- break;
-
- case 0xf0:
- if (gdbstub_read_byte(pc + 1, &cur) < 0)
- goto fault;
-
- if (cur >= 0xf0 && cur <= 0xf7) {
- /* JMP (An) / CALLS (An) */
- switch (cur & 3) {
- case 0: x = regs->a0; break;
- case 1: x = regs->a1; break;
- case 2: x = regs->a2; break;
- case 3: x = regs->a3; break;
- }
- if (!__gdbstub_mark_bp((u8 *) x, 0))
- goto fault;
- } else if (cur == 0xfc) {
- /* RETS */
- if (gdbstub_read_byte(
- sp + 0, ((u8 *) &x) + 0) < 0 ||
- gdbstub_read_byte(
- sp + 1, ((u8 *) &x) + 1) < 0 ||
- gdbstub_read_byte(
- sp + 2, ((u8 *) &x) + 2) < 0 ||
- gdbstub_read_byte(
- sp + 3, ((u8 *) &x) + 3) < 0)
- goto fault;
- if (!__gdbstub_mark_bp((u8 *) x, 0))
- goto fault;
- } else if (cur == 0xfd) {
- /* RTI */
- if (gdbstub_read_byte(
- sp + 4, ((u8 *) &x) + 0) < 0 ||
- gdbstub_read_byte(
- sp + 5, ((u8 *) &x) + 1) < 0 ||
- gdbstub_read_byte(
- sp + 6, ((u8 *) &x) + 2) < 0 ||
- gdbstub_read_byte(
- sp + 7, ((u8 *) &x) + 3) < 0)
- goto fault;
- if (!__gdbstub_mark_bp((u8 *) x, 0))
- goto fault;
- } else {
- if (!__gdbstub_mark_bp(pc + 2, 0))
- goto fault;
- }
-
- break;
-
- /* potential 3-byte conditional branches */
- case 0xf8:
- if (gdbstub_read_byte(pc + 1, &cur) < 0)
- goto fault;
- if (!__gdbstub_mark_bp(pc + 3, 0))
- goto fault;
-
- if (cur >= 0xe8 && cur <= 0xeb) {
- if (gdbstub_read_byte(
- pc + 2, ((u8 *) &x) + 0) < 0)
- goto fault;
- if ((x < 0 || x > 3) &&
- !__gdbstub_mark_bp(pc + (s8) x, 1))
- goto fault;
- }
- break;
-
- case 0xfa:
- if (gdbstub_read_byte(pc + 1, &cur) < 0)
- goto fault;
-
- if (cur == 0xff) {
- /* CALLS (d16,PC) */
- if (gdbstub_read_byte(
- pc + 2, ((u8 *) &x) + 0) < 0 ||
- gdbstub_read_byte(
- pc + 3, ((u8 *) &x) + 1) < 0)
- goto fault;
- if (!__gdbstub_mark_bp(pc + (s16) x, 0))
- goto fault;
- } else {
- if (!__gdbstub_mark_bp(pc + 4, 0))
- goto fault;
- }
- break;
-
- case 0xfc:
- if (gdbstub_read_byte(pc + 1, &cur) < 0)
- goto fault;
- if (cur == 0xff) {
- /* CALLS (d32,PC) */
- if (gdbstub_read_byte(
- pc + 2, ((u8 *) &x) + 0) < 0 ||
- gdbstub_read_byte(
- pc + 3, ((u8 *) &x) + 1) < 0 ||
- gdbstub_read_byte(
- pc + 4, ((u8 *) &x) + 2) < 0 ||
- gdbstub_read_byte(
- pc + 5, ((u8 *) &x) + 3) < 0)
- goto fault;
- if (!__gdbstub_mark_bp(
- pc + (s32) x, 0))
- goto fault;
- } else {
- if (!__gdbstub_mark_bp(
- pc + 6, 0))
- goto fault;
- }
- break;
-
- }
- }
-
- gdbstub_bkpt("Step: %02x at %p; %02x at %p\n",
- step_bp[0].opcode[0], step_bp[0].addr,
- step_bp[1].opcode[0], step_bp[1].addr);
-
- if (step_bp[0].addr) {
-#ifdef GDBSTUB_USE_F7F7_AS_BREAKPOINT
- if (gdbstub_write_byte(0xF7, step_bp[0].addr + 0) < 0 ||
- gdbstub_write_byte(0xF7, step_bp[0].addr + 1) < 0)
- goto fault;
-#else
- if (gdbstub_write_byte(0xFF, step_bp[0].addr + 0) < 0)
- goto fault;
-#endif
- }
-
- if (step_bp[1].addr) {
-#ifdef GDBSTUB_USE_F7F7_AS_BREAKPOINT
- if (gdbstub_write_byte(0xF7, step_bp[1].addr + 0) < 0 ||
- gdbstub_write_byte(0xF7, step_bp[1].addr + 1) < 0)
- goto fault;
-#else
- if (gdbstub_write_byte(0xFF, step_bp[1].addr + 0) < 0)
- goto fault;
-#endif
- }
-
- return 0;
-
- fault:
- /* uh-oh - silly address alert, try and restore things */
- __gdbstub_restore_bp();
- return -EFAULT;
-}
-#endif /* CONFIG_GDBSTUB_ALLOW_SINGLE_STEP */
-
-#ifdef CONFIG_GDBSTUB_CONSOLE
-
-void gdbstub_console_write(struct console *con, const char *p, unsigned n)
-{
- static const char gdbstub_cr[] = { 0x0d };
- char outbuf[26];
- int qty;
- u8 busy;
-
- busy = gdbstub_busy;
- gdbstub_busy = 1;
-
- outbuf[0] = 'O';
-
- while (n > 0) {
- qty = 1;
-
- while (n > 0 && qty < 20) {
- mem2hex(p, outbuf + qty, 2, 0);
- qty += 2;
- if (*p == 0x0a) {
- mem2hex(gdbstub_cr, outbuf + qty, 2, 0);
- qty += 2;
- }
- p++;
- n--;
- }
-
- outbuf[qty] = 0;
- putpacket(outbuf);
- }
-
- gdbstub_busy = busy;
-}
-
-static kdev_t gdbstub_console_dev(struct console *con)
-{
- return MKDEV(1, 3); /* /dev/null */
-}
-
-static struct console gdbstub_console = {
- .name = "gdb",
- .write = gdbstub_console_write,
- .device = gdbstub_console_dev,
- .flags = CON_PRINTBUFFER,
- .index = -1,
-};
-
-#endif
-
-/*
- * Convert the memory pointed to by mem into hex, placing result in buf.
- * - if successful, return a pointer to the last char put in buf (NUL)
- * - in case of mem fault, return NULL
- * may_fault is non-zero if we are reading from arbitrary memory, but is
- * currently not used.
- */
-static
-unsigned char *mem2hex(const void *_mem, char *buf, int count, int may_fault)
-{
- const u8 *mem = _mem;
- u8 ch[4];
-
- if ((u32) mem & 1 && count >= 1) {
- if (gdbstub_read_byte(mem, ch) != 0)
- return 0;
- buf = hex_byte_pack(buf, ch[0]);
- mem++;
- count--;
- }
-
- if ((u32) mem & 3 && count >= 2) {
- if (gdbstub_read_word(mem, ch) != 0)
- return 0;
- buf = hex_byte_pack(buf, ch[0]);
- buf = hex_byte_pack(buf, ch[1]);
- mem += 2;
- count -= 2;
- }
-
- while (count >= 4) {
- if (gdbstub_read_dword(mem, ch) != 0)
- return 0;
- buf = hex_byte_pack(buf, ch[0]);
- buf = hex_byte_pack(buf, ch[1]);
- buf = hex_byte_pack(buf, ch[2]);
- buf = hex_byte_pack(buf, ch[3]);
- mem += 4;
- count -= 4;
- }
-
- if (count >= 2) {
- if (gdbstub_read_word(mem, ch) != 0)
- return 0;
- buf = hex_byte_pack(buf, ch[0]);
- buf = hex_byte_pack(buf, ch[1]);
- mem += 2;
- count -= 2;
- }
-
- if (count >= 1) {
- if (gdbstub_read_byte(mem, ch) != 0)
- return 0;
- buf = hex_byte_pack(buf, ch[0]);
- }
-
- *buf = 0;
- return buf;
-}
-
-/*
- * convert the hex array pointed to by buf into binary to be placed in mem
- * return a pointer to the character AFTER the last byte written
- * may_fault is non-zero if we are reading from arbitrary memory, but is
- * currently not used.
- */
-static
-const char *hex2mem(const char *buf, void *_mem, int count, int may_fault)
-{
- u8 *mem = _mem;
- union {
- u32 val;
- u8 b[4];
- } ch;
-
- if ((u32) mem & 1 && count >= 1) {
- ch.b[0] = hex(*buf++) << 4;
- ch.b[0] |= hex(*buf++);
- if (gdbstub_write_byte(ch.val, mem) != 0)
- return 0;
- mem++;
- count--;
- }
-
- if ((u32) mem & 3 && count >= 2) {
- ch.b[0] = hex(*buf++) << 4;
- ch.b[0] |= hex(*buf++);
- ch.b[1] = hex(*buf++) << 4;
- ch.b[1] |= hex(*buf++);
- if (gdbstub_write_word(ch.val, mem) != 0)
- return 0;
- mem += 2;
- count -= 2;
- }
-
- while (count >= 4) {
- ch.b[0] = hex(*buf++) << 4;
- ch.b[0] |= hex(*buf++);
- ch.b[1] = hex(*buf++) << 4;
- ch.b[1] |= hex(*buf++);
- ch.b[2] = hex(*buf++) << 4;
- ch.b[2] |= hex(*buf++);
- ch.b[3] = hex(*buf++) << 4;
- ch.b[3] |= hex(*buf++);
- if (gdbstub_write_dword(ch.val, mem) != 0)
- return 0;
- mem += 4;
- count -= 4;
- }
-
- if (count >= 2) {
- ch.b[0] = hex(*buf++) << 4;
- ch.b[0] |= hex(*buf++);
- ch.b[1] = hex(*buf++) << 4;
- ch.b[1] |= hex(*buf++);
- if (gdbstub_write_word(ch.val, mem) != 0)
- return 0;
- mem += 2;
- count -= 2;
- }
-
- if (count >= 1) {
- ch.b[0] = hex(*buf++) << 4;
- ch.b[0] |= hex(*buf++);
- if (gdbstub_write_byte(ch.val, mem) != 0)
- return 0;
- }
-
- return buf;
-}
-
-/*
- * This table contains the mapping between MN10300 exception codes, and
- * signals, which are primarily what GDB understands. It also indicates
- * which hardware traps we need to commandeer when initializing the stub.
- */
-static const struct excep_to_sig_map {
- enum exception_code excep; /* MN10300 exception code */
- unsigned char signo; /* Signal that we map this into */
-} excep_to_sig_map[] = {
- { EXCEP_ITLBMISS, SIGSEGV },
- { EXCEP_DTLBMISS, SIGSEGV },
- { EXCEP_TRAP, SIGTRAP },
- { EXCEP_ISTEP, SIGTRAP },
- { EXCEP_IBREAK, SIGTRAP },
- { EXCEP_OBREAK, SIGTRAP },
- { EXCEP_UNIMPINS, SIGILL },
- { EXCEP_UNIMPEXINS, SIGILL },
- { EXCEP_MEMERR, SIGSEGV },
- { EXCEP_MISALIGN, SIGSEGV },
- { EXCEP_BUSERROR, SIGBUS },
- { EXCEP_ILLINSACC, SIGSEGV },
- { EXCEP_ILLDATACC, SIGSEGV },
- { EXCEP_IOINSACC, SIGSEGV },
- { EXCEP_PRIVINSACC, SIGSEGV },
- { EXCEP_PRIVDATACC, SIGSEGV },
- { EXCEP_FPU_DISABLED, SIGFPE },
- { EXCEP_FPU_UNIMPINS, SIGFPE },
- { EXCEP_FPU_OPERATION, SIGFPE },
- { EXCEP_WDT, SIGALRM },
- { EXCEP_NMI, SIGQUIT },
- { EXCEP_IRQ_LEVEL0, SIGINT },
- { EXCEP_IRQ_LEVEL1, SIGINT },
- { EXCEP_IRQ_LEVEL2, SIGINT },
- { EXCEP_IRQ_LEVEL3, SIGINT },
- { EXCEP_IRQ_LEVEL4, SIGINT },
- { EXCEP_IRQ_LEVEL5, SIGINT },
- { EXCEP_IRQ_LEVEL6, SIGINT },
- { 0, 0}
-};
-
-/*
- * convert the MN10300 exception code into a UNIX signal number
- */
-static int computeSignal(enum exception_code excep)
-{
- const struct excep_to_sig_map *map;
-
- for (map = excep_to_sig_map; map->signo; map++)
- if (map->excep == excep)
- return map->signo;
-
- return SIGHUP; /* default for things we don't know about */
-}
-
-static u32 gdbstub_fpcr, gdbstub_fpufs_array[32];
-
-/*
- *
- */
-static void gdbstub_store_fpu(void)
-{
-#ifdef CONFIG_FPU
-
- asm volatile(
- "or %2,epsw\n"
-#ifdef CONFIG_MN10300_PROC_MN103E010
- "nop\n"
- "nop\n"
-#endif
- "mov %1, a1\n"
- "fmov fs0, (a1+)\n"
- "fmov fs1, (a1+)\n"
- "fmov fs2, (a1+)\n"
- "fmov fs3, (a1+)\n"
- "fmov fs4, (a1+)\n"
- "fmov fs5, (a1+)\n"
- "fmov fs6, (a1+)\n"
- "fmov fs7, (a1+)\n"
- "fmov fs8, (a1+)\n"
- "fmov fs9, (a1+)\n"
- "fmov fs10, (a1+)\n"
- "fmov fs11, (a1+)\n"
- "fmov fs12, (a1+)\n"
- "fmov fs13, (a1+)\n"
- "fmov fs14, (a1+)\n"
- "fmov fs15, (a1+)\n"
- "fmov fs16, (a1+)\n"
- "fmov fs17, (a1+)\n"
- "fmov fs18, (a1+)\n"
- "fmov fs19, (a1+)\n"
- "fmov fs20, (a1+)\n"
- "fmov fs21, (a1+)\n"
- "fmov fs22, (a1+)\n"
- "fmov fs23, (a1+)\n"
- "fmov fs24, (a1+)\n"
- "fmov fs25, (a1+)\n"
- "fmov fs26, (a1+)\n"
- "fmov fs27, (a1+)\n"
- "fmov fs28, (a1+)\n"
- "fmov fs29, (a1+)\n"
- "fmov fs30, (a1+)\n"
- "fmov fs31, (a1+)\n"
- "fmov fpcr, %0\n"
- : "=d"(gdbstub_fpcr)
- : "g" (&gdbstub_fpufs_array), "i"(EPSW_FE)
- : "a1"
- );
-#endif
-}
-
-/*
- *
- */
-static void gdbstub_load_fpu(void)
-{
-#ifdef CONFIG_FPU
-
- asm volatile(
- "or %1,epsw\n"
-#ifdef CONFIG_MN10300_PROC_MN103E010
- "nop\n"
- "nop\n"
-#endif
- "mov %0, a1\n"
- "fmov (a1+), fs0\n"
- "fmov (a1+), fs1\n"
- "fmov (a1+), fs2\n"
- "fmov (a1+), fs3\n"
- "fmov (a1+), fs4\n"
- "fmov (a1+), fs5\n"
- "fmov (a1+), fs6\n"
- "fmov (a1+), fs7\n"
- "fmov (a1+), fs8\n"
- "fmov (a1+), fs9\n"
- "fmov (a1+), fs10\n"
- "fmov (a1+), fs11\n"
- "fmov (a1+), fs12\n"
- "fmov (a1+), fs13\n"
- "fmov (a1+), fs14\n"
- "fmov (a1+), fs15\n"
- "fmov (a1+), fs16\n"
- "fmov (a1+), fs17\n"
- "fmov (a1+), fs18\n"
- "fmov (a1+), fs19\n"
- "fmov (a1+), fs20\n"
- "fmov (a1+), fs21\n"
- "fmov (a1+), fs22\n"
- "fmov (a1+), fs23\n"
- "fmov (a1+), fs24\n"
- "fmov (a1+), fs25\n"
- "fmov (a1+), fs26\n"
- "fmov (a1+), fs27\n"
- "fmov (a1+), fs28\n"
- "fmov (a1+), fs29\n"
- "fmov (a1+), fs30\n"
- "fmov (a1+), fs31\n"
- "fmov %2, fpcr\n"
- :
- : "g" (&gdbstub_fpufs_array), "i"(EPSW_FE), "d"(gdbstub_fpcr)
- : "a1"
- );
-#endif
-}
-
-/*
- * set a software breakpoint
- */
-int gdbstub_set_breakpoint(u8 *addr, int len)
-{
- int bkpt, loop, xloop;
-
-#ifdef GDBSTUB_USE_F7F7_AS_BREAKPOINT
- len = (len + 1) & ~1;
-#endif
-
- gdbstub_bkpt("setbkpt(%p,%d)\n", addr, len);
-
- for (bkpt = 255; bkpt >= 0; bkpt--)
- if (!gdbstub_bkpts[bkpt].addr)
- break;
- if (bkpt < 0)
- return -ENOSPC;
-
- for (loop = 0; loop < len; loop++)
- if (gdbstub_read_byte(&addr[loop],
- &gdbstub_bkpts[bkpt].origbytes[loop]
- ) < 0)
- return -EFAULT;
-
- gdbstub_flush_caches = 1;
-
-#ifdef GDBSTUB_USE_F7F7_AS_BREAKPOINT
- for (loop = 0; loop < len; loop++)
- if (gdbstub_write_byte(0xF7, &addr[loop]) < 0)
- goto restore;
-#else
- for (loop = 0; loop < len; loop++)
- if (gdbstub_write_byte(0xFF, &addr[loop]) < 0)
- goto restore;
-#endif
-
- gdbstub_bkpts[bkpt].addr = addr;
- gdbstub_bkpts[bkpt].len = len;
-
- gdbstub_bkpt("Set BKPT[%02x]: %p-%p {%02x%02x%02x%02x%02x%02x%02x}\n",
- bkpt,
- gdbstub_bkpts[bkpt].addr,
- gdbstub_bkpts[bkpt].addr + gdbstub_bkpts[bkpt].len - 1,
- gdbstub_bkpts[bkpt].origbytes[0],
- gdbstub_bkpts[bkpt].origbytes[1],
- gdbstub_bkpts[bkpt].origbytes[2],
- gdbstub_bkpts[bkpt].origbytes[3],
- gdbstub_bkpts[bkpt].origbytes[4],
- gdbstub_bkpts[bkpt].origbytes[5],
- gdbstub_bkpts[bkpt].origbytes[6]
- );
-
- return 0;
-
-restore:
- for (xloop = 0; xloop < loop; xloop++)
- gdbstub_write_byte(gdbstub_bkpts[bkpt].origbytes[xloop],
- addr + xloop);
- return -EFAULT;
-}
-
-/*
- * clear a software breakpoint
- */
-int gdbstub_clear_breakpoint(u8 *addr, int len)
-{
- int bkpt, loop;
-
-#ifdef GDBSTUB_USE_F7F7_AS_BREAKPOINT
- len = (len + 1) & ~1;
-#endif
-
- gdbstub_bkpt("clearbkpt(%p,%d)\n", addr, len);
-
- for (bkpt = 255; bkpt >= 0; bkpt--)
- if (gdbstub_bkpts[bkpt].addr == addr &&
- gdbstub_bkpts[bkpt].len == len)
- break;
- if (bkpt < 0)
- return -ENOENT;
-
- gdbstub_bkpts[bkpt].addr = NULL;
-
- gdbstub_flush_caches = 1;
-
- for (loop = 0; loop < len; loop++)
- if (gdbstub_write_byte(gdbstub_bkpts[bkpt].origbytes[loop],
- addr + loop) < 0)
- return -EFAULT;
-
- return 0;
-}
-
-/*
- * This function does all command processing for interfacing to gdb
- * - returns 0 if the exception should be skipped, -ERROR otherwise.
- */
-static int gdbstub(struct pt_regs *regs, enum exception_code excep)
-{
- unsigned long *stack;
- unsigned long epsw, mdr;
- uint32_t zero, ssp;
- uint8_t broke;
- char *ptr;
- int sigval;
- int addr;
- int length;
- int loop;
-
- if (excep == EXCEP_FPU_DISABLED)
- return -ENOTSUPP;
-
- gdbstub_flush_caches = 0;
-
- mn10300_set_gdbleds(1);
-
- asm volatile("mov mdr,%0" : "=d"(mdr));
- local_save_flags(epsw);
- arch_local_change_intr_mask_level(
- NUM2EPSW_IM(CONFIG_DEBUGGER_IRQ_LEVEL + 1));
-
- gdbstub_store_fpu();
-
-#ifdef CONFIG_GDBSTUB_IMMEDIATE
- /* skip the initial pause loop */
- if (regs->pc == (unsigned long) __gdbstub_pause)
- regs->pc = (unsigned long) start_kernel;
-#endif
-
- /* if we were single stepping, restore the opcodes hoisted for the
- * breakpoint[s] */
- broke = 0;
-#ifdef CONFIG_GDBSTUB_ALLOW_SINGLE_STEP
- if ((step_bp[0].addr && step_bp[0].addr == (u8 *) regs->pc) ||
- (step_bp[1].addr && step_bp[1].addr == (u8 *) regs->pc))
- broke = 1;
-
- __gdbstub_restore_bp();
-#endif
-
- if (gdbstub_rx_unget) {
- sigval = SIGINT;
- if (gdbstub_rx_unget != 3)
- goto packet_waiting;
- gdbstub_rx_unget = 0;
- }
-
- stack = (unsigned long *) regs->sp;
- sigval = broke ? SIGTRAP : computeSignal(excep);
-
- /* send information about a BUG() */
- if (!user_mode(regs) && excep == EXCEP_SYSCALL15) {
- const struct bug_entry *bug;
-
- bug = find_bug(regs->pc);
- if (bug)
- goto found_bug;
- length = snprintf(trans_buffer, sizeof(trans_buffer),
- "BUG() at address %lx\n", regs->pc);
- goto send_bug_pkt;
-
- found_bug:
- length = snprintf(trans_buffer, sizeof(trans_buffer),
- "BUG() at address %lx (%s:%d)\n",
- regs->pc, bug->file, bug->line);
-
- send_bug_pkt:
- ptr = output_buffer;
- *ptr++ = 'O';
- ptr = mem2hex(trans_buffer, ptr, length, 0);
- *ptr = 0;
- putpacket(output_buffer);
-
- regs->pc -= 2;
- sigval = SIGABRT;
- } else if (regs->pc == (unsigned long) __gdbstub_bug_trap) {
- regs->pc = regs->mdr;
- sigval = SIGABRT;
- }
-
- /*
- * send a message to the debugger's user saying what happened if it may
- * not be clear cut (we can't map exceptions onto signals properly)
- */
- if (sigval != SIGINT && sigval != SIGTRAP && sigval != SIGILL) {
- static const char title[] = "Excep ", tbcberr[] = "BCBERR ";
- static const char crlf[] = "\r\n";
- char hx;
- u32 bcberr = BCBERR;
-
- ptr = output_buffer;
- *ptr++ = 'O';
- ptr = mem2hex(title, ptr, sizeof(title) - 1, 0);
-
- hx = hex_asc_hi(excep >> 8);
- ptr = hex_byte_pack(ptr, hx);
- hx = hex_asc_lo(excep >> 8);
- ptr = hex_byte_pack(ptr, hx);
- hx = hex_asc_hi(excep);
- ptr = hex_byte_pack(ptr, hx);
- hx = hex_asc_lo(excep);
- ptr = hex_byte_pack(ptr, hx);
-
- ptr = mem2hex(crlf, ptr, sizeof(crlf) - 1, 0);
- *ptr = 0;
- putpacket(output_buffer); /* send it off... */
-
- /* BCBERR */
- ptr = output_buffer;
- *ptr++ = 'O';
- ptr = mem2hex(tbcberr, ptr, sizeof(tbcberr) - 1, 0);
-
- hx = hex_asc_hi(bcberr >> 24);
- ptr = hex_byte_pack(ptr, hx);
- hx = hex_asc_lo(bcberr >> 24);
- ptr = hex_byte_pack(ptr, hx);
- hx = hex_asc_hi(bcberr >> 16);
- ptr = hex_byte_pack(ptr, hx);
- hx = hex_asc_lo(bcberr >> 16);
- ptr = hex_byte_pack(ptr, hx);
- hx = hex_asc_hi(bcberr >> 8);
- ptr = hex_byte_pack(ptr, hx);
- hx = hex_asc_lo(bcberr >> 8);
- ptr = hex_byte_pack(ptr, hx);
- hx = hex_asc_hi(bcberr);
- ptr = hex_byte_pack(ptr, hx);
- hx = hex_asc_lo(bcberr);
- ptr = hex_byte_pack(ptr, hx);
-
- ptr = mem2hex(crlf, ptr, sizeof(crlf) - 1, 0);
- *ptr = 0;
- putpacket(output_buffer); /* send it off... */
- }
-
- /*
- * tell the debugger that an exception has occurred
- */
- ptr = output_buffer;
-
- /*
- * Send trap type (converted to signal)
- */
- *ptr++ = 'T';
- ptr = hex_byte_pack(ptr, sigval);
-
- /*
- * Send Error PC
- */
- ptr = hex_byte_pack(ptr, GDB_REGID_PC);
- *ptr++ = ':';
- ptr = mem2hex(®s->pc, ptr, 4, 0);
- *ptr++ = ';';
-
- /*
- * Send frame pointer
- */
- ptr = hex_byte_pack(ptr, GDB_REGID_FP);
- *ptr++ = ':';
- ptr = mem2hex(®s->a3, ptr, 4, 0);
- *ptr++ = ';';
-
- /*
- * Send stack pointer
- */
- ssp = (unsigned long) (regs + 1);
- ptr = hex_byte_pack(ptr, GDB_REGID_SP);
- *ptr++ = ':';
- ptr = mem2hex(&ssp, ptr, 4, 0);
- *ptr++ = ';';
-
- *ptr++ = 0;
- putpacket(output_buffer); /* send it off... */
-
-packet_waiting:
- /*
- * Wait for input from remote GDB
- */
- while (1) {
- output_buffer[0] = 0;
- getpacket(input_buffer);
-
- switch (input_buffer[0]) {
- /* request repeat of last signal number */
- case '?':
- output_buffer[0] = 'S';
- output_buffer[1] = hex_asc_hi(sigval);
- output_buffer[2] = hex_asc_lo(sigval);
- output_buffer[3] = 0;
- break;
-
- case 'd':
- /* toggle debug flag */
- break;
-
- /*
- * Return the value of the CPU registers
- */
- case 'g':
- zero = 0;
- ssp = (u32) (regs + 1);
- ptr = output_buffer;
- ptr = mem2hex(®s->d0, ptr, 4, 0);
- ptr = mem2hex(®s->d1, ptr, 4, 0);
- ptr = mem2hex(®s->d2, ptr, 4, 0);
- ptr = mem2hex(®s->d3, ptr, 4, 0);
- ptr = mem2hex(®s->a0, ptr, 4, 0);
- ptr = mem2hex(®s->a1, ptr, 4, 0);
- ptr = mem2hex(®s->a2, ptr, 4, 0);
- ptr = mem2hex(®s->a3, ptr, 4, 0);
-
- ptr = mem2hex(&ssp, ptr, 4, 0); /* 8 */
- ptr = mem2hex(®s->pc, ptr, 4, 0);
- ptr = mem2hex(®s->mdr, ptr, 4, 0);
- ptr = mem2hex(®s->epsw, ptr, 4, 0);
- ptr = mem2hex(®s->lir, ptr, 4, 0);
- ptr = mem2hex(®s->lar, ptr, 4, 0);
- ptr = mem2hex(®s->mdrq, ptr, 4, 0);
-
- ptr = mem2hex(®s->e0, ptr, 4, 0); /* 15 */
- ptr = mem2hex(®s->e1, ptr, 4, 0);
- ptr = mem2hex(®s->e2, ptr, 4, 0);
- ptr = mem2hex(®s->e3, ptr, 4, 0);
- ptr = mem2hex(®s->e4, ptr, 4, 0);
- ptr = mem2hex(®s->e5, ptr, 4, 0);
- ptr = mem2hex(®s->e6, ptr, 4, 0);
- ptr = mem2hex(®s->e7, ptr, 4, 0);
-
- ptr = mem2hex(&ssp, ptr, 4, 0);
- ptr = mem2hex(®s, ptr, 4, 0);
- ptr = mem2hex(®s->sp, ptr, 4, 0);
- ptr = mem2hex(®s->mcrh, ptr, 4, 0); /* 26 */
- ptr = mem2hex(®s->mcrl, ptr, 4, 0);
- ptr = mem2hex(®s->mcvf, ptr, 4, 0);
-
- ptr = mem2hex(&gdbstub_fpcr, ptr, 4, 0); /* 29 - FPCR */
- ptr = mem2hex(&zero, ptr, 4, 0);
- ptr = mem2hex(&zero, ptr, 4, 0);
- for (loop = 0; loop < 32; loop++)
- ptr = mem2hex(&gdbstub_fpufs_array[loop],
- ptr, 4, 0); /* 32 - FS0-31 */
-
- break;
-
- /*
- * set the value of the CPU registers - return OK
- */
- case 'G':
- {
- const char *ptr;
-
- ptr = &input_buffer[1];
- ptr = hex2mem(ptr, ®s->d0, 4, 0);
- ptr = hex2mem(ptr, ®s->d1, 4, 0);
- ptr = hex2mem(ptr, ®s->d2, 4, 0);
- ptr = hex2mem(ptr, ®s->d3, 4, 0);
- ptr = hex2mem(ptr, ®s->a0, 4, 0);
- ptr = hex2mem(ptr, ®s->a1, 4, 0);
- ptr = hex2mem(ptr, ®s->a2, 4, 0);
- ptr = hex2mem(ptr, ®s->a3, 4, 0);
-
- ptr = hex2mem(ptr, &ssp, 4, 0); /* 8 */
- ptr = hex2mem(ptr, ®s->pc, 4, 0);
- ptr = hex2mem(ptr, ®s->mdr, 4, 0);
- ptr = hex2mem(ptr, ®s->epsw, 4, 0);
- ptr = hex2mem(ptr, ®s->lir, 4, 0);
- ptr = hex2mem(ptr, ®s->lar, 4, 0);
- ptr = hex2mem(ptr, ®s->mdrq, 4, 0);
-
- ptr = hex2mem(ptr, ®s->e0, 4, 0); /* 15 */
- ptr = hex2mem(ptr, ®s->e1, 4, 0);
- ptr = hex2mem(ptr, ®s->e2, 4, 0);
- ptr = hex2mem(ptr, ®s->e3, 4, 0);
- ptr = hex2mem(ptr, ®s->e4, 4, 0);
- ptr = hex2mem(ptr, ®s->e5, 4, 0);
- ptr = hex2mem(ptr, ®s->e6, 4, 0);
- ptr = hex2mem(ptr, ®s->e7, 4, 0);
-
- ptr = hex2mem(ptr, &ssp, 4, 0);
- ptr = hex2mem(ptr, &zero, 4, 0);
- ptr = hex2mem(ptr, ®s->sp, 4, 0);
- ptr = hex2mem(ptr, ®s->mcrh, 4, 0); /* 26 */
- ptr = hex2mem(ptr, ®s->mcrl, 4, 0);
- ptr = hex2mem(ptr, ®s->mcvf, 4, 0);
-
- ptr = hex2mem(ptr, &zero, 4, 0); /* 29 - FPCR */
- ptr = hex2mem(ptr, &zero, 4, 0);
- ptr = hex2mem(ptr, &zero, 4, 0);
- for (loop = 0; loop < 32; loop++) /* 32 - FS0-31 */
- ptr = hex2mem(ptr, &zero, 4, 0);
-
-#if 0
- /*
- * See if the stack pointer has moved. If so, then copy
- * the saved locals and ins to the new location.
- */
- unsigned long *newsp = (unsigned long *) registers[SP];
- if (sp != newsp)
- sp = memcpy(newsp, sp, 16 * 4);
-#endif
-
- gdbstub_strcpy(output_buffer, "OK");
- }
- break;
-
- /*
- * mAA..AA,LLLL Read LLLL bytes at address AA..AA
- */
- case 'm':
- ptr = &input_buffer[1];
-
- if (hexToInt(&ptr, &addr) &&
- *ptr++ == ',' &&
- hexToInt(&ptr, &length)
- ) {
- if (mem2hex((char *) addr, output_buffer,
- length, 1))
- break;
- gdbstub_strcpy(output_buffer, "E03");
- } else {
- gdbstub_strcpy(output_buffer, "E01");
- }
- break;
-
- /*
- * MAA..AA,LLLL: Write LLLL bytes at address AA.AA
- * return OK
- */
- case 'M':
- ptr = &input_buffer[1];
-
- if (hexToInt(&ptr, &addr) &&
- *ptr++ == ',' &&
- hexToInt(&ptr, &length) &&
- *ptr++ == ':'
- ) {
- if (hex2mem(ptr, (char *) addr, length, 1))
- gdbstub_strcpy(output_buffer, "OK");
- else
- gdbstub_strcpy(output_buffer, "E03");
-
- gdbstub_flush_caches = 1;
- } else {
- gdbstub_strcpy(output_buffer, "E02");
- }
- break;
-
- /*
- * cAA..AA Continue at address AA..AA(optional)
- */
- case 'c':
- /* try to read optional parameter, pc unchanged if no
- * parm */
-
- ptr = &input_buffer[1];
- if (hexToInt(&ptr, &addr))
- regs->pc = addr;
- goto done;
-
- /*
- * kill the program
- */
- case 'k' :
- goto done; /* just continue */
-
- /*
- * Reset the whole machine (FIXME: system dependent)
- */
- case 'r':
- break;
-
- /*
- * Step to next instruction
- */
- case 's':
- /* Using the T flag doesn't seem to perform single
- * stepping (it seems to wind up being caught by the
- * JTAG unit), so we have to use breakpoints and
- * continue instead.
- */
-#ifdef CONFIG_GDBSTUB_ALLOW_SINGLE_STEP
- if (gdbstub_single_step(regs) < 0)
- /* ignore any fault error for now */
- gdbstub_printk("unable to set single-step"
- " bp\n");
- goto done;
-#else
- gdbstub_strcpy(output_buffer, "E01");
- break;
-#endif
-
- /*
- * Set baud rate (bBB)
- */
- case 'b':
- do {
- int baudrate;
-
- ptr = &input_buffer[1];
- if (!hexToInt(&ptr, &baudrate)) {
- gdbstub_strcpy(output_buffer, "B01");
- break;
- }
-
- if (baudrate) {
- /* ACK before changing speed */
- putpacket("OK");
- gdbstub_io_set_baud(baudrate);
- }
- } while (0);
- break;
-
- /*
- * Set breakpoint
- */
- case 'Z':
- ptr = &input_buffer[1];
-
- if (!hexToInt(&ptr, &loop) || *ptr++ != ',' ||
- !hexToInt(&ptr, &addr) || *ptr++ != ',' ||
- !hexToInt(&ptr, &length)
- ) {
- gdbstub_strcpy(output_buffer, "E01");
- break;
- }
-
- /* only support software breakpoints */
- gdbstub_strcpy(output_buffer, "E03");
- if (loop != 0 ||
- length < 1 ||
- length > 7 ||
- (unsigned long) addr < 4096)
- break;
-
- if (gdbstub_set_breakpoint((u8 *) addr, length) < 0)
- break;
-
- gdbstub_strcpy(output_buffer, "OK");
- break;
-
- /*
- * Clear breakpoint
- */
- case 'z':
- ptr = &input_buffer[1];
-
- if (!hexToInt(&ptr, &loop) || *ptr++ != ',' ||
- !hexToInt(&ptr, &addr) || *ptr++ != ',' ||
- !hexToInt(&ptr, &length)
- ) {
- gdbstub_strcpy(output_buffer, "E01");
- break;
- }
-
- /* only support software breakpoints */
- gdbstub_strcpy(output_buffer, "E03");
- if (loop != 0 ||
- length < 1 ||
- length > 7 ||
- (unsigned long) addr < 4096)
- break;
-
- if (gdbstub_clear_breakpoint((u8 *) addr, length) < 0)
- break;
-
- gdbstub_strcpy(output_buffer, "OK");
- break;
-
- default:
- gdbstub_proto("### GDB Unsupported Cmd '%s'\n",
- input_buffer);
- break;
- }
-
- /* reply to the request */
- putpacket(output_buffer);
- }
-
-done:
- /*
- * Need to flush the instruction cache here, as we may
- * have deposited a breakpoint, and the icache probably
- * has no way of knowing that a data ref to some location
- * may have changed something that is in the instruction
- * cache.
- * NB: We flush both caches, just to be sure...
- */
- if (gdbstub_flush_caches)
- debugger_local_cache_flushinv();
-
- gdbstub_load_fpu();
- mn10300_set_gdbleds(0);
- if (excep == EXCEP_NMI)
- NMICR = NMICR_NMIF;
-
- touch_softlockup_watchdog();
-
- local_irq_restore(epsw);
- return 0;
-}
-
-/*
- * Determine if we hit a debugger special breakpoint that needs skipping over
- * automatically.
- */
-int at_debugger_breakpoint(struct pt_regs *regs)
-{
- return 0;
-}
-
-/*
- * handle event interception
- */
-asmlinkage int debugger_intercept(enum exception_code excep,
- int signo, int si_code, struct pt_regs *regs)
-{
- static u8 notfirst = 1;
- int ret;
-
- if (gdbstub_busy)
- gdbstub_printk("--> gdbstub reentered itself\n");
- gdbstub_busy = 1;
-
- if (notfirst) {
- unsigned long mdr;
- asm("mov mdr,%0" : "=d"(mdr));
-
- gdbstub_entry(
- "--> debugger_intercept(%p,%04x) [MDR=%lx PC=%lx]\n",
- regs, excep, mdr, regs->pc);
-
- gdbstub_entry(
- "PC: %08lx EPSW: %08lx SSP: %08lx mode: %s\n",
- regs->pc, regs->epsw, (unsigned long) &ret,
- user_mode(regs) ? "User" : "Super");
- gdbstub_entry(
- "d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n",
- regs->d0, regs->d1, regs->d2, regs->d3);
- gdbstub_entry(
- "a0: %08lx a1: %08lx a2: %08lx a3: %08lx\n",
- regs->a0, regs->a1, regs->a2, regs->a3);
- gdbstub_entry(
- "e0: %08lx e1: %08lx e2: %08lx e3: %08lx\n",
- regs->e0, regs->e1, regs->e2, regs->e3);
- gdbstub_entry(
- "e4: %08lx e5: %08lx e6: %08lx e7: %08lx\n",
- regs->e4, regs->e5, regs->e6, regs->e7);
- gdbstub_entry(
- "lar: %08lx lir: %08lx mdr: %08lx usp: %08lx\n",
- regs->lar, regs->lir, regs->mdr, regs->sp);
- gdbstub_entry(
- "cvf: %08lx crl: %08lx crh: %08lx drq: %08lx\n",
- regs->mcvf, regs->mcrl, regs->mcrh, regs->mdrq);
- gdbstub_entry(
- "threadinfo=%p task=%p)\n",
- current_thread_info(), current);
- } else {
- notfirst = 1;
- }
-
- ret = gdbstub(regs, excep);
-
- gdbstub_entry("<-- debugger_intercept()\n");
- gdbstub_busy = 0;
- return ret;
-}
-
-/*
- * handle the GDB stub itself causing an exception
- */
-asmlinkage void gdbstub_exception(struct pt_regs *regs,
- enum exception_code excep)
-{
- unsigned long mdr;
-
- asm("mov mdr,%0" : "=d"(mdr));
- gdbstub_entry("--> gdbstub exception({%p},%04x) [MDR=%lx]\n",
- regs, excep, mdr);
-
- while ((unsigned long) regs == 0xffffffff) {}
-
- /* handle guarded memory accesses where we know it might fault */
- if (regs->pc == (unsigned) gdbstub_read_byte_guard) {
- regs->pc = (unsigned) gdbstub_read_byte_cont;
- goto fault;
- }
-
- if (regs->pc == (unsigned) gdbstub_read_word_guard) {
- regs->pc = (unsigned) gdbstub_read_word_cont;
- goto fault;
- }
-
- if (regs->pc == (unsigned) gdbstub_read_dword_guard) {
- regs->pc = (unsigned) gdbstub_read_dword_cont;
- goto fault;
- }
-
- if (regs->pc == (unsigned) gdbstub_write_byte_guard) {
- regs->pc = (unsigned) gdbstub_write_byte_cont;
- goto fault;
- }
-
- if (regs->pc == (unsigned) gdbstub_write_word_guard) {
- regs->pc = (unsigned) gdbstub_write_word_cont;
- goto fault;
- }
-
- if (regs->pc == (unsigned) gdbstub_write_dword_guard) {
- regs->pc = (unsigned) gdbstub_write_dword_cont;
- goto fault;
- }
-
- gdbstub_printk("\n### GDB stub caused an exception ###\n");
-
- /* something went horribly wrong */
- console_verbose();
- show_registers(regs);
-
- panic("GDB Stub caused an unexpected exception - can't continue\n");
-
- /* we caught an attempt by the stub to access silly memory */
-fault:
- gdbstub_entry("<-- gdbstub exception() = EFAULT\n");
- regs->d0 = -EFAULT;
- return;
-}
-
-/*
- * send an exit message to GDB
- */
-void gdbstub_exit(int status)
-{
- unsigned char checksum;
- unsigned char ch;
- int count;
-
- gdbstub_busy = 1;
- output_buffer[0] = 'W';
- output_buffer[1] = hex_asc_hi(status);
- output_buffer[2] = hex_asc_lo(status);
- output_buffer[3] = 0;
-
- gdbstub_io_tx_char('$');
- checksum = 0;
- count = 0;
-
- while ((ch = output_buffer[count]) != 0) {
- gdbstub_io_tx_char(ch);
- checksum += ch;
- count += 1;
- }
-
- gdbstub_io_tx_char('#');
- gdbstub_io_tx_char(hex_asc_hi(checksum));
- gdbstub_io_tx_char(hex_asc_lo(checksum));
-
- /* make sure the output is flushed, or else RedBoot might clobber it */
- gdbstub_io_tx_flush();
-
- gdbstub_busy = 0;
-}
-
-/*
- * initialise the GDB stub
- */
-asmlinkage void __init gdbstub_init(void)
-{
-#ifdef CONFIG_GDBSTUB_IMMEDIATE
- unsigned char ch;
- int ret;
-#endif
-
- gdbstub_busy = 1;
-
- printk(KERN_INFO "%s", gdbstub_banner);
-
- gdbstub_io_init();
-
- gdbstub_entry("--> gdbstub_init\n");
-
- /* try to talk to GDB (or anyone insane enough to want to type GDB
- * protocol by hand) */
- gdbstub_io("### GDB Tx ACK\n");
- gdbstub_io_tx_char('+'); /* 'hello world' */
-
-#ifdef CONFIG_GDBSTUB_IMMEDIATE
- gdbstub_printk("GDB Stub waiting for packet\n");
-
- /* in case GDB is started before us, ACK any packets that are already
- * sitting there (presumably "$?#xx")
- */
- do { gdbstub_io_rx_char(&ch, 0); } while (ch != '$');
- do { gdbstub_io_rx_char(&ch, 0); } while (ch != '#');
- /* eat first csum byte */
- do { ret = gdbstub_io_rx_char(&ch, 0); } while (ret != 0);
- /* eat second csum byte */
- do { ret = gdbstub_io_rx_char(&ch, 0); } while (ret != 0);
-
- gdbstub_io("### GDB Tx NAK\n");
- gdbstub_io_tx_char('-'); /* NAK it */
-
-#else
- printk("GDB Stub ready\n");
-#endif
-
- gdbstub_busy = 0;
- gdbstub_entry("<-- gdbstub_init\n");
-}
-
-/*
- * register the console at a more appropriate time
- */
-#ifdef CONFIG_GDBSTUB_CONSOLE
-static int __init gdbstub_postinit(void)
-{
- printk(KERN_NOTICE "registering console\n");
- register_console(&gdbstub_console);
- return 0;
-}
-
-__initcall(gdbstub_postinit);
-#endif
-
-/*
- * handle character reception on GDB serial port
- * - jump into the GDB stub if BREAK is detected on the serial line
- */
-asmlinkage void gdbstub_rx_irq(struct pt_regs *regs, enum exception_code excep)
-{
- char ch;
- int ret;
-
- gdbstub_entry("--> gdbstub_rx_irq\n");
-
- do {
- ret = gdbstub_io_rx_char(&ch, 1);
- if (ret != -EIO && ret != -EAGAIN) {
- if (ret != -EINTR)
- gdbstub_rx_unget = ch;
- gdbstub(regs, excep);
- }
- } while (ret != -EAGAIN);
-
- gdbstub_entry("<-- gdbstub_rx_irq\n");
-}
+++ /dev/null
-/* Boot entry point for MN10300 kernel
- *
- * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#include <linux/init.h>
-#include <linux/threads.h>
-#include <linux/linkage.h>
-#include <linux/serial_reg.h>
-#include <asm/thread_info.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/frame.inc>
-#include <asm/param.h>
-#include <unit/serial.h>
-#ifdef CONFIG_SMP
-#include <asm/smp.h>
-#include <asm/intctl-regs.h>
-#include <asm/cpu-regs.h>
-#include <proc/smp-regs.h>
-#endif /* CONFIG_SMP */
-
- __HEAD
-
-###############################################################################
-#
-# bootloader entry point
-#
-###############################################################################
- .globl _start
- .type _start,@function
-_start:
-#ifdef CONFIG_SMP
- #
- # If this is a secondary CPU (AP), then deal with that elsewhere
- #
- mov (CPUID),d3
- and CPUID_MASK,d3
- bne startup_secondary
-
- #
- # We're dealing with the primary CPU (BP) here, then.
- # Keep BP's D0,D1,D2 register for boot check.
- #
-
- # Set up the Boot IPI for each secondary CPU
- mov 0x1,a0
-loop_set_secondary_icr:
- mov a0,a1
- asl CROSS_ICR_CPU_SHIFT,a1
- add CROSS_GxICR(SMP_BOOT_IRQ,0),a1
- movhu (a1),d3
- or GxICR_ENABLE|GxICR_LEVEL_0,d3
- movhu d3,(a1)
- movhu (a1),d3 # flush
- inc a0
- cmp NR_CPUS,a0
- bne loop_set_secondary_icr
-#endif /* CONFIG_SMP */
-
- # save commandline pointer
- mov d0,a3
-
- # preload the PGD pointer register
- mov swapper_pg_dir,d0
- mov d0,(PTBR)
- clr d0
- movbu d0,(PIDR)
-
- # turn on the TLBs
- mov MMUCTR_IIV|MMUCTR_DIV,d0
- mov d0,(MMUCTR)
-#ifdef CONFIG_AM34_2
- mov MMUCTR_ITE|MMUCTR_DTE|MMUCTR_CE|MMUCTR_WTE,d0
-#else
- mov MMUCTR_ITE|MMUCTR_DTE|MMUCTR_CE,d0
-#endif
- mov d0,(MMUCTR)
-
- # turn on AM33v2 exception handling mode and set the trap table base
- movhu (CPUP),d0
- or CPUP_EXM_AM33V2,d0
- movhu d0,(CPUP)
- mov CONFIG_INTERRUPT_VECTOR_BASE,d0
- mov d0,(TBR)
-
- # invalidate and enable both of the caches
-#ifdef CONFIG_SMP
- mov ECHCTR,a0
- clr d0
- mov d0,(a0)
-#endif
- mov CHCTR,a0
- clr d0
- movhu d0,(a0) # turn off first
- mov CHCTR_ICINV|CHCTR_DCINV,d0
- movhu d0,(a0)
- setlb
- mov (a0),d0
- btst CHCTR_ICBUSY|CHCTR_DCBUSY,d0 # wait till not busy
- lne
-
-#ifdef CONFIG_MN10300_CACHE_ENABLED
-#ifdef CONFIG_MN10300_CACHE_WBACK
-#ifndef CONFIG_MN10300_CACHE_WBACK_NOWRALLOC
- mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRBACK,d0
-#else
- mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRBACK|CHCTR_DCALMD,d0
-#endif /* NOWRALLOC */
-#else
- mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRTHROUGH,d0
-#endif /* WBACK */
- movhu d0,(a0) # enable
-#endif /* ENABLED */
-
- # turn on RTS on the debug serial port if applicable
-#ifdef CONFIG_MN10300_UNIT_ASB2305
- bset UART_MCR_RTS,(ASB2305_DEBUG_MCR)
-#endif
-
- # clear the BSS area
- mov __bss_start,a0
- mov __bss_stop,a1
- clr d0
-bssclear:
- cmp a1,a0
- bge bssclear_end
- mov d0,(a0)
- inc4 a0
- bra bssclear
-bssclear_end:
-
- # retrieve the parameters (including command line) before we overwrite
- # them
- cmp 0xabadcafe,d1
- bne __no_parameters
-
-__copy_parameters:
- mov redboot_command_line,a0
- mov a0,a1
- add COMMAND_LINE_SIZE,a1
-1:
- movbu (a3),d0
- inc a3
- movbu d0,(a0)
- inc a0
- cmp a1,a0
- blt 1b
-
- mov redboot_platform_name,a0
- mov a0,a1
- add COMMAND_LINE_SIZE,a1
- mov d2,a3
-1:
- movbu (a3),d0
- inc a3
- movbu d0,(a0)
- inc a0
- cmp a1,a0
- blt 1b
-
-__no_parameters:
-
- # set up the registers with recognisable rubbish in them
- mov init_thread_union+THREAD_SIZE-12,sp
-
- mov 0xea01eaea,d0
- mov d0,(4,sp) # EPSW save area
- mov 0xea02eaea,d0
- mov d0,(8,sp) # PC save area
-
- mov 0xeb0060ed,d0
- mov d0,mdr
- mov 0xeb0061ed,d0
- mov d0,mdrq
- mov 0xeb0062ed,d0
- mov d0,mcrh
- mov 0xeb0063ed,d0
- mov d0,mcrl
- mov 0xeb0064ed,d0
- mov d0,mcvf
- mov 0xed0065ed,a3
- mov a3,usp
-
- mov 0xed00e0ed,e0
- mov 0xed00e1ed,e1
- mov 0xed00e2ed,e2
- mov 0xed00e3ed,e3
- mov 0xed00e4ed,e4
- mov 0xed00e5ed,e5
- mov 0xed00e6ed,e6
- mov 0xed00e7ed,e7
-
- mov 0xed00d0ed,d0
- mov 0xed00d1ed,d1
- mov 0xed00d2ed,d2
- mov 0xed00d3ed,d3
- mov 0xed00a0ed,a0
- mov 0xed00a1ed,a1
- mov 0xed00a2ed,a2
- mov 0,a3
-
- # set up the initial kernel stack
- SAVE_ALL
- mov 0xffffffff,d0
- mov d0,(REG_ORIG_D0,fp)
-
- # put different recognisable rubbish in the regs
- mov 0xfb0060ed,d0
- mov d0,mdr
- mov 0xfb0061ed,d0
- mov d0,mdrq
- mov 0xfb0062ed,d0
- mov d0,mcrh
- mov 0xfb0063ed,d0
- mov d0,mcrl
- mov 0xfb0064ed,d0
- mov d0,mcvf
- mov 0xfd0065ed,a0
- mov a0,usp
-
- mov 0xfd00e0ed,e0
- mov 0xfd00e1ed,e1
- mov 0xfd00e2ed,e2
- mov 0xfd00e3ed,e3
- mov 0xfd00e4ed,e4
- mov 0xfd00e5ed,e5
- mov 0xfd00e6ed,e6
- mov 0xfd00e7ed,e7
-
- mov 0xfd00d0ed,d0
- mov 0xfd00d1ed,d1
- mov 0xfd00d2ed,d2
- mov 0xfd00d3ed,d3
- mov 0xfd00a0ed,a0
- mov 0xfd00a1ed,a1
- mov 0xfd00a2ed,a2
-
- # we may be holding current in E2
-#ifdef CONFIG_MN10300_CURRENT_IN_E2
- mov init_task,e2
-#endif
-
- # initialise the processor and the unit
- call processor_init[],0
- call unit_init[],0
-
-#ifdef CONFIG_SMP
- # mark the primary CPU in cpu_boot_map
- mov cpu_boot_map,a0
- mov 0x1,d0
- mov d0,(a0)
-
- # signal each secondary CPU to begin booting
- mov 0x1,d2 # CPU ID
-
-loop_request_boot_secondary:
- mov d2,a0
- # send SMP_BOOT_IPI to secondary CPU
- asl CROSS_ICR_CPU_SHIFT,a0
- add CROSS_GxICR(SMP_BOOT_IRQ,0),a0
- movhu (a0),d0
- or GxICR_REQUEST|GxICR_DETECT,d0
- movhu d0,(a0)
- movhu (a0),d0 # flush
-
- # wait up to 100ms for AP's IPI to be received
- clr d3
-wait_on_secondary_boot:
- mov DELAY_TIME_BOOT_IPI,d0
- call __delay[],0
- inc d3
- mov cpu_boot_map,a0
- mov (a0),d0
- lsr d2,d0
- btst 0x1,d0
- bne 1f
- cmp TIME_OUT_COUNT_BOOT_IPI,d3
- bne wait_on_secondary_boot
-1:
- inc d2
- cmp NR_CPUS,d2
- bne loop_request_boot_secondary
-#endif /* CONFIG_SMP */
-
-#ifdef CONFIG_GDBSTUB
- call gdbstub_init[],0
-
-#ifdef CONFIG_GDBSTUB_IMMEDIATE
- .globl __gdbstub_pause
-__gdbstub_pause:
- bra __gdbstub_pause
-#endif
-#endif
-
- jmp start_kernel
- .size _start,.-_start
-
-###############################################################################
-#
-# Secondary CPU boot point
-#
-###############################################################################
-#ifdef CONFIG_SMP
-startup_secondary:
- # preload the PGD pointer register
- mov swapper_pg_dir,d0
- mov d0,(PTBR)
- clr d0
- movbu d0,(PIDR)
-
- # turn on the TLBs
- mov MMUCTR_IIV|MMUCTR_DIV,d0
- mov d0,(MMUCTR)
-#ifdef CONFIG_AM34_2
- mov MMUCTR_ITE|MMUCTR_DTE|MMUCTR_CE|MMUCTR_WTE,d0
-#else
- mov MMUCTR_ITE|MMUCTR_DTE|MMUCTR_CE,d0
-#endif
- mov d0,(MMUCTR)
-
- # turn on AM33v2 exception handling mode and set the trap table base
- movhu (CPUP),d0
- or CPUP_EXM_AM33V2,d0
- movhu d0,(CPUP)
-
- # set the interrupt vector table
- mov CONFIG_INTERRUPT_VECTOR_BASE,d0
- mov d0,(TBR)
-
- # invalidate and enable both of the caches
- mov ECHCTR,a0
- clr d0
- mov d0,(a0)
- mov CHCTR,a0
- clr d0
- movhu d0,(a0) # turn off first
- mov CHCTR_ICINV|CHCTR_DCINV,d0
- movhu d0,(a0)
- setlb
- mov (a0),d0
- btst CHCTR_ICBUSY|CHCTR_DCBUSY,d0 # wait till not busy (use CPU loop buffer)
- lne
-
-#ifdef CONFIG_MN10300_CACHE_ENABLED
-#ifdef CONFIG_MN10300_CACHE_WBACK
-#ifndef CONFIG_MN10300_CACHE_WBACK_NOWRALLOC
- mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRBACK,d0
-#else
- mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRBACK|CHCTR_DCALMD,d0
-#endif /* !NOWRALLOC */
-#else
- mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRTHROUGH,d0
-#endif /* WBACK */
- movhu d0,(a0) # enable
-#endif /* ENABLED */
-
- # Clear the boot IPI interrupt for this CPU
- movhu (GxICR(SMP_BOOT_IRQ)),d0
- and ~GxICR_REQUEST,d0
- movhu d0,(GxICR(SMP_BOOT_IRQ))
- movhu (GxICR(SMP_BOOT_IRQ)),d0 # flush
-
- /* get stack */
- mov CONFIG_INTERRUPT_VECTOR_BASE + CONFIG_BOOT_STACK_OFFSET,a0
- mov (CPUID),d0
- and CPUID_MASK,d0
- mulu CONFIG_BOOT_STACK_SIZE,d0
- sub d0,a0
- mov a0,sp
-
- # init interrupt for AP
- call smp_prepare_cpu_init[],0
-
- # mark this secondary CPU in cpu_boot_map
- mov (CPUID),d0
- mov 0x1,d1
- asl d0,d1
- mov cpu_boot_map,a0
- bset d1,(a0)
-
- or EPSW_IE|EPSW_IM_1,epsw # permit level 0 interrupts
- nop
- nop
-#ifdef CONFIG_MN10300_CACHE_WBACK
- # flush the local cache if it's in writeback mode
- call mn10300_local_dcache_flush_inv[],0
- setlb
- mov (CHCTR),d0
- btst CHCTR_DCBUSY,d0 # wait till not busy (use CPU loop buffer)
- lne
-#endif
-
- # now sleep waiting for further instructions
-secondary_sleep:
- mov CPUM_SLEEP,d0
- movhu d0,(CPUM)
- nop
- nop
- bra secondary_sleep
- .size startup_secondary,.-startup_secondary
-#endif /* CONFIG_SMP */
-
-###############################################################################
-#
-#
-#
-###############################################################################
-ENTRY(__head_end)
-
-/*
- * This is initialized to disallow all access to the low 2G region
- * - the high 2G region is managed directly by the MMU
- * - range 0x70000000-0x7C000000 are initialised for use by VMALLOC
- */
- .section .bss
- .balign PAGE_SIZE
-ENTRY(swapper_pg_dir)
- .space PTRS_PER_PGD*4
-
-/*
- * The page tables are initialized to only 8MB here - the final page
- * tables are set up later depending on memory size.
- */
-
- .balign PAGE_SIZE
-ENTRY(empty_zero_page)
- .space PAGE_SIZE
-
- .balign PAGE_SIZE
-ENTRY(large_page_table)
- .space PAGE_SIZE
-
- .balign PAGE_SIZE
-ENTRY(kernel_vmalloc_ptes)
- .space ((VMALLOC_END-VMALLOC_START)/PAGE_SIZE)*4
+++ /dev/null
-/* Internal definitions for the arch part of the core kernel
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#include <linux/irqreturn.h>
-
-struct clocksource;
-struct clock_event_device;
-
-/*
- * entry.S
- */
-extern void ret_from_fork(struct task_struct *) __attribute__((noreturn));
-extern void ret_from_kernel_thread(struct task_struct *) __attribute__((noreturn));
-
-/*
- * smp-low.S
- */
-#ifdef CONFIG_SMP
-extern void mn10300_low_ipi_handler(void);
-#endif
-
-/*
- * smp.c
- */
-#ifdef CONFIG_SMP
-extern void smp_jump_to_debugger(void);
-#endif
-
-/*
- * time.c
- */
-extern irqreturn_t local_timer_interrupt(void);
+++ /dev/null
-/* MN10300 Misaligned multibyte-word I/O
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <asm/io.h>
-
-/*
- * output data from a potentially misaligned buffer
- */
-void __outsl(unsigned long addr, const void *buffer, int count)
-{
- const unsigned char *buf = buffer;
- unsigned long val;
-
- while (count--) {
- memcpy(&val, buf, 4);
- outl(val, addr);
- buf += 4;
- }
-}
-EXPORT_SYMBOL(__outsl);
+++ /dev/null
-/* MN10300 Arch-specific interrupt handling
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/kernel_stat.h>
-#include <linux/seq_file.h>
-#include <linux/cpumask.h>
-#include <asm/setup.h>
-#include <asm/serial-regs.h>
-
-unsigned long __mn10300_irq_enabled_epsw[NR_CPUS] __cacheline_aligned_in_smp = {
- [0 ... NR_CPUS - 1] = EPSW_IE | EPSW_IM_7
-};
-EXPORT_SYMBOL(__mn10300_irq_enabled_epsw);
-
-#ifdef CONFIG_SMP
-static char irq_affinity_online[NR_IRQS] = {
- [0 ... NR_IRQS - 1] = 0
-};
-
-#define NR_IRQ_WORDS ((NR_IRQS + 31) / 32)
-static unsigned long irq_affinity_request[NR_IRQ_WORDS] = {
- [0 ... NR_IRQ_WORDS - 1] = 0
-};
-#endif /* CONFIG_SMP */
-
-atomic_t irq_err_count;
-
-/*
- * MN10300 interrupt controller operations
- */
-static void mn10300_cpupic_ack(struct irq_data *d)
-{
- unsigned int irq = d->irq;
- unsigned long flags;
- u16 tmp;
-
- flags = arch_local_cli_save();
- GxICR_u8(irq) = GxICR_DETECT;
- tmp = GxICR(irq);
- arch_local_irq_restore(flags);
-}
-
-static void __mask_and_set_icr(unsigned int irq,
- unsigned int mask, unsigned int set)
-{
- unsigned long flags;
- u16 tmp;
-
- flags = arch_local_cli_save();
- tmp = GxICR(irq);
- GxICR(irq) = (tmp & mask) | set;
- tmp = GxICR(irq);
- arch_local_irq_restore(flags);
-}
-
-static void mn10300_cpupic_mask(struct irq_data *d)
-{
- __mask_and_set_icr(d->irq, GxICR_LEVEL, 0);
-}
-
-static void mn10300_cpupic_mask_ack(struct irq_data *d)
-{
- unsigned int irq = d->irq;
-#ifdef CONFIG_SMP
- unsigned long flags;
- u16 tmp;
-
- flags = arch_local_cli_save();
-
- if (!test_and_clear_bit(irq, irq_affinity_request)) {
- tmp = GxICR(irq);
- GxICR(irq) = (tmp & GxICR_LEVEL) | GxICR_DETECT;
- tmp = GxICR(irq);
- } else {
- u16 tmp2;
- tmp = GxICR(irq);
- GxICR(irq) = (tmp & GxICR_LEVEL);
- tmp2 = GxICR(irq);
-
- irq_affinity_online[irq] =
- cpumask_any_and(irq_data_get_affinity_mask(d),
- cpu_online_mask);
- CROSS_GxICR(irq, irq_affinity_online[irq]) =
- (tmp & (GxICR_LEVEL | GxICR_ENABLE)) | GxICR_DETECT;
- tmp = CROSS_GxICR(irq, irq_affinity_online[irq]);
- }
-
- arch_local_irq_restore(flags);
-#else /* CONFIG_SMP */
- __mask_and_set_icr(irq, GxICR_LEVEL, GxICR_DETECT);
-#endif /* CONFIG_SMP */
-}
-
-static void mn10300_cpupic_unmask(struct irq_data *d)
-{
- __mask_and_set_icr(d->irq, GxICR_LEVEL, GxICR_ENABLE);
-}
-
-static void mn10300_cpupic_unmask_clear(struct irq_data *d)
-{
- unsigned int irq = d->irq;
- /* the MN10300 PIC latches its interrupt request bit, even after the
- * device has ceased to assert its interrupt line and the interrupt
- * channel has been disabled in the PIC, so for level-triggered
- * interrupts we need to clear the request bit when we re-enable */
-#ifdef CONFIG_SMP
- unsigned long flags;
- u16 tmp;
-
- flags = arch_local_cli_save();
-
- if (!test_and_clear_bit(irq, irq_affinity_request)) {
- tmp = GxICR(irq);
- GxICR(irq) = (tmp & GxICR_LEVEL) | GxICR_ENABLE | GxICR_DETECT;
- tmp = GxICR(irq);
- } else {
- tmp = GxICR(irq);
-
- irq_affinity_online[irq] = cpumask_any_and(irq_data_get_affinity_mask(d),
- cpu_online_mask);
- CROSS_GxICR(irq, irq_affinity_online[irq]) = (tmp & GxICR_LEVEL) | GxICR_ENABLE | GxICR_DETECT;
- tmp = CROSS_GxICR(irq, irq_affinity_online[irq]);
- }
-
- arch_local_irq_restore(flags);
-#else /* CONFIG_SMP */
- __mask_and_set_icr(irq, GxICR_LEVEL, GxICR_ENABLE | GxICR_DETECT);
-#endif /* CONFIG_SMP */
-}
-
-#ifdef CONFIG_SMP
-static int
-mn10300_cpupic_setaffinity(struct irq_data *d, const struct cpumask *mask,
- bool force)
-{
- unsigned long flags;
-
- flags = arch_local_cli_save();
- set_bit(d->irq, irq_affinity_request);
- arch_local_irq_restore(flags);
- return 0;
-}
-#endif /* CONFIG_SMP */
-
-/*
- * MN10300 PIC level-triggered IRQ handling.
- *
- * The PIC has no 'ACK' function per se. It is possible to clear individual
- * channel latches, but each latch relatches whether or not the channel is
- * masked, so we need to clear the latch when we unmask the channel.
- *
- * Also for this reason, we don't supply an ack() op (it's unused anyway if
- * mask_ack() is provided), and mask_ack() just masks.
- */
-static struct irq_chip mn10300_cpu_pic_level = {
- .name = "cpu_l",
- .irq_disable = mn10300_cpupic_mask,
- .irq_enable = mn10300_cpupic_unmask_clear,
- .irq_ack = NULL,
- .irq_mask = mn10300_cpupic_mask,
- .irq_mask_ack = mn10300_cpupic_mask,
- .irq_unmask = mn10300_cpupic_unmask_clear,
-#ifdef CONFIG_SMP
- .irq_set_affinity = mn10300_cpupic_setaffinity,
-#endif
-};
-
-/*
- * MN10300 PIC edge-triggered IRQ handling.
- *
- * We use the latch clearing function of the PIC as the 'ACK' function.
- */
-static struct irq_chip mn10300_cpu_pic_edge = {
- .name = "cpu_e",
- .irq_disable = mn10300_cpupic_mask,
- .irq_enable = mn10300_cpupic_unmask,
- .irq_ack = mn10300_cpupic_ack,
- .irq_mask = mn10300_cpupic_mask,
- .irq_mask_ack = mn10300_cpupic_mask_ack,
- .irq_unmask = mn10300_cpupic_unmask,
-#ifdef CONFIG_SMP
- .irq_set_affinity = mn10300_cpupic_setaffinity,
-#endif
-};
-
-/*
- * 'what should we do if we get a hw irq event on an illegal vector'.
- * each architecture has to answer this themselves.
- */
-void ack_bad_irq(int irq)
-{
- printk(KERN_WARNING "unexpected IRQ trap at vector %02x\n", irq);
-}
-
-/*
- * change the level at which an IRQ executes
- * - must not be called whilst interrupts are being processed!
- */
-void set_intr_level(int irq, u16 level)
-{
- BUG_ON(in_interrupt());
-
- __mask_and_set_icr(irq, GxICR_ENABLE, level);
-}
-
-/*
- * mark an interrupt to be ACK'd after interrupt handlers have been run rather
- * than before
- */
-void mn10300_set_lateack_irq_type(int irq)
-{
- irq_set_chip_and_handler(irq, &mn10300_cpu_pic_level,
- handle_level_irq);
-}
-
-/*
- * initialise the interrupt system
- */
-void __init init_IRQ(void)
-{
- int irq;
-
- for (irq = 0; irq < NR_IRQS; irq++)
- if (irq_get_chip(irq) == &no_irq_chip)
- /* due to the PIC latching interrupt requests, even
- * when the IRQ is disabled, IRQ_PENDING is superfluous
- * and we can use handle_level_irq() for edge-triggered
- * interrupts */
- irq_set_chip_and_handler(irq, &mn10300_cpu_pic_edge,
- handle_level_irq);
-
- unit_init_IRQ();
-}
-
-/*
- * handle normal device IRQs
- */
-asmlinkage void do_IRQ(void)
-{
- unsigned long sp, epsw, irq_disabled_epsw, old_irq_enabled_epsw;
- unsigned int cpu_id = smp_processor_id();
- int irq;
-
- sp = current_stack_pointer();
- BUG_ON(sp - (sp & ~(THREAD_SIZE - 1)) < STACK_WARN);
-
- /* make sure local_irq_enable() doesn't muck up the interrupt priority
- * setting in EPSW */
- old_irq_enabled_epsw = __mn10300_irq_enabled_epsw[cpu_id];
- local_save_flags(epsw);
- __mn10300_irq_enabled_epsw[cpu_id] = EPSW_IE | (EPSW_IM & epsw);
- irq_disabled_epsw = EPSW_IE | MN10300_CLI_LEVEL;
-
-#ifdef CONFIG_MN10300_WD_TIMER
- __IRQ_STAT(cpu_id, __irq_count)++;
-#endif
-
- irq_enter();
-
- for (;;) {
- /* ask the interrupt controller for the next IRQ to process
- * - the result we get depends on EPSW.IM
- */
- irq = IAGR & IAGR_GN;
- if (!irq)
- break;
-
- local_irq_restore(irq_disabled_epsw);
-
- generic_handle_irq(irq >> 2);
-
- /* restore IRQ controls for IAGR access */
- local_irq_restore(epsw);
- }
-
- __mn10300_irq_enabled_epsw[cpu_id] = old_irq_enabled_epsw;
-
- irq_exit();
-}
-
-/*
- * Display interrupt management information through /proc/interrupts
- */
-int arch_show_interrupts(struct seq_file *p, int prec)
-{
-#ifdef CONFIG_MN10300_WD_TIMER
- int j;
-
- seq_printf(p, "%*s: ", prec, "NMI");
- for (j = 0; j < NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "%10u ", nmi_count(j));
- seq_putc(p, '\n');
-#endif
-
- seq_printf(p, "%*s: ", prec, "ERR");
- seq_printf(p, "%10u\n", atomic_read(&irq_err_count));
- return 0;
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-void migrate_irqs(void)
-{
- int irq;
- unsigned int self, new;
- unsigned long flags;
-
- self = smp_processor_id();
- for (irq = 0; irq < NR_IRQS; irq++) {
- struct irq_data *data = irq_get_irq_data(irq);
- struct cpumask *mask = irq_data_get_affinity_mask(data);
-
- if (irqd_is_per_cpu(data))
- continue;
-
- if (cpumask_test_cpu(self, mask) &&
- !cpumask_intersects(&irq_affinity[irq], cpu_online_mask)) {
- int cpu_id;
- cpu_id = cpumask_first(cpu_online_mask);
- cpumask_set_cpu(cpu_id, mask);
- }
- /* We need to operate irq_affinity_online atomically. */
- arch_local_cli_save(flags);
- if (irq_affinity_online[irq] == self) {
- u16 x, tmp;
-
- x = GxICR(irq);
- GxICR(irq) = x & GxICR_LEVEL;
- tmp = GxICR(irq);
-
- new = cpumask_any_and(mask, cpu_online_mask);
- irq_affinity_online[irq] = new;
-
- CROSS_GxICR(irq, new) =
- (x & GxICR_LEVEL) | GxICR_DETECT;
- tmp = CROSS_GxICR(irq, new);
-
- x &= GxICR_LEVEL | GxICR_ENABLE;
- if (GxICR(irq) & GxICR_REQUEST)
- x |= GxICR_REQUEST | GxICR_DETECT;
- CROSS_GxICR(irq, new) = x;
- tmp = CROSS_GxICR(irq, new);
- }
- arch_local_irq_restore(flags);
- }
-}
-#endif /* CONFIG_HOTPLUG_CPU */
+++ /dev/null
-/* kgdb support for MN10300
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#include <linux/slab.h>
-#include <linux/ptrace.h>
-#include <linux/kgdb.h>
-#include <linux/uaccess.h>
-#include <unit/leds.h>
-#include <unit/serial.h>
-#include <asm/debugger.h>
-#include <asm/serial-regs.h>
-#include "internal.h"
-
-/*
- * Software single-stepping breakpoint save (used by __switch_to())
- */
-static struct thread_info *kgdb_sstep_thread;
-u8 *kgdb_sstep_bp_addr[2];
-u8 kgdb_sstep_bp[2];
-
-/*
- * Copy kernel exception frame registers to the GDB register file
- */
-void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs)
-{
- unsigned long ssp = (unsigned long) (regs + 1);
-
- gdb_regs[GDB_FR_D0] = regs->d0;
- gdb_regs[GDB_FR_D1] = regs->d1;
- gdb_regs[GDB_FR_D2] = regs->d2;
- gdb_regs[GDB_FR_D3] = regs->d3;
- gdb_regs[GDB_FR_A0] = regs->a0;
- gdb_regs[GDB_FR_A1] = regs->a1;
- gdb_regs[GDB_FR_A2] = regs->a2;
- gdb_regs[GDB_FR_A3] = regs->a3;
- gdb_regs[GDB_FR_SP] = (regs->epsw & EPSW_nSL) ? regs->sp : ssp;
- gdb_regs[GDB_FR_PC] = regs->pc;
- gdb_regs[GDB_FR_MDR] = regs->mdr;
- gdb_regs[GDB_FR_EPSW] = regs->epsw;
- gdb_regs[GDB_FR_LIR] = regs->lir;
- gdb_regs[GDB_FR_LAR] = regs->lar;
- gdb_regs[GDB_FR_MDRQ] = regs->mdrq;
- gdb_regs[GDB_FR_E0] = regs->e0;
- gdb_regs[GDB_FR_E1] = regs->e1;
- gdb_regs[GDB_FR_E2] = regs->e2;
- gdb_regs[GDB_FR_E3] = regs->e3;
- gdb_regs[GDB_FR_E4] = regs->e4;
- gdb_regs[GDB_FR_E5] = regs->e5;
- gdb_regs[GDB_FR_E6] = regs->e6;
- gdb_regs[GDB_FR_E7] = regs->e7;
- gdb_regs[GDB_FR_SSP] = ssp;
- gdb_regs[GDB_FR_MSP] = 0;
- gdb_regs[GDB_FR_USP] = regs->sp;
- gdb_regs[GDB_FR_MCRH] = regs->mcrh;
- gdb_regs[GDB_FR_MCRL] = regs->mcrl;
- gdb_regs[GDB_FR_MCVF] = regs->mcvf;
- gdb_regs[GDB_FR_DUMMY0] = 0;
- gdb_regs[GDB_FR_DUMMY1] = 0;
- gdb_regs[GDB_FR_FS0] = 0;
-}
-
-/*
- * Extracts kernel SP/PC values understandable by gdb from the values
- * saved by switch_to().
- */
-void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p)
-{
- gdb_regs[GDB_FR_SSP] = p->thread.sp;
- gdb_regs[GDB_FR_PC] = p->thread.pc;
- gdb_regs[GDB_FR_A3] = p->thread.a3;
- gdb_regs[GDB_FR_USP] = p->thread.usp;
- gdb_regs[GDB_FR_FPCR] = p->thread.fpu_state.fpcr;
-}
-
-/*
- * Fill kernel exception frame registers from the GDB register file
- */
-void gdb_regs_to_pt_regs(unsigned long *gdb_regs, struct pt_regs *regs)
-{
- regs->d0 = gdb_regs[GDB_FR_D0];
- regs->d1 = gdb_regs[GDB_FR_D1];
- regs->d2 = gdb_regs[GDB_FR_D2];
- regs->d3 = gdb_regs[GDB_FR_D3];
- regs->a0 = gdb_regs[GDB_FR_A0];
- regs->a1 = gdb_regs[GDB_FR_A1];
- regs->a2 = gdb_regs[GDB_FR_A2];
- regs->a3 = gdb_regs[GDB_FR_A3];
- regs->sp = gdb_regs[GDB_FR_SP];
- regs->pc = gdb_regs[GDB_FR_PC];
- regs->mdr = gdb_regs[GDB_FR_MDR];
- regs->epsw = gdb_regs[GDB_FR_EPSW];
- regs->lir = gdb_regs[GDB_FR_LIR];
- regs->lar = gdb_regs[GDB_FR_LAR];
- regs->mdrq = gdb_regs[GDB_FR_MDRQ];
- regs->e0 = gdb_regs[GDB_FR_E0];
- regs->e1 = gdb_regs[GDB_FR_E1];
- regs->e2 = gdb_regs[GDB_FR_E2];
- regs->e3 = gdb_regs[GDB_FR_E3];
- regs->e4 = gdb_regs[GDB_FR_E4];
- regs->e5 = gdb_regs[GDB_FR_E5];
- regs->e6 = gdb_regs[GDB_FR_E6];
- regs->e7 = gdb_regs[GDB_FR_E7];
- regs->sp = gdb_regs[GDB_FR_SSP];
- /* gdb_regs[GDB_FR_MSP]; */
- // regs->usp = gdb_regs[GDB_FR_USP];
- regs->mcrh = gdb_regs[GDB_FR_MCRH];
- regs->mcrl = gdb_regs[GDB_FR_MCRL];
- regs->mcvf = gdb_regs[GDB_FR_MCVF];
- /* gdb_regs[GDB_FR_DUMMY0]; */
- /* gdb_regs[GDB_FR_DUMMY1]; */
-
- // regs->fpcr = gdb_regs[GDB_FR_FPCR];
- // regs->fs0 = gdb_regs[GDB_FR_FS0];
-}
-
-struct kgdb_arch arch_kgdb_ops = {
- .gdb_bpt_instr = { 0xff },
- .flags = KGDB_HW_BREAKPOINT,
-};
-
-static const unsigned char mn10300_kgdb_insn_sizes[256] =
-{
- /* 1 2 3 4 5 6 7 8 9 a b c d e f */
- 1, 3, 3, 3, 1, 3, 3, 3, 1, 3, 3, 3, 1, 3, 3, 3, /* 0 */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 1 */
- 2, 2, 2, 2, 3, 3, 3, 3, 2, 2, 2, 2, 3, 3, 3, 3, /* 2 */
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, /* 3 */
- 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, /* 4 */
- 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, /* 5 */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 6 */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 7 */
- 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* 8 */
- 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* 9 */
- 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* a */
- 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* b */
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 2, 2, /* c */
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* d */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* e */
- 0, 2, 2, 2, 2, 2, 2, 4, 0, 3, 0, 4, 0, 6, 7, 1 /* f */
-};
-
-/*
- * Attempt to emulate single stepping by means of breakpoint instructions.
- * Although there is a single-step trace flag in EPSW, its use is not
- * sufficiently documented and is only intended for use with the JTAG debugger.
- */
-static int kgdb_arch_do_singlestep(struct pt_regs *regs)
-{
- unsigned long arg;
- unsigned size;
- u8 *pc = (u8 *)regs->pc, *sp = (u8 *)(regs + 1), cur;
- u8 *x = NULL, *y = NULL;
- int ret;
-
- ret = probe_kernel_read(&cur, pc, 1);
- if (ret < 0)
- return ret;
-
- size = mn10300_kgdb_insn_sizes[cur];
- if (size > 0) {
- x = pc + size;
- goto set_x;
- }
-
- switch (cur) {
- /* Bxx (d8,PC) */
- case 0xc0 ... 0xca:
- ret = probe_kernel_read(&arg, pc + 1, 1);
- if (ret < 0)
- return ret;
- x = pc + 2;
- if (arg >= 0 && arg <= 2)
- goto set_x;
- y = pc + (s8)arg;
- goto set_x_and_y;
-
- /* LXX (d8,PC) */
- case 0xd0 ... 0xda:
- x = pc + 1;
- if (regs->pc == regs->lar)
- goto set_x;
- y = (u8 *)regs->lar;
- goto set_x_and_y;
-
- /* SETLB - loads the next four bytes into the LIR register
- * (which mustn't include a breakpoint instruction) */
- case 0xdb:
- x = pc + 5;
- goto set_x;
-
- /* JMP (d16,PC) or CALL (d16,PC) */
- case 0xcc:
- case 0xcd:
- ret = probe_kernel_read(&arg, pc + 1, 2);
- if (ret < 0)
- return ret;
- x = pc + (s16)arg;
- goto set_x;
-
- /* JMP (d32,PC) or CALL (d32,PC) */
- case 0xdc:
- case 0xdd:
- ret = probe_kernel_read(&arg, pc + 1, 4);
- if (ret < 0)
- return ret;
- x = pc + (s32)arg;
- goto set_x;
-
- /* RETF */
- case 0xde:
- x = (u8 *)regs->mdr;
- goto set_x;
-
- /* RET */
- case 0xdf:
- ret = probe_kernel_read(&arg, pc + 2, 1);
- if (ret < 0)
- return ret;
- ret = probe_kernel_read(&x, sp + (s8)arg, 4);
- if (ret < 0)
- return ret;
- goto set_x;
-
- case 0xf0:
- ret = probe_kernel_read(&cur, pc + 1, 1);
- if (ret < 0)
- return ret;
-
- if (cur >= 0xf0 && cur <= 0xf7) {
- /* JMP (An) / CALLS (An) */
- switch (cur & 3) {
- case 0: x = (u8 *)regs->a0; break;
- case 1: x = (u8 *)regs->a1; break;
- case 2: x = (u8 *)regs->a2; break;
- case 3: x = (u8 *)regs->a3; break;
- }
- goto set_x;
- } else if (cur == 0xfc) {
- /* RETS */
- ret = probe_kernel_read(&x, sp, 4);
- if (ret < 0)
- return ret;
- goto set_x;
- } else if (cur == 0xfd) {
- /* RTI */
- ret = probe_kernel_read(&x, sp + 4, 4);
- if (ret < 0)
- return ret;
- goto set_x;
- } else {
- x = pc + 2;
- goto set_x;
- }
- break;
-
- /* potential 3-byte conditional branches */
- case 0xf8:
- ret = probe_kernel_read(&cur, pc + 1, 1);
- if (ret < 0)
- return ret;
- x = pc + 3;
-
- if (cur >= 0xe8 && cur <= 0xeb) {
- ret = probe_kernel_read(&arg, pc + 2, 1);
- if (ret < 0)
- return ret;
- if (arg >= 0 && arg <= 3)
- goto set_x;
- y = pc + (s8)arg;
- goto set_x_and_y;
- }
- goto set_x;
-
- case 0xfa:
- ret = probe_kernel_read(&cur, pc + 1, 1);
- if (ret < 0)
- return ret;
-
- if (cur == 0xff) {
- /* CALLS (d16,PC) */
- ret = probe_kernel_read(&arg, pc + 2, 2);
- if (ret < 0)
- return ret;
- x = pc + (s16)arg;
- goto set_x;
- }
-
- x = pc + 4;
- goto set_x;
-
- case 0xfc:
- ret = probe_kernel_read(&cur, pc + 1, 1);
- if (ret < 0)
- return ret;
-
- if (cur == 0xff) {
- /* CALLS (d32,PC) */
- ret = probe_kernel_read(&arg, pc + 2, 4);
- if (ret < 0)
- return ret;
- x = pc + (s32)arg;
- goto set_x;
- }
-
- x = pc + 6;
- goto set_x;
- }
-
- return 0;
-
-set_x:
- kgdb_sstep_bp_addr[0] = x;
- kgdb_sstep_bp_addr[1] = NULL;
- ret = probe_kernel_read(&kgdb_sstep_bp[0], x, 1);
- if (ret < 0)
- return ret;
- ret = probe_kernel_write(x, &arch_kgdb_ops.gdb_bpt_instr, 1);
- if (ret < 0)
- return ret;
- kgdb_sstep_thread = current_thread_info();
- debugger_local_cache_flushinv_one(x);
- return ret;
-
-set_x_and_y:
- kgdb_sstep_bp_addr[0] = x;
- kgdb_sstep_bp_addr[1] = y;
- ret = probe_kernel_read(&kgdb_sstep_bp[0], x, 1);
- if (ret < 0)
- return ret;
- ret = probe_kernel_read(&kgdb_sstep_bp[1], y, 1);
- if (ret < 0)
- return ret;
- ret = probe_kernel_write(x, &arch_kgdb_ops.gdb_bpt_instr, 1);
- if (ret < 0)
- return ret;
- ret = probe_kernel_write(y, &arch_kgdb_ops.gdb_bpt_instr, 1);
- if (ret < 0) {
- probe_kernel_write(kgdb_sstep_bp_addr[0],
- &kgdb_sstep_bp[0], 1);
- } else {
- kgdb_sstep_thread = current_thread_info();
- }
- debugger_local_cache_flushinv_one(x);
- debugger_local_cache_flushinv_one(y);
- return ret;
-}
-
-/*
- * Remove emplaced single-step breakpoints, returning true if we hit one of
- * them.
- */
-static bool kgdb_arch_undo_singlestep(struct pt_regs *regs)
-{
- bool hit = false;
- u8 *x = kgdb_sstep_bp_addr[0], *y = kgdb_sstep_bp_addr[1];
- u8 opcode;
-
- if (kgdb_sstep_thread == current_thread_info()) {
- if (x) {
- if (x == (u8 *)regs->pc)
- hit = true;
- if (probe_kernel_read(&opcode, x,
- 1) < 0 ||
- opcode != 0xff)
- BUG();
- probe_kernel_write(x, &kgdb_sstep_bp[0], 1);
- debugger_local_cache_flushinv_one(x);
- }
- if (y) {
- if (y == (u8 *)regs->pc)
- hit = true;
- if (probe_kernel_read(&opcode, y,
- 1) < 0 ||
- opcode != 0xff)
- BUG();
- probe_kernel_write(y, &kgdb_sstep_bp[1], 1);
- debugger_local_cache_flushinv_one(y);
- }
- }
-
- kgdb_sstep_bp_addr[0] = NULL;
- kgdb_sstep_bp_addr[1] = NULL;
- kgdb_sstep_thread = NULL;
- return hit;
-}
-
-/*
- * Catch a single-step-pending thread being deleted and make sure the global
- * single-step state is cleared. At this point the breakpoints should have
- * been removed by __switch_to().
- */
-void arch_release_thread_stack(unsigned long *stack)
-{
- struct thread_info *ti = (void *)stack;
- if (kgdb_sstep_thread == ti) {
- kgdb_sstep_thread = NULL;
-
- /* However, we may now be running in degraded mode, with most
- * of the CPUs disabled until such a time as KGDB is reentered,
- * so force immediate reentry */
- kgdb_breakpoint();
- }
-}
-
-/*
- * Handle unknown packets and [CcsDk] packets
- * - at this point breakpoints have been installed
- */
-int kgdb_arch_handle_exception(int vector, int signo, int err_code,
- char *remcom_in_buffer, char *remcom_out_buffer,
- struct pt_regs *regs)
-{
- long addr;
- char *ptr;
-
- switch (remcom_in_buffer[0]) {
- case 'c':
- case 's':
- /* try to read optional parameter, pc unchanged if no parm */
- ptr = &remcom_in_buffer[1];
- if (kgdb_hex2long(&ptr, &addr))
- regs->pc = addr;
- case 'D':
- case 'k':
- atomic_set(&kgdb_cpu_doing_single_step, -1);
-
- if (remcom_in_buffer[0] == 's') {
- kgdb_arch_do_singlestep(regs);
- kgdb_single_step = 1;
- atomic_set(&kgdb_cpu_doing_single_step,
- raw_smp_processor_id());
- }
- return 0;
- }
- return -1; /* this means that we do not want to exit from the handler */
-}
-
-/*
- * Handle event interception
- * - returns 0 if the exception should be skipped, -ERROR otherwise.
- */
-int debugger_intercept(enum exception_code excep, int signo, int si_code,
- struct pt_regs *regs)
-{
- int ret;
-
- if (kgdb_arch_undo_singlestep(regs)) {
- excep = EXCEP_TRAP;
- signo = SIGTRAP;
- si_code = TRAP_TRACE;
- }
-
- ret = kgdb_handle_exception(excep, signo, si_code, regs);
-
- debugger_local_cache_flushinv();
-
- return ret;
-}
-
-/*
- * Determine if we've hit a debugger special breakpoint
- */
-int at_debugger_breakpoint(struct pt_regs *regs)
-{
- return regs->pc == (unsigned long)&__arch_kgdb_breakpoint;
-}
-
-/*
- * Initialise kgdb
- */
-int kgdb_arch_init(void)
-{
- return 0;
-}
-
-/*
- * Do something, perhaps, but don't know what.
- */
-void kgdb_arch_exit(void)
-{
-}
-
-#ifdef CONFIG_SMP
-void debugger_nmi_interrupt(struct pt_regs *regs, enum exception_code code)
-{
- kgdb_nmicallback(arch_smp_processor_id(), regs);
- debugger_local_cache_flushinv();
-}
-
-void kgdb_roundup_cpus(unsigned long flags)
-{
- smp_jump_to_debugger();
-}
-#endif
+++ /dev/null
-/* MN10300 Kernel probes implementation
- *
- * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
- * Written by Mark Salter (msalter@redhat.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public Licence as published by
- * the Free Software Foundation; either version 2 of the Licence, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public Licence for more details.
- *
- * You should have received a copy of the GNU General Public Licence
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-#include <linux/kprobes.h>
-#include <linux/ptrace.h>
-#include <linux/spinlock.h>
-#include <linux/preempt.h>
-#include <linux/kdebug.h>
-#include <asm/cacheflush.h>
-
-struct kretprobe_blackpoint kretprobe_blacklist[] = { { NULL, NULL } };
-const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist);
-
-/* kprobe_status settings */
-#define KPROBE_HIT_ACTIVE 0x00000001
-#define KPROBE_HIT_SS 0x00000002
-
-static struct kprobe *cur_kprobe;
-static unsigned long cur_kprobe_orig_pc;
-static unsigned long cur_kprobe_next_pc;
-static int cur_kprobe_ss_flags;
-static unsigned long kprobe_status;
-static kprobe_opcode_t cur_kprobe_ss_buf[MAX_INSN_SIZE + 2];
-static unsigned long cur_kprobe_bp_addr;
-
-DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
-
-
-/* singlestep flag bits */
-#define SINGLESTEP_BRANCH 1
-#define SINGLESTEP_PCREL 2
-
-#define READ_BYTE(p, valp) \
- do { *(u8 *)(valp) = *(u8 *)(p); } while (0)
-
-#define READ_WORD16(p, valp) \
- do { \
- READ_BYTE((p), (valp)); \
- READ_BYTE((u8 *)(p) + 1, (u8 *)(valp) + 1); \
- } while (0)
-
-#define READ_WORD32(p, valp) \
- do { \
- READ_BYTE((p), (valp)); \
- READ_BYTE((u8 *)(p) + 1, (u8 *)(valp) + 1); \
- READ_BYTE((u8 *)(p) + 2, (u8 *)(valp) + 2); \
- READ_BYTE((u8 *)(p) + 3, (u8 *)(valp) + 3); \
- } while (0)
-
-
-static const u8 mn10300_insn_sizes[256] =
-{
- /* 1 2 3 4 5 6 7 8 9 a b c d e f */
- 1, 3, 3, 3, 1, 3, 3, 3, 1, 3, 3, 3, 1, 3, 3, 3, /* 0 */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 1 */
- 2, 2, 2, 2, 3, 3, 3, 3, 2, 2, 2, 2, 3, 3, 3, 3, /* 2 */
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, /* 3 */
- 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, /* 4 */
- 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, /* 5 */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 6 */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 7 */
- 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* 8 */
- 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* 9 */
- 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* a */
- 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* b */
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 2, 2, /* c */
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* d */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* e */
- 0, 2, 2, 2, 2, 2, 2, 4, 0, 3, 0, 4, 0, 6, 7, 1 /* f */
-};
-
-#define LT (1 << 0)
-#define GT (1 << 1)
-#define GE (1 << 2)
-#define LE (1 << 3)
-#define CS (1 << 4)
-#define HI (1 << 5)
-#define CC (1 << 6)
-#define LS (1 << 7)
-#define EQ (1 << 8)
-#define NE (1 << 9)
-#define RA (1 << 10)
-#define VC (1 << 11)
-#define VS (1 << 12)
-#define NC (1 << 13)
-#define NS (1 << 14)
-
-static const u16 cond_table[] = {
- /* V C N Z */
- /* 0 0 0 0 */ (NE | NC | CC | VC | GE | GT | HI),
- /* 0 0 0 1 */ (EQ | NC | CC | VC | GE | LE | LS),
- /* 0 0 1 0 */ (NE | NS | CC | VC | LT | LE | HI),
- /* 0 0 1 1 */ (EQ | NS | CC | VC | LT | LE | LS),
- /* 0 1 0 0 */ (NE | NC | CS | VC | GE | GT | LS),
- /* 0 1 0 1 */ (EQ | NC | CS | VC | GE | LE | LS),
- /* 0 1 1 0 */ (NE | NS | CS | VC | LT | LE | LS),
- /* 0 1 1 1 */ (EQ | NS | CS | VC | LT | LE | LS),
- /* 1 0 0 0 */ (NE | NC | CC | VS | LT | LE | HI),
- /* 1 0 0 1 */ (EQ | NC | CC | VS | LT | LE | LS),
- /* 1 0 1 0 */ (NE | NS | CC | VS | GE | GT | HI),
- /* 1 0 1 1 */ (EQ | NS | CC | VS | GE | LE | LS),
- /* 1 1 0 0 */ (NE | NC | CS | VS | LT | LE | LS),
- /* 1 1 0 1 */ (EQ | NC | CS | VS | LT | LE | LS),
- /* 1 1 1 0 */ (NE | NS | CS | VS | GE | GT | LS),
- /* 1 1 1 1 */ (EQ | NS | CS | VS | GE | LE | LS),
-};
-
-/*
- * Calculate what the PC will be after executing next instruction
- */
-static unsigned find_nextpc(struct pt_regs *regs, int *flags)
-{
- unsigned size;
- s8 x8;
- s16 x16;
- s32 x32;
- u8 opc, *pc, *sp, *next;
-
- next = 0;
- *flags = SINGLESTEP_PCREL;
-
- pc = (u8 *) regs->pc;
- sp = (u8 *) (regs + 1);
- opc = *pc;
-
- size = mn10300_insn_sizes[opc];
- if (size > 0) {
- next = pc + size;
- } else {
- switch (opc) {
- /* Bxx (d8,PC) */
- case 0xc0 ... 0xca:
- x8 = 2;
- if (cond_table[regs->epsw & 0xf] & (1 << (opc & 0xf)))
- x8 = (s8)pc[1];
- next = pc + x8;
- *flags |= SINGLESTEP_BRANCH;
- break;
-
- /* JMP (d16,PC) or CALL (d16,PC) */
- case 0xcc:
- case 0xcd:
- READ_WORD16(pc + 1, &x16);
- next = pc + x16;
- *flags |= SINGLESTEP_BRANCH;
- break;
-
- /* JMP (d32,PC) or CALL (d32,PC) */
- case 0xdc:
- case 0xdd:
- READ_WORD32(pc + 1, &x32);
- next = pc + x32;
- *flags |= SINGLESTEP_BRANCH;
- break;
-
- /* RETF */
- case 0xde:
- next = (u8 *)regs->mdr;
- *flags &= ~SINGLESTEP_PCREL;
- *flags |= SINGLESTEP_BRANCH;
- break;
-
- /* RET */
- case 0xdf:
- sp += pc[2];
- READ_WORD32(sp, &x32);
- next = (u8 *)x32;
- *flags &= ~SINGLESTEP_PCREL;
- *flags |= SINGLESTEP_BRANCH;
- break;
-
- case 0xf0:
- next = pc + 2;
- opc = pc[1];
- if (opc >= 0xf0 && opc <= 0xf7) {
- /* JMP (An) / CALLS (An) */
- switch (opc & 3) {
- case 0:
- next = (u8 *)regs->a0;
- break;
- case 1:
- next = (u8 *)regs->a1;
- break;
- case 2:
- next = (u8 *)regs->a2;
- break;
- case 3:
- next = (u8 *)regs->a3;
- break;
- }
- *flags &= ~SINGLESTEP_PCREL;
- *flags |= SINGLESTEP_BRANCH;
- } else if (opc == 0xfc) {
- /* RETS */
- READ_WORD32(sp, &x32);
- next = (u8 *)x32;
- *flags &= ~SINGLESTEP_PCREL;
- *flags |= SINGLESTEP_BRANCH;
- } else if (opc == 0xfd) {
- /* RTI */
- READ_WORD32(sp + 4, &x32);
- next = (u8 *)x32;
- *flags &= ~SINGLESTEP_PCREL;
- *flags |= SINGLESTEP_BRANCH;
- }
- break;
-
- /* potential 3-byte conditional branches */
- case 0xf8:
- next = pc + 3;
- opc = pc[1];
- if (opc >= 0xe8 && opc <= 0xeb &&
- (cond_table[regs->epsw & 0xf] &
- (1 << ((opc & 0xf) + 3)))
- ) {
- READ_BYTE(pc+2, &x8);
- next = pc + x8;
- *flags |= SINGLESTEP_BRANCH;
- }
- break;
-
- case 0xfa:
- if (pc[1] == 0xff) {
- /* CALLS (d16,PC) */
- READ_WORD16(pc + 2, &x16);
- next = pc + x16;
- } else
- next = pc + 4;
- *flags |= SINGLESTEP_BRANCH;
- break;
-
- case 0xfc:
- x32 = 6;
- if (pc[1] == 0xff) {
- /* CALLS (d32,PC) */
- READ_WORD32(pc + 2, &x32);
- }
- next = pc + x32;
- *flags |= SINGLESTEP_BRANCH;
- break;
- /* LXX (d8,PC) */
- /* SETLB - loads the next four bytes into the LIR reg */
- case 0xd0 ... 0xda:
- case 0xdb:
- panic("Can't singlestep Lxx/SETLB\n");
- break;
- }
- }
- return (unsigned)next;
-
-}
-
-/*
- * set up out of place singlestep of some branching instructions
- */
-static unsigned __kprobes singlestep_branch_setup(struct pt_regs *regs)
-{
- u8 opc, *pc, *sp, *next;
-
- next = NULL;
- pc = (u8 *) regs->pc;
- sp = (u8 *) (regs + 1);
-
- switch (pc[0]) {
- case 0xc0 ... 0xca: /* Bxx (d8,PC) */
- case 0xcc: /* JMP (d16,PC) */
- case 0xdc: /* JMP (d32,PC) */
- case 0xf8: /* Bxx (d8,PC) 3-byte version */
- /* don't really need to do anything except cause trap */
- next = pc;
- break;
-
- case 0xcd: /* CALL (d16,PC) */
- pc[1] = 5;
- pc[2] = 0;
- next = pc + 5;
- break;
-
- case 0xdd: /* CALL (d32,PC) */
- pc[1] = 7;
- pc[2] = 0;
- pc[3] = 0;
- pc[4] = 0;
- next = pc + 7;
- break;
-
- case 0xde: /* RETF */
- next = pc + 3;
- regs->mdr = (unsigned) next;
- break;
-
- case 0xdf: /* RET */
- sp += pc[2];
- next = pc + 3;
- *(unsigned *)sp = (unsigned) next;
- break;
-
- case 0xf0:
- next = pc + 2;
- opc = pc[1];
- if (opc >= 0xf0 && opc <= 0xf3) {
- /* CALLS (An) */
- /* use CALLS (d16,PC) to avoid mucking with An */
- pc[0] = 0xfa;
- pc[1] = 0xff;
- pc[2] = 4;
- pc[3] = 0;
- next = pc + 4;
- } else if (opc >= 0xf4 && opc <= 0xf7) {
- /* JMP (An) */
- next = pc;
- } else if (opc == 0xfc) {
- /* RETS */
- next = pc + 2;
- *(unsigned *) sp = (unsigned) next;
- } else if (opc == 0xfd) {
- /* RTI */
- next = pc + 2;
- *(unsigned *)(sp + 4) = (unsigned) next;
- }
- break;
-
- case 0xfa: /* CALLS (d16,PC) */
- pc[2] = 4;
- pc[3] = 0;
- next = pc + 4;
- break;
-
- case 0xfc: /* CALLS (d32,PC) */
- pc[2] = 6;
- pc[3] = 0;
- pc[4] = 0;
- pc[5] = 0;
- next = pc + 6;
- break;
-
- case 0xd0 ... 0xda: /* LXX (d8,PC) */
- case 0xdb: /* SETLB */
- panic("Can't singlestep Lxx/SETLB\n");
- }
-
- return (unsigned) next;
-}
-
-int __kprobes arch_prepare_kprobe(struct kprobe *p)
-{
- return 0;
-}
-
-void __kprobes arch_copy_kprobe(struct kprobe *p)
-{
- memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE);
-}
-
-void __kprobes arch_arm_kprobe(struct kprobe *p)
-{
- *p->addr = BREAKPOINT_INSTRUCTION;
- flush_icache_range((unsigned long) p->addr,
- (unsigned long) p->addr + sizeof(kprobe_opcode_t));
-}
-
-void __kprobes arch_disarm_kprobe(struct kprobe *p)
-{
-#ifndef CONFIG_MN10300_CACHE_SNOOP
- mn10300_dcache_flush();
- mn10300_icache_inv();
-#endif
-}
-
-void arch_remove_kprobe(struct kprobe *p)
-{
-}
-
-static inline
-void __kprobes disarm_kprobe(struct kprobe *p, struct pt_regs *regs)
-{
- *p->addr = p->opcode;
- regs->pc = (unsigned long) p->addr;
-#ifndef CONFIG_MN10300_CACHE_SNOOP
- mn10300_dcache_flush();
- mn10300_icache_inv();
-#endif
-}
-
-static inline
-void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
-{
- unsigned long nextpc;
-
- cur_kprobe_orig_pc = regs->pc;
- memcpy(cur_kprobe_ss_buf, &p->ainsn.insn[0], MAX_INSN_SIZE);
- regs->pc = (unsigned long) cur_kprobe_ss_buf;
-
- nextpc = find_nextpc(regs, &cur_kprobe_ss_flags);
- if (cur_kprobe_ss_flags & SINGLESTEP_PCREL)
- cur_kprobe_next_pc = cur_kprobe_orig_pc + (nextpc - regs->pc);
- else
- cur_kprobe_next_pc = nextpc;
-
- /* branching instructions need special handling */
- if (cur_kprobe_ss_flags & SINGLESTEP_BRANCH)
- nextpc = singlestep_branch_setup(regs);
-
- cur_kprobe_bp_addr = nextpc;
-
- *(u8 *) nextpc = BREAKPOINT_INSTRUCTION;
- mn10300_dcache_flush_range2((unsigned) cur_kprobe_ss_buf,
- sizeof(cur_kprobe_ss_buf));
- mn10300_icache_inv();
-}
-
-static inline int __kprobes kprobe_handler(struct pt_regs *regs)
-{
- struct kprobe *p;
- int ret = 0;
- unsigned int *addr = (unsigned int *) regs->pc;
-
- /* We're in an interrupt, but this is clear and BUG()-safe. */
- preempt_disable();
-
- /* Check we're not actually recursing */
- if (kprobe_running()) {
- /* We *are* holding lock here, so this is safe.
- Disarm the probe we just hit, and ignore it. */
- p = get_kprobe(addr);
- if (p) {
- disarm_kprobe(p, regs);
- ret = 1;
- } else {
- p = cur_kprobe;
- if (p->break_handler && p->break_handler(p, regs))
- goto ss_probe;
- }
- /* If it's not ours, can't be delete race, (we hold lock). */
- goto no_kprobe;
- }
-
- p = get_kprobe(addr);
- if (!p) {
- if (*addr != BREAKPOINT_INSTRUCTION) {
- /* The breakpoint instruction was removed right after
- * we hit it. Another cpu has removed either a
- * probepoint or a debugger breakpoint at this address.
- * In either case, no further handling of this
- * interrupt is appropriate.
- */
- ret = 1;
- }
- /* Not one of ours: let kernel handle it */
- goto no_kprobe;
- }
-
- kprobe_status = KPROBE_HIT_ACTIVE;
- cur_kprobe = p;
- if (p->pre_handler(p, regs)) {
- /* handler has already set things up, so skip ss setup */
- return 1;
- }
-
-ss_probe:
- prepare_singlestep(p, regs);
- kprobe_status = KPROBE_HIT_SS;
- return 1;
-
-no_kprobe:
- preempt_enable_no_resched();
- return ret;
-}
-
-/*
- * Called after single-stepping. p->addr is the address of the
- * instruction whose first byte has been replaced by the "breakpoint"
- * instruction. To avoid the SMP problems that can occur when we
- * temporarily put back the original opcode to single-step, we
- * single-stepped a copy of the instruction. The address of this
- * copy is p->ainsn.insn.
- */
-static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs)
-{
- /* we may need to fixup regs/stack after singlestepping a call insn */
- if (cur_kprobe_ss_flags & SINGLESTEP_BRANCH) {
- regs->pc = cur_kprobe_orig_pc;
- switch (p->ainsn.insn[0]) {
- case 0xcd: /* CALL (d16,PC) */
- *(unsigned *) regs->sp = regs->mdr = regs->pc + 5;
- break;
- case 0xdd: /* CALL (d32,PC) */
- /* fixup mdr and return address on stack */
- *(unsigned *) regs->sp = regs->mdr = regs->pc + 7;
- break;
- case 0xf0:
- if (p->ainsn.insn[1] >= 0xf0 &&
- p->ainsn.insn[1] <= 0xf3) {
- /* CALLS (An) */
- /* fixup MDR and return address on stack */
- regs->mdr = regs->pc + 2;
- *(unsigned *) regs->sp = regs->mdr;
- }
- break;
-
- case 0xfa: /* CALLS (d16,PC) */
- /* fixup MDR and return address on stack */
- *(unsigned *) regs->sp = regs->mdr = regs->pc + 4;
- break;
-
- case 0xfc: /* CALLS (d32,PC) */
- /* fixup MDR and return address on stack */
- *(unsigned *) regs->sp = regs->mdr = regs->pc + 6;
- break;
- }
- }
-
- regs->pc = cur_kprobe_next_pc;
- cur_kprobe_bp_addr = 0;
-}
-
-static inline int __kprobes post_kprobe_handler(struct pt_regs *regs)
-{
- if (!kprobe_running())
- return 0;
-
- if (cur_kprobe->post_handler)
- cur_kprobe->post_handler(cur_kprobe, regs, 0);
-
- resume_execution(cur_kprobe, regs);
- reset_current_kprobe();
- preempt_enable_no_resched();
- return 1;
-}
-
-/* Interrupts disabled, kprobe_lock held. */
-static inline
-int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
-{
- if (cur_kprobe->fault_handler &&
- cur_kprobe->fault_handler(cur_kprobe, regs, trapnr))
- return 1;
-
- if (kprobe_status & KPROBE_HIT_SS) {
- resume_execution(cur_kprobe, regs);
- reset_current_kprobe();
- preempt_enable_no_resched();
- }
- return 0;
-}
-
-/*
- * Wrapper routine to for handling exceptions.
- */
-int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
- unsigned long val, void *data)
-{
- struct die_args *args = data;
-
- switch (val) {
- case DIE_BREAKPOINT:
- if (cur_kprobe_bp_addr != args->regs->pc) {
- if (kprobe_handler(args->regs))
- return NOTIFY_STOP;
- } else {
- if (post_kprobe_handler(args->regs))
- return NOTIFY_STOP;
- }
- break;
- case DIE_GPF:
- if (kprobe_running() &&
- kprobe_fault_handler(args->regs, args->trapnr))
- return NOTIFY_STOP;
- break;
- default:
- break;
- }
- return NOTIFY_DONE;
-}
-
-/* Jprobes support. */
-static struct pt_regs jprobe_saved_regs;
-static struct pt_regs *jprobe_saved_regs_location;
-static kprobe_opcode_t jprobe_saved_stack[MAX_STACK_SIZE];
-
-int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
-{
- struct jprobe *jp = container_of(p, struct jprobe, kp);
-
- jprobe_saved_regs_location = regs;
- memcpy(&jprobe_saved_regs, regs, sizeof(struct pt_regs));
-
- /* Save a whole stack frame, this gets arguments
- * pushed onto the stack after using up all the
- * arg registers.
- */
- memcpy(&jprobe_saved_stack, regs + 1, sizeof(jprobe_saved_stack));
-
- /* setup return addr to the jprobe handler routine */
- regs->pc = (unsigned long) jp->entry;
- return 1;
-}
-
-void __kprobes jprobe_return(void)
-{
- void *orig_sp = jprobe_saved_regs_location + 1;
-
- preempt_enable_no_resched();
- asm volatile(" mov %0,sp\n"
- ".globl jprobe_return_bp_addr\n"
- "jprobe_return_bp_addr:\n\t"
- " .byte 0xff\n"
- : : "d" (orig_sp));
-}
-
-extern void jprobe_return_bp_addr(void);
-
-int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
-{
- u8 *addr = (u8 *) regs->pc;
-
- if (addr == (u8 *) jprobe_return_bp_addr) {
- if (jprobe_saved_regs_location != regs) {
- printk(KERN_ERR"JPROBE:"
- " Current regs (%p) does not match saved regs"
- " (%p).\n",
- regs, jprobe_saved_regs_location);
- BUG();
- }
-
- /* Restore old register state.
- */
- memcpy(regs, &jprobe_saved_regs, sizeof(struct pt_regs));
-
- memcpy(regs + 1, &jprobe_saved_stack,
- sizeof(jprobe_saved_stack));
- return 1;
- }
- return 0;
-}
-
-int __init arch_init_kprobes(void)
-{
- return 0;
-}
+++ /dev/null
-/* Debugging stuff for the MN10300-based processors
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/sched.h>
-#include <asm/serial-regs.h>
-
-#undef MN10300_CONSOLE_ON_SERIO
-
-/*
- * write a string directly through one of the serial ports on-board the MN10300
- */
-#ifdef MN10300_CONSOLE_ON_SERIO
-void debug_to_serial_mnser(const char *p, int n)
-{
- char ch;
-
- for (; n > 0; n--) {
- ch = *p++;
-
-#if MN10300_CONSOLE_ON_SERIO == 0
- while (SC0STR & (SC01STR_TBF)) continue;
- SC0TXB = ch;
- while (SC0STR & (SC01STR_TBF)) continue;
- if (ch == 0x0a) {
- SC0TXB = 0x0d;
- while (SC0STR & (SC01STR_TBF)) continue;
- }
-
-#elif MN10300_CONSOLE_ON_SERIO == 1
- while (SC1STR & (SC01STR_TBF)) continue;
- SC1TXB = ch;
- while (SC1STR & (SC01STR_TBF)) continue;
- if (ch == 0x0a) {
- SC1TXB = 0x0d;
- while (SC1STR & (SC01STR_TBF)) continue;
- }
-
-#elif MN10300_CONSOLE_ON_SERIO == 2
- while (SC2STR & (SC2STR_TBF)) continue;
- SC2TXB = ch;
- while (SC2STR & (SC2STR_TBF)) continue;
- if (ch == 0x0a) {
- SC2TXB = 0x0d;
- while (SC2STR & (SC2STR_TBF)) continue;
- }
-
-#endif
- }
-}
-#endif
-
+++ /dev/null
-###############################################################################
-#
-# Virtual DMA driver for MN10300 serial ports
-#
-# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
-# Written by David Howells (dhowells@redhat.com)
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public Licence
-# as published by the Free Software Foundation; either version
-# 2 of the Licence, or (at your option) any later version.
-#
-###############################################################################
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/page.h>
-#include <asm/smp.h>
-#include <asm/cpu-regs.h>
-#include <asm/frame.inc>
-#include <asm/timer-regs.h>
-#include <proc/cache.h>
-#include <unit/timex.h>
-#include "mn10300-serial.h"
-
-#define SCxCTR 0x00
-#define SCxICR 0x04
-#define SCxTXB 0x08
-#define SCxRXB 0x09
-#define SCxSTR 0x0c
-#define SCxTIM 0x0d
-
- .text
-
-###############################################################################
-#
-# serial port interrupt virtual DMA entry point
-# - intended to run at interrupt priority 1 (not affected by local_irq_disable)
-#
-###############################################################################
- .balign L1_CACHE_BYTES
-ENTRY(mn10300_serial_vdma_interrupt)
-# or EPSW_IE,psw # permit overriding by
- # debugging interrupts
- movm [d2,d3,a2,a3,exreg0],(sp)
-
- movhu (IAGR),a2 # see if which interrupt is
- # pending
- and IAGR_GN,a2
- add a2,a2
- add mn10300_serial_int_tbl,a2
-
- mov (a2+),a3
- mov (__iobase,a3),e2
- mov (a2),a2
- jmp (a2)
-
-###############################################################################
-#
-# serial port receive interrupt virtual DMA entry point
-# - intended to run at interrupt priority 1 (not affected by local_irq_disable)
-# - stores data/status byte pairs in the ring buffer
-# - induces a scheduler tick timer interrupt when done, which we then subvert
-# on entry:
-# A3 struct mn10300_serial_port *
-# E2 I/O port base
-#
-###############################################################################
-ENTRY(mn10300_serial_vdma_rx_handler)
- mov (__rx_icr,a3),e3
- mov GxICR_DETECT,d2
- movbu d2,(e3) # ACK the interrupt
- movhu (e3),d2 # flush
-
- mov (__rx_inp,a3),d3
- mov d3,a2
- add 2,d3
- and MNSC_BUFFER_SIZE-1,d3
- mov (__rx_outp,a3),d2
- cmp d3,d2
- beq mnsc_vdma_rx_overflow
-
- mov (__rx_buffer,a3),d2
- add d2,a2
- movhu (SCxSTR,e2),d2
- movbu d2,(1,a2)
- movbu (SCxRXB,e2),d2
- movbu d2,(a2)
- mov d3,(__rx_inp,a3)
- bset MNSCx_RX_AVAIL,(__intr_flags,a3)
-
-mnsc_vdma_rx_done:
- mov (__tm_icr,a3),a2
- mov GxICR_LEVEL_6|GxICR_ENABLE|GxICR_REQUEST|GxICR_DETECT,d2
- movhu d2,(a2) # request a slow interrupt
- movhu (a2),d2 # flush
-
- movm (sp),[d2,d3,a2,a3,exreg0]
- rti
-
-mnsc_vdma_rx_overflow:
- bset MNSCx_RX_OVERF,(__intr_flags,a3)
- bra mnsc_vdma_rx_done
-
-###############################################################################
-#
-# serial port transmit interrupt virtual DMA entry point
-# - intended to run at interrupt priority 1 (not affected by local_irq_disable)
-# - retrieves data bytes from the ring buffer and passes them to the serial port
-# - induces a scheduler tick timer interrupt when done, which we then subvert
-# A3 struct mn10300_serial_port *
-# E2 I/O port base
-#
-###############################################################################
- .balign L1_CACHE_BYTES
-ENTRY(mn10300_serial_vdma_tx_handler)
- mov (__tx_icr,a3),e3
- mov GxICR_DETECT,d2
- movbu d2,(e3) # ACK the interrupt
- movhu (e3),d2 # flush
-
- btst 0xFF,(__tx_flags,a3) # handle transmit flags
- bne mnsc_vdma_tx_flags
-
- movbu (SCxSTR,e2),d2 # don't try and transmit a char if the
- # buffer is not empty
- btst SC01STR_TBF,d2 # (may have tried to jumpstart)
- bne mnsc_vdma_tx_noint
-
- movbu (__tx_xchar,a3),d2 # handle hi-pri XON/XOFF
- or d2,d2
- bne mnsc_vdma_tx_xchar
-
- mov (__uart_state,a3),a2 # see if the TTY Tx queue has anything in it
- mov (__xmit_tail,a2),d3
- mov (__xmit_head,a2),d2
- cmp d3,d2
- beq mnsc_vdma_tx_empty
-
- mov (__xmit_buffer,a2),d2 # get a char from the buffer and
- # transmit it
- movbu (d3,d2),d2
- movbu d2,(SCxTXB,e2) # Tx
-
- inc d3 # advance the buffer pointer
- and __UART_XMIT_SIZE-1,d3
- mov (__xmit_head,a2),d2
- mov d3,(__xmit_tail,a2)
-
- sub d3,d2 # see if we've written everything
- beq mnsc_vdma_tx_empty
-
- and __UART_XMIT_SIZE-1,d2 # see if we just made a hole
- cmp __UART_XMIT_SIZE-2,d2
- beq mnsc_vdma_tx_made_hole
-
-mnsc_vdma_tx_done:
- mov (__tm_icr,a3),a2
- mov GxICR_LEVEL_6|GxICR_ENABLE|GxICR_REQUEST|GxICR_DETECT,d2
- movhu d2,(a2) # request a slow interrupt
- movhu (a2),d2 # flush
-
-mnsc_vdma_tx_noint:
- movm (sp),[d2,d3,a2,a3,exreg0]
- rti
-
-mnsc_vdma_tx_empty:
- mov +(NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL)|GxICR_DETECT),d2
- movhu d2,(e3) # disable the interrupt
- movhu (e3),d2 # flush
-
- bset MNSCx_TX_EMPTY,(__intr_flags,a3)
- bra mnsc_vdma_tx_done
-
-mnsc_vdma_tx_flags:
- btst MNSCx_TX_STOP,(__tx_flags,a3)
- bne mnsc_vdma_tx_stop
- movhu (SCxCTR,e2),d2 # turn on break mode
- or SC01CTR_BKE,d2
- movhu d2,(SCxCTR,e2)
-mnsc_vdma_tx_stop:
- mov +(NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL)|GxICR_DETECT),d2
- movhu d2,(e3) # disable transmit interrupts on this
- # channel
- movhu (e3),d2 # flush
- bra mnsc_vdma_tx_noint
-
-mnsc_vdma_tx_xchar:
- bclr 0xff,(__tx_xchar,a3)
- movbu d2,(SCxTXB,e2)
- bra mnsc_vdma_tx_done
-
-mnsc_vdma_tx_made_hole:
- bset MNSCx_TX_SPACE,(__intr_flags,a3)
- bra mnsc_vdma_tx_done
+++ /dev/null
-/* MN10300 On-chip serial port UART driver
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-static const char serial_name[] = "MN10300 Serial driver";
-static const char serial_version[] = "mn10300_serial-1.0";
-static const char serial_revdate[] = "2007-11-06";
-
-#if defined(CONFIG_MN10300_TTYSM_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
-#define SUPPORT_SYSRQ
-#endif
-
-#include <linux/module.h>
-#include <linux/serial.h>
-#include <linux/circ_buf.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/console.h>
-#include <linux/sysrq.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/bitops.h>
-#include <asm/serial-regs.h>
-#include <unit/timex.h>
-#include "mn10300-serial.h"
-
-#ifdef CONFIG_SMP
-#undef GxICR
-#define GxICR(X) CROSS_GxICR(X, 0)
-#endif /* CONFIG_SMP */
-
-#define kenter(FMT, ...) \
- printk(KERN_DEBUG "-->%s(" FMT ")\n", __func__, ##__VA_ARGS__)
-#define _enter(FMT, ...) \
- no_printk(KERN_DEBUG "-->%s(" FMT ")\n", __func__, ##__VA_ARGS__)
-#define kdebug(FMT, ...) \
- printk(KERN_DEBUG "--- " FMT "\n", ##__VA_ARGS__)
-#define _debug(FMT, ...) \
- no_printk(KERN_DEBUG "--- " FMT "\n", ##__VA_ARGS__)
-#define kproto(FMT, ...) \
- printk(KERN_DEBUG "### MNSERIAL " FMT " ###\n", ##__VA_ARGS__)
-#define _proto(FMT, ...) \
- no_printk(KERN_DEBUG "### MNSERIAL " FMT " ###\n", ##__VA_ARGS__)
-
-#ifndef CODMSB
-/* c_cflag bit meaning */
-#define CODMSB 004000000000 /* change Transfer bit-order */
-#endif
-
-#define NR_UARTS 3
-
-#ifdef CONFIG_MN10300_TTYSM_CONSOLE
-static void mn10300_serial_console_write(struct console *co,
- const char *s, unsigned count);
-static int __init mn10300_serial_console_setup(struct console *co,
- char *options);
-
-static struct uart_driver mn10300_serial_driver;
-static struct console mn10300_serial_console = {
- .name = "ttySM",
- .write = mn10300_serial_console_write,
- .device = uart_console_device,
- .setup = mn10300_serial_console_setup,
- .flags = CON_PRINTBUFFER,
- .index = -1,
- .data = &mn10300_serial_driver,
-};
-#endif
-
-static struct uart_driver mn10300_serial_driver = {
- .owner = NULL,
- .driver_name = "mn10300-serial",
- .dev_name = "ttySM",
- .major = TTY_MAJOR,
- .minor = 128,
- .nr = NR_UARTS,
-#ifdef CONFIG_MN10300_TTYSM_CONSOLE
- .cons = &mn10300_serial_console,
-#endif
-};
-
-static unsigned int mn10300_serial_tx_empty(struct uart_port *);
-static void mn10300_serial_set_mctrl(struct uart_port *, unsigned int mctrl);
-static unsigned int mn10300_serial_get_mctrl(struct uart_port *);
-static void mn10300_serial_stop_tx(struct uart_port *);
-static void mn10300_serial_start_tx(struct uart_port *);
-static void mn10300_serial_send_xchar(struct uart_port *, char ch);
-static void mn10300_serial_stop_rx(struct uart_port *);
-static void mn10300_serial_enable_ms(struct uart_port *);
-static void mn10300_serial_break_ctl(struct uart_port *, int ctl);
-static int mn10300_serial_startup(struct uart_port *);
-static void mn10300_serial_shutdown(struct uart_port *);
-static void mn10300_serial_set_termios(struct uart_port *,
- struct ktermios *new,
- struct ktermios *old);
-static const char *mn10300_serial_type(struct uart_port *);
-static void mn10300_serial_release_port(struct uart_port *);
-static int mn10300_serial_request_port(struct uart_port *);
-static void mn10300_serial_config_port(struct uart_port *, int);
-static int mn10300_serial_verify_port(struct uart_port *,
- struct serial_struct *);
-#ifdef CONFIG_CONSOLE_POLL
-static void mn10300_serial_poll_put_char(struct uart_port *, unsigned char);
-static int mn10300_serial_poll_get_char(struct uart_port *);
-#endif
-
-static const struct uart_ops mn10300_serial_ops = {
- .tx_empty = mn10300_serial_tx_empty,
- .set_mctrl = mn10300_serial_set_mctrl,
- .get_mctrl = mn10300_serial_get_mctrl,
- .stop_tx = mn10300_serial_stop_tx,
- .start_tx = mn10300_serial_start_tx,
- .send_xchar = mn10300_serial_send_xchar,
- .stop_rx = mn10300_serial_stop_rx,
- .enable_ms = mn10300_serial_enable_ms,
- .break_ctl = mn10300_serial_break_ctl,
- .startup = mn10300_serial_startup,
- .shutdown = mn10300_serial_shutdown,
- .set_termios = mn10300_serial_set_termios,
- .type = mn10300_serial_type,
- .release_port = mn10300_serial_release_port,
- .request_port = mn10300_serial_request_port,
- .config_port = mn10300_serial_config_port,
- .verify_port = mn10300_serial_verify_port,
-#ifdef CONFIG_CONSOLE_POLL
- .poll_put_char = mn10300_serial_poll_put_char,
- .poll_get_char = mn10300_serial_poll_get_char,
-#endif
-};
-
-static irqreturn_t mn10300_serial_interrupt(int irq, void *dev_id);
-
-/*
- * the first on-chip serial port: ttySM0 (aka SIF0)
- */
-#ifdef CONFIG_MN10300_TTYSM0
-struct mn10300_serial_port mn10300_serial_port_sif0 = {
- .uart.ops = &mn10300_serial_ops,
- .uart.membase = (void __iomem *) &SC0CTR,
- .uart.mapbase = (unsigned long) &SC0CTR,
- .uart.iotype = UPIO_MEM,
- .uart.irq = 0,
- .uart.uartclk = 0, /* MN10300_IOCLK, */
- .uart.fifosize = 1,
- .uart.flags = UPF_BOOT_AUTOCONF,
- .uart.line = 0,
- .uart.type = PORT_MN10300,
- .uart.lock =
- __SPIN_LOCK_UNLOCKED(mn10300_serial_port_sif0.uart.lock),
- .name = "ttySM0",
- ._iobase = &SC0CTR,
- ._control = &SC0CTR,
- ._status = (volatile u8 *)&SC0STR,
- ._intr = &SC0ICR,
- ._rxb = &SC0RXB,
- ._txb = &SC0TXB,
- .rx_name = "ttySM0:Rx",
- .tx_name = "ttySM0:Tx",
-#if defined(CONFIG_MN10300_TTYSM0_TIMER8)
- .tm_name = "ttySM0:Timer8",
- ._tmxmd = &TM8MD,
- ._tmxbr = &TM8BR,
- ._tmicr = &TM8ICR,
- .tm_irq = TM8IRQ,
- .div_timer = MNSCx_DIV_TIMER_16BIT,
-#elif defined(CONFIG_MN10300_TTYSM0_TIMER0)
- .tm_name = "ttySM0:Timer0",
- ._tmxmd = &TM0MD,
- ._tmxbr = (volatile u16 *)&TM0BR,
- ._tmicr = &TM0ICR,
- .tm_irq = TM0IRQ,
- .div_timer = MNSCx_DIV_TIMER_8BIT,
-#elif defined(CONFIG_MN10300_TTYSM0_TIMER2)
- .tm_name = "ttySM0:Timer2",
- ._tmxmd = &TM2MD,
- ._tmxbr = (volatile u16 *)&TM2BR,
- ._tmicr = &TM2ICR,
- .tm_irq = TM2IRQ,
- .div_timer = MNSCx_DIV_TIMER_8BIT,
-#else
-#error "Unknown config for ttySM0"
-#endif
- .rx_irq = SC0RXIRQ,
- .tx_irq = SC0TXIRQ,
- .rx_icr = &GxICR(SC0RXIRQ),
- .tx_icr = &GxICR(SC0TXIRQ),
- .clock_src = MNSCx_CLOCK_SRC_IOCLK,
- .options = 0,
-#ifdef CONFIG_GDBSTUB_ON_TTYSM0
- .gdbstub = 1,
-#endif
-};
-#endif /* CONFIG_MN10300_TTYSM0 */
-
-/*
- * the second on-chip serial port: ttySM1 (aka SIF1)
- */
-#ifdef CONFIG_MN10300_TTYSM1
-struct mn10300_serial_port mn10300_serial_port_sif1 = {
- .uart.ops = &mn10300_serial_ops,
- .uart.membase = (void __iomem *) &SC1CTR,
- .uart.mapbase = (unsigned long) &SC1CTR,
- .uart.iotype = UPIO_MEM,
- .uart.irq = 0,
- .uart.uartclk = 0, /* MN10300_IOCLK, */
- .uart.fifosize = 1,
- .uart.flags = UPF_BOOT_AUTOCONF,
- .uart.line = 1,
- .uart.type = PORT_MN10300,
- .uart.lock =
- __SPIN_LOCK_UNLOCKED(mn10300_serial_port_sif1.uart.lock),
- .name = "ttySM1",
- ._iobase = &SC1CTR,
- ._control = &SC1CTR,
- ._status = (volatile u8 *)&SC1STR,
- ._intr = &SC1ICR,
- ._rxb = &SC1RXB,
- ._txb = &SC1TXB,
- .rx_name = "ttySM1:Rx",
- .tx_name = "ttySM1:Tx",
-#if defined(CONFIG_MN10300_TTYSM1_TIMER9)
- .tm_name = "ttySM1:Timer9",
- ._tmxmd = &TM9MD,
- ._tmxbr = &TM9BR,
- ._tmicr = &TM9ICR,
- .tm_irq = TM9IRQ,
- .div_timer = MNSCx_DIV_TIMER_16BIT,
-#elif defined(CONFIG_MN10300_TTYSM1_TIMER3)
- .tm_name = "ttySM1:Timer3",
- ._tmxmd = &TM3MD,
- ._tmxbr = (volatile u16 *)&TM3BR,
- ._tmicr = &TM3ICR,
- .tm_irq = TM3IRQ,
- .div_timer = MNSCx_DIV_TIMER_8BIT,
-#elif defined(CONFIG_MN10300_TTYSM1_TIMER12)
- .tm_name = "ttySM1/Timer12",
- ._tmxmd = &TM12MD,
- ._tmxbr = &TM12BR,
- ._tmicr = &TM12ICR,
- .tm_irq = TM12IRQ,
- .div_timer = MNSCx_DIV_TIMER_16BIT,
-#else
-#error "Unknown config for ttySM1"
-#endif
- .rx_irq = SC1RXIRQ,
- .tx_irq = SC1TXIRQ,
- .rx_icr = &GxICR(SC1RXIRQ),
- .tx_icr = &GxICR(SC1TXIRQ),
- .clock_src = MNSCx_CLOCK_SRC_IOCLK,
- .options = 0,
-#ifdef CONFIG_GDBSTUB_ON_TTYSM1
- .gdbstub = 1,
-#endif
-};
-#endif /* CONFIG_MN10300_TTYSM1 */
-
-/*
- * the third on-chip serial port: ttySM2 (aka SIF2)
- */
-#ifdef CONFIG_MN10300_TTYSM2
-struct mn10300_serial_port mn10300_serial_port_sif2 = {
- .uart.ops = &mn10300_serial_ops,
- .uart.membase = (void __iomem *) &SC2CTR,
- .uart.mapbase = (unsigned long) &SC2CTR,
- .uart.iotype = UPIO_MEM,
- .uart.irq = 0,
- .uart.uartclk = 0, /* MN10300_IOCLK, */
- .uart.fifosize = 1,
- .uart.flags = UPF_BOOT_AUTOCONF,
- .uart.line = 2,
-#ifdef CONFIG_MN10300_TTYSM2_CTS
- .uart.type = PORT_MN10300_CTS,
-#else
- .uart.type = PORT_MN10300,
-#endif
- .uart.lock =
- __SPIN_LOCK_UNLOCKED(mn10300_serial_port_sif2.uart.lock),
- .name = "ttySM2",
- ._iobase = &SC2CTR,
- ._control = &SC2CTR,
- ._status = (volatile u8 *)&SC2STR,
- ._intr = &SC2ICR,
- ._rxb = &SC2RXB,
- ._txb = &SC2TXB,
- .rx_name = "ttySM2:Rx",
- .tx_name = "ttySM2:Tx",
-#if defined(CONFIG_MN10300_TTYSM2_TIMER10)
- .tm_name = "ttySM2/Timer10",
- ._tmxmd = &TM10MD,
- ._tmxbr = &TM10BR,
- ._tmicr = &TM10ICR,
- .tm_irq = TM10IRQ,
- .div_timer = MNSCx_DIV_TIMER_16BIT,
-#elif defined(CONFIG_MN10300_TTYSM2_TIMER9)
- .tm_name = "ttySM2/Timer9",
- ._tmxmd = &TM9MD,
- ._tmxbr = &TM9BR,
- ._tmicr = &TM9ICR,
- .tm_irq = TM9IRQ,
- .div_timer = MNSCx_DIV_TIMER_16BIT,
-#elif defined(CONFIG_MN10300_TTYSM2_TIMER1)
- .tm_name = "ttySM2/Timer1",
- ._tmxmd = &TM1MD,
- ._tmxbr = (volatile u16 *)&TM1BR,
- ._tmicr = &TM1ICR,
- .tm_irq = TM1IRQ,
- .div_timer = MNSCx_DIV_TIMER_8BIT,
-#elif defined(CONFIG_MN10300_TTYSM2_TIMER3)
- .tm_name = "ttySM2/Timer3",
- ._tmxmd = &TM3MD,
- ._tmxbr = (volatile u16 *)&TM3BR,
- ._tmicr = &TM3ICR,
- .tm_irq = TM3IRQ,
- .div_timer = MNSCx_DIV_TIMER_8BIT,
-#else
-#error "Unknown config for ttySM2"
-#endif
- .rx_irq = SC2RXIRQ,
- .tx_irq = SC2TXIRQ,
- .rx_icr = &GxICR(SC2RXIRQ),
- .tx_icr = &GxICR(SC2TXIRQ),
- .clock_src = MNSCx_CLOCK_SRC_IOCLK,
-#ifdef CONFIG_MN10300_TTYSM2_CTS
- .options = MNSCx_OPT_CTS,
-#else
- .options = 0,
-#endif
-#ifdef CONFIG_GDBSTUB_ON_TTYSM2
- .gdbstub = 1,
-#endif
-};
-#endif /* CONFIG_MN10300_TTYSM2 */
-
-
-/*
- * list of available serial ports
- */
-struct mn10300_serial_port *mn10300_serial_ports[NR_UARTS + 1] = {
-#ifdef CONFIG_MN10300_TTYSM0
- [0] = &mn10300_serial_port_sif0,
-#endif
-#ifdef CONFIG_MN10300_TTYSM1
- [1] = &mn10300_serial_port_sif1,
-#endif
-#ifdef CONFIG_MN10300_TTYSM2
- [2] = &mn10300_serial_port_sif2,
-#endif
- [NR_UARTS] = NULL,
-};
-
-
-/*
- * we abuse the serial ports' baud timers' interrupt lines to get the ability
- * to deliver interrupts to userspace as we use the ports' interrupt lines to
- * do virtual DMA on account of the ports having no hardware FIFOs
- *
- * we can generate an interrupt manually in the assembly stubs by writing to
- * the enable and detect bits in the interrupt control register, so all we need
- * to do here is disable the interrupt line
- *
- * note that we can't just leave the line enabled as the baud rate timer *also*
- * generates interrupts
- */
-static void mn10300_serial_mask_ack(unsigned int irq)
-{
- unsigned long flags;
- u16 tmp;
-
- flags = arch_local_cli_save();
- GxICR(irq) = GxICR_LEVEL_6;
- tmp = GxICR(irq); /* flush write buffer */
- arch_local_irq_restore(flags);
-}
-
-static void mn10300_serial_chip_mask_ack(struct irq_data *d)
-{
- mn10300_serial_mask_ack(d->irq);
-}
-
-static void mn10300_serial_nop(struct irq_data *d)
-{
-}
-
-static struct irq_chip mn10300_serial_pic = {
- .name = "mnserial",
- .irq_ack = mn10300_serial_chip_mask_ack,
- .irq_mask = mn10300_serial_chip_mask_ack,
- .irq_mask_ack = mn10300_serial_chip_mask_ack,
- .irq_unmask = mn10300_serial_nop,
-};
-
-static void mn10300_serial_low_mask(struct irq_data *d)
-{
- unsigned long flags;
- u16 tmp;
-
- flags = arch_local_cli_save();
- GxICR(d->irq) = NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL);
- tmp = GxICR(d->irq); /* flush write buffer */
- arch_local_irq_restore(flags);
-}
-
-static void mn10300_serial_low_unmask(struct irq_data *d)
-{
- unsigned long flags;
- u16 tmp;
-
- flags = arch_local_cli_save();
- GxICR(d->irq) =
- NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL) | GxICR_ENABLE;
- tmp = GxICR(d->irq); /* flush write buffer */
- arch_local_irq_restore(flags);
-}
-
-static struct irq_chip mn10300_serial_low_pic = {
- .name = "mnserial-low",
- .irq_mask = mn10300_serial_low_mask,
- .irq_unmask = mn10300_serial_low_unmask,
-};
-
-/*
- * serial virtual DMA interrupt jump table
- */
-struct mn10300_serial_int mn10300_serial_int_tbl[NR_IRQS];
-
-static void mn10300_serial_dis_tx_intr(struct mn10300_serial_port *port)
-{
- int retries = 100;
- u16 x;
-
- /* nothing to do if irq isn't set up */
- if (!mn10300_serial_int_tbl[port->tx_irq].port)
- return;
-
- port->tx_flags |= MNSCx_TX_STOP;
- mb();
-
- /*
- * Here we wait for the irq to be disabled. Either it already is
- * disabled or we wait some number of retries for the VDMA handler
- * to disable it. The retries give the VDMA handler enough time to
- * run to completion if it was already in progress. If the VDMA IRQ
- * is enabled but the handler is not yet running when arrive here,
- * the STOP flag will prevent the handler from conflicting with the
- * driver code following this loop.
- */
- while ((*port->tx_icr & GxICR_ENABLE) && retries-- > 0)
- ;
- if (retries <= 0) {
- *port->tx_icr =
- NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL);
- x = *port->tx_icr;
- }
-}
-
-static void mn10300_serial_en_tx_intr(struct mn10300_serial_port *port)
-{
- u16 x;
-
- /* nothing to do if irq isn't set up */
- if (!mn10300_serial_int_tbl[port->tx_irq].port)
- return;
-
- /* stop vdma irq if not already stopped */
- if (!(port->tx_flags & MNSCx_TX_STOP))
- mn10300_serial_dis_tx_intr(port);
-
- port->tx_flags &= ~MNSCx_TX_STOP;
- mb();
-
- *port->tx_icr =
- NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL) |
- GxICR_ENABLE | GxICR_REQUEST | GxICR_DETECT;
- x = *port->tx_icr;
-}
-
-static void mn10300_serial_dis_rx_intr(struct mn10300_serial_port *port)
-{
- unsigned long flags;
- u16 x;
-
- flags = arch_local_cli_save();
- *port->rx_icr = NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL);
- x = *port->rx_icr;
- arch_local_irq_restore(flags);
-}
-
-/*
- * multi-bit equivalent of test_and_clear_bit()
- */
-static int mask_test_and_clear(volatile u8 *ptr, u8 mask)
-{
- u32 epsw;
- asm volatile(" bclr %1,(%2) \n"
- " mov epsw,%0 \n"
- : "=d"(epsw) : "d"(mask), "a"(ptr)
- : "cc", "memory");
- return !(epsw & EPSW_FLAG_Z);
-}
-
-/*
- * receive chars from the ring buffer for this serial port
- * - must do break detection here (not done in the UART)
- */
-static void mn10300_serial_receive_interrupt(struct mn10300_serial_port *port)
-{
- struct uart_icount *icount = &port->uart.icount;
- struct tty_port *tport = &port->uart.state->port;
- unsigned ix;
- int count;
- u8 st, ch, push, status, overrun;
-
- _enter("%s", port->name);
-
- push = 0;
-
- count = CIRC_CNT(port->rx_inp, port->rx_outp, MNSC_BUFFER_SIZE);
- count = tty_buffer_request_room(tport, count);
- if (count == 0) {
- if (!tport->low_latency)
- tty_flip_buffer_push(tport);
- return;
- }
-
-try_again:
- /* pull chars out of the hat */
- ix = READ_ONCE(port->rx_outp);
- if (CIRC_CNT(port->rx_inp, ix, MNSC_BUFFER_SIZE) == 0) {
- if (push && !tport->low_latency)
- tty_flip_buffer_push(tport);
- return;
- }
-
- /* READ_ONCE() enforces dependency, but dangerous through integer!!! */
- ch = port->rx_buffer[ix++];
- st = port->rx_buffer[ix++];
- smp_mb();
- port->rx_outp = ix & (MNSC_BUFFER_SIZE - 1);
- port->uart.icount.rx++;
-
- st &= SC01STR_FEF | SC01STR_PEF | SC01STR_OEF;
- status = 0;
- overrun = 0;
-
- /* the UART doesn't detect BREAK, so we have to do that ourselves
- * - it starts as a framing error on a NUL character
- * - then we count another two NUL characters before issuing TTY_BREAK
- * - then we end on a normal char or one that has all the bottom bits
- * zero and the top bits set
- */
- switch (port->rx_brk) {
- case 0:
- /* not breaking at the moment */
- break;
-
- case 1:
- if (st & SC01STR_FEF && ch == 0) {
- port->rx_brk = 2;
- goto try_again;
- }
- goto not_break;
-
- case 2:
- if (st & SC01STR_FEF && ch == 0) {
- port->rx_brk = 3;
- _proto("Rx Break Detected");
- icount->brk++;
- if (uart_handle_break(&port->uart))
- goto ignore_char;
- status |= 1 << TTY_BREAK;
- goto insert;
- }
- goto not_break;
-
- default:
- if (st & (SC01STR_FEF | SC01STR_PEF | SC01STR_OEF))
- goto try_again; /* still breaking */
-
- port->rx_brk = 0; /* end of the break */
-
- switch (ch) {
- case 0xFF:
- case 0xFE:
- case 0xFC:
- case 0xF8:
- case 0xF0:
- case 0xE0:
- case 0xC0:
- case 0x80:
- case 0x00:
- /* discard char at probable break end */
- goto try_again;
- }
- break;
- }
-
-process_errors:
- /* handle framing error */
- if (st & SC01STR_FEF) {
- if (ch == 0) {
- /* framing error with NUL char is probably a BREAK */
- port->rx_brk = 1;
- goto try_again;
- }
-
- _proto("Rx Framing Error");
- icount->frame++;
- status |= 1 << TTY_FRAME;
- }
-
- /* handle parity error */
- if (st & SC01STR_PEF) {
- _proto("Rx Parity Error");
- icount->parity++;
- status = TTY_PARITY;
- }
-
- /* handle normal char */
- if (status == 0) {
- if (uart_handle_sysrq_char(&port->uart, ch))
- goto ignore_char;
- status = (1 << TTY_NORMAL);
- }
-
- /* handle overrun error */
- if (st & SC01STR_OEF) {
- if (port->rx_brk)
- goto try_again;
-
- _proto("Rx Overrun Error");
- icount->overrun++;
- overrun = 1;
- }
-
-insert:
- status &= port->uart.read_status_mask;
-
- if (!overrun && !(status & port->uart.ignore_status_mask)) {
- int flag;
-
- if (status & (1 << TTY_BREAK))
- flag = TTY_BREAK;
- else if (status & (1 << TTY_PARITY))
- flag = TTY_PARITY;
- else if (status & (1 << TTY_FRAME))
- flag = TTY_FRAME;
- else
- flag = TTY_NORMAL;
-
- tty_insert_flip_char(tport, ch, flag);
- }
-
- /* overrun is special, since it's reported immediately, and doesn't
- * affect the current character
- */
- if (overrun)
- tty_insert_flip_char(tport, 0, TTY_OVERRUN);
-
- count--;
- if (count <= 0) {
- if (!tport->low_latency)
- tty_flip_buffer_push(tport);
- return;
- }
-
-ignore_char:
- push = 1;
- goto try_again;
-
-not_break:
- port->rx_brk = 0;
- goto process_errors;
-}
-
-/*
- * handle an interrupt from the serial transmission "virtual DMA" driver
- * - note: the interrupt routine will disable its own interrupts when the Tx
- * buffer is empty
- */
-static void mn10300_serial_transmit_interrupt(struct mn10300_serial_port *port)
-{
- _enter("%s", port->name);
-
- if (!port->uart.state || !port->uart.state->port.tty) {
- mn10300_serial_dis_tx_intr(port);
- return;
- }
-
- if (uart_tx_stopped(&port->uart) ||
- uart_circ_empty(&port->uart.state->xmit))
- mn10300_serial_dis_tx_intr(port);
-
- if (uart_circ_chars_pending(&port->uart.state->xmit) < WAKEUP_CHARS)
- uart_write_wakeup(&port->uart);
-}
-
-/*
- * deal with a change in the status of the CTS line
- */
-static void mn10300_serial_cts_changed(struct mn10300_serial_port *port, u8 st)
-{
- u16 ctr;
-
- port->tx_cts = st;
- port->uart.icount.cts++;
-
- /* flip the CTS state selector flag to interrupt when it changes
- * back */
- ctr = *port->_control;
- ctr ^= SC2CTR_TWS;
- *port->_control = ctr;
-
- uart_handle_cts_change(&port->uart, st & SC2STR_CTS);
- wake_up_interruptible(&port->uart.state->port.delta_msr_wait);
-}
-
-/*
- * handle a virtual interrupt generated by the lower level "virtual DMA"
- * routines (irq is the baud timer interrupt)
- */
-static irqreturn_t mn10300_serial_interrupt(int irq, void *dev_id)
-{
- struct mn10300_serial_port *port = dev_id;
- u8 st;
-
- spin_lock(&port->uart.lock);
-
- if (port->intr_flags) {
- _debug("INT %s: %x", port->name, port->intr_flags);
-
- if (mask_test_and_clear(&port->intr_flags, MNSCx_RX_AVAIL))
- mn10300_serial_receive_interrupt(port);
-
- if (mask_test_and_clear(&port->intr_flags,
- MNSCx_TX_SPACE | MNSCx_TX_EMPTY))
- mn10300_serial_transmit_interrupt(port);
- }
-
- /* the only modem control line amongst the whole lot is CTS on
- * serial port 2 */
- if (port->type == PORT_MN10300_CTS) {
- st = *port->_status;
- if ((port->tx_cts ^ st) & SC2STR_CTS)
- mn10300_serial_cts_changed(port, st);
- }
-
- spin_unlock(&port->uart.lock);
-
- return IRQ_HANDLED;
-}
-
-/*
- * return indication of whether the hardware transmit buffer is empty
- */
-static unsigned int mn10300_serial_tx_empty(struct uart_port *_port)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
-
- _enter("%s", port->name);
-
- return (*port->_status & (SC01STR_TXF | SC01STR_TBF)) ?
- 0 : TIOCSER_TEMT;
-}
-
-/*
- * set the modem control lines (we don't have any)
- */
-static void mn10300_serial_set_mctrl(struct uart_port *_port,
- unsigned int mctrl)
-{
- struct mn10300_serial_port *port __attribute__ ((unused)) =
- container_of(_port, struct mn10300_serial_port, uart);
-
- _enter("%s,%x", port->name, mctrl);
-}
-
-/*
- * get the modem control line statuses
- */
-static unsigned int mn10300_serial_get_mctrl(struct uart_port *_port)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
-
- _enter("%s", port->name);
-
- if (port->type == PORT_MN10300_CTS && !(*port->_status & SC2STR_CTS))
- return TIOCM_CAR | TIOCM_DSR;
-
- return TIOCM_CAR | TIOCM_CTS | TIOCM_DSR;
-}
-
-/*
- * stop transmitting characters
- */
-static void mn10300_serial_stop_tx(struct uart_port *_port)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
-
- _enter("%s", port->name);
-
- /* disable the virtual DMA */
- mn10300_serial_dis_tx_intr(port);
-}
-
-/*
- * start transmitting characters
- * - jump-start transmission if it has stalled
- * - enable the serial Tx interrupt (used by the virtual DMA controller)
- * - force an interrupt to happen if necessary
- */
-static void mn10300_serial_start_tx(struct uart_port *_port)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
-
- _enter("%s{%lu}",
- port->name,
- CIRC_CNT(&port->uart.state->xmit.head,
- &port->uart.state->xmit.tail,
- UART_XMIT_SIZE));
-
- /* kick the virtual DMA controller */
- mn10300_serial_en_tx_intr(port);
-
- _debug("CTR=%04hx ICR=%02hx STR=%04x TMD=%02hx TBR=%04hx ICR=%04hx",
- *port->_control, *port->_intr, *port->_status,
- *port->_tmxmd,
- (port->div_timer == MNSCx_DIV_TIMER_8BIT) ?
- *(volatile u8 *)port->_tmxbr : *port->_tmxbr,
- *port->tx_icr);
-}
-
-/*
- * transmit a high-priority XON/XOFF character
- */
-static void mn10300_serial_send_xchar(struct uart_port *_port, char ch)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
- unsigned long flags;
-
- _enter("%s,%02x", port->name, ch);
-
- if (likely(port->gdbstub)) {
- port->tx_xchar = ch;
- if (ch) {
- spin_lock_irqsave(&port->uart.lock, flags);
- mn10300_serial_en_tx_intr(port);
- spin_unlock_irqrestore(&port->uart.lock, flags);
- }
- }
-}
-
-/*
- * stop receiving characters
- * - called whilst the port is being closed
- */
-static void mn10300_serial_stop_rx(struct uart_port *_port)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
-
- u16 ctr;
-
- _enter("%s", port->name);
-
- ctr = *port->_control;
- ctr &= ~SC01CTR_RXE;
- *port->_control = ctr;
-
- mn10300_serial_dis_rx_intr(port);
-}
-
-/*
- * enable modem status interrupts
- */
-static void mn10300_serial_enable_ms(struct uart_port *_port)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
-
- u16 ctr, cts;
-
- _enter("%s", port->name);
-
- if (port->type == PORT_MN10300_CTS) {
- /* want to interrupt when CTS goes low if CTS is now high and
- * vice versa
- */
- port->tx_cts = *port->_status;
-
- cts = (port->tx_cts & SC2STR_CTS) ?
- SC2CTR_TWE : SC2CTR_TWE | SC2CTR_TWS;
-
- ctr = *port->_control;
- ctr &= ~SC2CTR_TWS;
- ctr |= cts;
- *port->_control = ctr;
-
- mn10300_serial_en_tx_intr(port);
- }
-}
-
-/*
- * transmit or cease transmitting a break signal
- */
-static void mn10300_serial_break_ctl(struct uart_port *_port, int ctl)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
- unsigned long flags;
-
- _enter("%s,%d", port->name, ctl);
-
- spin_lock_irqsave(&port->uart.lock, flags);
- if (ctl) {
- /* tell the virtual DMA handler to assert BREAK */
- port->tx_flags |= MNSCx_TX_BREAK;
- mn10300_serial_en_tx_intr(port);
- } else {
- port->tx_flags &= ~MNSCx_TX_BREAK;
- *port->_control &= ~SC01CTR_BKE;
- mn10300_serial_en_tx_intr(port);
- }
- spin_unlock_irqrestore(&port->uart.lock, flags);
-}
-
-/*
- * grab the interrupts and enable the port for reception
- */
-static int mn10300_serial_startup(struct uart_port *_port)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
- struct mn10300_serial_int *pint;
-
- _enter("%s{%d}", port->name, port->gdbstub);
-
- if (unlikely(port->gdbstub))
- return -EBUSY;
-
- /* allocate an Rx buffer for the virtual DMA handler */
- port->rx_buffer = kmalloc(MNSC_BUFFER_SIZE, GFP_KERNEL);
- if (!port->rx_buffer)
- return -ENOMEM;
-
- port->rx_inp = port->rx_outp = 0;
- port->tx_flags = 0;
-
- /* finally, enable the device */
- *port->_intr = SC01ICR_TI;
- *port->_control |= SC01CTR_TXE | SC01CTR_RXE;
-
- pint = &mn10300_serial_int_tbl[port->rx_irq];
- pint->port = port;
- pint->vdma = mn10300_serial_vdma_rx_handler;
- pint = &mn10300_serial_int_tbl[port->tx_irq];
- pint->port = port;
- pint->vdma = mn10300_serial_vdma_tx_handler;
-
- irq_set_chip(port->rx_irq, &mn10300_serial_low_pic);
- irq_set_chip(port->tx_irq, &mn10300_serial_low_pic);
- irq_set_chip(port->tm_irq, &mn10300_serial_pic);
-
- if (request_irq(port->rx_irq, mn10300_serial_interrupt,
- IRQF_NOBALANCING,
- port->rx_name, port) < 0)
- goto error;
-
- if (request_irq(port->tx_irq, mn10300_serial_interrupt,
- IRQF_NOBALANCING,
- port->tx_name, port) < 0)
- goto error2;
-
- if (request_irq(port->tm_irq, mn10300_serial_interrupt,
- IRQF_NOBALANCING,
- port->tm_name, port) < 0)
- goto error3;
- mn10300_serial_mask_ack(port->tm_irq);
-
- return 0;
-
-error3:
- free_irq(port->tx_irq, port);
-error2:
- free_irq(port->rx_irq, port);
-error:
- kfree(port->rx_buffer);
- port->rx_buffer = NULL;
- return -EBUSY;
-}
-
-/*
- * shutdown the port and release interrupts
- */
-static void mn10300_serial_shutdown(struct uart_port *_port)
-{
- unsigned long flags;
- u16 x;
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
-
- _enter("%s", port->name);
-
- spin_lock_irqsave(&_port->lock, flags);
- mn10300_serial_dis_tx_intr(port);
-
- *port->rx_icr = NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL);
- x = *port->rx_icr;
- port->tx_flags = 0;
- spin_unlock_irqrestore(&_port->lock, flags);
-
- /* disable the serial port and its baud rate timer */
- *port->_control &= ~(SC01CTR_TXE | SC01CTR_RXE | SC01CTR_BKE);
- *port->_tmxmd = 0;
-
- if (port->rx_buffer) {
- void *buf = port->rx_buffer;
- port->rx_buffer = NULL;
- kfree(buf);
- }
-
- /* disable all intrs */
- free_irq(port->tm_irq, port);
- free_irq(port->rx_irq, port);
- free_irq(port->tx_irq, port);
-
- mn10300_serial_int_tbl[port->tx_irq].port = NULL;
- mn10300_serial_int_tbl[port->rx_irq].port = NULL;
-}
-
-/*
- * this routine is called to set the UART divisor registers to match the
- * specified baud rate for a serial port.
- */
-static void mn10300_serial_change_speed(struct mn10300_serial_port *port,
- struct ktermios *new,
- struct ktermios *old)
-{
- unsigned long flags;
- unsigned long ioclk = port->ioclk;
- unsigned cflag;
- int baud, bits, xdiv, tmp;
- u16 tmxbr, scxctr;
- u8 tmxmd, battempt;
- u8 div_timer = port->div_timer;
-
- _enter("%s{%lu}", port->name, ioclk);
-
- /* byte size and parity */
- cflag = new->c_cflag;
- switch (cflag & CSIZE) {
- case CS7: scxctr = SC01CTR_CLN_7BIT; bits = 9; break;
- case CS8: scxctr = SC01CTR_CLN_8BIT; bits = 10; break;
- default: scxctr = SC01CTR_CLN_8BIT; bits = 10; break;
- }
-
- if (cflag & CSTOPB) {
- scxctr |= SC01CTR_STB_2BIT;
- bits++;
- }
-
- if (cflag & PARENB) {
- bits++;
- if (cflag & PARODD)
- scxctr |= SC01CTR_PB_ODD;
-#ifdef CMSPAR
- else if (cflag & CMSPAR)
- scxctr |= SC01CTR_PB_FIXED0;
-#endif
- else
- scxctr |= SC01CTR_PB_EVEN;
- }
-
- /* Determine divisor based on baud rate */
- battempt = 0;
-
- switch (port->uart.line) {
-#ifdef CONFIG_MN10300_TTYSM0
- case 0: /* ttySM0 */
-#if defined(CONFIG_MN10300_TTYSM0_TIMER8)
- scxctr |= SC0CTR_CK_TM8UFLOW_8;
-#elif defined(CONFIG_MN10300_TTYSM0_TIMER0)
- scxctr |= SC0CTR_CK_TM0UFLOW_8;
-#elif defined(CONFIG_MN10300_TTYSM0_TIMER2)
- scxctr |= SC0CTR_CK_TM2UFLOW_8;
-#else
-#error "Unknown config for ttySM0"
-#endif
- break;
-#endif /* CONFIG_MN10300_TTYSM0 */
-
-#ifdef CONFIG_MN10300_TTYSM1
- case 1: /* ttySM1 */
-#if defined(CONFIG_AM33_2) || defined(CONFIG_AM33_3)
-#if defined(CONFIG_MN10300_TTYSM1_TIMER9)
- scxctr |= SC1CTR_CK_TM9UFLOW_8;
-#elif defined(CONFIG_MN10300_TTYSM1_TIMER3)
- scxctr |= SC1CTR_CK_TM3UFLOW_8;
-#else
-#error "Unknown config for ttySM1"
-#endif
-#else /* CONFIG_AM33_2 || CONFIG_AM33_3 */
-#if defined(CONFIG_MN10300_TTYSM1_TIMER12)
- scxctr |= SC1CTR_CK_TM12UFLOW_8;
-#else
-#error "Unknown config for ttySM1"
-#endif
-#endif /* CONFIG_AM33_2 || CONFIG_AM33_3 */
- break;
-#endif /* CONFIG_MN10300_TTYSM1 */
-
-#ifdef CONFIG_MN10300_TTYSM2
- case 2: /* ttySM2 */
-#if defined(CONFIG_AM33_2)
-#if defined(CONFIG_MN10300_TTYSM2_TIMER10)
- scxctr |= SC2CTR_CK_TM10UFLOW;
-#else
-#error "Unknown config for ttySM2"
-#endif
-#else /* CONFIG_AM33_2 */
-#if defined(CONFIG_MN10300_TTYSM2_TIMER9)
- scxctr |= SC2CTR_CK_TM9UFLOW_8;
-#elif defined(CONFIG_MN10300_TTYSM2_TIMER1)
- scxctr |= SC2CTR_CK_TM1UFLOW_8;
-#elif defined(CONFIG_MN10300_TTYSM2_TIMER3)
- scxctr |= SC2CTR_CK_TM3UFLOW_8;
-#else
-#error "Unknown config for ttySM2"
-#endif
-#endif /* CONFIG_AM33_2 */
- break;
-#endif /* CONFIG_MN10300_TTYSM2 */
-
- default:
- break;
- }
-
-try_alternative:
- baud = uart_get_baud_rate(&port->uart, new, old, 0,
- port->ioclk / 8);
-
- _debug("ALT %d [baud %d]", battempt, baud);
-
- if (!baud)
- baud = 9600; /* B0 transition handled in rs_set_termios */
- xdiv = 1;
- if (baud == 134) {
- baud = 269; /* 134 is really 134.5 */
- xdiv = 2;
- }
-
- if (baud == 38400 &&
- (port->uart.flags & UPF_SPD_MASK) == UPF_SPD_CUST
- ) {
- _debug("CUSTOM %u", port->uart.custom_divisor);
-
- if (div_timer == MNSCx_DIV_TIMER_16BIT) {
- if (port->uart.custom_divisor <= 65535) {
- tmxmd = TM8MD_SRC_IOCLK;
- tmxbr = port->uart.custom_divisor;
- port->uart.uartclk = ioclk;
- goto timer_okay;
- }
- if (port->uart.custom_divisor / 8 <= 65535) {
- tmxmd = TM8MD_SRC_IOCLK_8;
- tmxbr = port->uart.custom_divisor / 8;
- port->uart.custom_divisor = tmxbr * 8;
- port->uart.uartclk = ioclk / 8;
- goto timer_okay;
- }
- if (port->uart.custom_divisor / 32 <= 65535) {
- tmxmd = TM8MD_SRC_IOCLK_32;
- tmxbr = port->uart.custom_divisor / 32;
- port->uart.custom_divisor = tmxbr * 32;
- port->uart.uartclk = ioclk / 32;
- goto timer_okay;
- }
-
- } else if (div_timer == MNSCx_DIV_TIMER_8BIT) {
- if (port->uart.custom_divisor <= 255) {
- tmxmd = TM2MD_SRC_IOCLK;
- tmxbr = port->uart.custom_divisor;
- port->uart.uartclk = ioclk;
- goto timer_okay;
- }
- if (port->uart.custom_divisor / 8 <= 255) {
- tmxmd = TM2MD_SRC_IOCLK_8;
- tmxbr = port->uart.custom_divisor / 8;
- port->uart.custom_divisor = tmxbr * 8;
- port->uart.uartclk = ioclk / 8;
- goto timer_okay;
- }
- if (port->uart.custom_divisor / 32 <= 255) {
- tmxmd = TM2MD_SRC_IOCLK_32;
- tmxbr = port->uart.custom_divisor / 32;
- port->uart.custom_divisor = tmxbr * 32;
- port->uart.uartclk = ioclk / 32;
- goto timer_okay;
- }
- }
- }
-
- switch (div_timer) {
- case MNSCx_DIV_TIMER_16BIT:
- port->uart.uartclk = ioclk;
- tmxmd = TM8MD_SRC_IOCLK;
- tmxbr = tmp = (ioclk / (baud * xdiv) + 4) / 8 - 1;
- if (tmp > 0 && tmp <= 65535)
- goto timer_okay;
-
- port->uart.uartclk = ioclk / 8;
- tmxmd = TM8MD_SRC_IOCLK_8;
- tmxbr = tmp = (ioclk / (baud * 8 * xdiv) + 4) / 8 - 1;
- if (tmp > 0 && tmp <= 65535)
- goto timer_okay;
-
- port->uart.uartclk = ioclk / 32;
- tmxmd = TM8MD_SRC_IOCLK_32;
- tmxbr = tmp = (ioclk / (baud * 32 * xdiv) + 4) / 8 - 1;
- if (tmp > 0 && tmp <= 65535)
- goto timer_okay;
- break;
-
- case MNSCx_DIV_TIMER_8BIT:
- port->uart.uartclk = ioclk;
- tmxmd = TM2MD_SRC_IOCLK;
- tmxbr = tmp = (ioclk / (baud * xdiv) + 4) / 8 - 1;
- if (tmp > 0 && tmp <= 255)
- goto timer_okay;
-
- port->uart.uartclk = ioclk / 8;
- tmxmd = TM2MD_SRC_IOCLK_8;
- tmxbr = tmp = (ioclk / (baud * 8 * xdiv) + 4) / 8 - 1;
- if (tmp > 0 && tmp <= 255)
- goto timer_okay;
-
- port->uart.uartclk = ioclk / 32;
- tmxmd = TM2MD_SRC_IOCLK_32;
- tmxbr = tmp = (ioclk / (baud * 32 * xdiv) + 4) / 8 - 1;
- if (tmp > 0 && tmp <= 255)
- goto timer_okay;
- break;
-
- default:
- BUG();
- return;
- }
-
- /* refuse to change to a baud rate we can't support */
- _debug("CAN'T SUPPORT");
-
- switch (battempt) {
- case 0:
- if (old) {
- new->c_cflag &= ~CBAUD;
- new->c_cflag |= (old->c_cflag & CBAUD);
- battempt = 1;
- goto try_alternative;
- }
-
- case 1:
- /* as a last resort, if the quotient is zero, default to 9600
- * bps */
- new->c_cflag &= ~CBAUD;
- new->c_cflag |= B9600;
- battempt = 2;
- goto try_alternative;
-
- default:
- /* hmmm... can't seem to support 9600 either
- * - we could try iterating through the speeds we know about to
- * find the lowest
- */
- new->c_cflag &= ~CBAUD;
- new->c_cflag |= B0;
-
- if (div_timer == MNSCx_DIV_TIMER_16BIT)
- tmxmd = TM8MD_SRC_IOCLK_32;
- else if (div_timer == MNSCx_DIV_TIMER_8BIT)
- tmxmd = TM2MD_SRC_IOCLK_32;
- tmxbr = 1;
-
- port->uart.uartclk = ioclk / 32;
- break;
- }
-timer_okay:
-
- _debug("UARTCLK: %u / %hu", port->uart.uartclk, tmxbr);
-
- /* make the changes */
- spin_lock_irqsave(&port->uart.lock, flags);
-
- uart_update_timeout(&port->uart, new->c_cflag, baud);
-
- /* set the timer to produce the required baud rate */
- switch (div_timer) {
- case MNSCx_DIV_TIMER_16BIT:
- *port->_tmxmd = 0;
- *port->_tmxbr = tmxbr;
- *port->_tmxmd = TM8MD_INIT_COUNTER;
- *port->_tmxmd = tmxmd | TM8MD_COUNT_ENABLE;
- break;
-
- case MNSCx_DIV_TIMER_8BIT:
- *port->_tmxmd = 0;
- *(volatile u8 *) port->_tmxbr = (u8) tmxbr;
- *port->_tmxmd = TM2MD_INIT_COUNTER;
- *port->_tmxmd = tmxmd | TM2MD_COUNT_ENABLE;
- break;
- }
-
- /* CTS flow control flag and modem status interrupts */
- scxctr &= ~(SC2CTR_TWE | SC2CTR_TWS);
-
- if (port->type == PORT_MN10300_CTS && cflag & CRTSCTS) {
- /* want to interrupt when CTS goes low if CTS is now
- * high and vice versa
- */
- port->tx_cts = *port->_status;
-
- if (port->tx_cts & SC2STR_CTS)
- scxctr |= SC2CTR_TWE;
- else
- scxctr |= SC2CTR_TWE | SC2CTR_TWS;
- }
-
- /* set up parity check flag */
- port->uart.read_status_mask = (1 << TTY_NORMAL) | (1 << TTY_OVERRUN);
- if (new->c_iflag & INPCK)
- port->uart.read_status_mask |=
- (1 << TTY_PARITY) | (1 << TTY_FRAME);
- if (new->c_iflag & (BRKINT | PARMRK))
- port->uart.read_status_mask |= (1 << TTY_BREAK);
-
- /* characters to ignore */
- port->uart.ignore_status_mask = 0;
- if (new->c_iflag & IGNPAR)
- port->uart.ignore_status_mask |=
- (1 << TTY_PARITY) | (1 << TTY_FRAME);
- if (new->c_iflag & IGNBRK) {
- port->uart.ignore_status_mask |= (1 << TTY_BREAK);
- /*
- * If we're ignoring parity and break indicators,
- * ignore overruns to (for real raw support).
- */
- if (new->c_iflag & IGNPAR)
- port->uart.ignore_status_mask |= (1 << TTY_OVERRUN);
- }
-
- /* Ignore all characters if CREAD is not set */
- if ((new->c_cflag & CREAD) == 0)
- port->uart.ignore_status_mask |= (1 << TTY_NORMAL);
-
- scxctr |= SC01CTR_TXE | SC01CTR_RXE;
- scxctr |= *port->_control & SC01CTR_BKE;
- *port->_control = scxctr;
-
- spin_unlock_irqrestore(&port->uart.lock, flags);
-}
-
-/*
- * set the terminal I/O parameters
- */
-static void mn10300_serial_set_termios(struct uart_port *_port,
- struct ktermios *new,
- struct ktermios *old)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
-
- _enter("%s,%p,%p", port->name, new, old);
-
- mn10300_serial_change_speed(port, new, old);
-
- /* handle turning off CRTSCTS */
- if (!(new->c_cflag & CRTSCTS)) {
- u16 ctr = *port->_control;
- ctr &= ~SC2CTR_TWE;
- *port->_control = ctr;
- }
-
- /* change Transfer bit-order (LSB/MSB) */
- if (new->c_cflag & CODMSB)
- *port->_control |= SC01CTR_OD_MSBFIRST; /* MSB MODE */
- else
- *port->_control &= ~SC01CTR_OD_MSBFIRST; /* LSB MODE */
-}
-
-/*
- * return description of port type
- */
-static const char *mn10300_serial_type(struct uart_port *_port)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
-
- if (port->uart.type == PORT_MN10300_CTS)
- return "MN10300 SIF_CTS";
-
- return "MN10300 SIF";
-}
-
-/*
- * release I/O and memory regions in use by port
- */
-static void mn10300_serial_release_port(struct uart_port *_port)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
-
- _enter("%s", port->name);
-
- release_mem_region((unsigned long) port->_iobase, 16);
-}
-
-/*
- * request I/O and memory regions for port
- */
-static int mn10300_serial_request_port(struct uart_port *_port)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
-
- _enter("%s", port->name);
-
- request_mem_region((unsigned long) port->_iobase, 16, port->name);
- return 0;
-}
-
-/*
- * configure the type and reserve the ports
- */
-static void mn10300_serial_config_port(struct uart_port *_port, int type)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
-
- _enter("%s", port->name);
-
- port->uart.type = PORT_MN10300;
-
- if (port->options & MNSCx_OPT_CTS)
- port->uart.type = PORT_MN10300_CTS;
-
- mn10300_serial_request_port(_port);
-}
-
-/*
- * verify serial parameters are suitable for this port type
- */
-static int mn10300_serial_verify_port(struct uart_port *_port,
- struct serial_struct *ss)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
- void *mapbase = (void *) (unsigned long) port->uart.mapbase;
-
- _enter("%s", port->name);
-
- /* these things may not be changed */
- if (ss->irq != port->uart.irq ||
- ss->port != port->uart.iobase ||
- ss->io_type != port->uart.iotype ||
- ss->iomem_base != mapbase ||
- ss->iomem_reg_shift != port->uart.regshift ||
- ss->hub6 != port->uart.hub6 ||
- ss->xmit_fifo_size != port->uart.fifosize)
- return -EINVAL;
-
- /* type may be changed on a port that supports CTS */
- if (ss->type != port->uart.type) {
- if (!(port->options & MNSCx_OPT_CTS))
- return -EINVAL;
-
- if (ss->type != PORT_MN10300 &&
- ss->type != PORT_MN10300_CTS)
- return -EINVAL;
- }
-
- return 0;
-}
-
-/*
- * initialise the MN10300 on-chip UARTs
- */
-static int __init mn10300_serial_init(void)
-{
- struct mn10300_serial_port *port;
- int ret, i;
-
- printk(KERN_INFO "%s version %s (%s)\n",
- serial_name, serial_version, serial_revdate);
-
-#if defined(CONFIG_MN10300_TTYSM2) && defined(CONFIG_AM33_2)
- {
- int tmp;
- SC2TIM = 8; /* make the baud base of timer 2 IOCLK/8 */
- tmp = SC2TIM;
- }
-#endif
-
- set_intr_stub(NUM2EXCEP_IRQ_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL),
- mn10300_serial_vdma_interrupt);
-
- ret = uart_register_driver(&mn10300_serial_driver);
- if (!ret) {
- for (i = 0 ; i < NR_PORTS ; i++) {
- port = mn10300_serial_ports[i];
- if (!port || port->gdbstub)
- continue;
-
- switch (port->clock_src) {
- case MNSCx_CLOCK_SRC_IOCLK:
- port->ioclk = MN10300_IOCLK;
- break;
-
-#ifdef MN10300_IOBCLK
- case MNSCx_CLOCK_SRC_IOBCLK:
- port->ioclk = MN10300_IOBCLK;
- break;
-#endif
- default:
- BUG();
- }
-
- ret = uart_add_one_port(&mn10300_serial_driver,
- &port->uart);
-
- if (ret < 0) {
- _debug("ERROR %d", -ret);
- break;
- }
- }
-
- if (ret)
- uart_unregister_driver(&mn10300_serial_driver);
- }
-
- return ret;
-}
-
-__initcall(mn10300_serial_init);
-
-
-#ifdef CONFIG_MN10300_TTYSM_CONSOLE
-
-/*
- * print a string to the serial port without disturbing the real user of the
- * port too much
- * - the console must be locked by the caller
- */
-static void mn10300_serial_console_write(struct console *co,
- const char *s, unsigned count)
-{
- struct mn10300_serial_port *port;
- unsigned i;
- u16 scxctr;
- u8 tmxmd;
- unsigned long flags;
- int locked = 1;
-
- port = mn10300_serial_ports[co->index];
-
- local_irq_save(flags);
- if (port->uart.sysrq) {
- /* mn10300_serial_interrupt() already took the lock */
- locked = 0;
- } else if (oops_in_progress) {
- locked = spin_trylock(&port->uart.lock);
- } else
- spin_lock(&port->uart.lock);
-
- /* firstly hijack the serial port from the "virtual DMA" controller */
- mn10300_serial_dis_tx_intr(port);
-
- /* the transmitter may be disabled */
- scxctr = *port->_control;
- if (!(scxctr & SC01CTR_TXE)) {
- /* restart the UART clock */
- tmxmd = *port->_tmxmd;
-
- switch (port->div_timer) {
- case MNSCx_DIV_TIMER_16BIT:
- *port->_tmxmd = 0;
- *port->_tmxmd = TM8MD_INIT_COUNTER;
- *port->_tmxmd = tmxmd | TM8MD_COUNT_ENABLE;
- break;
-
- case MNSCx_DIV_TIMER_8BIT:
- *port->_tmxmd = 0;
- *port->_tmxmd = TM2MD_INIT_COUNTER;
- *port->_tmxmd = tmxmd | TM2MD_COUNT_ENABLE;
- break;
- }
-
- /* enable the transmitter */
- *port->_control = (scxctr & ~SC01CTR_BKE) | SC01CTR_TXE;
-
- } else if (scxctr & SC01CTR_BKE) {
- /* stop transmitting BREAK */
- *port->_control = (scxctr & ~SC01CTR_BKE);
- }
-
- /* send the chars into the serial port (with LF -> LFCR conversion) */
- for (i = 0; i < count; i++) {
- char ch = *s++;
-
- while (*port->_status & SC01STR_TBF)
- continue;
- *port->_txb = ch;
-
- if (ch == 0x0a) {
- while (*port->_status & SC01STR_TBF)
- continue;
- *port->_txb = 0xd;
- }
- }
-
- /* can't let the transmitter be turned off if it's actually
- * transmitting */
- while (*port->_status & (SC01STR_TXF | SC01STR_TBF))
- continue;
-
- /* disable the transmitter if we re-enabled it */
- if (!(scxctr & SC01CTR_TXE))
- *port->_control = scxctr;
-
- mn10300_serial_en_tx_intr(port);
-
- if (locked)
- spin_unlock(&port->uart.lock);
- local_irq_restore(flags);
-}
-
-/*
- * set up a serial port as a console
- * - construct a cflag setting for the first rs_open()
- * - initialize the serial port
- * - return non-zero if we didn't find a serial port.
- */
-static int __init mn10300_serial_console_setup(struct console *co,
- char *options)
-{
- struct mn10300_serial_port *port;
- int i, parity = 'n', baud = 9600, bits = 8, flow = 0;
-
- for (i = 0 ; i < NR_PORTS ; i++) {
- port = mn10300_serial_ports[i];
- if (port && !port->gdbstub && port->uart.line == co->index)
- goto found_device;
- }
-
- return -ENODEV;
-
-found_device:
- switch (port->clock_src) {
- case MNSCx_CLOCK_SRC_IOCLK:
- port->ioclk = MN10300_IOCLK;
- break;
-
-#ifdef MN10300_IOBCLK
- case MNSCx_CLOCK_SRC_IOBCLK:
- port->ioclk = MN10300_IOBCLK;
- break;
-#endif
- default:
- BUG();
- }
-
- if (options)
- uart_parse_options(options, &baud, &parity, &bits, &flow);
-
- return uart_set_options(&port->uart, co, baud, parity, bits, flow);
-}
-
-/*
- * register console
- */
-static int __init mn10300_serial_console_init(void)
-{
- register_console(&mn10300_serial_console);
- return 0;
-}
-
-console_initcall(mn10300_serial_console_init);
-#endif
-
-#ifdef CONFIG_CONSOLE_POLL
-/*
- * Polled character reception for the kernel debugger
- */
-static int mn10300_serial_poll_get_char(struct uart_port *_port)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
- unsigned ix;
- u8 st, ch;
-
- _enter("%s", port->name);
-
- if (mn10300_serial_int_tbl[port->rx_irq].port != NULL) {
- do {
- /* pull chars out of the hat */
- ix = READ_ONCE(port->rx_outp);
- if (CIRC_CNT(port->rx_inp, ix, MNSC_BUFFER_SIZE) == 0)
- return NO_POLL_CHAR;
-
- /*
- * READ_ONCE() enforces dependency, but dangerous
- * through integer!!!
- */
- ch = port->rx_buffer[ix++];
- st = port->rx_buffer[ix++];
- smp_mb();
- port->rx_outp = ix & (MNSC_BUFFER_SIZE - 1);
-
- } while (st & (SC01STR_FEF | SC01STR_PEF | SC01STR_OEF));
- } else {
- do {
- st = *port->_status;
- if (st & (SC01STR_FEF | SC01STR_PEF | SC01STR_OEF))
- continue;
- } while (!(st & SC01STR_RBF));
-
- ch = *port->_rxb;
- }
-
- return ch;
-}
-
-
-/*
- * Polled character transmission for the kernel debugger
- */
-static void mn10300_serial_poll_put_char(struct uart_port *_port,
- unsigned char ch)
-{
- struct mn10300_serial_port *port =
- container_of(_port, struct mn10300_serial_port, uart);
- u8 intr, tmp;
-
- /* wait for the transmitter to finish anything it might be doing (and
- * this includes the virtual DMA handler, so it might take a while) */
- while (*port->_status & (SC01STR_TBF | SC01STR_TXF))
- continue;
-
- /* disable the Tx ready interrupt */
- intr = *port->_intr;
- *port->_intr = intr & ~SC01ICR_TI;
- tmp = *port->_intr;
-
- if (ch == 0x0a) {
- *port->_txb = 0x0d;
- while (*port->_status & SC01STR_TBF)
- continue;
- }
-
- *port->_txb = ch;
- while (*port->_status & SC01STR_TBF)
- continue;
-
- /* restore the Tx interrupt flag */
- *port->_intr = intr;
- tmp = *port->_intr;
-}
-
-#endif /* CONFIG_CONSOLE_POLL */
+++ /dev/null
-/* MN10300 On-chip serial port driver definitions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _MN10300_SERIAL_H
-#define _MN10300_SERIAL_H
-
-#ifndef __ASSEMBLY__
-#include <linux/serial_core.h>
-#include <linux/termios.h>
-#endif
-
-#include <asm/page.h>
-#include <asm/serial-regs.h>
-
-#define NR_PORTS 3 /* should be set 3 or 9 or 16 */
-
-#define MNSC_BUFFER_SIZE +(PAGE_SIZE / 2)
-
-/* intr_flags bits */
-#define MNSCx_RX_AVAIL 0x01
-#define MNSCx_RX_OVERF 0x02
-#define MNSCx_TX_SPACE 0x04
-#define MNSCx_TX_EMPTY 0x08
-
-/* tx_flags bits */
-#define MNSCx_TX_BREAK 0x01
-#define MNSCx_TX_STOP 0x02
-
-#ifndef __ASSEMBLY__
-
-struct mn10300_serial_port {
- char *rx_buffer; /* reception buffer base */
- unsigned rx_inp; /* pointer to rx input offset */
- unsigned rx_outp; /* pointer to rx output offset */
- u8 tx_xchar; /* high-priority XON/XOFF buffer */
- u8 tx_flags; /* transmit break/stop request */
- u8 intr_flags; /* interrupt flags */
- volatile u16 *rx_icr; /* Rx interrupt control register */
- volatile u16 *tx_icr; /* Tx interrupt control register */
- int rx_irq; /* reception IRQ */
- int tx_irq; /* transmission IRQ */
- int tm_irq; /* timer IRQ */
-
- const char *name; /* name of serial port */
- const char *rx_name; /* Rx interrupt handler name of serial port */
- const char *tx_name; /* Tx interrupt handler name of serial port */
- const char *tm_name; /* Timer interrupt handler name */
- unsigned short type; /* type of serial port */
- unsigned char isconsole; /* T if it's a console */
- volatile void *_iobase; /* pointer to base of I/O control regs */
- volatile u16 *_control; /* control register pointer */
- volatile u8 *_status; /* status register pointer */
- volatile u8 *_intr; /* interrupt register pointer */
- volatile u8 *_rxb; /* receive buffer register pointer */
- volatile u8 *_txb; /* transmit buffer register pointer */
- volatile u16 *_tmicr; /* timer interrupt control register */
- volatile u8 *_tmxmd; /* baud rate timer mode register */
- volatile u16 *_tmxbr; /* baud rate timer base register */
-
- /* this must come down here so that assembly can use BSET to access the
- * above fields */
- struct uart_port uart;
-
- unsigned short rx_brk; /* current break reception status */
- u16 tx_cts; /* current CTS status */
- int gdbstub; /* preemptively stolen by GDB stub */
-
- u8 clock_src; /* clock source */
-#define MNSCx_CLOCK_SRC_IOCLK 0
-#define MNSCx_CLOCK_SRC_IOBCLK 1
-
- u8 div_timer; /* timer used as divisor */
-#define MNSCx_DIV_TIMER_16BIT 0
-#define MNSCx_DIV_TIMER_8BIT 1
-
- u16 options; /* options */
-#define MNSCx_OPT_CTS 0x0001
-
- unsigned long ioclk; /* base clock rate */
-};
-
-#ifdef CONFIG_MN10300_TTYSM0
-extern struct mn10300_serial_port mn10300_serial_port_sif0;
-#endif
-
-#ifdef CONFIG_MN10300_TTYSM1
-extern struct mn10300_serial_port mn10300_serial_port_sif1;
-#endif
-
-#ifdef CONFIG_MN10300_TTYSM2
-extern struct mn10300_serial_port mn10300_serial_port_sif2;
-#endif
-
-extern struct mn10300_serial_port *mn10300_serial_ports[];
-
-struct mn10300_serial_int {
- struct mn10300_serial_port *port;
- asmlinkage void (*vdma)(void);
-};
-
-extern struct mn10300_serial_int mn10300_serial_int_tbl[];
-
-extern asmlinkage void mn10300_serial_vdma_interrupt(void);
-extern asmlinkage void mn10300_serial_vdma_rx_handler(void);
-extern asmlinkage void mn10300_serial_vdma_tx_handler(void);
-
-#endif /* __ASSEMBLY__ */
-
-#if defined(CONFIG_GDBSTUB_ON_TTYSM0)
-#define SCgSTR SC0STR
-#define SCgRXB SC0RXB
-#define SCgRXIRQ SC0RXIRQ
-#elif defined(CONFIG_GDBSTUB_ON_TTYSM1)
-#define SCgSTR SC1STR
-#define SCgRXB SC1RXB
-#define SCgRXIRQ SC1RXIRQ
-#elif defined(CONFIG_GDBSTUB_ON_TTYSM2)
-#define SCgSTR SC2STR
-#define SCgRXB SC2RXB
-#define SCgRXIRQ SC2RXIRQ
-#endif
-
-#endif /* _MN10300_SERIAL_H */
+++ /dev/null
-###############################################################################
-#
-# MN10300 Watchdog interrupt handler
-#
-# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
-# Written by David Howells (dhowells@redhat.com)
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public Licence
-# as published by the Free Software Foundation; either version
-# 2 of the Licence, or (at your option) any later version.
-#
-###############################################################################
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/intctl-regs.h>
-#include <asm/timer-regs.h>
-#include <asm/frame.inc>
-#include <linux/threads.h>
-
- .text
-
-###############################################################################
-#
-# Watchdog handler entry point
-# - special non-maskable interrupt
-#
-###############################################################################
- .globl watchdog_handler
- .type watchdog_handler,@function
-watchdog_handler:
- add -4,sp
- SAVE_ALL
-
- mov 0xffffffff,d0
- mov d0,(REG_ORIG_D0,fp)
-
- mov fp,d0
- lsr 2,d1
- call watchdog_interrupt[],0 # watchdog_interrupt(regs,irq)
-
- jmp ret_from_intr
-
- .size watchdog_handler,.-watchdog_handler
-
-###############################################################################
-#
-# Watchdog touch entry point
-# - kept to absolute minimum (unfortunately, it's prototyped in linux/nmi.h so
-# we can't inline it)
-#
-###############################################################################
- .globl arch_touch_nmi_watchdog
- .type arch_touch_nmi_watchdog,@function
-arch_touch_nmi_watchdog:
- clr d0
- clr d1
- mov watchdog_alert_counter, a0
- setlb
- mov d0, (a0+)
- inc d1
- cmp NR_CPUS, d1
- lne
- ret [],0
-
- .size arch_touch_nmi_watchdog,.-arch_touch_nmi_watchdog
+++ /dev/null
-/* MN10300 Watchdog timer
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- * - Derived from arch/i386/kernel/nmi.c
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/kernel_stat.h>
-#include <linux/nmi.h>
-#include <asm/processor.h>
-#include <linux/atomic.h>
-#include <asm/intctl-regs.h>
-#include <asm/rtc-regs.h>
-#include <asm/div64.h>
-#include <asm/smp.h>
-#include <asm/gdb-stub.h>
-#include <proc/clock.h>
-
-static DEFINE_SPINLOCK(watchdog_print_lock);
-static unsigned int watchdog;
-static unsigned int watchdog_hz = 1;
-unsigned int watchdog_alert_counter[NR_CPUS];
-
-EXPORT_SYMBOL(arch_touch_nmi_watchdog);
-
-/*
- * the best way to detect whether a CPU has a 'hard lockup' problem
- * is to check its timer makes IRQ counts. If they are not
- * changing then that CPU has some problem.
- *
- * since NMIs dont listen to _any_ locks, we have to be extremely
- * careful not to rely on unsafe variables. The printk might lock
- * up though, so we have to break up any console locks first ...
- * [when there will be more tty-related locks, break them up
- * here too!]
- */
-static unsigned int last_irq_sums[NR_CPUS];
-
-int __init check_watchdog(void)
-{
- irq_cpustat_t tmp[1];
-
- printk(KERN_INFO "Testing Watchdog... ");
-
- memcpy(tmp, irq_stat, sizeof(tmp));
- local_irq_enable();
- mdelay((10 * 1000) / watchdog_hz); /* wait 10 ticks */
- local_irq_disable();
-
- if (nmi_count(0) - tmp[0].__nmi_count <= 5) {
- printk(KERN_WARNING "CPU#%d: Watchdog appears to be stuck!\n",
- 0);
- return -1;
- }
-
- printk(KERN_INFO "OK.\n");
-
- /* now that we know it works we can reduce NMI frequency to something
- * more reasonable; makes a difference in some configs
- */
- watchdog_hz = 1;
-
- return 0;
-}
-
-static int __init setup_watchdog(char *str)
-{
- unsigned tmp;
- int opt;
- u8 ctr;
-
- get_option(&str, &opt);
- if (opt != 1)
- return 0;
-
- watchdog = opt;
- if (watchdog) {
- set_intr_stub(EXCEP_WDT, watchdog_handler);
- ctr = WDCTR_WDCK_65536th;
- WDCTR = WDCTR_WDRST | ctr;
- WDCTR = ctr;
- tmp = WDCTR;
-
- tmp = __muldiv64u(1 << (16 + ctr * 2), 1000000, MN10300_WDCLK);
- tmp = 1000000000 / tmp;
- watchdog_hz = (tmp + 500) / 1000;
- }
-
- return 1;
-}
-
-__setup("watchdog=", setup_watchdog);
-
-void __init watchdog_go(void)
-{
- u8 wdt;
-
- if (watchdog) {
- printk(KERN_INFO "Watchdog: running at %uHz\n", watchdog_hz);
- wdt = WDCTR & ~WDCTR_WDCNE;
- WDCTR = wdt | WDCTR_WDRST;
- wdt = WDCTR;
- WDCTR = wdt | WDCTR_WDCNE;
- wdt = WDCTR;
-
- check_watchdog();
- }
-}
-
-#ifdef CONFIG_SMP
-static void watchdog_dump_register(void *dummy)
-{
- printk(KERN_ERR "--- Register Dump (CPU%d) ---\n", CPUID);
- show_registers(current_frame());
-}
-#endif
-
-asmlinkage
-void watchdog_interrupt(struct pt_regs *regs, enum exception_code excep)
-{
- /*
- * Since current-> is always on the stack, and we always switch
- * the stack NMI-atomically, it's safe to use smp_processor_id().
- */
- int sum, cpu;
- int irq = NMIIRQ;
- u8 wdt, tmp;
-
- wdt = WDCTR & ~WDCTR_WDCNE;
- WDCTR = wdt;
- tmp = WDCTR;
- NMICR = NMICR_WDIF;
-
- nmi_count(smp_processor_id())++;
- kstat_incr_irq_this_cpu(irq);
-
- for_each_online_cpu(cpu) {
-
- sum = irq_stat[cpu].__irq_count;
-
- if ((last_irq_sums[cpu] == sum)
-#if defined(CONFIG_GDBSTUB) && defined(CONFIG_SMP)
- && !(CHK_GDBSTUB_BUSY()
- || atomic_read(&cpu_doing_single_step))
-#endif
- ) {
- /*
- * Ayiee, looks like this CPU is stuck ...
- * wait a few IRQs (5 seconds) before doing the oops ...
- */
- watchdog_alert_counter[cpu]++;
- if (watchdog_alert_counter[cpu] == 5 * watchdog_hz) {
- spin_lock(&watchdog_print_lock);
- /*
- * We are in trouble anyway, lets at least try
- * to get a message out.
- */
- bust_spinlocks(1);
- printk(KERN_ERR
- "NMI Watchdog detected LOCKUP on CPU%d,"
- " pc %08lx, registers:\n",
- cpu, regs->pc);
-#ifdef CONFIG_SMP
- printk(KERN_ERR
- "--- Register Dump (CPU%d) ---\n",
- CPUID);
-#endif
- show_registers(regs);
-#ifdef CONFIG_SMP
- smp_nmi_call_function(watchdog_dump_register,
- NULL, 1);
-#endif
- printk(KERN_NOTICE "console shuts up ...\n");
- console_silent();
- spin_unlock(&watchdog_print_lock);
- bust_spinlocks(0);
-#ifdef CONFIG_GDBSTUB
- if (CHK_GDBSTUB_BUSY_AND_ACTIVE())
- gdbstub_exception(regs, excep);
- else
- gdbstub_intercept(regs, excep);
-#endif
- do_exit(SIGSEGV);
- }
- } else {
- last_irq_sums[cpu] = sum;
- watchdog_alert_counter[cpu] = 0;
- }
- }
-
- WDCTR = wdt | WDCTR_WDRST;
- tmp = WDCTR;
- WDCTR = wdt | WDCTR_WDCNE;
- tmp = WDCTR;
-}
+++ /dev/null
-/* MN10300 Miscellaneous and library kernel exports
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/module.h>
-#include <linux/uaccess.h>
-#include <asm/pgtable.h>
-
-
-EXPORT_SYMBOL(empty_zero_page);
-
-EXPORT_SYMBOL(change_bit);
-EXPORT_SYMBOL(test_and_change_bit);
-
-EXPORT_SYMBOL(memcpy);
-EXPORT_SYMBOL(memmove);
-EXPORT_SYMBOL(memset);
-
-EXPORT_SYMBOL(strncpy_from_user);
-EXPORT_SYMBOL(clear_user);
-EXPORT_SYMBOL(__clear_user);
-EXPORT_SYMBOL(strnlen_user);
-
-extern u64 __ashrdi3(u64, unsigned);
-extern u64 __ashldi3(u64, unsigned);
-extern u64 __lshrdi3(u64, unsigned);
-extern s64 __negdi2(s64);
-extern int __ucmpdi2(u64, u64);
-EXPORT_SYMBOL(__ashrdi3);
-EXPORT_SYMBOL(__ashldi3);
-EXPORT_SYMBOL(__lshrdi3);
-EXPORT_SYMBOL(__negdi2);
-EXPORT_SYMBOL(__ucmpdi2);
+++ /dev/null
-/* MN10300 Kernel module helper routines
- *
- * Copyright (C) 2007, 2008, 2009 Red Hat, Inc. All Rights Reserved.
- * Written by Mark Salter (msalter@redhat.com)
- * - Derived from arch/i386/kernel/module.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public Licence as published by
- * the Free Software Foundation; either version 2 of the Licence, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public Licence for more details.
- *
- * You should have received a copy of the GNU General Public Licence
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#include <linux/moduleloader.h>
-#include <linux/elf.h>
-#include <linux/vmalloc.h>
-#include <linux/fs.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/bug.h>
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(fmt, ...)
-#endif
-
-static void reloc_put16(uint8_t *p, uint32_t val)
-{
- p[0] = val & 0xff;
- p[1] = (val >> 8) & 0xff;
-}
-
-static void reloc_put24(uint8_t *p, uint32_t val)
-{
- reloc_put16(p, val);
- p[2] = (val >> 16) & 0xff;
-}
-
-static void reloc_put32(uint8_t *p, uint32_t val)
-{
- reloc_put16(p, val);
- reloc_put16(p+2, val >> 16);
-}
-
-/*
- * apply a RELA relocation
- */
-int apply_relocate_add(Elf32_Shdr *sechdrs,
- const char *strtab,
- unsigned int symindex,
- unsigned int relsec,
- struct module *me)
-{
- unsigned int i, sym_diff_seen = 0;
- Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr;
- Elf32_Sym *sym;
- Elf32_Addr relocation, sym_diff_val = 0;
- uint8_t *location;
- uint32_t value;
-
- DEBUGP("Applying relocate section %u to %u\n",
- relsec, sechdrs[relsec].sh_info);
-
- for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
- /* this is where to make the change */
- location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
- + rel[i].r_offset;
-
- /* this is the symbol the relocation is referring to (note that
- * all undefined symbols have been resolved by the caller) */
- sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
- + ELF32_R_SYM(rel[i].r_info);
-
- /* this is the adjustment to be made */
- relocation = sym->st_value + rel[i].r_addend;
-
- if (sym_diff_seen) {
- switch (ELF32_R_TYPE(rel[i].r_info)) {
- case R_MN10300_32:
- case R_MN10300_24:
- case R_MN10300_16:
- case R_MN10300_8:
- relocation -= sym_diff_val;
- sym_diff_seen = 0;
- break;
- default:
- printk(KERN_ERR "module %s: Unexpected SYM_DIFF relocation: %u\n",
- me->name, ELF32_R_TYPE(rel[i].r_info));
- return -ENOEXEC;
- }
- }
-
- switch (ELF32_R_TYPE(rel[i].r_info)) {
- /* for the first four relocation types, we simply
- * store the adjustment at the location given */
- case R_MN10300_32:
- reloc_put32(location, relocation);
- break;
- case R_MN10300_24:
- reloc_put24(location, relocation);
- break;
- case R_MN10300_16:
- reloc_put16(location, relocation);
- break;
- case R_MN10300_8:
- *location = relocation;
- break;
-
- /* for the next three relocation types, we write the
- * adjustment with the address subtracted over the
- * value at the location given */
- case R_MN10300_PCREL32:
- value = relocation - (uint32_t) location;
- reloc_put32(location, value);
- break;
- case R_MN10300_PCREL16:
- value = relocation - (uint32_t) location;
- reloc_put16(location, value);
- break;
- case R_MN10300_PCREL8:
- *location = relocation - (uint32_t) location;
- break;
-
- case R_MN10300_SYM_DIFF:
- /* This is used to adjust the next reloc as required
- * by relaxation. */
- sym_diff_seen = 1;
- sym_diff_val = sym->st_value;
- break;
-
- case R_MN10300_ALIGN:
- /* Just ignore the ALIGN relocs.
- * Only interesting if kernel performed relaxation. */
- continue;
-
- default:
- printk(KERN_ERR "module %s: Unknown relocation: %u\n",
- me->name, ELF32_R_TYPE(rel[i].r_info));
- return -ENOEXEC;
- }
- }
- if (sym_diff_seen) {
- printk(KERN_ERR "module %s: Nothing follows SYM_DIFF relocation: %u\n",
- me->name, ELF32_R_TYPE(rel[i].r_info));
- return -ENOEXEC;
- }
- return 0;
-}
+++ /dev/null
-/* MN10300 Process handling code
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/sched/debug.h>
-#include <linux/sched/task.h>
-#include <linux/sched/task_stack.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/reboot.h>
-#include <linux/percpu.h>
-#include <linux/err.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/rcupdate.h>
-#include <linux/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/mmu_context.h>
-#include <asm/fpu.h>
-#include <asm/reset-regs.h>
-#include <asm/gdb-stub.h>
-#include "internal.h"
-
-/*
- * power off function, if any
- */
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
-/*
- * On SMP it's slightly faster (but much more power-consuming!)
- * to poll the ->work.need_resched flag instead of waiting for the
- * cross-CPU IPI to arrive. Use this option with caution.
- *
- * tglx: No idea why this depends on HOTPLUG_CPU !?!
- */
-#if !defined(CONFIG_SMP) || defined(CONFIG_HOTPLUG_CPU)
-void arch_cpu_idle(void)
-{
- safe_halt();
-}
-#endif
-
-void machine_restart(char *cmd)
-{
-#ifdef CONFIG_KERNEL_DEBUGGER
- gdbstub_exit(0);
-#endif
-
-#ifdef mn10300_unit_hard_reset
- mn10300_unit_hard_reset();
-#else
- mn10300_proc_hard_reset();
-#endif
-}
-
-void machine_halt(void)
-{
-#ifdef CONFIG_KERNEL_DEBUGGER
- gdbstub_exit(0);
-#endif
-}
-
-void machine_power_off(void)
-{
-#ifdef CONFIG_KERNEL_DEBUGGER
- gdbstub_exit(0);
-#endif
-}
-
-void show_regs(struct pt_regs *regs)
-{
- show_regs_print_info(KERN_DEFAULT);
-}
-
-/*
- * free current thread data structures etc..
- */
-void exit_thread(struct task_struct *tsk)
-{
- exit_fpu(tsk);
-}
-
-void flush_thread(void)
-{
- flush_fpu();
-}
-
-void release_thread(struct task_struct *dead_task)
-{
-}
-
-/*
- * this gets called so that we can store lazy state into memory and copy the
- * current task into the new thread.
- */
-int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
-{
- unlazy_fpu(src);
- *dst = *src;
- return 0;
-}
-
-/*
- * set up the kernel stack for a new thread and copy arch-specific thread
- * control information
- */
-int copy_thread(unsigned long clone_flags,
- unsigned long c_usp, unsigned long ustk_size,
- struct task_struct *p)
-{
- struct thread_info *ti = task_thread_info(p);
- struct pt_regs *c_regs;
- unsigned long c_ksp;
-
- c_ksp = (unsigned long) task_stack_page(p) + THREAD_SIZE;
-
- /* allocate the userspace exception frame and set it up */
- c_ksp -= sizeof(struct pt_regs);
- c_regs = (struct pt_regs *) c_ksp;
- c_ksp -= 12; /* allocate function call ABI slack */
-
- /* set up things up so the scheduler can start the new task */
- p->thread.uregs = c_regs;
- ti->frame = c_regs;
- p->thread.a3 = (unsigned long) c_regs;
- p->thread.sp = c_ksp;
- p->thread.wchan = p->thread.pc;
- p->thread.usp = c_usp;
-
- if (unlikely(p->flags & PF_KTHREAD)) {
- memset(c_regs, 0, sizeof(struct pt_regs));
- c_regs->a0 = c_usp; /* function */
- c_regs->d0 = ustk_size; /* argument */
- local_save_flags(c_regs->epsw);
- c_regs->epsw |= EPSW_IE | EPSW_IM_7;
- p->thread.pc = (unsigned long) ret_from_kernel_thread;
- return 0;
- }
- *c_regs = *current_pt_regs();
- if (c_usp)
- c_regs->sp = c_usp;
- c_regs->epsw &= ~EPSW_FE; /* my FPU */
-
- /* the new TLS pointer is passed in as arg #5 to sys_clone() */
- if (clone_flags & CLONE_SETTLS)
- c_regs->e2 = current_frame()->d3;
-
- p->thread.pc = (unsigned long) ret_from_fork;
-
- return 0;
-}
-
-unsigned long get_wchan(struct task_struct *p)
-{
- return p->thread.wchan;
-}
+++ /dev/null
-###############################################################################
-#
-# Fast profiling interrupt handler
-#
-# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
-# Written by David Howells (dhowells@redhat.com)
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public Licence
-# as published by the Free Software Foundation; either version
-# 2 of the Licence, or (at your option) any later version.
-#
-###############################################################################
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/segment.h>
-#include <asm/smp.h>
-#include <asm/intctl-regs.h>
-#include <asm/timer-regs.h>
-
-#define pi break
-
- .balign 4
-counter:
- .long -1
-
-###############################################################################
-#
-# Profiling interrupt entry point
-# - intended to run at interrupt priority 1
-#
-###############################################################################
-ENTRY(profile_handler)
- movm [d2,d3,a2],(sp)
-
- # ignore userspace
- mov (12,sp),d2
- and EPSW_nSL,d2
- bne out
-
- # do nothing if there's no buffer
- mov (prof_buffer),a2
- and a2,a2
- beq out
- or 0x20000000,a2
-
- # calculate relative position in text segment
- mov (16,sp),d2
- sub _stext,d2
- mov (prof_shift),d3
- lsr d3,d2
- mov (prof_len),d3
- cmp d3,d2
- bcc outside_text
-
- # increment the appropriate profile bucket
-do_inc:
- asl2 d2
- mov (a2,d2),d3
- inc d3
- mov d3,(a2,d2)
-out:
- mov GxICR_DETECT,d2
- movbu d2,(TM11ICR) # ACK the interrupt
- movbu (TM11ICR),d2
- movm (sp),[d2,d3,a2]
- rti
-
-outside_text:
- sub 1,d3
- mov d3,d2
- bra do_inc
+++ /dev/null
-/* MN10300 Profiling setup
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-/*
- * initialise the profiling if enabled
- * - using with gdbstub will give anomalous results
- * - can't be used with gdbstub if running at IRQ priority 0
- */
-static __init int profile_init(void)
-{
- u16 tmp;
-
- if (!prof_buffer)
- return 0;
-
- /* use timer 11 to drive the profiling interrupts */
- set_intr_stub(EXCEP_IRQ_LEVEL0, profile_handler);
-
- /* set IRQ priority at which to run */
- set_intr_level(TM11IRQ, GxICR_LEVEL_0);
-
- /* set up timer 11
- * - source: (IOCLK 33MHz)*2 = 66MHz
- * - frequency: (33330000*2) / 8 / 20625 = 202Hz
- */
- TM11BR = 20625 - 1;
- TM11MD = TM8MD_SRC_IOCLK_8;
- TM11MD |= TM8MD_INIT_COUNTER;
- TM11MD &= ~TM8MD_INIT_COUNTER;
- TM11MD |= TM8MD_COUNT_ENABLE;
-
- TM11ICR |= GxICR_ENABLE;
- tmp = TM11ICR;
-
- printk(KERN_INFO "Profiling initiated on timer 11, priority 0, %uHz\n",
- MN10300_IOCLK / 8 / (TM11BR + 1));
- printk(KERN_INFO "Profile histogram stored %p-%p\n",
- prof_buffer, (u8 *)(prof_buffer + prof_len) - 1);
-
- return 0;
-}
-
-__initcall(profile_init);
+++ /dev/null
-/* MN10300 Process tracing
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Modified by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/sched/task_stack.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/regset.h>
-#include <linux/elf.h>
-#include <linux/tracehook.h>
-#include <linux/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/processor.h>
-#include <asm/cacheflush.h>
-#include <asm/fpu.h>
-#include <asm/asm-offsets.h>
-
-/*
- * translate ptrace register IDs into struct pt_regs offsets
- */
-static const u8 ptrace_regid_to_frame[] = {
- [PT_A3 << 2] = REG_A3,
- [PT_A2 << 2] = REG_A2,
- [PT_D3 << 2] = REG_D3,
- [PT_D2 << 2] = REG_D2,
- [PT_MCVF << 2] = REG_MCVF,
- [PT_MCRL << 2] = REG_MCRL,
- [PT_MCRH << 2] = REG_MCRH,
- [PT_MDRQ << 2] = REG_MDRQ,
- [PT_E1 << 2] = REG_E1,
- [PT_E0 << 2] = REG_E0,
- [PT_E7 << 2] = REG_E7,
- [PT_E6 << 2] = REG_E6,
- [PT_E5 << 2] = REG_E5,
- [PT_E4 << 2] = REG_E4,
- [PT_E3 << 2] = REG_E3,
- [PT_E2 << 2] = REG_E2,
- [PT_SP << 2] = REG_SP,
- [PT_LAR << 2] = REG_LAR,
- [PT_LIR << 2] = REG_LIR,
- [PT_MDR << 2] = REG_MDR,
- [PT_A1 << 2] = REG_A1,
- [PT_A0 << 2] = REG_A0,
- [PT_D1 << 2] = REG_D1,
- [PT_D0 << 2] = REG_D0,
- [PT_ORIG_D0 << 2] = REG_ORIG_D0,
- [PT_EPSW << 2] = REG_EPSW,
- [PT_PC << 2] = REG_PC,
-};
-
-static inline int get_stack_long(struct task_struct *task, int offset)
-{
- return *(unsigned long *)
- ((unsigned long) task->thread.uregs + offset);
-}
-
-static inline
-int put_stack_long(struct task_struct *task, int offset, unsigned long data)
-{
- unsigned long stack;
-
- stack = (unsigned long) task->thread.uregs + offset;
- *(unsigned long *) stack = data;
- return 0;
-}
-
-/*
- * retrieve the contents of MN10300 userspace general registers
- */
-static int genregs_get(struct task_struct *target,
- const struct user_regset *regset,
- unsigned int pos, unsigned int count,
- void *kbuf, void __user *ubuf)
-{
- const struct pt_regs *regs = task_pt_regs(target);
- int ret;
-
- /* we need to skip regs->next */
- ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
- regs, 0, PT_ORIG_D0 * sizeof(long));
- if (ret < 0)
- return ret;
-
- ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
- ®s->orig_d0, PT_ORIG_D0 * sizeof(long),
- NR_PTREGS * sizeof(long));
- if (ret < 0)
- return ret;
-
- return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
- NR_PTREGS * sizeof(long), -1);
-}
-
-/*
- * update the contents of the MN10300 userspace general registers
- */
-static int genregs_set(struct task_struct *target,
- const struct user_regset *regset,
- unsigned int pos, unsigned int count,
- const void *kbuf, const void __user *ubuf)
-{
- struct pt_regs *regs = task_pt_regs(target);
- unsigned long tmp;
- int ret;
-
- /* we need to skip regs->next */
- ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
- regs, 0, PT_ORIG_D0 * sizeof(long));
- if (ret < 0)
- return ret;
-
- ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
- ®s->orig_d0, PT_ORIG_D0 * sizeof(long),
- PT_EPSW * sizeof(long));
- if (ret < 0)
- return ret;
-
- /* we need to mask off changes to EPSW */
- tmp = regs->epsw;
- ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
- &tmp, PT_EPSW * sizeof(long),
- PT_PC * sizeof(long));
- tmp &= EPSW_FLAG_V | EPSW_FLAG_C | EPSW_FLAG_N | EPSW_FLAG_Z;
- tmp |= regs->epsw & ~(EPSW_FLAG_V | EPSW_FLAG_C | EPSW_FLAG_N |
- EPSW_FLAG_Z);
- regs->epsw = tmp;
-
- if (ret < 0)
- return ret;
-
- /* and finally load the PC */
- ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
- ®s->pc, PT_PC * sizeof(long),
- NR_PTREGS * sizeof(long));
-
- if (ret < 0)
- return ret;
-
- return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
- NR_PTREGS * sizeof(long), -1);
-}
-
-/*
- * retrieve the contents of MN10300 userspace FPU registers
- */
-static int fpuregs_get(struct task_struct *target,
- const struct user_regset *regset,
- unsigned int pos, unsigned int count,
- void *kbuf, void __user *ubuf)
-{
- const struct fpu_state_struct *fpregs = &target->thread.fpu_state;
- int ret;
-
- unlazy_fpu(target);
-
- ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
- fpregs, 0, sizeof(*fpregs));
- if (ret < 0)
- return ret;
-
- return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
- sizeof(*fpregs), -1);
-}
-
-/*
- * update the contents of the MN10300 userspace FPU registers
- */
-static int fpuregs_set(struct task_struct *target,
- const struct user_regset *regset,
- unsigned int pos, unsigned int count,
- const void *kbuf, const void __user *ubuf)
-{
- struct fpu_state_struct fpu_state = target->thread.fpu_state;
- int ret;
-
- ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
- &fpu_state, 0, sizeof(fpu_state));
- if (ret < 0)
- return ret;
-
- fpu_kill_state(target);
- target->thread.fpu_state = fpu_state;
- set_using_fpu(target);
-
- return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
- sizeof(fpu_state), -1);
-}
-
-/*
- * determine if the FPU registers have actually been used
- */
-static int fpuregs_active(struct task_struct *target,
- const struct user_regset *regset)
-{
- return is_using_fpu(target) ? regset->n : 0;
-}
-
-/*
- * Define the register sets available on the MN10300 under Linux
- */
-enum mn10300_regset {
- REGSET_GENERAL,
- REGSET_FPU,
-};
-
-static const struct user_regset mn10300_regsets[] = {
- /*
- * General register format is:
- * A3, A2, D3, D2, MCVF, MCRL, MCRH, MDRQ
- * E1, E0, E7...E2, SP, LAR, LIR, MDR
- * A1, A0, D1, D0, ORIG_D0, EPSW, PC
- */
- [REGSET_GENERAL] = {
- .core_note_type = NT_PRSTATUS,
- .n = ELF_NGREG,
- .size = sizeof(long),
- .align = sizeof(long),
- .get = genregs_get,
- .set = genregs_set,
- },
- /*
- * FPU register format is:
- * FS0-31, FPCR
- */
- [REGSET_FPU] = {
- .core_note_type = NT_PRFPREG,
- .n = sizeof(struct fpu_state_struct) / sizeof(long),
- .size = sizeof(long),
- .align = sizeof(long),
- .get = fpuregs_get,
- .set = fpuregs_set,
- .active = fpuregs_active,
- },
-};
-
-static const struct user_regset_view user_mn10300_native_view = {
- .name = "mn10300",
- .e_machine = EM_MN10300,
- .regsets = mn10300_regsets,
- .n = ARRAY_SIZE(mn10300_regsets),
-};
-
-const struct user_regset_view *task_user_regset_view(struct task_struct *task)
-{
- return &user_mn10300_native_view;
-}
-
-/*
- * set the single-step bit
- */
-void user_enable_single_step(struct task_struct *child)
-{
-#ifndef CONFIG_MN10300_USING_JTAG
- struct user *dummy = NULL;
- long tmp;
-
- tmp = get_stack_long(child, (unsigned long) &dummy->regs.epsw);
- tmp |= EPSW_T;
- put_stack_long(child, (unsigned long) &dummy->regs.epsw, tmp);
-#endif
-}
-
-/*
- * make sure the single-step bit is not set
- */
-void user_disable_single_step(struct task_struct *child)
-{
-#ifndef CONFIG_MN10300_USING_JTAG
- struct user *dummy = NULL;
- long tmp;
-
- tmp = get_stack_long(child, (unsigned long) &dummy->regs.epsw);
- tmp &= ~EPSW_T;
- put_stack_long(child, (unsigned long) &dummy->regs.epsw, tmp);
-#endif
-}
-
-void ptrace_disable(struct task_struct *child)
-{
- user_disable_single_step(child);
-}
-
-/*
- * handle the arch-specific side of process tracing
- */
-long arch_ptrace(struct task_struct *child, long request,
- unsigned long addr, unsigned long data)
-{
- unsigned long tmp;
- int ret;
- unsigned long __user *datap = (unsigned long __user *) data;
-
- switch (request) {
- /* read the word at location addr in the USER area. */
- case PTRACE_PEEKUSR:
- ret = -EIO;
- if ((addr & 3) || addr > sizeof(struct user) - 3)
- break;
-
- tmp = 0; /* Default return condition */
- if (addr < NR_PTREGS << 2)
- tmp = get_stack_long(child,
- ptrace_regid_to_frame[addr]);
- ret = put_user(tmp, datap);
- break;
-
- /* write the word at location addr in the USER area */
- case PTRACE_POKEUSR:
- ret = -EIO;
- if ((addr & 3) || addr > sizeof(struct user) - 3)
- break;
-
- ret = 0;
- if (addr < NR_PTREGS << 2)
- ret = put_stack_long(child, ptrace_regid_to_frame[addr],
- data);
- break;
-
- case PTRACE_GETREGS: /* Get all integer regs from the child. */
- return copy_regset_to_user(child, &user_mn10300_native_view,
- REGSET_GENERAL,
- 0, NR_PTREGS * sizeof(long),
- datap);
-
- case PTRACE_SETREGS: /* Set all integer regs in the child. */
- return copy_regset_from_user(child, &user_mn10300_native_view,
- REGSET_GENERAL,
- 0, NR_PTREGS * sizeof(long),
- datap);
-
- case PTRACE_GETFPREGS: /* Get the child FPU state. */
- return copy_regset_to_user(child, &user_mn10300_native_view,
- REGSET_FPU,
- 0, sizeof(struct fpu_state_struct),
- datap);
-
- case PTRACE_SETFPREGS: /* Set the child FPU state. */
- return copy_regset_from_user(child, &user_mn10300_native_view,
- REGSET_FPU,
- 0, sizeof(struct fpu_state_struct),
- datap);
-
- default:
- ret = ptrace_request(child, request, addr, data);
- break;
- }
-
- return ret;
-}
-
-/*
- * handle tracing of system call entry
- * - return the revised system call number or ULONG_MAX to cause ENOSYS
- */
-asmlinkage unsigned long syscall_trace_entry(struct pt_regs *regs)
-{
- if (tracehook_report_syscall_entry(regs))
- /* tracing decided this syscall should not happen, so
- * We'll return a bogus call number to get an ENOSYS
- * error, but leave the original number in
- * regs->orig_d0
- */
- return ULONG_MAX;
-
- return regs->orig_d0;
-}
-
-/*
- * handle tracing of system call exit
- */
-asmlinkage void syscall_trace_exit(struct pt_regs *regs)
-{
- tracehook_report_syscall_exit(regs, 0);
-}
+++ /dev/null
-/* MN10300 RTC management
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/mc146818rtc.h>
-#include <linux/ioport.h>
-#include <linux/platform_device.h>
-
-#include <asm/rtc-regs.h>
-#include <asm/rtc.h>
-
-DEFINE_SPINLOCK(rtc_lock);
-EXPORT_SYMBOL(rtc_lock);
-
-static const __initdata struct resource res[] = {
- DEFINE_RES_IO(RTC_PORT(0), RTC_IO_EXTENT),
- DEFINE_RES_IRQ(RTC_IRQ),
-};
-
-/*
- * calibrate the TSC clock against the RTC
- */
-void __init calibrate_clock(void)
-{
- unsigned char status;
-
- /* make sure the RTC is running and is set to operate in 24hr mode */
- status = RTSRC;
- RTCRB |= RTCRB_SET;
- RTCRB |= RTCRB_TM_24HR;
- RTCRB &= ~RTCRB_DM_BINARY;
- RTCRA |= RTCRA_DVR;
- RTCRA &= ~RTCRA_DVR;
- RTCRB &= ~RTCRB_SET;
-
- platform_device_register_simple("rtc_cmos", -1, res, ARRAY_SIZE(res));
-}
+++ /dev/null
-/* MN10300 Arch-specific initialisation
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/tty.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-#include <linux/seq_file.h>
-#include <linux/cpu.h>
-#include <asm/processor.h>
-#include <linux/console.h>
-#include <linux/uaccess.h>
-#include <asm/setup.h>
-#include <asm/io.h>
-#include <asm/smp.h>
-#include <proc/proc.h>
-#include <asm/fpu.h>
-#include <asm/sections.h>
-
-struct mn10300_cpuinfo boot_cpu_data;
-
-static char __initdata cmd_line[COMMAND_LINE_SIZE];
-char redboot_command_line[COMMAND_LINE_SIZE] =
- "console=ttyS0,115200 root=/dev/mtdblock3 rw";
-
-char __initdata redboot_platform_name[COMMAND_LINE_SIZE];
-
-static struct resource code_resource = {
- .start = 0x100000,
- .end = 0,
- .name = "Kernel code",
-};
-
-static struct resource data_resource = {
- .start = 0,
- .end = 0,
- .name = "Kernel data",
-};
-
-static unsigned long __initdata phys_memory_base;
-static unsigned long __initdata phys_memory_end;
-static unsigned long __initdata memory_end;
-unsigned long memory_size;
-
-struct thread_info *__current_ti = &init_thread_union.thread_info;
-struct task_struct *__current = &init_task;
-
-#define mn10300_known_cpus 5
-static const char *const mn10300_cputypes[] = {
- "am33-1",
- "am33-2",
- "am34-1",
- "am33-3",
- "am34-2",
- "unknown"
-};
-
-/*
- * Pick out the memory size. We look for mem=size,
- * where size is "size[KkMm]"
- */
-static int __init early_mem(char *p)
-{
- memory_size = memparse(p, &p);
-
- if (memory_size == 0)
- panic("Memory size not known\n");
-
- return 0;
-}
-early_param("mem", early_mem);
-
-/*
- * architecture specific setup
- */
-void __init setup_arch(char **cmdline_p)
-{
- unsigned long bootmap_size;
- unsigned long kstart_pfn, start_pfn, free_pfn, end_pfn;
-
- cpu_init();
- unit_setup();
- smp_init_cpus();
-
- /* save unparsed command line copy for /proc/cmdline */
- strlcpy(boot_command_line, redboot_command_line, COMMAND_LINE_SIZE);
-
- /* populate cmd_line too for later use, preserving boot_command_line */
- strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE);
- *cmdline_p = cmd_line;
-
- parse_early_param();
-
- memory_end = (unsigned long) CONFIG_KERNEL_RAM_BASE_ADDRESS +
- memory_size;
- if (memory_end > phys_memory_end)
- memory_end = phys_memory_end;
-
- init_mm.start_code = (unsigned long)&_text;
- init_mm.end_code = (unsigned long) &_etext;
- init_mm.end_data = (unsigned long) &_edata;
- init_mm.brk = (unsigned long) &_end;
-
- code_resource.start = virt_to_bus(&_text);
- code_resource.end = virt_to_bus(&_etext)-1;
- data_resource.start = virt_to_bus(&_etext);
- data_resource.end = virt_to_bus(&_edata)-1;
-
- start_pfn = (CONFIG_KERNEL_RAM_BASE_ADDRESS >> PAGE_SHIFT);
- kstart_pfn = PFN_UP(__pa(&_text));
- free_pfn = PFN_UP(__pa(&_end));
- end_pfn = PFN_DOWN(__pa(memory_end));
-
- bootmap_size = init_bootmem_node(&contig_page_data,
- free_pfn,
- start_pfn,
- end_pfn);
-
- if (kstart_pfn > start_pfn)
- free_bootmem(PFN_PHYS(start_pfn),
- PFN_PHYS(kstart_pfn - start_pfn));
-
- free_bootmem(PFN_PHYS(free_pfn),
- PFN_PHYS(end_pfn - free_pfn));
-
- /* If interrupt vector table is in main ram, then we need to
- reserve the page it is occupying. */
- if (CONFIG_INTERRUPT_VECTOR_BASE >= CONFIG_KERNEL_RAM_BASE_ADDRESS &&
- CONFIG_INTERRUPT_VECTOR_BASE < memory_end)
- reserve_bootmem(CONFIG_INTERRUPT_VECTOR_BASE, PAGE_SIZE,
- BOOTMEM_DEFAULT);
-
- reserve_bootmem(PAGE_ALIGN(PFN_PHYS(free_pfn)), bootmap_size,
- BOOTMEM_DEFAULT);
-
-#ifdef CONFIG_VT
-#if defined(CONFIG_VGA_CONSOLE)
- conswitchp = &vga_con;
-#elif defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
-#endif
-#endif
-
- paging_init();
-}
-
-/*
- * perform CPU initialisation
- */
-void __init cpu_init(void)
-{
- unsigned long cpurev = CPUREV, type;
-
- type = (CPUREV & CPUREV_TYPE) >> CPUREV_TYPE_S;
- if (type > mn10300_known_cpus)
- type = mn10300_known_cpus;
-
- printk(KERN_INFO "Panasonic %s, rev %ld\n",
- mn10300_cputypes[type],
- (cpurev & CPUREV_REVISION) >> CPUREV_REVISION_S);
-
- get_mem_info(&phys_memory_base, &memory_size);
- phys_memory_end = phys_memory_base + memory_size;
-
- fpu_init_state();
-}
-
-static struct cpu cpu_devices[NR_CPUS];
-
-static int __init topology_init(void)
-{
- int i;
-
- for_each_present_cpu(i)
- register_cpu(&cpu_devices[i], i);
-
- return 0;
-}
-
-subsys_initcall(topology_init);
-
-/*
- * Get CPU information for use by the procfs.
- */
-static int show_cpuinfo(struct seq_file *m, void *v)
-{
-#ifdef CONFIG_SMP
- struct mn10300_cpuinfo *c = v;
- unsigned long cpu_id = c - cpu_data;
- unsigned long cpurev = c->type, type, icachesz, dcachesz;
-#else /* CONFIG_SMP */
- unsigned long cpu_id = 0;
- unsigned long cpurev = CPUREV, type, icachesz, dcachesz;
-#endif /* CONFIG_SMP */
-
-#ifdef CONFIG_SMP
- if (!cpu_online(cpu_id))
- return 0;
-#endif
-
- type = (cpurev & CPUREV_TYPE) >> CPUREV_TYPE_S;
- if (type > mn10300_known_cpus)
- type = mn10300_known_cpus;
-
- icachesz =
- ((cpurev & CPUREV_ICWAY ) >> CPUREV_ICWAY_S) *
- ((cpurev & CPUREV_ICSIZE) >> CPUREV_ICSIZE_S) *
- 1024;
-
- dcachesz =
- ((cpurev & CPUREV_DCWAY ) >> CPUREV_DCWAY_S) *
- ((cpurev & CPUREV_DCSIZE) >> CPUREV_DCSIZE_S) *
- 1024;
-
- seq_printf(m,
- "processor : %ld\n"
- "vendor_id : " PROCESSOR_VENDOR_NAME "\n"
- "cpu core : %s\n"
- "cpu rev : %lu\n"
- "model name : " PROCESSOR_MODEL_NAME "\n"
- "icache size: %lu\n"
- "dcache size: %lu\n",
- cpu_id,
- mn10300_cputypes[type],
- (cpurev & CPUREV_REVISION) >> CPUREV_REVISION_S,
- icachesz,
- dcachesz
- );
-
- seq_printf(m,
- "ioclk speed: %lu.%02luMHz\n"
- "bogomips : %lu.%02lu\n\n",
- MN10300_IOCLK / 1000000,
- (MN10300_IOCLK / 10000) % 100,
-#ifdef CONFIG_SMP
- c->loops_per_jiffy / (500000 / HZ),
- (c->loops_per_jiffy / (5000 / HZ)) % 100
-#else /* CONFIG_SMP */
- loops_per_jiffy / (500000 / HZ),
- (loops_per_jiffy / (5000 / HZ)) % 100
-#endif /* CONFIG_SMP */
- );
-
- return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
- return *pos < NR_CPUS ? cpu_data + *pos : NULL;
-}
-
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
- ++*pos;
- return c_start(m, pos);
-}
-
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-
-const struct seq_operations cpuinfo_op = {
- .start = c_start,
- .next = c_next,
- .stop = c_stop,
- .show = show_cpuinfo,
-};
+++ /dev/null
-/* MN10300 Signal frame definitions
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-struct sigframe
-{
- void (*pretcode)(void);
- int sig;
- struct sigcontext *psc;
- struct sigcontext sc;
- struct fpucontext fpuctx;
- unsigned long extramask[_NSIG_WORDS-1];
- char retcode[8];
-};
-
-struct rt_sigframe
-{
- void (*pretcode)(void);
- int sig;
- struct siginfo *pinfo;
- void *puc;
- struct siginfo info;
- struct ucontext uc;
- struct fpucontext fpuctx;
- char retcode[8];
-};
+++ /dev/null
-/* MN10300 Signal handling
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/errno.h>
-#include <linux/wait.h>
-#include <linux/ptrace.h>
-#include <linux/unistd.h>
-#include <linux/stddef.h>
-#include <linux/tty.h>
-#include <linux/personality.h>
-#include <linux/suspend.h>
-#include <linux/tracehook.h>
-#include <asm/cacheflush.h>
-#include <asm/ucontext.h>
-#include <linux/uaccess.h>
-#include <asm/fpu.h>
-#include "sigframe.h"
-
-#define DEBUG_SIG 0
-
-/*
- * do a signal return; undo the signal stack.
- */
-static int restore_sigcontext(struct pt_regs *regs,
- struct sigcontext __user *sc, long *_d0)
-{
- unsigned int err = 0;
-
- /* Always make any pending restarted system calls return -EINTR */
- current->restart_block.fn = do_no_restart_syscall;
-
- if (is_using_fpu(current))
- fpu_kill_state(current);
-
-#define COPY(x) err |= __get_user(regs->x, &sc->x)
- COPY(d1); COPY(d2); COPY(d3);
- COPY(a0); COPY(a1); COPY(a2); COPY(a3);
- COPY(e0); COPY(e1); COPY(e2); COPY(e3);
- COPY(e4); COPY(e5); COPY(e6); COPY(e7);
- COPY(lar); COPY(lir);
- COPY(mdr); COPY(mdrq);
- COPY(mcvf); COPY(mcrl); COPY(mcrh);
- COPY(sp); COPY(pc);
-#undef COPY
-
- {
- unsigned int tmpflags;
-#ifndef CONFIG_MN10300_USING_JTAG
-#define USER_EPSW (EPSW_FLAG_Z | EPSW_FLAG_N | EPSW_FLAG_C | EPSW_FLAG_V | \
- EPSW_T | EPSW_nAR)
-#else
-#define USER_EPSW (EPSW_FLAG_Z | EPSW_FLAG_N | EPSW_FLAG_C | EPSW_FLAG_V | \
- EPSW_nAR)
-#endif
- err |= __get_user(tmpflags, &sc->epsw);
- regs->epsw = (regs->epsw & ~USER_EPSW) |
- (tmpflags & USER_EPSW);
- regs->orig_d0 = -1; /* disable syscall checks */
- }
-
- {
- struct fpucontext *buf;
- err |= __get_user(buf, &sc->fpucontext);
- if (buf) {
- if (!access_ok(VERIFY_READ, buf, sizeof(*buf)))
- goto badframe;
- err |= fpu_restore_sigcontext(buf);
- }
- }
-
- err |= __get_user(*_d0, &sc->d0);
- return err;
-
-badframe:
- return 1;
-}
-
-/*
- * standard signal return syscall
- */
-asmlinkage long sys_sigreturn(void)
-{
- struct sigframe __user *frame;
- sigset_t set;
- long d0;
-
- frame = (struct sigframe __user *) current_frame()->sp;
- if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
- goto badframe;
- if (__get_user(set.sig[0], &frame->sc.oldmask))
- goto badframe;
-
- if (_NSIG_WORDS > 1 &&
- __copy_from_user(&set.sig[1], &frame->extramask,
- sizeof(frame->extramask)))
- goto badframe;
-
- set_current_blocked(&set);
-
- if (restore_sigcontext(current_frame(), &frame->sc, &d0))
- goto badframe;
-
- return d0;
-
-badframe:
- force_sig(SIGSEGV, current);
- return 0;
-}
-
-/*
- * realtime signal return syscall
- */
-asmlinkage long sys_rt_sigreturn(void)
-{
- struct rt_sigframe __user *frame;
- sigset_t set;
- long d0;
-
- frame = (struct rt_sigframe __user *) current_frame()->sp;
- if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
- goto badframe;
- if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
- goto badframe;
-
- set_current_blocked(&set);
-
- if (restore_sigcontext(current_frame(), &frame->uc.uc_mcontext, &d0))
- goto badframe;
-
- if (restore_altstack(&frame->uc.uc_stack))
- goto badframe;
-
- return d0;
-
-badframe:
- force_sig(SIGSEGV, current);
- return 0;
-}
-
-/*
- * store the userspace context into a signal frame
- */
-static int setup_sigcontext(struct sigcontext __user *sc,
- struct fpucontext *fpuctx,
- struct pt_regs *regs,
- unsigned long mask)
-{
- int tmp, err = 0;
-
-#define COPY(x) err |= __put_user(regs->x, &sc->x)
- COPY(d0); COPY(d1); COPY(d2); COPY(d3);
- COPY(a0); COPY(a1); COPY(a2); COPY(a3);
- COPY(e0); COPY(e1); COPY(e2); COPY(e3);
- COPY(e4); COPY(e5); COPY(e6); COPY(e7);
- COPY(lar); COPY(lir);
- COPY(mdr); COPY(mdrq);
- COPY(mcvf); COPY(mcrl); COPY(mcrh);
- COPY(sp); COPY(epsw); COPY(pc);
-#undef COPY
-
- tmp = fpu_setup_sigcontext(fpuctx);
- if (tmp < 0)
- err = 1;
- else
- err |= __put_user(tmp ? fpuctx : NULL, &sc->fpucontext);
-
- /* non-iBCS2 extensions.. */
- err |= __put_user(mask, &sc->oldmask);
-
- return err;
-}
-
-/*
- * determine which stack to use..
- */
-static inline void __user *get_sigframe(struct ksignal *ksig,
- struct pt_regs *regs,
- size_t frame_size)
-{
- unsigned long sp = sigsp(regs->sp, ksig);
-
- return (void __user *) ((sp - frame_size) & ~7UL);
-}
-
-/*
- * set up a normal signal frame
- */
-static int setup_frame(struct ksignal *ksig, sigset_t *set,
- struct pt_regs *regs)
-{
- struct sigframe __user *frame;
- int sig = ksig->sig;
-
- frame = get_sigframe(ksig, regs, sizeof(*frame));
-
- if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
- return -EFAULT;
-
- if (__put_user(sig, &frame->sig) < 0 ||
- __put_user(&frame->sc, &frame->psc) < 0)
- return -EFAULT;
-
- if (setup_sigcontext(&frame->sc, &frame->fpuctx, regs, set->sig[0]))
- return -EFAULT;
-
- if (_NSIG_WORDS > 1) {
- if (__copy_to_user(frame->extramask, &set->sig[1],
- sizeof(frame->extramask)))
- return -EFAULT;
- }
-
- /* set up to return from userspace. If provided, use a stub already in
- * userspace */
- if (ksig->ka.sa.sa_flags & SA_RESTORER) {
- if (__put_user(ksig->ka.sa.sa_restorer, &frame->pretcode))
- return -EFAULT;
- } else {
- if (__put_user((void (*)(void))frame->retcode,
- &frame->pretcode))
- return -EFAULT;
- /* this is mov $,d0; syscall 0 */
- if (__put_user(0x2c, (char *)(frame->retcode + 0)) ||
- __put_user(__NR_sigreturn, (char *)(frame->retcode + 1)) ||
- __put_user(0x00, (char *)(frame->retcode + 2)) ||
- __put_user(0xf0, (char *)(frame->retcode + 3)) ||
- __put_user(0xe0, (char *)(frame->retcode + 4)))
- return -EFAULT;
- flush_icache_range((unsigned long) frame->retcode,
- (unsigned long) frame->retcode + 5);
- }
-
- /* set up registers for signal handler */
- regs->sp = (unsigned long) frame;
- regs->pc = (unsigned long) ksig->ka.sa.sa_handler;
- regs->d0 = sig;
- regs->d1 = (unsigned long) &frame->sc;
-
-#if DEBUG_SIG
- printk(KERN_DEBUG "SIG deliver %d (%s:%d): sp=%p pc=%lx ra=%p\n",
- sig, current->comm, current->pid, frame, regs->pc,
- frame->pretcode);
-#endif
-
- return 0;
-}
-
-/*
- * set up a realtime signal frame
- */
-static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
- struct pt_regs *regs)
-{
- struct rt_sigframe __user *frame;
- int sig = ksig->sig;
-
- frame = get_sigframe(ksig, regs, sizeof(*frame));
-
- if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
- return -EFAULT;
-
- if (__put_user(sig, &frame->sig) ||
- __put_user(&frame->info, &frame->pinfo) ||
- __put_user(&frame->uc, &frame->puc) ||
- copy_siginfo_to_user(&frame->info, &ksig->info))
- return -EFAULT;
-
- /* create the ucontext. */
- if (__put_user(0, &frame->uc.uc_flags) ||
- __put_user(0, &frame->uc.uc_link) ||
- __save_altstack(&frame->uc.uc_stack, regs->sp) ||
- setup_sigcontext(&frame->uc.uc_mcontext,
- &frame->fpuctx, regs, set->sig[0]) ||
- __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)))
- return -EFAULT;
-
- /* set up to return from userspace. If provided, use a stub already in
- * userspace */
- if (ksig->ka.sa.sa_flags & SA_RESTORER) {
- if (__put_user(ksig->ka.sa.sa_restorer, &frame->pretcode))
- return -EFAULT;
-
- } else {
- if (__put_user((void(*)(void))frame->retcode,
- &frame->pretcode) ||
- /* This is mov $,d0; syscall 0 */
- __put_user(0x2c, (char *)(frame->retcode + 0)) ||
- __put_user(__NR_rt_sigreturn,
- (char *)(frame->retcode + 1)) ||
- __put_user(0x00, (char *)(frame->retcode + 2)) ||
- __put_user(0xf0, (char *)(frame->retcode + 3)) ||
- __put_user(0xe0, (char *)(frame->retcode + 4)))
- return -EFAULT;
-
- flush_icache_range((u_long) frame->retcode,
- (u_long) frame->retcode + 5);
- }
-
- /* Set up registers for signal handler */
- regs->sp = (unsigned long) frame;
- regs->pc = (unsigned long) ksig->ka.sa.sa_handler;
- regs->d0 = sig;
- regs->d1 = (long) &frame->info;
-
-#if DEBUG_SIG
- printk(KERN_DEBUG "SIG deliver %d (%s:%d): sp=%p pc=%lx ra=%p\n",
- sig, current->comm, current->pid, frame, regs->pc,
- frame->pretcode);
-#endif
-
- return 0;
-}
-
-static inline void stepback(struct pt_regs *regs)
-{
- regs->pc -= 2;
- regs->orig_d0 = -1;
-}
-
-/*
- * handle the actual delivery of a signal to userspace
- */
-static int handle_signal(struct ksignal *ksig, struct pt_regs *regs)
-{
- sigset_t *oldset = sigmask_to_save();
- int ret;
-
- /* Are we from a system call? */
- if (regs->orig_d0 >= 0) {
- /* If so, check system call restarting.. */
- switch (regs->d0) {
- case -ERESTART_RESTARTBLOCK:
- case -ERESTARTNOHAND:
- regs->d0 = -EINTR;
- break;
-
- case -ERESTARTSYS:
- if (!(ksig->ka.sa.sa_flags & SA_RESTART)) {
- regs->d0 = -EINTR;
- break;
- }
-
- /* fallthrough */
- case -ERESTARTNOINTR:
- regs->d0 = regs->orig_d0;
- stepback(regs);
- }
- }
-
- /* Set up the stack frame */
- if (ksig->ka.sa.sa_flags & SA_SIGINFO)
- ret = setup_rt_frame(ksig, oldset, regs);
- else
- ret = setup_frame(ksig, oldset, regs);
-
- signal_setup_done(ret, ksig, test_thread_flag(TIF_SINGLESTEP));
- return 0;
-}
-
-/*
- * handle a potential signal
- */
-static void do_signal(struct pt_regs *regs)
-{
- struct ksignal ksig;
-
- if (get_signal(&ksig)) {
- handle_signal(&ksig, regs);
- return;
- }
-
- /* did we come from a system call? */
- if (regs->orig_d0 >= 0) {
- /* restart the system call - no handlers present */
- switch (regs->d0) {
- case -ERESTARTNOHAND:
- case -ERESTARTSYS:
- case -ERESTARTNOINTR:
- regs->d0 = regs->orig_d0;
- stepback(regs);
- break;
-
- case -ERESTART_RESTARTBLOCK:
- regs->d0 = __NR_restart_syscall;
- stepback(regs);
- break;
- }
- }
-
- /* if there's no signal to deliver, we just put the saved sigmask
- * back */
- restore_saved_sigmask();
-}
-
-/*
- * notification of userspace execution resumption
- * - triggered by current->work.notify_resume
- */
-asmlinkage void do_notify_resume(struct pt_regs *regs, u32 thread_info_flags)
-{
- /* Pending single-step? */
- if (thread_info_flags & _TIF_SINGLESTEP) {
-#ifndef CONFIG_MN10300_USING_JTAG
- regs->epsw |= EPSW_T;
- clear_thread_flag(TIF_SINGLESTEP);
-#else
- BUG(); /* no h/w single-step if using JTAG unit */
-#endif
- }
-
- /* deal with pending signal delivery */
- if (thread_info_flags & _TIF_SIGPENDING)
- do_signal(regs);
-
- if (thread_info_flags & _TIF_NOTIFY_RESUME) {
- clear_thread_flag(TIF_NOTIFY_RESUME);
- tracehook_notify_resume(current_frame());
- }
-}
+++ /dev/null
-/* SMP IPI low-level handler
- *
- * Copyright (C) 2006-2007 Matsushita Electric Industrial Co., Ltd.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/smp.h>
-#include <asm/thread_info.h>
-#include <asm/cpu-regs.h>
-#include <asm/intctl-regs.h>
-#include <proc/smp-regs.h>
-#include <asm/asm-offsets.h>
-#include <asm/frame.inc>
-
- .am33_2
-
-###############################################################################
-#
-# IPI interrupt handler
-#
-###############################################################################
- .globl mn10300_low_ipi_handler
-mn10300_low_ipi_handler:
- add -4,sp
- mov d0,(sp)
- movhu (IAGR),d0
- and IAGR_GN,d0
- lsr 0x2,d0
-#ifdef CONFIG_MN10300_CACHE_ENABLED
- cmp FLUSH_CACHE_IPI,d0
- beq mn10300_flush_cache_ipi
-#endif
- cmp SMP_BOOT_IRQ,d0
- beq mn10300_smp_boot_ipi
- /* OTHERS */
- mov (sp),d0
- add 4,sp
-#ifdef CONFIG_GDBSTUB
- jmp gdbstub_io_rx_handler
-#else
- jmp end
-#endif
-
-###############################################################################
-#
-# Cache flush IPI interrupt handler
-#
-###############################################################################
-#ifdef CONFIG_MN10300_CACHE_ENABLED
-mn10300_flush_cache_ipi:
- mov (sp),d0
- add 4,sp
-
- /* FLUSH_CACHE_IPI */
- add -4,sp
- SAVE_ALL
- mov GxICR_DETECT,d2
- movbu d2,(GxICR(FLUSH_CACHE_IPI)) # ACK the interrupt
- movhu (GxICR(FLUSH_CACHE_IPI)),d2
- call smp_cache_interrupt[],0
- RESTORE_ALL
- jmp end
-#endif
-
-###############################################################################
-#
-# SMP boot CPU IPI interrupt handler
-#
-###############################################################################
-mn10300_smp_boot_ipi:
- /* clear interrupt */
- movhu (GxICR(SMP_BOOT_IRQ)),d0
- and ~GxICR_REQUEST,d0
- movhu d0,(GxICR(SMP_BOOT_IRQ))
- mov (sp),d0
- add 4,sp
-
- # get stack
- mov (CPUID),a0
- add -1,a0
- add a0,a0
- add a0,a0
- mov (start_stack,a0),a0
- mov a0,sp
- jmp initialize_secondary
-
-
-# Jump here after RTI to suppress the icache lookahead
-end:
+++ /dev/null
-/* SMP support routines.
- *
- * Copyright (C) 2006-2008 Panasonic Corporation
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/init.h>
-#include <linux/jiffies.h>
-#include <linux/cpumask.h>
-#include <linux/err.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/sched/mm.h>
-#include <linux/sched/task.h>
-#include <linux/profile.h>
-#include <linux/smp.h>
-#include <linux/cpu.h>
-#include <asm/tlbflush.h>
-#include <asm/bitops.h>
-#include <asm/processor.h>
-#include <asm/bug.h>
-#include <asm/exceptions.h>
-#include <asm/hardirq.h>
-#include <asm/fpu.h>
-#include <asm/mmu_context.h>
-#include <asm/thread_info.h>
-#include <asm/cpu-regs.h>
-#include <asm/intctl-regs.h>
-#include "internal.h"
-
-#ifdef CONFIG_HOTPLUG_CPU
-#include <asm/cacheflush.h>
-
-static unsigned long sleep_mode[NR_CPUS];
-
-static void run_sleep_cpu(unsigned int cpu);
-static void run_wakeup_cpu(unsigned int cpu);
-#endif /* CONFIG_HOTPLUG_CPU */
-
-/*
- * Debug Message function
- */
-
-#undef DEBUG_SMP
-#ifdef DEBUG_SMP
-#define Dprintk(fmt, ...) printk(KERN_DEBUG fmt, ##__VA_ARGS__)
-#else
-#define Dprintk(fmt, ...) no_printk(KERN_DEBUG fmt, ##__VA_ARGS__)
-#endif
-
-/* timeout value in msec for smp_nmi_call_function. zero is no timeout. */
-#define CALL_FUNCTION_NMI_IPI_TIMEOUT 0
-
-/*
- * Structure and data for smp_nmi_call_function().
- */
-struct nmi_call_data_struct {
- smp_call_func_t func;
- void *info;
- cpumask_t started;
- cpumask_t finished;
- int wait;
- char size_alignment[0]
- __attribute__ ((__aligned__(SMP_CACHE_BYTES)));
-} __attribute__ ((__aligned__(SMP_CACHE_BYTES)));
-
-static DEFINE_SPINLOCK(smp_nmi_call_lock);
-static struct nmi_call_data_struct *nmi_call_data;
-
-/*
- * Data structures and variables
- */
-static cpumask_t cpu_callin_map; /* Bitmask of callin CPUs */
-static cpumask_t cpu_callout_map; /* Bitmask of callout CPUs */
-cpumask_t cpu_boot_map; /* Bitmask of boot APs */
-unsigned long start_stack[NR_CPUS - 1];
-
-/*
- * Per CPU parameters
- */
-struct mn10300_cpuinfo cpu_data[NR_CPUS] __cacheline_aligned;
-
-static int cpucount; /* The count of boot CPUs */
-static cpumask_t smp_commenced_mask;
-cpumask_t cpu_initialized __initdata = CPU_MASK_NONE;
-
-/*
- * Function Prototypes
- */
-static int do_boot_cpu(int);
-static void smp_show_cpu_info(int cpu_id);
-static void smp_callin(void);
-static void smp_online(void);
-static void smp_store_cpu_info(int);
-static void smp_cpu_init(void);
-static void smp_tune_scheduling(void);
-static void send_IPI_mask(const cpumask_t *cpumask, int irq);
-static void init_ipi(void);
-
-/*
- * IPI Initialization interrupt definitions
- */
-static void mn10300_ipi_disable(unsigned int irq);
-static void mn10300_ipi_enable(unsigned int irq);
-static void mn10300_ipi_chip_disable(struct irq_data *d);
-static void mn10300_ipi_chip_enable(struct irq_data *d);
-static void mn10300_ipi_ack(struct irq_data *d);
-static void mn10300_ipi_nop(struct irq_data *d);
-
-static struct irq_chip mn10300_ipi_type = {
- .name = "cpu_ipi",
- .irq_disable = mn10300_ipi_chip_disable,
- .irq_enable = mn10300_ipi_chip_enable,
- .irq_ack = mn10300_ipi_ack,
- .irq_eoi = mn10300_ipi_nop
-};
-
-static irqreturn_t smp_reschedule_interrupt(int irq, void *dev_id);
-static irqreturn_t smp_call_function_interrupt(int irq, void *dev_id);
-
-static struct irqaction reschedule_ipi = {
- .handler = smp_reschedule_interrupt,
- .flags = IRQF_NOBALANCING,
- .name = "smp reschedule IPI"
-};
-static struct irqaction call_function_ipi = {
- .handler = smp_call_function_interrupt,
- .flags = IRQF_NOBALANCING,
- .name = "smp call function IPI"
-};
-
-#if !defined(CONFIG_GENERIC_CLOCKEVENTS) || defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
-static irqreturn_t smp_ipi_timer_interrupt(int irq, void *dev_id);
-static struct irqaction local_timer_ipi = {
- .handler = smp_ipi_timer_interrupt,
- .flags = IRQF_NOBALANCING,
- .name = "smp local timer IPI"
-};
-#endif
-
-/**
- * init_ipi - Initialise the IPI mechanism
- */
-static void init_ipi(void)
-{
- unsigned long flags;
- u16 tmp16;
-
- /* set up the reschedule IPI */
- irq_set_chip_and_handler(RESCHEDULE_IPI, &mn10300_ipi_type,
- handle_percpu_irq);
- setup_irq(RESCHEDULE_IPI, &reschedule_ipi);
- set_intr_level(RESCHEDULE_IPI, RESCHEDULE_GxICR_LV);
- mn10300_ipi_enable(RESCHEDULE_IPI);
-
- /* set up the call function IPI */
- irq_set_chip_and_handler(CALL_FUNC_SINGLE_IPI, &mn10300_ipi_type,
- handle_percpu_irq);
- setup_irq(CALL_FUNC_SINGLE_IPI, &call_function_ipi);
- set_intr_level(CALL_FUNC_SINGLE_IPI, CALL_FUNCTION_GxICR_LV);
- mn10300_ipi_enable(CALL_FUNC_SINGLE_IPI);
-
- /* set up the local timer IPI */
-#if !defined(CONFIG_GENERIC_CLOCKEVENTS) || \
- defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
- irq_set_chip_and_handler(LOCAL_TIMER_IPI, &mn10300_ipi_type,
- handle_percpu_irq);
- setup_irq(LOCAL_TIMER_IPI, &local_timer_ipi);
- set_intr_level(LOCAL_TIMER_IPI, LOCAL_TIMER_GxICR_LV);
- mn10300_ipi_enable(LOCAL_TIMER_IPI);
-#endif
-
-#ifdef CONFIG_MN10300_CACHE_ENABLED
- /* set up the cache flush IPI */
- irq_set_chip(FLUSH_CACHE_IPI, &mn10300_ipi_type);
- flags = arch_local_cli_save();
- __set_intr_stub(NUM2EXCEP_IRQ_LEVEL(FLUSH_CACHE_GxICR_LV),
- mn10300_low_ipi_handler);
- GxICR(FLUSH_CACHE_IPI) = FLUSH_CACHE_GxICR_LV | GxICR_DETECT;
- mn10300_ipi_enable(FLUSH_CACHE_IPI);
- arch_local_irq_restore(flags);
-#endif
-
- /* set up the NMI call function IPI */
- irq_set_chip(CALL_FUNCTION_NMI_IPI, &mn10300_ipi_type);
- flags = arch_local_cli_save();
- GxICR(CALL_FUNCTION_NMI_IPI) = GxICR_NMI | GxICR_ENABLE | GxICR_DETECT;
- tmp16 = GxICR(CALL_FUNCTION_NMI_IPI);
- arch_local_irq_restore(flags);
-
- /* set up the SMP boot IPI */
- flags = arch_local_cli_save();
- __set_intr_stub(NUM2EXCEP_IRQ_LEVEL(SMP_BOOT_GxICR_LV),
- mn10300_low_ipi_handler);
- arch_local_irq_restore(flags);
-
-#ifdef CONFIG_KERNEL_DEBUGGER
- irq_set_chip(DEBUGGER_NMI_IPI, &mn10300_ipi_type);
-#endif
-}
-
-/**
- * mn10300_ipi_shutdown - Shut down handling of an IPI
- * @irq: The IPI to be shut down.
- */
-static void mn10300_ipi_shutdown(unsigned int irq)
-{
- unsigned long flags;
- u16 tmp;
-
- flags = arch_local_cli_save();
-
- tmp = GxICR(irq);
- GxICR(irq) = (tmp & GxICR_LEVEL) | GxICR_DETECT;
- tmp = GxICR(irq);
-
- arch_local_irq_restore(flags);
-}
-
-/**
- * mn10300_ipi_enable - Enable an IPI
- * @irq: The IPI to be enabled.
- */
-static void mn10300_ipi_enable(unsigned int irq)
-{
- unsigned long flags;
- u16 tmp;
-
- flags = arch_local_cli_save();
-
- tmp = GxICR(irq);
- GxICR(irq) = (tmp & GxICR_LEVEL) | GxICR_ENABLE;
- tmp = GxICR(irq);
-
- arch_local_irq_restore(flags);
-}
-
-static void mn10300_ipi_chip_enable(struct irq_data *d)
-{
- mn10300_ipi_enable(d->irq);
-}
-
-/**
- * mn10300_ipi_disable - Disable an IPI
- * @irq: The IPI to be disabled.
- */
-static void mn10300_ipi_disable(unsigned int irq)
-{
- unsigned long flags;
- u16 tmp;
-
- flags = arch_local_cli_save();
-
- tmp = GxICR(irq);
- GxICR(irq) = tmp & GxICR_LEVEL;
- tmp = GxICR(irq);
-
- arch_local_irq_restore(flags);
-}
-
-static void mn10300_ipi_chip_disable(struct irq_data *d)
-{
- mn10300_ipi_disable(d->irq);
-}
-
-
-/**
- * mn10300_ipi_ack - Acknowledge an IPI interrupt in the PIC
- * @irq: The IPI to be acknowledged.
- *
- * Clear the interrupt detection flag for the IPI on the appropriate interrupt
- * channel in the PIC.
- */
-static void mn10300_ipi_ack(struct irq_data *d)
-{
- unsigned int irq = d->irq;
- unsigned long flags;
- u16 tmp;
-
- flags = arch_local_cli_save();
- GxICR_u8(irq) = GxICR_DETECT;
- tmp = GxICR(irq);
- arch_local_irq_restore(flags);
-}
-
-/**
- * mn10300_ipi_nop - Dummy IPI action
- * @irq: The IPI to be acted upon.
- */
-static void mn10300_ipi_nop(struct irq_data *d)
-{
-}
-
-/**
- * send_IPI_mask - Send IPIs to all CPUs in list
- * @cpumask: The list of CPUs to target.
- * @irq: The IPI request to be sent.
- *
- * Send the specified IPI to all the CPUs in the list, not waiting for them to
- * finish before returning. The caller is responsible for synchronisation if
- * that is needed.
- */
-static void send_IPI_mask(const cpumask_t *cpumask, int irq)
-{
- int i;
- u16 tmp;
-
- for (i = 0; i < NR_CPUS; i++) {
- if (cpumask_test_cpu(i, cpumask)) {
- /* send IPI */
- tmp = CROSS_GxICR(irq, i);
- CROSS_GxICR(irq, i) =
- tmp | GxICR_REQUEST | GxICR_DETECT;
- tmp = CROSS_GxICR(irq, i); /* flush write buffer */
- }
- }
-}
-
-/**
- * send_IPI_self - Send an IPI to this CPU.
- * @irq: The IPI request to be sent.
- *
- * Send the specified IPI to the current CPU.
- */
-void send_IPI_self(int irq)
-{
- send_IPI_mask(cpumask_of(smp_processor_id()), irq);
-}
-
-/**
- * send_IPI_allbutself - Send IPIs to all the other CPUs.
- * @irq: The IPI request to be sent.
- *
- * Send the specified IPI to all CPUs in the system barring the current one,
- * not waiting for them to finish before returning. The caller is responsible
- * for synchronisation if that is needed.
- */
-void send_IPI_allbutself(int irq)
-{
- cpumask_t cpumask;
-
- cpumask_copy(&cpumask, cpu_online_mask);
- cpumask_clear_cpu(smp_processor_id(), &cpumask);
- send_IPI_mask(&cpumask, irq);
-}
-
-void arch_send_call_function_ipi_mask(const struct cpumask *mask)
-{
- BUG();
- /*send_IPI_mask(mask, CALL_FUNCTION_IPI);*/
-}
-
-void arch_send_call_function_single_ipi(int cpu)
-{
- send_IPI_mask(cpumask_of(cpu), CALL_FUNC_SINGLE_IPI);
-}
-
-/**
- * smp_send_reschedule - Send reschedule IPI to a CPU
- * @cpu: The CPU to target.
- */
-void smp_send_reschedule(int cpu)
-{
- send_IPI_mask(cpumask_of(cpu), RESCHEDULE_IPI);
-}
-
-/**
- * smp_nmi_call_function - Send a call function NMI IPI to all CPUs
- * @func: The function to ask to be run.
- * @info: The context data to pass to that function.
- * @wait: If true, wait (atomically) until function is run on all CPUs.
- *
- * Send a non-maskable request to all CPUs in the system, requesting them to
- * run the specified function with the given context data, and, potentially, to
- * wait for completion of that function on all CPUs.
- *
- * Returns 0 if successful, -ETIMEDOUT if we were asked to wait, but hit the
- * timeout.
- */
-int smp_nmi_call_function(smp_call_func_t func, void *info, int wait)
-{
- struct nmi_call_data_struct data;
- unsigned long flags;
- unsigned int cnt;
- int cpus, ret = 0;
-
- cpus = num_online_cpus() - 1;
- if (cpus < 1)
- return 0;
-
- data.func = func;
- data.info = info;
- cpumask_copy(&data.started, cpu_online_mask);
- cpumask_clear_cpu(smp_processor_id(), &data.started);
- data.wait = wait;
- if (wait)
- data.finished = data.started;
-
- spin_lock_irqsave(&smp_nmi_call_lock, flags);
- nmi_call_data = &data;
- smp_mb();
-
- /* Send a message to all other CPUs and wait for them to respond */
- send_IPI_allbutself(CALL_FUNCTION_NMI_IPI);
-
- /* Wait for response */
- if (CALL_FUNCTION_NMI_IPI_TIMEOUT > 0) {
- for (cnt = 0;
- cnt < CALL_FUNCTION_NMI_IPI_TIMEOUT &&
- !cpumask_empty(&data.started);
- cnt++)
- mdelay(1);
-
- if (wait && cnt < CALL_FUNCTION_NMI_IPI_TIMEOUT) {
- for (cnt = 0;
- cnt < CALL_FUNCTION_NMI_IPI_TIMEOUT &&
- !cpumask_empty(&data.finished);
- cnt++)
- mdelay(1);
- }
-
- if (cnt >= CALL_FUNCTION_NMI_IPI_TIMEOUT)
- ret = -ETIMEDOUT;
-
- } else {
- /* If timeout value is zero, wait until cpumask has been
- * cleared */
- while (!cpumask_empty(&data.started))
- barrier();
- if (wait)
- while (!cpumask_empty(&data.finished))
- barrier();
- }
-
- spin_unlock_irqrestore(&smp_nmi_call_lock, flags);
- return ret;
-}
-
-/**
- * smp_jump_to_debugger - Make other CPUs enter the debugger by sending an IPI
- *
- * Send a non-maskable request to all other CPUs in the system, instructing
- * them to jump into the debugger. The caller is responsible for checking that
- * the other CPUs responded to the instruction.
- *
- * The caller should make sure that this CPU's debugger IPI is disabled.
- */
-void smp_jump_to_debugger(void)
-{
- if (num_online_cpus() > 1)
- /* Send a message to all other CPUs */
- send_IPI_allbutself(DEBUGGER_NMI_IPI);
-}
-
-/**
- * stop_this_cpu - Callback to stop a CPU.
- * @unused: Callback context (ignored).
- */
-void stop_this_cpu(void *unused)
-{
- static volatile int stopflag;
- unsigned long flags;
-
-#ifdef CONFIG_GDBSTUB
- /* In case of single stepping smp_send_stop by other CPU,
- * clear procindebug to avoid deadlock.
- */
- atomic_set(&procindebug[smp_processor_id()], 0);
-#endif /* CONFIG_GDBSTUB */
-
- flags = arch_local_cli_save();
- set_cpu_online(smp_processor_id(), false);
-
- while (!stopflag)
- cpu_relax();
-
- set_cpu_online(smp_processor_id(), true);
- arch_local_irq_restore(flags);
-}
-
-/**
- * smp_send_stop - Send a stop request to all CPUs.
- */
-void smp_send_stop(void)
-{
- smp_nmi_call_function(stop_this_cpu, NULL, 0);
-}
-
-/**
- * smp_reschedule_interrupt - Reschedule IPI handler
- * @irq: The interrupt number.
- * @dev_id: The device ID.
- *
- * Returns IRQ_HANDLED to indicate we handled the interrupt successfully.
- */
-static irqreturn_t smp_reschedule_interrupt(int irq, void *dev_id)
-{
- scheduler_ipi();
- return IRQ_HANDLED;
-}
-
-/**
- * smp_call_function_interrupt - Call function IPI handler
- * @irq: The interrupt number.
- * @dev_id: The device ID.
- *
- * Returns IRQ_HANDLED to indicate we handled the interrupt successfully.
- */
-static irqreturn_t smp_call_function_interrupt(int irq, void *dev_id)
-{
- /* generic_smp_call_function_interrupt(); */
- generic_smp_call_function_single_interrupt();
- return IRQ_HANDLED;
-}
-
-/**
- * smp_nmi_call_function_interrupt - Non-maskable call function IPI handler
- */
-void smp_nmi_call_function_interrupt(void)
-{
- smp_call_func_t func = nmi_call_data->func;
- void *info = nmi_call_data->info;
- int wait = nmi_call_data->wait;
-
- /* Notify the initiating CPU that I've grabbed the data and am about to
- * execute the function
- */
- smp_mb();
- cpumask_clear_cpu(smp_processor_id(), &nmi_call_data->started);
- (*func)(info);
-
- if (wait) {
- smp_mb();
- cpumask_clear_cpu(smp_processor_id(),
- &nmi_call_data->finished);
- }
-}
-
-#if !defined(CONFIG_GENERIC_CLOCKEVENTS) || \
- defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
-/**
- * smp_ipi_timer_interrupt - Local timer IPI handler
- * @irq: The interrupt number.
- * @dev_id: The device ID.
- *
- * Returns IRQ_HANDLED to indicate we handled the interrupt successfully.
- */
-static irqreturn_t smp_ipi_timer_interrupt(int irq, void *dev_id)
-{
- return local_timer_interrupt();
-}
-#endif
-
-void __init smp_init_cpus(void)
-{
- int i;
- for (i = 0; i < NR_CPUS; i++) {
- set_cpu_possible(i, true);
- set_cpu_present(i, true);
- }
-}
-
-/**
- * smp_cpu_init - Initialise AP in start_secondary.
- *
- * For this Application Processor, set up init_mm, initialise FPU and set
- * interrupt level 0-6 setting.
- */
-static void __init smp_cpu_init(void)
-{
- unsigned long flags;
- int cpu_id = smp_processor_id();
- u16 tmp16;
-
- if (test_and_set_bit(cpu_id, &cpu_initialized)) {
- printk(KERN_WARNING "CPU#%d already initialized!\n", cpu_id);
- for (;;)
- local_irq_enable();
- }
- printk(KERN_INFO "Initializing CPU#%d\n", cpu_id);
-
- mmgrab(&init_mm);
- current->active_mm = &init_mm;
- BUG_ON(current->mm);
-
- enter_lazy_tlb(&init_mm, current);
-
- /* Force FPU initialization */
- clear_using_fpu(current);
-
- GxICR(CALL_FUNC_SINGLE_IPI) = CALL_FUNCTION_GxICR_LV | GxICR_DETECT;
- mn10300_ipi_enable(CALL_FUNC_SINGLE_IPI);
-
- GxICR(LOCAL_TIMER_IPI) = LOCAL_TIMER_GxICR_LV | GxICR_DETECT;
- mn10300_ipi_enable(LOCAL_TIMER_IPI);
-
- GxICR(RESCHEDULE_IPI) = RESCHEDULE_GxICR_LV | GxICR_DETECT;
- mn10300_ipi_enable(RESCHEDULE_IPI);
-
-#ifdef CONFIG_MN10300_CACHE_ENABLED
- GxICR(FLUSH_CACHE_IPI) = FLUSH_CACHE_GxICR_LV | GxICR_DETECT;
- mn10300_ipi_enable(FLUSH_CACHE_IPI);
-#endif
-
- mn10300_ipi_shutdown(SMP_BOOT_IRQ);
-
- /* Set up the non-maskable call function IPI */
- flags = arch_local_cli_save();
- GxICR(CALL_FUNCTION_NMI_IPI) = GxICR_NMI | GxICR_ENABLE | GxICR_DETECT;
- tmp16 = GxICR(CALL_FUNCTION_NMI_IPI);
- arch_local_irq_restore(flags);
-}
-
-/**
- * smp_prepare_cpu_init - Initialise CPU in startup_secondary
- *
- * Set interrupt level 0-6 setting and init ICR of the kernel debugger.
- */
-void smp_prepare_cpu_init(void)
-{
- int loop;
-
- /* Set the interrupt vector registers */
- IVAR0 = EXCEP_IRQ_LEVEL0;
- IVAR1 = EXCEP_IRQ_LEVEL1;
- IVAR2 = EXCEP_IRQ_LEVEL2;
- IVAR3 = EXCEP_IRQ_LEVEL3;
- IVAR4 = EXCEP_IRQ_LEVEL4;
- IVAR5 = EXCEP_IRQ_LEVEL5;
- IVAR6 = EXCEP_IRQ_LEVEL6;
-
- /* Disable all interrupts and set to priority 6 (lowest) */
- for (loop = 0; loop < GxICR_NUM_IRQS; loop++)
- GxICR(loop) = GxICR_LEVEL_6 | GxICR_DETECT;
-
-#ifdef CONFIG_KERNEL_DEBUGGER
- /* initialise the kernel debugger interrupt */
- do {
- unsigned long flags;
- u16 tmp16;
-
- flags = arch_local_cli_save();
- GxICR(DEBUGGER_NMI_IPI) = GxICR_NMI | GxICR_ENABLE | GxICR_DETECT;
- tmp16 = GxICR(DEBUGGER_NMI_IPI);
- arch_local_irq_restore(flags);
- } while (0);
-#endif
-}
-
-/**
- * start_secondary - Activate a secondary CPU (AP)
- * @unused: Thread parameter (ignored).
- */
-int __init start_secondary(void *unused)
-{
- smp_cpu_init();
- smp_callin();
- while (!cpumask_test_cpu(smp_processor_id(), &smp_commenced_mask))
- cpu_relax();
-
- local_flush_tlb();
- preempt_disable();
- smp_online();
-
-#ifdef CONFIG_GENERIC_CLOCKEVENTS
- init_clockevents();
-#endif
- cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
- return 0;
-}
-
-/**
- * smp_prepare_cpus - Boot up secondary CPUs (APs)
- * @max_cpus: Maximum number of CPUs to boot.
- *
- * Call do_boot_cpu, and boot up APs.
- */
-void __init smp_prepare_cpus(unsigned int max_cpus)
-{
- int phy_id;
-
- /* Setup boot CPU information */
- smp_store_cpu_info(0);
- smp_tune_scheduling();
-
- init_ipi();
-
- /* If SMP should be disabled, then finish */
- if (max_cpus == 0) {
- printk(KERN_INFO "SMP mode deactivated.\n");
- goto smp_done;
- }
-
- /* Boot secondary CPUs (for which phy_id > 0) */
- for (phy_id = 0; phy_id < NR_CPUS; phy_id++) {
- /* Don't boot primary CPU */
- if (max_cpus <= cpucount + 1)
- continue;
- if (phy_id != 0)
- do_boot_cpu(phy_id);
- set_cpu_possible(phy_id, true);
- smp_show_cpu_info(phy_id);
- }
-
-smp_done:
- Dprintk("Boot done.\n");
-}
-
-/**
- * smp_store_cpu_info - Save a CPU's information
- * @cpu: The CPU to save for.
- *
- * Save boot_cpu_data and jiffy for the specified CPU.
- */
-static void __init smp_store_cpu_info(int cpu)
-{
- struct mn10300_cpuinfo *ci = &cpu_data[cpu];
-
- *ci = boot_cpu_data;
- ci->loops_per_jiffy = loops_per_jiffy;
- ci->type = CPUREV;
-}
-
-/**
- * smp_tune_scheduling - Set time slice value
- *
- * Nothing to do here.
- */
-static void __init smp_tune_scheduling(void)
-{
-}
-
-/**
- * do_boot_cpu: Boot up one CPU
- * @phy_id: Physical ID of CPU to boot.
- *
- * Send an IPI to a secondary CPU to boot it. Returns 0 on success, 1
- * otherwise.
- */
-static int __init do_boot_cpu(int phy_id)
-{
- struct task_struct *idle;
- unsigned long send_status, callin_status;
- int timeout, cpu_id;
-
- send_status = GxICR_REQUEST;
- callin_status = 0;
- timeout = 0;
- cpu_id = phy_id;
-
- cpucount++;
-
- /* Create idle thread for this CPU */
- idle = fork_idle(cpu_id);
- if (IS_ERR(idle))
- panic("Failed fork for CPU#%d.", cpu_id);
-
- idle->thread.pc = (unsigned long)start_secondary;
-
- printk(KERN_NOTICE "Booting CPU#%d\n", cpu_id);
- start_stack[cpu_id - 1] = idle->thread.sp;
-
- task_thread_info(idle)->cpu = cpu_id;
-
- /* Send boot IPI to AP */
- send_IPI_mask(cpumask_of(phy_id), SMP_BOOT_IRQ);
-
- Dprintk("Waiting for send to finish...\n");
-
- /* Wait for AP's IPI receive in 100[ms] */
- do {
- udelay(1000);
- send_status =
- CROSS_GxICR(SMP_BOOT_IRQ, phy_id) & GxICR_REQUEST;
- } while (send_status == GxICR_REQUEST && timeout++ < 100);
-
- Dprintk("Waiting for cpu_callin_map.\n");
-
- if (send_status == 0) {
- /* Allow AP to start initializing */
- cpumask_set_cpu(cpu_id, &cpu_callout_map);
-
- /* Wait for setting cpu_callin_map */
- timeout = 0;
- do {
- udelay(1000);
- callin_status = cpumask_test_cpu(cpu_id,
- &cpu_callin_map);
- } while (callin_status == 0 && timeout++ < 5000);
-
- if (callin_status == 0)
- Dprintk("Not responding.\n");
- } else {
- printk(KERN_WARNING "IPI not delivered.\n");
- }
-
- if (send_status == GxICR_REQUEST || callin_status == 0) {
- cpumask_clear_cpu(cpu_id, &cpu_callout_map);
- cpumask_clear_cpu(cpu_id, &cpu_callin_map);
- cpumask_clear_cpu(cpu_id, &cpu_initialized);
- cpucount--;
- return 1;
- }
- return 0;
-}
-
-/**
- * smp_show_cpu_info - Show SMP CPU information
- * @cpu: The CPU of interest.
- */
-static void __init smp_show_cpu_info(int cpu)
-{
- struct mn10300_cpuinfo *ci = &cpu_data[cpu];
-
- printk(KERN_INFO
- "CPU#%d : ioclk speed: %lu.%02luMHz : bogomips : %lu.%02lu\n",
- cpu,
- MN10300_IOCLK / 1000000,
- (MN10300_IOCLK / 10000) % 100,
- ci->loops_per_jiffy / (500000 / HZ),
- (ci->loops_per_jiffy / (5000 / HZ)) % 100);
-}
-
-/**
- * smp_callin - Set cpu_callin_map of the current CPU ID
- */
-static void __init smp_callin(void)
-{
- unsigned long timeout;
- int cpu;
-
- cpu = smp_processor_id();
- timeout = jiffies + (2 * HZ);
-
- if (cpumask_test_cpu(cpu, &cpu_callin_map)) {
- printk(KERN_ERR "CPU#%d already present.\n", cpu);
- BUG();
- }
- Dprintk("CPU#%d waiting for CALLOUT\n", cpu);
-
- /* Wait for AP startup 2s total */
- while (time_before(jiffies, timeout)) {
- if (cpumask_test_cpu(cpu, &cpu_callout_map))
- break;
- cpu_relax();
- }
-
- if (!time_before(jiffies, timeout)) {
- printk(KERN_ERR
- "BUG: CPU#%d started up but did not get a callout!\n",
- cpu);
- BUG();
- }
-
-#ifdef CONFIG_CALIBRATE_DELAY
- calibrate_delay(); /* Get our bogomips */
-#endif
-
- /* Save our processor parameters */
- smp_store_cpu_info(cpu);
-
- /* Allow the boot processor to continue */
- cpumask_set_cpu(cpu, &cpu_callin_map);
-}
-
-/**
- * smp_online - Set cpu_online_mask
- */
-static void __init smp_online(void)
-{
- int cpu;
-
- cpu = smp_processor_id();
-
- notify_cpu_starting(cpu);
-
- set_cpu_online(cpu, true);
-
- local_irq_enable();
-}
-
-/**
- * smp_cpus_done -
- * @max_cpus: Maximum CPU count.
- *
- * Do nothing.
- */
-void __init smp_cpus_done(unsigned int max_cpus)
-{
-}
-
-/*
- * smp_prepare_boot_cpu - Set up stuff for the boot processor.
- *
- * Set up the cpu_online_mask, cpu_callout_map and cpu_callin_map of the boot
- * processor (CPU 0).
- */
-void smp_prepare_boot_cpu(void)
-{
- cpumask_set_cpu(0, &cpu_callout_map);
- cpumask_set_cpu(0, &cpu_callin_map);
- current_thread_info()->cpu = 0;
-}
-
-/*
- * initialize_secondary - Initialise a secondary CPU (Application Processor).
- *
- * Set SP register and jump to thread's PC address.
- */
-void initialize_secondary(void)
-{
- asm volatile (
- "mov %0,sp \n"
- "jmp (%1) \n"
- :
- : "a"(current->thread.sp), "a"(current->thread.pc));
-}
-
-/**
- * __cpu_up - Set smp_commenced_mask for the nominated CPU
- * @cpu: The target CPU.
- */
-int __cpu_up(unsigned int cpu, struct task_struct *tidle)
-{
- int timeout;
-
-#ifdef CONFIG_HOTPLUG_CPU
- if (sleep_mode[cpu])
- run_wakeup_cpu(cpu);
-#endif /* CONFIG_HOTPLUG_CPU */
-
- cpumask_set_cpu(cpu, &smp_commenced_mask);
-
- /* Wait 5s total for a response */
- for (timeout = 0 ; timeout < 5000 ; timeout++) {
- if (cpu_online(cpu))
- break;
- udelay(1000);
- }
-
- BUG_ON(!cpu_online(cpu));
- return 0;
-}
-
-/**
- * setup_profiling_timer - Set up the profiling timer
- * @multiplier - The frequency multiplier to use
- *
- * The frequency of the profiling timer can be changed by writing a multiplier
- * value into /proc/profile.
- */
-int setup_profiling_timer(unsigned int multiplier)
-{
- return -EINVAL;
-}
-
-/*
- * CPU hotplug routines
- */
-#ifdef CONFIG_HOTPLUG_CPU
-
-static DEFINE_PER_CPU(struct cpu, cpu_devices);
-
-static int __init topology_init(void)
-{
- int cpu, ret;
-
- for_each_cpu(cpu) {
- ret = register_cpu(&per_cpu(cpu_devices, cpu), cpu, NULL);
- if (ret)
- printk(KERN_WARNING
- "topology_init: register_cpu %d failed (%d)\n",
- cpu, ret);
- }
- return 0;
-}
-
-subsys_initcall(topology_init);
-
-int __cpu_disable(void)
-{
- int cpu = smp_processor_id();
- if (cpu == 0)
- return -EBUSY;
-
- migrate_irqs();
- cpumask_clear_cpu(cpu, &mm_cpumask(current->active_mm));
- return 0;
-}
-
-void __cpu_die(unsigned int cpu)
-{
- run_sleep_cpu(cpu);
-}
-
-#ifdef CONFIG_MN10300_CACHE_ENABLED
-static inline void hotplug_cpu_disable_cache(void)
-{
- int tmp;
- asm volatile(
- " movhu (%1),%0 \n"
- " and %2,%0 \n"
- " movhu %0,(%1) \n"
- "1: movhu (%1),%0 \n"
- " btst %3,%0 \n"
- " bne 1b \n"
- : "=&r"(tmp)
- : "a"(&CHCTR),
- "i"(~(CHCTR_ICEN | CHCTR_DCEN)),
- "i"(CHCTR_ICBUSY | CHCTR_DCBUSY)
- : "memory", "cc");
-}
-
-static inline void hotplug_cpu_enable_cache(void)
-{
- int tmp;
- asm volatile(
- "movhu (%1),%0 \n"
- "or %2,%0 \n"
- "movhu %0,(%1) \n"
- : "=&r"(tmp)
- : "a"(&CHCTR),
- "i"(CHCTR_ICEN | CHCTR_DCEN)
- : "memory", "cc");
-}
-
-static inline void hotplug_cpu_invalidate_cache(void)
-{
- int tmp;
- asm volatile (
- "movhu (%1),%0 \n"
- "or %2,%0 \n"
- "movhu %0,(%1) \n"
- : "=&r"(tmp)
- : "a"(&CHCTR),
- "i"(CHCTR_ICINV | CHCTR_DCINV)
- : "cc");
-}
-
-#else /* CONFIG_MN10300_CACHE_ENABLED */
-#define hotplug_cpu_disable_cache() do {} while (0)
-#define hotplug_cpu_enable_cache() do {} while (0)
-#define hotplug_cpu_invalidate_cache() do {} while (0)
-#endif /* CONFIG_MN10300_CACHE_ENABLED */
-
-/**
- * hotplug_cpu_nmi_call_function - Call a function on other CPUs for hotplug
- * @cpumask: List of target CPUs.
- * @func: The function to call on those CPUs.
- * @info: The context data for the function to be called.
- * @wait: Whether to wait for the calls to complete.
- *
- * Non-maskably call a function on another CPU for hotplug purposes.
- *
- * This function must be called with maskable interrupts disabled.
- */
-static int hotplug_cpu_nmi_call_function(cpumask_t cpumask,
- smp_call_func_t func, void *info,
- int wait)
-{
- /*
- * The address and the size of nmi_call_func_mask_data
- * need to be aligned on L1_CACHE_BYTES.
- */
- static struct nmi_call_data_struct nmi_call_func_mask_data
- __cacheline_aligned;
- unsigned long start, end;
-
- start = (unsigned long)&nmi_call_func_mask_data;
- end = start + sizeof(struct nmi_call_data_struct);
-
- nmi_call_func_mask_data.func = func;
- nmi_call_func_mask_data.info = info;
- nmi_call_func_mask_data.started = cpumask;
- nmi_call_func_mask_data.wait = wait;
- if (wait)
- nmi_call_func_mask_data.finished = cpumask;
-
- spin_lock(&smp_nmi_call_lock);
- nmi_call_data = &nmi_call_func_mask_data;
- mn10300_local_dcache_flush_range(start, end);
- smp_wmb();
-
- send_IPI_mask(cpumask, CALL_FUNCTION_NMI_IPI);
-
- do {
- mn10300_local_dcache_inv_range(start, end);
- barrier();
- } while (!cpumask_empty(&nmi_call_func_mask_data.started));
-
- if (wait) {
- do {
- mn10300_local_dcache_inv_range(start, end);
- barrier();
- } while (!cpumask_empty(&nmi_call_func_mask_data.finished));
- }
-
- spin_unlock(&smp_nmi_call_lock);
- return 0;
-}
-
-static void restart_wakeup_cpu(void)
-{
- unsigned int cpu = smp_processor_id();
-
- cpumask_set_cpu(cpu, &cpu_callin_map);
- local_flush_tlb();
- set_cpu_online(cpu, true);
- smp_wmb();
-}
-
-static void prepare_sleep_cpu(void *unused)
-{
- sleep_mode[smp_processor_id()] = 1;
- smp_mb();
- mn10300_local_dcache_flush_inv();
- hotplug_cpu_disable_cache();
- hotplug_cpu_invalidate_cache();
-}
-
-/* when this function called, IE=0, NMID=0. */
-static void sleep_cpu(void *unused)
-{
- unsigned int cpu_id = smp_processor_id();
- /*
- * CALL_FUNCTION_NMI_IPI for wakeup_cpu() shall not be requested,
- * before this cpu goes in SLEEP mode.
- */
- do {
- smp_mb();
- __sleep_cpu();
- } while (sleep_mode[cpu_id]);
- restart_wakeup_cpu();
-}
-
-static void run_sleep_cpu(unsigned int cpu)
-{
- unsigned long flags;
- cpumask_t cpumask;
-
- cpumask_copy(&cpumask, &cpumask_of(cpu));
- flags = arch_local_cli_save();
- hotplug_cpu_nmi_call_function(cpumask, prepare_sleep_cpu, NULL, 1);
- hotplug_cpu_nmi_call_function(cpumask, sleep_cpu, NULL, 0);
- udelay(1); /* delay for the cpu to sleep. */
- arch_local_irq_restore(flags);
-}
-
-static void wakeup_cpu(void)
-{
- hotplug_cpu_invalidate_cache();
- hotplug_cpu_enable_cache();
- smp_mb();
- sleep_mode[smp_processor_id()] = 0;
-}
-
-static void run_wakeup_cpu(unsigned int cpu)
-{
- unsigned long flags;
-
- flags = arch_local_cli_save();
-#if NR_CPUS == 2
- mn10300_local_dcache_flush_inv();
-#else
- /*
- * Before waking up the cpu,
- * all online cpus should stop and flush D-Cache for global data.
- */
-#error not support NR_CPUS > 2, when CONFIG_HOTPLUG_CPU=y.
-#endif
- hotplug_cpu_nmi_call_function(cpumask_of(cpu), wakeup_cpu, NULL, 1);
- arch_local_irq_restore(flags);
-}
-
-#endif /* CONFIG_HOTPLUG_CPU */
+++ /dev/null
-###############################################################################
-#
-# MN10300 Context switch operation
-#
-# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
-# Written by David Howells (dhowells@redhat.com)
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public Licence
-# as published by the Free Software Foundation; either version
-# 2 of the Licence, or (at your option) any later version.
-#
-###############################################################################
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/thread_info.h>
-#include <asm/cpu-regs.h>
-#ifdef CONFIG_SMP
-#include <proc/smp-regs.h>
-#endif /* CONFIG_SMP */
-
- .text
-
-###############################################################################
-#
-# struct task_struct *__switch_to(struct thread_struct *prev,
-# struct thread_struct *next,
-# struct task_struct *prev_task)
-#
-###############################################################################
-ENTRY(__switch_to)
- movm [d2,d3,a2,a3,exreg1],(sp)
- or EPSW_NMID,epsw
-
- mov (44,sp),d2
-
- mov d0,a0
- mov d1,a1
-
- # save prev context
- mov __switch_back,d0
- mov sp,a2
- mov a2,(THREAD_SP,a0)
- mov a3,(THREAD_A3,a0)
-
-#ifdef CONFIG_KGDB
- btst 0xff,(kgdb_single_step)
- bne __switch_to__lift_sstep_bp
-__switch_to__continue:
-#endif
- mov d0,(THREAD_PC,a0)
-
- mov (THREAD_A3,a1),a3
- mov (THREAD_SP,a1),a2
-
- # switch
- mov a2,sp
-
- # load next context
- GET_THREAD_INFO a2
- mov a2,(__current_ti)
- mov (TI_task,a2),a2
- mov a2,(__current)
-#ifdef CONFIG_MN10300_CURRENT_IN_E2
- mov a2,e2
-#endif
-
- mov (THREAD_PC,a1),a2
- mov d2,d0 # for ret_from_fork
- mov d0,a0 # for __switch_to
-
- jmp (a2)
-
-__switch_back:
- and ~EPSW_NMID,epsw
- ret [d2,d3,a2,a3,exreg1],32
-
-#ifdef CONFIG_KGDB
-###############################################################################
-#
-# Lift the single-step breakpoints when the task being traced is switched out
-# A0 = prev
-# A1 = next
-#
-###############################################################################
-__switch_to__lift_sstep_bp:
- add -12,sp
- mov a0,e4
- mov a1,e5
-
- # Clear the single-step flag to prevent us coming this way until we get
- # switched back in
- bclr 0xff,(kgdb_single_step)
-
- # Remove first breakpoint
- mov (kgdb_sstep_bp_addr),a2
- cmp 0,a2
- beq 1f
- movbu (kgdb_sstep_bp),d0
- movbu d0,(a2)
-#if defined(CONFIG_MN10300_CACHE_FLUSH_ICACHE) || defined(CONFIG_MN10300_CACHE_INV_ICACHE)
- mov a2,d0
- mov a2,d1
- add 1,d1
- calls flush_icache_range
-#endif
-1:
-
- # Remove second breakpoint
- mov (kgdb_sstep_bp_addr+4),a2
- cmp 0,a2
- beq 2f
- movbu (kgdb_sstep_bp+1),d0
- movbu d0,(a2)
-#if defined(CONFIG_MN10300_CACHE_FLUSH_ICACHE) || defined(CONFIG_MN10300_CACHE_INV_ICACHE)
- mov a2,d0
- mov a2,d1
- add 1,d1
- calls flush_icache_range
-#endif
-2:
-
- # Change the resumption address and return
- mov __switch_back__reinstall_sstep_bp,d0
- mov e4,a0
- mov e5,a1
- add 12,sp
- bra __switch_to__continue
-
-###############################################################################
-#
-# Reinstall the single-step breakpoints when the task being traced is switched
-# back in (A1 points to the new thread_struct).
-#
-###############################################################################
-__switch_back__reinstall_sstep_bp:
- add -12,sp
- mov a0,e4 # save the return value
- mov 0xff,d3
-
- # Reinstall first breakpoint
- mov (kgdb_sstep_bp_addr),a2
- cmp 0,a2
- beq 1f
- movbu (a2),d0
- movbu d0,(kgdb_sstep_bp)
- movbu d3,(a2)
-#if defined(CONFIG_MN10300_CACHE_FLUSH_ICACHE) || defined(CONFIG_MN10300_CACHE_INV_ICACHE)
- mov a2,d0
- mov a2,d1
- add 1,d1
- calls flush_icache_range
-#endif
-1:
-
- # Reinstall second breakpoint
- mov (kgdb_sstep_bp_addr+4),a2
- cmp 0,a2
- beq 2f
- movbu (a2),d0
- movbu d0,(kgdb_sstep_bp+1)
- movbu d3,(a2)
-#if defined(CONFIG_MN10300_CACHE_FLUSH_ICACHE) || defined(CONFIG_MN10300_CACHE_INV_ICACHE)
- mov a2,d0
- mov a2,d1
- add 1,d1
- calls flush_icache_range
-#endif
-2:
-
- mov d3,(kgdb_single_step)
-
- # Restore the return value (the previous thread_struct pointer)
- mov e4,a0
- mov a0,d0
- add 12,sp
- bra __switch_back
-
-#endif /* CONFIG_KGDB */
+++ /dev/null
-/* MN10300 Weird system calls
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/syscalls.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/stat.h>
-#include <linux/mman.h>
-#include <linux/file.h>
-#include <linux/tty.h>
-
-#include <linux/uaccess.h>
-
-asmlinkage long old_mmap(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long offset)
-{
- if (offset & ~PAGE_MASK)
- return -EINVAL;
- return sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
-}
+++ /dev/null
-/* MN10300 Low level time management
- *
- * Copyright (C) 2007-2008 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- * - Derived from arch/i386/kernel/time.c
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/sched.h>
-#include <linux/sched/clock.h>
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/time.h>
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/profile.h>
-#include <linux/cnt32_to_63.h>
-#include <linux/clocksource.h>
-#include <linux/clockchips.h>
-#include <asm/irq.h>
-#include <asm/div64.h>
-#include <asm/processor.h>
-#include <asm/intctl-regs.h>
-#include <asm/rtc.h>
-#include "internal.h"
-
-static unsigned long mn10300_last_tsc; /* time-stamp counter at last time
- * interrupt occurred */
-
-static unsigned long sched_clock_multiplier;
-
-/*
- * scheduler clock - returns current time in nanosec units.
- */
-unsigned long long sched_clock(void)
-{
- union {
- unsigned long long ll;
- unsigned l[2];
- } tsc64, result;
- unsigned long tmp;
- unsigned product[3]; /* 96-bit intermediate value */
-
- /* cnt32_to_63() is not safe with preemption */
- preempt_disable();
-
- /* expand the tsc to 64-bits.
- * - sched_clock() must be called once a minute or better or the
- * following will go horribly wrong - see cnt32_to_63()
- */
- tsc64.ll = cnt32_to_63(get_cycles()) & 0x7fffffffffffffffULL;
-
- preempt_enable();
-
- /* scale the 64-bit TSC value to a nanosecond value via a 96-bit
- * intermediate
- */
- asm("mulu %2,%0,%3,%0 \n" /* LSW * mult -> 0:%3:%0 */
- "mulu %2,%1,%2,%1 \n" /* MSW * mult -> %2:%1:0 */
- "add %3,%1 \n"
- "addc 0,%2 \n" /* result in %2:%1:%0 */
- : "=r"(product[0]), "=r"(product[1]), "=r"(product[2]), "=r"(tmp)
- : "0"(tsc64.l[0]), "1"(tsc64.l[1]), "2"(sched_clock_multiplier)
- : "cc");
-
- result.l[0] = product[1] << 16 | product[0] >> 16;
- result.l[1] = product[2] << 16 | product[1] >> 16;
-
- return result.ll;
-}
-
-/*
- * initialise the scheduler clock
- */
-static void __init mn10300_sched_clock_init(void)
-{
- sched_clock_multiplier =
- __muldiv64u(NSEC_PER_SEC, 1 << 16, MN10300_TSCCLK);
-}
-
-/**
- * local_timer_interrupt - Local timer interrupt handler
- *
- * Handle local timer interrupts for this CPU. They may have been propagated
- * to this CPU from the CPU that actually gets them by way of an IPI.
- */
-irqreturn_t local_timer_interrupt(void)
-{
- profile_tick(CPU_PROFILING);
- update_process_times(user_mode(get_irq_regs()));
- return IRQ_HANDLED;
-}
-
-/*
- * initialise the various timers used by the main part of the kernel
- */
-void __init time_init(void)
-{
- /* we need the prescalar running to be able to use IOCLK/8
- * - IOCLK runs at 1/4 (ST5 open) or 1/8 (ST5 closed) internal CPU clock
- * - IOCLK runs at Fosc rate (crystal speed)
- */
- TMPSCNT |= TMPSCNT_ENABLE;
-
- init_clocksource();
-
- printk(KERN_INFO
- "timestamp counter I/O clock running at %lu.%02lu"
- " (calibrated against RTC)\n",
- MN10300_TSCCLK / 1000000, (MN10300_TSCCLK / 10000) % 100);
-
- mn10300_last_tsc = read_timestamp_counter();
-
- init_clockevents();
-
-#ifdef CONFIG_MN10300_WD_TIMER
- /* start the watchdog timer */
- watchdog_go();
-#endif
-
- mn10300_sched_clock_init();
-}
+++ /dev/null
-/* MN10300 Exception handling
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Modified by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/sched.h>
-#include <linux/sched/debug.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/kdebug.h>
-#include <linux/bug.h>
-#include <linux/irq.h>
-#include <linux/export.h>
-#include <asm/processor.h>
-#include <linux/uaccess.h>
-#include <asm/io.h>
-#include <linux/atomic.h>
-#include <asm/smp.h>
-#include <asm/pgalloc.h>
-#include <asm/cacheflush.h>
-#include <asm/cpu-regs.h>
-#include <asm/busctl-regs.h>
-#include <unit/leds.h>
-#include <asm/fpu.h>
-#include <asm/sections.h>
-#include <asm/debugger.h>
-#include "internal.h"
-
-#if (CONFIG_INTERRUPT_VECTOR_BASE & 0xffffff)
-#error "INTERRUPT_VECTOR_BASE not aligned to 16MiB boundary!"
-#endif
-
-int kstack_depth_to_print = 24;
-
-spinlock_t die_lock = __SPIN_LOCK_UNLOCKED(die_lock);
-
-struct exception_to_signal_map {
- u8 signo;
- u32 si_code;
-};
-
-static const struct exception_to_signal_map exception_to_signal_map[256] = {
- /* MMU exceptions */
- [EXCEP_ITLBMISS >> 3] = { 0, 0 },
- [EXCEP_DTLBMISS >> 3] = { 0, 0 },
- [EXCEP_IAERROR >> 3] = { 0, 0 },
- [EXCEP_DAERROR >> 3] = { 0, 0 },
-
- /* system exceptions */
- [EXCEP_TRAP >> 3] = { SIGTRAP, TRAP_BRKPT },
- [EXCEP_ISTEP >> 3] = { SIGTRAP, TRAP_TRACE }, /* Monitor */
- [EXCEP_IBREAK >> 3] = { SIGTRAP, TRAP_HWBKPT }, /* Monitor */
- [EXCEP_OBREAK >> 3] = { SIGTRAP, TRAP_HWBKPT }, /* Monitor */
- [EXCEP_PRIVINS >> 3] = { SIGILL, ILL_PRVOPC },
- [EXCEP_UNIMPINS >> 3] = { SIGILL, ILL_ILLOPC },
- [EXCEP_UNIMPEXINS >> 3] = { SIGILL, ILL_ILLOPC },
- [EXCEP_MEMERR >> 3] = { SIGSEGV, SEGV_ACCERR },
- [EXCEP_MISALIGN >> 3] = { SIGBUS, BUS_ADRALN },
- [EXCEP_BUSERROR >> 3] = { SIGBUS, BUS_ADRERR },
- [EXCEP_ILLINSACC >> 3] = { SIGSEGV, SEGV_ACCERR },
- [EXCEP_ILLDATACC >> 3] = { SIGSEGV, SEGV_ACCERR },
- [EXCEP_IOINSACC >> 3] = { SIGSEGV, SEGV_ACCERR },
- [EXCEP_PRIVINSACC >> 3] = { SIGSEGV, SEGV_ACCERR }, /* userspace */
- [EXCEP_PRIVDATACC >> 3] = { SIGSEGV, SEGV_ACCERR }, /* userspace */
- [EXCEP_DATINSACC >> 3] = { SIGSEGV, SEGV_ACCERR },
- [EXCEP_DOUBLE_FAULT >> 3] = { SIGILL, ILL_BADSTK },
-
- /* FPU exceptions */
- [EXCEP_FPU_DISABLED >> 3] = { SIGILL, ILL_COPROC },
- [EXCEP_FPU_UNIMPINS >> 3] = { SIGILL, ILL_COPROC },
- [EXCEP_FPU_OPERATION >> 3] = { SIGFPE, FPE_INTDIV },
-
- /* interrupts */
- [EXCEP_WDT >> 3] = { SIGALRM, 0 },
- [EXCEP_NMI >> 3] = { SIGQUIT, 0 },
- [EXCEP_IRQ_LEVEL0 >> 3] = { SIGINT, 0 },
- [EXCEP_IRQ_LEVEL1 >> 3] = { 0, 0 },
- [EXCEP_IRQ_LEVEL2 >> 3] = { 0, 0 },
- [EXCEP_IRQ_LEVEL3 >> 3] = { 0, 0 },
- [EXCEP_IRQ_LEVEL4 >> 3] = { 0, 0 },
- [EXCEP_IRQ_LEVEL5 >> 3] = { 0, 0 },
- [EXCEP_IRQ_LEVEL6 >> 3] = { 0, 0 },
-
- /* system calls */
- [EXCEP_SYSCALL0 >> 3] = { 0, 0 },
- [EXCEP_SYSCALL1 >> 3] = { SIGILL, ILL_ILLTRP },
- [EXCEP_SYSCALL2 >> 3] = { SIGILL, ILL_ILLTRP },
- [EXCEP_SYSCALL3 >> 3] = { SIGILL, ILL_ILLTRP },
- [EXCEP_SYSCALL4 >> 3] = { SIGILL, ILL_ILLTRP },
- [EXCEP_SYSCALL5 >> 3] = { SIGILL, ILL_ILLTRP },
- [EXCEP_SYSCALL6 >> 3] = { SIGILL, ILL_ILLTRP },
- [EXCEP_SYSCALL7 >> 3] = { SIGILL, ILL_ILLTRP },
- [EXCEP_SYSCALL8 >> 3] = { SIGILL, ILL_ILLTRP },
- [EXCEP_SYSCALL9 >> 3] = { SIGILL, ILL_ILLTRP },
- [EXCEP_SYSCALL10 >> 3] = { SIGILL, ILL_ILLTRP },
- [EXCEP_SYSCALL11 >> 3] = { SIGILL, ILL_ILLTRP },
- [EXCEP_SYSCALL12 >> 3] = { SIGILL, ILL_ILLTRP },
- [EXCEP_SYSCALL13 >> 3] = { SIGILL, ILL_ILLTRP },
- [EXCEP_SYSCALL14 >> 3] = { SIGILL, ILL_ILLTRP },
- [EXCEP_SYSCALL15 >> 3] = { SIGABRT, 0 },
-};
-
-/*
- * Handle kernel exceptions.
- *
- * See if there's a fixup handler we can force a jump to when an exception
- * happens due to something kernel code did
- */
-int die_if_no_fixup(const char *str, struct pt_regs *regs,
- enum exception_code code)
-{
- u8 opcode;
- int signo, si_code;
-
- if (user_mode(regs))
- return 0;
-
- peripheral_leds_display_exception(code);
-
- signo = exception_to_signal_map[code >> 3].signo;
- si_code = exception_to_signal_map[code >> 3].si_code;
-
- switch (code) {
- /* see if we can fixup the kernel accessing memory */
- case EXCEP_ITLBMISS:
- case EXCEP_DTLBMISS:
- case EXCEP_IAERROR:
- case EXCEP_DAERROR:
- case EXCEP_MEMERR:
- case EXCEP_MISALIGN:
- case EXCEP_BUSERROR:
- case EXCEP_ILLDATACC:
- case EXCEP_IOINSACC:
- case EXCEP_PRIVINSACC:
- case EXCEP_PRIVDATACC:
- case EXCEP_DATINSACC:
- if (fixup_exception(regs))
- return 1;
- break;
-
- case EXCEP_TRAP:
- case EXCEP_UNIMPINS:
- if (probe_kernel_read(&opcode, (u8 *)regs->pc, 1) < 0)
- break;
- if (opcode == 0xff) {
- if (notify_die(DIE_BREAKPOINT, str, regs, code, 0, 0))
- return 1;
- if (at_debugger_breakpoint(regs))
- regs->pc++;
- signo = SIGTRAP;
- si_code = TRAP_BRKPT;
- }
- break;
-
- case EXCEP_SYSCALL1 ... EXCEP_SYSCALL14:
- /* syscall return addr is _after_ the instruction */
- regs->pc -= 2;
- break;
-
- case EXCEP_SYSCALL15:
- if (report_bug(regs->pc, regs) == BUG_TRAP_TYPE_WARN)
- return 1;
-
- /* syscall return addr is _after_ the instruction */
- regs->pc -= 2;
- break;
-
- default:
- break;
- }
-
- if (debugger_intercept(code, signo, si_code, regs) == 0)
- return 1;
-
- if (notify_die(DIE_GPF, str, regs, code, 0, 0))
- return 1;
-
- /* make the process die as the last resort */
- die(str, regs, code);
-}
-
-/*
- * General exception handler
- */
-asmlinkage void handle_exception(struct pt_regs *regs, u32 intcode)
-{
- siginfo_t info;
-
- /* deal with kernel exceptions here */
- if (die_if_no_fixup(NULL, regs, intcode))
- return;
-
- /* otherwise it's a userspace exception */
- info.si_signo = exception_to_signal_map[intcode >> 3].signo;
- info.si_code = exception_to_signal_map[intcode >> 3].si_code;
- info.si_errno = 0;
- info.si_addr = (void *) regs->pc;
- force_sig_info(info.si_signo, &info, current);
-}
-
-/*
- * handle NMI
- */
-asmlinkage void nmi(struct pt_regs *regs, enum exception_code code)
-{
- /* see if gdbstub wants to deal with it */
- if (debugger_intercept(code, SIGQUIT, 0, regs))
- return;
-
- printk(KERN_WARNING "--- Register Dump ---\n");
- show_registers(regs);
- printk(KERN_WARNING "---------------------\n");
-}
-
-/*
- * show a stack trace from the specified stack pointer
- */
-void show_trace(unsigned long *sp)
-{
- unsigned long bottom, stack, addr, fp, raslot;
-
- printk(KERN_EMERG "\nCall Trace:\n");
-
- //stack = (unsigned long)sp;
- asm("mov sp,%0" : "=a"(stack));
- asm("mov a3,%0" : "=r"(fp));
-
- raslot = ULONG_MAX;
- bottom = (stack + THREAD_SIZE) & ~(THREAD_SIZE - 1);
- for (; stack < bottom; stack += sizeof(addr)) {
- addr = *(unsigned long *)stack;
- if (stack == fp) {
- if (addr > stack && addr < bottom) {
- fp = addr;
- raslot = stack + sizeof(addr);
- continue;
- }
- fp = 0;
- raslot = ULONG_MAX;
- }
-
- if (__kernel_text_address(addr)) {
- printk(" [<%08lx>]", addr);
- if (stack >= raslot)
- raslot = ULONG_MAX;
- else
- printk(" ?");
- printk(" %pS\n", (void *)addr);
- }
- }
-
- printk("\n");
-}
-
-/*
- * show the raw stack from the specified stack pointer
- */
-void show_stack(struct task_struct *task, unsigned long *sp)
-{
- unsigned long *stack;
- int i;
-
- if (!sp)
- sp = (unsigned long *) &sp;
-
- stack = sp;
- printk(KERN_EMERG "Stack:");
- for (i = 0; i < kstack_depth_to_print; i++) {
- if (((long) stack & (THREAD_SIZE - 1)) == 0)
- break;
- if ((i % 8) == 0)
- printk(KERN_EMERG " ");
- printk("%08lx ", *stack++);
- }
-
- show_trace(sp);
-}
-
-/*
- * dump the register file in the specified exception frame
- */
-void show_registers_only(struct pt_regs *regs)
-{
- unsigned long ssp;
-
- ssp = (unsigned long) regs + sizeof(*regs);
-
- printk(KERN_EMERG "PC: %08lx EPSW: %08lx SSP: %08lx mode: %s\n",
- regs->pc, regs->epsw, ssp, user_mode(regs) ? "User" : "Super");
- printk(KERN_EMERG "d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n",
- regs->d0, regs->d1, regs->d2, regs->d3);
- printk(KERN_EMERG "a0: %08lx a1: %08lx a2: %08lx a3: %08lx\n",
- regs->a0, regs->a1, regs->a2, regs->a3);
- printk(KERN_EMERG "e0: %08lx e1: %08lx e2: %08lx e3: %08lx\n",
- regs->e0, regs->e1, regs->e2, regs->e3);
- printk(KERN_EMERG "e4: %08lx e5: %08lx e6: %08lx e7: %08lx\n",
- regs->e4, regs->e5, regs->e6, regs->e7);
- printk(KERN_EMERG "lar: %08lx lir: %08lx mdr: %08lx usp: %08lx\n",
- regs->lar, regs->lir, regs->mdr, regs->sp);
- printk(KERN_EMERG "cvf: %08lx crl: %08lx crh: %08lx drq: %08lx\n",
- regs->mcvf, regs->mcrl, regs->mcrh, regs->mdrq);
- printk(KERN_EMERG "threadinfo=%p task=%p)\n",
- current_thread_info(), current);
-
- if ((unsigned long) current >= PAGE_OFFSET &&
- (unsigned long) current < (unsigned long)high_memory)
- printk(KERN_EMERG "Process %s (pid: %d)\n",
- current->comm, current->pid);
-
-#ifdef CONFIG_SMP
- printk(KERN_EMERG "CPUID: %08x\n", CPUID);
-#endif
- printk(KERN_EMERG "CPUP: %04hx\n", CPUP);
- printk(KERN_EMERG "TBR: %08x\n", TBR);
- printk(KERN_EMERG "DEAR: %08x\n", DEAR);
- printk(KERN_EMERG "sISR: %08x\n", sISR);
- printk(KERN_EMERG "NMICR: %04hx\n", NMICR);
- printk(KERN_EMERG "BCBERR: %08x\n", BCBERR);
- printk(KERN_EMERG "BCBEAR: %08x\n", BCBEAR);
- printk(KERN_EMERG "MMUFCR: %08x\n", MMUFCR);
- printk(KERN_EMERG "IPTEU : %08x IPTEL2: %08x\n", IPTEU, IPTEL2);
- printk(KERN_EMERG "DPTEU: %08x DPTEL2: %08x\n", DPTEU, DPTEL2);
-}
-
-/*
- * dump the registers and the stack
- */
-void show_registers(struct pt_regs *regs)
-{
- unsigned long sp;
- int i;
-
- show_registers_only(regs);
-
- if (!user_mode(regs))
- sp = (unsigned long) regs + sizeof(*regs);
- else
- sp = regs->sp;
-
- /* when in-kernel, we also print out the stack and code at the
- * time of the fault..
- */
- if (!user_mode(regs)) {
- printk(KERN_EMERG "\n");
- show_stack(current, (unsigned long *) sp);
-
-#if 0
- printk(KERN_EMERG "\nCode: ");
- if (regs->pc < PAGE_OFFSET)
- goto bad;
-
- for (i = 0; i < 20; i++) {
- unsigned char c;
- if (__get_user(c, &((unsigned char *) regs->pc)[i]))
- goto bad;
- printk("%02x ", c);
- }
-#else
- i = 0;
-#endif
- }
-
- printk("\n");
- return;
-
-#if 0
-bad:
- printk(KERN_EMERG " Bad PC value.");
- break;
-#endif
-}
-
-/*
- *
- */
-void show_trace_task(struct task_struct *tsk)
-{
- unsigned long sp = tsk->thread.sp;
-
- /* User space on another CPU? */
- if ((sp ^ (unsigned long) tsk) & (PAGE_MASK << 1))
- return;
-
- show_trace((unsigned long *) sp);
-}
-
-/*
- * note the untimely death of part of the kernel
- */
-void die(const char *str, struct pt_regs *regs, enum exception_code code)
-{
- console_verbose();
- spin_lock_irq(&die_lock);
- printk(KERN_EMERG "\n%s: %04x\n",
- str, code & 0xffff);
- show_registers(regs);
-
- if (regs->pc >= 0x02000000 && regs->pc < 0x04000000 &&
- (regs->epsw & (EPSW_IM | EPSW_IE)) != (EPSW_IM | EPSW_IE)) {
- printk(KERN_EMERG "Exception in usermode interrupt handler\n");
- printk(KERN_EMERG "\nPlease connect to kernel debugger !!\n");
- asm volatile ("0: bra 0b");
- }
-
- spin_unlock_irq(&die_lock);
- do_exit(SIGSEGV);
-}
-
-/*
- * display the register file when the stack pointer gets clobbered
- */
-asmlinkage void do_double_fault(struct pt_regs *regs)
-{
- struct task_struct *tsk = current;
-
- strcpy(tsk->comm, "emergency tsk");
- tsk->pid = 0;
- console_verbose();
- printk(KERN_EMERG "--- double fault ---\n");
- show_registers(regs);
-}
-
-/*
- * asynchronous bus error (external, usually I/O DMA)
- */
-asmlinkage void io_bus_error(u32 bcberr, u32 bcbear, struct pt_regs *regs)
-{
- console_verbose();
-
- printk(KERN_EMERG "Asynchronous I/O Bus Error\n");
- printk(KERN_EMERG "==========================\n");
-
- if (bcberr & BCBERR_BEME)
- printk(KERN_EMERG "- Multiple recorded errors\n");
-
- printk(KERN_EMERG "- Faulting Buses:%s%s%s\n",
- bcberr & BCBERR_BEMR_CI ? " CPU-Ins-Fetch" : "",
- bcberr & BCBERR_BEMR_CD ? " CPU-Data" : "",
- bcberr & BCBERR_BEMR_DMA ? " DMA" : "");
-
- printk(KERN_EMERG "- %s %s access made to %s at address %08x\n",
- bcberr & BCBERR_BEBST ? "Burst" : "Single",
- bcberr & BCBERR_BERW ? "Read" : "Write",
- bcberr & BCBERR_BESB_MON ? "Monitor Space" :
- bcberr & BCBERR_BESB_IO ? "Internal CPU I/O Space" :
- bcberr & BCBERR_BESB_EX ? "External I/O Bus" :
- bcberr & BCBERR_BESB_OPEX ? "External Memory Bus" :
- "On Chip Memory",
- bcbear
- );
-
- printk(KERN_EMERG "- Detected by the %s\n",
- bcberr&BCBERR_BESD ? "Bus Control Unit" : "Slave Bus");
-
-#ifdef CONFIG_PCI
-#define BRIDGEREGB(X) (*(volatile __u8 *)(0xBE040000 + (X)))
-#define BRIDGEREGW(X) (*(volatile __u16 *)(0xBE040000 + (X)))
-#define BRIDGEREGL(X) (*(volatile __u32 *)(0xBE040000 + (X)))
-
- printk(KERN_EMERG "- PCI Memory Paging Reg: %08x\n",
- *(volatile __u32 *) (0xBFFFFFF4));
- printk(KERN_EMERG "- PCI Bridge Base Address 0: %08x\n",
- BRIDGEREGL(PCI_BASE_ADDRESS_0));
- printk(KERN_EMERG "- PCI Bridge AMPCI Base Address: %08x\n",
- BRIDGEREGL(0x48));
- printk(KERN_EMERG "- PCI Bridge Command: %04hx\n",
- BRIDGEREGW(PCI_COMMAND));
- printk(KERN_EMERG "- PCI Bridge Status: %04hx\n",
- BRIDGEREGW(PCI_STATUS));
- printk(KERN_EMERG "- PCI Bridge Int Status: %08hx\n",
- BRIDGEREGL(0x4c));
-#endif
-
- printk(KERN_EMERG "\n");
- show_registers(regs);
-
- panic("Halted due to asynchronous I/O Bus Error\n");
-}
-
-/*
- * handle an exception for which a handler has not yet been installed
- */
-asmlinkage void uninitialised_exception(struct pt_regs *regs,
- enum exception_code code)
-{
-
- /* see if gdbstub wants to deal with it */
- if (debugger_intercept(code, SIGSYS, 0, regs) == 0)
- return;
-
- peripheral_leds_display_exception(code);
- printk(KERN_EMERG "Uninitialised Exception 0x%04x\n", code & 0xFFFF);
- show_registers(regs);
-
- for (;;)
- continue;
-}
-
-/*
- * set an interrupt stub to jump to a handler
- * ! NOTE: this does *not* flush the caches
- */
-void __init __set_intr_stub(enum exception_code code, void *handler)
-{
- unsigned long addr;
- u8 *vector = (u8 *)(CONFIG_INTERRUPT_VECTOR_BASE + code);
-
- addr = (unsigned long) handler - (unsigned long) vector;
- vector[0] = 0xdc; /* JMP handler */
- vector[1] = addr;
- vector[2] = addr >> 8;
- vector[3] = addr >> 16;
- vector[4] = addr >> 24;
- vector[5] = 0xcb;
- vector[6] = 0xcb;
- vector[7] = 0xcb;
-}
-
-/*
- * set an interrupt stub to jump to a handler
- */
-void __init set_intr_stub(enum exception_code code, void *handler)
-{
- unsigned long addr;
- u8 *vector = (u8 *)(CONFIG_INTERRUPT_VECTOR_BASE + code);
- unsigned long flags;
-
- addr = (unsigned long) handler - (unsigned long) vector;
-
- flags = arch_local_cli_save();
-
- vector[0] = 0xdc; /* JMP handler */
- vector[1] = addr;
- vector[2] = addr >> 8;
- vector[3] = addr >> 16;
- vector[4] = addr >> 24;
- vector[5] = 0xcb;
- vector[6] = 0xcb;
- vector[7] = 0xcb;
-
- arch_local_irq_restore(flags);
-
-#ifndef CONFIG_MN10300_CACHE_SNOOP
- mn10300_dcache_flush_inv();
- mn10300_icache_inv();
-#endif
-}
-
-/*
- * initialise the exception table
- */
-void __init trap_init(void)
-{
- set_excp_vector(EXCEP_TRAP, handle_exception);
- set_excp_vector(EXCEP_ISTEP, handle_exception);
- set_excp_vector(EXCEP_IBREAK, handle_exception);
- set_excp_vector(EXCEP_OBREAK, handle_exception);
-
- set_excp_vector(EXCEP_PRIVINS, handle_exception);
- set_excp_vector(EXCEP_UNIMPINS, handle_exception);
- set_excp_vector(EXCEP_UNIMPEXINS, handle_exception);
- set_excp_vector(EXCEP_MEMERR, handle_exception);
- set_excp_vector(EXCEP_MISALIGN, misalignment);
- set_excp_vector(EXCEP_BUSERROR, handle_exception);
- set_excp_vector(EXCEP_ILLINSACC, handle_exception);
- set_excp_vector(EXCEP_ILLDATACC, handle_exception);
- set_excp_vector(EXCEP_IOINSACC, handle_exception);
- set_excp_vector(EXCEP_PRIVINSACC, handle_exception);
- set_excp_vector(EXCEP_PRIVDATACC, handle_exception);
- set_excp_vector(EXCEP_DATINSACC, handle_exception);
- set_excp_vector(EXCEP_FPU_UNIMPINS, handle_exception);
- set_excp_vector(EXCEP_FPU_OPERATION, fpu_exception);
-
- set_excp_vector(EXCEP_NMI, nmi);
-
- set_excp_vector(EXCEP_SYSCALL1, handle_exception);
- set_excp_vector(EXCEP_SYSCALL2, handle_exception);
- set_excp_vector(EXCEP_SYSCALL3, handle_exception);
- set_excp_vector(EXCEP_SYSCALL4, handle_exception);
- set_excp_vector(EXCEP_SYSCALL5, handle_exception);
- set_excp_vector(EXCEP_SYSCALL6, handle_exception);
- set_excp_vector(EXCEP_SYSCALL7, handle_exception);
- set_excp_vector(EXCEP_SYSCALL8, handle_exception);
- set_excp_vector(EXCEP_SYSCALL9, handle_exception);
- set_excp_vector(EXCEP_SYSCALL10, handle_exception);
- set_excp_vector(EXCEP_SYSCALL11, handle_exception);
- set_excp_vector(EXCEP_SYSCALL12, handle_exception);
- set_excp_vector(EXCEP_SYSCALL13, handle_exception);
- set_excp_vector(EXCEP_SYSCALL14, handle_exception);
- set_excp_vector(EXCEP_SYSCALL15, handle_exception);
-}
-
-/*
- * determine if a program counter value is a valid bug address
- */
-int is_valid_bugaddr(unsigned long pc)
-{
- return pc >= PAGE_OFFSET;
-}
+++ /dev/null
-/* MN10300 Main kernel linker script
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#define __VMLINUX_LDS__
-#include <asm-generic/vmlinux.lds.h>
-#include <asm/thread_info.h>
-#include <asm/page.h>
-
-OUTPUT_FORMAT("elf32-am33lin", "elf32-am33lin", "elf32-am33lin")
-OUTPUT_ARCH(mn10300)
-ENTRY(_start)
-jiffies = jiffies_64;
-#ifndef CONFIG_MN10300_CURRENT_IN_E2
-current = __current;
-#endif
-SECTIONS
-{
- . = CONFIG_KERNEL_TEXT_ADDRESS;
- /* read-only */
- _stext = .;
- _text = .; /* Text and read-only data */
- .text : {
- HEAD_TEXT
- TEXT_TEXT
- SCHED_TEXT
- CPUIDLE_TEXT
- LOCK_TEXT
- KPROBES_TEXT
- *(.fixup)
- *(.gnu.warning)
- } = 0xcb
-
- _etext = .; /* End of text section */
-
- EXCEPTION_TABLE(16)
- BUG_TABLE
-
- RO_DATA(PAGE_SIZE)
-
- /* writeable */
- _sdata = .; /* Start of rw data section */
- RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE)
- _edata = .;
-
- /* might get freed after init */
- . = ALIGN(PAGE_SIZE);
- .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
- __smp_locks = .;
- *(.smp_locks)
- __smp_locks_end = .;
- }
-
- /* will be freed after init */
- . = ALIGN(PAGE_SIZE); /* Init code and data */
- __init_begin = .;
- INIT_TEXT_SECTION(PAGE_SIZE)
- INIT_DATA_SECTION(16)
- . = ALIGN(4);
- __alt_instructions = .;
- .altinstructions : { *(.altinstructions) }
- __alt_instructions_end = .;
- .altinstr_replacement : { *(.altinstr_replacement) }
- /* .exit.text is discard at runtime, not link time, to deal with references
- from .altinstructions and .eh_frame */
- .exit.text : { EXIT_TEXT; }
- .exit.data : { EXIT_DATA; }
-
- PERCPU_SECTION(32)
- . = ALIGN(PAGE_SIZE);
- __init_end = .;
- /* freed after init ends here */
-
- BSS_SECTION(0, PAGE_SIZE, 4)
-
- _end = . ;
-
- /* This is where the kernel creates the early boot page tables */
- . = ALIGN(PAGE_SIZE);
- pg0 = .;
-
- STABS_DEBUG
-
- DWARF_DEBUG
-
- /* Sections to be discarded */
- DISCARDS
-}
+++ /dev/null
-#
-# Makefile for the MN10300-specific library files..
-#
-
-lib-y = delay.o usercopy.o checksum.o bitops.o memcpy.o memmove.o memset.o
-lib-y += do_csum.o
-lib-y += __ashldi3.o __ashrdi3.o __lshrdi3.o negdi2.o __ucmpdi2.o
+++ /dev/null
-/* MN10300 64-bit arithmetic left shift
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <asm/cache.h>
-
- .text
- .balign L1_CACHE_BYTES
-
-###############################################################################
-#
-# unsigned long long __ashldi3(unsigned long long value [D1:D0],
-# unsigned by [(12,SP)])
-#
-###############################################################################
- .globl __ashldi3
- .type __ashldi3,@function
-__ashldi3:
- mov (12,sp),a0
- and +63,a0
- beq __ashldi3_zero
-
- cmp +31,a0
- bhi __ashldi3_32plus
-
- # the count is in the range 1-31
- asl a0,d1
-
- mov +32,a1
- sub a0,a1,a1 # a1 = 32 - count
- lsr a1,d0,a1 # get overflow from LSW -> MSW
-
- or_asl a1,d1,a0,d0 # insert overflow into MSW and
- # shift the LSW
- rets
-
- .balign L1_CACHE_BYTES
- # the count is in the range 32-63
-__ashldi3_32plus:
- asl a0,d0,d1
- clr d0
-__ashldi3_zero:
- rets
-
- .size __ashldi3, .-__ashldi3
+++ /dev/null
-/* MN10300 64-bit arithmetic right shift
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <asm/cache.h>
-
- .text
- .balign L1_CACHE_BYTES
-
-###############################################################################
-#
-# unsigned long long __ashrdi3(unsigned long long value [D1:D0],
-# unsigned by [(12,SP)])
-#
-###############################################################################
- .globl __ashrdi3
- .type __ashrdi3,@function
-__ashrdi3:
- mov (12,sp),a0
- and +63,a0
- beq __ashrdi3_zero
-
- cmp +31,a0
- bhi __ashrdi3_32plus
-
- # the count is in the range 1-31
- lsr a0,d0
-
- mov +32,a1
- sub a0,a1,a1 # a1 = 32 - count
- asl a1,d1,a1 # get underflow from MSW -> LSW
-
- or_asr a1,d0,a0,d1 # insert underflow into LSW and
- # shift the MSW
- rets
-
- .balign L1_CACHE_BYTES
- # the count is in the range 32-63
-__ashrdi3_32plus:
- asr a0,d1,d0
- ext d0 # sign-extend result through MDR
- mov mdr,d1
-__ashrdi3_zero:
- rets
-
- .size __ashrdi3, .-__ashrdi3
+++ /dev/null
-/* MN10300 64-bit logical right shift
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#include <asm/cache.h>
-
- .text
- .balign L1_CACHE_BYTES
-
-###############################################################################
-#
-# unsigned long long __lshrdi3(unsigned long long value [D1:D0],
-# unsigned by [(12,SP)])
-#
-###############################################################################
- .globl __lshrdi3
- .type __lshrdi3,@function
-__lshrdi3:
- mov (12,sp),a0
- and +63,a0
- beq __lshrdi3_zero
-
- cmp +31,a0
- bhi __lshrdi3_32plus
-
- # the count is in the range 1-31
- lsr a0,d0
-
- mov +32,a1
- sub a0,a1,a1 # a1 = 32 - count
- asl a1,d1,a1 # get underflow from MSW -> LSW
-
- or_lsr a1,d0,a0,d1 # insert underflow into LSW and
- # shift the MSW
- rets
-
- .balign L1_CACHE_BYTES
- # the count is in the range 32-63
-__lshrdi3_32plus:
- lsr a0,d1,d0
- clr d1
-__lshrdi3_zero:
- rets
-
- .size __lshrdi3, .-__lshrdi3
+++ /dev/null
-/* __ucmpdi2.S: 64-bit unsigned compare
- *
- * Copyright (C) 2008 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-
- .text
- .p2align 4
-
-###############################################################################
-#
-# int __ucmpdi2(unsigned long long a [D0:D1],
-# unsigned long long b [(SP,12),(SP,16)])
-#
-# - returns 0, 1, or 2 as a <, =, > b respectively.
-#
-###############################################################################
- .globl __ucmpdi2
- .type __ucmpdi2,@function
-__ucmpdi2:
- mov (12,sp),a0 # b.lsw
- mov (16,sp),a1 # b.msw
-
- sub a0,d0
- subc a1,d1 # may clear Z, never sets it
- bne __ucmpdi2_differ # a.msw != b.msw
- mov +1,d0
- rets
-
-__ucmpdi2_differ:
- # C flag is set if LE, clear if GE
- subc d0,d0 # -1 if LE, 0 if GE
- add +1,d0 # 0 if LE, 1 if GE
- add d0,d0 # 0 if LE, 2 if GE
- rets
-
- .size __ucmpdi2, .-__ucmpdi2
+++ /dev/null
-/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
-/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public Licence as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public Licence for more details.
-
-You should have received a copy of the GNU General Public Licence
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#define BITS_PER_UNIT 8
-
-typedef int SItype __attribute__((mode(SI)));
-typedef unsigned int USItype __attribute__((mode(SI)));
-typedef int DItype __attribute__((mode(DI)));
-typedef int word_type __attribute__((mode(__word__)));
-
-struct DIstruct {
- SItype low;
- SItype high;
-};
-
-union DIunion {
- struct DIstruct s;
- DItype ll;
-};
-
-DItype __ashrdi3(DItype u, word_type b)
-{
- union DIunion w;
- union DIunion uu;
- word_type bm;
-
- if (b == 0)
- return u;
-
- uu.ll = u;
-
- bm = (sizeof(SItype) * BITS_PER_UNIT) - b;
- if (bm <= 0) {
- /* w.s.high = 1..1 or 0..0 */
- w.s.high = uu.s.high >> (sizeof(SItype) * BITS_PER_UNIT - 1);
- w.s.low = uu.s.high >> -bm;
- } else {
- USItype carries = (USItype)uu.s.high << bm;
- w.s.high = uu.s.high >> b;
- w.s.low = ((USItype)uu.s.low >> b) | carries;
- }
-
- return w.ll;
-}
+++ /dev/null
-/* MN10300 Non-trivial bit operations
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/module.h>
-#include <asm/bitops.h>
-
-/*
- * try flipping a bit using BSET and BCLR
- */
-void change_bit(unsigned long nr, volatile void *addr)
-{
- if (test_bit(nr, addr))
- goto try_clear_bit;
-
-try_set_bit:
- if (!test_and_set_bit(nr, addr))
- return;
-
-try_clear_bit:
- if (test_and_clear_bit(nr, addr))
- return;
-
- goto try_set_bit;
-}
-
-/*
- * try flipping a bit using BSET and BCLR and returning the old value
- */
-int test_and_change_bit(unsigned long nr, volatile void *addr)
-{
- if (test_bit(nr, addr))
- goto try_clear_bit;
-
-try_set_bit:
- if (!test_and_set_bit(nr, addr))
- return 0;
-
-try_clear_bit:
- if (test_and_clear_bit(nr, addr))
- return 1;
-
- goto try_set_bit;
-}
+++ /dev/null
-/* MN10300 Optimised checksumming wrappers
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <asm/byteorder.h>
-#include <linux/uaccess.h>
-#include <asm/checksum.h>
-#include "internal.h"
-
-static inline unsigned short from32to16(__wsum sum)
-{
- asm(" add %1,%0 \n"
- " addc 0xffff,%0 \n"
- : "=r" (sum)
- : "r" (sum << 16), "0" (sum & 0xffff0000)
- : "cc"
- );
- return sum >> 16;
-}
-
-__sum16 ip_fast_csum(const void *iph, unsigned int ihl)
-{
- return ~do_csum(iph, ihl * 4);
-}
-EXPORT_SYMBOL(ip_fast_csum);
-
-__wsum csum_partial(const void *buff, int len, __wsum sum)
-{
- __wsum result;
-
- result = do_csum(buff, len);
- result += sum;
- if (sum > result)
- result++;
- return result;
-}
-EXPORT_SYMBOL(csum_partial);
-
-__sum16 ip_compute_csum(const void *buff, int len)
-{
- return ~from32to16(do_csum(buff, len));
-}
-EXPORT_SYMBOL(ip_compute_csum);
-
-__wsum csum_partial_copy(const void *src, void *dst, int len, __wsum sum)
-{
- copy_from_user(dst, src, len);
- return csum_partial(dst, len, sum);
-}
-EXPORT_SYMBOL(csum_partial_copy);
-
-__wsum csum_partial_copy_nocheck(const void *src, void *dst,
- int len, __wsum sum)
-{
- sum = csum_partial(src, len, sum);
- memcpy(dst, src, len);
- return sum;
-}
-EXPORT_SYMBOL(csum_partial_copy_nocheck);
-
-__wsum csum_partial_copy_from_user(const void *src, void *dst,
- int len, __wsum sum,
- int *err_ptr)
-{
- int missing;
-
- missing = copy_from_user(dst, src, len);
- if (missing) {
- memset(dst + len - missing, 0, missing);
- *err_ptr = -EFAULT;
- }
-
- return csum_partial(dst, len, sum);
-}
-EXPORT_SYMBOL(csum_partial_copy_from_user);
-
-__wsum csum_and_copy_to_user(const void *src, void *dst,
- int len, __wsum sum,
- int *err_ptr)
-{
- int missing;
-
- missing = copy_to_user(dst, src, len);
- if (missing) {
- memset(dst + len - missing, 0, missing);
- *err_ptr = -EFAULT;
- }
-
- return csum_partial(src, len, sum);
-}
-EXPORT_SYMBOL(csum_and_copy_to_user);
+++ /dev/null
-/* MN10300 Short delay interpolation routines
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <asm/div64.h>
-
-/*
- * basic delay loop
- */
-void __delay(unsigned long loops)
-{
- int d0;
-
- asm volatile(
- " bra 1f \n"
- " .align 4 \n"
- "1: bra 2f \n"
- " .align 4 \n"
- "2: add -1,%0 \n"
- " bne 2b \n"
- : "=&d" (d0)
- : "0" (loops)
- : "cc");
-}
-EXPORT_SYMBOL(__delay);
-
-/*
- * handle a delay specified in terms of microseconds
- */
-void __udelay(unsigned long usecs)
-{
- unsigned long start, stop, cnt;
-
- /* usecs * CLK / 1E6 */
- stop = __muldiv64u(usecs, MN10300_TSCCLK, 1000000);
- start = TMTSCBC;
-
- do {
- cnt = start - TMTSCBC;
- } while (cnt < stop);
-}
-EXPORT_SYMBOL(__udelay);
+++ /dev/null
-/* Optimised simple memory checksum
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <asm/cache.h>
-
- .section .text
- .balign L1_CACHE_BYTES
-
-###############################################################################
-#
-# unsigned int do_csum(const unsigned char *buff, int len)
-#
-###############################################################################
- .globl do_csum
- .type do_csum,@function
-do_csum:
- movm [d2,d3],(sp)
- mov d1,d2 # count
- mov d0,a0 # buff
- mov a0,a1
- clr d1 # accumulator
-
- cmp +0,d2
- ble do_csum_done # check for zero length or negative
-
- # 4-byte align the buffer pointer
- btst +3,a0
- beq do_csum_now_4b_aligned
-
- btst +1,a0
- beq do_csum_addr_not_odd
- movbu (a0),d0
- inc a0
- asl +8,d0
- add d0,d1
- add -1,d2
-
-do_csum_addr_not_odd:
- cmp +2,d2
- bcs do_csum_fewer_than_4
- btst +2,a0
- beq do_csum_now_4b_aligned
- movhu (a0+),d0
- add d0,d1
- add -2,d2
- cmp +4,d2
- bcs do_csum_fewer_than_4
-
-do_csum_now_4b_aligned:
- # we want to checksum as much as we can in chunks of 32 bytes
- cmp +31,d2
- bls do_csum_remainder # 4-byte aligned remainder
-
- add -32,d2
- mov +32,d3
-
-do_csum_loop:
- mov (a0+),d0
- mov (a0+),e0
- mov (a0+),e1
- mov (a0+),e3
- add d0,d1
- addc e0,d1
- addc e1,d1
- addc e3,d1
- mov (a0+),d0
- mov (a0+),e0
- mov (a0+),e1
- mov (a0+),e3
- addc d0,d1
- addc e0,d1
- addc e1,d1
- addc e3,d1
- addc +0,d1
-
- sub d3,d2
- bcc do_csum_loop
-
- add d3,d2
- beq do_csum_done
-
-do_csum_remainder:
- # cut 16-31 bytes down to 0-15
- cmp +16,d2
- bcs do_csum_fewer_than_16
- mov (a0+),d0
- mov (a0+),e0
- mov (a0+),e1
- mov (a0+),e3
- add d0,d1
- addc e0,d1
- addc e1,d1
- addc e3,d1
- addc +0,d1
- add -16,d2
- beq do_csum_done
-
-do_csum_fewer_than_16:
- # copy the remaining whole words
- cmp +4,d2
- bcs do_csum_fewer_than_4
- cmp +8,d2
- bcs do_csum_one_word
- cmp +12,d2
- bcs do_csum_two_words
- mov (a0+),d0
- add d0,d1
- addc +0,d1
-do_csum_two_words:
- mov (a0+),d0
- add d0,d1
- addc +0,d1
-do_csum_one_word:
- mov (a0+),d0
- add d0,d1
- addc +0,d1
-
-do_csum_fewer_than_4:
- and +3,d2
- beq do_csum_done
- xor_cmp d0,d0,+2,d2
- bcs do_csum_fewer_than_2
- movhu (a0+),d0
- and +1,d2
- beq do_csum_add_last_bit
-do_csum_fewer_than_2:
- movbu (a0),d3
- add d3,d0
-do_csum_add_last_bit:
- add d0,d1
- addc +0,d1
-
-do_csum_done:
- # compress the checksum down to 16 bits
- mov +0xffff0000,d0
- and d1,d0
- asl +16,d1
- add d1,d0
- addc +0xffff,d0
- lsr +16,d0
-
- # flip the halves of the word result if the buffer was oddly aligned
- and +1,a1
- beq do_csum_not_oddly_aligned
- swaph d0,d0 # exchange bits 15:8 with 7:0
-
-do_csum_not_oddly_aligned:
- ret [d2,d3],8
-
- .size do_csum, .-do_csum
+++ /dev/null
-/* Internal definitions for the arch part of the kernel library
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-/*
- * do_csum.S
- */
-extern unsigned int do_csum(const unsigned char *, size_t);
+++ /dev/null
-/* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
-/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public Licence as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public Licence for more details.
-
-You should have received a copy of the GNU General Public Licence
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#define BITS_PER_UNIT 8
-
-typedef int SItype __attribute__((mode(SI)));
-typedef unsigned int USItype __attribute__((mode(SI)));
-typedef int DItype __attribute__((mode(DI)));
-typedef int word_type __attribute__((mode(__word__)));
-
-struct DIstruct {
- SItype low;
- SItype high;
-};
-
-union DIunion {
- struct DIstruct s;
- DItype ll;
-};
-
-DItype __lshrdi3(DItype u, word_type b)
-{
- union DIunion w;
- word_type bm;
- union DIunion uu;
-
- if (b == 0)
- return u;
-
- uu.ll = u;
-
- bm = (sizeof(SItype) * BITS_PER_UNIT) - b;
- if (bm <= 0) {
- w.s.high = 0;
- w.s.low = (USItype) uu.s.high >> -bm;
- } else {
- USItype carries = (USItype) uu.s.high << bm;
- w.s.high = (USItype) uu.s.high >> b;
- w.s.low = ((USItype) uu.s.low >> b) | carries;
- }
-
- return w.ll;
-}
+++ /dev/null
-/* MN10300 Optimised simple memory to memory copy
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <asm/cache.h>
-
- .section .text
- .balign L1_CACHE_BYTES
-
-###############################################################################
-#
-# void *memcpy(void *dst, const void *src, size_t n)
-#
-###############################################################################
- .globl memcpy
- .type memcpy,@function
-memcpy:
- movm [d2,d3],(sp)
- mov d0,(12,sp)
- mov d1,(16,sp)
- mov (20,sp),d2 # count
- mov d0,a0 # dst
- mov d1,a1 # src
- mov d0,e3 # the return value
-
- cmp +0,d2
- beq memcpy_done # return if zero-length copy
-
- # see if the three parameters are all four-byte aligned
- or d0,d1,d3
- or d2,d3
- and +3,d3
- bne memcpy_1 # jump if not
-
- # we want to transfer as much as we can in chunks of 32 bytes
- cmp +31,d2
- bls memcpy_4_remainder # 4-byte aligned remainder
-
- movm [exreg1],(sp)
- add -32,d2
- mov +32,d3
-
-memcpy_4_loop:
- mov (a1+),d0
- mov (a1+),d1
- mov (a1+),e0
- mov (a1+),e1
- mov (a1+),e4
- mov (a1+),e5
- mov (a1+),e6
- mov (a1+),e7
- mov d0,(a0+)
- mov d1,(a0+)
- mov e0,(a0+)
- mov e1,(a0+)
- mov e4,(a0+)
- mov e5,(a0+)
- mov e6,(a0+)
- mov e7,(a0+)
-
- sub d3,d2
- bcc memcpy_4_loop
-
- movm (sp),[exreg1]
- add d3,d2
- beq memcpy_4_no_remainder
-
-memcpy_4_remainder:
- # cut 4-7 words down to 0-3
- cmp +16,d2
- bcs memcpy_4_three_or_fewer_words
- mov (a1+),d0
- mov (a1+),d1
- mov (a1+),e0
- mov (a1+),e1
- mov d0,(a0+)
- mov d1,(a0+)
- mov e0,(a0+)
- mov e1,(a0+)
- add -16,d2
- beq memcpy_4_no_remainder
-
- # copy the remaining 1, 2 or 3 words
-memcpy_4_three_or_fewer_words:
- cmp +8,d2
- bcs memcpy_4_one_word
- beq memcpy_4_two_words
- mov (a1+),d0
- mov d0,(a0+)
-memcpy_4_two_words:
- mov (a1+),d0
- mov d0,(a0+)
-memcpy_4_one_word:
- mov (a1+),d0
- mov d0,(a0+)
-
-memcpy_4_no_remainder:
- # check we copied the correct amount
- # TODO: REMOVE CHECK
- sub e3,a0,d2
- mov (20,sp),d1
- cmp d2,d1
- beq memcpy_done
- break
- break
- break
-
-memcpy_done:
- mov e3,a0
- ret [d2,d3],8
-
- # handle misaligned copying
-memcpy_1:
- add -1,d2
- mov +1,d3
- setlb # setlb requires the next insns
- # to occupy exactly 4 bytes
-
- sub d3,d2
- movbu (a1),d0
- movbu d0,(a0)
- add_add d3,a1,d3,a0
- lcc
-
- mov e3,a0
- ret [d2,d3],8
-
-memcpy_end:
- .size memcpy, memcpy_end-memcpy
+++ /dev/null
-/* MN10300 Optimised simple memory to memory copy, with support for overlapping
- * regions
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <asm/cache.h>
-
- .section .text
- .balign L1_CACHE_BYTES
-
-###############################################################################
-#
-# void *memmove(void *dst, const void *src, size_t n)
-#
-###############################################################################
- .globl memmove
- .type memmove,@function
-memmove:
- # fall back to memcpy if dst < src to work bottom up
- cmp d1,d0
- bcs memmove_memcpy
-
- # work top down
- movm [d2,d3],(sp)
- mov d0,(12,sp)
- mov d1,(16,sp)
- mov (20,sp),d2 # count
- add d0,d2,a0 # dst end
- add d1,d2,a1 # src end
- mov d0,e3 # the return value
-
- cmp +0,d2
- beq memmove_done # return if zero-length copy
-
- # see if the three parameters are all four-byte aligned
- or d0,d1,d3
- or d2,d3
- and +3,d3
- bne memmove_1 # jump if not
-
- # we want to transfer as much as we can in chunks of 32 bytes
- add -4,a1
- cmp +31,d2
- bls memmove_4_remainder # 4-byte aligned remainder
-
- add -32,d2
- mov +32,d3
-
-memmove_4_loop:
- mov (a1),d0
- sub_sub +4,a1,+4,a0
- mov d0,(a0)
- mov (a1),d1
- sub_sub +4,a1,+4,a0
- mov d1,(a0)
-
- mov (a1),d0
- sub_sub +4,a1,+4,a0
- mov d0,(a0)
- mov (a1),d1
- sub_sub +4,a1,+4,a0
- mov d1,(a0)
-
- mov (a1),d0
- sub_sub +4,a1,+4,a0
- mov d0,(a0)
- mov (a1),d1
- sub_sub +4,a1,+4,a0
- mov d1,(a0)
-
- mov (a1),d0
- sub_sub +4,a1,+4,a0
- mov d0,(a0)
- mov (a1),d1
- sub_sub +4,a1,+4,a0
- mov d1,(a0)
-
- sub d3,d2
- bcc memmove_4_loop
-
- add d3,d2
- beq memmove_4_no_remainder
-
-memmove_4_remainder:
- # cut 4-7 words down to 0-3
- cmp +16,d2
- bcs memmove_4_three_or_fewer_words
- mov (a1),d0
- sub_sub +4,a1,+4,a0
- mov d0,(a0)
- mov (a1),d1
- sub_sub +4,a1,+4,a0
- mov d1,(a0)
- mov (a1),e0
- sub_sub +4,a1,+4,a0
- mov e0,(a0)
- mov (a1),e1
- sub_sub +4,a1,+4,a0
- mov e1,(a0)
- add -16,d2
- beq memmove_4_no_remainder
-
- # copy the remaining 1, 2 or 3 words
-memmove_4_three_or_fewer_words:
- cmp +8,d2
- bcs memmove_4_one_word
- beq memmove_4_two_words
- mov (a1),d0
- sub_sub +4,a1,+4,a0
- mov d0,(a0)
-memmove_4_two_words:
- mov (a1),d0
- sub_sub +4,a1,+4,a0
- mov d0,(a0)
-memmove_4_one_word:
- mov (a1),d0
- sub_sub +4,a1,+4,a0
- mov d0,(a0)
-
-memmove_4_no_remainder:
- # check we copied the correct amount
- # TODO: REMOVE CHECK
- sub e3,a0,d2
- beq memmove_done
- break
- break
- break
-
-memmove_done:
- mov e3,a0
- ret [d2,d3],8
-
- # handle misaligned copying
-memmove_1:
- add -1,a1
- add -1,d2
- mov +1,d3
- setlb # setlb requires the next insns
- # to occupy exactly 4 bytes
-
- sub d3,d2
- movbu (a1),d0
- sub_sub d3,a1,d3,a0
- movbu d0,(a0)
- lcc
-
- mov e3,a0
- ret [d2,d3],8
-
-memmove_memcpy:
- jmp memcpy
-
-memmove_end:
- .size memmove, memmove_end-memmove
+++ /dev/null
-/* Optimised simple memory fill
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <asm/cache.h>
-
- .section .text
- .balign L1_CACHE_BYTES
-
-###############################################################################
-#
-# void *memset(void *dst, int c, size_t n)
-#
-###############################################################################
- .globl memset
- .type memset,@function
-memset:
- movm [d2,d3],(sp)
- mov d0,(12,sp)
- mov d1,(16,sp)
- mov (20,sp),d2 # count
- mov d0,a0 # dst
- mov d0,e3 # the return value
-
- cmp +0,d2
- beq memset_done # return if zero-length fill
-
- # see if the region parameters are four-byte aligned
- or d0,d2,d3
- and +3,d3
- bne memset_1 # jump if not
-
- extbu d1
- mov_asl d1,d3,8,d1
- or_asl d1,d3,8,d1
- or_asl d1,d3,8,d1
- or d3,d1
-
- # we want to transfer as much as we can in chunks of 32 bytes
- cmp +31,d2
- bls memset_4_remainder # 4-byte aligned remainder
-
- add -32,d2
- mov +32,d3
-
-memset_4_loop:
- mov d1,(a0+)
- mov d1,(a0+)
- mov d1,(a0+)
- mov d1,(a0+)
- mov d1,(a0+)
- mov d1,(a0+)
- mov d1,(a0+)
- mov d1,(a0+)
-
- sub d3,d2
- bcc memset_4_loop
-
- add d3,d2
- beq memset_4_no_remainder
-
-memset_4_remainder:
- # cut 4-7 words down to 0-3
- cmp +16,d2
- bcs memset_4_three_or_fewer_words
- mov d1,(a0+)
- mov d1,(a0+)
- mov d1,(a0+)
- mov d1,(a0+)
- add -16,d2
- beq memset_4_no_remainder
-
- # copy the remaining 1, 2 or 3 words
-memset_4_three_or_fewer_words:
- cmp +8,d2
- bcs memset_4_one_word
- beq memset_4_two_words
- mov d1,(a0+)
-memset_4_two_words:
- mov d1,(a0+)
-memset_4_one_word:
- mov d1,(a0+)
-
-memset_4_no_remainder:
- # check we set the correct amount
- # TODO: REMOVE CHECK
- sub e3,a0,d2
- mov (20,sp),d1
- cmp d2,d1
- beq memset_done
- break
- break
- break
-
-memset_done:
- mov e3,a0
- ret [d2,d3],8
-
- # handle misaligned copying
-memset_1:
- add -1,d2
- mov +1,d3
- setlb # setlb requires the next insns
- # to occupy exactly 4 bytes
-
- sub d3,d2
- movbu d1,(a0)
- inc a0
- lcc
-
- mov e3,a0
- ret [d2,d3],8
-
-memset_end:
- .size memset, memset_end-memset
+++ /dev/null
-/* More subroutines needed by GCC output code on some machines. */
-/* Compile this one with gcc. */
-/* Copyright (C) 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public Licence as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-In addition to the permissions in the GNU General Public Licence, the
-Free Software Foundation gives you unlimited permission to link the
-compiled version of this file into combinations with other programs,
-and to distribute those combinations without any restriction coming
-from the use of this file. (The General Public Licence restrictions
-do apply in other respects; for example, they cover modification of
-the file, and distribution when not linked into a combine
-executable.)
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public Licence for more details.
-
-You should have received a copy of the GNU General Public Licence
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-/* It is incorrect to include config.h here, because this file is being
- compiled for the target, and hence definitions concerning only the host
- do not apply. */
-
-#include <linux/types.h>
-
-union DWunion {
- s64 ll;
- struct {
- s32 low;
- s32 high;
- } s;
-};
-
-s64 __negdi2(s64 u)
-{
- union DWunion w;
- union DWunion uu;
-
- uu.ll = u;
-
- w.s.low = -uu.s.low;
- w.s.high = -uu.s.high - ((u32) w.s.low > 0);
-
- return w.ll;
-}
+++ /dev/null
-/* MN10300 Userspace accessor functions
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/uaccess.h>
-
-/*
- * Copy a null terminated string from userspace.
- */
-#define __do_strncpy_from_user(dst, src, count, res) \
-do { \
- int w; \
- asm volatile( \
- " mov %1,%0\n" \
- " cmp 0,%1\n" \
- " beq 2f\n" \
- "0:\n" \
- " movbu (%5),%2\n" \
- "1:\n" \
- " movbu %2,(%6)\n" \
- " inc %5\n" \
- " inc %6\n" \
- " cmp 0,%2\n" \
- " beq 2f\n" \
- " add -1,%1\n" \
- " bne 0b\n" \
- "2:\n" \
- " sub %1,%0\n" \
- "3:\n" \
- " .section .fixup,\"ax\"\n" \
- "4:\n" \
- " mov %3,%0\n" \
- " jmp 3b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
- " .balign 4\n" \
- " .long 0b,4b\n" \
- " .long 1b,4b\n" \
- " .previous" \
- :"=&r"(res), "=r"(count), "=&r"(w) \
- :"i"(-EFAULT), "1"(count), "a"(src), "a"(dst) \
- : "memory", "cc"); \
-} while (0)
-
-long
-strncpy_from_user(char *dst, const char *src, long count)
-{
- long res = -EFAULT;
- if (access_ok(VERIFY_READ, src, 1))
- __do_strncpy_from_user(dst, src, count, res);
- return res;
-}
-
-
-/*
- * Clear a userspace memory
- */
-#define __do_clear_user(addr, size) \
-do { \
- int w; \
- asm volatile( \
- " cmp 0,%0\n" \
- " beq 1f\n" \
- " clr %1\n" \
- "0: movbu %1,(%3,%2)\n" \
- " inc %3\n" \
- " cmp %0,%3\n" \
- " bne 0b\n" \
- "1:\n" \
- " sub %3,%0\n" \
- "2:\n" \
- ".section .fixup,\"ax\"\n" \
- "3: jmp 2b\n" \
- ".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .balign 4\n" \
- " .long 0b,3b\n" \
- ".previous\n" \
- : "+r"(size), "=&r"(w) \
- : "a"(addr), "d"(0) \
- : "memory", "cc"); \
-} while (0)
-
-unsigned long
-__clear_user(void *to, unsigned long n)
-{
- __do_clear_user(to, n);
- return n;
-}
-
-unsigned long
-clear_user(void *to, unsigned long n)
-{
- if (access_ok(VERIFY_WRITE, to, n))
- __do_clear_user(to, n);
- return n;
-}
-
-/*
- * Return the size of a string (including the ending 0)
- *
- * Return 0 on exception, a value greater than N if too long
- */
-long strnlen_user(const char *s, long n)
-{
- unsigned long res, w;
-
- if (!__addr_ok(s))
- return 0;
-
- if (n < 0 || n + (u_long) s > current_thread_info()->addr_limit.seg)
- n = current_thread_info()->addr_limit.seg - (u_long)s;
-
- asm volatile(
- "0: cmp %4,%0\n"
- " beq 2f\n"
- "1: movbu (%0,%3),%1\n"
- " inc %0\n"
- " cmp 0,%1\n"
- " beq 3f\n"
- " bra 0b\n"
- "2: clr %0\n"
- "3:\n"
- ".section .fixup,\"ax\"\n"
- "4: jmp 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .balign 4\n"
- " .long 1b,4b\n"
- ".previous\n"
- :"=d"(res), "=&r"(w)
- :"0"(0), "a"(s), "r"(n)
- : "memory", "cc");
- return res;
-}
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0
-#
-# MN10300 CPU cache options
-#
-
-choice
- prompt "CPU Caching mode"
- default MN10300_CACHE_WBACK
- help
- This option determines the caching mode for the kernel.
-
- Write-Back caching mode involves the all reads and writes causing
- the affected cacheline to be read into the cache first before being
- operated upon. Memory is not then updated by a write until the cache
- is filled and a cacheline needs to be displaced from the cache to
- make room. Only at that point is it written back.
-
- Write-Through caching only fetches cachelines from memory on a
- read. Writes always get written directly to memory. If the affected
- cacheline is also in cache, it will be updated too.
-
- The final option is to turn of caching entirely.
-
-config MN10300_CACHE_WBACK
- bool "Write-Back"
- help
- The dcache operates in delayed write-back mode. It must be manually
- flushed if writes are made that subsequently need to be executed or
- to be DMA'd by a device.
-
-config MN10300_CACHE_WTHRU
- bool "Write-Through"
- help
- The dcache operates in immediate write-through mode. Writes are
- committed to RAM immediately in addition to being stored in the
- cache. This means that the written data is immediately available for
- execution or DMA.
-
- This is not available for use with an SMP kernel if cache flushing
- and invalidation by automatic purge register is not selected.
-
-config MN10300_CACHE_DISABLED
- bool "Disabled"
- help
- The icache and dcache are disabled.
-
-endchoice
-
-config MN10300_CACHE_ENABLED
- def_bool y if !MN10300_CACHE_DISABLED
-
-
-choice
- prompt "CPU cache flush/invalidate method"
- default MN10300_CACHE_MANAGE_BY_TAG if !AM34_2
- default MN10300_CACHE_MANAGE_BY_REG if AM34_2
- depends on MN10300_CACHE_ENABLED
- help
- This determines the method by which CPU cache flushing and
- invalidation is performed.
-
-config MN10300_CACHE_MANAGE_BY_TAG
- bool "Use the cache tag registers directly"
- depends on !(SMP && MN10300_CACHE_WTHRU)
-
-config MN10300_CACHE_MANAGE_BY_REG
- bool "Flush areas by way of automatic purge registers (AM34 only)"
- depends on AM34_2
-
-endchoice
-
-config MN10300_CACHE_INV_BY_TAG
- def_bool y if MN10300_CACHE_MANAGE_BY_TAG && MN10300_CACHE_ENABLED
-
-config MN10300_CACHE_INV_BY_REG
- def_bool y if MN10300_CACHE_MANAGE_BY_REG && MN10300_CACHE_ENABLED
-
-config MN10300_CACHE_FLUSH_BY_TAG
- def_bool y if MN10300_CACHE_MANAGE_BY_TAG && MN10300_CACHE_WBACK
-
-config MN10300_CACHE_FLUSH_BY_REG
- def_bool y if MN10300_CACHE_MANAGE_BY_REG && MN10300_CACHE_WBACK
-
-
-config MN10300_HAS_CACHE_SNOOP
- def_bool n
-
-config MN10300_CACHE_SNOOP
- bool "Use CPU Cache Snooping"
- depends on MN10300_CACHE_ENABLED && MN10300_HAS_CACHE_SNOOP
- default y
-
-config MN10300_CACHE_FLUSH_ICACHE
- def_bool y if MN10300_CACHE_WBACK && !MN10300_CACHE_SNOOP
- help
- Set if we need the dcache flushing before the icache is invalidated.
-
-config MN10300_CACHE_INV_ICACHE
- def_bool y if MN10300_CACHE_WTHRU && !MN10300_CACHE_SNOOP
- help
- Set if we need the icache to be invalidated, even if the dcache is in
- write-through mode and doesn't need flushing.
-
-#
-# The kernel debugger gets its own separate cache flushing functions
-#
-config MN10300_DEBUGGER_CACHE_FLUSH_BY_TAG
- def_bool y if KERNEL_DEBUGGER && \
- MN10300_CACHE_WBACK && \
- !MN10300_CACHE_SNOOP && \
- MN10300_CACHE_MANAGE_BY_TAG
- help
- Set if the debugger needs to flush the dcache and invalidate the
- icache using the cache tag registers to make breakpoints work.
-
-config MN10300_DEBUGGER_CACHE_FLUSH_BY_REG
- def_bool y if KERNEL_DEBUGGER && \
- MN10300_CACHE_WBACK && \
- !MN10300_CACHE_SNOOP && \
- MN10300_CACHE_MANAGE_BY_REG
- help
- Set if the debugger needs to flush the dcache and invalidate the
- icache using automatic purge registers to make breakpoints work.
-
-config MN10300_DEBUGGER_CACHE_INV_BY_TAG
- def_bool y if KERNEL_DEBUGGER && \
- MN10300_CACHE_WTHRU && \
- !MN10300_CACHE_SNOOP && \
- MN10300_CACHE_MANAGE_BY_TAG
- help
- Set if the debugger needs to invalidate the icache using the cache
- tag registers to make breakpoints work.
-
-config MN10300_DEBUGGER_CACHE_INV_BY_REG
- def_bool y if KERNEL_DEBUGGER && \
- MN10300_CACHE_WTHRU && \
- !MN10300_CACHE_SNOOP && \
- MN10300_CACHE_MANAGE_BY_REG
- help
- Set if the debugger needs to invalidate the icache using automatic
- purge registers to make breakpoints work.
-
-config MN10300_DEBUGGER_CACHE_NO_FLUSH
- def_bool y if KERNEL_DEBUGGER && \
- (MN10300_CACHE_DISABLED || MN10300_CACHE_SNOOP)
- help
- Set if the debugger does not need to flush the dcache and/or
- invalidate the icache to make breakpoints work.
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0
-#
-# Makefile for the MN10300-specific memory management code
-#
-
-cache-smp-wback-$(CONFIG_MN10300_CACHE_WBACK) := cache-smp-flush.o
-
-cacheflush-y := cache.o
-cacheflush-$(CONFIG_SMP) += cache-smp.o cache-smp-inv.o $(cache-smp-wback-y)
-cacheflush-$(CONFIG_MN10300_CACHE_INV_ICACHE) += cache-inv-icache.o
-cacheflush-$(CONFIG_MN10300_CACHE_FLUSH_ICACHE) += cache-flush-icache.o
-cacheflush-$(CONFIG_MN10300_CACHE_INV_BY_TAG) += cache-inv-by-tag.o
-cacheflush-$(CONFIG_MN10300_CACHE_INV_BY_REG) += cache-inv-by-reg.o
-cacheflush-$(CONFIG_MN10300_CACHE_FLUSH_BY_TAG) += cache-flush-by-tag.o
-cacheflush-$(CONFIG_MN10300_CACHE_FLUSH_BY_REG) += cache-flush-by-reg.o
-
-cacheflush-$(CONFIG_MN10300_DEBUGGER_CACHE_FLUSH_BY_TAG) += \
- cache-dbg-flush-by-tag.o cache-dbg-inv-by-tag.o
-cacheflush-$(CONFIG_MN10300_DEBUGGER_CACHE_FLUSH_BY_REG) += \
- cache-dbg-flush-by-reg.o
-cacheflush-$(CONFIG_MN10300_DEBUGGER_CACHE_INV_BY_TAG) += \
- cache-dbg-inv-by-tag.o cache-dbg-inv.o
-cacheflush-$(CONFIG_MN10300_DEBUGGER_CACHE_INV_BY_REG) += \
- cache-dbg-inv-by-reg.o cache-dbg-inv.o
-
-cacheflush-$(CONFIG_MN10300_CACHE_DISABLED) := cache-disabled.o
-
-obj-y := \
- init.o fault.o pgtable.o extable.o tlb-mn10300.o mmu-context.o \
- misalignment.o dma-alloc.o $(cacheflush-y)
-
-obj-$(CONFIG_SMP) += tlb-smp.o
+++ /dev/null
-/* MN10300 CPU cache invalidation routines, using automatic purge registers
- *
- * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/smp.h>
-#include <asm/page.h>
-#include <asm/cache.h>
-#include <asm/irqflags.h>
-#include <asm/cacheflush.h>
-#include "cache.inc"
-
- .am33_2
-
-###############################################################################
-#
-# void debugger_local_cache_flushinv(void)
-# Flush the entire data cache back to RAM and invalidate the icache
-#
-###############################################################################
- ALIGN
- .globl debugger_local_cache_flushinv
- .type debugger_local_cache_flushinv,@function
-debugger_local_cache_flushinv:
- #
- # firstly flush the dcache
- #
- movhu (CHCTR),d0
- btst CHCTR_DCEN|CHCTR_ICEN,d0
- beq debugger_local_cache_flushinv_end
-
- mov DCPGCR,a0
-
- mov epsw,d1
- and ~EPSW_IE,epsw
- or EPSW_NMID,epsw
- nop
-
- btst CHCTR_DCEN,d0
- beq debugger_local_cache_flushinv_no_dcache
-
- # wait for busy bit of area purge
- setlb
- mov (a0),d0
- btst DCPGCR_DCPGBSY,d0
- lne
-
- # set mask
- clr d0
- mov d0,(DCPGMR)
-
- # area purge
- #
- # DCPGCR = DCPGCR_DCP
- #
- mov DCPGCR_DCP,d0
- mov d0,(a0)
-
- # wait for busy bit of area purge
- setlb
- mov (a0),d0
- btst DCPGCR_DCPGBSY,d0
- lne
-
-debugger_local_cache_flushinv_no_dcache:
- #
- # secondly, invalidate the icache if it is enabled
- #
- mov CHCTR,a0
- movhu (a0),d0
- btst CHCTR_ICEN,d0
- beq debugger_local_cache_flushinv_done
-
- invalidate_icache 0
-
-debugger_local_cache_flushinv_done:
- mov d1,epsw
-
-debugger_local_cache_flushinv_end:
- ret [],0
- .size debugger_local_cache_flushinv,.-debugger_local_cache_flushinv
-
-###############################################################################
-#
-# void debugger_local_cache_flushinv_one(u8 *addr)
-#
-# Invalidate one particular cacheline if it's in the icache
-#
-###############################################################################
- ALIGN
- .globl debugger_local_cache_flushinv_one
- .type debugger_local_cache_flushinv_one,@function
-debugger_local_cache_flushinv_one:
- movhu (CHCTR),d1
- btst CHCTR_DCEN|CHCTR_ICEN,d1
- beq debugger_local_cache_flushinv_one_end
- btst CHCTR_DCEN,d1
- beq debugger_local_cache_flushinv_one_no_dcache
-
- # round cacheline addr down
- and L1_CACHE_TAG_MASK,d0
- mov d0,a1
- mov d0,d1
-
- # determine the dcache purge control reg address
- mov DCACHE_PURGE(0,0),a0
- and L1_CACHE_TAG_ENTRY,d0
- add d0,a0
-
- # retain valid entries in the cache
- or L1_CACHE_TAG_VALID,d1
-
- # conditionally purge this line in all ways
- mov d1,(L1_CACHE_WAYDISP*0,a0)
-
-debugger_local_cache_flushinv_one_no_dcache:
- #
- # now try to flush the icache
- #
- mov CHCTR,a0
- movhu (a0),d0
- btst CHCTR_ICEN,d0
- beq debugger_local_cache_flushinv_one_end
-
- LOCAL_CLI_SAVE(d1)
-
- mov ICIVCR,a0
-
- # wait for the invalidator to quiesce
- setlb
- mov (a0),d0
- btst ICIVCR_ICIVBSY,d0
- lne
-
- # set the mask
- mov L1_CACHE_TAG_MASK,d0
- mov d0,(ICIVMR)
-
- # invalidate the cache line at the given address
- or ICIVCR_ICI,a1
- mov a1,(a0)
-
- # wait for the invalidator to quiesce again
- setlb
- mov (a0),d0
- btst ICIVCR_ICIVBSY,d0
- lne
-
- LOCAL_IRQ_RESTORE(d1)
-
-debugger_local_cache_flushinv_one_end:
- ret [],0
- .size debugger_local_cache_flushinv_one,.-debugger_local_cache_flushinv_one
+++ /dev/null
-/* MN10300 CPU cache invalidation routines, using direct tag flushing
- *
- * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/smp.h>
-#include <asm/page.h>
-#include <asm/cache.h>
-#include <asm/irqflags.h>
-#include <asm/cacheflush.h>
-#include "cache.inc"
-
- .am33_2
-
-###############################################################################
-#
-# void debugger_local_cache_flushinv(void)
-#
-# Flush the entire data cache back to RAM and invalidate the icache
-#
-###############################################################################
- ALIGN
- .globl debugger_local_cache_flushinv
- .type debugger_local_cache_flushinv,@function
-debugger_local_cache_flushinv:
- #
- # firstly flush the dcache
- #
- movhu (CHCTR),d0
- btst CHCTR_DCEN|CHCTR_ICEN,d0
- beq debugger_local_cache_flushinv_end
-
- btst CHCTR_DCEN,d0
- beq debugger_local_cache_flushinv_no_dcache
-
- # read the addresses tagged in the cache's tag RAM and attempt to flush
- # those addresses specifically
- # - we rely on the hardware to filter out invalid tag entry addresses
- mov DCACHE_TAG(0,0),a0 # dcache tag RAM access address
- mov DCACHE_PURGE(0,0),a1 # dcache purge request address
- mov L1_CACHE_NWAYS*L1_CACHE_NENTRIES,e0 # total number of entries
-
-mn10300_local_dcache_flush_loop:
- mov (a0),d0
- and L1_CACHE_TAG_MASK,d0
- or L1_CACHE_TAG_VALID,d0 # retain valid entries in the
- # cache
- mov d0,(a1) # conditional purge
-
- add L1_CACHE_BYTES,a0
- add L1_CACHE_BYTES,a1
- add -1,e0
- bne mn10300_local_dcache_flush_loop
-
-debugger_local_cache_flushinv_no_dcache:
- #
- # secondly, invalidate the icache if it is enabled
- #
- mov CHCTR,a0
- movhu (a0),d0
- btst CHCTR_ICEN,d0
- beq debugger_local_cache_flushinv_end
-
- invalidate_icache 1
-
-debugger_local_cache_flushinv_end:
- ret [],0
- .size debugger_local_cache_flushinv,.-debugger_local_cache_flushinv
-
-###############################################################################
-#
-# void debugger_local_cache_flushinv_one(u8 *addr)
-#
-# Invalidate one particular cacheline if it's in the icache
-#
-###############################################################################
- ALIGN
- .globl debugger_local_cache_flushinv_one
- .type debugger_local_cache_flushinv_one,@function
-debugger_local_cache_flushinv_one:
- movhu (CHCTR),d1
- btst CHCTR_DCEN|CHCTR_ICEN,d1
- beq debugger_local_cache_flushinv_one_end
- btst CHCTR_DCEN,d1
- beq debugger_local_cache_flushinv_one_icache
-
- # round cacheline addr down
- and L1_CACHE_TAG_MASK,d0
- mov d0,a1
-
- # determine the dcache purge control reg address
- mov DCACHE_PURGE(0,0),a0
- and L1_CACHE_TAG_ENTRY,d0
- add d0,a0
-
- # retain valid entries in the cache
- or L1_CACHE_TAG_VALID,a1
-
- # conditionally purge this line in all ways
- mov a1,(L1_CACHE_WAYDISP*0,a0)
-
- # now go and do the icache
- bra debugger_local_cache_flushinv_one_icache
-
-debugger_local_cache_flushinv_one_end:
- ret [],0
- .size debugger_local_cache_flushinv_one,.-debugger_local_cache_flushinv_one
+++ /dev/null
-/* MN10300 CPU cache invalidation routines, using automatic purge registers
- *
- * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/cache.h>
-#include <asm/irqflags.h>
-#include <asm/cacheflush.h>
-#include "cache.inc"
-
- .am33_2
-
- .globl debugger_local_cache_flushinv_one
-
-###############################################################################
-#
-# void debugger_local_cache_flushinv_one(u8 *addr)
-#
-# Invalidate one particular cacheline if it's in the icache
-#
-###############################################################################
- ALIGN
- .globl debugger_local_cache_flushinv_one
- .type debugger_local_cache_flushinv_one,@function
-debugger_local_cache_flushinv_one:
- mov d0,a1
-
- mov CHCTR,a0
- movhu (a0),d0
- btst CHCTR_ICEN,d0
- beq mn10300_local_icache_inv_range_reg_end
-
- LOCAL_CLI_SAVE(d1)
-
- mov ICIVCR,a0
-
- # wait for the invalidator to quiesce
- setlb
- mov (a0),d0
- btst ICIVCR_ICIVBSY,d0
- lne
-
- # set the mask
- mov ~L1_CACHE_TAG_MASK,d0
- mov d0,(ICIVMR)
-
- # invalidate the cache line at the given address
- and ~L1_CACHE_TAG_MASK,a1
- or ICIVCR_ICI,a1
- mov a1,(a0)
-
- # wait for the invalidator to quiesce again
- setlb
- mov (a0),d0
- btst ICIVCR_ICIVBSY,d0
- lne
-
- LOCAL_IRQ_RESTORE(d1)
-
-mn10300_local_icache_inv_range_reg_end:
- ret [],0
- .size debugger_local_cache_flushinv_one,.-debugger_local_cache_flushinv_one
+++ /dev/null
-/* MN10300 CPU cache invalidation routines, using direct tag flushing
- *
- * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/smp.h>
-#include <asm/page.h>
-#include <asm/cache.h>
-#include <asm/irqflags.h>
-#include <asm/cacheflush.h>
-#include "cache.inc"
-
- .am33_2
-
- .globl debugger_local_cache_flushinv_one_icache
-
-###############################################################################
-#
-# void debugger_local_cache_flushinv_one(u8 *addr)
-#
-# Invalidate one particular cacheline if it's in the icache
-#
-###############################################################################
- ALIGN
- .globl debugger_local_cache_flushinv_one_icache
- .type debugger_local_cache_flushinv_one_icache,@function
-debugger_local_cache_flushinv_one_icache:
- movm [d3,a2],(sp)
-
- mov CHCTR,a2
- movhu (a2),d0
- btst CHCTR_ICEN,d0
- beq debugger_local_cache_flushinv_one_icache_end
-
- mov d0,a1
- and L1_CACHE_TAG_MASK,a1
-
- # read the tags from the tag RAM, and if they indicate a matching valid
- # cache line then we invalidate that line
- mov ICACHE_TAG(0,0),a0
- mov a1,d0
- and L1_CACHE_TAG_ENTRY,d0
- add d0,a0 # starting icache tag RAM
- # access address
-
- and ~(L1_CACHE_DISPARITY-1),a1 # determine comparator base
- or L1_CACHE_TAG_VALID,a1
- mov L1_CACHE_TAG_ADDRESS|L1_CACHE_TAG_VALID,d1
-
- LOCAL_CLI_SAVE(d3)
-
- # disable the icache
- movhu (a2),d0
- and ~CHCTR_ICEN,d0
- movhu d0,(a2)
-
- # and wait for it to calm down
- setlb
- movhu (a2),d0
- btst CHCTR_ICBUSY,d0
- lne
-
- # check all the way tags for this cache entry
- mov (a0),d0 # read the tag in the way 0 slot
- xor a1,d0
- and d1,d0
- beq debugger_local_icache_kill # jump if matched
-
- add L1_CACHE_WAYDISP,a0
- mov (a0),d0 # read the tag in the way 1 slot
- xor a1,d0
- and d1,d0
- beq debugger_local_icache_kill # jump if matched
-
- add L1_CACHE_WAYDISP,a0
- mov (a0),d0 # read the tag in the way 2 slot
- xor a1,d0
- and d1,d0
- beq debugger_local_icache_kill # jump if matched
-
- add L1_CACHE_WAYDISP,a0
- mov (a0),d0 # read the tag in the way 3 slot
- xor a1,d0
- and d1,d0
- bne debugger_local_icache_finish # jump if not matched
-
-debugger_local_icache_kill:
- mov d0,(a0) # kill the tag (D0 is 0 at this point)
-
-debugger_local_icache_finish:
- # wait for the cache to finish what it's doing
- setlb
- movhu (a2),d0
- btst CHCTR_ICBUSY,d0
- lne
-
- # and reenable it
- or CHCTR_ICEN,d0
- movhu d0,(a2)
- movhu (a2),d0
-
- # re-enable interrupts
- LOCAL_IRQ_RESTORE(d3)
-
-debugger_local_cache_flushinv_one_icache_end:
- ret [d3,a2],8
- .size debugger_local_cache_flushinv_one_icache,.-debugger_local_cache_flushinv_one_icache
-
-#ifdef CONFIG_MN10300_DEBUGGER_CACHE_INV_BY_TAG
- .globl debugger_local_cache_flushinv_one
- .type debugger_local_cache_flushinv_one,@function
-debugger_local_cache_flushinv_one = debugger_local_cache_flushinv_one_icache
-#endif
+++ /dev/null
-/* MN10300 CPU cache invalidation routines
- *
- * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/smp.h>
-#include <asm/page.h>
-#include <asm/cache.h>
-#include <asm/irqflags.h>
-#include <asm/cacheflush.h>
-#include "cache.inc"
-
- .am33_2
-
- .globl debugger_local_cache_flushinv
-
-###############################################################################
-#
-# void debugger_local_cache_flushinv(void)
-#
-# Invalidate the entire icache
-#
-###############################################################################
- ALIGN
- .globl debugger_local_cache_flushinv
- .type debugger_local_cache_flushinv,@function
-debugger_local_cache_flushinv:
- #
- # we only need to invalidate the icache in this cache mode
- #
- mov CHCTR,a0
- movhu (a0),d0
- btst CHCTR_ICEN,d0
- beq debugger_local_cache_flushinv_end
-
- invalidate_icache 1
-
-debugger_local_cache_flushinv_end:
- ret [],0
- .size debugger_local_cache_flushinv,.-debugger_local_cache_flushinv
+++ /dev/null
-/* Handle the cache being disabled
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/mm.h>
-
-/*
- * allow userspace to flush the instruction cache
- */
-asmlinkage long sys_cacheflush(unsigned long start, unsigned long end)
-{
- if (end < start)
- return -EINVAL;
- return 0;
-}
+++ /dev/null
-/* MN10300 CPU core caching routines, using indirect regs on cache controller
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/smp.h>
-#include <asm/page.h>
-#include <asm/cache.h>
-#include <asm/irqflags.h>
-
- .am33_2
-
-#ifndef CONFIG_SMP
- .globl mn10300_dcache_flush
- .globl mn10300_dcache_flush_page
- .globl mn10300_dcache_flush_range
- .globl mn10300_dcache_flush_range2
- .globl mn10300_dcache_flush_inv
- .globl mn10300_dcache_flush_inv_page
- .globl mn10300_dcache_flush_inv_range
- .globl mn10300_dcache_flush_inv_range2
-
-mn10300_dcache_flush = mn10300_local_dcache_flush
-mn10300_dcache_flush_page = mn10300_local_dcache_flush_page
-mn10300_dcache_flush_range = mn10300_local_dcache_flush_range
-mn10300_dcache_flush_range2 = mn10300_local_dcache_flush_range2
-mn10300_dcache_flush_inv = mn10300_local_dcache_flush_inv
-mn10300_dcache_flush_inv_page = mn10300_local_dcache_flush_inv_page
-mn10300_dcache_flush_inv_range = mn10300_local_dcache_flush_inv_range
-mn10300_dcache_flush_inv_range2 = mn10300_local_dcache_flush_inv_range2
-
-#endif /* !CONFIG_SMP */
-
-###############################################################################
-#
-# void mn10300_local_dcache_flush(void)
-# Flush the entire data cache back to RAM
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_flush
- .type mn10300_local_dcache_flush,@function
-mn10300_local_dcache_flush:
- movhu (CHCTR),d0
- btst CHCTR_DCEN,d0
- beq mn10300_local_dcache_flush_end
-
- mov DCPGCR,a0
-
- LOCAL_CLI_SAVE(d1)
-
- # wait for busy bit of area purge
- setlb
- mov (a0),d0
- btst DCPGCR_DCPGBSY,d0
- lne
-
- # set mask
- clr d0
- mov d0,(DCPGMR)
-
- # area purge
- #
- # DCPGCR = DCPGCR_DCP
- #
- mov DCPGCR_DCP,d0
- mov d0,(a0)
-
- # wait for busy bit of area purge
- setlb
- mov (a0),d0
- btst DCPGCR_DCPGBSY,d0
- lne
-
- LOCAL_IRQ_RESTORE(d1)
-
-mn10300_local_dcache_flush_end:
- ret [],0
- .size mn10300_local_dcache_flush,.-mn10300_local_dcache_flush
-
-###############################################################################
-#
-# void mn10300_local_dcache_flush_page(unsigned long start)
-# void mn10300_local_dcache_flush_range(unsigned long start, unsigned long end)
-# void mn10300_local_dcache_flush_range2(unsigned long start, unsigned long size)
-# Flush a range of addresses on a page in the dcache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_flush_page
- .globl mn10300_local_dcache_flush_range
- .globl mn10300_local_dcache_flush_range2
- .type mn10300_local_dcache_flush_page,@function
- .type mn10300_local_dcache_flush_range,@function
- .type mn10300_local_dcache_flush_range2,@function
-mn10300_local_dcache_flush_page:
- and ~(PAGE_SIZE-1),d0
- mov PAGE_SIZE,d1
-mn10300_local_dcache_flush_range2:
- add d0,d1
-mn10300_local_dcache_flush_range:
- movm [d2,d3,a2],(sp)
-
- movhu (CHCTR),d2
- btst CHCTR_DCEN,d2
- beq mn10300_local_dcache_flush_range_end
-
- # calculate alignsize
- #
- # alignsize = L1_CACHE_BYTES;
- # for (i = (end - start - 1) / L1_CACHE_BYTES ; i > 0; i >>= 1)
- # alignsize <<= 1;
- # d2 = alignsize;
- #
- mov L1_CACHE_BYTES,d2
- sub d0,d1,d3
- add -1,d3
- lsr L1_CACHE_SHIFT,d3
- beq 2f
-1:
- add d2,d2
- lsr 1,d3
- bne 1b
-2:
- mov d1,a1 # a1 = end
-
- LOCAL_CLI_SAVE(d3)
- mov DCPGCR,a0
-
- # wait for busy bit of area purge
- setlb
- mov (a0),d1
- btst DCPGCR_DCPGBSY,d1
- lne
-
- # determine the mask
- mov d2,d1
- add -1,d1
- not d1 # d1 = mask = ~(alignsize-1)
- mov d1,(DCPGMR)
-
- and d1,d0,a2 # a2 = mask & start
-
-dcpgloop:
- # area purge
- mov a2,d0
- or DCPGCR_DCP,d0
- mov d0,(a0) # DCPGCR = (mask & start) | DCPGCR_DCP
-
- # wait for busy bit of area purge
- setlb
- mov (a0),d1
- btst DCPGCR_DCPGBSY,d1
- lne
-
- # check purge of end address
- add d2,a2 # a2 += alignsize
- cmp a1,a2 # if (a2 < end) goto dcpgloop
- bns dcpgloop
-
- LOCAL_IRQ_RESTORE(d3)
-
-mn10300_local_dcache_flush_range_end:
- ret [d2,d3,a2],12
-
- .size mn10300_local_dcache_flush_page,.-mn10300_local_dcache_flush_page
- .size mn10300_local_dcache_flush_range,.-mn10300_local_dcache_flush_range
- .size mn10300_local_dcache_flush_range2,.-mn10300_local_dcache_flush_range2
-
-###############################################################################
-#
-# void mn10300_local_dcache_flush_inv(void)
-# Flush the entire data cache and invalidate all entries
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_flush_inv
- .type mn10300_local_dcache_flush_inv,@function
-mn10300_local_dcache_flush_inv:
- movhu (CHCTR),d0
- btst CHCTR_DCEN,d0
- beq mn10300_local_dcache_flush_inv_end
-
- mov DCPGCR,a0
-
- LOCAL_CLI_SAVE(d1)
-
- # wait for busy bit of area purge & invalidate
- setlb
- mov (a0),d0
- btst DCPGCR_DCPGBSY,d0
- lne
-
- # set the mask to cover everything
- clr d0
- mov d0,(DCPGMR)
-
- # area purge & invalidate
- mov DCPGCR_DCP|DCPGCR_DCI,d0
- mov d0,(a0)
-
- # wait for busy bit of area purge & invalidate
- setlb
- mov (a0),d0
- btst DCPGCR_DCPGBSY,d0
- lne
-
- LOCAL_IRQ_RESTORE(d1)
-
-mn10300_local_dcache_flush_inv_end:
- ret [],0
- .size mn10300_local_dcache_flush_inv,.-mn10300_local_dcache_flush_inv
-
-###############################################################################
-#
-# void mn10300_local_dcache_flush_inv_page(unsigned long start)
-# void mn10300_local_dcache_flush_inv_range(unsigned long start, unsigned long end)
-# void mn10300_local_dcache_flush_inv_range2(unsigned long start, unsigned long size)
-# Flush and invalidate a range of addresses on a page in the dcache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_flush_inv_page
- .globl mn10300_local_dcache_flush_inv_range
- .globl mn10300_local_dcache_flush_inv_range2
- .type mn10300_local_dcache_flush_inv_page,@function
- .type mn10300_local_dcache_flush_inv_range,@function
- .type mn10300_local_dcache_flush_inv_range2,@function
-mn10300_local_dcache_flush_inv_page:
- and ~(PAGE_SIZE-1),d0
- mov PAGE_SIZE,d1
-mn10300_local_dcache_flush_inv_range2:
- add d0,d1
-mn10300_local_dcache_flush_inv_range:
- movm [d2,d3,a2],(sp)
-
- movhu (CHCTR),d2
- btst CHCTR_DCEN,d2
- beq mn10300_local_dcache_flush_inv_range_end
-
- # calculate alignsize
- #
- # alignsize = L1_CACHE_BYTES;
- # for (i = (end - start - 1) / L1_CACHE_BYTES; i > 0; i >>= 1)
- # alignsize <<= 1;
- # d2 = alignsize
- #
- mov L1_CACHE_BYTES,d2
- sub d0,d1,d3
- add -1,d3
- lsr L1_CACHE_SHIFT,d3
- beq 2f
-1:
- add d2,d2
- lsr 1,d3
- bne 1b
-2:
- mov d1,a1 # a1 = end
-
- LOCAL_CLI_SAVE(d3)
- mov DCPGCR,a0
-
- # wait for busy bit of area purge & invalidate
- setlb
- mov (a0),d1
- btst DCPGCR_DCPGBSY,d1
- lne
-
- # set the mask
- mov d2,d1
- add -1,d1
- not d1 # d1 = mask = ~(alignsize-1)
- mov d1,(DCPGMR)
-
- and d1,d0,a2 # a2 = mask & start
-
-dcpgivloop:
- # area purge & invalidate
- mov a2,d0
- or DCPGCR_DCP|DCPGCR_DCI,d0
- mov d0,(a0) # DCPGCR = (mask & start)|DCPGCR_DCP|DCPGCR_DCI
-
- # wait for busy bit of area purge & invalidate
- setlb
- mov (a0),d1
- btst DCPGCR_DCPGBSY,d1
- lne
-
- # check purge & invalidate of end address
- add d2,a2 # a2 += alignsize
- cmp a1,a2 # if (a2 < end) goto dcpgivloop
- bns dcpgivloop
-
- LOCAL_IRQ_RESTORE(d3)
-
-mn10300_local_dcache_flush_inv_range_end:
- ret [d2,d3,a2],12
- .size mn10300_local_dcache_flush_inv_page,.-mn10300_local_dcache_flush_inv_page
- .size mn10300_local_dcache_flush_inv_range,.-mn10300_local_dcache_flush_inv_range
- .size mn10300_local_dcache_flush_inv_range2,.-mn10300_local_dcache_flush_inv_range2
+++ /dev/null
-/* MN10300 CPU core caching routines, using direct tag flushing
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/smp.h>
-#include <asm/page.h>
-#include <asm/cache.h>
-#include <asm/irqflags.h>
-
- .am33_2
-
-#ifndef CONFIG_SMP
- .globl mn10300_dcache_flush
- .globl mn10300_dcache_flush_page
- .globl mn10300_dcache_flush_range
- .globl mn10300_dcache_flush_range2
- .globl mn10300_dcache_flush_inv
- .globl mn10300_dcache_flush_inv_page
- .globl mn10300_dcache_flush_inv_range
- .globl mn10300_dcache_flush_inv_range2
-
-mn10300_dcache_flush = mn10300_local_dcache_flush
-mn10300_dcache_flush_page = mn10300_local_dcache_flush_page
-mn10300_dcache_flush_range = mn10300_local_dcache_flush_range
-mn10300_dcache_flush_range2 = mn10300_local_dcache_flush_range2
-mn10300_dcache_flush_inv = mn10300_local_dcache_flush_inv
-mn10300_dcache_flush_inv_page = mn10300_local_dcache_flush_inv_page
-mn10300_dcache_flush_inv_range = mn10300_local_dcache_flush_inv_range
-mn10300_dcache_flush_inv_range2 = mn10300_local_dcache_flush_inv_range2
-
-#endif /* !CONFIG_SMP */
-
-###############################################################################
-#
-# void mn10300_local_dcache_flush(void)
-# Flush the entire data cache back to RAM
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_flush
- .type mn10300_local_dcache_flush,@function
-mn10300_local_dcache_flush:
- movhu (CHCTR),d0
- btst CHCTR_DCEN,d0
- beq mn10300_local_dcache_flush_end
-
- # read the addresses tagged in the cache's tag RAM and attempt to flush
- # those addresses specifically
- # - we rely on the hardware to filter out invalid tag entry addresses
- mov DCACHE_TAG(0,0),a0 # dcache tag RAM access address
- mov DCACHE_PURGE(0,0),a1 # dcache purge request address
- mov L1_CACHE_NWAYS*L1_CACHE_NENTRIES,d1 # total number of entries
-
-mn10300_local_dcache_flush_loop:
- mov (a0),d0
- and L1_CACHE_TAG_MASK,d0
- or L1_CACHE_TAG_VALID,d0 # retain valid entries in the
- # cache
- mov d0,(a1) # conditional purge
-
- add L1_CACHE_BYTES,a0
- add L1_CACHE_BYTES,a1
- add -1,d1
- bne mn10300_local_dcache_flush_loop
-
-mn10300_local_dcache_flush_end:
- ret [],0
- .size mn10300_local_dcache_flush,.-mn10300_local_dcache_flush
-
-###############################################################################
-#
-# void mn10300_local_dcache_flush_page(unsigned long start)
-# void mn10300_local_dcache_flush_range(unsigned long start, unsigned long end)
-# void mn10300_local_dcache_flush_range2(unsigned long start, unsigned long size)
-# Flush a range of addresses on a page in the dcache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_flush_page
- .globl mn10300_local_dcache_flush_range
- .globl mn10300_local_dcache_flush_range2
- .type mn10300_local_dcache_flush_page,@function
- .type mn10300_local_dcache_flush_range,@function
- .type mn10300_local_dcache_flush_range2,@function
-mn10300_local_dcache_flush_page:
- and ~(PAGE_SIZE-1),d0
- mov PAGE_SIZE,d1
-mn10300_local_dcache_flush_range2:
- add d0,d1
-mn10300_local_dcache_flush_range:
- movm [d2],(sp)
-
- movhu (CHCTR),d2
- btst CHCTR_DCEN,d2
- beq mn10300_local_dcache_flush_range_end
-
- sub d0,d1,a0
- cmp MN10300_DCACHE_FLUSH_BORDER,a0
- ble 1f
-
- movm (sp),[d2]
- bra mn10300_local_dcache_flush
-1:
-
- # round start addr down
- and L1_CACHE_TAG_MASK,d0
- mov d0,a1
-
- add L1_CACHE_BYTES,d1 # round end addr up
- and L1_CACHE_TAG_MASK,d1
-
- # write a request to flush all instances of an address from the cache
- mov DCACHE_PURGE(0,0),a0
- mov a1,d0
- and L1_CACHE_TAG_ENTRY,d0
- add d0,a0 # starting dcache purge control
- # reg address
-
- sub a1,d1
- lsr L1_CACHE_SHIFT,d1 # total number of entries to
- # examine
-
- or L1_CACHE_TAG_VALID,a1 # retain valid entries in the
- # cache
-
-mn10300_local_dcache_flush_range_loop:
- mov a1,(L1_CACHE_WAYDISP*0,a0) # conditionally purge this line
- # all ways
-
- add L1_CACHE_BYTES,a0
- add L1_CACHE_BYTES,a1
- and ~L1_CACHE_WAYDISP,a0 # make sure way stay on way 0
- add -1,d1
- bne mn10300_local_dcache_flush_range_loop
-
-mn10300_local_dcache_flush_range_end:
- ret [d2],4
-
- .size mn10300_local_dcache_flush_page,.-mn10300_local_dcache_flush_page
- .size mn10300_local_dcache_flush_range,.-mn10300_local_dcache_flush_range
- .size mn10300_local_dcache_flush_range2,.-mn10300_local_dcache_flush_range2
-
-###############################################################################
-#
-# void mn10300_local_dcache_flush_inv(void)
-# Flush the entire data cache and invalidate all entries
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_flush_inv
- .type mn10300_local_dcache_flush_inv,@function
-mn10300_local_dcache_flush_inv:
- movhu (CHCTR),d0
- btst CHCTR_DCEN,d0
- beq mn10300_local_dcache_flush_inv_end
-
- mov L1_CACHE_NENTRIES,d1
- clr a1
-
-mn10300_local_dcache_flush_inv_loop:
- mov (DCACHE_PURGE_WAY0(0),a1),d0 # unconditional purge
- mov (DCACHE_PURGE_WAY1(0),a1),d0 # unconditional purge
- mov (DCACHE_PURGE_WAY2(0),a1),d0 # unconditional purge
- mov (DCACHE_PURGE_WAY3(0),a1),d0 # unconditional purge
-
- add L1_CACHE_BYTES,a1
- add -1,d1
- bne mn10300_local_dcache_flush_inv_loop
-
-mn10300_local_dcache_flush_inv_end:
- ret [],0
- .size mn10300_local_dcache_flush_inv,.-mn10300_local_dcache_flush_inv
-
-###############################################################################
-#
-# void mn10300_local_dcache_flush_inv_page(unsigned long start)
-# void mn10300_local_dcache_flush_inv_range(unsigned long start, unsigned long end)
-# void mn10300_local_dcache_flush_inv_range2(unsigned long start, unsigned long size)
-# Flush and invalidate a range of addresses on a page in the dcache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_flush_inv_page
- .globl mn10300_local_dcache_flush_inv_range
- .globl mn10300_local_dcache_flush_inv_range2
- .type mn10300_local_dcache_flush_inv_page,@function
- .type mn10300_local_dcache_flush_inv_range,@function
- .type mn10300_local_dcache_flush_inv_range2,@function
-mn10300_local_dcache_flush_inv_page:
- and ~(PAGE_SIZE-1),d0
- mov PAGE_SIZE,d1
-mn10300_local_dcache_flush_inv_range2:
- add d0,d1
-mn10300_local_dcache_flush_inv_range:
- movm [d2],(sp)
-
- movhu (CHCTR),d2
- btst CHCTR_DCEN,d2
- beq mn10300_local_dcache_flush_inv_range_end
-
- sub d0,d1,a0
- cmp MN10300_DCACHE_FLUSH_INV_BORDER,a0
- ble 1f
-
- movm (sp),[d2]
- bra mn10300_local_dcache_flush_inv
-1:
-
- and L1_CACHE_TAG_MASK,d0 # round start addr down
- mov d0,a1
-
- add L1_CACHE_BYTES,d1 # round end addr up
- and L1_CACHE_TAG_MASK,d1
-
- # write a request to flush and invalidate all instances of an address
- # from the cache
- mov DCACHE_PURGE(0,0),a0
- mov a1,d0
- and L1_CACHE_TAG_ENTRY,d0
- add d0,a0 # starting dcache purge control
- # reg address
-
- sub a1,d1
- lsr L1_CACHE_SHIFT,d1 # total number of entries to
- # examine
-
-mn10300_local_dcache_flush_inv_range_loop:
- mov a1,(L1_CACHE_WAYDISP*0,a0) # conditionally purge this line
- # in all ways
-
- add L1_CACHE_BYTES,a0
- add L1_CACHE_BYTES,a1
- and ~L1_CACHE_WAYDISP,a0 # make sure way stay on way 0
- add -1,d1
- bne mn10300_local_dcache_flush_inv_range_loop
-
-mn10300_local_dcache_flush_inv_range_end:
- ret [d2],4
- .size mn10300_local_dcache_flush_inv_page,.-mn10300_local_dcache_flush_inv_page
- .size mn10300_local_dcache_flush_inv_range,.-mn10300_local_dcache_flush_inv_range
- .size mn10300_local_dcache_flush_inv_range2,.-mn10300_local_dcache_flush_inv_range2
+++ /dev/null
-/* Flush dcache and invalidate icache when the dcache is in writeback mode
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <asm/cacheflush.h>
-#include <asm/smp.h>
-#include "cache-smp.h"
-
-/**
- * flush_icache_page - Flush a page from the dcache and invalidate the icache
- * @vma: The VMA the page is part of.
- * @page: The page to be flushed.
- *
- * Write a page back from the dcache and invalidate the icache so that we can
- * run code from it that we've just written into it
- */
-void flush_icache_page(struct vm_area_struct *vma, struct page *page)
-{
- unsigned long start = page_to_phys(page);
- unsigned long flags;
-
- flags = smp_lock_cache();
-
- mn10300_local_dcache_flush_page(start);
- mn10300_local_icache_inv_page(start);
-
- smp_cache_call(SMP_IDCACHE_INV_FLUSH_RANGE, start, start + PAGE_SIZE);
- smp_unlock_cache(flags);
-}
-EXPORT_SYMBOL(flush_icache_page);
-
-/**
- * flush_icache_page_range - Flush dcache and invalidate icache for part of a
- * single page
- * @start: The starting virtual address of the page part.
- * @end: The ending virtual address of the page part.
- *
- * Flush the dcache and invalidate the icache for part of a single page, as
- * determined by the virtual addresses given. The page must be in the paged
- * area.
- */
-static void flush_icache_page_range(unsigned long start, unsigned long end)
-{
- unsigned long addr, size, off;
- struct page *page;
- pgd_t *pgd;
- pud_t *pud;
- pmd_t *pmd;
- pte_t *ppte, pte;
-
- /* work out how much of the page to flush */
- off = start & ~PAGE_MASK;
- size = end - start;
-
- /* get the physical address the page is mapped to from the page
- * tables */
- pgd = pgd_offset(current->mm, start);
- if (!pgd || !pgd_val(*pgd))
- return;
-
- pud = pud_offset(pgd, start);
- if (!pud || !pud_val(*pud))
- return;
-
- pmd = pmd_offset(pud, start);
- if (!pmd || !pmd_val(*pmd))
- return;
-
- ppte = pte_offset_map(pmd, start);
- if (!ppte)
- return;
- pte = *ppte;
- pte_unmap(ppte);
-
- if (pte_none(pte))
- return;
-
- page = pte_page(pte);
- if (!page)
- return;
-
- addr = page_to_phys(page);
-
- /* flush the dcache and invalidate the icache coverage on that
- * region */
- mn10300_local_dcache_flush_range2(addr + off, size);
- mn10300_local_icache_inv_range2(addr + off, size);
- smp_cache_call(SMP_IDCACHE_INV_FLUSH_RANGE, start, end);
-}
-
-/**
- * flush_icache_range - Globally flush dcache and invalidate icache for region
- * @start: The starting virtual address of the region.
- * @end: The ending virtual address of the region.
- *
- * This is used by the kernel to globally flush some code it has just written
- * from the dcache back to RAM and then to globally invalidate the icache over
- * that region so that that code can be run on all CPUs in the system.
- */
-void flush_icache_range(unsigned long start, unsigned long end)
-{
- unsigned long start_page, end_page;
- unsigned long flags;
-
- flags = smp_lock_cache();
-
- if (end > 0x80000000UL) {
- /* addresses above 0xa0000000 do not go through the cache */
- if (end > 0xa0000000UL) {
- end = 0xa0000000UL;
- if (start >= end)
- goto done;
- }
-
- /* kernel addresses between 0x80000000 and 0x9fffffff do not
- * require page tables, so we just map such addresses
- * directly */
- start_page = (start >= 0x80000000UL) ? start : 0x80000000UL;
- mn10300_local_dcache_flush_range(start_page, end);
- mn10300_local_icache_inv_range(start_page, end);
- smp_cache_call(SMP_IDCACHE_INV_FLUSH_RANGE, start_page, end);
- if (start_page == start)
- goto done;
- end = start_page;
- }
-
- start_page = start & PAGE_MASK;
- end_page = (end - 1) & PAGE_MASK;
-
- if (start_page == end_page) {
- /* the first and last bytes are on the same page */
- flush_icache_page_range(start, end);
- } else if (start_page + 1 == end_page) {
- /* split over two virtually contiguous pages */
- flush_icache_page_range(start, end_page);
- flush_icache_page_range(end_page, end);
- } else {
- /* more than 2 pages; just flush the entire cache */
- mn10300_dcache_flush();
- mn10300_icache_inv();
- smp_cache_call(SMP_IDCACHE_INV_FLUSH, 0, 0);
- }
-
-done:
- smp_unlock_cache(flags);
-}
-EXPORT_SYMBOL(flush_icache_range);
+++ /dev/null
-/* MN10300 CPU cache invalidation routines, using automatic purge registers
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/smp.h>
-#include <asm/page.h>
-#include <asm/cache.h>
-#include <asm/irqflags.h>
-#include <asm/cacheflush.h>
-#include "cache.inc"
-
-#define mn10300_local_dcache_inv_range_intr_interval \
- +((1 << MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL) - 1)
-
-#if mn10300_local_dcache_inv_range_intr_interval > 0xff
-#error MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL must be 8 or less
-#endif
-
- .am33_2
-
-#ifndef CONFIG_SMP
- .globl mn10300_icache_inv
- .globl mn10300_icache_inv_page
- .globl mn10300_icache_inv_range
- .globl mn10300_icache_inv_range2
- .globl mn10300_dcache_inv
- .globl mn10300_dcache_inv_page
- .globl mn10300_dcache_inv_range
- .globl mn10300_dcache_inv_range2
-
-mn10300_icache_inv = mn10300_local_icache_inv
-mn10300_icache_inv_page = mn10300_local_icache_inv_page
-mn10300_icache_inv_range = mn10300_local_icache_inv_range
-mn10300_icache_inv_range2 = mn10300_local_icache_inv_range2
-mn10300_dcache_inv = mn10300_local_dcache_inv
-mn10300_dcache_inv_page = mn10300_local_dcache_inv_page
-mn10300_dcache_inv_range = mn10300_local_dcache_inv_range
-mn10300_dcache_inv_range2 = mn10300_local_dcache_inv_range2
-
-#endif /* !CONFIG_SMP */
-
-###############################################################################
-#
-# void mn10300_local_icache_inv(void)
-# Invalidate the entire icache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_icache_inv
- .type mn10300_local_icache_inv,@function
-mn10300_local_icache_inv:
- mov CHCTR,a0
-
- movhu (a0),d0
- btst CHCTR_ICEN,d0
- beq mn10300_local_icache_inv_end
-
- invalidate_icache 1
-
-mn10300_local_icache_inv_end:
- ret [],0
- .size mn10300_local_icache_inv,.-mn10300_local_icache_inv
-
-###############################################################################
-#
-# void mn10300_local_dcache_inv(void)
-# Invalidate the entire dcache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_inv
- .type mn10300_local_dcache_inv,@function
-mn10300_local_dcache_inv:
- mov CHCTR,a0
-
- movhu (a0),d0
- btst CHCTR_DCEN,d0
- beq mn10300_local_dcache_inv_end
-
- invalidate_dcache 1
-
-mn10300_local_dcache_inv_end:
- ret [],0
- .size mn10300_local_dcache_inv,.-mn10300_local_dcache_inv
-
-###############################################################################
-#
-# void mn10300_local_dcache_inv_range(unsigned long start, unsigned long end)
-# void mn10300_local_dcache_inv_range2(unsigned long start, unsigned long size)
-# void mn10300_local_dcache_inv_page(unsigned long start)
-# Invalidate a range of addresses on a page in the dcache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_inv_page
- .globl mn10300_local_dcache_inv_range
- .globl mn10300_local_dcache_inv_range2
- .type mn10300_local_dcache_inv_page,@function
- .type mn10300_local_dcache_inv_range,@function
- .type mn10300_local_dcache_inv_range2,@function
-mn10300_local_dcache_inv_page:
- and ~(PAGE_SIZE-1),d0
- mov PAGE_SIZE,d1
-mn10300_local_dcache_inv_range2:
- add d0,d1
-mn10300_local_dcache_inv_range:
- # If we are in writeback mode we check the start and end alignments,
- # and if they're not cacheline-aligned, we must flush any bits outside
- # the range that share cachelines with stuff inside the range
-#ifdef CONFIG_MN10300_CACHE_WBACK
- btst ~L1_CACHE_TAG_MASK,d0
- bne 1f
- btst ~L1_CACHE_TAG_MASK,d1
- beq 2f
-1:
- bra mn10300_local_dcache_flush_inv_range
-2:
-#endif /* CONFIG_MN10300_CACHE_WBACK */
-
- movm [d2,d3,a2],(sp)
-
- mov CHCTR,a0
- movhu (a0),d2
- btst CHCTR_DCEN,d2
- beq mn10300_local_dcache_inv_range_end
-
- # round the addresses out to be full cachelines, unless we're in
- # writeback mode, in which case we would be in flush and invalidate by
- # now
-#ifndef CONFIG_MN10300_CACHE_WBACK
- and L1_CACHE_TAG_MASK,d0 # round start addr down
-
- mov L1_CACHE_BYTES-1,d2
- add d2,d1
- and L1_CACHE_TAG_MASK,d1 # round end addr up
-#endif /* !CONFIG_MN10300_CACHE_WBACK */
-
- sub d0,d1,d2 # calculate the total size
- mov d0,a2 # A2 = start address
- mov d1,a1 # A1 = end address
-
- LOCAL_CLI_SAVE(d3)
-
- mov DCPGCR,a0 # make sure the purger isn't busy
- setlb
- mov (a0),d0
- btst DCPGCR_DCPGBSY,d0
- lne
-
- # skip initial address alignment calculation if address is zero
- mov d2,d1
- cmp 0,a2
- beq 1f
-
-dcivloop:
- /* calculate alignsize
- *
- * alignsize = L1_CACHE_BYTES;
- * while (! start & alignsize) {
- * alignsize <<=1;
- * }
- * d1 = alignsize;
- */
- mov L1_CACHE_BYTES,d1
- lsr 1,d1
- setlb
- add d1,d1
- mov d1,d0
- and a2,d0
- leq
-
-1:
- /* calculate invsize
- *
- * if (totalsize > alignsize) {
- * invsize = alignsize;
- * } else {
- * invsize = totalsize;
- * tmp = 0x80000000;
- * while (! invsize & tmp) {
- * tmp >>= 1;
- * }
- * invsize = tmp;
- * }
- * d1 = invsize
- */
- cmp d2,d1
- bns 2f
- mov d2,d1
-
- mov 0x80000000,d0 # start from 31bit=1
- setlb
- lsr 1,d0
- mov d0,e0
- and d1,e0
- leq
- mov d0,d1
-
-2:
- /* set mask
- *
- * mask = ~(invsize-1);
- * DCPGMR = mask;
- */
- mov d1,d0
- add -1,d0
- not d0
- mov d0,(DCPGMR)
-
- # invalidate area
- mov a2,d0
- or DCPGCR_DCI,d0
- mov d0,(a0) # DCPGCR = (mask & start) | DCPGCR_DCI
-
- setlb # wait for the purge to complete
- mov (a0),d0
- btst DCPGCR_DCPGBSY,d0
- lne
-
- sub d1,d2 # decrease size remaining
- add d1,a2 # increase next start address
-
- /* check invalidating of end address
- *
- * a2 = a2 + invsize
- * if (a2 < end) {
- * goto dcivloop;
- * } */
- cmp a1,a2
- bns dcivloop
-
- LOCAL_IRQ_RESTORE(d3)
-
-mn10300_local_dcache_inv_range_end:
- ret [d2,d3,a2],12
- .size mn10300_local_dcache_inv_page,.-mn10300_local_dcache_inv_page
- .size mn10300_local_dcache_inv_range,.-mn10300_local_dcache_inv_range
- .size mn10300_local_dcache_inv_range2,.-mn10300_local_dcache_inv_range2
-
-###############################################################################
-#
-# void mn10300_local_icache_inv_page(unsigned long start)
-# void mn10300_local_icache_inv_range2(unsigned long start, unsigned long size)
-# void mn10300_local_icache_inv_range(unsigned long start, unsigned long end)
-# Invalidate a range of addresses on a page in the icache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_icache_inv_page
- .globl mn10300_local_icache_inv_range
- .globl mn10300_local_icache_inv_range2
- .type mn10300_local_icache_inv_page,@function
- .type mn10300_local_icache_inv_range,@function
- .type mn10300_local_icache_inv_range2,@function
-mn10300_local_icache_inv_page:
- and ~(PAGE_SIZE-1),d0
- mov PAGE_SIZE,d1
-mn10300_local_icache_inv_range2:
- add d0,d1
-mn10300_local_icache_inv_range:
- movm [d2,d3,a2],(sp)
-
- mov CHCTR,a0
- movhu (a0),d2
- btst CHCTR_ICEN,d2
- beq mn10300_local_icache_inv_range_reg_end
-
- /* calculate alignsize
- *
- * alignsize = L1_CACHE_BYTES;
- * for (i = (end - start - 1) / L1_CACHE_BYTES ; i > 0; i >>= 1) {
- * alignsize <<= 1;
- * }
- * d2 = alignsize;
- */
- mov L1_CACHE_BYTES,d2
- sub d0,d1,d3
- add -1,d3
- lsr L1_CACHE_SHIFT,d3
- beq 2f
-1:
- add d2,d2
- lsr 1,d3
- bne 1b
-2:
-
- /* a1 = end */
- mov d1,a1
-
- LOCAL_CLI_SAVE(d3)
-
- mov ICIVCR,a0
- /* wait for busy bit of area invalidation */
- setlb
- mov (a0),d1
- btst ICIVCR_ICIVBSY,d1
- lne
-
- /* set mask
- *
- * mask = ~(alignsize-1);
- * ICIVMR = mask;
- */
- mov d2,d1
- add -1,d1
- not d1
- mov d1,(ICIVMR)
- /* a2 = mask & start */
- and d1,d0,a2
-
-icivloop:
- /* area invalidate
- *
- * ICIVCR = (mask & start) | ICIVCR_ICI
- */
- mov a2,d0
- or ICIVCR_ICI,d0
- mov d0,(a0)
-
- /* wait for busy bit of area invalidation */
- setlb
- mov (a0),d1
- btst ICIVCR_ICIVBSY,d1
- lne
-
- /* check invalidating of end address
- *
- * a2 = a2 + alignsize
- * if (a2 < end) {
- * goto icivloop;
- * } */
- add d2,a2
- cmp a1,a2
- bns icivloop
-
- LOCAL_IRQ_RESTORE(d3)
-
-mn10300_local_icache_inv_range_reg_end:
- ret [d2,d3,a2],12
- .size mn10300_local_icache_inv_page,.-mn10300_local_icache_inv_page
- .size mn10300_local_icache_inv_range,.-mn10300_local_icache_inv_range
- .size mn10300_local_icache_inv_range2,.-mn10300_local_icache_inv_range2
+++ /dev/null
-/* MN10300 CPU core caching routines
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/smp.h>
-#include <asm/page.h>
-#include <asm/cache.h>
-#include <asm/irqflags.h>
-#include <asm/cacheflush.h>
-#include "cache.inc"
-
-#define mn10300_local_dcache_inv_range_intr_interval \
- +((1 << MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL) - 1)
-
-#if mn10300_local_dcache_inv_range_intr_interval > 0xff
-#error MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL must be 8 or less
-#endif
-
- .am33_2
-
- .globl mn10300_local_icache_inv_page
- .globl mn10300_local_icache_inv_range
- .globl mn10300_local_icache_inv_range2
-
-mn10300_local_icache_inv_page = mn10300_local_icache_inv
-mn10300_local_icache_inv_range = mn10300_local_icache_inv
-mn10300_local_icache_inv_range2 = mn10300_local_icache_inv
-
-#ifndef CONFIG_SMP
- .globl mn10300_icache_inv
- .globl mn10300_icache_inv_page
- .globl mn10300_icache_inv_range
- .globl mn10300_icache_inv_range2
- .globl mn10300_dcache_inv
- .globl mn10300_dcache_inv_page
- .globl mn10300_dcache_inv_range
- .globl mn10300_dcache_inv_range2
-
-mn10300_icache_inv = mn10300_local_icache_inv
-mn10300_icache_inv_page = mn10300_local_icache_inv_page
-mn10300_icache_inv_range = mn10300_local_icache_inv_range
-mn10300_icache_inv_range2 = mn10300_local_icache_inv_range2
-mn10300_dcache_inv = mn10300_local_dcache_inv
-mn10300_dcache_inv_page = mn10300_local_dcache_inv_page
-mn10300_dcache_inv_range = mn10300_local_dcache_inv_range
-mn10300_dcache_inv_range2 = mn10300_local_dcache_inv_range2
-
-#endif /* !CONFIG_SMP */
-
-###############################################################################
-#
-# void mn10300_local_icache_inv(void)
-# Invalidate the entire icache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_icache_inv
- .type mn10300_local_icache_inv,@function
-mn10300_local_icache_inv:
- mov CHCTR,a0
-
- movhu (a0),d0
- btst CHCTR_ICEN,d0
- beq mn10300_local_icache_inv_end
-
- invalidate_icache 1
-
-mn10300_local_icache_inv_end:
- ret [],0
- .size mn10300_local_icache_inv,.-mn10300_local_icache_inv
-
-###############################################################################
-#
-# void mn10300_local_dcache_inv(void)
-# Invalidate the entire dcache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_inv
- .type mn10300_local_dcache_inv,@function
-mn10300_local_dcache_inv:
- mov CHCTR,a0
-
- movhu (a0),d0
- btst CHCTR_DCEN,d0
- beq mn10300_local_dcache_inv_end
-
- invalidate_dcache 1
-
-mn10300_local_dcache_inv_end:
- ret [],0
- .size mn10300_local_dcache_inv,.-mn10300_local_dcache_inv
-
-###############################################################################
-#
-# void mn10300_local_dcache_inv_range(unsigned long start, unsigned long end)
-# void mn10300_local_dcache_inv_range2(unsigned long start, unsigned long size)
-# void mn10300_local_dcache_inv_page(unsigned long start)
-# Invalidate a range of addresses on a page in the dcache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_inv_page
- .globl mn10300_local_dcache_inv_range
- .globl mn10300_local_dcache_inv_range2
- .type mn10300_local_dcache_inv_page,@function
- .type mn10300_local_dcache_inv_range,@function
- .type mn10300_local_dcache_inv_range2,@function
-mn10300_local_dcache_inv_page:
- and ~(PAGE_SIZE-1),d0
- mov PAGE_SIZE,d1
-mn10300_local_dcache_inv_range2:
- add d0,d1
-mn10300_local_dcache_inv_range:
- # If we are in writeback mode we check the start and end alignments,
- # and if they're not cacheline-aligned, we must flush any bits outside
- # the range that share cachelines with stuff inside the range
-#ifdef CONFIG_MN10300_CACHE_WBACK
- btst ~L1_CACHE_TAG_MASK,d0
- bne 1f
- btst ~L1_CACHE_TAG_MASK,d1
- beq 2f
-1:
- bra mn10300_local_dcache_flush_inv_range
-2:
-#endif /* CONFIG_MN10300_CACHE_WBACK */
-
- movm [d2,d3,a2],(sp)
-
- mov CHCTR,a2
- movhu (a2),d2
- btst CHCTR_DCEN,d2
- beq mn10300_local_dcache_inv_range_end
-
-#ifndef CONFIG_MN10300_CACHE_WBACK
- and L1_CACHE_TAG_MASK,d0 # round start addr down
-
- add L1_CACHE_BYTES,d1 # round end addr up
- and L1_CACHE_TAG_MASK,d1
-#endif /* !CONFIG_MN10300_CACHE_WBACK */
- mov d0,a1
-
- clr d2 # we're going to clear tag RAM
- # entries
-
- # read the tags from the tag RAM, and if they indicate a valid dirty
- # cache line then invalidate that line
- mov DCACHE_TAG(0,0),a0
- mov a1,d0
- and L1_CACHE_TAG_ENTRY,d0
- add d0,a0 # starting dcache tag RAM
- # access address
-
- sub a1,d1
- lsr L1_CACHE_SHIFT,d1 # total number of entries to
- # examine
-
- and ~(L1_CACHE_DISPARITY-1),a1 # determine comparator base
-
-mn10300_local_dcache_inv_range_outer_loop:
- LOCAL_CLI_SAVE(d3)
-
- # disable the dcache
- movhu (a2),d0
- and ~CHCTR_DCEN,d0
- movhu d0,(a2)
-
- # and wait for it to calm down
- setlb
- movhu (a2),d0
- btst CHCTR_DCBUSY,d0
- lne
-
-mn10300_local_dcache_inv_range_loop:
-
- # process the way 0 slot
- mov (L1_CACHE_WAYDISP*0,a0),d0 # read the tag in the way 0 slot
- btst L1_CACHE_TAG_VALID,d0
- beq mn10300_local_dcache_inv_range_skip_0 # jump if this cacheline
- # is not valid
-
- xor a1,d0
- lsr 12,d0
- bne mn10300_local_dcache_inv_range_skip_0 # jump if not this cacheline
-
- mov d2,(L1_CACHE_WAYDISP*0,a0) # kill the tag
-
-mn10300_local_dcache_inv_range_skip_0:
-
- # process the way 1 slot
- mov (L1_CACHE_WAYDISP*1,a0),d0 # read the tag in the way 1 slot
- btst L1_CACHE_TAG_VALID,d0
- beq mn10300_local_dcache_inv_range_skip_1 # jump if this cacheline
- # is not valid
-
- xor a1,d0
- lsr 12,d0
- bne mn10300_local_dcache_inv_range_skip_1 # jump if not this cacheline
-
- mov d2,(L1_CACHE_WAYDISP*1,a0) # kill the tag
-
-mn10300_local_dcache_inv_range_skip_1:
-
- # process the way 2 slot
- mov (L1_CACHE_WAYDISP*2,a0),d0 # read the tag in the way 2 slot
- btst L1_CACHE_TAG_VALID,d0
- beq mn10300_local_dcache_inv_range_skip_2 # jump if this cacheline
- # is not valid
-
- xor a1,d0
- lsr 12,d0
- bne mn10300_local_dcache_inv_range_skip_2 # jump if not this cacheline
-
- mov d2,(L1_CACHE_WAYDISP*2,a0) # kill the tag
-
-mn10300_local_dcache_inv_range_skip_2:
-
- # process the way 3 slot
- mov (L1_CACHE_WAYDISP*3,a0),d0 # read the tag in the way 3 slot
- btst L1_CACHE_TAG_VALID,d0
- beq mn10300_local_dcache_inv_range_skip_3 # jump if this cacheline
- # is not valid
-
- xor a1,d0
- lsr 12,d0
- bne mn10300_local_dcache_inv_range_skip_3 # jump if not this cacheline
-
- mov d2,(L1_CACHE_WAYDISP*3,a0) # kill the tag
-
-mn10300_local_dcache_inv_range_skip_3:
-
- # approx every N steps we re-enable the cache and see if there are any
- # interrupts to be processed
- # we also break out if we've reached the end of the loop
- # (the bottom nibble of the count is zero in both cases)
- add L1_CACHE_BYTES,a0
- add L1_CACHE_BYTES,a1
- and ~L1_CACHE_WAYDISP,a0
- add -1,d1
- btst mn10300_local_dcache_inv_range_intr_interval,d1
- bne mn10300_local_dcache_inv_range_loop
-
- # wait for the cache to finish what it's doing
- setlb
- movhu (a2),d0
- btst CHCTR_DCBUSY,d0
- lne
-
- # and reenable it
- or CHCTR_DCEN,d0
- movhu d0,(a2)
- movhu (a2),d0
-
- # re-enable interrupts
- # - we don't bother with delay NOPs as we'll have enough instructions
- # before we disable interrupts again to give the interrupts a chance
- # to happen
- LOCAL_IRQ_RESTORE(d3)
-
- # go around again if the counter hasn't yet reached zero
- add 0,d1
- bne mn10300_local_dcache_inv_range_outer_loop
-
-mn10300_local_dcache_inv_range_end:
- ret [d2,d3,a2],12
- .size mn10300_local_dcache_inv_page,.-mn10300_local_dcache_inv_page
- .size mn10300_local_dcache_inv_range,.-mn10300_local_dcache_inv_range
- .size mn10300_local_dcache_inv_range2,.-mn10300_local_dcache_inv_range2
+++ /dev/null
-/* Invalidate icache when dcache doesn't need invalidation as it's in
- * write-through mode
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <asm/cacheflush.h>
-#include <asm/smp.h>
-#include "cache-smp.h"
-
-/**
- * flush_icache_page_range - Flush dcache and invalidate icache for part of a
- * single page
- * @start: The starting virtual address of the page part.
- * @end: The ending virtual address of the page part.
- *
- * Invalidate the icache for part of a single page, as determined by the
- * virtual addresses given. The page must be in the paged area. The dcache is
- * not flushed as the cache must be in write-through mode to get here.
- */
-static void flush_icache_page_range(unsigned long start, unsigned long end)
-{
- unsigned long addr, size, off;
- struct page *page;
- pgd_t *pgd;
- pud_t *pud;
- pmd_t *pmd;
- pte_t *ppte, pte;
-
- /* work out how much of the page to flush */
- off = start & ~PAGE_MASK;
- size = end - start;
-
- /* get the physical address the page is mapped to from the page
- * tables */
- pgd = pgd_offset(current->mm, start);
- if (!pgd || !pgd_val(*pgd))
- return;
-
- pud = pud_offset(pgd, start);
- if (!pud || !pud_val(*pud))
- return;
-
- pmd = pmd_offset(pud, start);
- if (!pmd || !pmd_val(*pmd))
- return;
-
- ppte = pte_offset_map(pmd, start);
- if (!ppte)
- return;
- pte = *ppte;
- pte_unmap(ppte);
-
- if (pte_none(pte))
- return;
-
- page = pte_page(pte);
- if (!page)
- return;
-
- addr = page_to_phys(page);
-
- /* invalidate the icache coverage on that region */
- mn10300_local_icache_inv_range2(addr + off, size);
- smp_cache_call(SMP_ICACHE_INV_RANGE, start, end);
-}
-
-/**
- * flush_icache_range - Globally flush dcache and invalidate icache for region
- * @start: The starting virtual address of the region.
- * @end: The ending virtual address of the region.
- *
- * This is used by the kernel to globally flush some code it has just written
- * from the dcache back to RAM and then to globally invalidate the icache over
- * that region so that that code can be run on all CPUs in the system.
- */
-void flush_icache_range(unsigned long start, unsigned long end)
-{
- unsigned long start_page, end_page;
- unsigned long flags;
-
- flags = smp_lock_cache();
-
- if (end > 0x80000000UL) {
- /* addresses above 0xa0000000 do not go through the cache */
- if (end > 0xa0000000UL) {
- end = 0xa0000000UL;
- if (start >= end)
- goto done;
- }
-
- /* kernel addresses between 0x80000000 and 0x9fffffff do not
- * require page tables, so we just map such addresses
- * directly */
- start_page = (start >= 0x80000000UL) ? start : 0x80000000UL;
- mn10300_icache_inv_range(start_page, end);
- smp_cache_call(SMP_ICACHE_INV_RANGE, start, end);
- if (start_page == start)
- goto done;
- end = start_page;
- }
-
- start_page = start & PAGE_MASK;
- end_page = (end - 1) & PAGE_MASK;
-
- if (start_page == end_page) {
- /* the first and last bytes are on the same page */
- flush_icache_page_range(start, end);
- } else if (start_page + 1 == end_page) {
- /* split over two virtually contiguous pages */
- flush_icache_page_range(start, end_page);
- flush_icache_page_range(end_page, end);
- } else {
- /* more than 2 pages; just flush the entire cache */
- mn10300_local_icache_inv();
- smp_cache_call(SMP_ICACHE_INV, 0, 0);
- }
-
-done:
- smp_unlock_cache(flags);
-}
-EXPORT_SYMBOL(flush_icache_range);
+++ /dev/null
-/* Functions for global dcache flush when writeback caching in SMP
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/mm.h>
-#include <asm/cacheflush.h>
-#include "cache-smp.h"
-
-/**
- * mn10300_dcache_flush - Globally flush data cache
- *
- * Flush the data cache on all CPUs.
- */
-void mn10300_dcache_flush(void)
-{
- unsigned long flags;
-
- flags = smp_lock_cache();
- mn10300_local_dcache_flush();
- smp_cache_call(SMP_DCACHE_FLUSH, 0, 0);
- smp_unlock_cache(flags);
-}
-
-/**
- * mn10300_dcache_flush_page - Globally flush a page of data cache
- * @start: The address of the page of memory to be flushed.
- *
- * Flush a range of addresses in the data cache on all CPUs covering
- * the page that includes the given address.
- */
-void mn10300_dcache_flush_page(unsigned long start)
-{
- unsigned long flags;
-
- start &= ~(PAGE_SIZE-1);
-
- flags = smp_lock_cache();
- mn10300_local_dcache_flush_page(start);
- smp_cache_call(SMP_DCACHE_FLUSH_RANGE, start, start + PAGE_SIZE);
- smp_unlock_cache(flags);
-}
-
-/**
- * mn10300_dcache_flush_range - Globally flush range of data cache
- * @start: The start address of the region to be flushed.
- * @end: The end address of the region to be flushed.
- *
- * Flush a range of addresses in the data cache on all CPUs, between start and
- * end-1 inclusive.
- */
-void mn10300_dcache_flush_range(unsigned long start, unsigned long end)
-{
- unsigned long flags;
-
- flags = smp_lock_cache();
- mn10300_local_dcache_flush_range(start, end);
- smp_cache_call(SMP_DCACHE_FLUSH_RANGE, start, end);
- smp_unlock_cache(flags);
-}
-
-/**
- * mn10300_dcache_flush_range2 - Globally flush range of data cache
- * @start: The start address of the region to be flushed.
- * @size: The size of the region to be flushed.
- *
- * Flush a range of addresses in the data cache on all CPUs, between start and
- * start+size-1 inclusive.
- */
-void mn10300_dcache_flush_range2(unsigned long start, unsigned long size)
-{
- unsigned long flags;
-
- flags = smp_lock_cache();
- mn10300_local_dcache_flush_range2(start, size);
- smp_cache_call(SMP_DCACHE_FLUSH_RANGE, start, start + size);
- smp_unlock_cache(flags);
-}
-
-/**
- * mn10300_dcache_flush_inv - Globally flush and invalidate data cache
- *
- * Flush and invalidate the data cache on all CPUs.
- */
-void mn10300_dcache_flush_inv(void)
-{
- unsigned long flags;
-
- flags = smp_lock_cache();
- mn10300_local_dcache_flush_inv();
- smp_cache_call(SMP_DCACHE_FLUSH_INV, 0, 0);
- smp_unlock_cache(flags);
-}
-
-/**
- * mn10300_dcache_flush_inv_page - Globally flush and invalidate a page of data
- * cache
- * @start: The address of the page of memory to be flushed and invalidated.
- *
- * Flush and invalidate a range of addresses in the data cache on all CPUs
- * covering the page that includes the given address.
- */
-void mn10300_dcache_flush_inv_page(unsigned long start)
-{
- unsigned long flags;
-
- start &= ~(PAGE_SIZE-1);
-
- flags = smp_lock_cache();
- mn10300_local_dcache_flush_inv_page(start);
- smp_cache_call(SMP_DCACHE_FLUSH_INV_RANGE, start, start + PAGE_SIZE);
- smp_unlock_cache(flags);
-}
-
-/**
- * mn10300_dcache_flush_inv_range - Globally flush and invalidate range of data
- * cache
- * @start: The start address of the region to be flushed and invalidated.
- * @end: The end address of the region to be flushed and invalidated.
- *
- * Flush and invalidate a range of addresses in the data cache on all CPUs,
- * between start and end-1 inclusive.
- */
-void mn10300_dcache_flush_inv_range(unsigned long start, unsigned long end)
-{
- unsigned long flags;
-
- flags = smp_lock_cache();
- mn10300_local_dcache_flush_inv_range(start, end);
- smp_cache_call(SMP_DCACHE_FLUSH_INV_RANGE, start, end);
- smp_unlock_cache(flags);
-}
-
-/**
- * mn10300_dcache_flush_inv_range2 - Globally flush and invalidate range of data
- * cache
- * @start: The start address of the region to be flushed and invalidated.
- * @size: The size of the region to be flushed and invalidated.
- *
- * Flush and invalidate a range of addresses in the data cache on all CPUs,
- * between start and start+size-1 inclusive.
- */
-void mn10300_dcache_flush_inv_range2(unsigned long start, unsigned long size)
-{
- unsigned long flags;
-
- flags = smp_lock_cache();
- mn10300_local_dcache_flush_inv_range2(start, size);
- smp_cache_call(SMP_DCACHE_FLUSH_INV_RANGE, start, start + size);
- smp_unlock_cache(flags);
-}
+++ /dev/null
-/* Functions for global i/dcache invalidation when caching in SMP
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/mm.h>
-#include <asm/cacheflush.h>
-#include "cache-smp.h"
-
-/**
- * mn10300_icache_inv - Globally invalidate instruction cache
- *
- * Invalidate the instruction cache on all CPUs.
- */
-void mn10300_icache_inv(void)
-{
- unsigned long flags;
-
- flags = smp_lock_cache();
- mn10300_local_icache_inv();
- smp_cache_call(SMP_ICACHE_INV, 0, 0);
- smp_unlock_cache(flags);
-}
-
-/**
- * mn10300_icache_inv_page - Globally invalidate a page of instruction cache
- * @start: The address of the page of memory to be invalidated.
- *
- * Invalidate a range of addresses in the instruction cache on all CPUs
- * covering the page that includes the given address.
- */
-void mn10300_icache_inv_page(unsigned long start)
-{
- unsigned long flags;
-
- start &= ~(PAGE_SIZE-1);
-
- flags = smp_lock_cache();
- mn10300_local_icache_inv_page(start);
- smp_cache_call(SMP_ICACHE_INV_RANGE, start, start + PAGE_SIZE);
- smp_unlock_cache(flags);
-}
-
-/**
- * mn10300_icache_inv_range - Globally invalidate range of instruction cache
- * @start: The start address of the region to be invalidated.
- * @end: The end address of the region to be invalidated.
- *
- * Invalidate a range of addresses in the instruction cache on all CPUs,
- * between start and end-1 inclusive.
- */
-void mn10300_icache_inv_range(unsigned long start, unsigned long end)
-{
- unsigned long flags;
-
- flags = smp_lock_cache();
- mn10300_local_icache_inv_range(start, end);
- smp_cache_call(SMP_ICACHE_INV_RANGE, start, end);
- smp_unlock_cache(flags);
-}
-
-/**
- * mn10300_icache_inv_range2 - Globally invalidate range of instruction cache
- * @start: The start address of the region to be invalidated.
- * @size: The size of the region to be invalidated.
- *
- * Invalidate a range of addresses in the instruction cache on all CPUs,
- * between start and start+size-1 inclusive.
- */
-void mn10300_icache_inv_range2(unsigned long start, unsigned long size)
-{
- unsigned long flags;
-
- flags = smp_lock_cache();
- mn10300_local_icache_inv_range2(start, size);
- smp_cache_call(SMP_ICACHE_INV_RANGE, start, start + size);
- smp_unlock_cache(flags);
-}
-
-/**
- * mn10300_dcache_inv - Globally invalidate data cache
- *
- * Invalidate the data cache on all CPUs.
- */
-void mn10300_dcache_inv(void)
-{
- unsigned long flags;
-
- flags = smp_lock_cache();
- mn10300_local_dcache_inv();
- smp_cache_call(SMP_DCACHE_INV, 0, 0);
- smp_unlock_cache(flags);
-}
-
-/**
- * mn10300_dcache_inv_page - Globally invalidate a page of data cache
- * @start: The address of the page of memory to be invalidated.
- *
- * Invalidate a range of addresses in the data cache on all CPUs covering the
- * page that includes the given address.
- */
-void mn10300_dcache_inv_page(unsigned long start)
-{
- unsigned long flags;
-
- start &= ~(PAGE_SIZE-1);
-
- flags = smp_lock_cache();
- mn10300_local_dcache_inv_page(start);
- smp_cache_call(SMP_DCACHE_INV_RANGE, start, start + PAGE_SIZE);
- smp_unlock_cache(flags);
-}
-
-/**
- * mn10300_dcache_inv_range - Globally invalidate range of data cache
- * @start: The start address of the region to be invalidated.
- * @end: The end address of the region to be invalidated.
- *
- * Invalidate a range of addresses in the data cache on all CPUs, between start
- * and end-1 inclusive.
- */
-void mn10300_dcache_inv_range(unsigned long start, unsigned long end)
-{
- unsigned long flags;
-
- flags = smp_lock_cache();
- mn10300_local_dcache_inv_range(start, end);
- smp_cache_call(SMP_DCACHE_INV_RANGE, start, end);
- smp_unlock_cache(flags);
-}
-
-/**
- * mn10300_dcache_inv_range2 - Globally invalidate range of data cache
- * @start: The start address of the region to be invalidated.
- * @size: The size of the region to be invalidated.
- *
- * Invalidate a range of addresses in the data cache on all CPUs, between start
- * and start+size-1 inclusive.
- */
-void mn10300_dcache_inv_range2(unsigned long start, unsigned long size)
-{
- unsigned long flags;
-
- flags = smp_lock_cache();
- mn10300_local_dcache_inv_range2(start, size);
- smp_cache_call(SMP_DCACHE_INV_RANGE, start, start + size);
- smp_unlock_cache(flags);
-}
+++ /dev/null
-/* SMP global caching code
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/threads.h>
-#include <linux/interrupt.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/processor.h>
-#include <asm/cacheflush.h>
-#include <asm/io.h>
-#include <linux/uaccess.h>
-#include <asm/smp.h>
-#include "cache-smp.h"
-
-DEFINE_SPINLOCK(smp_cache_lock);
-static unsigned long smp_cache_mask;
-static unsigned long smp_cache_start;
-static unsigned long smp_cache_end;
-static cpumask_t smp_cache_ipi_map; /* Bitmask of cache IPI done CPUs */
-
-/**
- * smp_cache_interrupt - Handle IPI request to flush caches.
- *
- * Handle a request delivered by IPI to flush the current CPU's
- * caches. The parameters are stored in smp_cache_*.
- */
-void smp_cache_interrupt(void)
-{
- unsigned long opr_mask = smp_cache_mask;
-
- switch ((enum smp_dcache_ops)(opr_mask & SMP_DCACHE_OP_MASK)) {
- case SMP_DCACHE_NOP:
- break;
- case SMP_DCACHE_INV:
- mn10300_local_dcache_inv();
- break;
- case SMP_DCACHE_INV_RANGE:
- mn10300_local_dcache_inv_range(smp_cache_start, smp_cache_end);
- break;
- case SMP_DCACHE_FLUSH:
- mn10300_local_dcache_flush();
- break;
- case SMP_DCACHE_FLUSH_RANGE:
- mn10300_local_dcache_flush_range(smp_cache_start,
- smp_cache_end);
- break;
- case SMP_DCACHE_FLUSH_INV:
- mn10300_local_dcache_flush_inv();
- break;
- case SMP_DCACHE_FLUSH_INV_RANGE:
- mn10300_local_dcache_flush_inv_range(smp_cache_start,
- smp_cache_end);
- break;
- }
-
- switch ((enum smp_icache_ops)(opr_mask & SMP_ICACHE_OP_MASK)) {
- case SMP_ICACHE_NOP:
- break;
- case SMP_ICACHE_INV:
- mn10300_local_icache_inv();
- break;
- case SMP_ICACHE_INV_RANGE:
- mn10300_local_icache_inv_range(smp_cache_start, smp_cache_end);
- break;
- }
-
- cpumask_clear_cpu(smp_processor_id(), &smp_cache_ipi_map);
-}
-
-/**
- * smp_cache_call - Issue an IPI to request the other CPUs flush caches
- * @opr_mask: Cache operation flags
- * @start: Start address of request
- * @end: End address of request
- *
- * Send cache flush IPI to other CPUs. This invokes smp_cache_interrupt()
- * above on those other CPUs and then waits for them to finish.
- *
- * The caller must hold smp_cache_lock.
- */
-void smp_cache_call(unsigned long opr_mask,
- unsigned long start, unsigned long end)
-{
- smp_cache_mask = opr_mask;
- smp_cache_start = start;
- smp_cache_end = end;
- cpumask_copy(&smp_cache_ipi_map, cpu_online_mask);
- cpumask_clear_cpu(smp_processor_id(), &smp_cache_ipi_map);
-
- send_IPI_allbutself(FLUSH_CACHE_IPI);
-
- while (!cpumask_empty(&smp_cache_ipi_map))
- /* nothing. lockup detection does not belong here */
- mb();
-}
+++ /dev/null
-/* SMP caching definitions
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-
-/*
- * Operation requests for smp_cache_call().
- *
- * One of smp_icache_ops and one of smp_dcache_ops can be OR'd together.
- */
-enum smp_icache_ops {
- SMP_ICACHE_NOP = 0x0000,
- SMP_ICACHE_INV = 0x0001,
- SMP_ICACHE_INV_RANGE = 0x0002,
-};
-#define SMP_ICACHE_OP_MASK 0x0003
-
-enum smp_dcache_ops {
- SMP_DCACHE_NOP = 0x0000,
- SMP_DCACHE_INV = 0x0004,
- SMP_DCACHE_INV_RANGE = 0x0008,
- SMP_DCACHE_FLUSH = 0x000c,
- SMP_DCACHE_FLUSH_RANGE = 0x0010,
- SMP_DCACHE_FLUSH_INV = 0x0014,
- SMP_DCACHE_FLUSH_INV_RANGE = 0x0018,
-};
-#define SMP_DCACHE_OP_MASK 0x001c
-
-#define SMP_IDCACHE_INV_FLUSH (SMP_ICACHE_INV | SMP_DCACHE_FLUSH)
-#define SMP_IDCACHE_INV_FLUSH_RANGE (SMP_ICACHE_INV_RANGE | SMP_DCACHE_FLUSH_RANGE)
-
-/*
- * cache-smp.c
- */
-#ifdef CONFIG_SMP
-extern spinlock_t smp_cache_lock;
-
-extern void smp_cache_call(unsigned long opr_mask,
- unsigned long addr, unsigned long end);
-
-static inline unsigned long smp_lock_cache(void)
- __acquires(&smp_cache_lock)
-{
- unsigned long flags;
- spin_lock_irqsave(&smp_cache_lock, flags);
- return flags;
-}
-
-static inline void smp_unlock_cache(unsigned long flags)
- __releases(&smp_cache_lock)
-{
- spin_unlock_irqrestore(&smp_cache_lock, flags);
-}
-
-#else
-static inline unsigned long smp_lock_cache(void) { return 0; }
-static inline void smp_unlock_cache(unsigned long flags) {}
-static inline void smp_cache_call(unsigned long opr_mask,
- unsigned long addr, unsigned long end)
-{
-}
-#endif /* CONFIG_SMP */
+++ /dev/null
-/* MN10300 Cache flushing routines
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/threads.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/processor.h>
-#include <asm/cacheflush.h>
-#include <asm/io.h>
-#include <linux/uaccess.h>
-#include <asm/smp.h>
-#include "cache-smp.h"
-
-EXPORT_SYMBOL(mn10300_icache_inv);
-EXPORT_SYMBOL(mn10300_icache_inv_range);
-EXPORT_SYMBOL(mn10300_icache_inv_range2);
-EXPORT_SYMBOL(mn10300_icache_inv_page);
-EXPORT_SYMBOL(mn10300_dcache_inv);
-EXPORT_SYMBOL(mn10300_dcache_inv_range);
-EXPORT_SYMBOL(mn10300_dcache_inv_range2);
-EXPORT_SYMBOL(mn10300_dcache_inv_page);
-
-#ifdef CONFIG_MN10300_CACHE_WBACK
-EXPORT_SYMBOL(mn10300_dcache_flush);
-EXPORT_SYMBOL(mn10300_dcache_flush_inv);
-EXPORT_SYMBOL(mn10300_dcache_flush_inv_range);
-EXPORT_SYMBOL(mn10300_dcache_flush_inv_range2);
-EXPORT_SYMBOL(mn10300_dcache_flush_inv_page);
-EXPORT_SYMBOL(mn10300_dcache_flush_range);
-EXPORT_SYMBOL(mn10300_dcache_flush_range2);
-EXPORT_SYMBOL(mn10300_dcache_flush_page);
-#endif
-
-/*
- * allow userspace to flush the instruction cache
- */
-asmlinkage long sys_cacheflush(unsigned long start, unsigned long end)
-{
- if (end < start)
- return -EINVAL;
-
- flush_icache_range(start, end);
- return 0;
-}
+++ /dev/null
-/* MN10300 CPU core caching macros -*- asm -*-
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-
-###############################################################################
-#
-# Invalidate the instruction cache.
-# A0: Should hold CHCTR
-# D0: Should have been read from CHCTR
-# D1: Will be clobbered
-#
-# On some cores it is necessary to disable the icache whilst we do this.
-#
-###############################################################################
- .macro invalidate_icache,disable_irq
-
-#if defined(CONFIG_AM33_2) || defined(CONFIG_AM33_3)
- .if \disable_irq
- # don't want an interrupt routine seeing a disabled cache
- mov epsw,d1
- and ~EPSW_IE,epsw
- or EPSW_NMID,epsw
- nop
- nop
- .endif
-
- # disable the icache
- and ~CHCTR_ICEN,d0
- movhu d0,(a0)
-
- # and wait for it to calm down
- setlb
- movhu (a0),d0
- btst CHCTR_ICBUSY,d0
- lne
-
- # invalidate
- or CHCTR_ICINV,d0
- movhu d0,(a0)
-
- # wait for the cache to finish
- setlb
- movhu (a0),d0
- btst CHCTR_ICBUSY,d0
- lne
-
- # and reenable it
- or CHCTR_ICEN,d0
- movhu d0,(a0)
- movhu (a0),d0
-
- .if \disable_irq
- LOCAL_IRQ_RESTORE(d1)
- .endif
-
-#else /* CONFIG_AM33_2 || CONFIG_AM33_3 */
-
- # invalidate
- or CHCTR_ICINV,d0
- movhu d0,(a0)
- movhu (a0),d0
-
-#endif /* CONFIG_AM33_2 || CONFIG_AM33_3 */
- .endm
-
-###############################################################################
-#
-# Invalidate the data cache.
-# A0: Should hold CHCTR
-# D0: Should have been read from CHCTR
-# D1: Will be clobbered
-#
-# On some cores it is necessary to disable the dcache whilst we do this.
-#
-###############################################################################
- .macro invalidate_dcache,disable_irq
-
-#if defined(CONFIG_AM33_2) || defined(CONFIG_AM33_3)
- .if \disable_irq
- # don't want an interrupt routine seeing a disabled cache
- mov epsw,d1
- and ~EPSW_IE,epsw
- or EPSW_NMID,epsw
- nop
- nop
- .endif
-
- # disable the dcache
- and ~CHCTR_DCEN,d0
- movhu d0,(a0)
-
- # and wait for it to calm down
- setlb
- movhu (a0),d0
- btst CHCTR_DCBUSY,d0
- lne
-
- # invalidate
- or CHCTR_DCINV,d0
- movhu d0,(a0)
-
- # wait for the cache to finish
- setlb
- movhu (a0),d0
- btst CHCTR_DCBUSY,d0
- lne
-
- # and reenable it
- or CHCTR_DCEN,d0
- movhu d0,(a0)
- movhu (a0),d0
-
- .if \disable_irq
- LOCAL_IRQ_RESTORE(d1)
- .endif
-
-#else /* CONFIG_AM33_2 || CONFIG_AM33_3 */
-
- # invalidate
- or CHCTR_DCINV,d0
- movhu d0,(a0)
- movhu (a0),d0
-
-#endif /* CONFIG_AM33_2 || CONFIG_AM33_3 */
- .endm
+++ /dev/null
-/* MN10300 Dynamic DMA mapping support
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- * Derived from: arch/i386/kernel/pci-dma.c
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/pci.h>
-#include <linux/gfp.h>
-#include <linux/export.h>
-#include <asm/io.h>
-
-static unsigned long pci_sram_allocated = 0xbc000000;
-
-static void *mn10300_dma_alloc(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
-{
- unsigned long addr;
- void *ret;
-
- pr_debug("dma_alloc_coherent(%s,%zu,%x)\n",
- dev ? dev_name(dev) : "?", size, gfp);
-
- if (0xbe000000 - pci_sram_allocated >= size) {
- size = (size + 255) & ~255;
- addr = pci_sram_allocated;
- pci_sram_allocated += size;
- ret = (void *) addr;
- goto done;
- }
-
- if (dev == NULL || dev->coherent_dma_mask < 0xffffffff)
- gfp |= GFP_DMA;
-
- addr = __get_free_pages(gfp, get_order(size));
- if (!addr)
- return NULL;
-
- /* map the coherent memory through the uncached memory window */
- ret = (void *) (addr | 0x20000000);
-
- /* fill the memory with obvious rubbish */
- memset((void *) addr, 0xfb, size);
-
- /* write back and evict all cache lines covering this region */
- mn10300_dcache_flush_inv_range2(virt_to_phys((void *) addr), PAGE_SIZE);
-
-done:
- *dma_handle = virt_to_bus((void *) addr);
- printk("dma_alloc_coherent() = %p [%x]\n", ret, *dma_handle);
- return ret;
-}
-
-static void mn10300_dma_free(struct device *dev, size_t size, void *vaddr,
- dma_addr_t dma_handle, unsigned long attrs)
-{
- unsigned long addr = (unsigned long) vaddr & ~0x20000000;
-
- if (addr >= 0x9c000000)
- return;
-
- free_pages(addr, get_order(size));
-}
-
-static int mn10300_dma_map_sg(struct device *dev, struct scatterlist *sglist,
- int nents, enum dma_data_direction direction,
- unsigned long attrs)
-{
- struct scatterlist *sg;
- int i;
-
- for_each_sg(sglist, sg, nents, i) {
- BUG_ON(!sg_page(sg));
-
- sg->dma_address = sg_phys(sg);
- }
-
- mn10300_dcache_flush_inv();
- return nents;
-}
-
-static dma_addr_t mn10300_dma_map_page(struct device *dev, struct page *page,
- unsigned long offset, size_t size,
- enum dma_data_direction direction, unsigned long attrs)
-{
- return page_to_bus(page) + offset;
-}
-
-static void mn10300_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
- size_t size, enum dma_data_direction direction)
-{
- mn10300_dcache_flush_inv();
-}
-
-static void mn10300_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
- int nelems, enum dma_data_direction direction)
-{
- mn10300_dcache_flush_inv();
-}
-
-static int mn10300_dma_supported(struct device *dev, u64 mask)
-{
- /*
- * we fall back to GFP_DMA when the mask isn't all 1s, so we can't
- * guarantee allocations that must be within a tighter range than
- * GFP_DMA
- */
- if (mask < 0x00ffffff)
- return 0;
- return 1;
-}
-
-const struct dma_map_ops mn10300_dma_ops = {
- .alloc = mn10300_dma_alloc,
- .free = mn10300_dma_free,
- .map_page = mn10300_dma_map_page,
- .map_sg = mn10300_dma_map_sg,
- .sync_single_for_device = mn10300_dma_sync_single_for_device,
- .sync_sg_for_device = mn10300_dma_sync_sg_for_device,
-};
+++ /dev/null
-/* MN10300 In-kernel exception handling
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/extable.h>
-#include <linux/spinlock.h>
-#include <linux/uaccess.h>
-
-int fixup_exception(struct pt_regs *regs)
-{
- const struct exception_table_entry *fixup;
-
- fixup = search_exception_tables(regs->pc);
- if (fixup) {
- regs->pc = fixup->fixup;
- return 1;
- }
-
- return 0;
-}
+++ /dev/null
-/* MN10300 MMU Fault handler
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Modified by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/vt_kern.h> /* For unblank_screen() */
-#include <linux/uaccess.h>
-
-#include <asm/pgalloc.h>
-#include <asm/hardirq.h>
-#include <asm/cpu-regs.h>
-#include <asm/debugger.h>
-#include <asm/gdb-stub.h>
-
-/*
- * Unlock any spinlocks which will prevent us from getting the
- * message out
- */
-void bust_spinlocks(int yes)
-{
- if (yes) {
- oops_in_progress = 1;
- } else {
- int loglevel_save = console_loglevel;
-#ifdef CONFIG_VT
- unblank_screen();
-#endif
- oops_in_progress = 0;
- /*
- * OK, the message is on the console. Now we call printk()
- * without oops_in_progress set so that printk will give klogd
- * a poke. Hold onto your hats...
- */
- console_loglevel = 15; /* NMI oopser may have shut the console
- * up */
- printk(" ");
- console_loglevel = loglevel_save;
- }
-}
-
-void do_BUG(const char *file, int line)
-{
- bust_spinlocks(1);
- printk(KERN_EMERG CUT_HERE);
- printk(KERN_EMERG "kernel BUG at %s:%d!\n", file, line);
-}
-
-#if 0
-static void print_pagetable_entries(pgd_t *pgdir, unsigned long address)
-{
- pgd_t *pgd;
- pmd_t *pmd;
- pte_t *pte;
-
- pgd = pgdir + __pgd_offset(address);
- printk(KERN_DEBUG "pgd entry %p: %016Lx\n",
- pgd, (long long) pgd_val(*pgd));
-
- if (!pgd_present(*pgd)) {
- printk(KERN_DEBUG "... pgd not present!\n");
- return;
- }
- pmd = pmd_offset(pgd, address);
- printk(KERN_DEBUG "pmd entry %p: %016Lx\n",
- pmd, (long long)pmd_val(*pmd));
-
- if (!pmd_present(*pmd)) {
- printk(KERN_DEBUG "... pmd not present!\n");
- return;
- }
- pte = pte_offset(pmd, address);
- printk(KERN_DEBUG "pte entry %p: %016Lx\n",
- pte, (long long) pte_val(*pte));
-
- if (!pte_present(*pte))
- printk(KERN_DEBUG "... pte not present!\n");
-}
-#endif
-
-/*
- * This routine handles page faults. It determines the address,
- * and the problem, and then passes it off to one of the appropriate
- * routines.
- *
- * fault_code:
- * - LSW: either MMUFCR_IFC or MMUFCR_DFC as appropriate
- * - MSW: 0 if data access, 1 if instruction access
- * - bit 0: TLB miss flag
- * - bit 1: initial write
- * - bit 2: page invalid
- * - bit 3: protection violation
- * - bit 4: accessor (0=user 1=kernel)
- * - bit 5: 0=read 1=write
- * - bit 6-8: page protection spec
- * - bit 9: illegal address
- * - bit 16: 0=data 1=ins
- *
- */
-asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long fault_code,
- unsigned long address)
-{
- struct vm_area_struct *vma;
- struct task_struct *tsk;
- struct mm_struct *mm;
- unsigned long page;
- siginfo_t info;
- int fault;
- unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
-
-#ifdef CONFIG_GDBSTUB
- /* handle GDB stub causing a fault */
- if (gdbstub_busy) {
- gdbstub_exception(regs, TBR & TBR_INT_CODE);
- return;
- }
-#endif
-
-#if 0
- printk(KERN_DEBUG "--- do_page_fault(%p,%s:%04lx,%08lx)\n",
- regs,
- fault_code & 0x10000 ? "ins" : "data",
- fault_code & 0xffff, address);
-#endif
-
- tsk = current;
-
- /*
- * We fault-in kernel-space virtual memory on-demand. The
- * 'reference' page table is init_mm.pgd.
- *
- * NOTE! We MUST NOT take any locks for this case. We may
- * be in an interrupt or a critical region, and should
- * only copy the information from the master page table,
- * nothing more.
- *
- * This verifies that the fault happens in kernel space
- * and that the fault was a page not present (invalid) error
- */
- if (address >= VMALLOC_START && address < VMALLOC_END &&
- (fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_SR &&
- (fault_code & MMUFCR_xFC_PGINVAL) == MMUFCR_xFC_PGINVAL
- )
- goto vmalloc_fault;
-
- mm = tsk->mm;
- info.si_code = SEGV_MAPERR;
-
- /*
- * If we're in an interrupt or have no user
- * context, we must not take the fault..
- */
- if (faulthandler_disabled() || !mm)
- goto no_context;
-
- if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_USR)
- flags |= FAULT_FLAG_USER;
-retry:
- down_read(&mm->mmap_sem);
-
- vma = find_vma(mm, address);
- if (!vma)
- goto bad_area;
- if (vma->vm_start <= address)
- goto good_area;
- if (!(vma->vm_flags & VM_GROWSDOWN))
- goto bad_area;
-
- if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_USR) {
- /* accessing the stack below the stack pointer is always a
- * bug */
- if ((address & PAGE_MASK) + 2 * PAGE_SIZE < regs->sp) {
-#if 0
- printk(KERN_WARNING
- "[%d] ### Access below stack @%lx (sp=%lx)\n",
- current->pid, address, regs->sp);
- printk(KERN_WARNING
- "vma [%08x - %08x]\n",
- vma->vm_start, vma->vm_end);
- show_registers(regs);
- printk(KERN_WARNING
- "[%d] ### Code: [%08lx]"
- " %02x %02x %02x %02x %02x %02x %02x %02x\n",
- current->pid,
- regs->pc,
- ((u8 *) regs->pc)[0],
- ((u8 *) regs->pc)[1],
- ((u8 *) regs->pc)[2],
- ((u8 *) regs->pc)[3],
- ((u8 *) regs->pc)[4],
- ((u8 *) regs->pc)[5],
- ((u8 *) regs->pc)[6],
- ((u8 *) regs->pc)[7]
- );
-#endif
- goto bad_area;
- }
- }
-
- if (expand_stack(vma, address))
- goto bad_area;
-
-/*
- * Ok, we have a good vm_area for this memory access, so
- * we can handle it..
- */
-good_area:
- info.si_code = SEGV_ACCERR;
- switch (fault_code & (MMUFCR_xFC_PGINVAL|MMUFCR_xFC_TYPE)) {
- default: /* 3: write, present */
- case MMUFCR_xFC_TYPE_WRITE:
-#ifdef TEST_VERIFY_AREA
- if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_SR)
- printk(KERN_DEBUG "WP fault at %08lx\n", regs->pc);
-#endif
- /* write to absent page */
- case MMUFCR_xFC_PGINVAL | MMUFCR_xFC_TYPE_WRITE:
- if (!(vma->vm_flags & VM_WRITE))
- goto bad_area;
- flags |= FAULT_FLAG_WRITE;
- break;
-
- /* read from protected page */
- case MMUFCR_xFC_TYPE_READ:
- goto bad_area;
-
- /* read from absent page present */
- case MMUFCR_xFC_PGINVAL | MMUFCR_xFC_TYPE_READ:
- if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
- goto bad_area;
- break;
- }
-
- /*
- * If for any reason at all we couldn't handle the fault,
- * make sure we exit gracefully rather than endlessly redo
- * the fault.
- */
- fault = handle_mm_fault(vma, address, flags);
-
- if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
- return;
-
- if (unlikely(fault & VM_FAULT_ERROR)) {
- if (fault & VM_FAULT_OOM)
- goto out_of_memory;
- else if (fault & VM_FAULT_SIGSEGV)
- goto bad_area;
- else if (fault & VM_FAULT_SIGBUS)
- goto do_sigbus;
- BUG();
- }
- if (flags & FAULT_FLAG_ALLOW_RETRY) {
- if (fault & VM_FAULT_MAJOR)
- current->maj_flt++;
- else
- current->min_flt++;
- if (fault & VM_FAULT_RETRY) {
- flags &= ~FAULT_FLAG_ALLOW_RETRY;
-
- /* No need to up_read(&mm->mmap_sem) as we would
- * have already released it in __lock_page_or_retry
- * in mm/filemap.c.
- */
-
- goto retry;
- }
- }
-
- up_read(&mm->mmap_sem);
- return;
-
-/*
- * Something tried to access memory that isn't in our memory map..
- * Fix it, but check if it's kernel or user first..
- */
-bad_area:
- up_read(&mm->mmap_sem);
-
- /* User mode accesses just cause a SIGSEGV */
- if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_USR) {
- info.si_signo = SIGSEGV;
- info.si_errno = 0;
- /* info.si_code has been set above */
- info.si_addr = (void *)address;
- force_sig_info(SIGSEGV, &info, tsk);
- return;
- }
-
-no_context:
- /* Are we prepared to handle this kernel fault? */
- if (fixup_exception(regs))
- return;
-
-/*
- * Oops. The kernel tried to access some bad page. We'll have to
- * terminate things with extreme prejudice.
- */
-
- bust_spinlocks(1);
-
- if (address < PAGE_SIZE)
- printk(KERN_ALERT
- "Unable to handle kernel NULL pointer dereference");
- else
- printk(KERN_ALERT
- "Unable to handle kernel paging request");
- printk(" at virtual address %08lx\n", address);
- printk(" printing pc:\n");
- printk(KERN_ALERT "%08lx\n", regs->pc);
-
- debugger_intercept(fault_code & 0x00010000 ? EXCEP_IAERROR : EXCEP_DAERROR,
- SIGSEGV, SEGV_ACCERR, regs);
-
- page = PTBR;
- page = ((unsigned long *) __va(page))[address >> 22];
- printk(KERN_ALERT "*pde = %08lx\n", page);
- if (page & 1) {
- page &= PAGE_MASK;
- address &= 0x003ff000;
- page = ((unsigned long *) __va(page))[address >> PAGE_SHIFT];
- printk(KERN_ALERT "*pte = %08lx\n", page);
- }
-
- die("Oops", regs, fault_code);
- do_exit(SIGKILL);
-
-/*
- * We ran out of memory, or some other thing happened to us that made
- * us unable to handle the page fault gracefully.
- */
-out_of_memory:
- up_read(&mm->mmap_sem);
- if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_USR) {
- pagefault_out_of_memory();
- return;
- }
- goto no_context;
-
-do_sigbus:
- up_read(&mm->mmap_sem);
-
- /*
- * Send a sigbus, regardless of whether we were in kernel
- * or user mode.
- */
- info.si_signo = SIGBUS;
- info.si_errno = 0;
- info.si_code = BUS_ADRERR;
- info.si_addr = (void *)address;
- force_sig_info(SIGBUS, &info, tsk);
-
- /* Kernel mode? Handle exceptions or die */
- if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_SR)
- goto no_context;
- return;
-
-vmalloc_fault:
- {
- /*
- * Synchronize this task's top level page-table
- * with the 'reference' page table.
- *
- * Do _not_ use "tsk" here. We might be inside
- * an interrupt in the middle of a task switch..
- */
- int index = pgd_index(address);
- pgd_t *pgd, *pgd_k;
- pud_t *pud, *pud_k;
- pmd_t *pmd, *pmd_k;
- pte_t *pte_k;
-
- pgd_k = init_mm.pgd + index;
-
- if (!pgd_present(*pgd_k))
- goto no_context;
-
- pud_k = pud_offset(pgd_k, address);
- if (!pud_present(*pud_k))
- goto no_context;
-
- pmd_k = pmd_offset(pud_k, address);
- if (!pmd_present(*pmd_k))
- goto no_context;
-
- pgd = (pgd_t *) PTBR + index;
- pud = pud_offset(pgd, address);
- pmd = pmd_offset(pud, address);
- set_pmd(pmd, *pmd_k);
-
- pte_k = pte_offset_kernel(pmd_k, address);
- if (!pte_present(*pte_k))
- goto no_context;
- return;
- }
-}
+++ /dev/null
-/* MN10300 Memory management initialisation
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Modified by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <linux/initrd.h>
-#include <linux/highmem.h>
-#include <linux/pagemap.h>
-#include <linux/bootmem.h>
-#include <linux/gfp.h>
-
-#include <asm/processor.h>
-#include <linux/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/pgalloc.h>
-#include <asm/dma.h>
-#include <asm/tlb.h>
-#include <asm/sections.h>
-
-unsigned long highstart_pfn, highend_pfn;
-
-#ifdef CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
-static struct vm_struct user_iomap_vm;
-#endif
-
-/*
- * set up paging
- */
-void __init paging_init(void)
-{
- unsigned long zones_size[MAX_NR_ZONES] = {0,};
- pte_t *ppte;
- int loop;
-
- /* main kernel space -> RAM mapping is handled as 1:1 transparent by
- * the MMU */
- memset(swapper_pg_dir, 0, sizeof(swapper_pg_dir));
- memset(kernel_vmalloc_ptes, 0, sizeof(kernel_vmalloc_ptes));
-
- /* load the VMALLOC area PTE table addresses into the kernel PGD */
- ppte = kernel_vmalloc_ptes;
- for (loop = VMALLOC_START / (PAGE_SIZE * PTRS_PER_PTE);
- loop < VMALLOC_END / (PAGE_SIZE * PTRS_PER_PTE);
- loop++
- ) {
- set_pgd(swapper_pg_dir + loop, __pgd(__pa(ppte) | _PAGE_TABLE));
- ppte += PAGE_SIZE / sizeof(pte_t);
- }
-
- /* declare the sizes of the RAM zones (only use the normal zone) */
- zones_size[ZONE_NORMAL] =
- contig_page_data.bdata->node_low_pfn -
- contig_page_data.bdata->node_min_pfn;
-
- /* pass the memory from the bootmem allocator to the main allocator */
- free_area_init(zones_size);
-
-#ifdef CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
- /* The Atomic Operation Unit registers need to be mapped to userspace
- * for all processes. The following uses vm_area_register_early() to
- * reserve the first page of the vmalloc area and sets the pte for that
- * page.
- *
- * glibc hardcodes this virtual mapping, so we're pretty much stuck with
- * it from now on.
- */
- user_iomap_vm.flags = VM_USERMAP;
- user_iomap_vm.size = 1 << PAGE_SHIFT;
- vm_area_register_early(&user_iomap_vm, PAGE_SIZE);
- ppte = kernel_vmalloc_ptes;
- set_pte(ppte, pfn_pte(USER_ATOMIC_OPS_PAGE_ADDR >> PAGE_SHIFT,
- PAGE_USERIO));
-#endif
-
- local_flush_tlb_all();
-}
-
-/*
- * transfer all the memory from the bootmem allocator to the runtime allocator
- */
-void __init mem_init(void)
-{
- BUG_ON(!mem_map);
-
-#define START_PFN (contig_page_data.bdata->node_min_pfn)
-#define MAX_LOW_PFN (contig_page_data.bdata->node_low_pfn)
-
- max_mapnr = MAX_LOW_PFN - START_PFN;
- high_memory = (void *) __va(MAX_LOW_PFN * PAGE_SIZE);
-
- /* clear the zero-page */
- memset(empty_zero_page, 0, PAGE_SIZE);
-
- /* this will put all low memory onto the freelists */
- free_all_bootmem();
-
- mem_init_print_info(NULL);
-}
-
-/*
- * recycle memory containing stuff only required for initialisation
- */
-void free_initmem(void)
-{
- free_initmem_default(POISON_FREE_INITMEM);
-}
-
-/*
- * dispose of the memory on which the initial ramdisk resided
- */
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
- free_reserved_area((void *)start, (void *)end, POISON_FREE_INITMEM,
- "initrd");
-}
-#endif
+++ /dev/null
-/* MN10300 Misalignment fixup handler
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/extable.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <asm/processor.h>
-#include <linux/uaccess.h>
-#include <asm/io.h>
-#include <linux/atomic.h>
-#include <asm/smp.h>
-#include <asm/pgalloc.h>
-#include <asm/cpu-regs.h>
-#include <asm/busctl-regs.h>
-#include <asm/fpu.h>
-#include <asm/gdb-stub.h>
-#include <asm/asm-offsets.h>
-
-#if 0
-#define kdebug(FMT, ...) printk(KERN_DEBUG "MISALIGN: "FMT"\n", ##__VA_ARGS__)
-#else
-#define kdebug(FMT, ...) do {} while (0)
-#endif
-
-static int misalignment_addr(unsigned long *registers, unsigned long sp,
- unsigned params, unsigned opcode,
- unsigned long disp,
- void **_address, unsigned long **_postinc,
- unsigned long *_inc);
-
-static int misalignment_reg(unsigned long *registers, unsigned params,
- unsigned opcode, unsigned long disp,
- unsigned long **_register);
-
-static void misalignment_MOV_Lcc(struct pt_regs *regs, uint32_t opcode);
-
-static const unsigned Dreg_index[] = {
- REG_D0 >> 2, REG_D1 >> 2, REG_D2 >> 2, REG_D3 >> 2
-};
-
-static const unsigned Areg_index[] = {
- REG_A0 >> 2, REG_A1 >> 2, REG_A2 >> 2, REG_A3 >> 2
-};
-
-static const unsigned Rreg_index[] = {
- REG_E0 >> 2, REG_E1 >> 2, REG_E2 >> 2, REG_E3 >> 2,
- REG_E4 >> 2, REG_E5 >> 2, REG_E6 >> 2, REG_E7 >> 2,
- REG_A0 >> 2, REG_A1 >> 2, REG_A2 >> 2, REG_A3 >> 2,
- REG_D0 >> 2, REG_D1 >> 2, REG_D2 >> 2, REG_D3 >> 2
-};
-
-enum format_id {
- FMT_S0,
- FMT_S1,
- FMT_S2,
- FMT_S4,
- FMT_D0,
- FMT_D1,
- FMT_D2,
- FMT_D4,
- FMT_D6,
- FMT_D7,
- FMT_D8,
- FMT_D9,
- FMT_D10,
-};
-
-static const struct {
- u_int8_t opsz, dispsz;
-} format_tbl[16] = {
- [FMT_S0] = { 8, 0 },
- [FMT_S1] = { 8, 8 },
- [FMT_S2] = { 8, 16 },
- [FMT_S4] = { 8, 32 },
- [FMT_D0] = { 16, 0 },
- [FMT_D1] = { 16, 8 },
- [FMT_D2] = { 16, 16 },
- [FMT_D4] = { 16, 32 },
- [FMT_D6] = { 24, 0 },
- [FMT_D7] = { 24, 8 },
- [FMT_D8] = { 24, 24 },
- [FMT_D9] = { 24, 32 },
- [FMT_D10] = { 32, 0 },
-};
-
-enum value_id {
- DM0, /* data reg in opcode in bits 0-1 */
- DM1, /* data reg in opcode in bits 2-3 */
- DM2, /* data reg in opcode in bits 4-5 */
- AM0, /* addr reg in opcode in bits 0-1 */
- AM1, /* addr reg in opcode in bits 2-3 */
- AM2, /* addr reg in opcode in bits 4-5 */
- RM0, /* reg in opcode in bits 0-3 */
- RM1, /* reg in opcode in bits 2-5 */
- RM2, /* reg in opcode in bits 4-7 */
- RM4, /* reg in opcode in bits 8-11 */
- RM6, /* reg in opcode in bits 12-15 */
-
- RD0, /* reg in displacement in bits 0-3 */
- RD2, /* reg in displacement in bits 4-7 */
-
- SP, /* stack pointer */
-
- SD8, /* 8-bit signed displacement */
- SD16, /* 16-bit signed displacement */
- SD24, /* 24-bit signed displacement */
- SIMM4_2, /* 4-bit signed displacement in opcode bits 4-7 */
- SIMM8, /* 8-bit signed immediate */
- IMM8, /* 8-bit unsigned immediate */
- IMM16, /* 16-bit unsigned immediate */
- IMM24, /* 24-bit unsigned immediate */
- IMM32, /* 32-bit unsigned immediate */
- IMM32_HIGH8, /* 32-bit unsigned immediate, LSB in opcode */
-
- IMM32_MEM, /* 32-bit unsigned displacement */
- IMM32_HIGH8_MEM, /* 32-bit unsigned displacement, LSB in opcode */
-
- DN0 = DM0,
- DN1 = DM1,
- DN2 = DM2,
- AN0 = AM0,
- AN1 = AM1,
- AN2 = AM2,
- RN0 = RM0,
- RN1 = RM1,
- RN2 = RM2,
- RN4 = RM4,
- RN6 = RM6,
- DI = DM1,
- RI = RM2,
-
-};
-
-struct mn10300_opcode {
- const char name[8];
- u_int32_t opcode;
- u_int32_t opmask;
- unsigned exclusion;
-
- enum format_id format;
-
- unsigned cpu_mask;
-#define AM33 330
-
- unsigned params[2];
-#define MEM(ADDR) (0x80000000 | (ADDR))
-#define MEM2(ADDR1, ADDR2) (0x80000000 | (ADDR1) << 8 | (ADDR2))
-#define MEMINC(ADDR) (0x81000000 | (ADDR))
-#define MEMINC2(ADDR, INC) (0x81000000 | (ADDR) << 8 | (INC))
-};
-
-/* LIBOPCODES EXCERPT
- Assemble Matsushita MN10300 instructions.
- Copyright 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public Licence as published by
- the Free Software Foundation; either version 2 of the Licence, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public Licence for more details.
-
- You should have received a copy of the GNU General Public Licence
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-*/
-static const struct mn10300_opcode mn10300_opcodes[] = {
-{ "mov", 0x4200, 0xf300, 0, FMT_S1, 0, {DM1, MEM2(IMM8, SP)}},
-{ "mov", 0x4300, 0xf300, 0, FMT_S1, 0, {AM1, MEM2(IMM8, SP)}},
-{ "mov", 0x5800, 0xfc00, 0, FMT_S1, 0, {MEM2(IMM8, SP), DN0}},
-{ "mov", 0x5c00, 0xfc00, 0, FMT_S1, 0, {MEM2(IMM8, SP), AN0}},
-{ "mov", 0x60, 0xf0, 0, FMT_S0, 0, {DM1, MEM(AN0)}},
-{ "mov", 0x70, 0xf0, 0, FMT_S0, 0, {MEM(AM0), DN1}},
-{ "mov", 0xf000, 0xfff0, 0, FMT_D0, 0, {MEM(AM0), AN1}},
-{ "mov", 0xf010, 0xfff0, 0, FMT_D0, 0, {AM1, MEM(AN0)}},
-{ "mov", 0xf300, 0xffc0, 0, FMT_D0, 0, {MEM2(DI, AM0), DN2}},
-{ "mov", 0xf340, 0xffc0, 0, FMT_D0, 0, {DM2, MEM2(DI, AN0)}},
-{ "mov", 0xf380, 0xffc0, 0, FMT_D0, 0, {MEM2(DI, AM0), AN2}},
-{ "mov", 0xf3c0, 0xffc0, 0, FMT_D0, 0, {AM2, MEM2(DI, AN0)}},
-{ "mov", 0xf80000, 0xfff000, 0, FMT_D1, 0, {MEM2(SD8, AM0), DN1}},
-{ "mov", 0xf81000, 0xfff000, 0, FMT_D1, 0, {DM1, MEM2(SD8, AN0)}},
-{ "mov", 0xf82000, 0xfff000, 0, FMT_D1, 0, {MEM2(SD8,AM0), AN1}},
-{ "mov", 0xf83000, 0xfff000, 0, FMT_D1, 0, {AM1, MEM2(SD8, AN0)}},
-{ "mov", 0xf90a00, 0xffff00, 0, FMT_D6, AM33, {MEM(RM0), RN2}},
-{ "mov", 0xf91a00, 0xffff00, 0, FMT_D6, AM33, {RM2, MEM(RN0)}},
-{ "mov", 0xf96a00, 0xffff00, 0x12, FMT_D6, AM33, {MEMINC(RM0), RN2}},
-{ "mov", 0xf97a00, 0xffff00, 0, FMT_D6, AM33, {RM2, MEMINC(RN0)}},
-{ "mov", 0xfa000000, 0xfff00000, 0, FMT_D2, 0, {MEM2(SD16, AM0), DN1}},
-{ "mov", 0xfa100000, 0xfff00000, 0, FMT_D2, 0, {DM1, MEM2(SD16, AN0)}},
-{ "mov", 0xfa200000, 0xfff00000, 0, FMT_D2, 0, {MEM2(SD16, AM0), AN1}},
-{ "mov", 0xfa300000, 0xfff00000, 0, FMT_D2, 0, {AM1, MEM2(SD16, AN0)}},
-{ "mov", 0xfa900000, 0xfff30000, 0, FMT_D2, 0, {AM1, MEM2(IMM16, SP)}},
-{ "mov", 0xfa910000, 0xfff30000, 0, FMT_D2, 0, {DM1, MEM2(IMM16, SP)}},
-{ "mov", 0xfab00000, 0xfffc0000, 0, FMT_D2, 0, {MEM2(IMM16, SP), AN0}},
-{ "mov", 0xfab40000, 0xfffc0000, 0, FMT_D2, 0, {MEM2(IMM16, SP), DN0}},
-{ "mov", 0xfb0a0000, 0xffff0000, 0, FMT_D7, AM33, {MEM2(SD8, RM0), RN2}},
-{ "mov", 0xfb1a0000, 0xffff0000, 0, FMT_D7, AM33, {RM2, MEM2(SD8, RN0)}},
-{ "mov", 0xfb6a0000, 0xffff0000, 0x22, FMT_D7, AM33, {MEMINC2 (RM0, SIMM8), RN2}},
-{ "mov", 0xfb7a0000, 0xffff0000, 0, FMT_D7, AM33, {RM2, MEMINC2 (RN0, SIMM8)}},
-{ "mov", 0xfb8a0000, 0xffff0f00, 0, FMT_D7, AM33, {MEM2(IMM8, SP), RN2}},
-{ "mov", 0xfb8e0000, 0xffff000f, 0, FMT_D7, AM33, {MEM2(RI, RM0), RD2}},
-{ "mov", 0xfb9a0000, 0xffff0f00, 0, FMT_D7, AM33, {RM2, MEM2(IMM8, SP)}},
-{ "mov", 0xfb9e0000, 0xffff000f, 0, FMT_D7, AM33, {RD2, MEM2(RI, RN0)}},
-{ "mov", 0xfc000000, 0xfff00000, 0, FMT_D4, 0, {MEM2(IMM32,AM0), DN1}},
-{ "mov", 0xfc100000, 0xfff00000, 0, FMT_D4, 0, {DM1, MEM2(IMM32,AN0)}},
-{ "mov", 0xfc200000, 0xfff00000, 0, FMT_D4, 0, {MEM2(IMM32,AM0), AN1}},
-{ "mov", 0xfc300000, 0xfff00000, 0, FMT_D4, 0, {AM1, MEM2(IMM32,AN0)}},
-{ "mov", 0xfc800000, 0xfff30000, 0, FMT_D4, 0, {AM1, MEM(IMM32_MEM)}},
-{ "mov", 0xfc810000, 0xfff30000, 0, FMT_D4, 0, {DM1, MEM(IMM32_MEM)}},
-{ "mov", 0xfc900000, 0xfff30000, 0, FMT_D4, 0, {AM1, MEM2(IMM32, SP)}},
-{ "mov", 0xfc910000, 0xfff30000, 0, FMT_D4, 0, {DM1, MEM2(IMM32, SP)}},
-{ "mov", 0xfca00000, 0xfffc0000, 0, FMT_D4, 0, {MEM(IMM32_MEM), AN0}},
-{ "mov", 0xfca40000, 0xfffc0000, 0, FMT_D4, 0, {MEM(IMM32_MEM), DN0}},
-{ "mov", 0xfcb00000, 0xfffc0000, 0, FMT_D4, 0, {MEM2(IMM32, SP), AN0}},
-{ "mov", 0xfcb40000, 0xfffc0000, 0, FMT_D4, 0, {MEM2(IMM32, SP), DN0}},
-{ "mov", 0xfd0a0000, 0xffff0000, 0, FMT_D8, AM33, {MEM2(SD24, RM0), RN2}},
-{ "mov", 0xfd1a0000, 0xffff0000, 0, FMT_D8, AM33, {RM2, MEM2(SD24, RN0)}},
-{ "mov", 0xfd6a0000, 0xffff0000, 0x22, FMT_D8, AM33, {MEMINC2 (RM0, IMM24), RN2}},
-{ "mov", 0xfd7a0000, 0xffff0000, 0, FMT_D8, AM33, {RM2, MEMINC2 (RN0, IMM24)}},
-{ "mov", 0xfd8a0000, 0xffff0f00, 0, FMT_D8, AM33, {MEM2(IMM24, SP), RN2}},
-{ "mov", 0xfd9a0000, 0xffff0f00, 0, FMT_D8, AM33, {RM2, MEM2(IMM24, SP)}},
-{ "mov", 0xfe0a0000, 0xffff0000, 0, FMT_D9, AM33, {MEM2(IMM32_HIGH8,RM0), RN2}},
-{ "mov", 0xfe0a0000, 0xffff0000, 0, FMT_D9, AM33, {MEM2(IMM32_HIGH8,RM0), RN2}},
-{ "mov", 0xfe0e0000, 0xffff0f00, 0, FMT_D9, AM33, {MEM(IMM32_HIGH8_MEM), RN2}},
-{ "mov", 0xfe1a0000, 0xffff0000, 0, FMT_D9, AM33, {RM2, MEM2(IMM32_HIGH8, RN0)}},
-{ "mov", 0xfe1a0000, 0xffff0000, 0, FMT_D9, AM33, {RM2, MEM2(IMM32_HIGH8, RN0)}},
-{ "mov", 0xfe1e0000, 0xffff0f00, 0, FMT_D9, AM33, {RM2, MEM(IMM32_HIGH8_MEM)}},
-{ "mov", 0xfe6a0000, 0xffff0000, 0x22, FMT_D9, AM33, {MEMINC2 (RM0, IMM32_HIGH8), RN2}},
-{ "mov", 0xfe7a0000, 0xffff0000, 0, FMT_D9, AM33, {RN2, MEMINC2 (RM0, IMM32_HIGH8)}},
-{ "mov", 0xfe8a0000, 0xffff0f00, 0, FMT_D9, AM33, {MEM2(IMM32_HIGH8, SP), RN2}},
-{ "mov", 0xfe9a0000, 0xffff0f00, 0, FMT_D9, AM33, {RM2, MEM2(IMM32_HIGH8, SP)}},
-
-{ "movhu", 0xf060, 0xfff0, 0, FMT_D0, 0, {MEM(AM0), DN1}},
-{ "movhu", 0xf070, 0xfff0, 0, FMT_D0, 0, {DM1, MEM(AN0)}},
-{ "movhu", 0xf480, 0xffc0, 0, FMT_D0, 0, {MEM2(DI, AM0), DN2}},
-{ "movhu", 0xf4c0, 0xffc0, 0, FMT_D0, 0, {DM2, MEM2(DI, AN0)}},
-{ "movhu", 0xf86000, 0xfff000, 0, FMT_D1, 0, {MEM2(SD8, AM0), DN1}},
-{ "movhu", 0xf87000, 0xfff000, 0, FMT_D1, 0, {DM1, MEM2(SD8, AN0)}},
-{ "movhu", 0xf89300, 0xfff300, 0, FMT_D1, 0, {DM1, MEM2(IMM8, SP)}},
-{ "movhu", 0xf8bc00, 0xfffc00, 0, FMT_D1, 0, {MEM2(IMM8, SP), DN0}},
-{ "movhu", 0xf94a00, 0xffff00, 0, FMT_D6, AM33, {MEM(RM0), RN2}},
-{ "movhu", 0xf95a00, 0xffff00, 0, FMT_D6, AM33, {RM2, MEM(RN0)}},
-{ "movhu", 0xf9ea00, 0xffff00, 0x12, FMT_D6, AM33, {MEMINC(RM0), RN2}},
-{ "movhu", 0xf9fa00, 0xffff00, 0, FMT_D6, AM33, {RM2, MEMINC(RN0)}},
-{ "movhu", 0xfa600000, 0xfff00000, 0, FMT_D2, 0, {MEM2(SD16, AM0), DN1}},
-{ "movhu", 0xfa700000, 0xfff00000, 0, FMT_D2, 0, {DM1, MEM2(SD16, AN0)}},
-{ "movhu", 0xfa930000, 0xfff30000, 0, FMT_D2, 0, {DM1, MEM2(IMM16, SP)}},
-{ "movhu", 0xfabc0000, 0xfffc0000, 0, FMT_D2, 0, {MEM2(IMM16, SP), DN0}},
-{ "movhu", 0xfb4a0000, 0xffff0000, 0, FMT_D7, AM33, {MEM2(SD8, RM0), RN2}},
-{ "movhu", 0xfb5a0000, 0xffff0000, 0, FMT_D7, AM33, {RM2, MEM2(SD8, RN0)}},
-{ "movhu", 0xfbca0000, 0xffff0f00, 0, FMT_D7, AM33, {MEM2(IMM8, SP), RN2}},
-{ "movhu", 0xfbce0000, 0xffff000f, 0, FMT_D7, AM33, {MEM2(RI, RM0), RD2}},
-{ "movhu", 0xfbda0000, 0xffff0f00, 0, FMT_D7, AM33, {RM2, MEM2(IMM8, SP)}},
-{ "movhu", 0xfbde0000, 0xffff000f, 0, FMT_D7, AM33, {RD2, MEM2(RI, RN0)}},
-{ "movhu", 0xfbea0000, 0xffff0000, 0x22, FMT_D7, AM33, {MEMINC2 (RM0, SIMM8), RN2}},
-{ "movhu", 0xfbfa0000, 0xffff0000, 0, FMT_D7, AM33, {RM2, MEMINC2 (RN0, SIMM8)}},
-{ "movhu", 0xfc600000, 0xfff00000, 0, FMT_D4, 0, {MEM2(IMM32,AM0), DN1}},
-{ "movhu", 0xfc700000, 0xfff00000, 0, FMT_D4, 0, {DM1, MEM2(IMM32,AN0)}},
-{ "movhu", 0xfc830000, 0xfff30000, 0, FMT_D4, 0, {DM1, MEM(IMM32_MEM)}},
-{ "movhu", 0xfc930000, 0xfff30000, 0, FMT_D4, 0, {DM1, MEM2(IMM32, SP)}},
-{ "movhu", 0xfcac0000, 0xfffc0000, 0, FMT_D4, 0, {MEM(IMM32_MEM), DN0}},
-{ "movhu", 0xfcbc0000, 0xfffc0000, 0, FMT_D4, 0, {MEM2(IMM32, SP), DN0}},
-{ "movhu", 0xfd4a0000, 0xffff0000, 0, FMT_D8, AM33, {MEM2(SD24, RM0), RN2}},
-{ "movhu", 0xfd5a0000, 0xffff0000, 0, FMT_D8, AM33, {RM2, MEM2(SD24, RN0)}},
-{ "movhu", 0xfdca0000, 0xffff0f00, 0, FMT_D8, AM33, {MEM2(IMM24, SP), RN2}},
-{ "movhu", 0xfdda0000, 0xffff0f00, 0, FMT_D8, AM33, {RM2, MEM2(IMM24, SP)}},
-{ "movhu", 0xfdea0000, 0xffff0000, 0x22, FMT_D8, AM33, {MEMINC2 (RM0, IMM24), RN2}},
-{ "movhu", 0xfdfa0000, 0xffff0000, 0, FMT_D8, AM33, {RM2, MEMINC2 (RN0, IMM24)}},
-{ "movhu", 0xfe4a0000, 0xffff0000, 0, FMT_D9, AM33, {MEM2(IMM32_HIGH8,RM0), RN2}},
-{ "movhu", 0xfe4e0000, 0xffff0f00, 0, FMT_D9, AM33, {MEM(IMM32_HIGH8_MEM), RN2}},
-{ "movhu", 0xfe5a0000, 0xffff0000, 0, FMT_D9, AM33, {RM2, MEM2(IMM32_HIGH8, RN0)}},
-{ "movhu", 0xfe5e0000, 0xffff0f00, 0, FMT_D9, AM33, {RM2, MEM(IMM32_HIGH8_MEM)}},
-{ "movhu", 0xfeca0000, 0xffff0f00, 0, FMT_D9, AM33, {MEM2(IMM32_HIGH8, SP), RN2}},
-{ "movhu", 0xfeda0000, 0xffff0f00, 0, FMT_D9, AM33, {RM2, MEM2(IMM32_HIGH8, SP)}},
-{ "movhu", 0xfeea0000, 0xffff0000, 0x22, FMT_D9, AM33, {MEMINC2 (RM0, IMM32_HIGH8), RN2}},
-{ "movhu", 0xfefa0000, 0xffff0000, 0, FMT_D9, AM33, {RN2, MEMINC2 (RM0, IMM32_HIGH8)}},
-
-{ "mov_llt", 0xf7e00000, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
-{ "mov_lgt", 0xf7e00001, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
-{ "mov_lge", 0xf7e00002, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
-{ "mov_lle", 0xf7e00003, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
-{ "mov_lcs", 0xf7e00004, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
-{ "mov_lhi", 0xf7e00005, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
-{ "mov_lcc", 0xf7e00006, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
-{ "mov_lls", 0xf7e00007, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
-{ "mov_leq", 0xf7e00008, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
-{ "mov_lne", 0xf7e00009, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
-{ "mov_lra", 0xf7e0000a, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}},
-
-{ "", 0, 0, 0, 0, 0, {0}},
-};
-
-/*
- * fix up misalignment problems where possible
- */
-asmlinkage void misalignment(struct pt_regs *regs, enum exception_code code)
-{
- const struct exception_table_entry *fixup;
- const struct mn10300_opcode *pop;
- unsigned long *registers = (unsigned long *) regs;
- unsigned long data, *store, *postinc, disp, inc, sp;
- mm_segment_t seg;
- siginfo_t info;
- uint32_t opcode, noc, xo, xm;
- uint8_t *pc, byte, datasz;
- void *address;
- unsigned tmp, npop, dispsz, loop;
-
- /* we don't fix up userspace misalignment faults */
- if (user_mode(regs))
- goto bus_error;
-
- sp = (unsigned long) regs + sizeof(*regs);
-
- kdebug("==>misalignment({pc=%lx,sp=%lx})", regs->pc, sp);
-
- if (regs->epsw & EPSW_IE)
- asm volatile("or %0,epsw" : : "i"(EPSW_IE));
-
- seg = get_fs();
- set_fs(KERNEL_DS);
-
- fixup = search_exception_tables(regs->pc);
-
- /* first thing to do is to match the opcode */
- pc = (u_int8_t *) regs->pc;
-
- if (__get_user(byte, pc) != 0)
- goto fetch_error;
- opcode = byte;
- noc = 8;
-
- for (pop = mn10300_opcodes; pop->name[0]; pop++) {
- npop = ilog2(pop->opcode | pop->opmask);
- if (npop <= 0 || npop > 31)
- continue;
- npop = (npop + 8) & ~7;
-
- got_more_bits:
- if (npop == noc) {
- if ((opcode & pop->opmask) == pop->opcode)
- goto found_opcode;
- } else if (npop > noc) {
- xo = pop->opcode >> (npop - noc);
- xm = pop->opmask >> (npop - noc);
-
- if ((opcode & xm) != xo)
- continue;
-
- /* we've got a partial match (an exact match on the
- * first N bytes), so we need to get some more data */
- pc++;
- if (__get_user(byte, pc) != 0)
- goto fetch_error;
- opcode = opcode << 8 | byte;
- noc += 8;
- goto got_more_bits;
- } else {
- /* there's already been a partial match as long as the
- * complete match we're now considering, so this one
- * should't match */
- continue;
- }
- }
-
- /* didn't manage to find a fixup */
- printk(KERN_CRIT "MISALIGN: %lx: unsupported instruction %x\n",
- regs->pc, opcode);
-
-failed:
- set_fs(seg);
- if (die_if_no_fixup("misalignment error", regs, code))
- return;
-
-bus_error:
- info.si_signo = SIGBUS;
- info.si_errno = 0;
- info.si_code = BUS_ADRALN;
- info.si_addr = (void *) regs->pc;
- force_sig_info(SIGBUS, &info, current);
- return;
-
- /* error reading opcodes */
-fetch_error:
- printk(KERN_CRIT
- "MISALIGN: %p: fault whilst reading instruction data\n",
- pc);
- goto failed;
-
-bad_addr_mode:
- printk(KERN_CRIT
- "MISALIGN: %lx: unsupported addressing mode %x\n",
- regs->pc, opcode);
- goto failed;
-
-bad_reg_mode:
- printk(KERN_CRIT
- "MISALIGN: %lx: unsupported register mode %x\n",
- regs->pc, opcode);
- goto failed;
-
-unsupported_instruction:
- printk(KERN_CRIT
- "MISALIGN: %lx: unsupported instruction %x (%s)\n",
- regs->pc, opcode, pop->name);
- goto failed;
-
-transfer_failed:
- set_fs(seg);
- if (fixup) {
- regs->pc = fixup->fixup;
- return;
- }
- if (die_if_no_fixup("misalignment fixup", regs, code))
- return;
-
- info.si_signo = SIGSEGV;
- info.si_errno = 0;
- info.si_code = SEGV_MAPERR;
- info.si_addr = (void *) regs->pc;
- force_sig_info(SIGSEGV, &info, current);
- return;
-
- /* we matched the opcode */
-found_opcode:
- kdebug("%lx: %x==%x { %x, %x }",
- regs->pc, opcode, pop->opcode, pop->params[0], pop->params[1]);
-
- tmp = format_tbl[pop->format].opsz;
- BUG_ON(tmp > noc); /* match was less complete than it ought to have been */
-
- if (tmp < noc) {
- tmp = noc - tmp;
- opcode >>= tmp;
- pc -= tmp >> 3;
- }
-
- /* grab the extra displacement (note it's LSB first) */
- disp = 0;
- dispsz = format_tbl[pop->format].dispsz;
- for (loop = 0; loop < dispsz; loop += 8) {
- pc++;
- if (__get_user(byte, pc) != 0)
- goto fetch_error;
- disp |= byte << loop;
- kdebug("{%p} disp[%02x]=%02x", pc, loop, byte);
- }
-
- kdebug("disp=%lx", disp);
-
- set_fs(KERNEL_XDS);
- if (fixup)
- set_fs(seg);
-
- tmp = (pop->params[0] ^ pop->params[1]) & 0x80000000;
- if (!tmp) {
- printk(KERN_CRIT
- "MISALIGN: %lx: insn not move to/from memory %x\n",
- regs->pc, opcode);
- goto failed;
- }
-
- /* determine the data transfer size of the move */
- if (pop->name[3] == 0 || /* "mov" */
- pop->name[4] == 'l') /* mov_lcc */
- inc = datasz = 4;
- else if (pop->name[3] == 'h') /* movhu */
- inc = datasz = 2;
- else
- goto unsupported_instruction;
-
- if (pop->params[0] & 0x80000000) {
- /* move memory to register */
- if (!misalignment_addr(registers, sp,
- pop->params[0], opcode, disp,
- &address, &postinc, &inc))
- goto bad_addr_mode;
-
- if (!misalignment_reg(registers, pop->params[1], opcode, disp,
- &store))
- goto bad_reg_mode;
-
- kdebug("mov%u (%p),DARn", datasz, address);
- if (copy_from_user(&data, (void *) address, datasz) != 0)
- goto transfer_failed;
- if (pop->params[0] & 0x1000000) {
- kdebug("inc=%lx", inc);
- *postinc += inc;
- }
-
- *store = data;
- kdebug("loaded %lx", data);
- } else {
- /* move register to memory */
- if (!misalignment_reg(registers, pop->params[0], opcode, disp,
- &store))
- goto bad_reg_mode;
-
- if (!misalignment_addr(registers, sp,
- pop->params[1], opcode, disp,
- &address, &postinc, &inc))
- goto bad_addr_mode;
-
- data = *store;
-
- kdebug("mov%u %lx,(%p)", datasz, data, address);
- if (copy_to_user((void *) address, &data, datasz) != 0)
- goto transfer_failed;
- if (pop->params[1] & 0x1000000)
- *postinc += inc;
- }
-
- tmp = format_tbl[pop->format].opsz + format_tbl[pop->format].dispsz;
- regs->pc += tmp >> 3;
-
- /* handle MOV_Lcc, which are currently the only FMT_D10 insns that
- * access memory */
- if (pop->format == FMT_D10)
- misalignment_MOV_Lcc(regs, opcode);
-
- set_fs(seg);
-}
-
-/*
- * determine the address that was being accessed
- */
-static int misalignment_addr(unsigned long *registers, unsigned long sp,
- unsigned params, unsigned opcode,
- unsigned long disp,
- void **_address, unsigned long **_postinc,
- unsigned long *_inc)
-{
- unsigned long *postinc = NULL, address = 0, tmp;
-
- if (!(params & 0x1000000)) {
- kdebug("noinc");
- *_inc = 0;
- _inc = NULL;
- }
-
- params &= 0x00ffffff;
-
- do {
- switch (params & 0xff) {
- case DM0:
- postinc = ®isters[Dreg_index[opcode & 0x03]];
- address += *postinc;
- break;
- case DM1:
- postinc = ®isters[Dreg_index[opcode >> 2 & 0x03]];
- address += *postinc;
- break;
- case DM2:
- postinc = ®isters[Dreg_index[opcode >> 4 & 0x03]];
- address += *postinc;
- break;
- case AM0:
- postinc = ®isters[Areg_index[opcode & 0x03]];
- address += *postinc;
- break;
- case AM1:
- postinc = ®isters[Areg_index[opcode >> 2 & 0x03]];
- address += *postinc;
- break;
- case AM2:
- postinc = ®isters[Areg_index[opcode >> 4 & 0x03]];
- address += *postinc;
- break;
- case RM0:
- postinc = ®isters[Rreg_index[opcode & 0x0f]];
- address += *postinc;
- break;
- case RM1:
- postinc = ®isters[Rreg_index[opcode >> 2 & 0x0f]];
- address += *postinc;
- break;
- case RM2:
- postinc = ®isters[Rreg_index[opcode >> 4 & 0x0f]];
- address += *postinc;
- break;
- case RM4:
- postinc = ®isters[Rreg_index[opcode >> 8 & 0x0f]];
- address += *postinc;
- break;
- case RM6:
- postinc = ®isters[Rreg_index[opcode >> 12 & 0x0f]];
- address += *postinc;
- break;
- case RD0:
- postinc = ®isters[Rreg_index[disp & 0x0f]];
- address += *postinc;
- break;
- case RD2:
- postinc = ®isters[Rreg_index[disp >> 4 & 0x0f]];
- address += *postinc;
- break;
- case SP:
- address += sp;
- break;
-
- /* displacements are either to be added to the address
- * before use, or, in the case of post-inc addressing,
- * to be added into the base register after use */
- case SD8:
- case SIMM8:
- disp = (long) (int8_t) (disp & 0xff);
- goto displace_or_inc;
- case SD16:
- disp = (long) (int16_t) (disp & 0xffff);
- goto displace_or_inc;
- case SD24:
- tmp = disp << 8;
- asm("asr 8,%0" : "=r"(tmp) : "0"(tmp) : "cc");
- disp = (long) tmp;
- goto displace_or_inc;
- case SIMM4_2:
- tmp = opcode >> 4 & 0x0f;
- tmp <<= 28;
- asm("asr 28,%0" : "=r"(tmp) : "0"(tmp) : "cc");
- disp = (long) tmp;
- goto displace_or_inc;
- case IMM8:
- disp &= 0x000000ff;
- goto displace_or_inc;
- case IMM16:
- disp &= 0x0000ffff;
- goto displace_or_inc;
- case IMM24:
- disp &= 0x00ffffff;
- goto displace_or_inc;
- case IMM32:
- case IMM32_MEM:
- case IMM32_HIGH8:
- case IMM32_HIGH8_MEM:
- displace_or_inc:
- kdebug("%s %lx", _inc ? "incr" : "disp", disp);
- if (!_inc)
- address += disp;
- else
- *_inc = disp;
- break;
- default:
- BUG();
- return 0;
- }
- } while ((params >>= 8));
-
- *_address = (void *) address;
- *_postinc = postinc;
- return 1;
-}
-
-/*
- * determine the register that is acting as source/dest
- */
-static int misalignment_reg(unsigned long *registers, unsigned params,
- unsigned opcode, unsigned long disp,
- unsigned long **_register)
-{
- params &= 0x7fffffff;
-
- if (params & 0xffffff00)
- return 0;
-
- switch (params & 0xff) {
- case DM0:
- *_register = ®isters[Dreg_index[opcode & 0x03]];
- break;
- case DM1:
- *_register = ®isters[Dreg_index[opcode >> 2 & 0x03]];
- break;
- case DM2:
- *_register = ®isters[Dreg_index[opcode >> 4 & 0x03]];
- break;
- case AM0:
- *_register = ®isters[Areg_index[opcode & 0x03]];
- break;
- case AM1:
- *_register = ®isters[Areg_index[opcode >> 2 & 0x03]];
- break;
- case AM2:
- *_register = ®isters[Areg_index[opcode >> 4 & 0x03]];
- break;
- case RM0:
- *_register = ®isters[Rreg_index[opcode & 0x0f]];
- break;
- case RM1:
- *_register = ®isters[Rreg_index[opcode >> 2 & 0x0f]];
- break;
- case RM2:
- *_register = ®isters[Rreg_index[opcode >> 4 & 0x0f]];
- break;
- case RM4:
- *_register = ®isters[Rreg_index[opcode >> 8 & 0x0f]];
- break;
- case RM6:
- *_register = ®isters[Rreg_index[opcode >> 12 & 0x0f]];
- break;
- case RD0:
- *_register = ®isters[Rreg_index[disp & 0x0f]];
- break;
- case RD2:
- *_register = ®isters[Rreg_index[disp >> 4 & 0x0f]];
- break;
- case SP:
- *_register = ®isters[REG_SP >> 2];
- break;
-
- default:
- BUG();
- return 0;
- }
-
- return 1;
-}
-
-/*
- * handle the conditional loop part of the move-and-loop instructions
- */
-static void misalignment_MOV_Lcc(struct pt_regs *regs, uint32_t opcode)
-{
- unsigned long epsw = regs->epsw;
- unsigned long NxorV;
-
- kdebug("MOV_Lcc %x [flags=%lx]", opcode, epsw & 0xf);
-
- /* calculate N^V and shift onto the same bit position as Z */
- NxorV = ((epsw >> 3) ^ epsw >> 1) & 1;
-
- switch (opcode & 0xf) {
- case 0x0: /* MOV_LLT: N^V */
- if (NxorV)
- goto take_the_loop;
- return;
- case 0x1: /* MOV_LGT: ~(Z or (N^V))*/
- if (!((epsw & EPSW_FLAG_Z) | NxorV))
- goto take_the_loop;
- return;
- case 0x2: /* MOV_LGE: ~(N^V) */
- if (!NxorV)
- goto take_the_loop;
- return;
- case 0x3: /* MOV_LLE: Z or (N^V) */
- if ((epsw & EPSW_FLAG_Z) | NxorV)
- goto take_the_loop;
- return;
-
- case 0x4: /* MOV_LCS: C */
- if (epsw & EPSW_FLAG_C)
- goto take_the_loop;
- return;
- case 0x5: /* MOV_LHI: ~(C or Z) */
- if (!(epsw & (EPSW_FLAG_C | EPSW_FLAG_Z)))
- goto take_the_loop;
- return;
- case 0x6: /* MOV_LCC: ~C */
- if (!(epsw & EPSW_FLAG_C))
- goto take_the_loop;
- return;
- case 0x7: /* MOV_LLS: C or Z */
- if (epsw & (EPSW_FLAG_C | EPSW_FLAG_Z))
- goto take_the_loop;
- return;
-
- case 0x8: /* MOV_LEQ: Z */
- if (epsw & EPSW_FLAG_Z)
- goto take_the_loop;
- return;
- case 0x9: /* MOV_LNE: ~Z */
- if (!(epsw & EPSW_FLAG_Z))
- goto take_the_loop;
- return;
- case 0xa: /* MOV_LRA: always */
- goto take_the_loop;
-
- default:
- BUG();
- }
-
-take_the_loop:
- /* wind the PC back to just after the SETLB insn */
- kdebug("loop LAR=%lx", regs->lar);
- regs->pc = regs->lar - 4;
-}
-
-/*
- * misalignment handler tests
- */
-#ifdef CONFIG_TEST_MISALIGNMENT_HANDLER
-static u8 __initdata testbuf[512] __attribute__((aligned(16))) = {
- [257] = 0x11,
- [258] = 0x22,
- [259] = 0x33,
- [260] = 0x44,
-};
-
-#define ASSERTCMP(X, OP, Y) \
-do { \
- if (unlikely(!((X) OP (Y)))) { \
- printk(KERN_ERR "\n"); \
- printk(KERN_ERR "MISALIGN: Assertion failed at line %u\n", \
- __LINE__); \
- printk(KERN_ERR "0x%lx " #OP " 0x%lx is false\n", \
- (unsigned long)(X), (unsigned long)(Y)); \
- BUG(); \
- } \
-} while(0)
-
-static int __init test_misalignment(void)
-{
- register void *r asm("e0");
- register u32 y asm("e1");
- void *p = testbuf, *q;
- u32 tmp, tmp2, x;
-
- printk(KERN_NOTICE "==>test_misalignment() [testbuf=%p]\n", p);
- p++;
-
- printk(KERN_NOTICE "___ MOV (Am),Dn ___\n");
- q = p + 256;
- asm volatile("mov (%0),%1" : "+a"(q), "=d"(x));
- ASSERTCMP(q, ==, p + 256);
- ASSERTCMP(x, ==, 0x44332211);
-
- printk(KERN_NOTICE "___ MOV (256,Am),Dn ___\n");
- q = p;
- asm volatile("mov (256,%0),%1" : "+a"(q), "=d"(x));
- ASSERTCMP(q, ==, p);
- ASSERTCMP(x, ==, 0x44332211);
-
- printk(KERN_NOTICE "___ MOV (Di,Am),Dn ___\n");
- tmp = 256;
- q = p;
- asm volatile("mov (%2,%0),%1" : "+a"(q), "=d"(x), "+d"(tmp));
- ASSERTCMP(q, ==, p);
- ASSERTCMP(x, ==, 0x44332211);
- ASSERTCMP(tmp, ==, 256);
-
- printk(KERN_NOTICE "___ MOV (256,Rm),Rn ___\n");
- r = p;
- asm volatile("mov (256,%0),%1" : "+r"(r), "=r"(y));
- ASSERTCMP(r, ==, p);
- ASSERTCMP(y, ==, 0x44332211);
-
- printk(KERN_NOTICE "___ MOV (Rm+),Rn ___\n");
- r = p + 256;
- asm volatile("mov (%0+),%1" : "+r"(r), "=r"(y));
- ASSERTCMP(r, ==, p + 256 + 4);
- ASSERTCMP(y, ==, 0x44332211);
-
- printk(KERN_NOTICE "___ MOV (Rm+,8),Rn ___\n");
- r = p + 256;
- asm volatile("mov (%0+,8),%1" : "+r"(r), "=r"(y));
- ASSERTCMP(r, ==, p + 256 + 8);
- ASSERTCMP(y, ==, 0x44332211);
-
- printk(KERN_NOTICE "___ MOV (7,SP),Rn ___\n");
- asm volatile(
- "add -16,sp \n"
- "mov +0x11,%0 \n"
- "movbu %0,(7,sp) \n"
- "mov +0x22,%0 \n"
- "movbu %0,(8,sp) \n"
- "mov +0x33,%0 \n"
- "movbu %0,(9,sp) \n"
- "mov +0x44,%0 \n"
- "movbu %0,(10,sp) \n"
- "mov (7,sp),%1 \n"
- "add +16,sp \n"
- : "+a"(q), "=d"(x));
- ASSERTCMP(x, ==, 0x44332211);
-
- printk(KERN_NOTICE "___ MOV (259,SP),Rn ___\n");
- asm volatile(
- "add -264,sp \n"
- "mov +0x11,%0 \n"
- "movbu %0,(259,sp) \n"
- "mov +0x22,%0 \n"
- "movbu %0,(260,sp) \n"
- "mov +0x33,%0 \n"
- "movbu %0,(261,sp) \n"
- "mov +0x55,%0 \n"
- "movbu %0,(262,sp) \n"
- "mov (259,sp),%1 \n"
- "add +264,sp \n"
- : "+d"(tmp), "=d"(x));
- ASSERTCMP(x, ==, 0x55332211);
-
- printk(KERN_NOTICE "___ MOV (260,SP),Rn ___\n");
- asm volatile(
- "add -264,sp \n"
- "mov +0x11,%0 \n"
- "movbu %0,(260,sp) \n"
- "mov +0x22,%0 \n"
- "movbu %0,(261,sp) \n"
- "mov +0x33,%0 \n"
- "movbu %0,(262,sp) \n"
- "mov +0x55,%0 \n"
- "movbu %0,(263,sp) \n"
- "mov (260,sp),%1 \n"
- "add +264,sp \n"
- : "+d"(tmp), "=d"(x));
- ASSERTCMP(x, ==, 0x55332211);
-
-
- printk(KERN_NOTICE "___ MOV_LNE ___\n");
- tmp = 1;
- tmp2 = 2;
- q = p + 256;
- asm volatile(
- "setlb \n"
- "mov %2,%3 \n"
- "mov %1,%2 \n"
- "cmp +0,%1 \n"
- "mov_lne (%0+,4),%1"
- : "+r"(q), "+d"(tmp), "+d"(tmp2), "=d"(x)
- :
- : "cc");
- ASSERTCMP(q, ==, p + 256 + 12);
- ASSERTCMP(x, ==, 0x44332211);
-
- printk(KERN_NOTICE "___ MOV in SETLB ___\n");
- tmp = 1;
- tmp2 = 2;
- q = p + 256;
- asm volatile(
- "setlb \n"
- "mov %1,%3 \n"
- "mov (%0+),%1 \n"
- "cmp +0,%1 \n"
- "lne "
- : "+a"(q), "+d"(tmp), "+d"(tmp2), "=d"(x)
- :
- : "cc");
-
- ASSERTCMP(q, ==, p + 256 + 8);
- ASSERTCMP(x, ==, 0x44332211);
-
- printk(KERN_NOTICE "<==test_misalignment()\n");
- return 0;
-}
-
-arch_initcall(test_misalignment);
-
-#endif /* CONFIG_TEST_MISALIGNMENT_HANDLER */
+++ /dev/null
-/* MN10300 MMU context allocation and management
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <asm/mmu_context.h>
-#include <asm/tlbflush.h>
-
-#ifdef CONFIG_MN10300_TLB_USE_PIDR
-/*
- * list of the MMU contexts last allocated on each CPU
- */
-unsigned long mmu_context_cache[NR_CPUS] = {
- [0 ... NR_CPUS - 1] =
- MMU_CONTEXT_FIRST_VERSION * 2 - (1 - MMU_CONTEXT_TLBPID_LOCK_NR),
-};
-#endif /* CONFIG_MN10300_TLB_USE_PIDR */
-
-/*
- * preemptively set a TLB entry
- */
-void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
-{
- unsigned long pteu, ptel, cnx, flags;
- pte_t pte = *ptep;
-
- addr &= PAGE_MASK;
- ptel = pte_val(pte) & ~(xPTEL_UNUSED1 | xPTEL_UNUSED2);
-
- /* make sure the context doesn't migrate and defend against
- * interference from vmalloc'd regions */
- local_irq_save(flags);
-
- cnx = ~MMU_NO_CONTEXT;
-#ifdef CONFIG_MN10300_TLB_USE_PIDR
- cnx = mm_context(vma->vm_mm);
-#endif
-
- if (cnx != MMU_NO_CONTEXT) {
- pteu = addr;
-#ifdef CONFIG_MN10300_TLB_USE_PIDR
- pteu |= cnx & MMU_CONTEXT_TLBPID_MASK;
-#endif
- if (!(pte_val(pte) & _PAGE_NX)) {
- IPTEU = pteu;
- if (IPTEL & xPTEL_V)
- IPTEL = ptel;
- }
- DPTEU = pteu;
- if (DPTEL & xPTEL_V)
- DPTEL = ptel;
- }
-
- local_irq_restore(flags);
-}
+++ /dev/null
-/* MN10300 Page table management
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Modified by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/gfp.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/smp.h>
-#include <linux/highmem.h>
-#include <linux/pagemap.h>
-#include <linux/spinlock.h>
-#include <linux/quicklist.h>
-
-#include <asm/pgtable.h>
-#include <asm/pgalloc.h>
-#include <asm/tlb.h>
-#include <asm/tlbflush.h>
-
-/*
- * Associate a large virtual page frame with a given physical page frame
- * and protection flags for that frame. pfn is for the base of the page,
- * vaddr is what the page gets mapped to - both must be properly aligned.
- * The pmd must already be instantiated. Assumes PAE mode.
- */
-void set_pmd_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags)
-{
- pgd_t *pgd;
- pud_t *pud;
- pmd_t *pmd;
-
- if (vaddr & (PMD_SIZE-1)) { /* vaddr is misaligned */
- printk(KERN_ERR "set_pmd_pfn: vaddr misaligned\n");
- return; /* BUG(); */
- }
- if (pfn & (PTRS_PER_PTE-1)) { /* pfn is misaligned */
- printk(KERN_ERR "set_pmd_pfn: pfn misaligned\n");
- return; /* BUG(); */
- }
- pgd = swapper_pg_dir + pgd_index(vaddr);
- if (pgd_none(*pgd)) {
- printk(KERN_ERR "set_pmd_pfn: pgd_none\n");
- return; /* BUG(); */
- }
- pud = pud_offset(pgd, vaddr);
- pmd = pmd_offset(pud, vaddr);
- set_pmd(pmd, pfn_pmd(pfn, flags));
- /*
- * It's enough to flush this one mapping.
- * (PGE mappings get flushed as well)
- */
- local_flush_tlb_one(vaddr);
-}
-
-pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
-{
- pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL);
- if (pte)
- clear_page(pte);
- return pte;
-}
-
-struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
-{
- struct page *pte;
-
-#ifdef CONFIG_HIGHPTE
- pte = alloc_pages(GFP_KERNEL|__GFP_HIGHMEM, 0);
-#else
- pte = alloc_pages(GFP_KERNEL, 0);
-#endif
- if (!pte)
- return NULL;
- clear_highpage(pte);
- if (!pgtable_page_ctor(pte)) {
- __free_page(pte);
- return NULL;
- }
- return pte;
-}
-
-/*
- * List of all pgd's needed for non-PAE so it can invalidate entries
- * in both cached and uncached pgd's; not needed for PAE since the
- * kernel pmd is shared. If PAE were not to share the pmd a similar
- * tactic would be needed. This is essentially codepath-based locking
- * against pageattr.c; it is the unique case in which a valid change
- * of kernel pagetables can't be lazily synchronized by vmalloc faults.
- * vmalloc faults work because attached pagetables are never freed.
- * If the locking proves to be non-performant, a ticketing scheme with
- * checks at dup_mmap(), exec(), and other mmlist addition points
- * could be used. The locking scheme was chosen on the basis of
- * manfred's recommendations and having no core impact whatsoever.
- * -- nyc
- */
-DEFINE_SPINLOCK(pgd_lock);
-struct page *pgd_list;
-
-static inline void pgd_list_add(pgd_t *pgd)
-{
- struct page *page = virt_to_page(pgd);
- page->index = (unsigned long) pgd_list;
- if (pgd_list)
- set_page_private(pgd_list, (unsigned long) &page->index);
- pgd_list = page;
- set_page_private(page, (unsigned long) &pgd_list);
-}
-
-static inline void pgd_list_del(pgd_t *pgd)
-{
- struct page *next, **pprev, *page = virt_to_page(pgd);
- next = (struct page *) page->index;
- pprev = (struct page **) page_private(page);
- *pprev = next;
- if (next)
- set_page_private(next, (unsigned long) pprev);
-}
-
-void pgd_ctor(void *pgd)
-{
- unsigned long flags;
-
- if (PTRS_PER_PMD == 1)
- spin_lock_irqsave(&pgd_lock, flags);
-
- memcpy((pgd_t *)pgd + USER_PTRS_PER_PGD,
- swapper_pg_dir + USER_PTRS_PER_PGD,
- (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
-
- if (PTRS_PER_PMD > 1)
- return;
-
- pgd_list_add(pgd);
- spin_unlock_irqrestore(&pgd_lock, flags);
- memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
-}
-
-/* never called when PTRS_PER_PMD > 1 */
-void pgd_dtor(void *pgd)
-{
- unsigned long flags; /* can be called from interrupt context */
-
- spin_lock_irqsave(&pgd_lock, flags);
- pgd_list_del(pgd);
- spin_unlock_irqrestore(&pgd_lock, flags);
-}
-
-pgd_t *pgd_alloc(struct mm_struct *mm)
-{
- return quicklist_alloc(0, GFP_KERNEL, pgd_ctor);
-}
-
-void pgd_free(struct mm_struct *mm, pgd_t *pgd)
-{
- quicklist_free(0, pgd_dtor, pgd);
-}
-
-void __init pgtable_cache_init(void)
-{
-}
-
-void check_pgt_cache(void)
-{
- quicklist_trim(0, pgd_dtor, 25, 16);
-}
+++ /dev/null
-###############################################################################
-#
-# TLB loading functions
-#
-# Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
-# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
-# Modified by David Howells (dhowells@redhat.com)
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public Licence
-# as published by the Free Software Foundation; either version
-# 2 of the Licence, or (at your option) any later version.
-#
-###############################################################################
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/smp.h>
-#include <asm/intctl-regs.h>
-#include <asm/frame.inc>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-
-###############################################################################
-#
-# Instruction TLB Miss handler entry point
-#
-###############################################################################
- .type itlb_miss,@function
-ENTRY(itlb_miss)
-#ifdef CONFIG_GDBSTUB
- movm [d2,d3,a2],(sp)
-#else
- or EPSW_nAR,epsw # switch D0-D3 & A0-A3 to the alternate
- # register bank
- nop
- nop
- nop
-#endif
-
-#if defined(CONFIG_ERRATUM_NEED_TO_RELOAD_MMUCTR)
- mov (MMUCTR),d2
- mov d2,(MMUCTR)
-#endif
-
- and ~EPSW_NMID,epsw
- mov (IPTEU),d3
- mov (PTBR),a2
- mov d3,d2
- and 0xffc00000,d2
- lsr 20,d2
- mov (a2,d2),a2 # PTD *ptd = PGD[addr 31..22]
- btst _PAGE_VALID,a2
- beq itlb_miss_fault # jump if doesn't point anywhere
-
- and ~(PAGE_SIZE-1),a2
- mov d3,d2
- and 0x003ff000,d2
- lsr 10,d2
- add d2,a2
- mov (a2),d2 # get pte from PTD[addr 21..12]
- btst _PAGE_VALID,d2
- beq itlb_miss_fault # jump if doesn't point to a page
- # (might be a swap id)
-#if ((_PAGE_ACCESSED & 0xffffff00) == 0)
- bset _PAGE_ACCESSED,(0,a2)
-#elif ((_PAGE_ACCESSED & 0xffff00ff) == 0)
- bset +(_PAGE_ACCESSED >> 8),(1,a2)
-#else
-#error "_PAGE_ACCESSED value is out of range"
-#endif
- and ~xPTEL2_UNUSED1,d2
-itlb_miss_set:
- mov d2,(IPTEL2) # change the TLB
-#ifdef CONFIG_GDBSTUB
- movm (sp),[d2,d3,a2]
-#endif
- rti
-
-itlb_miss_fault:
- mov _PAGE_VALID,d2 # force address error handler to be
- # invoked
- bra itlb_miss_set
-
- .size itlb_miss, . - itlb_miss
-
-###############################################################################
-#
-# Data TLB Miss handler entry point
-#
-###############################################################################
- .type dtlb_miss,@function
-ENTRY(dtlb_miss)
-#ifdef CONFIG_GDBSTUB
- movm [d2,d3,a2],(sp)
-#else
- or EPSW_nAR,epsw # switch D0-D3 & A0-A3 to the alternate
- # register bank
- nop
- nop
- nop
-#endif
-
-#if defined(CONFIG_ERRATUM_NEED_TO_RELOAD_MMUCTR)
- mov (MMUCTR),d2
- mov d2,(MMUCTR)
-#endif
-
- and ~EPSW_NMID,epsw
- mov (DPTEU),d3
- mov (PTBR),a2
- mov d3,d2
- and 0xffc00000,d2
- lsr 20,d2
- mov (a2,d2),a2 # PTD *ptd = PGD[addr 31..22]
- btst _PAGE_VALID,a2
- beq dtlb_miss_fault # jump if doesn't point anywhere
-
- and ~(PAGE_SIZE-1),a2
- mov d3,d2
- and 0x003ff000,d2
- lsr 10,d2
- add d2,a2
- mov (a2),d2 # get pte from PTD[addr 21..12]
- btst _PAGE_VALID,d2
- beq dtlb_miss_fault # jump if doesn't point to a page
- # (might be a swap id)
-#if ((_PAGE_ACCESSED & 0xffffff00) == 0)
- bset _PAGE_ACCESSED,(0,a2)
-#elif ((_PAGE_ACCESSED & 0xffff00ff) == 0)
- bset +(_PAGE_ACCESSED >> 8),(1,a2)
-#else
-#error "_PAGE_ACCESSED value is out of range"
-#endif
- and ~xPTEL2_UNUSED1,d2
-dtlb_miss_set:
- mov d2,(DPTEL2) # change the TLB
-#ifdef CONFIG_GDBSTUB
- movm (sp),[d2,d3,a2]
-#endif
- rti
-
-dtlb_miss_fault:
- mov _PAGE_VALID,d2 # force address error handler to be
- # invoked
- bra dtlb_miss_set
- .size dtlb_miss, . - dtlb_miss
-
-###############################################################################
-#
-# Instruction TLB Address Error handler entry point
-#
-###############################################################################
- .type itlb_aerror,@function
-ENTRY(itlb_aerror)
- add -4,sp
- SAVE_ALL
-
-#if defined(CONFIG_ERRATUM_NEED_TO_RELOAD_MMUCTR)
- mov (MMUCTR),d1
- mov d1,(MMUCTR)
-#endif
-
- and ~EPSW_NMID,epsw
- add -4,sp # need to pass three params
-
- # calculate the fault code
- movhu (MMUFCR_IFC),d1
- or 0x00010000,d1 # it's an instruction fetch
-
- # determine the page address
- mov (IPTEU),d0
- and PAGE_MASK,d0
- mov d0,(12,sp)
-
- clr d0
- mov d0,(IPTEL2)
-
- or EPSW_IE,epsw
- mov fp,d0
- call do_page_fault[],0 # do_page_fault(regs,code,addr
-
- jmp ret_from_exception
- .size itlb_aerror, . - itlb_aerror
-
-###############################################################################
-#
-# Data TLB Address Error handler entry point
-#
-###############################################################################
- .type dtlb_aerror,@function
-ENTRY(dtlb_aerror)
- add -4,sp
- SAVE_ALL
-
-#if defined(CONFIG_ERRATUM_NEED_TO_RELOAD_MMUCTR)
- mov (MMUCTR),d1
- mov d1,(MMUCTR)
-#endif
-
- add -4,sp # need to pass three params
- and ~EPSW_NMID,epsw
-
- # calculate the fault code
- movhu (MMUFCR_DFC),d1
-
- # determine the page address
- mov (DPTEU),a2
- mov a2,d0
- and PAGE_MASK,d0
- mov d0,(12,sp)
-
- clr d0
- mov d0,(DPTEL2)
-
- or EPSW_IE,epsw
- mov fp,d0
- call do_page_fault[],0 # do_page_fault(regs,code,addr
-
- jmp ret_from_exception
- .size dtlb_aerror, . - dtlb_aerror
+++ /dev/null
-/* SMP TLB support routines.
- *
- * Copyright (C) 2006-2008 Panasonic Corporation
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/init.h>
-#include <linux/jiffies.h>
-#include <linux/cpumask.h>
-#include <linux/err.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/sched/mm.h>
-#include <linux/profile.h>
-#include <linux/smp.h>
-#include <asm/tlbflush.h>
-#include <asm/bitops.h>
-#include <asm/processor.h>
-#include <asm/bug.h>
-#include <asm/exceptions.h>
-#include <asm/hardirq.h>
-#include <asm/fpu.h>
-#include <asm/mmu_context.h>
-#include <asm/thread_info.h>
-#include <asm/cpu-regs.h>
-#include <asm/intctl-regs.h>
-
-/*
- * For flush TLB
- */
-#define FLUSH_ALL 0xffffffff
-
-static cpumask_t flush_cpumask;
-static struct mm_struct *flush_mm;
-static unsigned long flush_va;
-static DEFINE_SPINLOCK(tlbstate_lock);
-
-DEFINE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate) = {
- &init_mm, 0
-};
-
-static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
- unsigned long va);
-static void do_flush_tlb_all(void *info);
-
-/**
- * smp_flush_tlb - Callback to invalidate the TLB.
- * @unused: Callback context (ignored).
- */
-void smp_flush_tlb(void *unused)
-{
- unsigned long cpu_id;
-
- cpu_id = get_cpu();
-
- if (!cpumask_test_cpu(cpu_id, &flush_cpumask))
- /* This was a BUG() but until someone can quote me the line
- * from the intel manual that guarantees an IPI to multiple
- * CPUs is retried _only_ on the erroring CPUs its staying as a
- * return
- *
- * BUG();
- */
- goto out;
-
- if (flush_va == FLUSH_ALL)
- local_flush_tlb();
- else
- local_flush_tlb_page(flush_mm, flush_va);
-
- smp_mb__before_atomic();
- cpumask_clear_cpu(cpu_id, &flush_cpumask);
- smp_mb__after_atomic();
-out:
- put_cpu();
-}
-
-/**
- * flush_tlb_others - Tell the specified CPUs to invalidate their TLBs
- * @cpumask: The list of CPUs to target.
- * @mm: The VM context to flush from (if va!=FLUSH_ALL).
- * @va: Virtual address to flush or FLUSH_ALL to flush everything.
- */
-static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
- unsigned long va)
-{
- cpumask_t tmp;
-
- /* A couple of sanity checks (to be removed):
- * - mask must not be empty
- * - current CPU must not be in mask
- * - we do not send IPIs to as-yet unbooted CPUs.
- */
- BUG_ON(!mm);
- BUG_ON(cpumask_empty(&cpumask));
- BUG_ON(cpumask_test_cpu(smp_processor_id(), &cpumask));
-
- cpumask_and(&tmp, &cpumask, cpu_online_mask);
- BUG_ON(!cpumask_equal(&cpumask, &tmp));
-
- /* I'm not happy about this global shared spinlock in the MM hot path,
- * but we'll see how contended it is.
- *
- * Temporarily this turns IRQs off, so that lockups are detected by the
- * NMI watchdog.
- */
- spin_lock(&tlbstate_lock);
-
- flush_mm = mm;
- flush_va = va;
-#if NR_CPUS <= BITS_PER_LONG
- atomic_or(cpumask.bits[0], (atomic_t *)&flush_cpumask.bits[0]);
-#else
-#error Not supported.
-#endif
-
- /* FIXME: if NR_CPUS>=3, change send_IPI_mask */
- smp_call_function(smp_flush_tlb, NULL, 1);
-
- while (!cpumask_empty(&flush_cpumask))
- /* Lockup detection does not belong here */
- smp_mb();
-
- flush_mm = NULL;
- flush_va = 0;
- spin_unlock(&tlbstate_lock);
-}
-
-/**
- * flush_tlb_mm - Invalidate TLB of specified VM context
- * @mm: The VM context to invalidate.
- */
-void flush_tlb_mm(struct mm_struct *mm)
-{
- cpumask_t cpu_mask;
-
- preempt_disable();
- cpumask_copy(&cpu_mask, mm_cpumask(mm));
- cpumask_clear_cpu(smp_processor_id(), &cpu_mask);
-
- local_flush_tlb();
- if (!cpumask_empty(&cpu_mask))
- flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
-
- preempt_enable();
-}
-
-/**
- * flush_tlb_current_task - Invalidate TLB of current task
- */
-void flush_tlb_current_task(void)
-{
- struct mm_struct *mm = current->mm;
- cpumask_t cpu_mask;
-
- preempt_disable();
- cpumask_copy(&cpu_mask, mm_cpumask(mm));
- cpumask_clear_cpu(smp_processor_id(), &cpu_mask);
-
- local_flush_tlb();
- if (!cpumask_empty(&cpu_mask))
- flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
-
- preempt_enable();
-}
-
-/**
- * flush_tlb_page - Invalidate TLB of page
- * @vma: The VM context to invalidate the page for.
- * @va: The virtual address of the page to invalidate.
- */
-void flush_tlb_page(struct vm_area_struct *vma, unsigned long va)
-{
- struct mm_struct *mm = vma->vm_mm;
- cpumask_t cpu_mask;
-
- preempt_disable();
- cpumask_copy(&cpu_mask, mm_cpumask(mm));
- cpumask_clear_cpu(smp_processor_id(), &cpu_mask);
-
- local_flush_tlb_page(mm, va);
- if (!cpumask_empty(&cpu_mask))
- flush_tlb_others(cpu_mask, mm, va);
-
- preempt_enable();
-}
-
-/**
- * do_flush_tlb_all - Callback to completely invalidate a TLB
- * @unused: Callback context (ignored).
- */
-static void do_flush_tlb_all(void *unused)
-{
- local_flush_tlb_all();
-}
-
-/**
- * flush_tlb_all - Completely invalidate TLBs on all CPUs
- */
-void flush_tlb_all(void)
-{
- on_each_cpu(do_flush_tlb_all, 0, 1);
-}
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0
-#
-# Makefile for the MN10300-specific profiling code
-#
-obj-$(CONFIG_OPROFILE) += oprofile.o
-
-DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
- oprof.o cpu_buffer.o buffer_sync.o \
- event_buffer.o oprofile_files.o \
- oprofilefs.o oprofile_stats.o \
- timer_int.o )
-
-oprofile-y := $(DRIVER_OBJS) op_model_null.o
-
+++ /dev/null
-/* Null profiling driver
- *
- * Copyright (C) 2003 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * Licence. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/kernel.h>
-#include <linux/oprofile.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-
-int __init oprofile_arch_init(struct oprofile_operations *ops)
-{
- return -ENODEV;
-}
-
-void oprofile_arch_exit(void)
-{
-}
-
+++ /dev/null
-#
-# Makefile for the MN103E010 processor chip specific code
-#
-obj-y := proc-init.o
-
+++ /dev/null
-/* MN103E010 Cache specification
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_PROC_CACHE_H
-#define _ASM_PROC_CACHE_H
-
-/* L1 cache */
-
-#define L1_CACHE_NWAYS 4 /* number of ways in caches */
-#define L1_CACHE_NENTRIES 256 /* number of entries in each way */
-#define L1_CACHE_BYTES 16 /* bytes per entry */
-#define L1_CACHE_SHIFT 4 /* shift for bytes per entry */
-#define L1_CACHE_WAYDISP 0x1000 /* displacement of one way from the next */
-
-#define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */
-#define L1_CACHE_TAG_DIRTY 0x00000008 /* data cache tag dirty bit */
-#define L1_CACHE_TAG_ENTRY 0x00000ff0 /* cache tag entry address mask */
-#define L1_CACHE_TAG_ADDRESS 0xfffff000 /* cache tag line address mask */
-#define L1_CACHE_TAG_MASK +(L1_CACHE_TAG_ADDRESS|L1_CACHE_TAG_ENTRY)
-
-/*
- * specification of the interval between interrupt checking intervals whilst
- * managing the cache with the interrupts disabled
- */
-#define MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL 4
-
-/*
- * The size of range at which it becomes more economical to just flush the
- * whole cache rather than trying to flush the specified range.
- */
-#define MN10300_DCACHE_FLUSH_BORDER \
- +(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES)
-#define MN10300_DCACHE_FLUSH_INV_BORDER \
- +(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES)
-
-#endif /* _ASM_PROC_CACHE_H */
+++ /dev/null
-/* MN103E010-specific clocks
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_PROC_CLOCK_H
-#define _ASM_PROC_CLOCK_H
-
-#include <unit/clock.h>
-
-#endif /* _ASM_PROC_CLOCK_H */
+++ /dev/null
-/* MN103E010 on-board DMA controller registers
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_PROC_DMACTL_REGS_H
-#define _ASM_PROC_DMACTL_REGS_H
-
-#include <asm/cpu-regs.h>
-
-#ifdef __KERNEL__
-
-/* DMA registers */
-#define DMxCTR(N) __SYSREG(0xd2000000 + ((N) * 0x100), u32) /* control reg */
-#define DMxCTR_BG 0x0000001f /* transfer request source */
-#define DMxCTR_BG_SOFT 0x00000000 /* - software source */
-#define DMxCTR_BG_SC0TX 0x00000002 /* - serial port 0 transmission */
-#define DMxCTR_BG_SC0RX 0x00000003 /* - serial port 0 reception */
-#define DMxCTR_BG_SC1TX 0x00000004 /* - serial port 1 transmission */
-#define DMxCTR_BG_SC1RX 0x00000005 /* - serial port 1 reception */
-#define DMxCTR_BG_SC2TX 0x00000006 /* - serial port 2 transmission */
-#define DMxCTR_BG_SC2RX 0x00000007 /* - serial port 2 reception */
-#define DMxCTR_BG_TM0UFLOW 0x00000008 /* - timer 0 underflow */
-#define DMxCTR_BG_TM1UFLOW 0x00000009 /* - timer 1 underflow */
-#define DMxCTR_BG_TM2UFLOW 0x0000000a /* - timer 2 underflow */
-#define DMxCTR_BG_TM3UFLOW 0x0000000b /* - timer 3 underflow */
-#define DMxCTR_BG_TM6ACMPCAP 0x0000000c /* - timer 6A compare/capture */
-#define DMxCTR_BG_AFE 0x0000000d /* - analogue front-end interrupt source */
-#define DMxCTR_BG_ADC 0x0000000e /* - A/D conversion end interrupt source */
-#define DMxCTR_BG_IRDA 0x0000000f /* - IrDA interrupt source */
-#define DMxCTR_BG_RTC 0x00000010 /* - RTC interrupt source */
-#define DMxCTR_BG_XIRQ0 0x00000011 /* - XIRQ0 pin interrupt source */
-#define DMxCTR_BG_XIRQ1 0x00000012 /* - XIRQ1 pin interrupt source */
-#define DMxCTR_BG_XDMR0 0x00000013 /* - external request 0 source (XDMR0 pin) */
-#define DMxCTR_BG_XDMR1 0x00000014 /* - external request 1 source (XDMR1 pin) */
-#define DMxCTR_SAM 0x000000e0 /* DMA transfer src addr mode */
-#define DMxCTR_SAM_INCR 0x00000000 /* - increment */
-#define DMxCTR_SAM_DECR 0x00000020 /* - decrement */
-#define DMxCTR_SAM_FIXED 0x00000040 /* - fixed */
-#define DMxCTR_DAM 0x00000000 /* DMA transfer dest addr mode */
-#define DMxCTR_DAM_INCR 0x00000000 /* - increment */
-#define DMxCTR_DAM_DECR 0x00000100 /* - decrement */
-#define DMxCTR_DAM_FIXED 0x00000200 /* - fixed */
-#define DMxCTR_TM 0x00001800 /* DMA transfer mode */
-#define DMxCTR_TM_BATCH 0x00000000 /* - batch transfer */
-#define DMxCTR_TM_INTERM 0x00001000 /* - intermittent transfer */
-#define DMxCTR_UT 0x00006000 /* DMA transfer unit */
-#define DMxCTR_UT_1 0x00000000 /* - 1 byte */
-#define DMxCTR_UT_2 0x00002000 /* - 2 byte */
-#define DMxCTR_UT_4 0x00004000 /* - 4 byte */
-#define DMxCTR_UT_16 0x00006000 /* - 16 byte */
-#define DMxCTR_TEN 0x00010000 /* DMA channel transfer enable */
-#define DMxCTR_RQM 0x00060000 /* external request input source mode */
-#define DMxCTR_RQM_FALLEDGE 0x00000000 /* - falling edge */
-#define DMxCTR_RQM_RISEEDGE 0x00020000 /* - rising edge */
-#define DMxCTR_RQM_LOLEVEL 0x00040000 /* - low level */
-#define DMxCTR_RQM_HILEVEL 0x00060000 /* - high level */
-#define DMxCTR_RQF 0x01000000 /* DMA transfer request flag */
-#define DMxCTR_XEND 0x80000000 /* DMA transfer end flag */
-
-#define DMxSRC(N) __SYSREG(0xd2000004 + ((N) * 0x100), u32) /* control reg */
-
-#define DMxDST(N) __SYSREG(0xd2000008 + ((N) * 0x100), u32) /* src addr reg */
-
-#define DMxSIZ(N) __SYSREG(0xd200000c + ((N) * 0x100), u32) /* dest addr reg */
-#define DMxSIZ_CT 0x000fffff /* number of bytes to transfer */
-
-#define DMxCYC(N) __SYSREG(0xd2000010 + ((N) * 0x100), u32) /* intermittent
- * size reg */
-#define DMxCYC_CYC 0x000000ff /* number of interrmittent transfers -1 */
-
-#define DM0IRQ 16 /* DMA channel 0 complete IRQ */
-#define DM1IRQ 17 /* DMA channel 1 complete IRQ */
-#define DM2IRQ 18 /* DMA channel 2 complete IRQ */
-#define DM3IRQ 19 /* DMA channel 3 complete IRQ */
-
-#define DM0ICR GxICR(DM0IRQ) /* DMA channel 0 complete intr ctrl reg */
-#define DM1ICR GxICR(DM0IR1) /* DMA channel 1 complete intr ctrl reg */
-#define DM2ICR GxICR(DM0IR2) /* DMA channel 2 complete intr ctrl reg */
-#define DM3ICR GxICR(DM0IR3) /* DMA channel 3 complete intr ctrl reg */
-
-#ifndef __ASSEMBLY__
-
-struct mn10300_dmactl_regs {
- u32 ctr;
- const void *src;
- void *dst;
- u32 siz;
- u32 cyc;
-} __attribute__((aligned(0x100)));
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_PROC_DMACTL_REGS_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_PROC_INTCTL_REGS_H
-#define _ASM_PROC_INTCTL_REGS_H
-
-#ifndef _ASM_INTCTL_REGS_H
-# error "please don't include this file directly"
-#endif
-
-/* intr acceptance group reg */
-#define IAGR __SYSREG(0xd4000100, u16)
-
-/* group number register */
-#define IAGR_GN 0x00fc
-
-#define __GET_XIRQ_TRIGGER(X, Z) (((Z) >> ((X) * 2)) & 3)
-
-#define __SET_XIRQ_TRIGGER(X, Y, Z) \
-({ \
- typeof(Z) x = (Z); \
- x &= ~(3 << ((X) * 2)); \
- x |= ((Y) & 3) << ((X) * 2); \
- (Z) = x; \
-})
-
-/* external pin intr spec reg */
-#define EXTMD __SYSREG(0xd4000200, u16)
-#define GET_XIRQ_TRIGGER(X) __GET_XIRQ_TRIGGER(X, EXTMD)
-#define SET_XIRQ_TRIGGER(X, Y) __SET_XIRQ_TRIGGER(X, Y, EXTMD)
-
-#endif /* _ASM_PROC_INTCTL_REGS_H */
+++ /dev/null
-/* MN103E010 On-board interrupt controller numbers
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_PROC_IRQ_H
-#define _ASM_PROC_IRQ_H
-
-#ifdef __KERNEL__
-
-#define GxICR_NUM_IRQS 42
-
-#define GxICR_NUM_XIRQS 8
-
-#define XIRQ0 34
-#define XIRQ1 35
-#define XIRQ2 36
-#define XIRQ3 37
-#define XIRQ4 38
-#define XIRQ5 39
-#define XIRQ6 40
-#define XIRQ7 41
-
-#define XIRQ2IRQ(num) (XIRQ0 + num)
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_PROC_IRQ_H */
+++ /dev/null
-/* MN103E010 Processor description
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_PROC_PROC_H
-#define _ASM_PROC_PROC_H
-
-#define PROCESSOR_VENDOR_NAME "Panasonic"
-#define PROCESSOR_MODEL_NAME "mn103e010"
-
-#endif /* _ASM_PROC_PROC_H */
+++ /dev/null
-/* MN103E010 Processor initialisation
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/kernel.h>
-#include <linux/irq.h>
-#include <asm/cacheflush.h>
-#include <asm/fpu.h>
-#include <asm/irq.h>
-#include <asm/rtc.h>
-#include <asm/busctl-regs.h>
-
-/*
- * initialise the on-silicon processor peripherals
- */
-asmlinkage void __init processor_init(void)
-{
- int loop;
-
- /* set up the exception table first */
- for (loop = 0x000; loop < 0x400; loop += 8)
- __set_intr_stub(loop, __common_exception);
-
- __set_intr_stub(EXCEP_ITLBMISS, itlb_miss);
- __set_intr_stub(EXCEP_DTLBMISS, dtlb_miss);
- __set_intr_stub(EXCEP_IAERROR, itlb_aerror);
- __set_intr_stub(EXCEP_DAERROR, dtlb_aerror);
- __set_intr_stub(EXCEP_BUSERROR, raw_bus_error);
- __set_intr_stub(EXCEP_DOUBLE_FAULT, double_fault);
- __set_intr_stub(EXCEP_FPU_DISABLED, fpu_disabled);
- __set_intr_stub(EXCEP_SYSCALL0, system_call);
-
- __set_intr_stub(EXCEP_NMI, nmi_handler);
- __set_intr_stub(EXCEP_WDT, nmi_handler);
- __set_intr_stub(EXCEP_IRQ_LEVEL0, irq_handler);
- __set_intr_stub(EXCEP_IRQ_LEVEL1, irq_handler);
- __set_intr_stub(EXCEP_IRQ_LEVEL2, irq_handler);
- __set_intr_stub(EXCEP_IRQ_LEVEL3, irq_handler);
- __set_intr_stub(EXCEP_IRQ_LEVEL4, irq_handler);
- __set_intr_stub(EXCEP_IRQ_LEVEL5, irq_handler);
- __set_intr_stub(EXCEP_IRQ_LEVEL6, irq_handler);
-
- IVAR0 = EXCEP_IRQ_LEVEL0;
- IVAR1 = EXCEP_IRQ_LEVEL1;
- IVAR2 = EXCEP_IRQ_LEVEL2;
- IVAR3 = EXCEP_IRQ_LEVEL3;
- IVAR4 = EXCEP_IRQ_LEVEL4;
- IVAR5 = EXCEP_IRQ_LEVEL5;
- IVAR6 = EXCEP_IRQ_LEVEL6;
-
- mn10300_dcache_flush_inv();
- mn10300_icache_inv();
-
- /* disable all interrupts and set to priority 6 (lowest) */
- for (loop = 0; loop < NR_IRQS; loop++)
- GxICR(loop) = GxICR_LEVEL_6 | GxICR_DETECT;
-
- /* clear the timers */
- TM0MD = 0;
- TM1MD = 0;
- TM2MD = 0;
- TM3MD = 0;
- TM4MD = 0;
- TM5MD = 0;
- TM6MD = 0;
- TM6MDA = 0;
- TM6MDB = 0;
- TM7MD = 0;
- TM8MD = 0;
- TM9MD = 0;
- TM10MD = 0;
- TM11MD = 0;
-
- calibrate_clock();
-}
-
-/*
- * determine the memory size and base from the memory controller regs
- */
-void __init get_mem_info(unsigned long *mem_base, unsigned long *mem_size)
-{
- unsigned long base, size;
-
- *mem_base = 0;
- *mem_size = 0;
-
- base = SDBASE(0);
- if (base & SDBASE_CE) {
- size = (base & SDBASE_CBAM) << SDBASE_CBAM_SHIFT;
- size = ~size + 1;
- base &= SDBASE_CBA;
-
- printk(KERN_INFO "SDRAM[0]: %luMb @%08lx\n", size >> 20, base);
- *mem_size += size;
- *mem_base = base;
- }
-
- base = SDBASE(1);
- if (base & SDBASE_CE) {
- size = (base & SDBASE_CBAM) << SDBASE_CBAM_SHIFT;
- size = ~size + 1;
- base &= SDBASE_CBA;
-
- printk(KERN_INFO "SDRAM[1]: %luMb @%08lx\n", size >> 20, base);
- *mem_size += size;
- if (*mem_base == 0)
- *mem_base = base;
- }
-}
+++ /dev/null
-#
-# Makefile for the linux kernel.
-#
-
-obj-y := proc-init.o
+++ /dev/null
-/* Cache specification
- *
- * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * Modified by Matsushita Electric Industrial Co., Ltd.
- * Modifications:
- * 13-Nov-2006 MEI Add L1_CACHE_SHIFT_MAX definition.
- * 29-Jul-2008 MEI Add define for MN10300_HAS_AREAPURGE_REG.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#ifndef _ASM_PROC_CACHE_H
-#define _ASM_PROC_CACHE_H
-
-/*
- * L1 cache
- */
-#define L1_CACHE_NWAYS 4 /* number of ways in caches */
-#define L1_CACHE_NENTRIES 128 /* number of entries in each way */
-#define L1_CACHE_BYTES 32 /* bytes per entry */
-#define L1_CACHE_SHIFT 5 /* shift for bytes per entry */
-#define L1_CACHE_WAYDISP 0x1000 /* distance from one way to the next */
-
-#define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */
-#define L1_CACHE_TAG_DIRTY 0x00000008 /* data cache tag dirty bit */
-#define L1_CACHE_TAG_ENTRY 0x00000fe0 /* cache tag entry address mask */
-#define L1_CACHE_TAG_ADDRESS 0xfffff000 /* cache tag line address mask */
-#define L1_CACHE_TAG_MASK +(L1_CACHE_TAG_ADDRESS|L1_CACHE_TAG_ENTRY)
-
-/*
- * specification of the interval between interrupt checking intervals whilst
- * managing the cache with the interrupts disabled
- */
-#define MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL 4
-
-/*
- * The size of range at which it becomes more economical to just flush the
- * whole cache rather than trying to flush the specified range.
- */
-#define MN10300_DCACHE_FLUSH_BORDER \
- +(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES)
-#define MN10300_DCACHE_FLUSH_INV_BORDER \
- +(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES)
-
-#endif /* _ASM_PROC_CACHE_H */
+++ /dev/null
-/* clock.h: proc-specific clocks
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * Modified by Matsushita Electric Industrial Co., Ltd.
- * Modifications:
- * 23-Feb-2007 MEI Delete define for watchdog timer.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#ifndef _ASM_PROC_CLOCK_H
-#define _ASM_PROC_CLOCK_H
-
-#include <unit/clock.h>
-
-#endif /* _ASM_PROC_CLOCK_H */
+++ /dev/null
-/* MN2WS0050 on-board DMA controller registers
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- */
-
-#ifndef _ASM_PROC_DMACTL_REGS_H
-#define _ASM_PROC_DMACTL_REGS_H
-
-#include <asm/cpu-regs.h>
-
-#ifdef __KERNEL__
-
-/* DMA registers */
-#define DMxCTR(N) __SYSREG(0xd4005000+(N*0x100), u32) /* control reg */
-#define DMxCTR_BG 0x0000001f /* transfer request source */
-#define DMxCTR_BG_SOFT 0x00000000 /* - software source */
-#define DMxCTR_BG_SC0TX 0x00000002 /* - serial port 0 transmission */
-#define DMxCTR_BG_SC0RX 0x00000003 /* - serial port 0 reception */
-#define DMxCTR_BG_SC1TX 0x00000004 /* - serial port 1 transmission */
-#define DMxCTR_BG_SC1RX 0x00000005 /* - serial port 1 reception */
-#define DMxCTR_BG_SC2TX 0x00000006 /* - serial port 2 transmission */
-#define DMxCTR_BG_SC2RX 0x00000007 /* - serial port 2 reception */
-#define DMxCTR_BG_TM0UFLOW 0x00000008 /* - timer 0 underflow */
-#define DMxCTR_BG_TM1UFLOW 0x00000009 /* - timer 1 underflow */
-#define DMxCTR_BG_TM2UFLOW 0x0000000a /* - timer 2 underflow */
-#define DMxCTR_BG_TM3UFLOW 0x0000000b /* - timer 3 underflow */
-#define DMxCTR_BG_TM6ACMPCAP 0x0000000c /* - timer 6A compare/capture */
-#define DMxCTR_BG_RYBY 0x0000000d /* - NAND Flash RY/BY request source */
-#define DMxCTR_BG_RMC 0x0000000e /* - remote controller output */
-#define DMxCTR_BG_XIRQ12 0x00000011 /* - XIRQ12 pin interrupt source */
-#define DMxCTR_BG_XIRQ13 0x00000012 /* - XIRQ13 pin interrupt source */
-#define DMxCTR_BG_TCK 0x00000014 /* - tick timer underflow */
-#define DMxCTR_BG_SC4TX 0x00000019 /* - serial port4 transmission */
-#define DMxCTR_BG_SC4RX 0x0000001a /* - serial port4 reception */
-#define DMxCTR_BG_SC5TX 0x0000001b /* - serial port5 transmission */
-#define DMxCTR_BG_SC5RX 0x0000001c /* - serial port5 reception */
-#define DMxCTR_BG_SC6TX 0x0000001d /* - serial port6 transmission */
-#define DMxCTR_BG_SC6RX 0x0000001e /* - serial port6 reception */
-#define DMxCTR_BG_TMSUFLOW 0x0000001f /* - timestamp timer underflow */
-#define DMxCTR_SAM 0x00000060 /* DMA transfer src addr mode */
-#define DMxCTR_SAM_INCR 0x00000000 /* - increment */
-#define DMxCTR_SAM_DECR 0x00000020 /* - decrement */
-#define DMxCTR_SAM_FIXED 0x00000040 /* - fixed */
-#define DMxCTR_DAM 0x00000300 /* DMA transfer dest addr mode */
-#define DMxCTR_DAM_INCR 0x00000000 /* - increment */
-#define DMxCTR_DAM_DECR 0x00000100 /* - decrement */
-#define DMxCTR_DAM_FIXED 0x00000200 /* - fixed */
-#define DMxCTR_UT 0x00006000 /* DMA transfer unit */
-#define DMxCTR_UT_1 0x00000000 /* - 1 byte */
-#define DMxCTR_UT_2 0x00002000 /* - 2 byte */
-#define DMxCTR_UT_4 0x00004000 /* - 4 byte */
-#define DMxCTR_UT_16 0x00006000 /* - 16 byte */
-#define DMxCTR_RRE 0x00008000 /* DMA round robin enable */
-#define DMxCTR_TEN 0x00010000 /* DMA channel transfer enable */
-#define DMxCTR_RQM 0x00060000 /* external request input source mode */
-#define DMxCTR_RQM_FALLEDGE 0x00000000 /* - falling edge */
-#define DMxCTR_RQM_RISEEDGE 0x00020000 /* - rising edge */
-#define DMxCTR_RQM_LOLEVEL 0x00040000 /* - low level */
-#define DMxCTR_RQM_HILEVEL 0x00060000 /* - high level */
-#define DMxCTR_RQF 0x01000000 /* DMA transfer request flag */
-#define DMxCTR_PERR 0x40000000 /* DMA transfer parameter error flag */
-#define DMxCTR_XEND 0x80000000 /* DMA transfer end flag */
-
-#define DMxSRC(N) __SYSREG(0xd4005004+(N*0x100), u32) /* control reg */
-
-#define DMxDST(N) __SYSREG(0xd4005008+(N*0x100), u32) /* source addr reg */
-
-#define DMxSIZ(N) __SYSREG(0xd400500c+(N*0x100), u32) /* dest addr reg */
-#define DMxSIZ_CT 0x000fffff /* number of bytes to transfer */
-
-#define DMxCYC(N) __SYSREG(0xd4005010+(N*0x100), u32) /* intermittent size reg */
-#define DMxCYC_CYC 0x000000ff /* number of interrmittent transfers -1 */
-
-#define DM0IRQ 16 /* DMA channel 0 complete IRQ */
-#define DM1IRQ 17 /* DMA channel 1 complete IRQ */
-#define DM2IRQ 18 /* DMA channel 2 complete IRQ */
-#define DM3IRQ 19 /* DMA channel 3 complete IRQ */
-
-#define DM0ICR GxICR(DM0IRQ) /* DMA channel 0 complete intr ctrl reg */
-#define DM1ICR GxICR(DM0IR1) /* DMA channel 1 complete intr ctrl reg */
-#define DM2ICR GxICR(DM0IR2) /* DMA channel 2 complete intr ctrl reg */
-#define DM3ICR GxICR(DM0IR3) /* DMA channel 3 complete intr ctrl reg */
-
-#ifndef __ASSEMBLY__
-
-struct mn10300_dmactl_regs {
- u32 ctr;
- const void *src;
- void *dst;
- u32 siz;
- u32 cyc;
-} __attribute__((aligned(0x100)));
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_PROC_DMACTL_REGS_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_PROC_INTCTL_REGS_H
-#define _ASM_PROC_INTCTL_REGS_H
-
-#ifndef _ASM_INTCTL_REGS_H
-# error "please don't include this file directly"
-#endif
-
-/* intr acceptance group reg */
-#define IAGR __SYSREG(0xd4000100, u16)
-
-/* group number register */
-#define IAGR_GN 0x003fc
-
-#define __GET_XIRQ_TRIGGER(X, Z) (((Z) >> ((X) * 2)) & 3)
-
-#define __SET_XIRQ_TRIGGER(X, Y, Z) \
-({ \
- typeof(Z) x = (Z); \
- x &= ~(3 << ((X) * 2)); \
- x |= ((Y) & 3) << ((X) * 2); \
- (Z) = x; \
-})
-
-/* external pin intr spec reg */
-#define EXTMD0 __SYSREG(0xd4000200, u32)
-#define GET_XIRQ_TRIGGER(X) __GET_XIRQ_TRIGGER(X, EXTMD0)
-#define SET_XIRQ_TRIGGER(X, Y) __SET_XIRQ_TRIGGER(X, Y, EXTMD0)
-
-#endif /* _ASM_PROC_INTCTL_REGS_H */
+++ /dev/null
-/* MN2WS0050 on-board interrupt controller registers
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * Modified by Matsushita Electric Industrial Co., Ltd.
- * Modifications:
- * 13-Nov-2006 MEI Define extended IRQ number for SMP support.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _PROC_IRQ_H
-#define _PROC_IRQ_H
-
-#ifdef __KERNEL__
-
-#define GxICR_NUM_IRQS 163
-#ifdef CONFIG_SMP
-#define GxICR_NUM_EXT_IRQS 197
-#endif /* CONFIG_SMP */
-
-#define GxICR_NUM_XIRQS 16
-
-#define XIRQ0 34
-#define XIRQ1 35
-#define XIRQ2 36
-#define XIRQ3 37
-#define XIRQ4 38
-#define XIRQ5 39
-#define XIRQ6 40
-#define XIRQ7 41
-#define XIRQ8 42
-#define XIRQ9 43
-#define XIRQ10 44
-#define XIRQ11 45
-#define XIRQ12 46
-#define XIRQ13 47
-#define XIRQ14 48
-#define XIRQ15 49
-
-#define XIRQ2IRQ(num) (XIRQ0 + num)
-
-#endif /* __KERNEL__ */
-
-#endif /* _PROC_IRQ_H */
+++ /dev/null
-/* NAND flash interface register definitions
- *
- * Copyright (C) 2008-2009 Panasonic Corporation
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef _PROC_NAND_REGS_H_
-#define _PROC_NAND_REGS_H_
-
-/* command register */
-#define FCOMMAND_0 __SYSREG(0xd8f00000, u8) /* fcommand[24:31] */
-#define FCOMMAND_1 __SYSREG(0xd8f00001, u8) /* fcommand[16:23] */
-#define FCOMMAND_2 __SYSREG(0xd8f00002, u8) /* fcommand[8:15] */
-#define FCOMMAND_3 __SYSREG(0xd8f00003, u8) /* fcommand[0:7] */
-
-/* for dma 16 byte trans, use FCOMMAND2 register */
-#define FCOMMAND2_0 __SYSREG(0xd8f00110, u8) /* fcommand2[24:31] */
-#define FCOMMAND2_1 __SYSREG(0xd8f00111, u8) /* fcommand2[16:23] */
-#define FCOMMAND2_2 __SYSREG(0xd8f00112, u8) /* fcommand2[8:15] */
-#define FCOMMAND2_3 __SYSREG(0xd8f00113, u8) /* fcommand2[0:7] */
-
-#define FCOMMAND_FIEN 0x80 /* nand flash I/F enable */
-#define FCOMMAND_BW_8BIT 0x00 /* 8bit bus width */
-#define FCOMMAND_BW_16BIT 0x40 /* 16bit bus width */
-#define FCOMMAND_BLOCKSZ_SMALL 0x00 /* small block */
-#define FCOMMAND_BLOCKSZ_LARGE 0x20 /* large block */
-#define FCOMMAND_DMASTART 0x10 /* dma start */
-#define FCOMMAND_RYBY 0x08 /* ready/busy flag */
-#define FCOMMAND_RYBYINTMSK 0x04 /* mask ready/busy interrupt */
-#define FCOMMAND_XFWP 0x02 /* write protect enable */
-#define FCOMMAND_XFCE 0x01 /* flash device disable */
-#define FCOMMAND_SEQKILL 0x10 /* stop seq-read */
-#define FCOMMAND_ANUM 0x07 /* address cycle */
-#define FCOMMAND_ANUM_NONE 0x00 /* address cycle none */
-#define FCOMMAND_ANUM_1CYC 0x01 /* address cycle 1cycle */
-#define FCOMMAND_ANUM_2CYC 0x02 /* address cycle 2cycle */
-#define FCOMMAND_ANUM_3CYC 0x03 /* address cycle 3cycle */
-#define FCOMMAND_ANUM_4CYC 0x04 /* address cycle 4cycle */
-#define FCOMMAND_ANUM_5CYC 0x05 /* address cycle 5cycle */
-#define FCOMMAND_FCMD_READ0 0x00 /* read1 command */
-#define FCOMMAND_FCMD_SEQIN 0x80 /* page program 1st command */
-#define FCOMMAND_FCMD_PAGEPROG 0x10 /* page program 2nd command */
-#define FCOMMAND_FCMD_RESET 0xff /* reset command */
-#define FCOMMAND_FCMD_ERASE1 0x60 /* erase 1st command */
-#define FCOMMAND_FCMD_ERASE2 0xd0 /* erase 2nd command */
-#define FCOMMAND_FCMD_STATUS 0x70 /* read status command */
-#define FCOMMAND_FCMD_READID 0x90 /* read id command */
-#define FCOMMAND_FCMD_READOOB 0x50 /* read3 command */
-/* address register */
-#define FADD __SYSREG(0xd8f00004, u32)
-/* address register 2 */
-#define FADD2 __SYSREG(0xd8f00008, u32)
-/* error judgement register */
-#define FJUDGE __SYSREG(0xd8f0000c, u32)
-#define FJUDGE_NOERR 0x0 /* no error */
-#define FJUDGE_1BITERR 0x1 /* 1bit error in data area */
-#define FJUDGE_PARITYERR 0x2 /* parity error */
-#define FJUDGE_UNCORRECTABLE 0x3 /* uncorrectable error */
-#define FJUDGE_ERRJDG_MSK 0x3 /* mask of judgement result */
-/* 1st ECC store register */
-#define FECC11 __SYSREG(0xd8f00010, u32)
-/* 2nd ECC store register */
-#define FECC12 __SYSREG(0xd8f00014, u32)
-/* 3rd ECC store register */
-#define FECC21 __SYSREG(0xd8f00018, u32)
-/* 4th ECC store register */
-#define FECC22 __SYSREG(0xd8f0001c, u32)
-/* 5th ECC store register */
-#define FECC31 __SYSREG(0xd8f00020, u32)
-/* 6th ECC store register */
-#define FECC32 __SYSREG(0xd8f00024, u32)
-/* 7th ECC store register */
-#define FECC41 __SYSREG(0xd8f00028, u32)
-/* 8th ECC store register */
-#define FECC42 __SYSREG(0xd8f0002c, u32)
-/* data register */
-#define FDATA __SYSREG(0xd8f00030, u32)
-/* access pulse register */
-#define FPWS __SYSREG(0xd8f00100, u32)
-#define FPWS_PWS1W_2CLK 0x00000000 /* write pulse width 1clock */
-#define FPWS_PWS1W_3CLK 0x01000000 /* write pulse width 2clock */
-#define FPWS_PWS1W_4CLK 0x02000000 /* write pulse width 4clock */
-#define FPWS_PWS1W_5CLK 0x03000000 /* write pulse width 5clock */
-#define FPWS_PWS1W_6CLK 0x04000000 /* write pulse width 6clock */
-#define FPWS_PWS1W_7CLK 0x05000000 /* write pulse width 7clock */
-#define FPWS_PWS1W_8CLK 0x06000000 /* write pulse width 8clock */
-#define FPWS_PWS1R_3CLK 0x00010000 /* read pulse width 3clock */
-#define FPWS_PWS1R_4CLK 0x00020000 /* read pulse width 4clock */
-#define FPWS_PWS1R_5CLK 0x00030000 /* read pulse width 5clock */
-#define FPWS_PWS1R_6CLK 0x00040000 /* read pulse width 6clock */
-#define FPWS_PWS1R_7CLK 0x00050000 /* read pulse width 7clock */
-#define FPWS_PWS1R_8CLK 0x00060000 /* read pulse width 8clock */
-#define FPWS_PWS2W_2CLK 0x00000100 /* write pulse interval 2clock */
-#define FPWS_PWS2W_3CLK 0x00000200 /* write pulse interval 3clock */
-#define FPWS_PWS2W_4CLK 0x00000300 /* write pulse interval 4clock */
-#define FPWS_PWS2W_5CLK 0x00000400 /* write pulse interval 5clock */
-#define FPWS_PWS2W_6CLK 0x00000500 /* write pulse interval 6clock */
-#define FPWS_PWS2R_2CLK 0x00000001 /* read pulse interval 2clock */
-#define FPWS_PWS2R_3CLK 0x00000002 /* read pulse interval 3clock */
-#define FPWS_PWS2R_4CLK 0x00000003 /* read pulse interval 4clock */
-#define FPWS_PWS2R_5CLK 0x00000004 /* read pulse interval 5clock */
-#define FPWS_PWS2R_6CLK 0x00000005 /* read pulse interval 6clock */
-/* command register 2 */
-#define FCOMMAND2 __SYSREG(0xd8f00110, u32)
-/* transfer frequency register */
-#define FNUM __SYSREG(0xd8f00114, u32)
-#define FSDATA_ADDR 0xd8f00400
-/* active data register */
-#define FSDATA __SYSREG(FSDATA_ADDR, u32)
-
-#endif /* _PROC_NAND_REGS_H_ */
+++ /dev/null
-/* proc.h: MN2WS0050 processor description
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _ASM_PROC_PROC_H
-#define _ASM_PROC_PROC_H
-
-#define PROCESSOR_VENDOR_NAME "Panasonic"
-#define PROCESSOR_MODEL_NAME "mn2ws0050"
-
-#endif /* _ASM_PROC_PROC_H */
+++ /dev/null
-/* MN10300/AM33v2 Microcontroller SMP registers
- *
- * Copyright (C) 2006 Matsushita Electric Industrial Co., Ltd.
- * All Rights Reserved.
- * Created:
- * 13-Nov-2006 MEI Add extended cache and atomic operation register
- * for SMP support.
- * 23-Feb-2007 MEI Add define for gdbstub SMP.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _ASM_PROC_SMP_REGS_H
-#define _ASM_PROC_SMP_REGS_H
-
-#ifdef __KERNEL__
-
-#ifndef __ASSEMBLY__
-#include <linux/types.h>
-#endif
-#include <asm/cpu-regs.h>
-
-/*
- * Reference to the interrupt controllers of other CPUs
- */
-#define CROSS_ICR_CPU_SHIFT 16
-
-#define CROSS_GxICR(X, CPU) __SYSREG(0xc4000000 + (X) * 4 + \
- ((X) >= 64 && (X) < 192) * 0xf00 + ((CPU) << CROSS_ICR_CPU_SHIFT), u16)
-#define CROSS_GxICR_u8(X, CPU) __SYSREG(0xc4000000 + (X) * 4 + \
- (((X) >= 64) && ((X) < 192)) * 0xf00 + ((CPU) << CROSS_ICR_CPU_SHIFT), u8)
-
-/* CPU ID register */
-#define CPUID __SYSREGC(0xc0000054, u32)
-#define CPUID_MASK 0x00000007 /* CPU ID mask */
-
-/* extended cache control register */
-#define ECHCTR __SYSREG(0xc0000c20, u32)
-#define ECHCTR_IBCM 0x00000001 /* instruction cache broad cast mask */
-#define ECHCTR_DBCM 0x00000002 /* data cache broad cast mask */
-#define ECHCTR_ISPM 0x00000004 /* instruction cache snoop mask */
-#define ECHCTR_DSPM 0x00000008 /* data cache snoop mask */
-
-#define NMIAGR __SYSREG(0xd400013c, u16)
-#define NMIAGR_GN 0x03fc
-
-#endif /* __KERNEL__ */
-#endif /* _ASM_PROC_SMP_REGS_H */
+++ /dev/null
-/* MN2WS0050 processor initialisation
- *
- * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-
-#include <asm/cacheflush.h>
-#include <asm/processor.h>
-#include <linux/uaccess.h>
-#include <asm/io.h>
-#include <linux/atomic.h>
-#include <asm/smp.h>
-#include <asm/pgalloc.h>
-#include <asm/busctl-regs.h>
-#include <unit/timex.h>
-#include <asm/fpu.h>
-#include <asm/rtc.h>
-
-#define MEMCONF __SYSREGC(0xdf800400, u32)
-
-/*
- * initialise the on-silicon processor peripherals
- */
-asmlinkage void __init processor_init(void)
-{
- int loop;
-
- /* set up the exception table first */
- for (loop = 0x000; loop < 0x400; loop += 8)
- __set_intr_stub(loop, __common_exception);
-
- __set_intr_stub(EXCEP_ITLBMISS, itlb_miss);
- __set_intr_stub(EXCEP_DTLBMISS, dtlb_miss);
- __set_intr_stub(EXCEP_IAERROR, itlb_aerror);
- __set_intr_stub(EXCEP_DAERROR, dtlb_aerror);
- __set_intr_stub(EXCEP_BUSERROR, raw_bus_error);
- __set_intr_stub(EXCEP_DOUBLE_FAULT, double_fault);
- __set_intr_stub(EXCEP_FPU_DISABLED, fpu_disabled);
- __set_intr_stub(EXCEP_SYSCALL0, system_call);
-
- __set_intr_stub(EXCEP_NMI, nmi_handler);
- __set_intr_stub(EXCEP_WDT, nmi_handler);
- __set_intr_stub(EXCEP_IRQ_LEVEL0, irq_handler);
- __set_intr_stub(EXCEP_IRQ_LEVEL1, irq_handler);
- __set_intr_stub(EXCEP_IRQ_LEVEL2, irq_handler);
- __set_intr_stub(EXCEP_IRQ_LEVEL3, irq_handler);
- __set_intr_stub(EXCEP_IRQ_LEVEL4, irq_handler);
- __set_intr_stub(EXCEP_IRQ_LEVEL5, irq_handler);
- __set_intr_stub(EXCEP_IRQ_LEVEL6, irq_handler);
-
- IVAR0 = EXCEP_IRQ_LEVEL0;
- IVAR1 = EXCEP_IRQ_LEVEL1;
- IVAR2 = EXCEP_IRQ_LEVEL2;
- IVAR3 = EXCEP_IRQ_LEVEL3;
- IVAR4 = EXCEP_IRQ_LEVEL4;
- IVAR5 = EXCEP_IRQ_LEVEL5;
- IVAR6 = EXCEP_IRQ_LEVEL6;
-
-#ifndef CONFIG_MN10300_HAS_CACHE_SNOOP
- mn10300_dcache_flush_inv();
- mn10300_icache_inv();
-#endif
-
- /* disable all interrupts and set to priority 6 (lowest) */
-#ifdef CONFIG_SMP
- for (loop = 0; loop < GxICR_NUM_IRQS; loop++)
- GxICR(loop) = GxICR_LEVEL_6 | GxICR_DETECT;
-#else /* !CONFIG_SMP */
- for (loop = 0; loop < NR_IRQS; loop++)
- GxICR(loop) = GxICR_LEVEL_6 | GxICR_DETECT;
-#endif /* !CONFIG_SMP */
-
- /* clear the timers */
- TM0MD = 0;
- TM1MD = 0;
- TM2MD = 0;
- TM3MD = 0;
- TM4MD = 0;
- TM5MD = 0;
- TM6MD = 0;
- TM6MDA = 0;
- TM6MDB = 0;
- TM7MD = 0;
- TM8MD = 0;
- TM9MD = 0;
- TM10MD = 0;
- TM11MD = 0;
- TM12MD = 0;
- TM13MD = 0;
- TM14MD = 0;
- TM15MD = 0;
-
- calibrate_clock();
-}
-
-/*
- * determine the memory size and base from the memory controller regs
- */
-void __init get_mem_info(unsigned long *mem_base, unsigned long *mem_size)
-{
- unsigned long memconf = MEMCONF;
- unsigned long size = 0; /* order: MByte */
-
- *mem_base = 0x90000000; /* fixed address */
-
- switch (memconf & 0x00000003) {
- case 0x01:
- size = 256 / 8; /* 256 Mbit per chip */
- break;
- case 0x02:
- size = 512 / 8; /* 512 Mbit per chip */
- break;
- case 0x03:
- size = 1024 / 8; /* 1 Gbit per chip */
- break;
- default:
- panic("Invalid SDRAM size");
- break;
- }
-
- printk(KERN_INFO "DDR2-SDRAM: %luMB x 2 @%08lx\n", size, *mem_base);
-
- *mem_size = (size * 2) << 20;
-}
+++ /dev/null
-###############################################################################
-#
-# Makefile for the ASB2303 board
-#
-###############################################################################
-obj-y := unit-init.o smc91111.o flash.o leds.o
+++ /dev/null
-/* Handle mapping of the flash on the ASB2303 board
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/mtd/partitions.h>
-#include <linux/mtd/physmap.h>
-
-#define ASB2303_PROM_ADDR 0xA0000000 /* Boot PROM */
-#define ASB2303_PROM_SIZE (2 * 1024 * 1024)
-#define ASB2303_FLASH_ADDR 0xA4000000 /* System Flash */
-#define ASB2303_FLASH_SIZE (32 * 1024 * 1024)
-#define ASB2303_CONFIG_ADDR 0xA6000000 /* System Config EEPROM */
-#define ASB2303_CONFIG_SIZE (8 * 1024)
-
-/*
- * default MTD partition table for both main flash devices, expected to be
- * overridden by RedBoot
- */
-static struct mtd_partition asb2303_partitions[] = {
- {
- .name = "Bootloader",
- .size = 0x00040000,
- .offset = 0,
- .mask_flags = MTD_CAP_ROM /* force read-only */
- }, {
- .name = "Kernel",
- .size = 0x00400000,
- .offset = 0x00040000,
- }, {
- .name = "Filesystem",
- .size = MTDPART_SIZ_FULL,
- .offset = 0x00440000
- }
-};
-
-/*
- * the ASB2303 Boot PROM definition
- */
-static struct physmap_flash_data asb2303_bootprom_data = {
- .width = 2,
- .nr_parts = 1,
- .parts = asb2303_partitions,
-};
-
-static struct resource asb2303_bootprom_resource = {
- .start = ASB2303_PROM_ADDR,
- .end = ASB2303_PROM_ADDR + ASB2303_PROM_SIZE,
- .flags = IORESOURCE_MEM,
-};
-
-static struct platform_device asb2303_bootprom = {
- .name = "physmap-flash",
- .id = 0,
- .dev.platform_data = &asb2303_bootprom_data,
- .num_resources = 1,
- .resource = &asb2303_bootprom_resource,
-};
-
-/*
- * the ASB2303 System Flash definition
- */
-static struct physmap_flash_data asb2303_sysflash_data = {
- .width = 4,
- .nr_parts = 1,
- .parts = asb2303_partitions,
-};
-
-static struct resource asb2303_sysflash_resource = {
- .start = ASB2303_FLASH_ADDR,
- .end = ASB2303_FLASH_ADDR + ASB2303_FLASH_SIZE,
- .flags = IORESOURCE_MEM,
-};
-
-static struct platform_device asb2303_sysflash = {
- .name = "physmap-flash",
- .id = 1,
- .dev.platform_data = &asb2303_sysflash_data,
- .num_resources = 1,
- .resource = &asb2303_sysflash_resource,
-};
-
-/*
- * register the ASB2303 flashes
- */
-static int __init asb2303_mtd_init(void)
-{
- platform_device_register(&asb2303_bootprom);
- platform_device_register(&asb2303_sysflash);
- return 0;
-}
-device_initcall(asb2303_mtd_init);
+++ /dev/null
-/* ASB2303-specific clocks
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_UNIT_CLOCK_H
-#define _ASM_UNIT_CLOCK_H
-
-#ifndef __ASSEMBLY__
-
-#define MN10300_IOCLK 33333333UL
-/* #define MN10300_IOBCLK 66666666UL */
-
-#endif /* !__ASSEMBLY__ */
-
-#define MN10300_WDCLK MN10300_IOCLK
-
-#endif /* _ASM_UNIT_CLOCK_H */
+++ /dev/null
-/* ASB2303-specific LEDs
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_UNIT_LEDS_H
-#define _ASM_UNIT_LEDS_H
-
-#include <asm/pio-regs.h>
-#include <asm/cpu-regs.h>
-#include <asm/exceptions.h>
-
-#define ASB2303_GPIO0DEF __SYSREG(0xDB000000, u32)
-#define ASB2303_7SEGLEDS __SYSREG(0xDB000008, u32)
-
-/*
- * use the 7-segment LEDs to indicate states
- */
-
-/* flip the 7-segment LEDs between "G" and "-" */
-#define mn10300_set_gdbleds(ONOFF) \
-do { \
- ASB2303_7SEGLEDS = (ONOFF) ? 0x85 : 0x7f; \
-} while (0)
-
-/* indicate double-fault by displaying "d" on the LEDs */
-#define mn10300_set_dbfleds \
- mov 0x43,d0 ; \
- movbu d0,(ASB2303_7SEGLEDS)
-
-#ifndef __ASSEMBLY__
-extern void peripheral_leds_display_exception(enum exception_code code);
-extern void peripheral_leds_led_chase(void);
-extern void debug_to_serial(const char *p, int n);
-#endif /* __ASSEMBLY__ */
-
-#endif /* _ASM_UNIT_LEDS_H */
+++ /dev/null
-/* ASB2303-specific 8250 serial ports
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_UNIT_SERIAL_H
-#define _ASM_UNIT_SERIAL_H
-
-#include <asm/cpu-regs.h>
-#include <proc/irq.h>
-#include <linux/serial_reg.h>
-
-#define SERIAL_PORT0_BASE_ADDRESS 0xA6FB0000
-#define SERIAL_PORT1_BASE_ADDRESS 0xA6FC0000
-
-#define SERIAL_IRQ XIRQ0 /* Dual serial (PC16552) (Hi) */
-
-/*
- * The ASB2303 has an 18.432 MHz clock the UART
- */
-#define BASE_BAUD (18432000 / 16)
-
-/*
- * dispose of the /dev/ttyS0 and /dev/ttyS1 serial ports
- */
-#ifndef CONFIG_GDBSTUB_ON_TTYSx
-
-#define SERIAL_PORT_DFNS \
- { \
- .baud_base = BASE_BAUD, \
- .irq = SERIAL_IRQ, \
- .flags = STD_COM_FLAGS, \
- .iomem_base = (u8 *) SERIAL_PORT0_BASE_ADDRESS, \
- .iomem_reg_shift = 2, \
- .io_type = SERIAL_IO_MEM, \
- }, \
- { \
- .baud_base = BASE_BAUD, \
- .irq = SERIAL_IRQ, \
- .flags = STD_COM_FLAGS, \
- .iomem_base = (u8 *) SERIAL_PORT1_BASE_ADDRESS, \
- .iomem_reg_shift = 2, \
- .io_type = SERIAL_IO_MEM, \
- },
-
-#ifndef __ASSEMBLY__
-
-static inline void __debug_to_serial(const char *p, int n)
-{
-}
-
-#endif /* !__ASSEMBLY__ */
-
-#else /* CONFIG_GDBSTUB_ON_TTYSx */
-
-#define SERIAL_PORT_DFNS /* both stolen by gdb-stub because they share an IRQ */
-
-#if defined(CONFIG_GDBSTUB_ON_TTYS0)
-#define GDBPORT_SERIAL_RX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_RX * 4, u8)
-#define GDBPORT_SERIAL_TX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_TX * 4, u8)
-#define GDBPORT_SERIAL_DLL __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLL * 4, u8)
-#define GDBPORT_SERIAL_DLM __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLM * 4, u8)
-#define GDBPORT_SERIAL_IER __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IER * 4, u8)
-#define GDBPORT_SERIAL_IIR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IIR * 4, u8)
-#define GDBPORT_SERIAL_FCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_FCR * 4, u8)
-#define GDBPORT_SERIAL_LCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LCR * 4, u8)
-#define GDBPORT_SERIAL_MCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MCR * 4, u8)
-#define GDBPORT_SERIAL_LSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LSR * 4, u8)
-#define GDBPORT_SERIAL_MSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MSR * 4, u8)
-#define GDBPORT_SERIAL_SCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_SCR * 4, u8)
-#define GDBPORT_SERIAL_IRQ SERIAL_IRQ
-
-#elif defined(CONFIG_GDBSTUB_ON_TTYS1)
-#define GDBPORT_SERIAL_RX __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_RX * 4, u8)
-#define GDBPORT_SERIAL_TX __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_TX * 4, u8)
-#define GDBPORT_SERIAL_DLL __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_DLL * 4, u8)
-#define GDBPORT_SERIAL_DLM __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_DLM * 4, u8)
-#define GDBPORT_SERIAL_IER __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_IER * 4, u8)
-#define GDBPORT_SERIAL_IIR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_IIR * 4, u8)
-#define GDBPORT_SERIAL_FCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_FCR * 4, u8)
-#define GDBPORT_SERIAL_LCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_LCR * 4, u8)
-#define GDBPORT_SERIAL_MCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_MCR * 4, u8)
-#define GDBPORT_SERIAL_LSR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_LSR * 4, u8)
-#define GDBPORT_SERIAL_MSR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_MSR * 4, u8)
-#define GDBPORT_SERIAL_SCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_SCR * 4, u8)
-#define GDBPORT_SERIAL_IRQ SERIAL_IRQ
-#endif
-
-#ifndef __ASSEMBLY__
-
-#define LSR_WAIT_FOR(STATE) \
-do { \
- while (!(GDBPORT_SERIAL_LSR & UART_LSR_##STATE)) {} \
-} while (0)
-#define FLOWCTL_WAIT_FOR(LINE) \
-do { \
- while (!(GDBPORT_SERIAL_MSR & UART_MSR_##LINE)) {} \
-} while (0)
-#define FLOWCTL_CLEAR(LINE) \
-do { \
- GDBPORT_SERIAL_MCR &= ~UART_MCR_##LINE; \
-} while (0)
-#define FLOWCTL_SET(LINE) \
-do { \
- GDBPORT_SERIAL_MCR |= UART_MCR_##LINE; \
-} while (0)
-#define FLOWCTL_QUERY(LINE) ({ GDBPORT_SERIAL_MSR & UART_MSR_##LINE; })
-
-static inline void __debug_to_serial(const char *p, int n)
-{
- char ch;
-
- FLOWCTL_SET(DTR);
-
- for (; n > 0; n--) {
- LSR_WAIT_FOR(THRE);
- FLOWCTL_WAIT_FOR(CTS);
-
- ch = *p++;
- if (ch == 0x0a) {
- GDBPORT_SERIAL_TX = 0x0d;
- LSR_WAIT_FOR(THRE);
- FLOWCTL_WAIT_FOR(CTS);
- }
- GDBPORT_SERIAL_TX = ch;
- }
-
- FLOWCTL_CLEAR(DTR);
-}
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* CONFIG_GDBSTUB_ON_TTYSx */
-
-#endif /* _ASM_UNIT_SERIAL_H */
+++ /dev/null
-/* Support for the SMC91C111 NIC on an ASB2303
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_UNIT_SMC91111_H
-#define _ASM_UNIT_SMC91111_H
-
-#include <asm/intctl-regs.h>
-
-#define SMC91111_BASE 0xAA000300UL
-#define SMC91111_BASE_END 0xAA000400UL
-#define SMC91111_IRQ XIRQ3
-
-#define SMC_CAN_USE_8BIT 0
-#define SMC_CAN_USE_16BIT 1
-#define SMC_CAN_USE_32BIT 0
-#define SMC_NOWAIT 1
-#define SMC_IRQ_FLAGS (0)
-
-#if SMC_CAN_USE_8BIT
-#define SMC_inb(a, r) inb((unsigned long) ((a) + (r)))
-#define SMC_outb(v, a, r) outb(v, (unsigned long) ((a) + (r)))
-#endif
-
-#if SMC_CAN_USE_16BIT
-#define SMC_inw(a, r) inw((unsigned long) ((a) + (r)))
-#define SMC_outw(lp, v, a, r) outw(v, (unsigned long) ((a) + (r)))
-#define SMC_insw(a, r, p, l) insw((unsigned long) ((a) + (r)), (p), (l))
-#define SMC_outsw(a, r, p, l) outsw((unsigned long) ((a) + (r)), (p), (l))
-#endif
-
-#if SMC_CAN_USE_32BIT
-#define SMC_inl(a, r) inl((unsigned long) ((a) + (r)))
-#define SMC_outl(v, a, r) outl(v, (unsigned long) ((a) + (r)))
-#define SMC_insl(a, r, p, l) insl((unsigned long) ((a) + (r)), (p), (l))
-#define SMC_outsl(a, r, p, l) outsl((unsigned long) ((a) + (r)), (p), (l))
-#endif
-
-#define RPC_LSA_DEFAULT RPC_LED_100_10
-#define RPC_LSB_DEFAULT RPC_LED_TX_RX
-
-#define set_irq_type(irq, type)
-
-#endif /* _ASM_UNIT_SMC91111_H */
+++ /dev/null
-/* ASB2303-specific timer specifications
- *
- * Copyright (C) 2007, 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_UNIT_TIMEX_H
-#define _ASM_UNIT_TIMEX_H
-
-#include <asm/timer-regs.h>
-#include <unit/clock.h>
-#include <asm/param.h>
-
-/*
- * jiffies counter specifications
- */
-
-#define TMJCBR_MAX 0xffff
-#define TMJCIRQ TM1IRQ
-#define TMJCICR TM1ICR
-
-#ifndef __ASSEMBLY__
-
-#define MN10300_SRC_IOCLK MN10300_IOCLK
-
-#ifndef HZ
-# error HZ undeclared.
-#endif /* !HZ */
-/* use as little prescaling as possible to avoid losing accuracy */
-#if (MN10300_SRC_IOCLK + HZ / 2) / HZ - 1 <= TMJCBR_MAX
-# define IOCLK_PRESCALE 1
-# define JC_TIMER_CLKSRC TM0MD_SRC_IOCLK
-# define TSC_TIMER_CLKSRC TM4MD_SRC_IOCLK
-#elif (MN10300_SRC_IOCLK / 8 + HZ / 2) / HZ - 1 <= TMJCBR_MAX
-# define IOCLK_PRESCALE 8
-# define JC_TIMER_CLKSRC TM0MD_SRC_IOCLK_8
-# define TSC_TIMER_CLKSRC TM4MD_SRC_IOCLK_8
-#elif (MN10300_SRC_IOCLK / 32 + HZ / 2) / HZ - 1 <= TMJCBR_MAX
-# define IOCLK_PRESCALE 32
-# define JC_TIMER_CLKSRC TM0MD_SRC_IOCLK_32
-# define TSC_TIMER_CLKSRC TM4MD_SRC_IOCLK_32
-#else
-# error You lose.
-#endif
-
-#define MN10300_JCCLK (MN10300_SRC_IOCLK / IOCLK_PRESCALE)
-#define MN10300_TSCCLK (MN10300_SRC_IOCLK / IOCLK_PRESCALE)
-
-#define MN10300_JC_PER_HZ ((MN10300_JCCLK + HZ / 2) / HZ)
-#define MN10300_TSC_PER_HZ ((MN10300_TSCCLK + HZ / 2) / HZ)
-
-static inline void stop_jiffies_counter(void)
-{
- u16 tmp;
- TM01MD = JC_TIMER_CLKSRC | TM1MD_SRC_TM0CASCADE << 8;
- tmp = TM01MD;
-}
-
-static inline void reload_jiffies_counter(u32 cnt)
-{
- u32 tmp;
-
- TM01BR = cnt;
- tmp = TM01BR;
-
- TM01MD = JC_TIMER_CLKSRC | \
- TM1MD_SRC_TM0CASCADE << 8 | \
- TM0MD_INIT_COUNTER | \
- TM1MD_INIT_COUNTER << 8;
-
-
- TM01MD = JC_TIMER_CLKSRC | \
- TM1MD_SRC_TM0CASCADE << 8 | \
- TM0MD_COUNT_ENABLE | \
- TM1MD_COUNT_ENABLE << 8;
-
- tmp = TM01MD;
-}
-
-#endif /* !__ASSEMBLY__ */
-
-
-/*
- * timestamp counter specifications
- */
-
-#define TMTSCBR_MAX 0xffffffff
-#define TMTSCBC TM45BC
-
-#ifndef __ASSEMBLY__
-
-static inline void startup_timestamp_counter(void)
-{
- u32 t32;
-
- /* set up timer 4 & 5 cascaded as a 32-bit counter to count real time
- * - count down from 4Gig-1 to 0 and wrap at IOCLK rate
- */
- TM45BR = TMTSCBR_MAX;
- t32 = TM45BR;
-
- TM4MD = TSC_TIMER_CLKSRC;
- TM4MD |= TM4MD_INIT_COUNTER;
- TM4MD &= ~TM4MD_INIT_COUNTER;
- TM4ICR = 0;
- t32 = TM4ICR;
-
- TM5MD = TM5MD_SRC_TM4CASCADE;
- TM5MD |= TM5MD_INIT_COUNTER;
- TM5MD &= ~TM5MD_INIT_COUNTER;
- TM5ICR = 0;
- t32 = TM5ICR;
-
- TM5MD |= TM5MD_COUNT_ENABLE;
- TM4MD |= TM4MD_COUNT_ENABLE;
- t32 = TM5MD;
- t32 = TM4MD;
-}
-
-static inline void shutdown_timestamp_counter(void)
-{
- u8 t8;
- TM4MD = 0;
- TM5MD = 0;
- t8 = TM4MD;
- t8 = TM5MD;
-}
-
-/*
- * we use a cascaded pair of 16-bit down-counting timers to count I/O
- * clock cycles for the purposes of time keeping
- */
-typedef unsigned long cycles_t;
-
-static inline cycles_t read_timestamp_counter(void)
-{
- return (cycles_t)~TMTSCBC;
-}
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* _ASM_UNIT_TIMEX_H */
+++ /dev/null
-/* ASB2303 peripheral 7-segment LEDs x1 support
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/init.h>
-
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/intctl-regs.h>
-#include <asm/rtc-regs.h>
-#include <unit/leds.h>
-
-#if 0
-static const u8 asb2303_led_hex_tbl[16] = {
- 0x80, 0xf2, 0x48, 0x60, 0x32, 0x24, 0x04, 0xf0,
- 0x00, 0x20, 0x10, 0x06, 0x8c, 0x42, 0x0c, 0x1c
-};
-#endif
-
-static const u8 asb2303_led_chase_tbl[6] = {
- ~0x02, /* top - segA */
- ~0x04, /* right top - segB */
- ~0x08, /* right bottom - segC */
- ~0x10, /* bottom - segD */
- ~0x20, /* left bottom - segE */
- ~0x40, /* left top - segF */
-};
-
-static unsigned asb2303_led_chase;
-
-void peripheral_leds_display_exception(enum exception_code code)
-{
- ASB2303_GPIO0DEF = 0x5555; /* configure as an output port */
- ASB2303_7SEGLEDS = 0x6d; /* triple horizontal bar */
-}
-
-void peripheral_leds_led_chase(void)
-{
- ASB2303_GPIO0DEF = 0x5555; /* configure as an output port */
- ASB2303_7SEGLEDS = asb2303_led_chase_tbl[asb2303_led_chase];
- asb2303_led_chase++;
- if (asb2303_led_chase >= 6)
- asb2303_led_chase = 0;
-}
+++ /dev/null
-/* ASB2303 initialisation
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/timex.h>
-#include <asm/processor.h>
-#include <asm/intctl-regs.h>
-#include <unit/smc91111.h>
-
-static struct resource smc91c111_resources[] = {
- [0] = {
- .start = SMC91111_BASE,
- .end = SMC91111_BASE_END,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = SMC91111_IRQ,
- .end = SMC91111_IRQ,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static struct platform_device smc91c111_device = {
- .name = "smc91x",
- .id = 0,
- .num_resources = ARRAY_SIZE(smc91c111_resources),
- .resource = smc91c111_resources,
-};
-
-/*
- * add platform devices
- */
-static int __init unit_device_init(void)
-{
- platform_device_register(&smc91c111_device);
- return 0;
-}
-
-device_initcall(unit_device_init);
+++ /dev/null
-/* ASB2303 initialisation
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/init.h>
-#include <linux/device.h>
-
-#include <asm/io.h>
-#include <asm/setup.h>
-#include <asm/processor.h>
-#include <asm/irq.h>
-#include <asm/intctl-regs.h>
-
-/*
- * initialise some of the unit hardware before gdbstub is set up
- */
-asmlinkage void __init unit_init(void)
-{
- /* set up the external interrupts */
- SET_XIRQ_TRIGGER(0, XIRQ_TRIGGER_HILEVEL);
- SET_XIRQ_TRIGGER(2, XIRQ_TRIGGER_LOWLEVEL);
- SET_XIRQ_TRIGGER(3, XIRQ_TRIGGER_HILEVEL);
- SET_XIRQ_TRIGGER(4, XIRQ_TRIGGER_LOWLEVEL);
- SET_XIRQ_TRIGGER(5, XIRQ_TRIGGER_LOWLEVEL);
-
-#ifdef CONFIG_EXT_SERIAL_IRQ_LEVEL
- set_intr_level(XIRQ0, NUM2GxICR_LEVEL(CONFIG_EXT_SERIAL_IRQ_LEVEL));
-#endif
-
-#ifdef CONFIG_ETHERNET_IRQ_LEVEL
- set_intr_level(XIRQ3, NUM2GxICR_LEVEL(CONFIG_ETHERNET_IRQ_LEVEL));
-#endif
-}
-
-/*
- * initialise the rest of the unit hardware after gdbstub is ready
- */
-void __init unit_setup(void)
-{
-}
-
-/*
- * initialise the external interrupts used by a unit of this type
- */
-void __init unit_init_IRQ(void)
-{
- unsigned int extnum;
-
- for (extnum = 0; extnum < NR_XIRQS; extnum++) {
- switch (GET_XIRQ_TRIGGER(extnum)) {
- case XIRQ_TRIGGER_HILEVEL:
- case XIRQ_TRIGGER_LOWLEVEL:
- mn10300_set_lateack_irq_type(XIRQ2IRQ(extnum));
- break;
- default:
- break;
- }
- }
-}
+++ /dev/null
-###############################################################################
-#
-# Makefile for the ASB2305 board
-#
-###############################################################################
-obj-y := unit-init.o leds.o
-
-obj-$(CONFIG_PCI) += pci.o pci-asb2305.o pci-irq.o
+++ /dev/null
-/* ASB2305-specific clocks
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_UNIT_CLOCK_H
-#define _ASM_UNIT_CLOCK_H
-
-#ifndef __ASSEMBLY__
-
-#define MN10300_IOCLK 33333333UL
-/* #define MN10300_IOBCLK 66666666UL */
-
-#endif /* !__ASSEMBLY__ */
-
-#define MN10300_WDCLK MN10300_IOCLK
-
-#endif /* _ASM_UNIT_CLOCK_H */
+++ /dev/null
-/* ASB2305-specific LEDs
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_UNIT_LEDS_H
-#define _ASM_UNIT_LEDS_H
-
-#include <asm/pio-regs.h>
-#include <asm/cpu-regs.h>
-#include <asm/exceptions.h>
-
-#define ASB2305_7SEGLEDS __SYSREG(0xA6F90000, u32)
-
-/* perform a hard reset by driving PIO06 low */
-#define mn10300_unit_hard_reset() \
-do { \
- P0OUT &= 0xbf; \
- P0MD = (P0MD & P0MD_6) | P0MD_6_OUT; \
-} while (0)
-
-/*
- * use the 7-segment LEDs to indicate states
- */
-/* indicate double-fault by displaying "db-f" on the LEDs */
-#define mn10300_set_dbfleds \
- mov 0x43077f1d,d0 ; \
- mov d0,(ASB2305_7SEGLEDS)
-
-/* flip the 7-segment LEDs between "Gdb-" and "----" */
-#define mn10300_set_gdbleds(ONOFF) \
-do { \
- ASB2305_7SEGLEDS = (ONOFF) ? 0x8543077f : 0x7f7f7f7f; \
-} while (0)
-
-#ifndef __ASSEMBLY__
-extern void peripheral_leds_display_exception(enum exception_code);
-extern void peripheral_leds_led_chase(void);
-extern void peripheral_leds7x4_display_dec(unsigned int, unsigned int);
-extern void peripheral_leds7x4_display_hex(unsigned int, unsigned int);
-extern void peripheral_leds7x4_display_minssecs(unsigned int, unsigned int);
-extern void peripheral_leds7x4_display_rtc(void);
-#endif /* __ASSEMBLY__ */
-
-#endif /* _ASM_UNIT_LEDS_H */
+++ /dev/null
-/* ASB2305-specific 8250 serial ports
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_UNIT_SERIAL_H
-#define _ASM_UNIT_SERIAL_H
-
-#include <asm/cpu-regs.h>
-#include <proc/irq.h>
-#include <linux/serial_reg.h>
-
-#define SERIAL_PORT0_BASE_ADDRESS 0xA6FB0000
-#define ASB2305_DEBUG_MCR __SYSREG(0xA6FB0000 + UART_MCR * 2, u8)
-
-#define SERIAL_IRQ XIRQ0 /* Dual serial (PC16552) (Hi) */
-
-/*
- * The ASB2305 has an 18.432 MHz clock the UART
- */
-#define BASE_BAUD (18432000 / 16)
-
-/*
- * dispose of the /dev/ttyS0 serial port
- */
-#ifndef CONFIG_GDBSTUB_ON_TTYSx
-
-#define SERIAL_PORT_DFNS \
- { \
- .baud_base = BASE_BAUD, \
- .irq = SERIAL_IRQ, \
- .flags = STD_COM_FLAGS, \
- .iomem_base = (u8 *) SERIAL_PORT0_BASE_ADDRESS, \
- .iomem_reg_shift = 2, \
- .io_type = SERIAL_IO_MEM, \
- },
-
-#ifndef __ASSEMBLY__
-
-static inline void __debug_to_serial(const char *p, int n)
-{
-}
-
-#endif /* !__ASSEMBLY__ */
-
-#else /* CONFIG_GDBSTUB_ON_TTYSx */
-
-#define SERIAL_PORT_DFNS /* stolen by gdb-stub */
-
-#if defined(CONFIG_GDBSTUB_ON_TTYS0)
-#define GDBPORT_SERIAL_RX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_RX * 4, u8)
-#define GDBPORT_SERIAL_TX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_TX * 4, u8)
-#define GDBPORT_SERIAL_DLL __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLL * 4, u8)
-#define GDBPORT_SERIAL_DLM __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLM * 4, u8)
-#define GDBPORT_SERIAL_IER __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IER * 4, u8)
-#define GDBPORT_SERIAL_IIR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IIR * 4, u8)
-#define GDBPORT_SERIAL_FCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_FCR * 4, u8)
-#define GDBPORT_SERIAL_LCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LCR * 4, u8)
-#define GDBPORT_SERIAL_MCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MCR * 4, u8)
-#define GDBPORT_SERIAL_LSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LSR * 4, u8)
-#define GDBPORT_SERIAL_MSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MSR * 4, u8)
-#define GDBPORT_SERIAL_SCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_SCR * 4, u8)
-#define GDBPORT_SERIAL_IRQ SERIAL_IRQ
-
-#elif defined(CONFIG_GDBSTUB_ON_TTYS1)
-#error The ASB2305 doesnt have a /dev/ttyS1
-#endif
-
-#ifndef __ASSEMBLY__
-
-#define TTYS0_TX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_TX * 4, u8)
-#define TTYS0_MCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MCR * 4, u8)
-#define TTYS0_LSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LSR * 4, u8)
-#define TTYS0_MSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MSR * 4, u8)
-
-#define LSR_WAIT_FOR(STATE) \
-do { \
- while (!(TTYS0_LSR & UART_LSR_##STATE)) {} \
-} while (0)
-#define FLOWCTL_WAIT_FOR(LINE) \
-do { \
- while (!(TTYS0_MSR & UART_MSR_##LINE)) {} \
-} while (0)
-#define FLOWCTL_CLEAR(LINE) \
-do { \
- TTYS0_MCR &= ~UART_MCR_##LINE; \
-} while (0)
-#define FLOWCTL_SET(LINE) \
-do { \
- TTYS0_MCR |= UART_MCR_##LINE; \
-} while (0)
-#define FLOWCTL_QUERY(LINE) ({ TTYS0_MSR & UART_MSR_##LINE; })
-
-static inline void __debug_to_serial(const char *p, int n)
-{
- char ch;
-
- FLOWCTL_SET(DTR);
-
- for (; n > 0; n--) {
- LSR_WAIT_FOR(THRE);
- FLOWCTL_WAIT_FOR(CTS);
-
- ch = *p++;
- if (ch == 0x0a) {
- TTYS0_TX = 0x0d;
- LSR_WAIT_FOR(THRE);
- FLOWCTL_WAIT_FOR(CTS);
- }
- TTYS0_TX = ch;
- }
-
- FLOWCTL_CLEAR(DTR);
-}
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* CONFIG_GDBSTUB_ON_TTYSx */
-
-#endif /* _ASM_UNIT_SERIAL_H */
+++ /dev/null
-/* ASB2305-specific timer specifications
- *
- * Copyright (C) 2007, 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_UNIT_TIMEX_H
-#define _ASM_UNIT_TIMEX_H
-
-#include <asm/timer-regs.h>
-#include <unit/clock.h>
-#include <asm/param.h>
-
-/*
- * jiffies counter specifications
- */
-
-#define TMJCBR_MAX 0xffff
-#define TMJCIRQ TM1IRQ
-#define TMJCICR TM1ICR
-
-#ifndef __ASSEMBLY__
-
-#define MN10300_SRC_IOCLK MN10300_IOCLK
-
-#ifndef HZ
-# error HZ undeclared.
-#endif /* !HZ */
-/* use as little prescaling as possible to avoid losing accuracy */
-#if (MN10300_SRC_IOCLK + HZ / 2) / HZ - 1 <= TMJCBR_MAX
-# define IOCLK_PRESCALE 1
-# define JC_TIMER_CLKSRC TM0MD_SRC_IOCLK
-# define TSC_TIMER_CLKSRC TM4MD_SRC_IOCLK
-#elif (MN10300_SRC_IOCLK / 8 + HZ / 2) / HZ - 1 <= TMJCBR_MAX
-# define IOCLK_PRESCALE 8
-# define JC_TIMER_CLKSRC TM0MD_SRC_IOCLK_8
-# define TSC_TIMER_CLKSRC TM4MD_SRC_IOCLK_8
-#elif (MN10300_SRC_IOCLK / 32 + HZ / 2) / HZ - 1 <= TMJCBR_MAX
-# define IOCLK_PRESCALE 32
-# define JC_TIMER_CLKSRC TM0MD_SRC_IOCLK_32
-# define TSC_TIMER_CLKSRC TM4MD_SRC_IOCLK_32
-#else
-# error You lose.
-#endif
-
-#define MN10300_JCCLK (MN10300_SRC_IOCLK / IOCLK_PRESCALE)
-#define MN10300_TSCCLK (MN10300_SRC_IOCLK / IOCLK_PRESCALE)
-
-#define MN10300_JC_PER_HZ ((MN10300_JCCLK + HZ / 2) / HZ)
-#define MN10300_TSC_PER_HZ ((MN10300_TSCCLK + HZ / 2) / HZ)
-
-static inline void stop_jiffies_counter(void)
-{
- u16 tmp;
- TM01MD = JC_TIMER_CLKSRC | TM1MD_SRC_TM0CASCADE << 8;
- tmp = TM01MD;
-}
-
-static inline void reload_jiffies_counter(u32 cnt)
-{
- u32 tmp;
-
- TM01BR = cnt;
- tmp = TM01BR;
-
- TM01MD = JC_TIMER_CLKSRC | \
- TM1MD_SRC_TM0CASCADE << 8 | \
- TM0MD_INIT_COUNTER | \
- TM1MD_INIT_COUNTER << 8;
-
-
- TM01MD = JC_TIMER_CLKSRC | \
- TM1MD_SRC_TM0CASCADE << 8 | \
- TM0MD_COUNT_ENABLE | \
- TM1MD_COUNT_ENABLE << 8;
-
- tmp = TM01MD;
-}
-
-#endif /* !__ASSEMBLY__ */
-
-
-/*
- * timestamp counter specifications
- */
-
-#define TMTSCBR_MAX 0xffffffff
-#define TMTSCBC TM45BC
-
-#ifndef __ASSEMBLY__
-
-static inline void startup_timestamp_counter(void)
-{
- u32 t32;
-
- /* set up timer 4 & 5 cascaded as a 32-bit counter to count real time
- * - count down from 4Gig-1 to 0 and wrap at IOCLK rate
- */
- TM45BR = TMTSCBR_MAX;
- t32 = TM45BR;
-
- TM4MD = TSC_TIMER_CLKSRC;
- TM4MD |= TM4MD_INIT_COUNTER;
- TM4MD &= ~TM4MD_INIT_COUNTER;
- TM4ICR = 0;
- t32 = TM4ICR;
-
- TM5MD = TM5MD_SRC_TM4CASCADE;
- TM5MD |= TM5MD_INIT_COUNTER;
- TM5MD &= ~TM5MD_INIT_COUNTER;
- TM5ICR = 0;
- t32 = TM5ICR;
-
- TM5MD |= TM5MD_COUNT_ENABLE;
- TM4MD |= TM4MD_COUNT_ENABLE;
- t32 = TM5MD;
- t32 = TM4MD;
-}
-
-static inline void shutdown_timestamp_counter(void)
-{
- u8 t8;
- TM4MD = 0;
- TM5MD = 0;
- t8 = TM4MD;
- t8 = TM5MD;
-}
-
-/*
- * we use a cascaded pair of 16-bit down-counting timers to count I/O
- * clock cycles for the purposes of time keeping
- */
-typedef unsigned long cycles_t;
-
-static inline cycles_t read_timestamp_counter(void)
-{
- return (cycles_t)~TMTSCBC;
-}
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* _ASM_UNIT_TIMEX_H */
+++ /dev/null
-/* ASB2305 Peripheral 7-segment LEDs x4 support
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/init.h>
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/intctl-regs.h>
-#include <asm/rtc-regs.h>
-#include <unit/leds.h>
-
-static const u8 asb2305_led_hex_tbl[16] = {
- 0x80, 0xf2, 0x48, 0x60, 0x32, 0x24, 0x04, 0xf0,
- 0x00, 0x20, 0x10, 0x06, 0x8c, 0x42, 0x0c, 0x1c
-};
-
-static const u32 asb2305_led_chase_tbl[6] = {
- ~0x02020202, /* top - segA */
- ~0x04040404, /* right top - segB */
- ~0x08080808, /* right bottom - segC */
- ~0x10101010, /* bottom - segD */
- ~0x20202020, /* left bottom - segE */
- ~0x40404040, /* left top - segF */
-};
-
-static unsigned asb2305_led_chase;
-
-void peripheral_leds7x4_display_dec(unsigned int val, unsigned int points)
-{
- u32 leds;
-
- leds = asb2305_led_hex_tbl[(val/1000) % 10];
- leds <<= 8;
- leds |= asb2305_led_hex_tbl[(val/100) % 10];
- leds <<= 8;
- leds |= asb2305_led_hex_tbl[(val/10) % 10];
- leds <<= 8;
- leds |= asb2305_led_hex_tbl[val % 10];
- leds |= points^0x01010101;
-
- ASB2305_7SEGLEDS = leds;
-}
-
-void peripheral_leds7x4_display_hex(unsigned int val, unsigned int points)
-{
- u32 leds;
-
- leds = asb2305_led_hex_tbl[(val/1000) % 10];
- leds <<= 8;
- leds |= asb2305_led_hex_tbl[(val/100) % 10];
- leds <<= 8;
- leds |= asb2305_led_hex_tbl[(val/10) % 10];
- leds <<= 8;
- leds |= asb2305_led_hex_tbl[val % 10];
- leds |= points^0x01010101;
-
- ASB2305_7SEGLEDS = leds;
-}
-
-void peripheral_leds_display_exception(enum exception_code code)
-{
- u32 leds;
-
- leds = asb2305_led_hex_tbl[(code/0x100) % 0x10];
- leds <<= 8;
- leds |= asb2305_led_hex_tbl[(code/0x10) % 0x10];
- leds <<= 8;
- leds |= asb2305_led_hex_tbl[code % 0x10];
- leds |= 0x6d010101;
-
- ASB2305_7SEGLEDS = leds;
-}
-
-void peripheral_leds7x4_display_minssecs(unsigned int time, unsigned int points)
-{
- u32 leds;
-
- leds = asb2305_led_hex_tbl[(time/600) % 6];
- leds <<= 8;
- leds |= asb2305_led_hex_tbl[(time/60) % 10];
- leds <<= 8;
- leds |= asb2305_led_hex_tbl[(time/10) % 6];
- leds <<= 8;
- leds |= asb2305_led_hex_tbl[time % 10];
- leds |= points^0x01010101;
-
- ASB2305_7SEGLEDS = leds;
-}
-
-void peripheral_leds7x4_display_rtc(void)
-{
- unsigned int clock;
- u8 mins, secs;
-
- mins = RTMCR;
- secs = RTSCR;
-
- clock = ((mins & 0xf0) >> 4);
- clock *= 10;
- clock += (mins & 0x0f);
- clock *= 6;
-
- clock += ((secs & 0xf0) >> 4);
- clock *= 10;
- clock += (secs & 0x0f);
-
- peripheral_leds7x4_display_minssecs(clock, 0);
-}
-
-void peripheral_leds_led_chase(void)
-{
- ASB2305_7SEGLEDS = asb2305_led_chase_tbl[asb2305_led_chase];
- asb2305_led_chase++;
- if (asb2305_led_chase >= 6)
- asb2305_led_chase = 0;
-}
+++ /dev/null
-/* ASB2305 PCI resource stuff
- *
- * Copyright (C) 2001 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- * - Derived from arch/i386/pci-i386.c
- * - Copyright 1997--2000 Martin Mares <mj@suse.cz>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/errno.h>
-#include "pci-asb2305.h"
-
-/*
- * We need to avoid collisions with `mirrored' VGA ports
- * and other strange ISA hardware, so we always want the
- * addresses to be allocated in the 0x000-0x0ff region
- * modulo 0x400.
- *
- * Why? Because some silly external IO cards only decode
- * the low 10 bits of the IO address. The 0x00-0xff region
- * is reserved for motherboard devices that decode all 16
- * bits, so it's ok to allocate at, say, 0x2800-0x28ff,
- * but we want to try to avoid allocating at 0x2900-0x2bff
- * which might have be mirrored at 0x0100-0x03ff..
- */
-resource_size_t pcibios_align_resource(void *data, const struct resource *res,
- resource_size_t size, resource_size_t align)
-{
- resource_size_t start = res->start;
-
-#if 0
- struct pci_dev *dev = data;
-
- printk(KERN_DEBUG
- "### PCIBIOS_ALIGN_RESOURCE(%s,,{%08lx-%08lx,%08lx},%lx)\n",
- pci_name(dev),
- res->start,
- res->end,
- res->flags,
- size
- );
-#endif
-
- if ((res->flags & IORESOURCE_IO) && (start & 0x300))
- start = (start + 0x3ff) & ~0x3ff;
-
- return start;
-}
-
-
-/*
- * Handle resources of PCI devices. If the world were perfect, we could
- * just allocate all the resource regions and do nothing more. It isn't.
- * On the other hand, we cannot just re-allocate all devices, as it would
- * require us to know lots of host bridge internals. So we attempt to
- * keep as much of the original configuration as possible, but tweak it
- * when it's found to be wrong.
- *
- * Known BIOS problems we have to work around:
- * - I/O or memory regions not configured
- * - regions configured, but not enabled in the command register
- * - bogus I/O addresses above 64K used
- * - expansion ROMs left enabled (this may sound harmless, but given
- * the fact the PCI specs explicitly allow address decoders to be
- * shared between expansion ROMs and other resource regions, it's
- * at least dangerous)
- *
- * Our solution:
- * (1) Allocate resources for all buses behind PCI-to-PCI bridges.
- * This gives us fixed barriers on where we can allocate.
- * (2) Allocate resources for all enabled devices. If there is
- * a collision, just mark the resource as unallocated. Also
- * disable expansion ROMs during this step.
- * (3) Try to allocate resources for disabled devices. If the
- * resources were assigned correctly, everything goes well,
- * if they weren't, they won't disturb allocation of other
- * resources.
- * (4) Assign new addresses to resources which were either
- * not configured at all or misconfigured. If explicitly
- * requested by the user, configure expansion ROM address
- * as well.
- */
-static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
-{
- struct pci_bus *bus;
- struct pci_dev *dev;
- int idx;
- struct resource *r;
-
- /* Depth-First Search on bus tree */
- list_for_each_entry(bus, bus_list, node) {
- dev = bus->self;
- if (dev) {
- for (idx = PCI_BRIDGE_RESOURCES;
- idx < PCI_NUM_RESOURCES;
- idx++) {
- r = &dev->resource[idx];
- if (!r->flags)
- continue;
- if (!r->start ||
- pci_claim_bridge_resource(dev, idx) < 0) {
- printk(KERN_ERR "PCI:"
- " Cannot allocate resource"
- " region %d of bridge %s\n",
- idx, pci_name(dev));
- /* Something is wrong with the region.
- * Invalidate the resource to prevent
- * child resource allocations in this
- * range. */
- r->start = r->end = 0;
- r->flags = 0;
- }
- }
- }
- pcibios_allocate_bus_resources(&bus->children);
- }
-}
-
-static void __init pcibios_allocate_resources(int pass)
-{
- struct pci_dev *dev = NULL;
- int idx, disabled;
- u16 command;
- struct resource *r;
-
- for_each_pci_dev(dev) {
- pci_read_config_word(dev, PCI_COMMAND, &command);
- for (idx = 0; idx < 6; idx++) {
- r = &dev->resource[idx];
- if (r->parent) /* Already allocated */
- continue;
- if (!r->start) /* Address not assigned */
- continue;
- if (r->flags & IORESOURCE_IO)
- disabled = !(command & PCI_COMMAND_IO);
- else
- disabled = !(command & PCI_COMMAND_MEMORY);
- if (pass == disabled) {
- DBG("PCI[%s]: Resource %08lx-%08lx"
- " (f=%lx, d=%d, p=%d)\n",
- pci_name(dev), r->start, r->end, r->flags,
- disabled, pass);
- if (pci_claim_resource(dev, idx) < 0) {
- printk(KERN_ERR "PCI:"
- " Cannot allocate resource"
- " region %d of device %s\n",
- idx, pci_name(dev));
- /* We'll assign a new address later */
- r->end -= r->start;
- r->start = 0;
- }
- }
- }
- if (!pass) {
- r = &dev->resource[PCI_ROM_RESOURCE];
- if (r->flags & IORESOURCE_ROM_ENABLE) {
- /* Turn the ROM off, leave the resource region,
- * but keep it unregistered. */
- u32 reg;
- DBG("PCI: Switching off ROM of %s\n",
- pci_name(dev));
- r->flags &= ~IORESOURCE_ROM_ENABLE;
- pci_read_config_dword(
- dev, dev->rom_base_reg, ®);
- pci_write_config_dword(
- dev, dev->rom_base_reg,
- reg & ~PCI_ROM_ADDRESS_ENABLE);
- }
- }
- }
-}
-
-static int __init pcibios_assign_resources(void)
-{
- struct pci_dev *dev = NULL;
- struct resource *r;
-
- /* Try to use BIOS settings for ROMs, otherwise let
- pci_assign_unassigned_resources() allocate the new
- addresses. */
- for_each_pci_dev(dev) {
- r = &dev->resource[PCI_ROM_RESOURCE];
- if (!r->flags || !r->start)
- continue;
- if (pci_claim_resource(dev, PCI_ROM_RESOURCE) < 0) {
- r->end -= r->start;
- r->start = 0;
- }
- }
-
- pci_assign_unassigned_resources();
-
- return 0;
-}
-
-fs_initcall(pcibios_assign_resources);
-
-void __init pcibios_resource_survey(void)
-{
- DBG("PCI: Allocating resources\n");
- pcibios_allocate_bus_resources(&pci_root_buses);
- pcibios_allocate_resources(0);
- pcibios_allocate_resources(1);
-}
+++ /dev/null
-/* ASB2305 Arch-specific PCI declarations
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- * Derived from: arch/i386/kernel/pci-i386.h: (c) 1999 Martin Mares <mj@ucw.cz>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _PCI_ASB2305_H
-#define _PCI_ASB2305_H
-
-#undef DEBUG
-
-#ifdef DEBUG
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
-extern unsigned int pci_probe;
-
-/* pci-asb2305.c */
-
-extern void pcibios_resource_survey(void);
-
-/* pci.c */
-
-extern struct pci_ops *pci_root_ops;
-
-/* pci-irq.c */
-
-struct irq_info {
- u8 bus, devfn; /* Bus, device and function */
- struct {
- u8 link; /* IRQ line ID, chipset dependent,
- * 0=not routed */
- u16 bitmap; /* Available IRQs */
- } __attribute__((packed)) irq[4];
- u8 slot; /* Slot number, 0=onboard */
- u8 rfu;
-} __attribute__((packed));
-
-struct irq_routing_table {
- u32 signature; /* PIRQ_SIGNATURE should be here */
- u16 version; /* PIRQ_VERSION */
- u16 size; /* Table size in bytes */
- u8 rtr_bus, rtr_devfn; /* Where the interrupt router lies */
- u16 exclusive_irqs; /* IRQs devoted exclusively to PCI usage */
- u16 rtr_vendor, rtr_device; /* Vendor and device ID of interrupt router */
- u32 miniport_data; /* Crap */
- u8 rfu[11];
- u8 checksum; /* Modulo 256 checksum must give zero */
- struct irq_info slots[0];
-} __attribute__((packed));
-
-extern unsigned int pcibios_irq_mask;
-
-extern void pcibios_irq_init(void);
-extern void pcibios_fixup_irqs(void);
-extern void pcibios_enable_irq(struct pci_dev *dev);
-
-#endif /* PCI_ASB2305_H */
+++ /dev/null
-/* PCI IRQ routing on the MN103E010 based ASB2305
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- *
- * This is simple: All PCI interrupts route through the CPU's XIRQ1 pin [IRQ 35]
- */
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <asm/io.h>
-#include <asm/smp.h>
-#include "pci-asb2305.h"
-
-void __init pcibios_irq_init(void)
-{
-}
-
-void __init pcibios_fixup_irqs(void)
-{
- struct pci_dev *dev = NULL;
- u8 line, pin;
-
- for_each_pci_dev(dev) {
- pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
- if (pin) {
- dev->irq = XIRQ1;
- pci_write_config_byte(dev, PCI_INTERRUPT_LINE,
- dev->irq);
- }
- pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &line);
- }
-}
-
-void pcibios_enable_irq(struct pci_dev *dev)
-{
- pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
-}
+++ /dev/null
-/* ASB2305 PCI support
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- * Derived from arch/i386/kernel/pci-pc.c
- * (c) 1999--2000 Martin Mares <mj@suse.cz>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include "pci-asb2305.h"
-
-unsigned int pci_probe = 1;
-
-struct pci_ops *pci_root_ops;
-
-/*
- * The accessible PCI window does not cover the entire CPU address space, but
- * there are devices we want to access outside of that window, so we need to
- * insert specific PCI bus resources instead of using the platform-level bus
- * resources directly for the PCI root bus.
- *
- * These are configured and inserted by pcibios_init().
- */
-static struct resource pci_ioport_resource = {
- .name = "PCI IO",
- .start = 0xbe000000,
- .end = 0xbe03ffff,
- .flags = IORESOURCE_IO,
-};
-
-static struct resource pci_iomem_resource = {
- .name = "PCI mem",
- .start = 0xb8000000,
- .end = 0xbbffffff,
- .flags = IORESOURCE_MEM,
-};
-
-/*
- * Functions for accessing PCI configuration space
- */
-
-#define CONFIG_CMD(bus, devfn, where) \
- (0x80000000 | (bus->number << 16) | (devfn << 8) | (where & ~3))
-
-#define MEM_PAGING_REG (*(volatile __u32 *) 0xBFFFFFF4)
-#define CONFIG_ADDRESS (*(volatile __u32 *) 0xBFFFFFF8)
-#define CONFIG_DATAL(X) (*(volatile __u32 *) 0xBFFFFFFC)
-#define CONFIG_DATAW(X) (*(volatile __u16 *) (0xBFFFFFFC + ((X) & 2)))
-#define CONFIG_DATAB(X) (*(volatile __u8 *) (0xBFFFFFFC + ((X) & 3)))
-
-#define BRIDGEREGB(X) (*(volatile __u8 *) (0xBE040000 + (X)))
-#define BRIDGEREGW(X) (*(volatile __u16 *) (0xBE040000 + (X)))
-#define BRIDGEREGL(X) (*(volatile __u32 *) (0xBE040000 + (X)))
-
-static inline int __query(const struct pci_bus *bus, unsigned int devfn)
-{
-#if 0
- return bus->number == 0 && (devfn == PCI_DEVFN(0, 0));
- return bus->number == 1;
- return bus->number == 0 &&
- (devfn == PCI_DEVFN(2, 0) || devfn == PCI_DEVFN(3, 0));
-#endif
- return 1;
-}
-
-/*
- *
- */
-static int pci_ampci_read_config_byte(struct pci_bus *bus, unsigned int devfn,
- int where, u32 *_value)
-{
- u32 rawval, value;
-
- if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) {
- value = BRIDGEREGB(where);
- __pcbdebug("=> %02hx", &BRIDGEREGL(where), value);
- } else {
- CONFIG_ADDRESS = CONFIG_CMD(bus, devfn, where);
- rawval = CONFIG_ADDRESS;
- value = CONFIG_DATAB(where);
- if (__query(bus, devfn))
- __pcidebug("=> %02hx", bus, devfn, where, value);
- }
-
- *_value = value;
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int pci_ampci_read_config_word(struct pci_bus *bus, unsigned int devfn,
- int where, u32 *_value)
-{
- u32 rawval, value;
-
- if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) {
- value = BRIDGEREGW(where);
- __pcbdebug("=> %04hx", &BRIDGEREGL(where), value);
- } else {
- CONFIG_ADDRESS = CONFIG_CMD(bus, devfn, where);
- rawval = CONFIG_ADDRESS;
- value = CONFIG_DATAW(where);
- if (__query(bus, devfn))
- __pcidebug("=> %04hx", bus, devfn, where, value);
- }
-
- *_value = value;
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int pci_ampci_read_config_dword(struct pci_bus *bus, unsigned int devfn,
- int where, u32 *_value)
-{
- u32 rawval, value;
-
- if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) {
- value = BRIDGEREGL(where);
- __pcbdebug("=> %08x", &BRIDGEREGL(where), value);
- } else {
- CONFIG_ADDRESS = CONFIG_CMD(bus, devfn, where);
- rawval = CONFIG_ADDRESS;
- value = CONFIG_DATAL(where);
- if (__query(bus, devfn))
- __pcidebug("=> %08x", bus, devfn, where, value);
- }
-
- *_value = value;
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int pci_ampci_write_config_byte(struct pci_bus *bus, unsigned int devfn,
- int where, u8 value)
-{
- u32 rawval;
-
- if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) {
- __pcbdebug("<= %02x", &BRIDGEREGB(where), value);
- BRIDGEREGB(where) = value;
- } else {
- if (bus->number == 0 &&
- (devfn == PCI_DEVFN(2, 0) || devfn == PCI_DEVFN(3, 0))
- )
- __pcidebug("<= %02x", bus, devfn, where, value);
- CONFIG_ADDRESS = CONFIG_CMD(bus, devfn, where);
- rawval = CONFIG_ADDRESS;
- CONFIG_DATAB(where) = value;
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int pci_ampci_write_config_word(struct pci_bus *bus, unsigned int devfn,
- int where, u16 value)
-{
- u32 rawval;
-
- if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) {
- __pcbdebug("<= %04hx", &BRIDGEREGW(where), value);
- BRIDGEREGW(where) = value;
- } else {
- if (__query(bus, devfn))
- __pcidebug("<= %04hx", bus, devfn, where, value);
- CONFIG_ADDRESS = CONFIG_CMD(bus, devfn, where);
- rawval = CONFIG_ADDRESS;
- CONFIG_DATAW(where) = value;
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int pci_ampci_write_config_dword(struct pci_bus *bus, unsigned int devfn,
- int where, u32 value)
-{
- u32 rawval;
-
- if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) {
- __pcbdebug("<= %08x", &BRIDGEREGL(where), value);
- BRIDGEREGL(where) = value;
- } else {
- if (__query(bus, devfn))
- __pcidebug("<= %08x", bus, devfn, where, value);
- CONFIG_ADDRESS = CONFIG_CMD(bus, devfn, where);
- rawval = CONFIG_ADDRESS;
- CONFIG_DATAL(where) = value;
- }
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int pci_ampci_read_config(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 *val)
-{
- switch (size) {
- case 1:
- return pci_ampci_read_config_byte(bus, devfn, where, val);
- case 2:
- return pci_ampci_read_config_word(bus, devfn, where, val);
- case 4:
- return pci_ampci_read_config_dword(bus, devfn, where, val);
- default:
- BUG();
- return -EOPNOTSUPP;
- }
-}
-
-static int pci_ampci_write_config(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 val)
-{
- switch (size) {
- case 1:
- return pci_ampci_write_config_byte(bus, devfn, where, val);
- case 2:
- return pci_ampci_write_config_word(bus, devfn, where, val);
- case 4:
- return pci_ampci_write_config_dword(bus, devfn, where, val);
- default:
- BUG();
- return -EOPNOTSUPP;
- }
-}
-
-static struct pci_ops pci_direct_ampci = {
- .read = pci_ampci_read_config,
- .write = pci_ampci_write_config,
-};
-
-/*
- * Before we decide to use direct hardware access mechanisms, we try to do some
- * trivial checks to ensure it at least _seems_ to be working -- we just test
- * whether bus 00 contains a host bridge (this is similar to checking
- * techniques used in XFree86, but ours should be more reliable since we
- * attempt to make use of direct access hints provided by the PCI BIOS).
- *
- * This should be close to trivial, but it isn't, because there are buggy
- * chipsets (yes, you guessed it, by Intel and Compaq) that have no class ID.
- */
-static int __init pci_sanity_check(struct pci_ops *o)
-{
- struct pci_bus bus; /* Fake bus and device */
- u32 x;
-
- bus.number = 0;
-
- if ((!o->read(&bus, 0, PCI_CLASS_DEVICE, 2, &x) &&
- (x == PCI_CLASS_BRIDGE_HOST || x == PCI_CLASS_DISPLAY_VGA)) ||
- (!o->read(&bus, 0, PCI_VENDOR_ID, 2, &x) &&
- (x == PCI_VENDOR_ID_INTEL || x == PCI_VENDOR_ID_COMPAQ)))
- return 1;
-
- printk(KERN_ERR "PCI: Sanity check failed\n");
- return 0;
-}
-
-static int __init pci_check_direct(void)
-{
- unsigned long flags;
-
- local_irq_save(flags);
-
- /*
- * Check if access works.
- */
- if (pci_sanity_check(&pci_direct_ampci)) {
- local_irq_restore(flags);
- printk(KERN_INFO "PCI: Using configuration ampci\n");
- request_mem_region(0xBE040000, 256, "AMPCI bridge");
- request_mem_region(0xBFFFFFF4, 12, "PCI ampci");
- request_mem_region(0xBC000000, 32 * 1024 * 1024, "PCI SRAM");
- return 0;
- }
-
- local_irq_restore(flags);
- return -ENODEV;
-}
-
-static void pcibios_fixup_device_resources(struct pci_dev *dev)
-{
- int idx;
-
- if (!dev->bus)
- return;
-
- for (idx = 0; idx < PCI_BRIDGE_RESOURCES; idx++) {
- struct resource *r = &dev->resource[idx];
-
- if (!r->flags || r->parent || !r->start)
- continue;
-
- pci_claim_resource(dev, idx);
- }
-}
-
-static void pcibios_fixup_bridge_resources(struct pci_dev *dev)
-{
- int idx;
-
- if (!dev->bus)
- return;
-
- for (idx = PCI_BRIDGE_RESOURCES; idx < PCI_NUM_RESOURCES; idx++) {
- struct resource *r = &dev->resource[idx];
-
- if (!r->flags || r->parent || !r->start)
- continue;
-
- pci_claim_bridge_resource(dev, idx);
- }
-}
-
-/*
- * Called after each bus is probed, but before its children
- * are examined.
- */
-void pcibios_fixup_bus(struct pci_bus *bus)
-{
- struct pci_dev *dev;
-
- if (bus->self) {
- pci_read_bridge_bases(bus);
- pcibios_fixup_bridge_resources(bus->self);
- }
-
- list_for_each_entry(dev, &bus->devices, bus_list)
- pcibios_fixup_device_resources(dev);
-}
-
-/*
- * Initialization. Try all known PCI access methods. Note that we support
- * using both PCI BIOS and direct access: in such cases, we use I/O ports
- * to access config space, but we still keep BIOS order of cards to be
- * compatible with 2.0.X. This should go away some day.
- */
-static int __init pcibios_init(void)
-{
- resource_size_t io_offset, mem_offset;
- LIST_HEAD(resources);
- struct pci_bus *bus;
-
- ioport_resource.start = 0xA0000000;
- ioport_resource.end = 0xDFFFFFFF;
- iomem_resource.start = 0xA0000000;
- iomem_resource.end = 0xDFFFFFFF;
-
- if (insert_resource(&iomem_resource, &pci_iomem_resource) < 0)
- panic("Unable to insert PCI IOMEM resource\n");
- if (insert_resource(&ioport_resource, &pci_ioport_resource) < 0)
- panic("Unable to insert PCI IOPORT resource\n");
-
- if (!pci_probe)
- return 0;
-
- if (pci_check_direct() < 0) {
- printk(KERN_WARNING "PCI: No PCI bus detected\n");
- return 0;
- }
-
- printk(KERN_INFO "PCI: Probing PCI hardware [mempage %08x]\n",
- MEM_PAGING_REG);
-
- io_offset = pci_ioport_resource.start -
- (pci_ioport_resource.start & 0x00ffffff);
- mem_offset = pci_iomem_resource.start -
- ((pci_iomem_resource.start & 0x03ffffff) | MEM_PAGING_REG);
-
- pci_add_resource_offset(&resources, &pci_ioport_resource, io_offset);
- pci_add_resource_offset(&resources, &pci_iomem_resource, mem_offset);
- bus = pci_scan_root_bus(NULL, 0, &pci_direct_ampci, NULL, &resources);
- if (!bus)
- return 0;
-
- pcibios_irq_init();
- pcibios_fixup_irqs();
- pcibios_resource_survey();
- pci_bus_add_devices(bus);
- return 0;
-}
-
-arch_initcall(pcibios_init);
-
-char *__init pcibios_setup(char *str)
-{
- if (!strcmp(str, "off")) {
- pci_probe = 0;
- return NULL;
- }
-
- return str;
-}
-
-int pcibios_enable_device(struct pci_dev *dev, int mask)
-{
- int err;
-
- err = pci_enable_resources(dev, mask);
- if (err == 0)
- pcibios_enable_irq(dev);
- return err;
-}
-
-/*
- * disable the ethernet chipset
- */
-static void __init unit_disable_pcnet(struct pci_bus *bus, struct pci_ops *o)
-{
- u32 x;
-
- bus->number = 0;
-
- o->read (bus, PCI_DEVFN(2, 0), PCI_VENDOR_ID, 4, &x);
- o->read (bus, PCI_DEVFN(2, 0), PCI_COMMAND, 2, &x);
- x |= PCI_COMMAND_MASTER |
- PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
- PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
- o->write(bus, PCI_DEVFN(2, 0), PCI_COMMAND, 2, x);
- o->read (bus, PCI_DEVFN(2, 0), PCI_COMMAND, 2, &x);
- o->write(bus, PCI_DEVFN(2, 0), PCI_BASE_ADDRESS_0, 4, 0x00030001);
- o->read (bus, PCI_DEVFN(2, 0), PCI_BASE_ADDRESS_0, 4, &x);
-
-#define RDP (*(volatile u32 *) 0xBE030010)
-#define RAP (*(volatile u32 *) 0xBE030014)
-#define __set_RAP(X) do { RAP = (X); x = RAP; } while (0)
-#define __set_RDP(X) do { RDP = (X); x = RDP; } while (0)
-#define __get_RDP() ({ RDP & 0xffff; })
-
- __set_RAP(0);
- __set_RDP(0x0004); /* CSR0 = STOP */
-
- __set_RAP(88); /* check CSR88 indicates an Am79C973 */
- BUG_ON(__get_RDP() != 0x5003);
-
- for (x = 0; x < 100; x++)
- asm volatile("nop");
-
- __set_RDP(0x0004); /* CSR0 = STOP */
-}
-
-/*
- * initialise the unit hardware
- */
-asmlinkage void __init unit_pci_init(void)
-{
- struct pci_bus bus; /* Fake bus and device */
- struct pci_ops *o = &pci_direct_ampci;
- u32 x;
-
- set_intr_level(XIRQ1, NUM2GxICR_LEVEL(CONFIG_PCI_IRQ_LEVEL));
-
- memset(&bus, 0, sizeof(bus));
-
- MEM_PAGING_REG = 0xE8000000;
-
- /* we need to set up the bridge _now_ or we won't be able to access the
- * PCI config registers
- */
- BRIDGEREGW(PCI_COMMAND) |=
- PCI_COMMAND_SERR | PCI_COMMAND_PARITY |
- PCI_COMMAND_MEMORY | PCI_COMMAND_IO | PCI_COMMAND_MASTER;
- BRIDGEREGW(PCI_STATUS) = 0xF800;
- BRIDGEREGB(PCI_LATENCY_TIMER) = 0x10;
- BRIDGEREGL(PCI_BASE_ADDRESS_0) = 0x80000000;
- BRIDGEREGB(PCI_INTERRUPT_LINE) = 1;
- BRIDGEREGL(0x48) = 0x98000000; /* AMPCI base addr */
- BRIDGEREGB(0x41) = 0x00; /* secondary bus
- * number */
- BRIDGEREGB(0x42) = 0x01; /* subordinate bus
- * number */
- BRIDGEREGB(0x44) = 0x01;
- BRIDGEREGL(0x50) = 0x00000001;
- BRIDGEREGL(0x58) = 0x00001002;
- BRIDGEREGL(0x5C) = 0x00000011;
-
- /* we also need to set up the PCI-PCI bridge */
- bus.number = 0;
-
- /* IO: 0x00000000-0x00020000 */
- o->read (&bus, PCI_DEVFN(3, 0), PCI_COMMAND, 2, &x);
- x |= PCI_COMMAND_MASTER |
- PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
- PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
- o->write(&bus, PCI_DEVFN(3, 0), PCI_COMMAND, 2, x);
-
- o->read (&bus, PCI_DEVFN(3, 0), PCI_IO_BASE, 1, &x);
- o->read (&bus, PCI_DEVFN(3, 0), PCI_IO_BASE_UPPER16, 4, &x);
- o->read (&bus, PCI_DEVFN(3, 0), PCI_MEMORY_BASE, 4, &x);
- o->read (&bus, PCI_DEVFN(3, 0), PCI_PREF_MEMORY_BASE, 4, &x);
-
- o->write(&bus, PCI_DEVFN(3, 0), PCI_IO_BASE, 1, 0x01);
- o->read (&bus, PCI_DEVFN(3, 0), PCI_IO_BASE, 1, &x);
- o->write(&bus, PCI_DEVFN(3, 0), PCI_IO_BASE_UPPER16, 4, 0x00020000);
- o->read (&bus, PCI_DEVFN(3, 0), PCI_IO_BASE_UPPER16, 4, &x);
- o->write(&bus, PCI_DEVFN(3, 0), PCI_MEMORY_BASE, 4, 0xEBB0EA00);
- o->read (&bus, PCI_DEVFN(3, 0), PCI_MEMORY_BASE, 4, &x);
- o->write(&bus, PCI_DEVFN(3, 0), PCI_PREF_MEMORY_BASE, 4, 0xE9F0E800);
- o->read (&bus, PCI_DEVFN(3, 0), PCI_PREF_MEMORY_BASE, 4, &x);
-
- unit_disable_pcnet(&bus, o);
-}
+++ /dev/null
-/* ASB2305 Initialisation
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/setup.h>
-#include <asm/processor.h>
-#include <asm/intctl-regs.h>
-#include <asm/serial-regs.h>
-#include <unit/serial.h>
-
-/*
- * initialise some of the unit hardware before gdbstub is set up
- */
-asmlinkage void __init unit_init(void)
-{
-#ifndef CONFIG_GDBSTUB_ON_TTYSx
- /* set the 16550 interrupt line to level 3 if not being used for GDB */
-#ifdef CONFIG_EXT_SERIAL_IRQ_LEVEL
- set_intr_level(XIRQ0, NUM2GxICR_LEVEL(CONFIG_EXT_SERIAL_IRQ_LEVEL));
-#endif
-#endif /* CONFIG_GDBSTUB_ON_TTYSx */
-}
-
-/*
- * initialise the rest of the unit hardware after gdbstub is ready
- */
-void __init unit_setup(void)
-{
-#ifdef CONFIG_PCI
- unit_pci_init();
-#endif
-}
-
-/*
- * initialise the external interrupts used by a unit of this type
- */
-void __init unit_init_IRQ(void)
-{
- unsigned int extnum;
-
- for (extnum = 0; extnum < NR_XIRQS; extnum++) {
- switch (GET_XIRQ_TRIGGER(extnum)) {
- case XIRQ_TRIGGER_HILEVEL:
- case XIRQ_TRIGGER_LOWLEVEL:
- mn10300_set_lateack_irq_type(XIRQ2IRQ(extnum));
- break;
- default:
- break;
- }
- }
-}
+++ /dev/null
-#
-# Makefile for the linux kernel.
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-# Note 2! The CFLAGS definitions are now in the main makefile...
-
-obj-y := unit-init.o leds.o irq-fpga.o
-
-obj-$(CONFIG_SMSC911X) += smsc911x.o
+++ /dev/null
-/* clock.h: unit-specific clocks
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * Modified by Matsushita Electric Industrial Co., Ltd.
- * Modifications:
- * 23-Feb-2007 MEI Add define for watchdog timer.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _ASM_UNIT_CLOCK_H
-#define _ASM_UNIT_CLOCK_H
-
-#ifndef __ASSEMBLY__
-
-#define MN10300_IOCLK 100000000UL /* for DDR800 */
-/*#define MN10300_IOCLK 83333333UL */ /* for DDR667 */
-#define MN10300_IOBCLK MN10300_IOCLK /* IOBCLK is equal to IOCLK */
-
-#endif /* !__ASSEMBLY__ */
-
-#define MN10300_WDCLK 27000000UL
-
-#endif /* _ASM_UNIT_CLOCK_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-/* ASB2364 FPGA registers
- */
-
-#ifndef _ASM_UNIT_FPGA_REGS_H
-#define _ASM_UNIT_FPGA_REGS_H
-
-#include <asm/cpu-regs.h>
-
-#ifdef __KERNEL__
-
-#define ASB2364_FPGA_REG_RESET_LAN __SYSREG(0xa9001300, u16)
-#define ASB2364_FPGA_REG_RESET_UART __SYSREG(0xa9001304, u16)
-#define ASB2364_FPGA_REG_RESET_I2C __SYSREG(0xa9001308, u16)
-#define ASB2364_FPGA_REG_RESET_USB __SYSREG(0xa900130c, u16)
-#define ASB2364_FPGA_REG_RESET_AV __SYSREG(0xa9001310, u16)
-
-#define ASB2364_FPGA_REG_IRQ(X) __SYSREG(0xa9001510+((X)*4), u16)
-#define ASB2364_FPGA_REG_IRQ_LAN ASB2364_FPGA_REG_IRQ(0)
-#define ASB2364_FPGA_REG_IRQ_UART ASB2364_FPGA_REG_IRQ(1)
-#define ASB2364_FPGA_REG_IRQ_I2C ASB2364_FPGA_REG_IRQ(2)
-#define ASB2364_FPGA_REG_IRQ_USB ASB2364_FPGA_REG_IRQ(3)
-#define ASB2364_FPGA_REG_IRQ_FPGA ASB2364_FPGA_REG_IRQ(5)
-
-#define ASB2364_FPGA_REG_MASK(X) __SYSREG(0xa9001590+((X)*4), u16)
-#define ASB2364_FPGA_REG_MASK_LAN ASB2364_FPGA_REG_MASK(0)
-#define ASB2364_FPGA_REG_MASK_UART ASB2364_FPGA_REG_MASK(1)
-#define ASB2364_FPGA_REG_MASK_I2C ASB2364_FPGA_REG_MASK(2)
-#define ASB2364_FPGA_REG_MASK_USB ASB2364_FPGA_REG_MASK(3)
-#define ASB2364_FPGA_REG_MASK_FPGA ASB2364_FPGA_REG_MASK(5)
-
-#define ASB2364_FPGA_REG_CPLD5_SET1 __SYSREG(0xa9002500, u16)
-#define ASB2364_FPGA_REG_CPLD5_SET2 __SYSREG(0xa9002504, u16)
-#define ASB2364_FPGA_REG_CPLD6_SET1 __SYSREG(0xa9002600, u16)
-#define ASB2364_FPGA_REG_CPLD6_SET2 __SYSREG(0xa9002604, u16)
-#define ASB2364_FPGA_REG_CPLD7_SET1 __SYSREG(0xa9002700, u16)
-#define ASB2364_FPGA_REG_CPLD7_SET2 __SYSREG(0xa9002704, u16)
-#define ASB2364_FPGA_REG_CPLD8_SET1 __SYSREG(0xa9002800, u16)
-#define ASB2364_FPGA_REG_CPLD8_SET2 __SYSREG(0xa9002804, u16)
-#define ASB2364_FPGA_REG_CPLD9_SET1 __SYSREG(0xa9002900, u16)
-#define ASB2364_FPGA_REG_CPLD9_SET2 __SYSREG(0xa9002904, u16)
-#define ASB2364_FPGA_REG_CPLD10_SET1 __SYSREG(0xa9002a00, u16)
-#define ASB2364_FPGA_REG_CPLD10_SET2 __SYSREG(0xa9002a04, u16)
-
-#define SyncExBus() \
- do { \
- unsigned short w; \
- w = *(volatile short *)0xa9000000; \
- } while (0)
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_UNIT_FPGA_REGS_H */
+++ /dev/null
-/* ASB2364 FPGA irq numbers
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _UNIT_IRQ_H
-#define _UNIT_IRQ_H
-
-#ifndef __ASSEMBLY__
-
-#ifdef CONFIG_SMP
-#define NR_CPU_IRQS GxICR_NUM_EXT_IRQS
-#else
-#define NR_CPU_IRQS GxICR_NUM_IRQS
-#endif
-
-enum {
- FPGA_LAN_IRQ = NR_CPU_IRQS,
- FPGA_UART_IRQ,
- FPGA_I2C_IRQ,
- FPGA_USB_IRQ,
- FPGA_RESERVED_IRQ,
- FPGA_FPGA_IRQ,
- NR_IRQS
-};
-
-extern void __init irq_fpga_init(void);
-
-#endif /* !__ASSEMBLY__ */
-#endif /* _UNIT_IRQ_H */
+++ /dev/null
-/* Unit-specific leds
- *
- * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _ASM_UNIT_LEDS_H
-#define _ASM_UNIT_LEDS_H
-
-#include <asm/pio-regs.h>
-#include <asm/cpu-regs.h>
-#include <asm/exceptions.h>
-
-#define MN10300_USE_7SEGLEDS 0
-
-#define ASB2364_7SEGLEDS __SYSREG(0xA9001630, u32)
-
-/*
- * use the 7-segment LEDs to indicate states
- */
-
-#if MN10300_USE_7SEGLEDS
-/* flip the 7-segment LEDs between "Gdb-" and "----" */
-#define mn10300_set_gdbleds(ONOFF) \
- do { \
- ASB2364_7SEGLEDS = (ONOFF) ? 0x8543077f : 0x7f7f7f7f; \
- } while (0)
-#else
-#define mn10300_set_gdbleds(ONOFF) do {} while (0)
-#endif
-
-#if MN10300_USE_7SEGLEDS
-/* indicate double-fault by displaying "db-f" on the LEDs */
-#define mn10300_set_dbfleds \
- mov 0x43077f1d,d0 ; \
- mov d0,(ASB2364_7SEGLEDS)
-#else
-#define mn10300_set_dbfleds
-#endif
-
-#ifndef __ASSEMBLY__
-extern void peripheral_leds_display_exception(enum exception_code);
-extern void peripheral_leds_led_chase(void);
-extern void peripheral_leds7x4_display_dec(unsigned int, unsigned int);
-extern void peripheral_leds7x4_display_hex(unsigned int, unsigned int);
-extern void debug_to_serial(const char *, int);
-#endif /* __ASSEMBLY__ */
-
-#endif /* _ASM_UNIT_LEDS_H */
+++ /dev/null
-/* Unit-specific 8250 serial ports
- *
- * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _ASM_UNIT_SERIAL_H
-#define _ASM_UNIT_SERIAL_H
-
-#include <asm/cpu-regs.h>
-#include <proc/irq.h>
-#include <unit/fpga-regs.h>
-#include <linux/serial_reg.h>
-
-#define SERIAL_PORT0_BASE_ADDRESS 0xA8200000
-
-#define SERIAL_IRQ XIRQ1 /* single serial (TL16C550C) (Lo) */
-
-/*
- * The ASB2364 has an 12.288 MHz clock
- * for your UART.
- *
- * It'd be nice if someone built a serial card with a 24.576 MHz
- * clock, since the 16550A is capable of handling a top speed of 1.5
- * megabits/second; but this requires the faster clock.
- */
-#define BASE_BAUD (12288000 / 16)
-
-/*
- * dispose of the /dev/ttyS0 and /dev/ttyS1 serial ports
- */
-#ifndef CONFIG_GDBSTUB_ON_TTYSx
-
-#define SERIAL_PORT_DFNS \
- { \
- .baud_base = BASE_BAUD, \
- .irq = SERIAL_IRQ, \
- .flags = STD_COM_FLAGS, \
- .iomem_base = (u8 *) SERIAL_PORT0_BASE_ADDRESS, \
- .iomem_reg_shift = 1, \
- .io_type = SERIAL_IO_MEM, \
- },
-
-#ifndef __ASSEMBLY__
-
-static inline void __debug_to_serial(const char *p, int n)
-{
-}
-
-#endif /* !__ASSEMBLY__ */
-
-#else /* CONFIG_GDBSTUB_ON_TTYSx */
-
-#define SERIAL_PORT_DFNS /* stolen by gdb-stub */
-
-#if defined(CONFIG_GDBSTUB_ON_TTYS0)
-#define GDBPORT_SERIAL_RX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_RX * 2, u8)
-#define GDBPORT_SERIAL_TX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_TX * 2, u8)
-#define GDBPORT_SERIAL_DLL __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLL * 2, u8)
-#define GDBPORT_SERIAL_DLM __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLM * 2, u8)
-#define GDBPORT_SERIAL_IER __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IER * 2, u8)
-#define GDBPORT_SERIAL_IIR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IIR * 2, u8)
-#define GDBPORT_SERIAL_FCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_FCR * 2, u8)
-#define GDBPORT_SERIAL_LCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LCR * 2, u8)
-#define GDBPORT_SERIAL_MCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MCR * 2, u8)
-#define GDBPORT_SERIAL_LSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LSR * 2, u8)
-#define GDBPORT_SERIAL_MSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MSR * 2, u8)
-#define GDBPORT_SERIAL_SCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_SCR * 2, u8)
-#define GDBPORT_SERIAL_IRQ SERIAL_IRQ
-
-#elif defined(CONFIG_GDBSTUB_ON_TTYS1)
-#error The ASB2364 does not have a /dev/ttyS1
-#endif
-
-#ifndef __ASSEMBLY__
-
-static inline void __debug_to_serial(const char *p, int n)
-{
- char ch;
-
-#define LSR_WAIT_FOR(STATE) \
- do {} while (!(GDBPORT_SERIAL_LSR & UART_LSR_##STATE))
-#define FLOWCTL_QUERY(LINE) \
- ({ GDBPORT_SERIAL_MSR & UART_MSR_##LINE; })
-#define FLOWCTL_WAIT_FOR(LINE) \
- do {} while (!(GDBPORT_SERIAL_MSR & UART_MSR_##LINE))
-#define FLOWCTL_CLEAR(LINE) \
- do { GDBPORT_SERIAL_MCR &= ~UART_MCR_##LINE; } while (0)
-#define FLOWCTL_SET(LINE) \
- do { GDBPORT_SERIAL_MCR |= UART_MCR_##LINE; } while (0)
-
- FLOWCTL_SET(DTR);
-
- for (; n > 0; n--) {
- LSR_WAIT_FOR(THRE);
- FLOWCTL_WAIT_FOR(CTS);
-
- ch = *p++;
- if (ch == 0x0a) {
- GDBPORT_SERIAL_TX = 0x0d;
- LSR_WAIT_FOR(THRE);
- FLOWCTL_WAIT_FOR(CTS);
- }
- GDBPORT_SERIAL_TX = ch;
- }
-
- FLOWCTL_CLEAR(DTR);
-}
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* CONFIG_GDBSTUB_ON_TTYSx */
-
-#define SERIAL_INITIALIZE \
-do { \
- /* release reset */ \
- ASB2364_FPGA_REG_RESET_UART = 0x0001; \
- SyncExBus(); \
-} while (0)
-
-#define SERIAL_CHECK_INTERRUPT \
-do { \
- if ((ASB2364_FPGA_REG_IRQ_UART & 0x0001) == 0x0001) { \
- return IRQ_NONE; \
- } \
-} while (0)
-
-#define SERIAL_CLEAR_INTERRUPT \
-do { \
- ASB2364_FPGA_REG_IRQ_UART = 0x0001; \
- SyncExBus(); \
-} while (0)
-
-#define SERIAL_SET_INT_MASK \
-do { \
- ASB2364_FPGA_REG_MASK_UART = 0x0001; \
- SyncExBus(); \
-} while (0)
-
-#define SERIAL_CLEAR_INT_MASK \
-do { \
- ASB2364_FPGA_REG_MASK_UART = 0x0000; \
- SyncExBus(); \
-} while (0)
-
-#endif /* _ASM_UNIT_SERIAL_H */
+++ /dev/null
-/* Support for the SMSC911x NIC
- *
- * Copyright (C) 2006 Matsushita Electric Industrial Co., Ltd.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#ifndef _ASM_UNIT_SMSC911X_H
-#define _ASM_UNIT_SMSC911X_H
-
-#include <linux/netdevice.h>
-#include <proc/irq.h>
-#include <unit/fpga-regs.h>
-
-#define MN10300_USE_EXT_EEPROM
-
-
-#define SMSC911X_BASE 0xA8000000UL
-#define SMSC911X_BASE_END 0xA8000100UL
-#define SMSC911X_IRQ FPGA_LAN_IRQ
-
-/*
- * Allow the FPGA to be initialised by the SMSC911x driver
- */
-#undef SMSC_INITIALIZE
-#define SMSC_INITIALIZE() \
-do { \
- /* release reset */ \
- ASB2364_FPGA_REG_RESET_LAN = 0x0001; \
- SyncExBus(); \
-} while (0)
-
-#ifdef MN10300_USE_EXT_EEPROM
-#include <linux/delay.h>
-#include <unit/clock.h>
-
-#define EEPROM_ADDRESS 0xA0
-#define MAC_OFFSET 0x0008
-#define USE_IIC_CH 0 /* 0 or 1 */
-#define IIC_OFFSET (0x80000 * USE_IIC_CH)
-#define IIC_DTRM __SYSREG(0xd8400000 + IIC_OFFSET, u32)
-#define IIC_DREC __SYSREG(0xd8400004 + IIC_OFFSET, u32)
-#define IIC_MYADD __SYSREG(0xd8400008 + IIC_OFFSET, u32)
-#define IIC_CLK __SYSREG(0xd840000c + IIC_OFFSET, u32)
-#define IIC_BRST __SYSREG(0xd8400010 + IIC_OFFSET, u32)
-#define IIC_HOLD __SYSREG(0xd8400014 + IIC_OFFSET, u32)
-#define IIC_BSTS __SYSREG(0xd8400018 + IIC_OFFSET, u32)
-#define IIC_ICR __SYSREG(0xd4000080 + 4 * USE_IIC_CH, u16)
-
-#define IIC_CLK_PLS ((unsigned short)(MN10300_IOCLK / 100000 - 1))
-#define IIC_CLK_LOW ((unsigned short)(IIC_CLK_PLS / 2))
-
-#define SYS_IIC_DTRM_Bit_STA ((unsigned short)0x0400)
-#define SYS_IIC_DTRM_Bit_STO ((unsigned short)0x0200)
-#define SYS_IIC_DTRM_Bit_ACK ((unsigned short)0x0100)
-#define SYS_IIC_DTRM_Bit_DATA ((unsigned short)0x00FF)
-
-static inline void POLL_INT_REQ(volatile u16 *icr)
-{
- unsigned long flags;
- u16 tmp;
-
- while (!(*icr & GxICR_REQUEST))
- ;
- flags = arch_local_cli_save();
- tmp = *icr;
- *icr = (tmp & GxICR_LEVEL) | GxICR_DETECT;
- tmp = *icr;
- arch_local_irq_restore(flags);
-}
-
-/*
- * Implement the SMSC911x hook for MAC address retrieval
- */
-#undef smsc_get_mac
-static inline int smsc_get_mac(struct net_device *dev)
-{
- unsigned char *mac_buf = dev->dev_addr;
- int i;
- unsigned short value;
- unsigned int data;
- int mac_length = 6;
- int check;
- u16 orig_gicr, tmp;
- unsigned long flags;
-
- /* save original GnICR and clear GnICR.IE */
- flags = arch_local_cli_save();
- orig_gicr = IIC_ICR;
- IIC_ICR = orig_gicr & GxICR_LEVEL;
- tmp = IIC_ICR;
- arch_local_irq_restore(flags);
-
- IIC_MYADD = 0x00000008;
- IIC_CLK = (IIC_CLK_LOW << 16) + (IIC_CLK_PLS);
- /* bus hung recovery */
-
- while (1) {
- check = 0;
- for (i = 0; i < 3; i++) {
- if ((IIC_BSTS & 0x00000003) == 0x00000003)
- check++;
- udelay(3);
- }
-
- if (check == 3) {
- IIC_BRST = 0x00000003;
- break;
- } else {
- for (i = 0; i < 3; i++) {
- IIC_BRST = 0x00000002;
- udelay(8);
- IIC_BRST = 0x00000003;
- udelay(8);
- }
- }
- }
-
- IIC_BRST = 0x00000002;
- IIC_BRST = 0x00000003;
-
- value = SYS_IIC_DTRM_Bit_STA | SYS_IIC_DTRM_Bit_ACK;
- value |= (((unsigned short)EEPROM_ADDRESS & SYS_IIC_DTRM_Bit_DATA) |
- (unsigned short)0x0000);
- IIC_DTRM = value;
- POLL_INT_REQ(&IIC_ICR);
-
- /** send offset of MAC address in EEPROM **/
- IIC_DTRM = (unsigned char)((MAC_OFFSET & 0xFF00) >> 8);
- POLL_INT_REQ(&IIC_ICR);
-
- IIC_DTRM = (unsigned char)(MAC_OFFSET & 0x00FF);
- POLL_INT_REQ(&IIC_ICR);
-
- udelay(1000);
-
- value = SYS_IIC_DTRM_Bit_STA;
- value |= (((unsigned short)EEPROM_ADDRESS & SYS_IIC_DTRM_Bit_DATA) |
- (unsigned short)0x0001);
- IIC_DTRM = value;
- POLL_INT_REQ(&IIC_ICR);
-
- IIC_DTRM = 0x00000000;
- while (mac_length > 0) {
- POLL_INT_REQ(&IIC_ICR);
-
- data = IIC_DREC;
- mac_length--;
- if (mac_length == 0)
- value = 0x00000300; /* stop IIC bus */
- else if (mac_length == 1)
- value = 0x00000100; /* no ack */
- else
- value = 0x00000000; /* ack */
- IIC_DTRM = value;
- *mac_buf++ = (unsigned char)(data & 0xff);
- }
-
- /* restore GnICR.LV and GnICR.IE */
- flags = arch_local_cli_save();
- IIC_ICR = (orig_gicr & (GxICR_LEVEL | GxICR_ENABLE));
- tmp = IIC_ICR;
- arch_local_irq_restore(flags);
-
- return 0;
-}
-#endif /* MN10300_USE_EXT_EEPROM */
-#endif /* _ASM_UNIT_SMSC911X_H */
+++ /dev/null
-/* timex.h: MN2WS0038 architecture timer specifications
- *
- * Copyright (C) 2002, 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#ifndef _ASM_UNIT_TIMEX_H
-#define _ASM_UNIT_TIMEX_H
-
-#include <asm/timer-regs.h>
-#include <unit/clock.h>
-#include <asm/param.h>
-
-/*
- * jiffies counter specifications
- */
-
-#define TMJCBR_MAX 0xffffff /* 24bit */
-#define TMJCIRQ TMTIRQ
-
-#ifndef __ASSEMBLY__
-
-#define MN10300_SRC_IOBCLK MN10300_IOBCLK
-
-#ifndef HZ
-# error HZ undeclared.
-#endif /* !HZ */
-
-#define MN10300_JCCLK (MN10300_SRC_IOBCLK)
-#define MN10300_TSCCLK (MN10300_SRC_IOBCLK)
-
-#define MN10300_JC_PER_HZ ((MN10300_JCCLK + HZ / 2) / HZ)
-#define MN10300_TSC_PER_HZ ((MN10300_TSCCLK + HZ / 2) / HZ)
-
-/* Check bit width of MTM interval value that sets base register */
-#if (MN10300_JC_PER_HZ - 1) > TMJCBR_MAX
-# error MTM tick timer interval value is overflow.
-#endif
-
-static inline void stop_jiffies_counter(void)
-{
- u16 tmp;
- TMTMD = 0;
- tmp = TMTMD;
-}
-
-static inline void reload_jiffies_counter(u32 cnt)
-{
- u32 tmp;
-
- TMTBR = cnt;
- tmp = TMTBR;
-
- TMTMD = TMTMD_TMTLDE;
- TMTMD = TMTMD_TMTCNE;
- tmp = TMTMD;
-}
-
-#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_CLOCKEVENTS) && \
- !defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
-/*
- * If we aren't using broadcasting, each core needs its own event timer.
- * Since CPU0 uses the tick timer which is 24-bits, we use timer 4 & 5
- * cascaded to 32-bits for CPU1 (but only really use 24-bits to match
- * CPU0).
- */
-
-#define TMJC1IRQ TM5IRQ
-
-static inline void stop_jiffies_counter1(void)
-{
- u8 tmp;
- TM4MD = 0;
- TM5MD = 0;
- tmp = TM4MD;
- tmp = TM5MD;
-}
-
-static inline void reload_jiffies_counter1(u32 cnt)
-{
- u32 tmp;
-
- TM45BR = cnt;
- tmp = TM45BR;
-
- TM4MD = TM4MD_INIT_COUNTER;
- tmp = TM4MD;
-
- TM5MD = TM5MD_SRC_TM4CASCADE | TM5MD_INIT_COUNTER;
- TM5MD = TM5MD_SRC_TM4CASCADE | TM5MD_COUNT_ENABLE;
- tmp = TM5MD;
-
- TM4MD = TM4MD_COUNT_ENABLE;
- tmp = TM4MD;
-}
-#endif /* CONFIG_SMP&GENERIC_CLOCKEVENTS&!GENERIC_CLOCKEVENTS_BROADCAST */
-
-#endif /* !__ASSEMBLY__ */
-
-
-/*
- * timestamp counter specifications
- */
-#define TMTSCBR_MAX 0xffffffff
-
-#ifndef __ASSEMBLY__
-
-/* Use 32-bit timestamp counter */
-#define TMTSCMD TMSMD
-#define TMTSCBR TMSBR
-#define TMTSCBC TMSBC
-#define TMTSCICR TMSICR
-
-static inline void startup_timestamp_counter(void)
-{
- u32 sync;
-
- /* set up TMS(Timestamp) 32bit timer register to count real time
- * - count down from 4Gig-1 to 0 and wrap at IOBCLK rate
- */
-
- TMTSCBR = TMTSCBR_MAX;
- sync = TMTSCBR;
-
- TMTSCICR = 0;
- sync = TMTSCICR;
-
- TMTSCMD = TMTMD_TMTLDE;
- TMTSCMD = TMTMD_TMTCNE;
- sync = TMTSCMD;
-}
-
-static inline void shutdown_timestamp_counter(void)
-{
- TMTSCMD = 0;
-}
-
-/*
- * we use a cascaded pair of 16-bit down-counting timers to count I/O
- * clock cycles for the purposes of time keeping
- */
-typedef unsigned long cycles_t;
-
-static inline cycles_t read_timestamp_counter(void)
-{
- return (cycles_t)~TMTSCBC;
-}
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* _ASM_UNIT_TIMEX_H */
+++ /dev/null
-/* ASB2364 FPGA interrupt multiplexing
- *
- * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <unit/fpga-regs.h>
-
-/*
- * FPGA PIC operations
- */
-static void asb2364_fpga_mask(struct irq_data *d)
-{
- ASB2364_FPGA_REG_MASK(d->irq - NR_CPU_IRQS) = 0x0001;
- SyncExBus();
-}
-
-static void asb2364_fpga_ack(struct irq_data *d)
-{
- ASB2364_FPGA_REG_IRQ(d->irq - NR_CPU_IRQS) = 0x0001;
- SyncExBus();
-}
-
-static void asb2364_fpga_mask_ack(struct irq_data *d)
-{
- ASB2364_FPGA_REG_MASK(d->irq - NR_CPU_IRQS) = 0x0001;
- SyncExBus();
- ASB2364_FPGA_REG_IRQ(d->irq - NR_CPU_IRQS) = 0x0001;
- SyncExBus();
-}
-
-static void asb2364_fpga_unmask(struct irq_data *d)
-{
- ASB2364_FPGA_REG_MASK(d->irq - NR_CPU_IRQS) = 0x0000;
- SyncExBus();
-}
-
-static struct irq_chip asb2364_fpga_pic = {
- .name = "fpga",
- .irq_ack = asb2364_fpga_ack,
- .irq_mask = asb2364_fpga_mask,
- .irq_mask_ack = asb2364_fpga_mask_ack,
- .irq_unmask = asb2364_fpga_unmask,
-};
-
-/*
- * FPGA PIC interrupt handler
- */
-static irqreturn_t fpga_interrupt(int irq, void *_mask)
-{
- if ((ASB2364_FPGA_REG_IRQ_LAN & 0x0001) != 0x0001)
- generic_handle_irq(FPGA_LAN_IRQ);
- if ((ASB2364_FPGA_REG_IRQ_UART & 0x0001) != 0x0001)
- generic_handle_irq(FPGA_UART_IRQ);
- if ((ASB2364_FPGA_REG_IRQ_I2C & 0x0001) != 0x0001)
- generic_handle_irq(FPGA_I2C_IRQ);
- if ((ASB2364_FPGA_REG_IRQ_USB & 0x0001) != 0x0001)
- generic_handle_irq(FPGA_USB_IRQ);
- if ((ASB2364_FPGA_REG_IRQ_FPGA & 0x0001) != 0x0001)
- generic_handle_irq(FPGA_FPGA_IRQ);
-
- return IRQ_HANDLED;
-}
-
-/*
- * Define an interrupt action for each FPGA PIC output
- */
-static struct irqaction fpga_irq[] = {
- [0] = {
- .handler = fpga_interrupt,
- .flags = IRQF_SHARED,
- .name = "fpga",
- },
-};
-
-/*
- * Initialise the FPGA's PIC
- */
-void __init irq_fpga_init(void)
-{
- int irq;
-
- ASB2364_FPGA_REG_MASK_LAN = 0x0001;
- SyncExBus();
- ASB2364_FPGA_REG_MASK_UART = 0x0001;
- SyncExBus();
- ASB2364_FPGA_REG_MASK_I2C = 0x0001;
- SyncExBus();
- ASB2364_FPGA_REG_MASK_USB = 0x0001;
- SyncExBus();
- ASB2364_FPGA_REG_MASK_FPGA = 0x0001;
- SyncExBus();
-
- for (irq = NR_CPU_IRQS; irq < NR_IRQS; irq++)
- irq_set_chip_and_handler(irq, &asb2364_fpga_pic,
- handle_level_irq);
-
- /* the FPGA drives the XIRQ1 input on the CPU PIC */
- setup_irq(XIRQ1, &fpga_irq[0]);
-}
+++ /dev/null
-/* leds.c: ASB2364 peripheral 7seg LEDs x4 support
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/init.h>
-
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/intctl-regs.h>
-#include <asm/rtc-regs.h>
-#include <unit/leds.h>
-
-#if MN10300_USE_7SEGLEDS
-static const u8 asb2364_led_hex_tbl[16] = {
- 0x80, 0xf2, 0x48, 0x60, 0x32, 0x24, 0x04, 0xf0,
- 0x00, 0x20, 0x10, 0x06, 0x8c, 0x42, 0x0c, 0x1c
-};
-
-static const u32 asb2364_led_chase_tbl[6] = {
- ~0x02020202, /* top - segA */
- ~0x04040404, /* right top - segB */
- ~0x08080808, /* right bottom - segC */
- ~0x10101010, /* bottom - segD */
- ~0x20202020, /* left bottom - segE */
- ~0x40404040, /* left top - segF */
-};
-
-static unsigned asb2364_led_chase;
-
-void peripheral_leds7x4_display_dec(unsigned int val, unsigned int points)
-{
- u32 leds;
-
- leds = asb2364_led_hex_tbl[(val/1000) % 10];
- leds <<= 8;
- leds |= asb2364_led_hex_tbl[(val/100) % 10];
- leds <<= 8;
- leds |= asb2364_led_hex_tbl[(val/10) % 10];
- leds <<= 8;
- leds |= asb2364_led_hex_tbl[val % 10];
- leds |= points^0x01010101;
-
- ASB2364_7SEGLEDS = leds;
-}
-
-void peripheral_leds7x4_display_hex(unsigned int val, unsigned int points)
-{
- u32 leds;
-
- leds = asb2364_led_hex_tbl[(val/1000) % 10];
- leds <<= 8;
- leds |= asb2364_led_hex_tbl[(val/100) % 10];
- leds <<= 8;
- leds |= asb2364_led_hex_tbl[(val/10) % 10];
- leds <<= 8;
- leds |= asb2364_led_hex_tbl[val % 10];
- leds |= points^0x01010101;
-
- ASB2364_7SEGLEDS = leds;
-}
-
-/* display triple horizontal bar and exception code */
-void peripheral_leds_display_exception(enum exception_code code)
-{
- u32 leds;
-
- leds = asb2364_led_hex_tbl[(code/0x100) % 0x10];
- leds <<= 8;
- leds |= asb2364_led_hex_tbl[(code/0x10) % 0x10];
- leds <<= 8;
- leds |= asb2364_led_hex_tbl[code % 0x10];
- leds |= 0x6d010101;
-
- ASB2364_7SEGLEDS = leds;
-}
-
-void peripheral_leds_led_chase(void)
-{
- ASB2364_7SEGLEDS = asb2364_led_chase_tbl[asb2364_led_chase];
- asb2364_led_chase++;
- if (asb2364_led_chase >= 6)
- asb2364_led_chase = 0;
-}
-#else /* MN10300_USE_7SEGLEDS */
-void peripheral_leds7x4_display_dec(unsigned int val, unsigned int points) { }
-void peripheral_leds7x4_display_hex(unsigned int val, unsigned int points) { }
-void peripheral_leds_display_exception(enum exception_code code) { }
-void peripheral_leds_led_chase(void) { }
-#endif /* MN10300_USE_7SEGLEDS */
+++ /dev/null
-/* Specification for the SMSC911x NIC
- *
- * Copyright (C) 2006 Matsushita Electric Industrial Co., Ltd.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/io.h>
-#include <linux/ioport.h>
-#include <linux/smsc911x.h>
-#include <unit/smsc911x.h>
-
-static struct smsc911x_platform_config smsc911x_config = {
- .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
- .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
- .flags = SMSC911X_USE_32BIT,
-};
-
-static struct resource smsc911x_resources[] = {
- [0] = {
- .start = SMSC911X_BASE,
- .end = SMSC911X_BASE_END,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = SMSC911X_IRQ,
- .end = SMSC911X_IRQ,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static struct platform_device smsc911x_device = {
- .name = "smsc911x",
- .id = 0,
- .num_resources = ARRAY_SIZE(smsc911x_resources),
- .resource = smsc911x_resources,
- .dev = {
- .platform_data = &smsc911x_config,
- }
-};
-
-/*
- * add platform devices
- */
-static int __init unit_device_init(void)
-{
- platform_device_register(&smsc911x_device);
- return 0;
-}
-
-device_initcall(unit_device_init);
+++ /dev/null
-/* ASB2364 initialisation
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/delay.h>
-
-#include <asm/io.h>
-#include <asm/setup.h>
-#include <asm/processor.h>
-#include <asm/irq.h>
-#include <asm/intctl-regs.h>
-#include <asm/serial-regs.h>
-#include <unit/fpga-regs.h>
-#include <unit/serial.h>
-#include <unit/smsc911x.h>
-
-#define TTYS0_SERIAL_IER __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IER * 2, u8)
-#define LAN_IRQ_CFG __SYSREG(SMSC911X_BASE + 0x54, u32)
-#define LAN_INT_EN __SYSREG(SMSC911X_BASE + 0x5c, u32)
-
-/*
- * initialise some of the unit hardware before gdbstub is set up
- */
-asmlinkage void __init unit_init(void)
-{
- /* Make sure we aren't going to get unexpected interrupts */
- TTYS0_SERIAL_IER = 0;
- SC0RXICR = 0;
- SC0TXICR = 0;
- SC1RXICR = 0;
- SC1TXICR = 0;
- SC2RXICR = 0;
- SC2TXICR = 0;
-
- /* Attempt to reset the FPGA attached peripherals */
- ASB2364_FPGA_REG_RESET_LAN = 0x0000;
- SyncExBus();
- ASB2364_FPGA_REG_RESET_UART = 0x0000;
- SyncExBus();
- ASB2364_FPGA_REG_RESET_I2C = 0x0000;
- SyncExBus();
- ASB2364_FPGA_REG_RESET_USB = 0x0000;
- SyncExBus();
- ASB2364_FPGA_REG_RESET_AV = 0x0000;
- SyncExBus();
-
- /* set up the external interrupts */
-
- /* XIRQ[0]: NAND RXBY */
- /* SET_XIRQ_TRIGGER(0, XIRQ_TRIGGER_LOWLEVEL); */
-
- /* XIRQ[1]: LAN, UART, I2C, USB, PCI, FPGA */
- SET_XIRQ_TRIGGER(1, XIRQ_TRIGGER_LOWLEVEL);
-
- /* XIRQ[2]: Extend Slot 1-9 */
- /* SET_XIRQ_TRIGGER(2, XIRQ_TRIGGER_LOWLEVEL); */
-
-#if defined(CONFIG_EXT_SERIAL_IRQ_LEVEL) && \
- defined(CONFIG_ETHERNET_IRQ_LEVEL) && \
- (CONFIG_EXT_SERIAL_IRQ_LEVEL != CONFIG_ETHERNET_IRQ_LEVEL)
-# error CONFIG_EXT_SERIAL_IRQ_LEVEL != CONFIG_ETHERNET_IRQ_LEVEL
-#endif
-
-#if defined(CONFIG_EXT_SERIAL_IRQ_LEVEL)
- set_intr_level(XIRQ1, NUM2GxICR_LEVEL(CONFIG_EXT_SERIAL_IRQ_LEVEL));
-#elif defined(CONFIG_ETHERNET_IRQ_LEVEL)
- set_intr_level(XIRQ1, NUM2GxICR_LEVEL(CONFIG_ETHERNET_IRQ_LEVEL));
-#endif
-}
-
-/*
- * initialise the rest of the unit hardware after gdbstub is ready
- */
-asmlinkage void __init unit_setup(void)
-{
- /* Release the reset on the SMSC911X so that it is ready by the time we
- * need it */
- ASB2364_FPGA_REG_RESET_LAN = 0x0001;
- SyncExBus();
- ASB2364_FPGA_REG_RESET_UART = 0x0001;
- SyncExBus();
- ASB2364_FPGA_REG_RESET_I2C = 0x0001;
- SyncExBus();
- ASB2364_FPGA_REG_RESET_USB = 0x0001;
- SyncExBus();
- ASB2364_FPGA_REG_RESET_AV = 0x0001;
- SyncExBus();
-
- /* Make sure the ethernet chipset isn't going to give us an interrupt
- * storm from stuff it was doing pre-reset */
- LAN_IRQ_CFG = 0;
- LAN_INT_EN = 0;
-}
-
-/*
- * initialise the external interrupts used by a unit of this type
- */
-void __init unit_init_IRQ(void)
-{
- unsigned int extnum;
-
- for (extnum = 0 ; extnum < NR_XIRQS ; extnum++) {
- switch (GET_XIRQ_TRIGGER(extnum)) {
- /* LEVEL triggered interrupts should be made
- * post-ACK'able as they hold their lines until
- * serviced
- */
- case XIRQ_TRIGGER_HILEVEL:
- case XIRQ_TRIGGER_LOWLEVEL:
- mn10300_set_lateack_irq_type(XIRQ2IRQ(extnum));
- break;
- default:
- break;
- }
- }
-
-#define IRQCTL __SYSREG(0xd5000090, u32)
- IRQCTL |= 0x02;
-
- irq_fpga_init();
-}
#include <asm/unaligned.h>
/*
- * On some 32-bit architectures (mn10300 and h8300), GCC ends up using
+ * On some 32-bit architectures (h8300), GCC ends up using
* over 1 KB of stack if we inline the round calculation into the loop
* in keccakf(). On the other hand, on 64-bit architectures with plenty
* of [64-bit wide] general purpose registers, not inlining it severely
#define GET_TIME(x) do { x = (unsigned int)rdtsc(); } while (0)
#define DELTA(x,y) ((y)-(x))
#define TIME_NAME "TSC"
-#elif defined(__alpha__) || defined(CONFIG_MN10300) || defined(CONFIG_ARM) || defined(CONFIG_ARM64) || defined(CONFIG_RISCV) || defined(CONFIG_TILE)
+#elif defined(__alpha__) || defined(CONFIG_ARM) || defined(CONFIG_ARM64) || defined(CONFIG_RISCV) || defined(CONFIG_TILE)
#define GET_TIME(x) do { x = get_cycles(); } while (0)
#define DELTA(x,y) ((y)-(x))
#define TIME_NAME "get_cycles"
bool "SMC (SMSC)/Western Digital devices"
default y
depends on ARM || ARM64 || ATARI_ETHERNAT || BLACKFIN || COLDFIRE || \
- ISA || M32R || MAC || MIPS || MN10300 || NIOS2 || PCI || \
+ ISA || M32R || MAC || MIPS || NIOS2 || PCI || \
PCMCIA || SUPERH || XTENSA || H8300
---help---
If you have a network (Ethernet) card belonging to this class, say Y.
select MII
depends on !OF || GPIOLIB
depends on ARM || ARM64 || ATARI_ETHERNAT || BLACKFIN || COLDFIRE || \
- M32R || MIPS || MN10300 || NIOS2 || SUPERH || XTENSA || H8300
+ M32R || MIPS || NIOS2 || SUPERH || XTENSA || H8300
---help---
This is a driver for SMC's 91x series of Ethernet chipsets,
including the SMC91C94 and the SMC91C111. Say Y if you want it
tristate "SMSC LAN911[5678] support"
select CRC32
select MII
- depends on (ARM || SUPERH || MN10300)
+ depends on (ARM || SUPERH)
---help---
This is a driver for SMSC's LAN911x series of Ethernet chipsets
including the new LAN9115, LAN9116, LAN9117, and LAN9118.
#define RPC_LSA_DEFAULT RPC_LED_TX_RX
#define RPC_LSB_DEFAULT RPC_LED_100_10
-#elif defined(CONFIG_MN10300)
-
-/*
- * MN10300/AM33 configuration
- */
-
-#include <unit/smc91111.h>
-
#elif defined(CONFIG_ATARI)
#define SMC_CAN_USE_8BIT 1
config RTC_DRV_CMOS
tristate "PC-style 'CMOS'"
- depends on X86 || ARM || M32R || PPC || MIPS || SPARC64 || MN10300
+ depends on X86 || ARM || M32R || PPC || MIPS || SPARC64
default y if X86
select RTC_MC146818_LIB
help
address_space = 64;
#elif defined(__i386__) || defined(__x86_64__) || defined(__arm__) \
|| defined(__sparc__) || defined(__mips__) \
- || defined(__powerpc__) || defined(CONFIG_MN10300)
+ || defined(__powerpc__)
address_space = 128;
#else
#warning Assuming 128 bytes of RTC+NVRAM address space, not 64 bytes.
menu "Speakup console speech"
config SPEAKUP
- depends on VT && !MN10300
+ depends on VT
tristate "Speakup core"
---help---
This is the Speakup screen reader. Think of it as a
config VGA_CONSOLE
bool "VGA text console" if EXPERT || !X86
depends on !4xx && !PPC_8xx && !SPARC && !M68K && !PARISC && !FRV && \
- !SUPERH && !BLACKFIN && !AVR32 && !MN10300 && !CRIS && \
+ !SUPERH && !BLACKFIN && !AVR32 && !CRIS && \
(!ARM || ARCH_FOOTBRIDGE || ARCH_INTEGRATOR || ARCH_NETWINDER) && \
!ARM64 && !ARC && !MICROBLAZE && !OPENRISC
default y
* Generic C implementation of atomic counter operations. Usable on
* UP systems only. Do not include in machine independent code.
*
- * Originally implemented for MN10300.
- *
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
/*
- * Generic barrier definitions, originally based on MN10300 definitions.
+ * Generic barrier definitions.
*
* It should be possible to use these on really simple architectures,
* but it serves more as a starting point for new ports.
-/* Generic process execution definitions, based on MN10300 definitions.
+/* Generic process execution definitions.
*
* It should be possible to use these on really simple architectures,
* but it serves more as a starting point for new ports.
-/* Generic I/O port emulation, based on MN10300 code
+/* Generic I/O port emulation.
*
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
/* SPDX-License-Identifier: GPL-2.0+ */
-/* Generic I/O port emulation, based on MN10300 code
+/* Generic I/O port emulation.
*
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
-/* Generic task switch macro wrapper, based on MN10300 definitions.
+/* Generic task switch macro wrapper.
*
* It should be possible to use these on really simple architectures,
* but it serves more as a starting point for new ports.
#include <asm/byteorder.h>
#include <asm/io.h>
-#if defined(CONFIG_CRIS) || defined(CONFIG_FRV) || defined(CONFIG_MN10300)
+#if defined(CONFIG_CRIS) || defined(CONFIG_FRV)
# define SUPPORT_VLB_SYNC 0
#else
# define SUPPORT_VLB_SYNC 1
config SGETMASK_SYSCALL
bool "sgetmask/ssetmask syscalls support" if EXPERT
- def_bool PARISC || MN10300 || BLACKFIN || M68K || PPC || MIPS || X86 || SPARC || CRIS || MICROBLAZE || SUPERH
+ def_bool PARISC || BLACKFIN || M68K || PPC || MIPS || X86 || SPARC || CRIS || MICROBLAZE || SUPERH
---help---
sys_sgetmask and sys_ssetmask are obsolete system calls
no longer supported in libc but still enabled by default in some
bool "Compile the kernel with frame pointers"
depends on DEBUG_KERNEL && \
(CRIS || M68K || FRV || UML || \
- SUPERH || BLACKFIN || MN10300) || \
+ SUPERH || BLACKFIN) || \
ARCH_WANT_FRAME_POINTERS
default y if (DEBUG_INFO && UML) || ARCH_WANT_FRAME_POINTERS
help
!defined(CONFIG_M32R) && \
!defined(CONFIG_M68K) && \
!defined(CONFIG_MICROBLAZE) && \
- !defined(CONFIG_MN10300) && \
!defined(CONFIG_NIOS2) && \
!defined(CONFIG_PPC32) && \
!defined(CONFIG_SUPERH))
".debug*",
".cranges", /* sh64 */
".zdebug*", /* Compressed debug sections. */
- ".GCC-command-line", /* mn10300 */
- ".GCC.command.line", /* record-gcc-switches, non mn10300 */
+ ".GCC.command.line", /* record-gcc-switches */
".mdebug*", /* alpha, score, mips etc. */
".pdr", /* alpha, score, mips etc. */
".stab*",
/*
* The target section could be the SHT_NUL section when we're
* handling relocations to un-resolved symbols, trying to match it
- * doesn't make much sense and causes build failures on parisc and
- * mn10300 architectures.
+ * doesn't make much sense and causes build failures on parisc
+ * architectures.
*/
if (*tosec == '\0')
return NULL;
+++ /dev/null
-#include <asm-generic/bitsperlong.h>
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef TOOLS_ARCH_MN10300_UAPI_ASM_MMAN_FIX_H
-#define TOOLS_ARCH_MN10300_UAPI_ASM_MMAN_FIX_H
-#include <uapi/asm-generic/mman.h>
-/* MAP_32BIT is undefined on mn10300, fix it for perf */
-#define MAP_32BIT 0
-#endif
/*
* Copied from the kernel sources to tools/perf/:
*
- * Generic barrier definitions, originally based on MN10300 definitions.
+ * Generic barrier definitions.
*
* It should be possible to use these on really simple architectures,
* but it serves more as a starting point for new ports.
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