2 bool "64-bit kernel" if ARCH = "sparc"
3 default ARCH = "sparc64"
5 SPARC is a family of RISC microprocessors designed and marketed by
6 Sun Microsystems, incorporated. They are very widely found in Sun
7 workstations and clones.
9 Say yes to build a 64-bit kernel - formerly known as sparc64
10 Say no to build a 32-bit kernel - formerly known as sparc
19 select HAVE_ARCH_KGDB if !SMP || SPARC64
20 select HAVE_ARCH_TRACEHOOK
21 select ARCH_WANT_OPTIONAL_GPIOLIB
26 select HAVE_DMA_API_DEBUG
27 select HAVE_ARCH_JUMP_LABEL
28 select HAVE_GENERIC_HARDIRQS
29 select GENERIC_IRQ_SHOW
30 select USE_GENERIC_SMP_HELPERS if SMP
31 select GENERIC_PCI_IOMAP
32 select HAVE_NMI_WATCHDOG if SPARC64
33 select GENERIC_CMOS_UPDATE
37 select GENERIC_ATOMIC64
39 select ARCH_USES_GETTIMEOFFSET
43 select ARCH_SUPPORTS_MSI
44 select HAVE_FUNCTION_TRACER
45 select HAVE_FUNCTION_GRAPH_TRACER
46 select HAVE_FUNCTION_GRAPH_FP_TEST
47 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
48 select HAVE_KRETPROBES
50 select HAVE_RCU_TABLE_FREE if SMP
52 select HAVE_MEMBLOCK_NODE_MAP
53 select HAVE_SYSCALL_WRAPPERS
54 select HAVE_DYNAMIC_FTRACE
55 select HAVE_FTRACE_MCOUNT_RECORD
56 select HAVE_SYSCALL_TRACEPOINTS
60 select RTC_DRV_STARFIRE
61 select HAVE_PERF_EVENTS
62 select PERF_USE_VMALLOC
63 select IRQ_PREFLOW_FASTEOI
64 select ARCH_HAVE_NMI_SAFE_CMPXCHG
65 select HAVE_C_RECORDMCOUNT
66 select GENERIC_CLOCKEVENTS
70 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
71 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
73 # CONFIG_BITS can be used at source level to get 32/64 bits
83 config STACKTRACE_SUPPORT
87 config LOCKDEP_SUPPORT
91 config HAVE_LATENCYTOP_SUPPORT
99 config HAVE_SETUP_PER_CPU_AREA
100 def_bool y if SPARC64
102 config NEED_PER_CPU_EMBED_FIRST_CHUNK
103 def_bool y if SPARC64
105 config NEED_PER_CPU_PAGE_FIRST_CHUNK
106 def_bool y if SPARC64
120 config NEED_DMA_MAP_STATE
123 config NEED_SG_DMA_LENGTH
126 config GENERIC_ISA_DMA
133 Generic GPIO API support
135 config ARCH_NO_VIRT_TO_BUS
138 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
139 def_bool y if SPARC64
141 source "init/Kconfig"
143 source "kernel/Kconfig.freezer"
145 menu "Processor type and features"
148 bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
150 This enables support for systems with more than one CPU. If you have
151 a system with only one CPU, say N. If you have a system with more
154 If you say N here, the kernel will run on single and multiprocessor
155 machines, but will use only one CPU of a multiprocessor machine. If
156 you say Y here, the kernel will run on many, but not all,
157 singleprocessor machines. On a singleprocessor machine, the kernel
158 will run faster if you say N here.
160 People using multiprocessor machines who say Y here should also say
161 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
162 Management" code will be disabled if you say Y here.
164 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
165 available at <http://www.tldp.org/docs.html#howto>.
167 If you don't know what to do here, say N.
170 int "Maximum number of CPUs"
172 range 2 32 if SPARC32
173 range 2 1024 if SPARC64
174 default 32 if SPARC32
175 default 64 if SPARC64
177 source kernel/Kconfig.hz
179 config RWSEM_GENERIC_SPINLOCK
183 config RWSEM_XCHGADD_ALGORITHM
187 config GENERIC_HWEIGHT
189 default y if !ULTRA_HAS_POPULATION_COUNT
191 config GENERIC_CALIBRATE_DELAY
195 config ARCH_MAY_HAVE_PC_FDC
199 config EMULATED_CMPXCHG
203 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
204 is emulated, and therefore it is not completely atomic.
210 depends on SPARC32 && SMP
215 depends on SPARC64 && SMP
218 bool "Support for early boot text console"
222 Say Y here to enable a faster early framebuffer boot console.
225 prompt "Kernel page size" if SPARC64
226 default SPARC64_PAGE_SIZE_8KB
228 config SPARC64_PAGE_SIZE_8KB
231 This lets you select the page size of the kernel.
233 8KB and 64KB work quite well, since SPARC ELF sections
234 provide for up to 64KB alignment.
236 If you don't know what to do, choose 8KB.
238 config SPARC64_PAGE_SIZE_64KB
244 bool "Enable seccomp to safely compute untrusted bytecode"
245 depends on SPARC64 && PROC_FS
248 This kernel feature is useful for number crunching applications
249 that may need to compute untrusted bytecode during their
250 execution. By using pipes or other transports made available to
251 the process as file descriptors supporting the read/write
252 syscalls, it's possible to isolate those applications in
253 their own address space using seccomp. Once seccomp is
254 enabled via /proc/<pid>/seccomp, it cannot be disabled
255 and the task is only allowed to execute a few safe syscalls
256 defined by each seccomp mode.
258 If unsure, say Y. Only embedded should say N here.
261 bool "Support for hot-pluggable CPUs"
262 depends on SPARC64 && SMP
265 Say Y here to experiment with turning CPUs off and on. CPUs
266 can be controlled through /sys/devices/system/cpu/cpu#.
267 Say N if you want to disable CPU hotplug.
270 source "drivers/cpufreq/Kconfig"
273 tristate "UltraSPARC-III CPU Frequency driver"
275 select CPU_FREQ_TABLE
277 This adds the CPUFreq driver for UltraSPARC-III processors.
279 For details, take a look at <file:Documentation/cpu-freq>.
284 tristate "UltraSPARC-IIe CPU Frequency driver"
286 select CPU_FREQ_TABLE
288 This adds the CPUFreq driver for UltraSPARC-IIe processors.
290 For details, take a look at <file:Documentation/cpu-freq>.
297 tristate "UltraSPARC-III Memory Controller driver"
301 This adds a driver for the UltraSPARC-III memory controller.
302 Loading this driver allows exact mnemonic strings to be
303 printed in the event of a memory error, so that the faulty DIMM
304 on the motherboard can be matched to the error.
306 If in doubt, say Y, as this information can be very useful.
308 # Global things across all Sun machines.
309 config GENERIC_LOCKBREAK
312 depends on SPARC64 && SMP && PREEMPT
315 prompt "SPARC64 Huge TLB Page Size"
316 depends on SPARC64 && HUGETLB_PAGE
317 default HUGETLB_PAGE_SIZE_4MB
319 config HUGETLB_PAGE_SIZE_4MB
322 config HUGETLB_PAGE_SIZE_512K
325 config HUGETLB_PAGE_SIZE_64K
326 depends on !SPARC64_PAGE_SIZE_64KB
333 depends on SPARC64 && SMP
338 depends on NEED_MULTIPLE_NODES
340 # Some NUMA nodes have memory ranges that span
341 # other nodes. Even though a pfn is valid and
342 # between a node's start and end pfns, it may not
343 # reside on that node. See memmap_init_zone()
345 config NODES_SPAN_OTHER_NODES
347 depends on NEED_MULTIPLE_NODES
349 config ARCH_SELECT_MEMORY_MODEL
350 def_bool y if SPARC64
352 config ARCH_SPARSEMEM_ENABLE
353 def_bool y if SPARC64
354 select SPARSEMEM_VMEMMAP_ENABLE
356 config ARCH_SPARSEMEM_DEFAULT
357 def_bool y if SPARC64
362 bool "SMT (Hyperthreading) scheduler support"
363 depends on SPARC64 && SMP
366 SMT scheduler support improves the CPU scheduler's decision making
367 when dealing with SPARC cpus at a cost of slightly increased overhead
368 in some places. If unsure say N here.
371 bool "Multi-core scheduler support"
372 depends on SPARC64 && SMP
375 Multi-core scheduler support improves the CPU scheduler's decision
376 making when dealing with multi-core CPU chips at a cost of slightly
377 increased overhead in some places. If unsure say N here.
379 source "kernel/Kconfig.preempt"
382 bool "Default bootloader kernel arguments"
386 string "Initial kernel command string"
387 depends on CMDLINE_BOOL
388 default "console=ttyS0,9600 root=/dev/sda1"
390 Say Y here if you want to be able to pass default arguments to
391 the kernel. This will be overridden by the bootloader, if you
392 use one (such as SILO). This is most useful if you want to boot
393 a kernel from TFTP, and want default options to be available
394 with having them passed on the command line.
396 NOTE: This option WILL override the PROM bootargs setting!
402 Enable power management and CPU standby features on supported
406 tristate "Sun4m LED driver"
409 This driver toggles the front-panel LED on sun4m systems
410 in a user-specifiable manner. Its state can be probed
411 by reading /proc/led and its blinking mode can be changed
412 via writes to /proc/led
414 config SERIAL_CONSOLE
419 If you say Y here, it will be possible to use a serial port as the
420 system console (the system console is the device which receives all
421 kernel messages and warnings and which allows logins in single user
422 mode). This could be useful if some terminal or printer is connected
425 Even if you say Y here, the currently visible virtual console
426 (/dev/tty0) will still be used as the system console by default, but
427 you can alter that using a kernel command line option such as
428 "console=ttyS1". (Try "man bootparam" or see the documentation of
429 your boot loader (silo) about how to pass options to the kernel at
432 If you don't have a graphics card installed and you say Y here, the
433 kernel will automatically use the first serial line, /dev/ttyS0, as
439 bool "Sparc Leon processor family"
442 If you say Y here if you are running on a SPARC-LEON processor.
443 The LEON processor is a synthesizable VHDL model of the
444 SPARC-v8 standard. LEON is part of the GRLIB collection of
445 IP cores that are distributed under GPL. GRLIB can be downloaded
446 from www.gaisler.com. You can download a sparc-linux cross-compilation
447 toolchain at www.gaisler.com.
450 menu "U-Boot options"
452 config UBOOT_LOAD_ADDR
453 hex "uImage Load Address"
456 U-Boot kernel load address, the address in physical address space
457 where u-boot will place the Linux kernel before booting it.
458 This address is normally the base address of main memory + 0x4000.
460 config UBOOT_FLASH_ADDR
461 hex "uImage.o Load Address"
464 Optional setting only affecting the uImage.o ELF-image used to
465 download the uImage file to the target using a ELF-loader other than
466 U-Boot. It may for example be used to download an uImage to FLASH with
467 the GRMON utility before even starting u-boot.
469 config UBOOT_ENTRY_ADDR
470 hex "uImage Entry Address"
473 Do not change this unless you know what you're doing. This is
474 hardcoded by the SPARC32 and LEON port.
476 This is the virtual address u-boot jumps to when booting the Linux
484 menu "Bus options (PCI etc.)"
494 bool "Sun Logical Domains support"
497 Say Y here is you want to support virtual devices via
501 bool "Support for PCI and PS/2 keyboard/mouse"
503 Find out whether your system includes a PCI bus. PCI is the name of
504 a bus system, i.e. the way the CPU talks to the other stuff inside
505 your box. If you say Y here, the kernel will include drivers and
506 infrastructure code to support PCI bus devices.
508 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
509 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
510 All of these platforms are extremely obscure, so say N if unsure.
513 def_bool PCI if SPARC64
520 depends on PCI && SPARC32 && !SPARC_LEON
525 depends on PCI && SPARC_LEON
529 bool "GRPCI2 Host Bridge Support"
533 Say Y here to include the GRPCI2 Host Bridge Driver.
535 source "drivers/pci/Kconfig"
537 source "drivers/pcmcia/Kconfig"
539 config SUN_OPENPROMFS
540 tristate "Openprom tree appears in /proc/openprom"
542 If you say Y, the OpenPROM device tree will be available as a
543 virtual file system, which you can mount to /proc/openprom by "mount
544 -t openpromfs none /proc/openprom".
546 To compile the /proc/openprom support as a module, choose M here: the
547 module will be called openpromfs.
549 Only choose N if you know in advance that you will not need to modify
550 OpenPROM settings on the running system.
556 depends on SPARC64 && PCI
560 menu "Executable file formats"
562 source "fs/Kconfig.binfmt"
568 select COMPAT_BINFMT_ELF
569 select ARCH_WANT_OLD_COMPAT_IPC
571 config SYSVIPC_COMPAT
573 depends on COMPAT && SYSVIPC
580 source "drivers/Kconfig"
582 source "drivers/sbus/char/Kconfig"
586 source "arch/sparc/Kconfig.debug"
588 source "security/Kconfig"
590 source "crypto/Kconfig"