1 # SPDX-License-Identifier: GPL-2.0
2 # Hexagon configuration
3 comment "Linux Kernel Configuration for Hexagon"
7 select ARCH_32BIT_OFF_T
8 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
10 select DMA_GLOBAL_POOL
11 # Other pending projects/to-do items.
12 # select HAVE_REGS_AND_STACK_ACCESS_API
13 # select HAVE_HW_BREAKPOINT if PERF_EVENTS
14 # select ARCH_HAS_CPU_IDLE_WAIT
17 # select GENERIC_PENDING_IRQ if SMP
18 select GENERIC_ATOMIC64
19 select HAVE_PERF_EVENTS
20 # GENERIC_ALLOCATOR is used by dma_alloc_coherent()
21 select GENERIC_ALLOCATOR
22 select GENERIC_IRQ_SHOW
24 select HAVE_ARCH_TRACEHOOK
25 select NEED_SG_DMA_LENGTH
28 select GENERIC_SMP_IDLE_THREAD
29 select STACKTRACE_SUPPORT
30 select GENERIC_CLOCKEVENTS_BROADCAST
31 select MODULES_USE_ELF_RELA
32 select GENERIC_CPU_DEVICES
34 select ARCH_WANT_LD_ORPHAN_WARN
36 Qualcomm Hexagon is a processor architecture designed for high
37 performance and low power across a wide variety of applications.
39 config HEXAGON_PHYS_OFFSET
42 Platforms that don't load the kernel at zero set this.
47 config LOCKDEP_SUPPORT
56 config TRACE_IRQFLAGS_SUPPORT
63 # Use the generic interrupt handling code in kernel/irq/:
65 config GENERIC_IRQ_PROBE
68 config GENERIC_HWEIGHT
71 config STACKTRACE_SUPPORT
79 menu "Machine selection"
88 Support for the Comet platform.
92 config HEXAGON_ARCH_VERSION
93 int "Architecture version"
97 string "Default kernel command string"
100 On some platforms, there is currently no way for the boot loader
101 to pass arguments to the kernel. For these, you should supply some
102 command-line options at build time by entering them here. At a
103 minimum, you should specify the memory size and the root device
104 (e.g., mem=64M root=/dev/nfs).
107 bool "Multi-Processing support"
109 Enables SMP support in the kernel. If unsure, say "Y"
112 int "Maximum number of CPUs" if SMP
117 This allows you to specify the maximum number of CPUs which this
118 kernel will support. The maximum supported value is 6 and the
119 minimum value which makes sense is 2.
121 This is purely to save memory - each supported CPU adds
122 approximately eight kilobytes to the kernel image.
125 prompt "Kernel page size"
126 default PAGE_SIZE_4KB
128 Changes the default page size; use with caution.
133 config PAGE_SIZE_16KB
136 config PAGE_SIZE_64KB
139 config PAGE_SIZE_256KB
144 source "kernel/Kconfig.hz"