mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-05 18:39:59 +00:00
203cfe05ef
commit a050ba1e74 upstream.
This does the simple pattern conversion of alpha, arc, csky, hexagon,
loongarch, nios2, sh, sparc32, and xtensa to the lock_mm_and_find_vma()
helper. They all have the regular fault handling pattern without odd
special cases.
The remaining architectures all have something that keeps us from a
straightforward conversion: ia64 and parisc have stacks that can grow
both up as well as down (and ia64 has special address region checks).
And m68k, microblaze, openrisc, sparc64, and um end up having extra
rules about only expanding the stack down a limited amount below the
user space stack pointer. That is something that x86 used to do too
(long long ago), and it probably could just be skipped, but it still
makes the conversion less than trivial.
Note that this conversion was done manually and with the exception of
alpha without any build testing, because I have a fairly limited cross-
building environment. The cases are all simple, and I went through the
changes several times, but...
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
356 lines
8.4 KiB
Text
356 lines
8.4 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
|
|
config CSKY
|
|
def_bool y
|
|
select ARCH_32BIT_OFF_T
|
|
select ARCH_HAS_DMA_PREP_COHERENT
|
|
select ARCH_HAS_GCOV_PROFILE_ALL
|
|
select ARCH_HAS_SYNC_DMA_FOR_CPU
|
|
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
|
|
select ARCH_USE_BUILTIN_BSWAP
|
|
select ARCH_USE_QUEUED_RWLOCKS
|
|
select ARCH_USE_QUEUED_SPINLOCKS
|
|
select ARCH_HAS_CURRENT_STACK_POINTER
|
|
select ARCH_INLINE_READ_LOCK if !PREEMPTION
|
|
select ARCH_INLINE_READ_LOCK_BH if !PREEMPTION
|
|
select ARCH_INLINE_READ_LOCK_IRQ if !PREEMPTION
|
|
select ARCH_INLINE_READ_LOCK_IRQSAVE if !PREEMPTION
|
|
select ARCH_INLINE_READ_UNLOCK if !PREEMPTION
|
|
select ARCH_INLINE_READ_UNLOCK_BH if !PREEMPTION
|
|
select ARCH_INLINE_READ_UNLOCK_IRQ if !PREEMPTION
|
|
select ARCH_INLINE_READ_UNLOCK_IRQRESTORE if !PREEMPTION
|
|
select ARCH_INLINE_WRITE_LOCK if !PREEMPTION
|
|
select ARCH_INLINE_WRITE_LOCK_BH if !PREEMPTION
|
|
select ARCH_INLINE_WRITE_LOCK_IRQ if !PREEMPTION
|
|
select ARCH_INLINE_WRITE_LOCK_IRQSAVE if !PREEMPTION
|
|
select ARCH_INLINE_WRITE_UNLOCK if !PREEMPTION
|
|
select ARCH_INLINE_WRITE_UNLOCK_BH if !PREEMPTION
|
|
select ARCH_INLINE_WRITE_UNLOCK_IRQ if !PREEMPTION
|
|
select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE if !PREEMPTION
|
|
select ARCH_INLINE_SPIN_TRYLOCK if !PREEMPTION
|
|
select ARCH_INLINE_SPIN_TRYLOCK_BH if !PREEMPTION
|
|
select ARCH_INLINE_SPIN_LOCK if !PREEMPTION
|
|
select ARCH_INLINE_SPIN_LOCK_BH if !PREEMPTION
|
|
select ARCH_INLINE_SPIN_LOCK_IRQ if !PREEMPTION
|
|
select ARCH_INLINE_SPIN_LOCK_IRQSAVE if !PREEMPTION
|
|
select ARCH_INLINE_SPIN_UNLOCK if !PREEMPTION
|
|
select ARCH_INLINE_SPIN_UNLOCK_BH if !PREEMPTION
|
|
select ARCH_INLINE_SPIN_UNLOCK_IRQ if !PREEMPTION
|
|
select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE if !PREEMPTION
|
|
select ARCH_WANT_FRAME_POINTERS if !CPU_CK610 && $(cc-option,-mbacktrace)
|
|
select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
|
|
select COMMON_CLK
|
|
select CLKSRC_MMIO
|
|
select CSKY_MPINTC if CPU_CK860
|
|
select CSKY_MP_TIMER if CPU_CK860
|
|
select CSKY_APB_INTC
|
|
select DMA_DIRECT_REMAP
|
|
select IRQ_DOMAIN
|
|
select DW_APB_TIMER_OF
|
|
select GENERIC_IOREMAP
|
|
select GENERIC_LIB_ASHLDI3
|
|
select GENERIC_LIB_ASHRDI3
|
|
select GENERIC_LIB_LSHRDI3
|
|
select GENERIC_LIB_MULDI3
|
|
select GENERIC_LIB_CMPDI2
|
|
select GENERIC_LIB_UCMPDI2
|
|
select GENERIC_ALLOCATOR
|
|
select GENERIC_ATOMIC64
|
|
select GENERIC_CPU_DEVICES
|
|
select GENERIC_IRQ_CHIP
|
|
select GENERIC_IRQ_PROBE
|
|
select GENERIC_IRQ_SHOW
|
|
select GENERIC_IRQ_MULTI_HANDLER
|
|
select GENERIC_SCHED_CLOCK
|
|
select GENERIC_SMP_IDLE_THREAD
|
|
select GENERIC_TIME_VSYSCALL
|
|
select GENERIC_VDSO_32
|
|
select GENERIC_GETTIMEOFDAY
|
|
select GX6605S_TIMER if CPU_CK610
|
|
select HAVE_ARCH_TRACEHOOK
|
|
select HAVE_ARCH_AUDITSYSCALL
|
|
select HAVE_ARCH_JUMP_LABEL if !CPU_CK610
|
|
select HAVE_ARCH_JUMP_LABEL_RELATIVE
|
|
select HAVE_ARCH_MMAP_RND_BITS
|
|
select HAVE_ARCH_SECCOMP_FILTER
|
|
select HAVE_CONTEXT_TRACKING_USER
|
|
select HAVE_VIRT_CPU_ACCOUNTING_GEN
|
|
select HAVE_DEBUG_BUGVERBOSE
|
|
select HAVE_DEBUG_KMEMLEAK
|
|
select HAVE_DYNAMIC_FTRACE
|
|
select HAVE_DYNAMIC_FTRACE_WITH_REGS
|
|
select HAVE_GENERIC_VDSO
|
|
select HAVE_FUNCTION_TRACER
|
|
select HAVE_FUNCTION_GRAPH_TRACER
|
|
select HAVE_FUNCTION_ERROR_INJECTION
|
|
select HAVE_FTRACE_MCOUNT_RECORD
|
|
select HAVE_KERNEL_GZIP
|
|
select HAVE_KERNEL_LZO
|
|
select HAVE_KERNEL_LZMA
|
|
select HAVE_KPROBES if !CPU_CK610
|
|
select HAVE_KPROBES_ON_FTRACE if !CPU_CK610
|
|
select HAVE_KRETPROBES if !CPU_CK610
|
|
select HAVE_PERF_EVENTS
|
|
select HAVE_PERF_REGS
|
|
select HAVE_PERF_USER_STACK_DUMP
|
|
select HAVE_DMA_CONTIGUOUS
|
|
select HAVE_REGS_AND_STACK_ACCESS_API
|
|
select HAVE_STACKPROTECTOR
|
|
select HAVE_SYSCALL_TRACEPOINTS
|
|
select LOCK_MM_AND_FIND_VMA
|
|
select MAY_HAVE_SPARSE_IRQ
|
|
select MODULES_USE_ELF_RELA if MODULES
|
|
select OF
|
|
select OF_EARLY_FLATTREE
|
|
select PERF_USE_VMALLOC if CPU_CK610
|
|
select RTC_LIB
|
|
select TIMER_OF
|
|
select GENERIC_PCI_IOMAP
|
|
select HAVE_PCI
|
|
select PCI_DOMAINS_GENERIC if PCI
|
|
select PCI_SYSCALL if PCI
|
|
select PCI_MSI if PCI
|
|
select TRACE_IRQFLAGS_SUPPORT
|
|
|
|
config LOCKDEP_SUPPORT
|
|
def_bool y
|
|
|
|
config ARCH_SUPPORTS_UPROBES
|
|
def_bool y if !CPU_CK610
|
|
|
|
config CPU_HAS_CACHEV2
|
|
bool
|
|
|
|
config CPU_HAS_FPUV2
|
|
bool
|
|
|
|
config CPU_HAS_HILO
|
|
bool
|
|
|
|
config CPU_HAS_TLBI
|
|
bool
|
|
|
|
config CPU_HAS_LDSTEX
|
|
bool
|
|
help
|
|
For SMP, CPU needs "ldex&stex" instructions for atomic operations.
|
|
|
|
config CPU_NEED_TLBSYNC
|
|
bool
|
|
|
|
config CPU_NEED_SOFTALIGN
|
|
bool
|
|
|
|
config CPU_NO_USER_BKPT
|
|
bool
|
|
help
|
|
For abiv2 we couldn't use "trap 1" as user space bkpt in gdbserver, because
|
|
abiv2 is 16/32bit instruction set and "trap 1" is 32bit.
|
|
So we need a 16bit instruction as user space bkpt, and it will cause an illegal
|
|
instruction exception.
|
|
In kernel we parse the *regs->pc to determine whether to send SIGTRAP or not.
|
|
|
|
config GENERIC_CALIBRATE_DELAY
|
|
def_bool y
|
|
|
|
config GENERIC_CSUM
|
|
def_bool y
|
|
|
|
config GENERIC_HWEIGHT
|
|
def_bool y
|
|
|
|
config MMU
|
|
def_bool y
|
|
|
|
config STACKTRACE_SUPPORT
|
|
def_bool y
|
|
|
|
config TIME_LOW_RES
|
|
def_bool y
|
|
|
|
config CPU_ASID_BITS
|
|
int
|
|
default "8" if (CPU_CK610 || CPU_CK807 || CPU_CK810)
|
|
default "12" if (CPU_CK860)
|
|
|
|
config L1_CACHE_SHIFT
|
|
int
|
|
default "4" if (CPU_CK610)
|
|
default "5" if (CPU_CK807 || CPU_CK810)
|
|
default "6" if (CPU_CK860)
|
|
|
|
config ARCH_MMAP_RND_BITS_MIN
|
|
default 8
|
|
|
|
# max bits determined by the following formula:
|
|
# VA_BITS - PAGE_SHIFT - 3
|
|
config ARCH_MMAP_RND_BITS_MAX
|
|
default 17
|
|
|
|
menu "Processor type and features"
|
|
|
|
choice
|
|
prompt "CPU MODEL"
|
|
default CPU_CK807
|
|
|
|
config CPU_CK610
|
|
bool "CSKY CPU ck610"
|
|
select CPU_NEED_TLBSYNC
|
|
select CPU_NEED_SOFTALIGN
|
|
select CPU_NO_USER_BKPT
|
|
|
|
config CPU_CK810
|
|
bool "CSKY CPU ck810"
|
|
select CPU_HAS_HILO
|
|
select CPU_NEED_TLBSYNC
|
|
|
|
config CPU_CK807
|
|
bool "CSKY CPU ck807"
|
|
select CPU_HAS_HILO
|
|
|
|
config CPU_CK860
|
|
bool "CSKY CPU ck860"
|
|
select CPU_HAS_TLBI
|
|
select CPU_HAS_CACHEV2
|
|
select CPU_HAS_LDSTEX
|
|
select CPU_HAS_FPUV2
|
|
endchoice
|
|
|
|
choice
|
|
prompt "PAGE OFFSET"
|
|
default PAGE_OFFSET_80000000
|
|
|
|
config PAGE_OFFSET_80000000
|
|
bool "PAGE OFFSET 2G (user:kernel = 2:2)"
|
|
|
|
config PAGE_OFFSET_A0000000
|
|
bool "PAGE OFFSET 2.5G (user:kernel = 2.5:1.5)"
|
|
endchoice
|
|
|
|
config PAGE_OFFSET
|
|
hex
|
|
default 0x80000000 if PAGE_OFFSET_80000000
|
|
default 0xa0000000 if PAGE_OFFSET_A0000000
|
|
choice
|
|
|
|
prompt "C-SKY PMU type"
|
|
depends on PERF_EVENTS
|
|
depends on CPU_CK807 || CPU_CK810 || CPU_CK860
|
|
|
|
config CPU_PMU_NONE
|
|
bool "None"
|
|
|
|
config CSKY_PMU_V1
|
|
bool "Performance Monitoring Unit Ver.1"
|
|
|
|
endchoice
|
|
|
|
choice
|
|
prompt "Power Manager Instruction (wait/doze/stop)"
|
|
default CPU_PM_NONE
|
|
|
|
config CPU_PM_NONE
|
|
bool "None"
|
|
|
|
config CPU_PM_WAIT
|
|
bool "wait"
|
|
|
|
config CPU_PM_DOZE
|
|
bool "doze"
|
|
|
|
config CPU_PM_STOP
|
|
bool "stop"
|
|
endchoice
|
|
|
|
menuconfig HAVE_TCM
|
|
bool "Tightly-Coupled/Sram Memory"
|
|
depends on !COMPILE_TEST
|
|
help
|
|
The implementation are not only used by TCM (Tightly-Coupled Memory)
|
|
but also used by sram on SOC bus. It follow existed linux tcm
|
|
software interface, so that old tcm application codes could be
|
|
re-used directly.
|
|
|
|
if HAVE_TCM
|
|
config ITCM_RAM_BASE
|
|
hex "ITCM ram base"
|
|
default 0xffffffff
|
|
|
|
config ITCM_NR_PAGES
|
|
int "Page count of ITCM size: NR*4KB"
|
|
range 1 256
|
|
default 32
|
|
|
|
config HAVE_DTCM
|
|
bool "DTCM Support"
|
|
|
|
config DTCM_RAM_BASE
|
|
hex "DTCM ram base"
|
|
depends on HAVE_DTCM
|
|
default 0xffffffff
|
|
|
|
config DTCM_NR_PAGES
|
|
int "Page count of DTCM size: NR*4KB"
|
|
depends on HAVE_DTCM
|
|
range 1 256
|
|
default 32
|
|
endif
|
|
|
|
config CPU_HAS_VDSP
|
|
bool "CPU has VDSP coprocessor"
|
|
depends on CPU_HAS_FPU && CPU_HAS_FPUV2
|
|
|
|
config CPU_HAS_FPU
|
|
bool "CPU has FPU coprocessor"
|
|
depends on CPU_CK807 || CPU_CK810 || CPU_CK860
|
|
|
|
config CPU_HAS_ICACHE_INS
|
|
bool "CPU has Icache invalidate instructions"
|
|
depends on CPU_HAS_CACHEV2
|
|
|
|
config CPU_HAS_TEE
|
|
bool "CPU has Trusted Execution Environment"
|
|
depends on CPU_CK810
|
|
|
|
config SMP
|
|
bool "Symmetric Multi-Processing (SMP) support for C-SKY"
|
|
depends on CPU_CK860
|
|
default n
|
|
|
|
config NR_CPUS
|
|
int "Maximum number of CPUs (2-32)"
|
|
range 2 32
|
|
depends on SMP
|
|
default "4"
|
|
|
|
config HIGHMEM
|
|
bool "High Memory Support"
|
|
depends on !CPU_CK610
|
|
select KMAP_LOCAL
|
|
default y
|
|
|
|
config DRAM_BASE
|
|
hex "DRAM start addr (the same with memory-section in dts)"
|
|
default 0x0
|
|
|
|
config HOTPLUG_CPU
|
|
bool "Support for hot-pluggable CPUs"
|
|
select GENERIC_IRQ_MIGRATION
|
|
depends on SMP
|
|
help
|
|
Say Y here to allow turning CPUs off and on. CPUs can be
|
|
controlled through /sys/devices/system/cpu/cpu1/hotplug/target.
|
|
|
|
Say N if you want to disable CPU hotplug.
|
|
|
|
config HAVE_EFFICIENT_UNALIGNED_STRING_OPS
|
|
bool "Enable EFFICIENT_UNALIGNED_STRING_OPS for abiv2"
|
|
depends on CPU_CK807 || CPU_CK810 || CPU_CK860
|
|
help
|
|
Say Y here to enable EFFICIENT_UNALIGNED_STRING_OPS. Some CPU models could
|
|
deal with unaligned access by hardware.
|
|
|
|
endmenu
|
|
|
|
source "arch/csky/Kconfig.platforms"
|
|
|
|
source "kernel/Kconfig.hz"
|