18c07d23da
The implementation of show_stack will panic with wrong fp: addr = *fp++; because the fp isn't checked properly. The current implementations of show_stack, wchan and stack_trace haven't been designed properly, so just deprecate them. This patch is a reference to riscv's way, all codes are modified from arm's. The patch is passed with: - cat /proc/<pid>/stack - cat /proc/<pid>/wchan - echo c > /proc/sysrq-trigger Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
299 lines
6.1 KiB
Plaintext
299 lines
6.1 KiB
Plaintext
# 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 if NR_CPUS>2
|
|
select ARCH_WANT_FRAME_POINTERS if !CPU_CK610
|
|
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 HANDLE_DOMAIN_IRQ
|
|
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_CLOCKEVENTS
|
|
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 GX6605S_TIMER if CPU_CK610
|
|
select HAVE_ARCH_TRACEHOOK
|
|
select HAVE_ARCH_AUDITSYSCALL
|
|
select HAVE_COPY_THREAD_TLS
|
|
select HAVE_DEBUG_BUGVERBOSE
|
|
select HAVE_DYNAMIC_FTRACE
|
|
select HAVE_DYNAMIC_FTRACE_WITH_REGS
|
|
select HAVE_FUNCTION_TRACER
|
|
select HAVE_FUNCTION_GRAPH_TRACER
|
|
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_RSEQ
|
|
select HAVE_STACKPROTECTOR
|
|
select HAVE_SYSCALL_TRACEPOINTS
|
|
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 USB_ARCH_HAS_EHCI
|
|
select USB_ARCH_HAS_OHCI
|
|
select GENERIC_PCI_IOMAP
|
|
select HAVE_PCI
|
|
select PCI_DOMAINS_GENERIC if PCI
|
|
select PCI_SYSCALL if PCI
|
|
select PCI_MSI if PCI
|
|
|
|
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 TRACE_IRQFLAGS_SUPPORT
|
|
def_bool y
|
|
|
|
config CPU_TLB_SIZE
|
|
int
|
|
default "128" if (CPU_CK610 || CPU_CK807 || CPU_CK810)
|
|
default "1024" if (CPU_CK860)
|
|
|
|
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)
|
|
|
|
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 "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"
|
|
select GENERIC_ALLOCATOR
|
|
help
|
|
The implementation are not only used by TCM (Tightly-Coupled Meory)
|
|
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 "2"
|
|
|
|
config HIGHMEM
|
|
bool "High Memory Support"
|
|
depends on !CPU_CK610
|
|
default y
|
|
|
|
config FORCE_MAX_ZONEORDER
|
|
int "Maximum zone order"
|
|
default "11"
|
|
|
|
config RAM_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.
|
|
endmenu
|
|
|
|
source "arch/csky/Kconfig.platforms"
|
|
|
|
source "kernel/Kconfig.hz"
|