forked from Minki/linux
2044513ffe
Features: - seccomp-filter - err-injection - top-down&random mmap-layout - irq_work - show_ipi - context-tracking) Fixup & Optimize: - kprobe_on_ftrace - optimize panic print -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE2KAv+isbWR/viAKHAXH1GYaIxXsFAl8rSUESHHJlbl9ndW9A Yy1za3kuY29tAAoJEAFx9RmGiMV7REoP/jABI6Xa3YH5Xfh4Xmr/CSM7vYMMMjsc 2+t1tJ9EHrOR4wEhG6bX8C2uGwtnwb9u5B9JY1fQ9nbrLtKPNlhpq9ukOmztOqEp EuAZZ3NildOKdRwyK4SaV3Mf1TbPg75EX7u/MuwQuTy3dKqvSu3VigJ3XN2VvpOz orbRID0FMYAG76QCqCm3ddrUD/Jm6IIeMpCxEF5VT05+OBdmmuYS6uOF8Cmm432F OX2WZhoo8vjNe+orVPxNxTojuBXve/ygHGLq7CSMZuoJdoArQKKD7+fpAupDR9qq LWZMqfYRmIPXsWT/MlZVb/w2AHDKvZXPWvDT7Imw3Y7A/jMNd4zbULXt0S3Pq3Y/ LMC8SvC9Ag5GZLKPKj3f+1G4rr3h/WT4Ey6QURiHoxEVO91tdRyRY5JMjDf0W18K XMl4pDEbFHNGl8Ph+fBeTwTNCsH2PkHP8ESUHLIw+2wbNSk+9XvjGJ7dC3wffVp4 oZcGB/8EPLGxTgM+pXfiP1M39B58ku+Duf1iNXXx3RDA7znSpVRCAmCk2jXygXmH NsRBg/lNxD7ZeHLbH1qIbROzIRV1scvnt5iUM8J15SnW21xK3VisrcHUWiB7xHrr u0lLAW0mG1wpK78TXIO7jlHYMgy5er5pMIGJ9e2UJHYJ13h8p1s6PKXSXERprSjc 0HqOLF0bxcse =l7rw -----END PGP SIGNATURE----- Merge tag 'csky-for-linus-5.9-rc1' of https://github.com/c-sky/csky-linux Pull arch/csky updates from Guo Ren: "New features: - seccomp-filter - err-injection - top-down&random mmap-layout - irq_work - show_ipi - context-tracking Fixes & Optimizations: - kprobe_on_ftrace - optimize panic print" * tag 'csky-for-linus-5.9-rc1' of https://github.com/c-sky/csky-linux: csky: Add context tracking support csky: Add arch_show_interrupts for IPI interrupts csky: Add irq_work support csky: Fixup warning by EXPORT_SYMBOL(kmap) csky: Set CONFIG_NR_CPU 4 as default csky: Use top-down mmap layout csky: Optimize the trap processing flow csky: Add support for function error injection csky: Fixup kprobes handler couldn't change pc csky: Fixup duplicated restore sp in RESTORE_REGS_FTRACE csky: Add cpu feature register hint for smp csky: Add SECCOMP_FILTER supported csky: remove unusued thread_saved_pc and *_segments functions/macros
325 lines
7.1 KiB
Plaintext
325 lines
7.1 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 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 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_ARCH_MMAP_RND_BITS
|
|
select HAVE_ARCH_SECCOMP_FILTER
|
|
select HAVE_CONTEXT_TRACKING
|
|
select HAVE_VIRT_CPU_ACCOUNTING_GEN
|
|
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_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_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)
|
|
|
|
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 "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 "4"
|
|
|
|
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"
|
|
|
|
config SECCOMP
|
|
bool "Enable seccomp to safely compute untrusted bytecode"
|
|
help
|
|
This kernel feature is useful for number crunching applications
|
|
that may need to compute untrusted bytecode during their
|
|
execution. By using pipes or other transports made available to
|
|
the process as file descriptors supporting the read/write
|
|
syscalls, it's possible to isolate those applications in
|
|
their own address space using seccomp. Once seccomp is
|
|
enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
|
|
and the task is only allowed to execute a few safe syscalls
|
|
defined by each seccomp mode.
|