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linux/arch/csky/Kconfig

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treewide: Add SPDX license identifier - Makefile/Kconfig Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-19 20:07:45 +08:00
# SPDX-License-Identifier: GPL-2.0-only
csky: Build infrastructure This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:06 +08:00
config CSKY
def_bool y
32-bit userspace ABI: introduce ARCH_32BIT_OFF_T config option All new 32-bit architectures should have 64-bit userspace off_t type, but existing architectures has 32-bit ones. To enforce the rule, new config option is added to arch/Kconfig that defaults ARCH_32BIT_OFF_T to be disabled for new 32-bit architectures. All existing 32-bit architectures enable it explicitly. New option affects force_o_largefile() behaviour. Namely, if userspace off_t is 64-bits long, we have no reason to reject user to open big files. Note that even if architectures has only 64-bit off_t in the kernel (arc, c6x, h8300, hexagon, nios2, openrisc, and unicore32), a libc may use 32-bit off_t, and therefore want to limit the file size to 4GB unless specified differently in the open flags. Signed-off-by: Yury Norov <ynorov@caviumnetworks.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Yury Norov <ynorov@marvell.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-05-16 16:18:49 +08:00
select ARCH_32BIT_OFF_T
dma-mapping: add a Kconfig symbol to indicate arch_dma_prep_coherent presence Add a Kconfig symbol that indicates an architecture provides a arch_dma_prep_coherent implementation, and provide a stub otherwise. This will allow the generic dma-iommu code to use it while still allowing to be built for cache coherent architectures. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com>
2019-03-25 22:44:06 +08:00
select ARCH_HAS_DMA_PREP_COHERENT
csky: Build infrastructure This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:06 +08:00
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 COMMON_CLK
select CLKSRC_MMIO
select CLKSRC_OF
csky: use the generic remapping dma alloc implementation The csky code was largely copied from arm/arm64, so switch to the generic arm64-based implementation instead. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Guo Ren <ren_guo@c-sky.com>
2018-11-05 00:47:44 +08:00
select DMA_DIRECT_REMAP
csky: Build infrastructure This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:06 +08:00
select IRQ_DOMAIN
select HANDLE_DOMAIN_IRQ
select DW_APB_TIMER_OF
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 HAVE_ARCH_TRACEHOOK
csky: Update syscall_trace_enter/exit implementation Previous syscall_trace implementation couldn't support AUDITSYSCALL and SYSCALL_TRACEPOINTS. Now we redesign it to support audit_syscall and syscall_tracepoints just like other archs'. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Dmitry V. Levin <ldv@altlinux.org> Cc: Arnd Bergmann <arnd@arndb.de>
2019-03-20 18:27:27 +08:00
select HAVE_ARCH_AUDITSYSCALL
csky/ftrace: Add dynamic function tracer (include graph tracer) Support dynamic ftrace including dynamic graph tracer. Gcc-csky with -pg will produce call site in every function prologue and we can use these call site to hook trace function. gcc with -pg origin call site: push lr jbsr _mcount nop32 nop32 If the (callee - caller)'s offset is in range of bsr instruction, we'll modify code with: push lr bsr _mcount nop32 nop32 Else if the (callee - caller)'s offset is out of bsr instrunction, we'll modify code with: push lr movih r26, ... ori r26, ... jsr r26 (r26 is reserved for jsr link reg in csky abiv2 spec.) Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2019-03-01 08:50:36 +08:00
select HAVE_DYNAMIC_FTRACE
csky: basic ftrace supported When gcc with -pg, it'll add _mcount stub in every function. We need implement the _mcount in kernel and ftrace depends on stackstrace. To do: call-graph, dynamic ftrace Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-12-09 14:29:59 +08:00
select HAVE_FUNCTION_TRACER
csky: ftrace call graph supported. With csky-gcc -pg -mbacktrace, ftrace call graph supported. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-12-15 21:04:27 +08:00
select HAVE_FUNCTION_GRAPH_TRACER
csky/ftrace: Add dynamic function tracer (include graph tracer) Support dynamic ftrace including dynamic graph tracer. Gcc-csky with -pg will produce call site in every function prologue and we can use these call site to hook trace function. gcc with -pg origin call site: push lr jbsr _mcount nop32 nop32 If the (callee - caller)'s offset is in range of bsr instruction, we'll modify code with: push lr bsr _mcount nop32 nop32 Else if the (callee - caller)'s offset is out of bsr instrunction, we'll modify code with: push lr movih r26, ... ori r26, ... jsr r26 (r26 is reserved for jsr link reg in csky abiv2 spec.) Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2019-03-01 08:50:36 +08:00
select HAVE_FTRACE_MCOUNT_RECORD
csky: Build infrastructure This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:06 +08:00
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_LZO
select HAVE_KERNEL_LZMA
csky: Add perf support for C-SKY This adds basic perf support for all C-SKY CPUs. Hardware events are only supported by 807/810/860. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2019-01-02 22:09:25 +08:00
select HAVE_PERF_EVENTS
csky: Add support for perf registers sampling This patch implements the perf registers sampling and validation API for csky arch. The valid registers and their register ID are defined in perf_regs.h. Perf tool can backtrace in userspace with unwind library and the registers/user stack dump support. Signed-off-by: Mao Han <han_mao@c-sky.com> Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2019-04-15 17:17:29 +08:00
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
csky: Build infrastructure This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:06 +08:00
select HAVE_DMA_API_DEBUG
select HAVE_DMA_CONTIGUOUS
csky: Update syscall_trace_enter/exit implementation Previous syscall_trace implementation couldn't support AUDITSYSCALL and SYSCALL_TRACEPOINTS. Now we redesign it to support audit_syscall and syscall_tracepoints just like other archs'. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Dmitry V. Levin <ldv@altlinux.org> Cc: Arnd Bergmann <arnd@arndb.de>
2019-03-20 18:27:27 +08:00
select HAVE_SYSCALL_TRACEPOINTS
csky: Build infrastructure This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:06 +08:00
select MAY_HAVE_SPARSE_IRQ
select MODULES_USE_ELF_RELA if MODULES
select OF
select OF_EARLY_FLATTREE
csky: Add perf support for C-SKY This adds basic perf support for all C-SKY CPUs. Hardware events are only supported by 807/810/860. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2019-01-02 22:09:25 +08:00
select PERF_USE_VMALLOC if CPU_CK610
csky: Build infrastructure This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:06 +08:00
select RTC_LIB
select TIMER_OF
select USB_ARCH_HAS_EHCI
select USB_ARCH_HAS_OHCI
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" instrcutions to 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
csky: stacktrace supported. The gcc option "-mbacktrace" will push fp(r8),lr into stack and we could unwind the stack with: fp = *fp lr = (unsigned int *)fp[1] Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-12-09 14:18:05 +08:00
config STACKTRACE_SUPPORT
def_bool y
csky: Build infrastructure This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:06 +08:00
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
csky: Add perf support for C-SKY This adds basic perf support for all C-SKY CPUs. Hardware events are only supported by 807/810/860. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2019-01-02 22:09:25 +08:00
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
csky: Build infrastructure This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:06 +08:00
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
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_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
csky: CPU-hotplug supported for SMP This is a simple implement of CPU-hotplug for power saving. CPU use wait instruction to enter power saving mode and waiting for IPI wakeup signal. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-12-19 19:56:14 +08:00
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.
csky: Build infrastructure This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:06 +08:00
endmenu
source "kernel/Kconfig.hz"