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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-01-05 09:50:07 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-01-05 09:50:07 -0800 |
commit | 9ee3b3f4a5eb523ef27675ac2fcd2269b9d68767 (patch) | |
tree | bd99b23002b5c34c1977c727bae7f1882171be57 /arch/csky/Kconfig | |
parent | a65981109f294ba7e64b33ad3b4575a4636fce66 (diff) | |
parent | f50fd2d8524c15b08da9e7e9d84752f0f1be7172 (diff) | |
download | linux-9ee3b3f4a5eb523ef27675ac2fcd2269b9d68767.tar.bz2 |
Merge tag 'csky-for-linus-4.21' of git://github.com/c-sky/csky-linux
Pull arch/csky updates from Guo Ren:
"Here are three main features (cpu_hotplug, basic ftrace, basic perf)
and some bugfixes:
Features:
- Add CPU-hotplug support for SMP
- Add ftrace with function trace and function graph trace
- Add Perf support
- Add EM_CSKY_OLD 39
- optimize kernel panic print.
- remove syscall_exit_work
Bugfixes:
- fix abiv2 mmap(... O_SYNC) failure
- fix gdb coredump error
- remove vdsp implement for kernel
- fix qemu failure to bootup sometimes
- fix ftrace call-graph panic
- fix device tree node reference leak
- remove meaningless header-y
- fix save hi,lo,dspcr regs in switch_stack
- remove unused members in processor.h"
* tag 'csky-for-linus-4.21' of git://github.com/c-sky/csky-linux:
csky: Add perf support for C-SKY
csky: Add EM_CSKY_OLD 39
clocksource/drivers/c-sky: fixup ftrace call-graph panic
csky: ftrace call graph supported.
csky: basic ftrace supported
csky: remove unused members in processor.h
csky: optimize kernel panic print.
csky: stacktrace supported.
csky: CPU-hotplug supported for SMP
clocksource/drivers/c-sky: fixup qemu fail to bootup sometimes.
csky: fixup save hi,lo,dspcr regs in switch_stack.
csky: remove syscall_exit_work
csky: fixup remove vdsp implement for kernel.
csky: bugfix gdb coredump error.
csky: fixup abiv2 mmap(... O_SYNC) failed.
csky: define syscall_get_arch()
elf-em.h: add EM_CSKY
csky: remove meaningless header-y
csky: Don't leak device tree node reference
Diffstat (limited to 'arch/csky/Kconfig')
-rw-r--r-- | arch/csky/Kconfig | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig index 37bed8aadf95..398113c845f5 100644 --- a/arch/csky/Kconfig +++ b/arch/csky/Kconfig @@ -28,10 +28,13 @@ config CSKY select GENERIC_SCHED_CLOCK select GENERIC_SMP_IDLE_THREAD select HAVE_ARCH_TRACEHOOK + select HAVE_FUNCTION_TRACER + select HAVE_FUNCTION_GRAPH_TRACER select HAVE_GENERIC_DMA_COHERENT select HAVE_KERNEL_GZIP select HAVE_KERNEL_LZO select HAVE_KERNEL_LZMA + select HAVE_PERF_EVENTS select HAVE_C_RECORDMCOUNT select HAVE_DMA_API_DEBUG select HAVE_DMA_CONTIGUOUS @@ -40,7 +43,7 @@ config CSKY select OF select OF_EARLY_FLATTREE select OF_RESERVED_MEM - select PERF_USE_VMALLOC + select PERF_USE_VMALLOC if CPU_CK610 select RTC_LIB select TIMER_OF select USB_ARCH_HAS_EHCI @@ -93,6 +96,9 @@ config MMU config RWSEM_GENERIC_SPINLOCK def_bool y +config STACKTRACE_SUPPORT + def_bool y + config TIME_LOW_RES def_bool y @@ -145,6 +151,19 @@ config CPU_CK860 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 @@ -197,6 +216,15 @@ 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 "kernel/Kconfig.hz" |