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Subject[GIT PULL] csky patches for the 4.21 merge window
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Hi Linus,

The following changes since commit 7566ec393f4161572ba6f11ad5171fd5d59b0fbd:

Linux 4.20-rc7 (2018-12-16 15:46:55 -0800)

are available in the git repository at:

git@github.com:c-sky/csky-linux.git tags/csky-for-linus-4.21

for you to fetch changes up to f50fd2d8524c15b08da9e7e9d84752f0f1be7172:

csky: Add perf support for C-SKY (2019-01-02 22:17:11 +0800)

----------------------------------------------------------------
arch/csky patches for 4.21-rc1

Here is the arch/csky patch set for the 4.21-rc1 merge window.
Contianed in here is some 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:
- fixup abiv2 mmap(... O_SYNC) failed.
- fixup gdb coredump error.
- fixup remove vdsp implement for kernel.
- fixup qemu fail to bootup sometimes.
- fixup ftrace call-graph panic
- fixup leak device tree node reference
- fixup remove meaningless header-y
- fixup save hi,lo,dspcr regs in switch_stack.
- fixup unused members in processor.h

----------------------------------------------------------------
Dmitry V. Levin (2):
elf-em.h: add EM_CSKY
csky: define syscall_get_arch()

Guo Ren (15):
csky: fixup abiv2 mmap(... O_SYNC) failed.
csky: bugfix gdb coredump error.
csky: fixup remove vdsp implement for kernel.
csky: remove syscall_exit_work
csky: fixup save hi,lo,dspcr regs in switch_stack.
clocksource/drivers/c-sky: fixup qemu fail to bootup sometimes.
csky: CPU-hotplug supported for SMP
csky: stacktrace supported.
csky: optimize kernel panic print.
csky: remove unused members in processor.h
csky: basic ftrace supported
csky: ftrace call graph supported.
clocksource/drivers/c-sky: fixup ftrace call-graph panic
csky: Add EM_CSKY_OLD 39
csky: Add perf support for C-SKY

Masahiro Yamada (1):
csky: remove meaningless header-y

Yangtao Li (1):
csky: Don't leak device tree node reference

arch/csky/Kconfig | 30 +-
arch/csky/Makefile | 4 +
arch/csky/abiv1/inc/abi/pgtable-bits.h | 1 +
arch/csky/abiv1/inc/abi/switch_context.h | 17 +
arch/csky/abiv2/Makefile | 1 +
arch/csky/abiv2/inc/abi/entry.h | 28 +-
arch/csky/abiv2/inc/abi/pgtable-bits.h | 2 +-
arch/csky/abiv2/inc/abi/switch_context.h | 32 +
arch/csky/abiv2/mcount.S | 124 ++++
arch/csky/abiv2/memcpy.S | 8 +-
arch/csky/include/asm/elf.h | 13 +-
arch/csky/include/asm/ftrace.h | 13 +
arch/csky/include/asm/perf_event.h | 7 +
arch/csky/include/asm/processor.h | 15 +-
arch/csky/include/asm/smp.h | 4 +
arch/csky/include/asm/syscall.h | 7 +
arch/csky/include/asm/thread_info.h | 4 +
arch/csky/include/uapi/asm/Kbuild | 2 -
arch/csky/include/uapi/asm/ptrace.h | 39 +-
arch/csky/kernel/Makefile | 7 +
arch/csky/kernel/asm-offsets.c | 3 -
arch/csky/kernel/dumpstack.c | 59 +-
arch/csky/kernel/entry.S | 50 +-
arch/csky/kernel/ftrace.c | 50 ++
arch/csky/kernel/perf_event.c | 1031 ++++++++++++++++++++++++++++++
arch/csky/kernel/process.c | 29 +-
arch/csky/kernel/ptrace.c | 42 +-
arch/csky/kernel/signal.c | 2 -
arch/csky/kernel/smp.c | 73 ++-
arch/csky/kernel/stacktrace.c | 57 ++
arch/csky/kernel/traps.c | 6 -
arch/csky/mm/fault.c | 7 +-
arch/csky/mm/ioremap.c | 2 +-
drivers/clocksource/timer-mp-csky.c | 6 +-
include/uapi/linux/audit.h | 1 +
include/uapi/linux/elf-em.h | 1 +
36 files changed, 1555 insertions(+), 222 deletions(-)
create mode 100644 arch/csky/abiv1/inc/abi/switch_context.h
create mode 100644 arch/csky/abiv2/inc/abi/switch_context.h
create mode 100644 arch/csky/abiv2/mcount.S
create mode 100644 arch/csky/include/asm/ftrace.h
create mode 100644 arch/csky/include/asm/perf_event.h
create mode 100644 arch/csky/kernel/ftrace.c
create mode 100644 arch/csky/kernel/perf_event.c
create mode 100644 arch/csky/kernel/stacktrace.c

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