BMC/Intel-BMC/linux.git/arch/csky/mm, branch dev-5.2

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46+00:00

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 Signed-off-by: Greg Kroah-Hartman

csky: Fixup compile warning

2019-04-22T06:46:23+00:00

The function of __va() will return "void *", but the pgd_base is unsigned long. Signed-off-by: Guo Ren Cc: Arnd Bergmann

csky: add page fault perf event support

2019-04-22T05:44:57+00:00

This patch add support for page fault count, major fault count and minorfault count. Without this patch page faults are not sampled for perf event. Performance counter stats for '/usr/lib/perf-test/callchain_test': 0 page-faults # 0.000 K/sec Signed-off-by: Mao Han Signed-off-by: Guo Ren

csky: Use va_pa_offset instead of phys_offset

2019-04-22T05:44:57+00:00

The name of phys_offset is so common for global export and it may conflict with some local name. So change phys_offset to va_pa_offset which also used by riscv. Also use __pa() and __va() instead of using phys_offset directly. Signed-off-by: Guo Ren Cc: Arnd Bergmann

csky: mm/fault.c: Remove duplicate header

2019-04-22T05:44:57+00:00

Remove duplicate header which is included twice. Signed-off-by: Jagadeesh Pagadala Signed-off-by: Guo Ren

treewide: add checks for the return value of memblock_alloc*()

2019-03-12T17:04:02+00:00

Add check for the return value of memblock_alloc*() functions and call panic() in case of error. The panic message repeats the one used by panicing memblock allocators with adjustment of parameters to include only relevant ones. The replacement was mostly automated with semantic patches like the one below with manual massaging of format strings. @@ expression ptr, size, align; @@ ptr = memblock_alloc(size, align); + if (!ptr) + panic("%s: Failed to allocate %lu bytes align=0x%lx\n", __func__, size, align); [anders.roxell@linaro.org: use '%pa' with 'phys_addr_t' type] Link: http://lkml.kernel.org/r/20190131161046.21886-1-anders.roxell@linaro.org [rppt@linux.ibm.com: fix format strings for panics after memblock_alloc] Link: http://lkml.kernel.org/r/1548950940-15145-1-git-send-email-rppt@linux.ibm.com [rppt@linux.ibm.com: don't panic if the allocation in sparse_buffer_init fails] Link: http://lkml.kernel.org/r/20190131074018.GD28876@rapoport-lnx [akpm@linux-foundation.org: fix xtensa printk warning] Link: http://lkml.kernel.org/r/1548057848-15136-20-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport Signed-off-by: Anders Roxell Reviewed-by: Guo Ren [c-sky] Acked-by: Paul Burton [MIPS] Acked-by: Heiko Carstens [s390] Reviewed-by: Juergen Gross [Xen] Reviewed-by: Geert Uytterhoeven [m68k] Acked-by: Max Filippov [xtensa] Cc: Catalin Marinas Cc: Christophe Leroy Cc: Christoph Hellwig Cc: "David S. Miller" Cc: Dennis Zhou Cc: Greentime Hu Cc: Greg Kroah-Hartman Cc: Guan Xuetao Cc: Guo Ren Cc: Mark Salter Cc: Matt Turner Cc: Michael Ellerman Cc: Michal Simek Cc: Petr Mladek Cc: Richard Weinberger Cc: Rich Felker Cc: Rob Herring Cc: Rob Herring Cc: Russell King Cc: Stafford Horne Cc: Tony Luck Cc: Vineet Gupta Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

csky: Fixup io-range page attribute for mmap("/dev/mem")

2019-02-13T01:48:14+00:00

Some user space drivers need accessing IO address and IO remap need SO(strong order) page-attribute to make IO operation correct. So we need add SO-page-attr for all non-memory address. Signed-off-by: Guo Ren Reported-by: Fan Xiaodong

Merge tag 'csky-for-linus-4.21' of git://github.com/c-sky/csky-linux

2019-01-05T17:50:07+00:00

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

csky: remove unused members in processor.h

2018-12-31T15:16:00+00:00

Cleanup struct cpuinfo_csky and struct thread_struct, remove all esp0 related code. We could get pt_regs from sp and backtrace could use fp in switch_stack. Signed-off-by: Guo Ren

csky: optimize kernel panic print.

2018-12-31T15:15:38+00:00

Use STACKTRACE to optimize panic print more pretty and align registers printing. Signed-off-by: Guo Ren