kernel.git/arch/csky/include, branch linux-4.20.y

csky: fixup CACHEV1 store instruction fast retire

2019-02-20T09:29:02Z

[ Upstream commit 96354ad79e2e59f9d620669c8e1ac2452440c260 ] For I/O access, 810/807 store instruction fast retire will cause wrong primitive. For example: stw (clear interrupt source) stw (unmask interrupt controller) enable interrupt stw is fast retire instruction. When PC is run at enable interrupt stage, the clear interrupt source hasn't finished. It will cause another wrong irq-enter. So use mb() to prevent above. Signed-off-by: Guo Ren Cc: Lu Baoquan Signed-off-by: Sasha Levin

csky: bugfix tlb_get_pgd error.

2018-12-03T02:49:11Z

It's wrong to mask/unmask highest bit in addr to translate the vaddr to paddr. We should use PAGE_OFFSET and PHYS_OFFSET. Wrong implement: return ((get_pgd()|(1<<31)) - PHYS_OFFSET) & ~1; When PHYS_OFFSET=0xc0000000 and get_pgd() return 0xe0000000, it'll return 0x60000000. It's wrong and should be 0xa0000000. Now correct it to: return ((get_pgd() - PHYS_OFFSET) & ~1) + PAGE_OFFSET; Signed-off-by: Guo Ren

treewide: remove current_text_addr

2018-10-31T15:54:12Z

Prefer _THIS_IP_ defined in linux/kernel.h. Most definitions of current_text_addr were the same as _THIS_IP_, but a few archs had inline assembly instead. This patch removes the final call site of current_text_addr, making all of the definitions dead code. [akpm@linux-foundation.org: fix arch/csky/include/asm/processor.h] Link: http://lkml.kernel.org/r/20180911182413.180715-1-ndesaulniers@google.com Signed-off-by: Nick Desaulniers Cc: Peter Zijlstra Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

csky: Misc headers

2018-10-25T16:54:26Z

This patch adds csky registers' definition, bitops, byteorder, asm-offsets codes. Signed-off-by: Guo Ren Reviewed-by: Arnd Bergmann

csky: SMP support

2018-10-25T16:54:26Z

This patch adds boot, ipi, hotplug codes for SMP. Signed-off-by: Guo Ren Cc: Marc Zyngier Cc: Mark Rutland Cc: Peter Zijlstra Reviewed-by: Arnd Bergmann

csky: Debug and Ptrace GDB

2018-10-25T16:54:25Z

This patch adds arch ptrace implementation, stack dump and bug.h. Signed-off-by: Guo Ren Reviewed-by: Arnd Bergmann

csky: User access

2018-10-25T16:54:25Z

The patch adds "user access from kernel" codes. Signed-off-by: Guo Ren Reviewed-by: Arnd Bergmann

csky: Library functions

2018-10-25T16:54:24Z

This patch adds string optimize codes and some auxiliary codes. Signed-off-by: Chen Linfei Signed-off-by: Mao Han Signed-off-by: Guo Ren Reviewed-by: Arnd Bergmann

csky: ELF and module probe

2018-10-25T16:54:23Z

This patch adds ELF definition and module relocate codes. Signed-off-by: Guo Ren Reviewed-by: Arnd Bergmann

csky: Atomic operations

2018-10-25T16:54:23Z

This patch adds atomic, cmpxchg, spinlock files. Signed-off-by: Guo Ren Cc: Andrea Parri Cc: Arnd Bergmann Reviewed-by: Peter Zijlstra