diff options
Diffstat (limited to 'arch/csky/include')
| -rw-r--r-- | arch/csky/include/asm/cmpxchg.h | 10 | ||||
| -rw-r--r-- | arch/csky/include/uapi/asm/unistd.h | 1 |
2 files changed, 11 insertions, 0 deletions
diff --git a/arch/csky/include/asm/cmpxchg.h b/arch/csky/include/asm/cmpxchg.h index 916043b845..db6dda4718 100644 --- a/arch/csky/include/asm/cmpxchg.h +++ b/arch/csky/include/asm/cmpxchg.h @@ -6,6 +6,7 @@ #ifdef CONFIG_SMP #include <linux/bug.h> #include <asm/barrier.h> +#include <linux/cmpxchg-emu.h> #define __xchg_relaxed(new, ptr, size) \ ({ \ @@ -61,6 +62,9 @@ __typeof__(old) __old = (old); \ __typeof__(*(ptr)) __ret; \ switch (size) { \ + case 1: \ + __ret = (__typeof__(*(ptr)))cmpxchg_emu_u8((volatile u8 *)__ptr, (uintptr_t)__old, (uintptr_t)__new); \ + break; \ case 4: \ asm volatile ( \ "1: ldex.w %0, (%3) \n" \ @@ -91,6 +95,9 @@ __typeof__(old) __old = (old); \ __typeof__(*(ptr)) __ret; \ switch (size) { \ + case 1: \ + __ret = (__typeof__(*(ptr)))cmpxchg_emu_u8((volatile u8 *)__ptr, (uintptr_t)__old, (uintptr_t)__new); \ + break; \ case 4: \ asm volatile ( \ "1: ldex.w %0, (%3) \n" \ @@ -122,6 +129,9 @@ __typeof__(old) __old = (old); \ __typeof__(*(ptr)) __ret; \ switch (size) { \ + case 1: \ + __ret = (__typeof__(*(ptr)))cmpxchg_emu_u8((volatile u8 *)__ptr, (uintptr_t)__old, (uintptr_t)__new); \ + break; \ case 4: \ asm volatile ( \ RELEASE_FENCE \ diff --git a/arch/csky/include/uapi/asm/unistd.h b/arch/csky/include/uapi/asm/unistd.h index 7ff6a2466a..e0594b6370 100644 --- a/arch/csky/include/uapi/asm/unistd.h +++ b/arch/csky/include/uapi/asm/unistd.h @@ -6,6 +6,7 @@ #define __ARCH_WANT_SYS_CLONE3 #define __ARCH_WANT_SET_GET_RLIMIT #define __ARCH_WANT_TIME32_SYSCALLS +#define __ARCH_WANT_SYNC_FILE_RANGE2 #include <asm-generic/unistd.h> #define __NR_set_thread_area (__NR_arch_specific_syscall + 0) |