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| author | Hongliang Wang <wanghongliang@loongson.cn> | 2023-09-26 09:12:01 +0800 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2024-02-16 09:33:10 -0500 |
| commit | 522bd54edaa2fa404fd428f8ad0bcb0f0bec5639 (patch) | |
| tree | dfe88361bcbbd17ac53b8af36cb52337f21095e9 /arch/loongarch64/atomic_arch.h | |
| parent | 4a16ddf53e7c634169d0a649782f8a724611f263 (diff) | |
| download | musl-522bd54edaa2fa404fd428f8ad0bcb0f0bec5639.tar.gz | |
add loongarch64 port
Author: Xiaojuan Zhai <zhaixiaojuan@loongson.cn>
Author: Meidan Li <limeidan@loongson.cn>
Author: Guoqi Chen <chenguoqi@loongson.cn>
Author: Xiaolin Zhao <zhaoxiaolin@loongson.cn>
Author: Fan peng <fanpeng@loongson.cn>
Author: Jiantao Shan <shanjiantao@loongson.cn>
Author: Xuhui Qiang <qiangxuhui@loongson.cn>
Author: Jingyun Hua <huajingyun@loongson.cn>
Author: Liu xue <liuxue@loongson.cn>
Author: Hongliang Wang <wanghongliang@loongson.cn>
Diffstat (limited to 'arch/loongarch64/atomic_arch.h')
| -rw-r--r-- | arch/loongarch64/atomic_arch.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/loongarch64/atomic_arch.h b/arch/loongarch64/atomic_arch.h new file mode 100644 index 00000000..2225d027 --- /dev/null +++ b/arch/loongarch64/atomic_arch.h @@ -0,0 +1,53 @@ +#define a_ll a_ll +static inline int a_ll(volatile int *p) +{ + int v; + __asm__ __volatile__ ( + "ll.w %0, %1" + : "=r"(v) + : "ZC"(*p)); + return v; +} + +#define a_sc a_sc +static inline int a_sc(volatile int *p, int v) +{ + int r; + __asm__ __volatile__ ( + "sc.w %0, %1" + : "=r"(r), "=ZC"(*p) + : "0"(v) : "memory"); + return r; +} + +#define a_ll_p a_ll_p +static inline void *a_ll_p(volatile void *p) +{ + void *v; + __asm__ __volatile__ ( + "ll.d %0, %1" + : "=r"(v) + : "ZC"(*(void *volatile *)p)); + return v; +} + +#define a_sc_p a_sc_p +static inline int a_sc_p(volatile void *p, void *v) +{ + long r; + __asm__ __volatile__ ( + "sc.d %0, %1" + : "=r"(r), "=ZC"(*(void *volatile *)p) + : "0"(v) + : "memory"); + return r; +} + +#define a_barrier a_barrier +static inline void a_barrier() +{ + __asm__ __volatile__ ("dbar 0" : : : "memory"); +} + +#define a_pre_llsc a_barrier +#define a_post_llsc a_barrier |