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Diffstat (limited to '')
-rw-r--r-- | libc-top-half/musl/arch/mips64/atomic_arch.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/libc-top-half/musl/arch/mips64/atomic_arch.h b/libc-top-half/musl/arch/mips64/atomic_arch.h new file mode 100644 index 0000000..d0f8b4a --- /dev/null +++ b/libc-top-half/musl/arch/mips64/atomic_arch.h @@ -0,0 +1,56 @@ +#if __mips_isa_rev < 6 +#define LLSC_M "m" +#else +#define LLSC_M "ZC" +#endif + +#define a_ll a_ll +static inline int a_ll(volatile int *p) +{ + int v; + __asm__ __volatile__ ( + "ll %0, %1" + : "=r"(v) : LLSC_M(*p)); + return v; +} + +#define a_sc a_sc +static inline int a_sc(volatile int *p, int v) +{ + int r; + __asm__ __volatile__ ( + "sc %0, %1" + : "=r"(r), "="LLSC_M(*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__ ( + "lld %0, %1" + : "=r"(v) : LLSC_M(*(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__ ( + "scd %0, %1" + : "=r"(r), "="LLSC_M(*(void *volatile *)p) : "0"(v) : "memory"); + return r; +} + +#define a_barrier a_barrier +static inline void a_barrier() +{ + __asm__ __volatile__ ("sync" : : : "memory"); +} + +#define a_pre_llsc a_barrier +#define a_post_llsc a_barrier + +#undef LLSC_M |