| #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; | |
| #if __mips < 2 | |
| __asm__ __volatile__ ( | |
| ".set push ; .set mips2\n\t" | |
| "ll %0, %1" | |
| "\n\t.set pop" | |
| : "=r"(v) : "m"(*p)); | |
| #else | |
| __asm__ __volatile__ ( | |
| "ll %0, %1" | |
| : "=r"(v) : LLSC_M(*p)); | |
| #endif | |
| return v; | |
| } | |
| #define a_sc a_sc | |
| static inline int a_sc(volatile int *p, int v) | |
| { | |
| int r; | |
| #if __mips < 2 | |
| __asm__ __volatile__ ( | |
| ".set push ; .set mips2\n\t" | |
| "sc %0, %1" | |
| "\n\t.set pop" | |
| : "=r"(r), "=m"(*p) : "0"(v) : "memory"); | |
| #else | |
| __asm__ __volatile__ ( | |
| "sc %0, %1" | |
| : "=r"(r), "="LLSC_M(*p) : "0"(v) : "memory"); | |
| #endif | |
| 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 |