| #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 |
