diff options
Diffstat (limited to 'config/cpu/powerpc/cycles.h')
| -rw-r--r-- | config/cpu/powerpc/cycles.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/config/cpu/powerpc/cycles.h b/config/cpu/powerpc/cycles.h index 45c874b..bdf9908 100644 --- a/config/cpu/powerpc/cycles.h +++ b/config/cpu/powerpc/cycles.h @@ -24,6 +24,9 @@ /* PowerPC */ #define CPU_FTR_601 0x00000100 +#ifdef __powerpc64__ +#define CPU_FTR_CELL_TB_BUG 0x0000800000000000UL +#endif /* __powerpc64__ */ typedef unsigned long cycles_t; @@ -35,6 +38,26 @@ static inline cycles_t get_cycles(void) { cycles_t ret = 0; +#ifdef __powerpc64__ +#ifdef ENABLE_CELLBE + asm volatile( \ + "90: mftb %0;\n" \ + "97: cmpwi %0,0;\n" \ + " beq- 90b;\n" \ + "99:\n" \ + ".section __ftr_fixup,\"a\"\n" \ + ".align 3\n" \ + "98:\n" \ + " .llong %1\n" \ + " .llong %1\n" \ + " .llong 97b-98b\n" \ + " .llong 99b-98b\n" \ + ".previous" \ + : "=r" (ret) : "i" (CPU_FTR_CELL_TB_BUG)); +#else /* !ENABLE_CELLBE */ + __asm__ __volatile__("mftb %0" : "=r" (ret)); +#endif /* !ENABLE_CELLBE */ +#else /* !__powerpc64__ */ __asm__ __volatile__( "98: mftb %0\n" "99:\n" @@ -45,6 +68,7 @@ static inline cycles_t get_cycles(void) " .long 99b\n" ".previous" : "=r" (ret) : "i" (CPU_FTR_601)); +#endif /* !__powerpc64__ */ return ret; } |