diff options
| -rw-r--r-- | cpu-all.h | 98 |
1 files changed, 95 insertions, 3 deletions
@@ -900,15 +900,107 @@ void cpu_tlb_update_dirty(CPUState *env); void dump_exec_info(FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...)); -/* profiling */ -#ifdef CONFIG_PROFILER -static inline int64_t profile_getclock(void) +/*******************************************/ +/* host CPU ticks (if available) */ + +#if defined(__powerpc__) + +static inline uint32_t get_tbl(void) +{ + uint32_t tbl; + asm volatile("mftb %0" : "=r" (tbl)); + return tbl; +} + +static inline uint32_t get_tbu(void) +{ + uint32_t tbl; + asm volatile("mftbu %0" : "=r" (tbl)); + return tbl; +} + +static inline int64_t cpu_get_real_ticks(void) +{ + uint32_t l, h, h1; + /* NOTE: we test if wrapping has occurred */ + do { + h = get_tbu(); + l = get_tbl(); + h1 = get_tbu(); + } while (h != h1); + return ((int64_t)h << 32) | l; +} + +#elif defined(__i386__) + +static inline int64_t cpu_get_real_ticks(void) { int64_t val; asm volatile ("rdtsc" : "=A" (val)); return val; } +#elif defined(__x86_64__) + +static inline int64_t cpu_get_real_ticks(void) +{ + uint32_t low,high; + int64_t val; + asm volatile("rdtsc" : "=a" (low), "=d" (high)); + val = high; + val <<= 32; + val |= low; + return val; +} + +#elif defined(__ia64) + +static inline int64_t cpu_get_real_ticks(void) +{ + int64_t val; + asm volatile ("mov %0 = ar.itc" : "=r"(val) :: "memory"); + return val; +} + +#elif defined(__s390__) + +static inline int64_t cpu_get_real_ticks(void) +{ + int64_t val; + asm volatile("stck 0(%1)" : "=m" (val) : "a" (&val) : "cc"); + return val; +} + +#elif defined(__sparc__) && defined(HOST_SOLARIS) + +static inline int64_t cpu_get_real_ticks (void) +{ +#if defined(_LP64) + uint64_t rval; + asm volatile("rd %%tick,%0" : "=r"(rval)); + return rval; +#else + union { + uint64_t i64; + struct { + uint32_t high; + uint32_t low; + } i32; + } rval; + asm volatile("rd %%tick,%1; srlx %1,32,%0" + : "=r"(rval.i32.high), "=r"(rval.i32.low)); + return rval.i64; +#endif +} +#endif + +/* profiling */ +#ifdef CONFIG_PROFILER +static inline int64_t profile_getclock(void) +{ + return cpu_get_real_ticks(); +} + extern int64_t kqemu_time, kqemu_time_start; extern int64_t qemu_time, qemu_time_start; extern int64_t tlb_flush_time; |