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export cpu_get_real_ticks()

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2048 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2006-07-13 23:00:40 +00:00
parent 9f909fefd5
commit effedbc915
1 changed files with 95 additions and 3 deletions
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98
cpu-all.h
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@ -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;