export cpu_get_real_ticks()
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2048 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/cpu-all.h b/cpu-all.h
index 6d6eb1a..e21bd54 100644
--- a/cpu-all.h
+++ b/cpu-all.h
@@ -900,15 +900,107 @@
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;
