#define QEMU_TIMER_H
#include "qemu-common.h"
+#include <time.h>
+#include <sys/time.h>
+
+#ifdef _WIN32
+#include <windows.h>
+#include <mmsystem.h>
+#endif
/* timers */
return 1000000000LL;
}
+/* real time host monotonic timer */
+static inline int64_t get_clock_realtime(void)
+{
+ struct timeval tv;
+
+ gettimeofday(&tv, NULL);
+ return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
+}
+
+/* Warning: don't insert tracepoints into these functions, they are
+ also used by simpletrace backend and tracepoints would cause
+ an infinite recursion! */
+#ifdef _WIN32
+extern int64_t clock_freq;
+
+static inline int64_t get_clock(void)
+{
+ LARGE_INTEGER ti;
+ QueryPerformanceCounter(&ti);
+ return muldiv64(ti.QuadPart, get_ticks_per_sec(), clock_freq);
+}
+
+#else
+
+extern int use_rt_clock;
+
+static inline int64_t get_clock(void)
+{
+#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
+ || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
+ if (use_rt_clock) {
+ struct timespec ts;
+ clock_gettime(CLOCK_MONOTONIC, &ts);
+ return ts.tv_sec * 1000000000LL + ts.tv_nsec;
+ } else
+#endif
+ {
+ /* XXX: using gettimeofday leads to problems if the date
+ changes, so it should be avoided. */
+ return get_clock_realtime();
+ }
+}
+#endif
void qemu_get_timer(QEMUFile *f, QEMUTimer *ts);
void qemu_put_timer(QEMUFile *f, QEMUTimer *ts);
#else
/* http://ozlabs.org/pipermail/linuxppc-dev/1999-October/003889.html */
unsigned long junk;
- __asm__ __volatile__ ("mftbu %1\n\t"
- "mftb %L0\n\t"
- "mftbu %0\n\t"
+ __asm__ __volatile__ ("mfspr %1,269\n\t" /* mftbu */
+ "mfspr %L0,268\n\t" /* mftb */
+ "mfspr %0,269\n\t" /* mftbu */
"cmpw %0,%1\n\t"
"bne $-16"
: "=r" (retval), "=r" (junk));
return (int64_t)(count * cyc_per_count);
}
+#elif defined(__alpha__)
+
+static inline int64_t cpu_get_real_ticks(void)
+{
+ uint64_t cc;
+ uint32_t cur, ofs;
+
+ asm volatile("rpcc %0" : "=r"(cc));
+ cur = cc;
+ ofs = cc >> 32;
+ return cur - ofs;
+}
+
#else
/* The host CPU doesn't have an easily accessible cycle counter.
Just return a monotonically increasing value. This will be
}
#endif
+#ifdef CONFIG_PROFILER
+static inline int64_t profile_getclock(void)
+{
+ return cpu_get_real_ticks();
+}
+
+extern int64_t qemu_time, qemu_time_start;
+extern int64_t tlb_flush_time;
+extern int64_t dev_time;
+#endif
+
#endif