diff options
author | Paolo Bonzini <pbonzini@redhat.com> | 2012-12-17 18:20:00 +0100 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2012-12-19 08:32:39 +0100 |
commit | 1de7afc984b49af164e2619e6850b9732b173b34 (patch) | |
tree | 60cd16f527440fcfcdb81d9bea1af5d9147604c4 /qemu-timer.h | |
parent | 14cccb618508a0aa70eb9ccf366703a019a45ff0 (diff) |
misc: move include files to include/qemu/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'qemu-timer.h')
-rw-r--r-- | qemu-timer.h | 310 |
1 files changed, 0 insertions, 310 deletions
diff --git a/qemu-timer.h b/qemu-timer.h deleted file mode 100644 index da7e97cd5a..0000000000 --- a/qemu-timer.h +++ /dev/null @@ -1,310 +0,0 @@ -#ifndef QEMU_TIMER_H -#define QEMU_TIMER_H - -#include "qemu-common.h" -#include "main-loop.h" -#include "notify.h" - -#ifdef __FreeBSD__ -#include <sys/param.h> -#endif - -/* timers */ - -#define SCALE_MS 1000000 -#define SCALE_US 1000 -#define SCALE_NS 1 - -typedef struct QEMUClock QEMUClock; -typedef void QEMUTimerCB(void *opaque); - -/* The real time clock should be used only for stuff which does not - change the virtual machine state, as it is run even if the virtual - machine is stopped. The real time clock has a frequency of 1000 - Hz. */ -extern QEMUClock *rt_clock; - -/* The virtual clock is only run during the emulation. It is stopped - when the virtual machine is stopped. Virtual timers use a high - precision clock, usually cpu cycles (use ticks_per_sec). */ -extern QEMUClock *vm_clock; - -/* The host clock should be use for device models that emulate accurate - real time sources. It will continue to run when the virtual machine - is suspended, and it will reflect system time changes the host may - undergo (e.g. due to NTP). The host clock has the same precision as - the virtual clock. */ -extern QEMUClock *host_clock; - -int64_t qemu_get_clock_ns(QEMUClock *clock); -int64_t qemu_clock_has_timers(QEMUClock *clock); -int64_t qemu_clock_expired(QEMUClock *clock); -int64_t qemu_clock_deadline(QEMUClock *clock); -void qemu_clock_enable(QEMUClock *clock, bool enabled); -void qemu_clock_warp(QEMUClock *clock); - -void qemu_register_clock_reset_notifier(QEMUClock *clock, Notifier *notifier); -void qemu_unregister_clock_reset_notifier(QEMUClock *clock, - Notifier *notifier); - -QEMUTimer *qemu_new_timer(QEMUClock *clock, int scale, - QEMUTimerCB *cb, void *opaque); -void qemu_free_timer(QEMUTimer *ts); -void qemu_del_timer(QEMUTimer *ts); -void qemu_mod_timer_ns(QEMUTimer *ts, int64_t expire_time); -void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time); -bool qemu_timer_pending(QEMUTimer *ts); -bool qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time); -uint64_t qemu_timer_expire_time_ns(QEMUTimer *ts); - -void qemu_run_timers(QEMUClock *clock); -void qemu_run_all_timers(void); -void configure_alarms(char const *opt); -void init_clocks(void); -int init_timer_alarm(void); - -int64_t cpu_get_ticks(void); -void cpu_enable_ticks(void); -void cpu_disable_ticks(void); - -static inline QEMUTimer *qemu_new_timer_ns(QEMUClock *clock, QEMUTimerCB *cb, - void *opaque) -{ - return qemu_new_timer(clock, SCALE_NS, cb, opaque); -} - -static inline QEMUTimer *qemu_new_timer_ms(QEMUClock *clock, QEMUTimerCB *cb, - void *opaque) -{ - return qemu_new_timer(clock, SCALE_MS, cb, opaque); -} - -static inline int64_t qemu_get_clock_ms(QEMUClock *clock) -{ - return qemu_get_clock_ns(clock) / SCALE_MS; -} - -static inline int64_t get_ticks_per_sec(void) -{ - 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); - -/* icount */ -int64_t cpu_get_icount(void); -int64_t cpu_get_clock(void); - -/*******************************************/ -/* host CPU ticks (if available) */ - -#if defined(_ARCH_PPC) - -static inline int64_t cpu_get_real_ticks(void) -{ - int64_t retval; -#ifdef _ARCH_PPC64 - /* This reads timebase in one 64bit go and includes Cell workaround from: - http://ozlabs.org/pipermail/linuxppc-dev/2006-October/027052.html - */ - __asm__ __volatile__ ("mftb %0\n\t" - "cmpwi %0,0\n\t" - "beq- $-8" - : "=r" (retval)); -#else - /* http://ozlabs.org/pipermail/linuxppc-dev/1999-October/003889.html */ - unsigned long junk; - __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)); -#endif - return retval; -} - -#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(__hppa__) - -static inline int64_t cpu_get_real_ticks(void) -{ - int val; - asm volatile ("mfctl %%cr16, %0" : "=r"(val)); - 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__) - -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 - /* We need an %o or %g register for this. For recent enough gcc - there is an "h" constraint for that. Don't bother with that. */ - union { - uint64_t i64; - struct { - uint32_t high; - uint32_t low; - } i32; - } rval; - asm volatile("rd %%tick,%%g1; srlx %%g1,32,%0; mov %%g1,%1" - : "=r"(rval.i32.high), "=r"(rval.i32.low) : : "g1"); - return rval.i64; -#endif -} - -#elif defined(__mips__) && \ - ((defined(__mips_isa_rev) && __mips_isa_rev >= 2) || defined(__linux__)) -/* - * binutils wants to use rdhwr only on mips32r2 - * but as linux kernel emulate it, it's fine - * to use it. - * - */ -#define MIPS_RDHWR(rd, value) { \ - __asm__ __volatile__ (".set push\n\t" \ - ".set mips32r2\n\t" \ - "rdhwr %0, "rd"\n\t" \ - ".set pop" \ - : "=r" (value)); \ - } - -static inline int64_t cpu_get_real_ticks(void) -{ - /* On kernels >= 2.6.25 rdhwr <reg>, $2 and $3 are emulated */ - uint32_t count; - static uint32_t cyc_per_count = 0; - - if (!cyc_per_count) { - MIPS_RDHWR("$3", cyc_per_count); - } - - MIPS_RDHWR("$2", count); - 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 - totally wrong, but hopefully better than nothing. */ -static inline int64_t cpu_get_real_ticks (void) -{ - static int64_t ticks = 0; - return ticks++; -} -#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 |