diff options
Diffstat (limited to 'arch/i386/kernel/timers/timer_tsc.c')
| -rw-r--r-- | arch/i386/kernel/timers/timer_tsc.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/i386/kernel/timers/timer_tsc.c b/arch/i386/kernel/timers/timer_tsc.c index 8f4e4d5bc56..6dd470cc9f7 100644 --- a/arch/i386/kernel/timers/timer_tsc.c +++ b/arch/i386/kernel/timers/timer_tsc.c @@ -543,6 +543,19 @@ static int __init init_tsc(char* override) return -ENODEV; } +static int tsc_resume(void) +{ + write_seqlock(&monotonic_lock); + /* Assume this is the last mark offset time */ + rdtsc(last_tsc_low, last_tsc_high); +#ifdef CONFIG_HPET_TIMER + if (is_hpet_enabled() && hpet_use_timer) + hpet_last = hpet_readl(HPET_COUNTER); +#endif + write_sequnlock(&monotonic_lock); + return 0; +} + #ifndef CONFIG_X86_TSC /* disable flag for tsc. Takes effect by clearing the TSC cpu flag * in cpu/common.c */ @@ -573,6 +586,7 @@ static struct timer_opts timer_tsc = { .monotonic_clock = monotonic_clock_tsc, .delay = delay_tsc, .read_timer = read_timer_tsc, + .resume = tsc_resume, }; struct init_timer_opts __initdata timer_tsc_init = { |