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 8f4e4d5bc560..6dd470cc9f72 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 = {