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| author | Thomas Gleixner <tglx@linutronix.de> | 2013-04-03 12:27:29 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2013-04-03 12:27:29 +0200 |
| commit | 0ed2aef9b3bffe598045b62a31a50d912eee92d8 (patch) | |
| tree | d7dda12955c838f531727d2775d09c4e04bdf066 /arch/x86/kernel/tsc.c | |
| parent | cfea7d7e452f57682a0bb55a55e9f79c569558c2 (diff) | |
| parent | 8011657b9e63cb2e914b9a0f75233b910c1854cb (diff) | |
Merge branch 'fortglx/3.10/time' of git://git.linaro.org/people/jstultz/linux into timers/core
Diffstat (limited to 'arch/x86/kernel/tsc.c')
| -rw-r--r-- | arch/x86/kernel/tsc.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 4b9ea101fe3..098b3cfda72 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -768,7 +768,8 @@ static cycle_t read_tsc(struct clocksource *cs) static void resume_tsc(struct clocksource *cs) { - clocksource_tsc.cycle_last = 0; + if (!boot_cpu_has(X86_FEATURE_NONSTOP_TSC_S3)) + clocksource_tsc.cycle_last = 0; } static struct clocksource clocksource_tsc = { @@ -939,6 +940,9 @@ static int __init init_tsc_clocksource(void) clocksource_tsc.flags &= ~CLOCK_SOURCE_IS_CONTINUOUS; } + if (boot_cpu_has(X86_FEATURE_NONSTOP_TSC_S3)) + clocksource_tsc.flags |= CLOCK_SOURCE_SUSPEND_NONSTOP; + /* * Trust the results of the earlier calibration on systems * exporting a reliable TSC. |