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| author | Robert Richter <robert.richter@amd.com> | 2008-09-24 11:25:31 +0200 |
|---|---|---|
| committer | Robert Richter <robert.richter@amd.com> | 2008-09-24 11:25:31 +0200 |
| commit | f78e80209cf143be49f268c340431ae9fa3abb74 (patch) | |
| tree | 820fa64b688099dfdd93d27ba03252738ca5c7e2 /arch/x86/kernel/tsc.c | |
| parent | 4c168eaf7ea39f25a45a3d8c7eebc3fedb633a1d (diff) | |
| parent | 24342c34a022ee90839873d91396045e12ef1090 (diff) | |
Merge commit 'v2.6.27-rc5' into tip/oprofile
Conflicts:
arch/x86/oprofile/nmi_int.c
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 46af7167673..8e786b0d665 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -314,7 +314,7 @@ static int time_cpufreq_notifier(struct notifier_block *nb, unsigned long val, mark_tsc_unstable("cpufreq changes"); } - set_cyc2ns_scale(tsc_khz_ref, freq->cpu); + set_cyc2ns_scale(tsc_khz, freq->cpu); return 0; } @@ -325,6 +325,10 @@ static struct notifier_block time_cpufreq_notifier_block = { static int __init cpufreq_tsc(void) { + if (!cpu_has_tsc) + return 0; + if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC)) + return 0; cpufreq_register_notifier(&time_cpufreq_notifier_block, CPUFREQ_TRANSITION_NOTIFIER); return 0; |