diff options
Diffstat (limited to 'arch/x86/kernel/tsc_sync.c')
-rw-r--r-- | arch/x86/kernel/tsc_sync.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c index 1c0dfbca87c1..bf36328f6ef9 100644 --- a/arch/x86/kernel/tsc_sync.c +++ b/arch/x86/kernel/tsc_sync.c | |||
@@ -112,6 +112,12 @@ void __cpuinit check_tsc_sync_source(int cpu) | |||
112 | if (unsynchronized_tsc()) | 112 | if (unsynchronized_tsc()) |
113 | return; | 113 | return; |
114 | 114 | ||
115 | if (boot_cpu_has(X86_FEATURE_TSC_RELIABLE)) { | ||
116 | printk(KERN_INFO | ||
117 | "Skipping synchronization checks as TSC is reliable.\n"); | ||
118 | return; | ||
119 | } | ||
120 | |||
115 | printk(KERN_INFO "checking TSC synchronization [CPU#%d -> CPU#%d]:", | 121 | printk(KERN_INFO "checking TSC synchronization [CPU#%d -> CPU#%d]:", |
116 | smp_processor_id(), cpu); | 122 | smp_processor_id(), cpu); |
117 | 123 | ||
@@ -165,7 +171,7 @@ void __cpuinit check_tsc_sync_target(void) | |||
165 | { | 171 | { |
166 | int cpus = 2; | 172 | int cpus = 2; |
167 | 173 | ||
168 | if (unsynchronized_tsc()) | 174 | if (unsynchronized_tsc() || boot_cpu_has(X86_FEATURE_TSC_RELIABLE)) |
169 | return; | 175 | return; |
170 | 176 | ||
171 | /* | 177 | /* |