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Diffstat (limited to 'arch/x86/kernel/time_64.c')
-rw-r--r--arch/x86/kernel/time_64.c16
1 files changed, 2 insertions, 14 deletions
diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index c737849e2ef7..e3d49c553af2 100644
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -56,7 +56,7 @@ static irqreturn_t timer_event_interrupt(int irq, void *dev_id)
56/* calibrate_cpu is used on systems with fixed rate TSCs to determine 56/* calibrate_cpu is used on systems with fixed rate TSCs to determine
57 * processor frequency */ 57 * processor frequency */
58#define TICK_COUNT 100000000 58#define TICK_COUNT 100000000
59unsigned long __init native_calculate_cpu_khz(void) 59unsigned long __init calibrate_cpu(void)
60{ 60{
61 int tsc_start, tsc_now; 61 int tsc_start, tsc_now;
62 int i, no_ctr_free; 62 int i, no_ctr_free;
@@ -116,23 +116,11 @@ void __init hpet_time_init(void)
116 116
117void __init time_init(void) 117void __init time_init(void)
118{ 118{
119 tsc_calibrate(); 119 tsc_init();
120
121 cpu_khz = tsc_khz;
122 if (cpu_has(&boot_cpu_data, X86_FEATURE_CONSTANT_TSC) &&
123 (boot_cpu_data.x86_vendor == X86_VENDOR_AMD))
124 cpu_khz = calculate_cpu_khz();
125
126 if (unsynchronized_tsc())
127 mark_tsc_unstable("TSCs unsynchronized");
128
129 if (cpu_has(&boot_cpu_data, X86_FEATURE_RDTSCP)) 120 if (cpu_has(&boot_cpu_data, X86_FEATURE_RDTSCP))
130 vgetcpu_mode = VGETCPU_RDTSCP; 121 vgetcpu_mode = VGETCPU_RDTSCP;
131 else 122 else
132 vgetcpu_mode = VGETCPU_LSL; 123 vgetcpu_mode = VGETCPU_LSL;
133 124
134 printk(KERN_INFO "time.c: Detected %d.%03d MHz processor.\n",
135 cpu_khz / 1000, cpu_khz % 1000);
136 init_tsc_clocksource();
137 late_time_init = choose_time_init(); 125 late_time_init = choose_time_init();
138} 126}