/* calibrate_cpu is used on systems with fixed rate TSCs to determine
* processor frequency */
#define TICK_COUNT 100000000
-unsigned long __init native_calculate_cpu_khz(void)
+unsigned long __init calibrate_cpu(void)
{
int tsc_start, tsc_now;
int i, no_ctr_free;
reserve_evntsel_nmi(MSR_K7_EVNTSEL0 + i);
}
local_irq_save(flags);
- /* start meauring cycles, incrementing from 0 */
+ /* start measuring cycles, incrementing from 0 */
wrmsrl(MSR_K7_PERFCTR0 + i, 0);
wrmsrl(MSR_K7_EVNTSEL0 + i, 1 << 22 | 3 << 16 | 0x76);
rdtscl(tsc_start);
void __init time_init(void)
{
- tsc_calibrate();
-
- cpu_khz = tsc_khz;
- if (cpu_has(&boot_cpu_data, X86_FEATURE_CONSTANT_TSC) &&
- (boot_cpu_data.x86_vendor == X86_VENDOR_AMD))
- cpu_khz = calculate_cpu_khz();
-
- if (unsynchronized_tsc())
- mark_tsc_unstable("TSCs unsynchronized");
-
+ tsc_init();
if (cpu_has(&boot_cpu_data, X86_FEATURE_RDTSCP))
vgetcpu_mode = VGETCPU_RDTSCP;
else
vgetcpu_mode = VGETCPU_LSL;
- printk(KERN_INFO "time.c: Detected %d.%03d MHz processor.\n",
- cpu_khz / 1000, cpu_khz % 1000);
- init_tsc_clocksource();
late_time_init = choose_time_init();
}