diff options
| -rw-r--r-- | arch/i386/kernel/paravirt.c | 1 | ||||
| -rw-r--r-- | arch/i386/kernel/tsc.c | 2 | ||||
| -rw-r--r-- | arch/i386/kernel/vmi.c | 1 | ||||
| -rw-r--r-- | arch/i386/kernel/vmitime.c | 10 | ||||
| -rw-r--r-- | include/asm-i386/paravirt.h | 2 | ||||
| -rw-r--r-- | include/asm-i386/timer.h | 2 | ||||
| -rw-r--r-- | include/asm-i386/vmi_time.h | 1 |
7 files changed, 17 insertions, 2 deletions
diff --git a/arch/i386/kernel/paravirt.c b/arch/i386/kernel/paravirt.c index 31bbe70..8352394 100644 --- a/arch/i386/kernel/paravirt.c +++ b/arch/i386/kernel/paravirt.c @@ -522,6 +522,7 @@ struct paravirt_ops paravirt_ops = { .read_tsc = native_read_tsc, .read_pmc = native_read_pmc, .get_scheduled_cycles = native_read_tsc, + .get_cpu_khz = native_calculate_cpu_khz, .load_tr_desc = native_load_tr_desc, .set_ldt = native_set_ldt, .load_gdt = native_load_gdt, diff --git a/arch/i386/kernel/tsc.c b/arch/i386/kernel/tsc.c index c9c9d54..59222a0 100644 --- a/arch/i386/kernel/tsc.c +++ b/arch/i386/kernel/tsc.c @@ -117,7 +117,7 @@ unsigned long long sched_clock(void) return cycles_2_ns(this_offset); } -static unsigned long calculate_cpu_khz(void) +unsigned long native_calculate_cpu_khz(void) { unsigned long long start, end; unsigned long count; diff --git a/arch/i386/kernel/vmi.c b/arch/i386/kernel/vmi.c index 556b9a6..acdfe69 100644 --- a/arch/i386/kernel/vmi.c +++ b/arch/i386/kernel/vmi.c @@ -874,6 +874,7 @@ static inline int __init activate_vmi(void) paravirt_ops.setup_secondary_clock = vmi_timer_setup_secondary_alarm; #endif paravirt_ops.get_scheduled_cycles = vmi_get_sched_cycles; + paravirt_ops.get_cpu_khz = vmi_cpu_khz; } if (!disable_noidle) para_fill(safe_halt, Halt); diff --git a/arch/i386/kernel/vmitime.c b/arch/i386/kernel/vmitime.c index f2aa8fa..4bb218e 100644 --- a/arch/i386/kernel/vmitime.c +++ b/arch/i386/kernel/vmitime.c @@ -177,6 +177,15 @@ unsigned long long vmi_get_sched_cycles(void) return read_available_cycles(); } +unsigned long vmi_cpu_khz(void) +{ + unsigned long long khz; + + khz = vmi_timer_ops.get_cycle_frequency(); + (void)do_div(khz, 1000); + return khz; +} + void __init vmi_time_init(void) { unsigned long long cycles_per_sec, cycles_per_msec; @@ -206,7 +215,6 @@ void __init vmi_time_init(void) (void)do_div(cycles_per_alarm, alarm_hz); cycles_per_msec = cycles_per_sec; (void)do_div(cycles_per_msec, 1000); - cpu_khz = cycles_per_msec; printk(KERN_WARNING "VMI timer cycles/sec = %llu ; cycles/jiffy = %llu ;" "cycles/alarm = %llu\n", cycles_per_sec, cycles_per_jiffy, diff --git a/include/asm-i386/paravirt.h b/include/asm-i386/paravirt.h index a132302..a35c814 100644 --- a/include/asm-i386/paravirt.h +++ b/include/asm-i386/paravirt.h @@ -95,6 +95,7 @@ struct paravirt_ops u64 (*read_tsc)(void); u64 (*read_pmc)(void); u64 (*get_scheduled_cycles)(void); + unsigned long (*get_cpu_khz)(void); void (*load_tr_desc)(void); void (*load_gdt)(const struct Xgt_desc_struct *); @@ -275,6 +276,7 @@ static inline void halt(void) #define rdtscll(val) (val = paravirt_ops.read_tsc()) #define get_scheduled_cycles(val) (val = paravirt_ops.get_scheduled_cycles()) +#define calculate_cpu_khz() (paravirt_ops.get_cpu_khz()) #define write_tsc(val1,val2) wrmsr(0x10, val1, val2) diff --git a/include/asm-i386/timer.h b/include/asm-i386/timer.h index d1f7b4f..12dd67b 100644 --- a/include/asm-i386/timer.h +++ b/include/asm-i386/timer.h @@ -7,6 +7,7 @@ void setup_pit_timer(void); unsigned long long native_sched_clock(void); +unsigned long native_calculate_cpu_khz(void); /* Modifiers for buggy PIT handling */ extern int pit_latch_buggy; @@ -17,6 +18,7 @@ extern int recalibrate_cpu_khz(void); #ifndef CONFIG_PARAVIRT #define get_scheduled_cycles(val) rdtscll(val) +#define calculate_cpu_khz() native_calculate_cpu_khz() #endif #endif diff --git a/include/asm-i386/vmi_time.h b/include/asm-i386/vmi_time.h index f59c35d..1f971eb 100644 --- a/include/asm-i386/vmi_time.h +++ b/include/asm-i386/vmi_time.h @@ -50,6 +50,7 @@ extern void __init vmi_time_init(void); extern unsigned long vmi_get_wallclock(void); extern int vmi_set_wallclock(unsigned long now); extern unsigned long long vmi_get_sched_cycles(void); +extern unsigned long vmi_cpu_khz(void); #ifdef CONFIG_X86_LOCAL_APIC extern void __init vmi_timer_setup_boot_alarm(void); |