diff options
Diffstat (limited to 'arch/x86_64/kernel/time.c')
-rw-r--r-- | arch/x86_64/kernel/time.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c index 3c58c30506a1..3080f84bf7b7 100644 --- a/arch/x86_64/kernel/time.c +++ b/arch/x86_64/kernel/time.c | |||
@@ -48,6 +48,8 @@ static void cpufreq_delayed_get(void); | |||
48 | extern void i8254_timer_resume(void); | 48 | extern void i8254_timer_resume(void); |
49 | extern int using_apic_timer; | 49 | extern int using_apic_timer; |
50 | 50 | ||
51 | static char *time_init_gtod(void); | ||
52 | |||
51 | DEFINE_SPINLOCK(rtc_lock); | 53 | DEFINE_SPINLOCK(rtc_lock); |
52 | DEFINE_SPINLOCK(i8253_lock); | 54 | DEFINE_SPINLOCK(i8253_lock); |
53 | 55 | ||
@@ -901,6 +903,7 @@ static struct irqaction irq0 = { | |||
901 | void __init time_init(void) | 903 | void __init time_init(void) |
902 | { | 904 | { |
903 | char *timename; | 905 | char *timename; |
906 | char *gtod; | ||
904 | 907 | ||
905 | #ifdef HPET_HACK_ENABLE_DANGEROUS | 908 | #ifdef HPET_HACK_ENABLE_DANGEROUS |
906 | if (!vxtime.hpet_address) { | 909 | if (!vxtime.hpet_address) { |
@@ -945,21 +948,19 @@ void __init time_init(void) | |||
945 | timename = "PIT"; | 948 | timename = "PIT"; |
946 | } | 949 | } |
947 | 950 | ||
948 | printk(KERN_INFO "time.c: Using %ld.%06ld MHz %s timer.\n", | 951 | vxtime.mode = VXTIME_TSC; |
949 | vxtime_hz / 1000000, vxtime_hz % 1000000, timename); | 952 | gtod = time_init_gtod(); |
953 | |||
954 | printk(KERN_INFO "time.c: Using %ld.%06ld MHz WALL %s GTOD %s timer.\n", | ||
955 | vxtime_hz / 1000000, vxtime_hz % 1000000, timename, gtod); | ||
950 | printk(KERN_INFO "time.c: Detected %d.%03d MHz processor.\n", | 956 | printk(KERN_INFO "time.c: Detected %d.%03d MHz processor.\n", |
951 | cpu_khz / 1000, cpu_khz % 1000); | 957 | cpu_khz / 1000, cpu_khz % 1000); |
952 | vxtime.mode = VXTIME_TSC; | ||
953 | vxtime.quot = (1000000L << 32) / vxtime_hz; | 958 | vxtime.quot = (1000000L << 32) / vxtime_hz; |
954 | vxtime.tsc_quot = (1000L << 32) / cpu_khz; | 959 | vxtime.tsc_quot = (1000L << 32) / cpu_khz; |
955 | vxtime.last_tsc = get_cycles_sync(); | 960 | vxtime.last_tsc = get_cycles_sync(); |
956 | setup_irq(0, &irq0); | 961 | setup_irq(0, &irq0); |
957 | 962 | ||
958 | set_cyc2ns_scale(cpu_khz); | 963 | set_cyc2ns_scale(cpu_khz); |
959 | |||
960 | #ifndef CONFIG_SMP | ||
961 | time_init_gtod(); | ||
962 | #endif | ||
963 | } | 964 | } |
964 | 965 | ||
965 | /* | 966 | /* |
@@ -981,9 +982,9 @@ __cpuinit int unsynchronized_tsc(void) | |||
981 | } | 982 | } |
982 | 983 | ||
983 | /* | 984 | /* |
984 | * Decide after all CPUs are booted what mode gettimeofday should use. | 985 | * Decide what mode gettimeofday should use. |
985 | */ | 986 | */ |
986 | void __init time_init_gtod(void) | 987 | __init static char *time_init_gtod(void) |
987 | { | 988 | { |
988 | char *timetype; | 989 | char *timetype; |
989 | 990 | ||
@@ -1011,8 +1012,7 @@ void __init time_init_gtod(void) | |||
1011 | timetype = hpet_use_timer ? "HPET/TSC" : "PIT/TSC"; | 1012 | timetype = hpet_use_timer ? "HPET/TSC" : "PIT/TSC"; |
1012 | vxtime.mode = VXTIME_TSC; | 1013 | vxtime.mode = VXTIME_TSC; |
1013 | } | 1014 | } |
1014 | 1015 | return timetype; | |
1015 | printk(KERN_INFO "time.c: Using %s based timekeeping.\n", timetype); | ||
1016 | } | 1016 | } |
1017 | 1017 | ||
1018 | __setup("report_lost_ticks", time_setup); | 1018 | __setup("report_lost_ticks", time_setup); |
@@ -1327,8 +1327,7 @@ static int __init nohpet_setup(char *s) | |||
1327 | 1327 | ||
1328 | __setup("nohpet", nohpet_setup); | 1328 | __setup("nohpet", nohpet_setup); |
1329 | 1329 | ||
1330 | 1330 | int __init notsc_setup(char *s) | |
1331 | static int __init notsc_setup(char *s) | ||
1332 | { | 1331 | { |
1333 | notsc = 1; | 1332 | notsc = 1; |
1334 | return 0; | 1333 | return 0; |