diff options
Diffstat (limited to 'arch/x86_64/lib/delay.c')
| -rw-r--r-- | arch/x86_64/lib/delay.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/x86_64/lib/delay.c b/arch/x86_64/lib/delay.c index 6e2d66472eb1..841bd738a189 100644 --- a/arch/x86_64/lib/delay.c +++ b/arch/x86_64/lib/delay.c @@ -12,12 +12,17 @@ #include <linux/sched.h> #include <linux/delay.h> #include <asm/delay.h> +#include <asm/msr.h> #ifdef CONFIG_SMP #include <asm/smp.h> #endif -int x86_udelay_tsc = 0; /* Delay via TSC */ +int read_current_timer(unsigned long *timer_value) +{ + rdtscll(*timer_value); + return 0; +} void __delay(unsigned long loops) { @@ -34,7 +39,7 @@ void __delay(unsigned long loops) inline void __const_udelay(unsigned long xloops) { - __delay(((xloops * cpu_data[_smp_processor_id()].loops_per_jiffy) >> 32) * HZ); + __delay(((xloops * cpu_data[raw_smp_processor_id()].loops_per_jiffy) >> 32) * HZ); } void __udelay(unsigned long usecs) |