From 92767af0e3904b4d35ed547fb514ff6cb227e678 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 30 Jan 2008 13:32:40 +0100 Subject: x86: fix sched_clock() [ andi@firstfloor.org: build fix ] Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- include/asm-x86/msr.h | 11 +++++++++++ include/asm-x86/tsc.h | 2 +- 2 files changed, 12 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-x86/msr.h b/include/asm-x86/msr.h index decfec4ab17..204a8a30fec 100644 --- a/include/asm-x86/msr.h +++ b/include/asm-x86/msr.h @@ -93,6 +93,17 @@ static inline int native_write_msr_safe(unsigned int msr, extern unsigned long long native_read_tsc(void); +static __always_inline unsigned long long __native_read_tsc(void) +{ + DECLARE_ARGS(val, low, high); + + rdtsc_barrier(); + asm volatile("rdtsc" : EAX_EDX_RET(val, low, high)); + rdtsc_barrier(); + + return EAX_EDX_VAL(val, low, high); +} + static inline unsigned long long native_read_pmc(int counter) { DECLARE_ARGS(val, low, high); diff --git a/include/asm-x86/tsc.h b/include/asm-x86/tsc.h index f51a50da35a..071e0ce5b66 100644 --- a/include/asm-x86/tsc.h +++ b/include/asm-x86/tsc.h @@ -46,7 +46,7 @@ static inline cycles_t vget_cycles(void) if (!cpu_has_tsc) return 0; #endif - return (cycles_t) native_read_tsc(); + return (cycles_t) __native_read_tsc(); } extern void tsc_init(void); -- cgit v1.2.3