diff options
Diffstat (limited to 'include/asm-x86/msr.h')
| -rw-r--r-- | include/asm-x86/msr.h | 11 |
1 files changed, 11 insertions, 0 deletions
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); |