diff options
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/u-boot-x86.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/include/asm/u-boot-x86.h b/arch/x86/include/asm/u-boot-x86.h index a4a5ae0..11be5c3 100644 --- a/arch/x86/include/asm/u-boot-x86.h +++ b/arch/x86/include/asm/u-boot-x86.h @@ -68,4 +68,16 @@ int video_init(void); void board_init_f_r_trampoline(ulong) __attribute__ ((noreturn)); void board_init_f_r(void) __attribute__ ((noreturn)); +/* Read the time stamp counter */ +static inline uint64_t rdtsc(void) +{ + uint32_t high, low; + __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high)); + return (((uint64_t)high) << 32) | low; +} + +/* board/... */ +void timer_set_tsc_base(uint64_t new_base); +uint64_t timer_get_tsc(void); + #endif /* _U_BOOT_I386_H_ */ |