| 1 | #ifndef ARCH_X86_H |
| 2 | #define ARCH_X86_H |
| 3 | |
| 4 | static inline void do_cpuid(unsigned int *eax, unsigned int *ebx, |
| 5 | unsigned int *ecx, unsigned int *edx) |
| 6 | { |
| 7 | asm volatile("xchgl %%ebx, %1\ncpuid\nxchgl %%ebx, %1" |
| 8 | : "=a" (*eax), "=r" (*ebx), "=c" (*ecx), "=d" (*edx) |
| 9 | : "0" (*eax) |
| 10 | : "memory"); |
| 11 | } |
| 12 | |
| 13 | #include "arch-x86-common.h" |
| 14 | |
| 15 | #define FIO_ARCH (arch_x86) |
| 16 | |
| 17 | #define FIO_HUGE_PAGE 4194304 |
| 18 | |
| 19 | #define nop __asm__ __volatile__("rep;nop": : :"memory") |
| 20 | #define read_barrier() __asm__ __volatile__("": : :"memory") |
| 21 | #define write_barrier() __asm__ __volatile__("": : :"memory") |
| 22 | |
| 23 | static inline unsigned long arch_ffz(unsigned long bitmask) |
| 24 | { |
| 25 | __asm__("bsfl %1,%0" :"=r" (bitmask) :"r" (~bitmask)); |
| 26 | return bitmask; |
| 27 | } |
| 28 | |
| 29 | static inline unsigned long long get_cpu_clock(void) |
| 30 | { |
| 31 | unsigned long long ret; |
| 32 | |
| 33 | __asm__ __volatile__("rdtsc" : "=A" (ret)); |
| 34 | return ret; |
| 35 | } |
| 36 | |
| 37 | #define ARCH_HAVE_FFZ |
| 38 | #define ARCH_HAVE_CPU_CLOCK |
| 39 | |
| 40 | #endif |