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_i386) 16 17 #ifndef __NR_ioprio_set 18 #define __NR_ioprio_set 289 19 #define __NR_ioprio_get 290 20 #endif 21 22 #ifndef __NR_fadvise64 23 #define __NR_fadvise64 250 24 #endif 25 26 #ifndef __NR_sys_splice 27 #define __NR_sys_splice 313 28 #define __NR_sys_tee 315 29 #define __NR_sys_vmsplice 316 30 #endif 31 32 #define FIO_HUGE_PAGE 4194304 33 34 #define nop __asm__ __volatile__("rep;nop": : :"memory") 35 #define read_barrier() __asm__ __volatile__("": : :"memory") 36 #define write_barrier() __asm__ __volatile__("": : :"memory") 37 38 static inline unsigned long arch_ffz(unsigned long bitmask) 39 { 40 __asm__("bsfl %1,%0" :"=r" (bitmask) :"r" (~bitmask)); 41 return bitmask; 42 } 43 44 static inline unsigned long long get_cpu_clock(void) 45 { 46 unsigned long long ret; 47 48 __asm__ __volatile__("rdtsc" : "=A" (ret)); 49 return ret; 50 } 51 52 #define ARCH_HAVE_FFZ 53 #define ARCH_HAVE_CPU_CLOCK 54 55 #endif 56
