1 #ifndef ARCH_X86_H
2 #define ARCH_X86_H
3
do_cpuid(unsigned int * eax,unsigned int * ebx,unsigned int * ecx,unsigned int * edx)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
arch_ffz(unsigned long bitmask)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
get_cpu_clock(void)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