1 #ifndef ARCH_X86_64_h
2 #define ARCH_X86_64_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("cpuid"
8 : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx)
9 : "0" (*eax), "2" (*ecx)
10 : "memory");
11 }
12
13 #include "arch-x86-common.h"
14
15 #define FIO_ARCH (arch_x86_64)
16
17 #ifndef __NR_ioprio_set
18 #define __NR_ioprio_set 251
19 #define __NR_ioprio_get 252
20 #endif
21
22 #ifndef __NR_fadvise64
23 #define __NR_fadvise64 221
24 #endif
25
26 #ifndef __NR_sys_splice
27 #define __NR_sys_splice 275
28 #define __NR_sys_tee 276
29 #define __NR_sys_vmsplice 278
30 #endif
31
32 #ifndef __NR_shmget
33 #define __NR_shmget 29
34 #define __NR_shmat 30
35 #define __NR_shmctl 31
36 #define __NR_shmdt 67
37 #endif
38
39 #define FIO_HUGE_PAGE 2097152
40
41 #define nop __asm__ __volatile__("rep;nop": : :"memory")
42 #define read_barrier() __asm__ __volatile__("lfence":::"memory")
43 #define write_barrier() __asm__ __volatile__("sfence":::"memory")
44
arch_ffz(unsigned long bitmask)45 static inline unsigned long arch_ffz(unsigned long bitmask)
46 {
47 __asm__("bsf %1,%0" :"=r" (bitmask) :"r" (~bitmask));
48 return bitmask;
49 }
50
get_cpu_clock(void)51 static inline unsigned long long get_cpu_clock(void)
52 {
53 unsigned int lo, hi;
54
55 __asm__ __volatile__("rdtsc" : "=a" (lo), "=d" (hi));
56 return ((unsigned long long) hi << 32ULL) | lo;
57 }
58
59 #define ARCH_HAVE_FFZ
60 #define ARCH_HAVE_SSE4_2
61 #define ARCH_HAVE_CPU_CLOCK
62
63 #endif
64