fio: fix s390 time accounting
[fio.git] / arch / arch-s390.h
... / ...
CommitLineData
1#ifndef ARCH_S390_H
2#define ARCH_S390_H
3
4#define FIO_ARCH (arch_s390)
5
6#ifndef __NR_ioprio_set
7#define __NR_ioprio_set 282
8#define __NR_ioprio_get 283
9#endif
10
11#ifndef __NR_fadvise64
12#define __NR_fadvise64 253
13#endif
14
15#ifndef __NR_sys_splice
16#define __NR_sys_splice 306
17#define __NR_sys_tee 308
18#define __NR_sys_vmsplice 309
19#endif
20
21#define nop asm volatile ("diag 0,0,68" : : : "memory")
22#define read_barrier() asm volatile("bcr 15,0" : : : "memory")
23#define write_barrier() asm volatile("bcr 15,0" : : : "memory")
24
25/*
26 * Fio needs monotonic (never lower), but not strict monotonic (never the same)
27 * so store clock fast is enough
28 */
29static inline unsigned long long get_cpu_clock(void)
30{
31 unsigned long long clk;
32
33 __asm__ __volatile__("stckf %0" : "=Q" (clk) : : "cc");
34 return clk>>12;
35}
36
37#define ARCH_CPU_CLOCK_CYCLES_PER_USEC 1
38#define ARCH_HAVE_CPU_CLOCK
39
40#define ARCH_HAVE_INIT
41extern int tsc_reliable;
42static inline int arch_init(char *envp[])
43{
44 tsc_reliable = 1;
45 return 0;
46}
47
48#endif