4 #define FIO_ARCH (arch_s390)
6 #ifndef __NR_ioprio_set
7 #define __NR_ioprio_set 282
8 #define __NR_ioprio_get 283
11 #ifndef __NR_fadvise64
12 #define __NR_fadvise64 253
15 #ifndef __NR_sys_splice
16 #define __NR_sys_splice 306
17 #define __NR_sys_tee 308
18 #define __NR_sys_vmsplice 309
22 #define __NR_preadv2 376
25 #define __NR_pwritev2 377
28 #define nop asm volatile("nop" : : : "memory")
29 #define read_barrier() asm volatile("bcr 15,0" : : : "memory")
30 #define write_barrier() asm volatile("bcr 15,0" : : : "memory")
32 static inline unsigned long long get_cpu_clock(void)
34 unsigned long long clk;
36 #ifdef CONFIG_S390_Z196_FACILITIES
38 * Fio needs monotonic (never lower), but not strict monotonic (never
39 * the same) so store clock fast is enough.
41 __asm__ __volatile__("stckf %0" : "=Q" (clk) : : "cc");
43 __asm__ __volatile__("stck %0" : "=Q" (clk) : : "cc");
48 #define ARCH_CPU_CLOCK_CYCLES_PER_USEC 1
49 #define ARCH_HAVE_CPU_CLOCK
50 #undef ARCH_CPU_CLOCK_WRAPS
52 #define ARCH_HAVE_INIT
53 extern int tsc_reliable;
54 static inline int arch_init(char *envp[])