Add generic arch include header
[fio.git] / arch / arch-ia64.h
1 #ifndef ARCH_IA64_H
2 #define ARCH_IA64_H
3
4 #define ARCH    (arch_ia64)
5
6 #ifndef __NR_ioprio_set
7 #define __NR_ioprio_set         1274
8 #define __NR_ioprio_get         1275
9 #endif
10
11 #ifndef __NR_fadvise64
12 #define __NR_fadvise64          1234
13 #endif
14
15 #ifndef __NR_sys_splice
16 #define __NR_sys_splice         1297
17 #define __NR_sys_tee            1301
18 #define __NR_sys_vmsplice       1302
19 #endif
20
21 #define nop             asm volatile ("hint @pause" ::: "memory");
22 #define read_barrier()  asm volatile ("mf" ::: "memory")
23 #define write_barrier() asm volatile ("mf" ::: "memory")
24
25 #define ia64_popcnt(x)                                                  \
26 ({                                                                      \
27         unsigned long ia64_intri_res;                                   \
28         asm ("popcnt %0=%1" : "=r" (ia64_intri_res) : "r" (x));         \
29         ia64_intri_res;                                                 \
30 })
31
32 static inline unsigned long arch_ffz(unsigned long bitmask)
33 {
34         return ia64_popcnt(bitmask & (~bitmask - 1));
35 }
36 #define ARCH_HAVE_FFZ
37
38 #endif