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ebac4655 JA |
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 | #define nop asm volatile ("hint @pause" ::: "memory"); | |
16 | ||
17 | #define ia64_popcnt(x) \ | |
18 | ({ \ | |
19 | unsigned long ia64_intri_res; \ | |
20 | asm ("popcnt %0=%1" : "=r" (ia64_intri_res) : "r" (x)); \ | |
21 | ia64_intri_res; \ | |
22 | }) | |
23 | ||
24 | static inline unsigned long ffz(unsigned long bitmask) | |
25 | { | |
26 | return ia64_popcnt(bitmask & (~bitmask - 1)); | |
27 | } | |
28 | ||
29 | #endif |