Commit | Line | Data |
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3782a8cd JA |
1 | #ifndef ARCH_PPC_H |
2 | #define ARCH_PPH_H | |
3 | ||
5fe27a7b | 4 | #define ARCH (arch_ppc) |
6b2a251b | 5 | |
3782a8cd JA |
6 | #ifndef __NR_ioprio_set |
7 | #define __NR_ioprio_set 273 | |
8 | #define __NR_ioprio_get 274 | |
9 | #endif | |
10 | ||
11 | #ifndef __NR_fadvise64 | |
12 | #define __NR_fadvise64 233 | |
13 | #endif | |
14 | ||
15 | #define nop do { } while (0) | |
16 | ||
17 | static inline int __ilog2(unsigned long bitmask) | |
18 | { | |
19 | int lz; | |
20 | ||
21 | asm ("cntlzw %0,%1" : "=r" (lz) : "r" (bitmask)); | |
22 | return 31 - lz; | |
23 | } | |
24 | ||
25 | static inline int ffz(unsigned long bitmask) | |
26 | { | |
27 | if ((bitmask = ~bitmask) == 0) | |
28 | return 32; | |
29 | return __ilog2(bitmask & -bitmask); | |
30 | } | |
31 | ||
32 | #endif |