projects / mirror_ubuntu-hirsute-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef __ASM_SH_BITOPS_H |
| 2 | #define __ASM_SH_BITOPS_H | |
| 3 | ||
| 4 | #ifdef __KERNEL__ | |
| 0624517d JS |
5 | |
| 6 | #ifndef _LINUX_BITOPS_H | |
| 7 | #error only <linux/bitops.h> can be included directly | |
| 8 | #endif | |
| 9 | ||
| 1da177e4 LT |
10 | #include <asm/system.h> |
| 11 | /* For __swab32 */ | |
| 12 | #include <asm/byteorder.h> | |
| 13 | ||
| 1efe4ce3 SM |
14 | #ifdef CONFIG_GUSA_RB |
| 15 | #include <asm/bitops-grb.h> | |
| 0d5bbe0b PM |
16 | #elif defined(CONFIG_CPU_SH2A) |
| 17 | #include <asm-generic/bitops/atomic.h> | |
| 18 | #include <asm/bitops-op32.h> | |
| 742fd1bc PM |
19 | #elif defined(CONFIG_CPU_SH4A) |
| 20 | #include <asm/bitops-llsc.h> | |
| 1efe4ce3 | 21 | #else |
| 16b529d1 PM |
22 | #include <asm-generic/bitops/atomic.h> |
| 23 | #include <asm-generic/bitops/non-atomic.h> | |
| 1efe4ce3 | 24 | #endif |
| 1da177e4 | 25 | |
| 1da177e4 LT |
26 | /* |
| 27 | * clear_bit() doesn't provide any barrier for the compiler. | |
| 28 | */ | |
| 1c8db713 PM |
29 | #define smp_mb__before_clear_bit() smp_mb() |
| 30 | #define smp_mb__after_clear_bit() smp_mb() | |
| 1da177e4 | 31 | |
| 63e2c803 | 32 | #ifdef CONFIG_SUPERH32 |
| e4c2cfee | 33 | static inline unsigned long ffz(unsigned long word) |
| 1da177e4 LT |
34 | { |
| 35 | unsigned long result; | |
| 36 | ||
| 37 | __asm__("1:\n\t" | |
| 38 | "shlr %1\n\t" | |
| 39 | "bt/s 1b\n\t" | |
| 40 | " add #1, %0" | |
| 41 | : "=r" (result), "=r" (word) | |
| 42 | : "0" (~0L), "1" (word) | |
| 43 | : "t"); | |
| 44 | return result; | |
| 45 | } | |
| 46 | ||
| 47 | /** | |
| 48 | * __ffs - find first bit in word. | |
| 49 | * @word: The word to search | |
| 50 | * | |
| 51 | * Undefined if no bit exists, so code should check against 0 first. | |
| 52 | */ | |
| e4c2cfee | 53 | static inline unsigned long __ffs(unsigned long word) |
| 1da177e4 LT |
54 | { |
| 55 | unsigned long result; | |
| 56 | ||
| 57 | __asm__("1:\n\t" | |
| 58 | "shlr %1\n\t" | |
| 59 | "bf/s 1b\n\t" | |
| 60 | " add #1, %0" | |
| 61 | : "=r" (result), "=r" (word) | |
| 62 | : "0" (~0L), "1" (word) | |
| 63 | : "t"); | |
| 64 | return result; | |
| 65 | } | |
| 63e2c803 PM |
66 | #else |
| 67 | static inline unsigned long ffz(unsigned long word) | |
| 68 | { | |
| 69 | unsigned long result, __d2, __d3; | |
| 70 | ||
| 71 | __asm__("gettr tr0, %2\n\t" | |
| 72 | "pta $+32, tr0\n\t" | |
| 73 | "andi %1, 1, %3\n\t" | |
| 74 | "beq %3, r63, tr0\n\t" | |
| 75 | "pta $+4, tr0\n" | |
| 76 | "0:\n\t" | |
| 77 | "shlri.l %1, 1, %1\n\t" | |
| 78 | "addi %0, 1, %0\n\t" | |
| 79 | "andi %1, 1, %3\n\t" | |
| 80 | "beqi %3, 1, tr0\n" | |
| 81 | "1:\n\t" | |
| 82 | "ptabs %2, tr0\n\t" | |
| 83 | : "=r" (result), "=r" (word), "=r" (__d2), "=r" (__d3) | |
| 84 | : "0" (0L), "1" (word)); | |
| 85 | ||
| 86 | return result; | |
| 87 | } | |
| 88 | ||
| 89 | #include <asm-generic/bitops/__ffs.h> | |
| 90 | #endif | |
| 1da177e4 | 91 | |
| e2268c71 AM |
92 | #include <asm-generic/bitops/find.h> |
| 93 | #include <asm-generic/bitops/ffs.h> | |
| 94 | #include <asm-generic/bitops/hweight.h> | |
| 26333576 | 95 | #include <asm-generic/bitops/lock.h> |
| e2268c71 AM |
96 | #include <asm-generic/bitops/sched.h> |
| 97 | #include <asm-generic/bitops/ext2-non-atomic.h> | |
| 98 | #include <asm-generic/bitops/ext2-atomic.h> | |
| 99 | #include <asm-generic/bitops/minix.h> | |
| 100 | #include <asm-generic/bitops/fls.h> | |
| 56a6b1eb | 101 | #include <asm-generic/bitops/__fls.h> |
| e2268c71 | 102 | #include <asm-generic/bitops/fls64.h> |
| 1da177e4 LT |
103 | |
| 104 | #endif /* __KERNEL__ */ | |
| 105 | ||
| 106 | #endif /* __ASM_SH_BITOPS_H */ |