projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 1da177e4 LT |
2 | #ifndef __ASM_SH_BITOPS_H |
| 3 | #define __ASM_SH_BITOPS_H | |
| 4 | ||
| 5 | #ifdef __KERNEL__ | |
| 0624517d JS |
6 | |
| 7 | #ifndef _LINUX_BITOPS_H | |
| 8 | #error only <linux/bitops.h> can be included directly | |
| 9 | #endif | |
| 10 | ||
| 1da177e4 LT |
11 | /* For __swab32 */ |
| 12 | #include <asm/byteorder.h> | |
| 603228bc | 13 | #include <asm/barrier.h> |
| 1da177e4 | 14 | |
| 1efe4ce3 SM |
15 | #ifdef CONFIG_GUSA_RB |
| 16 | #include <asm/bitops-grb.h> | |
| 0d5bbe0b PM |
17 | #elif defined(CONFIG_CPU_SH2A) |
| 18 | #include <asm-generic/bitops/atomic.h> | |
| 19 | #include <asm/bitops-op32.h> | |
| 742fd1bc PM |
20 | #elif defined(CONFIG_CPU_SH4A) |
| 21 | #include <asm/bitops-llsc.h> | |
| 2b47d54e RF |
22 | #elif defined(CONFIG_CPU_J2) && defined(CONFIG_SMP) |
| 23 | #include <asm/bitops-cas.h> | |
| 1efe4ce3 | 24 | #else |
| 16b529d1 PM |
25 | #include <asm-generic/bitops/atomic.h> |
| 26 | #include <asm-generic/bitops/non-atomic.h> | |
| 1efe4ce3 | 27 | #endif |
| 1da177e4 | 28 | |
| 63e2c803 | 29 | #ifdef CONFIG_SUPERH32 |
| e4c2cfee | 30 | static inline unsigned long ffz(unsigned long word) |
| 1da177e4 LT |
31 | { |
| 32 | unsigned long result; | |
| 33 | ||
| 34 | __asm__("1:\n\t" | |
| 35 | "shlr %1\n\t" | |
| 36 | "bt/s 1b\n\t" | |
| 37 | " add #1, %0" | |
| 38 | : "=r" (result), "=r" (word) | |
| 39 | : "0" (~0L), "1" (word) | |
| 40 | : "t"); | |
| 41 | return result; | |
| 42 | } | |
| 43 | ||
| 44 | /** | |
| 45 | * __ffs - find first bit in word. | |
| 46 | * @word: The word to search | |
| 47 | * | |
| 48 | * Undefined if no bit exists, so code should check against 0 first. | |
| 49 | */ | |
| e4c2cfee | 50 | static inline unsigned long __ffs(unsigned long word) |
| 1da177e4 LT |
51 | { |
| 52 | unsigned long result; | |
| 53 | ||
| 54 | __asm__("1:\n\t" | |
| 55 | "shlr %1\n\t" | |
| 56 | "bf/s 1b\n\t" | |
| 57 | " add #1, %0" | |
| 58 | : "=r" (result), "=r" (word) | |
| 59 | : "0" (~0L), "1" (word) | |
| 60 | : "t"); | |
| 61 | return result; | |
| 62 | } | |
| 63e2c803 PM |
63 | #else |
| 64 | static inline unsigned long ffz(unsigned long word) | |
| 65 | { | |
| 66 | unsigned long result, __d2, __d3; | |
| 67 | ||
| 68 | __asm__("gettr tr0, %2\n\t" | |
| 69 | "pta $+32, tr0\n\t" | |
| 70 | "andi %1, 1, %3\n\t" | |
| 71 | "beq %3, r63, tr0\n\t" | |
| 72 | "pta $+4, tr0\n" | |
| 73 | "0:\n\t" | |
| 74 | "shlri.l %1, 1, %1\n\t" | |
| 75 | "addi %0, 1, %0\n\t" | |
| 76 | "andi %1, 1, %3\n\t" | |
| 77 | "beqi %3, 1, tr0\n" | |
| 78 | "1:\n\t" | |
| 79 | "ptabs %2, tr0\n\t" | |
| 80 | : "=r" (result), "=r" (word), "=r" (__d2), "=r" (__d3) | |
| 81 | : "0" (0L), "1" (word)); | |
| 82 | ||
| 83 | return result; | |
| 84 | } | |
| 85 | ||
| 86 | #include <asm-generic/bitops/__ffs.h> | |
| 87 | #endif | |
| 1da177e4 | 88 | |
| e2268c71 AM |
89 | #include <asm-generic/bitops/find.h> |
| 90 | #include <asm-generic/bitops/ffs.h> | |
| 91 | #include <asm-generic/bitops/hweight.h> | |
| 26333576 | 92 | #include <asm-generic/bitops/lock.h> |
| e2268c71 | 93 | #include <asm-generic/bitops/sched.h> |
| 861b5ae7 | 94 | #include <asm-generic/bitops/le.h> |
| e2268c71 | 95 | #include <asm-generic/bitops/ext2-atomic.h> |
| e2268c71 | 96 | #include <asm-generic/bitops/fls.h> |
| 56a6b1eb | 97 | #include <asm-generic/bitops/__fls.h> |
| e2268c71 | 98 | #include <asm-generic/bitops/fls64.h> |
| 1da177e4 LT |
99 | |
| 100 | #endif /* __KERNEL__ */ | |
| 101 | ||
| 102 | #endif /* __ASM_SH_BITOPS_H */ |