| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef _ASM_GENERIC_BITOPS_LE_H_ |
| 3 | #define _ASM_GENERIC_BITOPS_LE_H_ |
| 4 | |
| 5 | #include <asm/types.h> |
| 6 | #include <asm/byteorder.h> |
| 7 | |
| 8 | #if defined(__LITTLE_ENDIAN) |
| 9 | |
| 10 | #define BITOP_LE_SWIZZLE 0 |
| 11 | |
| 12 | static inline unsigned long find_next_zero_bit_le(const void *addr, |
| 13 | unsigned long size, unsigned long offset) |
| 14 | { |
| 15 | return find_next_zero_bit(addr, size, offset); |
| 16 | } |
| 17 | |
| 18 | static inline unsigned long find_next_bit_le(const void *addr, |
| 19 | unsigned long size, unsigned long offset) |
| 20 | { |
| 21 | return find_next_bit(addr, size, offset); |
| 22 | } |
| 23 | |
| 24 | static inline unsigned long find_first_zero_bit_le(const void *addr, |
| 25 | unsigned long size) |
| 26 | { |
| 27 | return find_first_zero_bit(addr, size); |
| 28 | } |
| 29 | |
| 30 | #elif defined(__BIG_ENDIAN) |
| 31 | |
| 32 | #define BITOP_LE_SWIZZLE ((BITS_PER_LONG-1) & ~0x7) |
| 33 | |
| 34 | #ifndef find_next_zero_bit_le |
| 35 | extern unsigned long find_next_zero_bit_le(const void *addr, |
| 36 | unsigned long size, unsigned long offset); |
| 37 | #endif |
| 38 | |
| 39 | #ifndef find_next_bit_le |
| 40 | extern unsigned long find_next_bit_le(const void *addr, |
| 41 | unsigned long size, unsigned long offset); |
| 42 | #endif |
| 43 | |
| 44 | #ifndef find_first_zero_bit_le |
| 45 | #define find_first_zero_bit_le(addr, size) \ |
| 46 | find_next_zero_bit_le((addr), (size), 0) |
| 47 | #endif |
| 48 | |
| 49 | #else |
| 50 | #error "Please fix <asm/byteorder.h>" |
| 51 | #endif |
| 52 | |
| 53 | static inline int test_bit_le(int nr, const void *addr) |
| 54 | { |
| 55 | return test_bit(nr ^ BITOP_LE_SWIZZLE, addr); |
| 56 | } |
| 57 | |
| 58 | static inline void set_bit_le(int nr, void *addr) |
| 59 | { |
| 60 | set_bit(nr ^ BITOP_LE_SWIZZLE, addr); |
| 61 | } |
| 62 | |
| 63 | static inline void clear_bit_le(int nr, void *addr) |
| 64 | { |
| 65 | clear_bit(nr ^ BITOP_LE_SWIZZLE, addr); |
| 66 | } |
| 67 | |
| 68 | static inline void __set_bit_le(int nr, void *addr) |
| 69 | { |
| 70 | __set_bit(nr ^ BITOP_LE_SWIZZLE, addr); |
| 71 | } |
| 72 | |
| 73 | static inline void __clear_bit_le(int nr, void *addr) |
| 74 | { |
| 75 | __clear_bit(nr ^ BITOP_LE_SWIZZLE, addr); |
| 76 | } |
| 77 | |
| 78 | static inline int test_and_set_bit_le(int nr, void *addr) |
| 79 | { |
| 80 | return test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr); |
| 81 | } |
| 82 | |
| 83 | static inline int test_and_clear_bit_le(int nr, void *addr) |
| 84 | { |
| 85 | return test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr); |
| 86 | } |
| 87 | |
| 88 | static inline int __test_and_set_bit_le(int nr, void *addr) |
| 89 | { |
| 90 | return __test_and_set_bit(nr ^ BITOP_LE_SWIZZLE, addr); |
| 91 | } |
| 92 | |
| 93 | static inline int __test_and_clear_bit_le(int nr, void *addr) |
| 94 | { |
| 95 | return __test_and_clear_bit(nr ^ BITOP_LE_SWIZZLE, addr); |
| 96 | } |
| 97 | |
| 98 | #endif /* _ASM_GENERIC_BITOPS_LE_H_ */ |