projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| f5e706ad SR |
2 | /* |
| 3 | * bitops.h: Bit string operations on the Sparc. | |
| 4 | * | |
| 5 | * Copyright 1995 David S. Miller (davem@caip.rutgers.edu) | |
| 6 | * Copyright 1996 Eddie C. Dost (ecd@skynet.be) | |
| 7 | * Copyright 2001 Anton Blanchard (anton@samba.org) | |
| 8 | */ | |
| 9 | ||
| 10 | #ifndef _SPARC_BITOPS_H | |
| 11 | #define _SPARC_BITOPS_H | |
| 12 | ||
| 13 | #include <linux/compiler.h> | |
| 14 | #include <asm/byteorder.h> | |
| 15 | ||
| 16 | #ifdef __KERNEL__ | |
| 17 | ||
| 18 | #ifndef _LINUX_BITOPS_H | |
| 19 | #error only <linux/bitops.h> can be included directly | |
| 20 | #endif | |
| 21 | ||
| f05a6865 SR |
22 | unsigned long ___set_bit(unsigned long *addr, unsigned long mask); |
| 23 | unsigned long ___clear_bit(unsigned long *addr, unsigned long mask); | |
| 24 | unsigned long ___change_bit(unsigned long *addr, unsigned long mask); | |
| f5e706ad SR |
25 | |
| 26 | /* | |
| 27 | * Set bit 'nr' in 32-bit quantity at address 'addr' where bit '0' | |
| 28 | * is in the highest of the four bytes and bit '31' is the high bit | |
| 29 | * within the first byte. Sparc is BIG-Endian. Unless noted otherwise | |
| 30 | * all bit-ops return 0 if bit was previously clear and != 0 otherwise. | |
| 31 | */ | |
| 32 | static inline int test_and_set_bit(unsigned long nr, volatile unsigned long *addr) | |
| 33 | { | |
| 34 | unsigned long *ADDR, mask; | |
| 35 | ||
| 36 | ADDR = ((unsigned long *) addr) + (nr >> 5); | |
| 37 | mask = 1 << (nr & 31); | |
| 38 | ||
| 39 | return ___set_bit(ADDR, mask) != 0; | |
| 40 | } | |
| 41 | ||
| 42 | static inline void set_bit(unsigned long nr, volatile unsigned long *addr) | |
| 43 | { | |
| 44 | unsigned long *ADDR, mask; | |
| 45 | ||
| 46 | ADDR = ((unsigned long *) addr) + (nr >> 5); | |
| 47 | mask = 1 << (nr & 31); | |
| 48 | ||
| 49 | (void) ___set_bit(ADDR, mask); | |
| 50 | } | |
| 51 | ||
| 52 | static inline int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr) | |
| 53 | { | |
| 54 | unsigned long *ADDR, mask; | |
| 55 | ||
| 56 | ADDR = ((unsigned long *) addr) + (nr >> 5); | |
| 57 | mask = 1 << (nr & 31); | |
| 58 | ||
| 59 | return ___clear_bit(ADDR, mask) != 0; | |
| 60 | } | |
| 61 | ||
| 62 | static inline void clear_bit(unsigned long nr, volatile unsigned long *addr) | |
| 63 | { | |
| 64 | unsigned long *ADDR, mask; | |
| 65 | ||
| 66 | ADDR = ((unsigned long *) addr) + (nr >> 5); | |
| 67 | mask = 1 << (nr & 31); | |
| 68 | ||
| 69 | (void) ___clear_bit(ADDR, mask); | |
| 70 | } | |
| 71 | ||
| 72 | static inline int test_and_change_bit(unsigned long nr, volatile unsigned long *addr) | |
| 73 | { | |
| 74 | unsigned long *ADDR, mask; | |
| 75 | ||
| 76 | ADDR = ((unsigned long *) addr) + (nr >> 5); | |
| 77 | mask = 1 << (nr & 31); | |
| 78 | ||
| 79 | return ___change_bit(ADDR, mask) != 0; | |
| 80 | } | |
| 81 | ||
| 82 | static inline void change_bit(unsigned long nr, volatile unsigned long *addr) | |
| 83 | { | |
| 84 | unsigned long *ADDR, mask; | |
| 85 | ||
| 86 | ADDR = ((unsigned long *) addr) + (nr >> 5); | |
| 87 | mask = 1 << (nr & 31); | |
| 88 | ||
| 89 | (void) ___change_bit(ADDR, mask); | |
| 90 | } | |
| 91 | ||
| 92 | #include <asm-generic/bitops/non-atomic.h> | |
| 93 | ||
| f5e706ad SR |
94 | #include <asm-generic/bitops/ffz.h> |
| 95 | #include <asm-generic/bitops/__ffs.h> | |
| 96 | #include <asm-generic/bitops/sched.h> | |
| 97 | #include <asm-generic/bitops/ffs.h> | |
| 98 | #include <asm-generic/bitops/fls.h> | |
| e8e8e80e | 99 | #include <asm-generic/bitops/__fls.h> |
| f5e706ad SR |
100 | #include <asm-generic/bitops/fls64.h> |
| 101 | #include <asm-generic/bitops/hweight.h> | |
| 102 | #include <asm-generic/bitops/lock.h> | |
| 103 | #include <asm-generic/bitops/find.h> | |
| 861b5ae7 | 104 | #include <asm-generic/bitops/le.h> |
| f5e706ad | 105 | #include <asm-generic/bitops/ext2-atomic.h> |
| f5e706ad SR |
106 | |
| 107 | #endif /* __KERNEL__ */ | |
| 108 | ||
| 109 | #endif /* defined(_SPARC_BITOPS_H) */ |