git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| f5e706ad SR |
1 | /* |
| 2 | * bitops.h: Bit string operations on the V9. | |
| 3 | * | |
| 4 | * Copyright 1996, 1997 David S. Miller (davem@caip.rutgers.edu) | |
| 5 | */ | |
| 6 | ||
| 7 | #ifndef _SPARC64_BITOPS_H | |
| 8 | #define _SPARC64_BITOPS_H | |
| 9 | ||
| 10 | #ifndef _LINUX_BITOPS_H | |
| 11 | #error only <linux/bitops.h> can be included directly | |
| 12 | #endif | |
| 13 | ||
| 14 | #include <linux/compiler.h> | |
| 15 | #include <asm/byteorder.h> | |
| 16 | ||
| 17 | extern int test_and_set_bit(unsigned long nr, volatile unsigned long *addr); | |
| 18 | extern int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr); | |
| 19 | extern int test_and_change_bit(unsigned long nr, volatile unsigned long *addr); | |
| 20 | extern void set_bit(unsigned long nr, volatile unsigned long *addr); | |
| 21 | extern void clear_bit(unsigned long nr, volatile unsigned long *addr); | |
| 22 | extern void change_bit(unsigned long nr, volatile unsigned long *addr); | |
| 23 | ||
| 24 | #include <asm-generic/bitops/non-atomic.h> | |
| 25 | ||
| 26 | #ifdef CONFIG_SMP | |
| 27 | #define smp_mb__before_clear_bit() membar_storeload_loadload() | |
| 28 | #define smp_mb__after_clear_bit() membar_storeload_storestore() | |
| 29 | #else | |
| 30 | #define smp_mb__before_clear_bit() barrier() | |
| 31 | #define smp_mb__after_clear_bit() barrier() | |
| 32 | #endif | |
| 33 | ||
| 34 | #include <asm-generic/bitops/ffz.h> | |
| 35 | #include <asm-generic/bitops/__ffs.h> | |
| 36 | #include <asm-generic/bitops/fls.h> | |
| 37 | #include <asm-generic/bitops/__fls.h> | |
| 38 | #include <asm-generic/bitops/fls64.h> | |
| 39 | ||
| 40 | #ifdef __KERNEL__ | |
| 41 | ||
| 42 | #include <asm-generic/bitops/sched.h> | |
| 43 | #include <asm-generic/bitops/ffs.h> | |
| 44 | ||
| 45 | /* | |
| 46 | * hweightN: returns the hamming weight (i.e. the number | |
| 47 | * of bits set) of a N-bit word | |
| 48 | */ | |
| 49 | ||
| 50 | #ifdef ULTRA_HAS_POPULATION_COUNT | |
| 51 | ||
| 52 | static inline unsigned int hweight64(unsigned long w) | |
| 53 | { | |
| 54 | unsigned int res; | |
| 55 | ||
| 56 | __asm__ ("popc %1,%0" : "=r" (res) : "r" (w)); | |
| 57 | return res; | |
| 58 | } | |
| 59 | ||
| 60 | static inline unsigned int hweight32(unsigned int w) | |
| 61 | { | |
| 62 | unsigned int res; | |
| 63 | ||
| 64 | __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xffffffff)); | |
| 65 | return res; | |
| 66 | } | |
| 67 | ||
| 68 | static inline unsigned int hweight16(unsigned int w) | |
| 69 | { | |
| 70 | unsigned int res; | |
| 71 | ||
| 72 | __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xffff)); | |
| 73 | return res; | |
| 74 | } | |
| 75 | ||
| 76 | static inline unsigned int hweight8(unsigned int w) | |
| 77 | { | |
| 78 | unsigned int res; | |
| 79 | ||
| 80 | __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xff)); | |
| 81 | return res; | |
| 82 | } | |
| 83 | ||
| 84 | #else | |
| 85 | ||
| 86 | #include <asm-generic/bitops/hweight.h> | |
| 87 | ||
| 88 | #endif | |
| 89 | #include <asm-generic/bitops/lock.h> | |
| 90 | #endif /* __KERNEL__ */ | |
| 91 | ||
| 92 | #include <asm-generic/bitops/find.h> | |
| 93 | ||
| 94 | #ifdef __KERNEL__ | |
| 95 | ||
| 96 | #include <asm-generic/bitops/ext2-non-atomic.h> | |
| 97 | ||
| 98 | #define ext2_set_bit_atomic(lock,nr,addr) \ | |
| 99 | test_and_set_bit((nr) ^ 0x38,(unsigned long *)(addr)) | |
| 100 | #define ext2_clear_bit_atomic(lock,nr,addr) \ | |
| 101 | test_and_clear_bit((nr) ^ 0x38,(unsigned long *)(addr)) | |
| 102 | ||
| 103 | #include <asm-generic/bitops/minix.h> | |
| 104 | ||
| 105 | #endif /* __KERNEL__ */ | |
| 106 | ||
| 107 | #endif /* defined(_SPARC64_BITOPS_H) */ |