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author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-22 17:12:37 +1000 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-22 17:12:37 +1000 |
commit | 8725f25acc656c1522d48a6746055099efdaca4c (patch) | |
tree | e241424fa58178ed6c2a95a4eb931ea83dbea33c /include/asm-sparc/bitops_64.h | |
parent | c69cccc95fe4b90dde5fe33e6a3b77880b534fa4 (diff) | |
parent | 93ded9b8fd42abe2c3607097963d8de6ad9117eb (diff) | |
download | blackbird-op-linux-8725f25acc656c1522d48a6746055099efdaca4c.tar.gz blackbird-op-linux-8725f25acc656c1522d48a6746055099efdaca4c.zip |
Merge commit 'origin/master'
Manually fixed up:
drivers/net/fs_enet/fs_enet-main.c
Diffstat (limited to 'include/asm-sparc/bitops_64.h')
-rw-r--r-- | include/asm-sparc/bitops_64.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/include/asm-sparc/bitops_64.h b/include/asm-sparc/bitops_64.h new file mode 100644 index 000000000000..bb87b8080220 --- /dev/null +++ b/include/asm-sparc/bitops_64.h @@ -0,0 +1,107 @@ +/* + * bitops.h: Bit string operations on the V9. + * + * Copyright 1996, 1997 David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef _SPARC64_BITOPS_H +#define _SPARC64_BITOPS_H + +#ifndef _LINUX_BITOPS_H +#error only <linux/bitops.h> can be included directly +#endif + +#include <linux/compiler.h> +#include <asm/byteorder.h> + +extern int test_and_set_bit(unsigned long nr, volatile unsigned long *addr); +extern int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr); +extern int test_and_change_bit(unsigned long nr, volatile unsigned long *addr); +extern void set_bit(unsigned long nr, volatile unsigned long *addr); +extern void clear_bit(unsigned long nr, volatile unsigned long *addr); +extern void change_bit(unsigned long nr, volatile unsigned long *addr); + +#include <asm-generic/bitops/non-atomic.h> + +#ifdef CONFIG_SMP +#define smp_mb__before_clear_bit() membar_storeload_loadload() +#define smp_mb__after_clear_bit() membar_storeload_storestore() +#else +#define smp_mb__before_clear_bit() barrier() +#define smp_mb__after_clear_bit() barrier() +#endif + +#include <asm-generic/bitops/ffz.h> +#include <asm-generic/bitops/__ffs.h> +#include <asm-generic/bitops/fls.h> +#include <asm-generic/bitops/__fls.h> +#include <asm-generic/bitops/fls64.h> + +#ifdef __KERNEL__ + +#include <asm-generic/bitops/sched.h> +#include <asm-generic/bitops/ffs.h> + +/* + * hweightN: returns the hamming weight (i.e. the number + * of bits set) of a N-bit word + */ + +#ifdef ULTRA_HAS_POPULATION_COUNT + +static inline unsigned int hweight64(unsigned long w) +{ + unsigned int res; + + __asm__ ("popc %1,%0" : "=r" (res) : "r" (w)); + return res; +} + +static inline unsigned int hweight32(unsigned int w) +{ + unsigned int res; + + __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xffffffff)); + return res; +} + +static inline unsigned int hweight16(unsigned int w) +{ + unsigned int res; + + __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xffff)); + return res; +} + +static inline unsigned int hweight8(unsigned int w) +{ + unsigned int res; + + __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xff)); + return res; +} + +#else + +#include <asm-generic/bitops/hweight.h> + +#endif +#include <asm-generic/bitops/lock.h> +#endif /* __KERNEL__ */ + +#include <asm-generic/bitops/find.h> + +#ifdef __KERNEL__ + +#include <asm-generic/bitops/ext2-non-atomic.h> + +#define ext2_set_bit_atomic(lock,nr,addr) \ + test_and_set_bit((nr) ^ 0x38,(unsigned long *)(addr)) +#define ext2_clear_bit_atomic(lock,nr,addr) \ + test_and_clear_bit((nr) ^ 0x38,(unsigned long *)(addr)) + +#include <asm-generic/bitops/minix.h> + +#endif /* __KERNEL__ */ + +#endif /* defined(_SPARC64_BITOPS_H) */ |