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author | Ingo Molnar <mingo@elte.hu> | 2009-01-03 18:54:51 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-01-03 18:54:51 +0100 |
commit | e465b535ce5b2318798c68e1454917204494bfe3 (patch) | |
tree | 7cd7af9813a1fe2bfb04f9edd149e0f152b6cb1d | |
parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/... (diff) | |
parent | xtensa: define __fls (diff) | |
download | linux-e465b535ce5b2318798c68e1454917204494bfe3.tar.xz linux-e465b535ce5b2318798c68e1454917204494bfe3.zip |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask into cpus4096-v2
-rw-r--r-- | arch/cris/include/asm/bitops.h | 1 | ||||
-rw-r--r-- | arch/h8300/include/asm/bitops.h | 1 | ||||
-rw-r--r-- | include/asm-frv/bitops.h | 13 | ||||
-rw-r--r-- | include/asm-m32r/bitops.h | 1 | ||||
-rw-r--r-- | include/asm-mn10300/bitops.h | 11 | ||||
-rw-r--r-- | include/asm-xtensa/bitops.h | 11 |
6 files changed, 38 insertions, 0 deletions
diff --git a/arch/cris/include/asm/bitops.h b/arch/cris/include/asm/bitops.h index c0e62f811e09..9e69cfb7f134 100644 --- a/arch/cris/include/asm/bitops.h +++ b/arch/cris/include/asm/bitops.h @@ -148,6 +148,7 @@ static inline int test_and_change_bit(int nr, volatile unsigned long *addr) #define ffs kernel_ffs #include <asm-generic/bitops/fls.h> +#include <asm-generic/bitops/__fls.h> #include <asm-generic/bitops/fls64.h> #include <asm-generic/bitops/hweight.h> #include <asm-generic/bitops/find.h> diff --git a/arch/h8300/include/asm/bitops.h b/arch/h8300/include/asm/bitops.h index cb18e3b0aa94..cb9ddf5fc54f 100644 --- a/arch/h8300/include/asm/bitops.h +++ b/arch/h8300/include/asm/bitops.h @@ -207,6 +207,7 @@ static __inline__ unsigned long __ffs(unsigned long word) #endif /* __KERNEL__ */ #include <asm-generic/bitops/fls.h> +#include <asm-generic/bitops/__fls.h> #include <asm-generic/bitops/fls64.h> #endif /* _H8300_BITOPS_H */ diff --git a/include/asm-frv/bitops.h b/include/asm-frv/bitops.h index 39456ba0ec17..287f6f697ce2 100644 --- a/include/asm-frv/bitops.h +++ b/include/asm-frv/bitops.h @@ -339,6 +339,19 @@ int __ffs(unsigned long x) return 31 - bit; } +/** + * __fls - find last (most-significant) set bit in a long word + * @word: the word to search + * + * Undefined if no set bit exists, so code should check against 0 first. + */ +static inline unsigned long __fls(unsigned long word) +{ + unsigned long bit; + asm("scan %1,gr0,%0" : "=r"(bit) : "r"(word)); + return bit; +} + /* * special slimline version of fls() for calculating ilog2_u32() * - note: no protection against n == 0 diff --git a/include/asm-m32r/bitops.h b/include/asm-m32r/bitops.h index 6dc9b81bf9f3..aaddf0d57603 100644 --- a/include/asm-m32r/bitops.h +++ b/include/asm-m32r/bitops.h @@ -251,6 +251,7 @@ static __inline__ int test_and_change_bit(int nr, volatile void * addr) #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__ diff --git a/include/asm-mn10300/bitops.h b/include/asm-mn10300/bitops.h index cc6d40c05cf3..0b610f482abb 100644 --- a/include/asm-mn10300/bitops.h +++ b/include/asm-mn10300/bitops.h @@ -196,6 +196,17 @@ int fls(int x) } /** + * __fls - find last (most-significant) set bit in a long word + * @word: the word to search + * + * Undefined if no set bit exists, so code should check against 0 first. + */ +static inline unsigned long __fls(unsigned long word) +{ + return __ilog2_u32(word); +} + +/** * ffs - find first bit set * @x: the word to search * diff --git a/include/asm-xtensa/bitops.h b/include/asm-xtensa/bitops.h index 23261e8f2e5a..6c3930397bd3 100644 --- a/include/asm-xtensa/bitops.h +++ b/include/asm-xtensa/bitops.h @@ -82,6 +82,16 @@ static inline int fls (unsigned int x) return 32 - __cntlz(x); } +/** + * __fls - find last (most-significant) set bit in a long word + * @word: the word to search + * + * Undefined if no set bit exists, so code should check against 0 first. + */ +static inline unsigned long __fls(unsigned long word) +{ + return 31 - __cntlz(word); +} #else /* Use the generic implementation if we don't have the nsa/nsau instructions. */ @@ -90,6 +100,7 @@ static inline int fls (unsigned int x) # include <asm-generic/bitops/__ffs.h> # include <asm-generic/bitops/ffz.h> # include <asm-generic/bitops/fls.h> +# include <asm-generic/bitops/__fls.h> #endif |