diff options
author | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2008-05-03 18:25:02 -0400 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2008-05-12 11:46:55 -0400 |
commit | fcd84f2fca49166dab2dba259eca6e633585763f (patch) | |
tree | ce9eb07612fbde779ad80a21ed58b5b300e09f70 /include/asm-mips | |
parent | 7ff83f21d23d17b63bbb984fee5d12aa5a8066b3 (diff) |
[MIPS] Fix __fls for non-MIPS32/MIPS64 cpus
Only MIPS32 and MIPS64 CPUs implement clz/dclz. Therefore don't export
__ilog2() for non MIPS32/MIPS64 cpus and use generic __fls bitop code for
these cpus.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'include/asm-mips')
-rw-r--r-- | include/asm-mips/bitops.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/asm-mips/bitops.h b/include/asm-mips/bitops.h index c2bd126c3b4e..5e1f590a24a1 100644 --- a/include/asm-mips/bitops.h +++ b/include/asm-mips/bitops.h | |||
@@ -558,6 +558,8 @@ static inline void __clear_bit_unlock(unsigned long nr, volatile unsigned long * | |||
558 | __clear_bit(nr, addr); | 558 | __clear_bit(nr, addr); |
559 | } | 559 | } |
560 | 560 | ||
561 | #if defined(CONFIG_CPU_MIPS32) || defined(CONFIG_CPU_MIPS64) | ||
562 | |||
561 | /* | 563 | /* |
562 | * Return the bit position (0..63) of the most significant 1 bit in a word | 564 | * Return the bit position (0..63) of the most significant 1 bit in a word |
563 | * Returns -1 if no 1 bit exists | 565 | * Returns -1 if no 1 bit exists |
@@ -596,8 +598,6 @@ static inline unsigned long __fls(unsigned long x) | |||
596 | return __ilog2(x); | 598 | return __ilog2(x); |
597 | } | 599 | } |
598 | 600 | ||
599 | #if defined(CONFIG_CPU_MIPS32) || defined(CONFIG_CPU_MIPS64) | ||
600 | |||
601 | /* | 601 | /* |
602 | * __ffs - find first bit in word. | 602 | * __ffs - find first bit in word. |
603 | * @word: The word to search | 603 | * @word: The word to search |
@@ -654,6 +654,7 @@ static inline int ffs(int word) | |||
654 | #else | 654 | #else |
655 | 655 | ||
656 | #include <asm-generic/bitops/__ffs.h> | 656 | #include <asm-generic/bitops/__ffs.h> |
657 | #include <asm-generic/bitops/__fls.h> | ||
657 | #include <asm-generic/bitops/ffs.h> | 658 | #include <asm-generic/bitops/ffs.h> |
658 | #include <asm-generic/bitops/fls.h> | 659 | #include <asm-generic/bitops/fls.h> |
659 | #include <asm-generic/bitops/fls64.h> | 660 | #include <asm-generic/bitops/fls64.h> |