generic: implement __fls on all 64-bit archs
authorAlexander van Heukelum <heukelum@mailshack.com>
Sat, 15 Mar 2008 17:31:49 +0000 (18:31 +0100)
committerIngo Molnar <mingo@elte.hu>
Sat, 26 Apr 2008 17:21:16 +0000 (19:21 +0200)
commit56a6b1eb7bfb5ace0b5cb9c149f502fbd101b8ab
tree46d3781050938b0649fc89cd8e7f612cacb66984
parent7d9dff22e8ad06ad330968c9e3d3a2fb55a5f9c3
generic: implement __fls on all 64-bit archs

Implement __fls on all 64-bit archs:

alpha has an implementation of fls64.
Added __fls(x) = fls64(x) - 1.

ia64 has fls, but not __fls.
Added __fls based on code of fls.

mips and powerpc have __ilog2, which is the same as __fls.
Added __fls = __ilog2.

parisc, s390, sh and sparc64:
Include generic __fls.

x86_64 already has __fls.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
include/asm-alpha/bitops.h
include/asm-ia64/bitops.h
include/asm-mips/bitops.h
include/asm-parisc/bitops.h
include/asm-powerpc/bitops.h
include/asm-s390/bitops.h
include/asm-sh/bitops.h
include/asm-sparc64/bitops.h