]> err.no Git - linux-2.6/commit
x86: partial unification of asm-x86/bitops.h
authorJeremy Fitzhardinge <jeremy@goop.org>
Wed, 30 Jan 2008 12:30:55 +0000 (13:30 +0100)
committerIngo Molnar <mingo@elte.hu>
Wed, 30 Jan 2008 12:30:55 +0000 (13:30 +0100)
commit1c54d77078056cde0f195b1a982cb681850efc08
tree2acf18bdf1cd7ff38f79ea09dd75025aa6f60a65
parent7bf0c23ed24b0d95a2a717f86dce1f210e16f8a5
x86: partial unification of asm-x86/bitops.h

This unifies the set/clear/test bit functions of asm/bitops.h.

I have not attempted to merge the bit-finding functions, since they
rely on the machine word size and can't be easily restructured to work
generically without a lot of #ifdefs.  In particular, the 64-bit code
can assume the presence of conditional move instructions, whereas
32-bit needs to be more careful.

The inline assembly for the bit operations has been changed to remove
explicit sizing hints on the instructions, so the assembler will pick
the appropriate instruction forms depending on the architecture and
the context.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
include/asm-x86/bitops.h
include/asm-x86/bitops_32.h
include/asm-x86/bitops_64.h