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| author | Jan Beulich <jbeulich@novell.com> | 2008-01-30 13:31:21 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:31:21 +0100 |
| commit | d88879b2d0225da3ba460bbdb8361bb049653671 (patch) | |
| tree | d9a0b8a215434eab6f29df389780dd73b427b8dd /include/asm-x86/bugs.h | |
| parent | bdb4f156064e5f627213af82292eb8b5cf2dc5aa (diff) | |
| download | op-kernel-dev-d88879b2d0225da3ba460bbdb8361bb049653671.zip op-kernel-dev-d88879b2d0225da3ba460bbdb8361bb049653671.tar.gz | |
x86-64: make pda's cpunumber and nodenumber unsigned
This generally allows better code to be generated, since the zero-
extension during 32-bit operations comes for free (needed when the
result is used as array index or similar), whereas sign extension must
be done explicitly and frequently requires a one byte larger
instruction due to the necessary rex64 prefix.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86/bugs.h')
0 files changed, 0 insertions, 0 deletions
