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| author | Andi Kleen <ak@suse.de> | 2006-09-26 10:52:29 +0200 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2006-09-26 10:52:29 +0200 |
| commit | 07c9819b31eda7954feddc83f2fae035f31c11e1 (patch) | |
| tree | 7eb34bdcd74075d0e01da0daa93d5123032bc7bb /include | |
| parent | b06babac45e1546dfb504f1f25eb0495632bfc41 (diff) | |
| download | blackbird-op-linux-07c9819b31eda7954feddc83f2fae035f31c11e1.tar.gz blackbird-op-linux-07c9819b31eda7954feddc83f2fae035f31c11e1.zip | |
[PATCH] i386: add alternative-asm.h to allow LOCK_PREFIX replacement in .S files
LOCK_PREFIX is replaced by nops on UP systems, so it has to be a special
macro. Previously this was only possible from C. Allow it for pure
assembly files too. Similar to earlier x86-64 patch.
Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-i386/alternative-asm.i | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/asm-i386/alternative-asm.i b/include/asm-i386/alternative-asm.i new file mode 100644 index 000000000000..6c47e3b9484b --- /dev/null +++ b/include/asm-i386/alternative-asm.i @@ -0,0 +1,14 @@ +#include <linux/config.h> + +#ifdef CONFIG_SMP + .macro LOCK_PREFIX +1: lock + .section .smp_locks,"a" + .align 4 + .long 1b + .previous + .endm +#else + .macro LOCK_PREFIX + .endm +#endif |
