diff options
Diffstat (limited to 'arch/x86/include/asm/alternative-asm.h')
| -rw-r--r-- | arch/x86/include/asm/alternative-asm.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h new file mode 100644 index 00000000..94d420b3 --- /dev/null +++ b/arch/x86/include/asm/alternative-asm.h @@ -0,0 +1,27 @@ +#ifdef __ASSEMBLY__ + +#include <asm/asm.h> + +#ifdef CONFIG_SMP + .macro LOCK_PREFIX +1: lock + .section .smp_locks,"a" + .balign 4 + .long 1b - . + .previous + .endm +#else + .macro LOCK_PREFIX + .endm +#endif + +.macro altinstruction_entry orig alt feature orig_len alt_len + .align 8 + .quad \orig + .quad \alt + .word \feature + .byte \orig_len + .byte \alt_len +.endm + +#endif /* __ASSEMBLY__ */ |