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76f30759 PA |
1 | #ifndef _ASM_X86_ALTERNATIVE_ASM_H |
2 | #define _ASM_X86_ALTERNATIVE_ASM_H | |
3 | ||
7e02cb94 AB |
4 | #ifdef __ASSEMBLY__ |
5 | ||
99063c0b | 6 | #include <asm/asm.h> |
7e02cb94 AB |
7 | |
8 | #ifdef CONFIG_SMP | |
9 | .macro LOCK_PREFIX | |
ceb7b40b | 10 | 672: lock |
9cebed42 | 11 | .pushsection .smp_locks,"a" |
5967ed87 | 12 | .balign 4 |
ceb7b40b | 13 | .long 672b - . |
9cebed42 | 14 | .popsection |
7e02cb94 AB |
15 | .endm |
16 | #else | |
17 | .macro LOCK_PREFIX | |
18 | .endm | |
19 | #endif | |
20 | ||
9072d11d | 21 | .macro altinstruction_entry orig alt feature orig_len alt_len |
59e97e4d AL |
22 | .long \orig - . |
23 | .long \alt - . | |
9072d11d FY |
24 | .word \feature |
25 | .byte \orig_len | |
26 | .byte \alt_len | |
27 | .endm | |
28 | ||
7e02cb94 | 29 | #endif /* __ASSEMBLY__ */ |
76f30759 PA |
30 | |
31 | #endif /* _ASM_X86_ALTERNATIVE_ASM_H */ |