From 8d883b23aed73cad844ba48051c7e96eddf0f51c Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Mon, 1 Jun 2015 10:47:41 +0100 Subject: arm64: alternative: Merge alternative-asm.h into alternative.h asm/alternative-asm.h and asm/alternative.h are extremely similar, and really deserve to live in the same file (as this makes further modufications a bit easier). Fold the content of alternative-asm.h into alternative.h, and update the few users. Acked-by: Will Deacon Signed-off-by: Marc Zyngier Signed-off-by: Catalin Marinas --- arch/arm64/include/asm/alternative.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'arch/arm64/include/asm/alternative.h') diff --git a/arch/arm64/include/asm/alternative.h b/arch/arm64/include/asm/alternative.h index d261f01e2bae..265b13ea02ee 100644 --- a/arch/arm64/include/asm/alternative.h +++ b/arch/arm64/include/asm/alternative.h @@ -1,6 +1,8 @@ #ifndef __ASM_ALTERNATIVE_H #define __ASM_ALTERNATIVE_H +#ifndef __ASSEMBLY__ + #include #include #include @@ -41,4 +43,29 @@ void free_alternatives_memory(void); " .error \"Alternatives instruction length mismatch\"\n\t"\ ".endif\n" +#else + +.macro altinstruction_entry orig_offset alt_offset feature orig_len alt_len + .word \orig_offset - . + .word \alt_offset - . + .hword \feature + .byte \orig_len + .byte \alt_len +.endm + +.macro alternative_insn insn1 insn2 cap +661: \insn1 +662: .pushsection .altinstructions, "a" + altinstruction_entry 661b, 663f, \cap, 662b-661b, 664f-663f + .popsection + .pushsection .altinstr_replacement, "ax" +663: \insn2 +664: .popsection + .if ((664b-663b) != (662b-661b)) + .error "Alternatives instruction length mismatch" + .endif +.endm + +#endif /* __ASSEMBLY__ */ + #endif /* __ASM_ALTERNATIVE_H */ -- cgit v1.2.3