Commit 8d883b23 authored by Marc Zyngier's avatar Marc Zyngier Committed by Catalin Marinas

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: default avatarWill Deacon <will.deacon@arm.com>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 7616fc8b
#ifndef __ASM_ALTERNATIVE_ASM_H
#define __ASM_ALTERNATIVE_ASM_H
#ifdef __ASSEMBLY__
.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_ASM_H */
#ifndef __ASM_ALTERNATIVE_H
#define __ASM_ALTERNATIVE_H
#ifndef __ASSEMBLY__
#include <linux/types.h>
#include <linux/stddef.h>
#include <linux/stringify.h>
......@@ -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 */
......@@ -21,7 +21,7 @@
#include <linux/init.h>
#include <linux/linkage.h>
#include <asm/alternative-asm.h>
#include <asm/alternative.h>
#include <asm/assembler.h>
#include <asm/asm-offsets.h>
#include <asm/cpufeature.h>
......
......@@ -22,7 +22,7 @@
#include <linux/init.h>
#include <asm/assembler.h>
#include <asm/cpufeature.h>
#include <asm/alternative-asm.h>
#include <asm/alternative.h>
#include "proc-macros.S"
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment