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-rw-r--r--arch/powerpc/include/asm/code-patching-asm.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/code-patching-asm.h b/arch/powerpc/include/asm/code-patching-asm.h
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+++ b/arch/powerpc/include/asm/code-patching-asm.h
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+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2018, Michael Ellerman, IBM Corporation.
+ */
+#ifndef _ASM_POWERPC_CODE_PATCHING_ASM_H
+#define _ASM_POWERPC_CODE_PATCHING_ASM_H
+
+/* Define a "site" that can be patched */
+.macro patch_site label name
+ .pushsection ".rodata"
+ .balign 4
+ .global \name
+\name:
+ .4byte \label - .
+ .popsection
+.endm
+
+#endif /* _ASM_POWERPC_CODE_PATCHING_ASM_H */