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| author |   Christophe Leroy <christophe.leroy@c-s.fr> | 2017-11-24 08:31:09 +0100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2018-01-21 15:06:25 +1100 |
| commit | 8183d99f4a22c2abbc543847a588df3666ef0c0c (patch) | |
| tree | 4fa8acc3ff00f162c9eedf29ec9607f4aa0acf6d /arch/powerpc/include | |
| parent | powerpc/lib/code-patching: refactor patch_instruction() (diff) | |
| download | linux-dev-8183d99f4a22c2abbc543847a588df3666ef0c0c.tar.xz linux-dev-8183d99f4a22c2abbc543847a588df3666ef0c0c.zip | |
powerpc/lib/feature-fixups: use raw_patch_instruction()
feature fixups need to use patch_instruction() early in the boot,
even before the code is relocated to its final address, requiring
patch_instruction() to use PTRRELOC() in order to address data.
But feature fixups applies on code before it is set to read only,
even for modules. Therefore, feature fixups can use
raw_patch_instruction() instead.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/code-patching.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/code-patching.h b/arch/powerpc/include/asm/code-patching.h index 2c895e8d07f7..812535f40124 100644 --- a/arch/powerpc/include/asm/code-patching.h +++ b/arch/powerpc/include/asm/code-patching.h @@ -31,6 +31,7 @@ unsigned int create_cond_branch(const unsigned int *addr, unsigned long target, int flags); int patch_branch(unsigned int *addr, unsigned long target, int flags); int patch_instruction(unsigned int *addr, unsigned int instr); +int raw_patch_instruction(unsigned int *addr, unsigned int instr); int instr_is_relative_branch(unsigned int instr); int instr_is_relative_link_branch(unsigned int instr); |