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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-12-02 13:00:24 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-12-23 22:36:55 +1100 |
| commit | 29562a9da29478834e57f81e3804e9ec7a6b350b (patch) | |
| tree | e108845537f282cf5ab959932b8138025e93e181 /arch/powerpc/lib/code-patching.c | |
| parent | ff14a9c09fe91a70bfc6381809877e5a19e38cdb (diff) | |
| download | lwn-29562a9da29478834e57f81e3804e9ec7a6b350b.tar.gz lwn-29562a9da29478834e57f81e3804e9ec7a6b350b.zip | |
powerpc/code-patching: Move patch_exception() outside code-patching.c
patch_exception() is dedicated to book3e/64 is nothing more than
a normal use of patch_branch(), so move it into a place dedicated
to book3e/64.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/0968622b98b1fb51838c35b844c42ad6609de62e.1638446239.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/lib/code-patching.c')
| -rw-r--r-- | arch/powerpc/lib/code-patching.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c index 441a71c22dfa..f4986a781d53 100644 --- a/arch/powerpc/lib/code-patching.c +++ b/arch/powerpc/lib/code-patching.c @@ -370,22 +370,6 @@ int translate_branch(ppc_inst_t *instr, const u32 *dest, const u32 *src) return 1; } -#ifdef CONFIG_PPC_BOOK3E_64 -void __patch_exception(int exc, unsigned long addr) -{ - extern unsigned int interrupt_base_book3e; - unsigned int *ibase = &interrupt_base_book3e; - - /* Our exceptions vectors start with a NOP and -then- a branch - * to deal with single stepping from userspace which stops on - * the second instruction. Thus we need to patch the second - * instruction of the exception, not the first one - */ - - patch_branch(ibase + (exc / 4) + 1, addr, 0); -} -#endif - #ifdef CONFIG_CODE_PATCHING_SELFTEST static int __init instr_is_branch_to_addr(const u32 *instr, unsigned long addr) |