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Diffstat (limited to 'arch/powerpc/include/asm/code-patching.h')
-rw-r--r--arch/powerpc/include/asm/code-patching.h23
1 files changed, 21 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/code-patching.h b/arch/powerpc/include/asm/code-patching.h
index 3d5acd2b113a..2074b40f3fb5 100644
--- a/arch/powerpc/include/asm/code-patching.h
+++ b/arch/powerpc/include/asm/code-patching.h
@@ -33,14 +33,33 @@ unsigned int create_cond_branch(const unsigned int *addr,
33int patch_branch(unsigned int *addr, unsigned long target, int flags); 33int patch_branch(unsigned int *addr, unsigned long target, int flags);
34int patch_instruction(unsigned int *addr, unsigned int instr); 34int patch_instruction(unsigned int *addr, unsigned int instr);
35int raw_patch_instruction(unsigned int *addr, unsigned int instr); 35int raw_patch_instruction(unsigned int *addr, unsigned int instr);
36int patch_instruction_site(s32 *addr, unsigned int instr);
37int patch_branch_site(s32 *site, unsigned long target, int flags);
38 36
39static inline unsigned long patch_site_addr(s32 *site) 37static inline unsigned long patch_site_addr(s32 *site)
40{ 38{
41 return (unsigned long)site + *site; 39 return (unsigned long)site + *site;
42} 40}
43 41
42static inline int patch_instruction_site(s32 *site, unsigned int instr)
43{
44 return patch_instruction((unsigned int *)patch_site_addr(site), instr);
45}
46
47static inline int patch_branch_site(s32 *site, unsigned long target, int flags)
48{
49 return patch_branch((unsigned int *)patch_site_addr(site), target, flags);
50}
51
52static inline int modify_instruction(unsigned int *addr, unsigned int clr,
53 unsigned int set)
54{
55 return patch_instruction(addr, (*addr & ~clr) | set);
56}
57
58static inline int modify_instruction_site(s32 *site, unsigned int clr, unsigned int set)
59{
60 return modify_instruction((unsigned int *)patch_site_addr(site), clr, set);
61}
62
44int instr_is_relative_branch(unsigned int instr); 63int instr_is_relative_branch(unsigned int instr);
45int instr_is_relative_link_branch(unsigned int instr); 64int instr_is_relative_link_branch(unsigned int instr);
46int instr_is_branch_to_addr(const unsigned int *instr, unsigned long addr); 65int instr_is_branch_to_addr(const unsigned int *instr, unsigned long addr);