diff options
| author | Jiang Liu <liuj97@gmail.com> | 2014-01-07 22:17:11 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-05-20 13:01:09 +0100 |
| commit | 228d249ff91b4ed822a6e4f760c8b3e2de7c0668 (patch) | |
| tree | 47c72988eb4988e7b3fcf3130c7c5dea37129cb4 /arch/arm64/include/asm | |
| parent | 0eebc289aeb6e9c6108b32882fc51ebffae63107 (diff) | |
arm64: introduce aarch64_insn_gen_{nop|branch_imm}() helper functions
Introduce aarch64_insn_gen_{nop|branch_imm}() helper functions, which
will be used to implement jump label on ARM64.
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Jiang Liu <liuj97@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit 5c5bf25d4f7a950382f94fc120a5818197b48fe9)
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'arch/arm64/include/asm')
| -rw-r--r-- | arch/arm64/include/asm/insn.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/insn.h b/arch/arm64/include/asm/insn.h index fb4466022bd0..c44ad39ed310 100644 --- a/arch/arm64/include/asm/insn.h +++ b/arch/arm64/include/asm/insn.h @@ -66,6 +66,11 @@ enum aarch64_insn_imm_type { AARCH64_INSN_IMM_MAX }; +enum aarch64_insn_branch_type { + AARCH64_INSN_BRANCH_NOLINK, + AARCH64_INSN_BRANCH_LINK, +}; + #define __AARCH64_INSN_FUNCS(abbr, mask, val) \ static __always_inline bool aarch64_insn_is_##abbr(u32 code) \ { return (code & (mask)) == (val); } \ @@ -89,6 +94,11 @@ int aarch64_insn_write(void *addr, u32 insn); enum aarch64_insn_encoding_class aarch64_get_insn_class(u32 insn); u32 aarch64_insn_encode_immediate(enum aarch64_insn_imm_type type, u32 insn, u64 imm); +u32 aarch64_insn_gen_branch_imm(unsigned long pc, unsigned long addr, + enum aarch64_insn_branch_type type); +u32 aarch64_insn_gen_hint(enum aarch64_insn_hint_op op); +u32 aarch64_insn_gen_nop(void); + bool aarch64_insn_hotpatch_safe(u32 old_insn, u32 new_insn); int aarch64_insn_patch_text_nosync(void *addr, u32 insn); |