diff options
Diffstat (limited to 'arch/arm64/lib/insn.c')
| -rw-r--r-- | arch/arm64/lib/insn.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm64/lib/insn.c b/arch/arm64/lib/insn.c index b008a9b46a7f..9bef696e2230 100644 --- a/arch/arm64/lib/insn.c +++ b/arch/arm64/lib/insn.c @@ -540,6 +540,35 @@ u32 aarch64_insn_gen_load_store_pair(enum aarch64_insn_register reg1, offset >> shift); } +u32 aarch64_insn_gen_load_acq_store_rel(enum aarch64_insn_register reg, + enum aarch64_insn_register base, + enum aarch64_insn_size_type size, + enum aarch64_insn_ldst_type type) +{ + u32 insn; + + switch (type) { + case AARCH64_INSN_LDST_LOAD_ACQ: + insn = aarch64_insn_get_load_acq_value(); + break; + case AARCH64_INSN_LDST_STORE_REL: + insn = aarch64_insn_get_store_rel_value(); + break; + default: + pr_err("%s: unknown load-acquire/store-release encoding %d\n", + __func__, type); + return AARCH64_BREAK_FAULT; + } + + insn = aarch64_insn_encode_ldst_size(size, insn); + + insn = aarch64_insn_encode_register(AARCH64_INSN_REGTYPE_RT, insn, + reg); + + return aarch64_insn_encode_register(AARCH64_INSN_REGTYPE_RN, insn, + base); +} + u32 aarch64_insn_gen_load_store_ex(enum aarch64_insn_register reg, enum aarch64_insn_register base, enum aarch64_insn_register state, |