diff options
Diffstat (limited to 'arch/arm64/net/bpf_jit.h')
| -rw-r--r-- | arch/arm64/net/bpf_jit.h | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/arch/arm64/net/bpf_jit.h b/arch/arm64/net/bpf_jit.h index b22ab2f97a30..d13de4222cfb 100644 --- a/arch/arm64/net/bpf_jit.h +++ b/arch/arm64/net/bpf_jit.h @@ -119,6 +119,26 @@ aarch64_insn_gen_load_store_ex(Rt, Rn, Rs, A64_SIZE(sf), \ AARCH64_INSN_LDST_STORE_REL_EX) +/* Load-acquire & store-release */ +#define A64_LDAR(Rt, Rn, size) \ + aarch64_insn_gen_load_acq_store_rel(Rt, Rn, AARCH64_INSN_SIZE_##size, \ + AARCH64_INSN_LDST_LOAD_ACQ) +#define A64_STLR(Rt, Rn, size) \ + aarch64_insn_gen_load_acq_store_rel(Rt, Rn, AARCH64_INSN_SIZE_##size, \ + AARCH64_INSN_LDST_STORE_REL) + +/* Rt = [Rn] (load acquire) */ +#define A64_LDARB(Wt, Xn) A64_LDAR(Wt, Xn, 8) +#define A64_LDARH(Wt, Xn) A64_LDAR(Wt, Xn, 16) +#define A64_LDAR32(Wt, Xn) A64_LDAR(Wt, Xn, 32) +#define A64_LDAR64(Xt, Xn) A64_LDAR(Xt, Xn, 64) + +/* [Rn] = Rt (store release) */ +#define A64_STLRB(Wt, Xn) A64_STLR(Wt, Xn, 8) +#define A64_STLRH(Wt, Xn) A64_STLR(Wt, Xn, 16) +#define A64_STLR32(Wt, Xn) A64_STLR(Wt, Xn, 32) +#define A64_STLR64(Xt, Xn) A64_STLR(Xt, Xn, 64) + /* * LSE atomics * @@ -167,7 +187,9 @@ /* Rn - imm12; set condition flags */ #define A64_CMP_I(sf, Rn, imm12) A64_SUBS_I(sf, A64_ZR, Rn, imm12) /* Rd = Rn */ -#define A64_MOV(sf, Rd, Rn) A64_ADD_I(sf, Rd, Rn, 0) +#define A64_MOV(sf, Rd, Rn) \ + (((Rd) == A64_SP || (Rn) == A64_SP) ? A64_ADD_I(sf, Rd, Rn, 0) : \ + aarch64_insn_gen_move_reg(Rd, Rn, A64_VARIANT(sf))) /* Bitfield move */ #define A64_BITFIELD(sf, Rd, Rn, immr, imms, type) \ @@ -305,4 +327,9 @@ #define A64_MRS_SP_EL0(Rt) \ aarch64_insn_gen_mrs(Rt, AARCH64_INSN_SYSREG_SP_EL0) +/* Barriers */ +#define A64_SB aarch64_insn_get_sb_value() +#define A64_DSB_NSH (aarch64_insn_get_dsb_base_value() | 0x7 << 8) +#define A64_ISB aarch64_insn_get_isb_value() + #endif /* _BPF_JIT_H */ |