| /* |
| * Copyright (C) 2013 Huawei Ltd. |
| * Author: Jiang Liu <liuj97@gmail.com> |
| * |
| * Copyright (C) 2014 Zi Shen Lim <zlim.lnx@gmail.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| #ifndef __ASM_INSN_H |
| #define __ASM_INSN_H |
| #include <linux/types.h> |
| |
| /* A64 instructions are always 32 bits. */ |
| #define AARCH64_INSN_SIZE 4 |
| |
| #ifndef __ASSEMBLY__ |
| /* |
| * ARM Architecture Reference Manual for ARMv8 Profile-A, Issue A.a |
| * Section C3.1 "A64 instruction index by encoding": |
| * AArch64 main encoding table |
| * Bit position |
| * 28 27 26 25 Encoding Group |
| * 0 0 - - Unallocated |
| * 1 0 0 - Data processing, immediate |
| * 1 0 1 - Branch, exception generation and system instructions |
| * - 1 - 0 Loads and stores |
| * - 1 0 1 Data processing - register |
| * 0 1 1 1 Data processing - SIMD and floating point |
| * 1 1 1 1 Data processing - SIMD and floating point |
| * "-" means "don't care" |
| */ |
| enum aarch64_insn_encoding_class { |
| AARCH64_INSN_CLS_UNKNOWN, /* UNALLOCATED */ |
| AARCH64_INSN_CLS_DP_IMM, /* Data processing - immediate */ |
| AARCH64_INSN_CLS_DP_REG, /* Data processing - register */ |
| AARCH64_INSN_CLS_DP_FPSIMD, /* Data processing - SIMD and FP */ |
| AARCH64_INSN_CLS_LDST, /* Loads and stores */ |
| AARCH64_INSN_CLS_BR_SYS, /* Branch, exception generation and |
| * system instructions */ |
| }; |
| |
| enum aarch64_insn_hint_op { |
| AARCH64_INSN_HINT_NOP = 0x0 << 5, |
| AARCH64_INSN_HINT_YIELD = 0x1 << 5, |
| AARCH64_INSN_HINT_WFE = 0x2 << 5, |
| AARCH64_INSN_HINT_WFI = 0x3 << 5, |
| AARCH64_INSN_HINT_SEV = 0x4 << 5, |
| AARCH64_INSN_HINT_SEVL = 0x5 << 5, |
| }; |
| |
| enum aarch64_insn_imm_type { |
| AARCH64_INSN_IMM_ADR, |
| AARCH64_INSN_IMM_26, |
| AARCH64_INSN_IMM_19, |
| AARCH64_INSN_IMM_16, |
| AARCH64_INSN_IMM_14, |
| AARCH64_INSN_IMM_12, |
| AARCH64_INSN_IMM_9, |
| AARCH64_INSN_IMM_7, |
| AARCH64_INSN_IMM_6, |
| AARCH64_INSN_IMM_S, |
| AARCH64_INSN_IMM_R, |
| AARCH64_INSN_IMM_MAX |
| }; |
| |
| enum aarch64_insn_register_type { |
| AARCH64_INSN_REGTYPE_RT, |
| AARCH64_INSN_REGTYPE_RN, |
| AARCH64_INSN_REGTYPE_RT2, |
| AARCH64_INSN_REGTYPE_RM, |
| AARCH64_INSN_REGTYPE_RD, |
| AARCH64_INSN_REGTYPE_RA, |
| }; |
| |
| enum aarch64_insn_register { |
| AARCH64_INSN_REG_0 = 0, |
| AARCH64_INSN_REG_1 = 1, |
| AARCH64_INSN_REG_2 = 2, |
| AARCH64_INSN_REG_3 = 3, |
| AARCH64_INSN_REG_4 = 4, |
| AARCH64_INSN_REG_5 = 5, |
| AARCH64_INSN_REG_6 = 6, |
| AARCH64_INSN_REG_7 = 7, |
| AARCH64_INSN_REG_8 = 8, |
| AARCH64_INSN_REG_9 = 9, |
| AARCH64_INSN_REG_10 = 10, |
| AARCH64_INSN_REG_11 = 11, |
| AARCH64_INSN_REG_12 = 12, |
| AARCH64_INSN_REG_13 = 13, |
| AARCH64_INSN_REG_14 = 14, |
| AARCH64_INSN_REG_15 = 15, |
| AARCH64_INSN_REG_16 = 16, |
| AARCH64_INSN_REG_17 = 17, |
| AARCH64_INSN_REG_18 = 18, |
| AARCH64_INSN_REG_19 = 19, |
| AARCH64_INSN_REG_20 = 20, |
| AARCH64_INSN_REG_21 = 21, |
| AARCH64_INSN_REG_22 = 22, |
| AARCH64_INSN_REG_23 = 23, |
| AARCH64_INSN_REG_24 = 24, |
| AARCH64_INSN_REG_25 = 25, |
| AARCH64_INSN_REG_26 = 26, |
| AARCH64_INSN_REG_27 = 27, |
| AARCH64_INSN_REG_28 = 28, |
| AARCH64_INSN_REG_29 = 29, |
| AARCH64_INSN_REG_FP = 29, /* Frame pointer */ |
| AARCH64_INSN_REG_30 = 30, |
| AARCH64_INSN_REG_LR = 30, /* Link register */ |
| AARCH64_INSN_REG_ZR = 31, /* Zero: as source register */ |
| AARCH64_INSN_REG_SP = 31 /* Stack pointer: as load/store base reg */ |
| }; |
| |
| enum aarch64_insn_variant { |
| AARCH64_INSN_VARIANT_32BIT, |
| AARCH64_INSN_VARIANT_64BIT |
| }; |
| |
| enum aarch64_insn_condition { |
| AARCH64_INSN_COND_EQ = 0x0, /* == */ |
| AARCH64_INSN_COND_NE = 0x1, /* != */ |
| AARCH64_INSN_COND_CS = 0x2, /* unsigned >= */ |
| AARCH64_INSN_COND_CC = 0x3, /* unsigned < */ |
| AARCH64_INSN_COND_MI = 0x4, /* < 0 */ |
| AARCH64_INSN_COND_PL = 0x5, /* >= 0 */ |
| AARCH64_INSN_COND_VS = 0x6, /* overflow */ |
| AARCH64_INSN_COND_VC = 0x7, /* no overflow */ |
| AARCH64_INSN_COND_HI = 0x8, /* unsigned > */ |
| AARCH64_INSN_COND_LS = 0x9, /* unsigned <= */ |
| AARCH64_INSN_COND_GE = 0xa, /* signed >= */ |
| AARCH64_INSN_COND_LT = 0xb, /* signed < */ |
| AARCH64_INSN_COND_GT = 0xc, /* signed > */ |
| AARCH64_INSN_COND_LE = 0xd, /* signed <= */ |
| AARCH64_INSN_COND_AL = 0xe, /* always */ |
| }; |
| |
| enum aarch64_insn_branch_type { |
| AARCH64_INSN_BRANCH_NOLINK, |
| AARCH64_INSN_BRANCH_LINK, |
| AARCH64_INSN_BRANCH_RETURN, |
| AARCH64_INSN_BRANCH_COMP_ZERO, |
| AARCH64_INSN_BRANCH_COMP_NONZERO, |
| }; |
| |
| enum aarch64_insn_size_type { |
| AARCH64_INSN_SIZE_8, |
| AARCH64_INSN_SIZE_16, |
| AARCH64_INSN_SIZE_32, |
| AARCH64_INSN_SIZE_64, |
| }; |
| |
| enum aarch64_insn_ldst_type { |
| AARCH64_INSN_LDST_LOAD_REG_OFFSET, |
| AARCH64_INSN_LDST_STORE_REG_OFFSET, |
| AARCH64_INSN_LDST_LOAD_PAIR_PRE_INDEX, |
| AARCH64_INSN_LDST_STORE_PAIR_PRE_INDEX, |
| AARCH64_INSN_LDST_LOAD_PAIR_POST_INDEX, |
| AARCH64_INSN_LDST_STORE_PAIR_POST_INDEX, |
| }; |
| |
| enum aarch64_insn_adsb_type { |
| AARCH64_INSN_ADSB_ADD, |
| AARCH64_INSN_ADSB_SUB, |
| AARCH64_INSN_ADSB_ADD_SETFLAGS, |
| AARCH64_INSN_ADSB_SUB_SETFLAGS |
| }; |
| |
| enum aarch64_insn_movewide_type { |
| AARCH64_INSN_MOVEWIDE_ZERO, |
| AARCH64_INSN_MOVEWIDE_KEEP, |
| AARCH64_INSN_MOVEWIDE_INVERSE |
| }; |
| |
| enum aarch64_insn_bitfield_type { |
| AARCH64_INSN_BITFIELD_MOVE, |
| AARCH64_INSN_BITFIELD_MOVE_UNSIGNED, |
| AARCH64_INSN_BITFIELD_MOVE_SIGNED |
| }; |
| |
| enum aarch64_insn_data1_type { |
| AARCH64_INSN_DATA1_REVERSE_16, |
| AARCH64_INSN_DATA1_REVERSE_32, |
| AARCH64_INSN_DATA1_REVERSE_64, |
| }; |
| |
| enum aarch64_insn_data2_type { |
| AARCH64_INSN_DATA2_UDIV, |
| AARCH64_INSN_DATA2_SDIV, |
| AARCH64_INSN_DATA2_LSLV, |
| AARCH64_INSN_DATA2_LSRV, |
| AARCH64_INSN_DATA2_ASRV, |
| AARCH64_INSN_DATA2_RORV, |
| }; |
| |
| enum aarch64_insn_data3_type { |
| AARCH64_INSN_DATA3_MADD, |
| AARCH64_INSN_DATA3_MSUB, |
| }; |
| |
| enum aarch64_insn_logic_type { |
| AARCH64_INSN_LOGIC_AND, |
| AARCH64_INSN_LOGIC_BIC, |
| AARCH64_INSN_LOGIC_ORR, |
| AARCH64_INSN_LOGIC_ORN, |
| AARCH64_INSN_LOGIC_EOR, |
| AARCH64_INSN_LOGIC_EON, |
| AARCH64_INSN_LOGIC_AND_SETFLAGS, |
| AARCH64_INSN_LOGIC_BIC_SETFLAGS |
| }; |
| |
| #define __AARCH64_INSN_FUNCS(abbr, mask, val) \ |
| static __always_inline bool aarch64_insn_is_##abbr(u32 code) \ |
| { return (code & (mask)) == (val); } \ |
| static __always_inline u32 aarch64_insn_get_##abbr##_value(void) \ |
| { return (val); } |
| |
| __AARCH64_INSN_FUNCS(str_reg, 0x3FE0EC00, 0x38206800) |
| __AARCH64_INSN_FUNCS(ldr_reg, 0x3FE0EC00, 0x38606800) |
| __AARCH64_INSN_FUNCS(stp_post, 0x7FC00000, 0x28800000) |
| __AARCH64_INSN_FUNCS(ldp_post, 0x7FC00000, 0x28C00000) |
| __AARCH64_INSN_FUNCS(stp_pre, 0x7FC00000, 0x29800000) |
| __AARCH64_INSN_FUNCS(ldp_pre, 0x7FC00000, 0x29C00000) |
| __AARCH64_INSN_FUNCS(add_imm, 0x7F000000, 0x11000000) |
| __AARCH64_INSN_FUNCS(adds_imm, 0x7F000000, 0x31000000) |
| __AARCH64_INSN_FUNCS(sub_imm, 0x7F000000, 0x51000000) |
| __AARCH64_INSN_FUNCS(subs_imm, 0x7F000000, 0x71000000) |
| __AARCH64_INSN_FUNCS(movn, 0x7F800000, 0x12800000) |
| __AARCH64_INSN_FUNCS(sbfm, 0x7F800000, 0x13000000) |
| __AARCH64_INSN_FUNCS(bfm, 0x7F800000, 0x33000000) |
| __AARCH64_INSN_FUNCS(movz, 0x7F800000, 0x52800000) |
| __AARCH64_INSN_FUNCS(ubfm, 0x7F800000, 0x53000000) |
| __AARCH64_INSN_FUNCS(movk, 0x7F800000, 0x72800000) |
| __AARCH64_INSN_FUNCS(add, 0x7F200000, 0x0B000000) |
| __AARCH64_INSN_FUNCS(adds, 0x7F200000, 0x2B000000) |
| __AARCH64_INSN_FUNCS(sub, 0x7F200000, 0x4B000000) |
| __AARCH64_INSN_FUNCS(subs, 0x7F200000, 0x6B000000) |
| __AARCH64_INSN_FUNCS(madd, 0x7FE08000, 0x1B000000) |
| __AARCH64_INSN_FUNCS(msub, 0x7FE08000, 0x1B008000) |
| __AARCH64_INSN_FUNCS(udiv, 0x7FE0FC00, 0x1AC00800) |
| __AARCH64_INSN_FUNCS(sdiv, 0x7FE0FC00, 0x1AC00C00) |
| __AARCH64_INSN_FUNCS(lslv, 0x7FE0FC00, 0x1AC02000) |
| __AARCH64_INSN_FUNCS(lsrv, 0x7FE0FC00, 0x1AC02400) |
| __AARCH64_INSN_FUNCS(asrv, 0x7FE0FC00, 0x1AC02800) |
| __AARCH64_INSN_FUNCS(rorv, 0x7FE0FC00, 0x1AC02C00) |
| __AARCH64_INSN_FUNCS(rev16, 0x7FFFFC00, 0x5AC00400) |
| __AARCH64_INSN_FUNCS(rev32, 0x7FFFFC00, 0x5AC00800) |
| __AARCH64_INSN_FUNCS(rev64, 0x7FFFFC00, 0x5AC00C00) |
| __AARCH64_INSN_FUNCS(and, 0x7F200000, 0x0A000000) |
| __AARCH64_INSN_FUNCS(bic, 0x7F200000, 0x0A200000) |
| __AARCH64_INSN_FUNCS(orr, 0x7F200000, 0x2A000000) |
| __AARCH64_INSN_FUNCS(orn, 0x7F200000, 0x2A200000) |
| __AARCH64_INSN_FUNCS(eor, 0x7F200000, 0x4A000000) |
| __AARCH64_INSN_FUNCS(eon, 0x7F200000, 0x4A200000) |
| __AARCH64_INSN_FUNCS(ands, 0x7F200000, 0x6A000000) |
| __AARCH64_INSN_FUNCS(bics, 0x7F200000, 0x6A200000) |
| __AARCH64_INSN_FUNCS(b, 0xFC000000, 0x14000000) |
| __AARCH64_INSN_FUNCS(bl, 0xFC000000, 0x94000000) |
| __AARCH64_INSN_FUNCS(cbz, 0x7F000000, 0x34000000) |
| __AARCH64_INSN_FUNCS(cbnz, 0x7F000000, 0x35000000) |
| __AARCH64_INSN_FUNCS(tbz, 0x7F000000, 0x36000000) |
| __AARCH64_INSN_FUNCS(tbnz, 0x7F000000, 0x37000000) |
| __AARCH64_INSN_FUNCS(bcond, 0xFF000010, 0x54000000) |
| __AARCH64_INSN_FUNCS(svc, 0xFFE0001F, 0xD4000001) |
| __AARCH64_INSN_FUNCS(hvc, 0xFFE0001F, 0xD4000002) |
| __AARCH64_INSN_FUNCS(smc, 0xFFE0001F, 0xD4000003) |
| __AARCH64_INSN_FUNCS(brk, 0xFFE0001F, 0xD4200000) |
| __AARCH64_INSN_FUNCS(hint, 0xFFFFF01F, 0xD503201F) |
| __AARCH64_INSN_FUNCS(br, 0xFFFFFC1F, 0xD61F0000) |
| __AARCH64_INSN_FUNCS(blr, 0xFFFFFC1F, 0xD63F0000) |
| __AARCH64_INSN_FUNCS(ret, 0xFFFFFC1F, 0xD65F0000) |
| |
| #undef __AARCH64_INSN_FUNCS |
| |
| bool aarch64_insn_is_nop(u32 insn); |
| bool aarch64_insn_is_branch_imm(u32 insn); |
| |
| int aarch64_insn_read(void *addr, u32 *insnp); |
| int aarch64_insn_write(void *addr, u32 insn); |
| enum aarch64_insn_encoding_class aarch64_get_insn_class(u32 insn); |
| u64 aarch64_insn_decode_immediate(enum aarch64_insn_imm_type type, 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_comp_branch_imm(unsigned long pc, unsigned long addr, |
| enum aarch64_insn_register reg, |
| enum aarch64_insn_variant variant, |
| enum aarch64_insn_branch_type type); |
| u32 aarch64_insn_gen_cond_branch_imm(unsigned long pc, unsigned long addr, |
| enum aarch64_insn_condition cond); |
| u32 aarch64_insn_gen_hint(enum aarch64_insn_hint_op op); |
| u32 aarch64_insn_gen_nop(void); |
| u32 aarch64_insn_gen_branch_reg(enum aarch64_insn_register reg, |
| enum aarch64_insn_branch_type type); |
| u32 aarch64_insn_gen_load_store_reg(enum aarch64_insn_register reg, |
| enum aarch64_insn_register base, |
| enum aarch64_insn_register offset, |
| enum aarch64_insn_size_type size, |
| enum aarch64_insn_ldst_type type); |
| u32 aarch64_insn_gen_load_store_pair(enum aarch64_insn_register reg1, |
| enum aarch64_insn_register reg2, |
| enum aarch64_insn_register base, |
| int offset, |
| enum aarch64_insn_variant variant, |
| enum aarch64_insn_ldst_type type); |
| u32 aarch64_insn_gen_add_sub_imm(enum aarch64_insn_register dst, |
| enum aarch64_insn_register src, |
| int imm, enum aarch64_insn_variant variant, |
| enum aarch64_insn_adsb_type type); |
| u32 aarch64_insn_gen_bitfield(enum aarch64_insn_register dst, |
| enum aarch64_insn_register src, |
| int immr, int imms, |
| enum aarch64_insn_variant variant, |
| enum aarch64_insn_bitfield_type type); |
| u32 aarch64_insn_gen_movewide(enum aarch64_insn_register dst, |
| int imm, int shift, |
| enum aarch64_insn_variant variant, |
| enum aarch64_insn_movewide_type type); |
| u32 aarch64_insn_gen_add_sub_shifted_reg(enum aarch64_insn_register dst, |
| enum aarch64_insn_register src, |
| enum aarch64_insn_register reg, |
| int shift, |
| enum aarch64_insn_variant variant, |
| enum aarch64_insn_adsb_type type); |
| u32 aarch64_insn_gen_data1(enum aarch64_insn_register dst, |
| enum aarch64_insn_register src, |
| enum aarch64_insn_variant variant, |
| enum aarch64_insn_data1_type type); |
| u32 aarch64_insn_gen_data2(enum aarch64_insn_register dst, |
| enum aarch64_insn_register src, |
| enum aarch64_insn_register reg, |
| enum aarch64_insn_variant variant, |
| enum aarch64_insn_data2_type type); |
| u32 aarch64_insn_gen_data3(enum aarch64_insn_register dst, |
| enum aarch64_insn_register src, |
| enum aarch64_insn_register reg1, |
| enum aarch64_insn_register reg2, |
| enum aarch64_insn_variant variant, |
| enum aarch64_insn_data3_type type); |
| u32 aarch64_insn_gen_logical_shifted_reg(enum aarch64_insn_register dst, |
| enum aarch64_insn_register src, |
| enum aarch64_insn_register reg, |
| int shift, |
| enum aarch64_insn_variant variant, |
| enum aarch64_insn_logic_type type); |
| s32 aarch64_get_branch_offset(u32 insn); |
| u32 aarch64_set_branch_offset(u32 insn, s32 offset); |
| |
| bool aarch64_insn_hotpatch_safe(u32 old_insn, u32 new_insn); |
| |
| int aarch64_insn_patch_text_nosync(void *addr, u32 insn); |
| int aarch64_insn_patch_text_sync(void *addrs[], u32 insns[], int cnt); |
| int aarch64_insn_patch_text(void *addrs[], u32 insns[], int cnt); |
| |
| bool aarch32_insn_is_wide(u32 insn); |
| |
| #define A32_RN_OFFSET 16 |
| #define A32_RT_OFFSET 12 |
| #define A32_RT2_OFFSET 0 |
| |
| u32 aarch32_insn_extract_reg_num(u32 insn, int offset); |
| u32 aarch32_insn_mcr_extract_opc2(u32 insn); |
| u32 aarch32_insn_mcr_extract_crm(u32 insn); |
| #endif /* __ASSEMBLY__ */ |
| |
| #endif /* __ASM_INSN_H */ |
