| /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ |
| /* Copyright (C) 2016-2018 Netronome Systems, Inc. */ |
| |
| #ifndef __NFP_ASM_H__ |
| #define __NFP_ASM_H__ 1 |
| |
| #include <linux/bitfield.h> |
| #include <linux/bug.h> |
| #include <linux/types.h> |
| |
| #define REG_NONE 0 |
| #define REG_WIDTH 4 |
| |
| #define RE_REG_NO_DST 0x020 |
| #define RE_REG_IMM 0x020 |
| #define RE_REG_IMM_encode(x) \ |
| (RE_REG_IMM | ((x) & 0x1f) | (((x) & 0x60) << 1)) |
| #define RE_REG_IMM_MAX 0x07fULL |
| #define RE_REG_LM 0x050 |
| #define RE_REG_LM_IDX 0x008 |
| #define RE_REG_LM_IDX_MAX 0x7 |
| #define RE_REG_XFR 0x080 |
| |
| #define UR_REG_XFR 0x180 |
| #define UR_REG_LM 0x200 |
| #define UR_REG_LM_IDX 0x020 |
| #define UR_REG_LM_POST_MOD 0x010 |
| #define UR_REG_LM_POST_MOD_DEC 0x001 |
| #define UR_REG_LM_IDX_MAX 0xf |
| #define UR_REG_NN 0x280 |
| #define UR_REG_NO_DST 0x300 |
| #define UR_REG_IMM UR_REG_NO_DST |
| #define UR_REG_IMM_encode(x) (UR_REG_IMM | (x)) |
| #define UR_REG_IMM_MAX 0x0ffULL |
| |
| #define OP_BR_BASE 0x0d800000020ULL |
| #define OP_BR_BASE_MASK 0x0f8000c3ce0ULL |
| #define OP_BR_MASK 0x0000000001fULL |
| #define OP_BR_EV_PIP 0x00000000300ULL |
| #define OP_BR_CSS 0x0000003c000ULL |
| #define OP_BR_DEFBR 0x00000300000ULL |
| #define OP_BR_ADDR_LO 0x007ffc00000ULL |
| #define OP_BR_ADDR_HI 0x10000000000ULL |
| |
| #define OP_BR_BIT_BASE 0x0d000000000ULL |
| #define OP_BR_BIT_BASE_MASK 0x0f800080300ULL |
| #define OP_BR_BIT_A_SRC 0x000000000ffULL |
| #define OP_BR_BIT_B_SRC 0x0000003fc00ULL |
| #define OP_BR_BIT_BV 0x00000040000ULL |
| #define OP_BR_BIT_SRC_LMEXTN 0x40000000000ULL |
| #define OP_BR_BIT_DEFBR OP_BR_DEFBR |
| #define OP_BR_BIT_ADDR_LO OP_BR_ADDR_LO |
| #define OP_BR_BIT_ADDR_HI OP_BR_ADDR_HI |
| |
| #define OP_BR_ALU_BASE 0x0e800000000ULL |
| #define OP_BR_ALU_BASE_MASK 0x0ff80000000ULL |
| #define OP_BR_ALU_A_SRC 0x000000003ffULL |
| #define OP_BR_ALU_B_SRC 0x000000ffc00ULL |
| #define OP_BR_ALU_DEFBR 0x00000300000ULL |
| #define OP_BR_ALU_IMM_HI 0x0007fc00000ULL |
| #define OP_BR_ALU_SRC_LMEXTN 0x40000000000ULL |
| #define OP_BR_ALU_DST_LMEXTN 0x80000000000ULL |
| |
| static inline bool nfp_is_br(u64 insn) |
| { |
| return (insn & OP_BR_BASE_MASK) == OP_BR_BASE || |
| (insn & OP_BR_BIT_BASE_MASK) == OP_BR_BIT_BASE; |
| } |
| |
| enum br_mask { |
| BR_BEQ = 0x00, |
| BR_BNE = 0x01, |
| BR_BMI = 0x02, |
| BR_BHS = 0x04, |
| BR_BCC = 0x05, |
| BR_BLO = 0x05, |
| BR_BGE = 0x08, |
| BR_BLT = 0x09, |
| BR_UNC = 0x18, |
| }; |
| |
| enum br_ev_pip { |
| BR_EV_PIP_UNCOND = 0, |
| BR_EV_PIP_COND = 1, |
| }; |
| |
| enum br_ctx_signal_state { |
| BR_CSS_NONE = 2, |
| }; |
| |
| u16 br_get_offset(u64 instr); |
| void br_set_offset(u64 *instr, u16 offset); |
| void br_add_offset(u64 *instr, u16 offset); |
| |
| #define OP_BBYTE_BASE 0x0c800000000ULL |
| #define OP_BB_A_SRC 0x000000000ffULL |
| #define OP_BB_BYTE 0x00000000300ULL |
| #define OP_BB_B_SRC 0x0000003fc00ULL |
| #define OP_BB_I8 0x00000040000ULL |
| #define OP_BB_EQ 0x00000080000ULL |
| #define OP_BB_DEFBR 0x00000300000ULL |
| #define OP_BB_ADDR_LO 0x007ffc00000ULL |
| #define OP_BB_ADDR_HI 0x10000000000ULL |
| #define OP_BB_SRC_LMEXTN 0x40000000000ULL |
| |
| #define OP_BALU_BASE 0x0e800000000ULL |
| #define OP_BA_A_SRC 0x000000003ffULL |
| #define OP_BA_B_SRC 0x000000ffc00ULL |
| #define OP_BA_DEFBR 0x00000300000ULL |
| #define OP_BA_ADDR_HI 0x0007fc00000ULL |
| |
| #define OP_IMMED_A_SRC 0x000000003ffULL |
| #define OP_IMMED_B_SRC 0x000000ffc00ULL |
| #define OP_IMMED_IMM 0x0000ff00000ULL |
| #define OP_IMMED_WIDTH 0x00060000000ULL |
| #define OP_IMMED_INV 0x00080000000ULL |
| #define OP_IMMED_SHIFT 0x00600000000ULL |
| #define OP_IMMED_BASE 0x0f000000000ULL |
| #define OP_IMMED_WR_AB 0x20000000000ULL |
| #define OP_IMMED_SRC_LMEXTN 0x40000000000ULL |
| #define OP_IMMED_DST_LMEXTN 0x80000000000ULL |
| |
| enum immed_width { |
| IMMED_WIDTH_ALL = 0, |
| IMMED_WIDTH_BYTE = 1, |
| IMMED_WIDTH_WORD = 2, |
| }; |
| |
| enum immed_shift { |
| IMMED_SHIFT_0B = 0, |
| IMMED_SHIFT_1B = 1, |
| IMMED_SHIFT_2B = 2, |
| }; |
| |
| u16 immed_get_value(u64 instr); |
| void immed_set_value(u64 *instr, u16 immed); |
| void immed_add_value(u64 *instr, u16 offset); |
| |
| #define OP_SHF_BASE 0x08000000000ULL |
| #define OP_SHF_A_SRC 0x000000000ffULL |
| #define OP_SHF_SC 0x00000000300ULL |
| #define OP_SHF_B_SRC 0x0000003fc00ULL |
| #define OP_SHF_I8 0x00000040000ULL |
| #define OP_SHF_SW 0x00000080000ULL |
| #define OP_SHF_DST 0x0000ff00000ULL |
| #define OP_SHF_SHIFT 0x001f0000000ULL |
| #define OP_SHF_OP 0x00e00000000ULL |
| #define OP_SHF_DST_AB 0x01000000000ULL |
| #define OP_SHF_WR_AB 0x20000000000ULL |
| #define OP_SHF_SRC_LMEXTN 0x40000000000ULL |
| #define OP_SHF_DST_LMEXTN 0x80000000000ULL |
| |
| enum shf_op { |
| SHF_OP_NONE = 0, |
| SHF_OP_AND = 2, |
| SHF_OP_OR = 5, |
| SHF_OP_ASHR = 6, |
| }; |
| |
| enum shf_sc { |
| SHF_SC_R_ROT = 0, |
| SHF_SC_NONE = SHF_SC_R_ROT, |
| SHF_SC_R_SHF = 1, |
| SHF_SC_L_SHF = 2, |
| SHF_SC_R_DSHF = 3, |
| }; |
| |
| #define OP_ALU_A_SRC 0x000000003ffULL |
| #define OP_ALU_B_SRC 0x000000ffc00ULL |
| #define OP_ALU_DST 0x0003ff00000ULL |
| #define OP_ALU_SW 0x00040000000ULL |
| #define OP_ALU_OP 0x00f80000000ULL |
| #define OP_ALU_DST_AB 0x01000000000ULL |
| #define OP_ALU_BASE 0x0a000000000ULL |
| #define OP_ALU_WR_AB 0x20000000000ULL |
| #define OP_ALU_SRC_LMEXTN 0x40000000000ULL |
| #define OP_ALU_DST_LMEXTN 0x80000000000ULL |
| |
| enum alu_op { |
| ALU_OP_NONE = 0x00, |
| ALU_OP_ADD = 0x01, |
| ALU_OP_NOT = 0x04, |
| ALU_OP_ADD_2B = 0x05, |
| ALU_OP_AND = 0x08, |
| ALU_OP_AND_NOT_A = 0x0c, |
| ALU_OP_SUB_C = 0x0d, |
| ALU_OP_AND_NOT_B = 0x10, |
| ALU_OP_ADD_C = 0x11, |
| ALU_OP_OR = 0x14, |
| ALU_OP_SUB = 0x15, |
| ALU_OP_XOR = 0x18, |
| }; |
| |
| enum alu_dst_ab { |
| ALU_DST_A = 0, |
| ALU_DST_B = 1, |
| }; |
| |
| #define OP_LDF_BASE 0x0c000000000ULL |
| #define OP_LDF_A_SRC 0x000000000ffULL |
| #define OP_LDF_SC 0x00000000300ULL |
| #define OP_LDF_B_SRC 0x0000003fc00ULL |
| #define OP_LDF_I8 0x00000040000ULL |
| #define OP_LDF_SW 0x00000080000ULL |
| #define OP_LDF_ZF 0x00000100000ULL |
| #define OP_LDF_BMASK 0x0000f000000ULL |
| #define OP_LDF_SHF 0x001f0000000ULL |
| #define OP_LDF_WR_AB 0x20000000000ULL |
| #define OP_LDF_SRC_LMEXTN 0x40000000000ULL |
| #define OP_LDF_DST_LMEXTN 0x80000000000ULL |
| |
| #define OP_CMD_A_SRC 0x000000000ffULL |
| #define OP_CMD_CTX 0x00000000300ULL |
| #define OP_CMD_B_SRC 0x0000003fc00ULL |
| #define OP_CMD_TOKEN 0x000000c0000ULL |
| #define OP_CMD_XFER 0x00001f00000ULL |
| #define OP_CMD_CNT 0x0000e000000ULL |
| #define OP_CMD_SIG 0x000f0000000ULL |
| #define OP_CMD_TGT_CMD 0x07f00000000ULL |
| #define OP_CMD_INDIR 0x20000000000ULL |
| #define OP_CMD_MODE 0x1c0000000000ULL |
| |
| struct cmd_tgt_act { |
| u8 token; |
| u8 tgt_cmd; |
| }; |
| |
| enum cmd_tgt_map { |
| CMD_TGT_READ8, |
| CMD_TGT_WRITE8_SWAP, |
| CMD_TGT_WRITE32_SWAP, |
| CMD_TGT_READ32, |
| CMD_TGT_READ32_LE, |
| CMD_TGT_READ32_SWAP, |
| CMD_TGT_READ_LE, |
| CMD_TGT_READ_SWAP_LE, |
| CMD_TGT_ADD, |
| CMD_TGT_ADD_IMM, |
| __CMD_TGT_MAP_SIZE, |
| }; |
| |
| extern const struct cmd_tgt_act cmd_tgt_act[__CMD_TGT_MAP_SIZE]; |
| |
| enum cmd_mode { |
| CMD_MODE_40b_AB = 0, |
| CMD_MODE_40b_BA = 1, |
| CMD_MODE_32b = 4, |
| }; |
| |
| enum cmd_ctx_swap { |
| CMD_CTX_SWAP = 0, |
| CMD_CTX_SWAP_DEFER1 = 1, |
| CMD_CTX_SWAP_DEFER2 = 2, |
| CMD_CTX_NO_SWAP = 3, |
| }; |
| |
| #define CMD_OVE_DATA GENMASK(5, 3) |
| #define CMD_OVE_LEN BIT(7) |
| #define CMD_OV_LEN GENMASK(12, 8) |
| |
| #define OP_LCSR_BASE 0x0fc00000000ULL |
| #define OP_LCSR_A_SRC 0x000000003ffULL |
| #define OP_LCSR_B_SRC 0x000000ffc00ULL |
| #define OP_LCSR_WRITE 0x00000200000ULL |
| #define OP_LCSR_ADDR 0x001ffc00000ULL |
| #define OP_LCSR_SRC_LMEXTN 0x40000000000ULL |
| #define OP_LCSR_DST_LMEXTN 0x80000000000ULL |
| |
| enum lcsr_wr_src { |
| LCSR_WR_AREG, |
| LCSR_WR_BREG, |
| LCSR_WR_IMM, |
| }; |
| |
| #define OP_CARB_BASE 0x0e000000000ULL |
| #define OP_CARB_OR 0x00000010000ULL |
| |
| #define NFP_CSR_CTX_PTR 0x20 |
| #define NFP_CSR_ACT_LM_ADDR0 0x64 |
| #define NFP_CSR_ACT_LM_ADDR1 0x6c |
| #define NFP_CSR_ACT_LM_ADDR2 0x94 |
| #define NFP_CSR_ACT_LM_ADDR3 0x9c |
| #define NFP_CSR_PSEUDO_RND_NUM 0x148 |
| |
| /* Software register representation, independent of operand type */ |
| #define NN_REG_TYPE GENMASK(31, 24) |
| #define NN_REG_LM_IDX GENMASK(23, 22) |
| #define NN_REG_LM_IDX_HI BIT(23) |
| #define NN_REG_LM_IDX_LO BIT(22) |
| #define NN_REG_LM_MOD GENMASK(21, 20) |
| #define NN_REG_VAL GENMASK(7, 0) |
| |
| enum nfp_bpf_reg_type { |
| NN_REG_GPR_A = BIT(0), |
| NN_REG_GPR_B = BIT(1), |
| NN_REG_GPR_BOTH = NN_REG_GPR_A | NN_REG_GPR_B, |
| NN_REG_NNR = BIT(2), |
| NN_REG_XFER = BIT(3), |
| NN_REG_IMM = BIT(4), |
| NN_REG_NONE = BIT(5), |
| NN_REG_LMEM = BIT(6), |
| }; |
| |
| enum nfp_bpf_lm_mode { |
| NN_LM_MOD_NONE = 0, |
| NN_LM_MOD_INC, |
| NN_LM_MOD_DEC, |
| }; |
| |
| #define reg_both(x) __enc_swreg((x), NN_REG_GPR_BOTH) |
| #define reg_a(x) __enc_swreg((x), NN_REG_GPR_A) |
| #define reg_b(x) __enc_swreg((x), NN_REG_GPR_B) |
| #define reg_nnr(x) __enc_swreg((x), NN_REG_NNR) |
| #define reg_xfer(x) __enc_swreg((x), NN_REG_XFER) |
| #define reg_imm(x) __enc_swreg((x), NN_REG_IMM) |
| #define reg_none() __enc_swreg(0, NN_REG_NONE) |
| #define reg_lm(x, off) __enc_swreg_lm((x), NN_LM_MOD_NONE, (off)) |
| #define reg_lm_inc(x) __enc_swreg_lm((x), NN_LM_MOD_INC, 0) |
| #define reg_lm_dec(x) __enc_swreg_lm((x), NN_LM_MOD_DEC, 0) |
| #define __reg_lm(x, mod, off) __enc_swreg_lm((x), (mod), (off)) |
| |
| typedef __u32 __bitwise swreg; |
| |
| static inline swreg __enc_swreg(u16 id, u8 type) |
| { |
| return (__force swreg)(id | FIELD_PREP(NN_REG_TYPE, type)); |
| } |
| |
| static inline swreg __enc_swreg_lm(u8 id, enum nfp_bpf_lm_mode mode, u8 off) |
| { |
| WARN_ON(id > 3 || (off && mode != NN_LM_MOD_NONE)); |
| |
| return (__force swreg)(FIELD_PREP(NN_REG_TYPE, NN_REG_LMEM) | |
| FIELD_PREP(NN_REG_LM_IDX, id) | |
| FIELD_PREP(NN_REG_LM_MOD, mode) | |
| off); |
| } |
| |
| static inline u32 swreg_raw(swreg reg) |
| { |
| return (__force u32)reg; |
| } |
| |
| static inline enum nfp_bpf_reg_type swreg_type(swreg reg) |
| { |
| return FIELD_GET(NN_REG_TYPE, swreg_raw(reg)); |
| } |
| |
| static inline u16 swreg_value(swreg reg) |
| { |
| return FIELD_GET(NN_REG_VAL, swreg_raw(reg)); |
| } |
| |
| static inline bool swreg_lm_idx(swreg reg) |
| { |
| return FIELD_GET(NN_REG_LM_IDX_LO, swreg_raw(reg)); |
| } |
| |
| static inline bool swreg_lmextn(swreg reg) |
| { |
| return FIELD_GET(NN_REG_LM_IDX_HI, swreg_raw(reg)); |
| } |
| |
| static inline enum nfp_bpf_lm_mode swreg_lm_mode(swreg reg) |
| { |
| return FIELD_GET(NN_REG_LM_MOD, swreg_raw(reg)); |
| } |
| |
| struct nfp_insn_ur_regs { |
| enum alu_dst_ab dst_ab; |
| u16 dst; |
| u16 areg, breg; |
| bool swap; |
| bool wr_both; |
| bool dst_lmextn; |
| bool src_lmextn; |
| }; |
| |
| struct nfp_insn_re_regs { |
| enum alu_dst_ab dst_ab; |
| u8 dst; |
| u8 areg, breg; |
| bool swap; |
| bool wr_both; |
| bool i8; |
| bool dst_lmextn; |
| bool src_lmextn; |
| }; |
| |
| int swreg_to_unrestricted(swreg dst, swreg lreg, swreg rreg, |
| struct nfp_insn_ur_regs *reg); |
| int swreg_to_restricted(swreg dst, swreg lreg, swreg rreg, |
| struct nfp_insn_re_regs *reg, bool has_imm8); |
| |
| #define NFP_USTORE_PREFETCH_WINDOW 8 |
| |
| int nfp_ustore_check_valid_no_ecc(u64 insn); |
| u64 nfp_ustore_calc_ecc_insn(u64 insn); |
| |
| #define NFP_IND_ME_REFL_WR_SIG_INIT 3 |
| #define NFP_IND_ME_CTX_PTR_BASE_MASK GENMASK(9, 0) |
| #define NFP_IND_NUM_CONTEXTS 8 |
| |
| static inline u32 nfp_get_ind_csr_ctx_ptr_offs(u32 read_offset) |
| { |
| return (read_offset & ~NFP_IND_ME_CTX_PTR_BASE_MASK) | NFP_CSR_CTX_PTR; |
| } |
| |
| enum mul_type { |
| MUL_TYPE_START = 0x00, |
| MUL_TYPE_STEP_24x8 = 0x01, |
| MUL_TYPE_STEP_16x16 = 0x02, |
| MUL_TYPE_STEP_32x32 = 0x03, |
| }; |
| |
| enum mul_step { |
| MUL_STEP_1 = 0x00, |
| MUL_STEP_NONE = MUL_STEP_1, |
| MUL_STEP_2 = 0x01, |
| MUL_STEP_3 = 0x02, |
| MUL_STEP_4 = 0x03, |
| MUL_LAST = 0x04, |
| MUL_LAST_2 = 0x05, |
| }; |
| |
| #define OP_MUL_BASE 0x0f800000000ULL |
| #define OP_MUL_A_SRC 0x000000003ffULL |
| #define OP_MUL_B_SRC 0x000000ffc00ULL |
| #define OP_MUL_STEP 0x00000700000ULL |
| #define OP_MUL_DST_AB 0x00000800000ULL |
| #define OP_MUL_SW 0x00040000000ULL |
| #define OP_MUL_TYPE 0x00180000000ULL |
| #define OP_MUL_WR_AB 0x20000000000ULL |
| #define OP_MUL_SRC_LMEXTN 0x40000000000ULL |
| #define OP_MUL_DST_LMEXTN 0x80000000000ULL |
| |
| #endif |
