/* * Copyright (C) 2016-2017 Netronome Systems, Inc. * * This software is dual licensed under the GNU General License Version 2, * June 1991 as shown in the file COPYING in the top-level directory of this * source tree or the BSD 2-Clause License provided below. You have the * option to license this software under the complete terms of either license. * * The BSD 2-Clause License: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * 1. Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * 2. Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef __NFP_ASM_H__ #define __NFP_ASM_H__ 1 #include #include #include #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 nfp_is_br(_insn) \ (((_insn) & OP_BR_BASE_MASK) == OP_BR_BASE) enum br_mask { BR_BEQ = 0x00, BR_BNE = 0x01, BR_BMI = 0x02, BR_BHS = 0x04, 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, }; 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_SUB_C = 0x0d, 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_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_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 /* 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; } #endif