2 * Copyright (C) 2016-2017 Netronome Systems, Inc.
4 * This software is dual licensed under the GNU General License Version 2,
5 * June 1991 as shown in the file COPYING in the top-level directory of this
6 * source tree or the BSD 2-Clause License provided below. You have the
7 * option to license this software under the complete terms of either license.
9 * The BSD 2-Clause License:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * 1. Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
19 * 2. Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
35 #define __NFP_ASM_H__ 1
37 #include <linux/bitfield.h>
38 #include <linux/bug.h>
39 #include <linux/types.h>
44 #define RE_REG_NO_DST 0x020
45 #define RE_REG_IMM 0x020
46 #define RE_REG_IMM_encode(x) \
47 (RE_REG_IMM | ((x) & 0x1f) | (((x) & 0x60) << 1))
48 #define RE_REG_IMM_MAX 0x07fULL
49 #define RE_REG_LM 0x050
50 #define RE_REG_LM_IDX 0x008
51 #define RE_REG_LM_IDX_MAX 0x7
52 #define RE_REG_XFR 0x080
54 #define UR_REG_XFR 0x180
55 #define UR_REG_LM 0x200
56 #define UR_REG_LM_IDX 0x020
57 #define UR_REG_LM_POST_MOD 0x010
58 #define UR_REG_LM_POST_MOD_DEC 0x001
59 #define UR_REG_LM_IDX_MAX 0xf
60 #define UR_REG_NN 0x280
61 #define UR_REG_NO_DST 0x300
62 #define UR_REG_IMM UR_REG_NO_DST
63 #define UR_REG_IMM_encode(x) (UR_REG_IMM | (x))
64 #define UR_REG_IMM_MAX 0x0ffULL
66 #define OP_BR_BASE 0x0d800000020ULL
67 #define OP_BR_BASE_MASK 0x0f8000c3ce0ULL
68 #define OP_BR_MASK 0x0000000001fULL
69 #define OP_BR_EV_PIP 0x00000000300ULL
70 #define OP_BR_CSS 0x0000003c000ULL
71 #define OP_BR_DEFBR 0x00000300000ULL
72 #define OP_BR_ADDR_LO 0x007ffc00000ULL
73 #define OP_BR_ADDR_HI 0x10000000000ULL
75 #define OP_BR_BIT_BASE 0x0d000000000ULL
76 #define OP_BR_BIT_BASE_MASK 0x0f800080300ULL
77 #define OP_BR_BIT_A_SRC 0x000000000ffULL
78 #define OP_BR_BIT_B_SRC 0x0000003fc00ULL
79 #define OP_BR_BIT_BV 0x00000040000ULL
80 #define OP_BR_BIT_SRC_LMEXTN 0x40000000000ULL
81 #define OP_BR_BIT_DEFBR OP_BR_DEFBR
82 #define OP_BR_BIT_ADDR_LO OP_BR_ADDR_LO
83 #define OP_BR_BIT_ADDR_HI OP_BR_ADDR_HI
85 static inline bool nfp_is_br(u64 insn)
87 return (insn & OP_BR_BASE_MASK) == OP_BR_BASE ||
88 (insn & OP_BR_BIT_BASE_MASK) == OP_BR_BIT_BASE;
104 BR_EV_PIP_UNCOND = 0,
108 enum br_ctx_signal_state {
112 u16 br_get_offset(u64 instr);
113 void br_set_offset(u64 *instr, u16 offset);
114 void br_add_offset(u64 *instr, u16 offset);
116 #define OP_BBYTE_BASE 0x0c800000000ULL
117 #define OP_BB_A_SRC 0x000000000ffULL
118 #define OP_BB_BYTE 0x00000000300ULL
119 #define OP_BB_B_SRC 0x0000003fc00ULL
120 #define OP_BB_I8 0x00000040000ULL
121 #define OP_BB_EQ 0x00000080000ULL
122 #define OP_BB_DEFBR 0x00000300000ULL
123 #define OP_BB_ADDR_LO 0x007ffc00000ULL
124 #define OP_BB_ADDR_HI 0x10000000000ULL
125 #define OP_BB_SRC_LMEXTN 0x40000000000ULL
127 #define OP_BALU_BASE 0x0e800000000ULL
128 #define OP_BA_A_SRC 0x000000003ffULL
129 #define OP_BA_B_SRC 0x000000ffc00ULL
130 #define OP_BA_DEFBR 0x00000300000ULL
131 #define OP_BA_ADDR_HI 0x0007fc00000ULL
133 #define OP_IMMED_A_SRC 0x000000003ffULL
134 #define OP_IMMED_B_SRC 0x000000ffc00ULL
135 #define OP_IMMED_IMM 0x0000ff00000ULL
136 #define OP_IMMED_WIDTH 0x00060000000ULL
137 #define OP_IMMED_INV 0x00080000000ULL
138 #define OP_IMMED_SHIFT 0x00600000000ULL
139 #define OP_IMMED_BASE 0x0f000000000ULL
140 #define OP_IMMED_WR_AB 0x20000000000ULL
141 #define OP_IMMED_SRC_LMEXTN 0x40000000000ULL
142 #define OP_IMMED_DST_LMEXTN 0x80000000000ULL
146 IMMED_WIDTH_BYTE = 1,
147 IMMED_WIDTH_WORD = 2,
156 u16 immed_get_value(u64 instr);
157 void immed_set_value(u64 *instr, u16 immed);
158 void immed_add_value(u64 *instr, u16 offset);
160 #define OP_SHF_BASE 0x08000000000ULL
161 #define OP_SHF_A_SRC 0x000000000ffULL
162 #define OP_SHF_SC 0x00000000300ULL
163 #define OP_SHF_B_SRC 0x0000003fc00ULL
164 #define OP_SHF_I8 0x00000040000ULL
165 #define OP_SHF_SW 0x00000080000ULL
166 #define OP_SHF_DST 0x0000ff00000ULL
167 #define OP_SHF_SHIFT 0x001f0000000ULL
168 #define OP_SHF_OP 0x00e00000000ULL
169 #define OP_SHF_DST_AB 0x01000000000ULL
170 #define OP_SHF_WR_AB 0x20000000000ULL
171 #define OP_SHF_SRC_LMEXTN 0x40000000000ULL
172 #define OP_SHF_DST_LMEXTN 0x80000000000ULL
183 SHF_SC_NONE = SHF_SC_R_ROT,
189 #define OP_ALU_A_SRC 0x000000003ffULL
190 #define OP_ALU_B_SRC 0x000000ffc00ULL
191 #define OP_ALU_DST 0x0003ff00000ULL
192 #define OP_ALU_SW 0x00040000000ULL
193 #define OP_ALU_OP 0x00f80000000ULL
194 #define OP_ALU_DST_AB 0x01000000000ULL
195 #define OP_ALU_BASE 0x0a000000000ULL
196 #define OP_ALU_WR_AB 0x20000000000ULL
197 #define OP_ALU_SRC_LMEXTN 0x40000000000ULL
198 #define OP_ALU_DST_LMEXTN 0x80000000000ULL
204 ALU_OP_ADD_2B = 0x05,
206 ALU_OP_AND_NOT_A = 0x0c,
208 ALU_OP_AND_NOT_B = 0x10,
220 #define OP_LDF_BASE 0x0c000000000ULL
221 #define OP_LDF_A_SRC 0x000000000ffULL
222 #define OP_LDF_SC 0x00000000300ULL
223 #define OP_LDF_B_SRC 0x0000003fc00ULL
224 #define OP_LDF_I8 0x00000040000ULL
225 #define OP_LDF_SW 0x00000080000ULL
226 #define OP_LDF_ZF 0x00000100000ULL
227 #define OP_LDF_BMASK 0x0000f000000ULL
228 #define OP_LDF_SHF 0x001f0000000ULL
229 #define OP_LDF_WR_AB 0x20000000000ULL
230 #define OP_LDF_SRC_LMEXTN 0x40000000000ULL
231 #define OP_LDF_DST_LMEXTN 0x80000000000ULL
233 #define OP_CMD_A_SRC 0x000000000ffULL
234 #define OP_CMD_CTX 0x00000000300ULL
235 #define OP_CMD_B_SRC 0x0000003fc00ULL
236 #define OP_CMD_TOKEN 0x000000c0000ULL
237 #define OP_CMD_XFER 0x00001f00000ULL
238 #define OP_CMD_CNT 0x0000e000000ULL
239 #define OP_CMD_SIG 0x000f0000000ULL
240 #define OP_CMD_TGT_CMD 0x07f00000000ULL
241 #define OP_CMD_INDIR 0x20000000000ULL
242 #define OP_CMD_MODE 0x1c0000000000ULL
252 CMD_TGT_WRITE32_SWAP,
257 CMD_TGT_READ_SWAP_LE,
263 extern const struct cmd_tgt_act cmd_tgt_act[__CMD_TGT_MAP_SIZE];
273 CMD_CTX_SWAP_DEFER1 = 1,
274 CMD_CTX_SWAP_DEFER2 = 2,
278 #define CMD_OVE_DATA GENMASK(5, 3)
279 #define CMD_OVE_LEN BIT(7)
280 #define CMD_OV_LEN GENMASK(12, 8)
282 #define OP_LCSR_BASE 0x0fc00000000ULL
283 #define OP_LCSR_A_SRC 0x000000003ffULL
284 #define OP_LCSR_B_SRC 0x000000ffc00ULL
285 #define OP_LCSR_WRITE 0x00000200000ULL
286 #define OP_LCSR_ADDR 0x001ffc00000ULL
287 #define OP_LCSR_SRC_LMEXTN 0x40000000000ULL
288 #define OP_LCSR_DST_LMEXTN 0x80000000000ULL
296 #define OP_CARB_BASE 0x0e000000000ULL
297 #define OP_CARB_OR 0x00000010000ULL
299 #define NFP_CSR_CTX_PTR 0x20
300 #define NFP_CSR_ACT_LM_ADDR0 0x64
301 #define NFP_CSR_ACT_LM_ADDR1 0x6c
302 #define NFP_CSR_ACT_LM_ADDR2 0x94
303 #define NFP_CSR_ACT_LM_ADDR3 0x9c
304 #define NFP_CSR_PSEUDO_RND_NUM 0x148
306 /* Software register representation, independent of operand type */
307 #define NN_REG_TYPE GENMASK(31, 24)
308 #define NN_REG_LM_IDX GENMASK(23, 22)
309 #define NN_REG_LM_IDX_HI BIT(23)
310 #define NN_REG_LM_IDX_LO BIT(22)
311 #define NN_REG_LM_MOD GENMASK(21, 20)
312 #define NN_REG_VAL GENMASK(7, 0)
314 enum nfp_bpf_reg_type {
315 NN_REG_GPR_A = BIT(0),
316 NN_REG_GPR_B = BIT(1),
317 NN_REG_GPR_BOTH = NN_REG_GPR_A | NN_REG_GPR_B,
319 NN_REG_XFER = BIT(3),
321 NN_REG_NONE = BIT(5),
322 NN_REG_LMEM = BIT(6),
325 enum nfp_bpf_lm_mode {
331 #define reg_both(x) __enc_swreg((x), NN_REG_GPR_BOTH)
332 #define reg_a(x) __enc_swreg((x), NN_REG_GPR_A)
333 #define reg_b(x) __enc_swreg((x), NN_REG_GPR_B)
334 #define reg_nnr(x) __enc_swreg((x), NN_REG_NNR)
335 #define reg_xfer(x) __enc_swreg((x), NN_REG_XFER)
336 #define reg_imm(x) __enc_swreg((x), NN_REG_IMM)
337 #define reg_none() __enc_swreg(0, NN_REG_NONE)
338 #define reg_lm(x, off) __enc_swreg_lm((x), NN_LM_MOD_NONE, (off))
339 #define reg_lm_inc(x) __enc_swreg_lm((x), NN_LM_MOD_INC, 0)
340 #define reg_lm_dec(x) __enc_swreg_lm((x), NN_LM_MOD_DEC, 0)
341 #define __reg_lm(x, mod, off) __enc_swreg_lm((x), (mod), (off))
343 typedef __u32 __bitwise swreg;
345 static inline swreg __enc_swreg(u16 id, u8 type)
347 return (__force swreg)(id | FIELD_PREP(NN_REG_TYPE, type));
350 static inline swreg __enc_swreg_lm(u8 id, enum nfp_bpf_lm_mode mode, u8 off)
352 WARN_ON(id > 3 || (off && mode != NN_LM_MOD_NONE));
354 return (__force swreg)(FIELD_PREP(NN_REG_TYPE, NN_REG_LMEM) |
355 FIELD_PREP(NN_REG_LM_IDX, id) |
356 FIELD_PREP(NN_REG_LM_MOD, mode) |
360 static inline u32 swreg_raw(swreg reg)
362 return (__force u32)reg;
365 static inline enum nfp_bpf_reg_type swreg_type(swreg reg)
367 return FIELD_GET(NN_REG_TYPE, swreg_raw(reg));
370 static inline u16 swreg_value(swreg reg)
372 return FIELD_GET(NN_REG_VAL, swreg_raw(reg));
375 static inline bool swreg_lm_idx(swreg reg)
377 return FIELD_GET(NN_REG_LM_IDX_LO, swreg_raw(reg));
380 static inline bool swreg_lmextn(swreg reg)
382 return FIELD_GET(NN_REG_LM_IDX_HI, swreg_raw(reg));
385 static inline enum nfp_bpf_lm_mode swreg_lm_mode(swreg reg)
387 return FIELD_GET(NN_REG_LM_MOD, swreg_raw(reg));
390 struct nfp_insn_ur_regs {
391 enum alu_dst_ab dst_ab;
400 struct nfp_insn_re_regs {
401 enum alu_dst_ab dst_ab;
411 int swreg_to_unrestricted(swreg dst, swreg lreg, swreg rreg,
412 struct nfp_insn_ur_regs *reg);
413 int swreg_to_restricted(swreg dst, swreg lreg, swreg rreg,
414 struct nfp_insn_re_regs *reg, bool has_imm8);
416 #define NFP_USTORE_PREFETCH_WINDOW 8
418 int nfp_ustore_check_valid_no_ecc(u64 insn);
419 u64 nfp_ustore_calc_ecc_insn(u64 insn);
421 #define NFP_IND_ME_REFL_WR_SIG_INIT 3
422 #define NFP_IND_ME_CTX_PTR_BASE_MASK GENMASK(9, 0)
423 #define NFP_IND_NUM_CONTEXTS 8
425 static inline u32 nfp_get_ind_csr_ctx_ptr_offs(u32 read_offset)
427 return (read_offset & ~NFP_IND_ME_CTX_PTR_BASE_MASK) | NFP_CSR_CTX_PTR;
431 MUL_TYPE_START = 0x00,
432 MUL_TYPE_STEP_24x8 = 0x01,
433 MUL_TYPE_STEP_16x16 = 0x02,
434 MUL_TYPE_STEP_32x32 = 0x03,
439 MUL_STEP_NONE = MUL_STEP_1,
447 #define OP_MUL_BASE 0x0f800000000ULL
448 #define OP_MUL_A_SRC 0x000000003ffULL
449 #define OP_MUL_B_SRC 0x000000ffc00ULL
450 #define OP_MUL_STEP 0x00000700000ULL
451 #define OP_MUL_DST_AB 0x00000800000ULL
452 #define OP_MUL_SW 0x00040000000ULL
453 #define OP_MUL_TYPE 0x00180000000ULL
454 #define OP_MUL_WR_AB 0x20000000000ULL
455 #define OP_MUL_SRC_LMEXTN 0x40000000000ULL
456 #define OP_MUL_DST_LMEXTN 0x80000000000ULL