1 /* SPDX-License-Identifier: GPL-2.0 2 * 3 * Copyright 2017-2020 HabanaLabs, Ltd. 4 * All Rights Reserved. 5 * 6 */ 7 8 #ifndef GAUDI_PACKETS_H 9 #define GAUDI_PACKETS_H 10 11 #include <linux/types.h> 12 13 #define PACKET_HEADER_PACKET_ID_SHIFT 56 14 #define PACKET_HEADER_PACKET_ID_MASK 0x1F00000000000000ull 15 16 enum packet_id { 17 PACKET_WREG_32 = 0x1, 18 PACKET_WREG_BULK = 0x2, 19 PACKET_MSG_LONG = 0x3, 20 PACKET_MSG_SHORT = 0x4, 21 PACKET_CP_DMA = 0x5, 22 PACKET_REPEAT = 0x6, 23 PACKET_MSG_PROT = 0x7, 24 PACKET_FENCE = 0x8, 25 PACKET_LIN_DMA = 0x9, 26 PACKET_NOP = 0xA, 27 PACKET_STOP = 0xB, 28 PACKET_ARB_POINT = 0xC, 29 PACKET_WAIT = 0xD, 30 PACKET_LOAD_AND_EXE = 0xF, 31 MAX_PACKET_ID = (PACKET_HEADER_PACKET_ID_MASK >> 32 PACKET_HEADER_PACKET_ID_SHIFT) + 1 33 }; 34 35 #define GAUDI_PKT_CTL_OPCODE_SHIFT 24 36 #define GAUDI_PKT_CTL_OPCODE_MASK 0x1F000000 37 38 #define GAUDI_PKT_CTL_EB_SHIFT 29 39 #define GAUDI_PKT_CTL_EB_MASK 0x20000000 40 41 #define GAUDI_PKT_CTL_RB_SHIFT 30 42 #define GAUDI_PKT_CTL_RB_MASK 0x40000000 43 44 #define GAUDI_PKT_CTL_MB_SHIFT 31 45 #define GAUDI_PKT_CTL_MB_MASK 0x80000000 46 47 /* All packets have, at least, an 8-byte header, which contains 48 * the packet type. The kernel driver uses the packet header for packet 49 * validation and to perform any necessary required preparation before 50 * sending them off to the hardware. 51 */ 52 struct gaudi_packet { 53 __le64 header; 54 /* The rest of the packet data follows. Use the corresponding 55 * packet_XXX struct to deference the data, based on packet type 56 */ 57 u8 contents[0]; 58 }; 59 60 struct packet_nop { 61 __le32 reserved; 62 __le32 ctl; 63 }; 64 65 struct packet_stop { 66 __le32 reserved; 67 __le32 ctl; 68 }; 69 70 struct packet_wreg32 { 71 __le32 value; 72 __le32 ctl; 73 }; 74 75 struct packet_wreg_bulk { 76 __le32 size64; 77 __le32 ctl; 78 __le64 values[0]; /* data starts here */ 79 }; 80 81 #define GAUDI_PKT_LONG_CTL_OP_SHIFT 20 82 #define GAUDI_PKT_LONG_CTL_OP_MASK 0x00300000 83 84 struct packet_msg_long { 85 __le32 value; 86 __le32 ctl; 87 __le64 addr; 88 }; 89 90 #define GAUDI_PKT_SHORT_VAL_SOB_SYNC_VAL_SHIFT 0 91 #define GAUDI_PKT_SHORT_VAL_SOB_SYNC_VAL_MASK 0x00007FFF 92 93 #define GAUDI_PKT_SHORT_VAL_SOB_MOD_SHIFT 31 94 #define GAUDI_PKT_SHORT_VAL_SOB_MOD_MASK 0x80000000 95 96 #define GAUDI_PKT_SHORT_VAL_MON_SYNC_GID_SHIFT 0 97 #define GAUDI_PKT_SHORT_VAL_MON_SYNC_GID_MASK 0x000000FF 98 99 #define GAUDI_PKT_SHORT_VAL_MON_MASK_SHIFT 8 100 #define GAUDI_PKT_SHORT_VAL_MON_MASK_MASK 0x0000FF00 101 102 #define GAUDI_PKT_SHORT_VAL_MON_MODE_SHIFT 16 103 #define GAUDI_PKT_SHORT_VAL_MON_MODE_MASK 0x00010000 104 105 #define GAUDI_PKT_SHORT_VAL_MON_SYNC_VAL_SHIFT 17 106 #define GAUDI_PKT_SHORT_VAL_MON_SYNC_VAL_MASK 0xFFFE0000 107 108 #define GAUDI_PKT_SHORT_CTL_ADDR_SHIFT 0 109 #define GAUDI_PKT_SHORT_CTL_ADDR_MASK 0x0000FFFF 110 111 #define GAUDI_PKT_SHORT_CTL_OP_SHIFT 20 112 #define GAUDI_PKT_SHORT_CTL_OP_MASK 0x00300000 113 114 #define GAUDI_PKT_SHORT_CTL_BASE_SHIFT 22 115 #define GAUDI_PKT_SHORT_CTL_BASE_MASK 0x00C00000 116 117 struct packet_msg_short { 118 __le32 value; 119 __le32 ctl; 120 }; 121 122 struct packet_msg_prot { 123 __le32 value; 124 __le32 ctl; 125 __le64 addr; 126 }; 127 128 #define GAUDI_PKT_FENCE_CFG_DEC_VAL_SHIFT 0 129 #define GAUDI_PKT_FENCE_CFG_DEC_VAL_MASK 0x0000000F 130 131 #define GAUDI_PKT_FENCE_CFG_TARGET_VAL_SHIFT 16 132 #define GAUDI_PKT_FENCE_CFG_TARGET_VAL_MASK 0x00FF0000 133 134 #define GAUDI_PKT_FENCE_CFG_ID_SHIFT 30 135 #define GAUDI_PKT_FENCE_CFG_ID_MASK 0xC0000000 136 137 #define GAUDI_PKT_FENCE_CTL_PRED_SHIFT 0 138 #define GAUDI_PKT_FENCE_CTL_PRED_MASK 0x0000001F 139 140 struct packet_fence { 141 __le32 cfg; 142 __le32 ctl; 143 }; 144 145 #define GAUDI_PKT_LIN_DMA_CTL_WRCOMP_EN_SHIFT 0 146 #define GAUDI_PKT_LIN_DMA_CTL_WRCOMP_EN_MASK 0x00000001 147 148 #define GAUDI_PKT_LIN_DMA_CTL_LIN_SHIFT 3 149 #define GAUDI_PKT_LIN_DMA_CTL_LIN_MASK 0x00000008 150 151 #define GAUDI_PKT_LIN_DMA_CTL_MEMSET_SHIFT 4 152 #define GAUDI_PKT_LIN_DMA_CTL_MEMSET_MASK 0x00000010 153 154 #define GAUDI_PKT_LIN_DMA_DST_ADDR_SHIFT 0 155 #define GAUDI_PKT_LIN_DMA_DST_ADDR_MASK 0x00FFFFFFFFFFFFFFull 156 157 struct packet_lin_dma { 158 __le32 tsize; 159 __le32 ctl; 160 __le64 src_addr; 161 __le64 dst_addr; 162 }; 163 164 struct packet_arb_point { 165 __le32 cfg; 166 __le32 ctl; 167 }; 168 169 struct packet_repeat { 170 __le32 cfg; 171 __le32 ctl; 172 }; 173 174 struct packet_wait { 175 __le32 cfg; 176 __le32 ctl; 177 }; 178 179 #define GAUDI_PKT_LOAD_AND_EXE_CFG_DST_SHIFT 0 180 #define GAUDI_PKT_LOAD_AND_EXE_CFG_DST_MASK 0x00000001 181 182 struct packet_load_and_exe { 183 __le32 cfg; 184 __le32 ctl; 185 __le64 src_addr; 186 }; 187 188 struct packet_cp_dma { 189 __le32 tsize; 190 __le32 ctl; 191 __le64 src_addr; 192 }; 193 194 #endif /* GAUDI_PACKETS_H */ 195