drivers/accel/habanalabs/include/gaudi/gaudi_packets.h

   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[];
  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[]; /* 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 */