summaryrefslogtreecommitdiffstats
path: root/drivers/misc/habanalabs/include/gaudi/gaudi_packets.h
blob: f30f2c0458d7a30cbb3f26c8a4015b61ce6b7039 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
/* SPDX-License-Identifier: GPL-2.0
 *
 * Copyright 2017-2020 HabanaLabs, Ltd.
 * All Rights Reserved.
 *
 */

#ifndef GAUDI_PACKETS_H
#define GAUDI_PACKETS_H

#include <linux/types.h>

#define PACKET_HEADER_PACKET_ID_SHIFT		56
#define PACKET_HEADER_PACKET_ID_MASK		0x1F00000000000000ull

enum packet_id {
	PACKET_WREG_32 = 0x1,
	PACKET_WREG_BULK = 0x2,
	PACKET_MSG_LONG = 0x3,
	PACKET_MSG_SHORT = 0x4,
	PACKET_CP_DMA = 0x5,
	PACKET_REPEAT = 0x6,
	PACKET_MSG_PROT = 0x7,
	PACKET_FENCE = 0x8,
	PACKET_LIN_DMA = 0x9,
	PACKET_NOP = 0xA,
	PACKET_STOP = 0xB,
	PACKET_ARB_POINT = 0xC,
	PACKET_WAIT = 0xD,
	PACKET_LOAD_AND_EXE = 0xF,
	MAX_PACKET_ID = (PACKET_HEADER_PACKET_ID_MASK >>
				PACKET_HEADER_PACKET_ID_SHIFT) + 1
};

#define GAUDI_PKT_CTL_OPCODE_SHIFT	24
#define GAUDI_PKT_CTL_OPCODE_MASK	0x1F000000

#define GAUDI_PKT_CTL_EB_SHIFT		29
#define GAUDI_PKT_CTL_EB_MASK		0x20000000

#define GAUDI_PKT_CTL_RB_SHIFT		30
#define GAUDI_PKT_CTL_RB_MASK		0x40000000

#define GAUDI_PKT_CTL_MB_SHIFT		31
#define GAUDI_PKT_CTL_MB_MASK		0x80000000

/* All packets have, at least, an 8-byte header, which contains
 * the packet type. The kernel driver uses the packet header for packet
 * validation and to perform any necessary required preparation before
 * sending them off to the hardware.
 */
struct gaudi_packet {
	__le64 header;
	/* The rest of the packet data follows. Use the corresponding
	 * packet_XXX struct to deference the data, based on packet type
	 */
	u8 contents[0];
};

struct packet_nop {
	__le32 reserved;
	__le32 ctl;
};

struct packet_stop {
	__le32 reserved;
	__le32 ctl;
};

struct packet_wreg32 {
	__le32 value;
	__le32 ctl;
};

struct packet_wreg_bulk {
	__le32 size64;
	__le32 ctl;
	__le64 values[0]; /* data starts here */
};

struct packet_msg_long {
	__le32 value;
	__le32 ctl;
	__le64 addr;
};

#define GAUDI_PKT_SHORT_VAL_SOB_SYNC_VAL_SHIFT	0
#define GAUDI_PKT_SHORT_VAL_SOB_SYNC_VAL_MASK	0x00007FFF

#define GAUDI_PKT_SHORT_VAL_SOB_MOD_SHIFT	31
#define GAUDI_PKT_SHORT_VAL_SOB_MOD_MASK	0x80000000

#define GAUDI_PKT_SHORT_VAL_MON_SYNC_GID_SHIFT	0
#define GAUDI_PKT_SHORT_VAL_MON_SYNC_GID_MASK	0x000000FF

#define GAUDI_PKT_SHORT_VAL_MON_MASK_SHIFT	8
#define GAUDI_PKT_SHORT_VAL_MON_MASK_MASK	0x0000FF00

#define GAUDI_PKT_SHORT_VAL_MON_MODE_SHIFT	16
#define GAUDI_PKT_SHORT_VAL_MON_MODE_MASK	0x00010000

#define GAUDI_PKT_SHORT_VAL_MON_SYNC_VAL_SHIFT	17
#define GAUDI_PKT_SHORT_VAL_MON_SYNC_VAL_MASK	0xFFFE0000

#define GAUDI_PKT_SHORT_CTL_ADDR_SHIFT		0
#define GAUDI_PKT_SHORT_CTL_ADDR_MASK		0x0000FFFF

#define GAUDI_PKT_SHORT_CTL_OP_SHIFT		20
#define GAUDI_PKT_SHORT_CTL_OP_MASK		0x00300000

#define GAUDI_PKT_SHORT_CTL_BASE_SHIFT		22
#define GAUDI_PKT_SHORT_CTL_BASE_MASK		0x00C00000

#define GAUDI_PKT_SHORT_CTL_OPCODE_SHIFT	24
#define GAUDI_PKT_SHORT_CTL_OPCODE_MASK		0x1F000000

#define GAUDI_PKT_SHORT_CTL_EB_SHIFT		29
#define GAUDI_PKT_SHORT_CTL_EB_MASK		0x20000000

#define GAUDI_PKT_SHORT_CTL_RB_SHIFT		30
#define GAUDI_PKT_SHORT_CTL_RB_MASK		0x40000000

#define GAUDI_PKT_SHORT_CTL_MB_SHIFT		31
#define GAUDI_PKT_SHORT_CTL_MB_MASK		0x80000000

struct packet_msg_short {
	__le32 value;
	__le32 ctl;
};

struct packet_msg_prot {
	__le32 value;
	__le32 ctl;
	__le64 addr;
};

#define GAUDI_PKT_FENCE_CFG_DEC_VAL_SHIFT	0
#define GAUDI_PKT_FENCE_CFG_DEC_VAL_MASK	0x0000000F

#define GAUDI_PKT_FENCE_CFG_TARGET_VAL_SHIFT	16
#define GAUDI_PKT_FENCE_CFG_TARGET_VAL_MASK	0x00FF0000

#define GAUDI_PKT_FENCE_CFG_ID_SHIFT		30
#define GAUDI_PKT_FENCE_CFG_ID_MASK		0xC0000000

#define GAUDI_PKT_FENCE_CTL_PRED_SHIFT		0
#define GAUDI_PKT_FENCE_CTL_PRED_MASK		0x0000001F

#define GAUDI_PKT_FENCE_CTL_OPCODE_SHIFT	24
#define GAUDI_PKT_FENCE_CTL_OPCODE_MASK		0x1F000000

#define GAUDI_PKT_FENCE_CTL_EB_SHIFT		29
#define GAUDI_PKT_FENCE_CTL_EB_MASK		0x20000000

#define GAUDI_PKT_FENCE_CTL_RB_SHIFT		30
#define GAUDI_PKT_FENCE_CTL_RB_MASK		0x40000000

#define GAUDI_PKT_FENCE_CTL_MB_SHIFT		31
#define GAUDI_PKT_FENCE_CTL_MB_MASK		0x80000000

struct packet_fence {
	__le32 cfg;
	__le32 ctl;
};

#define GAUDI_PKT_LIN_DMA_CTL_WRCOMP_EN_SHIFT	0
#define GAUDI_PKT_LIN_DMA_CTL_WRCOMP_EN_MASK	0x00000001

#define GAUDI_PKT_LIN_DMA_CTL_LIN_SHIFT		3
#define GAUDI_PKT_LIN_DMA_CTL_LIN_MASK		0x00000008

#define GAUDI_PKT_LIN_DMA_CTL_MEMSET_SHIFT	4
#define GAUDI_PKT_LIN_DMA_CTL_MEMSET_MASK	0x00000010

#define GAUDI_PKT_LIN_DMA_DST_ADDR_SHIFT	0
#define GAUDI_PKT_LIN_DMA_DST_ADDR_MASK		0x00FFFFFFFFFFFFFFull

struct packet_lin_dma {
	__le32 tsize;
	__le32 ctl;
	__le64 src_addr;
	__le64 dst_addr;
};

struct packet_arb_point {
	__le32 cfg;
	__le32 ctl;
};

struct packet_repeat {
	__le32 cfg;
	__le32 ctl;
};

struct packet_wait {
	__le32 cfg;
	__le32 ctl;
};

#define GAUDI_PKT_LOAD_AND_EXE_CFG_DST_SHIFT	0
#define GAUDI_PKT_LOAD_AND_EXE_CFG_DST_MASK	0x00000001

struct packet_load_and_exe {
	__le32 cfg;
	__le32 ctl;
	__le64 src_addr;
};

struct packet_cp_dma {
	__le32 tsize;
	__le32 ctl;
	__le64 src_addr;
};

#endif /* GAUDI_PACKETS_H */