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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright (c) 2017 The Linux Foundation. All rights reserved. */
3
4#ifndef _A6XX_HFI_H_
5#define _A6XX_HFI_H_
6
7struct a6xx_hfi_queue_table_header {
8 u32 version;
9 u32 size; /* Size of the queue table in dwords */
10 u32 qhdr0_offset; /* Offset of the first queue header */
11 u32 qhdr_size; /* Size of the queue headers */
12 u32 num_queues; /* Number of total queues */
13 u32 active_queues; /* Number of active queues */
14};
15
16struct a6xx_hfi_queue_header {
17 u32 status;
18 u32 iova;
19 u32 type;
20 u32 size;
21 u32 msg_size;
22 u32 dropped;
23 u32 rx_watermark;
24 u32 tx_watermark;
25 u32 rx_request;
26 u32 tx_request;
27 u32 read_index;
28 u32 write_index;
29};
30
31struct a6xx_hfi_queue {
32 struct a6xx_hfi_queue_header *header;
33 spinlock_t lock;
34 u32 *data;
35 atomic_t seqnum;
36};
37
38/* This is the outgoing queue to the GMU */
39#define HFI_COMMAND_QUEUE 0
40
41/* THis is the incoming response queue from the GMU */
42#define HFI_RESPONSE_QUEUE 1
43
44#define HFI_HEADER_ID(msg) ((msg) & 0xff)
45#define HFI_HEADER_SIZE(msg) (((msg) >> 8) & 0xff)
46#define HFI_HEADER_SEQNUM(msg) (((msg) >> 20) & 0xfff)
47
48/* FIXME: Do we need this or can we use ARRAY_SIZE? */
49#define HFI_RESPONSE_PAYLOAD_SIZE 16
50
51/* HFI message types */
52
53#define HFI_MSG_CMD 0
54#define HFI_MSG_ACK 2
55
56#define HFI_F2H_MSG_ACK 126
57
58struct a6xx_hfi_msg_response {
59 u32 header;
60 u32 ret_header;
61 u32 error;
62 u32 payload[HFI_RESPONSE_PAYLOAD_SIZE];
63};
64
65#define HFI_F2H_MSG_ERROR 100
66
67struct a6xx_hfi_msg_error {
68 u32 header;
69 u32 code;
70 u32 payload[2];
71};
72
73#define HFI_H2F_MSG_INIT 0
74
75struct a6xx_hfi_msg_gmu_init_cmd {
76 u32 header;
77 u32 seg_id;
78 u32 dbg_buffer_addr;
79 u32 dbg_buffer_size;
80 u32 boot_state;
81};
82
83#define HFI_H2F_MSG_FW_VERSION 1
84
85struct a6xx_hfi_msg_fw_version {
86 u32 header;
87 u32 supported_version;
88};
89
90#define HFI_H2F_MSG_PERF_TABLE 4
91
92struct perf_level {
93 u32 vote;
94 u32 freq;
95};
96
97struct a6xx_hfi_msg_perf_table {
98 u32 header;
99 u32 num_gpu_levels;
100 u32 num_gmu_levels;
101
102 struct perf_level gx_votes[16];
103 struct perf_level cx_votes[4];
104};
105
106#define HFI_H2F_MSG_BW_TABLE 3
107
108struct a6xx_hfi_msg_bw_table {
109 u32 header;
110 u32 bw_level_num;
111 u32 cnoc_cmds_num;
112 u32 ddr_cmds_num;
113 u32 cnoc_wait_bitmask;
114 u32 ddr_wait_bitmask;
115 u32 cnoc_cmds_addrs[6];
116 u32 cnoc_cmds_data[2][6];
117 u32 ddr_cmds_addrs[8];
118 u32 ddr_cmds_data[16][8];
119};
120
121#define HFI_H2F_MSG_TEST 5
122
123struct a6xx_hfi_msg_test {
124 u32 header;
125};
126
127#endif