Linux kernel mirror (for testing)
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1/*
2 * Copyright 2012-15 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26/**
27 * This file defines helper functions provided by the Display Manager to
28 * Display Core.
29 */
30#ifndef __DM_HELPERS__
31#define __DM_HELPERS__
32
33#include "dc_types.h"
34#include "dc.h"
35
36struct dp_mst_stream_allocation_table;
37
38/*
39 * Allocate memory accessible by the GPU
40 *
41 * frame buffer allocations must be aligned to a 4096-byte boundary
42 *
43 * Returns virtual address, sets addr to physical address
44 */
45void *dm_helpers_allocate_gpu_mem(
46 struct dc_context *ctx,
47 enum dc_gpu_mem_alloc_type type,
48 size_t size,
49 long long *addr);
50
51/*
52 * Free the GPU-accessible memory at the virtual address pvMem
53 */
54void dm_helpers_free_gpu_mem(
55 struct dc_context *ctx,
56 enum dc_gpu_mem_alloc_type type,
57 void *pvMem);
58
59enum dc_edid_status dm_helpers_parse_edid_caps(
60 struct dc_context *ctx,
61 const struct dc_edid *edid,
62 struct dc_edid_caps *edid_caps);
63
64
65/*
66 * Update DP branch info
67 */
68void dm_helpers_dp_update_branch_info(
69 struct dc_context *ctx,
70 const struct dc_link *link);
71
72/*
73 * Writes payload allocation table in immediate downstream device.
74 */
75bool dm_helpers_dp_mst_write_payload_allocation_table(
76 struct dc_context *ctx,
77 const struct dc_stream_state *stream,
78 struct dp_mst_stream_allocation_table *proposed_table,
79 bool enable);
80
81/*
82 * poll pending down reply
83 */
84void dm_helpers_dp_mst_poll_pending_down_reply(
85 struct dc_context *ctx,
86 const struct dc_link *link);
87
88/*
89 * Clear payload allocation table before enable MST DP link.
90 */
91void dm_helpers_dp_mst_clear_payload_allocation_table(
92 struct dc_context *ctx,
93 const struct dc_link *link);
94
95/*
96 * Polls for ACT (allocation change trigger) handled and
97 */
98enum act_return_status dm_helpers_dp_mst_poll_for_allocation_change_trigger(
99 struct dc_context *ctx,
100 const struct dc_stream_state *stream);
101/*
102 * Sends ALLOCATE_PAYLOAD message.
103 */
104bool dm_helpers_dp_mst_send_payload_allocation(
105 struct dc_context *ctx,
106 const struct dc_stream_state *stream,
107 bool enable);
108
109bool dm_helpers_dp_mst_start_top_mgr(
110 struct dc_context *ctx,
111 const struct dc_link *link,
112 bool boot);
113
114void dm_helpers_dp_mst_stop_top_mgr(
115 struct dc_context *ctx,
116 struct dc_link *link);
117/**
118 * OS specific aux read callback.
119 */
120bool dm_helpers_dp_read_dpcd(
121 struct dc_context *ctx,
122 const struct dc_link *link,
123 uint32_t address,
124 uint8_t *data,
125 uint32_t size);
126
127/**
128 * OS specific aux write callback.
129 */
130bool dm_helpers_dp_write_dpcd(
131 struct dc_context *ctx,
132 const struct dc_link *link,
133 uint32_t address,
134 const uint8_t *data,
135 uint32_t size);
136
137bool dm_helpers_submit_i2c(
138 struct dc_context *ctx,
139 const struct dc_link *link,
140 struct i2c_command *cmd);
141
142bool dm_helpers_dp_write_dsc_enable(
143 struct dc_context *ctx,
144 const struct dc_stream_state *stream,
145 bool enable
146);
147bool dm_helpers_is_dp_sink_present(
148 struct dc_link *link);
149
150enum dc_edid_status dm_helpers_read_local_edid(
151 struct dc_context *ctx,
152 struct dc_link *link,
153 struct dc_sink *sink);
154
155void dm_set_dcn_clocks(
156 struct dc_context *ctx,
157 struct dc_clocks *clks);
158
159#endif /* __DM_HELPERS__ */