1 /*
2 * Copyright 2022 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 #include "link_hwss_dpia.h"
26 #include "core_types.h"
27 #include "link_hwss_dio.h"
28 #include "link_enc_cfg.h"
29
30 #define DC_LOGGER_INIT(logger)
31
update_dpia_stream_allocation_table(struct dc_link * link,const struct link_resource * link_res,const struct link_mst_stream_allocation_table * table)32 static void update_dpia_stream_allocation_table(struct dc_link *link,
33 const struct link_resource *link_res,
34 const struct link_mst_stream_allocation_table *table)
35 {
36 struct link_encoder *link_enc = link_enc_cfg_get_link_enc(link);
37 static enum dc_status status;
38 uint8_t mst_alloc_slots = 0, prev_mst_slots_in_use = 0xFF;
39 int i;
40 DC_LOGGER_INIT(link->ctx->logger);
41
42 for (i = 0; i < table->stream_count; i++)
43 mst_alloc_slots += table->stream_allocations[i].slot_count;
44
45 status = dc_process_dmub_set_mst_slots(link->dc, link->link_index,
46 mst_alloc_slots, &prev_mst_slots_in_use);
47 ASSERT(status == DC_OK);
48 DC_LOG_MST("dpia : status[%d]: alloc_slots[%d]: used_slots[%d]\n",
49 status, mst_alloc_slots, prev_mst_slots_in_use);
50
51 ASSERT(link_enc);
52 link_enc->funcs->update_mst_stream_allocation_table(link_enc, table);
53 }
54
55 static const struct link_hwss dpia_link_hwss = {
56 .setup_stream_encoder = setup_dio_stream_encoder,
57 .reset_stream_encoder = reset_dio_stream_encoder,
58 .setup_stream_attribute = setup_dio_stream_attribute,
59 .disable_link_output = disable_dio_link_output,
60 .ext = {
61 .set_throttled_vcp_size = set_dio_throttled_vcp_size,
62 .enable_dp_link_output = enable_dio_dp_link_output,
63 .set_dp_link_test_pattern = set_dio_dp_link_test_pattern,
64 .set_dp_lane_settings = set_dio_dp_lane_settings,
65 .update_stream_allocation_table = update_dpia_stream_allocation_table,
66 },
67 };
68
can_use_dpia_link_hwss(const struct dc_link * link,const struct link_resource * link_res)69 bool can_use_dpia_link_hwss(const struct dc_link *link,
70 const struct link_resource *link_res)
71 {
72 return link->is_dig_mapping_flexible &&
73 link->dc->res_pool->funcs->link_encs_assign;
74 }
75
get_dpia_link_hwss(void)76 const struct link_hwss *get_dpia_link_hwss(void)
77 {
78 return &dpia_link_hwss;
79 }
80
