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_hpo_dp.h"
26 #include "dm_helpers.h"
27 #include "core_types.h"
28 #include "dccg.h"
29 #include "clk_mgr.h"
30 
set_hpo_dp_throttled_vcp_size(struct pipe_ctx * pipe_ctx,struct fixed31_32 throttled_vcp_size)31 void set_hpo_dp_throttled_vcp_size(struct pipe_ctx *pipe_ctx,
32 		struct fixed31_32 throttled_vcp_size)
33 {
34 	struct hpo_dp_stream_encoder *hpo_dp_stream_encoder =
35 			pipe_ctx->stream_res.hpo_dp_stream_enc;
36 	struct hpo_dp_link_encoder *hpo_dp_link_encoder =
37 			pipe_ctx->link_res.hpo_dp_link_enc;
38 
39 	hpo_dp_link_encoder->funcs->set_throttled_vcp_size(hpo_dp_link_encoder,
40 			hpo_dp_stream_encoder->inst,
41 			throttled_vcp_size);
42 }
43 
set_hpo_dp_hblank_min_symbol_width(struct pipe_ctx * pipe_ctx,const struct dc_link_settings * link_settings,struct fixed31_32 throttled_vcp_size)44 void set_hpo_dp_hblank_min_symbol_width(struct pipe_ctx *pipe_ctx,
45 		const struct dc_link_settings *link_settings,
46 		struct fixed31_32 throttled_vcp_size)
47 {
48 	struct hpo_dp_stream_encoder *hpo_dp_stream_encoder =
49 			pipe_ctx->stream_res.hpo_dp_stream_enc;
50 	struct dc_crtc_timing *timing = &pipe_ctx->stream->timing;
51 	struct fixed31_32 h_blank_in_ms, time_slot_in_ms, mtp_cnt_per_h_blank;
52 	uint32_t link_bw_in_kbps =
53 			hpo_dp_stream_encoder->ctx->dc->link_srv->dp_link_bandwidth_kbps(
54 					pipe_ctx->stream->link, link_settings);
55 	uint16_t hblank_min_symbol_width = 0;
56 
57 	if (link_bw_in_kbps > 0) {
58 		h_blank_in_ms = dc_fixpt_div(dc_fixpt_from_int(
59 				timing->h_total - timing->h_addressable),
60 				dc_fixpt_from_fraction(timing->pix_clk_100hz, 10));
61 		time_slot_in_ms = dc_fixpt_from_fraction(32 * 4, link_bw_in_kbps);
62 		mtp_cnt_per_h_blank = dc_fixpt_div(h_blank_in_ms,
63 				dc_fixpt_mul_int(time_slot_in_ms, 64));
64 		hblank_min_symbol_width = dc_fixpt_floor(
65 				dc_fixpt_mul(mtp_cnt_per_h_blank, throttled_vcp_size));
66 	}
67 
68 	hpo_dp_stream_encoder->funcs->set_hblank_min_symbol_width(hpo_dp_stream_encoder,
69 			hblank_min_symbol_width);
70 }
71 
setup_hpo_dp_stream_encoder(struct pipe_ctx * pipe_ctx)72 void setup_hpo_dp_stream_encoder(struct pipe_ctx *pipe_ctx)
73 {
74 	struct hpo_dp_stream_encoder *stream_enc = pipe_ctx->stream_res.hpo_dp_stream_enc;
75 	struct hpo_dp_link_encoder *link_enc = pipe_ctx->link_res.hpo_dp_link_enc;
76 
77 	stream_enc->funcs->enable_stream(stream_enc);
78 	stream_enc->funcs->map_stream_to_link(stream_enc, stream_enc->inst, link_enc->inst);
79 }
80 
reset_hpo_dp_stream_encoder(struct pipe_ctx * pipe_ctx)81 void reset_hpo_dp_stream_encoder(struct pipe_ctx *pipe_ctx)
82 {
83 	struct hpo_dp_stream_encoder *stream_enc = pipe_ctx->stream_res.hpo_dp_stream_enc;
84 
85 	stream_enc->funcs->disable(stream_enc);
86 }
87 
setup_hpo_dp_stream_attribute(struct pipe_ctx * pipe_ctx)88 void setup_hpo_dp_stream_attribute(struct pipe_ctx *pipe_ctx)
89 {
90 	struct hpo_dp_stream_encoder *stream_enc = pipe_ctx->stream_res.hpo_dp_stream_enc;
91 	struct dc_stream_state *stream = pipe_ctx->stream;
92 	struct dc_link *link = stream->link;
93 
94 	stream_enc->funcs->set_stream_attribute(
95 			stream_enc,
96 			&stream->timing,
97 			stream->output_color_space,
98 			stream->use_vsc_sdp_for_colorimetry,
99 			stream->timing.flags.DSC,
100 			false);
101 	link->dc->link_srv->dp_trace_source_sequence(link,
102 			DPCD_SOURCE_SEQ_AFTER_DP_STREAM_ATTR);
103 }
104 
enable_hpo_dp_link_output(struct dc_link * link,const struct link_resource * link_res,enum signal_type signal,enum clock_source_id clock_source,const struct dc_link_settings * link_settings)105 void enable_hpo_dp_link_output(struct dc_link *link,
106 		const struct link_resource *link_res,
107 		enum signal_type signal,
108 		enum clock_source_id clock_source,
109 		const struct dc_link_settings *link_settings)
110 {
111 	if (link->dc->res_pool->dccg->funcs->set_symclk32_le_root_clock_gating)
112 		link->dc->res_pool->dccg->funcs->set_symclk32_le_root_clock_gating(
113 				link->dc->res_pool->dccg,
114 				link_res->hpo_dp_link_enc->inst,
115 				true);
116 	link_res->hpo_dp_link_enc->funcs->enable_link_phy(
117 			link_res->hpo_dp_link_enc,
118 			link_settings,
119 			link->link_enc->transmitter,
120 			link->link_enc->hpd_source);
121 }
122 
disable_hpo_dp_link_output(struct dc_link * link,const struct link_resource * link_res,enum signal_type signal)123 void disable_hpo_dp_link_output(struct dc_link *link,
124 		const struct link_resource *link_res,
125 		enum signal_type signal)
126 {
127 		link_res->hpo_dp_link_enc->funcs->link_disable(link_res->hpo_dp_link_enc);
128 		link_res->hpo_dp_link_enc->funcs->disable_link_phy(
129 				link_res->hpo_dp_link_enc, signal);
130 		if (link->dc->res_pool->dccg->funcs->set_symclk32_le_root_clock_gating)
131 			link->dc->res_pool->dccg->funcs->set_symclk32_le_root_clock_gating(
132 					link->dc->res_pool->dccg,
133 					link_res->hpo_dp_link_enc->inst,
134 					false);
135 }
136 
set_hpo_dp_link_test_pattern(struct dc_link * link,const struct link_resource * link_res,struct encoder_set_dp_phy_pattern_param * tp_params)137 static void set_hpo_dp_link_test_pattern(struct dc_link *link,
138 		const struct link_resource *link_res,
139 		struct encoder_set_dp_phy_pattern_param *tp_params)
140 {
141 	link_res->hpo_dp_link_enc->funcs->set_link_test_pattern(
142 			link_res->hpo_dp_link_enc, tp_params);
143 	link->dc->link_srv->dp_trace_source_sequence(link, DPCD_SOURCE_SEQ_AFTER_SET_SOURCE_PATTERN);
144 }
145 
set_hpo_dp_lane_settings(struct dc_link * link,const struct link_resource * link_res,const struct dc_link_settings * link_settings,const struct dc_lane_settings lane_settings[LANE_COUNT_DP_MAX])146 static void set_hpo_dp_lane_settings(struct dc_link *link,
147 		const struct link_resource *link_res,
148 		const struct dc_link_settings *link_settings,
149 		const struct dc_lane_settings lane_settings[LANE_COUNT_DP_MAX])
150 {
151 	link_res->hpo_dp_link_enc->funcs->set_ffe(
152 			link_res->hpo_dp_link_enc,
153 			link_settings,
154 			lane_settings[0].FFE_PRESET.raw);
155 }
156 
update_hpo_dp_stream_allocation_table(struct dc_link * link,const struct link_resource * link_res,const struct link_mst_stream_allocation_table * table)157 void update_hpo_dp_stream_allocation_table(struct dc_link *link,
158 		const struct link_resource *link_res,
159 		const struct link_mst_stream_allocation_table *table)
160 {
161 	link_res->hpo_dp_link_enc->funcs->update_stream_allocation_table(
162 			link_res->hpo_dp_link_enc,
163 			table);
164 }
165 
setup_hpo_dp_audio_output(struct pipe_ctx * pipe_ctx,struct audio_output * audio_output,uint32_t audio_inst)166 void setup_hpo_dp_audio_output(struct pipe_ctx *pipe_ctx,
167 		struct audio_output *audio_output, uint32_t audio_inst)
168 {
169 	pipe_ctx->stream_res.hpo_dp_stream_enc->funcs->dp_audio_setup(
170 			pipe_ctx->stream_res.hpo_dp_stream_enc,
171 			audio_inst,
172 			&pipe_ctx->stream->audio_info);
173 }
174 
enable_hpo_dp_audio_packet(struct pipe_ctx * pipe_ctx)175 void enable_hpo_dp_audio_packet(struct pipe_ctx *pipe_ctx)
176 {
177 	pipe_ctx->stream_res.hpo_dp_stream_enc->funcs->dp_audio_enable(
178 			pipe_ctx->stream_res.hpo_dp_stream_enc);
179 }
180 
disable_hpo_dp_audio_packet(struct pipe_ctx * pipe_ctx)181 void disable_hpo_dp_audio_packet(struct pipe_ctx *pipe_ctx)
182 {
183 	if (pipe_ctx->stream_res.audio)
184 		pipe_ctx->stream_res.hpo_dp_stream_enc->funcs->dp_audio_disable(
185 				pipe_ctx->stream_res.hpo_dp_stream_enc);
186 }
187 
188 static const struct link_hwss hpo_dp_link_hwss = {
189 	.setup_stream_encoder = setup_hpo_dp_stream_encoder,
190 	.reset_stream_encoder = reset_hpo_dp_stream_encoder,
191 	.setup_stream_attribute = setup_hpo_dp_stream_attribute,
192 	.disable_link_output = disable_hpo_dp_link_output,
193 	.setup_audio_output = setup_hpo_dp_audio_output,
194 	.enable_audio_packet = enable_hpo_dp_audio_packet,
195 	.disable_audio_packet = disable_hpo_dp_audio_packet,
196 	.ext = {
197 		.set_throttled_vcp_size = set_hpo_dp_throttled_vcp_size,
198 		.set_hblank_min_symbol_width = set_hpo_dp_hblank_min_symbol_width,
199 		.enable_dp_link_output = enable_hpo_dp_link_output,
200 		.set_dp_link_test_pattern  = set_hpo_dp_link_test_pattern,
201 		.set_dp_lane_settings = set_hpo_dp_lane_settings,
202 		.update_stream_allocation_table = update_hpo_dp_stream_allocation_table,
203 	},
204 };
205 
can_use_hpo_dp_link_hwss(const struct dc_link * link,const struct link_resource * link_res)206 bool can_use_hpo_dp_link_hwss(const struct dc_link *link,
207 		const struct link_resource *link_res)
208 {
209 	return link_res->hpo_dp_link_enc != NULL;
210 }
211 
get_hpo_dp_link_hwss(void)212 const struct link_hwss *get_hpo_dp_link_hwss(void)
213 {
214 	return &hpo_dp_link_hwss;
215 }
216 
217