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 #include <linux/delay.h>
27 #include <linux/slab.h>
28 
29 #include "dm_services.h"
30 #include "basics/dc_common.h"
31 #include "dc.h"
32 #include "core_types.h"
33 #include "resource.h"
34 #include "ipp.h"
35 #include "timing_generator.h"
36 
37 #define DC_LOGGER dc->ctx->logger
38 
39 /*******************************************************************************
40  * Private functions
41  ******************************************************************************/
42 void update_stream_signal(struct dc_stream_state *stream, struct dc_sink *sink)
43 {
44 	if (sink->sink_signal == SIGNAL_TYPE_NONE)
45 		stream->signal = stream->link->connector_signal;
46 	else
47 		stream->signal = sink->sink_signal;
48 
49 	if (dc_is_dvi_signal(stream->signal)) {
50 		if (stream->ctx->dc->caps.dual_link_dvi &&
51 			(stream->timing.pix_clk_100hz / 10) > TMDS_MAX_PIXEL_CLOCK &&
52 			sink->sink_signal != SIGNAL_TYPE_DVI_SINGLE_LINK)
53 			stream->signal = SIGNAL_TYPE_DVI_DUAL_LINK;
54 		else
55 			stream->signal = SIGNAL_TYPE_DVI_SINGLE_LINK;
56 	}
57 }
58 
59 static void dc_stream_construct(struct dc_stream_state *stream,
60 	struct dc_sink *dc_sink_data)
61 {
62 	uint32_t i = 0;
63 
64 	stream->sink = dc_sink_data;
65 	dc_sink_retain(dc_sink_data);
66 
67 	stream->ctx = dc_sink_data->ctx;
68 	stream->link = dc_sink_data->link;
69 	stream->sink_patches = dc_sink_data->edid_caps.panel_patch;
70 	stream->converter_disable_audio = dc_sink_data->converter_disable_audio;
71 	stream->qs_bit = dc_sink_data->edid_caps.qs_bit;
72 	stream->qy_bit = dc_sink_data->edid_caps.qy_bit;
73 
74 	/* Copy audio modes */
75 	/* TODO - Remove this translation */
76 	for (i = 0; i < (dc_sink_data->edid_caps.audio_mode_count); i++)
77 	{
78 		stream->audio_info.modes[i].channel_count = dc_sink_data->edid_caps.audio_modes[i].channel_count;
79 		stream->audio_info.modes[i].format_code = dc_sink_data->edid_caps.audio_modes[i].format_code;
80 		stream->audio_info.modes[i].sample_rates.all = dc_sink_data->edid_caps.audio_modes[i].sample_rate;
81 		stream->audio_info.modes[i].sample_size = dc_sink_data->edid_caps.audio_modes[i].sample_size;
82 	}
83 	stream->audio_info.mode_count = dc_sink_data->edid_caps.audio_mode_count;
84 	stream->audio_info.audio_latency = dc_sink_data->edid_caps.audio_latency;
85 	stream->audio_info.video_latency = dc_sink_data->edid_caps.video_latency;
86 	memmove(
87 		stream->audio_info.display_name,
88 		dc_sink_data->edid_caps.display_name,
89 		AUDIO_INFO_DISPLAY_NAME_SIZE_IN_CHARS);
90 	stream->audio_info.manufacture_id = dc_sink_data->edid_caps.manufacturer_id;
91 	stream->audio_info.product_id = dc_sink_data->edid_caps.product_id;
92 	stream->audio_info.flags.all = dc_sink_data->edid_caps.speaker_flags;
93 
94 	if (dc_sink_data->dc_container_id != NULL) {
95 		struct dc_container_id *dc_container_id = dc_sink_data->dc_container_id;
96 
97 		stream->audio_info.port_id[0] = dc_container_id->portId[0];
98 		stream->audio_info.port_id[1] = dc_container_id->portId[1];
99 	} else {
100 		/* TODO - WindowDM has implemented,
101 		other DMs need Unhardcode port_id */
102 		stream->audio_info.port_id[0] = 0x5558859e;
103 		stream->audio_info.port_id[1] = 0xd989449;
104 	}
105 
106 	/* EDID CAP translation for HDMI 2.0 */
107 	stream->timing.flags.LTE_340MCSC_SCRAMBLE = dc_sink_data->edid_caps.lte_340mcsc_scramble;
108 
109 	memset(&stream->timing.dsc_cfg, 0, sizeof(stream->timing.dsc_cfg));
110 	stream->timing.dsc_cfg.num_slices_h = 0;
111 	stream->timing.dsc_cfg.num_slices_v = 0;
112 	stream->timing.dsc_cfg.bits_per_pixel = 128;
113 	stream->timing.dsc_cfg.block_pred_enable = 1;
114 	stream->timing.dsc_cfg.linebuf_depth = 9;
115 	stream->timing.dsc_cfg.version_minor = 2;
116 	stream->timing.dsc_cfg.ycbcr422_simple = 0;
117 
118 	update_stream_signal(stream, dc_sink_data);
119 
120 	stream->out_transfer_func = dc_create_transfer_func();
121 	stream->out_transfer_func->type = TF_TYPE_BYPASS;
122 	stream->out_transfer_func->ctx = stream->ctx;
123 
124 	stream->stream_id = stream->ctx->dc_stream_id_count;
125 	stream->ctx->dc_stream_id_count++;
126 }
127 
128 static void dc_stream_destruct(struct dc_stream_state *stream)
129 {
130 	dc_sink_release(stream->sink);
131 	if (stream->out_transfer_func != NULL) {
132 		dc_transfer_func_release(stream->out_transfer_func);
133 		stream->out_transfer_func = NULL;
134 	}
135 }
136 
137 void dc_stream_retain(struct dc_stream_state *stream)
138 {
139 	kref_get(&stream->refcount);
140 }
141 
142 static void dc_stream_free(struct kref *kref)
143 {
144 	struct dc_stream_state *stream = container_of(kref, struct dc_stream_state, refcount);
145 
146 	dc_stream_destruct(stream);
147 	kfree(stream);
148 }
149 
150 void dc_stream_release(struct dc_stream_state *stream)
151 {
152 	if (stream != NULL) {
153 		kref_put(&stream->refcount, dc_stream_free);
154 	}
155 }
156 
157 struct dc_stream_state *dc_create_stream_for_sink(
158 		struct dc_sink *sink)
159 {
160 	struct dc_stream_state *stream;
161 
162 	if (sink == NULL)
163 		return NULL;
164 
165 	stream = kzalloc(sizeof(struct dc_stream_state), GFP_KERNEL);
166 	if (stream == NULL)
167 		return NULL;
168 
169 	dc_stream_construct(stream, sink);
170 
171 	kref_init(&stream->refcount);
172 
173 	return stream;
174 }
175 
176 struct dc_stream_state *dc_copy_stream(const struct dc_stream_state *stream)
177 {
178 	struct dc_stream_state *new_stream;
179 
180 	new_stream = kmemdup(stream, sizeof(struct dc_stream_state), GFP_KERNEL);
181 	if (!new_stream)
182 		return NULL;
183 
184 	if (new_stream->sink)
185 		dc_sink_retain(new_stream->sink);
186 
187 	if (new_stream->out_transfer_func)
188 		dc_transfer_func_retain(new_stream->out_transfer_func);
189 
190 	new_stream->stream_id = new_stream->ctx->dc_stream_id_count;
191 	new_stream->ctx->dc_stream_id_count++;
192 
193 	kref_init(&new_stream->refcount);
194 
195 	return new_stream;
196 }
197 
198 /**
199  * dc_stream_get_status_from_state - Get stream status from given dc state
200  * @state: DC state to find the stream status in
201  * @stream: The stream to get the stream status for
202  *
203  * The given stream is expected to exist in the given dc state. Otherwise, NULL
204  * will be returned.
205  */
206 struct dc_stream_status *dc_stream_get_status_from_state(
207 	struct dc_state *state,
208 	struct dc_stream_state *stream)
209 {
210 	uint8_t i;
211 
212 	for (i = 0; i < state->stream_count; i++) {
213 		if (stream == state->streams[i])
214 			return &state->stream_status[i];
215 	}
216 
217 	return NULL;
218 }
219 
220 /**
221  * dc_stream_get_status() - Get current stream status of the given stream state
222  * @stream: The stream to get the stream status for.
223  *
224  * The given stream is expected to exist in dc->current_state. Otherwise, NULL
225  * will be returned.
226  */
227 struct dc_stream_status *dc_stream_get_status(
228 	struct dc_stream_state *stream)
229 {
230 	struct dc *dc = stream->ctx->dc;
231 	return dc_stream_get_status_from_state(dc->current_state, stream);
232 }
233 
234 
235 /**
236  * dc_stream_set_cursor_attributes() - Update cursor attributes and set cursor surface address
237  */
238 bool dc_stream_set_cursor_attributes(
239 	struct dc_stream_state *stream,
240 	const struct dc_cursor_attributes *attributes)
241 {
242 	int i;
243 	struct dc  *dc;
244 	struct resource_context *res_ctx;
245 	struct pipe_ctx *pipe_to_program = NULL;
246 
247 	if (NULL == stream) {
248 		dm_error("DC: dc_stream is NULL!\n");
249 		return false;
250 	}
251 	if (NULL == attributes) {
252 		dm_error("DC: attributes is NULL!\n");
253 		return false;
254 	}
255 
256 	if (attributes->address.quad_part == 0) {
257 		dm_output_to_console("DC: Cursor address is 0!\n");
258 		return false;
259 	}
260 
261 	dc = stream->ctx->dc;
262 	res_ctx = &dc->current_state->res_ctx;
263 	stream->cursor_attributes = *attributes;
264 
265 	for (i = 0; i < MAX_PIPES; i++) {
266 		struct pipe_ctx *pipe_ctx = &res_ctx->pipe_ctx[i];
267 
268 		if (pipe_ctx->stream != stream)
269 			continue;
270 
271 		if (!pipe_to_program) {
272 			pipe_to_program = pipe_ctx;
273 			dc->hwss.cursor_lock(dc, pipe_to_program, true);
274 		}
275 
276 		dc->hwss.set_cursor_attribute(pipe_ctx);
277 		if (dc->hwss.set_cursor_sdr_white_level)
278 			dc->hwss.set_cursor_sdr_white_level(pipe_ctx);
279 	}
280 
281 	if (pipe_to_program)
282 		dc->hwss.cursor_lock(dc, pipe_to_program, false);
283 
284 	return true;
285 }
286 
287 bool dc_stream_set_cursor_position(
288 	struct dc_stream_state *stream,
289 	const struct dc_cursor_position *position)
290 {
291 	int i;
292 	struct dc  *dc;
293 	struct resource_context *res_ctx;
294 	struct pipe_ctx *pipe_to_program = NULL;
295 
296 	if (NULL == stream) {
297 		dm_error("DC: dc_stream is NULL!\n");
298 		return false;
299 	}
300 
301 	if (NULL == position) {
302 		dm_error("DC: cursor position is NULL!\n");
303 		return false;
304 	}
305 
306 	dc = stream->ctx->dc;
307 	res_ctx = &dc->current_state->res_ctx;
308 	stream->cursor_position = *position;
309 
310 	for (i = 0; i < MAX_PIPES; i++) {
311 		struct pipe_ctx *pipe_ctx = &res_ctx->pipe_ctx[i];
312 
313 		if (pipe_ctx->stream != stream ||
314 				(!pipe_ctx->plane_res.mi  && !pipe_ctx->plane_res.hubp) ||
315 				!pipe_ctx->plane_state ||
316 				(!pipe_ctx->plane_res.xfm && !pipe_ctx->plane_res.dpp) ||
317 				(!pipe_ctx->plane_res.ipp && !pipe_ctx->plane_res.dpp))
318 			continue;
319 
320 		if (!pipe_to_program) {
321 			pipe_to_program = pipe_ctx;
322 			dc->hwss.cursor_lock(dc, pipe_to_program, true);
323 		}
324 
325 		dc->hwss.set_cursor_position(pipe_ctx);
326 	}
327 
328 	if (pipe_to_program)
329 		dc->hwss.cursor_lock(dc, pipe_to_program, false);
330 
331 	return true;
332 }
333 
334 bool dc_stream_add_writeback(struct dc *dc,
335 		struct dc_stream_state *stream,
336 		struct dc_writeback_info *wb_info)
337 {
338 	bool isDrc = false;
339 	int i = 0;
340 	struct dwbc *dwb;
341 
342 	if (stream == NULL) {
343 		dm_error("DC: dc_stream is NULL!\n");
344 		return false;
345 	}
346 
347 	if (wb_info == NULL) {
348 		dm_error("DC: dc_writeback_info is NULL!\n");
349 		return false;
350 	}
351 
352 	if (wb_info->dwb_pipe_inst >= MAX_DWB_PIPES) {
353 		dm_error("DC: writeback pipe is invalid!\n");
354 		return false;
355 	}
356 
357 	wb_info->dwb_params.out_transfer_func = stream->out_transfer_func;
358 
359 	dwb = dc->res_pool->dwbc[wb_info->dwb_pipe_inst];
360 	dwb->dwb_is_drc = false;
361 
362 	/* recalculate and apply DML parameters */
363 
364 	for (i = 0; i < stream->num_wb_info; i++) {
365 		/*dynamic update*/
366 		if (stream->writeback_info[i].wb_enabled &&
367 			stream->writeback_info[i].dwb_pipe_inst == wb_info->dwb_pipe_inst) {
368 			stream->writeback_info[i] = *wb_info;
369 			isDrc = true;
370 		}
371 	}
372 
373 	if (!isDrc) {
374 		stream->writeback_info[stream->num_wb_info++] = *wb_info;
375 	}
376 
377 	if (dc->hwss.enable_writeback) {
378 		struct dc_stream_status *stream_status = dc_stream_get_status(stream);
379 		struct dwbc *dwb = dc->res_pool->dwbc[wb_info->dwb_pipe_inst];
380 		dwb->otg_inst = stream_status->primary_otg_inst;
381 	}
382 	if (IS_DIAG_DC(dc->ctx->dce_environment)) {
383 		if (!dc->hwss.update_bandwidth(dc, dc->current_state)) {
384 			dm_error("DC: update_bandwidth failed!\n");
385 			return false;
386 		}
387 
388 		/* enable writeback */
389 		if (dc->hwss.enable_writeback) {
390 			struct dwbc *dwb = dc->res_pool->dwbc[wb_info->dwb_pipe_inst];
391 
392 			if (dwb->funcs->is_enabled(dwb)) {
393 				/* writeback pipe already enabled, only need to update */
394 				dc->hwss.update_writeback(dc, wb_info, dc->current_state);
395 			} else {
396 				/* Enable writeback pipe from scratch*/
397 				dc->hwss.enable_writeback(dc, wb_info, dc->current_state);
398 			}
399 		}
400 	}
401 	return true;
402 }
403 
404 bool dc_stream_remove_writeback(struct dc *dc,
405 		struct dc_stream_state *stream,
406 		uint32_t dwb_pipe_inst)
407 {
408 	int i = 0, j = 0;
409 	if (stream == NULL) {
410 		dm_error("DC: dc_stream is NULL!\n");
411 		return false;
412 	}
413 
414 	if (dwb_pipe_inst >= MAX_DWB_PIPES) {
415 		dm_error("DC: writeback pipe is invalid!\n");
416 		return false;
417 	}
418 
419 //	stream->writeback_info[dwb_pipe_inst].wb_enabled = false;
420 	for (i = 0; i < stream->num_wb_info; i++) {
421 		/*dynamic update*/
422 		if (stream->writeback_info[i].wb_enabled &&
423 			stream->writeback_info[i].dwb_pipe_inst == dwb_pipe_inst) {
424 			stream->writeback_info[i].wb_enabled = false;
425 		}
426 	}
427 
428 	/* remove writeback info for disabled writeback pipes from stream */
429 	for (i = 0, j = 0; i < stream->num_wb_info; i++) {
430 		if (stream->writeback_info[i].wb_enabled) {
431 			if (i != j)
432 				/* trim the array */
433 				stream->writeback_info[j] = stream->writeback_info[i];
434 			j++;
435 		}
436 	}
437 	stream->num_wb_info = j;
438 
439 	if (IS_DIAG_DC(dc->ctx->dce_environment)) {
440 		/* recalculate and apply DML parameters */
441 		if (!dc->hwss.update_bandwidth(dc, dc->current_state)) {
442 			dm_error("DC: update_bandwidth failed!\n");
443 			return false;
444 		}
445 
446 		/* disable writeback */
447 		if (dc->hwss.disable_writeback)
448 			dc->hwss.disable_writeback(dc, dwb_pipe_inst);
449 	}
450 	return true;
451 }
452 
453 bool dc_stream_warmup_writeback(struct dc *dc,
454 		int num_dwb,
455 		struct dc_writeback_info *wb_info)
456 {
457 	if (dc->hwss.mmhubbub_warmup)
458 		return dc->hwss.mmhubbub_warmup(dc, num_dwb, wb_info);
459 	else
460 		return false;
461 }
462 uint32_t dc_stream_get_vblank_counter(const struct dc_stream_state *stream)
463 {
464 	uint8_t i;
465 	struct dc  *dc = stream->ctx->dc;
466 	struct resource_context *res_ctx =
467 		&dc->current_state->res_ctx;
468 
469 	for (i = 0; i < MAX_PIPES; i++) {
470 		struct timing_generator *tg = res_ctx->pipe_ctx[i].stream_res.tg;
471 
472 		if (res_ctx->pipe_ctx[i].stream != stream)
473 			continue;
474 
475 		return tg->funcs->get_frame_count(tg);
476 	}
477 
478 	return 0;
479 }
480 
481 bool dc_stream_send_dp_sdp(const struct dc_stream_state *stream,
482 		const uint8_t *custom_sdp_message,
483 		unsigned int sdp_message_size)
484 {
485 	int i;
486 	struct dc  *dc;
487 	struct resource_context *res_ctx;
488 
489 	if (stream == NULL) {
490 		dm_error("DC: dc_stream is NULL!\n");
491 		return false;
492 	}
493 
494 	dc = stream->ctx->dc;
495 	res_ctx = &dc->current_state->res_ctx;
496 
497 	for (i = 0; i < MAX_PIPES; i++) {
498 		struct pipe_ctx *pipe_ctx = &res_ctx->pipe_ctx[i];
499 
500 		if (pipe_ctx->stream != stream)
501 			continue;
502 
503 		if (dc->hwss.send_immediate_sdp_message != NULL)
504 			dc->hwss.send_immediate_sdp_message(pipe_ctx,
505 								custom_sdp_message,
506 								sdp_message_size);
507 		else
508 			DC_LOG_WARNING("%s:send_immediate_sdp_message not implemented on this ASIC\n",
509 			__func__);
510 
511 	}
512 
513 	return true;
514 }
515 
516 bool dc_stream_get_scanoutpos(const struct dc_stream_state *stream,
517 				  uint32_t *v_blank_start,
518 				  uint32_t *v_blank_end,
519 				  uint32_t *h_position,
520 				  uint32_t *v_position)
521 {
522 	uint8_t i;
523 	bool ret = false;
524 	struct dc  *dc = stream->ctx->dc;
525 	struct resource_context *res_ctx =
526 		&dc->current_state->res_ctx;
527 
528 	for (i = 0; i < MAX_PIPES; i++) {
529 		struct timing_generator *tg = res_ctx->pipe_ctx[i].stream_res.tg;
530 
531 		if (res_ctx->pipe_ctx[i].stream != stream)
532 			continue;
533 
534 		tg->funcs->get_scanoutpos(tg,
535 					  v_blank_start,
536 					  v_blank_end,
537 					  h_position,
538 					  v_position);
539 
540 		ret = true;
541 		break;
542 	}
543 
544 	return ret;
545 }
546 
547 bool dc_stream_dmdata_status_done(struct dc *dc, struct dc_stream_state *stream)
548 {
549 	struct pipe_ctx *pipe = NULL;
550 	int i;
551 
552 	if (!dc->hwss.dmdata_status_done)
553 		return false;
554 
555 	for (i = 0; i < MAX_PIPES; i++) {
556 		pipe = &dc->current_state->res_ctx.pipe_ctx[i];
557 		if (pipe->stream == stream)
558 			break;
559 	}
560 	/* Stream not found, by default we'll assume HUBP fetched dm data */
561 	if (i == MAX_PIPES)
562 		return true;
563 
564 	return dc->hwss.dmdata_status_done(pipe);
565 }
566 
567 bool dc_stream_set_dynamic_metadata(struct dc *dc,
568 		struct dc_stream_state *stream,
569 		struct dc_dmdata_attributes *attr)
570 {
571 	struct pipe_ctx *pipe_ctx = NULL;
572 	struct hubp *hubp;
573 	int i;
574 
575 	/* Dynamic metadata is only supported on HDMI or DP */
576 	if (!dc_is_hdmi_signal(stream->signal) && !dc_is_dp_signal(stream->signal))
577 		return false;
578 
579 	/* Check hardware support */
580 	if (!dc->hwss.program_dmdata_engine)
581 		return false;
582 
583 	for (i = 0; i < MAX_PIPES; i++) {
584 		pipe_ctx = &dc->current_state->res_ctx.pipe_ctx[i];
585 		if (pipe_ctx->stream == stream)
586 			break;
587 	}
588 
589 	if (i == MAX_PIPES)
590 		return false;
591 
592 	hubp = pipe_ctx->plane_res.hubp;
593 	if (hubp == NULL)
594 		return false;
595 
596 	pipe_ctx->stream->dmdata_address = attr->address;
597 
598 	dc->hwss.program_dmdata_engine(pipe_ctx);
599 
600 	if (hubp->funcs->dmdata_set_attributes != NULL &&
601 			pipe_ctx->stream->dmdata_address.quad_part != 0) {
602 		hubp->funcs->dmdata_set_attributes(hubp, attr);
603 	}
604 
605 	return true;
606 }
607 
608 void dc_stream_log(const struct dc *dc, const struct dc_stream_state *stream)
609 {
610 	DC_LOG_DC(
611 			"core_stream 0x%p: src: %d, %d, %d, %d; dst: %d, %d, %d, %d, colorSpace:%d\n",
612 			stream,
613 			stream->src.x,
614 			stream->src.y,
615 			stream->src.width,
616 			stream->src.height,
617 			stream->dst.x,
618 			stream->dst.y,
619 			stream->dst.width,
620 			stream->dst.height,
621 			stream->output_color_space);
622 	DC_LOG_DC(
623 			"\tpix_clk_khz: %d, h_total: %d, v_total: %d, pixelencoder:%d, displaycolorDepth:%d\n",
624 			stream->timing.pix_clk_100hz / 10,
625 			stream->timing.h_total,
626 			stream->timing.v_total,
627 			stream->timing.pixel_encoding,
628 			stream->timing.display_color_depth);
629 	DC_LOG_DC(
630 			"\tlink: %d\n",
631 			stream->link->link_index);
632 }
633