summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
blob: bc15ee692d3773f60289564335d3ab29406ea6d6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
/*
 * Copyright 2015 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: AMD
 *
 */

#include <linux/string.h>
#include <linux/acpi.h>

#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/amdgpu_drm.h>
#include "dm_services.h"
#include "amdgpu.h"
#include "amdgpu_dm.h"
#include "amdgpu_dm_irq.h"
#include "amdgpu_pm.h"

unsigned long long dm_get_elapse_time_in_ns(struct dc_context *ctx,
		unsigned long long current_time_stamp,
		unsigned long long last_time_stamp)
{
	return current_time_stamp - last_time_stamp;
}

void dm_perf_trace_timestamp(const char *func_name, unsigned int line)
{
}

bool dm_write_persistent_data(struct dc_context *ctx,
		const struct dc_sink *sink,
		const char *module_name,
		const char *key_name,
		void *params,
		unsigned int size,
		struct persistent_data_flag *flag)
{
	/*TODO implement*/
	return false;
}

bool dm_read_persistent_data(struct dc_context *ctx,
				const struct dc_sink *sink,
				const char *module_name,
				const char *key_name,
				void *params,
				unsigned int size,
				struct persistent_data_flag *flag)
{
	/*TODO implement*/
	return false;
}

/**** power component interfaces ****/

bool dm_pp_apply_display_requirements(
		const struct dc_context *ctx,
		const struct dm_pp_display_configuration *pp_display_cfg)
{
	struct amdgpu_device *adev = ctx->driver_context;

	if (adev->pm.dpm_enabled) {

		memset(&adev->pm.pm_display_cfg, 0,
				sizeof(adev->pm.pm_display_cfg));

		adev->pm.pm_display_cfg.cpu_cc6_disable =
			pp_display_cfg->cpu_cc6_disable;

		adev->pm.pm_display_cfg.cpu_pstate_disable =
			pp_display_cfg->cpu_pstate_disable;

		adev->pm.pm_display_cfg.cpu_pstate_separation_time =
			pp_display_cfg->cpu_pstate_separation_time;

		adev->pm.pm_display_cfg.nb_pstate_switch_disable =
			pp_display_cfg->nb_pstate_switch_disable;

		adev->pm.pm_display_cfg.num_display =
				pp_display_cfg->display_count;
		adev->pm.pm_display_cfg.num_path_including_non_display =
				pp_display_cfg->display_count;

		adev->pm.pm_display_cfg.min_core_set_clock =
				pp_display_cfg->min_engine_clock_khz/10;
		adev->pm.pm_display_cfg.min_core_set_clock_in_sr =
				pp_display_cfg->min_engine_clock_deep_sleep_khz/10;
		adev->pm.pm_display_cfg.min_mem_set_clock =
				pp_display_cfg->min_memory_clock_khz/10;

		adev->pm.pm_display_cfg.multi_monitor_in_sync =
				pp_display_cfg->all_displays_in_sync;
		adev->pm.pm_display_cfg.min_vblank_time =
				pp_display_cfg->avail_mclk_switch_time_us;

		adev->pm.pm_display_cfg.display_clk =
				pp_display_cfg->disp_clk_khz/10;

		adev->pm.pm_display_cfg.dce_tolerable_mclk_in_active_latency =
				pp_display_cfg->avail_mclk_switch_time_in_disp_active_us;

		adev->pm.pm_display_cfg.crtc_index = pp_display_cfg->crtc_index;
		adev->pm.pm_display_cfg.line_time_in_us =
				pp_display_cfg->line_time_in_us;

		adev->pm.pm_display_cfg.vrefresh = pp_display_cfg->disp_configs[0].v_refresh;
		adev->pm.pm_display_cfg.crossfire_display_index = -1;
		adev->pm.pm_display_cfg.min_bus_bandwidth = 0;

		/* TODO: complete implementation of
		 * pp_display_configuration_change().
		 * Follow example of:
		 * PHM_StoreDALConfigurationData - powerplay\hwmgr\hardwaremanager.c
		 * PP_IRI_DisplayConfigurationChange - powerplay\eventmgr\iri.c */
		if (adev->powerplay.pp_funcs->display_configuration_change)
			adev->powerplay.pp_funcs->display_configuration_change(
				adev->powerplay.pp_handle,
				&adev->pm.pm_display_cfg);

		/* TODO: replace by a separate call to 'apply display cfg'? */
		amdgpu_pm_compute_clocks(adev);
	}

	return true;
}

static void get_default_clock_levels(
		enum dm_pp_clock_type clk_type,
		struct dm_pp_clock_levels *clks)
{
	uint32_t disp_clks_in_khz[6] = {
			300000, 400000, 496560, 626090, 685720, 757900 };
	uint32_t sclks_in_khz[6] = {
			300000, 360000, 423530, 514290, 626090, 720000 };
	uint32_t mclks_in_khz[2] = { 333000, 800000 };

	switch (clk_type) {
	case DM_PP_CLOCK_TYPE_DISPLAY_CLK:
		clks->num_levels = 6;
		memmove(clks->clocks_in_khz, disp_clks_in_khz,
				sizeof(disp_clks_in_khz));
		break;
	case DM_PP_CLOCK_TYPE_ENGINE_CLK:
		clks->num_levels = 6;
		memmove(clks->clocks_in_khz, sclks_in_khz,
				sizeof(sclks_in_khz));
		break;
	case DM_PP_CLOCK_TYPE_MEMORY_CLK:
		clks->num_levels = 2;
		memmove(clks->clocks_in_khz, mclks_in_khz,
				sizeof(mclks_in_khz));
		break;
	default:
		clks->num_levels = 0;
		break;
	}
}

static enum amd_pp_clock_type dc_to_pp_clock_type(
		enum dm_pp_clock_type dm_pp_clk_type)
{
	enum amd_pp_clock_type amd_pp_clk_type = 0;

	switch (dm_pp_clk_type) {
	case DM_PP_CLOCK_TYPE_DISPLAY_CLK:
		amd_pp_clk_type = amd_pp_disp_clock;
		break;
	case DM_PP_CLOCK_TYPE_ENGINE_CLK:
		amd_pp_clk_type = amd_pp_sys_clock;
		break;
	case DM_PP_CLOCK_TYPE_MEMORY_CLK:
		amd_pp_clk_type = amd_pp_mem_clock;
		break;
	default:
		DRM_ERROR("DM_PPLIB: invalid clock type: %d!\n",
				dm_pp_clk_type);
		break;
	}

	return amd_pp_clk_type;
}

static void pp_to_dc_clock_levels(
		const struct amd_pp_clocks *pp_clks,
		struct dm_pp_clock_levels *dc_clks,
		enum dm_pp_clock_type dc_clk_type)
{
	uint32_t i;

	if (pp_clks->count > DM_PP_MAX_CLOCK_LEVELS) {
		DRM_INFO("DM_PPLIB: Warning: %s clock: number of levels %d exceeds maximum of %d!\n",
				DC_DECODE_PP_CLOCK_TYPE(dc_clk_type),
				pp_clks->count,
				DM_PP_MAX_CLOCK_LEVELS);

		dc_clks->num_levels = DM_PP_MAX_CLOCK_LEVELS;
	} else
		dc_clks->num_levels = pp_clks->count;

	DRM_INFO("DM_PPLIB: values for %s clock\n",
			DC_DECODE_PP_CLOCK_TYPE(dc_clk_type));

	for (i = 0; i < dc_clks->num_levels; i++) {
		DRM_INFO("DM_PPLIB:\t %d\n", pp_clks->clock[i]);
		/* translate 10kHz to kHz */
		dc_clks->clocks_in_khz[i] = pp_clks->clock[i] * 10;
	}
}

static void pp_to_dc_clock_levels_with_latency(
		const struct pp_clock_levels_with_latency *pp_clks,
		struct dm_pp_clock_levels_with_latency *clk_level_info,
		enum dm_pp_clock_type dc_clk_type)
{
	uint32_t i;

	if (pp_clks->num_levels > DM_PP_MAX_CLOCK_LEVELS) {
		DRM_INFO("DM_PPLIB: Warning: %s clock: number of levels %d exceeds maximum of %d!\n",
				DC_DECODE_PP_CLOCK_TYPE(dc_clk_type),
				pp_clks->num_levels,
				DM_PP_MAX_CLOCK_LEVELS);

		clk_level_info->num_levels = DM_PP_MAX_CLOCK_LEVELS;
	} else
		clk_level_info->num_levels = pp_clks->num_levels;

	DRM_DEBUG("DM_PPLIB: values for %s clock\n",
			DC_DECODE_PP_CLOCK_TYPE(dc_clk_type));

	for (i = 0; i < clk_level_info->num_levels; i++) {
		DRM_DEBUG("DM_PPLIB:\t %d\n", pp_clks->data[i].clocks_in_khz);
		clk_level_info->data[i].clocks_in_khz = pp_clks->data[i].clocks_in_khz;
		clk_level_info->data[i].latency_in_us = pp_clks->data[i].latency_in_us;
	}
}

static void pp_to_dc_clock_levels_with_voltage(
		const struct pp_clock_levels_with_voltage *pp_clks,
		struct dm_pp_clock_levels_with_voltage *clk_level_info,
		enum dm_pp_clock_type dc_clk_type)
{
	uint32_t i;

	if (pp_clks->num_levels > DM_PP_MAX_CLOCK_LEVELS) {
		DRM_INFO("DM_PPLIB: Warning: %s clock: number of levels %d exceeds maximum of %d!\n",
				DC_DECODE_PP_CLOCK_TYPE(dc_clk_type),
				pp_clks->num_levels,
				DM_PP_MAX_CLOCK_LEVELS);

		clk_level_info->num_levels = DM_PP_MAX_CLOCK_LEVELS;
	} else
		clk_level_info->num_levels = pp_clks->num_levels;

	DRM_INFO("DM_PPLIB: values for %s clock\n",
			DC_DECODE_PP_CLOCK_TYPE(dc_clk_type));

	for (i = 0; i < clk_level_info->num_levels; i++) {
		DRM_INFO("DM_PPLIB:\t %d\n", pp_clks->data[i].clocks_in_khz);
		clk_level_info->data[i].clocks_in_khz = pp_clks->data[i].clocks_in_khz;
		clk_level_info->data[i].voltage_in_mv = pp_clks->data[i].voltage_in_mv;
	}
}


bool dm_pp_get_clock_levels_by_type(
		const struct dc_context *ctx,
		enum dm_pp_clock_type clk_type,
		struct dm_pp_clock_levels *dc_clks)
{
	struct amdgpu_device *adev = ctx->driver_context;
	void *pp_handle = adev->powerplay.pp_handle;
	struct amd_pp_clocks pp_clks = { 0 };
	struct amd_pp_simple_clock_info validation_clks = { 0 };
	uint32_t i;

	if (adev->powerplay.pp_funcs->get_clock_by_type) {
		if (adev->powerplay.pp_funcs->get_clock_by_type(pp_handle,
			dc_to_pp_clock_type(clk_type), &pp_clks)) {
		/* Error in pplib. Provide default values. */
			get_default_clock_levels(clk_type, dc_clks);
			return true;
		}
	}

	pp_to_dc_clock_levels(&pp_clks, dc_clks, clk_type);

	if (adev->powerplay.pp_funcs->get_display_mode_validation_clocks) {
		if (adev->powerplay.pp_funcs->get_display_mode_validation_clocks(
						pp_handle, &validation_clks)) {
			/* Error in pplib. Provide default values. */
			DRM_INFO("DM_PPLIB: Warning: using default validation clocks!\n");
			validation_clks.engine_max_clock = 72000;
			validation_clks.memory_max_clock = 80000;
			validation_clks.level = 0;
		}
	}

	DRM_INFO("DM_PPLIB: Validation clocks:\n");
	DRM_INFO("DM_PPLIB:    engine_max_clock: %d\n",
			validation_clks.engine_max_clock);
	DRM_INFO("DM_PPLIB:    memory_max_clock: %d\n",
			validation_clks.memory_max_clock);
	DRM_INFO("DM_PPLIB:    level           : %d\n",
			validation_clks.level);

	/* Translate 10 kHz to kHz. */
	validation_clks.engine_max_clock *= 10;
	validation_clks.memory_max_clock *= 10;

	/* Determine the highest non-boosted level from the Validation Clocks */
	if (clk_type == DM_PP_CLOCK_TYPE_ENGINE_CLK) {
		for (i = 0; i < dc_clks->num_levels; i++) {
			if (dc_clks->clocks_in_khz[i] > validation_clks.engine_max_clock) {
				/* This clock is higher the validation clock.
				 * Than means the previous one is the highest
				 * non-boosted one. */
				DRM_INFO("DM_PPLIB: reducing engine clock level from %d to %d\n",
						dc_clks->num_levels, i);
				dc_clks->num_levels = i > 0 ? i : 1;
				break;
			}
		}
	} else if (clk_type == DM_PP_CLOCK_TYPE_MEMORY_CLK) {
		for (i = 0; i < dc_clks->num_levels; i++) {
			if (dc_clks->clocks_in_khz[i] > validation_clks.memory_max_clock) {
				DRM_INFO("DM_PPLIB: reducing memory clock level from %d to %d\n",
						dc_clks->num_levels, i);
				dc_clks->num_levels = i > 0 ? i : 1;
				break;
			}
		}
	}

	return true;
}

bool dm_pp_get_clock_levels_by_type_with_latency(
	const struct dc_context *ctx,
	enum dm_pp_clock_type clk_type,
	struct dm_pp_clock_levels_with_latency *clk_level_info)
{
	struct amdgpu_device *adev = ctx->driver_context;
	void *pp_handle = adev->powerplay.pp_handle;
	struct pp_clock_levels_with_latency pp_clks = { 0 };
	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;

	if (!pp_funcs || !pp_funcs->get_clock_by_type_with_latency)
		return false;

	if (pp_funcs->get_clock_by_type_with_latency(pp_handle,
						     dc_to_pp_clock_type(clk_type),
						     &pp_clks))
		return false;

	pp_to_dc_clock_levels_with_latency(&pp_clks, clk_level_info, clk_type);

	return true;
}

bool dm_pp_get_clock_levels_by_type_with_voltage(
	const struct dc_context *ctx,
	enum dm_pp_clock_type clk_type,
	struct dm_pp_clock_levels_with_voltage *clk_level_info)
{
	struct amdgpu_device *adev = ctx->driver_context;
	void *pp_handle = adev->powerplay.pp_handle;
	struct pp_clock_levels_with_voltage pp_clk_info = {0};
	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;

	if (pp_funcs->get_clock_by_type_with_voltage(pp_handle,
						     dc_to_pp_clock_type(clk_type),
						     &pp_clk_info))
		return false;

	pp_to_dc_clock_levels_with_voltage(&pp_clk_info, clk_level_info, clk_type);

	return true;
}

bool dm_pp_notify_wm_clock_changes(
	const struct dc_context *ctx,
	struct dm_pp_wm_sets_with_clock_ranges *wm_with_clock_ranges)
{
	/* TODO: to be implemented */
	return false;
}

bool dm_pp_apply_power_level_change_request(
	const struct dc_context *ctx,
	struct dm_pp_power_level_change_request *level_change_req)
{
	/* TODO: to be implemented */
	return false;
}

bool dm_pp_apply_clock_for_voltage_request(
	const struct dc_context *ctx,
	struct dm_pp_clock_for_voltage_req *clock_for_voltage_req)
{
	/* TODO: to be implemented */
	return false;
}

bool dm_pp_get_static_clocks(
	const struct dc_context *ctx,
	struct dm_pp_static_clock_info *static_clk_info)
{
	/* TODO: to be implemented */
	return false;
}

void dm_pp_get_funcs_rv(
		struct dc_context *ctx,
		struct pp_smu_funcs_rv *funcs)
{}

/**** end of power component interfaces ****/