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1/*
2 * Copyright 2016 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 "mod_stats.h"
27#include "dm_services.h"
28#include "dc.h"
29#include "core_types.h"
30
31#define DAL_STATS_ENABLE_REGKEY "DalStatsEnable"
32#define DAL_STATS_ENABLE_REGKEY_DEFAULT 0x00000000
33#define DAL_STATS_ENABLE_REGKEY_ENABLED 0x00000001
34
35#define DAL_STATS_ENTRIES_REGKEY "DalStatsEntries"
36#define DAL_STATS_ENTRIES_REGKEY_DEFAULT 0x00350000
37#define DAL_STATS_ENTRIES_REGKEY_MAX 0x01000000
38
39#define DAL_STATS_EVENT_ENTRIES_DEFAULT 0x00000100
40
41#define MOD_STATS_NUM_VSYNCS 5
42#define MOD_STATS_EVENT_STRING_MAX 512
43
44struct stats_time_cache {
45 unsigned int entry_id;
46
47 unsigned long flip_timestamp_in_ns;
48 unsigned long vupdate_timestamp_in_ns;
49
50 unsigned int render_time_in_us;
51 unsigned int avg_render_time_in_us_last_ten;
52 unsigned int v_sync_time_in_us[MOD_STATS_NUM_VSYNCS];
53 unsigned int num_vsync_between_flips;
54
55 unsigned int flip_to_vsync_time_in_us;
56 unsigned int vsync_to_flip_time_in_us;
57
58 unsigned int min_window;
59 unsigned int max_window;
60 unsigned int v_total_min;
61 unsigned int v_total_max;
62 unsigned int event_triggers;
63
64 unsigned int lfc_mid_point_in_us;
65 unsigned int num_frames_inserted;
66 unsigned int inserted_duration_in_us;
67
68 unsigned int flags;
69};
70
71struct stats_event_cache {
72 unsigned int entry_id;
73 char event_string[MOD_STATS_EVENT_STRING_MAX];
74};
75
76struct core_stats {
77 struct mod_stats public;
78 struct dc *dc;
79
80 bool enabled;
81 unsigned int entries;
82 unsigned int event_entries;
83 unsigned int entry_id;
84
85 struct stats_time_cache *time;
86 unsigned int index;
87
88 struct stats_event_cache *events;
89 unsigned int event_index;
90
91};
92
93#define MOD_STATS_TO_CORE(mod_stats)\
94 container_of(mod_stats, struct core_stats, public)
95
96bool mod_stats_init(struct mod_stats *mod_stats)
97{
98 bool result = false;
99 struct core_stats *core_stats = NULL;
100 struct dc *dc = NULL;
101
102 if (mod_stats == NULL)
103 return false;
104
105 core_stats = MOD_STATS_TO_CORE(mod_stats);
106 dc = core_stats->dc;
107
108 return result;
109}
110
111struct mod_stats *mod_stats_create(struct dc *dc)
112{
113 struct core_stats *core_stats = NULL;
114 struct persistent_data_flag flag;
115 unsigned int reg_data;
116 int i = 0;
117
118 if (dc == NULL)
119 goto fail_construct;
120
121 core_stats = kzalloc(sizeof(struct core_stats), GFP_KERNEL);
122
123 if (core_stats == NULL)
124 goto fail_construct;
125
126 core_stats->dc = dc;
127
128 core_stats->enabled = DAL_STATS_ENABLE_REGKEY_DEFAULT;
129 if (dm_read_persistent_data(dc->ctx, NULL, NULL,
130 DAL_STATS_ENABLE_REGKEY,
131 ®_data, sizeof(unsigned int), &flag))
132 core_stats->enabled = reg_data;
133
134 if (core_stats->enabled) {
135 core_stats->entries = DAL_STATS_ENTRIES_REGKEY_DEFAULT;
136 if (dm_read_persistent_data(dc->ctx, NULL, NULL,
137 DAL_STATS_ENTRIES_REGKEY,
138 ®_data, sizeof(unsigned int), &flag)) {
139 if (reg_data > DAL_STATS_ENTRIES_REGKEY_MAX)
140 core_stats->entries = DAL_STATS_ENTRIES_REGKEY_MAX;
141 else
142 core_stats->entries = reg_data;
143 }
144 core_stats->time = kcalloc(core_stats->entries,
145 sizeof(struct stats_time_cache),
146 GFP_KERNEL);
147
148 if (core_stats->time == NULL)
149 goto fail_construct_time;
150
151 core_stats->event_entries = DAL_STATS_EVENT_ENTRIES_DEFAULT;
152 core_stats->events = kcalloc(core_stats->event_entries,
153 sizeof(struct stats_event_cache),
154 GFP_KERNEL);
155
156 if (core_stats->events == NULL)
157 goto fail_construct_events;
158
159 } else {
160 core_stats->entries = 0;
161 }
162
163 /* Purposely leave index 0 unused so we don't need special logic to
164 * handle calculation cases that depend on previous flip data.
165 */
166 core_stats->index = 1;
167 core_stats->event_index = 0;
168
169 // Keeps track of ordering within the different stats structures
170 core_stats->entry_id = 0;
171
172 return &core_stats->public;
173
174fail_construct_events:
175 kfree(core_stats->time);
176
177fail_construct_time:
178 kfree(core_stats);
179
180fail_construct:
181 return NULL;
182}
183
184void mod_stats_destroy(struct mod_stats *mod_stats)
185{
186 if (mod_stats != NULL) {
187 struct core_stats *core_stats = MOD_STATS_TO_CORE(mod_stats);
188
189 kfree(core_stats->time);
190 kfree(core_stats->events);
191 kfree(core_stats);
192 }
193}
194
195void mod_stats_dump(struct mod_stats *mod_stats)
196{
197 struct dc *dc = NULL;
198 struct dal_logger *logger = NULL;
199 struct core_stats *core_stats = NULL;
200 struct stats_time_cache *time = NULL;
201 struct stats_event_cache *events = NULL;
202 unsigned int time_index = 1;
203 unsigned int event_index = 0;
204 unsigned int index = 0;
205 struct log_entry log_entry;
206
207 if (mod_stats == NULL)
208 return;
209
210 core_stats = MOD_STATS_TO_CORE(mod_stats);
211 dc = core_stats->dc;
212 logger = dc->ctx->logger;
213 time = core_stats->time;
214 events = core_stats->events;
215
216 DISPLAY_STATS_BEGIN(log_entry);
217
218 DISPLAY_STATS("==Display Caps==\n");
219
220 DISPLAY_STATS("==Display Stats==\n");
221
222 DISPLAY_STATS("%10s %10s %10s %10s %10s"
223 " %11s %11s %17s %10s %14s"
224 " %10s %10s %10s %10s %10s"
225 " %10s %10s %10s %10s\n",
226 "render", "avgRender",
227 "minWindow", "midPoint", "maxWindow",
228 "vsyncToFlip", "flipToVsync", "vsyncsBetweenFlip",
229 "numFrame", "insertDuration",
230 "vTotalMin", "vTotalMax", "eventTrigs",
231 "vSyncTime1", "vSyncTime2", "vSyncTime3",
232 "vSyncTime4", "vSyncTime5", "flags");
233
234 for (int i = 0; i < core_stats->entry_id; i++) {
235 if (event_index < core_stats->event_index &&
236 i == events[event_index].entry_id) {
237 DISPLAY_STATS("==Event==%s\n", events[event_index].event_string);
238 event_index++;
239 } else if (time_index < core_stats->index &&
240 i == time[time_index].entry_id) {
241 DISPLAY_STATS("%10u %10u %10u %10u %10u"
242 " %11u %11u %17u %10u %14u"
243 " %10u %10u %10u %10u %10u"
244 " %10u %10u %10u %10u\n",
245 time[time_index].render_time_in_us,
246 time[time_index].avg_render_time_in_us_last_ten,
247 time[time_index].min_window,
248 time[time_index].lfc_mid_point_in_us,
249 time[time_index].max_window,
250 time[time_index].vsync_to_flip_time_in_us,
251 time[time_index].flip_to_vsync_time_in_us,
252 time[time_index].num_vsync_between_flips,
253 time[time_index].num_frames_inserted,
254 time[time_index].inserted_duration_in_us,
255 time[time_index].v_total_min,
256 time[time_index].v_total_max,
257 time[time_index].event_triggers,
258 time[time_index].v_sync_time_in_us[0],
259 time[time_index].v_sync_time_in_us[1],
260 time[time_index].v_sync_time_in_us[2],
261 time[time_index].v_sync_time_in_us[3],
262 time[time_index].v_sync_time_in_us[4],
263 time[time_index].flags);
264
265 time_index++;
266 }
267 }
268
269 DISPLAY_STATS_END(log_entry);
270}
271
272void mod_stats_reset_data(struct mod_stats *mod_stats)
273{
274 struct core_stats *core_stats = NULL;
275 struct stats_time_cache *time = NULL;
276 unsigned int index = 0;
277
278 if (mod_stats == NULL)
279 return;
280
281 core_stats = MOD_STATS_TO_CORE(mod_stats);
282
283 memset(core_stats->time, 0,
284 sizeof(struct stats_time_cache) * core_stats->entries);
285
286 memset(core_stats->events, 0,
287 sizeof(struct stats_event_cache) * core_stats->event_entries);
288
289 core_stats->index = 1;
290 core_stats->event_index = 0;
291
292 // Keeps track of ordering within the different stats structures
293 core_stats->entry_id = 0;
294}
295
296void mod_stats_update_event(struct mod_stats *mod_stats,
297 char *event_string,
298 unsigned int length)
299{
300 struct core_stats *core_stats = NULL;
301 struct stats_event_cache *events = NULL;
302 unsigned int index = 0;
303 unsigned int copy_length = 0;
304
305 if (mod_stats == NULL)
306 return;
307
308 core_stats = MOD_STATS_TO_CORE(mod_stats);
309
310 if (core_stats->event_index >= core_stats->event_entries)
311 return;
312
313 events = core_stats->events;
314 index = core_stats->event_index;
315
316 copy_length = length;
317 if (length > MOD_STATS_EVENT_STRING_MAX)
318 copy_length = MOD_STATS_EVENT_STRING_MAX;
319
320 memcpy(&events[index].event_string, event_string, copy_length);
321 events[index].event_string[copy_length - 1] = '\0';
322
323 events[index].entry_id = core_stats->entry_id;
324 core_stats->event_index++;
325 core_stats->entry_id++;
326}
327
328void mod_stats_update_flip(struct mod_stats *mod_stats,
329 unsigned long timestamp_in_ns)
330{
331 struct core_stats *core_stats = NULL;
332 struct stats_time_cache *time = NULL;
333 unsigned int index = 0;
334
335 if (mod_stats == NULL)
336 return;
337
338 core_stats = MOD_STATS_TO_CORE(mod_stats);
339
340 if (core_stats->index >= core_stats->entries)
341 return;
342
343 time = core_stats->time;
344 index = core_stats->index;
345
346 time[index].flip_timestamp_in_ns = timestamp_in_ns;
347 time[index].render_time_in_us =
348 (timestamp_in_ns - time[index - 1].flip_timestamp_in_ns) / 1000;
349
350 if (index >= 10) {
351 for (unsigned int i = 0; i < 10; i++)
352 time[index].avg_render_time_in_us_last_ten +=
353 time[index - i].render_time_in_us;
354 time[index].avg_render_time_in_us_last_ten /= 10;
355 }
356
357 if (time[index].num_vsync_between_flips > 0)
358 time[index].vsync_to_flip_time_in_us =
359 (timestamp_in_ns -
360 time[index].vupdate_timestamp_in_ns) / 1000;
361 else
362 time[index].vsync_to_flip_time_in_us =
363 (timestamp_in_ns -
364 time[index - 1].vupdate_timestamp_in_ns) / 1000;
365
366 time[index].entry_id = core_stats->entry_id;
367 core_stats->index++;
368 core_stats->entry_id++;
369}
370
371void mod_stats_update_vupdate(struct mod_stats *mod_stats,
372 unsigned long timestamp_in_ns)
373{
374 struct core_stats *core_stats = NULL;
375 struct stats_time_cache *time = NULL;
376 unsigned int index = 0;
377 unsigned int num_vsyncs = 0;
378 unsigned int prev_vsync_in_ns = 0;
379
380 if (mod_stats == NULL)
381 return;
382
383 core_stats = MOD_STATS_TO_CORE(mod_stats);
384
385 if (core_stats->index >= core_stats->entries)
386 return;
387
388 time = core_stats->time;
389 index = core_stats->index;
390 num_vsyncs = time[index].num_vsync_between_flips;
391
392 if (num_vsyncs < MOD_STATS_NUM_VSYNCS) {
393 if (num_vsyncs == 0) {
394 prev_vsync_in_ns =
395 time[index - 1].vupdate_timestamp_in_ns;
396
397 time[index].flip_to_vsync_time_in_us =
398 (timestamp_in_ns -
399 time[index - 1].flip_timestamp_in_ns) /
400 1000;
401 } else {
402 prev_vsync_in_ns =
403 time[index].vupdate_timestamp_in_ns;
404 }
405
406 time[index].v_sync_time_in_us[num_vsyncs] =
407 (timestamp_in_ns - prev_vsync_in_ns) / 1000;
408 }
409
410 time[index].vupdate_timestamp_in_ns = timestamp_in_ns;
411 time[index].num_vsync_between_flips++;
412}
413
414void mod_stats_update_freesync(struct mod_stats *mod_stats,
415 unsigned int v_total_min,
416 unsigned int v_total_max,
417 unsigned int event_triggers,
418 unsigned int window_min,
419 unsigned int window_max,
420 unsigned int lfc_mid_point_in_us,
421 unsigned int inserted_frames,
422 unsigned int inserted_duration_in_us)
423{
424 struct core_stats *core_stats = NULL;
425 struct stats_time_cache *time = NULL;
426 unsigned int index = 0;
427
428 if (mod_stats == NULL)
429 return;
430
431 core_stats = MOD_STATS_TO_CORE(mod_stats);
432
433 if (core_stats->index >= core_stats->entries)
434 return;
435
436 time = core_stats->time;
437 index = core_stats->index;
438
439 time[index].v_total_min = v_total_min;
440 time[index].v_total_max = v_total_max;
441 time[index].event_triggers = event_triggers;
442 time[index].min_window = window_min;
443 time[index].max_window = window_max;
444 time[index].lfc_mid_point_in_us = lfc_mid_point_in_us;
445 time[index].num_frames_inserted = inserted_frames;
446 time[index].inserted_duration_in_us = inserted_duration_in_us;
447}
448