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drm/i915: Split idling from forcing context switch
[deliverable/linux.git] / drivers / gpu / drm / i915 / i915_debugfs.c
1 /*
2 * Copyright © 2008 Intel Corporation
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 (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 *
23 * Authors:
24 * Eric Anholt <eric@anholt.net>
25 * Keith Packard <keithp@keithp.com>
26 *
27 */
28
29 #include <linux/seq_file.h>
30 #include <linux/circ_buf.h>
31 #include <linux/ctype.h>
32 #include <linux/debugfs.h>
33 #include <linux/slab.h>
34 #include <linux/export.h>
35 #include <linux/list_sort.h>
36 #include <asm/msr-index.h>
37 #include <drm/drmP.h>
38 #include "intel_drv.h"
39 #include "intel_ringbuffer.h"
40 #include <drm/i915_drm.h>
41 #include "i915_drv.h"
42
43 enum {
44 ACTIVE_LIST,
45 INACTIVE_LIST,
46 PINNED_LIST,
47 };
48
49 /* As the drm_debugfs_init() routines are called before dev->dev_private is
50 * allocated we need to hook into the minor for release. */
51 static int
52 drm_add_fake_info_node(struct drm_minor *minor,
53 struct dentry *ent,
54 const void *key)
55 {
56 struct drm_info_node *node;
57
58 node = kmalloc(sizeof(*node), GFP_KERNEL);
59 if (node == NULL) {
60 debugfs_remove(ent);
61 return -ENOMEM;
62 }
63
64 node->minor = minor;
65 node->dent = ent;
66 node->info_ent = (void *) key;
67
68 mutex_lock(&minor->debugfs_lock);
69 list_add(&node->list, &minor->debugfs_list);
70 mutex_unlock(&minor->debugfs_lock);
71
72 return 0;
73 }
74
75 static int i915_capabilities(struct seq_file *m, void *data)
76 {
77 struct drm_info_node *node = m->private;
78 struct drm_device *dev = node->minor->dev;
79 const struct intel_device_info *info = INTEL_INFO(dev);
80
81 seq_printf(m, "gen: %d\n", info->gen);
82 seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev));
83 #define PRINT_FLAG(x) seq_printf(m, #x ": %s\n", yesno(info->x))
84 #define SEP_SEMICOLON ;
85 DEV_INFO_FOR_EACH_FLAG(PRINT_FLAG, SEP_SEMICOLON);
86 #undef PRINT_FLAG
87 #undef SEP_SEMICOLON
88
89 return 0;
90 }
91
92 static char get_active_flag(struct drm_i915_gem_object *obj)
93 {
94 return obj->active ? '*' : ' ';
95 }
96
97 static char get_pin_flag(struct drm_i915_gem_object *obj)
98 {
99 return obj->pin_display ? 'p' : ' ';
100 }
101
102 static char get_tiling_flag(struct drm_i915_gem_object *obj)
103 {
104 switch (obj->tiling_mode) {
105 default:
106 case I915_TILING_NONE: return ' ';
107 case I915_TILING_X: return 'X';
108 case I915_TILING_Y: return 'Y';
109 }
110 }
111
112 static char get_global_flag(struct drm_i915_gem_object *obj)
113 {
114 return i915_gem_obj_to_ggtt(obj) ? 'g' : ' ';
115 }
116
117 static char get_pin_mapped_flag(struct drm_i915_gem_object *obj)
118 {
119 return obj->mapping ? 'M' : ' ';
120 }
121
122 static u64 i915_gem_obj_total_ggtt_size(struct drm_i915_gem_object *obj)
123 {
124 u64 size = 0;
125 struct i915_vma *vma;
126
127 list_for_each_entry(vma, &obj->vma_list, obj_link) {
128 if (vma->is_ggtt && drm_mm_node_allocated(&vma->node))
129 size += vma->node.size;
130 }
131
132 return size;
133 }
134
135 static void
136 describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
137 {
138 struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
139 struct intel_engine_cs *engine;
140 struct i915_vma *vma;
141 int pin_count = 0;
142 enum intel_engine_id id;
143
144 lockdep_assert_held(&obj->base.dev->struct_mutex);
145
146 seq_printf(m, "%pK: %c%c%c%c%c %8zdKiB %02x %02x [ ",
147 &obj->base,
148 get_active_flag(obj),
149 get_pin_flag(obj),
150 get_tiling_flag(obj),
151 get_global_flag(obj),
152 get_pin_mapped_flag(obj),
153 obj->base.size / 1024,
154 obj->base.read_domains,
155 obj->base.write_domain);
156 for_each_engine_id(engine, dev_priv, id)
157 seq_printf(m, "%x ",
158 i915_gem_request_get_seqno(obj->last_read_req[id]));
159 seq_printf(m, "] %x %x%s%s%s",
160 i915_gem_request_get_seqno(obj->last_write_req),
161 i915_gem_request_get_seqno(obj->last_fenced_req),
162 i915_cache_level_str(to_i915(obj->base.dev), obj->cache_level),
163 obj->dirty ? " dirty" : "",
164 obj->madv == I915_MADV_DONTNEED ? " purgeable" : "");
165 if (obj->base.name)
166 seq_printf(m, " (name: %d)", obj->base.name);
167 list_for_each_entry(vma, &obj->vma_list, obj_link) {
168 if (vma->pin_count > 0)
169 pin_count++;
170 }
171 seq_printf(m, " (pinned x %d)", pin_count);
172 if (obj->pin_display)
173 seq_printf(m, " (display)");
174 if (obj->fence_reg != I915_FENCE_REG_NONE)
175 seq_printf(m, " (fence: %d)", obj->fence_reg);
176 list_for_each_entry(vma, &obj->vma_list, obj_link) {
177 seq_printf(m, " (%sgtt offset: %08llx, size: %08llx",
178 vma->is_ggtt ? "g" : "pp",
179 vma->node.start, vma->node.size);
180 if (vma->is_ggtt)
181 seq_printf(m, ", type: %u", vma->ggtt_view.type);
182 seq_puts(m, ")");
183 }
184 if (obj->stolen)
185 seq_printf(m, " (stolen: %08llx)", obj->stolen->start);
186 if (obj->pin_display || obj->fault_mappable) {
187 char s[3], *t = s;
188 if (obj->pin_display)
189 *t++ = 'p';
190 if (obj->fault_mappable)
191 *t++ = 'f';
192 *t = '\0';
193 seq_printf(m, " (%s mappable)", s);
194 }
195 if (obj->last_write_req != NULL)
196 seq_printf(m, " (%s)",
197 i915_gem_request_get_engine(obj->last_write_req)->name);
198 if (obj->frontbuffer_bits)
199 seq_printf(m, " (frontbuffer: 0x%03x)", obj->frontbuffer_bits);
200 }
201
202 static int i915_gem_object_list_info(struct seq_file *m, void *data)
203 {
204 struct drm_info_node *node = m->private;
205 uintptr_t list = (uintptr_t) node->info_ent->data;
206 struct list_head *head;
207 struct drm_device *dev = node->minor->dev;
208 struct drm_i915_private *dev_priv = to_i915(dev);
209 struct i915_ggtt *ggtt = &dev_priv->ggtt;
210 struct i915_vma *vma;
211 u64 total_obj_size, total_gtt_size;
212 int count, ret;
213
214 ret = mutex_lock_interruptible(&dev->struct_mutex);
215 if (ret)
216 return ret;
217
218 /* FIXME: the user of this interface might want more than just GGTT */
219 switch (list) {
220 case ACTIVE_LIST:
221 seq_puts(m, "Active:\n");
222 head = &ggtt->base.active_list;
223 break;
224 case INACTIVE_LIST:
225 seq_puts(m, "Inactive:\n");
226 head = &ggtt->base.inactive_list;
227 break;
228 default:
229 mutex_unlock(&dev->struct_mutex);
230 return -EINVAL;
231 }
232
233 total_obj_size = total_gtt_size = count = 0;
234 list_for_each_entry(vma, head, vm_link) {
235 seq_printf(m, " ");
236 describe_obj(m, vma->obj);
237 seq_printf(m, "\n");
238 total_obj_size += vma->obj->base.size;
239 total_gtt_size += vma->node.size;
240 count++;
241 }
242 mutex_unlock(&dev->struct_mutex);
243
244 seq_printf(m, "Total %d objects, %llu bytes, %llu GTT size\n",
245 count, total_obj_size, total_gtt_size);
246 return 0;
247 }
248
249 static int obj_rank_by_stolen(void *priv,
250 struct list_head *A, struct list_head *B)
251 {
252 struct drm_i915_gem_object *a =
253 container_of(A, struct drm_i915_gem_object, obj_exec_link);
254 struct drm_i915_gem_object *b =
255 container_of(B, struct drm_i915_gem_object, obj_exec_link);
256
257 if (a->stolen->start < b->stolen->start)
258 return -1;
259 if (a->stolen->start > b->stolen->start)
260 return 1;
261 return 0;
262 }
263
264 static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
265 {
266 struct drm_info_node *node = m->private;
267 struct drm_device *dev = node->minor->dev;
268 struct drm_i915_private *dev_priv = dev->dev_private;
269 struct drm_i915_gem_object *obj;
270 u64 total_obj_size, total_gtt_size;
271 LIST_HEAD(stolen);
272 int count, ret;
273
274 ret = mutex_lock_interruptible(&dev->struct_mutex);
275 if (ret)
276 return ret;
277
278 total_obj_size = total_gtt_size = count = 0;
279 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
280 if (obj->stolen == NULL)
281 continue;
282
283 list_add(&obj->obj_exec_link, &stolen);
284
285 total_obj_size += obj->base.size;
286 total_gtt_size += i915_gem_obj_total_ggtt_size(obj);
287 count++;
288 }
289 list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) {
290 if (obj->stolen == NULL)
291 continue;
292
293 list_add(&obj->obj_exec_link, &stolen);
294
295 total_obj_size += obj->base.size;
296 count++;
297 }
298 list_sort(NULL, &stolen, obj_rank_by_stolen);
299 seq_puts(m, "Stolen:\n");
300 while (!list_empty(&stolen)) {
301 obj = list_first_entry(&stolen, typeof(*obj), obj_exec_link);
302 seq_puts(m, " ");
303 describe_obj(m, obj);
304 seq_putc(m, '\n');
305 list_del_init(&obj->obj_exec_link);
306 }
307 mutex_unlock(&dev->struct_mutex);
308
309 seq_printf(m, "Total %d objects, %llu bytes, %llu GTT size\n",
310 count, total_obj_size, total_gtt_size);
311 return 0;
312 }
313
314 #define count_objects(list, member) do { \
315 list_for_each_entry(obj, list, member) { \
316 size += i915_gem_obj_total_ggtt_size(obj); \
317 ++count; \
318 if (obj->map_and_fenceable) { \
319 mappable_size += i915_gem_obj_ggtt_size(obj); \
320 ++mappable_count; \
321 } \
322 } \
323 } while (0)
324
325 struct file_stats {
326 struct drm_i915_file_private *file_priv;
327 unsigned long count;
328 u64 total, unbound;
329 u64 global, shared;
330 u64 active, inactive;
331 };
332
333 static int per_file_stats(int id, void *ptr, void *data)
334 {
335 struct drm_i915_gem_object *obj = ptr;
336 struct file_stats *stats = data;
337 struct i915_vma *vma;
338
339 stats->count++;
340 stats->total += obj->base.size;
341
342 if (obj->base.name || obj->base.dma_buf)
343 stats->shared += obj->base.size;
344
345 if (USES_FULL_PPGTT(obj->base.dev)) {
346 list_for_each_entry(vma, &obj->vma_list, obj_link) {
347 struct i915_hw_ppgtt *ppgtt;
348
349 if (!drm_mm_node_allocated(&vma->node))
350 continue;
351
352 if (vma->is_ggtt) {
353 stats->global += obj->base.size;
354 continue;
355 }
356
357 ppgtt = container_of(vma->vm, struct i915_hw_ppgtt, base);
358 if (ppgtt->file_priv != stats->file_priv)
359 continue;
360
361 if (obj->active) /* XXX per-vma statistic */
362 stats->active += obj->base.size;
363 else
364 stats->inactive += obj->base.size;
365
366 return 0;
367 }
368 } else {
369 if (i915_gem_obj_ggtt_bound(obj)) {
370 stats->global += obj->base.size;
371 if (obj->active)
372 stats->active += obj->base.size;
373 else
374 stats->inactive += obj->base.size;
375 return 0;
376 }
377 }
378
379 if (!list_empty(&obj->global_list))
380 stats->unbound += obj->base.size;
381
382 return 0;
383 }
384
385 #define print_file_stats(m, name, stats) do { \
386 if (stats.count) \
387 seq_printf(m, "%s: %lu objects, %llu bytes (%llu active, %llu inactive, %llu global, %llu shared, %llu unbound)\n", \
388 name, \
389 stats.count, \
390 stats.total, \
391 stats.active, \
392 stats.inactive, \
393 stats.global, \
394 stats.shared, \
395 stats.unbound); \
396 } while (0)
397
398 static void print_batch_pool_stats(struct seq_file *m,
399 struct drm_i915_private *dev_priv)
400 {
401 struct drm_i915_gem_object *obj;
402 struct file_stats stats;
403 struct intel_engine_cs *engine;
404 int j;
405
406 memset(&stats, 0, sizeof(stats));
407
408 for_each_engine(engine, dev_priv) {
409 for (j = 0; j < ARRAY_SIZE(engine->batch_pool.cache_list); j++) {
410 list_for_each_entry(obj,
411 &engine->batch_pool.cache_list[j],
412 batch_pool_link)
413 per_file_stats(0, obj, &stats);
414 }
415 }
416
417 print_file_stats(m, "[k]batch pool", stats);
418 }
419
420 static int per_file_ctx_stats(int id, void *ptr, void *data)
421 {
422 struct i915_gem_context *ctx = ptr;
423 int n;
424
425 for (n = 0; n < ARRAY_SIZE(ctx->engine); n++) {
426 if (ctx->engine[n].state)
427 per_file_stats(0, ctx->engine[n].state, data);
428 if (ctx->engine[n].ringbuf)
429 per_file_stats(0, ctx->engine[n].ringbuf->obj, data);
430 }
431
432 return 0;
433 }
434
435 static void print_context_stats(struct seq_file *m,
436 struct drm_i915_private *dev_priv)
437 {
438 struct file_stats stats;
439 struct drm_file *file;
440
441 memset(&stats, 0, sizeof(stats));
442
443 mutex_lock(&dev_priv->dev->struct_mutex);
444 if (dev_priv->kernel_context)
445 per_file_ctx_stats(0, dev_priv->kernel_context, &stats);
446
447 list_for_each_entry(file, &dev_priv->dev->filelist, lhead) {
448 struct drm_i915_file_private *fpriv = file->driver_priv;
449 idr_for_each(&fpriv->context_idr, per_file_ctx_stats, &stats);
450 }
451 mutex_unlock(&dev_priv->dev->struct_mutex);
452
453 print_file_stats(m, "[k]contexts", stats);
454 }
455
456 #define count_vmas(list, member) do { \
457 list_for_each_entry(vma, list, member) { \
458 size += i915_gem_obj_total_ggtt_size(vma->obj); \
459 ++count; \
460 if (vma->obj->map_and_fenceable) { \
461 mappable_size += i915_gem_obj_ggtt_size(vma->obj); \
462 ++mappable_count; \
463 } \
464 } \
465 } while (0)
466
467 static int i915_gem_object_info(struct seq_file *m, void* data)
468 {
469 struct drm_info_node *node = m->private;
470 struct drm_device *dev = node->minor->dev;
471 struct drm_i915_private *dev_priv = to_i915(dev);
472 struct i915_ggtt *ggtt = &dev_priv->ggtt;
473 u32 count, mappable_count, purgeable_count;
474 u64 size, mappable_size, purgeable_size;
475 unsigned long pin_mapped_count = 0, pin_mapped_purgeable_count = 0;
476 u64 pin_mapped_size = 0, pin_mapped_purgeable_size = 0;
477 struct drm_i915_gem_object *obj;
478 struct drm_file *file;
479 struct i915_vma *vma;
480 int ret;
481
482 ret = mutex_lock_interruptible(&dev->struct_mutex);
483 if (ret)
484 return ret;
485
486 seq_printf(m, "%u objects, %zu bytes\n",
487 dev_priv->mm.object_count,
488 dev_priv->mm.object_memory);
489
490 size = count = mappable_size = mappable_count = 0;
491 count_objects(&dev_priv->mm.bound_list, global_list);
492 seq_printf(m, "%u [%u] objects, %llu [%llu] bytes in gtt\n",
493 count, mappable_count, size, mappable_size);
494
495 size = count = mappable_size = mappable_count = 0;
496 count_vmas(&ggtt->base.active_list, vm_link);
497 seq_printf(m, " %u [%u] active objects, %llu [%llu] bytes\n",
498 count, mappable_count, size, mappable_size);
499
500 size = count = mappable_size = mappable_count = 0;
501 count_vmas(&ggtt->base.inactive_list, vm_link);
502 seq_printf(m, " %u [%u] inactive objects, %llu [%llu] bytes\n",
503 count, mappable_count, size, mappable_size);
504
505 size = count = purgeable_size = purgeable_count = 0;
506 list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) {
507 size += obj->base.size, ++count;
508 if (obj->madv == I915_MADV_DONTNEED)
509 purgeable_size += obj->base.size, ++purgeable_count;
510 if (obj->mapping) {
511 pin_mapped_count++;
512 pin_mapped_size += obj->base.size;
513 if (obj->pages_pin_count == 0) {
514 pin_mapped_purgeable_count++;
515 pin_mapped_purgeable_size += obj->base.size;
516 }
517 }
518 }
519 seq_printf(m, "%u unbound objects, %llu bytes\n", count, size);
520
521 size = count = mappable_size = mappable_count = 0;
522 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
523 if (obj->fault_mappable) {
524 size += i915_gem_obj_ggtt_size(obj);
525 ++count;
526 }
527 if (obj->pin_display) {
528 mappable_size += i915_gem_obj_ggtt_size(obj);
529 ++mappable_count;
530 }
531 if (obj->madv == I915_MADV_DONTNEED) {
532 purgeable_size += obj->base.size;
533 ++purgeable_count;
534 }
535 if (obj->mapping) {
536 pin_mapped_count++;
537 pin_mapped_size += obj->base.size;
538 if (obj->pages_pin_count == 0) {
539 pin_mapped_purgeable_count++;
540 pin_mapped_purgeable_size += obj->base.size;
541 }
542 }
543 }
544 seq_printf(m, "%u purgeable objects, %llu bytes\n",
545 purgeable_count, purgeable_size);
546 seq_printf(m, "%u pinned mappable objects, %llu bytes\n",
547 mappable_count, mappable_size);
548 seq_printf(m, "%u fault mappable objects, %llu bytes\n",
549 count, size);
550 seq_printf(m,
551 "%lu [%lu] pin mapped objects, %llu [%llu] bytes [purgeable]\n",
552 pin_mapped_count, pin_mapped_purgeable_count,
553 pin_mapped_size, pin_mapped_purgeable_size);
554
555 seq_printf(m, "%llu [%llu] gtt total\n",
556 ggtt->base.total, ggtt->mappable_end - ggtt->base.start);
557
558 seq_putc(m, '\n');
559 print_batch_pool_stats(m, dev_priv);
560 mutex_unlock(&dev->struct_mutex);
561
562 mutex_lock(&dev->filelist_mutex);
563 print_context_stats(m, dev_priv);
564 list_for_each_entry_reverse(file, &dev->filelist, lhead) {
565 struct file_stats stats;
566 struct task_struct *task;
567
568 memset(&stats, 0, sizeof(stats));
569 stats.file_priv = file->driver_priv;
570 spin_lock(&file->table_lock);
571 idr_for_each(&file->object_idr, per_file_stats, &stats);
572 spin_unlock(&file->table_lock);
573 /*
574 * Although we have a valid reference on file->pid, that does
575 * not guarantee that the task_struct who called get_pid() is
576 * still alive (e.g. get_pid(current) => fork() => exit()).
577 * Therefore, we need to protect this ->comm access using RCU.
578 */
579 rcu_read_lock();
580 task = pid_task(file->pid, PIDTYPE_PID);
581 print_file_stats(m, task ? task->comm : "<unknown>", stats);
582 rcu_read_unlock();
583 }
584 mutex_unlock(&dev->filelist_mutex);
585
586 return 0;
587 }
588
589 static int i915_gem_gtt_info(struct seq_file *m, void *data)
590 {
591 struct drm_info_node *node = m->private;
592 struct drm_device *dev = node->minor->dev;
593 uintptr_t list = (uintptr_t) node->info_ent->data;
594 struct drm_i915_private *dev_priv = dev->dev_private;
595 struct drm_i915_gem_object *obj;
596 u64 total_obj_size, total_gtt_size;
597 int count, ret;
598
599 ret = mutex_lock_interruptible(&dev->struct_mutex);
600 if (ret)
601 return ret;
602
603 total_obj_size = total_gtt_size = count = 0;
604 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
605 if (list == PINNED_LIST && !i915_gem_obj_is_pinned(obj))
606 continue;
607
608 seq_puts(m, " ");
609 describe_obj(m, obj);
610 seq_putc(m, '\n');
611 total_obj_size += obj->base.size;
612 total_gtt_size += i915_gem_obj_total_ggtt_size(obj);
613 count++;
614 }
615
616 mutex_unlock(&dev->struct_mutex);
617
618 seq_printf(m, "Total %d objects, %llu bytes, %llu GTT size\n",
619 count, total_obj_size, total_gtt_size);
620
621 return 0;
622 }
623
624 static int i915_gem_pageflip_info(struct seq_file *m, void *data)
625 {
626 struct drm_info_node *node = m->private;
627 struct drm_device *dev = node->minor->dev;
628 struct drm_i915_private *dev_priv = dev->dev_private;
629 struct intel_crtc *crtc;
630 int ret;
631
632 ret = mutex_lock_interruptible(&dev->struct_mutex);
633 if (ret)
634 return ret;
635
636 for_each_intel_crtc(dev, crtc) {
637 const char pipe = pipe_name(crtc->pipe);
638 const char plane = plane_name(crtc->plane);
639 struct intel_flip_work *work;
640
641 spin_lock_irq(&dev->event_lock);
642 work = crtc->flip_work;
643 if (work == NULL) {
644 seq_printf(m, "No flip due on pipe %c (plane %c)\n",
645 pipe, plane);
646 } else {
647 u32 pending;
648 u32 addr;
649
650 pending = atomic_read(&work->pending);
651 if (pending) {
652 seq_printf(m, "Flip ioctl preparing on pipe %c (plane %c)\n",
653 pipe, plane);
654 } else {
655 seq_printf(m, "Flip pending (waiting for vsync) on pipe %c (plane %c)\n",
656 pipe, plane);
657 }
658 if (work->flip_queued_req) {
659 struct intel_engine_cs *engine = i915_gem_request_get_engine(work->flip_queued_req);
660
661 seq_printf(m, "Flip queued on %s at seqno %x, next seqno %x [current breadcrumb %x], completed? %d\n",
662 engine->name,
663 i915_gem_request_get_seqno(work->flip_queued_req),
664 dev_priv->next_seqno,
665 engine->get_seqno(engine),
666 i915_gem_request_completed(work->flip_queued_req, true));
667 } else
668 seq_printf(m, "Flip not associated with any ring\n");
669 seq_printf(m, "Flip queued on frame %d, (was ready on frame %d), now %d\n",
670 work->flip_queued_vblank,
671 work->flip_ready_vblank,
672 intel_crtc_get_vblank_counter(crtc));
673 seq_printf(m, "%d prepares\n", atomic_read(&work->pending));
674
675 if (INTEL_INFO(dev)->gen >= 4)
676 addr = I915_HI_DISPBASE(I915_READ(DSPSURF(crtc->plane)));
677 else
678 addr = I915_READ(DSPADDR(crtc->plane));
679 seq_printf(m, "Current scanout address 0x%08x\n", addr);
680
681 if (work->pending_flip_obj) {
682 seq_printf(m, "New framebuffer address 0x%08lx\n", (long)work->gtt_offset);
683 seq_printf(m, "MMIO update completed? %d\n", addr == work->gtt_offset);
684 }
685 }
686 spin_unlock_irq(&dev->event_lock);
687 }
688
689 mutex_unlock(&dev->struct_mutex);
690
691 return 0;
692 }
693
694 static int i915_gem_batch_pool_info(struct seq_file *m, void *data)
695 {
696 struct drm_info_node *node = m->private;
697 struct drm_device *dev = node->minor->dev;
698 struct drm_i915_private *dev_priv = dev->dev_private;
699 struct drm_i915_gem_object *obj;
700 struct intel_engine_cs *engine;
701 int total = 0;
702 int ret, j;
703
704 ret = mutex_lock_interruptible(&dev->struct_mutex);
705 if (ret)
706 return ret;
707
708 for_each_engine(engine, dev_priv) {
709 for (j = 0; j < ARRAY_SIZE(engine->batch_pool.cache_list); j++) {
710 int count;
711
712 count = 0;
713 list_for_each_entry(obj,
714 &engine->batch_pool.cache_list[j],
715 batch_pool_link)
716 count++;
717 seq_printf(m, "%s cache[%d]: %d objects\n",
718 engine->name, j, count);
719
720 list_for_each_entry(obj,
721 &engine->batch_pool.cache_list[j],
722 batch_pool_link) {
723 seq_puts(m, " ");
724 describe_obj(m, obj);
725 seq_putc(m, '\n');
726 }
727
728 total += count;
729 }
730 }
731
732 seq_printf(m, "total: %d\n", total);
733
734 mutex_unlock(&dev->struct_mutex);
735
736 return 0;
737 }
738
739 static int i915_gem_request_info(struct seq_file *m, void *data)
740 {
741 struct drm_info_node *node = m->private;
742 struct drm_device *dev = node->minor->dev;
743 struct drm_i915_private *dev_priv = dev->dev_private;
744 struct intel_engine_cs *engine;
745 struct drm_i915_gem_request *req;
746 int ret, any;
747
748 ret = mutex_lock_interruptible(&dev->struct_mutex);
749 if (ret)
750 return ret;
751
752 any = 0;
753 for_each_engine(engine, dev_priv) {
754 int count;
755
756 count = 0;
757 list_for_each_entry(req, &engine->request_list, list)
758 count++;
759 if (count == 0)
760 continue;
761
762 seq_printf(m, "%s requests: %d\n", engine->name, count);
763 list_for_each_entry(req, &engine->request_list, list) {
764 struct task_struct *task;
765
766 rcu_read_lock();
767 task = NULL;
768 if (req->pid)
769 task = pid_task(req->pid, PIDTYPE_PID);
770 seq_printf(m, " %x @ %d: %s [%d]\n",
771 req->seqno,
772 (int) (jiffies - req->emitted_jiffies),
773 task ? task->comm : "<unknown>",
774 task ? task->pid : -1);
775 rcu_read_unlock();
776 }
777
778 any++;
779 }
780 mutex_unlock(&dev->struct_mutex);
781
782 if (any == 0)
783 seq_puts(m, "No requests\n");
784
785 return 0;
786 }
787
788 static void i915_ring_seqno_info(struct seq_file *m,
789 struct intel_engine_cs *engine)
790 {
791 seq_printf(m, "Current sequence (%s): %x\n",
792 engine->name, engine->get_seqno(engine));
793 seq_printf(m, "Current user interrupts (%s): %x\n",
794 engine->name, READ_ONCE(engine->user_interrupts));
795 }
796
797 static int i915_gem_seqno_info(struct seq_file *m, void *data)
798 {
799 struct drm_info_node *node = m->private;
800 struct drm_device *dev = node->minor->dev;
801 struct drm_i915_private *dev_priv = dev->dev_private;
802 struct intel_engine_cs *engine;
803 int ret;
804
805 ret = mutex_lock_interruptible(&dev->struct_mutex);
806 if (ret)
807 return ret;
808 intel_runtime_pm_get(dev_priv);
809
810 for_each_engine(engine, dev_priv)
811 i915_ring_seqno_info(m, engine);
812
813 intel_runtime_pm_put(dev_priv);
814 mutex_unlock(&dev->struct_mutex);
815
816 return 0;
817 }
818
819
820 static int i915_interrupt_info(struct seq_file *m, void *data)
821 {
822 struct drm_info_node *node = m->private;
823 struct drm_device *dev = node->minor->dev;
824 struct drm_i915_private *dev_priv = dev->dev_private;
825 struct intel_engine_cs *engine;
826 int ret, i, pipe;
827
828 ret = mutex_lock_interruptible(&dev->struct_mutex);
829 if (ret)
830 return ret;
831 intel_runtime_pm_get(dev_priv);
832
833 if (IS_CHERRYVIEW(dev)) {
834 seq_printf(m, "Master Interrupt Control:\t%08x\n",
835 I915_READ(GEN8_MASTER_IRQ));
836
837 seq_printf(m, "Display IER:\t%08x\n",
838 I915_READ(VLV_IER));
839 seq_printf(m, "Display IIR:\t%08x\n",
840 I915_READ(VLV_IIR));
841 seq_printf(m, "Display IIR_RW:\t%08x\n",
842 I915_READ(VLV_IIR_RW));
843 seq_printf(m, "Display IMR:\t%08x\n",
844 I915_READ(VLV_IMR));
845 for_each_pipe(dev_priv, pipe)
846 seq_printf(m, "Pipe %c stat:\t%08x\n",
847 pipe_name(pipe),
848 I915_READ(PIPESTAT(pipe)));
849
850 seq_printf(m, "Port hotplug:\t%08x\n",
851 I915_READ(PORT_HOTPLUG_EN));
852 seq_printf(m, "DPFLIPSTAT:\t%08x\n",
853 I915_READ(VLV_DPFLIPSTAT));
854 seq_printf(m, "DPINVGTT:\t%08x\n",
855 I915_READ(DPINVGTT));
856
857 for (i = 0; i < 4; i++) {
858 seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
859 i, I915_READ(GEN8_GT_IMR(i)));
860 seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
861 i, I915_READ(GEN8_GT_IIR(i)));
862 seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
863 i, I915_READ(GEN8_GT_IER(i)));
864 }
865
866 seq_printf(m, "PCU interrupt mask:\t%08x\n",
867 I915_READ(GEN8_PCU_IMR));
868 seq_printf(m, "PCU interrupt identity:\t%08x\n",
869 I915_READ(GEN8_PCU_IIR));
870 seq_printf(m, "PCU interrupt enable:\t%08x\n",
871 I915_READ(GEN8_PCU_IER));
872 } else if (INTEL_INFO(dev)->gen >= 8) {
873 seq_printf(m, "Master Interrupt Control:\t%08x\n",
874 I915_READ(GEN8_MASTER_IRQ));
875
876 for (i = 0; i < 4; i++) {
877 seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
878 i, I915_READ(GEN8_GT_IMR(i)));
879 seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
880 i, I915_READ(GEN8_GT_IIR(i)));
881 seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
882 i, I915_READ(GEN8_GT_IER(i)));
883 }
884
885 for_each_pipe(dev_priv, pipe) {
886 enum intel_display_power_domain power_domain;
887
888 power_domain = POWER_DOMAIN_PIPE(pipe);
889 if (!intel_display_power_get_if_enabled(dev_priv,
890 power_domain)) {
891 seq_printf(m, "Pipe %c power disabled\n",
892 pipe_name(pipe));
893 continue;
894 }
895 seq_printf(m, "Pipe %c IMR:\t%08x\n",
896 pipe_name(pipe),
897 I915_READ(GEN8_DE_PIPE_IMR(pipe)));
898 seq_printf(m, "Pipe %c IIR:\t%08x\n",
899 pipe_name(pipe),
900 I915_READ(GEN8_DE_PIPE_IIR(pipe)));
901 seq_printf(m, "Pipe %c IER:\t%08x\n",
902 pipe_name(pipe),
903 I915_READ(GEN8_DE_PIPE_IER(pipe)));
904
905 intel_display_power_put(dev_priv, power_domain);
906 }
907
908 seq_printf(m, "Display Engine port interrupt mask:\t%08x\n",
909 I915_READ(GEN8_DE_PORT_IMR));
910 seq_printf(m, "Display Engine port interrupt identity:\t%08x\n",
911 I915_READ(GEN8_DE_PORT_IIR));
912 seq_printf(m, "Display Engine port interrupt enable:\t%08x\n",
913 I915_READ(GEN8_DE_PORT_IER));
914
915 seq_printf(m, "Display Engine misc interrupt mask:\t%08x\n",
916 I915_READ(GEN8_DE_MISC_IMR));
917 seq_printf(m, "Display Engine misc interrupt identity:\t%08x\n",
918 I915_READ(GEN8_DE_MISC_IIR));
919 seq_printf(m, "Display Engine misc interrupt enable:\t%08x\n",
920 I915_READ(GEN8_DE_MISC_IER));
921
922 seq_printf(m, "PCU interrupt mask:\t%08x\n",
923 I915_READ(GEN8_PCU_IMR));
924 seq_printf(m, "PCU interrupt identity:\t%08x\n",
925 I915_READ(GEN8_PCU_IIR));
926 seq_printf(m, "PCU interrupt enable:\t%08x\n",
927 I915_READ(GEN8_PCU_IER));
928 } else if (IS_VALLEYVIEW(dev)) {
929 seq_printf(m, "Display IER:\t%08x\n",
930 I915_READ(VLV_IER));
931 seq_printf(m, "Display IIR:\t%08x\n",
932 I915_READ(VLV_IIR));
933 seq_printf(m, "Display IIR_RW:\t%08x\n",
934 I915_READ(VLV_IIR_RW));
935 seq_printf(m, "Display IMR:\t%08x\n",
936 I915_READ(VLV_IMR));
937 for_each_pipe(dev_priv, pipe)
938 seq_printf(m, "Pipe %c stat:\t%08x\n",
939 pipe_name(pipe),
940 I915_READ(PIPESTAT(pipe)));
941
942 seq_printf(m, "Master IER:\t%08x\n",
943 I915_READ(VLV_MASTER_IER));
944
945 seq_printf(m, "Render IER:\t%08x\n",
946 I915_READ(GTIER));
947 seq_printf(m, "Render IIR:\t%08x\n",
948 I915_READ(GTIIR));
949 seq_printf(m, "Render IMR:\t%08x\n",
950 I915_READ(GTIMR));
951
952 seq_printf(m, "PM IER:\t\t%08x\n",
953 I915_READ(GEN6_PMIER));
954 seq_printf(m, "PM IIR:\t\t%08x\n",
955 I915_READ(GEN6_PMIIR));
956 seq_printf(m, "PM IMR:\t\t%08x\n",
957 I915_READ(GEN6_PMIMR));
958
959 seq_printf(m, "Port hotplug:\t%08x\n",
960 I915_READ(PORT_HOTPLUG_EN));
961 seq_printf(m, "DPFLIPSTAT:\t%08x\n",
962 I915_READ(VLV_DPFLIPSTAT));
963 seq_printf(m, "DPINVGTT:\t%08x\n",
964 I915_READ(DPINVGTT));
965
966 } else if (!HAS_PCH_SPLIT(dev)) {
967 seq_printf(m, "Interrupt enable: %08x\n",
968 I915_READ(IER));
969 seq_printf(m, "Interrupt identity: %08x\n",
970 I915_READ(IIR));
971 seq_printf(m, "Interrupt mask: %08x\n",
972 I915_READ(IMR));
973 for_each_pipe(dev_priv, pipe)
974 seq_printf(m, "Pipe %c stat: %08x\n",
975 pipe_name(pipe),
976 I915_READ(PIPESTAT(pipe)));
977 } else {
978 seq_printf(m, "North Display Interrupt enable: %08x\n",
979 I915_READ(DEIER));
980 seq_printf(m, "North Display Interrupt identity: %08x\n",
981 I915_READ(DEIIR));
982 seq_printf(m, "North Display Interrupt mask: %08x\n",
983 I915_READ(DEIMR));
984 seq_printf(m, "South Display Interrupt enable: %08x\n",
985 I915_READ(SDEIER));
986 seq_printf(m, "South Display Interrupt identity: %08x\n",
987 I915_READ(SDEIIR));
988 seq_printf(m, "South Display Interrupt mask: %08x\n",
989 I915_READ(SDEIMR));
990 seq_printf(m, "Graphics Interrupt enable: %08x\n",
991 I915_READ(GTIER));
992 seq_printf(m, "Graphics Interrupt identity: %08x\n",
993 I915_READ(GTIIR));
994 seq_printf(m, "Graphics Interrupt mask: %08x\n",
995 I915_READ(GTIMR));
996 }
997 for_each_engine(engine, dev_priv) {
998 if (INTEL_INFO(dev)->gen >= 6) {
999 seq_printf(m,
1000 "Graphics Interrupt mask (%s): %08x\n",
1001 engine->name, I915_READ_IMR(engine));
1002 }
1003 i915_ring_seqno_info(m, engine);
1004 }
1005 intel_runtime_pm_put(dev_priv);
1006 mutex_unlock(&dev->struct_mutex);
1007
1008 return 0;
1009 }
1010
1011 static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
1012 {
1013 struct drm_info_node *node = m->private;
1014 struct drm_device *dev = node->minor->dev;
1015 struct drm_i915_private *dev_priv = dev->dev_private;
1016 int i, ret;
1017
1018 ret = mutex_lock_interruptible(&dev->struct_mutex);
1019 if (ret)
1020 return ret;
1021
1022 seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
1023 for (i = 0; i < dev_priv->num_fence_regs; i++) {
1024 struct drm_i915_gem_object *obj = dev_priv->fence_regs[i].obj;
1025
1026 seq_printf(m, "Fence %d, pin count = %d, object = ",
1027 i, dev_priv->fence_regs[i].pin_count);
1028 if (obj == NULL)
1029 seq_puts(m, "unused");
1030 else
1031 describe_obj(m, obj);
1032 seq_putc(m, '\n');
1033 }
1034
1035 mutex_unlock(&dev->struct_mutex);
1036 return 0;
1037 }
1038
1039 static int i915_hws_info(struct seq_file *m, void *data)
1040 {
1041 struct drm_info_node *node = m->private;
1042 struct drm_device *dev = node->minor->dev;
1043 struct drm_i915_private *dev_priv = dev->dev_private;
1044 struct intel_engine_cs *engine;
1045 const u32 *hws;
1046 int i;
1047
1048 engine = &dev_priv->engine[(uintptr_t)node->info_ent->data];
1049 hws = engine->status_page.page_addr;
1050 if (hws == NULL)
1051 return 0;
1052
1053 for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
1054 seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
1055 i * 4,
1056 hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
1057 }
1058 return 0;
1059 }
1060
1061 static ssize_t
1062 i915_error_state_write(struct file *filp,
1063 const char __user *ubuf,
1064 size_t cnt,
1065 loff_t *ppos)
1066 {
1067 struct i915_error_state_file_priv *error_priv = filp->private_data;
1068 struct drm_device *dev = error_priv->dev;
1069 int ret;
1070
1071 DRM_DEBUG_DRIVER("Resetting error state\n");
1072
1073 ret = mutex_lock_interruptible(&dev->struct_mutex);
1074 if (ret)
1075 return ret;
1076
1077 i915_destroy_error_state(dev);
1078 mutex_unlock(&dev->struct_mutex);
1079
1080 return cnt;
1081 }
1082
1083 static int i915_error_state_open(struct inode *inode, struct file *file)
1084 {
1085 struct drm_device *dev = inode->i_private;
1086 struct i915_error_state_file_priv *error_priv;
1087
1088 error_priv = kzalloc(sizeof(*error_priv), GFP_KERNEL);
1089 if (!error_priv)
1090 return -ENOMEM;
1091
1092 error_priv->dev = dev;
1093
1094 i915_error_state_get(dev, error_priv);
1095
1096 file->private_data = error_priv;
1097
1098 return 0;
1099 }
1100
1101 static int i915_error_state_release(struct inode *inode, struct file *file)
1102 {
1103 struct i915_error_state_file_priv *error_priv = file->private_data;
1104
1105 i915_error_state_put(error_priv);
1106 kfree(error_priv);
1107
1108 return 0;
1109 }
1110
1111 static ssize_t i915_error_state_read(struct file *file, char __user *userbuf,
1112 size_t count, loff_t *pos)
1113 {
1114 struct i915_error_state_file_priv *error_priv = file->private_data;
1115 struct drm_i915_error_state_buf error_str;
1116 loff_t tmp_pos = 0;
1117 ssize_t ret_count = 0;
1118 int ret;
1119
1120 ret = i915_error_state_buf_init(&error_str, to_i915(error_priv->dev), count, *pos);
1121 if (ret)
1122 return ret;
1123
1124 ret = i915_error_state_to_str(&error_str, error_priv);
1125 if (ret)
1126 goto out;
1127
1128 ret_count = simple_read_from_buffer(userbuf, count, &tmp_pos,
1129 error_str.buf,
1130 error_str.bytes);
1131
1132 if (ret_count < 0)
1133 ret = ret_count;
1134 else
1135 *pos = error_str.start + ret_count;
1136 out:
1137 i915_error_state_buf_release(&error_str);
1138 return ret ?: ret_count;
1139 }
1140
1141 static const struct file_operations i915_error_state_fops = {
1142 .owner = THIS_MODULE,
1143 .open = i915_error_state_open,
1144 .read = i915_error_state_read,
1145 .write = i915_error_state_write,
1146 .llseek = default_llseek,
1147 .release = i915_error_state_release,
1148 };
1149
1150 static int
1151 i915_next_seqno_get(void *data, u64 *val)
1152 {
1153 struct drm_device *dev = data;
1154 struct drm_i915_private *dev_priv = dev->dev_private;
1155 int ret;
1156
1157 ret = mutex_lock_interruptible(&dev->struct_mutex);
1158 if (ret)
1159 return ret;
1160
1161 *val = dev_priv->next_seqno;
1162 mutex_unlock(&dev->struct_mutex);
1163
1164 return 0;
1165 }
1166
1167 static int
1168 i915_next_seqno_set(void *data, u64 val)
1169 {
1170 struct drm_device *dev = data;
1171 int ret;
1172
1173 ret = mutex_lock_interruptible(&dev->struct_mutex);
1174 if (ret)
1175 return ret;
1176
1177 ret = i915_gem_set_seqno(dev, val);
1178 mutex_unlock(&dev->struct_mutex);
1179
1180 return ret;
1181 }
1182
1183 DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops,
1184 i915_next_seqno_get, i915_next_seqno_set,
1185 "0x%llx\n");
1186
1187 static int i915_frequency_info(struct seq_file *m, void *unused)
1188 {
1189 struct drm_info_node *node = m->private;
1190 struct drm_device *dev = node->minor->dev;
1191 struct drm_i915_private *dev_priv = dev->dev_private;
1192 int ret = 0;
1193
1194 intel_runtime_pm_get(dev_priv);
1195
1196 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
1197
1198 if (IS_GEN5(dev)) {
1199 u16 rgvswctl = I915_READ16(MEMSWCTL);
1200 u16 rgvstat = I915_READ16(MEMSTAT_ILK);
1201
1202 seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
1203 seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
1204 seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
1205 MEMSTAT_VID_SHIFT);
1206 seq_printf(m, "Current P-state: %d\n",
1207 (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
1208 } else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) {
1209 u32 freq_sts;
1210
1211 mutex_lock(&dev_priv->rps.hw_lock);
1212 freq_sts = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
1213 seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
1214 seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
1215
1216 seq_printf(m, "actual GPU freq: %d MHz\n",
1217 intel_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff));
1218
1219 seq_printf(m, "current GPU freq: %d MHz\n",
1220 intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
1221
1222 seq_printf(m, "max GPU freq: %d MHz\n",
1223 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
1224
1225 seq_printf(m, "min GPU freq: %d MHz\n",
1226 intel_gpu_freq(dev_priv, dev_priv->rps.min_freq));
1227
1228 seq_printf(m, "idle GPU freq: %d MHz\n",
1229 intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq));
1230
1231 seq_printf(m,
1232 "efficient (RPe) frequency: %d MHz\n",
1233 intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
1234 mutex_unlock(&dev_priv->rps.hw_lock);
1235 } else if (INTEL_INFO(dev)->gen >= 6) {
1236 u32 rp_state_limits;
1237 u32 gt_perf_status;
1238 u32 rp_state_cap;
1239 u32 rpmodectl, rpinclimit, rpdeclimit;
1240 u32 rpstat, cagf, reqf;
1241 u32 rpupei, rpcurup, rpprevup;
1242 u32 rpdownei, rpcurdown, rpprevdown;
1243 u32 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask;
1244 int max_freq;
1245
1246 rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
1247 if (IS_BROXTON(dev)) {
1248 rp_state_cap = I915_READ(BXT_RP_STATE_CAP);
1249 gt_perf_status = I915_READ(BXT_GT_PERF_STATUS);
1250 } else {
1251 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
1252 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
1253 }
1254
1255 /* RPSTAT1 is in the GT power well */
1256 ret = mutex_lock_interruptible(&dev->struct_mutex);
1257 if (ret)
1258 goto out;
1259
1260 intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
1261
1262 reqf = I915_READ(GEN6_RPNSWREQ);
1263 if (IS_GEN9(dev))
1264 reqf >>= 23;
1265 else {
1266 reqf &= ~GEN6_TURBO_DISABLE;
1267 if (IS_HASWELL(dev) || IS_BROADWELL(dev))
1268 reqf >>= 24;
1269 else
1270 reqf >>= 25;
1271 }
1272 reqf = intel_gpu_freq(dev_priv, reqf);
1273
1274 rpmodectl = I915_READ(GEN6_RP_CONTROL);
1275 rpinclimit = I915_READ(GEN6_RP_UP_THRESHOLD);
1276 rpdeclimit = I915_READ(GEN6_RP_DOWN_THRESHOLD);
1277
1278 rpstat = I915_READ(GEN6_RPSTAT1);
1279 rpupei = I915_READ(GEN6_RP_CUR_UP_EI) & GEN6_CURICONT_MASK;
1280 rpcurup = I915_READ(GEN6_RP_CUR_UP) & GEN6_CURBSYTAVG_MASK;
1281 rpprevup = I915_READ(GEN6_RP_PREV_UP) & GEN6_CURBSYTAVG_MASK;
1282 rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI) & GEN6_CURIAVG_MASK;
1283 rpcurdown = I915_READ(GEN6_RP_CUR_DOWN) & GEN6_CURBSYTAVG_MASK;
1284 rpprevdown = I915_READ(GEN6_RP_PREV_DOWN) & GEN6_CURBSYTAVG_MASK;
1285 if (IS_GEN9(dev))
1286 cagf = (rpstat & GEN9_CAGF_MASK) >> GEN9_CAGF_SHIFT;
1287 else if (IS_HASWELL(dev) || IS_BROADWELL(dev))
1288 cagf = (rpstat & HSW_CAGF_MASK) >> HSW_CAGF_SHIFT;
1289 else
1290 cagf = (rpstat & GEN6_CAGF_MASK) >> GEN6_CAGF_SHIFT;
1291 cagf = intel_gpu_freq(dev_priv, cagf);
1292
1293 intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
1294 mutex_unlock(&dev->struct_mutex);
1295
1296 if (IS_GEN6(dev) || IS_GEN7(dev)) {
1297 pm_ier = I915_READ(GEN6_PMIER);
1298 pm_imr = I915_READ(GEN6_PMIMR);
1299 pm_isr = I915_READ(GEN6_PMISR);
1300 pm_iir = I915_READ(GEN6_PMIIR);
1301 pm_mask = I915_READ(GEN6_PMINTRMSK);
1302 } else {
1303 pm_ier = I915_READ(GEN8_GT_IER(2));
1304 pm_imr = I915_READ(GEN8_GT_IMR(2));
1305 pm_isr = I915_READ(GEN8_GT_ISR(2));
1306 pm_iir = I915_READ(GEN8_GT_IIR(2));
1307 pm_mask = I915_READ(GEN6_PMINTRMSK);
1308 }
1309 seq_printf(m, "PM IER=0x%08x IMR=0x%08x ISR=0x%08x IIR=0x%08x, MASK=0x%08x\n",
1310 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask);
1311 seq_printf(m, "pm_intr_keep: 0x%08x\n", dev_priv->rps.pm_intr_keep);
1312 seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
1313 seq_printf(m, "Render p-state ratio: %d\n",
1314 (gt_perf_status & (IS_GEN9(dev) ? 0x1ff00 : 0xff00)) >> 8);
1315 seq_printf(m, "Render p-state VID: %d\n",
1316 gt_perf_status & 0xff);
1317 seq_printf(m, "Render p-state limit: %d\n",
1318 rp_state_limits & 0xff);
1319 seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
1320 seq_printf(m, "RPMODECTL: 0x%08x\n", rpmodectl);
1321 seq_printf(m, "RPINCLIMIT: 0x%08x\n", rpinclimit);
1322 seq_printf(m, "RPDECLIMIT: 0x%08x\n", rpdeclimit);
1323 seq_printf(m, "RPNSWREQ: %dMHz\n", reqf);
1324 seq_printf(m, "CAGF: %dMHz\n", cagf);
1325 seq_printf(m, "RP CUR UP EI: %d (%dus)\n",
1326 rpupei, GT_PM_INTERVAL_TO_US(dev_priv, rpupei));
1327 seq_printf(m, "RP CUR UP: %d (%dus)\n",
1328 rpcurup, GT_PM_INTERVAL_TO_US(dev_priv, rpcurup));
1329 seq_printf(m, "RP PREV UP: %d (%dus)\n",
1330 rpprevup, GT_PM_INTERVAL_TO_US(dev_priv, rpprevup));
1331 seq_printf(m, "Up threshold: %d%%\n",
1332 dev_priv->rps.up_threshold);
1333
1334 seq_printf(m, "RP CUR DOWN EI: %d (%dus)\n",
1335 rpdownei, GT_PM_INTERVAL_TO_US(dev_priv, rpdownei));
1336 seq_printf(m, "RP CUR DOWN: %d (%dus)\n",
1337 rpcurdown, GT_PM_INTERVAL_TO_US(dev_priv, rpcurdown));
1338 seq_printf(m, "RP PREV DOWN: %d (%dus)\n",
1339 rpprevdown, GT_PM_INTERVAL_TO_US(dev_priv, rpprevdown));
1340 seq_printf(m, "Down threshold: %d%%\n",
1341 dev_priv->rps.down_threshold);
1342
1343 max_freq = (IS_BROXTON(dev) ? rp_state_cap >> 0 :
1344 rp_state_cap >> 16) & 0xff;
1345 max_freq *= (IS_SKYLAKE(dev) || IS_KABYLAKE(dev) ?
1346 GEN9_FREQ_SCALER : 1);
1347 seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
1348 intel_gpu_freq(dev_priv, max_freq));
1349
1350 max_freq = (rp_state_cap & 0xff00) >> 8;
1351 max_freq *= (IS_SKYLAKE(dev) || IS_KABYLAKE(dev) ?
1352 GEN9_FREQ_SCALER : 1);
1353 seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
1354 intel_gpu_freq(dev_priv, max_freq));
1355
1356 max_freq = (IS_BROXTON(dev) ? rp_state_cap >> 16 :
1357 rp_state_cap >> 0) & 0xff;
1358 max_freq *= (IS_SKYLAKE(dev) || IS_KABYLAKE(dev) ?
1359 GEN9_FREQ_SCALER : 1);
1360 seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
1361 intel_gpu_freq(dev_priv, max_freq));
1362 seq_printf(m, "Max overclocked frequency: %dMHz\n",
1363 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
1364
1365 seq_printf(m, "Current freq: %d MHz\n",
1366 intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
1367 seq_printf(m, "Actual freq: %d MHz\n", cagf);
1368 seq_printf(m, "Idle freq: %d MHz\n",
1369 intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq));
1370 seq_printf(m, "Min freq: %d MHz\n",
1371 intel_gpu_freq(dev_priv, dev_priv->rps.min_freq));
1372 seq_printf(m, "Max freq: %d MHz\n",
1373 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
1374 seq_printf(m,
1375 "efficient (RPe) frequency: %d MHz\n",
1376 intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
1377 } else {
1378 seq_puts(m, "no P-state info available\n");
1379 }
1380
1381 seq_printf(m, "Current CD clock frequency: %d kHz\n", dev_priv->cdclk_freq);
1382 seq_printf(m, "Max CD clock frequency: %d kHz\n", dev_priv->max_cdclk_freq);
1383 seq_printf(m, "Max pixel clock frequency: %d kHz\n", dev_priv->max_dotclk_freq);
1384
1385 out:
1386 intel_runtime_pm_put(dev_priv);
1387 return ret;
1388 }
1389
1390 static int i915_hangcheck_info(struct seq_file *m, void *unused)
1391 {
1392 struct drm_info_node *node = m->private;
1393 struct drm_device *dev = node->minor->dev;
1394 struct drm_i915_private *dev_priv = dev->dev_private;
1395 struct intel_engine_cs *engine;
1396 u64 acthd[I915_NUM_ENGINES];
1397 u32 seqno[I915_NUM_ENGINES];
1398 u32 instdone[I915_NUM_INSTDONE_REG];
1399 enum intel_engine_id id;
1400 int j;
1401
1402 if (!i915.enable_hangcheck) {
1403 seq_printf(m, "Hangcheck disabled\n");
1404 return 0;
1405 }
1406
1407 intel_runtime_pm_get(dev_priv);
1408
1409 for_each_engine_id(engine, dev_priv, id) {
1410 acthd[id] = intel_ring_get_active_head(engine);
1411 seqno[id] = engine->get_seqno(engine);
1412 }
1413
1414 i915_get_extra_instdone(dev_priv, instdone);
1415
1416 intel_runtime_pm_put(dev_priv);
1417
1418 if (delayed_work_pending(&dev_priv->gpu_error.hangcheck_work)) {
1419 seq_printf(m, "Hangcheck active, fires in %dms\n",
1420 jiffies_to_msecs(dev_priv->gpu_error.hangcheck_work.timer.expires -
1421 jiffies));
1422 } else
1423 seq_printf(m, "Hangcheck inactive\n");
1424
1425 for_each_engine_id(engine, dev_priv, id) {
1426 seq_printf(m, "%s:\n", engine->name);
1427 seq_printf(m, "\tseqno = %x [current %x, last %x]\n",
1428 engine->hangcheck.seqno,
1429 seqno[id],
1430 engine->last_submitted_seqno);
1431 seq_printf(m, "\tuser interrupts = %x [current %x]\n",
1432 engine->hangcheck.user_interrupts,
1433 READ_ONCE(engine->user_interrupts));
1434 seq_printf(m, "\tACTHD = 0x%08llx [current 0x%08llx]\n",
1435 (long long)engine->hangcheck.acthd,
1436 (long long)acthd[id]);
1437 seq_printf(m, "\tscore = %d\n", engine->hangcheck.score);
1438 seq_printf(m, "\taction = %d\n", engine->hangcheck.action);
1439
1440 if (engine->id == RCS) {
1441 seq_puts(m, "\tinstdone read =");
1442
1443 for (j = 0; j < I915_NUM_INSTDONE_REG; j++)
1444 seq_printf(m, " 0x%08x", instdone[j]);
1445
1446 seq_puts(m, "\n\tinstdone accu =");
1447
1448 for (j = 0; j < I915_NUM_INSTDONE_REG; j++)
1449 seq_printf(m, " 0x%08x",
1450 engine->hangcheck.instdone[j]);
1451
1452 seq_puts(m, "\n");
1453 }
1454 }
1455
1456 return 0;
1457 }
1458
1459 static int ironlake_drpc_info(struct seq_file *m)
1460 {
1461 struct drm_info_node *node = m->private;
1462 struct drm_device *dev = node->minor->dev;
1463 struct drm_i915_private *dev_priv = dev->dev_private;
1464 u32 rgvmodectl, rstdbyctl;
1465 u16 crstandvid;
1466 int ret;
1467
1468 ret = mutex_lock_interruptible(&dev->struct_mutex);
1469 if (ret)
1470 return ret;
1471 intel_runtime_pm_get(dev_priv);
1472
1473 rgvmodectl = I915_READ(MEMMODECTL);
1474 rstdbyctl = I915_READ(RSTDBYCTL);
1475 crstandvid = I915_READ16(CRSTANDVID);
1476
1477 intel_runtime_pm_put(dev_priv);
1478 mutex_unlock(&dev->struct_mutex);
1479
1480 seq_printf(m, "HD boost: %s\n", yesno(rgvmodectl & MEMMODE_BOOST_EN));
1481 seq_printf(m, "Boost freq: %d\n",
1482 (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
1483 MEMMODE_BOOST_FREQ_SHIFT);
1484 seq_printf(m, "HW control enabled: %s\n",
1485 yesno(rgvmodectl & MEMMODE_HWIDLE_EN));
1486 seq_printf(m, "SW control enabled: %s\n",
1487 yesno(rgvmodectl & MEMMODE_SWMODE_EN));
1488 seq_printf(m, "Gated voltage change: %s\n",
1489 yesno(rgvmodectl & MEMMODE_RCLK_GATE));
1490 seq_printf(m, "Starting frequency: P%d\n",
1491 (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
1492 seq_printf(m, "Max P-state: P%d\n",
1493 (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
1494 seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
1495 seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
1496 seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
1497 seq_printf(m, "Render standby enabled: %s\n",
1498 yesno(!(rstdbyctl & RCX_SW_EXIT)));
1499 seq_puts(m, "Current RS state: ");
1500 switch (rstdbyctl & RSX_STATUS_MASK) {
1501 case RSX_STATUS_ON:
1502 seq_puts(m, "on\n");
1503 break;
1504 case RSX_STATUS_RC1:
1505 seq_puts(m, "RC1\n");
1506 break;
1507 case RSX_STATUS_RC1E:
1508 seq_puts(m, "RC1E\n");
1509 break;
1510 case RSX_STATUS_RS1:
1511 seq_puts(m, "RS1\n");
1512 break;
1513 case RSX_STATUS_RS2:
1514 seq_puts(m, "RS2 (RC6)\n");
1515 break;
1516 case RSX_STATUS_RS3:
1517 seq_puts(m, "RC3 (RC6+)\n");
1518 break;
1519 default:
1520 seq_puts(m, "unknown\n");
1521 break;
1522 }
1523
1524 return 0;
1525 }
1526
1527 static int i915_forcewake_domains(struct seq_file *m, void *data)
1528 {
1529 struct drm_info_node *node = m->private;
1530 struct drm_device *dev = node->minor->dev;
1531 struct drm_i915_private *dev_priv = dev->dev_private;
1532 struct intel_uncore_forcewake_domain *fw_domain;
1533
1534 spin_lock_irq(&dev_priv->uncore.lock);
1535 for_each_fw_domain(fw_domain, dev_priv) {
1536 seq_printf(m, "%s.wake_count = %u\n",
1537 intel_uncore_forcewake_domain_to_str(fw_domain->id),
1538 fw_domain->wake_count);
1539 }
1540 spin_unlock_irq(&dev_priv->uncore.lock);
1541
1542 return 0;
1543 }
1544
1545 static int vlv_drpc_info(struct seq_file *m)
1546 {
1547 struct drm_info_node *node = m->private;
1548 struct drm_device *dev = node->minor->dev;
1549 struct drm_i915_private *dev_priv = dev->dev_private;
1550 u32 rpmodectl1, rcctl1, pw_status;
1551
1552 intel_runtime_pm_get(dev_priv);
1553
1554 pw_status = I915_READ(VLV_GTLC_PW_STATUS);
1555 rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
1556 rcctl1 = I915_READ(GEN6_RC_CONTROL);
1557
1558 intel_runtime_pm_put(dev_priv);
1559
1560 seq_printf(m, "Video Turbo Mode: %s\n",
1561 yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
1562 seq_printf(m, "Turbo enabled: %s\n",
1563 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1564 seq_printf(m, "HW control enabled: %s\n",
1565 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1566 seq_printf(m, "SW control enabled: %s\n",
1567 yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
1568 GEN6_RP_MEDIA_SW_MODE));
1569 seq_printf(m, "RC6 Enabled: %s\n",
1570 yesno(rcctl1 & (GEN7_RC_CTL_TO_MODE |
1571 GEN6_RC_CTL_EI_MODE(1))));
1572 seq_printf(m, "Render Power Well: %s\n",
1573 (pw_status & VLV_GTLC_PW_RENDER_STATUS_MASK) ? "Up" : "Down");
1574 seq_printf(m, "Media Power Well: %s\n",
1575 (pw_status & VLV_GTLC_PW_MEDIA_STATUS_MASK) ? "Up" : "Down");
1576
1577 seq_printf(m, "Render RC6 residency since boot: %u\n",
1578 I915_READ(VLV_GT_RENDER_RC6));
1579 seq_printf(m, "Media RC6 residency since boot: %u\n",
1580 I915_READ(VLV_GT_MEDIA_RC6));
1581
1582 return i915_forcewake_domains(m, NULL);
1583 }
1584
1585 static int gen6_drpc_info(struct seq_file *m)
1586 {
1587 struct drm_info_node *node = m->private;
1588 struct drm_device *dev = node->minor->dev;
1589 struct drm_i915_private *dev_priv = dev->dev_private;
1590 u32 rpmodectl1, gt_core_status, rcctl1, rc6vids = 0;
1591 unsigned forcewake_count;
1592 int count = 0, ret;
1593
1594 ret = mutex_lock_interruptible(&dev->struct_mutex);
1595 if (ret)
1596 return ret;
1597 intel_runtime_pm_get(dev_priv);
1598
1599 spin_lock_irq(&dev_priv->uncore.lock);
1600 forcewake_count = dev_priv->uncore.fw_domain[FW_DOMAIN_ID_RENDER].wake_count;
1601 spin_unlock_irq(&dev_priv->uncore.lock);
1602
1603 if (forcewake_count) {
1604 seq_puts(m, "RC information inaccurate because somebody "
1605 "holds a forcewake reference \n");
1606 } else {
1607 /* NB: we cannot use forcewake, else we read the wrong values */
1608 while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
1609 udelay(10);
1610 seq_printf(m, "RC information accurate: %s\n", yesno(count < 51));
1611 }
1612
1613 gt_core_status = I915_READ_FW(GEN6_GT_CORE_STATUS);
1614 trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true);
1615
1616 rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
1617 rcctl1 = I915_READ(GEN6_RC_CONTROL);
1618 mutex_unlock(&dev->struct_mutex);
1619 mutex_lock(&dev_priv->rps.hw_lock);
1620 sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, &rc6vids);
1621 mutex_unlock(&dev_priv->rps.hw_lock);
1622
1623 intel_runtime_pm_put(dev_priv);
1624
1625 seq_printf(m, "Video Turbo Mode: %s\n",
1626 yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
1627 seq_printf(m, "HW control enabled: %s\n",
1628 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1629 seq_printf(m, "SW control enabled: %s\n",
1630 yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
1631 GEN6_RP_MEDIA_SW_MODE));
1632 seq_printf(m, "RC1e Enabled: %s\n",
1633 yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
1634 seq_printf(m, "RC6 Enabled: %s\n",
1635 yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
1636 seq_printf(m, "Deep RC6 Enabled: %s\n",
1637 yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
1638 seq_printf(m, "Deepest RC6 Enabled: %s\n",
1639 yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
1640 seq_puts(m, "Current RC state: ");
1641 switch (gt_core_status & GEN6_RCn_MASK) {
1642 case GEN6_RC0:
1643 if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
1644 seq_puts(m, "Core Power Down\n");
1645 else
1646 seq_puts(m, "on\n");
1647 break;
1648 case GEN6_RC3:
1649 seq_puts(m, "RC3\n");
1650 break;
1651 case GEN6_RC6:
1652 seq_puts(m, "RC6\n");
1653 break;
1654 case GEN6_RC7:
1655 seq_puts(m, "RC7\n");
1656 break;
1657 default:
1658 seq_puts(m, "Unknown\n");
1659 break;
1660 }
1661
1662 seq_printf(m, "Core Power Down: %s\n",
1663 yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
1664
1665 /* Not exactly sure what this is */
1666 seq_printf(m, "RC6 \"Locked to RPn\" residency since boot: %u\n",
1667 I915_READ(GEN6_GT_GFX_RC6_LOCKED));
1668 seq_printf(m, "RC6 residency since boot: %u\n",
1669 I915_READ(GEN6_GT_GFX_RC6));
1670 seq_printf(m, "RC6+ residency since boot: %u\n",
1671 I915_READ(GEN6_GT_GFX_RC6p));
1672 seq_printf(m, "RC6++ residency since boot: %u\n",
1673 I915_READ(GEN6_GT_GFX_RC6pp));
1674
1675 seq_printf(m, "RC6 voltage: %dmV\n",
1676 GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
1677 seq_printf(m, "RC6+ voltage: %dmV\n",
1678 GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
1679 seq_printf(m, "RC6++ voltage: %dmV\n",
1680 GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
1681 return 0;
1682 }
1683
1684 static int i915_drpc_info(struct seq_file *m, void *unused)
1685 {
1686 struct drm_info_node *node = m->private;
1687 struct drm_device *dev = node->minor->dev;
1688
1689 if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
1690 return vlv_drpc_info(m);
1691 else if (INTEL_INFO(dev)->gen >= 6)
1692 return gen6_drpc_info(m);
1693 else
1694 return ironlake_drpc_info(m);
1695 }
1696
1697 static int i915_frontbuffer_tracking(struct seq_file *m, void *unused)
1698 {
1699 struct drm_info_node *node = m->private;
1700 struct drm_device *dev = node->minor->dev;
1701 struct drm_i915_private *dev_priv = dev->dev_private;
1702
1703 seq_printf(m, "FB tracking busy bits: 0x%08x\n",
1704 dev_priv->fb_tracking.busy_bits);
1705
1706 seq_printf(m, "FB tracking flip bits: 0x%08x\n",
1707 dev_priv->fb_tracking.flip_bits);
1708
1709 return 0;
1710 }
1711
1712 static int i915_fbc_status(struct seq_file *m, void *unused)
1713 {
1714 struct drm_info_node *node = m->private;
1715 struct drm_device *dev = node->minor->dev;
1716 struct drm_i915_private *dev_priv = dev->dev_private;
1717
1718 if (!HAS_FBC(dev)) {
1719 seq_puts(m, "FBC unsupported on this chipset\n");
1720 return 0;
1721 }
1722
1723 intel_runtime_pm_get(dev_priv);
1724 mutex_lock(&dev_priv->fbc.lock);
1725
1726 if (intel_fbc_is_active(dev_priv))
1727 seq_puts(m, "FBC enabled\n");
1728 else
1729 seq_printf(m, "FBC disabled: %s\n",
1730 dev_priv->fbc.no_fbc_reason);
1731
1732 if (INTEL_INFO(dev_priv)->gen >= 7)
1733 seq_printf(m, "Compressing: %s\n",
1734 yesno(I915_READ(FBC_STATUS2) &
1735 FBC_COMPRESSION_MASK));
1736
1737 mutex_unlock(&dev_priv->fbc.lock);
1738 intel_runtime_pm_put(dev_priv);
1739
1740 return 0;
1741 }
1742
1743 static int i915_fbc_fc_get(void *data, u64 *val)
1744 {
1745 struct drm_device *dev = data;
1746 struct drm_i915_private *dev_priv = dev->dev_private;
1747
1748 if (INTEL_INFO(dev)->gen < 7 || !HAS_FBC(dev))
1749 return -ENODEV;
1750
1751 *val = dev_priv->fbc.false_color;
1752
1753 return 0;
1754 }
1755
1756 static int i915_fbc_fc_set(void *data, u64 val)
1757 {
1758 struct drm_device *dev = data;
1759 struct drm_i915_private *dev_priv = dev->dev_private;
1760 u32 reg;
1761
1762 if (INTEL_INFO(dev)->gen < 7 || !HAS_FBC(dev))
1763 return -ENODEV;
1764
1765 mutex_lock(&dev_priv->fbc.lock);
1766
1767 reg = I915_READ(ILK_DPFC_CONTROL);
1768 dev_priv->fbc.false_color = val;
1769
1770 I915_WRITE(ILK_DPFC_CONTROL, val ?
1771 (reg | FBC_CTL_FALSE_COLOR) :
1772 (reg & ~FBC_CTL_FALSE_COLOR));
1773
1774 mutex_unlock(&dev_priv->fbc.lock);
1775 return 0;
1776 }
1777
1778 DEFINE_SIMPLE_ATTRIBUTE(i915_fbc_fc_fops,
1779 i915_fbc_fc_get, i915_fbc_fc_set,
1780 "%llu\n");
1781
1782 static int i915_ips_status(struct seq_file *m, void *unused)
1783 {
1784 struct drm_info_node *node = m->private;
1785 struct drm_device *dev = node->minor->dev;
1786 struct drm_i915_private *dev_priv = dev->dev_private;
1787
1788 if (!HAS_IPS(dev)) {
1789 seq_puts(m, "not supported\n");
1790 return 0;
1791 }
1792
1793 intel_runtime_pm_get(dev_priv);
1794
1795 seq_printf(m, "Enabled by kernel parameter: %s\n",
1796 yesno(i915.enable_ips));
1797
1798 if (INTEL_INFO(dev)->gen >= 8) {
1799 seq_puts(m, "Currently: unknown\n");
1800 } else {
1801 if (I915_READ(IPS_CTL) & IPS_ENABLE)
1802 seq_puts(m, "Currently: enabled\n");
1803 else
1804 seq_puts(m, "Currently: disabled\n");
1805 }
1806
1807 intel_runtime_pm_put(dev_priv);
1808
1809 return 0;
1810 }
1811
1812 static int i915_sr_status(struct seq_file *m, void *unused)
1813 {
1814 struct drm_info_node *node = m->private;
1815 struct drm_device *dev = node->minor->dev;
1816 struct drm_i915_private *dev_priv = dev->dev_private;
1817 bool sr_enabled = false;
1818
1819 intel_runtime_pm_get(dev_priv);
1820
1821 if (HAS_PCH_SPLIT(dev))
1822 sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
1823 else if (IS_CRESTLINE(dev) || IS_G4X(dev) ||
1824 IS_I945G(dev) || IS_I945GM(dev))
1825 sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
1826 else if (IS_I915GM(dev))
1827 sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
1828 else if (IS_PINEVIEW(dev))
1829 sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
1830 else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
1831 sr_enabled = I915_READ(FW_BLC_SELF_VLV) & FW_CSPWRDWNEN;
1832
1833 intel_runtime_pm_put(dev_priv);
1834
1835 seq_printf(m, "self-refresh: %s\n",
1836 sr_enabled ? "enabled" : "disabled");
1837
1838 return 0;
1839 }
1840
1841 static int i915_emon_status(struct seq_file *m, void *unused)
1842 {
1843 struct drm_info_node *node = m->private;
1844 struct drm_device *dev = node->minor->dev;
1845 struct drm_i915_private *dev_priv = dev->dev_private;
1846 unsigned long temp, chipset, gfx;
1847 int ret;
1848
1849 if (!IS_GEN5(dev))
1850 return -ENODEV;
1851
1852 ret = mutex_lock_interruptible(&dev->struct_mutex);
1853 if (ret)
1854 return ret;
1855
1856 temp = i915_mch_val(dev_priv);
1857 chipset = i915_chipset_val(dev_priv);
1858 gfx = i915_gfx_val(dev_priv);
1859 mutex_unlock(&dev->struct_mutex);
1860
1861 seq_printf(m, "GMCH temp: %ld\n", temp);
1862 seq_printf(m, "Chipset power: %ld\n", chipset);
1863 seq_printf(m, "GFX power: %ld\n", gfx);
1864 seq_printf(m, "Total power: %ld\n", chipset + gfx);
1865
1866 return 0;
1867 }
1868
1869 static int i915_ring_freq_table(struct seq_file *m, void *unused)
1870 {
1871 struct drm_info_node *node = m->private;
1872 struct drm_device *dev = node->minor->dev;
1873 struct drm_i915_private *dev_priv = dev->dev_private;
1874 int ret = 0;
1875 int gpu_freq, ia_freq;
1876 unsigned int max_gpu_freq, min_gpu_freq;
1877
1878 if (!HAS_CORE_RING_FREQ(dev)) {
1879 seq_puts(m, "unsupported on this chipset\n");
1880 return 0;
1881 }
1882
1883 intel_runtime_pm_get(dev_priv);
1884
1885 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
1886
1887 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
1888 if (ret)
1889 goto out;
1890
1891 if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) {
1892 /* Convert GT frequency to 50 HZ units */
1893 min_gpu_freq =
1894 dev_priv->rps.min_freq_softlimit / GEN9_FREQ_SCALER;
1895 max_gpu_freq =
1896 dev_priv->rps.max_freq_softlimit / GEN9_FREQ_SCALER;
1897 } else {
1898 min_gpu_freq = dev_priv->rps.min_freq_softlimit;
1899 max_gpu_freq = dev_priv->rps.max_freq_softlimit;
1900 }
1901
1902 seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
1903
1904 for (gpu_freq = min_gpu_freq; gpu_freq <= max_gpu_freq; gpu_freq++) {
1905 ia_freq = gpu_freq;
1906 sandybridge_pcode_read(dev_priv,
1907 GEN6_PCODE_READ_MIN_FREQ_TABLE,
1908 &ia_freq);
1909 seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
1910 intel_gpu_freq(dev_priv, (gpu_freq *
1911 (IS_SKYLAKE(dev) || IS_KABYLAKE(dev) ?
1912 GEN9_FREQ_SCALER : 1))),
1913 ((ia_freq >> 0) & 0xff) * 100,
1914 ((ia_freq >> 8) & 0xff) * 100);
1915 }
1916
1917 mutex_unlock(&dev_priv->rps.hw_lock);
1918
1919 out:
1920 intel_runtime_pm_put(dev_priv);
1921 return ret;
1922 }
1923
1924 static int i915_opregion(struct seq_file *m, void *unused)
1925 {
1926 struct drm_info_node *node = m->private;
1927 struct drm_device *dev = node->minor->dev;
1928 struct drm_i915_private *dev_priv = dev->dev_private;
1929 struct intel_opregion *opregion = &dev_priv->opregion;
1930 int ret;
1931
1932 ret = mutex_lock_interruptible(&dev->struct_mutex);
1933 if (ret)
1934 goto out;
1935
1936 if (opregion->header)
1937 seq_write(m, opregion->header, OPREGION_SIZE);
1938
1939 mutex_unlock(&dev->struct_mutex);
1940
1941 out:
1942 return 0;
1943 }
1944
1945 static int i915_vbt(struct seq_file *m, void *unused)
1946 {
1947 struct drm_info_node *node = m->private;
1948 struct drm_device *dev = node->minor->dev;
1949 struct drm_i915_private *dev_priv = dev->dev_private;
1950 struct intel_opregion *opregion = &dev_priv->opregion;
1951
1952 if (opregion->vbt)
1953 seq_write(m, opregion->vbt, opregion->vbt_size);
1954
1955 return 0;
1956 }
1957
1958 static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
1959 {
1960 struct drm_info_node *node = m->private;
1961 struct drm_device *dev = node->minor->dev;
1962 struct intel_framebuffer *fbdev_fb = NULL;
1963 struct drm_framebuffer *drm_fb;
1964 int ret;
1965
1966 ret = mutex_lock_interruptible(&dev->struct_mutex);
1967 if (ret)
1968 return ret;
1969
1970 #ifdef CONFIG_DRM_FBDEV_EMULATION
1971 if (to_i915(dev)->fbdev) {
1972 fbdev_fb = to_intel_framebuffer(to_i915(dev)->fbdev->helper.fb);
1973
1974 seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ",
1975 fbdev_fb->base.width,
1976 fbdev_fb->base.height,
1977 fbdev_fb->base.depth,
1978 fbdev_fb->base.bits_per_pixel,
1979 fbdev_fb->base.modifier[0],
1980 drm_framebuffer_read_refcount(&fbdev_fb->base));
1981 describe_obj(m, fbdev_fb->obj);
1982 seq_putc(m, '\n');
1983 }
1984 #endif
1985
1986 mutex_lock(&dev->mode_config.fb_lock);
1987 drm_for_each_fb(drm_fb, dev) {
1988 struct intel_framebuffer *fb = to_intel_framebuffer(drm_fb);
1989 if (fb == fbdev_fb)
1990 continue;
1991
1992 seq_printf(m, "user size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ",
1993 fb->base.width,
1994 fb->base.height,
1995 fb->base.depth,
1996 fb->base.bits_per_pixel,
1997 fb->base.modifier[0],
1998 drm_framebuffer_read_refcount(&fb->base));
1999 describe_obj(m, fb->obj);
2000 seq_putc(m, '\n');
2001 }
2002 mutex_unlock(&dev->mode_config.fb_lock);
2003 mutex_unlock(&dev->struct_mutex);
2004
2005 return 0;
2006 }
2007
2008 static void describe_ctx_ringbuf(struct seq_file *m,
2009 struct intel_ringbuffer *ringbuf)
2010 {
2011 seq_printf(m, " (ringbuffer, space: %d, head: %u, tail: %u, last head: %d)",
2012 ringbuf->space, ringbuf->head, ringbuf->tail,
2013 ringbuf->last_retired_head);
2014 }
2015
2016 static int i915_context_status(struct seq_file *m, void *unused)
2017 {
2018 struct drm_info_node *node = m->private;
2019 struct drm_device *dev = node->minor->dev;
2020 struct drm_i915_private *dev_priv = dev->dev_private;
2021 struct intel_engine_cs *engine;
2022 struct i915_gem_context *ctx;
2023 int ret;
2024
2025 ret = mutex_lock_interruptible(&dev->struct_mutex);
2026 if (ret)
2027 return ret;
2028
2029 list_for_each_entry(ctx, &dev_priv->context_list, link) {
2030 seq_printf(m, "HW context %u ", ctx->hw_id);
2031 if (IS_ERR(ctx->file_priv)) {
2032 seq_puts(m, "(deleted) ");
2033 } else if (ctx->file_priv) {
2034 struct pid *pid = ctx->file_priv->file->pid;
2035 struct task_struct *task;
2036
2037 task = get_pid_task(pid, PIDTYPE_PID);
2038 if (task) {
2039 seq_printf(m, "(%s [%d]) ",
2040 task->comm, task->pid);
2041 put_task_struct(task);
2042 }
2043 } else {
2044 seq_puts(m, "(kernel) ");
2045 }
2046
2047 seq_putc(m, ctx->remap_slice ? 'R' : 'r');
2048 seq_putc(m, '\n');
2049
2050 for_each_engine(engine, dev_priv) {
2051 struct intel_context *ce = &ctx->engine[engine->id];
2052
2053 seq_printf(m, "%s: ", engine->name);
2054 seq_putc(m, ce->initialised ? 'I' : 'i');
2055 if (ce->state)
2056 describe_obj(m, ce->state);
2057 if (ce->ringbuf)
2058 describe_ctx_ringbuf(m, ce->ringbuf);
2059 seq_putc(m, '\n');
2060 }
2061
2062 seq_putc(m, '\n');
2063 }
2064
2065 mutex_unlock(&dev->struct_mutex);
2066
2067 return 0;
2068 }
2069
2070 static void i915_dump_lrc_obj(struct seq_file *m,
2071 struct i915_gem_context *ctx,
2072 struct intel_engine_cs *engine)
2073 {
2074 struct drm_i915_gem_object *ctx_obj = ctx->engine[engine->id].state;
2075 struct page *page;
2076 uint32_t *reg_state;
2077 int j;
2078 unsigned long ggtt_offset = 0;
2079
2080 seq_printf(m, "CONTEXT: %s %u\n", engine->name, ctx->hw_id);
2081
2082 if (ctx_obj == NULL) {
2083 seq_puts(m, "\tNot allocated\n");
2084 return;
2085 }
2086
2087 if (!i915_gem_obj_ggtt_bound(ctx_obj))
2088 seq_puts(m, "\tNot bound in GGTT\n");
2089 else
2090 ggtt_offset = i915_gem_obj_ggtt_offset(ctx_obj);
2091
2092 if (i915_gem_object_get_pages(ctx_obj)) {
2093 seq_puts(m, "\tFailed to get pages for context object\n");
2094 return;
2095 }
2096
2097 page = i915_gem_object_get_page(ctx_obj, LRC_STATE_PN);
2098 if (!WARN_ON(page == NULL)) {
2099 reg_state = kmap_atomic(page);
2100
2101 for (j = 0; j < 0x600 / sizeof(u32) / 4; j += 4) {
2102 seq_printf(m, "\t[0x%08lx] 0x%08x 0x%08x 0x%08x 0x%08x\n",
2103 ggtt_offset + 4096 + (j * 4),
2104 reg_state[j], reg_state[j + 1],
2105 reg_state[j + 2], reg_state[j + 3]);
2106 }
2107 kunmap_atomic(reg_state);
2108 }
2109
2110 seq_putc(m, '\n');
2111 }
2112
2113 static int i915_dump_lrc(struct seq_file *m, void *unused)
2114 {
2115 struct drm_info_node *node = (struct drm_info_node *) m->private;
2116 struct drm_device *dev = node->minor->dev;
2117 struct drm_i915_private *dev_priv = dev->dev_private;
2118 struct intel_engine_cs *engine;
2119 struct i915_gem_context *ctx;
2120 int ret;
2121
2122 if (!i915.enable_execlists) {
2123 seq_printf(m, "Logical Ring Contexts are disabled\n");
2124 return 0;
2125 }
2126
2127 ret = mutex_lock_interruptible(&dev->struct_mutex);
2128 if (ret)
2129 return ret;
2130
2131 list_for_each_entry(ctx, &dev_priv->context_list, link)
2132 for_each_engine(engine, dev_priv)
2133 i915_dump_lrc_obj(m, ctx, engine);
2134
2135 mutex_unlock(&dev->struct_mutex);
2136
2137 return 0;
2138 }
2139
2140 static int i915_execlists(struct seq_file *m, void *data)
2141 {
2142 struct drm_info_node *node = (struct drm_info_node *)m->private;
2143 struct drm_device *dev = node->minor->dev;
2144 struct drm_i915_private *dev_priv = dev->dev_private;
2145 struct intel_engine_cs *engine;
2146 u32 status_pointer;
2147 u8 read_pointer;
2148 u8 write_pointer;
2149 u32 status;
2150 u32 ctx_id;
2151 struct list_head *cursor;
2152 int i, ret;
2153
2154 if (!i915.enable_execlists) {
2155 seq_puts(m, "Logical Ring Contexts are disabled\n");
2156 return 0;
2157 }
2158
2159 ret = mutex_lock_interruptible(&dev->struct_mutex);
2160 if (ret)
2161 return ret;
2162
2163 intel_runtime_pm_get(dev_priv);
2164
2165 for_each_engine(engine, dev_priv) {
2166 struct drm_i915_gem_request *head_req = NULL;
2167 int count = 0;
2168
2169 seq_printf(m, "%s\n", engine->name);
2170
2171 status = I915_READ(RING_EXECLIST_STATUS_LO(engine));
2172 ctx_id = I915_READ(RING_EXECLIST_STATUS_HI(engine));
2173 seq_printf(m, "\tExeclist status: 0x%08X, context: %u\n",
2174 status, ctx_id);
2175
2176 status_pointer = I915_READ(RING_CONTEXT_STATUS_PTR(engine));
2177 seq_printf(m, "\tStatus pointer: 0x%08X\n", status_pointer);
2178
2179 read_pointer = engine->next_context_status_buffer;
2180 write_pointer = GEN8_CSB_WRITE_PTR(status_pointer);
2181 if (read_pointer > write_pointer)
2182 write_pointer += GEN8_CSB_ENTRIES;
2183 seq_printf(m, "\tRead pointer: 0x%08X, write pointer 0x%08X\n",
2184 read_pointer, write_pointer);
2185
2186 for (i = 0; i < GEN8_CSB_ENTRIES; i++) {
2187 status = I915_READ(RING_CONTEXT_STATUS_BUF_LO(engine, i));
2188 ctx_id = I915_READ(RING_CONTEXT_STATUS_BUF_HI(engine, i));
2189
2190 seq_printf(m, "\tStatus buffer %d: 0x%08X, context: %u\n",
2191 i, status, ctx_id);
2192 }
2193
2194 spin_lock_bh(&engine->execlist_lock);
2195 list_for_each(cursor, &engine->execlist_queue)
2196 count++;
2197 head_req = list_first_entry_or_null(&engine->execlist_queue,
2198 struct drm_i915_gem_request,
2199 execlist_link);
2200 spin_unlock_bh(&engine->execlist_lock);
2201
2202 seq_printf(m, "\t%d requests in queue\n", count);
2203 if (head_req) {
2204 seq_printf(m, "\tHead request context: %u\n",
2205 head_req->ctx->hw_id);
2206 seq_printf(m, "\tHead request tail: %u\n",
2207 head_req->tail);
2208 }
2209
2210 seq_putc(m, '\n');
2211 }
2212
2213 intel_runtime_pm_put(dev_priv);
2214 mutex_unlock(&dev->struct_mutex);
2215
2216 return 0;
2217 }
2218
2219 static const char *swizzle_string(unsigned swizzle)
2220 {
2221 switch (swizzle) {
2222 case I915_BIT_6_SWIZZLE_NONE:
2223 return "none";
2224 case I915_BIT_6_SWIZZLE_9:
2225 return "bit9";
2226 case I915_BIT_6_SWIZZLE_9_10:
2227 return "bit9/bit10";
2228 case I915_BIT_6_SWIZZLE_9_11:
2229 return "bit9/bit11";
2230 case I915_BIT_6_SWIZZLE_9_10_11:
2231 return "bit9/bit10/bit11";
2232 case I915_BIT_6_SWIZZLE_9_17:
2233 return "bit9/bit17";
2234 case I915_BIT_6_SWIZZLE_9_10_17:
2235 return "bit9/bit10/bit17";
2236 case I915_BIT_6_SWIZZLE_UNKNOWN:
2237 return "unknown";
2238 }
2239
2240 return "bug";
2241 }
2242
2243 static int i915_swizzle_info(struct seq_file *m, void *data)
2244 {
2245 struct drm_info_node *node = m->private;
2246 struct drm_device *dev = node->minor->dev;
2247 struct drm_i915_private *dev_priv = dev->dev_private;
2248 int ret;
2249
2250 ret = mutex_lock_interruptible(&dev->struct_mutex);
2251 if (ret)
2252 return ret;
2253 intel_runtime_pm_get(dev_priv);
2254
2255 seq_printf(m, "bit6 swizzle for X-tiling = %s\n",
2256 swizzle_string(dev_priv->mm.bit_6_swizzle_x));
2257 seq_printf(m, "bit6 swizzle for Y-tiling = %s\n",
2258 swizzle_string(dev_priv->mm.bit_6_swizzle_y));
2259
2260 if (IS_GEN3(dev) || IS_GEN4(dev)) {
2261 seq_printf(m, "DDC = 0x%08x\n",
2262 I915_READ(DCC));
2263 seq_printf(m, "DDC2 = 0x%08x\n",
2264 I915_READ(DCC2));
2265 seq_printf(m, "C0DRB3 = 0x%04x\n",
2266 I915_READ16(C0DRB3));
2267 seq_printf(m, "C1DRB3 = 0x%04x\n",
2268 I915_READ16(C1DRB3));
2269 } else if (INTEL_INFO(dev)->gen >= 6) {
2270 seq_printf(m, "MAD_DIMM_C0 = 0x%08x\n",
2271 I915_READ(MAD_DIMM_C0));
2272 seq_printf(m, "MAD_DIMM_C1 = 0x%08x\n",
2273 I915_READ(MAD_DIMM_C1));
2274 seq_printf(m, "MAD_DIMM_C2 = 0x%08x\n",
2275 I915_READ(MAD_DIMM_C2));
2276 seq_printf(m, "TILECTL = 0x%08x\n",
2277 I915_READ(TILECTL));
2278 if (INTEL_INFO(dev)->gen >= 8)
2279 seq_printf(m, "GAMTARBMODE = 0x%08x\n",
2280 I915_READ(GAMTARBMODE));
2281 else
2282 seq_printf(m, "ARB_MODE = 0x%08x\n",
2283 I915_READ(ARB_MODE));
2284 seq_printf(m, "DISP_ARB_CTL = 0x%08x\n",
2285 I915_READ(DISP_ARB_CTL));
2286 }
2287
2288 if (dev_priv->quirks & QUIRK_PIN_SWIZZLED_PAGES)
2289 seq_puts(m, "L-shaped memory detected\n");
2290
2291 intel_runtime_pm_put(dev_priv);
2292 mutex_unlock(&dev->struct_mutex);
2293
2294 return 0;
2295 }
2296
2297 static int per_file_ctx(int id, void *ptr, void *data)
2298 {
2299 struct i915_gem_context *ctx = ptr;
2300 struct seq_file *m = data;
2301 struct i915_hw_ppgtt *ppgtt = ctx->ppgtt;
2302
2303 if (!ppgtt) {
2304 seq_printf(m, " no ppgtt for context %d\n",
2305 ctx->user_handle);
2306 return 0;
2307 }
2308
2309 if (i915_gem_context_is_default(ctx))
2310 seq_puts(m, " default context:\n");
2311 else
2312 seq_printf(m, " context %d:\n", ctx->user_handle);
2313 ppgtt->debug_dump(ppgtt, m);
2314
2315 return 0;
2316 }
2317
2318 static void gen8_ppgtt_info(struct seq_file *m, struct drm_device *dev)
2319 {
2320 struct drm_i915_private *dev_priv = dev->dev_private;
2321 struct intel_engine_cs *engine;
2322 struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
2323 int i;
2324
2325 if (!ppgtt)
2326 return;
2327
2328 for_each_engine(engine, dev_priv) {
2329 seq_printf(m, "%s\n", engine->name);
2330 for (i = 0; i < 4; i++) {
2331 u64 pdp = I915_READ(GEN8_RING_PDP_UDW(engine, i));
2332 pdp <<= 32;
2333 pdp |= I915_READ(GEN8_RING_PDP_LDW(engine, i));
2334 seq_printf(m, "\tPDP%d 0x%016llx\n", i, pdp);
2335 }
2336 }
2337 }
2338
2339 static void gen6_ppgtt_info(struct seq_file *m, struct drm_device *dev)
2340 {
2341 struct drm_i915_private *dev_priv = dev->dev_private;
2342 struct intel_engine_cs *engine;
2343
2344 if (IS_GEN6(dev_priv))
2345 seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(GFX_MODE));
2346
2347 for_each_engine(engine, dev_priv) {
2348 seq_printf(m, "%s\n", engine->name);
2349 if (IS_GEN7(dev_priv))
2350 seq_printf(m, "GFX_MODE: 0x%08x\n",
2351 I915_READ(RING_MODE_GEN7(engine)));
2352 seq_printf(m, "PP_DIR_BASE: 0x%08x\n",
2353 I915_READ(RING_PP_DIR_BASE(engine)));
2354 seq_printf(m, "PP_DIR_BASE_READ: 0x%08x\n",
2355 I915_READ(RING_PP_DIR_BASE_READ(engine)));
2356 seq_printf(m, "PP_DIR_DCLV: 0x%08x\n",
2357 I915_READ(RING_PP_DIR_DCLV(engine)));
2358 }
2359 if (dev_priv->mm.aliasing_ppgtt) {
2360 struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
2361
2362 seq_puts(m, "aliasing PPGTT:\n");
2363 seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd.base.ggtt_offset);
2364
2365 ppgtt->debug_dump(ppgtt, m);
2366 }
2367
2368 seq_printf(m, "ECOCHK: 0x%08x\n", I915_READ(GAM_ECOCHK));
2369 }
2370
2371 static int i915_ppgtt_info(struct seq_file *m, void *data)
2372 {
2373 struct drm_info_node *node = m->private;
2374 struct drm_device *dev = node->minor->dev;
2375 struct drm_i915_private *dev_priv = dev->dev_private;
2376 struct drm_file *file;
2377
2378 int ret = mutex_lock_interruptible(&dev->struct_mutex);
2379 if (ret)
2380 return ret;
2381 intel_runtime_pm_get(dev_priv);
2382
2383 if (INTEL_INFO(dev)->gen >= 8)
2384 gen8_ppgtt_info(m, dev);
2385 else if (INTEL_INFO(dev)->gen >= 6)
2386 gen6_ppgtt_info(m, dev);
2387
2388 mutex_lock(&dev->filelist_mutex);
2389 list_for_each_entry_reverse(file, &dev->filelist, lhead) {
2390 struct drm_i915_file_private *file_priv = file->driver_priv;
2391 struct task_struct *task;
2392
2393 task = get_pid_task(file->pid, PIDTYPE_PID);
2394 if (!task) {
2395 ret = -ESRCH;
2396 goto out_unlock;
2397 }
2398 seq_printf(m, "\nproc: %s\n", task->comm);
2399 put_task_struct(task);
2400 idr_for_each(&file_priv->context_idr, per_file_ctx,
2401 (void *)(unsigned long)m);
2402 }
2403 out_unlock:
2404 mutex_unlock(&dev->filelist_mutex);
2405
2406 intel_runtime_pm_put(dev_priv);
2407 mutex_unlock(&dev->struct_mutex);
2408
2409 return ret;
2410 }
2411
2412 static int count_irq_waiters(struct drm_i915_private *i915)
2413 {
2414 struct intel_engine_cs *engine;
2415 int count = 0;
2416
2417 for_each_engine(engine, i915)
2418 count += engine->irq_refcount;
2419
2420 return count;
2421 }
2422
2423 static int i915_rps_boost_info(struct seq_file *m, void *data)
2424 {
2425 struct drm_info_node *node = m->private;
2426 struct drm_device *dev = node->minor->dev;
2427 struct drm_i915_private *dev_priv = dev->dev_private;
2428 struct drm_file *file;
2429
2430 seq_printf(m, "RPS enabled? %d\n", dev_priv->rps.enabled);
2431 seq_printf(m, "GPU busy? %d\n", dev_priv->mm.busy);
2432 seq_printf(m, "CPU waiting? %d\n", count_irq_waiters(dev_priv));
2433 seq_printf(m, "Frequency requested %d; min hard:%d, soft:%d; max soft:%d, hard:%d\n",
2434 intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq),
2435 intel_gpu_freq(dev_priv, dev_priv->rps.min_freq),
2436 intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit),
2437 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit),
2438 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
2439
2440 mutex_lock(&dev->filelist_mutex);
2441 spin_lock(&dev_priv->rps.client_lock);
2442 list_for_each_entry_reverse(file, &dev->filelist, lhead) {
2443 struct drm_i915_file_private *file_priv = file->driver_priv;
2444 struct task_struct *task;
2445
2446 rcu_read_lock();
2447 task = pid_task(file->pid, PIDTYPE_PID);
2448 seq_printf(m, "%s [%d]: %d boosts%s\n",
2449 task ? task->comm : "<unknown>",
2450 task ? task->pid : -1,
2451 file_priv->rps.boosts,
2452 list_empty(&file_priv->rps.link) ? "" : ", active");
2453 rcu_read_unlock();
2454 }
2455 seq_printf(m, "Semaphore boosts: %d%s\n",
2456 dev_priv->rps.semaphores.boosts,
2457 list_empty(&dev_priv->rps.semaphores.link) ? "" : ", active");
2458 seq_printf(m, "MMIO flip boosts: %d%s\n",
2459 dev_priv->rps.mmioflips.boosts,
2460 list_empty(&dev_priv->rps.mmioflips.link) ? "" : ", active");
2461 seq_printf(m, "Kernel boosts: %d\n", dev_priv->rps.boosts);
2462 spin_unlock(&dev_priv->rps.client_lock);
2463 mutex_unlock(&dev->filelist_mutex);
2464
2465 return 0;
2466 }
2467
2468 static int i915_llc(struct seq_file *m, void *data)
2469 {
2470 struct drm_info_node *node = m->private;
2471 struct drm_device *dev = node->minor->dev;
2472 struct drm_i915_private *dev_priv = dev->dev_private;
2473 const bool edram = INTEL_GEN(dev_priv) > 8;
2474
2475 seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(dev)));
2476 seq_printf(m, "%s: %lluMB\n", edram ? "eDRAM" : "eLLC",
2477 intel_uncore_edram_size(dev_priv)/1024/1024);
2478
2479 return 0;
2480 }
2481
2482 static int i915_guc_load_status_info(struct seq_file *m, void *data)
2483 {
2484 struct drm_info_node *node = m->private;
2485 struct drm_i915_private *dev_priv = node->minor->dev->dev_private;
2486 struct intel_guc_fw *guc_fw = &dev_priv->guc.guc_fw;
2487 u32 tmp, i;
2488
2489 if (!HAS_GUC_UCODE(dev_priv))
2490 return 0;
2491
2492 seq_printf(m, "GuC firmware status:\n");
2493 seq_printf(m, "\tpath: %s\n",
2494 guc_fw->guc_fw_path);
2495 seq_printf(m, "\tfetch: %s\n",
2496 intel_guc_fw_status_repr(guc_fw->guc_fw_fetch_status));
2497 seq_printf(m, "\tload: %s\n",
2498 intel_guc_fw_status_repr(guc_fw->guc_fw_load_status));
2499 seq_printf(m, "\tversion wanted: %d.%d\n",
2500 guc_fw->guc_fw_major_wanted, guc_fw->guc_fw_minor_wanted);
2501 seq_printf(m, "\tversion found: %d.%d\n",
2502 guc_fw->guc_fw_major_found, guc_fw->guc_fw_minor_found);
2503 seq_printf(m, "\theader: offset is %d; size = %d\n",
2504 guc_fw->header_offset, guc_fw->header_size);
2505 seq_printf(m, "\tuCode: offset is %d; size = %d\n",
2506 guc_fw->ucode_offset, guc_fw->ucode_size);
2507 seq_printf(m, "\tRSA: offset is %d; size = %d\n",
2508 guc_fw->rsa_offset, guc_fw->rsa_size);
2509
2510 tmp = I915_READ(GUC_STATUS);
2511
2512 seq_printf(m, "\nGuC status 0x%08x:\n", tmp);
2513 seq_printf(m, "\tBootrom status = 0x%x\n",
2514 (tmp & GS_BOOTROM_MASK) >> GS_BOOTROM_SHIFT);
2515 seq_printf(m, "\tuKernel status = 0x%x\n",
2516 (tmp & GS_UKERNEL_MASK) >> GS_UKERNEL_SHIFT);
2517 seq_printf(m, "\tMIA Core status = 0x%x\n",
2518 (tmp & GS_MIA_MASK) >> GS_MIA_SHIFT);
2519 seq_puts(m, "\nScratch registers:\n");
2520 for (i = 0; i < 16; i++)
2521 seq_printf(m, "\t%2d: \t0x%x\n", i, I915_READ(SOFT_SCRATCH(i)));
2522
2523 return 0;
2524 }
2525
2526 static void i915_guc_client_info(struct seq_file *m,
2527 struct drm_i915_private *dev_priv,
2528 struct i915_guc_client *client)
2529 {
2530 struct intel_engine_cs *engine;
2531 uint64_t tot = 0;
2532
2533 seq_printf(m, "\tPriority %d, GuC ctx index: %u, PD offset 0x%x\n",
2534 client->priority, client->ctx_index, client->proc_desc_offset);
2535 seq_printf(m, "\tDoorbell id %d, offset: 0x%x, cookie 0x%x\n",
2536 client->doorbell_id, client->doorbell_offset, client->cookie);
2537 seq_printf(m, "\tWQ size %d, offset: 0x%x, tail %d\n",
2538 client->wq_size, client->wq_offset, client->wq_tail);
2539
2540 seq_printf(m, "\tWork queue full: %u\n", client->no_wq_space);
2541 seq_printf(m, "\tFailed to queue: %u\n", client->q_fail);
2542 seq_printf(m, "\tFailed doorbell: %u\n", client->b_fail);
2543 seq_printf(m, "\tLast submission result: %d\n", client->retcode);
2544
2545 for_each_engine(engine, dev_priv) {
2546 seq_printf(m, "\tSubmissions: %llu %s\n",
2547 client->submissions[engine->id],
2548 engine->name);
2549 tot += client->submissions[engine->id];
2550 }
2551 seq_printf(m, "\tTotal: %llu\n", tot);
2552 }
2553
2554 static int i915_guc_info(struct seq_file *m, void *data)
2555 {
2556 struct drm_info_node *node = m->private;
2557 struct drm_device *dev = node->minor->dev;
2558 struct drm_i915_private *dev_priv = dev->dev_private;
2559 struct intel_guc guc;
2560 struct i915_guc_client client = {};
2561 struct intel_engine_cs *engine;
2562 u64 total = 0;
2563
2564 if (!HAS_GUC_SCHED(dev_priv))
2565 return 0;
2566
2567 if (mutex_lock_interruptible(&dev->struct_mutex))
2568 return 0;
2569
2570 /* Take a local copy of the GuC data, so we can dump it at leisure */
2571 guc = dev_priv->guc;
2572 if (guc.execbuf_client)
2573 client = *guc.execbuf_client;
2574
2575 mutex_unlock(&dev->struct_mutex);
2576
2577 seq_printf(m, "Doorbell map:\n");
2578 seq_printf(m, "\t%*pb\n", GUC_MAX_DOORBELLS, guc.doorbell_bitmap);
2579 seq_printf(m, "Doorbell next cacheline: 0x%x\n\n", guc.db_cacheline);
2580
2581 seq_printf(m, "GuC total action count: %llu\n", guc.action_count);
2582 seq_printf(m, "GuC action failure count: %u\n", guc.action_fail);
2583 seq_printf(m, "GuC last action command: 0x%x\n", guc.action_cmd);
2584 seq_printf(m, "GuC last action status: 0x%x\n", guc.action_status);
2585 seq_printf(m, "GuC last action error code: %d\n", guc.action_err);
2586
2587 seq_printf(m, "\nGuC submissions:\n");
2588 for_each_engine(engine, dev_priv) {
2589 seq_printf(m, "\t%-24s: %10llu, last seqno 0x%08x\n",
2590 engine->name, guc.submissions[engine->id],
2591 guc.last_seqno[engine->id]);
2592 total += guc.submissions[engine->id];
2593 }
2594 seq_printf(m, "\t%s: %llu\n", "Total", total);
2595
2596 seq_printf(m, "\nGuC execbuf client @ %p:\n", guc.execbuf_client);
2597 i915_guc_client_info(m, dev_priv, &client);
2598
2599 /* Add more as required ... */
2600
2601 return 0;
2602 }
2603
2604 static int i915_guc_log_dump(struct seq_file *m, void *data)
2605 {
2606 struct drm_info_node *node = m->private;
2607 struct drm_device *dev = node->minor->dev;
2608 struct drm_i915_private *dev_priv = dev->dev_private;
2609 struct drm_i915_gem_object *log_obj = dev_priv->guc.log_obj;
2610 u32 *log;
2611 int i = 0, pg;
2612
2613 if (!log_obj)
2614 return 0;
2615
2616 for (pg = 0; pg < log_obj->base.size / PAGE_SIZE; pg++) {
2617 log = kmap_atomic(i915_gem_object_get_page(log_obj, pg));
2618
2619 for (i = 0; i < PAGE_SIZE / sizeof(u32); i += 4)
2620 seq_printf(m, "0x%08x 0x%08x 0x%08x 0x%08x\n",
2621 *(log + i), *(log + i + 1),
2622 *(log + i + 2), *(log + i + 3));
2623
2624 kunmap_atomic(log);
2625 }
2626
2627 seq_putc(m, '\n');
2628
2629 return 0;
2630 }
2631
2632 static int i915_edp_psr_status(struct seq_file *m, void *data)
2633 {
2634 struct drm_info_node *node = m->private;
2635 struct drm_device *dev = node->minor->dev;
2636 struct drm_i915_private *dev_priv = dev->dev_private;
2637 u32 psrperf = 0;
2638 u32 stat[3];
2639 enum pipe pipe;
2640 bool enabled = false;
2641
2642 if (!HAS_PSR(dev)) {
2643 seq_puts(m, "PSR not supported\n");
2644 return 0;
2645 }
2646
2647 intel_runtime_pm_get(dev_priv);
2648
2649 mutex_lock(&dev_priv->psr.lock);
2650 seq_printf(m, "Sink_Support: %s\n", yesno(dev_priv->psr.sink_support));
2651 seq_printf(m, "Source_OK: %s\n", yesno(dev_priv->psr.source_ok));
2652 seq_printf(m, "Enabled: %s\n", yesno((bool)dev_priv->psr.enabled));
2653 seq_printf(m, "Active: %s\n", yesno(dev_priv->psr.active));
2654 seq_printf(m, "Busy frontbuffer bits: 0x%03x\n",
2655 dev_priv->psr.busy_frontbuffer_bits);
2656 seq_printf(m, "Re-enable work scheduled: %s\n",
2657 yesno(work_busy(&dev_priv->psr.work.work)));
2658
2659 if (HAS_DDI(dev))
2660 enabled = I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE;
2661 else {
2662 for_each_pipe(dev_priv, pipe) {
2663 stat[pipe] = I915_READ(VLV_PSRSTAT(pipe)) &
2664 VLV_EDP_PSR_CURR_STATE_MASK;
2665 if ((stat[pipe] == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
2666 (stat[pipe] == VLV_EDP_PSR_ACTIVE_SF_UPDATE))
2667 enabled = true;
2668 }
2669 }
2670
2671 seq_printf(m, "Main link in standby mode: %s\n",
2672 yesno(dev_priv->psr.link_standby));
2673
2674 seq_printf(m, "HW Enabled & Active bit: %s", yesno(enabled));
2675
2676 if (!HAS_DDI(dev))
2677 for_each_pipe(dev_priv, pipe) {
2678 if ((stat[pipe] == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
2679 (stat[pipe] == VLV_EDP_PSR_ACTIVE_SF_UPDATE))
2680 seq_printf(m, " pipe %c", pipe_name(pipe));
2681 }
2682 seq_puts(m, "\n");
2683
2684 /*
2685 * VLV/CHV PSR has no kind of performance counter
2686 * SKL+ Perf counter is reset to 0 everytime DC state is entered
2687 */
2688 if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
2689 psrperf = I915_READ(EDP_PSR_PERF_CNT) &
2690 EDP_PSR_PERF_CNT_MASK;
2691
2692 seq_printf(m, "Performance_Counter: %u\n", psrperf);
2693 }
2694 mutex_unlock(&dev_priv->psr.lock);
2695
2696 intel_runtime_pm_put(dev_priv);
2697 return 0;
2698 }
2699
2700 static int i915_sink_crc(struct seq_file *m, void *data)
2701 {
2702 struct drm_info_node *node = m->private;
2703 struct drm_device *dev = node->minor->dev;
2704 struct intel_connector *connector;
2705 struct intel_dp *intel_dp = NULL;
2706 int ret;
2707 u8 crc[6];
2708
2709 drm_modeset_lock_all(dev);
2710 for_each_intel_connector(dev, connector) {
2711 struct drm_crtc *crtc;
2712
2713 if (!connector->base.state->best_encoder)
2714 continue;
2715
2716 crtc = connector->base.state->crtc;
2717 if (!crtc->state->active)
2718 continue;
2719
2720 if (connector->base.connector_type != DRM_MODE_CONNECTOR_eDP)
2721 continue;
2722
2723 intel_dp = enc_to_intel_dp(connector->base.state->best_encoder);
2724
2725 ret = intel_dp_sink_crc(intel_dp, crc);
2726 if (ret)
2727 goto out;
2728
2729 seq_printf(m, "%02x%02x%02x%02x%02x%02x\n",
2730 crc[0], crc[1], crc[2],
2731 crc[3], crc[4], crc[5]);
2732 goto out;
2733 }
2734 ret = -ENODEV;
2735 out:
2736 drm_modeset_unlock_all(dev);
2737 return ret;
2738 }
2739
2740 static int i915_energy_uJ(struct seq_file *m, void *data)
2741 {
2742 struct drm_info_node *node = m->private;
2743 struct drm_device *dev = node->minor->dev;
2744 struct drm_i915_private *dev_priv = dev->dev_private;
2745 u64 power;
2746 u32 units;
2747
2748 if (INTEL_INFO(dev)->gen < 6)
2749 return -ENODEV;
2750
2751 intel_runtime_pm_get(dev_priv);
2752
2753 rdmsrl(MSR_RAPL_POWER_UNIT, power);
2754 power = (power & 0x1f00) >> 8;
2755 units = 1000000 / (1 << power); /* convert to uJ */
2756 power = I915_READ(MCH_SECP_NRG_STTS);
2757 power *= units;
2758
2759 intel_runtime_pm_put(dev_priv);
2760
2761 seq_printf(m, "%llu", (long long unsigned)power);
2762
2763 return 0;
2764 }
2765
2766 static int i915_runtime_pm_status(struct seq_file *m, void *unused)
2767 {
2768 struct drm_info_node *node = m->private;
2769 struct drm_device *dev = node->minor->dev;
2770 struct drm_i915_private *dev_priv = dev->dev_private;
2771
2772 if (!HAS_RUNTIME_PM(dev_priv))
2773 seq_puts(m, "Runtime power management not supported\n");
2774
2775 seq_printf(m, "GPU idle: %s\n", yesno(!dev_priv->mm.busy));
2776 seq_printf(m, "IRQs disabled: %s\n",
2777 yesno(!intel_irqs_enabled(dev_priv)));
2778 #ifdef CONFIG_PM
2779 seq_printf(m, "Usage count: %d\n",
2780 atomic_read(&dev->dev->power.usage_count));
2781 #else
2782 seq_printf(m, "Device Power Management (CONFIG_PM) disabled\n");
2783 #endif
2784 seq_printf(m, "PCI device power state: %s [%d]\n",
2785 pci_power_name(dev_priv->dev->pdev->current_state),
2786 dev_priv->dev->pdev->current_state);
2787
2788 return 0;
2789 }
2790
2791 static int i915_power_domain_info(struct seq_file *m, void *unused)
2792 {
2793 struct drm_info_node *node = m->private;
2794 struct drm_device *dev = node->minor->dev;
2795 struct drm_i915_private *dev_priv = dev->dev_private;
2796 struct i915_power_domains *power_domains = &dev_priv->power_domains;
2797 int i;
2798
2799 mutex_lock(&power_domains->lock);
2800
2801 seq_printf(m, "%-25s %s\n", "Power well/domain", "Use count");
2802 for (i = 0; i < power_domains->power_well_count; i++) {
2803 struct i915_power_well *power_well;
2804 enum intel_display_power_domain power_domain;
2805
2806 power_well = &power_domains->power_wells[i];
2807 seq_printf(m, "%-25s %d\n", power_well->name,
2808 power_well->count);
2809
2810 for (power_domain = 0; power_domain < POWER_DOMAIN_NUM;
2811 power_domain++) {
2812 if (!(BIT(power_domain) & power_well->domains))
2813 continue;
2814
2815 seq_printf(m, " %-23s %d\n",
2816 intel_display_power_domain_str(power_domain),
2817 power_domains->domain_use_count[power_domain]);
2818 }
2819 }
2820
2821 mutex_unlock(&power_domains->lock);
2822
2823 return 0;
2824 }
2825
2826 static int i915_dmc_info(struct seq_file *m, void *unused)
2827 {
2828 struct drm_info_node *node = m->private;
2829 struct drm_device *dev = node->minor->dev;
2830 struct drm_i915_private *dev_priv = dev->dev_private;
2831 struct intel_csr *csr;
2832
2833 if (!HAS_CSR(dev)) {
2834 seq_puts(m, "not supported\n");
2835 return 0;
2836 }
2837
2838 csr = &dev_priv->csr;
2839
2840 intel_runtime_pm_get(dev_priv);
2841
2842 seq_printf(m, "fw loaded: %s\n", yesno(csr->dmc_payload != NULL));
2843 seq_printf(m, "path: %s\n", csr->fw_path);
2844
2845 if (!csr->dmc_payload)
2846 goto out;
2847
2848 seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version),
2849 CSR_VERSION_MINOR(csr->version));
2850
2851 if (IS_SKYLAKE(dev) && csr->version >= CSR_VERSION(1, 6)) {
2852 seq_printf(m, "DC3 -> DC5 count: %d\n",
2853 I915_READ(SKL_CSR_DC3_DC5_COUNT));
2854 seq_printf(m, "DC5 -> DC6 count: %d\n",
2855 I915_READ(SKL_CSR_DC5_DC6_COUNT));
2856 } else if (IS_BROXTON(dev) && csr->version >= CSR_VERSION(1, 4)) {
2857 seq_printf(m, "DC3 -> DC5 count: %d\n",
2858 I915_READ(BXT_CSR_DC3_DC5_COUNT));
2859 }
2860
2861 out:
2862 seq_printf(m, "program base: 0x%08x\n", I915_READ(CSR_PROGRAM(0)));
2863 seq_printf(m, "ssp base: 0x%08x\n", I915_READ(CSR_SSP_BASE));
2864 seq_printf(m, "htp: 0x%08x\n", I915_READ(CSR_HTP_SKL));
2865
2866 intel_runtime_pm_put(dev_priv);
2867
2868 return 0;
2869 }
2870
2871 static void intel_seq_print_mode(struct seq_file *m, int tabs,
2872 struct drm_display_mode *mode)
2873 {
2874 int i;
2875
2876 for (i = 0; i < tabs; i++)
2877 seq_putc(m, '\t');
2878
2879 seq_printf(m, "id %d:\"%s\" freq %d clock %d hdisp %d hss %d hse %d htot %d vdisp %d vss %d vse %d vtot %d type 0x%x flags 0x%x\n",
2880 mode->base.id, mode->name,
2881 mode->vrefresh, mode->clock,
2882 mode->hdisplay, mode->hsync_start,
2883 mode->hsync_end, mode->htotal,
2884 mode->vdisplay, mode->vsync_start,
2885 mode->vsync_end, mode->vtotal,
2886 mode->type, mode->flags);
2887 }
2888
2889 static void intel_encoder_info(struct seq_file *m,
2890 struct intel_crtc *intel_crtc,
2891 struct intel_encoder *intel_encoder)
2892 {
2893 struct drm_info_node *node = m->private;
2894 struct drm_device *dev = node->minor->dev;
2895 struct drm_crtc *crtc = &intel_crtc->base;
2896 struct intel_connector *intel_connector;
2897 struct drm_encoder *encoder;
2898
2899 encoder = &intel_encoder->base;
2900 seq_printf(m, "\tencoder %d: type: %s, connectors:\n",
2901 encoder->base.id, encoder->name);
2902 for_each_connector_on_encoder(dev, encoder, intel_connector) {
2903 struct drm_connector *connector = &intel_connector->base;
2904 seq_printf(m, "\t\tconnector %d: type: %s, status: %s",
2905 connector->base.id,
2906 connector->name,
2907 drm_get_connector_status_name(connector->status));
2908 if (connector->status == connector_status_connected) {
2909 struct drm_display_mode *mode = &crtc->mode;
2910 seq_printf(m, ", mode:\n");
2911 intel_seq_print_mode(m, 2, mode);
2912 } else {
2913 seq_putc(m, '\n');
2914 }
2915 }
2916 }
2917
2918 static void intel_crtc_info(struct seq_file *m, struct intel_crtc *intel_crtc)
2919 {
2920 struct drm_info_node *node = m->private;
2921 struct drm_device *dev = node->minor->dev;
2922 struct drm_crtc *crtc = &intel_crtc->base;
2923 struct intel_encoder *intel_encoder;
2924 struct drm_plane_state *plane_state = crtc->primary->state;
2925 struct drm_framebuffer *fb = plane_state->fb;
2926
2927 if (fb)
2928 seq_printf(m, "\tfb: %d, pos: %dx%d, size: %dx%d\n",
2929 fb->base.id, plane_state->src_x >> 16,
2930 plane_state->src_y >> 16, fb->width, fb->height);
2931 else
2932 seq_puts(m, "\tprimary plane disabled\n");
2933 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
2934 intel_encoder_info(m, intel_crtc, intel_encoder);
2935 }
2936
2937 static void intel_panel_info(struct seq_file *m, struct intel_panel *panel)
2938 {
2939 struct drm_display_mode *mode = panel->fixed_mode;
2940
2941 seq_printf(m, "\tfixed mode:\n");
2942 intel_seq_print_mode(m, 2, mode);
2943 }
2944
2945 static void intel_dp_info(struct seq_file *m,
2946 struct intel_connector *intel_connector)
2947 {
2948 struct intel_encoder *intel_encoder = intel_connector->encoder;
2949 struct intel_dp *intel_dp = enc_to_intel_dp(&intel_encoder->base);
2950
2951 seq_printf(m, "\tDPCD rev: %x\n", intel_dp->dpcd[DP_DPCD_REV]);
2952 seq_printf(m, "\taudio support: %s\n", yesno(intel_dp->has_audio));
2953 if (intel_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)
2954 intel_panel_info(m, &intel_connector->panel);
2955 }
2956
2957 static void intel_hdmi_info(struct seq_file *m,
2958 struct intel_connector *intel_connector)
2959 {
2960 struct intel_encoder *intel_encoder = intel_connector->encoder;
2961 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&intel_encoder->base);
2962
2963 seq_printf(m, "\taudio support: %s\n", yesno(intel_hdmi->has_audio));
2964 }
2965
2966 static void intel_lvds_info(struct seq_file *m,
2967 struct intel_connector *intel_connector)
2968 {
2969 intel_panel_info(m, &intel_connector->panel);
2970 }
2971
2972 static void intel_connector_info(struct seq_file *m,
2973 struct drm_connector *connector)
2974 {
2975 struct intel_connector *intel_connector = to_intel_connector(connector);
2976 struct intel_encoder *intel_encoder = intel_connector->encoder;
2977 struct drm_display_mode *mode;
2978
2979 seq_printf(m, "connector %d: type %s, status: %s\n",
2980 connector->base.id, connector->name,
2981 drm_get_connector_status_name(connector->status));
2982 if (connector->status == connector_status_connected) {
2983 seq_printf(m, "\tname: %s\n", connector->display_info.name);
2984 seq_printf(m, "\tphysical dimensions: %dx%dmm\n",
2985 connector->display_info.width_mm,
2986 connector->display_info.height_mm);
2987 seq_printf(m, "\tsubpixel order: %s\n",
2988 drm_get_subpixel_order_name(connector->display_info.subpixel_order));
2989 seq_printf(m, "\tCEA rev: %d\n",
2990 connector->display_info.cea_rev);
2991 }
2992
2993 if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
2994 return;
2995
2996 switch (connector->connector_type) {
2997 case DRM_MODE_CONNECTOR_DisplayPort:
2998 case DRM_MODE_CONNECTOR_eDP:
2999 intel_dp_info(m, intel_connector);
3000 break;
3001 case DRM_MODE_CONNECTOR_LVDS:
3002 if (intel_encoder->type == INTEL_OUTPUT_LVDS)
3003 intel_lvds_info(m, intel_connector);
3004 break;
3005 case DRM_MODE_CONNECTOR_HDMIA:
3006 if (intel_encoder->type == INTEL_OUTPUT_HDMI ||
3007 intel_encoder->type == INTEL_OUTPUT_UNKNOWN)
3008 intel_hdmi_info(m, intel_connector);
3009 break;
3010 default:
3011 break;
3012 }
3013
3014 seq_printf(m, "\tmodes:\n");
3015 list_for_each_entry(mode, &connector->modes, head)
3016 intel_seq_print_mode(m, 2, mode);
3017 }
3018
3019 static bool cursor_active(struct drm_device *dev, int pipe)
3020 {
3021 struct drm_i915_private *dev_priv = dev->dev_private;
3022 u32 state;
3023
3024 if (IS_845G(dev) || IS_I865G(dev))
3025 state = I915_READ(CURCNTR(PIPE_A)) & CURSOR_ENABLE;
3026 else
3027 state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE;
3028
3029 return state;
3030 }
3031
3032 static bool cursor_position(struct drm_device *dev, int pipe, int *x, int *y)
3033 {
3034 struct drm_i915_private *dev_priv = dev->dev_private;
3035 u32 pos;
3036
3037 pos = I915_READ(CURPOS(pipe));
3038
3039 *x = (pos >> CURSOR_X_SHIFT) & CURSOR_POS_MASK;
3040 if (pos & (CURSOR_POS_SIGN << CURSOR_X_SHIFT))
3041 *x = -*x;
3042
3043 *y = (pos >> CURSOR_Y_SHIFT) & CURSOR_POS_MASK;
3044 if (pos & (CURSOR_POS_SIGN << CURSOR_Y_SHIFT))
3045 *y = -*y;
3046
3047 return cursor_active(dev, pipe);
3048 }
3049
3050 static const char *plane_type(enum drm_plane_type type)
3051 {
3052 switch (type) {
3053 case DRM_PLANE_TYPE_OVERLAY:
3054 return "OVL";
3055 case DRM_PLANE_TYPE_PRIMARY:
3056 return "PRI";
3057 case DRM_PLANE_TYPE_CURSOR:
3058 return "CUR";
3059 /*
3060 * Deliberately omitting default: to generate compiler warnings
3061 * when a new drm_plane_type gets added.
3062 */
3063 }
3064
3065 return "unknown";
3066 }
3067
3068 static const char *plane_rotation(unsigned int rotation)
3069 {
3070 static char buf[48];
3071 /*
3072 * According to doc only one DRM_ROTATE_ is allowed but this
3073 * will print them all to visualize if the values are misused
3074 */
3075 snprintf(buf, sizeof(buf),
3076 "%s%s%s%s%s%s(0x%08x)",
3077 (rotation & BIT(DRM_ROTATE_0)) ? "0 " : "",
3078 (rotation & BIT(DRM_ROTATE_90)) ? "90 " : "",
3079 (rotation & BIT(DRM_ROTATE_180)) ? "180 " : "",
3080 (rotation & BIT(DRM_ROTATE_270)) ? "270 " : "",
3081 (rotation & BIT(DRM_REFLECT_X)) ? "FLIPX " : "",
3082 (rotation & BIT(DRM_REFLECT_Y)) ? "FLIPY " : "",
3083 rotation);
3084
3085 return buf;
3086 }
3087
3088 static void intel_plane_info(struct seq_file *m, struct intel_crtc *intel_crtc)
3089 {
3090 struct drm_info_node *node = m->private;
3091 struct drm_device *dev = node->minor->dev;
3092 struct intel_plane *intel_plane;
3093
3094 for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) {
3095 struct drm_plane_state *state;
3096 struct drm_plane *plane = &intel_plane->base;
3097
3098 if (!plane->state) {
3099 seq_puts(m, "plane->state is NULL!\n");
3100 continue;
3101 }
3102
3103 state = plane->state;
3104
3105 seq_printf(m, "\t--Plane id %d: type=%s, crtc_pos=%4dx%4d, crtc_size=%4dx%4d, src_pos=%d.%04ux%d.%04u, src_size=%d.%04ux%d.%04u, format=%s, rotation=%s\n",
3106 plane->base.id,
3107 plane_type(intel_plane->base.type),
3108 state->crtc_x, state->crtc_y,
3109 state->crtc_w, state->crtc_h,
3110 (state->src_x >> 16),
3111 ((state->src_x & 0xffff) * 15625) >> 10,
3112 (state->src_y >> 16),
3113 ((state->src_y & 0xffff) * 15625) >> 10,
3114 (state->src_w >> 16),
3115 ((state->src_w & 0xffff) * 15625) >> 10,
3116 (state->src_h >> 16),
3117 ((state->src_h & 0xffff) * 15625) >> 10,
3118 state->fb ? drm_get_format_name(state->fb->pixel_format) : "N/A",
3119 plane_rotation(state->rotation));
3120 }
3121 }
3122
3123 static void intel_scaler_info(struct seq_file *m, struct intel_crtc *intel_crtc)
3124 {
3125 struct intel_crtc_state *pipe_config;
3126 int num_scalers = intel_crtc->num_scalers;
3127 int i;
3128
3129 pipe_config = to_intel_crtc_state(intel_crtc->base.state);
3130
3131 /* Not all platformas have a scaler */
3132 if (num_scalers) {
3133 seq_printf(m, "\tnum_scalers=%d, scaler_users=%x scaler_id=%d",
3134 num_scalers,
3135 pipe_config->scaler_state.scaler_users,
3136 pipe_config->scaler_state.scaler_id);
3137
3138 for (i = 0; i < SKL_NUM_SCALERS; i++) {
3139 struct intel_scaler *sc =
3140 &pipe_config->scaler_state.scalers[i];
3141
3142 seq_printf(m, ", scalers[%d]: use=%s, mode=%x",
3143 i, yesno(sc->in_use), sc->mode);
3144 }
3145 seq_puts(m, "\n");
3146 } else {
3147 seq_puts(m, "\tNo scalers available on this platform\n");
3148 }
3149 }
3150
3151 static int i915_display_info(struct seq_file *m, void *unused)
3152 {
3153 struct drm_info_node *node = m->private;
3154 struct drm_device *dev = node->minor->dev;
3155 struct drm_i915_private *dev_priv = dev->dev_private;
3156 struct intel_crtc *crtc;
3157 struct drm_connector *connector;
3158
3159 intel_runtime_pm_get(dev_priv);
3160 drm_modeset_lock_all(dev);
3161 seq_printf(m, "CRTC info\n");
3162 seq_printf(m, "---------\n");
3163 for_each_intel_crtc(dev, crtc) {
3164 bool active;
3165 struct intel_crtc_state *pipe_config;
3166 int x, y;
3167
3168 pipe_config = to_intel_crtc_state(crtc->base.state);
3169
3170 seq_printf(m, "CRTC %d: pipe: %c, active=%s, (size=%dx%d), dither=%s, bpp=%d\n",
3171 crtc->base.base.id, pipe_name(crtc->pipe),
3172 yesno(pipe_config->base.active),
3173 pipe_config->pipe_src_w, pipe_config->pipe_src_h,
3174 yesno(pipe_config->dither), pipe_config->pipe_bpp);
3175
3176 if (pipe_config->base.active) {
3177 intel_crtc_info(m, crtc);
3178
3179 active = cursor_position(dev, crtc->pipe, &x, &y);
3180 seq_printf(m, "\tcursor visible? %s, position (%d, %d), size %dx%d, addr 0x%08x, active? %s\n",
3181 yesno(crtc->cursor_base),
3182 x, y, crtc->base.cursor->state->crtc_w,
3183 crtc->base.cursor->state->crtc_h,
3184 crtc->cursor_addr, yesno(active));
3185 intel_scaler_info(m, crtc);
3186 intel_plane_info(m, crtc);
3187 }
3188
3189 seq_printf(m, "\tunderrun reporting: cpu=%s pch=%s \n",
3190 yesno(!crtc->cpu_fifo_underrun_disabled),
3191 yesno(!crtc->pch_fifo_underrun_disabled));
3192 }
3193
3194 seq_printf(m, "\n");
3195 seq_printf(m, "Connector info\n");
3196 seq_printf(m, "--------------\n");
3197 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3198 intel_connector_info(m, connector);
3199 }
3200 drm_modeset_unlock_all(dev);
3201 intel_runtime_pm_put(dev_priv);
3202
3203 return 0;
3204 }
3205
3206 static int i915_semaphore_status(struct seq_file *m, void *unused)
3207 {
3208 struct drm_info_node *node = (struct drm_info_node *) m->private;
3209 struct drm_device *dev = node->minor->dev;
3210 struct drm_i915_private *dev_priv = dev->dev_private;
3211 struct intel_engine_cs *engine;
3212 int num_rings = hweight32(INTEL_INFO(dev)->ring_mask);
3213 enum intel_engine_id id;
3214 int j, ret;
3215
3216 if (!i915_semaphore_is_enabled(dev_priv)) {
3217 seq_puts(m, "Semaphores are disabled\n");
3218 return 0;
3219 }
3220
3221 ret = mutex_lock_interruptible(&dev->struct_mutex);
3222 if (ret)
3223 return ret;
3224 intel_runtime_pm_get(dev_priv);
3225
3226 if (IS_BROADWELL(dev)) {
3227 struct page *page;
3228 uint64_t *seqno;
3229
3230 page = i915_gem_object_get_page(dev_priv->semaphore_obj, 0);
3231
3232 seqno = (uint64_t *)kmap_atomic(page);
3233 for_each_engine_id(engine, dev_priv, id) {
3234 uint64_t offset;
3235
3236 seq_printf(m, "%s\n", engine->name);
3237
3238 seq_puts(m, " Last signal:");
3239 for (j = 0; j < num_rings; j++) {
3240 offset = id * I915_NUM_ENGINES + j;
3241 seq_printf(m, "0x%08llx (0x%02llx) ",
3242 seqno[offset], offset * 8);
3243 }
3244 seq_putc(m, '\n');
3245
3246 seq_puts(m, " Last wait: ");
3247 for (j = 0; j < num_rings; j++) {
3248 offset = id + (j * I915_NUM_ENGINES);
3249 seq_printf(m, "0x%08llx (0x%02llx) ",
3250 seqno[offset], offset * 8);
3251 }
3252 seq_putc(m, '\n');
3253
3254 }
3255 kunmap_atomic(seqno);
3256 } else {
3257 seq_puts(m, " Last signal:");
3258 for_each_engine(engine, dev_priv)
3259 for (j = 0; j < num_rings; j++)
3260 seq_printf(m, "0x%08x\n",
3261 I915_READ(engine->semaphore.mbox.signal[j]));
3262 seq_putc(m, '\n');
3263 }
3264
3265 seq_puts(m, "\nSync seqno:\n");
3266 for_each_engine(engine, dev_priv) {
3267 for (j = 0; j < num_rings; j++)
3268 seq_printf(m, " 0x%08x ",
3269 engine->semaphore.sync_seqno[j]);
3270 seq_putc(m, '\n');
3271 }
3272 seq_putc(m, '\n');
3273
3274 intel_runtime_pm_put(dev_priv);
3275 mutex_unlock(&dev->struct_mutex);
3276 return 0;
3277 }
3278
3279 static int i915_shared_dplls_info(struct seq_file *m, void *unused)
3280 {
3281 struct drm_info_node *node = (struct drm_info_node *) m->private;
3282 struct drm_device *dev = node->minor->dev;
3283 struct drm_i915_private *dev_priv = dev->dev_private;
3284 int i;
3285
3286 drm_modeset_lock_all(dev);
3287 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
3288 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
3289
3290 seq_printf(m, "DPLL%i: %s, id: %i\n", i, pll->name, pll->id);
3291 seq_printf(m, " crtc_mask: 0x%08x, active: 0x%x, on: %s\n",
3292 pll->config.crtc_mask, pll->active_mask, yesno(pll->on));
3293 seq_printf(m, " tracked hardware state:\n");
3294 seq_printf(m, " dpll: 0x%08x\n", pll->config.hw_state.dpll);
3295 seq_printf(m, " dpll_md: 0x%08x\n",
3296 pll->config.hw_state.dpll_md);
3297 seq_printf(m, " fp0: 0x%08x\n", pll->config.hw_state.fp0);
3298 seq_printf(m, " fp1: 0x%08x\n", pll->config.hw_state.fp1);
3299 seq_printf(m, " wrpll: 0x%08x\n", pll->config.hw_state.wrpll);
3300 }
3301 drm_modeset_unlock_all(dev);
3302
3303 return 0;
3304 }
3305
3306 static int i915_wa_registers(struct seq_file *m, void *unused)
3307 {
3308 int i;
3309 int ret;
3310 struct intel_engine_cs *engine;
3311 struct drm_info_node *node = (struct drm_info_node *) m->private;
3312 struct drm_device *dev = node->minor->dev;
3313 struct drm_i915_private *dev_priv = dev->dev_private;
3314 struct i915_workarounds *workarounds = &dev_priv->workarounds;
3315 enum intel_engine_id id;
3316
3317 ret = mutex_lock_interruptible(&dev->struct_mutex);
3318 if (ret)
3319 return ret;
3320
3321 intel_runtime_pm_get(dev_priv);
3322
3323 seq_printf(m, "Workarounds applied: %d\n", workarounds->count);
3324 for_each_engine_id(engine, dev_priv, id)
3325 seq_printf(m, "HW whitelist count for %s: %d\n",
3326 engine->name, workarounds->hw_whitelist_count[id]);
3327 for (i = 0; i < workarounds->count; ++i) {
3328 i915_reg_t addr;
3329 u32 mask, value, read;
3330 bool ok;
3331
3332 addr = workarounds->reg[i].addr;
3333 mask = workarounds->reg[i].mask;
3334 value = workarounds->reg[i].value;
3335 read = I915_READ(addr);
3336 ok = (value & mask) == (read & mask);
3337 seq_printf(m, "0x%X: 0x%08X, mask: 0x%08X, read: 0x%08x, status: %s\n",
3338 i915_mmio_reg_offset(addr), value, mask, read, ok ? "OK" : "FAIL");
3339 }
3340
3341 intel_runtime_pm_put(dev_priv);
3342 mutex_unlock(&dev->struct_mutex);
3343
3344 return 0;
3345 }
3346
3347 static int i915_ddb_info(struct seq_file *m, void *unused)
3348 {
3349 struct drm_info_node *node = m->private;
3350 struct drm_device *dev = node->minor->dev;
3351 struct drm_i915_private *dev_priv = dev->dev_private;
3352 struct skl_ddb_allocation *ddb;
3353 struct skl_ddb_entry *entry;
3354 enum pipe pipe;
3355 int plane;
3356
3357 if (INTEL_INFO(dev)->gen < 9)
3358 return 0;
3359
3360 drm_modeset_lock_all(dev);
3361
3362 ddb = &dev_priv->wm.skl_hw.ddb;
3363
3364 seq_printf(m, "%-15s%8s%8s%8s\n", "", "Start", "End", "Size");
3365
3366 for_each_pipe(dev_priv, pipe) {
3367 seq_printf(m, "Pipe %c\n", pipe_name(pipe));
3368
3369 for_each_plane(dev_priv, pipe, plane) {
3370 entry = &ddb->plane[pipe][plane];
3371 seq_printf(m, " Plane%-8d%8u%8u%8u\n", plane + 1,
3372 entry->start, entry->end,
3373 skl_ddb_entry_size(entry));
3374 }
3375
3376 entry = &ddb->plane[pipe][PLANE_CURSOR];
3377 seq_printf(m, " %-13s%8u%8u%8u\n", "Cursor", entry->start,
3378 entry->end, skl_ddb_entry_size(entry));
3379 }
3380
3381 drm_modeset_unlock_all(dev);
3382
3383 return 0;
3384 }
3385
3386 static void drrs_status_per_crtc(struct seq_file *m,
3387 struct drm_device *dev, struct intel_crtc *intel_crtc)
3388 {
3389 struct drm_i915_private *dev_priv = dev->dev_private;
3390 struct i915_drrs *drrs = &dev_priv->drrs;
3391 int vrefresh = 0;
3392 struct drm_connector *connector;
3393
3394 drm_for_each_connector(connector, dev) {
3395 if (connector->state->crtc != &intel_crtc->base)
3396 continue;
3397
3398 seq_printf(m, "%s:\n", connector->name);
3399 }
3400
3401 if (dev_priv->vbt.drrs_type == STATIC_DRRS_SUPPORT)
3402 seq_puts(m, "\tVBT: DRRS_type: Static");
3403 else if (dev_priv->vbt.drrs_type == SEAMLESS_DRRS_SUPPORT)
3404 seq_puts(m, "\tVBT: DRRS_type: Seamless");
3405 else if (dev_priv->vbt.drrs_type == DRRS_NOT_SUPPORTED)
3406 seq_puts(m, "\tVBT: DRRS_type: None");
3407 else
3408 seq_puts(m, "\tVBT: DRRS_type: FIXME: Unrecognized Value");
3409
3410 seq_puts(m, "\n\n");
3411
3412 if (to_intel_crtc_state(intel_crtc->base.state)->has_drrs) {
3413 struct intel_panel *panel;
3414
3415 mutex_lock(&drrs->mutex);
3416 /* DRRS Supported */
3417 seq_puts(m, "\tDRRS Supported: Yes\n");
3418
3419 /* disable_drrs() will make drrs->dp NULL */
3420 if (!drrs->dp) {
3421 seq_puts(m, "Idleness DRRS: Disabled");
3422 mutex_unlock(&drrs->mutex);
3423 return;
3424 }
3425
3426 panel = &drrs->dp->attached_connector->panel;
3427 seq_printf(m, "\t\tBusy_frontbuffer_bits: 0x%X",
3428 drrs->busy_frontbuffer_bits);
3429
3430 seq_puts(m, "\n\t\t");
3431 if (drrs->refresh_rate_type == DRRS_HIGH_RR) {
3432 seq_puts(m, "DRRS_State: DRRS_HIGH_RR\n");
3433 vrefresh = panel->fixed_mode->vrefresh;
3434 } else if (drrs->refresh_rate_type == DRRS_LOW_RR) {
3435 seq_puts(m, "DRRS_State: DRRS_LOW_RR\n");
3436 vrefresh = panel->downclock_mode->vrefresh;
3437 } else {
3438 seq_printf(m, "DRRS_State: Unknown(%d)\n",
3439 drrs->refresh_rate_type);
3440 mutex_unlock(&drrs->mutex);
3441 return;
3442 }
3443 seq_printf(m, "\t\tVrefresh: %d", vrefresh);
3444
3445 seq_puts(m, "\n\t\t");
3446 mutex_unlock(&drrs->mutex);
3447 } else {
3448 /* DRRS not supported. Print the VBT parameter*/
3449 seq_puts(m, "\tDRRS Supported : No");
3450 }
3451 seq_puts(m, "\n");
3452 }
3453
3454 static int i915_drrs_status(struct seq_file *m, void *unused)
3455 {
3456 struct drm_info_node *node = m->private;
3457 struct drm_device *dev = node->minor->dev;
3458 struct intel_crtc *intel_crtc;
3459 int active_crtc_cnt = 0;
3460
3461 drm_modeset_lock_all(dev);
3462 for_each_intel_crtc(dev, intel_crtc) {
3463 if (intel_crtc->base.state->active) {
3464 active_crtc_cnt++;
3465 seq_printf(m, "\nCRTC %d: ", active_crtc_cnt);
3466
3467 drrs_status_per_crtc(m, dev, intel_crtc);
3468 }
3469 }
3470 drm_modeset_unlock_all(dev);
3471
3472 if (!active_crtc_cnt)
3473 seq_puts(m, "No active crtc found\n");
3474
3475 return 0;
3476 }
3477
3478 struct pipe_crc_info {
3479 const char *name;
3480 struct drm_device *dev;
3481 enum pipe pipe;
3482 };
3483
3484 static int i915_dp_mst_info(struct seq_file *m, void *unused)
3485 {
3486 struct drm_info_node *node = (struct drm_info_node *) m->private;
3487 struct drm_device *dev = node->minor->dev;
3488 struct intel_encoder *intel_encoder;
3489 struct intel_digital_port *intel_dig_port;
3490 struct drm_connector *connector;
3491
3492 drm_modeset_lock_all(dev);
3493 drm_for_each_connector(connector, dev) {
3494 if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
3495 continue;
3496
3497 intel_encoder = intel_attached_encoder(connector);
3498 if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
3499 continue;
3500
3501 intel_dig_port = enc_to_dig_port(&intel_encoder->base);
3502 if (!intel_dig_port->dp.can_mst)
3503 continue;
3504
3505 seq_printf(m, "MST Source Port %c\n",
3506 port_name(intel_dig_port->port));
3507 drm_dp_mst_dump_topology(m, &intel_dig_port->dp.mst_mgr);
3508 }
3509 drm_modeset_unlock_all(dev);
3510 return 0;
3511 }
3512
3513 static int i915_pipe_crc_open(struct inode *inode, struct file *filep)
3514 {
3515 struct pipe_crc_info *info = inode->i_private;
3516 struct drm_i915_private *dev_priv = info->dev->dev_private;
3517 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
3518
3519 if (info->pipe >= INTEL_INFO(info->dev)->num_pipes)
3520 return -ENODEV;
3521
3522 spin_lock_irq(&pipe_crc->lock);
3523
3524 if (pipe_crc->opened) {
3525 spin_unlock_irq(&pipe_crc->lock);
3526 return -EBUSY; /* already open */
3527 }
3528
3529 pipe_crc->opened = true;
3530 filep->private_data = inode->i_private;
3531
3532 spin_unlock_irq(&pipe_crc->lock);
3533
3534 return 0;
3535 }
3536
3537 static int i915_pipe_crc_release(struct inode *inode, struct file *filep)
3538 {
3539 struct pipe_crc_info *info = inode->i_private;
3540 struct drm_i915_private *dev_priv = info->dev->dev_private;
3541 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
3542
3543 spin_lock_irq(&pipe_crc->lock);
3544 pipe_crc->opened = false;
3545 spin_unlock_irq(&pipe_crc->lock);
3546
3547 return 0;
3548 }
3549
3550 /* (6 fields, 8 chars each, space separated (5) + '\n') */
3551 #define PIPE_CRC_LINE_LEN (6 * 8 + 5 + 1)
3552 /* account for \'0' */
3553 #define PIPE_CRC_BUFFER_LEN (PIPE_CRC_LINE_LEN + 1)
3554
3555 static int pipe_crc_data_count(struct intel_pipe_crc *pipe_crc)
3556 {
3557 assert_spin_locked(&pipe_crc->lock);
3558 return CIRC_CNT(pipe_crc->head, pipe_crc->tail,
3559 INTEL_PIPE_CRC_ENTRIES_NR);
3560 }
3561
3562 static ssize_t
3563 i915_pipe_crc_read(struct file *filep, char __user *user_buf, size_t count,
3564 loff_t *pos)
3565 {
3566 struct pipe_crc_info *info = filep->private_data;
3567 struct drm_device *dev = info->dev;
3568 struct drm_i915_private *dev_priv = dev->dev_private;
3569 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
3570 char buf[PIPE_CRC_BUFFER_LEN];
3571 int n_entries;
3572 ssize_t bytes_read;
3573
3574 /*
3575 * Don't allow user space to provide buffers not big enough to hold
3576 * a line of data.
3577 */
3578 if (count < PIPE_CRC_LINE_LEN)
3579 return -EINVAL;
3580
3581 if (pipe_crc->source == INTEL_PIPE_CRC_SOURCE_NONE)
3582 return 0;
3583
3584 /* nothing to read */
3585 spin_lock_irq(&pipe_crc->lock);
3586 while (pipe_crc_data_count(pipe_crc) == 0) {
3587 int ret;
3588
3589 if (filep->f_flags & O_NONBLOCK) {
3590 spin_unlock_irq(&pipe_crc->lock);
3591 return -EAGAIN;
3592 }
3593
3594 ret = wait_event_interruptible_lock_irq(pipe_crc->wq,
3595 pipe_crc_data_count(pipe_crc), pipe_crc->lock);
3596 if (ret) {
3597 spin_unlock_irq(&pipe_crc->lock);
3598 return ret;
3599 }
3600 }
3601
3602 /* We now have one or more entries to read */
3603 n_entries = count / PIPE_CRC_LINE_LEN;
3604
3605 bytes_read = 0;
3606 while (n_entries > 0) {
3607 struct intel_pipe_crc_entry *entry =
3608 &pipe_crc->entries[pipe_crc->tail];
3609 int ret;
3610
3611 if (CIRC_CNT(pipe_crc->head, pipe_crc->tail,
3612 INTEL_PIPE_CRC_ENTRIES_NR) < 1)
3613 break;
3614
3615 BUILD_BUG_ON_NOT_POWER_OF_2(INTEL_PIPE_CRC_ENTRIES_NR);
3616 pipe_crc->tail = (pipe_crc->tail + 1) & (INTEL_PIPE_CRC_ENTRIES_NR - 1);
3617
3618 bytes_read += snprintf(buf, PIPE_CRC_BUFFER_LEN,
3619 "%8u %8x %8x %8x %8x %8x\n",
3620 entry->frame, entry->crc[0],
3621 entry->crc[1], entry->crc[2],
3622 entry->crc[3], entry->crc[4]);
3623
3624 spin_unlock_irq(&pipe_crc->lock);
3625
3626 ret = copy_to_user(user_buf, buf, PIPE_CRC_LINE_LEN);
3627 if (ret == PIPE_CRC_LINE_LEN)
3628 return -EFAULT;
3629
3630 user_buf += PIPE_CRC_LINE_LEN;
3631 n_entries--;
3632
3633 spin_lock_irq(&pipe_crc->lock);
3634 }
3635
3636 spin_unlock_irq(&pipe_crc->lock);
3637
3638 return bytes_read;
3639 }
3640
3641 static const struct file_operations i915_pipe_crc_fops = {
3642 .owner = THIS_MODULE,
3643 .open = i915_pipe_crc_open,
3644 .read = i915_pipe_crc_read,
3645 .release = i915_pipe_crc_release,
3646 };
3647
3648 static struct pipe_crc_info i915_pipe_crc_data[I915_MAX_PIPES] = {
3649 {
3650 .name = "i915_pipe_A_crc",
3651 .pipe = PIPE_A,
3652 },
3653 {
3654 .name = "i915_pipe_B_crc",
3655 .pipe = PIPE_B,
3656 },
3657 {
3658 .name = "i915_pipe_C_crc",
3659 .pipe = PIPE_C,
3660 },
3661 };
3662
3663 static int i915_pipe_crc_create(struct dentry *root, struct drm_minor *minor,
3664 enum pipe pipe)
3665 {
3666 struct drm_device *dev = minor->dev;
3667 struct dentry *ent;
3668 struct pipe_crc_info *info = &i915_pipe_crc_data[pipe];
3669
3670 info->dev = dev;
3671 ent = debugfs_create_file(info->name, S_IRUGO, root, info,
3672 &i915_pipe_crc_fops);
3673 if (!ent)
3674 return -ENOMEM;
3675
3676 return drm_add_fake_info_node(minor, ent, info);
3677 }
3678
3679 static const char * const pipe_crc_sources[] = {
3680 "none",
3681 "plane1",
3682 "plane2",
3683 "pf",
3684 "pipe",
3685 "TV",
3686 "DP-B",
3687 "DP-C",
3688 "DP-D",
3689 "auto",
3690 };
3691
3692 static const char *pipe_crc_source_name(enum intel_pipe_crc_source source)
3693 {
3694 BUILD_BUG_ON(ARRAY_SIZE(pipe_crc_sources) != INTEL_PIPE_CRC_SOURCE_MAX);
3695 return pipe_crc_sources[source];
3696 }
3697
3698 static int display_crc_ctl_show(struct seq_file *m, void *data)
3699 {
3700 struct drm_device *dev = m->private;
3701 struct drm_i915_private *dev_priv = dev->dev_private;
3702 int i;
3703
3704 for (i = 0; i < I915_MAX_PIPES; i++)
3705 seq_printf(m, "%c %s\n", pipe_name(i),
3706 pipe_crc_source_name(dev_priv->pipe_crc[i].source));
3707
3708 return 0;
3709 }
3710
3711 static int display_crc_ctl_open(struct inode *inode, struct file *file)
3712 {
3713 struct drm_device *dev = inode->i_private;
3714
3715 return single_open(file, display_crc_ctl_show, dev);
3716 }
3717
3718 static int i8xx_pipe_crc_ctl_reg(enum intel_pipe_crc_source *source,
3719 uint32_t *val)
3720 {
3721 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
3722 *source = INTEL_PIPE_CRC_SOURCE_PIPE;
3723
3724 switch (*source) {
3725 case INTEL_PIPE_CRC_SOURCE_PIPE:
3726 *val = PIPE_CRC_ENABLE | PIPE_CRC_INCLUDE_BORDER_I8XX;
3727 break;
3728 case INTEL_PIPE_CRC_SOURCE_NONE:
3729 *val = 0;
3730 break;
3731 default:
3732 return -EINVAL;
3733 }
3734
3735 return 0;
3736 }
3737
3738 static int i9xx_pipe_crc_auto_source(struct drm_device *dev, enum pipe pipe,
3739 enum intel_pipe_crc_source *source)
3740 {
3741 struct intel_encoder *encoder;
3742 struct intel_crtc *crtc;
3743 struct intel_digital_port *dig_port;
3744 int ret = 0;
3745
3746 *source = INTEL_PIPE_CRC_SOURCE_PIPE;
3747
3748 drm_modeset_lock_all(dev);
3749 for_each_intel_encoder(dev, encoder) {
3750 if (!encoder->base.crtc)
3751 continue;
3752
3753 crtc = to_intel_crtc(encoder->base.crtc);
3754
3755 if (crtc->pipe != pipe)
3756 continue;
3757
3758 switch (encoder->type) {
3759 case INTEL_OUTPUT_TVOUT:
3760 *source = INTEL_PIPE_CRC_SOURCE_TV;
3761 break;
3762 case INTEL_OUTPUT_DISPLAYPORT:
3763 case INTEL_OUTPUT_EDP:
3764 dig_port = enc_to_dig_port(&encoder->base);
3765 switch (dig_port->port) {
3766 case PORT_B:
3767 *source = INTEL_PIPE_CRC_SOURCE_DP_B;
3768 break;
3769 case PORT_C:
3770 *source = INTEL_PIPE_CRC_SOURCE_DP_C;
3771 break;
3772 case PORT_D:
3773 *source = INTEL_PIPE_CRC_SOURCE_DP_D;
3774 break;
3775 default:
3776 WARN(1, "nonexisting DP port %c\n",
3777 port_name(dig_port->port));
3778 break;
3779 }
3780 break;
3781 default:
3782 break;
3783 }
3784 }
3785 drm_modeset_unlock_all(dev);
3786
3787 return ret;
3788 }
3789
3790 static int vlv_pipe_crc_ctl_reg(struct drm_device *dev,
3791 enum pipe pipe,
3792 enum intel_pipe_crc_source *source,
3793 uint32_t *val)
3794 {
3795 struct drm_i915_private *dev_priv = dev->dev_private;
3796 bool need_stable_symbols = false;
3797
3798 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO) {
3799 int ret = i9xx_pipe_crc_auto_source(dev, pipe, source);
3800 if (ret)
3801 return ret;
3802 }
3803
3804 switch (*source) {
3805 case INTEL_PIPE_CRC_SOURCE_PIPE:
3806 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_VLV;
3807 break;
3808 case INTEL_PIPE_CRC_SOURCE_DP_B:
3809 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_B_VLV;
3810 need_stable_symbols = true;
3811 break;
3812 case INTEL_PIPE_CRC_SOURCE_DP_C:
3813 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_C_VLV;
3814 need_stable_symbols = true;
3815 break;
3816 case INTEL_PIPE_CRC_SOURCE_DP_D:
3817 if (!IS_CHERRYVIEW(dev))
3818 return -EINVAL;
3819 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_D_VLV;
3820 need_stable_symbols = true;
3821 break;
3822 case INTEL_PIPE_CRC_SOURCE_NONE:
3823 *val = 0;
3824 break;
3825 default:
3826 return -EINVAL;
3827 }
3828
3829 /*
3830 * When the pipe CRC tap point is after the transcoders we need
3831 * to tweak symbol-level features to produce a deterministic series of
3832 * symbols for a given frame. We need to reset those features only once
3833 * a frame (instead of every nth symbol):
3834 * - DC-balance: used to ensure a better clock recovery from the data
3835 * link (SDVO)
3836 * - DisplayPort scrambling: used for EMI reduction
3837 */
3838 if (need_stable_symbols) {
3839 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
3840
3841 tmp |= DC_BALANCE_RESET_VLV;
3842 switch (pipe) {
3843 case PIPE_A:
3844 tmp |= PIPE_A_SCRAMBLE_RESET;
3845 break;
3846 case PIPE_B:
3847 tmp |= PIPE_B_SCRAMBLE_RESET;
3848 break;
3849 case PIPE_C:
3850 tmp |= PIPE_C_SCRAMBLE_RESET;
3851 break;
3852 default:
3853 return -EINVAL;
3854 }
3855 I915_WRITE(PORT_DFT2_G4X, tmp);
3856 }
3857
3858 return 0;
3859 }
3860
3861 static int i9xx_pipe_crc_ctl_reg(struct drm_device *dev,
3862 enum pipe pipe,
3863 enum intel_pipe_crc_source *source,
3864 uint32_t *val)
3865 {
3866 struct drm_i915_private *dev_priv = dev->dev_private;
3867 bool need_stable_symbols = false;
3868
3869 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO) {
3870 int ret = i9xx_pipe_crc_auto_source(dev, pipe, source);
3871 if (ret)
3872 return ret;
3873 }
3874
3875 switch (*source) {
3876 case INTEL_PIPE_CRC_SOURCE_PIPE:
3877 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_I9XX;
3878 break;
3879 case INTEL_PIPE_CRC_SOURCE_TV:
3880 if (!SUPPORTS_TV(dev))
3881 return -EINVAL;
3882 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_TV_PRE;
3883 break;
3884 case INTEL_PIPE_CRC_SOURCE_DP_B:
3885 if (!IS_G4X(dev))
3886 return -EINVAL;
3887 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_B_G4X;
3888 need_stable_symbols = true;
3889 break;
3890 case INTEL_PIPE_CRC_SOURCE_DP_C:
3891 if (!IS_G4X(dev))
3892 return -EINVAL;
3893 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_C_G4X;
3894 need_stable_symbols = true;
3895 break;
3896 case INTEL_PIPE_CRC_SOURCE_DP_D:
3897 if (!IS_G4X(dev))
3898 return -EINVAL;
3899 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_D_G4X;
3900 need_stable_symbols = true;
3901 break;
3902 case INTEL_PIPE_CRC_SOURCE_NONE:
3903 *val = 0;
3904 break;
3905 default:
3906 return -EINVAL;
3907 }
3908
3909 /*
3910 * When the pipe CRC tap point is after the transcoders we need
3911 * to tweak symbol-level features to produce a deterministic series of
3912 * symbols for a given frame. We need to reset those features only once
3913 * a frame (instead of every nth symbol):
3914 * - DC-balance: used to ensure a better clock recovery from the data
3915 * link (SDVO)
3916 * - DisplayPort scrambling: used for EMI reduction
3917 */
3918 if (need_stable_symbols) {
3919 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
3920
3921 WARN_ON(!IS_G4X(dev));
3922
3923 I915_WRITE(PORT_DFT_I9XX,
3924 I915_READ(PORT_DFT_I9XX) | DC_BALANCE_RESET);
3925
3926 if (pipe == PIPE_A)
3927 tmp |= PIPE_A_SCRAMBLE_RESET;
3928 else
3929 tmp |= PIPE_B_SCRAMBLE_RESET;
3930
3931 I915_WRITE(PORT_DFT2_G4X, tmp);
3932 }
3933
3934 return 0;
3935 }
3936
3937 static void vlv_undo_pipe_scramble_reset(struct drm_device *dev,
3938 enum pipe pipe)
3939 {
3940 struct drm_i915_private *dev_priv = dev->dev_private;
3941 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
3942
3943 switch (pipe) {
3944 case PIPE_A:
3945 tmp &= ~PIPE_A_SCRAMBLE_RESET;
3946 break;
3947 case PIPE_B:
3948 tmp &= ~PIPE_B_SCRAMBLE_RESET;
3949 break;
3950 case PIPE_C:
3951 tmp &= ~PIPE_C_SCRAMBLE_RESET;
3952 break;
3953 default:
3954 return;
3955 }
3956 if (!(tmp & PIPE_SCRAMBLE_RESET_MASK))
3957 tmp &= ~DC_BALANCE_RESET_VLV;
3958 I915_WRITE(PORT_DFT2_G4X, tmp);
3959
3960 }
3961
3962 static void g4x_undo_pipe_scramble_reset(struct drm_device *dev,
3963 enum pipe pipe)
3964 {
3965 struct drm_i915_private *dev_priv = dev->dev_private;
3966 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
3967
3968 if (pipe == PIPE_A)
3969 tmp &= ~PIPE_A_SCRAMBLE_RESET;
3970 else
3971 tmp &= ~PIPE_B_SCRAMBLE_RESET;
3972 I915_WRITE(PORT_DFT2_G4X, tmp);
3973
3974 if (!(tmp & PIPE_SCRAMBLE_RESET_MASK)) {
3975 I915_WRITE(PORT_DFT_I9XX,
3976 I915_READ(PORT_DFT_I9XX) & ~DC_BALANCE_RESET);
3977 }
3978 }
3979
3980 static int ilk_pipe_crc_ctl_reg(enum intel_pipe_crc_source *source,
3981 uint32_t *val)
3982 {
3983 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
3984 *source = INTEL_PIPE_CRC_SOURCE_PIPE;
3985
3986 switch (*source) {
3987 case INTEL_PIPE_CRC_SOURCE_PLANE1:
3988 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_ILK;
3989 break;
3990 case INTEL_PIPE_CRC_SOURCE_PLANE2:
3991 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_ILK;
3992 break;
3993 case INTEL_PIPE_CRC_SOURCE_PIPE:
3994 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_ILK;
3995 break;
3996 case INTEL_PIPE_CRC_SOURCE_NONE:
3997 *val = 0;
3998 break;
3999 default:
4000 return -EINVAL;
4001 }
4002
4003 return 0;
4004 }
4005
4006 static void hsw_trans_edp_pipe_A_crc_wa(struct drm_device *dev, bool enable)
4007 {
4008 struct drm_i915_private *dev_priv = dev->dev_private;
4009 struct intel_crtc *crtc =
4010 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_A]);
4011 struct intel_crtc_state *pipe_config;
4012 struct drm_atomic_state *state;
4013 int ret = 0;
4014
4015 drm_modeset_lock_all(dev);
4016 state = drm_atomic_state_alloc(dev);
4017 if (!state) {
4018 ret = -ENOMEM;
4019 goto out;
4020 }
4021
4022 state->acquire_ctx = drm_modeset_legacy_acquire_ctx(&crtc->base);
4023 pipe_config = intel_atomic_get_crtc_state(state, crtc);
4024 if (IS_ERR(pipe_config)) {
4025 ret = PTR_ERR(pipe_config);
4026 goto out;
4027 }
4028
4029 pipe_config->pch_pfit.force_thru = enable;
4030 if (pipe_config->cpu_transcoder == TRANSCODER_EDP &&
4031 pipe_config->pch_pfit.enabled != enable)
4032 pipe_config->base.connectors_changed = true;
4033
4034 ret = drm_atomic_commit(state);
4035 out:
4036 drm_modeset_unlock_all(dev);
4037 WARN(ret, "Toggling workaround to %i returns %i\n", enable, ret);
4038 if (ret)
4039 drm_atomic_state_free(state);
4040 }
4041
4042 static int ivb_pipe_crc_ctl_reg(struct drm_device *dev,
4043 enum pipe pipe,
4044 enum intel_pipe_crc_source *source,
4045 uint32_t *val)
4046 {
4047 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
4048 *source = INTEL_PIPE_CRC_SOURCE_PF;
4049
4050 switch (*source) {
4051 case INTEL_PIPE_CRC_SOURCE_PLANE1:
4052 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_IVB;
4053 break;
4054 case INTEL_PIPE_CRC_SOURCE_PLANE2:
4055 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_IVB;
4056 break;
4057 case INTEL_PIPE_CRC_SOURCE_PF:
4058 if (IS_HASWELL(dev) && pipe == PIPE_A)
4059 hsw_trans_edp_pipe_A_crc_wa(dev, true);
4060
4061 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PF_IVB;
4062 break;
4063 case INTEL_PIPE_CRC_SOURCE_NONE:
4064 *val = 0;
4065 break;
4066 default:
4067 return -EINVAL;
4068 }
4069
4070 return 0;
4071 }
4072
4073 static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe,
4074 enum intel_pipe_crc_source source)
4075 {
4076 struct drm_i915_private *dev_priv = dev->dev_private;
4077 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];
4078 struct intel_crtc *crtc = to_intel_crtc(intel_get_crtc_for_pipe(dev,
4079 pipe));
4080 enum intel_display_power_domain power_domain;
4081 u32 val = 0; /* shut up gcc */
4082 int ret;
4083
4084 if (pipe_crc->source == source)
4085 return 0;
4086
4087 /* forbid changing the source without going back to 'none' */
4088 if (pipe_crc->source && source)
4089 return -EINVAL;
4090
4091 power_domain = POWER_DOMAIN_PIPE(pipe);
4092 if (!intel_display_power_get_if_enabled(dev_priv, power_domain)) {
4093 DRM_DEBUG_KMS("Trying to capture CRC while pipe is off\n");
4094 return -EIO;
4095 }
4096
4097 if (IS_GEN2(dev))
4098 ret = i8xx_pipe_crc_ctl_reg(&source, &val);
4099 else if (INTEL_INFO(dev)->gen < 5)
4100 ret = i9xx_pipe_crc_ctl_reg(dev, pipe, &source, &val);
4101 else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
4102 ret = vlv_pipe_crc_ctl_reg(dev, pipe, &source, &val);
4103 else if (IS_GEN5(dev) || IS_GEN6(dev))
4104 ret = ilk_pipe_crc_ctl_reg(&source, &val);
4105 else
4106 ret = ivb_pipe_crc_ctl_reg(dev, pipe, &source, &val);
4107
4108 if (ret != 0)
4109 goto out;
4110
4111 /* none -> real source transition */
4112 if (source) {
4113 struct intel_pipe_crc_entry *entries;
4114
4115 DRM_DEBUG_DRIVER("collecting CRCs for pipe %c, %s\n",
4116 pipe_name(pipe), pipe_crc_source_name(source));
4117
4118 entries = kcalloc(INTEL_PIPE_CRC_ENTRIES_NR,
4119 sizeof(pipe_crc->entries[0]),
4120 GFP_KERNEL);
4121 if (!entries) {
4122 ret = -ENOMEM;
4123 goto out;
4124 }
4125
4126 /*
4127 * When IPS gets enabled, the pipe CRC changes. Since IPS gets
4128 * enabled and disabled dynamically based on package C states,
4129 * user space can't make reliable use of the CRCs, so let's just
4130 * completely disable it.
4131 */
4132 hsw_disable_ips(crtc);
4133
4134 spin_lock_irq(&pipe_crc->lock);
4135 kfree(pipe_crc->entries);
4136 pipe_crc->entries = entries;
4137 pipe_crc->head = 0;
4138 pipe_crc->tail = 0;
4139 spin_unlock_irq(&pipe_crc->lock);
4140 }
4141
4142 pipe_crc->source = source;
4143
4144 I915_WRITE(PIPE_CRC_CTL(pipe), val);
4145 POSTING_READ(PIPE_CRC_CTL(pipe));
4146
4147 /* real source -> none transition */
4148 if (source == INTEL_PIPE_CRC_SOURCE_NONE) {
4149 struct intel_pipe_crc_entry *entries;
4150 struct intel_crtc *crtc =
4151 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
4152
4153 DRM_DEBUG_DRIVER("stopping CRCs for pipe %c\n",
4154 pipe_name(pipe));
4155
4156 drm_modeset_lock(&crtc->base.mutex, NULL);
4157 if (crtc->base.state->active)
4158 intel_wait_for_vblank(dev, pipe);
4159 drm_modeset_unlock(&crtc->base.mutex);
4160
4161 spin_lock_irq(&pipe_crc->lock);
4162 entries = pipe_crc->entries;
4163 pipe_crc->entries = NULL;
4164 pipe_crc->head = 0;
4165 pipe_crc->tail = 0;
4166 spin_unlock_irq(&pipe_crc->lock);
4167
4168 kfree(entries);
4169
4170 if (IS_G4X(dev))
4171 g4x_undo_pipe_scramble_reset(dev, pipe);
4172 else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
4173 vlv_undo_pipe_scramble_reset(dev, pipe);
4174 else if (IS_HASWELL(dev) && pipe == PIPE_A)
4175 hsw_trans_edp_pipe_A_crc_wa(dev, false);
4176
4177 hsw_enable_ips(crtc);
4178 }
4179
4180 ret = 0;
4181
4182 out:
4183 intel_display_power_put(dev_priv, power_domain);
4184
4185 return ret;
4186 }
4187
4188 /*
4189 * Parse pipe CRC command strings:
4190 * command: wsp* object wsp+ name wsp+ source wsp*
4191 * object: 'pipe'
4192 * name: (A | B | C)
4193 * source: (none | plane1 | plane2 | pf)
4194 * wsp: (#0x20 | #0x9 | #0xA)+
4195 *
4196 * eg.:
4197 * "pipe A plane1" -> Start CRC computations on plane1 of pipe A
4198 * "pipe A none" -> Stop CRC
4199 */
4200 static int display_crc_ctl_tokenize(char *buf, char *words[], int max_words)
4201 {
4202 int n_words = 0;
4203
4204 while (*buf) {
4205 char *end;
4206
4207 /* skip leading white space */
4208 buf = skip_spaces(buf);
4209 if (!*buf)
4210 break; /* end of buffer */
4211
4212 /* find end of word */
4213 for (end = buf; *end && !isspace(*end); end++)
4214 ;
4215
4216 if (n_words == max_words) {
4217 DRM_DEBUG_DRIVER("too many words, allowed <= %d\n",
4218 max_words);
4219 return -EINVAL; /* ran out of words[] before bytes */
4220 }
4221
4222 if (*end)
4223 *end++ = '\0';
4224 words[n_words++] = buf;
4225 buf = end;
4226 }
4227
4228 return n_words;
4229 }
4230
4231 enum intel_pipe_crc_object {
4232 PIPE_CRC_OBJECT_PIPE,
4233 };
4234
4235 static const char * const pipe_crc_objects[] = {
4236 "pipe",
4237 };
4238
4239 static int
4240 display_crc_ctl_parse_object(const char *buf, enum intel_pipe_crc_object *o)
4241 {
4242 int i;
4243
4244 for (i = 0; i < ARRAY_SIZE(pipe_crc_objects); i++)
4245 if (!strcmp(buf, pipe_crc_objects[i])) {
4246 *o = i;
4247 return 0;
4248 }
4249
4250 return -EINVAL;
4251 }
4252
4253 static int display_crc_ctl_parse_pipe(const char *buf, enum pipe *pipe)
4254 {
4255 const char name = buf[0];
4256
4257 if (name < 'A' || name >= pipe_name(I915_MAX_PIPES))
4258 return -EINVAL;
4259
4260 *pipe = name - 'A';
4261
4262 return 0;
4263 }
4264
4265 static int
4266 display_crc_ctl_parse_source(const char *buf, enum intel_pipe_crc_source *s)
4267 {
4268 int i;
4269
4270 for (i = 0; i < ARRAY_SIZE(pipe_crc_sources); i++)
4271 if (!strcmp(buf, pipe_crc_sources[i])) {
4272 *s = i;
4273 return 0;
4274 }
4275
4276 return -EINVAL;
4277 }
4278
4279 static int display_crc_ctl_parse(struct drm_device *dev, char *buf, size_t len)
4280 {
4281 #define N_WORDS 3
4282 int n_words;
4283 char *words[N_WORDS];
4284 enum pipe pipe;
4285 enum intel_pipe_crc_object object;
4286 enum intel_pipe_crc_source source;
4287
4288 n_words = display_crc_ctl_tokenize(buf, words, N_WORDS);
4289 if (n_words != N_WORDS) {
4290 DRM_DEBUG_DRIVER("tokenize failed, a command is %d words\n",
4291 N_WORDS);
4292 return -EINVAL;
4293 }
4294
4295 if (display_crc_ctl_parse_object(words[0], &object) < 0) {
4296 DRM_DEBUG_DRIVER("unknown object %s\n", words[0]);
4297 return -EINVAL;
4298 }
4299
4300 if (display_crc_ctl_parse_pipe(words[1], &pipe) < 0) {
4301 DRM_DEBUG_DRIVER("unknown pipe %s\n", words[1]);
4302 return -EINVAL;
4303 }
4304
4305 if (display_crc_ctl_parse_source(words[2], &source) < 0) {
4306 DRM_DEBUG_DRIVER("unknown source %s\n", words[2]);
4307 return -EINVAL;
4308 }
4309
4310 return pipe_crc_set_source(dev, pipe, source);
4311 }
4312
4313 static ssize_t display_crc_ctl_write(struct file *file, const char __user *ubuf,
4314 size_t len, loff_t *offp)
4315 {
4316 struct seq_file *m = file->private_data;
4317 struct drm_device *dev = m->private;
4318 char *tmpbuf;
4319 int ret;
4320
4321 if (len == 0)
4322 return 0;
4323
4324 if (len > PAGE_SIZE - 1) {
4325 DRM_DEBUG_DRIVER("expected <%lu bytes into pipe crc control\n",
4326 PAGE_SIZE);
4327 return -E2BIG;
4328 }
4329
4330 tmpbuf = kmalloc(len + 1, GFP_KERNEL);
4331 if (!tmpbuf)
4332 return -ENOMEM;
4333
4334 if (copy_from_user(tmpbuf, ubuf, len)) {
4335 ret = -EFAULT;
4336 goto out;
4337 }
4338 tmpbuf[len] = '\0';
4339
4340 ret = display_crc_ctl_parse(dev, tmpbuf, len);
4341
4342 out:
4343 kfree(tmpbuf);
4344 if (ret < 0)
4345 return ret;
4346
4347 *offp += len;
4348 return len;
4349 }
4350
4351 static const struct file_operations i915_display_crc_ctl_fops = {
4352 .owner = THIS_MODULE,
4353 .open = display_crc_ctl_open,
4354 .read = seq_read,
4355 .llseek = seq_lseek,
4356 .release = single_release,
4357 .write = display_crc_ctl_write
4358 };
4359
4360 static ssize_t i915_displayport_test_active_write(struct file *file,
4361 const char __user *ubuf,
4362 size_t len, loff_t *offp)
4363 {
4364 char *input_buffer;
4365 int status = 0;
4366 struct drm_device *dev;
4367 struct drm_connector *connector;
4368 struct list_head *connector_list;
4369 struct intel_dp *intel_dp;
4370 int val = 0;
4371
4372 dev = ((struct seq_file *)file->private_data)->private;
4373
4374 connector_list = &dev->mode_config.connector_list;
4375
4376 if (len == 0)
4377 return 0;
4378
4379 input_buffer = kmalloc(len + 1, GFP_KERNEL);
4380 if (!input_buffer)
4381 return -ENOMEM;
4382
4383 if (copy_from_user(input_buffer, ubuf, len)) {
4384 status = -EFAULT;
4385 goto out;
4386 }
4387
4388 input_buffer[len] = '\0';
4389 DRM_DEBUG_DRIVER("Copied %d bytes from user\n", (unsigned int)len);
4390
4391 list_for_each_entry(connector, connector_list, head) {
4392
4393 if (connector->connector_type !=
4394 DRM_MODE_CONNECTOR_DisplayPort)
4395 continue;
4396
4397 if (connector->status == connector_status_connected &&
4398 connector->encoder != NULL) {
4399 intel_dp = enc_to_intel_dp(connector->encoder);
4400 status = kstrtoint(input_buffer, 10, &val);
4401 if (status < 0)
4402 goto out;
4403 DRM_DEBUG_DRIVER("Got %d for test active\n", val);
4404 /* To prevent erroneous activation of the compliance
4405 * testing code, only accept an actual value of 1 here
4406 */
4407 if (val == 1)
4408 intel_dp->compliance_test_active = 1;
4409 else
4410 intel_dp->compliance_test_active = 0;
4411 }
4412 }
4413 out:
4414 kfree(input_buffer);
4415 if (status < 0)
4416 return status;
4417
4418 *offp += len;
4419 return len;
4420 }
4421
4422 static int i915_displayport_test_active_show(struct seq_file *m, void *data)
4423 {
4424 struct drm_device *dev = m->private;
4425 struct drm_connector *connector;
4426 struct list_head *connector_list = &dev->mode_config.connector_list;
4427 struct intel_dp *intel_dp;
4428
4429 list_for_each_entry(connector, connector_list, head) {
4430
4431 if (connector->connector_type !=
4432 DRM_MODE_CONNECTOR_DisplayPort)
4433 continue;
4434
4435 if (connector->status == connector_status_connected &&
4436 connector->encoder != NULL) {
4437 intel_dp = enc_to_intel_dp(connector->encoder);
4438 if (intel_dp->compliance_test_active)
4439 seq_puts(m, "1");
4440 else
4441 seq_puts(m, "0");
4442 } else
4443 seq_puts(m, "0");
4444 }
4445
4446 return 0;
4447 }
4448
4449 static int i915_displayport_test_active_open(struct inode *inode,
4450 struct file *file)
4451 {
4452 struct drm_device *dev = inode->i_private;
4453
4454 return single_open(file, i915_displayport_test_active_show, dev);
4455 }
4456
4457 static const struct file_operations i915_displayport_test_active_fops = {
4458 .owner = THIS_MODULE,
4459 .open = i915_displayport_test_active_open,
4460 .read = seq_read,
4461 .llseek = seq_lseek,
4462 .release = single_release,
4463 .write = i915_displayport_test_active_write
4464 };
4465
4466 static int i915_displayport_test_data_show(struct seq_file *m, void *data)
4467 {
4468 struct drm_device *dev = m->private;
4469 struct drm_connector *connector;
4470 struct list_head *connector_list = &dev->mode_config.connector_list;
4471 struct intel_dp *intel_dp;
4472
4473 list_for_each_entry(connector, connector_list, head) {
4474
4475 if (connector->connector_type !=
4476 DRM_MODE_CONNECTOR_DisplayPort)
4477 continue;
4478
4479 if (connector->status == connector_status_connected &&
4480 connector->encoder != NULL) {
4481 intel_dp = enc_to_intel_dp(connector->encoder);
4482 seq_printf(m, "%lx", intel_dp->compliance_test_data);
4483 } else
4484 seq_puts(m, "0");
4485 }
4486
4487 return 0;
4488 }
4489 static int i915_displayport_test_data_open(struct inode *inode,
4490 struct file *file)
4491 {
4492 struct drm_device *dev = inode->i_private;
4493
4494 return single_open(file, i915_displayport_test_data_show, dev);
4495 }
4496
4497 static const struct file_operations i915_displayport_test_data_fops = {
4498 .owner = THIS_MODULE,
4499 .open = i915_displayport_test_data_open,
4500 .read = seq_read,
4501 .llseek = seq_lseek,
4502 .release = single_release
4503 };
4504
4505 static int i915_displayport_test_type_show(struct seq_file *m, void *data)
4506 {
4507 struct drm_device *dev = m->private;
4508 struct drm_connector *connector;
4509 struct list_head *connector_list = &dev->mode_config.connector_list;
4510 struct intel_dp *intel_dp;
4511
4512 list_for_each_entry(connector, connector_list, head) {
4513
4514 if (connector->connector_type !=
4515 DRM_MODE_CONNECTOR_DisplayPort)
4516 continue;
4517
4518 if (connector->status == connector_status_connected &&
4519 connector->encoder != NULL) {
4520 intel_dp = enc_to_intel_dp(connector->encoder);
4521 seq_printf(m, "%02lx", intel_dp->compliance_test_type);
4522 } else
4523 seq_puts(m, "0");
4524 }
4525
4526 return 0;
4527 }
4528
4529 static int i915_displayport_test_type_open(struct inode *inode,
4530 struct file *file)
4531 {
4532 struct drm_device *dev = inode->i_private;
4533
4534 return single_open(file, i915_displayport_test_type_show, dev);
4535 }
4536
4537 static const struct file_operations i915_displayport_test_type_fops = {
4538 .owner = THIS_MODULE,
4539 .open = i915_displayport_test_type_open,
4540 .read = seq_read,
4541 .llseek = seq_lseek,
4542 .release = single_release
4543 };
4544
4545 static void wm_latency_show(struct seq_file *m, const uint16_t wm[8])
4546 {
4547 struct drm_device *dev = m->private;
4548 int level;
4549 int num_levels;
4550
4551 if (IS_CHERRYVIEW(dev))
4552 num_levels = 3;
4553 else if (IS_VALLEYVIEW(dev))
4554 num_levels = 1;
4555 else
4556 num_levels = ilk_wm_max_level(dev) + 1;
4557
4558 drm_modeset_lock_all(dev);
4559
4560 for (level = 0; level < num_levels; level++) {
4561 unsigned int latency = wm[level];
4562
4563 /*
4564 * - WM1+ latency values in 0.5us units
4565 * - latencies are in us on gen9/vlv/chv
4566 */
4567 if (INTEL_INFO(dev)->gen >= 9 || IS_VALLEYVIEW(dev) ||
4568 IS_CHERRYVIEW(dev))
4569 latency *= 10;
4570 else if (level > 0)
4571 latency *= 5;
4572
4573 seq_printf(m, "WM%d %u (%u.%u usec)\n",
4574 level, wm[level], latency / 10, latency % 10);
4575 }
4576
4577 drm_modeset_unlock_all(dev);
4578 }
4579
4580 static int pri_wm_latency_show(struct seq_file *m, void *data)
4581 {
4582 struct drm_device *dev = m->private;
4583 struct drm_i915_private *dev_priv = dev->dev_private;
4584 const uint16_t *latencies;
4585
4586 if (INTEL_INFO(dev)->gen >= 9)
4587 latencies = dev_priv->wm.skl_latency;
4588 else
4589 latencies = to_i915(dev)->wm.pri_latency;
4590
4591 wm_latency_show(m, latencies);
4592
4593 return 0;
4594 }
4595
4596 static int spr_wm_latency_show(struct seq_file *m, void *data)
4597 {
4598 struct drm_device *dev = m->private;
4599 struct drm_i915_private *dev_priv = dev->dev_private;
4600 const uint16_t *latencies;
4601
4602 if (INTEL_INFO(dev)->gen >= 9)
4603 latencies = dev_priv->wm.skl_latency;
4604 else
4605 latencies = to_i915(dev)->wm.spr_latency;
4606
4607 wm_latency_show(m, latencies);
4608
4609 return 0;
4610 }
4611
4612 static int cur_wm_latency_show(struct seq_file *m, void *data)
4613 {
4614 struct drm_device *dev = m->private;
4615 struct drm_i915_private *dev_priv = dev->dev_private;
4616 const uint16_t *latencies;
4617
4618 if (INTEL_INFO(dev)->gen >= 9)
4619 latencies = dev_priv->wm.skl_latency;
4620 else
4621 latencies = to_i915(dev)->wm.cur_latency;
4622
4623 wm_latency_show(m, latencies);
4624
4625 return 0;
4626 }
4627
4628 static int pri_wm_latency_open(struct inode *inode, struct file *file)
4629 {
4630 struct drm_device *dev = inode->i_private;
4631
4632 if (INTEL_INFO(dev)->gen < 5)
4633 return -ENODEV;
4634
4635 return single_open(file, pri_wm_latency_show, dev);
4636 }
4637
4638 static int spr_wm_latency_open(struct inode *inode, struct file *file)
4639 {
4640 struct drm_device *dev = inode->i_private;
4641
4642 if (HAS_GMCH_DISPLAY(dev))
4643 return -ENODEV;
4644
4645 return single_open(file, spr_wm_latency_show, dev);
4646 }
4647
4648 static int cur_wm_latency_open(struct inode *inode, struct file *file)
4649 {
4650 struct drm_device *dev = inode->i_private;
4651
4652 if (HAS_GMCH_DISPLAY(dev))
4653 return -ENODEV;
4654
4655 return single_open(file, cur_wm_latency_show, dev);
4656 }
4657
4658 static ssize_t wm_latency_write(struct file *file, const char __user *ubuf,
4659 size_t len, loff_t *offp, uint16_t wm[8])
4660 {
4661 struct seq_file *m = file->private_data;
4662 struct drm_device *dev = m->private;
4663 uint16_t new[8] = { 0 };
4664 int num_levels;
4665 int level;
4666 int ret;
4667 char tmp[32];
4668
4669 if (IS_CHERRYVIEW(dev))
4670 num_levels = 3;
4671 else if (IS_VALLEYVIEW(dev))
4672 num_levels = 1;
4673 else
4674 num_levels = ilk_wm_max_level(dev) + 1;
4675
4676 if (len >= sizeof(tmp))
4677 return -EINVAL;
4678
4679 if (copy_from_user(tmp, ubuf, len))
4680 return -EFAULT;
4681
4682 tmp[len] = '\0';
4683
4684 ret = sscanf(tmp, "%hu %hu %hu %hu %hu %hu %hu %hu",
4685 &new[0], &new[1], &new[2], &new[3],
4686 &new[4], &new[5], &new[6], &new[7]);
4687 if (ret != num_levels)
4688 return -EINVAL;
4689
4690 drm_modeset_lock_all(dev);
4691
4692 for (level = 0; level < num_levels; level++)
4693 wm[level] = new[level];
4694
4695 drm_modeset_unlock_all(dev);
4696
4697 return len;
4698 }
4699
4700
4701 static ssize_t pri_wm_latency_write(struct file *file, const char __user *ubuf,
4702 size_t len, loff_t *offp)
4703 {
4704 struct seq_file *m = file->private_data;
4705 struct drm_device *dev = m->private;
4706 struct drm_i915_private *dev_priv = dev->dev_private;
4707 uint16_t *latencies;
4708
4709 if (INTEL_INFO(dev)->gen >= 9)
4710 latencies = dev_priv->wm.skl_latency;
4711 else
4712 latencies = to_i915(dev)->wm.pri_latency;
4713
4714 return wm_latency_write(file, ubuf, len, offp, latencies);
4715 }
4716
4717 static ssize_t spr_wm_latency_write(struct file *file, const char __user *ubuf,
4718 size_t len, loff_t *offp)
4719 {
4720 struct seq_file *m = file->private_data;
4721 struct drm_device *dev = m->private;
4722 struct drm_i915_private *dev_priv = dev->dev_private;
4723 uint16_t *latencies;
4724
4725 if (INTEL_INFO(dev)->gen >= 9)
4726 latencies = dev_priv->wm.skl_latency;
4727 else
4728 latencies = to_i915(dev)->wm.spr_latency;
4729
4730 return wm_latency_write(file, ubuf, len, offp, latencies);
4731 }
4732
4733 static ssize_t cur_wm_latency_write(struct file *file, const char __user *ubuf,
4734 size_t len, loff_t *offp)
4735 {
4736 struct seq_file *m = file->private_data;
4737 struct drm_device *dev = m->private;
4738 struct drm_i915_private *dev_priv = dev->dev_private;
4739 uint16_t *latencies;
4740
4741 if (INTEL_INFO(dev)->gen >= 9)
4742 latencies = dev_priv->wm.skl_latency;
4743 else
4744 latencies = to_i915(dev)->wm.cur_latency;
4745
4746 return wm_latency_write(file, ubuf, len, offp, latencies);
4747 }
4748
4749 static const struct file_operations i915_pri_wm_latency_fops = {
4750 .owner = THIS_MODULE,
4751 .open = pri_wm_latency_open,
4752 .read = seq_read,
4753 .llseek = seq_lseek,
4754 .release = single_release,
4755 .write = pri_wm_latency_write
4756 };
4757
4758 static const struct file_operations i915_spr_wm_latency_fops = {
4759 .owner = THIS_MODULE,
4760 .open = spr_wm_latency_open,
4761 .read = seq_read,
4762 .llseek = seq_lseek,
4763 .release = single_release,
4764 .write = spr_wm_latency_write
4765 };
4766
4767 static const struct file_operations i915_cur_wm_latency_fops = {
4768 .owner = THIS_MODULE,
4769 .open = cur_wm_latency_open,
4770 .read = seq_read,
4771 .llseek = seq_lseek,
4772 .release = single_release,
4773 .write = cur_wm_latency_write
4774 };
4775
4776 static int
4777 i915_wedged_get(void *data, u64 *val)
4778 {
4779 struct drm_device *dev = data;
4780 struct drm_i915_private *dev_priv = dev->dev_private;
4781
4782 *val = i915_terminally_wedged(&dev_priv->gpu_error);
4783
4784 return 0;
4785 }
4786
4787 static int
4788 i915_wedged_set(void *data, u64 val)
4789 {
4790 struct drm_device *dev = data;
4791 struct drm_i915_private *dev_priv = dev->dev_private;
4792
4793 /*
4794 * There is no safeguard against this debugfs entry colliding
4795 * with the hangcheck calling same i915_handle_error() in
4796 * parallel, causing an explosion. For now we assume that the
4797 * test harness is responsible enough not to inject gpu hangs
4798 * while it is writing to 'i915_wedged'
4799 */
4800
4801 if (i915_reset_in_progress(&dev_priv->gpu_error))
4802 return -EAGAIN;
4803
4804 intel_runtime_pm_get(dev_priv);
4805
4806 i915_handle_error(dev_priv, val,
4807 "Manually setting wedged to %llu", val);
4808
4809 intel_runtime_pm_put(dev_priv);
4810
4811 return 0;
4812 }
4813
4814 DEFINE_SIMPLE_ATTRIBUTE(i915_wedged_fops,
4815 i915_wedged_get, i915_wedged_set,
4816 "%llu\n");
4817
4818 static int
4819 i915_ring_stop_get(void *data, u64 *val)
4820 {
4821 struct drm_device *dev = data;
4822 struct drm_i915_private *dev_priv = dev->dev_private;
4823
4824 *val = dev_priv->gpu_error.stop_rings;
4825
4826 return 0;
4827 }
4828
4829 static int
4830 i915_ring_stop_set(void *data, u64 val)
4831 {
4832 struct drm_device *dev = data;
4833 struct drm_i915_private *dev_priv = dev->dev_private;
4834 int ret;
4835
4836 DRM_DEBUG_DRIVER("Stopping rings 0x%08llx\n", val);
4837
4838 ret = mutex_lock_interruptible(&dev->struct_mutex);
4839 if (ret)
4840 return ret;
4841
4842 dev_priv->gpu_error.stop_rings = val;
4843 mutex_unlock(&dev->struct_mutex);
4844
4845 return 0;
4846 }
4847
4848 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_stop_fops,
4849 i915_ring_stop_get, i915_ring_stop_set,
4850 "0x%08llx\n");
4851
4852 static int
4853 i915_ring_missed_irq_get(void *data, u64 *val)
4854 {
4855 struct drm_device *dev = data;
4856 struct drm_i915_private *dev_priv = dev->dev_private;
4857
4858 *val = dev_priv->gpu_error.missed_irq_rings;
4859 return 0;
4860 }
4861
4862 static int
4863 i915_ring_missed_irq_set(void *data, u64 val)
4864 {
4865 struct drm_device *dev = data;
4866 struct drm_i915_private *dev_priv = dev->dev_private;
4867 int ret;
4868
4869 /* Lock against concurrent debugfs callers */
4870 ret = mutex_lock_interruptible(&dev->struct_mutex);
4871 if (ret)
4872 return ret;
4873 dev_priv->gpu_error.missed_irq_rings = val;
4874 mutex_unlock(&dev->struct_mutex);
4875
4876 return 0;
4877 }
4878
4879 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_missed_irq_fops,
4880 i915_ring_missed_irq_get, i915_ring_missed_irq_set,
4881 "0x%08llx\n");
4882
4883 static int
4884 i915_ring_test_irq_get(void *data, u64 *val)
4885 {
4886 struct drm_device *dev = data;
4887 struct drm_i915_private *dev_priv = dev->dev_private;
4888
4889 *val = dev_priv->gpu_error.test_irq_rings;
4890
4891 return 0;
4892 }
4893
4894 static int
4895 i915_ring_test_irq_set(void *data, u64 val)
4896 {
4897 struct drm_device *dev = data;
4898 struct drm_i915_private *dev_priv = dev->dev_private;
4899 int ret;
4900
4901 DRM_DEBUG_DRIVER("Masking interrupts on rings 0x%08llx\n", val);
4902
4903 /* Lock against concurrent debugfs callers */
4904 ret = mutex_lock_interruptible(&dev->struct_mutex);
4905 if (ret)
4906 return ret;
4907
4908 dev_priv->gpu_error.test_irq_rings = val;
4909 mutex_unlock(&dev->struct_mutex);
4910
4911 return 0;
4912 }
4913
4914 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_test_irq_fops,
4915 i915_ring_test_irq_get, i915_ring_test_irq_set,
4916 "0x%08llx\n");
4917
4918 #define DROP_UNBOUND 0x1
4919 #define DROP_BOUND 0x2
4920 #define DROP_RETIRE 0x4
4921 #define DROP_ACTIVE 0x8
4922 #define DROP_ALL (DROP_UNBOUND | \
4923 DROP_BOUND | \
4924 DROP_RETIRE | \
4925 DROP_ACTIVE)
4926 static int
4927 i915_drop_caches_get(void *data, u64 *val)
4928 {
4929 *val = DROP_ALL;
4930
4931 return 0;
4932 }
4933
4934 static int
4935 i915_drop_caches_set(void *data, u64 val)
4936 {
4937 struct drm_device *dev = data;
4938 struct drm_i915_private *dev_priv = dev->dev_private;
4939 int ret;
4940
4941 DRM_DEBUG("Dropping caches: 0x%08llx\n", val);
4942
4943 /* No need to check and wait for gpu resets, only libdrm auto-restarts
4944 * on ioctls on -EAGAIN. */
4945 ret = mutex_lock_interruptible(&dev->struct_mutex);
4946 if (ret)
4947 return ret;
4948
4949 if (val & DROP_ACTIVE) {
4950 ret = i915_gem_wait_for_idle(dev_priv);
4951 if (ret)
4952 goto unlock;
4953 }
4954
4955 if (val & (DROP_RETIRE | DROP_ACTIVE))
4956 i915_gem_retire_requests(dev_priv);
4957
4958 if (val & DROP_BOUND)
4959 i915_gem_shrink(dev_priv, LONG_MAX, I915_SHRINK_BOUND);
4960
4961 if (val & DROP_UNBOUND)
4962 i915_gem_shrink(dev_priv, LONG_MAX, I915_SHRINK_UNBOUND);
4963
4964 unlock:
4965 mutex_unlock(&dev->struct_mutex);
4966
4967 return ret;
4968 }
4969
4970 DEFINE_SIMPLE_ATTRIBUTE(i915_drop_caches_fops,
4971 i915_drop_caches_get, i915_drop_caches_set,
4972 "0x%08llx\n");
4973
4974 static int
4975 i915_max_freq_get(void *data, u64 *val)
4976 {
4977 struct drm_device *dev = data;
4978 struct drm_i915_private *dev_priv = dev->dev_private;
4979 int ret;
4980
4981 if (INTEL_INFO(dev)->gen < 6)
4982 return -ENODEV;
4983
4984 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
4985
4986 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
4987 if (ret)
4988 return ret;
4989
4990 *val = intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit);
4991 mutex_unlock(&dev_priv->rps.hw_lock);
4992
4993 return 0;
4994 }
4995
4996 static int
4997 i915_max_freq_set(void *data, u64 val)
4998 {
4999 struct drm_device *dev = data;
5000 struct drm_i915_private *dev_priv = dev->dev_private;
5001 u32 hw_max, hw_min;
5002 int ret;
5003
5004 if (INTEL_INFO(dev)->gen < 6)
5005 return -ENODEV;
5006
5007 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
5008
5009 DRM_DEBUG_DRIVER("Manually setting max freq to %llu\n", val);
5010
5011 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
5012 if (ret)
5013 return ret;
5014
5015 /*
5016 * Turbo will still be enabled, but won't go above the set value.
5017 */
5018 val = intel_freq_opcode(dev_priv, val);
5019
5020 hw_max = dev_priv->rps.max_freq;
5021 hw_min = dev_priv->rps.min_freq;
5022
5023 if (val < hw_min || val > hw_max || val < dev_priv->rps.min_freq_softlimit) {
5024 mutex_unlock(&dev_priv->rps.hw_lock);
5025 return -EINVAL;
5026 }
5027
5028 dev_priv->rps.max_freq_softlimit = val;
5029
5030 intel_set_rps(dev_priv, val);
5031
5032 mutex_unlock(&dev_priv->rps.hw_lock);
5033
5034 return 0;
5035 }
5036
5037 DEFINE_SIMPLE_ATTRIBUTE(i915_max_freq_fops,
5038 i915_max_freq_get, i915_max_freq_set,
5039 "%llu\n");
5040
5041 static int
5042 i915_min_freq_get(void *data, u64 *val)
5043 {
5044 struct drm_device *dev = data;
5045 struct drm_i915_private *dev_priv = dev->dev_private;
5046 int ret;
5047
5048 if (INTEL_INFO(dev)->gen < 6)
5049 return -ENODEV;
5050
5051 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
5052
5053 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
5054 if (ret)
5055 return ret;
5056
5057 *val = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit);
5058 mutex_unlock(&dev_priv->rps.hw_lock);
5059
5060 return 0;
5061 }
5062
5063 static int
5064 i915_min_freq_set(void *data, u64 val)
5065 {
5066 struct drm_device *dev = data;
5067 struct drm_i915_private *dev_priv = dev->dev_private;
5068 u32 hw_max, hw_min;
5069 int ret;
5070
5071 if (INTEL_INFO(dev)->gen < 6)
5072 return -ENODEV;
5073
5074 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
5075
5076 DRM_DEBUG_DRIVER("Manually setting min freq to %llu\n", val);
5077
5078 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
5079 if (ret)
5080 return ret;
5081
5082 /*
5083 * Turbo will still be enabled, but won't go below the set value.
5084 */
5085 val = intel_freq_opcode(dev_priv, val);
5086
5087 hw_max = dev_priv->rps.max_freq;
5088 hw_min = dev_priv->rps.min_freq;
5089
5090 if (val < hw_min || val > hw_max || val > dev_priv->rps.max_freq_softlimit) {
5091 mutex_unlock(&dev_priv->rps.hw_lock);
5092 return -EINVAL;
5093 }
5094
5095 dev_priv->rps.min_freq_softlimit = val;
5096
5097 intel_set_rps(dev_priv, val);
5098
5099 mutex_unlock(&dev_priv->rps.hw_lock);
5100
5101 return 0;
5102 }
5103
5104 DEFINE_SIMPLE_ATTRIBUTE(i915_min_freq_fops,
5105 i915_min_freq_get, i915_min_freq_set,
5106 "%llu\n");
5107
5108 static int
5109 i915_cache_sharing_get(void *data, u64 *val)
5110 {
5111 struct drm_device *dev = data;
5112 struct drm_i915_private *dev_priv = dev->dev_private;
5113 u32 snpcr;
5114 int ret;
5115
5116 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
5117 return -ENODEV;
5118
5119 ret = mutex_lock_interruptible(&dev->struct_mutex);
5120 if (ret)
5121 return ret;
5122 intel_runtime_pm_get(dev_priv);
5123
5124 snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
5125
5126 intel_runtime_pm_put(dev_priv);
5127 mutex_unlock(&dev_priv->dev->struct_mutex);
5128
5129 *val = (snpcr & GEN6_MBC_SNPCR_MASK) >> GEN6_MBC_SNPCR_SHIFT;
5130
5131 return 0;
5132 }
5133
5134 static int
5135 i915_cache_sharing_set(void *data, u64 val)
5136 {
5137 struct drm_device *dev = data;
5138 struct drm_i915_private *dev_priv = dev->dev_private;
5139 u32 snpcr;
5140
5141 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
5142 return -ENODEV;
5143
5144 if (val > 3)
5145 return -EINVAL;
5146
5147 intel_runtime_pm_get(dev_priv);
5148 DRM_DEBUG_DRIVER("Manually setting uncore sharing to %llu\n", val);
5149
5150 /* Update the cache sharing policy here as well */
5151 snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
5152 snpcr &= ~GEN6_MBC_SNPCR_MASK;
5153 snpcr |= (val << GEN6_MBC_SNPCR_SHIFT);
5154 I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr);
5155
5156 intel_runtime_pm_put(dev_priv);
5157 return 0;
5158 }
5159
5160 DEFINE_SIMPLE_ATTRIBUTE(i915_cache_sharing_fops,
5161 i915_cache_sharing_get, i915_cache_sharing_set,
5162 "%llu\n");
5163
5164 struct sseu_dev_status {
5165 unsigned int slice_total;
5166 unsigned int subslice_total;
5167 unsigned int subslice_per_slice;
5168 unsigned int eu_total;
5169 unsigned int eu_per_subslice;
5170 };
5171
5172 static void cherryview_sseu_device_status(struct drm_device *dev,
5173 struct sseu_dev_status *stat)
5174 {
5175 struct drm_i915_private *dev_priv = dev->dev_private;
5176 int ss_max = 2;
5177 int ss;
5178 u32 sig1[ss_max], sig2[ss_max];
5179
5180 sig1[0] = I915_READ(CHV_POWER_SS0_SIG1);
5181 sig1[1] = I915_READ(CHV_POWER_SS1_SIG1);
5182 sig2[0] = I915_READ(CHV_POWER_SS0_SIG2);
5183 sig2[1] = I915_READ(CHV_POWER_SS1_SIG2);
5184
5185 for (ss = 0; ss < ss_max; ss++) {
5186 unsigned int eu_cnt;
5187
5188 if (sig1[ss] & CHV_SS_PG_ENABLE)
5189 /* skip disabled subslice */
5190 continue;
5191
5192 stat->slice_total = 1;
5193 stat->subslice_per_slice++;
5194 eu_cnt = ((sig1[ss] & CHV_EU08_PG_ENABLE) ? 0 : 2) +
5195 ((sig1[ss] & CHV_EU19_PG_ENABLE) ? 0 : 2) +
5196 ((sig1[ss] & CHV_EU210_PG_ENABLE) ? 0 : 2) +
5197 ((sig2[ss] & CHV_EU311_PG_ENABLE) ? 0 : 2);
5198 stat->eu_total += eu_cnt;
5199 stat->eu_per_subslice = max(stat->eu_per_subslice, eu_cnt);
5200 }
5201 stat->subslice_total = stat->subslice_per_slice;
5202 }
5203
5204 static void gen9_sseu_device_status(struct drm_device *dev,
5205 struct sseu_dev_status *stat)
5206 {
5207 struct drm_i915_private *dev_priv = dev->dev_private;
5208 int s_max = 3, ss_max = 4;
5209 int s, ss;
5210 u32 s_reg[s_max], eu_reg[2*s_max], eu_mask[2];
5211
5212 /* BXT has a single slice and at most 3 subslices. */
5213 if (IS_BROXTON(dev)) {
5214 s_max = 1;
5215 ss_max = 3;
5216 }
5217
5218 for (s = 0; s < s_max; s++) {
5219 s_reg[s] = I915_READ(GEN9_SLICE_PGCTL_ACK(s));
5220 eu_reg[2*s] = I915_READ(GEN9_SS01_EU_PGCTL_ACK(s));
5221 eu_reg[2*s + 1] = I915_READ(GEN9_SS23_EU_PGCTL_ACK(s));
5222 }
5223
5224 eu_mask[0] = GEN9_PGCTL_SSA_EU08_ACK |
5225 GEN9_PGCTL_SSA_EU19_ACK |
5226 GEN9_PGCTL_SSA_EU210_ACK |
5227 GEN9_PGCTL_SSA_EU311_ACK;
5228 eu_mask[1] = GEN9_PGCTL_SSB_EU08_ACK |
5229 GEN9_PGCTL_SSB_EU19_ACK |
5230 GEN9_PGCTL_SSB_EU210_ACK |
5231 GEN9_PGCTL_SSB_EU311_ACK;
5232
5233 for (s = 0; s < s_max; s++) {
5234 unsigned int ss_cnt = 0;
5235
5236 if ((s_reg[s] & GEN9_PGCTL_SLICE_ACK) == 0)
5237 /* skip disabled slice */
5238 continue;
5239
5240 stat->slice_total++;
5241
5242 if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev))
5243 ss_cnt = INTEL_INFO(dev)->subslice_per_slice;
5244
5245 for (ss = 0; ss < ss_max; ss++) {
5246 unsigned int eu_cnt;
5247
5248 if (IS_BROXTON(dev) &&
5249 !(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss))))
5250 /* skip disabled subslice */
5251 continue;
5252
5253 if (IS_BROXTON(dev))
5254 ss_cnt++;
5255
5256 eu_cnt = 2 * hweight32(eu_reg[2*s + ss/2] &
5257 eu_mask[ss%2]);
5258 stat->eu_total += eu_cnt;
5259 stat->eu_per_subslice = max(stat->eu_per_subslice,
5260 eu_cnt);
5261 }
5262
5263 stat->subslice_total += ss_cnt;
5264 stat->subslice_per_slice = max(stat->subslice_per_slice,
5265 ss_cnt);
5266 }
5267 }
5268
5269 static void broadwell_sseu_device_status(struct drm_device *dev,
5270 struct sseu_dev_status *stat)
5271 {
5272 struct drm_i915_private *dev_priv = dev->dev_private;
5273 int s;
5274 u32 slice_info = I915_READ(GEN8_GT_SLICE_INFO);
5275
5276 stat->slice_total = hweight32(slice_info & GEN8_LSLICESTAT_MASK);
5277
5278 if (stat->slice_total) {
5279 stat->subslice_per_slice = INTEL_INFO(dev)->subslice_per_slice;
5280 stat->subslice_total = stat->slice_total *
5281 stat->subslice_per_slice;
5282 stat->eu_per_subslice = INTEL_INFO(dev)->eu_per_subslice;
5283 stat->eu_total = stat->eu_per_subslice * stat->subslice_total;
5284
5285 /* subtract fused off EU(s) from enabled slice(s) */
5286 for (s = 0; s < stat->slice_total; s++) {
5287 u8 subslice_7eu = INTEL_INFO(dev)->subslice_7eu[s];
5288
5289 stat->eu_total -= hweight8(subslice_7eu);
5290 }
5291 }
5292 }
5293
5294 static int i915_sseu_status(struct seq_file *m, void *unused)
5295 {
5296 struct drm_info_node *node = (struct drm_info_node *) m->private;
5297 struct drm_device *dev = node->minor->dev;
5298 struct sseu_dev_status stat;
5299
5300 if (INTEL_INFO(dev)->gen < 8)
5301 return -ENODEV;
5302
5303 seq_puts(m, "SSEU Device Info\n");
5304 seq_printf(m, " Available Slice Total: %u\n",
5305 INTEL_INFO(dev)->slice_total);
5306 seq_printf(m, " Available Subslice Total: %u\n",
5307 INTEL_INFO(dev)->subslice_total);
5308 seq_printf(m, " Available Subslice Per Slice: %u\n",
5309 INTEL_INFO(dev)->subslice_per_slice);
5310 seq_printf(m, " Available EU Total: %u\n",
5311 INTEL_INFO(dev)->eu_total);
5312 seq_printf(m, " Available EU Per Subslice: %u\n",
5313 INTEL_INFO(dev)->eu_per_subslice);
5314 seq_printf(m, " Has Pooled EU: %s\n", yesno(HAS_POOLED_EU(dev)));
5315 if (HAS_POOLED_EU(dev))
5316 seq_printf(m, " Min EU in pool: %u\n",
5317 INTEL_INFO(dev)->min_eu_in_pool);
5318 seq_printf(m, " Has Slice Power Gating: %s\n",
5319 yesno(INTEL_INFO(dev)->has_slice_pg));
5320 seq_printf(m, " Has Subslice Power Gating: %s\n",
5321 yesno(INTEL_INFO(dev)->has_subslice_pg));
5322 seq_printf(m, " Has EU Power Gating: %s\n",
5323 yesno(INTEL_INFO(dev)->has_eu_pg));
5324
5325 seq_puts(m, "SSEU Device Status\n");
5326 memset(&stat, 0, sizeof(stat));
5327 if (IS_CHERRYVIEW(dev)) {
5328 cherryview_sseu_device_status(dev, &stat);
5329 } else if (IS_BROADWELL(dev)) {
5330 broadwell_sseu_device_status(dev, &stat);
5331 } else if (INTEL_INFO(dev)->gen >= 9) {
5332 gen9_sseu_device_status(dev, &stat);
5333 }
5334 seq_printf(m, " Enabled Slice Total: %u\n",
5335 stat.slice_total);
5336 seq_printf(m, " Enabled Subslice Total: %u\n",
5337 stat.subslice_total);
5338 seq_printf(m, " Enabled Subslice Per Slice: %u\n",
5339 stat.subslice_per_slice);
5340 seq_printf(m, " Enabled EU Total: %u\n",
5341 stat.eu_total);
5342 seq_printf(m, " Enabled EU Per Subslice: %u\n",
5343 stat.eu_per_subslice);
5344
5345 return 0;
5346 }
5347
5348 static int i915_forcewake_open(struct inode *inode, struct file *file)
5349 {
5350 struct drm_device *dev = inode->i_private;
5351 struct drm_i915_private *dev_priv = dev->dev_private;
5352
5353 if (INTEL_INFO(dev)->gen < 6)
5354 return 0;
5355
5356 intel_runtime_pm_get(dev_priv);
5357 intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
5358
5359 return 0;
5360 }
5361
5362 static int i915_forcewake_release(struct inode *inode, struct file *file)
5363 {
5364 struct drm_device *dev = inode->i_private;
5365 struct drm_i915_private *dev_priv = dev->dev_private;
5366
5367 if (INTEL_INFO(dev)->gen < 6)
5368 return 0;
5369
5370 intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
5371 intel_runtime_pm_put(dev_priv);
5372
5373 return 0;
5374 }
5375
5376 static const struct file_operations i915_forcewake_fops = {
5377 .owner = THIS_MODULE,
5378 .open = i915_forcewake_open,
5379 .release = i915_forcewake_release,
5380 };
5381
5382 static int i915_forcewake_create(struct dentry *root, struct drm_minor *minor)
5383 {
5384 struct drm_device *dev = minor->dev;
5385 struct dentry *ent;
5386
5387 ent = debugfs_create_file("i915_forcewake_user",
5388 S_IRUSR,
5389 root, dev,
5390 &i915_forcewake_fops);
5391 if (!ent)
5392 return -ENOMEM;
5393
5394 return drm_add_fake_info_node(minor, ent, &i915_forcewake_fops);
5395 }
5396
5397 static int i915_debugfs_create(struct dentry *root,
5398 struct drm_minor *minor,
5399 const char *name,
5400 const struct file_operations *fops)
5401 {
5402 struct drm_device *dev = minor->dev;
5403 struct dentry *ent;
5404
5405 ent = debugfs_create_file(name,
5406 S_IRUGO | S_IWUSR,
5407 root, dev,
5408 fops);
5409 if (!ent)
5410 return -ENOMEM;
5411
5412 return drm_add_fake_info_node(minor, ent, fops);
5413 }
5414
5415 static const struct drm_info_list i915_debugfs_list[] = {
5416 {"i915_capabilities", i915_capabilities, 0},
5417 {"i915_gem_objects", i915_gem_object_info, 0},
5418 {"i915_gem_gtt", i915_gem_gtt_info, 0},
5419 {"i915_gem_pinned", i915_gem_gtt_info, 0, (void *) PINNED_LIST},
5420 {"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
5421 {"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST},
5422 {"i915_gem_stolen", i915_gem_stolen_list_info },
5423 {"i915_gem_pageflip", i915_gem_pageflip_info, 0},
5424 {"i915_gem_request", i915_gem_request_info, 0},
5425 {"i915_gem_seqno", i915_gem_seqno_info, 0},
5426 {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
5427 {"i915_gem_interrupt", i915_interrupt_info, 0},
5428 {"i915_gem_hws", i915_hws_info, 0, (void *)RCS},
5429 {"i915_gem_hws_blt", i915_hws_info, 0, (void *)BCS},
5430 {"i915_gem_hws_bsd", i915_hws_info, 0, (void *)VCS},
5431 {"i915_gem_hws_vebox", i915_hws_info, 0, (void *)VECS},
5432 {"i915_gem_batch_pool", i915_gem_batch_pool_info, 0},
5433 {"i915_guc_info", i915_guc_info, 0},
5434 {"i915_guc_load_status", i915_guc_load_status_info, 0},
5435 {"i915_guc_log_dump", i915_guc_log_dump, 0},
5436 {"i915_frequency_info", i915_frequency_info, 0},
5437 {"i915_hangcheck_info", i915_hangcheck_info, 0},
5438 {"i915_drpc_info", i915_drpc_info, 0},
5439 {"i915_emon_status", i915_emon_status, 0},
5440 {"i915_ring_freq_table", i915_ring_freq_table, 0},
5441 {"i915_frontbuffer_tracking", i915_frontbuffer_tracking, 0},
5442 {"i915_fbc_status", i915_fbc_status, 0},
5443 {"i915_ips_status", i915_ips_status, 0},
5444 {"i915_sr_status", i915_sr_status, 0},
5445 {"i915_opregion", i915_opregion, 0},
5446 {"i915_vbt", i915_vbt, 0},
5447 {"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
5448 {"i915_context_status", i915_context_status, 0},
5449 {"i915_dump_lrc", i915_dump_lrc, 0},
5450 {"i915_execlists", i915_execlists, 0},
5451 {"i915_forcewake_domains", i915_forcewake_domains, 0},
5452 {"i915_swizzle_info", i915_swizzle_info, 0},
5453 {"i915_ppgtt_info", i915_ppgtt_info, 0},
5454 {"i915_llc", i915_llc, 0},
5455 {"i915_edp_psr_status", i915_edp_psr_status, 0},
5456 {"i915_sink_crc_eDP1", i915_sink_crc, 0},
5457 {"i915_energy_uJ", i915_energy_uJ, 0},
5458 {"i915_runtime_pm_status", i915_runtime_pm_status, 0},
5459 {"i915_power_domain_info", i915_power_domain_info, 0},
5460 {"i915_dmc_info", i915_dmc_info, 0},
5461 {"i915_display_info", i915_display_info, 0},
5462 {"i915_semaphore_status", i915_semaphore_status, 0},
5463 {"i915_shared_dplls_info", i915_shared_dplls_info, 0},
5464 {"i915_dp_mst_info", i915_dp_mst_info, 0},
5465 {"i915_wa_registers", i915_wa_registers, 0},
5466 {"i915_ddb_info", i915_ddb_info, 0},
5467 {"i915_sseu_status", i915_sseu_status, 0},
5468 {"i915_drrs_status", i915_drrs_status, 0},
5469 {"i915_rps_boost_info", i915_rps_boost_info, 0},
5470 };
5471 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
5472
5473 static const struct i915_debugfs_files {
5474 const char *name;
5475 const struct file_operations *fops;
5476 } i915_debugfs_files[] = {
5477 {"i915_wedged", &i915_wedged_fops},
5478 {"i915_max_freq", &i915_max_freq_fops},
5479 {"i915_min_freq", &i915_min_freq_fops},
5480 {"i915_cache_sharing", &i915_cache_sharing_fops},
5481 {"i915_ring_stop", &i915_ring_stop_fops},
5482 {"i915_ring_missed_irq", &i915_ring_missed_irq_fops},
5483 {"i915_ring_test_irq", &i915_ring_test_irq_fops},
5484 {"i915_gem_drop_caches", &i915_drop_caches_fops},
5485 {"i915_error_state", &i915_error_state_fops},
5486 {"i915_next_seqno", &i915_next_seqno_fops},
5487 {"i915_display_crc_ctl", &i915_display_crc_ctl_fops},
5488 {"i915_pri_wm_latency", &i915_pri_wm_latency_fops},
5489 {"i915_spr_wm_latency", &i915_spr_wm_latency_fops},
5490 {"i915_cur_wm_latency", &i915_cur_wm_latency_fops},
5491 {"i915_fbc_false_color", &i915_fbc_fc_fops},
5492 {"i915_dp_test_data", &i915_displayport_test_data_fops},
5493 {"i915_dp_test_type", &i915_displayport_test_type_fops},
5494 {"i915_dp_test_active", &i915_displayport_test_active_fops}
5495 };
5496
5497 void intel_display_crc_init(struct drm_device *dev)
5498 {
5499 struct drm_i915_private *dev_priv = dev->dev_private;
5500 enum pipe pipe;
5501
5502 for_each_pipe(dev_priv, pipe) {
5503 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];
5504
5505 pipe_crc->opened = false;
5506 spin_lock_init(&pipe_crc->lock);
5507 init_waitqueue_head(&pipe_crc->wq);
5508 }
5509 }
5510
5511 int i915_debugfs_register(struct drm_i915_private *dev_priv)
5512 {
5513 struct drm_minor *minor = dev_priv->dev->primary;
5514 int ret, i;
5515
5516 ret = i915_forcewake_create(minor->debugfs_root, minor);
5517 if (ret)
5518 return ret;
5519
5520 for (i = 0; i < ARRAY_SIZE(i915_pipe_crc_data); i++) {
5521 ret = i915_pipe_crc_create(minor->debugfs_root, minor, i);
5522 if (ret)
5523 return ret;
5524 }
5525
5526 for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
5527 ret = i915_debugfs_create(minor->debugfs_root, minor,
5528 i915_debugfs_files[i].name,
5529 i915_debugfs_files[i].fops);
5530 if (ret)
5531 return ret;
5532 }
5533
5534 return drm_debugfs_create_files(i915_debugfs_list,
5535 I915_DEBUGFS_ENTRIES,
5536 minor->debugfs_root, minor);
5537 }
5538
5539 void i915_debugfs_unregister(struct drm_i915_private *dev_priv)
5540 {
5541 struct drm_minor *minor = dev_priv->dev->primary;
5542 int i;
5543
5544 drm_debugfs_remove_files(i915_debugfs_list,
5545 I915_DEBUGFS_ENTRIES, minor);
5546
5547 drm_debugfs_remove_files((struct drm_info_list *) &i915_forcewake_fops,
5548 1, minor);
5549
5550 for (i = 0; i < ARRAY_SIZE(i915_pipe_crc_data); i++) {
5551 struct drm_info_list *info_list =
5552 (struct drm_info_list *)&i915_pipe_crc_data[i];
5553
5554 drm_debugfs_remove_files(info_list, 1, minor);
5555 }
5556
5557 for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
5558 struct drm_info_list *info_list =
5559 (struct drm_info_list *) i915_debugfs_files[i].fops;
5560
5561 drm_debugfs_remove_files(info_list, 1, minor);
5562 }
5563 }
5564
5565 struct dpcd_block {
5566 /* DPCD dump start address. */
5567 unsigned int offset;
5568 /* DPCD dump end address, inclusive. If unset, .size will be used. */
5569 unsigned int end;
5570 /* DPCD dump size. Used if .end is unset. If unset, defaults to 1. */
5571 size_t size;
5572 /* Only valid for eDP. */
5573 bool edp;
5574 };
5575
5576 static const struct dpcd_block i915_dpcd_debug[] = {
5577 { .offset = DP_DPCD_REV, .size = DP_RECEIVER_CAP_SIZE },
5578 { .offset = DP_PSR_SUPPORT, .end = DP_PSR_CAPS },
5579 { .offset = DP_DOWNSTREAM_PORT_0, .size = 16 },
5580 { .offset = DP_LINK_BW_SET, .end = DP_EDP_CONFIGURATION_SET },
5581 { .offset = DP_SINK_COUNT, .end = DP_ADJUST_REQUEST_LANE2_3 },
5582 { .offset = DP_SET_POWER },
5583 { .offset = DP_EDP_DPCD_REV },
5584 { .offset = DP_EDP_GENERAL_CAP_1, .end = DP_EDP_GENERAL_CAP_3 },
5585 { .offset = DP_EDP_DISPLAY_CONTROL_REGISTER, .end = DP_EDP_BACKLIGHT_FREQ_CAP_MAX_LSB },
5586 { .offset = DP_EDP_DBC_MINIMUM_BRIGHTNESS_SET, .end = DP_EDP_DBC_MAXIMUM_BRIGHTNESS_SET },
5587 };
5588
5589 static int i915_dpcd_show(struct seq_file *m, void *data)
5590 {
5591 struct drm_connector *connector = m->private;
5592 struct intel_dp *intel_dp =
5593 enc_to_intel_dp(&intel_attached_encoder(connector)->base);
5594 uint8_t buf[16];
5595 ssize_t err;
5596 int i;
5597
5598 if (connector->status != connector_status_connected)
5599 return -ENODEV;
5600
5601 for (i = 0; i < ARRAY_SIZE(i915_dpcd_debug); i++) {
5602 const struct dpcd_block *b = &i915_dpcd_debug[i];
5603 size_t size = b->end ? b->end - b->offset + 1 : (b->size ?: 1);
5604
5605 if (b->edp &&
5606 connector->connector_type != DRM_MODE_CONNECTOR_eDP)
5607 continue;
5608
5609 /* low tech for now */
5610 if (WARN_ON(size > sizeof(buf)))
5611 continue;
5612
5613 err = drm_dp_dpcd_read(&intel_dp->aux, b->offset, buf, size);
5614 if (err <= 0) {
5615 DRM_ERROR("dpcd read (%zu bytes at %u) failed (%zd)\n",
5616 size, b->offset, err);
5617 continue;
5618 }
5619
5620 seq_printf(m, "%04x: %*ph\n", b->offset, (int) size, buf);
5621 }
5622
5623 return 0;
5624 }
5625
5626 static int i915_dpcd_open(struct inode *inode, struct file *file)
5627 {
5628 return single_open(file, i915_dpcd_show, inode->i_private);
5629 }
5630
5631 static const struct file_operations i915_dpcd_fops = {
5632 .owner = THIS_MODULE,
5633 .open = i915_dpcd_open,
5634 .read = seq_read,
5635 .llseek = seq_lseek,
5636 .release = single_release,
5637 };
5638
5639 /**
5640 * i915_debugfs_connector_add - add i915 specific connector debugfs files
5641 * @connector: pointer to a registered drm_connector
5642 *
5643 * Cleanup will be done by drm_connector_unregister() through a call to
5644 * drm_debugfs_connector_remove().
5645 *
5646 * Returns 0 on success, negative error codes on error.
5647 */
5648 int i915_debugfs_connector_add(struct drm_connector *connector)
5649 {
5650 struct dentry *root = connector->debugfs_entry;
5651
5652 /* The connector must have been registered beforehands. */
5653 if (!root)
5654 return -ENODEV;
5655
5656 if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
5657 connector->connector_type == DRM_MODE_CONNECTOR_eDP)
5658 debugfs_create_file("i915_dpcd", S_IRUGO, root, connector,
5659 &i915_dpcd_fops);
5660
5661 return 0;
5662 }
Linux kernel - Deliverables
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