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drm/i915/skl: Determine SKL slice/subslice/EU info
[deliverable/linux.git] / drivers / gpu / drm / i915 / i915_debugfs.c
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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
43enum {
44 ACTIVE_LIST,
45 INACTIVE_LIST,
46 PINNED_LIST,
47};
48
49static const char *yesno(int v)
50{
51 return v ? "yes" : "no";
52}
53
54/* As the drm_debugfs_init() routines are called before dev->dev_private is
55 * allocated we need to hook into the minor for release. */
56static int
57drm_add_fake_info_node(struct drm_minor *minor,
58 struct dentry *ent,
59 const void *key)
60{
61 struct drm_info_node *node;
62
63 node = kmalloc(sizeof(*node), GFP_KERNEL);
64 if (node == NULL) {
65 debugfs_remove(ent);
66 return -ENOMEM;
67 }
68
69 node->minor = minor;
70 node->dent = ent;
71 node->info_ent = (void *) key;
72
73 mutex_lock(&minor->debugfs_lock);
74 list_add(&node->list, &minor->debugfs_list);
75 mutex_unlock(&minor->debugfs_lock);
76
77 return 0;
78}
79
80static int i915_capabilities(struct seq_file *m, void *data)
81{
82 struct drm_info_node *node = m->private;
83 struct drm_device *dev = node->minor->dev;
84 const struct intel_device_info *info = INTEL_INFO(dev);
85
86 seq_printf(m, "gen: %d\n", info->gen);
87 seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev));
88#define PRINT_FLAG(x) seq_printf(m, #x ": %s\n", yesno(info->x))
89#define SEP_SEMICOLON ;
90 DEV_INFO_FOR_EACH_FLAG(PRINT_FLAG, SEP_SEMICOLON);
91#undef PRINT_FLAG
92#undef SEP_SEMICOLON
93
94 return 0;
95}
96
97static const char *get_pin_flag(struct drm_i915_gem_object *obj)
98{
99 if (i915_gem_obj_is_pinned(obj))
100 return "p";
101 else
102 return " ";
103}
104
105static const char *get_tiling_flag(struct drm_i915_gem_object *obj)
106{
107 switch (obj->tiling_mode) {
108 default:
109 case I915_TILING_NONE: return " ";
110 case I915_TILING_X: return "X";
111 case I915_TILING_Y: return "Y";
112 }
113}
114
115static inline const char *get_global_flag(struct drm_i915_gem_object *obj)
116{
117 return i915_gem_obj_to_ggtt(obj) ? "g" : " ";
118}
119
120static void
121describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
122{
123 struct i915_vma *vma;
124 int pin_count = 0;
125
126 seq_printf(m, "%pK: %s%s%s %8zdKiB %02x %02x %x %x %x%s%s%s",
127 &obj->base,
128 get_pin_flag(obj),
129 get_tiling_flag(obj),
130 get_global_flag(obj),
131 obj->base.size / 1024,
132 obj->base.read_domains,
133 obj->base.write_domain,
134 i915_gem_request_get_seqno(obj->last_read_req),
135 i915_gem_request_get_seqno(obj->last_write_req),
136 i915_gem_request_get_seqno(obj->last_fenced_req),
137 i915_cache_level_str(to_i915(obj->base.dev), obj->cache_level),
138 obj->dirty ? " dirty" : "",
139 obj->madv == I915_MADV_DONTNEED ? " purgeable" : "");
140 if (obj->base.name)
141 seq_printf(m, " (name: %d)", obj->base.name);
142 list_for_each_entry(vma, &obj->vma_list, vma_link)
143 if (vma->pin_count > 0)
144 pin_count++;
145 seq_printf(m, " (pinned x %d)", pin_count);
146 if (obj->pin_display)
147 seq_printf(m, " (display)");
148 if (obj->fence_reg != I915_FENCE_REG_NONE)
149 seq_printf(m, " (fence: %d)", obj->fence_reg);
150 list_for_each_entry(vma, &obj->vma_list, vma_link) {
151 if (!i915_is_ggtt(vma->vm))
152 seq_puts(m, " (pp");
153 else
154 seq_puts(m, " (g");
155 seq_printf(m, "gtt offset: %08lx, size: %08lx, type: %u)",
156 vma->node.start, vma->node.size,
157 vma->ggtt_view.type);
158 }
159 if (obj->stolen)
160 seq_printf(m, " (stolen: %08lx)", obj->stolen->start);
161 if (obj->pin_mappable || obj->fault_mappable) {
162 char s[3], *t = s;
163 if (obj->pin_mappable)
164 *t++ = 'p';
165 if (obj->fault_mappable)
166 *t++ = 'f';
167 *t = '\0';
168 seq_printf(m, " (%s mappable)", s);
169 }
170 if (obj->last_read_req != NULL)
171 seq_printf(m, " (%s)",
172 i915_gem_request_get_ring(obj->last_read_req)->name);
173 if (obj->frontbuffer_bits)
174 seq_printf(m, " (frontbuffer: 0x%03x)", obj->frontbuffer_bits);
175}
176
177static void describe_ctx(struct seq_file *m, struct intel_context *ctx)
178{
179 seq_putc(m, ctx->legacy_hw_ctx.initialized ? 'I' : 'i');
180 seq_putc(m, ctx->remap_slice ? 'R' : 'r');
181 seq_putc(m, ' ');
182}
183
184static int i915_gem_object_list_info(struct seq_file *m, void *data)
185{
186 struct drm_info_node *node = m->private;
187 uintptr_t list = (uintptr_t) node->info_ent->data;
188 struct list_head *head;
189 struct drm_device *dev = node->minor->dev;
190 struct drm_i915_private *dev_priv = dev->dev_private;
191 struct i915_address_space *vm = &dev_priv->gtt.base;
192 struct i915_vma *vma;
193 size_t total_obj_size, total_gtt_size;
194 int count, ret;
195
196 ret = mutex_lock_interruptible(&dev->struct_mutex);
197 if (ret)
198 return ret;
199
200 /* FIXME: the user of this interface might want more than just GGTT */
201 switch (list) {
202 case ACTIVE_LIST:
203 seq_puts(m, "Active:\n");
204 head = &vm->active_list;
205 break;
206 case INACTIVE_LIST:
207 seq_puts(m, "Inactive:\n");
208 head = &vm->inactive_list;
209 break;
210 default:
211 mutex_unlock(&dev->struct_mutex);
212 return -EINVAL;
213 }
214
215 total_obj_size = total_gtt_size = count = 0;
216 list_for_each_entry(vma, head, mm_list) {
217 seq_printf(m, " ");
218 describe_obj(m, vma->obj);
219 seq_printf(m, "\n");
220 total_obj_size += vma->obj->base.size;
221 total_gtt_size += vma->node.size;
222 count++;
223 }
224 mutex_unlock(&dev->struct_mutex);
225
226 seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
227 count, total_obj_size, total_gtt_size);
228 return 0;
229}
230
231static int obj_rank_by_stolen(void *priv,
232 struct list_head *A, struct list_head *B)
233{
234 struct drm_i915_gem_object *a =
235 container_of(A, struct drm_i915_gem_object, obj_exec_link);
236 struct drm_i915_gem_object *b =
237 container_of(B, struct drm_i915_gem_object, obj_exec_link);
238
239 return a->stolen->start - b->stolen->start;
240}
241
242static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
243{
244 struct drm_info_node *node = m->private;
245 struct drm_device *dev = node->minor->dev;
246 struct drm_i915_private *dev_priv = dev->dev_private;
247 struct drm_i915_gem_object *obj;
248 size_t total_obj_size, total_gtt_size;
249 LIST_HEAD(stolen);
250 int count, ret;
251
252 ret = mutex_lock_interruptible(&dev->struct_mutex);
253 if (ret)
254 return ret;
255
256 total_obj_size = total_gtt_size = count = 0;
257 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
258 if (obj->stolen == NULL)
259 continue;
260
261 list_add(&obj->obj_exec_link, &stolen);
262
263 total_obj_size += obj->base.size;
264 total_gtt_size += i915_gem_obj_ggtt_size(obj);
265 count++;
266 }
267 list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) {
268 if (obj->stolen == NULL)
269 continue;
270
271 list_add(&obj->obj_exec_link, &stolen);
272
273 total_obj_size += obj->base.size;
274 count++;
275 }
276 list_sort(NULL, &stolen, obj_rank_by_stolen);
277 seq_puts(m, "Stolen:\n");
278 while (!list_empty(&stolen)) {
279 obj = list_first_entry(&stolen, typeof(*obj), obj_exec_link);
280 seq_puts(m, " ");
281 describe_obj(m, obj);
282 seq_putc(m, '\n');
283 list_del_init(&obj->obj_exec_link);
284 }
285 mutex_unlock(&dev->struct_mutex);
286
287 seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
288 count, total_obj_size, total_gtt_size);
289 return 0;
290}
291
292#define count_objects(list, member) do { \
293 list_for_each_entry(obj, list, member) { \
294 size += i915_gem_obj_ggtt_size(obj); \
295 ++count; \
296 if (obj->map_and_fenceable) { \
297 mappable_size += i915_gem_obj_ggtt_size(obj); \
298 ++mappable_count; \
299 } \
300 } \
301} while (0)
302
303struct file_stats {
304 struct drm_i915_file_private *file_priv;
305 int count;
306 size_t total, unbound;
307 size_t global, shared;
308 size_t active, inactive;
309};
310
311static int per_file_stats(int id, void *ptr, void *data)
312{
313 struct drm_i915_gem_object *obj = ptr;
314 struct file_stats *stats = data;
315 struct i915_vma *vma;
316
317 stats->count++;
318 stats->total += obj->base.size;
319
320 if (obj->base.name || obj->base.dma_buf)
321 stats->shared += obj->base.size;
322
323 if (USES_FULL_PPGTT(obj->base.dev)) {
324 list_for_each_entry(vma, &obj->vma_list, vma_link) {
325 struct i915_hw_ppgtt *ppgtt;
326
327 if (!drm_mm_node_allocated(&vma->node))
328 continue;
329
330 if (i915_is_ggtt(vma->vm)) {
331 stats->global += obj->base.size;
332 continue;
333 }
334
335 ppgtt = container_of(vma->vm, struct i915_hw_ppgtt, base);
336 if (ppgtt->file_priv != stats->file_priv)
337 continue;
338
339 if (obj->active) /* XXX per-vma statistic */
340 stats->active += obj->base.size;
341 else
342 stats->inactive += obj->base.size;
343
344 return 0;
345 }
346 } else {
347 if (i915_gem_obj_ggtt_bound(obj)) {
348 stats->global += obj->base.size;
349 if (obj->active)
350 stats->active += obj->base.size;
351 else
352 stats->inactive += obj->base.size;
353 return 0;
354 }
355 }
356
357 if (!list_empty(&obj->global_list))
358 stats->unbound += obj->base.size;
359
360 return 0;
361}
362
363#define print_file_stats(m, name, stats) \
364 seq_printf(m, "%s: %u objects, %zu bytes (%zu active, %zu inactive, %zu global, %zu shared, %zu unbound)\n", \
365 name, \
366 stats.count, \
367 stats.total, \
368 stats.active, \
369 stats.inactive, \
370 stats.global, \
371 stats.shared, \
372 stats.unbound)
373
374static void print_batch_pool_stats(struct seq_file *m,
375 struct drm_i915_private *dev_priv)
376{
377 struct drm_i915_gem_object *obj;
378 struct file_stats stats;
379
380 memset(&stats, 0, sizeof(stats));
381
382 list_for_each_entry(obj,
383 &dev_priv->mm.batch_pool.cache_list,
384 batch_pool_list)
385 per_file_stats(0, obj, &stats);
386
387 print_file_stats(m, "batch pool", stats);
388}
389
390#define count_vmas(list, member) do { \
391 list_for_each_entry(vma, list, member) { \
392 size += i915_gem_obj_ggtt_size(vma->obj); \
393 ++count; \
394 if (vma->obj->map_and_fenceable) { \
395 mappable_size += i915_gem_obj_ggtt_size(vma->obj); \
396 ++mappable_count; \
397 } \
398 } \
399} while (0)
400
401static int i915_gem_object_info(struct seq_file *m, void* data)
402{
403 struct drm_info_node *node = m->private;
404 struct drm_device *dev = node->minor->dev;
405 struct drm_i915_private *dev_priv = dev->dev_private;
406 u32 count, mappable_count, purgeable_count;
407 size_t size, mappable_size, purgeable_size;
408 struct drm_i915_gem_object *obj;
409 struct i915_address_space *vm = &dev_priv->gtt.base;
410 struct drm_file *file;
411 struct i915_vma *vma;
412 int ret;
413
414 ret = mutex_lock_interruptible(&dev->struct_mutex);
415 if (ret)
416 return ret;
417
418 seq_printf(m, "%u objects, %zu bytes\n",
419 dev_priv->mm.object_count,
420 dev_priv->mm.object_memory);
421
422 size = count = mappable_size = mappable_count = 0;
423 count_objects(&dev_priv->mm.bound_list, global_list);
424 seq_printf(m, "%u [%u] objects, %zu [%zu] bytes in gtt\n",
425 count, mappable_count, size, mappable_size);
426
427 size = count = mappable_size = mappable_count = 0;
428 count_vmas(&vm->active_list, mm_list);
429 seq_printf(m, " %u [%u] active objects, %zu [%zu] bytes\n",
430 count, mappable_count, size, mappable_size);
431
432 size = count = mappable_size = mappable_count = 0;
433 count_vmas(&vm->inactive_list, mm_list);
434 seq_printf(m, " %u [%u] inactive objects, %zu [%zu] bytes\n",
435 count, mappable_count, size, mappable_size);
436
437 size = count = purgeable_size = purgeable_count = 0;
438 list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) {
439 size += obj->base.size, ++count;
440 if (obj->madv == I915_MADV_DONTNEED)
441 purgeable_size += obj->base.size, ++purgeable_count;
442 }
443 seq_printf(m, "%u unbound objects, %zu bytes\n", count, size);
444
445 size = count = mappable_size = mappable_count = 0;
446 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
447 if (obj->fault_mappable) {
448 size += i915_gem_obj_ggtt_size(obj);
449 ++count;
450 }
451 if (obj->pin_mappable) {
452 mappable_size += i915_gem_obj_ggtt_size(obj);
453 ++mappable_count;
454 }
455 if (obj->madv == I915_MADV_DONTNEED) {
456 purgeable_size += obj->base.size;
457 ++purgeable_count;
458 }
459 }
460 seq_printf(m, "%u purgeable objects, %zu bytes\n",
461 purgeable_count, purgeable_size);
462 seq_printf(m, "%u pinned mappable objects, %zu bytes\n",
463 mappable_count, mappable_size);
464 seq_printf(m, "%u fault mappable objects, %zu bytes\n",
465 count, size);
466
467 seq_printf(m, "%zu [%lu] gtt total\n",
468 dev_priv->gtt.base.total,
469 dev_priv->gtt.mappable_end - dev_priv->gtt.base.start);
470
471 seq_putc(m, '\n');
472 print_batch_pool_stats(m, dev_priv);
473
474 seq_putc(m, '\n');
475 list_for_each_entry_reverse(file, &dev->filelist, lhead) {
476 struct file_stats stats;
477 struct task_struct *task;
478
479 memset(&stats, 0, sizeof(stats));
480 stats.file_priv = file->driver_priv;
481 spin_lock(&file->table_lock);
482 idr_for_each(&file->object_idr, per_file_stats, &stats);
483 spin_unlock(&file->table_lock);
484 /*
485 * Although we have a valid reference on file->pid, that does
486 * not guarantee that the task_struct who called get_pid() is
487 * still alive (e.g. get_pid(current) => fork() => exit()).
488 * Therefore, we need to protect this ->comm access using RCU.
489 */
490 rcu_read_lock();
491 task = pid_task(file->pid, PIDTYPE_PID);
492 print_file_stats(m, task ? task->comm : "<unknown>", stats);
493 rcu_read_unlock();
494 }
495
496 mutex_unlock(&dev->struct_mutex);
497
498 return 0;
499}
500
501static int i915_gem_gtt_info(struct seq_file *m, void *data)
502{
503 struct drm_info_node *node = m->private;
504 struct drm_device *dev = node->minor->dev;
505 uintptr_t list = (uintptr_t) node->info_ent->data;
506 struct drm_i915_private *dev_priv = dev->dev_private;
507 struct drm_i915_gem_object *obj;
508 size_t total_obj_size, total_gtt_size;
509 int count, ret;
510
511 ret = mutex_lock_interruptible(&dev->struct_mutex);
512 if (ret)
513 return ret;
514
515 total_obj_size = total_gtt_size = count = 0;
516 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
517 if (list == PINNED_LIST && !i915_gem_obj_is_pinned(obj))
518 continue;
519
520 seq_puts(m, " ");
521 describe_obj(m, obj);
522 seq_putc(m, '\n');
523 total_obj_size += obj->base.size;
524 total_gtt_size += i915_gem_obj_ggtt_size(obj);
525 count++;
526 }
527
528 mutex_unlock(&dev->struct_mutex);
529
530 seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
531 count, total_obj_size, total_gtt_size);
532
533 return 0;
534}
535
536static int i915_gem_pageflip_info(struct seq_file *m, void *data)
537{
538 struct drm_info_node *node = m->private;
539 struct drm_device *dev = node->minor->dev;
540 struct drm_i915_private *dev_priv = dev->dev_private;
541 struct intel_crtc *crtc;
542 int ret;
543
544 ret = mutex_lock_interruptible(&dev->struct_mutex);
545 if (ret)
546 return ret;
547
548 for_each_intel_crtc(dev, crtc) {
549 const char pipe = pipe_name(crtc->pipe);
550 const char plane = plane_name(crtc->plane);
551 struct intel_unpin_work *work;
552
553 spin_lock_irq(&dev->event_lock);
554 work = crtc->unpin_work;
555 if (work == NULL) {
556 seq_printf(m, "No flip due on pipe %c (plane %c)\n",
557 pipe, plane);
558 } else {
559 u32 addr;
560
561 if (atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
562 seq_printf(m, "Flip queued on pipe %c (plane %c)\n",
563 pipe, plane);
564 } else {
565 seq_printf(m, "Flip pending (waiting for vsync) on pipe %c (plane %c)\n",
566 pipe, plane);
567 }
568 if (work->flip_queued_req) {
569 struct intel_engine_cs *ring =
570 i915_gem_request_get_ring(work->flip_queued_req);
571
572 seq_printf(m, "Flip queued on %s at seqno %x, next seqno %x [current breadcrumb %x], completed? %d\n",
573 ring->name,
574 i915_gem_request_get_seqno(work->flip_queued_req),
575 dev_priv->next_seqno,
576 ring->get_seqno(ring, true),
577 i915_gem_request_completed(work->flip_queued_req, true));
578 } else
579 seq_printf(m, "Flip not associated with any ring\n");
580 seq_printf(m, "Flip queued on frame %d, (was ready on frame %d), now %d\n",
581 work->flip_queued_vblank,
582 work->flip_ready_vblank,
583 drm_crtc_vblank_count(&crtc->base));
584 if (work->enable_stall_check)
585 seq_puts(m, "Stall check enabled, ");
586 else
587 seq_puts(m, "Stall check waiting for page flip ioctl, ");
588 seq_printf(m, "%d prepares\n", atomic_read(&work->pending));
589
590 if (INTEL_INFO(dev)->gen >= 4)
591 addr = I915_HI_DISPBASE(I915_READ(DSPSURF(crtc->plane)));
592 else
593 addr = I915_READ(DSPADDR(crtc->plane));
594 seq_printf(m, "Current scanout address 0x%08x\n", addr);
595
596 if (work->pending_flip_obj) {
597 seq_printf(m, "New framebuffer address 0x%08lx\n", (long)work->gtt_offset);
598 seq_printf(m, "MMIO update completed? %d\n", addr == work->gtt_offset);
599 }
600 }
601 spin_unlock_irq(&dev->event_lock);
602 }
603
604 mutex_unlock(&dev->struct_mutex);
605
606 return 0;
607}
608
609static int i915_gem_batch_pool_info(struct seq_file *m, void *data)
610{
611 struct drm_info_node *node = m->private;
612 struct drm_device *dev = node->minor->dev;
613 struct drm_i915_private *dev_priv = dev->dev_private;
614 struct drm_i915_gem_object *obj;
615 int count = 0;
616 int ret;
617
618 ret = mutex_lock_interruptible(&dev->struct_mutex);
619 if (ret)
620 return ret;
621
622 seq_puts(m, "cache:\n");
623 list_for_each_entry(obj,
624 &dev_priv->mm.batch_pool.cache_list,
625 batch_pool_list) {
626 seq_puts(m, " ");
627 describe_obj(m, obj);
628 seq_putc(m, '\n');
629 count++;
630 }
631
632 seq_printf(m, "total: %d\n", count);
633
634 mutex_unlock(&dev->struct_mutex);
635
636 return 0;
637}
638
639static int i915_gem_request_info(struct seq_file *m, void *data)
640{
641 struct drm_info_node *node = m->private;
642 struct drm_device *dev = node->minor->dev;
643 struct drm_i915_private *dev_priv = dev->dev_private;
644 struct intel_engine_cs *ring;
645 struct drm_i915_gem_request *gem_request;
646 int ret, count, i;
647
648 ret = mutex_lock_interruptible(&dev->struct_mutex);
649 if (ret)
650 return ret;
651
652 count = 0;
653 for_each_ring(ring, dev_priv, i) {
654 if (list_empty(&ring->request_list))
655 continue;
656
657 seq_printf(m, "%s requests:\n", ring->name);
658 list_for_each_entry(gem_request,
659 &ring->request_list,
660 list) {
661 seq_printf(m, " %x @ %d\n",
662 gem_request->seqno,
663 (int) (jiffies - gem_request->emitted_jiffies));
664 }
665 count++;
666 }
667 mutex_unlock(&dev->struct_mutex);
668
669 if (count == 0)
670 seq_puts(m, "No requests\n");
671
672 return 0;
673}
674
675static void i915_ring_seqno_info(struct seq_file *m,
676 struct intel_engine_cs *ring)
677{
678 if (ring->get_seqno) {
679 seq_printf(m, "Current sequence (%s): %x\n",
680 ring->name, ring->get_seqno(ring, false));
681 }
682}
683
684static int i915_gem_seqno_info(struct seq_file *m, void *data)
685{
686 struct drm_info_node *node = m->private;
687 struct drm_device *dev = node->minor->dev;
688 struct drm_i915_private *dev_priv = dev->dev_private;
689 struct intel_engine_cs *ring;
690 int ret, i;
691
692 ret = mutex_lock_interruptible(&dev->struct_mutex);
693 if (ret)
694 return ret;
695 intel_runtime_pm_get(dev_priv);
696
697 for_each_ring(ring, dev_priv, i)
698 i915_ring_seqno_info(m, ring);
699
700 intel_runtime_pm_put(dev_priv);
701 mutex_unlock(&dev->struct_mutex);
702
703 return 0;
704}
705
706
707static int i915_interrupt_info(struct seq_file *m, void *data)
708{
709 struct drm_info_node *node = m->private;
710 struct drm_device *dev = node->minor->dev;
711 struct drm_i915_private *dev_priv = dev->dev_private;
712 struct intel_engine_cs *ring;
713 int ret, i, pipe;
714
715 ret = mutex_lock_interruptible(&dev->struct_mutex);
716 if (ret)
717 return ret;
718 intel_runtime_pm_get(dev_priv);
719
720 if (IS_CHERRYVIEW(dev)) {
721 seq_printf(m, "Master Interrupt Control:\t%08x\n",
722 I915_READ(GEN8_MASTER_IRQ));
723
724 seq_printf(m, "Display IER:\t%08x\n",
725 I915_READ(VLV_IER));
726 seq_printf(m, "Display IIR:\t%08x\n",
727 I915_READ(VLV_IIR));
728 seq_printf(m, "Display IIR_RW:\t%08x\n",
729 I915_READ(VLV_IIR_RW));
730 seq_printf(m, "Display IMR:\t%08x\n",
731 I915_READ(VLV_IMR));
732 for_each_pipe(dev_priv, pipe)
733 seq_printf(m, "Pipe %c stat:\t%08x\n",
734 pipe_name(pipe),
735 I915_READ(PIPESTAT(pipe)));
736
737 seq_printf(m, "Port hotplug:\t%08x\n",
738 I915_READ(PORT_HOTPLUG_EN));
739 seq_printf(m, "DPFLIPSTAT:\t%08x\n",
740 I915_READ(VLV_DPFLIPSTAT));
741 seq_printf(m, "DPINVGTT:\t%08x\n",
742 I915_READ(DPINVGTT));
743
744 for (i = 0; i < 4; i++) {
745 seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
746 i, I915_READ(GEN8_GT_IMR(i)));
747 seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
748 i, I915_READ(GEN8_GT_IIR(i)));
749 seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
750 i, I915_READ(GEN8_GT_IER(i)));
751 }
752
753 seq_printf(m, "PCU interrupt mask:\t%08x\n",
754 I915_READ(GEN8_PCU_IMR));
755 seq_printf(m, "PCU interrupt identity:\t%08x\n",
756 I915_READ(GEN8_PCU_IIR));
757 seq_printf(m, "PCU interrupt enable:\t%08x\n",
758 I915_READ(GEN8_PCU_IER));
759 } else if (INTEL_INFO(dev)->gen >= 8) {
760 seq_printf(m, "Master Interrupt Control:\t%08x\n",
761 I915_READ(GEN8_MASTER_IRQ));
762
763 for (i = 0; i < 4; i++) {
764 seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
765 i, I915_READ(GEN8_GT_IMR(i)));
766 seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
767 i, I915_READ(GEN8_GT_IIR(i)));
768 seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
769 i, I915_READ(GEN8_GT_IER(i)));
770 }
771
772 for_each_pipe(dev_priv, pipe) {
773 if (!intel_display_power_is_enabled(dev_priv,
774 POWER_DOMAIN_PIPE(pipe))) {
775 seq_printf(m, "Pipe %c power disabled\n",
776 pipe_name(pipe));
777 continue;
778 }
779 seq_printf(m, "Pipe %c IMR:\t%08x\n",
780 pipe_name(pipe),
781 I915_READ(GEN8_DE_PIPE_IMR(pipe)));
782 seq_printf(m, "Pipe %c IIR:\t%08x\n",
783 pipe_name(pipe),
784 I915_READ(GEN8_DE_PIPE_IIR(pipe)));
785 seq_printf(m, "Pipe %c IER:\t%08x\n",
786 pipe_name(pipe),
787 I915_READ(GEN8_DE_PIPE_IER(pipe)));
788 }
789
790 seq_printf(m, "Display Engine port interrupt mask:\t%08x\n",
791 I915_READ(GEN8_DE_PORT_IMR));
792 seq_printf(m, "Display Engine port interrupt identity:\t%08x\n",
793 I915_READ(GEN8_DE_PORT_IIR));
794 seq_printf(m, "Display Engine port interrupt enable:\t%08x\n",
795 I915_READ(GEN8_DE_PORT_IER));
796
797 seq_printf(m, "Display Engine misc interrupt mask:\t%08x\n",
798 I915_READ(GEN8_DE_MISC_IMR));
799 seq_printf(m, "Display Engine misc interrupt identity:\t%08x\n",
800 I915_READ(GEN8_DE_MISC_IIR));
801 seq_printf(m, "Display Engine misc interrupt enable:\t%08x\n",
802 I915_READ(GEN8_DE_MISC_IER));
803
804 seq_printf(m, "PCU interrupt mask:\t%08x\n",
805 I915_READ(GEN8_PCU_IMR));
806 seq_printf(m, "PCU interrupt identity:\t%08x\n",
807 I915_READ(GEN8_PCU_IIR));
808 seq_printf(m, "PCU interrupt enable:\t%08x\n",
809 I915_READ(GEN8_PCU_IER));
810 } else if (IS_VALLEYVIEW(dev)) {
811 seq_printf(m, "Display IER:\t%08x\n",
812 I915_READ(VLV_IER));
813 seq_printf(m, "Display IIR:\t%08x\n",
814 I915_READ(VLV_IIR));
815 seq_printf(m, "Display IIR_RW:\t%08x\n",
816 I915_READ(VLV_IIR_RW));
817 seq_printf(m, "Display IMR:\t%08x\n",
818 I915_READ(VLV_IMR));
819 for_each_pipe(dev_priv, pipe)
820 seq_printf(m, "Pipe %c stat:\t%08x\n",
821 pipe_name(pipe),
822 I915_READ(PIPESTAT(pipe)));
823
824 seq_printf(m, "Master IER:\t%08x\n",
825 I915_READ(VLV_MASTER_IER));
826
827 seq_printf(m, "Render IER:\t%08x\n",
828 I915_READ(GTIER));
829 seq_printf(m, "Render IIR:\t%08x\n",
830 I915_READ(GTIIR));
831 seq_printf(m, "Render IMR:\t%08x\n",
832 I915_READ(GTIMR));
833
834 seq_printf(m, "PM IER:\t\t%08x\n",
835 I915_READ(GEN6_PMIER));
836 seq_printf(m, "PM IIR:\t\t%08x\n",
837 I915_READ(GEN6_PMIIR));
838 seq_printf(m, "PM IMR:\t\t%08x\n",
839 I915_READ(GEN6_PMIMR));
840
841 seq_printf(m, "Port hotplug:\t%08x\n",
842 I915_READ(PORT_HOTPLUG_EN));
843 seq_printf(m, "DPFLIPSTAT:\t%08x\n",
844 I915_READ(VLV_DPFLIPSTAT));
845 seq_printf(m, "DPINVGTT:\t%08x\n",
846 I915_READ(DPINVGTT));
847
848 } else if (!HAS_PCH_SPLIT(dev)) {
849 seq_printf(m, "Interrupt enable: %08x\n",
850 I915_READ(IER));
851 seq_printf(m, "Interrupt identity: %08x\n",
852 I915_READ(IIR));
853 seq_printf(m, "Interrupt mask: %08x\n",
854 I915_READ(IMR));
855 for_each_pipe(dev_priv, pipe)
856 seq_printf(m, "Pipe %c stat: %08x\n",
857 pipe_name(pipe),
858 I915_READ(PIPESTAT(pipe)));
859 } else {
860 seq_printf(m, "North Display Interrupt enable: %08x\n",
861 I915_READ(DEIER));
862 seq_printf(m, "North Display Interrupt identity: %08x\n",
863 I915_READ(DEIIR));
864 seq_printf(m, "North Display Interrupt mask: %08x\n",
865 I915_READ(DEIMR));
866 seq_printf(m, "South Display Interrupt enable: %08x\n",
867 I915_READ(SDEIER));
868 seq_printf(m, "South Display Interrupt identity: %08x\n",
869 I915_READ(SDEIIR));
870 seq_printf(m, "South Display Interrupt mask: %08x\n",
871 I915_READ(SDEIMR));
872 seq_printf(m, "Graphics Interrupt enable: %08x\n",
873 I915_READ(GTIER));
874 seq_printf(m, "Graphics Interrupt identity: %08x\n",
875 I915_READ(GTIIR));
876 seq_printf(m, "Graphics Interrupt mask: %08x\n",
877 I915_READ(GTIMR));
878 }
879 for_each_ring(ring, dev_priv, i) {
880 if (INTEL_INFO(dev)->gen >= 6) {
881 seq_printf(m,
882 "Graphics Interrupt mask (%s): %08x\n",
883 ring->name, I915_READ_IMR(ring));
884 }
885 i915_ring_seqno_info(m, ring);
886 }
887 intel_runtime_pm_put(dev_priv);
888 mutex_unlock(&dev->struct_mutex);
889
890 return 0;
891}
892
893static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
894{
895 struct drm_info_node *node = m->private;
896 struct drm_device *dev = node->minor->dev;
897 struct drm_i915_private *dev_priv = dev->dev_private;
898 int i, ret;
899
900 ret = mutex_lock_interruptible(&dev->struct_mutex);
901 if (ret)
902 return ret;
903
904 seq_printf(m, "Reserved fences = %d\n", dev_priv->fence_reg_start);
905 seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
906 for (i = 0; i < dev_priv->num_fence_regs; i++) {
907 struct drm_i915_gem_object *obj = dev_priv->fence_regs[i].obj;
908
909 seq_printf(m, "Fence %d, pin count = %d, object = ",
910 i, dev_priv->fence_regs[i].pin_count);
911 if (obj == NULL)
912 seq_puts(m, "unused");
913 else
914 describe_obj(m, obj);
915 seq_putc(m, '\n');
916 }
917
918 mutex_unlock(&dev->struct_mutex);
919 return 0;
920}
921
922static int i915_hws_info(struct seq_file *m, void *data)
923{
924 struct drm_info_node *node = m->private;
925 struct drm_device *dev = node->minor->dev;
926 struct drm_i915_private *dev_priv = dev->dev_private;
927 struct intel_engine_cs *ring;
928 const u32 *hws;
929 int i;
930
931 ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
932 hws = ring->status_page.page_addr;
933 if (hws == NULL)
934 return 0;
935
936 for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
937 seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
938 i * 4,
939 hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
940 }
941 return 0;
942}
943
944static ssize_t
945i915_error_state_write(struct file *filp,
946 const char __user *ubuf,
947 size_t cnt,
948 loff_t *ppos)
949{
950 struct i915_error_state_file_priv *error_priv = filp->private_data;
951 struct drm_device *dev = error_priv->dev;
952 int ret;
953
954 DRM_DEBUG_DRIVER("Resetting error state\n");
955
956 ret = mutex_lock_interruptible(&dev->struct_mutex);
957 if (ret)
958 return ret;
959
960 i915_destroy_error_state(dev);
961 mutex_unlock(&dev->struct_mutex);
962
963 return cnt;
964}
965
966static int i915_error_state_open(struct inode *inode, struct file *file)
967{
968 struct drm_device *dev = inode->i_private;
969 struct i915_error_state_file_priv *error_priv;
970
971 error_priv = kzalloc(sizeof(*error_priv), GFP_KERNEL);
972 if (!error_priv)
973 return -ENOMEM;
974
975 error_priv->dev = dev;
976
977 i915_error_state_get(dev, error_priv);
978
979 file->private_data = error_priv;
980
981 return 0;
982}
983
984static int i915_error_state_release(struct inode *inode, struct file *file)
985{
986 struct i915_error_state_file_priv *error_priv = file->private_data;
987
988 i915_error_state_put(error_priv);
989 kfree(error_priv);
990
991 return 0;
992}
993
994static ssize_t i915_error_state_read(struct file *file, char __user *userbuf,
995 size_t count, loff_t *pos)
996{
997 struct i915_error_state_file_priv *error_priv = file->private_data;
998 struct drm_i915_error_state_buf error_str;
999 loff_t tmp_pos = 0;
1000 ssize_t ret_count = 0;
1001 int ret;
1002
1003 ret = i915_error_state_buf_init(&error_str, to_i915(error_priv->dev), count, *pos);
1004 if (ret)
1005 return ret;
1006
1007 ret = i915_error_state_to_str(&error_str, error_priv);
1008 if (ret)
1009 goto out;
1010
1011 ret_count = simple_read_from_buffer(userbuf, count, &tmp_pos,
1012 error_str.buf,
1013 error_str.bytes);
1014
1015 if (ret_count < 0)
1016 ret = ret_count;
1017 else
1018 *pos = error_str.start + ret_count;
1019out:
1020 i915_error_state_buf_release(&error_str);
1021 return ret ?: ret_count;
1022}
1023
1024static const struct file_operations i915_error_state_fops = {
1025 .owner = THIS_MODULE,
1026 .open = i915_error_state_open,
1027 .read = i915_error_state_read,
1028 .write = i915_error_state_write,
1029 .llseek = default_llseek,
1030 .release = i915_error_state_release,
1031};
1032
1033static int
1034i915_next_seqno_get(void *data, u64 *val)
1035{
1036 struct drm_device *dev = data;
1037 struct drm_i915_private *dev_priv = dev->dev_private;
1038 int ret;
1039
1040 ret = mutex_lock_interruptible(&dev->struct_mutex);
1041 if (ret)
1042 return ret;
1043
1044 *val = dev_priv->next_seqno;
1045 mutex_unlock(&dev->struct_mutex);
1046
1047 return 0;
1048}
1049
1050static int
1051i915_next_seqno_set(void *data, u64 val)
1052{
1053 struct drm_device *dev = data;
1054 int ret;
1055
1056 ret = mutex_lock_interruptible(&dev->struct_mutex);
1057 if (ret)
1058 return ret;
1059
1060 ret = i915_gem_set_seqno(dev, val);
1061 mutex_unlock(&dev->struct_mutex);
1062
1063 return ret;
1064}
1065
1066DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops,
1067 i915_next_seqno_get, i915_next_seqno_set,
1068 "0x%llx\n");
1069
1070static int i915_frequency_info(struct seq_file *m, void *unused)
1071{
1072 struct drm_info_node *node = m->private;
1073 struct drm_device *dev = node->minor->dev;
1074 struct drm_i915_private *dev_priv = dev->dev_private;
1075 int ret = 0;
1076
1077 intel_runtime_pm_get(dev_priv);
1078
1079 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
1080
1081 if (IS_GEN5(dev)) {
1082 u16 rgvswctl = I915_READ16(MEMSWCTL);
1083 u16 rgvstat = I915_READ16(MEMSTAT_ILK);
1084
1085 seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
1086 seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
1087 seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
1088 MEMSTAT_VID_SHIFT);
1089 seq_printf(m, "Current P-state: %d\n",
1090 (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
1091 } else if (IS_GEN6(dev) || (IS_GEN7(dev) && !IS_VALLEYVIEW(dev)) ||
1092 IS_BROADWELL(dev)) {
1093 u32 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
1094 u32 rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
1095 u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
1096 u32 rpmodectl, rpinclimit, rpdeclimit;
1097 u32 rpstat, cagf, reqf;
1098 u32 rpupei, rpcurup, rpprevup;
1099 u32 rpdownei, rpcurdown, rpprevdown;
1100 u32 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask;
1101 int max_freq;
1102
1103 /* RPSTAT1 is in the GT power well */
1104 ret = mutex_lock_interruptible(&dev->struct_mutex);
1105 if (ret)
1106 goto out;
1107
1108 intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
1109
1110 reqf = I915_READ(GEN6_RPNSWREQ);
1111 reqf &= ~GEN6_TURBO_DISABLE;
1112 if (IS_HASWELL(dev) || IS_BROADWELL(dev))
1113 reqf >>= 24;
1114 else
1115 reqf >>= 25;
1116 reqf = intel_gpu_freq(dev_priv, reqf);
1117
1118 rpmodectl = I915_READ(GEN6_RP_CONTROL);
1119 rpinclimit = I915_READ(GEN6_RP_UP_THRESHOLD);
1120 rpdeclimit = I915_READ(GEN6_RP_DOWN_THRESHOLD);
1121
1122 rpstat = I915_READ(GEN6_RPSTAT1);
1123 rpupei = I915_READ(GEN6_RP_CUR_UP_EI);
1124 rpcurup = I915_READ(GEN6_RP_CUR_UP);
1125 rpprevup = I915_READ(GEN6_RP_PREV_UP);
1126 rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI);
1127 rpcurdown = I915_READ(GEN6_RP_CUR_DOWN);
1128 rpprevdown = I915_READ(GEN6_RP_PREV_DOWN);
1129 if (IS_HASWELL(dev) || IS_BROADWELL(dev))
1130 cagf = (rpstat & HSW_CAGF_MASK) >> HSW_CAGF_SHIFT;
1131 else
1132 cagf = (rpstat & GEN6_CAGF_MASK) >> GEN6_CAGF_SHIFT;
1133 cagf = intel_gpu_freq(dev_priv, cagf);
1134
1135 intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
1136 mutex_unlock(&dev->struct_mutex);
1137
1138 if (IS_GEN6(dev) || IS_GEN7(dev)) {
1139 pm_ier = I915_READ(GEN6_PMIER);
1140 pm_imr = I915_READ(GEN6_PMIMR);
1141 pm_isr = I915_READ(GEN6_PMISR);
1142 pm_iir = I915_READ(GEN6_PMIIR);
1143 pm_mask = I915_READ(GEN6_PMINTRMSK);
1144 } else {
1145 pm_ier = I915_READ(GEN8_GT_IER(2));
1146 pm_imr = I915_READ(GEN8_GT_IMR(2));
1147 pm_isr = I915_READ(GEN8_GT_ISR(2));
1148 pm_iir = I915_READ(GEN8_GT_IIR(2));
1149 pm_mask = I915_READ(GEN6_PMINTRMSK);
1150 }
1151 seq_printf(m, "PM IER=0x%08x IMR=0x%08x ISR=0x%08x IIR=0x%08x, MASK=0x%08x\n",
1152 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask);
1153 seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
1154 seq_printf(m, "Render p-state ratio: %d\n",
1155 (gt_perf_status & 0xff00) >> 8);
1156 seq_printf(m, "Render p-state VID: %d\n",
1157 gt_perf_status & 0xff);
1158 seq_printf(m, "Render p-state limit: %d\n",
1159 rp_state_limits & 0xff);
1160 seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
1161 seq_printf(m, "RPMODECTL: 0x%08x\n", rpmodectl);
1162 seq_printf(m, "RPINCLIMIT: 0x%08x\n", rpinclimit);
1163 seq_printf(m, "RPDECLIMIT: 0x%08x\n", rpdeclimit);
1164 seq_printf(m, "RPNSWREQ: %dMHz\n", reqf);
1165 seq_printf(m, "CAGF: %dMHz\n", cagf);
1166 seq_printf(m, "RP CUR UP EI: %dus\n", rpupei &
1167 GEN6_CURICONT_MASK);
1168 seq_printf(m, "RP CUR UP: %dus\n", rpcurup &
1169 GEN6_CURBSYTAVG_MASK);
1170 seq_printf(m, "RP PREV UP: %dus\n", rpprevup &
1171 GEN6_CURBSYTAVG_MASK);
1172 seq_printf(m, "RP CUR DOWN EI: %dus\n", rpdownei &
1173 GEN6_CURIAVG_MASK);
1174 seq_printf(m, "RP CUR DOWN: %dus\n", rpcurdown &
1175 GEN6_CURBSYTAVG_MASK);
1176 seq_printf(m, "RP PREV DOWN: %dus\n", rpprevdown &
1177 GEN6_CURBSYTAVG_MASK);
1178
1179 max_freq = (rp_state_cap & 0xff0000) >> 16;
1180 seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
1181 intel_gpu_freq(dev_priv, max_freq));
1182
1183 max_freq = (rp_state_cap & 0xff00) >> 8;
1184 seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
1185 intel_gpu_freq(dev_priv, max_freq));
1186
1187 max_freq = rp_state_cap & 0xff;
1188 seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
1189 intel_gpu_freq(dev_priv, max_freq));
1190
1191 seq_printf(m, "Max overclocked frequency: %dMHz\n",
1192 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
1193 } else if (IS_VALLEYVIEW(dev)) {
1194 u32 freq_sts;
1195
1196 mutex_lock(&dev_priv->rps.hw_lock);
1197 freq_sts = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
1198 seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
1199 seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
1200
1201 seq_printf(m, "max GPU freq: %d MHz\n",
1202 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
1203
1204 seq_printf(m, "min GPU freq: %d MHz\n",
1205 intel_gpu_freq(dev_priv, dev_priv->rps.min_freq));
1206
1207 seq_printf(m,
1208 "efficient (RPe) frequency: %d MHz\n",
1209 intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
1210
1211 seq_printf(m, "current GPU freq: %d MHz\n",
1212 intel_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff));
1213 mutex_unlock(&dev_priv->rps.hw_lock);
1214 } else {
1215 seq_puts(m, "no P-state info available\n");
1216 }
1217
1218out:
1219 intel_runtime_pm_put(dev_priv);
1220 return ret;
1221}
1222
1223static int i915_hangcheck_info(struct seq_file *m, void *unused)
1224{
1225 struct drm_info_node *node = m->private;
1226 struct drm_i915_private *dev_priv = to_i915(node->minor->dev);
1227 struct intel_engine_cs *ring;
1228 int i;
1229
1230 if (!i915.enable_hangcheck) {
1231 seq_printf(m, "Hangcheck disabled\n");
1232 return 0;
1233 }
1234
1235 if (delayed_work_pending(&dev_priv->gpu_error.hangcheck_work)) {
1236 seq_printf(m, "Hangcheck active, fires in %dms\n",
1237 jiffies_to_msecs(dev_priv->gpu_error.hangcheck_work.timer.expires -
1238 jiffies));
1239 } else
1240 seq_printf(m, "Hangcheck inactive\n");
1241
1242 for_each_ring(ring, dev_priv, i) {
1243 seq_printf(m, "%s:\n", ring->name);
1244 seq_printf(m, "\tseqno = %x [current %x]\n",
1245 ring->hangcheck.seqno, ring->get_seqno(ring, false));
1246 seq_printf(m, "\taction = %d\n", ring->hangcheck.action);
1247 seq_printf(m, "\tscore = %d\n", ring->hangcheck.score);
1248 seq_printf(m, "\tACTHD = 0x%08llx [current 0x%08llx]\n",
1249 (long long)ring->hangcheck.acthd,
1250 (long long)intel_ring_get_active_head(ring));
1251 seq_printf(m, "\tmax ACTHD = 0x%08llx\n",
1252 (long long)ring->hangcheck.max_acthd);
1253 }
1254
1255 return 0;
1256}
1257
1258static int ironlake_drpc_info(struct seq_file *m)
1259{
1260 struct drm_info_node *node = m->private;
1261 struct drm_device *dev = node->minor->dev;
1262 struct drm_i915_private *dev_priv = dev->dev_private;
1263 u32 rgvmodectl, rstdbyctl;
1264 u16 crstandvid;
1265 int ret;
1266
1267 ret = mutex_lock_interruptible(&dev->struct_mutex);
1268 if (ret)
1269 return ret;
1270 intel_runtime_pm_get(dev_priv);
1271
1272 rgvmodectl = I915_READ(MEMMODECTL);
1273 rstdbyctl = I915_READ(RSTDBYCTL);
1274 crstandvid = I915_READ16(CRSTANDVID);
1275
1276 intel_runtime_pm_put(dev_priv);
1277 mutex_unlock(&dev->struct_mutex);
1278
1279 seq_printf(m, "HD boost: %s\n", (rgvmodectl & MEMMODE_BOOST_EN) ?
1280 "yes" : "no");
1281 seq_printf(m, "Boost freq: %d\n",
1282 (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
1283 MEMMODE_BOOST_FREQ_SHIFT);
1284 seq_printf(m, "HW control enabled: %s\n",
1285 rgvmodectl & MEMMODE_HWIDLE_EN ? "yes" : "no");
1286 seq_printf(m, "SW control enabled: %s\n",
1287 rgvmodectl & MEMMODE_SWMODE_EN ? "yes" : "no");
1288 seq_printf(m, "Gated voltage change: %s\n",
1289 rgvmodectl & MEMMODE_RCLK_GATE ? "yes" : "no");
1290 seq_printf(m, "Starting frequency: P%d\n",
1291 (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
1292 seq_printf(m, "Max P-state: P%d\n",
1293 (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
1294 seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
1295 seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
1296 seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
1297 seq_printf(m, "Render standby enabled: %s\n",
1298 (rstdbyctl & RCX_SW_EXIT) ? "no" : "yes");
1299 seq_puts(m, "Current RS state: ");
1300 switch (rstdbyctl & RSX_STATUS_MASK) {
1301 case RSX_STATUS_ON:
1302 seq_puts(m, "on\n");
1303 break;
1304 case RSX_STATUS_RC1:
1305 seq_puts(m, "RC1\n");
1306 break;
1307 case RSX_STATUS_RC1E:
1308 seq_puts(m, "RC1E\n");
1309 break;
1310 case RSX_STATUS_RS1:
1311 seq_puts(m, "RS1\n");
1312 break;
1313 case RSX_STATUS_RS2:
1314 seq_puts(m, "RS2 (RC6)\n");
1315 break;
1316 case RSX_STATUS_RS3:
1317 seq_puts(m, "RC3 (RC6+)\n");
1318 break;
1319 default:
1320 seq_puts(m, "unknown\n");
1321 break;
1322 }
1323
1324 return 0;
1325}
1326
1327static int i915_forcewake_domains(struct seq_file *m, void *data)
1328{
1329 struct drm_info_node *node = m->private;
1330 struct drm_device *dev = node->minor->dev;
1331 struct drm_i915_private *dev_priv = dev->dev_private;
1332 struct intel_uncore_forcewake_domain *fw_domain;
1333 int i;
1334
1335 spin_lock_irq(&dev_priv->uncore.lock);
1336 for_each_fw_domain(fw_domain, dev_priv, i) {
1337 seq_printf(m, "%s.wake_count = %u\n",
1338 intel_uncore_forcewake_domain_to_str(i),
1339 fw_domain->wake_count);
1340 }
1341 spin_unlock_irq(&dev_priv->uncore.lock);
1342
1343 return 0;
1344}
1345
1346static int vlv_drpc_info(struct seq_file *m)
1347{
1348 struct drm_info_node *node = m->private;
1349 struct drm_device *dev = node->minor->dev;
1350 struct drm_i915_private *dev_priv = dev->dev_private;
1351 u32 rpmodectl1, rcctl1, pw_status;
1352
1353 intel_runtime_pm_get(dev_priv);
1354
1355 pw_status = I915_READ(VLV_GTLC_PW_STATUS);
1356 rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
1357 rcctl1 = I915_READ(GEN6_RC_CONTROL);
1358
1359 intel_runtime_pm_put(dev_priv);
1360
1361 seq_printf(m, "Video Turbo Mode: %s\n",
1362 yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
1363 seq_printf(m, "Turbo enabled: %s\n",
1364 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1365 seq_printf(m, "HW control enabled: %s\n",
1366 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1367 seq_printf(m, "SW control enabled: %s\n",
1368 yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
1369 GEN6_RP_MEDIA_SW_MODE));
1370 seq_printf(m, "RC6 Enabled: %s\n",
1371 yesno(rcctl1 & (GEN7_RC_CTL_TO_MODE |
1372 GEN6_RC_CTL_EI_MODE(1))));
1373 seq_printf(m, "Render Power Well: %s\n",
1374 (pw_status & VLV_GTLC_PW_RENDER_STATUS_MASK) ? "Up" : "Down");
1375 seq_printf(m, "Media Power Well: %s\n",
1376 (pw_status & VLV_GTLC_PW_MEDIA_STATUS_MASK) ? "Up" : "Down");
1377
1378 seq_printf(m, "Render RC6 residency since boot: %u\n",
1379 I915_READ(VLV_GT_RENDER_RC6));
1380 seq_printf(m, "Media RC6 residency since boot: %u\n",
1381 I915_READ(VLV_GT_MEDIA_RC6));
1382
1383 return i915_forcewake_domains(m, NULL);
1384}
1385
1386static int gen6_drpc_info(struct seq_file *m)
1387{
1388 struct drm_info_node *node = m->private;
1389 struct drm_device *dev = node->minor->dev;
1390 struct drm_i915_private *dev_priv = dev->dev_private;
1391 u32 rpmodectl1, gt_core_status, rcctl1, rc6vids = 0;
1392 unsigned forcewake_count;
1393 int count = 0, ret;
1394
1395 ret = mutex_lock_interruptible(&dev->struct_mutex);
1396 if (ret)
1397 return ret;
1398 intel_runtime_pm_get(dev_priv);
1399
1400 spin_lock_irq(&dev_priv->uncore.lock);
1401 forcewake_count = dev_priv->uncore.fw_domain[FW_DOMAIN_ID_RENDER].wake_count;
1402 spin_unlock_irq(&dev_priv->uncore.lock);
1403
1404 if (forcewake_count) {
1405 seq_puts(m, "RC information inaccurate because somebody "
1406 "holds a forcewake reference \n");
1407 } else {
1408 /* NB: we cannot use forcewake, else we read the wrong values */
1409 while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
1410 udelay(10);
1411 seq_printf(m, "RC information accurate: %s\n", yesno(count < 51));
1412 }
1413
1414 gt_core_status = readl(dev_priv->regs + GEN6_GT_CORE_STATUS);
1415 trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true);
1416
1417 rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
1418 rcctl1 = I915_READ(GEN6_RC_CONTROL);
1419 mutex_unlock(&dev->struct_mutex);
1420 mutex_lock(&dev_priv->rps.hw_lock);
1421 sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, &rc6vids);
1422 mutex_unlock(&dev_priv->rps.hw_lock);
1423
1424 intel_runtime_pm_put(dev_priv);
1425
1426 seq_printf(m, "Video Turbo Mode: %s\n",
1427 yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
1428 seq_printf(m, "HW control enabled: %s\n",
1429 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1430 seq_printf(m, "SW control enabled: %s\n",
1431 yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
1432 GEN6_RP_MEDIA_SW_MODE));
1433 seq_printf(m, "RC1e Enabled: %s\n",
1434 yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
1435 seq_printf(m, "RC6 Enabled: %s\n",
1436 yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
1437 seq_printf(m, "Deep RC6 Enabled: %s\n",
1438 yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
1439 seq_printf(m, "Deepest RC6 Enabled: %s\n",
1440 yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
1441 seq_puts(m, "Current RC state: ");
1442 switch (gt_core_status & GEN6_RCn_MASK) {
1443 case GEN6_RC0:
1444 if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
1445 seq_puts(m, "Core Power Down\n");
1446 else
1447 seq_puts(m, "on\n");
1448 break;
1449 case GEN6_RC3:
1450 seq_puts(m, "RC3\n");
1451 break;
1452 case GEN6_RC6:
1453 seq_puts(m, "RC6\n");
1454 break;
1455 case GEN6_RC7:
1456 seq_puts(m, "RC7\n");
1457 break;
1458 default:
1459 seq_puts(m, "Unknown\n");
1460 break;
1461 }
1462
1463 seq_printf(m, "Core Power Down: %s\n",
1464 yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
1465
1466 /* Not exactly sure what this is */
1467 seq_printf(m, "RC6 \"Locked to RPn\" residency since boot: %u\n",
1468 I915_READ(GEN6_GT_GFX_RC6_LOCKED));
1469 seq_printf(m, "RC6 residency since boot: %u\n",
1470 I915_READ(GEN6_GT_GFX_RC6));
1471 seq_printf(m, "RC6+ residency since boot: %u\n",
1472 I915_READ(GEN6_GT_GFX_RC6p));
1473 seq_printf(m, "RC6++ residency since boot: %u\n",
1474 I915_READ(GEN6_GT_GFX_RC6pp));
1475
1476 seq_printf(m, "RC6 voltage: %dmV\n",
1477 GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
1478 seq_printf(m, "RC6+ voltage: %dmV\n",
1479 GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
1480 seq_printf(m, "RC6++ voltage: %dmV\n",
1481 GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
1482 return 0;
1483}
1484
1485static int i915_drpc_info(struct seq_file *m, void *unused)
1486{
1487 struct drm_info_node *node = m->private;
1488 struct drm_device *dev = node->minor->dev;
1489
1490 if (IS_VALLEYVIEW(dev))
1491 return vlv_drpc_info(m);
1492 else if (INTEL_INFO(dev)->gen >= 6)
1493 return gen6_drpc_info(m);
1494 else
1495 return ironlake_drpc_info(m);
1496}
1497
1498static int i915_fbc_status(struct seq_file *m, void *unused)
1499{
1500 struct drm_info_node *node = m->private;
1501 struct drm_device *dev = node->minor->dev;
1502 struct drm_i915_private *dev_priv = dev->dev_private;
1503
1504 if (!HAS_FBC(dev)) {
1505 seq_puts(m, "FBC unsupported on this chipset\n");
1506 return 0;
1507 }
1508
1509 intel_runtime_pm_get(dev_priv);
1510
1511 if (intel_fbc_enabled(dev)) {
1512 seq_puts(m, "FBC enabled\n");
1513 } else {
1514 seq_puts(m, "FBC disabled: ");
1515 switch (dev_priv->fbc.no_fbc_reason) {
1516 case FBC_OK:
1517 seq_puts(m, "FBC actived, but currently disabled in hardware");
1518 break;
1519 case FBC_UNSUPPORTED:
1520 seq_puts(m, "unsupported by this chipset");
1521 break;
1522 case FBC_NO_OUTPUT:
1523 seq_puts(m, "no outputs");
1524 break;
1525 case FBC_STOLEN_TOO_SMALL:
1526 seq_puts(m, "not enough stolen memory");
1527 break;
1528 case FBC_UNSUPPORTED_MODE:
1529 seq_puts(m, "mode not supported");
1530 break;
1531 case FBC_MODE_TOO_LARGE:
1532 seq_puts(m, "mode too large");
1533 break;
1534 case FBC_BAD_PLANE:
1535 seq_puts(m, "FBC unsupported on plane");
1536 break;
1537 case FBC_NOT_TILED:
1538 seq_puts(m, "scanout buffer not tiled");
1539 break;
1540 case FBC_MULTIPLE_PIPES:
1541 seq_puts(m, "multiple pipes are enabled");
1542 break;
1543 case FBC_MODULE_PARAM:
1544 seq_puts(m, "disabled per module param (default off)");
1545 break;
1546 case FBC_CHIP_DEFAULT:
1547 seq_puts(m, "disabled per chip default");
1548 break;
1549 default:
1550 seq_puts(m, "unknown reason");
1551 }
1552 seq_putc(m, '\n');
1553 }
1554
1555 intel_runtime_pm_put(dev_priv);
1556
1557 return 0;
1558}
1559
1560static int i915_fbc_fc_get(void *data, u64 *val)
1561{
1562 struct drm_device *dev = data;
1563 struct drm_i915_private *dev_priv = dev->dev_private;
1564
1565 if (INTEL_INFO(dev)->gen < 7 || !HAS_FBC(dev))
1566 return -ENODEV;
1567
1568 drm_modeset_lock_all(dev);
1569 *val = dev_priv->fbc.false_color;
1570 drm_modeset_unlock_all(dev);
1571
1572 return 0;
1573}
1574
1575static int i915_fbc_fc_set(void *data, u64 val)
1576{
1577 struct drm_device *dev = data;
1578 struct drm_i915_private *dev_priv = dev->dev_private;
1579 u32 reg;
1580
1581 if (INTEL_INFO(dev)->gen < 7 || !HAS_FBC(dev))
1582 return -ENODEV;
1583
1584 drm_modeset_lock_all(dev);
1585
1586 reg = I915_READ(ILK_DPFC_CONTROL);
1587 dev_priv->fbc.false_color = val;
1588
1589 I915_WRITE(ILK_DPFC_CONTROL, val ?
1590 (reg | FBC_CTL_FALSE_COLOR) :
1591 (reg & ~FBC_CTL_FALSE_COLOR));
1592
1593 drm_modeset_unlock_all(dev);
1594 return 0;
1595}
1596
1597DEFINE_SIMPLE_ATTRIBUTE(i915_fbc_fc_fops,
1598 i915_fbc_fc_get, i915_fbc_fc_set,
1599 "%llu\n");
1600
1601static int i915_ips_status(struct seq_file *m, void *unused)
1602{
1603 struct drm_info_node *node = m->private;
1604 struct drm_device *dev = node->minor->dev;
1605 struct drm_i915_private *dev_priv = dev->dev_private;
1606
1607 if (!HAS_IPS(dev)) {
1608 seq_puts(m, "not supported\n");
1609 return 0;
1610 }
1611
1612 intel_runtime_pm_get(dev_priv);
1613
1614 seq_printf(m, "Enabled by kernel parameter: %s\n",
1615 yesno(i915.enable_ips));
1616
1617 if (INTEL_INFO(dev)->gen >= 8) {
1618 seq_puts(m, "Currently: unknown\n");
1619 } else {
1620 if (I915_READ(IPS_CTL) & IPS_ENABLE)
1621 seq_puts(m, "Currently: enabled\n");
1622 else
1623 seq_puts(m, "Currently: disabled\n");
1624 }
1625
1626 intel_runtime_pm_put(dev_priv);
1627
1628 return 0;
1629}
1630
1631static int i915_sr_status(struct seq_file *m, void *unused)
1632{
1633 struct drm_info_node *node = m->private;
1634 struct drm_device *dev = node->minor->dev;
1635 struct drm_i915_private *dev_priv = dev->dev_private;
1636 bool sr_enabled = false;
1637
1638 intel_runtime_pm_get(dev_priv);
1639
1640 if (HAS_PCH_SPLIT(dev))
1641 sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
1642 else if (IS_CRESTLINE(dev) || IS_I945G(dev) || IS_I945GM(dev))
1643 sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
1644 else if (IS_I915GM(dev))
1645 sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
1646 else if (IS_PINEVIEW(dev))
1647 sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
1648
1649 intel_runtime_pm_put(dev_priv);
1650
1651 seq_printf(m, "self-refresh: %s\n",
1652 sr_enabled ? "enabled" : "disabled");
1653
1654 return 0;
1655}
1656
1657static int i915_emon_status(struct seq_file *m, void *unused)
1658{
1659 struct drm_info_node *node = m->private;
1660 struct drm_device *dev = node->minor->dev;
1661 struct drm_i915_private *dev_priv = dev->dev_private;
1662 unsigned long temp, chipset, gfx;
1663 int ret;
1664
1665 if (!IS_GEN5(dev))
1666 return -ENODEV;
1667
1668 ret = mutex_lock_interruptible(&dev->struct_mutex);
1669 if (ret)
1670 return ret;
1671
1672 temp = i915_mch_val(dev_priv);
1673 chipset = i915_chipset_val(dev_priv);
1674 gfx = i915_gfx_val(dev_priv);
1675 mutex_unlock(&dev->struct_mutex);
1676
1677 seq_printf(m, "GMCH temp: %ld\n", temp);
1678 seq_printf(m, "Chipset power: %ld\n", chipset);
1679 seq_printf(m, "GFX power: %ld\n", gfx);
1680 seq_printf(m, "Total power: %ld\n", chipset + gfx);
1681
1682 return 0;
1683}
1684
1685static int i915_ring_freq_table(struct seq_file *m, void *unused)
1686{
1687 struct drm_info_node *node = m->private;
1688 struct drm_device *dev = node->minor->dev;
1689 struct drm_i915_private *dev_priv = dev->dev_private;
1690 int ret = 0;
1691 int gpu_freq, ia_freq;
1692
1693 if (!(IS_GEN6(dev) || IS_GEN7(dev))) {
1694 seq_puts(m, "unsupported on this chipset\n");
1695 return 0;
1696 }
1697
1698 intel_runtime_pm_get(dev_priv);
1699
1700 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
1701
1702 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
1703 if (ret)
1704 goto out;
1705
1706 seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
1707
1708 for (gpu_freq = dev_priv->rps.min_freq_softlimit;
1709 gpu_freq <= dev_priv->rps.max_freq_softlimit;
1710 gpu_freq++) {
1711 ia_freq = gpu_freq;
1712 sandybridge_pcode_read(dev_priv,
1713 GEN6_PCODE_READ_MIN_FREQ_TABLE,
1714 &ia_freq);
1715 seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
1716 intel_gpu_freq(dev_priv, gpu_freq),
1717 ((ia_freq >> 0) & 0xff) * 100,
1718 ((ia_freq >> 8) & 0xff) * 100);
1719 }
1720
1721 mutex_unlock(&dev_priv->rps.hw_lock);
1722
1723out:
1724 intel_runtime_pm_put(dev_priv);
1725 return ret;
1726}
1727
1728static int i915_opregion(struct seq_file *m, void *unused)
1729{
1730 struct drm_info_node *node = m->private;
1731 struct drm_device *dev = node->minor->dev;
1732 struct drm_i915_private *dev_priv = dev->dev_private;
1733 struct intel_opregion *opregion = &dev_priv->opregion;
1734 void *data = kmalloc(OPREGION_SIZE, GFP_KERNEL);
1735 int ret;
1736
1737 if (data == NULL)
1738 return -ENOMEM;
1739
1740 ret = mutex_lock_interruptible(&dev->struct_mutex);
1741 if (ret)
1742 goto out;
1743
1744 if (opregion->header) {
1745 memcpy_fromio(data, opregion->header, OPREGION_SIZE);
1746 seq_write(m, data, OPREGION_SIZE);
1747 }
1748
1749 mutex_unlock(&dev->struct_mutex);
1750
1751out:
1752 kfree(data);
1753 return 0;
1754}
1755
1756static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
1757{
1758 struct drm_info_node *node = m->private;
1759 struct drm_device *dev = node->minor->dev;
1760 struct intel_fbdev *ifbdev = NULL;
1761 struct intel_framebuffer *fb;
1762
1763#ifdef CONFIG_DRM_I915_FBDEV
1764 struct drm_i915_private *dev_priv = dev->dev_private;
1765
1766 ifbdev = dev_priv->fbdev;
1767 fb = to_intel_framebuffer(ifbdev->helper.fb);
1768
1769 seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ",
1770 fb->base.width,
1771 fb->base.height,
1772 fb->base.depth,
1773 fb->base.bits_per_pixel,
1774 fb->base.modifier[0],
1775 atomic_read(&fb->base.refcount.refcount));
1776 describe_obj(m, fb->obj);
1777 seq_putc(m, '\n');
1778#endif
1779
1780 mutex_lock(&dev->mode_config.fb_lock);
1781 list_for_each_entry(fb, &dev->mode_config.fb_list, base.head) {
1782 if (ifbdev && &fb->base == ifbdev->helper.fb)
1783 continue;
1784
1785 seq_printf(m, "user size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ",
1786 fb->base.width,
1787 fb->base.height,
1788 fb->base.depth,
1789 fb->base.bits_per_pixel,
1790 fb->base.modifier[0],
1791 atomic_read(&fb->base.refcount.refcount));
1792 describe_obj(m, fb->obj);
1793 seq_putc(m, '\n');
1794 }
1795 mutex_unlock(&dev->mode_config.fb_lock);
1796
1797 return 0;
1798}
1799
1800static void describe_ctx_ringbuf(struct seq_file *m,
1801 struct intel_ringbuffer *ringbuf)
1802{
1803 seq_printf(m, " (ringbuffer, space: %d, head: %u, tail: %u, last head: %d)",
1804 ringbuf->space, ringbuf->head, ringbuf->tail,
1805 ringbuf->last_retired_head);
1806}
1807
1808static int i915_context_status(struct seq_file *m, void *unused)
1809{
1810 struct drm_info_node *node = m->private;
1811 struct drm_device *dev = node->minor->dev;
1812 struct drm_i915_private *dev_priv = dev->dev_private;
1813 struct intel_engine_cs *ring;
1814 struct intel_context *ctx;
1815 int ret, i;
1816
1817 ret = mutex_lock_interruptible(&dev->struct_mutex);
1818 if (ret)
1819 return ret;
1820
1821 if (dev_priv->ips.pwrctx) {
1822 seq_puts(m, "power context ");
1823 describe_obj(m, dev_priv->ips.pwrctx);
1824 seq_putc(m, '\n');
1825 }
1826
1827 if (dev_priv->ips.renderctx) {
1828 seq_puts(m, "render context ");
1829 describe_obj(m, dev_priv->ips.renderctx);
1830 seq_putc(m, '\n');
1831 }
1832
1833 list_for_each_entry(ctx, &dev_priv->context_list, link) {
1834 if (!i915.enable_execlists &&
1835 ctx->legacy_hw_ctx.rcs_state == NULL)
1836 continue;
1837
1838 seq_puts(m, "HW context ");
1839 describe_ctx(m, ctx);
1840 for_each_ring(ring, dev_priv, i) {
1841 if (ring->default_context == ctx)
1842 seq_printf(m, "(default context %s) ",
1843 ring->name);
1844 }
1845
1846 if (i915.enable_execlists) {
1847 seq_putc(m, '\n');
1848 for_each_ring(ring, dev_priv, i) {
1849 struct drm_i915_gem_object *ctx_obj =
1850 ctx->engine[i].state;
1851 struct intel_ringbuffer *ringbuf =
1852 ctx->engine[i].ringbuf;
1853
1854 seq_printf(m, "%s: ", ring->name);
1855 if (ctx_obj)
1856 describe_obj(m, ctx_obj);
1857 if (ringbuf)
1858 describe_ctx_ringbuf(m, ringbuf);
1859 seq_putc(m, '\n');
1860 }
1861 } else {
1862 describe_obj(m, ctx->legacy_hw_ctx.rcs_state);
1863 }
1864
1865 seq_putc(m, '\n');
1866 }
1867
1868 mutex_unlock(&dev->struct_mutex);
1869
1870 return 0;
1871}
1872
1873static void i915_dump_lrc_obj(struct seq_file *m,
1874 struct intel_engine_cs *ring,
1875 struct drm_i915_gem_object *ctx_obj)
1876{
1877 struct page *page;
1878 uint32_t *reg_state;
1879 int j;
1880 unsigned long ggtt_offset = 0;
1881
1882 if (ctx_obj == NULL) {
1883 seq_printf(m, "Context on %s with no gem object\n",
1884 ring->name);
1885 return;
1886 }
1887
1888 seq_printf(m, "CONTEXT: %s %u\n", ring->name,
1889 intel_execlists_ctx_id(ctx_obj));
1890
1891 if (!i915_gem_obj_ggtt_bound(ctx_obj))
1892 seq_puts(m, "\tNot bound in GGTT\n");
1893 else
1894 ggtt_offset = i915_gem_obj_ggtt_offset(ctx_obj);
1895
1896 if (i915_gem_object_get_pages(ctx_obj)) {
1897 seq_puts(m, "\tFailed to get pages for context object\n");
1898 return;
1899 }
1900
1901 page = i915_gem_object_get_page(ctx_obj, 1);
1902 if (!WARN_ON(page == NULL)) {
1903 reg_state = kmap_atomic(page);
1904
1905 for (j = 0; j < 0x600 / sizeof(u32) / 4; j += 4) {
1906 seq_printf(m, "\t[0x%08lx] 0x%08x 0x%08x 0x%08x 0x%08x\n",
1907 ggtt_offset + 4096 + (j * 4),
1908 reg_state[j], reg_state[j + 1],
1909 reg_state[j + 2], reg_state[j + 3]);
1910 }
1911 kunmap_atomic(reg_state);
1912 }
1913
1914 seq_putc(m, '\n');
1915}
1916
1917static int i915_dump_lrc(struct seq_file *m, void *unused)
1918{
1919 struct drm_info_node *node = (struct drm_info_node *) m->private;
1920 struct drm_device *dev = node->minor->dev;
1921 struct drm_i915_private *dev_priv = dev->dev_private;
1922 struct intel_engine_cs *ring;
1923 struct intel_context *ctx;
1924 int ret, i;
1925
1926 if (!i915.enable_execlists) {
1927 seq_printf(m, "Logical Ring Contexts are disabled\n");
1928 return 0;
1929 }
1930
1931 ret = mutex_lock_interruptible(&dev->struct_mutex);
1932 if (ret)
1933 return ret;
1934
1935 list_for_each_entry(ctx, &dev_priv->context_list, link) {
1936 for_each_ring(ring, dev_priv, i) {
1937 if (ring->default_context != ctx)
1938 i915_dump_lrc_obj(m, ring,
1939 ctx->engine[i].state);
1940 }
1941 }
1942
1943 mutex_unlock(&dev->struct_mutex);
1944
1945 return 0;
1946}
1947
1948static int i915_execlists(struct seq_file *m, void *data)
1949{
1950 struct drm_info_node *node = (struct drm_info_node *)m->private;
1951 struct drm_device *dev = node->minor->dev;
1952 struct drm_i915_private *dev_priv = dev->dev_private;
1953 struct intel_engine_cs *ring;
1954 u32 status_pointer;
1955 u8 read_pointer;
1956 u8 write_pointer;
1957 u32 status;
1958 u32 ctx_id;
1959 struct list_head *cursor;
1960 int ring_id, i;
1961 int ret;
1962
1963 if (!i915.enable_execlists) {
1964 seq_puts(m, "Logical Ring Contexts are disabled\n");
1965 return 0;
1966 }
1967
1968 ret = mutex_lock_interruptible(&dev->struct_mutex);
1969 if (ret)
1970 return ret;
1971
1972 intel_runtime_pm_get(dev_priv);
1973
1974 for_each_ring(ring, dev_priv, ring_id) {
1975 struct drm_i915_gem_request *head_req = NULL;
1976 int count = 0;
1977 unsigned long flags;
1978
1979 seq_printf(m, "%s\n", ring->name);
1980
1981 status = I915_READ(RING_EXECLIST_STATUS(ring));
1982 ctx_id = I915_READ(RING_EXECLIST_STATUS(ring) + 4);
1983 seq_printf(m, "\tExeclist status: 0x%08X, context: %u\n",
1984 status, ctx_id);
1985
1986 status_pointer = I915_READ(RING_CONTEXT_STATUS_PTR(ring));
1987 seq_printf(m, "\tStatus pointer: 0x%08X\n", status_pointer);
1988
1989 read_pointer = ring->next_context_status_buffer;
1990 write_pointer = status_pointer & 0x07;
1991 if (read_pointer > write_pointer)
1992 write_pointer += 6;
1993 seq_printf(m, "\tRead pointer: 0x%08X, write pointer 0x%08X\n",
1994 read_pointer, write_pointer);
1995
1996 for (i = 0; i < 6; i++) {
1997 status = I915_READ(RING_CONTEXT_STATUS_BUF(ring) + 8*i);
1998 ctx_id = I915_READ(RING_CONTEXT_STATUS_BUF(ring) + 8*i + 4);
1999
2000 seq_printf(m, "\tStatus buffer %d: 0x%08X, context: %u\n",
2001 i, status, ctx_id);
2002 }
2003
2004 spin_lock_irqsave(&ring->execlist_lock, flags);
2005 list_for_each(cursor, &ring->execlist_queue)
2006 count++;
2007 head_req = list_first_entry_or_null(&ring->execlist_queue,
2008 struct drm_i915_gem_request, execlist_link);
2009 spin_unlock_irqrestore(&ring->execlist_lock, flags);
2010
2011 seq_printf(m, "\t%d requests in queue\n", count);
2012 if (head_req) {
2013 struct drm_i915_gem_object *ctx_obj;
2014
2015 ctx_obj = head_req->ctx->engine[ring_id].state;
2016 seq_printf(m, "\tHead request id: %u\n",
2017 intel_execlists_ctx_id(ctx_obj));
2018 seq_printf(m, "\tHead request tail: %u\n",
2019 head_req->tail);
2020 }
2021
2022 seq_putc(m, '\n');
2023 }
2024
2025 intel_runtime_pm_put(dev_priv);
2026 mutex_unlock(&dev->struct_mutex);
2027
2028 return 0;
2029}
2030
2031static const char *swizzle_string(unsigned swizzle)
2032{
2033 switch (swizzle) {
2034 case I915_BIT_6_SWIZZLE_NONE:
2035 return "none";
2036 case I915_BIT_6_SWIZZLE_9:
2037 return "bit9";
2038 case I915_BIT_6_SWIZZLE_9_10:
2039 return "bit9/bit10";
2040 case I915_BIT_6_SWIZZLE_9_11:
2041 return "bit9/bit11";
2042 case I915_BIT_6_SWIZZLE_9_10_11:
2043 return "bit9/bit10/bit11";
2044 case I915_BIT_6_SWIZZLE_9_17:
2045 return "bit9/bit17";
2046 case I915_BIT_6_SWIZZLE_9_10_17:
2047 return "bit9/bit10/bit17";
2048 case I915_BIT_6_SWIZZLE_UNKNOWN:
2049 return "unknown";
2050 }
2051
2052 return "bug";
2053}
2054
2055static int i915_swizzle_info(struct seq_file *m, void *data)
2056{
2057 struct drm_info_node *node = m->private;
2058 struct drm_device *dev = node->minor->dev;
2059 struct drm_i915_private *dev_priv = dev->dev_private;
2060 int ret;
2061
2062 ret = mutex_lock_interruptible(&dev->struct_mutex);
2063 if (ret)
2064 return ret;
2065 intel_runtime_pm_get(dev_priv);
2066
2067 seq_printf(m, "bit6 swizzle for X-tiling = %s\n",
2068 swizzle_string(dev_priv->mm.bit_6_swizzle_x));
2069 seq_printf(m, "bit6 swizzle for Y-tiling = %s\n",
2070 swizzle_string(dev_priv->mm.bit_6_swizzle_y));
2071
2072 if (IS_GEN3(dev) || IS_GEN4(dev)) {
2073 seq_printf(m, "DDC = 0x%08x\n",
2074 I915_READ(DCC));
2075 seq_printf(m, "DDC2 = 0x%08x\n",
2076 I915_READ(DCC2));
2077 seq_printf(m, "C0DRB3 = 0x%04x\n",
2078 I915_READ16(C0DRB3));
2079 seq_printf(m, "C1DRB3 = 0x%04x\n",
2080 I915_READ16(C1DRB3));
2081 } else if (INTEL_INFO(dev)->gen >= 6) {
2082 seq_printf(m, "MAD_DIMM_C0 = 0x%08x\n",
2083 I915_READ(MAD_DIMM_C0));
2084 seq_printf(m, "MAD_DIMM_C1 = 0x%08x\n",
2085 I915_READ(MAD_DIMM_C1));
2086 seq_printf(m, "MAD_DIMM_C2 = 0x%08x\n",
2087 I915_READ(MAD_DIMM_C2));
2088 seq_printf(m, "TILECTL = 0x%08x\n",
2089 I915_READ(TILECTL));
2090 if (INTEL_INFO(dev)->gen >= 8)
2091 seq_printf(m, "GAMTARBMODE = 0x%08x\n",
2092 I915_READ(GAMTARBMODE));
2093 else
2094 seq_printf(m, "ARB_MODE = 0x%08x\n",
2095 I915_READ(ARB_MODE));
2096 seq_printf(m, "DISP_ARB_CTL = 0x%08x\n",
2097 I915_READ(DISP_ARB_CTL));
2098 }
2099
2100 if (dev_priv->quirks & QUIRK_PIN_SWIZZLED_PAGES)
2101 seq_puts(m, "L-shaped memory detected\n");
2102
2103 intel_runtime_pm_put(dev_priv);
2104 mutex_unlock(&dev->struct_mutex);
2105
2106 return 0;
2107}
2108
2109static int per_file_ctx(int id, void *ptr, void *data)
2110{
2111 struct intel_context *ctx = ptr;
2112 struct seq_file *m = data;
2113 struct i915_hw_ppgtt *ppgtt = ctx->ppgtt;
2114
2115 if (!ppgtt) {
2116 seq_printf(m, " no ppgtt for context %d\n",
2117 ctx->user_handle);
2118 return 0;
2119 }
2120
2121 if (i915_gem_context_is_default(ctx))
2122 seq_puts(m, " default context:\n");
2123 else
2124 seq_printf(m, " context %d:\n", ctx->user_handle);
2125 ppgtt->debug_dump(ppgtt, m);
2126
2127 return 0;
2128}
2129
2130static void gen8_ppgtt_info(struct seq_file *m, struct drm_device *dev)
2131{
2132 struct drm_i915_private *dev_priv = dev->dev_private;
2133 struct intel_engine_cs *ring;
2134 struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
2135 int unused, i;
2136
2137 if (!ppgtt)
2138 return;
2139
2140 seq_printf(m, "Page directories: %d\n", ppgtt->num_pd_pages);
2141 seq_printf(m, "Page tables: %d\n", ppgtt->num_pd_entries);
2142 for_each_ring(ring, dev_priv, unused) {
2143 seq_printf(m, "%s\n", ring->name);
2144 for (i = 0; i < 4; i++) {
2145 u32 offset = 0x270 + i * 8;
2146 u64 pdp = I915_READ(ring->mmio_base + offset + 4);
2147 pdp <<= 32;
2148 pdp |= I915_READ(ring->mmio_base + offset);
2149 seq_printf(m, "\tPDP%d 0x%016llx\n", i, pdp);
2150 }
2151 }
2152}
2153
2154static void gen6_ppgtt_info(struct seq_file *m, struct drm_device *dev)
2155{
2156 struct drm_i915_private *dev_priv = dev->dev_private;
2157 struct intel_engine_cs *ring;
2158 struct drm_file *file;
2159 int i;
2160
2161 if (INTEL_INFO(dev)->gen == 6)
2162 seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(GFX_MODE));
2163
2164 for_each_ring(ring, dev_priv, i) {
2165 seq_printf(m, "%s\n", ring->name);
2166 if (INTEL_INFO(dev)->gen == 7)
2167 seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(RING_MODE_GEN7(ring)));
2168 seq_printf(m, "PP_DIR_BASE: 0x%08x\n", I915_READ(RING_PP_DIR_BASE(ring)));
2169 seq_printf(m, "PP_DIR_BASE_READ: 0x%08x\n", I915_READ(RING_PP_DIR_BASE_READ(ring)));
2170 seq_printf(m, "PP_DIR_DCLV: 0x%08x\n", I915_READ(RING_PP_DIR_DCLV(ring)));
2171 }
2172 if (dev_priv->mm.aliasing_ppgtt) {
2173 struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
2174
2175 seq_puts(m, "aliasing PPGTT:\n");
2176 seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd_offset);
2177
2178 ppgtt->debug_dump(ppgtt, m);
2179 }
2180
2181 list_for_each_entry_reverse(file, &dev->filelist, lhead) {
2182 struct drm_i915_file_private *file_priv = file->driver_priv;
2183
2184 seq_printf(m, "proc: %s\n",
2185 get_pid_task(file->pid, PIDTYPE_PID)->comm);
2186 idr_for_each(&file_priv->context_idr, per_file_ctx, m);
2187 }
2188 seq_printf(m, "ECOCHK: 0x%08x\n", I915_READ(GAM_ECOCHK));
2189}
2190
2191static int i915_ppgtt_info(struct seq_file *m, void *data)
2192{
2193 struct drm_info_node *node = m->private;
2194 struct drm_device *dev = node->minor->dev;
2195 struct drm_i915_private *dev_priv = dev->dev_private;
2196
2197 int ret = mutex_lock_interruptible(&dev->struct_mutex);
2198 if (ret)
2199 return ret;
2200 intel_runtime_pm_get(dev_priv);
2201
2202 if (INTEL_INFO(dev)->gen >= 8)
2203 gen8_ppgtt_info(m, dev);
2204 else if (INTEL_INFO(dev)->gen >= 6)
2205 gen6_ppgtt_info(m, dev);
2206
2207 intel_runtime_pm_put(dev_priv);
2208 mutex_unlock(&dev->struct_mutex);
2209
2210 return 0;
2211}
2212
2213static int i915_llc(struct seq_file *m, void *data)
2214{
2215 struct drm_info_node *node = m->private;
2216 struct drm_device *dev = node->minor->dev;
2217 struct drm_i915_private *dev_priv = dev->dev_private;
2218
2219 /* Size calculation for LLC is a bit of a pain. Ignore for now. */
2220 seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(dev)));
2221 seq_printf(m, "eLLC: %zuMB\n", dev_priv->ellc_size);
2222
2223 return 0;
2224}
2225
2226static int i915_edp_psr_status(struct seq_file *m, void *data)
2227{
2228 struct drm_info_node *node = m->private;
2229 struct drm_device *dev = node->minor->dev;
2230 struct drm_i915_private *dev_priv = dev->dev_private;
2231 u32 psrperf = 0;
2232 u32 stat[3];
2233 enum pipe pipe;
2234 bool enabled = false;
2235
2236 intel_runtime_pm_get(dev_priv);
2237
2238 mutex_lock(&dev_priv->psr.lock);
2239 seq_printf(m, "Sink_Support: %s\n", yesno(dev_priv->psr.sink_support));
2240 seq_printf(m, "Source_OK: %s\n", yesno(dev_priv->psr.source_ok));
2241 seq_printf(m, "Enabled: %s\n", yesno((bool)dev_priv->psr.enabled));
2242 seq_printf(m, "Active: %s\n", yesno(dev_priv->psr.active));
2243 seq_printf(m, "Busy frontbuffer bits: 0x%03x\n",
2244 dev_priv->psr.busy_frontbuffer_bits);
2245 seq_printf(m, "Re-enable work scheduled: %s\n",
2246 yesno(work_busy(&dev_priv->psr.work.work)));
2247
2248 if (HAS_PSR(dev)) {
2249 if (HAS_DDI(dev))
2250 enabled = I915_READ(EDP_PSR_CTL(dev)) & EDP_PSR_ENABLE;
2251 else {
2252 for_each_pipe(dev_priv, pipe) {
2253 stat[pipe] = I915_READ(VLV_PSRSTAT(pipe)) &
2254 VLV_EDP_PSR_CURR_STATE_MASK;
2255 if ((stat[pipe] == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
2256 (stat[pipe] == VLV_EDP_PSR_ACTIVE_SF_UPDATE))
2257 enabled = true;
2258 }
2259 }
2260 }
2261 seq_printf(m, "HW Enabled & Active bit: %s", yesno(enabled));
2262
2263 if (!HAS_DDI(dev))
2264 for_each_pipe(dev_priv, pipe) {
2265 if ((stat[pipe] == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
2266 (stat[pipe] == VLV_EDP_PSR_ACTIVE_SF_UPDATE))
2267 seq_printf(m, " pipe %c", pipe_name(pipe));
2268 }
2269 seq_puts(m, "\n");
2270
2271 seq_printf(m, "Link standby: %s\n",
2272 yesno((bool)dev_priv->psr.link_standby));
2273
2274 /* CHV PSR has no kind of performance counter */
2275 if (HAS_PSR(dev) && HAS_DDI(dev)) {
2276 psrperf = I915_READ(EDP_PSR_PERF_CNT(dev)) &
2277 EDP_PSR_PERF_CNT_MASK;
2278
2279 seq_printf(m, "Performance_Counter: %u\n", psrperf);
2280 }
2281 mutex_unlock(&dev_priv->psr.lock);
2282
2283 intel_runtime_pm_put(dev_priv);
2284 return 0;
2285}
2286
2287static int i915_sink_crc(struct seq_file *m, void *data)
2288{
2289 struct drm_info_node *node = m->private;
2290 struct drm_device *dev = node->minor->dev;
2291 struct intel_encoder *encoder;
2292 struct intel_connector *connector;
2293 struct intel_dp *intel_dp = NULL;
2294 int ret;
2295 u8 crc[6];
2296
2297 drm_modeset_lock_all(dev);
2298 list_for_each_entry(connector, &dev->mode_config.connector_list,
2299 base.head) {
2300
2301 if (connector->base.dpms != DRM_MODE_DPMS_ON)
2302 continue;
2303
2304 if (!connector->base.encoder)
2305 continue;
2306
2307 encoder = to_intel_encoder(connector->base.encoder);
2308 if (encoder->type != INTEL_OUTPUT_EDP)
2309 continue;
2310
2311 intel_dp = enc_to_intel_dp(&encoder->base);
2312
2313 ret = intel_dp_sink_crc(intel_dp, crc);
2314 if (ret)
2315 goto out;
2316
2317 seq_printf(m, "%02x%02x%02x%02x%02x%02x\n",
2318 crc[0], crc[1], crc[2],
2319 crc[3], crc[4], crc[5]);
2320 goto out;
2321 }
2322 ret = -ENODEV;
2323out:
2324 drm_modeset_unlock_all(dev);
2325 return ret;
2326}
2327
2328static int i915_energy_uJ(struct seq_file *m, void *data)
2329{
2330 struct drm_info_node *node = m->private;
2331 struct drm_device *dev = node->minor->dev;
2332 struct drm_i915_private *dev_priv = dev->dev_private;
2333 u64 power;
2334 u32 units;
2335
2336 if (INTEL_INFO(dev)->gen < 6)
2337 return -ENODEV;
2338
2339 intel_runtime_pm_get(dev_priv);
2340
2341 rdmsrl(MSR_RAPL_POWER_UNIT, power);
2342 power = (power & 0x1f00) >> 8;
2343 units = 1000000 / (1 << power); /* convert to uJ */
2344 power = I915_READ(MCH_SECP_NRG_STTS);
2345 power *= units;
2346
2347 intel_runtime_pm_put(dev_priv);
2348
2349 seq_printf(m, "%llu", (long long unsigned)power);
2350
2351 return 0;
2352}
2353
2354static int i915_pc8_status(struct seq_file *m, void *unused)
2355{
2356 struct drm_info_node *node = m->private;
2357 struct drm_device *dev = node->minor->dev;
2358 struct drm_i915_private *dev_priv = dev->dev_private;
2359
2360 if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) {
2361 seq_puts(m, "not supported\n");
2362 return 0;
2363 }
2364
2365 seq_printf(m, "GPU idle: %s\n", yesno(!dev_priv->mm.busy));
2366 seq_printf(m, "IRQs disabled: %s\n",
2367 yesno(!intel_irqs_enabled(dev_priv)));
2368
2369 return 0;
2370}
2371
2372static const char *power_domain_str(enum intel_display_power_domain domain)
2373{
2374 switch (domain) {
2375 case POWER_DOMAIN_PIPE_A:
2376 return "PIPE_A";
2377 case POWER_DOMAIN_PIPE_B:
2378 return "PIPE_B";
2379 case POWER_DOMAIN_PIPE_C:
2380 return "PIPE_C";
2381 case POWER_DOMAIN_PIPE_A_PANEL_FITTER:
2382 return "PIPE_A_PANEL_FITTER";
2383 case POWER_DOMAIN_PIPE_B_PANEL_FITTER:
2384 return "PIPE_B_PANEL_FITTER";
2385 case POWER_DOMAIN_PIPE_C_PANEL_FITTER:
2386 return "PIPE_C_PANEL_FITTER";
2387 case POWER_DOMAIN_TRANSCODER_A:
2388 return "TRANSCODER_A";
2389 case POWER_DOMAIN_TRANSCODER_B:
2390 return "TRANSCODER_B";
2391 case POWER_DOMAIN_TRANSCODER_C:
2392 return "TRANSCODER_C";
2393 case POWER_DOMAIN_TRANSCODER_EDP:
2394 return "TRANSCODER_EDP";
2395 case POWER_DOMAIN_PORT_DDI_A_2_LANES:
2396 return "PORT_DDI_A_2_LANES";
2397 case POWER_DOMAIN_PORT_DDI_A_4_LANES:
2398 return "PORT_DDI_A_4_LANES";
2399 case POWER_DOMAIN_PORT_DDI_B_2_LANES:
2400 return "PORT_DDI_B_2_LANES";
2401 case POWER_DOMAIN_PORT_DDI_B_4_LANES:
2402 return "PORT_DDI_B_4_LANES";
2403 case POWER_DOMAIN_PORT_DDI_C_2_LANES:
2404 return "PORT_DDI_C_2_LANES";
2405 case POWER_DOMAIN_PORT_DDI_C_4_LANES:
2406 return "PORT_DDI_C_4_LANES";
2407 case POWER_DOMAIN_PORT_DDI_D_2_LANES:
2408 return "PORT_DDI_D_2_LANES";
2409 case POWER_DOMAIN_PORT_DDI_D_4_LANES:
2410 return "PORT_DDI_D_4_LANES";
2411 case POWER_DOMAIN_PORT_DSI:
2412 return "PORT_DSI";
2413 case POWER_DOMAIN_PORT_CRT:
2414 return "PORT_CRT";
2415 case POWER_DOMAIN_PORT_OTHER:
2416 return "PORT_OTHER";
2417 case POWER_DOMAIN_VGA:
2418 return "VGA";
2419 case POWER_DOMAIN_AUDIO:
2420 return "AUDIO";
2421 case POWER_DOMAIN_PLLS:
2422 return "PLLS";
2423 case POWER_DOMAIN_AUX_A:
2424 return "AUX_A";
2425 case POWER_DOMAIN_AUX_B:
2426 return "AUX_B";
2427 case POWER_DOMAIN_AUX_C:
2428 return "AUX_C";
2429 case POWER_DOMAIN_AUX_D:
2430 return "AUX_D";
2431 case POWER_DOMAIN_INIT:
2432 return "INIT";
2433 default:
2434 MISSING_CASE(domain);
2435 return "?";
2436 }
2437}
2438
2439static int i915_power_domain_info(struct seq_file *m, void *unused)
2440{
2441 struct drm_info_node *node = m->private;
2442 struct drm_device *dev = node->minor->dev;
2443 struct drm_i915_private *dev_priv = dev->dev_private;
2444 struct i915_power_domains *power_domains = &dev_priv->power_domains;
2445 int i;
2446
2447 mutex_lock(&power_domains->lock);
2448
2449 seq_printf(m, "%-25s %s\n", "Power well/domain", "Use count");
2450 for (i = 0; i < power_domains->power_well_count; i++) {
2451 struct i915_power_well *power_well;
2452 enum intel_display_power_domain power_domain;
2453
2454 power_well = &power_domains->power_wells[i];
2455 seq_printf(m, "%-25s %d\n", power_well->name,
2456 power_well->count);
2457
2458 for (power_domain = 0; power_domain < POWER_DOMAIN_NUM;
2459 power_domain++) {
2460 if (!(BIT(power_domain) & power_well->domains))
2461 continue;
2462
2463 seq_printf(m, " %-23s %d\n",
2464 power_domain_str(power_domain),
2465 power_domains->domain_use_count[power_domain]);
2466 }
2467 }
2468
2469 mutex_unlock(&power_domains->lock);
2470
2471 return 0;
2472}
2473
2474static void intel_seq_print_mode(struct seq_file *m, int tabs,
2475 struct drm_display_mode *mode)
2476{
2477 int i;
2478
2479 for (i = 0; i < tabs; i++)
2480 seq_putc(m, '\t');
2481
2482 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",
2483 mode->base.id, mode->name,
2484 mode->vrefresh, mode->clock,
2485 mode->hdisplay, mode->hsync_start,
2486 mode->hsync_end, mode->htotal,
2487 mode->vdisplay, mode->vsync_start,
2488 mode->vsync_end, mode->vtotal,
2489 mode->type, mode->flags);
2490}
2491
2492static void intel_encoder_info(struct seq_file *m,
2493 struct intel_crtc *intel_crtc,
2494 struct intel_encoder *intel_encoder)
2495{
2496 struct drm_info_node *node = m->private;
2497 struct drm_device *dev = node->minor->dev;
2498 struct drm_crtc *crtc = &intel_crtc->base;
2499 struct intel_connector *intel_connector;
2500 struct drm_encoder *encoder;
2501
2502 encoder = &intel_encoder->base;
2503 seq_printf(m, "\tencoder %d: type: %s, connectors:\n",
2504 encoder->base.id, encoder->name);
2505 for_each_connector_on_encoder(dev, encoder, intel_connector) {
2506 struct drm_connector *connector = &intel_connector->base;
2507 seq_printf(m, "\t\tconnector %d: type: %s, status: %s",
2508 connector->base.id,
2509 connector->name,
2510 drm_get_connector_status_name(connector->status));
2511 if (connector->status == connector_status_connected) {
2512 struct drm_display_mode *mode = &crtc->mode;
2513 seq_printf(m, ", mode:\n");
2514 intel_seq_print_mode(m, 2, mode);
2515 } else {
2516 seq_putc(m, '\n');
2517 }
2518 }
2519}
2520
2521static void intel_crtc_info(struct seq_file *m, struct intel_crtc *intel_crtc)
2522{
2523 struct drm_info_node *node = m->private;
2524 struct drm_device *dev = node->minor->dev;
2525 struct drm_crtc *crtc = &intel_crtc->base;
2526 struct intel_encoder *intel_encoder;
2527
2528 if (crtc->primary->fb)
2529 seq_printf(m, "\tfb: %d, pos: %dx%d, size: %dx%d\n",
2530 crtc->primary->fb->base.id, crtc->x, crtc->y,
2531 crtc->primary->fb->width, crtc->primary->fb->height);
2532 else
2533 seq_puts(m, "\tprimary plane disabled\n");
2534 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
2535 intel_encoder_info(m, intel_crtc, intel_encoder);
2536}
2537
2538static void intel_panel_info(struct seq_file *m, struct intel_panel *panel)
2539{
2540 struct drm_display_mode *mode = panel->fixed_mode;
2541
2542 seq_printf(m, "\tfixed mode:\n");
2543 intel_seq_print_mode(m, 2, mode);
2544}
2545
2546static void intel_dp_info(struct seq_file *m,
2547 struct intel_connector *intel_connector)
2548{
2549 struct intel_encoder *intel_encoder = intel_connector->encoder;
2550 struct intel_dp *intel_dp = enc_to_intel_dp(&intel_encoder->base);
2551
2552 seq_printf(m, "\tDPCD rev: %x\n", intel_dp->dpcd[DP_DPCD_REV]);
2553 seq_printf(m, "\taudio support: %s\n", intel_dp->has_audio ? "yes" :
2554 "no");
2555 if (intel_encoder->type == INTEL_OUTPUT_EDP)
2556 intel_panel_info(m, &intel_connector->panel);
2557}
2558
2559static void intel_hdmi_info(struct seq_file *m,
2560 struct intel_connector *intel_connector)
2561{
2562 struct intel_encoder *intel_encoder = intel_connector->encoder;
2563 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&intel_encoder->base);
2564
2565 seq_printf(m, "\taudio support: %s\n", intel_hdmi->has_audio ? "yes" :
2566 "no");
2567}
2568
2569static void intel_lvds_info(struct seq_file *m,
2570 struct intel_connector *intel_connector)
2571{
2572 intel_panel_info(m, &intel_connector->panel);
2573}
2574
2575static void intel_connector_info(struct seq_file *m,
2576 struct drm_connector *connector)
2577{
2578 struct intel_connector *intel_connector = to_intel_connector(connector);
2579 struct intel_encoder *intel_encoder = intel_connector->encoder;
2580 struct drm_display_mode *mode;
2581
2582 seq_printf(m, "connector %d: type %s, status: %s\n",
2583 connector->base.id, connector->name,
2584 drm_get_connector_status_name(connector->status));
2585 if (connector->status == connector_status_connected) {
2586 seq_printf(m, "\tname: %s\n", connector->display_info.name);
2587 seq_printf(m, "\tphysical dimensions: %dx%dmm\n",
2588 connector->display_info.width_mm,
2589 connector->display_info.height_mm);
2590 seq_printf(m, "\tsubpixel order: %s\n",
2591 drm_get_subpixel_order_name(connector->display_info.subpixel_order));
2592 seq_printf(m, "\tCEA rev: %d\n",
2593 connector->display_info.cea_rev);
2594 }
2595 if (intel_encoder) {
2596 if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT ||
2597 intel_encoder->type == INTEL_OUTPUT_EDP)
2598 intel_dp_info(m, intel_connector);
2599 else if (intel_encoder->type == INTEL_OUTPUT_HDMI)
2600 intel_hdmi_info(m, intel_connector);
2601 else if (intel_encoder->type == INTEL_OUTPUT_LVDS)
2602 intel_lvds_info(m, intel_connector);
2603 }
2604
2605 seq_printf(m, "\tmodes:\n");
2606 list_for_each_entry(mode, &connector->modes, head)
2607 intel_seq_print_mode(m, 2, mode);
2608}
2609
2610static bool cursor_active(struct drm_device *dev, int pipe)
2611{
2612 struct drm_i915_private *dev_priv = dev->dev_private;
2613 u32 state;
2614
2615 if (IS_845G(dev) || IS_I865G(dev))
2616 state = I915_READ(_CURACNTR) & CURSOR_ENABLE;
2617 else
2618 state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE;
2619
2620 return state;
2621}
2622
2623static bool cursor_position(struct drm_device *dev, int pipe, int *x, int *y)
2624{
2625 struct drm_i915_private *dev_priv = dev->dev_private;
2626 u32 pos;
2627
2628 pos = I915_READ(CURPOS(pipe));
2629
2630 *x = (pos >> CURSOR_X_SHIFT) & CURSOR_POS_MASK;
2631 if (pos & (CURSOR_POS_SIGN << CURSOR_X_SHIFT))
2632 *x = -*x;
2633
2634 *y = (pos >> CURSOR_Y_SHIFT) & CURSOR_POS_MASK;
2635 if (pos & (CURSOR_POS_SIGN << CURSOR_Y_SHIFT))
2636 *y = -*y;
2637
2638 return cursor_active(dev, pipe);
2639}
2640
2641static int i915_display_info(struct seq_file *m, void *unused)
2642{
2643 struct drm_info_node *node = m->private;
2644 struct drm_device *dev = node->minor->dev;
2645 struct drm_i915_private *dev_priv = dev->dev_private;
2646 struct intel_crtc *crtc;
2647 struct drm_connector *connector;
2648
2649 intel_runtime_pm_get(dev_priv);
2650 drm_modeset_lock_all(dev);
2651 seq_printf(m, "CRTC info\n");
2652 seq_printf(m, "---------\n");
2653 for_each_intel_crtc(dev, crtc) {
2654 bool active;
2655 int x, y;
2656
2657 seq_printf(m, "CRTC %d: pipe: %c, active=%s (size=%dx%d)\n",
2658 crtc->base.base.id, pipe_name(crtc->pipe),
2659 yesno(crtc->active), crtc->config->pipe_src_w,
2660 crtc->config->pipe_src_h);
2661 if (crtc->active) {
2662 intel_crtc_info(m, crtc);
2663
2664 active = cursor_position(dev, crtc->pipe, &x, &y);
2665 seq_printf(m, "\tcursor visible? %s, position (%d, %d), size %dx%d, addr 0x%08x, active? %s\n",
2666 yesno(crtc->cursor_base),
2667 x, y, crtc->cursor_width, crtc->cursor_height,
2668 crtc->cursor_addr, yesno(active));
2669 }
2670
2671 seq_printf(m, "\tunderrun reporting: cpu=%s pch=%s \n",
2672 yesno(!crtc->cpu_fifo_underrun_disabled),
2673 yesno(!crtc->pch_fifo_underrun_disabled));
2674 }
2675
2676 seq_printf(m, "\n");
2677 seq_printf(m, "Connector info\n");
2678 seq_printf(m, "--------------\n");
2679 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2680 intel_connector_info(m, connector);
2681 }
2682 drm_modeset_unlock_all(dev);
2683 intel_runtime_pm_put(dev_priv);
2684
2685 return 0;
2686}
2687
2688static int i915_semaphore_status(struct seq_file *m, void *unused)
2689{
2690 struct drm_info_node *node = (struct drm_info_node *) m->private;
2691 struct drm_device *dev = node->minor->dev;
2692 struct drm_i915_private *dev_priv = dev->dev_private;
2693 struct intel_engine_cs *ring;
2694 int num_rings = hweight32(INTEL_INFO(dev)->ring_mask);
2695 int i, j, ret;
2696
2697 if (!i915_semaphore_is_enabled(dev)) {
2698 seq_puts(m, "Semaphores are disabled\n");
2699 return 0;
2700 }
2701
2702 ret = mutex_lock_interruptible(&dev->struct_mutex);
2703 if (ret)
2704 return ret;
2705 intel_runtime_pm_get(dev_priv);
2706
2707 if (IS_BROADWELL(dev)) {
2708 struct page *page;
2709 uint64_t *seqno;
2710
2711 page = i915_gem_object_get_page(dev_priv->semaphore_obj, 0);
2712
2713 seqno = (uint64_t *)kmap_atomic(page);
2714 for_each_ring(ring, dev_priv, i) {
2715 uint64_t offset;
2716
2717 seq_printf(m, "%s\n", ring->name);
2718
2719 seq_puts(m, " Last signal:");
2720 for (j = 0; j < num_rings; j++) {
2721 offset = i * I915_NUM_RINGS + j;
2722 seq_printf(m, "0x%08llx (0x%02llx) ",
2723 seqno[offset], offset * 8);
2724 }
2725 seq_putc(m, '\n');
2726
2727 seq_puts(m, " Last wait: ");
2728 for (j = 0; j < num_rings; j++) {
2729 offset = i + (j * I915_NUM_RINGS);
2730 seq_printf(m, "0x%08llx (0x%02llx) ",
2731 seqno[offset], offset * 8);
2732 }
2733 seq_putc(m, '\n');
2734
2735 }
2736 kunmap_atomic(seqno);
2737 } else {
2738 seq_puts(m, " Last signal:");
2739 for_each_ring(ring, dev_priv, i)
2740 for (j = 0; j < num_rings; j++)
2741 seq_printf(m, "0x%08x\n",
2742 I915_READ(ring->semaphore.mbox.signal[j]));
2743 seq_putc(m, '\n');
2744 }
2745
2746 seq_puts(m, "\nSync seqno:\n");
2747 for_each_ring(ring, dev_priv, i) {
2748 for (j = 0; j < num_rings; j++) {
2749 seq_printf(m, " 0x%08x ", ring->semaphore.sync_seqno[j]);
2750 }
2751 seq_putc(m, '\n');
2752 }
2753 seq_putc(m, '\n');
2754
2755 intel_runtime_pm_put(dev_priv);
2756 mutex_unlock(&dev->struct_mutex);
2757 return 0;
2758}
2759
2760static int i915_shared_dplls_info(struct seq_file *m, void *unused)
2761{
2762 struct drm_info_node *node = (struct drm_info_node *) m->private;
2763 struct drm_device *dev = node->minor->dev;
2764 struct drm_i915_private *dev_priv = dev->dev_private;
2765 int i;
2766
2767 drm_modeset_lock_all(dev);
2768 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
2769 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
2770
2771 seq_printf(m, "DPLL%i: %s, id: %i\n", i, pll->name, pll->id);
2772 seq_printf(m, " crtc_mask: 0x%08x, active: %d, on: %s\n",
2773 pll->config.crtc_mask, pll->active, yesno(pll->on));
2774 seq_printf(m, " tracked hardware state:\n");
2775 seq_printf(m, " dpll: 0x%08x\n", pll->config.hw_state.dpll);
2776 seq_printf(m, " dpll_md: 0x%08x\n",
2777 pll->config.hw_state.dpll_md);
2778 seq_printf(m, " fp0: 0x%08x\n", pll->config.hw_state.fp0);
2779 seq_printf(m, " fp1: 0x%08x\n", pll->config.hw_state.fp1);
2780 seq_printf(m, " wrpll: 0x%08x\n", pll->config.hw_state.wrpll);
2781 }
2782 drm_modeset_unlock_all(dev);
2783
2784 return 0;
2785}
2786
2787static int i915_wa_registers(struct seq_file *m, void *unused)
2788{
2789 int i;
2790 int ret;
2791 struct drm_info_node *node = (struct drm_info_node *) m->private;
2792 struct drm_device *dev = node->minor->dev;
2793 struct drm_i915_private *dev_priv = dev->dev_private;
2794
2795 ret = mutex_lock_interruptible(&dev->struct_mutex);
2796 if (ret)
2797 return ret;
2798
2799 intel_runtime_pm_get(dev_priv);
2800
2801 seq_printf(m, "Workarounds applied: %d\n", dev_priv->workarounds.count);
2802 for (i = 0; i < dev_priv->workarounds.count; ++i) {
2803 u32 addr, mask, value, read;
2804 bool ok;
2805
2806 addr = dev_priv->workarounds.reg[i].addr;
2807 mask = dev_priv->workarounds.reg[i].mask;
2808 value = dev_priv->workarounds.reg[i].value;
2809 read = I915_READ(addr);
2810 ok = (value & mask) == (read & mask);
2811 seq_printf(m, "0x%X: 0x%08X, mask: 0x%08X, read: 0x%08x, status: %s\n",
2812 addr, value, mask, read, ok ? "OK" : "FAIL");
2813 }
2814
2815 intel_runtime_pm_put(dev_priv);
2816 mutex_unlock(&dev->struct_mutex);
2817
2818 return 0;
2819}
2820
2821static int i915_ddb_info(struct seq_file *m, void *unused)
2822{
2823 struct drm_info_node *node = m->private;
2824 struct drm_device *dev = node->minor->dev;
2825 struct drm_i915_private *dev_priv = dev->dev_private;
2826 struct skl_ddb_allocation *ddb;
2827 struct skl_ddb_entry *entry;
2828 enum pipe pipe;
2829 int plane;
2830
2831 if (INTEL_INFO(dev)->gen < 9)
2832 return 0;
2833
2834 drm_modeset_lock_all(dev);
2835
2836 ddb = &dev_priv->wm.skl_hw.ddb;
2837
2838 seq_printf(m, "%-15s%8s%8s%8s\n", "", "Start", "End", "Size");
2839
2840 for_each_pipe(dev_priv, pipe) {
2841 seq_printf(m, "Pipe %c\n", pipe_name(pipe));
2842
2843 for_each_plane(pipe, plane) {
2844 entry = &ddb->plane[pipe][plane];
2845 seq_printf(m, " Plane%-8d%8u%8u%8u\n", plane + 1,
2846 entry->start, entry->end,
2847 skl_ddb_entry_size(entry));
2848 }
2849
2850 entry = &ddb->cursor[pipe];
2851 seq_printf(m, " %-13s%8u%8u%8u\n", "Cursor", entry->start,
2852 entry->end, skl_ddb_entry_size(entry));
2853 }
2854
2855 drm_modeset_unlock_all(dev);
2856
2857 return 0;
2858}
2859
2860struct pipe_crc_info {
2861 const char *name;
2862 struct drm_device *dev;
2863 enum pipe pipe;
2864};
2865
2866static int i915_dp_mst_info(struct seq_file *m, void *unused)
2867{
2868 struct drm_info_node *node = (struct drm_info_node *) m->private;
2869 struct drm_device *dev = node->minor->dev;
2870 struct drm_encoder *encoder;
2871 struct intel_encoder *intel_encoder;
2872 struct intel_digital_port *intel_dig_port;
2873 drm_modeset_lock_all(dev);
2874 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
2875 intel_encoder = to_intel_encoder(encoder);
2876 if (intel_encoder->type != INTEL_OUTPUT_DISPLAYPORT)
2877 continue;
2878 intel_dig_port = enc_to_dig_port(encoder);
2879 if (!intel_dig_port->dp.can_mst)
2880 continue;
2881
2882 drm_dp_mst_dump_topology(m, &intel_dig_port->dp.mst_mgr);
2883 }
2884 drm_modeset_unlock_all(dev);
2885 return 0;
2886}
2887
2888static int i915_pipe_crc_open(struct inode *inode, struct file *filep)
2889{
2890 struct pipe_crc_info *info = inode->i_private;
2891 struct drm_i915_private *dev_priv = info->dev->dev_private;
2892 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
2893
2894 if (info->pipe >= INTEL_INFO(info->dev)->num_pipes)
2895 return -ENODEV;
2896
2897 spin_lock_irq(&pipe_crc->lock);
2898
2899 if (pipe_crc->opened) {
2900 spin_unlock_irq(&pipe_crc->lock);
2901 return -EBUSY; /* already open */
2902 }
2903
2904 pipe_crc->opened = true;
2905 filep->private_data = inode->i_private;
2906
2907 spin_unlock_irq(&pipe_crc->lock);
2908
2909 return 0;
2910}
2911
2912static int i915_pipe_crc_release(struct inode *inode, struct file *filep)
2913{
2914 struct pipe_crc_info *info = inode->i_private;
2915 struct drm_i915_private *dev_priv = info->dev->dev_private;
2916 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
2917
2918 spin_lock_irq(&pipe_crc->lock);
2919 pipe_crc->opened = false;
2920 spin_unlock_irq(&pipe_crc->lock);
2921
2922 return 0;
2923}
2924
2925/* (6 fields, 8 chars each, space separated (5) + '\n') */
2926#define PIPE_CRC_LINE_LEN (6 * 8 + 5 + 1)
2927/* account for \'0' */
2928#define PIPE_CRC_BUFFER_LEN (PIPE_CRC_LINE_LEN + 1)
2929
2930static int pipe_crc_data_count(struct intel_pipe_crc *pipe_crc)
2931{
2932 assert_spin_locked(&pipe_crc->lock);
2933 return CIRC_CNT(pipe_crc->head, pipe_crc->tail,
2934 INTEL_PIPE_CRC_ENTRIES_NR);
2935}
2936
2937static ssize_t
2938i915_pipe_crc_read(struct file *filep, char __user *user_buf, size_t count,
2939 loff_t *pos)
2940{
2941 struct pipe_crc_info *info = filep->private_data;
2942 struct drm_device *dev = info->dev;
2943 struct drm_i915_private *dev_priv = dev->dev_private;
2944 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
2945 char buf[PIPE_CRC_BUFFER_LEN];
2946 int n_entries;
2947 ssize_t bytes_read;
2948
2949 /*
2950 * Don't allow user space to provide buffers not big enough to hold
2951 * a line of data.
2952 */
2953 if (count < PIPE_CRC_LINE_LEN)
2954 return -EINVAL;
2955
2956 if (pipe_crc->source == INTEL_PIPE_CRC_SOURCE_NONE)
2957 return 0;
2958
2959 /* nothing to read */
2960 spin_lock_irq(&pipe_crc->lock);
2961 while (pipe_crc_data_count(pipe_crc) == 0) {
2962 int ret;
2963
2964 if (filep->f_flags & O_NONBLOCK) {
2965 spin_unlock_irq(&pipe_crc->lock);
2966 return -EAGAIN;
2967 }
2968
2969 ret = wait_event_interruptible_lock_irq(pipe_crc->wq,
2970 pipe_crc_data_count(pipe_crc), pipe_crc->lock);
2971 if (ret) {
2972 spin_unlock_irq(&pipe_crc->lock);
2973 return ret;
2974 }
2975 }
2976
2977 /* We now have one or more entries to read */
2978 n_entries = count / PIPE_CRC_LINE_LEN;
2979
2980 bytes_read = 0;
2981 while (n_entries > 0) {
2982 struct intel_pipe_crc_entry *entry =
2983 &pipe_crc->entries[pipe_crc->tail];
2984 int ret;
2985
2986 if (CIRC_CNT(pipe_crc->head, pipe_crc->tail,
2987 INTEL_PIPE_CRC_ENTRIES_NR) < 1)
2988 break;
2989
2990 BUILD_BUG_ON_NOT_POWER_OF_2(INTEL_PIPE_CRC_ENTRIES_NR);
2991 pipe_crc->tail = (pipe_crc->tail + 1) & (INTEL_PIPE_CRC_ENTRIES_NR - 1);
2992
2993 bytes_read += snprintf(buf, PIPE_CRC_BUFFER_LEN,
2994 "%8u %8x %8x %8x %8x %8x\n",
2995 entry->frame, entry->crc[0],
2996 entry->crc[1], entry->crc[2],
2997 entry->crc[3], entry->crc[4]);
2998
2999 spin_unlock_irq(&pipe_crc->lock);
3000
3001 ret = copy_to_user(user_buf, buf, PIPE_CRC_LINE_LEN);
3002 if (ret == PIPE_CRC_LINE_LEN)
3003 return -EFAULT;
3004
3005 user_buf += PIPE_CRC_LINE_LEN;
3006 n_entries--;
3007
3008 spin_lock_irq(&pipe_crc->lock);
3009 }
3010
3011 spin_unlock_irq(&pipe_crc->lock);
3012
3013 return bytes_read;
3014}
3015
3016static const struct file_operations i915_pipe_crc_fops = {
3017 .owner = THIS_MODULE,
3018 .open = i915_pipe_crc_open,
3019 .read = i915_pipe_crc_read,
3020 .release = i915_pipe_crc_release,
3021};
3022
3023static struct pipe_crc_info i915_pipe_crc_data[I915_MAX_PIPES] = {
3024 {
3025 .name = "i915_pipe_A_crc",
3026 .pipe = PIPE_A,
3027 },
3028 {
3029 .name = "i915_pipe_B_crc",
3030 .pipe = PIPE_B,
3031 },
3032 {
3033 .name = "i915_pipe_C_crc",
3034 .pipe = PIPE_C,
3035 },
3036};
3037
3038static int i915_pipe_crc_create(struct dentry *root, struct drm_minor *minor,
3039 enum pipe pipe)
3040{
3041 struct drm_device *dev = minor->dev;
3042 struct dentry *ent;
3043 struct pipe_crc_info *info = &i915_pipe_crc_data[pipe];
3044
3045 info->dev = dev;
3046 ent = debugfs_create_file(info->name, S_IRUGO, root, info,
3047 &i915_pipe_crc_fops);
3048 if (!ent)
3049 return -ENOMEM;
3050
3051 return drm_add_fake_info_node(minor, ent, info);
3052}
3053
3054static const char * const pipe_crc_sources[] = {
3055 "none",
3056 "plane1",
3057 "plane2",
3058 "pf",
3059 "pipe",
3060 "TV",
3061 "DP-B",
3062 "DP-C",
3063 "DP-D",
3064 "auto",
3065};
3066
3067static const char *pipe_crc_source_name(enum intel_pipe_crc_source source)
3068{
3069 BUILD_BUG_ON(ARRAY_SIZE(pipe_crc_sources) != INTEL_PIPE_CRC_SOURCE_MAX);
3070 return pipe_crc_sources[source];
3071}
3072
3073static int display_crc_ctl_show(struct seq_file *m, void *data)
3074{
3075 struct drm_device *dev = m->private;
3076 struct drm_i915_private *dev_priv = dev->dev_private;
3077 int i;
3078
3079 for (i = 0; i < I915_MAX_PIPES; i++)
3080 seq_printf(m, "%c %s\n", pipe_name(i),
3081 pipe_crc_source_name(dev_priv->pipe_crc[i].source));
3082
3083 return 0;
3084}
3085
3086static int display_crc_ctl_open(struct inode *inode, struct file *file)
3087{
3088 struct drm_device *dev = inode->i_private;
3089
3090 return single_open(file, display_crc_ctl_show, dev);
3091}
3092
3093static int i8xx_pipe_crc_ctl_reg(enum intel_pipe_crc_source *source,
3094 uint32_t *val)
3095{
3096 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
3097 *source = INTEL_PIPE_CRC_SOURCE_PIPE;
3098
3099 switch (*source) {
3100 case INTEL_PIPE_CRC_SOURCE_PIPE:
3101 *val = PIPE_CRC_ENABLE | PIPE_CRC_INCLUDE_BORDER_I8XX;
3102 break;
3103 case INTEL_PIPE_CRC_SOURCE_NONE:
3104 *val = 0;
3105 break;
3106 default:
3107 return -EINVAL;
3108 }
3109
3110 return 0;
3111}
3112
3113static int i9xx_pipe_crc_auto_source(struct drm_device *dev, enum pipe pipe,
3114 enum intel_pipe_crc_source *source)
3115{
3116 struct intel_encoder *encoder;
3117 struct intel_crtc *crtc;
3118 struct intel_digital_port *dig_port;
3119 int ret = 0;
3120
3121 *source = INTEL_PIPE_CRC_SOURCE_PIPE;
3122
3123 drm_modeset_lock_all(dev);
3124 for_each_intel_encoder(dev, encoder) {
3125 if (!encoder->base.crtc)
3126 continue;
3127
3128 crtc = to_intel_crtc(encoder->base.crtc);
3129
3130 if (crtc->pipe != pipe)
3131 continue;
3132
3133 switch (encoder->type) {
3134 case INTEL_OUTPUT_TVOUT:
3135 *source = INTEL_PIPE_CRC_SOURCE_TV;
3136 break;
3137 case INTEL_OUTPUT_DISPLAYPORT:
3138 case INTEL_OUTPUT_EDP:
3139 dig_port = enc_to_dig_port(&encoder->base);
3140 switch (dig_port->port) {
3141 case PORT_B:
3142 *source = INTEL_PIPE_CRC_SOURCE_DP_B;
3143 break;
3144 case PORT_C:
3145 *source = INTEL_PIPE_CRC_SOURCE_DP_C;
3146 break;
3147 case PORT_D:
3148 *source = INTEL_PIPE_CRC_SOURCE_DP_D;
3149 break;
3150 default:
3151 WARN(1, "nonexisting DP port %c\n",
3152 port_name(dig_port->port));
3153 break;
3154 }
3155 break;
3156 default:
3157 break;
3158 }
3159 }
3160 drm_modeset_unlock_all(dev);
3161
3162 return ret;
3163}
3164
3165static int vlv_pipe_crc_ctl_reg(struct drm_device *dev,
3166 enum pipe pipe,
3167 enum intel_pipe_crc_source *source,
3168 uint32_t *val)
3169{
3170 struct drm_i915_private *dev_priv = dev->dev_private;
3171 bool need_stable_symbols = false;
3172
3173 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO) {
3174 int ret = i9xx_pipe_crc_auto_source(dev, pipe, source);
3175 if (ret)
3176 return ret;
3177 }
3178
3179 switch (*source) {
3180 case INTEL_PIPE_CRC_SOURCE_PIPE:
3181 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_VLV;
3182 break;
3183 case INTEL_PIPE_CRC_SOURCE_DP_B:
3184 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_B_VLV;
3185 need_stable_symbols = true;
3186 break;
3187 case INTEL_PIPE_CRC_SOURCE_DP_C:
3188 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_C_VLV;
3189 need_stable_symbols = true;
3190 break;
3191 case INTEL_PIPE_CRC_SOURCE_DP_D:
3192 if (!IS_CHERRYVIEW(dev))
3193 return -EINVAL;
3194 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_D_VLV;
3195 need_stable_symbols = true;
3196 break;
3197 case INTEL_PIPE_CRC_SOURCE_NONE:
3198 *val = 0;
3199 break;
3200 default:
3201 return -EINVAL;
3202 }
3203
3204 /*
3205 * When the pipe CRC tap point is after the transcoders we need
3206 * to tweak symbol-level features to produce a deterministic series of
3207 * symbols for a given frame. We need to reset those features only once
3208 * a frame (instead of every nth symbol):
3209 * - DC-balance: used to ensure a better clock recovery from the data
3210 * link (SDVO)
3211 * - DisplayPort scrambling: used for EMI reduction
3212 */
3213 if (need_stable_symbols) {
3214 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
3215
3216 tmp |= DC_BALANCE_RESET_VLV;
3217 switch (pipe) {
3218 case PIPE_A:
3219 tmp |= PIPE_A_SCRAMBLE_RESET;
3220 break;
3221 case PIPE_B:
3222 tmp |= PIPE_B_SCRAMBLE_RESET;
3223 break;
3224 case PIPE_C:
3225 tmp |= PIPE_C_SCRAMBLE_RESET;
3226 break;
3227 default:
3228 return -EINVAL;
3229 }
3230 I915_WRITE(PORT_DFT2_G4X, tmp);
3231 }
3232
3233 return 0;
3234}
3235
3236static int i9xx_pipe_crc_ctl_reg(struct drm_device *dev,
3237 enum pipe pipe,
3238 enum intel_pipe_crc_source *source,
3239 uint32_t *val)
3240{
3241 struct drm_i915_private *dev_priv = dev->dev_private;
3242 bool need_stable_symbols = false;
3243
3244 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO) {
3245 int ret = i9xx_pipe_crc_auto_source(dev, pipe, source);
3246 if (ret)
3247 return ret;
3248 }
3249
3250 switch (*source) {
3251 case INTEL_PIPE_CRC_SOURCE_PIPE:
3252 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_I9XX;
3253 break;
3254 case INTEL_PIPE_CRC_SOURCE_TV:
3255 if (!SUPPORTS_TV(dev))
3256 return -EINVAL;
3257 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_TV_PRE;
3258 break;
3259 case INTEL_PIPE_CRC_SOURCE_DP_B:
3260 if (!IS_G4X(dev))
3261 return -EINVAL;
3262 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_B_G4X;
3263 need_stable_symbols = true;
3264 break;
3265 case INTEL_PIPE_CRC_SOURCE_DP_C:
3266 if (!IS_G4X(dev))
3267 return -EINVAL;
3268 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_C_G4X;
3269 need_stable_symbols = true;
3270 break;
3271 case INTEL_PIPE_CRC_SOURCE_DP_D:
3272 if (!IS_G4X(dev))
3273 return -EINVAL;
3274 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_D_G4X;
3275 need_stable_symbols = true;
3276 break;
3277 case INTEL_PIPE_CRC_SOURCE_NONE:
3278 *val = 0;
3279 break;
3280 default:
3281 return -EINVAL;
3282 }
3283
3284 /*
3285 * When the pipe CRC tap point is after the transcoders we need
3286 * to tweak symbol-level features to produce a deterministic series of
3287 * symbols for a given frame. We need to reset those features only once
3288 * a frame (instead of every nth symbol):
3289 * - DC-balance: used to ensure a better clock recovery from the data
3290 * link (SDVO)
3291 * - DisplayPort scrambling: used for EMI reduction
3292 */
3293 if (need_stable_symbols) {
3294 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
3295
3296 WARN_ON(!IS_G4X(dev));
3297
3298 I915_WRITE(PORT_DFT_I9XX,
3299 I915_READ(PORT_DFT_I9XX) | DC_BALANCE_RESET);
3300
3301 if (pipe == PIPE_A)
3302 tmp |= PIPE_A_SCRAMBLE_RESET;
3303 else
3304 tmp |= PIPE_B_SCRAMBLE_RESET;
3305
3306 I915_WRITE(PORT_DFT2_G4X, tmp);
3307 }
3308
3309 return 0;
3310}
3311
3312static void vlv_undo_pipe_scramble_reset(struct drm_device *dev,
3313 enum pipe pipe)
3314{
3315 struct drm_i915_private *dev_priv = dev->dev_private;
3316 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
3317
3318 switch (pipe) {
3319 case PIPE_A:
3320 tmp &= ~PIPE_A_SCRAMBLE_RESET;
3321 break;
3322 case PIPE_B:
3323 tmp &= ~PIPE_B_SCRAMBLE_RESET;
3324 break;
3325 case PIPE_C:
3326 tmp &= ~PIPE_C_SCRAMBLE_RESET;
3327 break;
3328 default:
3329 return;
3330 }
3331 if (!(tmp & PIPE_SCRAMBLE_RESET_MASK))
3332 tmp &= ~DC_BALANCE_RESET_VLV;
3333 I915_WRITE(PORT_DFT2_G4X, tmp);
3334
3335}
3336
3337static void g4x_undo_pipe_scramble_reset(struct drm_device *dev,
3338 enum pipe pipe)
3339{
3340 struct drm_i915_private *dev_priv = dev->dev_private;
3341 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
3342
3343 if (pipe == PIPE_A)
3344 tmp &= ~PIPE_A_SCRAMBLE_RESET;
3345 else
3346 tmp &= ~PIPE_B_SCRAMBLE_RESET;
3347 I915_WRITE(PORT_DFT2_G4X, tmp);
3348
3349 if (!(tmp & PIPE_SCRAMBLE_RESET_MASK)) {
3350 I915_WRITE(PORT_DFT_I9XX,
3351 I915_READ(PORT_DFT_I9XX) & ~DC_BALANCE_RESET);
3352 }
3353}
3354
3355static int ilk_pipe_crc_ctl_reg(enum intel_pipe_crc_source *source,
3356 uint32_t *val)
3357{
3358 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
3359 *source = INTEL_PIPE_CRC_SOURCE_PIPE;
3360
3361 switch (*source) {
3362 case INTEL_PIPE_CRC_SOURCE_PLANE1:
3363 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_ILK;
3364 break;
3365 case INTEL_PIPE_CRC_SOURCE_PLANE2:
3366 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_ILK;
3367 break;
3368 case INTEL_PIPE_CRC_SOURCE_PIPE:
3369 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_ILK;
3370 break;
3371 case INTEL_PIPE_CRC_SOURCE_NONE:
3372 *val = 0;
3373 break;
3374 default:
3375 return -EINVAL;
3376 }
3377
3378 return 0;
3379}
3380
3381static void hsw_trans_edp_pipe_A_crc_wa(struct drm_device *dev)
3382{
3383 struct drm_i915_private *dev_priv = dev->dev_private;
3384 struct intel_crtc *crtc =
3385 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_A]);
3386
3387 drm_modeset_lock_all(dev);
3388 /*
3389 * If we use the eDP transcoder we need to make sure that we don't
3390 * bypass the pfit, since otherwise the pipe CRC source won't work. Only
3391 * relevant on hsw with pipe A when using the always-on power well
3392 * routing.
3393 */
3394 if (crtc->config->cpu_transcoder == TRANSCODER_EDP &&
3395 !crtc->config->pch_pfit.enabled) {
3396 crtc->config->pch_pfit.force_thru = true;
3397
3398 intel_display_power_get(dev_priv,
3399 POWER_DOMAIN_PIPE_PANEL_FITTER(PIPE_A));
3400
3401 dev_priv->display.crtc_disable(&crtc->base);
3402 dev_priv->display.crtc_enable(&crtc->base);
3403 }
3404 drm_modeset_unlock_all(dev);
3405}
3406
3407static void hsw_undo_trans_edp_pipe_A_crc_wa(struct drm_device *dev)
3408{
3409 struct drm_i915_private *dev_priv = dev->dev_private;
3410 struct intel_crtc *crtc =
3411 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_A]);
3412
3413 drm_modeset_lock_all(dev);
3414 /*
3415 * If we use the eDP transcoder we need to make sure that we don't
3416 * bypass the pfit, since otherwise the pipe CRC source won't work. Only
3417 * relevant on hsw with pipe A when using the always-on power well
3418 * routing.
3419 */
3420 if (crtc->config->pch_pfit.force_thru) {
3421 crtc->config->pch_pfit.force_thru = false;
3422
3423 dev_priv->display.crtc_disable(&crtc->base);
3424 dev_priv->display.crtc_enable(&crtc->base);
3425
3426 intel_display_power_put(dev_priv,
3427 POWER_DOMAIN_PIPE_PANEL_FITTER(PIPE_A));
3428 }
3429 drm_modeset_unlock_all(dev);
3430}
3431
3432static int ivb_pipe_crc_ctl_reg(struct drm_device *dev,
3433 enum pipe pipe,
3434 enum intel_pipe_crc_source *source,
3435 uint32_t *val)
3436{
3437 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
3438 *source = INTEL_PIPE_CRC_SOURCE_PF;
3439
3440 switch (*source) {
3441 case INTEL_PIPE_CRC_SOURCE_PLANE1:
3442 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_IVB;
3443 break;
3444 case INTEL_PIPE_CRC_SOURCE_PLANE2:
3445 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_IVB;
3446 break;
3447 case INTEL_PIPE_CRC_SOURCE_PF:
3448 if (IS_HASWELL(dev) && pipe == PIPE_A)
3449 hsw_trans_edp_pipe_A_crc_wa(dev);
3450
3451 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PF_IVB;
3452 break;
3453 case INTEL_PIPE_CRC_SOURCE_NONE:
3454 *val = 0;
3455 break;
3456 default:
3457 return -EINVAL;
3458 }
3459
3460 return 0;
3461}
3462
3463static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe,
3464 enum intel_pipe_crc_source source)
3465{
3466 struct drm_i915_private *dev_priv = dev->dev_private;
3467 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];
3468 struct intel_crtc *crtc = to_intel_crtc(intel_get_crtc_for_pipe(dev,
3469 pipe));
3470 u32 val = 0; /* shut up gcc */
3471 int ret;
3472
3473 if (pipe_crc->source == source)
3474 return 0;
3475
3476 /* forbid changing the source without going back to 'none' */
3477 if (pipe_crc->source && source)
3478 return -EINVAL;
3479
3480 if (!intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_PIPE(pipe))) {
3481 DRM_DEBUG_KMS("Trying to capture CRC while pipe is off\n");
3482 return -EIO;
3483 }
3484
3485 if (IS_GEN2(dev))
3486 ret = i8xx_pipe_crc_ctl_reg(&source, &val);
3487 else if (INTEL_INFO(dev)->gen < 5)
3488 ret = i9xx_pipe_crc_ctl_reg(dev, pipe, &source, &val);
3489 else if (IS_VALLEYVIEW(dev))
3490 ret = vlv_pipe_crc_ctl_reg(dev, pipe, &source, &val);
3491 else if (IS_GEN5(dev) || IS_GEN6(dev))
3492 ret = ilk_pipe_crc_ctl_reg(&source, &val);
3493 else
3494 ret = ivb_pipe_crc_ctl_reg(dev, pipe, &source, &val);
3495
3496 if (ret != 0)
3497 return ret;
3498
3499 /* none -> real source transition */
3500 if (source) {
3501 struct intel_pipe_crc_entry *entries;
3502
3503 DRM_DEBUG_DRIVER("collecting CRCs for pipe %c, %s\n",
3504 pipe_name(pipe), pipe_crc_source_name(source));
3505
3506 entries = kcalloc(INTEL_PIPE_CRC_ENTRIES_NR,
3507 sizeof(pipe_crc->entries[0]),
3508 GFP_KERNEL);
3509 if (!entries)
3510 return -ENOMEM;
3511
3512 /*
3513 * When IPS gets enabled, the pipe CRC changes. Since IPS gets
3514 * enabled and disabled dynamically based on package C states,
3515 * user space can't make reliable use of the CRCs, so let's just
3516 * completely disable it.
3517 */
3518 hsw_disable_ips(crtc);
3519
3520 spin_lock_irq(&pipe_crc->lock);
3521 kfree(pipe_crc->entries);
3522 pipe_crc->entries = entries;
3523 pipe_crc->head = 0;
3524 pipe_crc->tail = 0;
3525 spin_unlock_irq(&pipe_crc->lock);
3526 }
3527
3528 pipe_crc->source = source;
3529
3530 I915_WRITE(PIPE_CRC_CTL(pipe), val);
3531 POSTING_READ(PIPE_CRC_CTL(pipe));
3532
3533 /* real source -> none transition */
3534 if (source == INTEL_PIPE_CRC_SOURCE_NONE) {
3535 struct intel_pipe_crc_entry *entries;
3536 struct intel_crtc *crtc =
3537 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
3538
3539 DRM_DEBUG_DRIVER("stopping CRCs for pipe %c\n",
3540 pipe_name(pipe));
3541
3542 drm_modeset_lock(&crtc->base.mutex, NULL);
3543 if (crtc->active)
3544 intel_wait_for_vblank(dev, pipe);
3545 drm_modeset_unlock(&crtc->base.mutex);
3546
3547 spin_lock_irq(&pipe_crc->lock);
3548 entries = pipe_crc->entries;
3549 pipe_crc->entries = NULL;
3550 pipe_crc->head = 0;
3551 pipe_crc->tail = 0;
3552 spin_unlock_irq(&pipe_crc->lock);
3553
3554 kfree(entries);
3555
3556 if (IS_G4X(dev))
3557 g4x_undo_pipe_scramble_reset(dev, pipe);
3558 else if (IS_VALLEYVIEW(dev))
3559 vlv_undo_pipe_scramble_reset(dev, pipe);
3560 else if (IS_HASWELL(dev) && pipe == PIPE_A)
3561 hsw_undo_trans_edp_pipe_A_crc_wa(dev);
3562
3563 hsw_enable_ips(crtc);
3564 }
3565
3566 return 0;
3567}
3568
3569/*
3570 * Parse pipe CRC command strings:
3571 * command: wsp* object wsp+ name wsp+ source wsp*
3572 * object: 'pipe'
3573 * name: (A | B | C)
3574 * source: (none | plane1 | plane2 | pf)
3575 * wsp: (#0x20 | #0x9 | #0xA)+
3576 *
3577 * eg.:
3578 * "pipe A plane1" -> Start CRC computations on plane1 of pipe A
3579 * "pipe A none" -> Stop CRC
3580 */
3581static int display_crc_ctl_tokenize(char *buf, char *words[], int max_words)
3582{
3583 int n_words = 0;
3584
3585 while (*buf) {
3586 char *end;
3587
3588 /* skip leading white space */
3589 buf = skip_spaces(buf);
3590 if (!*buf)
3591 break; /* end of buffer */
3592
3593 /* find end of word */
3594 for (end = buf; *end && !isspace(*end); end++)
3595 ;
3596
3597 if (n_words == max_words) {
3598 DRM_DEBUG_DRIVER("too many words, allowed <= %d\n",
3599 max_words);
3600 return -EINVAL; /* ran out of words[] before bytes */
3601 }
3602
3603 if (*end)
3604 *end++ = '\0';
3605 words[n_words++] = buf;
3606 buf = end;
3607 }
3608
3609 return n_words;
3610}
3611
3612enum intel_pipe_crc_object {
3613 PIPE_CRC_OBJECT_PIPE,
3614};
3615
3616static const char * const pipe_crc_objects[] = {
3617 "pipe",
3618};
3619
3620static int
3621display_crc_ctl_parse_object(const char *buf, enum intel_pipe_crc_object *o)
3622{
3623 int i;
3624
3625 for (i = 0; i < ARRAY_SIZE(pipe_crc_objects); i++)
3626 if (!strcmp(buf, pipe_crc_objects[i])) {
3627 *o = i;
3628 return 0;
3629 }
3630
3631 return -EINVAL;
3632}
3633
3634static int display_crc_ctl_parse_pipe(const char *buf, enum pipe *pipe)
3635{
3636 const char name = buf[0];
3637
3638 if (name < 'A' || name >= pipe_name(I915_MAX_PIPES))
3639 return -EINVAL;
3640
3641 *pipe = name - 'A';
3642
3643 return 0;
3644}
3645
3646static int
3647display_crc_ctl_parse_source(const char *buf, enum intel_pipe_crc_source *s)
3648{
3649 int i;
3650
3651 for (i = 0; i < ARRAY_SIZE(pipe_crc_sources); i++)
3652 if (!strcmp(buf, pipe_crc_sources[i])) {
3653 *s = i;
3654 return 0;
3655 }
3656
3657 return -EINVAL;
3658}
3659
3660static int display_crc_ctl_parse(struct drm_device *dev, char *buf, size_t len)
3661{
3662#define N_WORDS 3
3663 int n_words;
3664 char *words[N_WORDS];
3665 enum pipe pipe;
3666 enum intel_pipe_crc_object object;
3667 enum intel_pipe_crc_source source;
3668
3669 n_words = display_crc_ctl_tokenize(buf, words, N_WORDS);
3670 if (n_words != N_WORDS) {
3671 DRM_DEBUG_DRIVER("tokenize failed, a command is %d words\n",
3672 N_WORDS);
3673 return -EINVAL;
3674 }
3675
3676 if (display_crc_ctl_parse_object(words[0], &object) < 0) {
3677 DRM_DEBUG_DRIVER("unknown object %s\n", words[0]);
3678 return -EINVAL;
3679 }
3680
3681 if (display_crc_ctl_parse_pipe(words[1], &pipe) < 0) {
3682 DRM_DEBUG_DRIVER("unknown pipe %s\n", words[1]);
3683 return -EINVAL;
3684 }
3685
3686 if (display_crc_ctl_parse_source(words[2], &source) < 0) {
3687 DRM_DEBUG_DRIVER("unknown source %s\n", words[2]);
3688 return -EINVAL;
3689 }
3690
3691 return pipe_crc_set_source(dev, pipe, source);
3692}
3693
3694static ssize_t display_crc_ctl_write(struct file *file, const char __user *ubuf,
3695 size_t len, loff_t *offp)
3696{
3697 struct seq_file *m = file->private_data;
3698 struct drm_device *dev = m->private;
3699 char *tmpbuf;
3700 int ret;
3701
3702 if (len == 0)
3703 return 0;
3704
3705 if (len > PAGE_SIZE - 1) {
3706 DRM_DEBUG_DRIVER("expected <%lu bytes into pipe crc control\n",
3707 PAGE_SIZE);
3708 return -E2BIG;
3709 }
3710
3711 tmpbuf = kmalloc(len + 1, GFP_KERNEL);
3712 if (!tmpbuf)
3713 return -ENOMEM;
3714
3715 if (copy_from_user(tmpbuf, ubuf, len)) {
3716 ret = -EFAULT;
3717 goto out;
3718 }
3719 tmpbuf[len] = '\0';
3720
3721 ret = display_crc_ctl_parse(dev, tmpbuf, len);
3722
3723out:
3724 kfree(tmpbuf);
3725 if (ret < 0)
3726 return ret;
3727
3728 *offp += len;
3729 return len;
3730}
3731
3732static const struct file_operations i915_display_crc_ctl_fops = {
3733 .owner = THIS_MODULE,
3734 .open = display_crc_ctl_open,
3735 .read = seq_read,
3736 .llseek = seq_lseek,
3737 .release = single_release,
3738 .write = display_crc_ctl_write
3739};
3740
3741static void wm_latency_show(struct seq_file *m, const uint16_t wm[8])
3742{
3743 struct drm_device *dev = m->private;
3744 int num_levels = ilk_wm_max_level(dev) + 1;
3745 int level;
3746
3747 drm_modeset_lock_all(dev);
3748
3749 for (level = 0; level < num_levels; level++) {
3750 unsigned int latency = wm[level];
3751
3752 /*
3753 * - WM1+ latency values in 0.5us units
3754 * - latencies are in us on gen9
3755 */
3756 if (INTEL_INFO(dev)->gen >= 9)
3757 latency *= 10;
3758 else if (level > 0)
3759 latency *= 5;
3760
3761 seq_printf(m, "WM%d %u (%u.%u usec)\n",
3762 level, wm[level], latency / 10, latency % 10);
3763 }
3764
3765 drm_modeset_unlock_all(dev);
3766}
3767
3768static int pri_wm_latency_show(struct seq_file *m, void *data)
3769{
3770 struct drm_device *dev = m->private;
3771 struct drm_i915_private *dev_priv = dev->dev_private;
3772 const uint16_t *latencies;
3773
3774 if (INTEL_INFO(dev)->gen >= 9)
3775 latencies = dev_priv->wm.skl_latency;
3776 else
3777 latencies = to_i915(dev)->wm.pri_latency;
3778
3779 wm_latency_show(m, latencies);
3780
3781 return 0;
3782}
3783
3784static int spr_wm_latency_show(struct seq_file *m, void *data)
3785{
3786 struct drm_device *dev = m->private;
3787 struct drm_i915_private *dev_priv = dev->dev_private;
3788 const uint16_t *latencies;
3789
3790 if (INTEL_INFO(dev)->gen >= 9)
3791 latencies = dev_priv->wm.skl_latency;
3792 else
3793 latencies = to_i915(dev)->wm.spr_latency;
3794
3795 wm_latency_show(m, latencies);
3796
3797 return 0;
3798}
3799
3800static int cur_wm_latency_show(struct seq_file *m, void *data)
3801{
3802 struct drm_device *dev = m->private;
3803 struct drm_i915_private *dev_priv = dev->dev_private;
3804 const uint16_t *latencies;
3805
3806 if (INTEL_INFO(dev)->gen >= 9)
3807 latencies = dev_priv->wm.skl_latency;
3808 else
3809 latencies = to_i915(dev)->wm.cur_latency;
3810
3811 wm_latency_show(m, latencies);
3812
3813 return 0;
3814}
3815
3816static int pri_wm_latency_open(struct inode *inode, struct file *file)
3817{
3818 struct drm_device *dev = inode->i_private;
3819
3820 if (HAS_GMCH_DISPLAY(dev))
3821 return -ENODEV;
3822
3823 return single_open(file, pri_wm_latency_show, dev);
3824}
3825
3826static int spr_wm_latency_open(struct inode *inode, struct file *file)
3827{
3828 struct drm_device *dev = inode->i_private;
3829
3830 if (HAS_GMCH_DISPLAY(dev))
3831 return -ENODEV;
3832
3833 return single_open(file, spr_wm_latency_show, dev);
3834}
3835
3836static int cur_wm_latency_open(struct inode *inode, struct file *file)
3837{
3838 struct drm_device *dev = inode->i_private;
3839
3840 if (HAS_GMCH_DISPLAY(dev))
3841 return -ENODEV;
3842
3843 return single_open(file, cur_wm_latency_show, dev);
3844}
3845
3846static ssize_t wm_latency_write(struct file *file, const char __user *ubuf,
3847 size_t len, loff_t *offp, uint16_t wm[8])
3848{
3849 struct seq_file *m = file->private_data;
3850 struct drm_device *dev = m->private;
3851 uint16_t new[8] = { 0 };
3852 int num_levels = ilk_wm_max_level(dev) + 1;
3853 int level;
3854 int ret;
3855 char tmp[32];
3856
3857 if (len >= sizeof(tmp))
3858 return -EINVAL;
3859
3860 if (copy_from_user(tmp, ubuf, len))
3861 return -EFAULT;
3862
3863 tmp[len] = '\0';
3864
3865 ret = sscanf(tmp, "%hu %hu %hu %hu %hu %hu %hu %hu",
3866 &new[0], &new[1], &new[2], &new[3],
3867 &new[4], &new[5], &new[6], &new[7]);
3868 if (ret != num_levels)
3869 return -EINVAL;
3870
3871 drm_modeset_lock_all(dev);
3872
3873 for (level = 0; level < num_levels; level++)
3874 wm[level] = new[level];
3875
3876 drm_modeset_unlock_all(dev);
3877
3878 return len;
3879}
3880
3881
3882static ssize_t pri_wm_latency_write(struct file *file, const char __user *ubuf,
3883 size_t len, loff_t *offp)
3884{
3885 struct seq_file *m = file->private_data;
3886 struct drm_device *dev = m->private;
3887 struct drm_i915_private *dev_priv = dev->dev_private;
3888 uint16_t *latencies;
3889
3890 if (INTEL_INFO(dev)->gen >= 9)
3891 latencies = dev_priv->wm.skl_latency;
3892 else
3893 latencies = to_i915(dev)->wm.pri_latency;
3894
3895 return wm_latency_write(file, ubuf, len, offp, latencies);
3896}
3897
3898static ssize_t spr_wm_latency_write(struct file *file, const char __user *ubuf,
3899 size_t len, loff_t *offp)
3900{
3901 struct seq_file *m = file->private_data;
3902 struct drm_device *dev = m->private;
3903 struct drm_i915_private *dev_priv = dev->dev_private;
3904 uint16_t *latencies;
3905
3906 if (INTEL_INFO(dev)->gen >= 9)
3907 latencies = dev_priv->wm.skl_latency;
3908 else
3909 latencies = to_i915(dev)->wm.spr_latency;
3910
3911 return wm_latency_write(file, ubuf, len, offp, latencies);
3912}
3913
3914static ssize_t cur_wm_latency_write(struct file *file, const char __user *ubuf,
3915 size_t len, loff_t *offp)
3916{
3917 struct seq_file *m = file->private_data;
3918 struct drm_device *dev = m->private;
3919 struct drm_i915_private *dev_priv = dev->dev_private;
3920 uint16_t *latencies;
3921
3922 if (INTEL_INFO(dev)->gen >= 9)
3923 latencies = dev_priv->wm.skl_latency;
3924 else
3925 latencies = to_i915(dev)->wm.cur_latency;
3926
3927 return wm_latency_write(file, ubuf, len, offp, latencies);
3928}
3929
3930static const struct file_operations i915_pri_wm_latency_fops = {
3931 .owner = THIS_MODULE,
3932 .open = pri_wm_latency_open,
3933 .read = seq_read,
3934 .llseek = seq_lseek,
3935 .release = single_release,
3936 .write = pri_wm_latency_write
3937};
3938
3939static const struct file_operations i915_spr_wm_latency_fops = {
3940 .owner = THIS_MODULE,
3941 .open = spr_wm_latency_open,
3942 .read = seq_read,
3943 .llseek = seq_lseek,
3944 .release = single_release,
3945 .write = spr_wm_latency_write
3946};
3947
3948static const struct file_operations i915_cur_wm_latency_fops = {
3949 .owner = THIS_MODULE,
3950 .open = cur_wm_latency_open,
3951 .read = seq_read,
3952 .llseek = seq_lseek,
3953 .release = single_release,
3954 .write = cur_wm_latency_write
3955};
3956
3957static int
3958i915_wedged_get(void *data, u64 *val)
3959{
3960 struct drm_device *dev = data;
3961 struct drm_i915_private *dev_priv = dev->dev_private;
3962
3963 *val = atomic_read(&dev_priv->gpu_error.reset_counter);
3964
3965 return 0;
3966}
3967
3968static int
3969i915_wedged_set(void *data, u64 val)
3970{
3971 struct drm_device *dev = data;
3972 struct drm_i915_private *dev_priv = dev->dev_private;
3973
3974 /*
3975 * There is no safeguard against this debugfs entry colliding
3976 * with the hangcheck calling same i915_handle_error() in
3977 * parallel, causing an explosion. For now we assume that the
3978 * test harness is responsible enough not to inject gpu hangs
3979 * while it is writing to 'i915_wedged'
3980 */
3981
3982 if (i915_reset_in_progress(&dev_priv->gpu_error))
3983 return -EAGAIN;
3984
3985 intel_runtime_pm_get(dev_priv);
3986
3987 i915_handle_error(dev, val,
3988 "Manually setting wedged to %llu", val);
3989
3990 intel_runtime_pm_put(dev_priv);
3991
3992 return 0;
3993}
3994
3995DEFINE_SIMPLE_ATTRIBUTE(i915_wedged_fops,
3996 i915_wedged_get, i915_wedged_set,
3997 "%llu\n");
3998
3999static int
4000i915_ring_stop_get(void *data, u64 *val)
4001{
4002 struct drm_device *dev = data;
4003 struct drm_i915_private *dev_priv = dev->dev_private;
4004
4005 *val = dev_priv->gpu_error.stop_rings;
4006
4007 return 0;
4008}
4009
4010static int
4011i915_ring_stop_set(void *data, u64 val)
4012{
4013 struct drm_device *dev = data;
4014 struct drm_i915_private *dev_priv = dev->dev_private;
4015 int ret;
4016
4017 DRM_DEBUG_DRIVER("Stopping rings 0x%08llx\n", val);
4018
4019 ret = mutex_lock_interruptible(&dev->struct_mutex);
4020 if (ret)
4021 return ret;
4022
4023 dev_priv->gpu_error.stop_rings = val;
4024 mutex_unlock(&dev->struct_mutex);
4025
4026 return 0;
4027}
4028
4029DEFINE_SIMPLE_ATTRIBUTE(i915_ring_stop_fops,
4030 i915_ring_stop_get, i915_ring_stop_set,
4031 "0x%08llx\n");
4032
4033static int
4034i915_ring_missed_irq_get(void *data, u64 *val)
4035{
4036 struct drm_device *dev = data;
4037 struct drm_i915_private *dev_priv = dev->dev_private;
4038
4039 *val = dev_priv->gpu_error.missed_irq_rings;
4040 return 0;
4041}
4042
4043static int
4044i915_ring_missed_irq_set(void *data, u64 val)
4045{
4046 struct drm_device *dev = data;
4047 struct drm_i915_private *dev_priv = dev->dev_private;
4048 int ret;
4049
4050 /* Lock against concurrent debugfs callers */
4051 ret = mutex_lock_interruptible(&dev->struct_mutex);
4052 if (ret)
4053 return ret;
4054 dev_priv->gpu_error.missed_irq_rings = val;
4055 mutex_unlock(&dev->struct_mutex);
4056
4057 return 0;
4058}
4059
4060DEFINE_SIMPLE_ATTRIBUTE(i915_ring_missed_irq_fops,
4061 i915_ring_missed_irq_get, i915_ring_missed_irq_set,
4062 "0x%08llx\n");
4063
4064static int
4065i915_ring_test_irq_get(void *data, u64 *val)
4066{
4067 struct drm_device *dev = data;
4068 struct drm_i915_private *dev_priv = dev->dev_private;
4069
4070 *val = dev_priv->gpu_error.test_irq_rings;
4071
4072 return 0;
4073}
4074
4075static int
4076i915_ring_test_irq_set(void *data, u64 val)
4077{
4078 struct drm_device *dev = data;
4079 struct drm_i915_private *dev_priv = dev->dev_private;
4080 int ret;
4081
4082 DRM_DEBUG_DRIVER("Masking interrupts on rings 0x%08llx\n", val);
4083
4084 /* Lock against concurrent debugfs callers */
4085 ret = mutex_lock_interruptible(&dev->struct_mutex);
4086 if (ret)
4087 return ret;
4088
4089 dev_priv->gpu_error.test_irq_rings = val;
4090 mutex_unlock(&dev->struct_mutex);
4091
4092 return 0;
4093}
4094
4095DEFINE_SIMPLE_ATTRIBUTE(i915_ring_test_irq_fops,
4096 i915_ring_test_irq_get, i915_ring_test_irq_set,
4097 "0x%08llx\n");
4098
4099#define DROP_UNBOUND 0x1
4100#define DROP_BOUND 0x2
4101#define DROP_RETIRE 0x4
4102#define DROP_ACTIVE 0x8
4103#define DROP_ALL (DROP_UNBOUND | \
4104 DROP_BOUND | \
4105 DROP_RETIRE | \
4106 DROP_ACTIVE)
4107static int
4108i915_drop_caches_get(void *data, u64 *val)
4109{
4110 *val = DROP_ALL;
4111
4112 return 0;
4113}
4114
4115static int
4116i915_drop_caches_set(void *data, u64 val)
4117{
4118 struct drm_device *dev = data;
4119 struct drm_i915_private *dev_priv = dev->dev_private;
4120 int ret;
4121
4122 DRM_DEBUG("Dropping caches: 0x%08llx\n", val);
4123
4124 /* No need to check and wait for gpu resets, only libdrm auto-restarts
4125 * on ioctls on -EAGAIN. */
4126 ret = mutex_lock_interruptible(&dev->struct_mutex);
4127 if (ret)
4128 return ret;
4129
4130 if (val & DROP_ACTIVE) {
4131 ret = i915_gpu_idle(dev);
4132 if (ret)
4133 goto unlock;
4134 }
4135
4136 if (val & (DROP_RETIRE | DROP_ACTIVE))
4137 i915_gem_retire_requests(dev);
4138
4139 if (val & DROP_BOUND)
4140 i915_gem_shrink(dev_priv, LONG_MAX, I915_SHRINK_BOUND);
4141
4142 if (val & DROP_UNBOUND)
4143 i915_gem_shrink(dev_priv, LONG_MAX, I915_SHRINK_UNBOUND);
4144
4145unlock:
4146 mutex_unlock(&dev->struct_mutex);
4147
4148 return ret;
4149}
4150
4151DEFINE_SIMPLE_ATTRIBUTE(i915_drop_caches_fops,
4152 i915_drop_caches_get, i915_drop_caches_set,
4153 "0x%08llx\n");
4154
4155static int
4156i915_max_freq_get(void *data, u64 *val)
4157{
4158 struct drm_device *dev = data;
4159 struct drm_i915_private *dev_priv = dev->dev_private;
4160 int ret;
4161
4162 if (INTEL_INFO(dev)->gen < 6)
4163 return -ENODEV;
4164
4165 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
4166
4167 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
4168 if (ret)
4169 return ret;
4170
4171 *val = intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit);
4172 mutex_unlock(&dev_priv->rps.hw_lock);
4173
4174 return 0;
4175}
4176
4177static int
4178i915_max_freq_set(void *data, u64 val)
4179{
4180 struct drm_device *dev = data;
4181 struct drm_i915_private *dev_priv = dev->dev_private;
4182 u32 rp_state_cap, hw_max, hw_min;
4183 int ret;
4184
4185 if (INTEL_INFO(dev)->gen < 6)
4186 return -ENODEV;
4187
4188 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
4189
4190 DRM_DEBUG_DRIVER("Manually setting max freq to %llu\n", val);
4191
4192 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
4193 if (ret)
4194 return ret;
4195
4196 /*
4197 * Turbo will still be enabled, but won't go above the set value.
4198 */
4199 if (IS_VALLEYVIEW(dev)) {
4200 val = intel_freq_opcode(dev_priv, val);
4201
4202 hw_max = dev_priv->rps.max_freq;
4203 hw_min = dev_priv->rps.min_freq;
4204 } else {
4205 val = intel_freq_opcode(dev_priv, val);
4206
4207 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
4208 hw_max = dev_priv->rps.max_freq;
4209 hw_min = (rp_state_cap >> 16) & 0xff;
4210 }
4211
4212 if (val < hw_min || val > hw_max || val < dev_priv->rps.min_freq_softlimit) {
4213 mutex_unlock(&dev_priv->rps.hw_lock);
4214 return -EINVAL;
4215 }
4216
4217 dev_priv->rps.max_freq_softlimit = val;
4218
4219 intel_set_rps(dev, val);
4220
4221 mutex_unlock(&dev_priv->rps.hw_lock);
4222
4223 return 0;
4224}
4225
4226DEFINE_SIMPLE_ATTRIBUTE(i915_max_freq_fops,
4227 i915_max_freq_get, i915_max_freq_set,
4228 "%llu\n");
4229
4230static int
4231i915_min_freq_get(void *data, u64 *val)
4232{
4233 struct drm_device *dev = data;
4234 struct drm_i915_private *dev_priv = dev->dev_private;
4235 int ret;
4236
4237 if (INTEL_INFO(dev)->gen < 6)
4238 return -ENODEV;
4239
4240 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
4241
4242 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
4243 if (ret)
4244 return ret;
4245
4246 *val = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit);
4247 mutex_unlock(&dev_priv->rps.hw_lock);
4248
4249 return 0;
4250}
4251
4252static int
4253i915_min_freq_set(void *data, u64 val)
4254{
4255 struct drm_device *dev = data;
4256 struct drm_i915_private *dev_priv = dev->dev_private;
4257 u32 rp_state_cap, hw_max, hw_min;
4258 int ret;
4259
4260 if (INTEL_INFO(dev)->gen < 6)
4261 return -ENODEV;
4262
4263 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
4264
4265 DRM_DEBUG_DRIVER("Manually setting min freq to %llu\n", val);
4266
4267 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
4268 if (ret)
4269 return ret;
4270
4271 /*
4272 * Turbo will still be enabled, but won't go below the set value.
4273 */
4274 if (IS_VALLEYVIEW(dev)) {
4275 val = intel_freq_opcode(dev_priv, val);
4276
4277 hw_max = dev_priv->rps.max_freq;
4278 hw_min = dev_priv->rps.min_freq;
4279 } else {
4280 val = intel_freq_opcode(dev_priv, val);
4281
4282 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
4283 hw_max = dev_priv->rps.max_freq;
4284 hw_min = (rp_state_cap >> 16) & 0xff;
4285 }
4286
4287 if (val < hw_min || val > hw_max || val > dev_priv->rps.max_freq_softlimit) {
4288 mutex_unlock(&dev_priv->rps.hw_lock);
4289 return -EINVAL;
4290 }
4291
4292 dev_priv->rps.min_freq_softlimit = val;
4293
4294 intel_set_rps(dev, val);
4295
4296 mutex_unlock(&dev_priv->rps.hw_lock);
4297
4298 return 0;
4299}
4300
4301DEFINE_SIMPLE_ATTRIBUTE(i915_min_freq_fops,
4302 i915_min_freq_get, i915_min_freq_set,
4303 "%llu\n");
4304
4305static int
4306i915_cache_sharing_get(void *data, u64 *val)
4307{
4308 struct drm_device *dev = data;
4309 struct drm_i915_private *dev_priv = dev->dev_private;
4310 u32 snpcr;
4311 int ret;
4312
4313 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
4314 return -ENODEV;
4315
4316 ret = mutex_lock_interruptible(&dev->struct_mutex);
4317 if (ret)
4318 return ret;
4319 intel_runtime_pm_get(dev_priv);
4320
4321 snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
4322
4323 intel_runtime_pm_put(dev_priv);
4324 mutex_unlock(&dev_priv->dev->struct_mutex);
4325
4326 *val = (snpcr & GEN6_MBC_SNPCR_MASK) >> GEN6_MBC_SNPCR_SHIFT;
4327
4328 return 0;
4329}
4330
4331static int
4332i915_cache_sharing_set(void *data, u64 val)
4333{
4334 struct drm_device *dev = data;
4335 struct drm_i915_private *dev_priv = dev->dev_private;
4336 u32 snpcr;
4337
4338 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
4339 return -ENODEV;
4340
4341 if (val > 3)
4342 return -EINVAL;
4343
4344 intel_runtime_pm_get(dev_priv);
4345 DRM_DEBUG_DRIVER("Manually setting uncore sharing to %llu\n", val);
4346
4347 /* Update the cache sharing policy here as well */
4348 snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
4349 snpcr &= ~GEN6_MBC_SNPCR_MASK;
4350 snpcr |= (val << GEN6_MBC_SNPCR_SHIFT);
4351 I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr);
4352
4353 intel_runtime_pm_put(dev_priv);
4354 return 0;
4355}
4356
4357DEFINE_SIMPLE_ATTRIBUTE(i915_cache_sharing_fops,
4358 i915_cache_sharing_get, i915_cache_sharing_set,
4359 "%llu\n");
4360
4361static int i915_sseu_status(struct seq_file *m, void *unused)
4362{
4363 struct drm_info_node *node = (struct drm_info_node *) m->private;
4364 struct drm_device *dev = node->minor->dev;
4365
4366 if (INTEL_INFO(dev)->gen < 9)
4367 return -ENODEV;
4368
4369 seq_puts(m, "SSEU Device Info\n");
4370 seq_printf(m, " Available Slice Total: %u\n",
4371 INTEL_INFO(dev)->slice_total);
4372 seq_printf(m, " Available Subslice Total: %u\n",
4373 INTEL_INFO(dev)->subslice_total);
4374 seq_printf(m, " Available Subslice Per Slice: %u\n",
4375 INTEL_INFO(dev)->subslice_per_slice);
4376 seq_printf(m, " Available EU Total: %u\n",
4377 INTEL_INFO(dev)->eu_total);
4378 seq_printf(m, " Available EU Per Subslice: %u\n",
4379 INTEL_INFO(dev)->eu_per_subslice);
4380 seq_printf(m, " Has Slice Power Gating: %s\n",
4381 yesno(INTEL_INFO(dev)->has_slice_pg));
4382 seq_printf(m, " Has Subslice Power Gating: %s\n",
4383 yesno(INTEL_INFO(dev)->has_subslice_pg));
4384 seq_printf(m, " Has EU Power Gating: %s\n",
4385 yesno(INTEL_INFO(dev)->has_eu_pg));
4386
4387 return 0;
4388}
4389
4390static int i915_forcewake_open(struct inode *inode, struct file *file)
4391{
4392 struct drm_device *dev = inode->i_private;
4393 struct drm_i915_private *dev_priv = dev->dev_private;
4394
4395 if (INTEL_INFO(dev)->gen < 6)
4396 return 0;
4397
4398 intel_runtime_pm_get(dev_priv);
4399 intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
4400
4401 return 0;
4402}
4403
4404static int i915_forcewake_release(struct inode *inode, struct file *file)
4405{
4406 struct drm_device *dev = inode->i_private;
4407 struct drm_i915_private *dev_priv = dev->dev_private;
4408
4409 if (INTEL_INFO(dev)->gen < 6)
4410 return 0;
4411
4412 intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
4413 intel_runtime_pm_put(dev_priv);
4414
4415 return 0;
4416}
4417
4418static const struct file_operations i915_forcewake_fops = {
4419 .owner = THIS_MODULE,
4420 .open = i915_forcewake_open,
4421 .release = i915_forcewake_release,
4422};
4423
4424static int i915_forcewake_create(struct dentry *root, struct drm_minor *minor)
4425{
4426 struct drm_device *dev = minor->dev;
4427 struct dentry *ent;
4428
4429 ent = debugfs_create_file("i915_forcewake_user",
4430 S_IRUSR,
4431 root, dev,
4432 &i915_forcewake_fops);
4433 if (!ent)
4434 return -ENOMEM;
4435
4436 return drm_add_fake_info_node(minor, ent, &i915_forcewake_fops);
4437}
4438
4439static int i915_debugfs_create(struct dentry *root,
4440 struct drm_minor *minor,
4441 const char *name,
4442 const struct file_operations *fops)
4443{
4444 struct drm_device *dev = minor->dev;
4445 struct dentry *ent;
4446
4447 ent = debugfs_create_file(name,
4448 S_IRUGO | S_IWUSR,
4449 root, dev,
4450 fops);
4451 if (!ent)
4452 return -ENOMEM;
4453
4454 return drm_add_fake_info_node(minor, ent, fops);
4455}
4456
4457static const struct drm_info_list i915_debugfs_list[] = {
4458 {"i915_capabilities", i915_capabilities, 0},
4459 {"i915_gem_objects", i915_gem_object_info, 0},
4460 {"i915_gem_gtt", i915_gem_gtt_info, 0},
4461 {"i915_gem_pinned", i915_gem_gtt_info, 0, (void *) PINNED_LIST},
4462 {"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
4463 {"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST},
4464 {"i915_gem_stolen", i915_gem_stolen_list_info },
4465 {"i915_gem_pageflip", i915_gem_pageflip_info, 0},
4466 {"i915_gem_request", i915_gem_request_info, 0},
4467 {"i915_gem_seqno", i915_gem_seqno_info, 0},
4468 {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
4469 {"i915_gem_interrupt", i915_interrupt_info, 0},
4470 {"i915_gem_hws", i915_hws_info, 0, (void *)RCS},
4471 {"i915_gem_hws_blt", i915_hws_info, 0, (void *)BCS},
4472 {"i915_gem_hws_bsd", i915_hws_info, 0, (void *)VCS},
4473 {"i915_gem_hws_vebox", i915_hws_info, 0, (void *)VECS},
4474 {"i915_gem_batch_pool", i915_gem_batch_pool_info, 0},
4475 {"i915_frequency_info", i915_frequency_info, 0},
4476 {"i915_hangcheck_info", i915_hangcheck_info, 0},
4477 {"i915_drpc_info", i915_drpc_info, 0},
4478 {"i915_emon_status", i915_emon_status, 0},
4479 {"i915_ring_freq_table", i915_ring_freq_table, 0},
4480 {"i915_fbc_status", i915_fbc_status, 0},
4481 {"i915_ips_status", i915_ips_status, 0},
4482 {"i915_sr_status", i915_sr_status, 0},
4483 {"i915_opregion", i915_opregion, 0},
4484 {"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
4485 {"i915_context_status", i915_context_status, 0},
4486 {"i915_dump_lrc", i915_dump_lrc, 0},
4487 {"i915_execlists", i915_execlists, 0},
4488 {"i915_forcewake_domains", i915_forcewake_domains, 0},
4489 {"i915_swizzle_info", i915_swizzle_info, 0},
4490 {"i915_ppgtt_info", i915_ppgtt_info, 0},
4491 {"i915_llc", i915_llc, 0},
4492 {"i915_edp_psr_status", i915_edp_psr_status, 0},
4493 {"i915_sink_crc_eDP1", i915_sink_crc, 0},
4494 {"i915_energy_uJ", i915_energy_uJ, 0},
4495 {"i915_pc8_status", i915_pc8_status, 0},
4496 {"i915_power_domain_info", i915_power_domain_info, 0},
4497 {"i915_display_info", i915_display_info, 0},
4498 {"i915_semaphore_status", i915_semaphore_status, 0},
4499 {"i915_shared_dplls_info", i915_shared_dplls_info, 0},
4500 {"i915_dp_mst_info", i915_dp_mst_info, 0},
4501 {"i915_wa_registers", i915_wa_registers, 0},
4502 {"i915_ddb_info", i915_ddb_info, 0},
4503 {"i915_sseu_status", i915_sseu_status, 0},
4504};
4505#define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
4506
4507static const struct i915_debugfs_files {
4508 const char *name;
4509 const struct file_operations *fops;
4510} i915_debugfs_files[] = {
4511 {"i915_wedged", &i915_wedged_fops},
4512 {"i915_max_freq", &i915_max_freq_fops},
4513 {"i915_min_freq", &i915_min_freq_fops},
4514 {"i915_cache_sharing", &i915_cache_sharing_fops},
4515 {"i915_ring_stop", &i915_ring_stop_fops},
4516 {"i915_ring_missed_irq", &i915_ring_missed_irq_fops},
4517 {"i915_ring_test_irq", &i915_ring_test_irq_fops},
4518 {"i915_gem_drop_caches", &i915_drop_caches_fops},
4519 {"i915_error_state", &i915_error_state_fops},
4520 {"i915_next_seqno", &i915_next_seqno_fops},
4521 {"i915_display_crc_ctl", &i915_display_crc_ctl_fops},
4522 {"i915_pri_wm_latency", &i915_pri_wm_latency_fops},
4523 {"i915_spr_wm_latency", &i915_spr_wm_latency_fops},
4524 {"i915_cur_wm_latency", &i915_cur_wm_latency_fops},
4525 {"i915_fbc_false_color", &i915_fbc_fc_fops},
4526};
4527
4528void intel_display_crc_init(struct drm_device *dev)
4529{
4530 struct drm_i915_private *dev_priv = dev->dev_private;
4531 enum pipe pipe;
4532
4533 for_each_pipe(dev_priv, pipe) {
4534 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];
4535
4536 pipe_crc->opened = false;
4537 spin_lock_init(&pipe_crc->lock);
4538 init_waitqueue_head(&pipe_crc->wq);
4539 }
4540}
4541
4542int i915_debugfs_init(struct drm_minor *minor)
4543{
4544 int ret, i;
4545
4546 ret = i915_forcewake_create(minor->debugfs_root, minor);
4547 if (ret)
4548 return ret;
4549
4550 for (i = 0; i < ARRAY_SIZE(i915_pipe_crc_data); i++) {
4551 ret = i915_pipe_crc_create(minor->debugfs_root, minor, i);
4552 if (ret)
4553 return ret;
4554 }
4555
4556 for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
4557 ret = i915_debugfs_create(minor->debugfs_root, minor,
4558 i915_debugfs_files[i].name,
4559 i915_debugfs_files[i].fops);
4560 if (ret)
4561 return ret;
4562 }
4563
4564 return drm_debugfs_create_files(i915_debugfs_list,
4565 I915_DEBUGFS_ENTRIES,
4566 minor->debugfs_root, minor);
4567}
4568
4569void i915_debugfs_cleanup(struct drm_minor *minor)
4570{
4571 int i;
4572
4573 drm_debugfs_remove_files(i915_debugfs_list,
4574 I915_DEBUGFS_ENTRIES, minor);
4575
4576 drm_debugfs_remove_files((struct drm_info_list *) &i915_forcewake_fops,
4577 1, minor);
4578
4579 for (i = 0; i < ARRAY_SIZE(i915_pipe_crc_data); i++) {
4580 struct drm_info_list *info_list =
4581 (struct drm_info_list *)&i915_pipe_crc_data[i];
4582
4583 drm_debugfs_remove_files(info_list, 1, minor);
4584 }
4585
4586 for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
4587 struct drm_info_list *info_list =
4588 (struct drm_info_list *) i915_debugfs_files[i].fops;
4589
4590 drm_debugfs_remove_files(info_list, 1, minor);
4591 }
4592}
Linux kernel - Deliverables
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