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drm/i915: Restore rps/rc6 on reset
[deliverable/linux.git] / drivers / gpu / drm / i915 / i915_debugfs.c
1 /*
2 * Copyright © 2008 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 *
23 * Authors:
24 * Eric Anholt <eric@anholt.net>
25 * Keith Packard <keithp@keithp.com>
26 *
27 */
28
29 #include <linux/seq_file.h>
30 #include <linux/circ_buf.h>
31 #include <linux/ctype.h>
32 #include <linux/debugfs.h>
33 #include <linux/slab.h>
34 #include <linux/export.h>
35 #include <linux/list_sort.h>
36 #include <asm/msr-index.h>
37 #include <drm/drmP.h>
38 #include "intel_drv.h"
39 #include "intel_ringbuffer.h"
40 #include <drm/i915_drm.h>
41 #include "i915_drv.h"
42
43 enum {
44 ACTIVE_LIST,
45 INACTIVE_LIST,
46 PINNED_LIST,
47 };
48
49 static 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. */
56 static int
57 drm_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
80 static int i915_capabilities(struct seq_file *m, void *data)
81 {
82 struct drm_info_node *node = (struct drm_info_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
97 static const char *get_pin_flag(struct drm_i915_gem_object *obj)
98 {
99 if (obj->user_pin_count > 0)
100 return "P";
101 else if (i915_gem_obj_is_pinned(obj))
102 return "p";
103 else
104 return " ";
105 }
106
107 static const char *get_tiling_flag(struct drm_i915_gem_object *obj)
108 {
109 switch (obj->tiling_mode) {
110 default:
111 case I915_TILING_NONE: return " ";
112 case I915_TILING_X: return "X";
113 case I915_TILING_Y: return "Y";
114 }
115 }
116
117 static inline const char *get_global_flag(struct drm_i915_gem_object *obj)
118 {
119 return obj->has_global_gtt_mapping ? "g" : " ";
120 }
121
122 static void
123 describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
124 {
125 struct i915_vma *vma;
126 int pin_count = 0;
127
128 seq_printf(m, "%pK: %s%s%s %8zdKiB %02x %02x %u %u %u%s%s%s",
129 &obj->base,
130 get_pin_flag(obj),
131 get_tiling_flag(obj),
132 get_global_flag(obj),
133 obj->base.size / 1024,
134 obj->base.read_domains,
135 obj->base.write_domain,
136 obj->last_read_seqno,
137 obj->last_write_seqno,
138 obj->last_fenced_seqno,
139 i915_cache_level_str(obj->cache_level),
140 obj->dirty ? " dirty" : "",
141 obj->madv == I915_MADV_DONTNEED ? " purgeable" : "");
142 if (obj->base.name)
143 seq_printf(m, " (name: %d)", obj->base.name);
144 list_for_each_entry(vma, &obj->vma_list, vma_link)
145 if (vma->pin_count > 0)
146 pin_count++;
147 seq_printf(m, " (pinned x %d)", pin_count);
148 if (obj->pin_display)
149 seq_printf(m, " (display)");
150 if (obj->fence_reg != I915_FENCE_REG_NONE)
151 seq_printf(m, " (fence: %d)", obj->fence_reg);
152 list_for_each_entry(vma, &obj->vma_list, vma_link) {
153 if (!i915_is_ggtt(vma->vm))
154 seq_puts(m, " (pp");
155 else
156 seq_puts(m, " (g");
157 seq_printf(m, "gtt offset: %08lx, size: %08lx)",
158 vma->node.start, vma->node.size);
159 }
160 if (obj->stolen)
161 seq_printf(m, " (stolen: %08lx)", obj->stolen->start);
162 if (obj->pin_mappable || obj->fault_mappable) {
163 char s[3], *t = s;
164 if (obj->pin_mappable)
165 *t++ = 'p';
166 if (obj->fault_mappable)
167 *t++ = 'f';
168 *t = '\0';
169 seq_printf(m, " (%s mappable)", s);
170 }
171 if (obj->ring != NULL)
172 seq_printf(m, " (%s)", obj->ring->name);
173 }
174
175 static void describe_ctx(struct seq_file *m, struct i915_hw_context *ctx)
176 {
177 seq_putc(m, ctx->is_initialized ? 'I' : 'i');
178 seq_putc(m, ctx->remap_slice ? 'R' : 'r');
179 seq_putc(m, ' ');
180 }
181
182 static int i915_gem_object_list_info(struct seq_file *m, void *data)
183 {
184 struct drm_info_node *node = (struct drm_info_node *) m->private;
185 uintptr_t list = (uintptr_t) node->info_ent->data;
186 struct list_head *head;
187 struct drm_device *dev = node->minor->dev;
188 struct drm_i915_private *dev_priv = dev->dev_private;
189 struct i915_address_space *vm = &dev_priv->gtt.base;
190 struct i915_vma *vma;
191 size_t total_obj_size, total_gtt_size;
192 int count, ret;
193
194 ret = mutex_lock_interruptible(&dev->struct_mutex);
195 if (ret)
196 return ret;
197
198 /* FIXME: the user of this interface might want more than just GGTT */
199 switch (list) {
200 case ACTIVE_LIST:
201 seq_puts(m, "Active:\n");
202 head = &vm->active_list;
203 break;
204 case INACTIVE_LIST:
205 seq_puts(m, "Inactive:\n");
206 head = &vm->inactive_list;
207 break;
208 default:
209 mutex_unlock(&dev->struct_mutex);
210 return -EINVAL;
211 }
212
213 total_obj_size = total_gtt_size = count = 0;
214 list_for_each_entry(vma, head, mm_list) {
215 seq_printf(m, " ");
216 describe_obj(m, vma->obj);
217 seq_printf(m, "\n");
218 total_obj_size += vma->obj->base.size;
219 total_gtt_size += vma->node.size;
220 count++;
221 }
222 mutex_unlock(&dev->struct_mutex);
223
224 seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
225 count, total_obj_size, total_gtt_size);
226 return 0;
227 }
228
229 static int obj_rank_by_stolen(void *priv,
230 struct list_head *A, struct list_head *B)
231 {
232 struct drm_i915_gem_object *a =
233 container_of(A, struct drm_i915_gem_object, obj_exec_link);
234 struct drm_i915_gem_object *b =
235 container_of(B, struct drm_i915_gem_object, obj_exec_link);
236
237 return a->stolen->start - b->stolen->start;
238 }
239
240 static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
241 {
242 struct drm_info_node *node = (struct drm_info_node *) m->private;
243 struct drm_device *dev = node->minor->dev;
244 struct drm_i915_private *dev_priv = dev->dev_private;
245 struct drm_i915_gem_object *obj;
246 size_t total_obj_size, total_gtt_size;
247 LIST_HEAD(stolen);
248 int count, ret;
249
250 ret = mutex_lock_interruptible(&dev->struct_mutex);
251 if (ret)
252 return ret;
253
254 total_obj_size = total_gtt_size = count = 0;
255 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
256 if (obj->stolen == NULL)
257 continue;
258
259 list_add(&obj->obj_exec_link, &stolen);
260
261 total_obj_size += obj->base.size;
262 total_gtt_size += i915_gem_obj_ggtt_size(obj);
263 count++;
264 }
265 list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) {
266 if (obj->stolen == NULL)
267 continue;
268
269 list_add(&obj->obj_exec_link, &stolen);
270
271 total_obj_size += obj->base.size;
272 count++;
273 }
274 list_sort(NULL, &stolen, obj_rank_by_stolen);
275 seq_puts(m, "Stolen:\n");
276 while (!list_empty(&stolen)) {
277 obj = list_first_entry(&stolen, typeof(*obj), obj_exec_link);
278 seq_puts(m, " ");
279 describe_obj(m, obj);
280 seq_putc(m, '\n');
281 list_del_init(&obj->obj_exec_link);
282 }
283 mutex_unlock(&dev->struct_mutex);
284
285 seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
286 count, total_obj_size, total_gtt_size);
287 return 0;
288 }
289
290 #define count_objects(list, member) do { \
291 list_for_each_entry(obj, list, member) { \
292 size += i915_gem_obj_ggtt_size(obj); \
293 ++count; \
294 if (obj->map_and_fenceable) { \
295 mappable_size += i915_gem_obj_ggtt_size(obj); \
296 ++mappable_count; \
297 } \
298 } \
299 } while (0)
300
301 struct file_stats {
302 int count;
303 size_t total, active, inactive, unbound;
304 };
305
306 static int per_file_stats(int id, void *ptr, void *data)
307 {
308 struct drm_i915_gem_object *obj = ptr;
309 struct file_stats *stats = data;
310
311 stats->count++;
312 stats->total += obj->base.size;
313
314 if (i915_gem_obj_ggtt_bound(obj)) {
315 if (!list_empty(&obj->ring_list))
316 stats->active += obj->base.size;
317 else
318 stats->inactive += obj->base.size;
319 } else {
320 if (!list_empty(&obj->global_list))
321 stats->unbound += obj->base.size;
322 }
323
324 return 0;
325 }
326
327 #define count_vmas(list, member) do { \
328 list_for_each_entry(vma, list, member) { \
329 size += i915_gem_obj_ggtt_size(vma->obj); \
330 ++count; \
331 if (vma->obj->map_and_fenceable) { \
332 mappable_size += i915_gem_obj_ggtt_size(vma->obj); \
333 ++mappable_count; \
334 } \
335 } \
336 } while (0)
337
338 static int i915_gem_object_info(struct seq_file *m, void* data)
339 {
340 struct drm_info_node *node = (struct drm_info_node *) m->private;
341 struct drm_device *dev = node->minor->dev;
342 struct drm_i915_private *dev_priv = dev->dev_private;
343 u32 count, mappable_count, purgeable_count;
344 size_t size, mappable_size, purgeable_size;
345 struct drm_i915_gem_object *obj;
346 struct i915_address_space *vm = &dev_priv->gtt.base;
347 struct drm_file *file;
348 struct i915_vma *vma;
349 int ret;
350
351 ret = mutex_lock_interruptible(&dev->struct_mutex);
352 if (ret)
353 return ret;
354
355 seq_printf(m, "%u objects, %zu bytes\n",
356 dev_priv->mm.object_count,
357 dev_priv->mm.object_memory);
358
359 size = count = mappable_size = mappable_count = 0;
360 count_objects(&dev_priv->mm.bound_list, global_list);
361 seq_printf(m, "%u [%u] objects, %zu [%zu] bytes in gtt\n",
362 count, mappable_count, size, mappable_size);
363
364 size = count = mappable_size = mappable_count = 0;
365 count_vmas(&vm->active_list, mm_list);
366 seq_printf(m, " %u [%u] active objects, %zu [%zu] bytes\n",
367 count, mappable_count, size, mappable_size);
368
369 size = count = mappable_size = mappable_count = 0;
370 count_vmas(&vm->inactive_list, mm_list);
371 seq_printf(m, " %u [%u] inactive objects, %zu [%zu] bytes\n",
372 count, mappable_count, size, mappable_size);
373
374 size = count = purgeable_size = purgeable_count = 0;
375 list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) {
376 size += obj->base.size, ++count;
377 if (obj->madv == I915_MADV_DONTNEED)
378 purgeable_size += obj->base.size, ++purgeable_count;
379 }
380 seq_printf(m, "%u unbound objects, %zu bytes\n", count, size);
381
382 size = count = mappable_size = mappable_count = 0;
383 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
384 if (obj->fault_mappable) {
385 size += i915_gem_obj_ggtt_size(obj);
386 ++count;
387 }
388 if (obj->pin_mappable) {
389 mappable_size += i915_gem_obj_ggtt_size(obj);
390 ++mappable_count;
391 }
392 if (obj->madv == I915_MADV_DONTNEED) {
393 purgeable_size += obj->base.size;
394 ++purgeable_count;
395 }
396 }
397 seq_printf(m, "%u purgeable objects, %zu bytes\n",
398 purgeable_count, purgeable_size);
399 seq_printf(m, "%u pinned mappable objects, %zu bytes\n",
400 mappable_count, mappable_size);
401 seq_printf(m, "%u fault mappable objects, %zu bytes\n",
402 count, size);
403
404 seq_printf(m, "%zu [%lu] gtt total\n",
405 dev_priv->gtt.base.total,
406 dev_priv->gtt.mappable_end - dev_priv->gtt.base.start);
407
408 seq_putc(m, '\n');
409 list_for_each_entry_reverse(file, &dev->filelist, lhead) {
410 struct file_stats stats;
411 struct task_struct *task;
412
413 memset(&stats, 0, sizeof(stats));
414 idr_for_each(&file->object_idr, per_file_stats, &stats);
415 /*
416 * Although we have a valid reference on file->pid, that does
417 * not guarantee that the task_struct who called get_pid() is
418 * still alive (e.g. get_pid(current) => fork() => exit()).
419 * Therefore, we need to protect this ->comm access using RCU.
420 */
421 rcu_read_lock();
422 task = pid_task(file->pid, PIDTYPE_PID);
423 seq_printf(m, "%s: %u objects, %zu bytes (%zu active, %zu inactive, %zu unbound)\n",
424 task ? task->comm : "<unknown>",
425 stats.count,
426 stats.total,
427 stats.active,
428 stats.inactive,
429 stats.unbound);
430 rcu_read_unlock();
431 }
432
433 mutex_unlock(&dev->struct_mutex);
434
435 return 0;
436 }
437
438 static int i915_gem_gtt_info(struct seq_file *m, void *data)
439 {
440 struct drm_info_node *node = (struct drm_info_node *) m->private;
441 struct drm_device *dev = node->minor->dev;
442 uintptr_t list = (uintptr_t) node->info_ent->data;
443 struct drm_i915_private *dev_priv = dev->dev_private;
444 struct drm_i915_gem_object *obj;
445 size_t total_obj_size, total_gtt_size;
446 int count, ret;
447
448 ret = mutex_lock_interruptible(&dev->struct_mutex);
449 if (ret)
450 return ret;
451
452 total_obj_size = total_gtt_size = count = 0;
453 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
454 if (list == PINNED_LIST && !i915_gem_obj_is_pinned(obj))
455 continue;
456
457 seq_puts(m, " ");
458 describe_obj(m, obj);
459 seq_putc(m, '\n');
460 total_obj_size += obj->base.size;
461 total_gtt_size += i915_gem_obj_ggtt_size(obj);
462 count++;
463 }
464
465 mutex_unlock(&dev->struct_mutex);
466
467 seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
468 count, total_obj_size, total_gtt_size);
469
470 return 0;
471 }
472
473 static int i915_gem_pageflip_info(struct seq_file *m, void *data)
474 {
475 struct drm_info_node *node = (struct drm_info_node *) m->private;
476 struct drm_device *dev = node->minor->dev;
477 unsigned long flags;
478 struct intel_crtc *crtc;
479
480 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
481 const char pipe = pipe_name(crtc->pipe);
482 const char plane = plane_name(crtc->plane);
483 struct intel_unpin_work *work;
484
485 spin_lock_irqsave(&dev->event_lock, flags);
486 work = crtc->unpin_work;
487 if (work == NULL) {
488 seq_printf(m, "No flip due on pipe %c (plane %c)\n",
489 pipe, plane);
490 } else {
491 if (atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
492 seq_printf(m, "Flip queued on pipe %c (plane %c)\n",
493 pipe, plane);
494 } else {
495 seq_printf(m, "Flip pending (waiting for vsync) on pipe %c (plane %c)\n",
496 pipe, plane);
497 }
498 if (work->enable_stall_check)
499 seq_puts(m, "Stall check enabled, ");
500 else
501 seq_puts(m, "Stall check waiting for page flip ioctl, ");
502 seq_printf(m, "%d prepares\n", atomic_read(&work->pending));
503
504 if (work->old_fb_obj) {
505 struct drm_i915_gem_object *obj = work->old_fb_obj;
506 if (obj)
507 seq_printf(m, "Old framebuffer gtt_offset 0x%08lx\n",
508 i915_gem_obj_ggtt_offset(obj));
509 }
510 if (work->pending_flip_obj) {
511 struct drm_i915_gem_object *obj = work->pending_flip_obj;
512 if (obj)
513 seq_printf(m, "New framebuffer gtt_offset 0x%08lx\n",
514 i915_gem_obj_ggtt_offset(obj));
515 }
516 }
517 spin_unlock_irqrestore(&dev->event_lock, flags);
518 }
519
520 return 0;
521 }
522
523 static int i915_gem_request_info(struct seq_file *m, void *data)
524 {
525 struct drm_info_node *node = (struct drm_info_node *) m->private;
526 struct drm_device *dev = node->minor->dev;
527 drm_i915_private_t *dev_priv = dev->dev_private;
528 struct intel_ring_buffer *ring;
529 struct drm_i915_gem_request *gem_request;
530 int ret, count, i;
531
532 ret = mutex_lock_interruptible(&dev->struct_mutex);
533 if (ret)
534 return ret;
535
536 count = 0;
537 for_each_ring(ring, dev_priv, i) {
538 if (list_empty(&ring->request_list))
539 continue;
540
541 seq_printf(m, "%s requests:\n", ring->name);
542 list_for_each_entry(gem_request,
543 &ring->request_list,
544 list) {
545 seq_printf(m, " %d @ %d\n",
546 gem_request->seqno,
547 (int) (jiffies - gem_request->emitted_jiffies));
548 }
549 count++;
550 }
551 mutex_unlock(&dev->struct_mutex);
552
553 if (count == 0)
554 seq_puts(m, "No requests\n");
555
556 return 0;
557 }
558
559 static void i915_ring_seqno_info(struct seq_file *m,
560 struct intel_ring_buffer *ring)
561 {
562 if (ring->get_seqno) {
563 seq_printf(m, "Current sequence (%s): %u\n",
564 ring->name, ring->get_seqno(ring, false));
565 }
566 }
567
568 static int i915_gem_seqno_info(struct seq_file *m, void *data)
569 {
570 struct drm_info_node *node = (struct drm_info_node *) m->private;
571 struct drm_device *dev = node->minor->dev;
572 drm_i915_private_t *dev_priv = dev->dev_private;
573 struct intel_ring_buffer *ring;
574 int ret, i;
575
576 ret = mutex_lock_interruptible(&dev->struct_mutex);
577 if (ret)
578 return ret;
579 intel_runtime_pm_get(dev_priv);
580
581 for_each_ring(ring, dev_priv, i)
582 i915_ring_seqno_info(m, ring);
583
584 intel_runtime_pm_put(dev_priv);
585 mutex_unlock(&dev->struct_mutex);
586
587 return 0;
588 }
589
590
591 static int i915_interrupt_info(struct seq_file *m, void *data)
592 {
593 struct drm_info_node *node = (struct drm_info_node *) m->private;
594 struct drm_device *dev = node->minor->dev;
595 drm_i915_private_t *dev_priv = dev->dev_private;
596 struct intel_ring_buffer *ring;
597 int ret, i, pipe;
598
599 ret = mutex_lock_interruptible(&dev->struct_mutex);
600 if (ret)
601 return ret;
602 intel_runtime_pm_get(dev_priv);
603
604 if (INTEL_INFO(dev)->gen >= 8) {
605 int i;
606 seq_printf(m, "Master Interrupt Control:\t%08x\n",
607 I915_READ(GEN8_MASTER_IRQ));
608
609 for (i = 0; i < 4; i++) {
610 seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
611 i, I915_READ(GEN8_GT_IMR(i)));
612 seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
613 i, I915_READ(GEN8_GT_IIR(i)));
614 seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
615 i, I915_READ(GEN8_GT_IER(i)));
616 }
617
618 for_each_pipe(i) {
619 seq_printf(m, "Pipe %c IMR:\t%08x\n",
620 pipe_name(i),
621 I915_READ(GEN8_DE_PIPE_IMR(i)));
622 seq_printf(m, "Pipe %c IIR:\t%08x\n",
623 pipe_name(i),
624 I915_READ(GEN8_DE_PIPE_IIR(i)));
625 seq_printf(m, "Pipe %c IER:\t%08x\n",
626 pipe_name(i),
627 I915_READ(GEN8_DE_PIPE_IER(i)));
628 }
629
630 seq_printf(m, "Display Engine port interrupt mask:\t%08x\n",
631 I915_READ(GEN8_DE_PORT_IMR));
632 seq_printf(m, "Display Engine port interrupt identity:\t%08x\n",
633 I915_READ(GEN8_DE_PORT_IIR));
634 seq_printf(m, "Display Engine port interrupt enable:\t%08x\n",
635 I915_READ(GEN8_DE_PORT_IER));
636
637 seq_printf(m, "Display Engine misc interrupt mask:\t%08x\n",
638 I915_READ(GEN8_DE_MISC_IMR));
639 seq_printf(m, "Display Engine misc interrupt identity:\t%08x\n",
640 I915_READ(GEN8_DE_MISC_IIR));
641 seq_printf(m, "Display Engine misc interrupt enable:\t%08x\n",
642 I915_READ(GEN8_DE_MISC_IER));
643
644 seq_printf(m, "PCU interrupt mask:\t%08x\n",
645 I915_READ(GEN8_PCU_IMR));
646 seq_printf(m, "PCU interrupt identity:\t%08x\n",
647 I915_READ(GEN8_PCU_IIR));
648 seq_printf(m, "PCU interrupt enable:\t%08x\n",
649 I915_READ(GEN8_PCU_IER));
650 } else if (IS_VALLEYVIEW(dev)) {
651 seq_printf(m, "Display IER:\t%08x\n",
652 I915_READ(VLV_IER));
653 seq_printf(m, "Display IIR:\t%08x\n",
654 I915_READ(VLV_IIR));
655 seq_printf(m, "Display IIR_RW:\t%08x\n",
656 I915_READ(VLV_IIR_RW));
657 seq_printf(m, "Display IMR:\t%08x\n",
658 I915_READ(VLV_IMR));
659 for_each_pipe(pipe)
660 seq_printf(m, "Pipe %c stat:\t%08x\n",
661 pipe_name(pipe),
662 I915_READ(PIPESTAT(pipe)));
663
664 seq_printf(m, "Master IER:\t%08x\n",
665 I915_READ(VLV_MASTER_IER));
666
667 seq_printf(m, "Render IER:\t%08x\n",
668 I915_READ(GTIER));
669 seq_printf(m, "Render IIR:\t%08x\n",
670 I915_READ(GTIIR));
671 seq_printf(m, "Render IMR:\t%08x\n",
672 I915_READ(GTIMR));
673
674 seq_printf(m, "PM IER:\t\t%08x\n",
675 I915_READ(GEN6_PMIER));
676 seq_printf(m, "PM IIR:\t\t%08x\n",
677 I915_READ(GEN6_PMIIR));
678 seq_printf(m, "PM IMR:\t\t%08x\n",
679 I915_READ(GEN6_PMIMR));
680
681 seq_printf(m, "Port hotplug:\t%08x\n",
682 I915_READ(PORT_HOTPLUG_EN));
683 seq_printf(m, "DPFLIPSTAT:\t%08x\n",
684 I915_READ(VLV_DPFLIPSTAT));
685 seq_printf(m, "DPINVGTT:\t%08x\n",
686 I915_READ(DPINVGTT));
687
688 } else if (!HAS_PCH_SPLIT(dev)) {
689 seq_printf(m, "Interrupt enable: %08x\n",
690 I915_READ(IER));
691 seq_printf(m, "Interrupt identity: %08x\n",
692 I915_READ(IIR));
693 seq_printf(m, "Interrupt mask: %08x\n",
694 I915_READ(IMR));
695 for_each_pipe(pipe)
696 seq_printf(m, "Pipe %c stat: %08x\n",
697 pipe_name(pipe),
698 I915_READ(PIPESTAT(pipe)));
699 } else {
700 seq_printf(m, "North Display Interrupt enable: %08x\n",
701 I915_READ(DEIER));
702 seq_printf(m, "North Display Interrupt identity: %08x\n",
703 I915_READ(DEIIR));
704 seq_printf(m, "North Display Interrupt mask: %08x\n",
705 I915_READ(DEIMR));
706 seq_printf(m, "South Display Interrupt enable: %08x\n",
707 I915_READ(SDEIER));
708 seq_printf(m, "South Display Interrupt identity: %08x\n",
709 I915_READ(SDEIIR));
710 seq_printf(m, "South Display Interrupt mask: %08x\n",
711 I915_READ(SDEIMR));
712 seq_printf(m, "Graphics Interrupt enable: %08x\n",
713 I915_READ(GTIER));
714 seq_printf(m, "Graphics Interrupt identity: %08x\n",
715 I915_READ(GTIIR));
716 seq_printf(m, "Graphics Interrupt mask: %08x\n",
717 I915_READ(GTIMR));
718 }
719 for_each_ring(ring, dev_priv, i) {
720 if (INTEL_INFO(dev)->gen >= 6) {
721 seq_printf(m,
722 "Graphics Interrupt mask (%s): %08x\n",
723 ring->name, I915_READ_IMR(ring));
724 }
725 i915_ring_seqno_info(m, ring);
726 }
727 intel_runtime_pm_put(dev_priv);
728 mutex_unlock(&dev->struct_mutex);
729
730 return 0;
731 }
732
733 static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
734 {
735 struct drm_info_node *node = (struct drm_info_node *) m->private;
736 struct drm_device *dev = node->minor->dev;
737 drm_i915_private_t *dev_priv = dev->dev_private;
738 int i, ret;
739
740 ret = mutex_lock_interruptible(&dev->struct_mutex);
741 if (ret)
742 return ret;
743
744 seq_printf(m, "Reserved fences = %d\n", dev_priv->fence_reg_start);
745 seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
746 for (i = 0; i < dev_priv->num_fence_regs; i++) {
747 struct drm_i915_gem_object *obj = dev_priv->fence_regs[i].obj;
748
749 seq_printf(m, "Fence %d, pin count = %d, object = ",
750 i, dev_priv->fence_regs[i].pin_count);
751 if (obj == NULL)
752 seq_puts(m, "unused");
753 else
754 describe_obj(m, obj);
755 seq_putc(m, '\n');
756 }
757
758 mutex_unlock(&dev->struct_mutex);
759 return 0;
760 }
761
762 static int i915_hws_info(struct seq_file *m, void *data)
763 {
764 struct drm_info_node *node = (struct drm_info_node *) m->private;
765 struct drm_device *dev = node->minor->dev;
766 drm_i915_private_t *dev_priv = dev->dev_private;
767 struct intel_ring_buffer *ring;
768 const u32 *hws;
769 int i;
770
771 ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
772 hws = ring->status_page.page_addr;
773 if (hws == NULL)
774 return 0;
775
776 for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
777 seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
778 i * 4,
779 hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
780 }
781 return 0;
782 }
783
784 static ssize_t
785 i915_error_state_write(struct file *filp,
786 const char __user *ubuf,
787 size_t cnt,
788 loff_t *ppos)
789 {
790 struct i915_error_state_file_priv *error_priv = filp->private_data;
791 struct drm_device *dev = error_priv->dev;
792 int ret;
793
794 DRM_DEBUG_DRIVER("Resetting error state\n");
795
796 ret = mutex_lock_interruptible(&dev->struct_mutex);
797 if (ret)
798 return ret;
799
800 i915_destroy_error_state(dev);
801 mutex_unlock(&dev->struct_mutex);
802
803 return cnt;
804 }
805
806 static int i915_error_state_open(struct inode *inode, struct file *file)
807 {
808 struct drm_device *dev = inode->i_private;
809 struct i915_error_state_file_priv *error_priv;
810
811 error_priv = kzalloc(sizeof(*error_priv), GFP_KERNEL);
812 if (!error_priv)
813 return -ENOMEM;
814
815 error_priv->dev = dev;
816
817 i915_error_state_get(dev, error_priv);
818
819 file->private_data = error_priv;
820
821 return 0;
822 }
823
824 static int i915_error_state_release(struct inode *inode, struct file *file)
825 {
826 struct i915_error_state_file_priv *error_priv = file->private_data;
827
828 i915_error_state_put(error_priv);
829 kfree(error_priv);
830
831 return 0;
832 }
833
834 static ssize_t i915_error_state_read(struct file *file, char __user *userbuf,
835 size_t count, loff_t *pos)
836 {
837 struct i915_error_state_file_priv *error_priv = file->private_data;
838 struct drm_i915_error_state_buf error_str;
839 loff_t tmp_pos = 0;
840 ssize_t ret_count = 0;
841 int ret;
842
843 ret = i915_error_state_buf_init(&error_str, count, *pos);
844 if (ret)
845 return ret;
846
847 ret = i915_error_state_to_str(&error_str, error_priv);
848 if (ret)
849 goto out;
850
851 ret_count = simple_read_from_buffer(userbuf, count, &tmp_pos,
852 error_str.buf,
853 error_str.bytes);
854
855 if (ret_count < 0)
856 ret = ret_count;
857 else
858 *pos = error_str.start + ret_count;
859 out:
860 i915_error_state_buf_release(&error_str);
861 return ret ?: ret_count;
862 }
863
864 static const struct file_operations i915_error_state_fops = {
865 .owner = THIS_MODULE,
866 .open = i915_error_state_open,
867 .read = i915_error_state_read,
868 .write = i915_error_state_write,
869 .llseek = default_llseek,
870 .release = i915_error_state_release,
871 };
872
873 static int
874 i915_next_seqno_get(void *data, u64 *val)
875 {
876 struct drm_device *dev = data;
877 drm_i915_private_t *dev_priv = dev->dev_private;
878 int ret;
879
880 ret = mutex_lock_interruptible(&dev->struct_mutex);
881 if (ret)
882 return ret;
883
884 *val = dev_priv->next_seqno;
885 mutex_unlock(&dev->struct_mutex);
886
887 return 0;
888 }
889
890 static int
891 i915_next_seqno_set(void *data, u64 val)
892 {
893 struct drm_device *dev = data;
894 int ret;
895
896 ret = mutex_lock_interruptible(&dev->struct_mutex);
897 if (ret)
898 return ret;
899
900 ret = i915_gem_set_seqno(dev, val);
901 mutex_unlock(&dev->struct_mutex);
902
903 return ret;
904 }
905
906 DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops,
907 i915_next_seqno_get, i915_next_seqno_set,
908 "0x%llx\n");
909
910 static int i915_rstdby_delays(struct seq_file *m, void *unused)
911 {
912 struct drm_info_node *node = (struct drm_info_node *) m->private;
913 struct drm_device *dev = node->minor->dev;
914 drm_i915_private_t *dev_priv = dev->dev_private;
915 u16 crstanddelay;
916 int ret;
917
918 ret = mutex_lock_interruptible(&dev->struct_mutex);
919 if (ret)
920 return ret;
921 intel_runtime_pm_get(dev_priv);
922
923 crstanddelay = I915_READ16(CRSTANDVID);
924
925 intel_runtime_pm_put(dev_priv);
926 mutex_unlock(&dev->struct_mutex);
927
928 seq_printf(m, "w/ctx: %d, w/o ctx: %d\n", (crstanddelay >> 8) & 0x3f, (crstanddelay & 0x3f));
929
930 return 0;
931 }
932
933 static int i915_cur_delayinfo(struct seq_file *m, void *unused)
934 {
935 struct drm_info_node *node = (struct drm_info_node *) m->private;
936 struct drm_device *dev = node->minor->dev;
937 drm_i915_private_t *dev_priv = dev->dev_private;
938 int ret = 0;
939
940 intel_runtime_pm_get(dev_priv);
941
942 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
943
944 if (IS_GEN5(dev)) {
945 u16 rgvswctl = I915_READ16(MEMSWCTL);
946 u16 rgvstat = I915_READ16(MEMSTAT_ILK);
947
948 seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
949 seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
950 seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
951 MEMSTAT_VID_SHIFT);
952 seq_printf(m, "Current P-state: %d\n",
953 (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
954 } else if ((IS_GEN6(dev) || IS_GEN7(dev)) && !IS_VALLEYVIEW(dev)) {
955 u32 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
956 u32 rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
957 u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
958 u32 rpstat, cagf, reqf;
959 u32 rpupei, rpcurup, rpprevup;
960 u32 rpdownei, rpcurdown, rpprevdown;
961 int max_freq;
962
963 /* RPSTAT1 is in the GT power well */
964 ret = mutex_lock_interruptible(&dev->struct_mutex);
965 if (ret)
966 goto out;
967
968 gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL);
969
970 reqf = I915_READ(GEN6_RPNSWREQ);
971 reqf &= ~GEN6_TURBO_DISABLE;
972 if (IS_HASWELL(dev))
973 reqf >>= 24;
974 else
975 reqf >>= 25;
976 reqf *= GT_FREQUENCY_MULTIPLIER;
977
978 rpstat = I915_READ(GEN6_RPSTAT1);
979 rpupei = I915_READ(GEN6_RP_CUR_UP_EI);
980 rpcurup = I915_READ(GEN6_RP_CUR_UP);
981 rpprevup = I915_READ(GEN6_RP_PREV_UP);
982 rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI);
983 rpcurdown = I915_READ(GEN6_RP_CUR_DOWN);
984 rpprevdown = I915_READ(GEN6_RP_PREV_DOWN);
985 if (IS_HASWELL(dev))
986 cagf = (rpstat & HSW_CAGF_MASK) >> HSW_CAGF_SHIFT;
987 else
988 cagf = (rpstat & GEN6_CAGF_MASK) >> GEN6_CAGF_SHIFT;
989 cagf *= GT_FREQUENCY_MULTIPLIER;
990
991 gen6_gt_force_wake_put(dev_priv, FORCEWAKE_ALL);
992 mutex_unlock(&dev->struct_mutex);
993
994 seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
995 seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
996 seq_printf(m, "Render p-state ratio: %d\n",
997 (gt_perf_status & 0xff00) >> 8);
998 seq_printf(m, "Render p-state VID: %d\n",
999 gt_perf_status & 0xff);
1000 seq_printf(m, "Render p-state limit: %d\n",
1001 rp_state_limits & 0xff);
1002 seq_printf(m, "RPNSWREQ: %dMHz\n", reqf);
1003 seq_printf(m, "CAGF: %dMHz\n", cagf);
1004 seq_printf(m, "RP CUR UP EI: %dus\n", rpupei &
1005 GEN6_CURICONT_MASK);
1006 seq_printf(m, "RP CUR UP: %dus\n", rpcurup &
1007 GEN6_CURBSYTAVG_MASK);
1008 seq_printf(m, "RP PREV UP: %dus\n", rpprevup &
1009 GEN6_CURBSYTAVG_MASK);
1010 seq_printf(m, "RP CUR DOWN EI: %dus\n", rpdownei &
1011 GEN6_CURIAVG_MASK);
1012 seq_printf(m, "RP CUR DOWN: %dus\n", rpcurdown &
1013 GEN6_CURBSYTAVG_MASK);
1014 seq_printf(m, "RP PREV DOWN: %dus\n", rpprevdown &
1015 GEN6_CURBSYTAVG_MASK);
1016
1017 max_freq = (rp_state_cap & 0xff0000) >> 16;
1018 seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
1019 max_freq * GT_FREQUENCY_MULTIPLIER);
1020
1021 max_freq = (rp_state_cap & 0xff00) >> 8;
1022 seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
1023 max_freq * GT_FREQUENCY_MULTIPLIER);
1024
1025 max_freq = rp_state_cap & 0xff;
1026 seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
1027 max_freq * GT_FREQUENCY_MULTIPLIER);
1028
1029 seq_printf(m, "Max overclocked frequency: %dMHz\n",
1030 dev_priv->rps.hw_max * GT_FREQUENCY_MULTIPLIER);
1031 } else if (IS_VALLEYVIEW(dev)) {
1032 u32 freq_sts, val;
1033
1034 mutex_lock(&dev_priv->rps.hw_lock);
1035 freq_sts = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
1036 seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
1037 seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
1038
1039 val = valleyview_rps_max_freq(dev_priv);
1040 seq_printf(m, "max GPU freq: %d MHz\n",
1041 vlv_gpu_freq(dev_priv, val));
1042
1043 val = valleyview_rps_min_freq(dev_priv);
1044 seq_printf(m, "min GPU freq: %d MHz\n",
1045 vlv_gpu_freq(dev_priv, val));
1046
1047 seq_printf(m, "current GPU freq: %d MHz\n",
1048 vlv_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff));
1049 mutex_unlock(&dev_priv->rps.hw_lock);
1050 } else {
1051 seq_puts(m, "no P-state info available\n");
1052 }
1053
1054 out:
1055 intel_runtime_pm_put(dev_priv);
1056 return ret;
1057 }
1058
1059 static int i915_delayfreq_table(struct seq_file *m, void *unused)
1060 {
1061 struct drm_info_node *node = (struct drm_info_node *) m->private;
1062 struct drm_device *dev = node->minor->dev;
1063 drm_i915_private_t *dev_priv = dev->dev_private;
1064 u32 delayfreq;
1065 int ret, i;
1066
1067 ret = mutex_lock_interruptible(&dev->struct_mutex);
1068 if (ret)
1069 return ret;
1070 intel_runtime_pm_get(dev_priv);
1071
1072 for (i = 0; i < 16; i++) {
1073 delayfreq = I915_READ(PXVFREQ_BASE + i * 4);
1074 seq_printf(m, "P%02dVIDFREQ: 0x%08x (VID: %d)\n", i, delayfreq,
1075 (delayfreq & PXVFREQ_PX_MASK) >> PXVFREQ_PX_SHIFT);
1076 }
1077
1078 intel_runtime_pm_put(dev_priv);
1079
1080 mutex_unlock(&dev->struct_mutex);
1081
1082 return 0;
1083 }
1084
1085 static inline int MAP_TO_MV(int map)
1086 {
1087 return 1250 - (map * 25);
1088 }
1089
1090 static int i915_inttoext_table(struct seq_file *m, void *unused)
1091 {
1092 struct drm_info_node *node = (struct drm_info_node *) m->private;
1093 struct drm_device *dev = node->minor->dev;
1094 drm_i915_private_t *dev_priv = dev->dev_private;
1095 u32 inttoext;
1096 int ret, i;
1097
1098 ret = mutex_lock_interruptible(&dev->struct_mutex);
1099 if (ret)
1100 return ret;
1101 intel_runtime_pm_get(dev_priv);
1102
1103 for (i = 1; i <= 32; i++) {
1104 inttoext = I915_READ(INTTOEXT_BASE_ILK + i * 4);
1105 seq_printf(m, "INTTOEXT%02d: 0x%08x\n", i, inttoext);
1106 }
1107
1108 intel_runtime_pm_put(dev_priv);
1109 mutex_unlock(&dev->struct_mutex);
1110
1111 return 0;
1112 }
1113
1114 static int ironlake_drpc_info(struct seq_file *m)
1115 {
1116 struct drm_info_node *node = (struct drm_info_node *) m->private;
1117 struct drm_device *dev = node->minor->dev;
1118 drm_i915_private_t *dev_priv = dev->dev_private;
1119 u32 rgvmodectl, rstdbyctl;
1120 u16 crstandvid;
1121 int ret;
1122
1123 ret = mutex_lock_interruptible(&dev->struct_mutex);
1124 if (ret)
1125 return ret;
1126 intel_runtime_pm_get(dev_priv);
1127
1128 rgvmodectl = I915_READ(MEMMODECTL);
1129 rstdbyctl = I915_READ(RSTDBYCTL);
1130 crstandvid = I915_READ16(CRSTANDVID);
1131
1132 intel_runtime_pm_put(dev_priv);
1133 mutex_unlock(&dev->struct_mutex);
1134
1135 seq_printf(m, "HD boost: %s\n", (rgvmodectl & MEMMODE_BOOST_EN) ?
1136 "yes" : "no");
1137 seq_printf(m, "Boost freq: %d\n",
1138 (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
1139 MEMMODE_BOOST_FREQ_SHIFT);
1140 seq_printf(m, "HW control enabled: %s\n",
1141 rgvmodectl & MEMMODE_HWIDLE_EN ? "yes" : "no");
1142 seq_printf(m, "SW control enabled: %s\n",
1143 rgvmodectl & MEMMODE_SWMODE_EN ? "yes" : "no");
1144 seq_printf(m, "Gated voltage change: %s\n",
1145 rgvmodectl & MEMMODE_RCLK_GATE ? "yes" : "no");
1146 seq_printf(m, "Starting frequency: P%d\n",
1147 (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
1148 seq_printf(m, "Max P-state: P%d\n",
1149 (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
1150 seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
1151 seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
1152 seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
1153 seq_printf(m, "Render standby enabled: %s\n",
1154 (rstdbyctl & RCX_SW_EXIT) ? "no" : "yes");
1155 seq_puts(m, "Current RS state: ");
1156 switch (rstdbyctl & RSX_STATUS_MASK) {
1157 case RSX_STATUS_ON:
1158 seq_puts(m, "on\n");
1159 break;
1160 case RSX_STATUS_RC1:
1161 seq_puts(m, "RC1\n");
1162 break;
1163 case RSX_STATUS_RC1E:
1164 seq_puts(m, "RC1E\n");
1165 break;
1166 case RSX_STATUS_RS1:
1167 seq_puts(m, "RS1\n");
1168 break;
1169 case RSX_STATUS_RS2:
1170 seq_puts(m, "RS2 (RC6)\n");
1171 break;
1172 case RSX_STATUS_RS3:
1173 seq_puts(m, "RC3 (RC6+)\n");
1174 break;
1175 default:
1176 seq_puts(m, "unknown\n");
1177 break;
1178 }
1179
1180 return 0;
1181 }
1182
1183 static int vlv_drpc_info(struct seq_file *m)
1184 {
1185
1186 struct drm_info_node *node = (struct drm_info_node *) m->private;
1187 struct drm_device *dev = node->minor->dev;
1188 struct drm_i915_private *dev_priv = dev->dev_private;
1189 u32 rpmodectl1, rcctl1;
1190 unsigned fw_rendercount = 0, fw_mediacount = 0;
1191
1192 rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
1193 rcctl1 = I915_READ(GEN6_RC_CONTROL);
1194
1195 seq_printf(m, "Video Turbo Mode: %s\n",
1196 yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
1197 seq_printf(m, "Turbo enabled: %s\n",
1198 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1199 seq_printf(m, "HW control enabled: %s\n",
1200 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1201 seq_printf(m, "SW control enabled: %s\n",
1202 yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
1203 GEN6_RP_MEDIA_SW_MODE));
1204 seq_printf(m, "RC6 Enabled: %s\n",
1205 yesno(rcctl1 & (GEN7_RC_CTL_TO_MODE |
1206 GEN6_RC_CTL_EI_MODE(1))));
1207 seq_printf(m, "Render Power Well: %s\n",
1208 (I915_READ(VLV_GTLC_PW_STATUS) &
1209 VLV_GTLC_PW_RENDER_STATUS_MASK) ? "Up" : "Down");
1210 seq_printf(m, "Media Power Well: %s\n",
1211 (I915_READ(VLV_GTLC_PW_STATUS) &
1212 VLV_GTLC_PW_MEDIA_STATUS_MASK) ? "Up" : "Down");
1213
1214 spin_lock_irq(&dev_priv->uncore.lock);
1215 fw_rendercount = dev_priv->uncore.fw_rendercount;
1216 fw_mediacount = dev_priv->uncore.fw_mediacount;
1217 spin_unlock_irq(&dev_priv->uncore.lock);
1218
1219 seq_printf(m, "Forcewake Render Count = %u\n", fw_rendercount);
1220 seq_printf(m, "Forcewake Media Count = %u\n", fw_mediacount);
1221
1222
1223 return 0;
1224 }
1225
1226
1227 static int gen6_drpc_info(struct seq_file *m)
1228 {
1229
1230 struct drm_info_node *node = (struct drm_info_node *) m->private;
1231 struct drm_device *dev = node->minor->dev;
1232 struct drm_i915_private *dev_priv = dev->dev_private;
1233 u32 rpmodectl1, gt_core_status, rcctl1, rc6vids = 0;
1234 unsigned forcewake_count;
1235 int count = 0, ret;
1236
1237 ret = mutex_lock_interruptible(&dev->struct_mutex);
1238 if (ret)
1239 return ret;
1240 intel_runtime_pm_get(dev_priv);
1241
1242 spin_lock_irq(&dev_priv->uncore.lock);
1243 forcewake_count = dev_priv->uncore.forcewake_count;
1244 spin_unlock_irq(&dev_priv->uncore.lock);
1245
1246 if (forcewake_count) {
1247 seq_puts(m, "RC information inaccurate because somebody "
1248 "holds a forcewake reference \n");
1249 } else {
1250 /* NB: we cannot use forcewake, else we read the wrong values */
1251 while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
1252 udelay(10);
1253 seq_printf(m, "RC information accurate: %s\n", yesno(count < 51));
1254 }
1255
1256 gt_core_status = readl(dev_priv->regs + GEN6_GT_CORE_STATUS);
1257 trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true);
1258
1259 rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
1260 rcctl1 = I915_READ(GEN6_RC_CONTROL);
1261 mutex_unlock(&dev->struct_mutex);
1262 mutex_lock(&dev_priv->rps.hw_lock);
1263 sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, &rc6vids);
1264 mutex_unlock(&dev_priv->rps.hw_lock);
1265
1266 intel_runtime_pm_put(dev_priv);
1267
1268 seq_printf(m, "Video Turbo Mode: %s\n",
1269 yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
1270 seq_printf(m, "HW control enabled: %s\n",
1271 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1272 seq_printf(m, "SW control enabled: %s\n",
1273 yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
1274 GEN6_RP_MEDIA_SW_MODE));
1275 seq_printf(m, "RC1e Enabled: %s\n",
1276 yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
1277 seq_printf(m, "RC6 Enabled: %s\n",
1278 yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
1279 seq_printf(m, "Deep RC6 Enabled: %s\n",
1280 yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
1281 seq_printf(m, "Deepest RC6 Enabled: %s\n",
1282 yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
1283 seq_puts(m, "Current RC state: ");
1284 switch (gt_core_status & GEN6_RCn_MASK) {
1285 case GEN6_RC0:
1286 if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
1287 seq_puts(m, "Core Power Down\n");
1288 else
1289 seq_puts(m, "on\n");
1290 break;
1291 case GEN6_RC3:
1292 seq_puts(m, "RC3\n");
1293 break;
1294 case GEN6_RC6:
1295 seq_puts(m, "RC6\n");
1296 break;
1297 case GEN6_RC7:
1298 seq_puts(m, "RC7\n");
1299 break;
1300 default:
1301 seq_puts(m, "Unknown\n");
1302 break;
1303 }
1304
1305 seq_printf(m, "Core Power Down: %s\n",
1306 yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
1307
1308 /* Not exactly sure what this is */
1309 seq_printf(m, "RC6 \"Locked to RPn\" residency since boot: %u\n",
1310 I915_READ(GEN6_GT_GFX_RC6_LOCKED));
1311 seq_printf(m, "RC6 residency since boot: %u\n",
1312 I915_READ(GEN6_GT_GFX_RC6));
1313 seq_printf(m, "RC6+ residency since boot: %u\n",
1314 I915_READ(GEN6_GT_GFX_RC6p));
1315 seq_printf(m, "RC6++ residency since boot: %u\n",
1316 I915_READ(GEN6_GT_GFX_RC6pp));
1317
1318 seq_printf(m, "RC6 voltage: %dmV\n",
1319 GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
1320 seq_printf(m, "RC6+ voltage: %dmV\n",
1321 GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
1322 seq_printf(m, "RC6++ voltage: %dmV\n",
1323 GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
1324 return 0;
1325 }
1326
1327 static int i915_drpc_info(struct seq_file *m, void *unused)
1328 {
1329 struct drm_info_node *node = (struct drm_info_node *) m->private;
1330 struct drm_device *dev = node->minor->dev;
1331
1332 if (IS_VALLEYVIEW(dev))
1333 return vlv_drpc_info(m);
1334 else if (IS_GEN6(dev) || IS_GEN7(dev))
1335 return gen6_drpc_info(m);
1336 else
1337 return ironlake_drpc_info(m);
1338 }
1339
1340 static int i915_fbc_status(struct seq_file *m, void *unused)
1341 {
1342 struct drm_info_node *node = (struct drm_info_node *) m->private;
1343 struct drm_device *dev = node->minor->dev;
1344 drm_i915_private_t *dev_priv = dev->dev_private;
1345
1346 if (!HAS_FBC(dev)) {
1347 seq_puts(m, "FBC unsupported on this chipset\n");
1348 return 0;
1349 }
1350
1351 if (intel_fbc_enabled(dev)) {
1352 seq_puts(m, "FBC enabled\n");
1353 } else {
1354 seq_puts(m, "FBC disabled: ");
1355 switch (dev_priv->fbc.no_fbc_reason) {
1356 case FBC_OK:
1357 seq_puts(m, "FBC actived, but currently disabled in hardware");
1358 break;
1359 case FBC_UNSUPPORTED:
1360 seq_puts(m, "unsupported by this chipset");
1361 break;
1362 case FBC_NO_OUTPUT:
1363 seq_puts(m, "no outputs");
1364 break;
1365 case FBC_STOLEN_TOO_SMALL:
1366 seq_puts(m, "not enough stolen memory");
1367 break;
1368 case FBC_UNSUPPORTED_MODE:
1369 seq_puts(m, "mode not supported");
1370 break;
1371 case FBC_MODE_TOO_LARGE:
1372 seq_puts(m, "mode too large");
1373 break;
1374 case FBC_BAD_PLANE:
1375 seq_puts(m, "FBC unsupported on plane");
1376 break;
1377 case FBC_NOT_TILED:
1378 seq_puts(m, "scanout buffer not tiled");
1379 break;
1380 case FBC_MULTIPLE_PIPES:
1381 seq_puts(m, "multiple pipes are enabled");
1382 break;
1383 case FBC_MODULE_PARAM:
1384 seq_puts(m, "disabled per module param (default off)");
1385 break;
1386 case FBC_CHIP_DEFAULT:
1387 seq_puts(m, "disabled per chip default");
1388 break;
1389 default:
1390 seq_puts(m, "unknown reason");
1391 }
1392 seq_putc(m, '\n');
1393 }
1394 return 0;
1395 }
1396
1397 static int i915_ips_status(struct seq_file *m, void *unused)
1398 {
1399 struct drm_info_node *node = (struct drm_info_node *) m->private;
1400 struct drm_device *dev = node->minor->dev;
1401 struct drm_i915_private *dev_priv = dev->dev_private;
1402
1403 if (!HAS_IPS(dev)) {
1404 seq_puts(m, "not supported\n");
1405 return 0;
1406 }
1407
1408 if (IS_BROADWELL(dev) || I915_READ(IPS_CTL) & IPS_ENABLE)
1409 seq_puts(m, "enabled\n");
1410 else
1411 seq_puts(m, "disabled\n");
1412
1413 return 0;
1414 }
1415
1416 static int i915_sr_status(struct seq_file *m, void *unused)
1417 {
1418 struct drm_info_node *node = (struct drm_info_node *) m->private;
1419 struct drm_device *dev = node->minor->dev;
1420 drm_i915_private_t *dev_priv = dev->dev_private;
1421 bool sr_enabled = false;
1422
1423 if (HAS_PCH_SPLIT(dev))
1424 sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
1425 else if (IS_CRESTLINE(dev) || IS_I945G(dev) || IS_I945GM(dev))
1426 sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
1427 else if (IS_I915GM(dev))
1428 sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
1429 else if (IS_PINEVIEW(dev))
1430 sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
1431
1432 seq_printf(m, "self-refresh: %s\n",
1433 sr_enabled ? "enabled" : "disabled");
1434
1435 return 0;
1436 }
1437
1438 static int i915_emon_status(struct seq_file *m, void *unused)
1439 {
1440 struct drm_info_node *node = (struct drm_info_node *) m->private;
1441 struct drm_device *dev = node->minor->dev;
1442 drm_i915_private_t *dev_priv = dev->dev_private;
1443 unsigned long temp, chipset, gfx;
1444 int ret;
1445
1446 if (!IS_GEN5(dev))
1447 return -ENODEV;
1448
1449 ret = mutex_lock_interruptible(&dev->struct_mutex);
1450 if (ret)
1451 return ret;
1452
1453 temp = i915_mch_val(dev_priv);
1454 chipset = i915_chipset_val(dev_priv);
1455 gfx = i915_gfx_val(dev_priv);
1456 mutex_unlock(&dev->struct_mutex);
1457
1458 seq_printf(m, "GMCH temp: %ld\n", temp);
1459 seq_printf(m, "Chipset power: %ld\n", chipset);
1460 seq_printf(m, "GFX power: %ld\n", gfx);
1461 seq_printf(m, "Total power: %ld\n", chipset + gfx);
1462
1463 return 0;
1464 }
1465
1466 static int i915_ring_freq_table(struct seq_file *m, void *unused)
1467 {
1468 struct drm_info_node *node = (struct drm_info_node *) m->private;
1469 struct drm_device *dev = node->minor->dev;
1470 drm_i915_private_t *dev_priv = dev->dev_private;
1471 int ret;
1472 int gpu_freq, ia_freq;
1473
1474 if (!(IS_GEN6(dev) || IS_GEN7(dev))) {
1475 seq_puts(m, "unsupported on this chipset\n");
1476 return 0;
1477 }
1478
1479 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
1480
1481 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
1482 if (ret)
1483 return ret;
1484 intel_runtime_pm_get(dev_priv);
1485
1486 seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
1487
1488 for (gpu_freq = dev_priv->rps.min_delay;
1489 gpu_freq <= dev_priv->rps.max_delay;
1490 gpu_freq++) {
1491 ia_freq = gpu_freq;
1492 sandybridge_pcode_read(dev_priv,
1493 GEN6_PCODE_READ_MIN_FREQ_TABLE,
1494 &ia_freq);
1495 seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
1496 gpu_freq * GT_FREQUENCY_MULTIPLIER,
1497 ((ia_freq >> 0) & 0xff) * 100,
1498 ((ia_freq >> 8) & 0xff) * 100);
1499 }
1500
1501 intel_runtime_pm_put(dev_priv);
1502 mutex_unlock(&dev_priv->rps.hw_lock);
1503
1504 return 0;
1505 }
1506
1507 static int i915_gfxec(struct seq_file *m, void *unused)
1508 {
1509 struct drm_info_node *node = (struct drm_info_node *) m->private;
1510 struct drm_device *dev = node->minor->dev;
1511 drm_i915_private_t *dev_priv = dev->dev_private;
1512 int ret;
1513
1514 ret = mutex_lock_interruptible(&dev->struct_mutex);
1515 if (ret)
1516 return ret;
1517 intel_runtime_pm_get(dev_priv);
1518
1519 seq_printf(m, "GFXEC: %ld\n", (unsigned long)I915_READ(0x112f4));
1520 intel_runtime_pm_put(dev_priv);
1521
1522 mutex_unlock(&dev->struct_mutex);
1523
1524 return 0;
1525 }
1526
1527 static int i915_opregion(struct seq_file *m, void *unused)
1528 {
1529 struct drm_info_node *node = (struct drm_info_node *) m->private;
1530 struct drm_device *dev = node->minor->dev;
1531 drm_i915_private_t *dev_priv = dev->dev_private;
1532 struct intel_opregion *opregion = &dev_priv->opregion;
1533 void *data = kmalloc(OPREGION_SIZE, GFP_KERNEL);
1534 int ret;
1535
1536 if (data == NULL)
1537 return -ENOMEM;
1538
1539 ret = mutex_lock_interruptible(&dev->struct_mutex);
1540 if (ret)
1541 goto out;
1542
1543 if (opregion->header) {
1544 memcpy_fromio(data, opregion->header, OPREGION_SIZE);
1545 seq_write(m, data, OPREGION_SIZE);
1546 }
1547
1548 mutex_unlock(&dev->struct_mutex);
1549
1550 out:
1551 kfree(data);
1552 return 0;
1553 }
1554
1555 static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
1556 {
1557 struct drm_info_node *node = (struct drm_info_node *) m->private;
1558 struct drm_device *dev = node->minor->dev;
1559 struct intel_fbdev *ifbdev = NULL;
1560 struct intel_framebuffer *fb;
1561
1562 #ifdef CONFIG_DRM_I915_FBDEV
1563 struct drm_i915_private *dev_priv = dev->dev_private;
1564 int ret = mutex_lock_interruptible(&dev->mode_config.mutex);
1565 if (ret)
1566 return ret;
1567
1568 ifbdev = dev_priv->fbdev;
1569 fb = to_intel_framebuffer(ifbdev->helper.fb);
1570
1571 seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, refcount %d, obj ",
1572 fb->base.width,
1573 fb->base.height,
1574 fb->base.depth,
1575 fb->base.bits_per_pixel,
1576 atomic_read(&fb->base.refcount.refcount));
1577 describe_obj(m, fb->obj);
1578 seq_putc(m, '\n');
1579 mutex_unlock(&dev->mode_config.mutex);
1580 #endif
1581
1582 mutex_lock(&dev->mode_config.fb_lock);
1583 list_for_each_entry(fb, &dev->mode_config.fb_list, base.head) {
1584 if (ifbdev && &fb->base == ifbdev->helper.fb)
1585 continue;
1586
1587 seq_printf(m, "user size: %d x %d, depth %d, %d bpp, refcount %d, obj ",
1588 fb->base.width,
1589 fb->base.height,
1590 fb->base.depth,
1591 fb->base.bits_per_pixel,
1592 atomic_read(&fb->base.refcount.refcount));
1593 describe_obj(m, fb->obj);
1594 seq_putc(m, '\n');
1595 }
1596 mutex_unlock(&dev->mode_config.fb_lock);
1597
1598 return 0;
1599 }
1600
1601 static int i915_context_status(struct seq_file *m, void *unused)
1602 {
1603 struct drm_info_node *node = (struct drm_info_node *) m->private;
1604 struct drm_device *dev = node->minor->dev;
1605 drm_i915_private_t *dev_priv = dev->dev_private;
1606 struct intel_ring_buffer *ring;
1607 struct i915_hw_context *ctx;
1608 int ret, i;
1609
1610 ret = mutex_lock_interruptible(&dev->mode_config.mutex);
1611 if (ret)
1612 return ret;
1613
1614 if (dev_priv->ips.pwrctx) {
1615 seq_puts(m, "power context ");
1616 describe_obj(m, dev_priv->ips.pwrctx);
1617 seq_putc(m, '\n');
1618 }
1619
1620 if (dev_priv->ips.renderctx) {
1621 seq_puts(m, "render context ");
1622 describe_obj(m, dev_priv->ips.renderctx);
1623 seq_putc(m, '\n');
1624 }
1625
1626 list_for_each_entry(ctx, &dev_priv->context_list, link) {
1627 seq_puts(m, "HW context ");
1628 describe_ctx(m, ctx);
1629 for_each_ring(ring, dev_priv, i)
1630 if (ring->default_context == ctx)
1631 seq_printf(m, "(default context %s) ", ring->name);
1632
1633 describe_obj(m, ctx->obj);
1634 seq_putc(m, '\n');
1635 }
1636
1637 mutex_unlock(&dev->mode_config.mutex);
1638
1639 return 0;
1640 }
1641
1642 static int i915_gen6_forcewake_count_info(struct seq_file *m, void *data)
1643 {
1644 struct drm_info_node *node = (struct drm_info_node *) m->private;
1645 struct drm_device *dev = node->minor->dev;
1646 struct drm_i915_private *dev_priv = dev->dev_private;
1647 unsigned forcewake_count = 0, fw_rendercount = 0, fw_mediacount = 0;
1648
1649 spin_lock_irq(&dev_priv->uncore.lock);
1650 if (IS_VALLEYVIEW(dev)) {
1651 fw_rendercount = dev_priv->uncore.fw_rendercount;
1652 fw_mediacount = dev_priv->uncore.fw_mediacount;
1653 } else
1654 forcewake_count = dev_priv->uncore.forcewake_count;
1655 spin_unlock_irq(&dev_priv->uncore.lock);
1656
1657 if (IS_VALLEYVIEW(dev)) {
1658 seq_printf(m, "fw_rendercount = %u\n", fw_rendercount);
1659 seq_printf(m, "fw_mediacount = %u\n", fw_mediacount);
1660 } else
1661 seq_printf(m, "forcewake count = %u\n", forcewake_count);
1662
1663 return 0;
1664 }
1665
1666 static const char *swizzle_string(unsigned swizzle)
1667 {
1668 switch (swizzle) {
1669 case I915_BIT_6_SWIZZLE_NONE:
1670 return "none";
1671 case I915_BIT_6_SWIZZLE_9:
1672 return "bit9";
1673 case I915_BIT_6_SWIZZLE_9_10:
1674 return "bit9/bit10";
1675 case I915_BIT_6_SWIZZLE_9_11:
1676 return "bit9/bit11";
1677 case I915_BIT_6_SWIZZLE_9_10_11:
1678 return "bit9/bit10/bit11";
1679 case I915_BIT_6_SWIZZLE_9_17:
1680 return "bit9/bit17";
1681 case I915_BIT_6_SWIZZLE_9_10_17:
1682 return "bit9/bit10/bit17";
1683 case I915_BIT_6_SWIZZLE_UNKNOWN:
1684 return "unknown";
1685 }
1686
1687 return "bug";
1688 }
1689
1690 static int i915_swizzle_info(struct seq_file *m, void *data)
1691 {
1692 struct drm_info_node *node = (struct drm_info_node *) m->private;
1693 struct drm_device *dev = node->minor->dev;
1694 struct drm_i915_private *dev_priv = dev->dev_private;
1695 int ret;
1696
1697 ret = mutex_lock_interruptible(&dev->struct_mutex);
1698 if (ret)
1699 return ret;
1700 intel_runtime_pm_get(dev_priv);
1701
1702 seq_printf(m, "bit6 swizzle for X-tiling = %s\n",
1703 swizzle_string(dev_priv->mm.bit_6_swizzle_x));
1704 seq_printf(m, "bit6 swizzle for Y-tiling = %s\n",
1705 swizzle_string(dev_priv->mm.bit_6_swizzle_y));
1706
1707 if (IS_GEN3(dev) || IS_GEN4(dev)) {
1708 seq_printf(m, "DDC = 0x%08x\n",
1709 I915_READ(DCC));
1710 seq_printf(m, "C0DRB3 = 0x%04x\n",
1711 I915_READ16(C0DRB3));
1712 seq_printf(m, "C1DRB3 = 0x%04x\n",
1713 I915_READ16(C1DRB3));
1714 } else if (INTEL_INFO(dev)->gen >= 6) {
1715 seq_printf(m, "MAD_DIMM_C0 = 0x%08x\n",
1716 I915_READ(MAD_DIMM_C0));
1717 seq_printf(m, "MAD_DIMM_C1 = 0x%08x\n",
1718 I915_READ(MAD_DIMM_C1));
1719 seq_printf(m, "MAD_DIMM_C2 = 0x%08x\n",
1720 I915_READ(MAD_DIMM_C2));
1721 seq_printf(m, "TILECTL = 0x%08x\n",
1722 I915_READ(TILECTL));
1723 if (IS_GEN8(dev))
1724 seq_printf(m, "GAMTARBMODE = 0x%08x\n",
1725 I915_READ(GAMTARBMODE));
1726 else
1727 seq_printf(m, "ARB_MODE = 0x%08x\n",
1728 I915_READ(ARB_MODE));
1729 seq_printf(m, "DISP_ARB_CTL = 0x%08x\n",
1730 I915_READ(DISP_ARB_CTL));
1731 }
1732 intel_runtime_pm_put(dev_priv);
1733 mutex_unlock(&dev->struct_mutex);
1734
1735 return 0;
1736 }
1737
1738 static int per_file_ctx(int id, void *ptr, void *data)
1739 {
1740 struct i915_hw_context *ctx = ptr;
1741 struct seq_file *m = data;
1742 struct i915_hw_ppgtt *ppgtt = ctx_to_ppgtt(ctx);
1743
1744 ppgtt->debug_dump(ppgtt, m);
1745
1746 return 0;
1747 }
1748
1749 static void gen8_ppgtt_info(struct seq_file *m, struct drm_device *dev)
1750 {
1751 struct drm_i915_private *dev_priv = dev->dev_private;
1752 struct intel_ring_buffer *ring;
1753 struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
1754 int unused, i;
1755
1756 if (!ppgtt)
1757 return;
1758
1759 seq_printf(m, "Page directories: %d\n", ppgtt->num_pd_pages);
1760 seq_printf(m, "Page tables: %d\n", ppgtt->num_pt_pages);
1761 for_each_ring(ring, dev_priv, unused) {
1762 seq_printf(m, "%s\n", ring->name);
1763 for (i = 0; i < 4; i++) {
1764 u32 offset = 0x270 + i * 8;
1765 u64 pdp = I915_READ(ring->mmio_base + offset + 4);
1766 pdp <<= 32;
1767 pdp |= I915_READ(ring->mmio_base + offset);
1768 for (i = 0; i < 4; i++)
1769 seq_printf(m, "\tPDP%d 0x%016llx\n", i, pdp);
1770 }
1771 }
1772 }
1773
1774 static void gen6_ppgtt_info(struct seq_file *m, struct drm_device *dev)
1775 {
1776 struct drm_i915_private *dev_priv = dev->dev_private;
1777 struct intel_ring_buffer *ring;
1778 struct drm_file *file;
1779 int i;
1780
1781 if (INTEL_INFO(dev)->gen == 6)
1782 seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(GFX_MODE));
1783
1784 for_each_ring(ring, dev_priv, i) {
1785 seq_printf(m, "%s\n", ring->name);
1786 if (INTEL_INFO(dev)->gen == 7)
1787 seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(RING_MODE_GEN7(ring)));
1788 seq_printf(m, "PP_DIR_BASE: 0x%08x\n", I915_READ(RING_PP_DIR_BASE(ring)));
1789 seq_printf(m, "PP_DIR_BASE_READ: 0x%08x\n", I915_READ(RING_PP_DIR_BASE_READ(ring)));
1790 seq_printf(m, "PP_DIR_DCLV: 0x%08x\n", I915_READ(RING_PP_DIR_DCLV(ring)));
1791 }
1792 if (dev_priv->mm.aliasing_ppgtt) {
1793 struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
1794
1795 seq_puts(m, "aliasing PPGTT:\n");
1796 seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd_offset);
1797
1798 ppgtt->debug_dump(ppgtt, m);
1799 } else
1800 return;
1801
1802 list_for_each_entry_reverse(file, &dev->filelist, lhead) {
1803 struct drm_i915_file_private *file_priv = file->driver_priv;
1804 struct i915_hw_ppgtt *pvt_ppgtt;
1805
1806 pvt_ppgtt = ctx_to_ppgtt(file_priv->private_default_ctx);
1807 seq_printf(m, "proc: %s\n",
1808 get_pid_task(file->pid, PIDTYPE_PID)->comm);
1809 seq_puts(m, " default context:\n");
1810 idr_for_each(&file_priv->context_idr, per_file_ctx, m);
1811 }
1812 seq_printf(m, "ECOCHK: 0x%08x\n", I915_READ(GAM_ECOCHK));
1813 }
1814
1815 static int i915_ppgtt_info(struct seq_file *m, void *data)
1816 {
1817 struct drm_info_node *node = (struct drm_info_node *) m->private;
1818 struct drm_device *dev = node->minor->dev;
1819 struct drm_i915_private *dev_priv = dev->dev_private;
1820
1821 int ret = mutex_lock_interruptible(&dev->struct_mutex);
1822 if (ret)
1823 return ret;
1824 intel_runtime_pm_get(dev_priv);
1825
1826 if (INTEL_INFO(dev)->gen >= 8)
1827 gen8_ppgtt_info(m, dev);
1828 else if (INTEL_INFO(dev)->gen >= 6)
1829 gen6_ppgtt_info(m, dev);
1830
1831 intel_runtime_pm_put(dev_priv);
1832 mutex_unlock(&dev->struct_mutex);
1833
1834 return 0;
1835 }
1836
1837 static int i915_dpio_info(struct seq_file *m, void *data)
1838 {
1839 struct drm_info_node *node = (struct drm_info_node *) m->private;
1840 struct drm_device *dev = node->minor->dev;
1841 struct drm_i915_private *dev_priv = dev->dev_private;
1842 int ret;
1843
1844
1845 if (!IS_VALLEYVIEW(dev)) {
1846 seq_puts(m, "unsupported\n");
1847 return 0;
1848 }
1849
1850 ret = mutex_lock_interruptible(&dev_priv->dpio_lock);
1851 if (ret)
1852 return ret;
1853
1854 seq_printf(m, "DPIO_CTL: 0x%08x\n", I915_READ(DPIO_CTL));
1855
1856 seq_printf(m, "DPIO PLL DW3 CH0 : 0x%08x\n",
1857 vlv_dpio_read(dev_priv, PIPE_A, VLV_PLL_DW3(0)));
1858 seq_printf(m, "DPIO PLL DW3 CH1: 0x%08x\n",
1859 vlv_dpio_read(dev_priv, PIPE_A, VLV_PLL_DW3(1)));
1860
1861 seq_printf(m, "DPIO PLL DW5 CH0: 0x%08x\n",
1862 vlv_dpio_read(dev_priv, PIPE_A, VLV_PLL_DW5(0)));
1863 seq_printf(m, "DPIO PLL DW5 CH1: 0x%08x\n",
1864 vlv_dpio_read(dev_priv, PIPE_A, VLV_PLL_DW5(1)));
1865
1866 seq_printf(m, "DPIO PLL DW7 CH0: 0x%08x\n",
1867 vlv_dpio_read(dev_priv, PIPE_A, VLV_PLL_DW7(0)));
1868 seq_printf(m, "DPIO PLL DW7 CH1: 0x%08x\n",
1869 vlv_dpio_read(dev_priv, PIPE_A, VLV_PLL_DW7(1)));
1870
1871 seq_printf(m, "DPIO PLL DW10 CH0: 0x%08x\n",
1872 vlv_dpio_read(dev_priv, PIPE_A, VLV_PLL_DW10(0)));
1873 seq_printf(m, "DPIO PLL DW10 CH1: 0x%08x\n",
1874 vlv_dpio_read(dev_priv, PIPE_A, VLV_PLL_DW10(1)));
1875
1876 seq_printf(m, "DPIO_FASTCLK_DISABLE: 0x%08x\n",
1877 vlv_dpio_read(dev_priv, PIPE_A, VLV_CMN_DW0));
1878
1879 mutex_unlock(&dev_priv->dpio_lock);
1880
1881 return 0;
1882 }
1883
1884 static int i915_llc(struct seq_file *m, void *data)
1885 {
1886 struct drm_info_node *node = (struct drm_info_node *) m->private;
1887 struct drm_device *dev = node->minor->dev;
1888 struct drm_i915_private *dev_priv = dev->dev_private;
1889
1890 /* Size calculation for LLC is a bit of a pain. Ignore for now. */
1891 seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(dev)));
1892 seq_printf(m, "eLLC: %zuMB\n", dev_priv->ellc_size);
1893
1894 return 0;
1895 }
1896
1897 static int i915_edp_psr_status(struct seq_file *m, void *data)
1898 {
1899 struct drm_info_node *node = m->private;
1900 struct drm_device *dev = node->minor->dev;
1901 struct drm_i915_private *dev_priv = dev->dev_private;
1902 u32 psrperf = 0;
1903 bool enabled = false;
1904
1905 intel_runtime_pm_get(dev_priv);
1906
1907 seq_printf(m, "Sink_Support: %s\n", yesno(dev_priv->psr.sink_support));
1908 seq_printf(m, "Source_OK: %s\n", yesno(dev_priv->psr.source_ok));
1909
1910 enabled = HAS_PSR(dev) &&
1911 I915_READ(EDP_PSR_CTL(dev)) & EDP_PSR_ENABLE;
1912 seq_printf(m, "Enabled: %s\n", yesno(enabled));
1913
1914 if (HAS_PSR(dev))
1915 psrperf = I915_READ(EDP_PSR_PERF_CNT(dev)) &
1916 EDP_PSR_PERF_CNT_MASK;
1917 seq_printf(m, "Performance_Counter: %u\n", psrperf);
1918
1919 intel_runtime_pm_put(dev_priv);
1920 return 0;
1921 }
1922
1923 static int i915_sink_crc(struct seq_file *m, void *data)
1924 {
1925 struct drm_info_node *node = m->private;
1926 struct drm_device *dev = node->minor->dev;
1927 struct intel_encoder *encoder;
1928 struct intel_connector *connector;
1929 struct intel_dp *intel_dp = NULL;
1930 int ret;
1931 u8 crc[6];
1932
1933 drm_modeset_lock_all(dev);
1934 list_for_each_entry(connector, &dev->mode_config.connector_list,
1935 base.head) {
1936
1937 if (connector->base.dpms != DRM_MODE_DPMS_ON)
1938 continue;
1939
1940 encoder = to_intel_encoder(connector->base.encoder);
1941 if (encoder->type != INTEL_OUTPUT_EDP)
1942 continue;
1943
1944 intel_dp = enc_to_intel_dp(&encoder->base);
1945
1946 ret = intel_dp_sink_crc(intel_dp, crc);
1947 if (ret)
1948 goto out;
1949
1950 seq_printf(m, "%02x%02x%02x%02x%02x%02x\n",
1951 crc[0], crc[1], crc[2],
1952 crc[3], crc[4], crc[5]);
1953 goto out;
1954 }
1955 ret = -ENODEV;
1956 out:
1957 drm_modeset_unlock_all(dev);
1958 return ret;
1959 }
1960
1961 static int i915_energy_uJ(struct seq_file *m, void *data)
1962 {
1963 struct drm_info_node *node = m->private;
1964 struct drm_device *dev = node->minor->dev;
1965 struct drm_i915_private *dev_priv = dev->dev_private;
1966 u64 power;
1967 u32 units;
1968
1969 if (INTEL_INFO(dev)->gen < 6)
1970 return -ENODEV;
1971
1972 rdmsrl(MSR_RAPL_POWER_UNIT, power);
1973 power = (power & 0x1f00) >> 8;
1974 units = 1000000 / (1 << power); /* convert to uJ */
1975 power = I915_READ(MCH_SECP_NRG_STTS);
1976 power *= units;
1977
1978 seq_printf(m, "%llu", (long long unsigned)power);
1979
1980 return 0;
1981 }
1982
1983 static int i915_pc8_status(struct seq_file *m, void *unused)
1984 {
1985 struct drm_info_node *node = (struct drm_info_node *) m->private;
1986 struct drm_device *dev = node->minor->dev;
1987 struct drm_i915_private *dev_priv = dev->dev_private;
1988
1989 if (!IS_HASWELL(dev)) {
1990 seq_puts(m, "not supported\n");
1991 return 0;
1992 }
1993
1994 mutex_lock(&dev_priv->pc8.lock);
1995 seq_printf(m, "Requirements met: %s\n",
1996 yesno(dev_priv->pc8.requirements_met));
1997 seq_printf(m, "GPU idle: %s\n", yesno(dev_priv->pc8.gpu_idle));
1998 seq_printf(m, "Disable count: %d\n", dev_priv->pc8.disable_count);
1999 seq_printf(m, "IRQs disabled: %s\n",
2000 yesno(dev_priv->pc8.irqs_disabled));
2001 seq_printf(m, "Enabled: %s\n", yesno(dev_priv->pc8.enabled));
2002 mutex_unlock(&dev_priv->pc8.lock);
2003
2004 return 0;
2005 }
2006
2007 static const char *power_domain_str(enum intel_display_power_domain domain)
2008 {
2009 switch (domain) {
2010 case POWER_DOMAIN_PIPE_A:
2011 return "PIPE_A";
2012 case POWER_DOMAIN_PIPE_B:
2013 return "PIPE_B";
2014 case POWER_DOMAIN_PIPE_C:
2015 return "PIPE_C";
2016 case POWER_DOMAIN_PIPE_A_PANEL_FITTER:
2017 return "PIPE_A_PANEL_FITTER";
2018 case POWER_DOMAIN_PIPE_B_PANEL_FITTER:
2019 return "PIPE_B_PANEL_FITTER";
2020 case POWER_DOMAIN_PIPE_C_PANEL_FITTER:
2021 return "PIPE_C_PANEL_FITTER";
2022 case POWER_DOMAIN_TRANSCODER_A:
2023 return "TRANSCODER_A";
2024 case POWER_DOMAIN_TRANSCODER_B:
2025 return "TRANSCODER_B";
2026 case POWER_DOMAIN_TRANSCODER_C:
2027 return "TRANSCODER_C";
2028 case POWER_DOMAIN_TRANSCODER_EDP:
2029 return "TRANSCODER_EDP";
2030 case POWER_DOMAIN_VGA:
2031 return "VGA";
2032 case POWER_DOMAIN_AUDIO:
2033 return "AUDIO";
2034 case POWER_DOMAIN_INIT:
2035 return "INIT";
2036 default:
2037 WARN_ON(1);
2038 return "?";
2039 }
2040 }
2041
2042 static int i915_power_domain_info(struct seq_file *m, void *unused)
2043 {
2044 struct drm_info_node *node = (struct drm_info_node *) m->private;
2045 struct drm_device *dev = node->minor->dev;
2046 struct drm_i915_private *dev_priv = dev->dev_private;
2047 struct i915_power_domains *power_domains = &dev_priv->power_domains;
2048 int i;
2049
2050 mutex_lock(&power_domains->lock);
2051
2052 seq_printf(m, "%-25s %s\n", "Power well/domain", "Use count");
2053 for (i = 0; i < power_domains->power_well_count; i++) {
2054 struct i915_power_well *power_well;
2055 enum intel_display_power_domain power_domain;
2056
2057 power_well = &power_domains->power_wells[i];
2058 seq_printf(m, "%-25s %d\n", power_well->name,
2059 power_well->count);
2060
2061 for (power_domain = 0; power_domain < POWER_DOMAIN_NUM;
2062 power_domain++) {
2063 if (!(BIT(power_domain) & power_well->domains))
2064 continue;
2065
2066 seq_printf(m, " %-23s %d\n",
2067 power_domain_str(power_domain),
2068 power_domains->domain_use_count[power_domain]);
2069 }
2070 }
2071
2072 mutex_unlock(&power_domains->lock);
2073
2074 return 0;
2075 }
2076
2077 struct pipe_crc_info {
2078 const char *name;
2079 struct drm_device *dev;
2080 enum pipe pipe;
2081 };
2082
2083 static int i915_pipe_crc_open(struct inode *inode, struct file *filep)
2084 {
2085 struct pipe_crc_info *info = inode->i_private;
2086 struct drm_i915_private *dev_priv = info->dev->dev_private;
2087 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
2088
2089 if (info->pipe >= INTEL_INFO(info->dev)->num_pipes)
2090 return -ENODEV;
2091
2092 spin_lock_irq(&pipe_crc->lock);
2093
2094 if (pipe_crc->opened) {
2095 spin_unlock_irq(&pipe_crc->lock);
2096 return -EBUSY; /* already open */
2097 }
2098
2099 pipe_crc->opened = true;
2100 filep->private_data = inode->i_private;
2101
2102 spin_unlock_irq(&pipe_crc->lock);
2103
2104 return 0;
2105 }
2106
2107 static int i915_pipe_crc_release(struct inode *inode, struct file *filep)
2108 {
2109 struct pipe_crc_info *info = inode->i_private;
2110 struct drm_i915_private *dev_priv = info->dev->dev_private;
2111 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
2112
2113 spin_lock_irq(&pipe_crc->lock);
2114 pipe_crc->opened = false;
2115 spin_unlock_irq(&pipe_crc->lock);
2116
2117 return 0;
2118 }
2119
2120 /* (6 fields, 8 chars each, space separated (5) + '\n') */
2121 #define PIPE_CRC_LINE_LEN (6 * 8 + 5 + 1)
2122 /* account for \'0' */
2123 #define PIPE_CRC_BUFFER_LEN (PIPE_CRC_LINE_LEN + 1)
2124
2125 static int pipe_crc_data_count(struct intel_pipe_crc *pipe_crc)
2126 {
2127 assert_spin_locked(&pipe_crc->lock);
2128 return CIRC_CNT(pipe_crc->head, pipe_crc->tail,
2129 INTEL_PIPE_CRC_ENTRIES_NR);
2130 }
2131
2132 static ssize_t
2133 i915_pipe_crc_read(struct file *filep, char __user *user_buf, size_t count,
2134 loff_t *pos)
2135 {
2136 struct pipe_crc_info *info = filep->private_data;
2137 struct drm_device *dev = info->dev;
2138 struct drm_i915_private *dev_priv = dev->dev_private;
2139 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
2140 char buf[PIPE_CRC_BUFFER_LEN];
2141 int head, tail, n_entries, n;
2142 ssize_t bytes_read;
2143
2144 /*
2145 * Don't allow user space to provide buffers not big enough to hold
2146 * a line of data.
2147 */
2148 if (count < PIPE_CRC_LINE_LEN)
2149 return -EINVAL;
2150
2151 if (pipe_crc->source == INTEL_PIPE_CRC_SOURCE_NONE)
2152 return 0;
2153
2154 /* nothing to read */
2155 spin_lock_irq(&pipe_crc->lock);
2156 while (pipe_crc_data_count(pipe_crc) == 0) {
2157 int ret;
2158
2159 if (filep->f_flags & O_NONBLOCK) {
2160 spin_unlock_irq(&pipe_crc->lock);
2161 return -EAGAIN;
2162 }
2163
2164 ret = wait_event_interruptible_lock_irq(pipe_crc->wq,
2165 pipe_crc_data_count(pipe_crc), pipe_crc->lock);
2166 if (ret) {
2167 spin_unlock_irq(&pipe_crc->lock);
2168 return ret;
2169 }
2170 }
2171
2172 /* We now have one or more entries to read */
2173 head = pipe_crc->head;
2174 tail = pipe_crc->tail;
2175 n_entries = min((size_t)CIRC_CNT(head, tail, INTEL_PIPE_CRC_ENTRIES_NR),
2176 count / PIPE_CRC_LINE_LEN);
2177 spin_unlock_irq(&pipe_crc->lock);
2178
2179 bytes_read = 0;
2180 n = 0;
2181 do {
2182 struct intel_pipe_crc_entry *entry = &pipe_crc->entries[tail];
2183 int ret;
2184
2185 bytes_read += snprintf(buf, PIPE_CRC_BUFFER_LEN,
2186 "%8u %8x %8x %8x %8x %8x\n",
2187 entry->frame, entry->crc[0],
2188 entry->crc[1], entry->crc[2],
2189 entry->crc[3], entry->crc[4]);
2190
2191 ret = copy_to_user(user_buf + n * PIPE_CRC_LINE_LEN,
2192 buf, PIPE_CRC_LINE_LEN);
2193 if (ret == PIPE_CRC_LINE_LEN)
2194 return -EFAULT;
2195
2196 BUILD_BUG_ON_NOT_POWER_OF_2(INTEL_PIPE_CRC_ENTRIES_NR);
2197 tail = (tail + 1) & (INTEL_PIPE_CRC_ENTRIES_NR - 1);
2198 n++;
2199 } while (--n_entries);
2200
2201 spin_lock_irq(&pipe_crc->lock);
2202 pipe_crc->tail = tail;
2203 spin_unlock_irq(&pipe_crc->lock);
2204
2205 return bytes_read;
2206 }
2207
2208 static const struct file_operations i915_pipe_crc_fops = {
2209 .owner = THIS_MODULE,
2210 .open = i915_pipe_crc_open,
2211 .read = i915_pipe_crc_read,
2212 .release = i915_pipe_crc_release,
2213 };
2214
2215 static struct pipe_crc_info i915_pipe_crc_data[I915_MAX_PIPES] = {
2216 {
2217 .name = "i915_pipe_A_crc",
2218 .pipe = PIPE_A,
2219 },
2220 {
2221 .name = "i915_pipe_B_crc",
2222 .pipe = PIPE_B,
2223 },
2224 {
2225 .name = "i915_pipe_C_crc",
2226 .pipe = PIPE_C,
2227 },
2228 };
2229
2230 static int i915_pipe_crc_create(struct dentry *root, struct drm_minor *minor,
2231 enum pipe pipe)
2232 {
2233 struct drm_device *dev = minor->dev;
2234 struct dentry *ent;
2235 struct pipe_crc_info *info = &i915_pipe_crc_data[pipe];
2236
2237 info->dev = dev;
2238 ent = debugfs_create_file(info->name, S_IRUGO, root, info,
2239 &i915_pipe_crc_fops);
2240 if (!ent)
2241 return -ENOMEM;
2242
2243 return drm_add_fake_info_node(minor, ent, info);
2244 }
2245
2246 static const char * const pipe_crc_sources[] = {
2247 "none",
2248 "plane1",
2249 "plane2",
2250 "pf",
2251 "pipe",
2252 "TV",
2253 "DP-B",
2254 "DP-C",
2255 "DP-D",
2256 "auto",
2257 };
2258
2259 static const char *pipe_crc_source_name(enum intel_pipe_crc_source source)
2260 {
2261 BUILD_BUG_ON(ARRAY_SIZE(pipe_crc_sources) != INTEL_PIPE_CRC_SOURCE_MAX);
2262 return pipe_crc_sources[source];
2263 }
2264
2265 static int display_crc_ctl_show(struct seq_file *m, void *data)
2266 {
2267 struct drm_device *dev = m->private;
2268 struct drm_i915_private *dev_priv = dev->dev_private;
2269 int i;
2270
2271 for (i = 0; i < I915_MAX_PIPES; i++)
2272 seq_printf(m, "%c %s\n", pipe_name(i),
2273 pipe_crc_source_name(dev_priv->pipe_crc[i].source));
2274
2275 return 0;
2276 }
2277
2278 static int display_crc_ctl_open(struct inode *inode, struct file *file)
2279 {
2280 struct drm_device *dev = inode->i_private;
2281
2282 return single_open(file, display_crc_ctl_show, dev);
2283 }
2284
2285 static int i8xx_pipe_crc_ctl_reg(enum intel_pipe_crc_source *source,
2286 uint32_t *val)
2287 {
2288 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
2289 *source = INTEL_PIPE_CRC_SOURCE_PIPE;
2290
2291 switch (*source) {
2292 case INTEL_PIPE_CRC_SOURCE_PIPE:
2293 *val = PIPE_CRC_ENABLE | PIPE_CRC_INCLUDE_BORDER_I8XX;
2294 break;
2295 case INTEL_PIPE_CRC_SOURCE_NONE:
2296 *val = 0;
2297 break;
2298 default:
2299 return -EINVAL;
2300 }
2301
2302 return 0;
2303 }
2304
2305 static int i9xx_pipe_crc_auto_source(struct drm_device *dev, enum pipe pipe,
2306 enum intel_pipe_crc_source *source)
2307 {
2308 struct intel_encoder *encoder;
2309 struct intel_crtc *crtc;
2310 struct intel_digital_port *dig_port;
2311 int ret = 0;
2312
2313 *source = INTEL_PIPE_CRC_SOURCE_PIPE;
2314
2315 mutex_lock(&dev->mode_config.mutex);
2316 list_for_each_entry(encoder, &dev->mode_config.encoder_list,
2317 base.head) {
2318 if (!encoder->base.crtc)
2319 continue;
2320
2321 crtc = to_intel_crtc(encoder->base.crtc);
2322
2323 if (crtc->pipe != pipe)
2324 continue;
2325
2326 switch (encoder->type) {
2327 case INTEL_OUTPUT_TVOUT:
2328 *source = INTEL_PIPE_CRC_SOURCE_TV;
2329 break;
2330 case INTEL_OUTPUT_DISPLAYPORT:
2331 case INTEL_OUTPUT_EDP:
2332 dig_port = enc_to_dig_port(&encoder->base);
2333 switch (dig_port->port) {
2334 case PORT_B:
2335 *source = INTEL_PIPE_CRC_SOURCE_DP_B;
2336 break;
2337 case PORT_C:
2338 *source = INTEL_PIPE_CRC_SOURCE_DP_C;
2339 break;
2340 case PORT_D:
2341 *source = INTEL_PIPE_CRC_SOURCE_DP_D;
2342 break;
2343 default:
2344 WARN(1, "nonexisting DP port %c\n",
2345 port_name(dig_port->port));
2346 break;
2347 }
2348 break;
2349 }
2350 }
2351 mutex_unlock(&dev->mode_config.mutex);
2352
2353 return ret;
2354 }
2355
2356 static int vlv_pipe_crc_ctl_reg(struct drm_device *dev,
2357 enum pipe pipe,
2358 enum intel_pipe_crc_source *source,
2359 uint32_t *val)
2360 {
2361 struct drm_i915_private *dev_priv = dev->dev_private;
2362 bool need_stable_symbols = false;
2363
2364 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO) {
2365 int ret = i9xx_pipe_crc_auto_source(dev, pipe, source);
2366 if (ret)
2367 return ret;
2368 }
2369
2370 switch (*source) {
2371 case INTEL_PIPE_CRC_SOURCE_PIPE:
2372 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_VLV;
2373 break;
2374 case INTEL_PIPE_CRC_SOURCE_DP_B:
2375 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_B_VLV;
2376 need_stable_symbols = true;
2377 break;
2378 case INTEL_PIPE_CRC_SOURCE_DP_C:
2379 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_C_VLV;
2380 need_stable_symbols = true;
2381 break;
2382 case INTEL_PIPE_CRC_SOURCE_NONE:
2383 *val = 0;
2384 break;
2385 default:
2386 return -EINVAL;
2387 }
2388
2389 /*
2390 * When the pipe CRC tap point is after the transcoders we need
2391 * to tweak symbol-level features to produce a deterministic series of
2392 * symbols for a given frame. We need to reset those features only once
2393 * a frame (instead of every nth symbol):
2394 * - DC-balance: used to ensure a better clock recovery from the data
2395 * link (SDVO)
2396 * - DisplayPort scrambling: used for EMI reduction
2397 */
2398 if (need_stable_symbols) {
2399 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
2400
2401 WARN_ON(!IS_G4X(dev));
2402
2403 tmp |= DC_BALANCE_RESET_VLV;
2404 if (pipe == PIPE_A)
2405 tmp |= PIPE_A_SCRAMBLE_RESET;
2406 else
2407 tmp |= PIPE_B_SCRAMBLE_RESET;
2408
2409 I915_WRITE(PORT_DFT2_G4X, tmp);
2410 }
2411
2412 return 0;
2413 }
2414
2415 static int i9xx_pipe_crc_ctl_reg(struct drm_device *dev,
2416 enum pipe pipe,
2417 enum intel_pipe_crc_source *source,
2418 uint32_t *val)
2419 {
2420 struct drm_i915_private *dev_priv = dev->dev_private;
2421 bool need_stable_symbols = false;
2422
2423 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO) {
2424 int ret = i9xx_pipe_crc_auto_source(dev, pipe, source);
2425 if (ret)
2426 return ret;
2427 }
2428
2429 switch (*source) {
2430 case INTEL_PIPE_CRC_SOURCE_PIPE:
2431 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_I9XX;
2432 break;
2433 case INTEL_PIPE_CRC_SOURCE_TV:
2434 if (!SUPPORTS_TV(dev))
2435 return -EINVAL;
2436 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_TV_PRE;
2437 break;
2438 case INTEL_PIPE_CRC_SOURCE_DP_B:
2439 if (!IS_G4X(dev))
2440 return -EINVAL;
2441 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_B_G4X;
2442 need_stable_symbols = true;
2443 break;
2444 case INTEL_PIPE_CRC_SOURCE_DP_C:
2445 if (!IS_G4X(dev))
2446 return -EINVAL;
2447 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_C_G4X;
2448 need_stable_symbols = true;
2449 break;
2450 case INTEL_PIPE_CRC_SOURCE_DP_D:
2451 if (!IS_G4X(dev))
2452 return -EINVAL;
2453 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_D_G4X;
2454 need_stable_symbols = true;
2455 break;
2456 case INTEL_PIPE_CRC_SOURCE_NONE:
2457 *val = 0;
2458 break;
2459 default:
2460 return -EINVAL;
2461 }
2462
2463 /*
2464 * When the pipe CRC tap point is after the transcoders we need
2465 * to tweak symbol-level features to produce a deterministic series of
2466 * symbols for a given frame. We need to reset those features only once
2467 * a frame (instead of every nth symbol):
2468 * - DC-balance: used to ensure a better clock recovery from the data
2469 * link (SDVO)
2470 * - DisplayPort scrambling: used for EMI reduction
2471 */
2472 if (need_stable_symbols) {
2473 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
2474
2475 WARN_ON(!IS_G4X(dev));
2476
2477 I915_WRITE(PORT_DFT_I9XX,
2478 I915_READ(PORT_DFT_I9XX) | DC_BALANCE_RESET);
2479
2480 if (pipe == PIPE_A)
2481 tmp |= PIPE_A_SCRAMBLE_RESET;
2482 else
2483 tmp |= PIPE_B_SCRAMBLE_RESET;
2484
2485 I915_WRITE(PORT_DFT2_G4X, tmp);
2486 }
2487
2488 return 0;
2489 }
2490
2491 static void vlv_undo_pipe_scramble_reset(struct drm_device *dev,
2492 enum pipe pipe)
2493 {
2494 struct drm_i915_private *dev_priv = dev->dev_private;
2495 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
2496
2497 if (pipe == PIPE_A)
2498 tmp &= ~PIPE_A_SCRAMBLE_RESET;
2499 else
2500 tmp &= ~PIPE_B_SCRAMBLE_RESET;
2501 if (!(tmp & PIPE_SCRAMBLE_RESET_MASK))
2502 tmp &= ~DC_BALANCE_RESET_VLV;
2503 I915_WRITE(PORT_DFT2_G4X, tmp);
2504
2505 }
2506
2507 static void g4x_undo_pipe_scramble_reset(struct drm_device *dev,
2508 enum pipe pipe)
2509 {
2510 struct drm_i915_private *dev_priv = dev->dev_private;
2511 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
2512
2513 if (pipe == PIPE_A)
2514 tmp &= ~PIPE_A_SCRAMBLE_RESET;
2515 else
2516 tmp &= ~PIPE_B_SCRAMBLE_RESET;
2517 I915_WRITE(PORT_DFT2_G4X, tmp);
2518
2519 if (!(tmp & PIPE_SCRAMBLE_RESET_MASK)) {
2520 I915_WRITE(PORT_DFT_I9XX,
2521 I915_READ(PORT_DFT_I9XX) & ~DC_BALANCE_RESET);
2522 }
2523 }
2524
2525 static int ilk_pipe_crc_ctl_reg(enum intel_pipe_crc_source *source,
2526 uint32_t *val)
2527 {
2528 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
2529 *source = INTEL_PIPE_CRC_SOURCE_PIPE;
2530
2531 switch (*source) {
2532 case INTEL_PIPE_CRC_SOURCE_PLANE1:
2533 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_ILK;
2534 break;
2535 case INTEL_PIPE_CRC_SOURCE_PLANE2:
2536 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_ILK;
2537 break;
2538 case INTEL_PIPE_CRC_SOURCE_PIPE:
2539 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_ILK;
2540 break;
2541 case INTEL_PIPE_CRC_SOURCE_NONE:
2542 *val = 0;
2543 break;
2544 default:
2545 return -EINVAL;
2546 }
2547
2548 return 0;
2549 }
2550
2551 static int ivb_pipe_crc_ctl_reg(enum intel_pipe_crc_source *source,
2552 uint32_t *val)
2553 {
2554 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
2555 *source = INTEL_PIPE_CRC_SOURCE_PF;
2556
2557 switch (*source) {
2558 case INTEL_PIPE_CRC_SOURCE_PLANE1:
2559 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_IVB;
2560 break;
2561 case INTEL_PIPE_CRC_SOURCE_PLANE2:
2562 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_IVB;
2563 break;
2564 case INTEL_PIPE_CRC_SOURCE_PF:
2565 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PF_IVB;
2566 break;
2567 case INTEL_PIPE_CRC_SOURCE_NONE:
2568 *val = 0;
2569 break;
2570 default:
2571 return -EINVAL;
2572 }
2573
2574 return 0;
2575 }
2576
2577 static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe,
2578 enum intel_pipe_crc_source source)
2579 {
2580 struct drm_i915_private *dev_priv = dev->dev_private;
2581 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];
2582 u32 val = 0; /* shut up gcc */
2583 int ret;
2584
2585 if (pipe_crc->source == source)
2586 return 0;
2587
2588 /* forbid changing the source without going back to 'none' */
2589 if (pipe_crc->source && source)
2590 return -EINVAL;
2591
2592 if (IS_GEN2(dev))
2593 ret = i8xx_pipe_crc_ctl_reg(&source, &val);
2594 else if (INTEL_INFO(dev)->gen < 5)
2595 ret = i9xx_pipe_crc_ctl_reg(dev, pipe, &source, &val);
2596 else if (IS_VALLEYVIEW(dev))
2597 ret = vlv_pipe_crc_ctl_reg(dev,pipe, &source, &val);
2598 else if (IS_GEN5(dev) || IS_GEN6(dev))
2599 ret = ilk_pipe_crc_ctl_reg(&source, &val);
2600 else
2601 ret = ivb_pipe_crc_ctl_reg(&source, &val);
2602
2603 if (ret != 0)
2604 return ret;
2605
2606 /* none -> real source transition */
2607 if (source) {
2608 DRM_DEBUG_DRIVER("collecting CRCs for pipe %c, %s\n",
2609 pipe_name(pipe), pipe_crc_source_name(source));
2610
2611 pipe_crc->entries = kzalloc(sizeof(*pipe_crc->entries) *
2612 INTEL_PIPE_CRC_ENTRIES_NR,
2613 GFP_KERNEL);
2614 if (!pipe_crc->entries)
2615 return -ENOMEM;
2616
2617 spin_lock_irq(&pipe_crc->lock);
2618 pipe_crc->head = 0;
2619 pipe_crc->tail = 0;
2620 spin_unlock_irq(&pipe_crc->lock);
2621 }
2622
2623 pipe_crc->source = source;
2624
2625 I915_WRITE(PIPE_CRC_CTL(pipe), val);
2626 POSTING_READ(PIPE_CRC_CTL(pipe));
2627
2628 /* real source -> none transition */
2629 if (source == INTEL_PIPE_CRC_SOURCE_NONE) {
2630 struct intel_pipe_crc_entry *entries;
2631
2632 DRM_DEBUG_DRIVER("stopping CRCs for pipe %c\n",
2633 pipe_name(pipe));
2634
2635 intel_wait_for_vblank(dev, pipe);
2636
2637 spin_lock_irq(&pipe_crc->lock);
2638 entries = pipe_crc->entries;
2639 pipe_crc->entries = NULL;
2640 spin_unlock_irq(&pipe_crc->lock);
2641
2642 kfree(entries);
2643
2644 if (IS_G4X(dev))
2645 g4x_undo_pipe_scramble_reset(dev, pipe);
2646 else if (IS_VALLEYVIEW(dev))
2647 vlv_undo_pipe_scramble_reset(dev, pipe);
2648 }
2649
2650 return 0;
2651 }
2652
2653 /*
2654 * Parse pipe CRC command strings:
2655 * command: wsp* object wsp+ name wsp+ source wsp*
2656 * object: 'pipe'
2657 * name: (A | B | C)
2658 * source: (none | plane1 | plane2 | pf)
2659 * wsp: (#0x20 | #0x9 | #0xA)+
2660 *
2661 * eg.:
2662 * "pipe A plane1" -> Start CRC computations on plane1 of pipe A
2663 * "pipe A none" -> Stop CRC
2664 */
2665 static int display_crc_ctl_tokenize(char *buf, char *words[], int max_words)
2666 {
2667 int n_words = 0;
2668
2669 while (*buf) {
2670 char *end;
2671
2672 /* skip leading white space */
2673 buf = skip_spaces(buf);
2674 if (!*buf)
2675 break; /* end of buffer */
2676
2677 /* find end of word */
2678 for (end = buf; *end && !isspace(*end); end++)
2679 ;
2680
2681 if (n_words == max_words) {
2682 DRM_DEBUG_DRIVER("too many words, allowed <= %d\n",
2683 max_words);
2684 return -EINVAL; /* ran out of words[] before bytes */
2685 }
2686
2687 if (*end)
2688 *end++ = '\0';
2689 words[n_words++] = buf;
2690 buf = end;
2691 }
2692
2693 return n_words;
2694 }
2695
2696 enum intel_pipe_crc_object {
2697 PIPE_CRC_OBJECT_PIPE,
2698 };
2699
2700 static const char * const pipe_crc_objects[] = {
2701 "pipe",
2702 };
2703
2704 static int
2705 display_crc_ctl_parse_object(const char *buf, enum intel_pipe_crc_object *o)
2706 {
2707 int i;
2708
2709 for (i = 0; i < ARRAY_SIZE(pipe_crc_objects); i++)
2710 if (!strcmp(buf, pipe_crc_objects[i])) {
2711 *o = i;
2712 return 0;
2713 }
2714
2715 return -EINVAL;
2716 }
2717
2718 static int display_crc_ctl_parse_pipe(const char *buf, enum pipe *pipe)
2719 {
2720 const char name = buf[0];
2721
2722 if (name < 'A' || name >= pipe_name(I915_MAX_PIPES))
2723 return -EINVAL;
2724
2725 *pipe = name - 'A';
2726
2727 return 0;
2728 }
2729
2730 static int
2731 display_crc_ctl_parse_source(const char *buf, enum intel_pipe_crc_source *s)
2732 {
2733 int i;
2734
2735 for (i = 0; i < ARRAY_SIZE(pipe_crc_sources); i++)
2736 if (!strcmp(buf, pipe_crc_sources[i])) {
2737 *s = i;
2738 return 0;
2739 }
2740
2741 return -EINVAL;
2742 }
2743
2744 static int display_crc_ctl_parse(struct drm_device *dev, char *buf, size_t len)
2745 {
2746 #define N_WORDS 3
2747 int n_words;
2748 char *words[N_WORDS];
2749 enum pipe pipe;
2750 enum intel_pipe_crc_object object;
2751 enum intel_pipe_crc_source source;
2752
2753 n_words = display_crc_ctl_tokenize(buf, words, N_WORDS);
2754 if (n_words != N_WORDS) {
2755 DRM_DEBUG_DRIVER("tokenize failed, a command is %d words\n",
2756 N_WORDS);
2757 return -EINVAL;
2758 }
2759
2760 if (display_crc_ctl_parse_object(words[0], &object) < 0) {
2761 DRM_DEBUG_DRIVER("unknown object %s\n", words[0]);
2762 return -EINVAL;
2763 }
2764
2765 if (display_crc_ctl_parse_pipe(words[1], &pipe) < 0) {
2766 DRM_DEBUG_DRIVER("unknown pipe %s\n", words[1]);
2767 return -EINVAL;
2768 }
2769
2770 if (display_crc_ctl_parse_source(words[2], &source) < 0) {
2771 DRM_DEBUG_DRIVER("unknown source %s\n", words[2]);
2772 return -EINVAL;
2773 }
2774
2775 return pipe_crc_set_source(dev, pipe, source);
2776 }
2777
2778 static ssize_t display_crc_ctl_write(struct file *file, const char __user *ubuf,
2779 size_t len, loff_t *offp)
2780 {
2781 struct seq_file *m = file->private_data;
2782 struct drm_device *dev = m->private;
2783 char *tmpbuf;
2784 int ret;
2785
2786 if (len == 0)
2787 return 0;
2788
2789 if (len > PAGE_SIZE - 1) {
2790 DRM_DEBUG_DRIVER("expected <%lu bytes into pipe crc control\n",
2791 PAGE_SIZE);
2792 return -E2BIG;
2793 }
2794
2795 tmpbuf = kmalloc(len + 1, GFP_KERNEL);
2796 if (!tmpbuf)
2797 return -ENOMEM;
2798
2799 if (copy_from_user(tmpbuf, ubuf, len)) {
2800 ret = -EFAULT;
2801 goto out;
2802 }
2803 tmpbuf[len] = '\0';
2804
2805 ret = display_crc_ctl_parse(dev, tmpbuf, len);
2806
2807 out:
2808 kfree(tmpbuf);
2809 if (ret < 0)
2810 return ret;
2811
2812 *offp += len;
2813 return len;
2814 }
2815
2816 static const struct file_operations i915_display_crc_ctl_fops = {
2817 .owner = THIS_MODULE,
2818 .open = display_crc_ctl_open,
2819 .read = seq_read,
2820 .llseek = seq_lseek,
2821 .release = single_release,
2822 .write = display_crc_ctl_write
2823 };
2824
2825 static void wm_latency_show(struct seq_file *m, const uint16_t wm[5])
2826 {
2827 struct drm_device *dev = m->private;
2828 int num_levels = IS_HASWELL(dev) || IS_BROADWELL(dev) ? 5 : 4;
2829 int level;
2830
2831 drm_modeset_lock_all(dev);
2832
2833 for (level = 0; level < num_levels; level++) {
2834 unsigned int latency = wm[level];
2835
2836 /* WM1+ latency values in 0.5us units */
2837 if (level > 0)
2838 latency *= 5;
2839
2840 seq_printf(m, "WM%d %u (%u.%u usec)\n",
2841 level, wm[level],
2842 latency / 10, latency % 10);
2843 }
2844
2845 drm_modeset_unlock_all(dev);
2846 }
2847
2848 static int pri_wm_latency_show(struct seq_file *m, void *data)
2849 {
2850 struct drm_device *dev = m->private;
2851
2852 wm_latency_show(m, to_i915(dev)->wm.pri_latency);
2853
2854 return 0;
2855 }
2856
2857 static int spr_wm_latency_show(struct seq_file *m, void *data)
2858 {
2859 struct drm_device *dev = m->private;
2860
2861 wm_latency_show(m, to_i915(dev)->wm.spr_latency);
2862
2863 return 0;
2864 }
2865
2866 static int cur_wm_latency_show(struct seq_file *m, void *data)
2867 {
2868 struct drm_device *dev = m->private;
2869
2870 wm_latency_show(m, to_i915(dev)->wm.cur_latency);
2871
2872 return 0;
2873 }
2874
2875 static int pri_wm_latency_open(struct inode *inode, struct file *file)
2876 {
2877 struct drm_device *dev = inode->i_private;
2878
2879 if (!HAS_PCH_SPLIT(dev))
2880 return -ENODEV;
2881
2882 return single_open(file, pri_wm_latency_show, dev);
2883 }
2884
2885 static int spr_wm_latency_open(struct inode *inode, struct file *file)
2886 {
2887 struct drm_device *dev = inode->i_private;
2888
2889 if (!HAS_PCH_SPLIT(dev))
2890 return -ENODEV;
2891
2892 return single_open(file, spr_wm_latency_show, dev);
2893 }
2894
2895 static int cur_wm_latency_open(struct inode *inode, struct file *file)
2896 {
2897 struct drm_device *dev = inode->i_private;
2898
2899 if (!HAS_PCH_SPLIT(dev))
2900 return -ENODEV;
2901
2902 return single_open(file, cur_wm_latency_show, dev);
2903 }
2904
2905 static ssize_t wm_latency_write(struct file *file, const char __user *ubuf,
2906 size_t len, loff_t *offp, uint16_t wm[5])
2907 {
2908 struct seq_file *m = file->private_data;
2909 struct drm_device *dev = m->private;
2910 uint16_t new[5] = { 0 };
2911 int num_levels = IS_HASWELL(dev) || IS_BROADWELL(dev) ? 5 : 4;
2912 int level;
2913 int ret;
2914 char tmp[32];
2915
2916 if (len >= sizeof(tmp))
2917 return -EINVAL;
2918
2919 if (copy_from_user(tmp, ubuf, len))
2920 return -EFAULT;
2921
2922 tmp[len] = '\0';
2923
2924 ret = sscanf(tmp, "%hu %hu %hu %hu %hu", &new[0], &new[1], &new[2], &new[3], &new[4]);
2925 if (ret != num_levels)
2926 return -EINVAL;
2927
2928 drm_modeset_lock_all(dev);
2929
2930 for (level = 0; level < num_levels; level++)
2931 wm[level] = new[level];
2932
2933 drm_modeset_unlock_all(dev);
2934
2935 return len;
2936 }
2937
2938
2939 static ssize_t pri_wm_latency_write(struct file *file, const char __user *ubuf,
2940 size_t len, loff_t *offp)
2941 {
2942 struct seq_file *m = file->private_data;
2943 struct drm_device *dev = m->private;
2944
2945 return wm_latency_write(file, ubuf, len, offp, to_i915(dev)->wm.pri_latency);
2946 }
2947
2948 static ssize_t spr_wm_latency_write(struct file *file, const char __user *ubuf,
2949 size_t len, loff_t *offp)
2950 {
2951 struct seq_file *m = file->private_data;
2952 struct drm_device *dev = m->private;
2953
2954 return wm_latency_write(file, ubuf, len, offp, to_i915(dev)->wm.spr_latency);
2955 }
2956
2957 static ssize_t cur_wm_latency_write(struct file *file, const char __user *ubuf,
2958 size_t len, loff_t *offp)
2959 {
2960 struct seq_file *m = file->private_data;
2961 struct drm_device *dev = m->private;
2962
2963 return wm_latency_write(file, ubuf, len, offp, to_i915(dev)->wm.cur_latency);
2964 }
2965
2966 static const struct file_operations i915_pri_wm_latency_fops = {
2967 .owner = THIS_MODULE,
2968 .open = pri_wm_latency_open,
2969 .read = seq_read,
2970 .llseek = seq_lseek,
2971 .release = single_release,
2972 .write = pri_wm_latency_write
2973 };
2974
2975 static const struct file_operations i915_spr_wm_latency_fops = {
2976 .owner = THIS_MODULE,
2977 .open = spr_wm_latency_open,
2978 .read = seq_read,
2979 .llseek = seq_lseek,
2980 .release = single_release,
2981 .write = spr_wm_latency_write
2982 };
2983
2984 static const struct file_operations i915_cur_wm_latency_fops = {
2985 .owner = THIS_MODULE,
2986 .open = cur_wm_latency_open,
2987 .read = seq_read,
2988 .llseek = seq_lseek,
2989 .release = single_release,
2990 .write = cur_wm_latency_write
2991 };
2992
2993 static int
2994 i915_wedged_get(void *data, u64 *val)
2995 {
2996 struct drm_device *dev = data;
2997 drm_i915_private_t *dev_priv = dev->dev_private;
2998
2999 *val = atomic_read(&dev_priv->gpu_error.reset_counter);
3000
3001 return 0;
3002 }
3003
3004 static int
3005 i915_wedged_set(void *data, u64 val)
3006 {
3007 struct drm_device *dev = data;
3008
3009 DRM_INFO("Manually setting wedged to %llu\n", val);
3010 i915_handle_error(dev, val);
3011
3012 return 0;
3013 }
3014
3015 DEFINE_SIMPLE_ATTRIBUTE(i915_wedged_fops,
3016 i915_wedged_get, i915_wedged_set,
3017 "%llu\n");
3018
3019 static int
3020 i915_ring_stop_get(void *data, u64 *val)
3021 {
3022 struct drm_device *dev = data;
3023 drm_i915_private_t *dev_priv = dev->dev_private;
3024
3025 *val = dev_priv->gpu_error.stop_rings;
3026
3027 return 0;
3028 }
3029
3030 static int
3031 i915_ring_stop_set(void *data, u64 val)
3032 {
3033 struct drm_device *dev = data;
3034 struct drm_i915_private *dev_priv = dev->dev_private;
3035 int ret;
3036
3037 DRM_DEBUG_DRIVER("Stopping rings 0x%08llx\n", val);
3038
3039 ret = mutex_lock_interruptible(&dev->struct_mutex);
3040 if (ret)
3041 return ret;
3042
3043 dev_priv->gpu_error.stop_rings = val;
3044 mutex_unlock(&dev->struct_mutex);
3045
3046 return 0;
3047 }
3048
3049 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_stop_fops,
3050 i915_ring_stop_get, i915_ring_stop_set,
3051 "0x%08llx\n");
3052
3053 static int
3054 i915_ring_missed_irq_get(void *data, u64 *val)
3055 {
3056 struct drm_device *dev = data;
3057 struct drm_i915_private *dev_priv = dev->dev_private;
3058
3059 *val = dev_priv->gpu_error.missed_irq_rings;
3060 return 0;
3061 }
3062
3063 static int
3064 i915_ring_missed_irq_set(void *data, u64 val)
3065 {
3066 struct drm_device *dev = data;
3067 struct drm_i915_private *dev_priv = dev->dev_private;
3068 int ret;
3069
3070 /* Lock against concurrent debugfs callers */
3071 ret = mutex_lock_interruptible(&dev->struct_mutex);
3072 if (ret)
3073 return ret;
3074 dev_priv->gpu_error.missed_irq_rings = val;
3075 mutex_unlock(&dev->struct_mutex);
3076
3077 return 0;
3078 }
3079
3080 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_missed_irq_fops,
3081 i915_ring_missed_irq_get, i915_ring_missed_irq_set,
3082 "0x%08llx\n");
3083
3084 static int
3085 i915_ring_test_irq_get(void *data, u64 *val)
3086 {
3087 struct drm_device *dev = data;
3088 struct drm_i915_private *dev_priv = dev->dev_private;
3089
3090 *val = dev_priv->gpu_error.test_irq_rings;
3091
3092 return 0;
3093 }
3094
3095 static int
3096 i915_ring_test_irq_set(void *data, u64 val)
3097 {
3098 struct drm_device *dev = data;
3099 struct drm_i915_private *dev_priv = dev->dev_private;
3100 int ret;
3101
3102 DRM_DEBUG_DRIVER("Masking interrupts on rings 0x%08llx\n", val);
3103
3104 /* Lock against concurrent debugfs callers */
3105 ret = mutex_lock_interruptible(&dev->struct_mutex);
3106 if (ret)
3107 return ret;
3108
3109 dev_priv->gpu_error.test_irq_rings = val;
3110 mutex_unlock(&dev->struct_mutex);
3111
3112 return 0;
3113 }
3114
3115 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_test_irq_fops,
3116 i915_ring_test_irq_get, i915_ring_test_irq_set,
3117 "0x%08llx\n");
3118
3119 #define DROP_UNBOUND 0x1
3120 #define DROP_BOUND 0x2
3121 #define DROP_RETIRE 0x4
3122 #define DROP_ACTIVE 0x8
3123 #define DROP_ALL (DROP_UNBOUND | \
3124 DROP_BOUND | \
3125 DROP_RETIRE | \
3126 DROP_ACTIVE)
3127 static int
3128 i915_drop_caches_get(void *data, u64 *val)
3129 {
3130 *val = DROP_ALL;
3131
3132 return 0;
3133 }
3134
3135 static int
3136 i915_drop_caches_set(void *data, u64 val)
3137 {
3138 struct drm_device *dev = data;
3139 struct drm_i915_private *dev_priv = dev->dev_private;
3140 struct drm_i915_gem_object *obj, *next;
3141 struct i915_address_space *vm;
3142 struct i915_vma *vma, *x;
3143 int ret;
3144
3145 DRM_DEBUG("Dropping caches: 0x%08llx\n", val);
3146
3147 /* No need to check and wait for gpu resets, only libdrm auto-restarts
3148 * on ioctls on -EAGAIN. */
3149 ret = mutex_lock_interruptible(&dev->struct_mutex);
3150 if (ret)
3151 return ret;
3152
3153 if (val & DROP_ACTIVE) {
3154 ret = i915_gpu_idle(dev);
3155 if (ret)
3156 goto unlock;
3157 }
3158
3159 if (val & (DROP_RETIRE | DROP_ACTIVE))
3160 i915_gem_retire_requests(dev);
3161
3162 if (val & DROP_BOUND) {
3163 list_for_each_entry(vm, &dev_priv->vm_list, global_link) {
3164 list_for_each_entry_safe(vma, x, &vm->inactive_list,
3165 mm_list) {
3166 if (vma->pin_count)
3167 continue;
3168
3169 ret = i915_vma_unbind(vma);
3170 if (ret)
3171 goto unlock;
3172 }
3173 }
3174 }
3175
3176 if (val & DROP_UNBOUND) {
3177 list_for_each_entry_safe(obj, next, &dev_priv->mm.unbound_list,
3178 global_list)
3179 if (obj->pages_pin_count == 0) {
3180 ret = i915_gem_object_put_pages(obj);
3181 if (ret)
3182 goto unlock;
3183 }
3184 }
3185
3186 unlock:
3187 mutex_unlock(&dev->struct_mutex);
3188
3189 return ret;
3190 }
3191
3192 DEFINE_SIMPLE_ATTRIBUTE(i915_drop_caches_fops,
3193 i915_drop_caches_get, i915_drop_caches_set,
3194 "0x%08llx\n");
3195
3196 static int
3197 i915_max_freq_get(void *data, u64 *val)
3198 {
3199 struct drm_device *dev = data;
3200 drm_i915_private_t *dev_priv = dev->dev_private;
3201 int ret;
3202
3203 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
3204 return -ENODEV;
3205
3206 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
3207
3208 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
3209 if (ret)
3210 return ret;
3211
3212 if (IS_VALLEYVIEW(dev))
3213 *val = vlv_gpu_freq(dev_priv, dev_priv->rps.max_delay);
3214 else
3215 *val = dev_priv->rps.max_delay * GT_FREQUENCY_MULTIPLIER;
3216 mutex_unlock(&dev_priv->rps.hw_lock);
3217
3218 return 0;
3219 }
3220
3221 static int
3222 i915_max_freq_set(void *data, u64 val)
3223 {
3224 struct drm_device *dev = data;
3225 struct drm_i915_private *dev_priv = dev->dev_private;
3226 u32 rp_state_cap, hw_max, hw_min;
3227 int ret;
3228
3229 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
3230 return -ENODEV;
3231
3232 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
3233
3234 DRM_DEBUG_DRIVER("Manually setting max freq to %llu\n", val);
3235
3236 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
3237 if (ret)
3238 return ret;
3239
3240 /*
3241 * Turbo will still be enabled, but won't go above the set value.
3242 */
3243 if (IS_VALLEYVIEW(dev)) {
3244 val = vlv_freq_opcode(dev_priv, val);
3245
3246 hw_max = valleyview_rps_max_freq(dev_priv);
3247 hw_min = valleyview_rps_min_freq(dev_priv);
3248 } else {
3249 do_div(val, GT_FREQUENCY_MULTIPLIER);
3250
3251 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
3252 hw_max = dev_priv->rps.hw_max;
3253 hw_min = (rp_state_cap >> 16) & 0xff;
3254 }
3255
3256 if (val < hw_min || val > hw_max || val < dev_priv->rps.min_delay) {
3257 mutex_unlock(&dev_priv->rps.hw_lock);
3258 return -EINVAL;
3259 }
3260
3261 dev_priv->rps.max_delay = val;
3262
3263 if (IS_VALLEYVIEW(dev))
3264 valleyview_set_rps(dev, val);
3265 else
3266 gen6_set_rps(dev, val);
3267
3268 mutex_unlock(&dev_priv->rps.hw_lock);
3269
3270 return 0;
3271 }
3272
3273 DEFINE_SIMPLE_ATTRIBUTE(i915_max_freq_fops,
3274 i915_max_freq_get, i915_max_freq_set,
3275 "%llu\n");
3276
3277 static int
3278 i915_min_freq_get(void *data, u64 *val)
3279 {
3280 struct drm_device *dev = data;
3281 drm_i915_private_t *dev_priv = dev->dev_private;
3282 int ret;
3283
3284 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
3285 return -ENODEV;
3286
3287 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
3288
3289 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
3290 if (ret)
3291 return ret;
3292
3293 if (IS_VALLEYVIEW(dev))
3294 *val = vlv_gpu_freq(dev_priv, dev_priv->rps.min_delay);
3295 else
3296 *val = dev_priv->rps.min_delay * GT_FREQUENCY_MULTIPLIER;
3297 mutex_unlock(&dev_priv->rps.hw_lock);
3298
3299 return 0;
3300 }
3301
3302 static int
3303 i915_min_freq_set(void *data, u64 val)
3304 {
3305 struct drm_device *dev = data;
3306 struct drm_i915_private *dev_priv = dev->dev_private;
3307 u32 rp_state_cap, hw_max, hw_min;
3308 int ret;
3309
3310 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
3311 return -ENODEV;
3312
3313 flush_delayed_work(&dev_priv->rps.delayed_resume_work);
3314
3315 DRM_DEBUG_DRIVER("Manually setting min freq to %llu\n", val);
3316
3317 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
3318 if (ret)
3319 return ret;
3320
3321 /*
3322 * Turbo will still be enabled, but won't go below the set value.
3323 */
3324 if (IS_VALLEYVIEW(dev)) {
3325 val = vlv_freq_opcode(dev_priv, val);
3326
3327 hw_max = valleyview_rps_max_freq(dev_priv);
3328 hw_min = valleyview_rps_min_freq(dev_priv);
3329 } else {
3330 do_div(val, GT_FREQUENCY_MULTIPLIER);
3331
3332 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
3333 hw_max = dev_priv->rps.hw_max;
3334 hw_min = (rp_state_cap >> 16) & 0xff;
3335 }
3336
3337 if (val < hw_min || val > hw_max || val > dev_priv->rps.max_delay) {
3338 mutex_unlock(&dev_priv->rps.hw_lock);
3339 return -EINVAL;
3340 }
3341
3342 dev_priv->rps.min_delay = val;
3343
3344 if (IS_VALLEYVIEW(dev))
3345 valleyview_set_rps(dev, val);
3346 else
3347 gen6_set_rps(dev, val);
3348
3349 mutex_unlock(&dev_priv->rps.hw_lock);
3350
3351 return 0;
3352 }
3353
3354 DEFINE_SIMPLE_ATTRIBUTE(i915_min_freq_fops,
3355 i915_min_freq_get, i915_min_freq_set,
3356 "%llu\n");
3357
3358 static int
3359 i915_cache_sharing_get(void *data, u64 *val)
3360 {
3361 struct drm_device *dev = data;
3362 drm_i915_private_t *dev_priv = dev->dev_private;
3363 u32 snpcr;
3364 int ret;
3365
3366 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
3367 return -ENODEV;
3368
3369 ret = mutex_lock_interruptible(&dev->struct_mutex);
3370 if (ret)
3371 return ret;
3372 intel_runtime_pm_get(dev_priv);
3373
3374 snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
3375
3376 intel_runtime_pm_put(dev_priv);
3377 mutex_unlock(&dev_priv->dev->struct_mutex);
3378
3379 *val = (snpcr & GEN6_MBC_SNPCR_MASK) >> GEN6_MBC_SNPCR_SHIFT;
3380
3381 return 0;
3382 }
3383
3384 static int
3385 i915_cache_sharing_set(void *data, u64 val)
3386 {
3387 struct drm_device *dev = data;
3388 struct drm_i915_private *dev_priv = dev->dev_private;
3389 u32 snpcr;
3390
3391 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
3392 return -ENODEV;
3393
3394 if (val > 3)
3395 return -EINVAL;
3396
3397 intel_runtime_pm_get(dev_priv);
3398 DRM_DEBUG_DRIVER("Manually setting uncore sharing to %llu\n", val);
3399
3400 /* Update the cache sharing policy here as well */
3401 snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
3402 snpcr &= ~GEN6_MBC_SNPCR_MASK;
3403 snpcr |= (val << GEN6_MBC_SNPCR_SHIFT);
3404 I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr);
3405
3406 intel_runtime_pm_put(dev_priv);
3407 return 0;
3408 }
3409
3410 DEFINE_SIMPLE_ATTRIBUTE(i915_cache_sharing_fops,
3411 i915_cache_sharing_get, i915_cache_sharing_set,
3412 "%llu\n");
3413
3414 static int i915_forcewake_open(struct inode *inode, struct file *file)
3415 {
3416 struct drm_device *dev = inode->i_private;
3417 struct drm_i915_private *dev_priv = dev->dev_private;
3418
3419 if (INTEL_INFO(dev)->gen < 6)
3420 return 0;
3421
3422 intel_runtime_pm_get(dev_priv);
3423 gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL);
3424
3425 return 0;
3426 }
3427
3428 static int i915_forcewake_release(struct inode *inode, struct file *file)
3429 {
3430 struct drm_device *dev = inode->i_private;
3431 struct drm_i915_private *dev_priv = dev->dev_private;
3432
3433 if (INTEL_INFO(dev)->gen < 6)
3434 return 0;
3435
3436 gen6_gt_force_wake_put(dev_priv, FORCEWAKE_ALL);
3437 intel_runtime_pm_put(dev_priv);
3438
3439 return 0;
3440 }
3441
3442 static const struct file_operations i915_forcewake_fops = {
3443 .owner = THIS_MODULE,
3444 .open = i915_forcewake_open,
3445 .release = i915_forcewake_release,
3446 };
3447
3448 static int i915_forcewake_create(struct dentry *root, struct drm_minor *minor)
3449 {
3450 struct drm_device *dev = minor->dev;
3451 struct dentry *ent;
3452
3453 ent = debugfs_create_file("i915_forcewake_user",
3454 S_IRUSR,
3455 root, dev,
3456 &i915_forcewake_fops);
3457 if (!ent)
3458 return -ENOMEM;
3459
3460 return drm_add_fake_info_node(minor, ent, &i915_forcewake_fops);
3461 }
3462
3463 static int i915_debugfs_create(struct dentry *root,
3464 struct drm_minor *minor,
3465 const char *name,
3466 const struct file_operations *fops)
3467 {
3468 struct drm_device *dev = minor->dev;
3469 struct dentry *ent;
3470
3471 ent = debugfs_create_file(name,
3472 S_IRUGO | S_IWUSR,
3473 root, dev,
3474 fops);
3475 if (!ent)
3476 return -ENOMEM;
3477
3478 return drm_add_fake_info_node(minor, ent, fops);
3479 }
3480
3481 static const struct drm_info_list i915_debugfs_list[] = {
3482 {"i915_capabilities", i915_capabilities, 0},
3483 {"i915_gem_objects", i915_gem_object_info, 0},
3484 {"i915_gem_gtt", i915_gem_gtt_info, 0},
3485 {"i915_gem_pinned", i915_gem_gtt_info, 0, (void *) PINNED_LIST},
3486 {"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
3487 {"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST},
3488 {"i915_gem_stolen", i915_gem_stolen_list_info },
3489 {"i915_gem_pageflip", i915_gem_pageflip_info, 0},
3490 {"i915_gem_request", i915_gem_request_info, 0},
3491 {"i915_gem_seqno", i915_gem_seqno_info, 0},
3492 {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
3493 {"i915_gem_interrupt", i915_interrupt_info, 0},
3494 {"i915_gem_hws", i915_hws_info, 0, (void *)RCS},
3495 {"i915_gem_hws_blt", i915_hws_info, 0, (void *)BCS},
3496 {"i915_gem_hws_bsd", i915_hws_info, 0, (void *)VCS},
3497 {"i915_gem_hws_vebox", i915_hws_info, 0, (void *)VECS},
3498 {"i915_rstdby_delays", i915_rstdby_delays, 0},
3499 {"i915_cur_delayinfo", i915_cur_delayinfo, 0},
3500 {"i915_delayfreq_table", i915_delayfreq_table, 0},
3501 {"i915_inttoext_table", i915_inttoext_table, 0},
3502 {"i915_drpc_info", i915_drpc_info, 0},
3503 {"i915_emon_status", i915_emon_status, 0},
3504 {"i915_ring_freq_table", i915_ring_freq_table, 0},
3505 {"i915_gfxec", i915_gfxec, 0},
3506 {"i915_fbc_status", i915_fbc_status, 0},
3507 {"i915_ips_status", i915_ips_status, 0},
3508 {"i915_sr_status", i915_sr_status, 0},
3509 {"i915_opregion", i915_opregion, 0},
3510 {"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
3511 {"i915_context_status", i915_context_status, 0},
3512 {"i915_gen6_forcewake_count", i915_gen6_forcewake_count_info, 0},
3513 {"i915_swizzle_info", i915_swizzle_info, 0},
3514 {"i915_ppgtt_info", i915_ppgtt_info, 0},
3515 {"i915_dpio", i915_dpio_info, 0},
3516 {"i915_llc", i915_llc, 0},
3517 {"i915_edp_psr_status", i915_edp_psr_status, 0},
3518 {"i915_sink_crc_eDP1", i915_sink_crc, 0},
3519 {"i915_energy_uJ", i915_energy_uJ, 0},
3520 {"i915_pc8_status", i915_pc8_status, 0},
3521 {"i915_power_domain_info", i915_power_domain_info, 0},
3522 };
3523 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
3524
3525 static const struct i915_debugfs_files {
3526 const char *name;
3527 const struct file_operations *fops;
3528 } i915_debugfs_files[] = {
3529 {"i915_wedged", &i915_wedged_fops},
3530 {"i915_max_freq", &i915_max_freq_fops},
3531 {"i915_min_freq", &i915_min_freq_fops},
3532 {"i915_cache_sharing", &i915_cache_sharing_fops},
3533 {"i915_ring_stop", &i915_ring_stop_fops},
3534 {"i915_ring_missed_irq", &i915_ring_missed_irq_fops},
3535 {"i915_ring_test_irq", &i915_ring_test_irq_fops},
3536 {"i915_gem_drop_caches", &i915_drop_caches_fops},
3537 {"i915_error_state", &i915_error_state_fops},
3538 {"i915_next_seqno", &i915_next_seqno_fops},
3539 {"i915_display_crc_ctl", &i915_display_crc_ctl_fops},
3540 {"i915_pri_wm_latency", &i915_pri_wm_latency_fops},
3541 {"i915_spr_wm_latency", &i915_spr_wm_latency_fops},
3542 {"i915_cur_wm_latency", &i915_cur_wm_latency_fops},
3543 };
3544
3545 void intel_display_crc_init(struct drm_device *dev)
3546 {
3547 struct drm_i915_private *dev_priv = dev->dev_private;
3548 enum pipe pipe;
3549
3550 for_each_pipe(pipe) {
3551 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];
3552
3553 pipe_crc->opened = false;
3554 spin_lock_init(&pipe_crc->lock);
3555 init_waitqueue_head(&pipe_crc->wq);
3556 }
3557 }
3558
3559 int i915_debugfs_init(struct drm_minor *minor)
3560 {
3561 int ret, i;
3562
3563 ret = i915_forcewake_create(minor->debugfs_root, minor);
3564 if (ret)
3565 return ret;
3566
3567 for (i = 0; i < ARRAY_SIZE(i915_pipe_crc_data); i++) {
3568 ret = i915_pipe_crc_create(minor->debugfs_root, minor, i);
3569 if (ret)
3570 return ret;
3571 }
3572
3573 for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
3574 ret = i915_debugfs_create(minor->debugfs_root, minor,
3575 i915_debugfs_files[i].name,
3576 i915_debugfs_files[i].fops);
3577 if (ret)
3578 return ret;
3579 }
3580
3581 return drm_debugfs_create_files(i915_debugfs_list,
3582 I915_DEBUGFS_ENTRIES,
3583 minor->debugfs_root, minor);
3584 }
3585
3586 void i915_debugfs_cleanup(struct drm_minor *minor)
3587 {
3588 int i;
3589
3590 drm_debugfs_remove_files(i915_debugfs_list,
3591 I915_DEBUGFS_ENTRIES, minor);
3592
3593 drm_debugfs_remove_files((struct drm_info_list *) &i915_forcewake_fops,
3594 1, minor);
3595
3596 for (i = 0; i < ARRAY_SIZE(i915_pipe_crc_data); i++) {
3597 struct drm_info_list *info_list =
3598 (struct drm_info_list *)&i915_pipe_crc_data[i];
3599
3600 drm_debugfs_remove_files(info_list, 1, minor);
3601 }
3602
3603 for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
3604 struct drm_info_list *info_list =
3605 (struct drm_info_list *) i915_debugfs_files[i].fops;
3606
3607 drm_debugfs_remove_files(info_list, 1, minor);
3608 }
3609 }
Linux kernel - Deliverables
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