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Merge branch 'for-3.12/core' of git://git.kernel.dk/linux-block
[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/debugfs.h>
31 #include <linux/slab.h>
32 #include <linux/export.h>
33 #include <linux/list_sort.h>
34 #include <asm/msr-index.h>
35 #include <drm/drmP.h>
36 #include "intel_drv.h"
37 #include "intel_ringbuffer.h"
38 #include <drm/i915_drm.h>
39 #include "i915_drv.h"
40
41 #define DRM_I915_RING_DEBUG 1
42
43
44 #if defined(CONFIG_DEBUG_FS)
45
46 enum {
47 ACTIVE_LIST,
48 INACTIVE_LIST,
49 PINNED_LIST,
50 };
51
52 static const char *yesno(int v)
53 {
54 return v ? "yes" : "no";
55 }
56
57 static int i915_capabilities(struct seq_file *m, void *data)
58 {
59 struct drm_info_node *node = (struct drm_info_node *) m->private;
60 struct drm_device *dev = node->minor->dev;
61 const struct intel_device_info *info = INTEL_INFO(dev);
62
63 seq_printf(m, "gen: %d\n", info->gen);
64 seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev));
65 #define PRINT_FLAG(x) seq_printf(m, #x ": %s\n", yesno(info->x))
66 #define SEP_SEMICOLON ;
67 DEV_INFO_FOR_EACH_FLAG(PRINT_FLAG, SEP_SEMICOLON);
68 #undef PRINT_FLAG
69 #undef SEP_SEMICOLON
70
71 return 0;
72 }
73
74 static const char *get_pin_flag(struct drm_i915_gem_object *obj)
75 {
76 if (obj->user_pin_count > 0)
77 return "P";
78 else if (obj->pin_count > 0)
79 return "p";
80 else
81 return " ";
82 }
83
84 static const char *get_tiling_flag(struct drm_i915_gem_object *obj)
85 {
86 switch (obj->tiling_mode) {
87 default:
88 case I915_TILING_NONE: return " ";
89 case I915_TILING_X: return "X";
90 case I915_TILING_Y: return "Y";
91 }
92 }
93
94 static inline const char *get_global_flag(struct drm_i915_gem_object *obj)
95 {
96 return obj->has_global_gtt_mapping ? "g" : " ";
97 }
98
99 static void
100 describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
101 {
102 struct i915_vma *vma;
103 seq_printf(m, "%pK: %s%s%s %8zdKiB %02x %02x %u %u %u%s%s%s",
104 &obj->base,
105 get_pin_flag(obj),
106 get_tiling_flag(obj),
107 get_global_flag(obj),
108 obj->base.size / 1024,
109 obj->base.read_domains,
110 obj->base.write_domain,
111 obj->last_read_seqno,
112 obj->last_write_seqno,
113 obj->last_fenced_seqno,
114 i915_cache_level_str(obj->cache_level),
115 obj->dirty ? " dirty" : "",
116 obj->madv == I915_MADV_DONTNEED ? " purgeable" : "");
117 if (obj->base.name)
118 seq_printf(m, " (name: %d)", obj->base.name);
119 if (obj->pin_count)
120 seq_printf(m, " (pinned x %d)", obj->pin_count);
121 if (obj->pin_display)
122 seq_printf(m, " (display)");
123 if (obj->fence_reg != I915_FENCE_REG_NONE)
124 seq_printf(m, " (fence: %d)", obj->fence_reg);
125 list_for_each_entry(vma, &obj->vma_list, vma_link) {
126 if (!i915_is_ggtt(vma->vm))
127 seq_puts(m, " (pp");
128 else
129 seq_puts(m, " (g");
130 seq_printf(m, "gtt offset: %08lx, size: %08lx)",
131 vma->node.start, vma->node.size);
132 }
133 if (obj->stolen)
134 seq_printf(m, " (stolen: %08lx)", obj->stolen->start);
135 if (obj->pin_mappable || obj->fault_mappable) {
136 char s[3], *t = s;
137 if (obj->pin_mappable)
138 *t++ = 'p';
139 if (obj->fault_mappable)
140 *t++ = 'f';
141 *t = '\0';
142 seq_printf(m, " (%s mappable)", s);
143 }
144 if (obj->ring != NULL)
145 seq_printf(m, " (%s)", obj->ring->name);
146 }
147
148 static int i915_gem_object_list_info(struct seq_file *m, void *data)
149 {
150 struct drm_info_node *node = (struct drm_info_node *) m->private;
151 uintptr_t list = (uintptr_t) node->info_ent->data;
152 struct list_head *head;
153 struct drm_device *dev = node->minor->dev;
154 struct drm_i915_private *dev_priv = dev->dev_private;
155 struct i915_address_space *vm = &dev_priv->gtt.base;
156 struct i915_vma *vma;
157 size_t total_obj_size, total_gtt_size;
158 int count, ret;
159
160 ret = mutex_lock_interruptible(&dev->struct_mutex);
161 if (ret)
162 return ret;
163
164 /* FIXME: the user of this interface might want more than just GGTT */
165 switch (list) {
166 case ACTIVE_LIST:
167 seq_puts(m, "Active:\n");
168 head = &vm->active_list;
169 break;
170 case INACTIVE_LIST:
171 seq_puts(m, "Inactive:\n");
172 head = &vm->inactive_list;
173 break;
174 default:
175 mutex_unlock(&dev->struct_mutex);
176 return -EINVAL;
177 }
178
179 total_obj_size = total_gtt_size = count = 0;
180 list_for_each_entry(vma, head, mm_list) {
181 seq_printf(m, " ");
182 describe_obj(m, vma->obj);
183 seq_printf(m, "\n");
184 total_obj_size += vma->obj->base.size;
185 total_gtt_size += vma->node.size;
186 count++;
187 }
188 mutex_unlock(&dev->struct_mutex);
189
190 seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
191 count, total_obj_size, total_gtt_size);
192 return 0;
193 }
194
195 static int obj_rank_by_stolen(void *priv,
196 struct list_head *A, struct list_head *B)
197 {
198 struct drm_i915_gem_object *a =
199 container_of(A, struct drm_i915_gem_object, obj_exec_link);
200 struct drm_i915_gem_object *b =
201 container_of(B, struct drm_i915_gem_object, obj_exec_link);
202
203 return a->stolen->start - b->stolen->start;
204 }
205
206 static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
207 {
208 struct drm_info_node *node = (struct drm_info_node *) m->private;
209 struct drm_device *dev = node->minor->dev;
210 struct drm_i915_private *dev_priv = dev->dev_private;
211 struct drm_i915_gem_object *obj;
212 size_t total_obj_size, total_gtt_size;
213 LIST_HEAD(stolen);
214 int count, ret;
215
216 ret = mutex_lock_interruptible(&dev->struct_mutex);
217 if (ret)
218 return ret;
219
220 total_obj_size = total_gtt_size = count = 0;
221 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
222 if (obj->stolen == NULL)
223 continue;
224
225 list_add(&obj->obj_exec_link, &stolen);
226
227 total_obj_size += obj->base.size;
228 total_gtt_size += i915_gem_obj_ggtt_size(obj);
229 count++;
230 }
231 list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) {
232 if (obj->stolen == NULL)
233 continue;
234
235 list_add(&obj->obj_exec_link, &stolen);
236
237 total_obj_size += obj->base.size;
238 count++;
239 }
240 list_sort(NULL, &stolen, obj_rank_by_stolen);
241 seq_puts(m, "Stolen:\n");
242 while (!list_empty(&stolen)) {
243 obj = list_first_entry(&stolen, typeof(*obj), obj_exec_link);
244 seq_puts(m, " ");
245 describe_obj(m, obj);
246 seq_putc(m, '\n');
247 list_del_init(&obj->obj_exec_link);
248 }
249 mutex_unlock(&dev->struct_mutex);
250
251 seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
252 count, total_obj_size, total_gtt_size);
253 return 0;
254 }
255
256 #define count_objects(list, member) do { \
257 list_for_each_entry(obj, list, member) { \
258 size += i915_gem_obj_ggtt_size(obj); \
259 ++count; \
260 if (obj->map_and_fenceable) { \
261 mappable_size += i915_gem_obj_ggtt_size(obj); \
262 ++mappable_count; \
263 } \
264 } \
265 } while (0)
266
267 struct file_stats {
268 int count;
269 size_t total, active, inactive, unbound;
270 };
271
272 static int per_file_stats(int id, void *ptr, void *data)
273 {
274 struct drm_i915_gem_object *obj = ptr;
275 struct file_stats *stats = data;
276
277 stats->count++;
278 stats->total += obj->base.size;
279
280 if (i915_gem_obj_ggtt_bound(obj)) {
281 if (!list_empty(&obj->ring_list))
282 stats->active += obj->base.size;
283 else
284 stats->inactive += obj->base.size;
285 } else {
286 if (!list_empty(&obj->global_list))
287 stats->unbound += obj->base.size;
288 }
289
290 return 0;
291 }
292
293 #define count_vmas(list, member) do { \
294 list_for_each_entry(vma, list, member) { \
295 size += i915_gem_obj_ggtt_size(vma->obj); \
296 ++count; \
297 if (vma->obj->map_and_fenceable) { \
298 mappable_size += i915_gem_obj_ggtt_size(vma->obj); \
299 ++mappable_count; \
300 } \
301 } \
302 } while (0)
303
304 static int i915_gem_object_info(struct seq_file *m, void* data)
305 {
306 struct drm_info_node *node = (struct drm_info_node *) m->private;
307 struct drm_device *dev = node->minor->dev;
308 struct drm_i915_private *dev_priv = dev->dev_private;
309 u32 count, mappable_count, purgeable_count;
310 size_t size, mappable_size, purgeable_size;
311 struct drm_i915_gem_object *obj;
312 struct i915_address_space *vm = &dev_priv->gtt.base;
313 struct drm_file *file;
314 struct i915_vma *vma;
315 int ret;
316
317 ret = mutex_lock_interruptible(&dev->struct_mutex);
318 if (ret)
319 return ret;
320
321 seq_printf(m, "%u objects, %zu bytes\n",
322 dev_priv->mm.object_count,
323 dev_priv->mm.object_memory);
324
325 size = count = mappable_size = mappable_count = 0;
326 count_objects(&dev_priv->mm.bound_list, global_list);
327 seq_printf(m, "%u [%u] objects, %zu [%zu] bytes in gtt\n",
328 count, mappable_count, size, mappable_size);
329
330 size = count = mappable_size = mappable_count = 0;
331 count_vmas(&vm->active_list, mm_list);
332 seq_printf(m, " %u [%u] active objects, %zu [%zu] bytes\n",
333 count, mappable_count, size, mappable_size);
334
335 size = count = mappable_size = mappable_count = 0;
336 count_vmas(&vm->inactive_list, mm_list);
337 seq_printf(m, " %u [%u] inactive objects, %zu [%zu] bytes\n",
338 count, mappable_count, size, mappable_size);
339
340 size = count = purgeable_size = purgeable_count = 0;
341 list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) {
342 size += obj->base.size, ++count;
343 if (obj->madv == I915_MADV_DONTNEED)
344 purgeable_size += obj->base.size, ++purgeable_count;
345 }
346 seq_printf(m, "%u unbound objects, %zu bytes\n", count, size);
347
348 size = count = mappable_size = mappable_count = 0;
349 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
350 if (obj->fault_mappable) {
351 size += i915_gem_obj_ggtt_size(obj);
352 ++count;
353 }
354 if (obj->pin_mappable) {
355 mappable_size += i915_gem_obj_ggtt_size(obj);
356 ++mappable_count;
357 }
358 if (obj->madv == I915_MADV_DONTNEED) {
359 purgeable_size += obj->base.size;
360 ++purgeable_count;
361 }
362 }
363 seq_printf(m, "%u purgeable objects, %zu bytes\n",
364 purgeable_count, purgeable_size);
365 seq_printf(m, "%u pinned mappable objects, %zu bytes\n",
366 mappable_count, mappable_size);
367 seq_printf(m, "%u fault mappable objects, %zu bytes\n",
368 count, size);
369
370 seq_printf(m, "%zu [%lu] gtt total\n",
371 dev_priv->gtt.base.total,
372 dev_priv->gtt.mappable_end - dev_priv->gtt.base.start);
373
374 seq_putc(m, '\n');
375 list_for_each_entry_reverse(file, &dev->filelist, lhead) {
376 struct file_stats stats;
377
378 memset(&stats, 0, sizeof(stats));
379 idr_for_each(&file->object_idr, per_file_stats, &stats);
380 seq_printf(m, "%s: %u objects, %zu bytes (%zu active, %zu inactive, %zu unbound)\n",
381 get_pid_task(file->pid, PIDTYPE_PID)->comm,
382 stats.count,
383 stats.total,
384 stats.active,
385 stats.inactive,
386 stats.unbound);
387 }
388
389 mutex_unlock(&dev->struct_mutex);
390
391 return 0;
392 }
393
394 static int i915_gem_gtt_info(struct seq_file *m, void *data)
395 {
396 struct drm_info_node *node = (struct drm_info_node *) m->private;
397 struct drm_device *dev = node->minor->dev;
398 uintptr_t list = (uintptr_t) node->info_ent->data;
399 struct drm_i915_private *dev_priv = dev->dev_private;
400 struct drm_i915_gem_object *obj;
401 size_t total_obj_size, total_gtt_size;
402 int count, ret;
403
404 ret = mutex_lock_interruptible(&dev->struct_mutex);
405 if (ret)
406 return ret;
407
408 total_obj_size = total_gtt_size = count = 0;
409 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
410 if (list == PINNED_LIST && obj->pin_count == 0)
411 continue;
412
413 seq_puts(m, " ");
414 describe_obj(m, obj);
415 seq_putc(m, '\n');
416 total_obj_size += obj->base.size;
417 total_gtt_size += i915_gem_obj_ggtt_size(obj);
418 count++;
419 }
420
421 mutex_unlock(&dev->struct_mutex);
422
423 seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
424 count, total_obj_size, total_gtt_size);
425
426 return 0;
427 }
428
429 static int i915_gem_pageflip_info(struct seq_file *m, void *data)
430 {
431 struct drm_info_node *node = (struct drm_info_node *) m->private;
432 struct drm_device *dev = node->minor->dev;
433 unsigned long flags;
434 struct intel_crtc *crtc;
435
436 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
437 const char pipe = pipe_name(crtc->pipe);
438 const char plane = plane_name(crtc->plane);
439 struct intel_unpin_work *work;
440
441 spin_lock_irqsave(&dev->event_lock, flags);
442 work = crtc->unpin_work;
443 if (work == NULL) {
444 seq_printf(m, "No flip due on pipe %c (plane %c)\n",
445 pipe, plane);
446 } else {
447 if (atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
448 seq_printf(m, "Flip queued on pipe %c (plane %c)\n",
449 pipe, plane);
450 } else {
451 seq_printf(m, "Flip pending (waiting for vsync) on pipe %c (plane %c)\n",
452 pipe, plane);
453 }
454 if (work->enable_stall_check)
455 seq_puts(m, "Stall check enabled, ");
456 else
457 seq_puts(m, "Stall check waiting for page flip ioctl, ");
458 seq_printf(m, "%d prepares\n", atomic_read(&work->pending));
459
460 if (work->old_fb_obj) {
461 struct drm_i915_gem_object *obj = work->old_fb_obj;
462 if (obj)
463 seq_printf(m, "Old framebuffer gtt_offset 0x%08lx\n",
464 i915_gem_obj_ggtt_offset(obj));
465 }
466 if (work->pending_flip_obj) {
467 struct drm_i915_gem_object *obj = work->pending_flip_obj;
468 if (obj)
469 seq_printf(m, "New framebuffer gtt_offset 0x%08lx\n",
470 i915_gem_obj_ggtt_offset(obj));
471 }
472 }
473 spin_unlock_irqrestore(&dev->event_lock, flags);
474 }
475
476 return 0;
477 }
478
479 static int i915_gem_request_info(struct seq_file *m, void *data)
480 {
481 struct drm_info_node *node = (struct drm_info_node *) m->private;
482 struct drm_device *dev = node->minor->dev;
483 drm_i915_private_t *dev_priv = dev->dev_private;
484 struct intel_ring_buffer *ring;
485 struct drm_i915_gem_request *gem_request;
486 int ret, count, i;
487
488 ret = mutex_lock_interruptible(&dev->struct_mutex);
489 if (ret)
490 return ret;
491
492 count = 0;
493 for_each_ring(ring, dev_priv, i) {
494 if (list_empty(&ring->request_list))
495 continue;
496
497 seq_printf(m, "%s requests:\n", ring->name);
498 list_for_each_entry(gem_request,
499 &ring->request_list,
500 list) {
501 seq_printf(m, " %d @ %d\n",
502 gem_request->seqno,
503 (int) (jiffies - gem_request->emitted_jiffies));
504 }
505 count++;
506 }
507 mutex_unlock(&dev->struct_mutex);
508
509 if (count == 0)
510 seq_puts(m, "No requests\n");
511
512 return 0;
513 }
514
515 static void i915_ring_seqno_info(struct seq_file *m,
516 struct intel_ring_buffer *ring)
517 {
518 if (ring->get_seqno) {
519 seq_printf(m, "Current sequence (%s): %u\n",
520 ring->name, ring->get_seqno(ring, false));
521 }
522 }
523
524 static int i915_gem_seqno_info(struct seq_file *m, void *data)
525 {
526 struct drm_info_node *node = (struct drm_info_node *) m->private;
527 struct drm_device *dev = node->minor->dev;
528 drm_i915_private_t *dev_priv = dev->dev_private;
529 struct intel_ring_buffer *ring;
530 int ret, i;
531
532 ret = mutex_lock_interruptible(&dev->struct_mutex);
533 if (ret)
534 return ret;
535
536 for_each_ring(ring, dev_priv, i)
537 i915_ring_seqno_info(m, ring);
538
539 mutex_unlock(&dev->struct_mutex);
540
541 return 0;
542 }
543
544
545 static int i915_interrupt_info(struct seq_file *m, void *data)
546 {
547 struct drm_info_node *node = (struct drm_info_node *) m->private;
548 struct drm_device *dev = node->minor->dev;
549 drm_i915_private_t *dev_priv = dev->dev_private;
550 struct intel_ring_buffer *ring;
551 int ret, i, pipe;
552
553 ret = mutex_lock_interruptible(&dev->struct_mutex);
554 if (ret)
555 return ret;
556
557 if (IS_VALLEYVIEW(dev)) {
558 seq_printf(m, "Display IER:\t%08x\n",
559 I915_READ(VLV_IER));
560 seq_printf(m, "Display IIR:\t%08x\n",
561 I915_READ(VLV_IIR));
562 seq_printf(m, "Display IIR_RW:\t%08x\n",
563 I915_READ(VLV_IIR_RW));
564 seq_printf(m, "Display IMR:\t%08x\n",
565 I915_READ(VLV_IMR));
566 for_each_pipe(pipe)
567 seq_printf(m, "Pipe %c stat:\t%08x\n",
568 pipe_name(pipe),
569 I915_READ(PIPESTAT(pipe)));
570
571 seq_printf(m, "Master IER:\t%08x\n",
572 I915_READ(VLV_MASTER_IER));
573
574 seq_printf(m, "Render IER:\t%08x\n",
575 I915_READ(GTIER));
576 seq_printf(m, "Render IIR:\t%08x\n",
577 I915_READ(GTIIR));
578 seq_printf(m, "Render IMR:\t%08x\n",
579 I915_READ(GTIMR));
580
581 seq_printf(m, "PM IER:\t\t%08x\n",
582 I915_READ(GEN6_PMIER));
583 seq_printf(m, "PM IIR:\t\t%08x\n",
584 I915_READ(GEN6_PMIIR));
585 seq_printf(m, "PM IMR:\t\t%08x\n",
586 I915_READ(GEN6_PMIMR));
587
588 seq_printf(m, "Port hotplug:\t%08x\n",
589 I915_READ(PORT_HOTPLUG_EN));
590 seq_printf(m, "DPFLIPSTAT:\t%08x\n",
591 I915_READ(VLV_DPFLIPSTAT));
592 seq_printf(m, "DPINVGTT:\t%08x\n",
593 I915_READ(DPINVGTT));
594
595 } else if (!HAS_PCH_SPLIT(dev)) {
596 seq_printf(m, "Interrupt enable: %08x\n",
597 I915_READ(IER));
598 seq_printf(m, "Interrupt identity: %08x\n",
599 I915_READ(IIR));
600 seq_printf(m, "Interrupt mask: %08x\n",
601 I915_READ(IMR));
602 for_each_pipe(pipe)
603 seq_printf(m, "Pipe %c stat: %08x\n",
604 pipe_name(pipe),
605 I915_READ(PIPESTAT(pipe)));
606 } else {
607 seq_printf(m, "North Display Interrupt enable: %08x\n",
608 I915_READ(DEIER));
609 seq_printf(m, "North Display Interrupt identity: %08x\n",
610 I915_READ(DEIIR));
611 seq_printf(m, "North Display Interrupt mask: %08x\n",
612 I915_READ(DEIMR));
613 seq_printf(m, "South Display Interrupt enable: %08x\n",
614 I915_READ(SDEIER));
615 seq_printf(m, "South Display Interrupt identity: %08x\n",
616 I915_READ(SDEIIR));
617 seq_printf(m, "South Display Interrupt mask: %08x\n",
618 I915_READ(SDEIMR));
619 seq_printf(m, "Graphics Interrupt enable: %08x\n",
620 I915_READ(GTIER));
621 seq_printf(m, "Graphics Interrupt identity: %08x\n",
622 I915_READ(GTIIR));
623 seq_printf(m, "Graphics Interrupt mask: %08x\n",
624 I915_READ(GTIMR));
625 }
626 seq_printf(m, "Interrupts received: %d\n",
627 atomic_read(&dev_priv->irq_received));
628 for_each_ring(ring, dev_priv, i) {
629 if (IS_GEN6(dev) || IS_GEN7(dev)) {
630 seq_printf(m,
631 "Graphics Interrupt mask (%s): %08x\n",
632 ring->name, I915_READ_IMR(ring));
633 }
634 i915_ring_seqno_info(m, ring);
635 }
636 mutex_unlock(&dev->struct_mutex);
637
638 return 0;
639 }
640
641 static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
642 {
643 struct drm_info_node *node = (struct drm_info_node *) m->private;
644 struct drm_device *dev = node->minor->dev;
645 drm_i915_private_t *dev_priv = dev->dev_private;
646 int i, ret;
647
648 ret = mutex_lock_interruptible(&dev->struct_mutex);
649 if (ret)
650 return ret;
651
652 seq_printf(m, "Reserved fences = %d\n", dev_priv->fence_reg_start);
653 seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
654 for (i = 0; i < dev_priv->num_fence_regs; i++) {
655 struct drm_i915_gem_object *obj = dev_priv->fence_regs[i].obj;
656
657 seq_printf(m, "Fence %d, pin count = %d, object = ",
658 i, dev_priv->fence_regs[i].pin_count);
659 if (obj == NULL)
660 seq_puts(m, "unused");
661 else
662 describe_obj(m, obj);
663 seq_putc(m, '\n');
664 }
665
666 mutex_unlock(&dev->struct_mutex);
667 return 0;
668 }
669
670 static int i915_hws_info(struct seq_file *m, void *data)
671 {
672 struct drm_info_node *node = (struct drm_info_node *) m->private;
673 struct drm_device *dev = node->minor->dev;
674 drm_i915_private_t *dev_priv = dev->dev_private;
675 struct intel_ring_buffer *ring;
676 const u32 *hws;
677 int i;
678
679 ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
680 hws = ring->status_page.page_addr;
681 if (hws == NULL)
682 return 0;
683
684 for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
685 seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
686 i * 4,
687 hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
688 }
689 return 0;
690 }
691
692 static ssize_t
693 i915_error_state_write(struct file *filp,
694 const char __user *ubuf,
695 size_t cnt,
696 loff_t *ppos)
697 {
698 struct i915_error_state_file_priv *error_priv = filp->private_data;
699 struct drm_device *dev = error_priv->dev;
700 int ret;
701
702 DRM_DEBUG_DRIVER("Resetting error state\n");
703
704 ret = mutex_lock_interruptible(&dev->struct_mutex);
705 if (ret)
706 return ret;
707
708 i915_destroy_error_state(dev);
709 mutex_unlock(&dev->struct_mutex);
710
711 return cnt;
712 }
713
714 static int i915_error_state_open(struct inode *inode, struct file *file)
715 {
716 struct drm_device *dev = inode->i_private;
717 struct i915_error_state_file_priv *error_priv;
718
719 error_priv = kzalloc(sizeof(*error_priv), GFP_KERNEL);
720 if (!error_priv)
721 return -ENOMEM;
722
723 error_priv->dev = dev;
724
725 i915_error_state_get(dev, error_priv);
726
727 file->private_data = error_priv;
728
729 return 0;
730 }
731
732 static int i915_error_state_release(struct inode *inode, struct file *file)
733 {
734 struct i915_error_state_file_priv *error_priv = file->private_data;
735
736 i915_error_state_put(error_priv);
737 kfree(error_priv);
738
739 return 0;
740 }
741
742 static ssize_t i915_error_state_read(struct file *file, char __user *userbuf,
743 size_t count, loff_t *pos)
744 {
745 struct i915_error_state_file_priv *error_priv = file->private_data;
746 struct drm_i915_error_state_buf error_str;
747 loff_t tmp_pos = 0;
748 ssize_t ret_count = 0;
749 int ret;
750
751 ret = i915_error_state_buf_init(&error_str, count, *pos);
752 if (ret)
753 return ret;
754
755 ret = i915_error_state_to_str(&error_str, error_priv);
756 if (ret)
757 goto out;
758
759 ret_count = simple_read_from_buffer(userbuf, count, &tmp_pos,
760 error_str.buf,
761 error_str.bytes);
762
763 if (ret_count < 0)
764 ret = ret_count;
765 else
766 *pos = error_str.start + ret_count;
767 out:
768 i915_error_state_buf_release(&error_str);
769 return ret ?: ret_count;
770 }
771
772 static const struct file_operations i915_error_state_fops = {
773 .owner = THIS_MODULE,
774 .open = i915_error_state_open,
775 .read = i915_error_state_read,
776 .write = i915_error_state_write,
777 .llseek = default_llseek,
778 .release = i915_error_state_release,
779 };
780
781 static int
782 i915_next_seqno_get(void *data, u64 *val)
783 {
784 struct drm_device *dev = data;
785 drm_i915_private_t *dev_priv = dev->dev_private;
786 int ret;
787
788 ret = mutex_lock_interruptible(&dev->struct_mutex);
789 if (ret)
790 return ret;
791
792 *val = dev_priv->next_seqno;
793 mutex_unlock(&dev->struct_mutex);
794
795 return 0;
796 }
797
798 static int
799 i915_next_seqno_set(void *data, u64 val)
800 {
801 struct drm_device *dev = data;
802 int ret;
803
804 ret = mutex_lock_interruptible(&dev->struct_mutex);
805 if (ret)
806 return ret;
807
808 ret = i915_gem_set_seqno(dev, val);
809 mutex_unlock(&dev->struct_mutex);
810
811 return ret;
812 }
813
814 DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops,
815 i915_next_seqno_get, i915_next_seqno_set,
816 "0x%llx\n");
817
818 static int i915_rstdby_delays(struct seq_file *m, void *unused)
819 {
820 struct drm_info_node *node = (struct drm_info_node *) m->private;
821 struct drm_device *dev = node->minor->dev;
822 drm_i915_private_t *dev_priv = dev->dev_private;
823 u16 crstanddelay;
824 int ret;
825
826 ret = mutex_lock_interruptible(&dev->struct_mutex);
827 if (ret)
828 return ret;
829
830 crstanddelay = I915_READ16(CRSTANDVID);
831
832 mutex_unlock(&dev->struct_mutex);
833
834 seq_printf(m, "w/ctx: %d, w/o ctx: %d\n", (crstanddelay >> 8) & 0x3f, (crstanddelay & 0x3f));
835
836 return 0;
837 }
838
839 static int i915_cur_delayinfo(struct seq_file *m, void *unused)
840 {
841 struct drm_info_node *node = (struct drm_info_node *) m->private;
842 struct drm_device *dev = node->minor->dev;
843 drm_i915_private_t *dev_priv = dev->dev_private;
844 int ret;
845
846 if (IS_GEN5(dev)) {
847 u16 rgvswctl = I915_READ16(MEMSWCTL);
848 u16 rgvstat = I915_READ16(MEMSTAT_ILK);
849
850 seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
851 seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
852 seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
853 MEMSTAT_VID_SHIFT);
854 seq_printf(m, "Current P-state: %d\n",
855 (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
856 } else if ((IS_GEN6(dev) || IS_GEN7(dev)) && !IS_VALLEYVIEW(dev)) {
857 u32 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
858 u32 rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
859 u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
860 u32 rpstat, cagf, reqf;
861 u32 rpupei, rpcurup, rpprevup;
862 u32 rpdownei, rpcurdown, rpprevdown;
863 int max_freq;
864
865 /* RPSTAT1 is in the GT power well */
866 ret = mutex_lock_interruptible(&dev->struct_mutex);
867 if (ret)
868 return ret;
869
870 gen6_gt_force_wake_get(dev_priv);
871
872 reqf = I915_READ(GEN6_RPNSWREQ);
873 reqf &= ~GEN6_TURBO_DISABLE;
874 if (IS_HASWELL(dev))
875 reqf >>= 24;
876 else
877 reqf >>= 25;
878 reqf *= GT_FREQUENCY_MULTIPLIER;
879
880 rpstat = I915_READ(GEN6_RPSTAT1);
881 rpupei = I915_READ(GEN6_RP_CUR_UP_EI);
882 rpcurup = I915_READ(GEN6_RP_CUR_UP);
883 rpprevup = I915_READ(GEN6_RP_PREV_UP);
884 rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI);
885 rpcurdown = I915_READ(GEN6_RP_CUR_DOWN);
886 rpprevdown = I915_READ(GEN6_RP_PREV_DOWN);
887 if (IS_HASWELL(dev))
888 cagf = (rpstat & HSW_CAGF_MASK) >> HSW_CAGF_SHIFT;
889 else
890 cagf = (rpstat & GEN6_CAGF_MASK) >> GEN6_CAGF_SHIFT;
891 cagf *= GT_FREQUENCY_MULTIPLIER;
892
893 gen6_gt_force_wake_put(dev_priv);
894 mutex_unlock(&dev->struct_mutex);
895
896 seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
897 seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
898 seq_printf(m, "Render p-state ratio: %d\n",
899 (gt_perf_status & 0xff00) >> 8);
900 seq_printf(m, "Render p-state VID: %d\n",
901 gt_perf_status & 0xff);
902 seq_printf(m, "Render p-state limit: %d\n",
903 rp_state_limits & 0xff);
904 seq_printf(m, "RPNSWREQ: %dMHz\n", reqf);
905 seq_printf(m, "CAGF: %dMHz\n", cagf);
906 seq_printf(m, "RP CUR UP EI: %dus\n", rpupei &
907 GEN6_CURICONT_MASK);
908 seq_printf(m, "RP CUR UP: %dus\n", rpcurup &
909 GEN6_CURBSYTAVG_MASK);
910 seq_printf(m, "RP PREV UP: %dus\n", rpprevup &
911 GEN6_CURBSYTAVG_MASK);
912 seq_printf(m, "RP CUR DOWN EI: %dus\n", rpdownei &
913 GEN6_CURIAVG_MASK);
914 seq_printf(m, "RP CUR DOWN: %dus\n", rpcurdown &
915 GEN6_CURBSYTAVG_MASK);
916 seq_printf(m, "RP PREV DOWN: %dus\n", rpprevdown &
917 GEN6_CURBSYTAVG_MASK);
918
919 max_freq = (rp_state_cap & 0xff0000) >> 16;
920 seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
921 max_freq * GT_FREQUENCY_MULTIPLIER);
922
923 max_freq = (rp_state_cap & 0xff00) >> 8;
924 seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
925 max_freq * GT_FREQUENCY_MULTIPLIER);
926
927 max_freq = rp_state_cap & 0xff;
928 seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
929 max_freq * GT_FREQUENCY_MULTIPLIER);
930
931 seq_printf(m, "Max overclocked frequency: %dMHz\n",
932 dev_priv->rps.hw_max * GT_FREQUENCY_MULTIPLIER);
933 } else if (IS_VALLEYVIEW(dev)) {
934 u32 freq_sts, val;
935
936 mutex_lock(&dev_priv->rps.hw_lock);
937 freq_sts = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
938 seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
939 seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
940
941 val = vlv_punit_read(dev_priv, PUNIT_FUSE_BUS1);
942 seq_printf(m, "max GPU freq: %d MHz\n",
943 vlv_gpu_freq(dev_priv->mem_freq, val));
944
945 val = vlv_punit_read(dev_priv, PUNIT_REG_GPU_LFM);
946 seq_printf(m, "min GPU freq: %d MHz\n",
947 vlv_gpu_freq(dev_priv->mem_freq, val));
948
949 seq_printf(m, "current GPU freq: %d MHz\n",
950 vlv_gpu_freq(dev_priv->mem_freq,
951 (freq_sts >> 8) & 0xff));
952 mutex_unlock(&dev_priv->rps.hw_lock);
953 } else {
954 seq_puts(m, "no P-state info available\n");
955 }
956
957 return 0;
958 }
959
960 static int i915_delayfreq_table(struct seq_file *m, void *unused)
961 {
962 struct drm_info_node *node = (struct drm_info_node *) m->private;
963 struct drm_device *dev = node->minor->dev;
964 drm_i915_private_t *dev_priv = dev->dev_private;
965 u32 delayfreq;
966 int ret, i;
967
968 ret = mutex_lock_interruptible(&dev->struct_mutex);
969 if (ret)
970 return ret;
971
972 for (i = 0; i < 16; i++) {
973 delayfreq = I915_READ(PXVFREQ_BASE + i * 4);
974 seq_printf(m, "P%02dVIDFREQ: 0x%08x (VID: %d)\n", i, delayfreq,
975 (delayfreq & PXVFREQ_PX_MASK) >> PXVFREQ_PX_SHIFT);
976 }
977
978 mutex_unlock(&dev->struct_mutex);
979
980 return 0;
981 }
982
983 static inline int MAP_TO_MV(int map)
984 {
985 return 1250 - (map * 25);
986 }
987
988 static int i915_inttoext_table(struct seq_file *m, void *unused)
989 {
990 struct drm_info_node *node = (struct drm_info_node *) m->private;
991 struct drm_device *dev = node->minor->dev;
992 drm_i915_private_t *dev_priv = dev->dev_private;
993 u32 inttoext;
994 int ret, i;
995
996 ret = mutex_lock_interruptible(&dev->struct_mutex);
997 if (ret)
998 return ret;
999
1000 for (i = 1; i <= 32; i++) {
1001 inttoext = I915_READ(INTTOEXT_BASE_ILK + i * 4);
1002 seq_printf(m, "INTTOEXT%02d: 0x%08x\n", i, inttoext);
1003 }
1004
1005 mutex_unlock(&dev->struct_mutex);
1006
1007 return 0;
1008 }
1009
1010 static int ironlake_drpc_info(struct seq_file *m)
1011 {
1012 struct drm_info_node *node = (struct drm_info_node *) m->private;
1013 struct drm_device *dev = node->minor->dev;
1014 drm_i915_private_t *dev_priv = dev->dev_private;
1015 u32 rgvmodectl, rstdbyctl;
1016 u16 crstandvid;
1017 int ret;
1018
1019 ret = mutex_lock_interruptible(&dev->struct_mutex);
1020 if (ret)
1021 return ret;
1022
1023 rgvmodectl = I915_READ(MEMMODECTL);
1024 rstdbyctl = I915_READ(RSTDBYCTL);
1025 crstandvid = I915_READ16(CRSTANDVID);
1026
1027 mutex_unlock(&dev->struct_mutex);
1028
1029 seq_printf(m, "HD boost: %s\n", (rgvmodectl & MEMMODE_BOOST_EN) ?
1030 "yes" : "no");
1031 seq_printf(m, "Boost freq: %d\n",
1032 (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
1033 MEMMODE_BOOST_FREQ_SHIFT);
1034 seq_printf(m, "HW control enabled: %s\n",
1035 rgvmodectl & MEMMODE_HWIDLE_EN ? "yes" : "no");
1036 seq_printf(m, "SW control enabled: %s\n",
1037 rgvmodectl & MEMMODE_SWMODE_EN ? "yes" : "no");
1038 seq_printf(m, "Gated voltage change: %s\n",
1039 rgvmodectl & MEMMODE_RCLK_GATE ? "yes" : "no");
1040 seq_printf(m, "Starting frequency: P%d\n",
1041 (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
1042 seq_printf(m, "Max P-state: P%d\n",
1043 (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
1044 seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
1045 seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
1046 seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
1047 seq_printf(m, "Render standby enabled: %s\n",
1048 (rstdbyctl & RCX_SW_EXIT) ? "no" : "yes");
1049 seq_puts(m, "Current RS state: ");
1050 switch (rstdbyctl & RSX_STATUS_MASK) {
1051 case RSX_STATUS_ON:
1052 seq_puts(m, "on\n");
1053 break;
1054 case RSX_STATUS_RC1:
1055 seq_puts(m, "RC1\n");
1056 break;
1057 case RSX_STATUS_RC1E:
1058 seq_puts(m, "RC1E\n");
1059 break;
1060 case RSX_STATUS_RS1:
1061 seq_puts(m, "RS1\n");
1062 break;
1063 case RSX_STATUS_RS2:
1064 seq_puts(m, "RS2 (RC6)\n");
1065 break;
1066 case RSX_STATUS_RS3:
1067 seq_puts(m, "RC3 (RC6+)\n");
1068 break;
1069 default:
1070 seq_puts(m, "unknown\n");
1071 break;
1072 }
1073
1074 return 0;
1075 }
1076
1077 static int gen6_drpc_info(struct seq_file *m)
1078 {
1079
1080 struct drm_info_node *node = (struct drm_info_node *) m->private;
1081 struct drm_device *dev = node->minor->dev;
1082 struct drm_i915_private *dev_priv = dev->dev_private;
1083 u32 rpmodectl1, gt_core_status, rcctl1, rc6vids = 0;
1084 unsigned forcewake_count;
1085 int count = 0, ret;
1086
1087 ret = mutex_lock_interruptible(&dev->struct_mutex);
1088 if (ret)
1089 return ret;
1090
1091 spin_lock_irq(&dev_priv->uncore.lock);
1092 forcewake_count = dev_priv->uncore.forcewake_count;
1093 spin_unlock_irq(&dev_priv->uncore.lock);
1094
1095 if (forcewake_count) {
1096 seq_puts(m, "RC information inaccurate because somebody "
1097 "holds a forcewake reference \n");
1098 } else {
1099 /* NB: we cannot use forcewake, else we read the wrong values */
1100 while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
1101 udelay(10);
1102 seq_printf(m, "RC information accurate: %s\n", yesno(count < 51));
1103 }
1104
1105 gt_core_status = readl(dev_priv->regs + GEN6_GT_CORE_STATUS);
1106 trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true);
1107
1108 rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
1109 rcctl1 = I915_READ(GEN6_RC_CONTROL);
1110 mutex_unlock(&dev->struct_mutex);
1111 mutex_lock(&dev_priv->rps.hw_lock);
1112 sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, &rc6vids);
1113 mutex_unlock(&dev_priv->rps.hw_lock);
1114
1115 seq_printf(m, "Video Turbo Mode: %s\n",
1116 yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
1117 seq_printf(m, "HW control enabled: %s\n",
1118 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1119 seq_printf(m, "SW control enabled: %s\n",
1120 yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
1121 GEN6_RP_MEDIA_SW_MODE));
1122 seq_printf(m, "RC1e Enabled: %s\n",
1123 yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
1124 seq_printf(m, "RC6 Enabled: %s\n",
1125 yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
1126 seq_printf(m, "Deep RC6 Enabled: %s\n",
1127 yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
1128 seq_printf(m, "Deepest RC6 Enabled: %s\n",
1129 yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
1130 seq_puts(m, "Current RC state: ");
1131 switch (gt_core_status & GEN6_RCn_MASK) {
1132 case GEN6_RC0:
1133 if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
1134 seq_puts(m, "Core Power Down\n");
1135 else
1136 seq_puts(m, "on\n");
1137 break;
1138 case GEN6_RC3:
1139 seq_puts(m, "RC3\n");
1140 break;
1141 case GEN6_RC6:
1142 seq_puts(m, "RC6\n");
1143 break;
1144 case GEN6_RC7:
1145 seq_puts(m, "RC7\n");
1146 break;
1147 default:
1148 seq_puts(m, "Unknown\n");
1149 break;
1150 }
1151
1152 seq_printf(m, "Core Power Down: %s\n",
1153 yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
1154
1155 /* Not exactly sure what this is */
1156 seq_printf(m, "RC6 \"Locked to RPn\" residency since boot: %u\n",
1157 I915_READ(GEN6_GT_GFX_RC6_LOCKED));
1158 seq_printf(m, "RC6 residency since boot: %u\n",
1159 I915_READ(GEN6_GT_GFX_RC6));
1160 seq_printf(m, "RC6+ residency since boot: %u\n",
1161 I915_READ(GEN6_GT_GFX_RC6p));
1162 seq_printf(m, "RC6++ residency since boot: %u\n",
1163 I915_READ(GEN6_GT_GFX_RC6pp));
1164
1165 seq_printf(m, "RC6 voltage: %dmV\n",
1166 GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
1167 seq_printf(m, "RC6+ voltage: %dmV\n",
1168 GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
1169 seq_printf(m, "RC6++ voltage: %dmV\n",
1170 GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
1171 return 0;
1172 }
1173
1174 static int i915_drpc_info(struct seq_file *m, void *unused)
1175 {
1176 struct drm_info_node *node = (struct drm_info_node *) m->private;
1177 struct drm_device *dev = node->minor->dev;
1178
1179 if (IS_GEN6(dev) || IS_GEN7(dev))
1180 return gen6_drpc_info(m);
1181 else
1182 return ironlake_drpc_info(m);
1183 }
1184
1185 static int i915_fbc_status(struct seq_file *m, void *unused)
1186 {
1187 struct drm_info_node *node = (struct drm_info_node *) m->private;
1188 struct drm_device *dev = node->minor->dev;
1189 drm_i915_private_t *dev_priv = dev->dev_private;
1190
1191 if (!I915_HAS_FBC(dev)) {
1192 seq_puts(m, "FBC unsupported on this chipset\n");
1193 return 0;
1194 }
1195
1196 if (intel_fbc_enabled(dev)) {
1197 seq_puts(m, "FBC enabled\n");
1198 } else {
1199 seq_puts(m, "FBC disabled: ");
1200 switch (dev_priv->fbc.no_fbc_reason) {
1201 case FBC_OK:
1202 seq_puts(m, "FBC actived, but currently disabled in hardware");
1203 break;
1204 case FBC_UNSUPPORTED:
1205 seq_puts(m, "unsupported by this chipset");
1206 break;
1207 case FBC_NO_OUTPUT:
1208 seq_puts(m, "no outputs");
1209 break;
1210 case FBC_STOLEN_TOO_SMALL:
1211 seq_puts(m, "not enough stolen memory");
1212 break;
1213 case FBC_UNSUPPORTED_MODE:
1214 seq_puts(m, "mode not supported");
1215 break;
1216 case FBC_MODE_TOO_LARGE:
1217 seq_puts(m, "mode too large");
1218 break;
1219 case FBC_BAD_PLANE:
1220 seq_puts(m, "FBC unsupported on plane");
1221 break;
1222 case FBC_NOT_TILED:
1223 seq_puts(m, "scanout buffer not tiled");
1224 break;
1225 case FBC_MULTIPLE_PIPES:
1226 seq_puts(m, "multiple pipes are enabled");
1227 break;
1228 case FBC_MODULE_PARAM:
1229 seq_puts(m, "disabled per module param (default off)");
1230 break;
1231 case FBC_CHIP_DEFAULT:
1232 seq_puts(m, "disabled per chip default");
1233 break;
1234 default:
1235 seq_puts(m, "unknown reason");
1236 }
1237 seq_putc(m, '\n');
1238 }
1239 return 0;
1240 }
1241
1242 static int i915_ips_status(struct seq_file *m, void *unused)
1243 {
1244 struct drm_info_node *node = (struct drm_info_node *) m->private;
1245 struct drm_device *dev = node->minor->dev;
1246 struct drm_i915_private *dev_priv = dev->dev_private;
1247
1248 if (!HAS_IPS(dev)) {
1249 seq_puts(m, "not supported\n");
1250 return 0;
1251 }
1252
1253 if (I915_READ(IPS_CTL) & IPS_ENABLE)
1254 seq_puts(m, "enabled\n");
1255 else
1256 seq_puts(m, "disabled\n");
1257
1258 return 0;
1259 }
1260
1261 static int i915_sr_status(struct seq_file *m, void *unused)
1262 {
1263 struct drm_info_node *node = (struct drm_info_node *) m->private;
1264 struct drm_device *dev = node->minor->dev;
1265 drm_i915_private_t *dev_priv = dev->dev_private;
1266 bool sr_enabled = false;
1267
1268 if (HAS_PCH_SPLIT(dev))
1269 sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
1270 else if (IS_CRESTLINE(dev) || IS_I945G(dev) || IS_I945GM(dev))
1271 sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
1272 else if (IS_I915GM(dev))
1273 sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
1274 else if (IS_PINEVIEW(dev))
1275 sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
1276
1277 seq_printf(m, "self-refresh: %s\n",
1278 sr_enabled ? "enabled" : "disabled");
1279
1280 return 0;
1281 }
1282
1283 static int i915_emon_status(struct seq_file *m, void *unused)
1284 {
1285 struct drm_info_node *node = (struct drm_info_node *) m->private;
1286 struct drm_device *dev = node->minor->dev;
1287 drm_i915_private_t *dev_priv = dev->dev_private;
1288 unsigned long temp, chipset, gfx;
1289 int ret;
1290
1291 if (!IS_GEN5(dev))
1292 return -ENODEV;
1293
1294 ret = mutex_lock_interruptible(&dev->struct_mutex);
1295 if (ret)
1296 return ret;
1297
1298 temp = i915_mch_val(dev_priv);
1299 chipset = i915_chipset_val(dev_priv);
1300 gfx = i915_gfx_val(dev_priv);
1301 mutex_unlock(&dev->struct_mutex);
1302
1303 seq_printf(m, "GMCH temp: %ld\n", temp);
1304 seq_printf(m, "Chipset power: %ld\n", chipset);
1305 seq_printf(m, "GFX power: %ld\n", gfx);
1306 seq_printf(m, "Total power: %ld\n", chipset + gfx);
1307
1308 return 0;
1309 }
1310
1311 static int i915_ring_freq_table(struct seq_file *m, void *unused)
1312 {
1313 struct drm_info_node *node = (struct drm_info_node *) m->private;
1314 struct drm_device *dev = node->minor->dev;
1315 drm_i915_private_t *dev_priv = dev->dev_private;
1316 int ret;
1317 int gpu_freq, ia_freq;
1318
1319 if (!(IS_GEN6(dev) || IS_GEN7(dev))) {
1320 seq_puts(m, "unsupported on this chipset\n");
1321 return 0;
1322 }
1323
1324 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
1325 if (ret)
1326 return ret;
1327
1328 seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
1329
1330 for (gpu_freq = dev_priv->rps.min_delay;
1331 gpu_freq <= dev_priv->rps.max_delay;
1332 gpu_freq++) {
1333 ia_freq = gpu_freq;
1334 sandybridge_pcode_read(dev_priv,
1335 GEN6_PCODE_READ_MIN_FREQ_TABLE,
1336 &ia_freq);
1337 seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
1338 gpu_freq * GT_FREQUENCY_MULTIPLIER,
1339 ((ia_freq >> 0) & 0xff) * 100,
1340 ((ia_freq >> 8) & 0xff) * 100);
1341 }
1342
1343 mutex_unlock(&dev_priv->rps.hw_lock);
1344
1345 return 0;
1346 }
1347
1348 static int i915_gfxec(struct seq_file *m, void *unused)
1349 {
1350 struct drm_info_node *node = (struct drm_info_node *) m->private;
1351 struct drm_device *dev = node->minor->dev;
1352 drm_i915_private_t *dev_priv = dev->dev_private;
1353 int ret;
1354
1355 ret = mutex_lock_interruptible(&dev->struct_mutex);
1356 if (ret)
1357 return ret;
1358
1359 seq_printf(m, "GFXEC: %ld\n", (unsigned long)I915_READ(0x112f4));
1360
1361 mutex_unlock(&dev->struct_mutex);
1362
1363 return 0;
1364 }
1365
1366 static int i915_opregion(struct seq_file *m, void *unused)
1367 {
1368 struct drm_info_node *node = (struct drm_info_node *) m->private;
1369 struct drm_device *dev = node->minor->dev;
1370 drm_i915_private_t *dev_priv = dev->dev_private;
1371 struct intel_opregion *opregion = &dev_priv->opregion;
1372 void *data = kmalloc(OPREGION_SIZE, GFP_KERNEL);
1373 int ret;
1374
1375 if (data == NULL)
1376 return -ENOMEM;
1377
1378 ret = mutex_lock_interruptible(&dev->struct_mutex);
1379 if (ret)
1380 goto out;
1381
1382 if (opregion->header) {
1383 memcpy_fromio(data, opregion->header, OPREGION_SIZE);
1384 seq_write(m, data, OPREGION_SIZE);
1385 }
1386
1387 mutex_unlock(&dev->struct_mutex);
1388
1389 out:
1390 kfree(data);
1391 return 0;
1392 }
1393
1394 static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
1395 {
1396 struct drm_info_node *node = (struct drm_info_node *) m->private;
1397 struct drm_device *dev = node->minor->dev;
1398 drm_i915_private_t *dev_priv = dev->dev_private;
1399 struct intel_fbdev *ifbdev;
1400 struct intel_framebuffer *fb;
1401 int ret;
1402
1403 ret = mutex_lock_interruptible(&dev->mode_config.mutex);
1404 if (ret)
1405 return ret;
1406
1407 ifbdev = dev_priv->fbdev;
1408 fb = to_intel_framebuffer(ifbdev->helper.fb);
1409
1410 seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, refcount %d, obj ",
1411 fb->base.width,
1412 fb->base.height,
1413 fb->base.depth,
1414 fb->base.bits_per_pixel,
1415 atomic_read(&fb->base.refcount.refcount));
1416 describe_obj(m, fb->obj);
1417 seq_putc(m, '\n');
1418 mutex_unlock(&dev->mode_config.mutex);
1419
1420 mutex_lock(&dev->mode_config.fb_lock);
1421 list_for_each_entry(fb, &dev->mode_config.fb_list, base.head) {
1422 if (&fb->base == ifbdev->helper.fb)
1423 continue;
1424
1425 seq_printf(m, "user size: %d x %d, depth %d, %d bpp, refcount %d, obj ",
1426 fb->base.width,
1427 fb->base.height,
1428 fb->base.depth,
1429 fb->base.bits_per_pixel,
1430 atomic_read(&fb->base.refcount.refcount));
1431 describe_obj(m, fb->obj);
1432 seq_putc(m, '\n');
1433 }
1434 mutex_unlock(&dev->mode_config.fb_lock);
1435
1436 return 0;
1437 }
1438
1439 static int i915_context_status(struct seq_file *m, void *unused)
1440 {
1441 struct drm_info_node *node = (struct drm_info_node *) m->private;
1442 struct drm_device *dev = node->minor->dev;
1443 drm_i915_private_t *dev_priv = dev->dev_private;
1444 struct intel_ring_buffer *ring;
1445 int ret, i;
1446
1447 ret = mutex_lock_interruptible(&dev->mode_config.mutex);
1448 if (ret)
1449 return ret;
1450
1451 if (dev_priv->ips.pwrctx) {
1452 seq_puts(m, "power context ");
1453 describe_obj(m, dev_priv->ips.pwrctx);
1454 seq_putc(m, '\n');
1455 }
1456
1457 if (dev_priv->ips.renderctx) {
1458 seq_puts(m, "render context ");
1459 describe_obj(m, dev_priv->ips.renderctx);
1460 seq_putc(m, '\n');
1461 }
1462
1463 for_each_ring(ring, dev_priv, i) {
1464 if (ring->default_context) {
1465 seq_printf(m, "HW default context %s ring ", ring->name);
1466 describe_obj(m, ring->default_context->obj);
1467 seq_putc(m, '\n');
1468 }
1469 }
1470
1471 mutex_unlock(&dev->mode_config.mutex);
1472
1473 return 0;
1474 }
1475
1476 static int i915_gen6_forcewake_count_info(struct seq_file *m, void *data)
1477 {
1478 struct drm_info_node *node = (struct drm_info_node *) m->private;
1479 struct drm_device *dev = node->minor->dev;
1480 struct drm_i915_private *dev_priv = dev->dev_private;
1481 unsigned forcewake_count;
1482
1483 spin_lock_irq(&dev_priv->uncore.lock);
1484 forcewake_count = dev_priv->uncore.forcewake_count;
1485 spin_unlock_irq(&dev_priv->uncore.lock);
1486
1487 seq_printf(m, "forcewake count = %u\n", forcewake_count);
1488
1489 return 0;
1490 }
1491
1492 static const char *swizzle_string(unsigned swizzle)
1493 {
1494 switch (swizzle) {
1495 case I915_BIT_6_SWIZZLE_NONE:
1496 return "none";
1497 case I915_BIT_6_SWIZZLE_9:
1498 return "bit9";
1499 case I915_BIT_6_SWIZZLE_9_10:
1500 return "bit9/bit10";
1501 case I915_BIT_6_SWIZZLE_9_11:
1502 return "bit9/bit11";
1503 case I915_BIT_6_SWIZZLE_9_10_11:
1504 return "bit9/bit10/bit11";
1505 case I915_BIT_6_SWIZZLE_9_17:
1506 return "bit9/bit17";
1507 case I915_BIT_6_SWIZZLE_9_10_17:
1508 return "bit9/bit10/bit17";
1509 case I915_BIT_6_SWIZZLE_UNKNOWN:
1510 return "unknown";
1511 }
1512
1513 return "bug";
1514 }
1515
1516 static int i915_swizzle_info(struct seq_file *m, void *data)
1517 {
1518 struct drm_info_node *node = (struct drm_info_node *) m->private;
1519 struct drm_device *dev = node->minor->dev;
1520 struct drm_i915_private *dev_priv = dev->dev_private;
1521 int ret;
1522
1523 ret = mutex_lock_interruptible(&dev->struct_mutex);
1524 if (ret)
1525 return ret;
1526
1527 seq_printf(m, "bit6 swizzle for X-tiling = %s\n",
1528 swizzle_string(dev_priv->mm.bit_6_swizzle_x));
1529 seq_printf(m, "bit6 swizzle for Y-tiling = %s\n",
1530 swizzle_string(dev_priv->mm.bit_6_swizzle_y));
1531
1532 if (IS_GEN3(dev) || IS_GEN4(dev)) {
1533 seq_printf(m, "DDC = 0x%08x\n",
1534 I915_READ(DCC));
1535 seq_printf(m, "C0DRB3 = 0x%04x\n",
1536 I915_READ16(C0DRB3));
1537 seq_printf(m, "C1DRB3 = 0x%04x\n",
1538 I915_READ16(C1DRB3));
1539 } else if (IS_GEN6(dev) || IS_GEN7(dev)) {
1540 seq_printf(m, "MAD_DIMM_C0 = 0x%08x\n",
1541 I915_READ(MAD_DIMM_C0));
1542 seq_printf(m, "MAD_DIMM_C1 = 0x%08x\n",
1543 I915_READ(MAD_DIMM_C1));
1544 seq_printf(m, "MAD_DIMM_C2 = 0x%08x\n",
1545 I915_READ(MAD_DIMM_C2));
1546 seq_printf(m, "TILECTL = 0x%08x\n",
1547 I915_READ(TILECTL));
1548 seq_printf(m, "ARB_MODE = 0x%08x\n",
1549 I915_READ(ARB_MODE));
1550 seq_printf(m, "DISP_ARB_CTL = 0x%08x\n",
1551 I915_READ(DISP_ARB_CTL));
1552 }
1553 mutex_unlock(&dev->struct_mutex);
1554
1555 return 0;
1556 }
1557
1558 static int i915_ppgtt_info(struct seq_file *m, void *data)
1559 {
1560 struct drm_info_node *node = (struct drm_info_node *) m->private;
1561 struct drm_device *dev = node->minor->dev;
1562 struct drm_i915_private *dev_priv = dev->dev_private;
1563 struct intel_ring_buffer *ring;
1564 int i, ret;
1565
1566
1567 ret = mutex_lock_interruptible(&dev->struct_mutex);
1568 if (ret)
1569 return ret;
1570 if (INTEL_INFO(dev)->gen == 6)
1571 seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(GFX_MODE));
1572
1573 for_each_ring(ring, dev_priv, i) {
1574 seq_printf(m, "%s\n", ring->name);
1575 if (INTEL_INFO(dev)->gen == 7)
1576 seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(RING_MODE_GEN7(ring)));
1577 seq_printf(m, "PP_DIR_BASE: 0x%08x\n", I915_READ(RING_PP_DIR_BASE(ring)));
1578 seq_printf(m, "PP_DIR_BASE_READ: 0x%08x\n", I915_READ(RING_PP_DIR_BASE_READ(ring)));
1579 seq_printf(m, "PP_DIR_DCLV: 0x%08x\n", I915_READ(RING_PP_DIR_DCLV(ring)));
1580 }
1581 if (dev_priv->mm.aliasing_ppgtt) {
1582 struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
1583
1584 seq_puts(m, "aliasing PPGTT:\n");
1585 seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd_offset);
1586 }
1587 seq_printf(m, "ECOCHK: 0x%08x\n", I915_READ(GAM_ECOCHK));
1588 mutex_unlock(&dev->struct_mutex);
1589
1590 return 0;
1591 }
1592
1593 static int i915_dpio_info(struct seq_file *m, void *data)
1594 {
1595 struct drm_info_node *node = (struct drm_info_node *) m->private;
1596 struct drm_device *dev = node->minor->dev;
1597 struct drm_i915_private *dev_priv = dev->dev_private;
1598 int ret;
1599
1600
1601 if (!IS_VALLEYVIEW(dev)) {
1602 seq_puts(m, "unsupported\n");
1603 return 0;
1604 }
1605
1606 ret = mutex_lock_interruptible(&dev_priv->dpio_lock);
1607 if (ret)
1608 return ret;
1609
1610 seq_printf(m, "DPIO_CTL: 0x%08x\n", I915_READ(DPIO_CTL));
1611
1612 seq_printf(m, "DPIO_DIV_A: 0x%08x\n",
1613 vlv_dpio_read(dev_priv, _DPIO_DIV_A));
1614 seq_printf(m, "DPIO_DIV_B: 0x%08x\n",
1615 vlv_dpio_read(dev_priv, _DPIO_DIV_B));
1616
1617 seq_printf(m, "DPIO_REFSFR_A: 0x%08x\n",
1618 vlv_dpio_read(dev_priv, _DPIO_REFSFR_A));
1619 seq_printf(m, "DPIO_REFSFR_B: 0x%08x\n",
1620 vlv_dpio_read(dev_priv, _DPIO_REFSFR_B));
1621
1622 seq_printf(m, "DPIO_CORE_CLK_A: 0x%08x\n",
1623 vlv_dpio_read(dev_priv, _DPIO_CORE_CLK_A));
1624 seq_printf(m, "DPIO_CORE_CLK_B: 0x%08x\n",
1625 vlv_dpio_read(dev_priv, _DPIO_CORE_CLK_B));
1626
1627 seq_printf(m, "DPIO_LPF_COEFF_A: 0x%08x\n",
1628 vlv_dpio_read(dev_priv, _DPIO_LPF_COEFF_A));
1629 seq_printf(m, "DPIO_LPF_COEFF_B: 0x%08x\n",
1630 vlv_dpio_read(dev_priv, _DPIO_LPF_COEFF_B));
1631
1632 seq_printf(m, "DPIO_FASTCLK_DISABLE: 0x%08x\n",
1633 vlv_dpio_read(dev_priv, DPIO_FASTCLK_DISABLE));
1634
1635 mutex_unlock(&dev_priv->dpio_lock);
1636
1637 return 0;
1638 }
1639
1640 static int i915_llc(struct seq_file *m, void *data)
1641 {
1642 struct drm_info_node *node = (struct drm_info_node *) m->private;
1643 struct drm_device *dev = node->minor->dev;
1644 struct drm_i915_private *dev_priv = dev->dev_private;
1645
1646 /* Size calculation for LLC is a bit of a pain. Ignore for now. */
1647 seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(dev)));
1648 seq_printf(m, "eLLC: %zuMB\n", dev_priv->ellc_size);
1649
1650 return 0;
1651 }
1652
1653 static int i915_edp_psr_status(struct seq_file *m, void *data)
1654 {
1655 struct drm_info_node *node = m->private;
1656 struct drm_device *dev = node->minor->dev;
1657 struct drm_i915_private *dev_priv = dev->dev_private;
1658 u32 psrstat, psrperf;
1659
1660 if (!IS_HASWELL(dev)) {
1661 seq_puts(m, "PSR not supported on this platform\n");
1662 } else if (IS_HASWELL(dev) && I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE) {
1663 seq_puts(m, "PSR enabled\n");
1664 } else {
1665 seq_puts(m, "PSR disabled: ");
1666 switch (dev_priv->no_psr_reason) {
1667 case PSR_NO_SOURCE:
1668 seq_puts(m, "not supported on this platform");
1669 break;
1670 case PSR_NO_SINK:
1671 seq_puts(m, "not supported by panel");
1672 break;
1673 case PSR_MODULE_PARAM:
1674 seq_puts(m, "disabled by flag");
1675 break;
1676 case PSR_CRTC_NOT_ACTIVE:
1677 seq_puts(m, "crtc not active");
1678 break;
1679 case PSR_PWR_WELL_ENABLED:
1680 seq_puts(m, "power well enabled");
1681 break;
1682 case PSR_NOT_TILED:
1683 seq_puts(m, "not tiled");
1684 break;
1685 case PSR_SPRITE_ENABLED:
1686 seq_puts(m, "sprite enabled");
1687 break;
1688 case PSR_S3D_ENABLED:
1689 seq_puts(m, "stereo 3d enabled");
1690 break;
1691 case PSR_INTERLACED_ENABLED:
1692 seq_puts(m, "interlaced enabled");
1693 break;
1694 case PSR_HSW_NOT_DDIA:
1695 seq_puts(m, "HSW ties PSR to DDI A (eDP)");
1696 break;
1697 default:
1698 seq_puts(m, "unknown reason");
1699 }
1700 seq_puts(m, "\n");
1701 return 0;
1702 }
1703
1704 psrstat = I915_READ(EDP_PSR_STATUS_CTL);
1705
1706 seq_puts(m, "PSR Current State: ");
1707 switch (psrstat & EDP_PSR_STATUS_STATE_MASK) {
1708 case EDP_PSR_STATUS_STATE_IDLE:
1709 seq_puts(m, "Reset state\n");
1710 break;
1711 case EDP_PSR_STATUS_STATE_SRDONACK:
1712 seq_puts(m, "Wait for TG/Stream to send on frame of data after SRD conditions are met\n");
1713 break;
1714 case EDP_PSR_STATUS_STATE_SRDENT:
1715 seq_puts(m, "SRD entry\n");
1716 break;
1717 case EDP_PSR_STATUS_STATE_BUFOFF:
1718 seq_puts(m, "Wait for buffer turn off\n");
1719 break;
1720 case EDP_PSR_STATUS_STATE_BUFON:
1721 seq_puts(m, "Wait for buffer turn on\n");
1722 break;
1723 case EDP_PSR_STATUS_STATE_AUXACK:
1724 seq_puts(m, "Wait for AUX to acknowledge on SRD exit\n");
1725 break;
1726 case EDP_PSR_STATUS_STATE_SRDOFFACK:
1727 seq_puts(m, "Wait for TG/Stream to acknowledge the SRD VDM exit\n");
1728 break;
1729 default:
1730 seq_puts(m, "Unknown\n");
1731 break;
1732 }
1733
1734 seq_puts(m, "Link Status: ");
1735 switch (psrstat & EDP_PSR_STATUS_LINK_MASK) {
1736 case EDP_PSR_STATUS_LINK_FULL_OFF:
1737 seq_puts(m, "Link is fully off\n");
1738 break;
1739 case EDP_PSR_STATUS_LINK_FULL_ON:
1740 seq_puts(m, "Link is fully on\n");
1741 break;
1742 case EDP_PSR_STATUS_LINK_STANDBY:
1743 seq_puts(m, "Link is in standby\n");
1744 break;
1745 default:
1746 seq_puts(m, "Unknown\n");
1747 break;
1748 }
1749
1750 seq_printf(m, "PSR Entry Count: %u\n",
1751 psrstat >> EDP_PSR_STATUS_COUNT_SHIFT &
1752 EDP_PSR_STATUS_COUNT_MASK);
1753
1754 seq_printf(m, "Max Sleep Timer Counter: %u\n",
1755 psrstat >> EDP_PSR_STATUS_MAX_SLEEP_TIMER_SHIFT &
1756 EDP_PSR_STATUS_MAX_SLEEP_TIMER_MASK);
1757
1758 seq_printf(m, "Had AUX error: %s\n",
1759 yesno(psrstat & EDP_PSR_STATUS_AUX_ERROR));
1760
1761 seq_printf(m, "Sending AUX: %s\n",
1762 yesno(psrstat & EDP_PSR_STATUS_AUX_SENDING));
1763
1764 seq_printf(m, "Sending Idle: %s\n",
1765 yesno(psrstat & EDP_PSR_STATUS_SENDING_IDLE));
1766
1767 seq_printf(m, "Sending TP2 TP3: %s\n",
1768 yesno(psrstat & EDP_PSR_STATUS_SENDING_TP2_TP3));
1769
1770 seq_printf(m, "Sending TP1: %s\n",
1771 yesno(psrstat & EDP_PSR_STATUS_SENDING_TP1));
1772
1773 seq_printf(m, "Idle Count: %u\n",
1774 psrstat & EDP_PSR_STATUS_IDLE_MASK);
1775
1776 psrperf = (I915_READ(EDP_PSR_PERF_CNT)) & EDP_PSR_PERF_CNT_MASK;
1777 seq_printf(m, "Performance Counter: %u\n", psrperf);
1778
1779 return 0;
1780 }
1781
1782 static int i915_energy_uJ(struct seq_file *m, void *data)
1783 {
1784 struct drm_info_node *node = m->private;
1785 struct drm_device *dev = node->minor->dev;
1786 struct drm_i915_private *dev_priv = dev->dev_private;
1787 u64 power;
1788 u32 units;
1789
1790 if (INTEL_INFO(dev)->gen < 6)
1791 return -ENODEV;
1792
1793 rdmsrl(MSR_RAPL_POWER_UNIT, power);
1794 power = (power & 0x1f00) >> 8;
1795 units = 1000000 / (1 << power); /* convert to uJ */
1796 power = I915_READ(MCH_SECP_NRG_STTS);
1797 power *= units;
1798
1799 seq_printf(m, "%llu", (long long unsigned)power);
1800
1801 return 0;
1802 }
1803
1804 static int i915_pc8_status(struct seq_file *m, void *unused)
1805 {
1806 struct drm_info_node *node = (struct drm_info_node *) m->private;
1807 struct drm_device *dev = node->minor->dev;
1808 struct drm_i915_private *dev_priv = dev->dev_private;
1809
1810 if (!IS_HASWELL(dev)) {
1811 seq_puts(m, "not supported\n");
1812 return 0;
1813 }
1814
1815 mutex_lock(&dev_priv->pc8.lock);
1816 seq_printf(m, "Requirements met: %s\n",
1817 yesno(dev_priv->pc8.requirements_met));
1818 seq_printf(m, "GPU idle: %s\n", yesno(dev_priv->pc8.gpu_idle));
1819 seq_printf(m, "Disable count: %d\n", dev_priv->pc8.disable_count);
1820 seq_printf(m, "IRQs disabled: %s\n",
1821 yesno(dev_priv->pc8.irqs_disabled));
1822 seq_printf(m, "Enabled: %s\n", yesno(dev_priv->pc8.enabled));
1823 mutex_unlock(&dev_priv->pc8.lock);
1824
1825 return 0;
1826 }
1827
1828 static int
1829 i915_wedged_get(void *data, u64 *val)
1830 {
1831 struct drm_device *dev = data;
1832 drm_i915_private_t *dev_priv = dev->dev_private;
1833
1834 *val = atomic_read(&dev_priv->gpu_error.reset_counter);
1835
1836 return 0;
1837 }
1838
1839 static int
1840 i915_wedged_set(void *data, u64 val)
1841 {
1842 struct drm_device *dev = data;
1843
1844 DRM_INFO("Manually setting wedged to %llu\n", val);
1845 i915_handle_error(dev, val);
1846
1847 return 0;
1848 }
1849
1850 DEFINE_SIMPLE_ATTRIBUTE(i915_wedged_fops,
1851 i915_wedged_get, i915_wedged_set,
1852 "%llu\n");
1853
1854 static int
1855 i915_ring_stop_get(void *data, u64 *val)
1856 {
1857 struct drm_device *dev = data;
1858 drm_i915_private_t *dev_priv = dev->dev_private;
1859
1860 *val = dev_priv->gpu_error.stop_rings;
1861
1862 return 0;
1863 }
1864
1865 static int
1866 i915_ring_stop_set(void *data, u64 val)
1867 {
1868 struct drm_device *dev = data;
1869 struct drm_i915_private *dev_priv = dev->dev_private;
1870 int ret;
1871
1872 DRM_DEBUG_DRIVER("Stopping rings 0x%08llx\n", val);
1873
1874 ret = mutex_lock_interruptible(&dev->struct_mutex);
1875 if (ret)
1876 return ret;
1877
1878 dev_priv->gpu_error.stop_rings = val;
1879 mutex_unlock(&dev->struct_mutex);
1880
1881 return 0;
1882 }
1883
1884 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_stop_fops,
1885 i915_ring_stop_get, i915_ring_stop_set,
1886 "0x%08llx\n");
1887
1888 #define DROP_UNBOUND 0x1
1889 #define DROP_BOUND 0x2
1890 #define DROP_RETIRE 0x4
1891 #define DROP_ACTIVE 0x8
1892 #define DROP_ALL (DROP_UNBOUND | \
1893 DROP_BOUND | \
1894 DROP_RETIRE | \
1895 DROP_ACTIVE)
1896 static int
1897 i915_drop_caches_get(void *data, u64 *val)
1898 {
1899 *val = DROP_ALL;
1900
1901 return 0;
1902 }
1903
1904 static int
1905 i915_drop_caches_set(void *data, u64 val)
1906 {
1907 struct drm_device *dev = data;
1908 struct drm_i915_private *dev_priv = dev->dev_private;
1909 struct drm_i915_gem_object *obj, *next;
1910 struct i915_address_space *vm;
1911 struct i915_vma *vma, *x;
1912 int ret;
1913
1914 DRM_DEBUG_DRIVER("Dropping caches: 0x%08llx\n", val);
1915
1916 /* No need to check and wait for gpu resets, only libdrm auto-restarts
1917 * on ioctls on -EAGAIN. */
1918 ret = mutex_lock_interruptible(&dev->struct_mutex);
1919 if (ret)
1920 return ret;
1921
1922 if (val & DROP_ACTIVE) {
1923 ret = i915_gpu_idle(dev);
1924 if (ret)
1925 goto unlock;
1926 }
1927
1928 if (val & (DROP_RETIRE | DROP_ACTIVE))
1929 i915_gem_retire_requests(dev);
1930
1931 if (val & DROP_BOUND) {
1932 list_for_each_entry(vm, &dev_priv->vm_list, global_link) {
1933 list_for_each_entry_safe(vma, x, &vm->inactive_list,
1934 mm_list) {
1935 if (vma->obj->pin_count)
1936 continue;
1937
1938 ret = i915_vma_unbind(vma);
1939 if (ret)
1940 goto unlock;
1941 }
1942 }
1943 }
1944
1945 if (val & DROP_UNBOUND) {
1946 list_for_each_entry_safe(obj, next, &dev_priv->mm.unbound_list,
1947 global_list)
1948 if (obj->pages_pin_count == 0) {
1949 ret = i915_gem_object_put_pages(obj);
1950 if (ret)
1951 goto unlock;
1952 }
1953 }
1954
1955 unlock:
1956 mutex_unlock(&dev->struct_mutex);
1957
1958 return ret;
1959 }
1960
1961 DEFINE_SIMPLE_ATTRIBUTE(i915_drop_caches_fops,
1962 i915_drop_caches_get, i915_drop_caches_set,
1963 "0x%08llx\n");
1964
1965 static int
1966 i915_max_freq_get(void *data, u64 *val)
1967 {
1968 struct drm_device *dev = data;
1969 drm_i915_private_t *dev_priv = dev->dev_private;
1970 int ret;
1971
1972 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
1973 return -ENODEV;
1974
1975 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
1976 if (ret)
1977 return ret;
1978
1979 if (IS_VALLEYVIEW(dev))
1980 *val = vlv_gpu_freq(dev_priv->mem_freq,
1981 dev_priv->rps.max_delay);
1982 else
1983 *val = dev_priv->rps.max_delay * GT_FREQUENCY_MULTIPLIER;
1984 mutex_unlock(&dev_priv->rps.hw_lock);
1985
1986 return 0;
1987 }
1988
1989 static int
1990 i915_max_freq_set(void *data, u64 val)
1991 {
1992 struct drm_device *dev = data;
1993 struct drm_i915_private *dev_priv = dev->dev_private;
1994 int ret;
1995
1996 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
1997 return -ENODEV;
1998
1999 DRM_DEBUG_DRIVER("Manually setting max freq to %llu\n", val);
2000
2001 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
2002 if (ret)
2003 return ret;
2004
2005 /*
2006 * Turbo will still be enabled, but won't go above the set value.
2007 */
2008 if (IS_VALLEYVIEW(dev)) {
2009 val = vlv_freq_opcode(dev_priv->mem_freq, val);
2010 dev_priv->rps.max_delay = val;
2011 gen6_set_rps(dev, val);
2012 } else {
2013 do_div(val, GT_FREQUENCY_MULTIPLIER);
2014 dev_priv->rps.max_delay = val;
2015 gen6_set_rps(dev, val);
2016 }
2017
2018 mutex_unlock(&dev_priv->rps.hw_lock);
2019
2020 return 0;
2021 }
2022
2023 DEFINE_SIMPLE_ATTRIBUTE(i915_max_freq_fops,
2024 i915_max_freq_get, i915_max_freq_set,
2025 "%llu\n");
2026
2027 static int
2028 i915_min_freq_get(void *data, u64 *val)
2029 {
2030 struct drm_device *dev = data;
2031 drm_i915_private_t *dev_priv = dev->dev_private;
2032 int ret;
2033
2034 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
2035 return -ENODEV;
2036
2037 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
2038 if (ret)
2039 return ret;
2040
2041 if (IS_VALLEYVIEW(dev))
2042 *val = vlv_gpu_freq(dev_priv->mem_freq,
2043 dev_priv->rps.min_delay);
2044 else
2045 *val = dev_priv->rps.min_delay * GT_FREQUENCY_MULTIPLIER;
2046 mutex_unlock(&dev_priv->rps.hw_lock);
2047
2048 return 0;
2049 }
2050
2051 static int
2052 i915_min_freq_set(void *data, u64 val)
2053 {
2054 struct drm_device *dev = data;
2055 struct drm_i915_private *dev_priv = dev->dev_private;
2056 int ret;
2057
2058 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
2059 return -ENODEV;
2060
2061 DRM_DEBUG_DRIVER("Manually setting min freq to %llu\n", val);
2062
2063 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
2064 if (ret)
2065 return ret;
2066
2067 /*
2068 * Turbo will still be enabled, but won't go below the set value.
2069 */
2070 if (IS_VALLEYVIEW(dev)) {
2071 val = vlv_freq_opcode(dev_priv->mem_freq, val);
2072 dev_priv->rps.min_delay = val;
2073 valleyview_set_rps(dev, val);
2074 } else {
2075 do_div(val, GT_FREQUENCY_MULTIPLIER);
2076 dev_priv->rps.min_delay = val;
2077 gen6_set_rps(dev, val);
2078 }
2079 mutex_unlock(&dev_priv->rps.hw_lock);
2080
2081 return 0;
2082 }
2083
2084 DEFINE_SIMPLE_ATTRIBUTE(i915_min_freq_fops,
2085 i915_min_freq_get, i915_min_freq_set,
2086 "%llu\n");
2087
2088 static int
2089 i915_cache_sharing_get(void *data, u64 *val)
2090 {
2091 struct drm_device *dev = data;
2092 drm_i915_private_t *dev_priv = dev->dev_private;
2093 u32 snpcr;
2094 int ret;
2095
2096 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
2097 return -ENODEV;
2098
2099 ret = mutex_lock_interruptible(&dev->struct_mutex);
2100 if (ret)
2101 return ret;
2102
2103 snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
2104 mutex_unlock(&dev_priv->dev->struct_mutex);
2105
2106 *val = (snpcr & GEN6_MBC_SNPCR_MASK) >> GEN6_MBC_SNPCR_SHIFT;
2107
2108 return 0;
2109 }
2110
2111 static int
2112 i915_cache_sharing_set(void *data, u64 val)
2113 {
2114 struct drm_device *dev = data;
2115 struct drm_i915_private *dev_priv = dev->dev_private;
2116 u32 snpcr;
2117
2118 if (!(IS_GEN6(dev) || IS_GEN7(dev)))
2119 return -ENODEV;
2120
2121 if (val > 3)
2122 return -EINVAL;
2123
2124 DRM_DEBUG_DRIVER("Manually setting uncore sharing to %llu\n", val);
2125
2126 /* Update the cache sharing policy here as well */
2127 snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
2128 snpcr &= ~GEN6_MBC_SNPCR_MASK;
2129 snpcr |= (val << GEN6_MBC_SNPCR_SHIFT);
2130 I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr);
2131
2132 return 0;
2133 }
2134
2135 DEFINE_SIMPLE_ATTRIBUTE(i915_cache_sharing_fops,
2136 i915_cache_sharing_get, i915_cache_sharing_set,
2137 "%llu\n");
2138
2139 /* As the drm_debugfs_init() routines are called before dev->dev_private is
2140 * allocated we need to hook into the minor for release. */
2141 static int
2142 drm_add_fake_info_node(struct drm_minor *minor,
2143 struct dentry *ent,
2144 const void *key)
2145 {
2146 struct drm_info_node *node;
2147
2148 node = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
2149 if (node == NULL) {
2150 debugfs_remove(ent);
2151 return -ENOMEM;
2152 }
2153
2154 node->minor = minor;
2155 node->dent = ent;
2156 node->info_ent = (void *) key;
2157
2158 mutex_lock(&minor->debugfs_lock);
2159 list_add(&node->list, &minor->debugfs_list);
2160 mutex_unlock(&minor->debugfs_lock);
2161
2162 return 0;
2163 }
2164
2165 static int i915_forcewake_open(struct inode *inode, struct file *file)
2166 {
2167 struct drm_device *dev = inode->i_private;
2168 struct drm_i915_private *dev_priv = dev->dev_private;
2169
2170 if (INTEL_INFO(dev)->gen < 6)
2171 return 0;
2172
2173 gen6_gt_force_wake_get(dev_priv);
2174
2175 return 0;
2176 }
2177
2178 static int i915_forcewake_release(struct inode *inode, struct file *file)
2179 {
2180 struct drm_device *dev = inode->i_private;
2181 struct drm_i915_private *dev_priv = dev->dev_private;
2182
2183 if (INTEL_INFO(dev)->gen < 6)
2184 return 0;
2185
2186 gen6_gt_force_wake_put(dev_priv);
2187
2188 return 0;
2189 }
2190
2191 static const struct file_operations i915_forcewake_fops = {
2192 .owner = THIS_MODULE,
2193 .open = i915_forcewake_open,
2194 .release = i915_forcewake_release,
2195 };
2196
2197 static int i915_forcewake_create(struct dentry *root, struct drm_minor *minor)
2198 {
2199 struct drm_device *dev = minor->dev;
2200 struct dentry *ent;
2201
2202 ent = debugfs_create_file("i915_forcewake_user",
2203 S_IRUSR,
2204 root, dev,
2205 &i915_forcewake_fops);
2206 if (IS_ERR(ent))
2207 return PTR_ERR(ent);
2208
2209 return drm_add_fake_info_node(minor, ent, &i915_forcewake_fops);
2210 }
2211
2212 static int i915_debugfs_create(struct dentry *root,
2213 struct drm_minor *minor,
2214 const char *name,
2215 const struct file_operations *fops)
2216 {
2217 struct drm_device *dev = minor->dev;
2218 struct dentry *ent;
2219
2220 ent = debugfs_create_file(name,
2221 S_IRUGO | S_IWUSR,
2222 root, dev,
2223 fops);
2224 if (IS_ERR(ent))
2225 return PTR_ERR(ent);
2226
2227 return drm_add_fake_info_node(minor, ent, fops);
2228 }
2229
2230 static struct drm_info_list i915_debugfs_list[] = {
2231 {"i915_capabilities", i915_capabilities, 0},
2232 {"i915_gem_objects", i915_gem_object_info, 0},
2233 {"i915_gem_gtt", i915_gem_gtt_info, 0},
2234 {"i915_gem_pinned", i915_gem_gtt_info, 0, (void *) PINNED_LIST},
2235 {"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
2236 {"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST},
2237 {"i915_gem_stolen", i915_gem_stolen_list_info },
2238 {"i915_gem_pageflip", i915_gem_pageflip_info, 0},
2239 {"i915_gem_request", i915_gem_request_info, 0},
2240 {"i915_gem_seqno", i915_gem_seqno_info, 0},
2241 {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
2242 {"i915_gem_interrupt", i915_interrupt_info, 0},
2243 {"i915_gem_hws", i915_hws_info, 0, (void *)RCS},
2244 {"i915_gem_hws_blt", i915_hws_info, 0, (void *)BCS},
2245 {"i915_gem_hws_bsd", i915_hws_info, 0, (void *)VCS},
2246 {"i915_gem_hws_vebox", i915_hws_info, 0, (void *)VECS},
2247 {"i915_rstdby_delays", i915_rstdby_delays, 0},
2248 {"i915_cur_delayinfo", i915_cur_delayinfo, 0},
2249 {"i915_delayfreq_table", i915_delayfreq_table, 0},
2250 {"i915_inttoext_table", i915_inttoext_table, 0},
2251 {"i915_drpc_info", i915_drpc_info, 0},
2252 {"i915_emon_status", i915_emon_status, 0},
2253 {"i915_ring_freq_table", i915_ring_freq_table, 0},
2254 {"i915_gfxec", i915_gfxec, 0},
2255 {"i915_fbc_status", i915_fbc_status, 0},
2256 {"i915_ips_status", i915_ips_status, 0},
2257 {"i915_sr_status", i915_sr_status, 0},
2258 {"i915_opregion", i915_opregion, 0},
2259 {"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
2260 {"i915_context_status", i915_context_status, 0},
2261 {"i915_gen6_forcewake_count", i915_gen6_forcewake_count_info, 0},
2262 {"i915_swizzle_info", i915_swizzle_info, 0},
2263 {"i915_ppgtt_info", i915_ppgtt_info, 0},
2264 {"i915_dpio", i915_dpio_info, 0},
2265 {"i915_llc", i915_llc, 0},
2266 {"i915_edp_psr_status", i915_edp_psr_status, 0},
2267 {"i915_energy_uJ", i915_energy_uJ, 0},
2268 {"i915_pc8_status", i915_pc8_status, 0},
2269 };
2270 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
2271
2272 static struct i915_debugfs_files {
2273 const char *name;
2274 const struct file_operations *fops;
2275 } i915_debugfs_files[] = {
2276 {"i915_wedged", &i915_wedged_fops},
2277 {"i915_max_freq", &i915_max_freq_fops},
2278 {"i915_min_freq", &i915_min_freq_fops},
2279 {"i915_cache_sharing", &i915_cache_sharing_fops},
2280 {"i915_ring_stop", &i915_ring_stop_fops},
2281 {"i915_gem_drop_caches", &i915_drop_caches_fops},
2282 {"i915_error_state", &i915_error_state_fops},
2283 {"i915_next_seqno", &i915_next_seqno_fops},
2284 };
2285
2286 int i915_debugfs_init(struct drm_minor *minor)
2287 {
2288 int ret, i;
2289
2290 ret = i915_forcewake_create(minor->debugfs_root, minor);
2291 if (ret)
2292 return ret;
2293
2294 for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
2295 ret = i915_debugfs_create(minor->debugfs_root, minor,
2296 i915_debugfs_files[i].name,
2297 i915_debugfs_files[i].fops);
2298 if (ret)
2299 return ret;
2300 }
2301
2302 return drm_debugfs_create_files(i915_debugfs_list,
2303 I915_DEBUGFS_ENTRIES,
2304 minor->debugfs_root, minor);
2305 }
2306
2307 void i915_debugfs_cleanup(struct drm_minor *minor)
2308 {
2309 int i;
2310
2311 drm_debugfs_remove_files(i915_debugfs_list,
2312 I915_DEBUGFS_ENTRIES, minor);
2313 drm_debugfs_remove_files((struct drm_info_list *) &i915_forcewake_fops,
2314 1, minor);
2315 for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
2316 struct drm_info_list *info_list =
2317 (struct drm_info_list *) i915_debugfs_files[i].fops;
2318
2319 drm_debugfs_remove_files(info_list, 1, minor);
2320 }
2321 }
2322
2323 #endif /* CONFIG_DEBUG_FS */
Linux kernel - Deliverables
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