2 * Copyright © 2008 Intel Corporation
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:
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
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
24 * Eric Anholt <eric@anholt.net>
25 * Keith Packard <keithp@keithp.com>
29 #include <linux/debugfs.h>
30 #include <linux/sort.h>
31 #include "intel_drv.h"
33 static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node)
35 return to_i915(node->minor->dev);
38 static __always_inline void seq_print_param(struct seq_file *m,
43 if (!__builtin_strcmp(type, "bool"))
44 seq_printf(m, "i915.%s=%s\n", name, yesno(*(const bool *)x));
45 else if (!__builtin_strcmp(type, "int"))
46 seq_printf(m, "i915.%s=%d\n", name, *(const int *)x);
47 else if (!__builtin_strcmp(type, "unsigned int"))
48 seq_printf(m, "i915.%s=%u\n", name, *(const unsigned int *)x);
49 else if (!__builtin_strcmp(type, "char *"))
50 seq_printf(m, "i915.%s=%s\n", name, *(const char **)x);
55 static int i915_capabilities(struct seq_file *m, void *data)
57 struct drm_i915_private *dev_priv = node_to_i915(m->private);
58 const struct intel_device_info *info = INTEL_INFO(dev_priv);
60 seq_printf(m, "gen: %d\n", INTEL_GEN(dev_priv));
61 seq_printf(m, "platform: %s\n", intel_platform_name(info->platform));
62 seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev_priv));
64 #define PRINT_FLAG(x) seq_printf(m, #x ": %s\n", yesno(info->x))
65 DEV_INFO_FOR_EACH_FLAG(PRINT_FLAG);
68 kernel_param_lock(THIS_MODULE);
69 #define PRINT_PARAM(T, x) seq_print_param(m, #x, #T, &i915.x);
70 I915_PARAMS_FOR_EACH(PRINT_PARAM);
72 kernel_param_unlock(THIS_MODULE);
77 static char get_active_flag(struct drm_i915_gem_object *obj)
79 return i915_gem_object_is_active(obj) ? '*' : ' ';
82 static char get_pin_flag(struct drm_i915_gem_object *obj)
84 return obj->pin_display ? 'p' : ' ';
87 static char get_tiling_flag(struct drm_i915_gem_object *obj)
89 switch (i915_gem_object_get_tiling(obj)) {
91 case I915_TILING_NONE: return ' ';
92 case I915_TILING_X: return 'X';
93 case I915_TILING_Y: return 'Y';
97 static char get_global_flag(struct drm_i915_gem_object *obj)
99 return !list_empty(&obj->userfault_link) ? 'g' : ' ';
102 static char get_pin_mapped_flag(struct drm_i915_gem_object *obj)
104 return obj->mm.mapping ? 'M' : ' ';
107 static u64 i915_gem_obj_total_ggtt_size(struct drm_i915_gem_object *obj)
110 struct i915_vma *vma;
112 list_for_each_entry(vma, &obj->vma_list, obj_link) {
113 if (i915_vma_is_ggtt(vma) && drm_mm_node_allocated(&vma->node))
114 size += vma->node.size;
121 describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
123 struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
124 struct intel_engine_cs *engine;
125 struct i915_vma *vma;
126 unsigned int frontbuffer_bits;
129 lockdep_assert_held(&obj->base.dev->struct_mutex);
131 seq_printf(m, "%pK: %c%c%c%c%c %8zdKiB %02x %02x %s%s%s",
133 get_active_flag(obj),
135 get_tiling_flag(obj),
136 get_global_flag(obj),
137 get_pin_mapped_flag(obj),
138 obj->base.size / 1024,
139 obj->base.read_domains,
140 obj->base.write_domain,
141 i915_cache_level_str(dev_priv, obj->cache_level),
142 obj->mm.dirty ? " dirty" : "",
143 obj->mm.madv == I915_MADV_DONTNEED ? " purgeable" : "");
145 seq_printf(m, " (name: %d)", obj->base.name);
146 list_for_each_entry(vma, &obj->vma_list, obj_link) {
147 if (i915_vma_is_pinned(vma))
150 seq_printf(m, " (pinned x %d)", pin_count);
151 if (obj->pin_display)
152 seq_printf(m, " (display)");
153 list_for_each_entry(vma, &obj->vma_list, obj_link) {
154 if (!drm_mm_node_allocated(&vma->node))
157 seq_printf(m, " (%sgtt offset: %08llx, size: %08llx",
158 i915_vma_is_ggtt(vma) ? "g" : "pp",
159 vma->node.start, vma->node.size);
160 if (i915_vma_is_ggtt(vma)) {
161 switch (vma->ggtt_view.type) {
162 case I915_GGTT_VIEW_NORMAL:
163 seq_puts(m, ", normal");
166 case I915_GGTT_VIEW_PARTIAL:
167 seq_printf(m, ", partial [%08llx+%x]",
168 vma->ggtt_view.partial.offset << PAGE_SHIFT,
169 vma->ggtt_view.partial.size << PAGE_SHIFT);
172 case I915_GGTT_VIEW_ROTATED:
173 seq_printf(m, ", rotated [(%ux%u, stride=%u, offset=%u), (%ux%u, stride=%u, offset=%u)]",
174 vma->ggtt_view.rotated.plane[0].width,
175 vma->ggtt_view.rotated.plane[0].height,
176 vma->ggtt_view.rotated.plane[0].stride,
177 vma->ggtt_view.rotated.plane[0].offset,
178 vma->ggtt_view.rotated.plane[1].width,
179 vma->ggtt_view.rotated.plane[1].height,
180 vma->ggtt_view.rotated.plane[1].stride,
181 vma->ggtt_view.rotated.plane[1].offset);
185 MISSING_CASE(vma->ggtt_view.type);
190 seq_printf(m, " , fence: %d%s",
192 i915_gem_active_isset(&vma->last_fence) ? "*" : "");
196 seq_printf(m, " (stolen: %08llx)", obj->stolen->start);
198 engine = i915_gem_object_last_write_engine(obj);
200 seq_printf(m, " (%s)", engine->name);
202 frontbuffer_bits = atomic_read(&obj->frontbuffer_bits);
203 if (frontbuffer_bits)
204 seq_printf(m, " (frontbuffer: 0x%03x)", frontbuffer_bits);
207 static int obj_rank_by_stolen(const void *A, const void *B)
209 const struct drm_i915_gem_object *a =
210 *(const struct drm_i915_gem_object **)A;
211 const struct drm_i915_gem_object *b =
212 *(const struct drm_i915_gem_object **)B;
214 if (a->stolen->start < b->stolen->start)
216 if (a->stolen->start > b->stolen->start)
221 static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
223 struct drm_i915_private *dev_priv = node_to_i915(m->private);
224 struct drm_device *dev = &dev_priv->drm;
225 struct drm_i915_gem_object **objects;
226 struct drm_i915_gem_object *obj;
227 u64 total_obj_size, total_gtt_size;
228 unsigned long total, count, n;
231 total = READ_ONCE(dev_priv->mm.object_count);
232 objects = drm_malloc_ab(total, sizeof(*objects));
236 ret = mutex_lock_interruptible(&dev->struct_mutex);
240 total_obj_size = total_gtt_size = count = 0;
241 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_link) {
245 if (obj->stolen == NULL)
248 objects[count++] = obj;
249 total_obj_size += obj->base.size;
250 total_gtt_size += i915_gem_obj_total_ggtt_size(obj);
253 list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_link) {
257 if (obj->stolen == NULL)
260 objects[count++] = obj;
261 total_obj_size += obj->base.size;
264 sort(objects, count, sizeof(*objects), obj_rank_by_stolen, NULL);
266 seq_puts(m, "Stolen:\n");
267 for (n = 0; n < count; n++) {
269 describe_obj(m, objects[n]);
272 seq_printf(m, "Total %lu objects, %llu bytes, %llu GTT size\n",
273 count, total_obj_size, total_gtt_size);
275 mutex_unlock(&dev->struct_mutex);
277 drm_free_large(objects);
282 struct drm_i915_file_private *file_priv;
286 u64 active, inactive;
289 static int per_file_stats(int id, void *ptr, void *data)
291 struct drm_i915_gem_object *obj = ptr;
292 struct file_stats *stats = data;
293 struct i915_vma *vma;
296 stats->total += obj->base.size;
297 if (!obj->bind_count)
298 stats->unbound += obj->base.size;
299 if (obj->base.name || obj->base.dma_buf)
300 stats->shared += obj->base.size;
302 list_for_each_entry(vma, &obj->vma_list, obj_link) {
303 if (!drm_mm_node_allocated(&vma->node))
306 if (i915_vma_is_ggtt(vma)) {
307 stats->global += vma->node.size;
309 struct i915_hw_ppgtt *ppgtt = i915_vm_to_ppgtt(vma->vm);
311 if (ppgtt->base.file != stats->file_priv)
315 if (i915_vma_is_active(vma))
316 stats->active += vma->node.size;
318 stats->inactive += vma->node.size;
324 #define print_file_stats(m, name, stats) do { \
326 seq_printf(m, "%s: %lu objects, %llu bytes (%llu active, %llu inactive, %llu global, %llu shared, %llu unbound)\n", \
337 static void print_batch_pool_stats(struct seq_file *m,
338 struct drm_i915_private *dev_priv)
340 struct drm_i915_gem_object *obj;
341 struct file_stats stats;
342 struct intel_engine_cs *engine;
343 enum intel_engine_id id;
346 memset(&stats, 0, sizeof(stats));
348 for_each_engine(engine, dev_priv, id) {
349 for (j = 0; j < ARRAY_SIZE(engine->batch_pool.cache_list); j++) {
350 list_for_each_entry(obj,
351 &engine->batch_pool.cache_list[j],
353 per_file_stats(0, obj, &stats);
357 print_file_stats(m, "[k]batch pool", stats);
360 static int per_file_ctx_stats(int id, void *ptr, void *data)
362 struct i915_gem_context *ctx = ptr;
365 for (n = 0; n < ARRAY_SIZE(ctx->engine); n++) {
366 if (ctx->engine[n].state)
367 per_file_stats(0, ctx->engine[n].state->obj, data);
368 if (ctx->engine[n].ring)
369 per_file_stats(0, ctx->engine[n].ring->vma->obj, data);
375 static void print_context_stats(struct seq_file *m,
376 struct drm_i915_private *dev_priv)
378 struct drm_device *dev = &dev_priv->drm;
379 struct file_stats stats;
380 struct drm_file *file;
382 memset(&stats, 0, sizeof(stats));
384 mutex_lock(&dev->struct_mutex);
385 if (dev_priv->kernel_context)
386 per_file_ctx_stats(0, dev_priv->kernel_context, &stats);
388 list_for_each_entry(file, &dev->filelist, lhead) {
389 struct drm_i915_file_private *fpriv = file->driver_priv;
390 idr_for_each(&fpriv->context_idr, per_file_ctx_stats, &stats);
392 mutex_unlock(&dev->struct_mutex);
394 print_file_stats(m, "[k]contexts", stats);
397 static int i915_gem_object_info(struct seq_file *m, void *data)
399 struct drm_i915_private *dev_priv = node_to_i915(m->private);
400 struct drm_device *dev = &dev_priv->drm;
401 struct i915_ggtt *ggtt = &dev_priv->ggtt;
402 u32 count, mapped_count, purgeable_count, dpy_count;
403 u64 size, mapped_size, purgeable_size, dpy_size;
404 struct drm_i915_gem_object *obj;
405 struct drm_file *file;
408 ret = mutex_lock_interruptible(&dev->struct_mutex);
412 seq_printf(m, "%u objects, %llu bytes\n",
413 dev_priv->mm.object_count,
414 dev_priv->mm.object_memory);
417 mapped_size = mapped_count = 0;
418 purgeable_size = purgeable_count = 0;
419 list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_link) {
420 size += obj->base.size;
423 if (obj->mm.madv == I915_MADV_DONTNEED) {
424 purgeable_size += obj->base.size;
428 if (obj->mm.mapping) {
430 mapped_size += obj->base.size;
433 seq_printf(m, "%u unbound objects, %llu bytes\n", count, size);
435 size = count = dpy_size = dpy_count = 0;
436 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_link) {
437 size += obj->base.size;
440 if (obj->pin_display) {
441 dpy_size += obj->base.size;
445 if (obj->mm.madv == I915_MADV_DONTNEED) {
446 purgeable_size += obj->base.size;
450 if (obj->mm.mapping) {
452 mapped_size += obj->base.size;
455 seq_printf(m, "%u bound objects, %llu bytes\n",
457 seq_printf(m, "%u purgeable objects, %llu bytes\n",
458 purgeable_count, purgeable_size);
459 seq_printf(m, "%u mapped objects, %llu bytes\n",
460 mapped_count, mapped_size);
461 seq_printf(m, "%u display objects (pinned), %llu bytes\n",
462 dpy_count, dpy_size);
464 seq_printf(m, "%llu [%llu] gtt total\n",
465 ggtt->base.total, ggtt->mappable_end);
468 print_batch_pool_stats(m, dev_priv);
469 mutex_unlock(&dev->struct_mutex);
471 mutex_lock(&dev->filelist_mutex);
472 print_context_stats(m, dev_priv);
473 list_for_each_entry_reverse(file, &dev->filelist, lhead) {
474 struct file_stats stats;
475 struct drm_i915_file_private *file_priv = file->driver_priv;
476 struct drm_i915_gem_request *request;
477 struct task_struct *task;
479 memset(&stats, 0, sizeof(stats));
480 stats.file_priv = file->driver_priv;
481 spin_lock(&file->table_lock);
482 idr_for_each(&file->object_idr, per_file_stats, &stats);
483 spin_unlock(&file->table_lock);
485 * Although we have a valid reference on file->pid, that does
486 * not guarantee that the task_struct who called get_pid() is
487 * still alive (e.g. get_pid(current) => fork() => exit()).
488 * Therefore, we need to protect this ->comm access using RCU.
490 mutex_lock(&dev->struct_mutex);
491 request = list_first_entry_or_null(&file_priv->mm.request_list,
492 struct drm_i915_gem_request,
495 task = pid_task(request && request->ctx->pid ?
496 request->ctx->pid : file->pid,
498 print_file_stats(m, task ? task->comm : "<unknown>", stats);
500 mutex_unlock(&dev->struct_mutex);
502 mutex_unlock(&dev->filelist_mutex);
507 static int i915_gem_gtt_info(struct seq_file *m, void *data)
509 struct drm_info_node *node = m->private;
510 struct drm_i915_private *dev_priv = node_to_i915(node);
511 struct drm_device *dev = &dev_priv->drm;
512 bool show_pin_display_only = !!node->info_ent->data;
513 struct drm_i915_gem_object *obj;
514 u64 total_obj_size, total_gtt_size;
517 ret = mutex_lock_interruptible(&dev->struct_mutex);
521 total_obj_size = total_gtt_size = count = 0;
522 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_link) {
523 if (show_pin_display_only && !obj->pin_display)
527 describe_obj(m, obj);
529 total_obj_size += obj->base.size;
530 total_gtt_size += i915_gem_obj_total_ggtt_size(obj);
534 mutex_unlock(&dev->struct_mutex);
536 seq_printf(m, "Total %d objects, %llu bytes, %llu GTT size\n",
537 count, total_obj_size, total_gtt_size);
542 static int i915_gem_pageflip_info(struct seq_file *m, void *data)
544 struct drm_i915_private *dev_priv = node_to_i915(m->private);
545 struct drm_device *dev = &dev_priv->drm;
546 struct intel_crtc *crtc;
549 ret = mutex_lock_interruptible(&dev->struct_mutex);
553 for_each_intel_crtc(dev, crtc) {
554 const char pipe = pipe_name(crtc->pipe);
555 const char plane = plane_name(crtc->plane);
556 struct intel_flip_work *work;
558 spin_lock_irq(&dev->event_lock);
559 work = crtc->flip_work;
561 seq_printf(m, "No flip due on pipe %c (plane %c)\n",
567 pending = atomic_read(&work->pending);
569 seq_printf(m, "Flip ioctl preparing on pipe %c (plane %c)\n",
572 seq_printf(m, "Flip pending (waiting for vsync) on pipe %c (plane %c)\n",
575 if (work->flip_queued_req) {
576 struct intel_engine_cs *engine = work->flip_queued_req->engine;
578 seq_printf(m, "Flip queued on %s at seqno %x, last submitted seqno %x [current breadcrumb %x], completed? %d\n",
580 work->flip_queued_req->global_seqno,
581 intel_engine_last_submit(engine),
582 intel_engine_get_seqno(engine),
583 i915_gem_request_completed(work->flip_queued_req));
585 seq_printf(m, "Flip not associated with any ring\n");
586 seq_printf(m, "Flip queued on frame %d, (was ready on frame %d), now %d\n",
587 work->flip_queued_vblank,
588 work->flip_ready_vblank,
589 intel_crtc_get_vblank_counter(crtc));
590 seq_printf(m, "%d prepares\n", atomic_read(&work->pending));
592 if (INTEL_GEN(dev_priv) >= 4)
593 addr = I915_HI_DISPBASE(I915_READ(DSPSURF(crtc->plane)));
595 addr = I915_READ(DSPADDR(crtc->plane));
596 seq_printf(m, "Current scanout address 0x%08x\n", addr);
598 if (work->pending_flip_obj) {
599 seq_printf(m, "New framebuffer address 0x%08lx\n", (long)work->gtt_offset);
600 seq_printf(m, "MMIO update completed? %d\n", addr == work->gtt_offset);
603 spin_unlock_irq(&dev->event_lock);
606 mutex_unlock(&dev->struct_mutex);
611 static int i915_gem_batch_pool_info(struct seq_file *m, void *data)
613 struct drm_i915_private *dev_priv = node_to_i915(m->private);
614 struct drm_device *dev = &dev_priv->drm;
615 struct drm_i915_gem_object *obj;
616 struct intel_engine_cs *engine;
617 enum intel_engine_id id;
621 ret = mutex_lock_interruptible(&dev->struct_mutex);
625 for_each_engine(engine, dev_priv, id) {
626 for (j = 0; j < ARRAY_SIZE(engine->batch_pool.cache_list); j++) {
630 list_for_each_entry(obj,
631 &engine->batch_pool.cache_list[j],
634 seq_printf(m, "%s cache[%d]: %d objects\n",
635 engine->name, j, count);
637 list_for_each_entry(obj,
638 &engine->batch_pool.cache_list[j],
641 describe_obj(m, obj);
649 seq_printf(m, "total: %d\n", total);
651 mutex_unlock(&dev->struct_mutex);
656 static void print_request(struct seq_file *m,
657 struct drm_i915_gem_request *rq,
660 seq_printf(m, "%s%x [%x:%x] prio=%d @ %dms: %s\n", prefix,
661 rq->global_seqno, rq->ctx->hw_id, rq->fence.seqno,
662 rq->priotree.priority,
663 jiffies_to_msecs(jiffies - rq->emitted_jiffies),
664 rq->timeline->common->name);
667 static int i915_gem_request_info(struct seq_file *m, void *data)
669 struct drm_i915_private *dev_priv = node_to_i915(m->private);
670 struct drm_device *dev = &dev_priv->drm;
671 struct drm_i915_gem_request *req;
672 struct intel_engine_cs *engine;
673 enum intel_engine_id id;
676 ret = mutex_lock_interruptible(&dev->struct_mutex);
681 for_each_engine(engine, dev_priv, id) {
685 list_for_each_entry(req, &engine->timeline->requests, link)
690 seq_printf(m, "%s requests: %d\n", engine->name, count);
691 list_for_each_entry(req, &engine->timeline->requests, link)
692 print_request(m, req, " ");
696 mutex_unlock(&dev->struct_mutex);
699 seq_puts(m, "No requests\n");
704 static void i915_ring_seqno_info(struct seq_file *m,
705 struct intel_engine_cs *engine)
707 struct intel_breadcrumbs *b = &engine->breadcrumbs;
710 seq_printf(m, "Current sequence (%s): %x\n",
711 engine->name, intel_engine_get_seqno(engine));
713 spin_lock_irq(&b->rb_lock);
714 for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) {
715 struct intel_wait *w = rb_entry(rb, typeof(*w), node);
717 seq_printf(m, "Waiting (%s): %s [%d] on %x\n",
718 engine->name, w->tsk->comm, w->tsk->pid, w->seqno);
720 spin_unlock_irq(&b->rb_lock);
723 static int i915_gem_seqno_info(struct seq_file *m, void *data)
725 struct drm_i915_private *dev_priv = node_to_i915(m->private);
726 struct intel_engine_cs *engine;
727 enum intel_engine_id id;
729 for_each_engine(engine, dev_priv, id)
730 i915_ring_seqno_info(m, engine);
736 static int i915_interrupt_info(struct seq_file *m, void *data)
738 struct drm_i915_private *dev_priv = node_to_i915(m->private);
739 struct intel_engine_cs *engine;
740 enum intel_engine_id id;
743 intel_runtime_pm_get(dev_priv);
745 if (IS_CHERRYVIEW(dev_priv)) {
746 seq_printf(m, "Master Interrupt Control:\t%08x\n",
747 I915_READ(GEN8_MASTER_IRQ));
749 seq_printf(m, "Display IER:\t%08x\n",
751 seq_printf(m, "Display IIR:\t%08x\n",
753 seq_printf(m, "Display IIR_RW:\t%08x\n",
754 I915_READ(VLV_IIR_RW));
755 seq_printf(m, "Display IMR:\t%08x\n",
757 for_each_pipe(dev_priv, pipe) {
758 enum intel_display_power_domain power_domain;
760 power_domain = POWER_DOMAIN_PIPE(pipe);
761 if (!intel_display_power_get_if_enabled(dev_priv,
763 seq_printf(m, "Pipe %c power disabled\n",
768 seq_printf(m, "Pipe %c stat:\t%08x\n",
770 I915_READ(PIPESTAT(pipe)));
772 intel_display_power_put(dev_priv, power_domain);
775 intel_display_power_get(dev_priv, POWER_DOMAIN_INIT);
776 seq_printf(m, "Port hotplug:\t%08x\n",
777 I915_READ(PORT_HOTPLUG_EN));
778 seq_printf(m, "DPFLIPSTAT:\t%08x\n",
779 I915_READ(VLV_DPFLIPSTAT));
780 seq_printf(m, "DPINVGTT:\t%08x\n",
781 I915_READ(DPINVGTT));
782 intel_display_power_put(dev_priv, POWER_DOMAIN_INIT);
784 for (i = 0; i < 4; i++) {
785 seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
786 i, I915_READ(GEN8_GT_IMR(i)));
787 seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
788 i, I915_READ(GEN8_GT_IIR(i)));
789 seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
790 i, I915_READ(GEN8_GT_IER(i)));
793 seq_printf(m, "PCU interrupt mask:\t%08x\n",
794 I915_READ(GEN8_PCU_IMR));
795 seq_printf(m, "PCU interrupt identity:\t%08x\n",
796 I915_READ(GEN8_PCU_IIR));
797 seq_printf(m, "PCU interrupt enable:\t%08x\n",
798 I915_READ(GEN8_PCU_IER));
799 } else if (INTEL_GEN(dev_priv) >= 8) {
800 seq_printf(m, "Master Interrupt Control:\t%08x\n",
801 I915_READ(GEN8_MASTER_IRQ));
803 for (i = 0; i < 4; i++) {
804 seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
805 i, I915_READ(GEN8_GT_IMR(i)));
806 seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
807 i, I915_READ(GEN8_GT_IIR(i)));
808 seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
809 i, I915_READ(GEN8_GT_IER(i)));
812 for_each_pipe(dev_priv, pipe) {
813 enum intel_display_power_domain power_domain;
815 power_domain = POWER_DOMAIN_PIPE(pipe);
816 if (!intel_display_power_get_if_enabled(dev_priv,
818 seq_printf(m, "Pipe %c power disabled\n",
822 seq_printf(m, "Pipe %c IMR:\t%08x\n",
824 I915_READ(GEN8_DE_PIPE_IMR(pipe)));
825 seq_printf(m, "Pipe %c IIR:\t%08x\n",
827 I915_READ(GEN8_DE_PIPE_IIR(pipe)));
828 seq_printf(m, "Pipe %c IER:\t%08x\n",
830 I915_READ(GEN8_DE_PIPE_IER(pipe)));
832 intel_display_power_put(dev_priv, power_domain);
835 seq_printf(m, "Display Engine port interrupt mask:\t%08x\n",
836 I915_READ(GEN8_DE_PORT_IMR));
837 seq_printf(m, "Display Engine port interrupt identity:\t%08x\n",
838 I915_READ(GEN8_DE_PORT_IIR));
839 seq_printf(m, "Display Engine port interrupt enable:\t%08x\n",
840 I915_READ(GEN8_DE_PORT_IER));
842 seq_printf(m, "Display Engine misc interrupt mask:\t%08x\n",
843 I915_READ(GEN8_DE_MISC_IMR));
844 seq_printf(m, "Display Engine misc interrupt identity:\t%08x\n",
845 I915_READ(GEN8_DE_MISC_IIR));
846 seq_printf(m, "Display Engine misc interrupt enable:\t%08x\n",
847 I915_READ(GEN8_DE_MISC_IER));
849 seq_printf(m, "PCU interrupt mask:\t%08x\n",
850 I915_READ(GEN8_PCU_IMR));
851 seq_printf(m, "PCU interrupt identity:\t%08x\n",
852 I915_READ(GEN8_PCU_IIR));
853 seq_printf(m, "PCU interrupt enable:\t%08x\n",
854 I915_READ(GEN8_PCU_IER));
855 } else if (IS_VALLEYVIEW(dev_priv)) {
856 seq_printf(m, "Display IER:\t%08x\n",
858 seq_printf(m, "Display IIR:\t%08x\n",
860 seq_printf(m, "Display IIR_RW:\t%08x\n",
861 I915_READ(VLV_IIR_RW));
862 seq_printf(m, "Display IMR:\t%08x\n",
864 for_each_pipe(dev_priv, pipe) {
865 enum intel_display_power_domain power_domain;
867 power_domain = POWER_DOMAIN_PIPE(pipe);
868 if (!intel_display_power_get_if_enabled(dev_priv,
870 seq_printf(m, "Pipe %c power disabled\n",
875 seq_printf(m, "Pipe %c stat:\t%08x\n",
877 I915_READ(PIPESTAT(pipe)));
878 intel_display_power_put(dev_priv, power_domain);
881 seq_printf(m, "Master IER:\t%08x\n",
882 I915_READ(VLV_MASTER_IER));
884 seq_printf(m, "Render IER:\t%08x\n",
886 seq_printf(m, "Render IIR:\t%08x\n",
888 seq_printf(m, "Render IMR:\t%08x\n",
891 seq_printf(m, "PM IER:\t\t%08x\n",
892 I915_READ(GEN6_PMIER));
893 seq_printf(m, "PM IIR:\t\t%08x\n",
894 I915_READ(GEN6_PMIIR));
895 seq_printf(m, "PM IMR:\t\t%08x\n",
896 I915_READ(GEN6_PMIMR));
898 seq_printf(m, "Port hotplug:\t%08x\n",
899 I915_READ(PORT_HOTPLUG_EN));
900 seq_printf(m, "DPFLIPSTAT:\t%08x\n",
901 I915_READ(VLV_DPFLIPSTAT));
902 seq_printf(m, "DPINVGTT:\t%08x\n",
903 I915_READ(DPINVGTT));
905 } else if (!HAS_PCH_SPLIT(dev_priv)) {
906 seq_printf(m, "Interrupt enable: %08x\n",
908 seq_printf(m, "Interrupt identity: %08x\n",
910 seq_printf(m, "Interrupt mask: %08x\n",
912 for_each_pipe(dev_priv, pipe)
913 seq_printf(m, "Pipe %c stat: %08x\n",
915 I915_READ(PIPESTAT(pipe)));
917 seq_printf(m, "North Display Interrupt enable: %08x\n",
919 seq_printf(m, "North Display Interrupt identity: %08x\n",
921 seq_printf(m, "North Display Interrupt mask: %08x\n",
923 seq_printf(m, "South Display Interrupt enable: %08x\n",
925 seq_printf(m, "South Display Interrupt identity: %08x\n",
927 seq_printf(m, "South Display Interrupt mask: %08x\n",
929 seq_printf(m, "Graphics Interrupt enable: %08x\n",
931 seq_printf(m, "Graphics Interrupt identity: %08x\n",
933 seq_printf(m, "Graphics Interrupt mask: %08x\n",
936 for_each_engine(engine, dev_priv, id) {
937 if (INTEL_GEN(dev_priv) >= 6) {
939 "Graphics Interrupt mask (%s): %08x\n",
940 engine->name, I915_READ_IMR(engine));
942 i915_ring_seqno_info(m, engine);
944 intel_runtime_pm_put(dev_priv);
949 static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
951 struct drm_i915_private *dev_priv = node_to_i915(m->private);
952 struct drm_device *dev = &dev_priv->drm;
955 ret = mutex_lock_interruptible(&dev->struct_mutex);
959 seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
960 for (i = 0; i < dev_priv->num_fence_regs; i++) {
961 struct i915_vma *vma = dev_priv->fence_regs[i].vma;
963 seq_printf(m, "Fence %d, pin count = %d, object = ",
964 i, dev_priv->fence_regs[i].pin_count);
966 seq_puts(m, "unused");
968 describe_obj(m, vma->obj);
972 mutex_unlock(&dev->struct_mutex);
976 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
977 static ssize_t gpu_state_read(struct file *file, char __user *ubuf,
978 size_t count, loff_t *pos)
980 struct i915_gpu_state *error = file->private_data;
981 struct drm_i915_error_state_buf str;
988 ret = i915_error_state_buf_init(&str, error->i915, count, *pos);
992 ret = i915_error_state_to_str(&str, error);
997 ret = simple_read_from_buffer(ubuf, count, &tmp, str.buf, str.bytes);
1001 *pos = str.start + ret;
1003 i915_error_state_buf_release(&str);
1007 static int gpu_state_release(struct inode *inode, struct file *file)
1009 i915_gpu_state_put(file->private_data);
1013 static int i915_gpu_info_open(struct inode *inode, struct file *file)
1015 struct drm_i915_private *i915 = inode->i_private;
1016 struct i915_gpu_state *gpu;
1018 intel_runtime_pm_get(i915);
1019 gpu = i915_capture_gpu_state(i915);
1020 intel_runtime_pm_put(i915);
1024 file->private_data = gpu;
1028 static const struct file_operations i915_gpu_info_fops = {
1029 .owner = THIS_MODULE,
1030 .open = i915_gpu_info_open,
1031 .read = gpu_state_read,
1032 .llseek = default_llseek,
1033 .release = gpu_state_release,
1037 i915_error_state_write(struct file *filp,
1038 const char __user *ubuf,
1042 struct i915_gpu_state *error = filp->private_data;
1047 DRM_DEBUG_DRIVER("Resetting error state\n");
1048 i915_reset_error_state(error->i915);
1053 static int i915_error_state_open(struct inode *inode, struct file *file)
1055 file->private_data = i915_first_error_state(inode->i_private);
1059 static const struct file_operations i915_error_state_fops = {
1060 .owner = THIS_MODULE,
1061 .open = i915_error_state_open,
1062 .read = gpu_state_read,
1063 .write = i915_error_state_write,
1064 .llseek = default_llseek,
1065 .release = gpu_state_release,
1070 i915_next_seqno_set(void *data, u64 val)
1072 struct drm_i915_private *dev_priv = data;
1073 struct drm_device *dev = &dev_priv->drm;
1076 ret = mutex_lock_interruptible(&dev->struct_mutex);
1080 ret = i915_gem_set_global_seqno(dev, val);
1081 mutex_unlock(&dev->struct_mutex);
1086 DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops,
1087 NULL, i915_next_seqno_set,
1090 static int i915_frequency_info(struct seq_file *m, void *unused)
1092 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1095 intel_runtime_pm_get(dev_priv);
1097 if (IS_GEN5(dev_priv)) {
1098 u16 rgvswctl = I915_READ16(MEMSWCTL);
1099 u16 rgvstat = I915_READ16(MEMSTAT_ILK);
1101 seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
1102 seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
1103 seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
1105 seq_printf(m, "Current P-state: %d\n",
1106 (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
1107 } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
1110 mutex_lock(&dev_priv->rps.hw_lock);
1111 freq_sts = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
1112 seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
1113 seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
1115 seq_printf(m, "actual GPU freq: %d MHz\n",
1116 intel_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff));
1118 seq_printf(m, "current GPU freq: %d MHz\n",
1119 intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
1121 seq_printf(m, "max GPU freq: %d MHz\n",
1122 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
1124 seq_printf(m, "min GPU freq: %d MHz\n",
1125 intel_gpu_freq(dev_priv, dev_priv->rps.min_freq));
1127 seq_printf(m, "idle GPU freq: %d MHz\n",
1128 intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq));
1131 "efficient (RPe) frequency: %d MHz\n",
1132 intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
1133 mutex_unlock(&dev_priv->rps.hw_lock);
1134 } else if (INTEL_GEN(dev_priv) >= 6) {
1135 u32 rp_state_limits;
1138 u32 rpmodectl, rpinclimit, rpdeclimit;
1139 u32 rpstat, cagf, reqf;
1140 u32 rpupei, rpcurup, rpprevup;
1141 u32 rpdownei, rpcurdown, rpprevdown;
1142 u32 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask;
1145 rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
1146 if (IS_GEN9_LP(dev_priv)) {
1147 rp_state_cap = I915_READ(BXT_RP_STATE_CAP);
1148 gt_perf_status = I915_READ(BXT_GT_PERF_STATUS);
1150 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
1151 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
1154 /* RPSTAT1 is in the GT power well */
1155 intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
1157 reqf = I915_READ(GEN6_RPNSWREQ);
1158 if (IS_GEN9(dev_priv))
1161 reqf &= ~GEN6_TURBO_DISABLE;
1162 if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
1167 reqf = intel_gpu_freq(dev_priv, reqf);
1169 rpmodectl = I915_READ(GEN6_RP_CONTROL);
1170 rpinclimit = I915_READ(GEN6_RP_UP_THRESHOLD);
1171 rpdeclimit = I915_READ(GEN6_RP_DOWN_THRESHOLD);
1173 rpstat = I915_READ(GEN6_RPSTAT1);
1174 rpupei = I915_READ(GEN6_RP_CUR_UP_EI) & GEN6_CURICONT_MASK;
1175 rpcurup = I915_READ(GEN6_RP_CUR_UP) & GEN6_CURBSYTAVG_MASK;
1176 rpprevup = I915_READ(GEN6_RP_PREV_UP) & GEN6_CURBSYTAVG_MASK;
1177 rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI) & GEN6_CURIAVG_MASK;
1178 rpcurdown = I915_READ(GEN6_RP_CUR_DOWN) & GEN6_CURBSYTAVG_MASK;
1179 rpprevdown = I915_READ(GEN6_RP_PREV_DOWN) & GEN6_CURBSYTAVG_MASK;
1180 if (IS_GEN9(dev_priv))
1181 cagf = (rpstat & GEN9_CAGF_MASK) >> GEN9_CAGF_SHIFT;
1182 else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
1183 cagf = (rpstat & HSW_CAGF_MASK) >> HSW_CAGF_SHIFT;
1185 cagf = (rpstat & GEN6_CAGF_MASK) >> GEN6_CAGF_SHIFT;
1186 cagf = intel_gpu_freq(dev_priv, cagf);
1188 intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
1190 if (IS_GEN6(dev_priv) || IS_GEN7(dev_priv)) {
1191 pm_ier = I915_READ(GEN6_PMIER);
1192 pm_imr = I915_READ(GEN6_PMIMR);
1193 pm_isr = I915_READ(GEN6_PMISR);
1194 pm_iir = I915_READ(GEN6_PMIIR);
1195 pm_mask = I915_READ(GEN6_PMINTRMSK);
1197 pm_ier = I915_READ(GEN8_GT_IER(2));
1198 pm_imr = I915_READ(GEN8_GT_IMR(2));
1199 pm_isr = I915_READ(GEN8_GT_ISR(2));
1200 pm_iir = I915_READ(GEN8_GT_IIR(2));
1201 pm_mask = I915_READ(GEN6_PMINTRMSK);
1203 seq_printf(m, "PM IER=0x%08x IMR=0x%08x ISR=0x%08x IIR=0x%08x, MASK=0x%08x\n",
1204 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask);
1205 seq_printf(m, "pm_intrmsk_mbz: 0x%08x\n",
1206 dev_priv->rps.pm_intrmsk_mbz);
1207 seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
1208 seq_printf(m, "Render p-state ratio: %d\n",
1209 (gt_perf_status & (IS_GEN9(dev_priv) ? 0x1ff00 : 0xff00)) >> 8);
1210 seq_printf(m, "Render p-state VID: %d\n",
1211 gt_perf_status & 0xff);
1212 seq_printf(m, "Render p-state limit: %d\n",
1213 rp_state_limits & 0xff);
1214 seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
1215 seq_printf(m, "RPMODECTL: 0x%08x\n", rpmodectl);
1216 seq_printf(m, "RPINCLIMIT: 0x%08x\n", rpinclimit);
1217 seq_printf(m, "RPDECLIMIT: 0x%08x\n", rpdeclimit);
1218 seq_printf(m, "RPNSWREQ: %dMHz\n", reqf);
1219 seq_printf(m, "CAGF: %dMHz\n", cagf);
1220 seq_printf(m, "RP CUR UP EI: %d (%dus)\n",
1221 rpupei, GT_PM_INTERVAL_TO_US(dev_priv, rpupei));
1222 seq_printf(m, "RP CUR UP: %d (%dus)\n",
1223 rpcurup, GT_PM_INTERVAL_TO_US(dev_priv, rpcurup));
1224 seq_printf(m, "RP PREV UP: %d (%dus)\n",
1225 rpprevup, GT_PM_INTERVAL_TO_US(dev_priv, rpprevup));
1226 seq_printf(m, "Up threshold: %d%%\n",
1227 dev_priv->rps.up_threshold);
1229 seq_printf(m, "RP CUR DOWN EI: %d (%dus)\n",
1230 rpdownei, GT_PM_INTERVAL_TO_US(dev_priv, rpdownei));
1231 seq_printf(m, "RP CUR DOWN: %d (%dus)\n",
1232 rpcurdown, GT_PM_INTERVAL_TO_US(dev_priv, rpcurdown));
1233 seq_printf(m, "RP PREV DOWN: %d (%dus)\n",
1234 rpprevdown, GT_PM_INTERVAL_TO_US(dev_priv, rpprevdown));
1235 seq_printf(m, "Down threshold: %d%%\n",
1236 dev_priv->rps.down_threshold);
1238 max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 0 :
1239 rp_state_cap >> 16) & 0xff;
1240 max_freq *= (IS_GEN9_BC(dev_priv) ? GEN9_FREQ_SCALER : 1);
1241 seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
1242 intel_gpu_freq(dev_priv, max_freq));
1244 max_freq = (rp_state_cap & 0xff00) >> 8;
1245 max_freq *= (IS_GEN9_BC(dev_priv) ? GEN9_FREQ_SCALER : 1);
1246 seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
1247 intel_gpu_freq(dev_priv, max_freq));
1249 max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 16 :
1250 rp_state_cap >> 0) & 0xff;
1251 max_freq *= (IS_GEN9_BC(dev_priv) ? GEN9_FREQ_SCALER : 1);
1252 seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
1253 intel_gpu_freq(dev_priv, max_freq));
1254 seq_printf(m, "Max overclocked frequency: %dMHz\n",
1255 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
1257 seq_printf(m, "Current freq: %d MHz\n",
1258 intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
1259 seq_printf(m, "Actual freq: %d MHz\n", cagf);
1260 seq_printf(m, "Idle freq: %d MHz\n",
1261 intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq));
1262 seq_printf(m, "Min freq: %d MHz\n",
1263 intel_gpu_freq(dev_priv, dev_priv->rps.min_freq));
1264 seq_printf(m, "Boost freq: %d MHz\n",
1265 intel_gpu_freq(dev_priv, dev_priv->rps.boost_freq));
1266 seq_printf(m, "Max freq: %d MHz\n",
1267 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
1269 "efficient (RPe) frequency: %d MHz\n",
1270 intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
1272 seq_puts(m, "no P-state info available\n");
1275 seq_printf(m, "Current CD clock frequency: %d kHz\n", dev_priv->cdclk.hw.cdclk);
1276 seq_printf(m, "Max CD clock frequency: %d kHz\n", dev_priv->max_cdclk_freq);
1277 seq_printf(m, "Max pixel clock frequency: %d kHz\n", dev_priv->max_dotclk_freq);
1279 intel_runtime_pm_put(dev_priv);
1283 static void i915_instdone_info(struct drm_i915_private *dev_priv,
1285 struct intel_instdone *instdone)
1290 seq_printf(m, "\t\tINSTDONE: 0x%08x\n",
1291 instdone->instdone);
1293 if (INTEL_GEN(dev_priv) <= 3)
1296 seq_printf(m, "\t\tSC_INSTDONE: 0x%08x\n",
1297 instdone->slice_common);
1299 if (INTEL_GEN(dev_priv) <= 6)
1302 for_each_instdone_slice_subslice(dev_priv, slice, subslice)
1303 seq_printf(m, "\t\tSAMPLER_INSTDONE[%d][%d]: 0x%08x\n",
1304 slice, subslice, instdone->sampler[slice][subslice]);
1306 for_each_instdone_slice_subslice(dev_priv, slice, subslice)
1307 seq_printf(m, "\t\tROW_INSTDONE[%d][%d]: 0x%08x\n",
1308 slice, subslice, instdone->row[slice][subslice]);
1311 static int i915_hangcheck_info(struct seq_file *m, void *unused)
1313 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1314 struct intel_engine_cs *engine;
1315 u64 acthd[I915_NUM_ENGINES];
1316 u32 seqno[I915_NUM_ENGINES];
1317 struct intel_instdone instdone;
1318 enum intel_engine_id id;
1320 if (test_bit(I915_WEDGED, &dev_priv->gpu_error.flags))
1321 seq_puts(m, "Wedged\n");
1322 if (test_bit(I915_RESET_BACKOFF, &dev_priv->gpu_error.flags))
1323 seq_puts(m, "Reset in progress: struct_mutex backoff\n");
1324 if (test_bit(I915_RESET_HANDOFF, &dev_priv->gpu_error.flags))
1325 seq_puts(m, "Reset in progress: reset handoff to waiter\n");
1326 if (waitqueue_active(&dev_priv->gpu_error.wait_queue))
1327 seq_puts(m, "Waiter holding struct mutex\n");
1328 if (waitqueue_active(&dev_priv->gpu_error.reset_queue))
1329 seq_puts(m, "struct_mutex blocked for reset\n");
1331 if (!i915.enable_hangcheck) {
1332 seq_puts(m, "Hangcheck disabled\n");
1336 intel_runtime_pm_get(dev_priv);
1338 for_each_engine(engine, dev_priv, id) {
1339 acthd[id] = intel_engine_get_active_head(engine);
1340 seqno[id] = intel_engine_get_seqno(engine);
1343 intel_engine_get_instdone(dev_priv->engine[RCS], &instdone);
1345 intel_runtime_pm_put(dev_priv);
1347 if (timer_pending(&dev_priv->gpu_error.hangcheck_work.timer))
1348 seq_printf(m, "Hangcheck active, timer fires in %dms\n",
1349 jiffies_to_msecs(dev_priv->gpu_error.hangcheck_work.timer.expires -
1351 else if (delayed_work_pending(&dev_priv->gpu_error.hangcheck_work))
1352 seq_puts(m, "Hangcheck active, work pending\n");
1354 seq_puts(m, "Hangcheck inactive\n");
1356 seq_printf(m, "GT active? %s\n", yesno(dev_priv->gt.awake));
1358 for_each_engine(engine, dev_priv, id) {
1359 struct intel_breadcrumbs *b = &engine->breadcrumbs;
1362 seq_printf(m, "%s:\n", engine->name);
1363 seq_printf(m, "\tseqno = %x [current %x, last %x], inflight %d\n",
1364 engine->hangcheck.seqno, seqno[id],
1365 intel_engine_last_submit(engine),
1366 engine->timeline->inflight_seqnos);
1367 seq_printf(m, "\twaiters? %s, fake irq active? %s, stalled? %s\n",
1368 yesno(intel_engine_has_waiter(engine)),
1369 yesno(test_bit(engine->id,
1370 &dev_priv->gpu_error.missed_irq_rings)),
1371 yesno(engine->hangcheck.stalled));
1373 spin_lock_irq(&b->rb_lock);
1374 for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) {
1375 struct intel_wait *w = rb_entry(rb, typeof(*w), node);
1377 seq_printf(m, "\t%s [%d] waiting for %x\n",
1378 w->tsk->comm, w->tsk->pid, w->seqno);
1380 spin_unlock_irq(&b->rb_lock);
1382 seq_printf(m, "\tACTHD = 0x%08llx [current 0x%08llx]\n",
1383 (long long)engine->hangcheck.acthd,
1384 (long long)acthd[id]);
1385 seq_printf(m, "\taction = %s(%d) %d ms ago\n",
1386 hangcheck_action_to_str(engine->hangcheck.action),
1387 engine->hangcheck.action,
1388 jiffies_to_msecs(jiffies -
1389 engine->hangcheck.action_timestamp));
1391 if (engine->id == RCS) {
1392 seq_puts(m, "\tinstdone read =\n");
1394 i915_instdone_info(dev_priv, m, &instdone);
1396 seq_puts(m, "\tinstdone accu =\n");
1398 i915_instdone_info(dev_priv, m,
1399 &engine->hangcheck.instdone);
1406 static int ironlake_drpc_info(struct seq_file *m)
1408 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1409 u32 rgvmodectl, rstdbyctl;
1412 rgvmodectl = I915_READ(MEMMODECTL);
1413 rstdbyctl = I915_READ(RSTDBYCTL);
1414 crstandvid = I915_READ16(CRSTANDVID);
1416 seq_printf(m, "HD boost: %s\n", yesno(rgvmodectl & MEMMODE_BOOST_EN));
1417 seq_printf(m, "Boost freq: %d\n",
1418 (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
1419 MEMMODE_BOOST_FREQ_SHIFT);
1420 seq_printf(m, "HW control enabled: %s\n",
1421 yesno(rgvmodectl & MEMMODE_HWIDLE_EN));
1422 seq_printf(m, "SW control enabled: %s\n",
1423 yesno(rgvmodectl & MEMMODE_SWMODE_EN));
1424 seq_printf(m, "Gated voltage change: %s\n",
1425 yesno(rgvmodectl & MEMMODE_RCLK_GATE));
1426 seq_printf(m, "Starting frequency: P%d\n",
1427 (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
1428 seq_printf(m, "Max P-state: P%d\n",
1429 (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
1430 seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
1431 seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
1432 seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
1433 seq_printf(m, "Render standby enabled: %s\n",
1434 yesno(!(rstdbyctl & RCX_SW_EXIT)));
1435 seq_puts(m, "Current RS state: ");
1436 switch (rstdbyctl & RSX_STATUS_MASK) {
1438 seq_puts(m, "on\n");
1440 case RSX_STATUS_RC1:
1441 seq_puts(m, "RC1\n");
1443 case RSX_STATUS_RC1E:
1444 seq_puts(m, "RC1E\n");
1446 case RSX_STATUS_RS1:
1447 seq_puts(m, "RS1\n");
1449 case RSX_STATUS_RS2:
1450 seq_puts(m, "RS2 (RC6)\n");
1452 case RSX_STATUS_RS3:
1453 seq_puts(m, "RC3 (RC6+)\n");
1456 seq_puts(m, "unknown\n");
1463 static int i915_forcewake_domains(struct seq_file *m, void *data)
1465 struct drm_i915_private *i915 = node_to_i915(m->private);
1466 struct intel_uncore_forcewake_domain *fw_domain;
1469 for_each_fw_domain(fw_domain, i915, tmp)
1470 seq_printf(m, "%s.wake_count = %u\n",
1471 intel_uncore_forcewake_domain_to_str(fw_domain->id),
1472 READ_ONCE(fw_domain->wake_count));
1477 static void print_rc6_res(struct seq_file *m,
1479 const i915_reg_t reg)
1481 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1483 seq_printf(m, "%s %u (%llu us)\n",
1484 title, I915_READ(reg),
1485 intel_rc6_residency_us(dev_priv, reg));
1488 static int vlv_drpc_info(struct seq_file *m)
1490 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1491 u32 rpmodectl1, rcctl1, pw_status;
1493 pw_status = I915_READ(VLV_GTLC_PW_STATUS);
1494 rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
1495 rcctl1 = I915_READ(GEN6_RC_CONTROL);
1497 seq_printf(m, "Video Turbo Mode: %s\n",
1498 yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
1499 seq_printf(m, "Turbo enabled: %s\n",
1500 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1501 seq_printf(m, "HW control enabled: %s\n",
1502 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1503 seq_printf(m, "SW control enabled: %s\n",
1504 yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
1505 GEN6_RP_MEDIA_SW_MODE));
1506 seq_printf(m, "RC6 Enabled: %s\n",
1507 yesno(rcctl1 & (GEN7_RC_CTL_TO_MODE |
1508 GEN6_RC_CTL_EI_MODE(1))));
1509 seq_printf(m, "Render Power Well: %s\n",
1510 (pw_status & VLV_GTLC_PW_RENDER_STATUS_MASK) ? "Up" : "Down");
1511 seq_printf(m, "Media Power Well: %s\n",
1512 (pw_status & VLV_GTLC_PW_MEDIA_STATUS_MASK) ? "Up" : "Down");
1514 print_rc6_res(m, "Render RC6 residency since boot:", VLV_GT_RENDER_RC6);
1515 print_rc6_res(m, "Media RC6 residency since boot:", VLV_GT_MEDIA_RC6);
1517 return i915_forcewake_domains(m, NULL);
1520 static int gen6_drpc_info(struct seq_file *m)
1522 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1523 u32 rpmodectl1, gt_core_status, rcctl1, rc6vids = 0;
1524 u32 gen9_powergate_enable = 0, gen9_powergate_status = 0;
1525 unsigned forcewake_count;
1528 forcewake_count = READ_ONCE(dev_priv->uncore.fw_domain[FW_DOMAIN_ID_RENDER].wake_count);
1529 if (forcewake_count) {
1530 seq_puts(m, "RC information inaccurate because somebody "
1531 "holds a forcewake reference \n");
1533 /* NB: we cannot use forcewake, else we read the wrong values */
1534 while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
1536 seq_printf(m, "RC information accurate: %s\n", yesno(count < 51));
1539 gt_core_status = I915_READ_FW(GEN6_GT_CORE_STATUS);
1540 trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true);
1542 rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
1543 rcctl1 = I915_READ(GEN6_RC_CONTROL);
1544 if (INTEL_GEN(dev_priv) >= 9) {
1545 gen9_powergate_enable = I915_READ(GEN9_PG_ENABLE);
1546 gen9_powergate_status = I915_READ(GEN9_PWRGT_DOMAIN_STATUS);
1549 mutex_lock(&dev_priv->rps.hw_lock);
1550 sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, &rc6vids);
1551 mutex_unlock(&dev_priv->rps.hw_lock);
1553 seq_printf(m, "Video Turbo Mode: %s\n",
1554 yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
1555 seq_printf(m, "HW control enabled: %s\n",
1556 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1557 seq_printf(m, "SW control enabled: %s\n",
1558 yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
1559 GEN6_RP_MEDIA_SW_MODE));
1560 seq_printf(m, "RC1e Enabled: %s\n",
1561 yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
1562 seq_printf(m, "RC6 Enabled: %s\n",
1563 yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
1564 if (INTEL_GEN(dev_priv) >= 9) {
1565 seq_printf(m, "Render Well Gating Enabled: %s\n",
1566 yesno(gen9_powergate_enable & GEN9_RENDER_PG_ENABLE));
1567 seq_printf(m, "Media Well Gating Enabled: %s\n",
1568 yesno(gen9_powergate_enable & GEN9_MEDIA_PG_ENABLE));
1570 seq_printf(m, "Deep RC6 Enabled: %s\n",
1571 yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
1572 seq_printf(m, "Deepest RC6 Enabled: %s\n",
1573 yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
1574 seq_puts(m, "Current RC state: ");
1575 switch (gt_core_status & GEN6_RCn_MASK) {
1577 if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
1578 seq_puts(m, "Core Power Down\n");
1580 seq_puts(m, "on\n");
1583 seq_puts(m, "RC3\n");
1586 seq_puts(m, "RC6\n");
1589 seq_puts(m, "RC7\n");
1592 seq_puts(m, "Unknown\n");
1596 seq_printf(m, "Core Power Down: %s\n",
1597 yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
1598 if (INTEL_GEN(dev_priv) >= 9) {
1599 seq_printf(m, "Render Power Well: %s\n",
1600 (gen9_powergate_status &
1601 GEN9_PWRGT_RENDER_STATUS_MASK) ? "Up" : "Down");
1602 seq_printf(m, "Media Power Well: %s\n",
1603 (gen9_powergate_status &
1604 GEN9_PWRGT_MEDIA_STATUS_MASK) ? "Up" : "Down");
1607 /* Not exactly sure what this is */
1608 print_rc6_res(m, "RC6 \"Locked to RPn\" residency since boot:",
1609 GEN6_GT_GFX_RC6_LOCKED);
1610 print_rc6_res(m, "RC6 residency since boot:", GEN6_GT_GFX_RC6);
1611 print_rc6_res(m, "RC6+ residency since boot:", GEN6_GT_GFX_RC6p);
1612 print_rc6_res(m, "RC6++ residency since boot:", GEN6_GT_GFX_RC6pp);
1614 seq_printf(m, "RC6 voltage: %dmV\n",
1615 GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
1616 seq_printf(m, "RC6+ voltage: %dmV\n",
1617 GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
1618 seq_printf(m, "RC6++ voltage: %dmV\n",
1619 GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
1620 return i915_forcewake_domains(m, NULL);
1623 static int i915_drpc_info(struct seq_file *m, void *unused)
1625 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1628 intel_runtime_pm_get(dev_priv);
1630 if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
1631 err = vlv_drpc_info(m);
1632 else if (INTEL_GEN(dev_priv) >= 6)
1633 err = gen6_drpc_info(m);
1635 err = ironlake_drpc_info(m);
1637 intel_runtime_pm_put(dev_priv);
1642 static int i915_frontbuffer_tracking(struct seq_file *m, void *unused)
1644 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1646 seq_printf(m, "FB tracking busy bits: 0x%08x\n",
1647 dev_priv->fb_tracking.busy_bits);
1649 seq_printf(m, "FB tracking flip bits: 0x%08x\n",
1650 dev_priv->fb_tracking.flip_bits);
1655 static int i915_fbc_status(struct seq_file *m, void *unused)
1657 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1659 if (!HAS_FBC(dev_priv)) {
1660 seq_puts(m, "FBC unsupported on this chipset\n");
1664 intel_runtime_pm_get(dev_priv);
1665 mutex_lock(&dev_priv->fbc.lock);
1667 if (intel_fbc_is_active(dev_priv))
1668 seq_puts(m, "FBC enabled\n");
1670 seq_printf(m, "FBC disabled: %s\n",
1671 dev_priv->fbc.no_fbc_reason);
1673 if (intel_fbc_is_active(dev_priv) && INTEL_GEN(dev_priv) >= 7) {
1674 uint32_t mask = INTEL_GEN(dev_priv) >= 8 ?
1675 BDW_FBC_COMPRESSION_MASK :
1676 IVB_FBC_COMPRESSION_MASK;
1677 seq_printf(m, "Compressing: %s\n",
1678 yesno(I915_READ(FBC_STATUS2) & mask));
1681 mutex_unlock(&dev_priv->fbc.lock);
1682 intel_runtime_pm_put(dev_priv);
1687 static int i915_fbc_fc_get(void *data, u64 *val)
1689 struct drm_i915_private *dev_priv = data;
1691 if (INTEL_GEN(dev_priv) < 7 || !HAS_FBC(dev_priv))
1694 *val = dev_priv->fbc.false_color;
1699 static int i915_fbc_fc_set(void *data, u64 val)
1701 struct drm_i915_private *dev_priv = data;
1704 if (INTEL_GEN(dev_priv) < 7 || !HAS_FBC(dev_priv))
1707 mutex_lock(&dev_priv->fbc.lock);
1709 reg = I915_READ(ILK_DPFC_CONTROL);
1710 dev_priv->fbc.false_color = val;
1712 I915_WRITE(ILK_DPFC_CONTROL, val ?
1713 (reg | FBC_CTL_FALSE_COLOR) :
1714 (reg & ~FBC_CTL_FALSE_COLOR));
1716 mutex_unlock(&dev_priv->fbc.lock);
1720 DEFINE_SIMPLE_ATTRIBUTE(i915_fbc_fc_fops,
1721 i915_fbc_fc_get, i915_fbc_fc_set,
1724 static int i915_ips_status(struct seq_file *m, void *unused)
1726 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1728 if (!HAS_IPS(dev_priv)) {
1729 seq_puts(m, "not supported\n");
1733 intel_runtime_pm_get(dev_priv);
1735 seq_printf(m, "Enabled by kernel parameter: %s\n",
1736 yesno(i915.enable_ips));
1738 if (INTEL_GEN(dev_priv) >= 8) {
1739 seq_puts(m, "Currently: unknown\n");
1741 if (I915_READ(IPS_CTL) & IPS_ENABLE)
1742 seq_puts(m, "Currently: enabled\n");
1744 seq_puts(m, "Currently: disabled\n");
1747 intel_runtime_pm_put(dev_priv);
1752 static int i915_sr_status(struct seq_file *m, void *unused)
1754 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1755 bool sr_enabled = false;
1757 intel_runtime_pm_get(dev_priv);
1758 intel_display_power_get(dev_priv, POWER_DOMAIN_INIT);
1760 if (INTEL_GEN(dev_priv) >= 9)
1761 /* no global SR status; inspect per-plane WM */;
1762 else if (HAS_PCH_SPLIT(dev_priv))
1763 sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
1764 else if (IS_I965GM(dev_priv) || IS_G4X(dev_priv) ||
1765 IS_I945G(dev_priv) || IS_I945GM(dev_priv))
1766 sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
1767 else if (IS_I915GM(dev_priv))
1768 sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
1769 else if (IS_PINEVIEW(dev_priv))
1770 sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
1771 else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
1772 sr_enabled = I915_READ(FW_BLC_SELF_VLV) & FW_CSPWRDWNEN;
1774 intel_display_power_put(dev_priv, POWER_DOMAIN_INIT);
1775 intel_runtime_pm_put(dev_priv);
1777 seq_printf(m, "self-refresh: %s\n", enableddisabled(sr_enabled));
1782 static int i915_emon_status(struct seq_file *m, void *unused)
1784 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1785 struct drm_device *dev = &dev_priv->drm;
1786 unsigned long temp, chipset, gfx;
1789 if (!IS_GEN5(dev_priv))
1792 ret = mutex_lock_interruptible(&dev->struct_mutex);
1796 temp = i915_mch_val(dev_priv);
1797 chipset = i915_chipset_val(dev_priv);
1798 gfx = i915_gfx_val(dev_priv);
1799 mutex_unlock(&dev->struct_mutex);
1801 seq_printf(m, "GMCH temp: %ld\n", temp);
1802 seq_printf(m, "Chipset power: %ld\n", chipset);
1803 seq_printf(m, "GFX power: %ld\n", gfx);
1804 seq_printf(m, "Total power: %ld\n", chipset + gfx);
1809 static int i915_ring_freq_table(struct seq_file *m, void *unused)
1811 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1813 int gpu_freq, ia_freq;
1814 unsigned int max_gpu_freq, min_gpu_freq;
1816 if (!HAS_LLC(dev_priv)) {
1817 seq_puts(m, "unsupported on this chipset\n");
1821 intel_runtime_pm_get(dev_priv);
1823 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
1827 if (IS_GEN9_BC(dev_priv)) {
1828 /* Convert GT frequency to 50 HZ units */
1830 dev_priv->rps.min_freq_softlimit / GEN9_FREQ_SCALER;
1832 dev_priv->rps.max_freq_softlimit / GEN9_FREQ_SCALER;
1834 min_gpu_freq = dev_priv->rps.min_freq_softlimit;
1835 max_gpu_freq = dev_priv->rps.max_freq_softlimit;
1838 seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
1840 for (gpu_freq = min_gpu_freq; gpu_freq <= max_gpu_freq; gpu_freq++) {
1842 sandybridge_pcode_read(dev_priv,
1843 GEN6_PCODE_READ_MIN_FREQ_TABLE,
1845 seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
1846 intel_gpu_freq(dev_priv, (gpu_freq *
1847 (IS_GEN9_BC(dev_priv) ?
1848 GEN9_FREQ_SCALER : 1))),
1849 ((ia_freq >> 0) & 0xff) * 100,
1850 ((ia_freq >> 8) & 0xff) * 100);
1853 mutex_unlock(&dev_priv->rps.hw_lock);
1856 intel_runtime_pm_put(dev_priv);
1860 static int i915_opregion(struct seq_file *m, void *unused)
1862 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1863 struct drm_device *dev = &dev_priv->drm;
1864 struct intel_opregion *opregion = &dev_priv->opregion;
1867 ret = mutex_lock_interruptible(&dev->struct_mutex);
1871 if (opregion->header)
1872 seq_write(m, opregion->header, OPREGION_SIZE);
1874 mutex_unlock(&dev->struct_mutex);
1880 static int i915_vbt(struct seq_file *m, void *unused)
1882 struct intel_opregion *opregion = &node_to_i915(m->private)->opregion;
1885 seq_write(m, opregion->vbt, opregion->vbt_size);
1890 static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
1892 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1893 struct drm_device *dev = &dev_priv->drm;
1894 struct intel_framebuffer *fbdev_fb = NULL;
1895 struct drm_framebuffer *drm_fb;
1898 ret = mutex_lock_interruptible(&dev->struct_mutex);
1902 #ifdef CONFIG_DRM_FBDEV_EMULATION
1903 if (dev_priv->fbdev) {
1904 fbdev_fb = to_intel_framebuffer(dev_priv->fbdev->helper.fb);
1906 seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ",
1907 fbdev_fb->base.width,
1908 fbdev_fb->base.height,
1909 fbdev_fb->base.format->depth,
1910 fbdev_fb->base.format->cpp[0] * 8,
1911 fbdev_fb->base.modifier,
1912 drm_framebuffer_read_refcount(&fbdev_fb->base));
1913 describe_obj(m, fbdev_fb->obj);
1918 mutex_lock(&dev->mode_config.fb_lock);
1919 drm_for_each_fb(drm_fb, dev) {
1920 struct intel_framebuffer *fb = to_intel_framebuffer(drm_fb);
1924 seq_printf(m, "user size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ",
1927 fb->base.format->depth,
1928 fb->base.format->cpp[0] * 8,
1930 drm_framebuffer_read_refcount(&fb->base));
1931 describe_obj(m, fb->obj);
1934 mutex_unlock(&dev->mode_config.fb_lock);
1935 mutex_unlock(&dev->struct_mutex);
1940 static void describe_ctx_ring(struct seq_file *m, struct intel_ring *ring)
1942 seq_printf(m, " (ringbuffer, space: %d, head: %u, tail: %u)",
1943 ring->space, ring->head, ring->tail);
1946 static int i915_context_status(struct seq_file *m, void *unused)
1948 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1949 struct drm_device *dev = &dev_priv->drm;
1950 struct intel_engine_cs *engine;
1951 struct i915_gem_context *ctx;
1952 enum intel_engine_id id;
1955 ret = mutex_lock_interruptible(&dev->struct_mutex);
1959 list_for_each_entry(ctx, &dev_priv->context_list, link) {
1960 seq_printf(m, "HW context %u ", ctx->hw_id);
1962 struct task_struct *task;
1964 task = get_pid_task(ctx->pid, PIDTYPE_PID);
1966 seq_printf(m, "(%s [%d]) ",
1967 task->comm, task->pid);
1968 put_task_struct(task);
1970 } else if (IS_ERR(ctx->file_priv)) {
1971 seq_puts(m, "(deleted) ");
1973 seq_puts(m, "(kernel) ");
1976 seq_putc(m, ctx->remap_slice ? 'R' : 'r');
1979 for_each_engine(engine, dev_priv, id) {
1980 struct intel_context *ce = &ctx->engine[engine->id];
1982 seq_printf(m, "%s: ", engine->name);
1983 seq_putc(m, ce->initialised ? 'I' : 'i');
1985 describe_obj(m, ce->state->obj);
1987 describe_ctx_ring(m, ce->ring);
1994 mutex_unlock(&dev->struct_mutex);
1999 static void i915_dump_lrc_obj(struct seq_file *m,
2000 struct i915_gem_context *ctx,
2001 struct intel_engine_cs *engine)
2003 struct i915_vma *vma = ctx->engine[engine->id].state;
2007 seq_printf(m, "CONTEXT: %s %u\n", engine->name, ctx->hw_id);
2010 seq_puts(m, "\tFake context\n");
2014 if (vma->flags & I915_VMA_GLOBAL_BIND)
2015 seq_printf(m, "\tBound in GGTT at 0x%08x\n",
2016 i915_ggtt_offset(vma));
2018 if (i915_gem_object_pin_pages(vma->obj)) {
2019 seq_puts(m, "\tFailed to get pages for context object\n\n");
2023 page = i915_gem_object_get_page(vma->obj, LRC_STATE_PN);
2025 u32 *reg_state = kmap_atomic(page);
2027 for (j = 0; j < 0x600 / sizeof(u32) / 4; j += 4) {
2029 "\t[0x%04x] 0x%08x 0x%08x 0x%08x 0x%08x\n",
2031 reg_state[j], reg_state[j + 1],
2032 reg_state[j + 2], reg_state[j + 3]);
2034 kunmap_atomic(reg_state);
2037 i915_gem_object_unpin_pages(vma->obj);
2041 static int i915_dump_lrc(struct seq_file *m, void *unused)
2043 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2044 struct drm_device *dev = &dev_priv->drm;
2045 struct intel_engine_cs *engine;
2046 struct i915_gem_context *ctx;
2047 enum intel_engine_id id;
2050 if (!i915.enable_execlists) {
2051 seq_printf(m, "Logical Ring Contexts are disabled\n");
2055 ret = mutex_lock_interruptible(&dev->struct_mutex);
2059 list_for_each_entry(ctx, &dev_priv->context_list, link)
2060 for_each_engine(engine, dev_priv, id)
2061 i915_dump_lrc_obj(m, ctx, engine);
2063 mutex_unlock(&dev->struct_mutex);
2068 static const char *swizzle_string(unsigned swizzle)
2071 case I915_BIT_6_SWIZZLE_NONE:
2073 case I915_BIT_6_SWIZZLE_9:
2075 case I915_BIT_6_SWIZZLE_9_10:
2076 return "bit9/bit10";
2077 case I915_BIT_6_SWIZZLE_9_11:
2078 return "bit9/bit11";
2079 case I915_BIT_6_SWIZZLE_9_10_11:
2080 return "bit9/bit10/bit11";
2081 case I915_BIT_6_SWIZZLE_9_17:
2082 return "bit9/bit17";
2083 case I915_BIT_6_SWIZZLE_9_10_17:
2084 return "bit9/bit10/bit17";
2085 case I915_BIT_6_SWIZZLE_UNKNOWN:
2092 static int i915_swizzle_info(struct seq_file *m, void *data)
2094 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2096 intel_runtime_pm_get(dev_priv);
2098 seq_printf(m, "bit6 swizzle for X-tiling = %s\n",
2099 swizzle_string(dev_priv->mm.bit_6_swizzle_x));
2100 seq_printf(m, "bit6 swizzle for Y-tiling = %s\n",
2101 swizzle_string(dev_priv->mm.bit_6_swizzle_y));
2103 if (IS_GEN3(dev_priv) || IS_GEN4(dev_priv)) {
2104 seq_printf(m, "DDC = 0x%08x\n",
2106 seq_printf(m, "DDC2 = 0x%08x\n",
2108 seq_printf(m, "C0DRB3 = 0x%04x\n",
2109 I915_READ16(C0DRB3));
2110 seq_printf(m, "C1DRB3 = 0x%04x\n",
2111 I915_READ16(C1DRB3));
2112 } else if (INTEL_GEN(dev_priv) >= 6) {
2113 seq_printf(m, "MAD_DIMM_C0 = 0x%08x\n",
2114 I915_READ(MAD_DIMM_C0));
2115 seq_printf(m, "MAD_DIMM_C1 = 0x%08x\n",
2116 I915_READ(MAD_DIMM_C1));
2117 seq_printf(m, "MAD_DIMM_C2 = 0x%08x\n",
2118 I915_READ(MAD_DIMM_C2));
2119 seq_printf(m, "TILECTL = 0x%08x\n",
2120 I915_READ(TILECTL));
2121 if (INTEL_GEN(dev_priv) >= 8)
2122 seq_printf(m, "GAMTARBMODE = 0x%08x\n",
2123 I915_READ(GAMTARBMODE));
2125 seq_printf(m, "ARB_MODE = 0x%08x\n",
2126 I915_READ(ARB_MODE));
2127 seq_printf(m, "DISP_ARB_CTL = 0x%08x\n",
2128 I915_READ(DISP_ARB_CTL));
2131 if (dev_priv->quirks & QUIRK_PIN_SWIZZLED_PAGES)
2132 seq_puts(m, "L-shaped memory detected\n");
2134 intel_runtime_pm_put(dev_priv);
2139 static int per_file_ctx(int id, void *ptr, void *data)
2141 struct i915_gem_context *ctx = ptr;
2142 struct seq_file *m = data;
2143 struct i915_hw_ppgtt *ppgtt = ctx->ppgtt;
2146 seq_printf(m, " no ppgtt for context %d\n",
2151 if (i915_gem_context_is_default(ctx))
2152 seq_puts(m, " default context:\n");
2154 seq_printf(m, " context %d:\n", ctx->user_handle);
2155 ppgtt->debug_dump(ppgtt, m);
2160 static void gen8_ppgtt_info(struct seq_file *m,
2161 struct drm_i915_private *dev_priv)
2163 struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
2164 struct intel_engine_cs *engine;
2165 enum intel_engine_id id;
2171 for_each_engine(engine, dev_priv, id) {
2172 seq_printf(m, "%s\n", engine->name);
2173 for (i = 0; i < 4; i++) {
2174 u64 pdp = I915_READ(GEN8_RING_PDP_UDW(engine, i));
2176 pdp |= I915_READ(GEN8_RING_PDP_LDW(engine, i));
2177 seq_printf(m, "\tPDP%d 0x%016llx\n", i, pdp);
2182 static void gen6_ppgtt_info(struct seq_file *m,
2183 struct drm_i915_private *dev_priv)
2185 struct intel_engine_cs *engine;
2186 enum intel_engine_id id;
2188 if (IS_GEN6(dev_priv))
2189 seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(GFX_MODE));
2191 for_each_engine(engine, dev_priv, id) {
2192 seq_printf(m, "%s\n", engine->name);
2193 if (IS_GEN7(dev_priv))
2194 seq_printf(m, "GFX_MODE: 0x%08x\n",
2195 I915_READ(RING_MODE_GEN7(engine)));
2196 seq_printf(m, "PP_DIR_BASE: 0x%08x\n",
2197 I915_READ(RING_PP_DIR_BASE(engine)));
2198 seq_printf(m, "PP_DIR_BASE_READ: 0x%08x\n",
2199 I915_READ(RING_PP_DIR_BASE_READ(engine)));
2200 seq_printf(m, "PP_DIR_DCLV: 0x%08x\n",
2201 I915_READ(RING_PP_DIR_DCLV(engine)));
2203 if (dev_priv->mm.aliasing_ppgtt) {
2204 struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
2206 seq_puts(m, "aliasing PPGTT:\n");
2207 seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd.base.ggtt_offset);
2209 ppgtt->debug_dump(ppgtt, m);
2212 seq_printf(m, "ECOCHK: 0x%08x\n", I915_READ(GAM_ECOCHK));
2215 static int i915_ppgtt_info(struct seq_file *m, void *data)
2217 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2218 struct drm_device *dev = &dev_priv->drm;
2219 struct drm_file *file;
2222 mutex_lock(&dev->filelist_mutex);
2223 ret = mutex_lock_interruptible(&dev->struct_mutex);
2227 intel_runtime_pm_get(dev_priv);
2229 if (INTEL_GEN(dev_priv) >= 8)
2230 gen8_ppgtt_info(m, dev_priv);
2231 else if (INTEL_GEN(dev_priv) >= 6)
2232 gen6_ppgtt_info(m, dev_priv);
2234 list_for_each_entry_reverse(file, &dev->filelist, lhead) {
2235 struct drm_i915_file_private *file_priv = file->driver_priv;
2236 struct task_struct *task;
2238 task = get_pid_task(file->pid, PIDTYPE_PID);
2243 seq_printf(m, "\nproc: %s\n", task->comm);
2244 put_task_struct(task);
2245 idr_for_each(&file_priv->context_idr, per_file_ctx,
2246 (void *)(unsigned long)m);
2250 intel_runtime_pm_put(dev_priv);
2251 mutex_unlock(&dev->struct_mutex);
2253 mutex_unlock(&dev->filelist_mutex);
2257 static int count_irq_waiters(struct drm_i915_private *i915)
2259 struct intel_engine_cs *engine;
2260 enum intel_engine_id id;
2263 for_each_engine(engine, i915, id)
2264 count += intel_engine_has_waiter(engine);
2269 static const char *rps_power_to_str(unsigned int power)
2271 static const char * const strings[] = {
2272 [LOW_POWER] = "low power",
2273 [BETWEEN] = "mixed",
2274 [HIGH_POWER] = "high power",
2277 if (power >= ARRAY_SIZE(strings) || !strings[power])
2280 return strings[power];
2283 static int i915_rps_boost_info(struct seq_file *m, void *data)
2285 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2286 struct drm_device *dev = &dev_priv->drm;
2287 struct drm_file *file;
2289 seq_printf(m, "RPS enabled? %d\n", dev_priv->rps.enabled);
2290 seq_printf(m, "GPU busy? %s [%d requests]\n",
2291 yesno(dev_priv->gt.awake), dev_priv->gt.active_requests);
2292 seq_printf(m, "CPU waiting? %d\n", count_irq_waiters(dev_priv));
2293 seq_printf(m, "Frequency requested %d\n",
2294 intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
2295 seq_printf(m, " min hard:%d, soft:%d; max soft:%d, hard:%d\n",
2296 intel_gpu_freq(dev_priv, dev_priv->rps.min_freq),
2297 intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit),
2298 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit),
2299 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
2300 seq_printf(m, " idle:%d, efficient:%d, boost:%d\n",
2301 intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq),
2302 intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq),
2303 intel_gpu_freq(dev_priv, dev_priv->rps.boost_freq));
2305 mutex_lock(&dev->filelist_mutex);
2306 spin_lock(&dev_priv->rps.client_lock);
2307 list_for_each_entry_reverse(file, &dev->filelist, lhead) {
2308 struct drm_i915_file_private *file_priv = file->driver_priv;
2309 struct task_struct *task;
2312 task = pid_task(file->pid, PIDTYPE_PID);
2313 seq_printf(m, "%s [%d]: %d boosts%s\n",
2314 task ? task->comm : "<unknown>",
2315 task ? task->pid : -1,
2316 file_priv->rps.boosts,
2317 list_empty(&file_priv->rps.link) ? "" : ", active");
2320 seq_printf(m, "Kernel (anonymous) boosts: %d\n", dev_priv->rps.boosts);
2321 spin_unlock(&dev_priv->rps.client_lock);
2322 mutex_unlock(&dev->filelist_mutex);
2324 if (INTEL_GEN(dev_priv) >= 6 &&
2325 dev_priv->rps.enabled &&
2326 dev_priv->gt.active_requests) {
2328 u32 rpdown, rpdownei;
2330 intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
2331 rpup = I915_READ_FW(GEN6_RP_CUR_UP) & GEN6_RP_EI_MASK;
2332 rpupei = I915_READ_FW(GEN6_RP_CUR_UP_EI) & GEN6_RP_EI_MASK;
2333 rpdown = I915_READ_FW(GEN6_RP_CUR_DOWN) & GEN6_RP_EI_MASK;
2334 rpdownei = I915_READ_FW(GEN6_RP_CUR_DOWN_EI) & GEN6_RP_EI_MASK;
2335 intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
2337 seq_printf(m, "\nRPS Autotuning (current \"%s\" window):\n",
2338 rps_power_to_str(dev_priv->rps.power));
2339 seq_printf(m, " Avg. up: %d%% [above threshold? %d%%]\n",
2340 rpup && rpupei ? 100 * rpup / rpupei : 0,
2341 dev_priv->rps.up_threshold);
2342 seq_printf(m, " Avg. down: %d%% [below threshold? %d%%]\n",
2343 rpdown && rpdownei ? 100 * rpdown / rpdownei : 0,
2344 dev_priv->rps.down_threshold);
2346 seq_puts(m, "\nRPS Autotuning inactive\n");
2352 static int i915_llc(struct seq_file *m, void *data)
2354 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2355 const bool edram = INTEL_GEN(dev_priv) > 8;
2357 seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(dev_priv)));
2358 seq_printf(m, "%s: %lluMB\n", edram ? "eDRAM" : "eLLC",
2359 intel_uncore_edram_size(dev_priv)/1024/1024);
2364 static int i915_huc_load_status_info(struct seq_file *m, void *data)
2366 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2367 struct intel_uc_fw *huc_fw = &dev_priv->huc.fw;
2369 if (!HAS_HUC_UCODE(dev_priv))
2372 seq_puts(m, "HuC firmware status:\n");
2373 seq_printf(m, "\tpath: %s\n", huc_fw->path);
2374 seq_printf(m, "\tfetch: %s\n",
2375 intel_uc_fw_status_repr(huc_fw->fetch_status));
2376 seq_printf(m, "\tload: %s\n",
2377 intel_uc_fw_status_repr(huc_fw->load_status));
2378 seq_printf(m, "\tversion wanted: %d.%d\n",
2379 huc_fw->major_ver_wanted, huc_fw->minor_ver_wanted);
2380 seq_printf(m, "\tversion found: %d.%d\n",
2381 huc_fw->major_ver_found, huc_fw->minor_ver_found);
2382 seq_printf(m, "\theader: offset is %d; size = %d\n",
2383 huc_fw->header_offset, huc_fw->header_size);
2384 seq_printf(m, "\tuCode: offset is %d; size = %d\n",
2385 huc_fw->ucode_offset, huc_fw->ucode_size);
2386 seq_printf(m, "\tRSA: offset is %d; size = %d\n",
2387 huc_fw->rsa_offset, huc_fw->rsa_size);
2389 intel_runtime_pm_get(dev_priv);
2390 seq_printf(m, "\nHuC status 0x%08x:\n", I915_READ(HUC_STATUS2));
2391 intel_runtime_pm_put(dev_priv);
2396 static int i915_guc_load_status_info(struct seq_file *m, void *data)
2398 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2399 struct intel_uc_fw *guc_fw = &dev_priv->guc.fw;
2402 if (!HAS_GUC_UCODE(dev_priv))
2405 seq_printf(m, "GuC firmware status:\n");
2406 seq_printf(m, "\tpath: %s\n",
2408 seq_printf(m, "\tfetch: %s\n",
2409 intel_uc_fw_status_repr(guc_fw->fetch_status));
2410 seq_printf(m, "\tload: %s\n",
2411 intel_uc_fw_status_repr(guc_fw->load_status));
2412 seq_printf(m, "\tversion wanted: %d.%d\n",
2413 guc_fw->major_ver_wanted, guc_fw->minor_ver_wanted);
2414 seq_printf(m, "\tversion found: %d.%d\n",
2415 guc_fw->major_ver_found, guc_fw->minor_ver_found);
2416 seq_printf(m, "\theader: offset is %d; size = %d\n",
2417 guc_fw->header_offset, guc_fw->header_size);
2418 seq_printf(m, "\tuCode: offset is %d; size = %d\n",
2419 guc_fw->ucode_offset, guc_fw->ucode_size);
2420 seq_printf(m, "\tRSA: offset is %d; size = %d\n",
2421 guc_fw->rsa_offset, guc_fw->rsa_size);
2423 intel_runtime_pm_get(dev_priv);
2425 tmp = I915_READ(GUC_STATUS);
2427 seq_printf(m, "\nGuC status 0x%08x:\n", tmp);
2428 seq_printf(m, "\tBootrom status = 0x%x\n",
2429 (tmp & GS_BOOTROM_MASK) >> GS_BOOTROM_SHIFT);
2430 seq_printf(m, "\tuKernel status = 0x%x\n",
2431 (tmp & GS_UKERNEL_MASK) >> GS_UKERNEL_SHIFT);
2432 seq_printf(m, "\tMIA Core status = 0x%x\n",
2433 (tmp & GS_MIA_MASK) >> GS_MIA_SHIFT);
2434 seq_puts(m, "\nScratch registers:\n");
2435 for (i = 0; i < 16; i++)
2436 seq_printf(m, "\t%2d: \t0x%x\n", i, I915_READ(SOFT_SCRATCH(i)));
2438 intel_runtime_pm_put(dev_priv);
2443 static void i915_guc_log_info(struct seq_file *m,
2444 struct drm_i915_private *dev_priv)
2446 struct intel_guc *guc = &dev_priv->guc;
2448 seq_puts(m, "\nGuC logging stats:\n");
2450 seq_printf(m, "\tISR: flush count %10u, overflow count %10u\n",
2451 guc->log.flush_count[GUC_ISR_LOG_BUFFER],
2452 guc->log.total_overflow_count[GUC_ISR_LOG_BUFFER]);
2454 seq_printf(m, "\tDPC: flush count %10u, overflow count %10u\n",
2455 guc->log.flush_count[GUC_DPC_LOG_BUFFER],
2456 guc->log.total_overflow_count[GUC_DPC_LOG_BUFFER]);
2458 seq_printf(m, "\tCRASH: flush count %10u, overflow count %10u\n",
2459 guc->log.flush_count[GUC_CRASH_DUMP_LOG_BUFFER],
2460 guc->log.total_overflow_count[GUC_CRASH_DUMP_LOG_BUFFER]);
2462 seq_printf(m, "\tTotal flush interrupt count: %u\n",
2463 guc->log.flush_interrupt_count);
2465 seq_printf(m, "\tCapture miss count: %u\n",
2466 guc->log.capture_miss_count);
2469 static void i915_guc_client_info(struct seq_file *m,
2470 struct drm_i915_private *dev_priv,
2471 struct i915_guc_client *client)
2473 struct intel_engine_cs *engine;
2474 enum intel_engine_id id;
2477 seq_printf(m, "\tPriority %d, GuC stage index: %u, PD offset 0x%x\n",
2478 client->priority, client->stage_id, client->proc_desc_offset);
2479 seq_printf(m, "\tDoorbell id %d, offset: 0x%lx, cookie 0x%x\n",
2480 client->doorbell_id, client->doorbell_offset, client->doorbell_cookie);
2481 seq_printf(m, "\tWQ size %d, offset: 0x%x, tail %d\n",
2482 client->wq_size, client->wq_offset, client->wq_tail);
2484 seq_printf(m, "\tWork queue full: %u\n", client->no_wq_space);
2485 seq_printf(m, "\tFailed doorbell: %u\n", client->b_fail);
2486 seq_printf(m, "\tLast submission result: %d\n", client->retcode);
2488 for_each_engine(engine, dev_priv, id) {
2489 u64 submissions = client->submissions[id];
2491 seq_printf(m, "\tSubmissions: %llu %s\n",
2492 submissions, engine->name);
2494 seq_printf(m, "\tTotal: %llu\n", tot);
2497 static int i915_guc_info(struct seq_file *m, void *data)
2499 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2500 const struct intel_guc *guc = &dev_priv->guc;
2501 struct intel_engine_cs *engine;
2502 enum intel_engine_id id;
2505 if (!guc->execbuf_client) {
2506 seq_printf(m, "GuC submission %s\n",
2507 HAS_GUC_SCHED(dev_priv) ?
2513 seq_printf(m, "Doorbell map:\n");
2514 seq_printf(m, "\t%*pb\n", GUC_NUM_DOORBELLS, guc->doorbell_bitmap);
2515 seq_printf(m, "Doorbell next cacheline: 0x%x\n\n", guc->db_cacheline);
2517 seq_printf(m, "GuC total action count: %llu\n", guc->action_count);
2518 seq_printf(m, "GuC action failure count: %u\n", guc->action_fail);
2519 seq_printf(m, "GuC last action command: 0x%x\n", guc->action_cmd);
2520 seq_printf(m, "GuC last action status: 0x%x\n", guc->action_status);
2521 seq_printf(m, "GuC last action error code: %d\n", guc->action_err);
2524 seq_printf(m, "\nGuC submissions:\n");
2525 for_each_engine(engine, dev_priv, id) {
2526 u64 submissions = guc->submissions[id];
2527 total += submissions;
2528 seq_printf(m, "\t%-24s: %10llu, last seqno 0x%08x\n",
2529 engine->name, submissions, guc->last_seqno[id]);
2531 seq_printf(m, "\t%s: %llu\n", "Total", total);
2533 seq_printf(m, "\nGuC execbuf client @ %p:\n", guc->execbuf_client);
2534 i915_guc_client_info(m, dev_priv, guc->execbuf_client);
2536 i915_guc_log_info(m, dev_priv);
2538 /* Add more as required ... */
2543 static int i915_guc_log_dump(struct seq_file *m, void *data)
2545 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2546 struct drm_i915_gem_object *obj;
2549 if (!dev_priv->guc.log.vma)
2552 obj = dev_priv->guc.log.vma->obj;
2553 for (pg = 0; pg < obj->base.size / PAGE_SIZE; pg++) {
2554 u32 *log = kmap_atomic(i915_gem_object_get_page(obj, pg));
2556 for (i = 0; i < PAGE_SIZE / sizeof(u32); i += 4)
2557 seq_printf(m, "0x%08x 0x%08x 0x%08x 0x%08x\n",
2558 *(log + i), *(log + i + 1),
2559 *(log + i + 2), *(log + i + 3));
2569 static int i915_guc_log_control_get(void *data, u64 *val)
2571 struct drm_device *dev = data;
2572 struct drm_i915_private *dev_priv = to_i915(dev);
2574 if (!dev_priv->guc.log.vma)
2577 *val = i915.guc_log_level;
2582 static int i915_guc_log_control_set(void *data, u64 val)
2584 struct drm_device *dev = data;
2585 struct drm_i915_private *dev_priv = to_i915(dev);
2588 if (!dev_priv->guc.log.vma)
2591 ret = mutex_lock_interruptible(&dev->struct_mutex);
2595 intel_runtime_pm_get(dev_priv);
2596 ret = i915_guc_log_control(dev_priv, val);
2597 intel_runtime_pm_put(dev_priv);
2599 mutex_unlock(&dev->struct_mutex);
2603 DEFINE_SIMPLE_ATTRIBUTE(i915_guc_log_control_fops,
2604 i915_guc_log_control_get, i915_guc_log_control_set,
2607 static const char *psr2_live_status(u32 val)
2609 static const char * const live_status[] = {
2623 val = (val & EDP_PSR2_STATUS_STATE_MASK) >> EDP_PSR2_STATUS_STATE_SHIFT;
2624 if (val < ARRAY_SIZE(live_status))
2625 return live_status[val];
2630 static int i915_edp_psr_status(struct seq_file *m, void *data)
2632 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2636 bool enabled = false;
2638 if (!HAS_PSR(dev_priv)) {
2639 seq_puts(m, "PSR not supported\n");
2643 intel_runtime_pm_get(dev_priv);
2645 mutex_lock(&dev_priv->psr.lock);
2646 seq_printf(m, "Sink_Support: %s\n", yesno(dev_priv->psr.sink_support));
2647 seq_printf(m, "Source_OK: %s\n", yesno(dev_priv->psr.source_ok));
2648 seq_printf(m, "Enabled: %s\n", yesno((bool)dev_priv->psr.enabled));
2649 seq_printf(m, "Active: %s\n", yesno(dev_priv->psr.active));
2650 seq_printf(m, "Busy frontbuffer bits: 0x%03x\n",
2651 dev_priv->psr.busy_frontbuffer_bits);
2652 seq_printf(m, "Re-enable work scheduled: %s\n",
2653 yesno(work_busy(&dev_priv->psr.work.work)));
2655 if (HAS_DDI(dev_priv)) {
2656 if (dev_priv->psr.psr2_support)
2657 enabled = I915_READ(EDP_PSR2_CTL) & EDP_PSR2_ENABLE;
2659 enabled = I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE;
2661 for_each_pipe(dev_priv, pipe) {
2662 enum transcoder cpu_transcoder =
2663 intel_pipe_to_cpu_transcoder(dev_priv, pipe);
2664 enum intel_display_power_domain power_domain;
2666 power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder);
2667 if (!intel_display_power_get_if_enabled(dev_priv,
2671 stat[pipe] = I915_READ(VLV_PSRSTAT(pipe)) &
2672 VLV_EDP_PSR_CURR_STATE_MASK;
2673 if ((stat[pipe] == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
2674 (stat[pipe] == VLV_EDP_PSR_ACTIVE_SF_UPDATE))
2677 intel_display_power_put(dev_priv, power_domain);
2681 seq_printf(m, "Main link in standby mode: %s\n",
2682 yesno(dev_priv->psr.link_standby));
2684 seq_printf(m, "HW Enabled & Active bit: %s", yesno(enabled));
2686 if (!HAS_DDI(dev_priv))
2687 for_each_pipe(dev_priv, pipe) {
2688 if ((stat[pipe] == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
2689 (stat[pipe] == VLV_EDP_PSR_ACTIVE_SF_UPDATE))
2690 seq_printf(m, " pipe %c", pipe_name(pipe));
2695 * VLV/CHV PSR has no kind of performance counter
2696 * SKL+ Perf counter is reset to 0 everytime DC state is entered
2698 if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
2699 psrperf = I915_READ(EDP_PSR_PERF_CNT) &
2700 EDP_PSR_PERF_CNT_MASK;
2702 seq_printf(m, "Performance_Counter: %u\n", psrperf);
2704 if (dev_priv->psr.psr2_support) {
2705 u32 psr2 = I915_READ(EDP_PSR2_STATUS_CTL);
2707 seq_printf(m, "EDP_PSR2_STATUS_CTL: %x [%s]\n",
2708 psr2, psr2_live_status(psr2));
2710 mutex_unlock(&dev_priv->psr.lock);
2712 intel_runtime_pm_put(dev_priv);
2716 static int i915_sink_crc(struct seq_file *m, void *data)
2718 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2719 struct drm_device *dev = &dev_priv->drm;
2720 struct intel_connector *connector;
2721 struct drm_connector_list_iter conn_iter;
2722 struct intel_dp *intel_dp = NULL;
2726 drm_modeset_lock_all(dev);
2727 drm_connector_list_iter_begin(dev, &conn_iter);
2728 for_each_intel_connector_iter(connector, &conn_iter) {
2729 struct drm_crtc *crtc;
2731 if (!connector->base.state->best_encoder)
2734 crtc = connector->base.state->crtc;
2735 if (!crtc->state->active)
2738 if (connector->base.connector_type != DRM_MODE_CONNECTOR_eDP)
2741 intel_dp = enc_to_intel_dp(connector->base.state->best_encoder);
2743 ret = intel_dp_sink_crc(intel_dp, crc);
2747 seq_printf(m, "%02x%02x%02x%02x%02x%02x\n",
2748 crc[0], crc[1], crc[2],
2749 crc[3], crc[4], crc[5]);
2754 drm_connector_list_iter_end(&conn_iter);
2755 drm_modeset_unlock_all(dev);
2759 static int i915_energy_uJ(struct seq_file *m, void *data)
2761 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2765 if (INTEL_GEN(dev_priv) < 6)
2768 intel_runtime_pm_get(dev_priv);
2770 rdmsrl(MSR_RAPL_POWER_UNIT, power);
2771 power = (power & 0x1f00) >> 8;
2772 units = 1000000 / (1 << power); /* convert to uJ */
2773 power = I915_READ(MCH_SECP_NRG_STTS);
2776 intel_runtime_pm_put(dev_priv);
2778 seq_printf(m, "%llu", (long long unsigned)power);
2783 static int i915_runtime_pm_status(struct seq_file *m, void *unused)
2785 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2786 struct pci_dev *pdev = dev_priv->drm.pdev;
2788 if (!HAS_RUNTIME_PM(dev_priv))
2789 seq_puts(m, "Runtime power management not supported\n");
2791 seq_printf(m, "GPU idle: %s\n", yesno(!dev_priv->gt.awake));
2792 seq_printf(m, "IRQs disabled: %s\n",
2793 yesno(!intel_irqs_enabled(dev_priv)));
2795 seq_printf(m, "Usage count: %d\n",
2796 atomic_read(&dev_priv->drm.dev->power.usage_count));
2798 seq_printf(m, "Device Power Management (CONFIG_PM) disabled\n");
2800 seq_printf(m, "PCI device power state: %s [%d]\n",
2801 pci_power_name(pdev->current_state),
2802 pdev->current_state);
2807 static int i915_power_domain_info(struct seq_file *m, void *unused)
2809 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2810 struct i915_power_domains *power_domains = &dev_priv->power_domains;
2813 mutex_lock(&power_domains->lock);
2815 seq_printf(m, "%-25s %s\n", "Power well/domain", "Use count");
2816 for (i = 0; i < power_domains->power_well_count; i++) {
2817 struct i915_power_well *power_well;
2818 enum intel_display_power_domain power_domain;
2820 power_well = &power_domains->power_wells[i];
2821 seq_printf(m, "%-25s %d\n", power_well->name,
2824 for_each_power_domain(power_domain, power_well->domains)
2825 seq_printf(m, " %-23s %d\n",
2826 intel_display_power_domain_str(power_domain),
2827 power_domains->domain_use_count[power_domain]);
2830 mutex_unlock(&power_domains->lock);
2835 static int i915_dmc_info(struct seq_file *m, void *unused)
2837 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2838 struct intel_csr *csr;
2840 if (!HAS_CSR(dev_priv)) {
2841 seq_puts(m, "not supported\n");
2845 csr = &dev_priv->csr;
2847 intel_runtime_pm_get(dev_priv);
2849 seq_printf(m, "fw loaded: %s\n", yesno(csr->dmc_payload != NULL));
2850 seq_printf(m, "path: %s\n", csr->fw_path);
2852 if (!csr->dmc_payload)
2855 seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version),
2856 CSR_VERSION_MINOR(csr->version));
2858 if (IS_SKYLAKE(dev_priv) && csr->version >= CSR_VERSION(1, 6)) {
2859 seq_printf(m, "DC3 -> DC5 count: %d\n",
2860 I915_READ(SKL_CSR_DC3_DC5_COUNT));
2861 seq_printf(m, "DC5 -> DC6 count: %d\n",
2862 I915_READ(SKL_CSR_DC5_DC6_COUNT));
2863 } else if (IS_BROXTON(dev_priv) && csr->version >= CSR_VERSION(1, 4)) {
2864 seq_printf(m, "DC3 -> DC5 count: %d\n",
2865 I915_READ(BXT_CSR_DC3_DC5_COUNT));
2869 seq_printf(m, "program base: 0x%08x\n", I915_READ(CSR_PROGRAM(0)));
2870 seq_printf(m, "ssp base: 0x%08x\n", I915_READ(CSR_SSP_BASE));
2871 seq_printf(m, "htp: 0x%08x\n", I915_READ(CSR_HTP_SKL));
2873 intel_runtime_pm_put(dev_priv);
2878 static void intel_seq_print_mode(struct seq_file *m, int tabs,
2879 struct drm_display_mode *mode)
2883 for (i = 0; i < tabs; i++)
2886 seq_printf(m, "id %d:\"%s\" freq %d clock %d hdisp %d hss %d hse %d htot %d vdisp %d vss %d vse %d vtot %d type 0x%x flags 0x%x\n",
2887 mode->base.id, mode->name,
2888 mode->vrefresh, mode->clock,
2889 mode->hdisplay, mode->hsync_start,
2890 mode->hsync_end, mode->htotal,
2891 mode->vdisplay, mode->vsync_start,
2892 mode->vsync_end, mode->vtotal,
2893 mode->type, mode->flags);
2896 static void intel_encoder_info(struct seq_file *m,
2897 struct intel_crtc *intel_crtc,
2898 struct intel_encoder *intel_encoder)
2900 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2901 struct drm_device *dev = &dev_priv->drm;
2902 struct drm_crtc *crtc = &intel_crtc->base;
2903 struct intel_connector *intel_connector;
2904 struct drm_encoder *encoder;
2906 encoder = &intel_encoder->base;
2907 seq_printf(m, "\tencoder %d: type: %s, connectors:\n",
2908 encoder->base.id, encoder->name);
2909 for_each_connector_on_encoder(dev, encoder, intel_connector) {
2910 struct drm_connector *connector = &intel_connector->base;
2911 seq_printf(m, "\t\tconnector %d: type: %s, status: %s",
2914 drm_get_connector_status_name(connector->status));
2915 if (connector->status == connector_status_connected) {
2916 struct drm_display_mode *mode = &crtc->mode;
2917 seq_printf(m, ", mode:\n");
2918 intel_seq_print_mode(m, 2, mode);
2925 static void intel_crtc_info(struct seq_file *m, struct intel_crtc *intel_crtc)
2927 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2928 struct drm_device *dev = &dev_priv->drm;
2929 struct drm_crtc *crtc = &intel_crtc->base;
2930 struct intel_encoder *intel_encoder;
2931 struct drm_plane_state *plane_state = crtc->primary->state;
2932 struct drm_framebuffer *fb = plane_state->fb;
2935 seq_printf(m, "\tfb: %d, pos: %dx%d, size: %dx%d\n",
2936 fb->base.id, plane_state->src_x >> 16,
2937 plane_state->src_y >> 16, fb->width, fb->height);
2939 seq_puts(m, "\tprimary plane disabled\n");
2940 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
2941 intel_encoder_info(m, intel_crtc, intel_encoder);
2944 static void intel_panel_info(struct seq_file *m, struct intel_panel *panel)
2946 struct drm_display_mode *mode = panel->fixed_mode;
2948 seq_printf(m, "\tfixed mode:\n");
2949 intel_seq_print_mode(m, 2, mode);
2952 static void intel_dp_info(struct seq_file *m,
2953 struct intel_connector *intel_connector)
2955 struct intel_encoder *intel_encoder = intel_connector->encoder;
2956 struct intel_dp *intel_dp = enc_to_intel_dp(&intel_encoder->base);
2958 seq_printf(m, "\tDPCD rev: %x\n", intel_dp->dpcd[DP_DPCD_REV]);
2959 seq_printf(m, "\taudio support: %s\n", yesno(intel_dp->has_audio));
2960 if (intel_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)
2961 intel_panel_info(m, &intel_connector->panel);
2963 drm_dp_downstream_debug(m, intel_dp->dpcd, intel_dp->downstream_ports,
2967 static void intel_dp_mst_info(struct seq_file *m,
2968 struct intel_connector *intel_connector)
2970 struct intel_encoder *intel_encoder = intel_connector->encoder;
2971 struct intel_dp_mst_encoder *intel_mst =
2972 enc_to_mst(&intel_encoder->base);
2973 struct intel_digital_port *intel_dig_port = intel_mst->primary;
2974 struct intel_dp *intel_dp = &intel_dig_port->dp;
2975 bool has_audio = drm_dp_mst_port_has_audio(&intel_dp->mst_mgr,
2976 intel_connector->port);
2978 seq_printf(m, "\taudio support: %s\n", yesno(has_audio));
2981 static void intel_hdmi_info(struct seq_file *m,
2982 struct intel_connector *intel_connector)
2984 struct intel_encoder *intel_encoder = intel_connector->encoder;
2985 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&intel_encoder->base);
2987 seq_printf(m, "\taudio support: %s\n", yesno(intel_hdmi->has_audio));
2990 static void intel_lvds_info(struct seq_file *m,
2991 struct intel_connector *intel_connector)
2993 intel_panel_info(m, &intel_connector->panel);
2996 static void intel_connector_info(struct seq_file *m,
2997 struct drm_connector *connector)
2999 struct intel_connector *intel_connector = to_intel_connector(connector);
3000 struct intel_encoder *intel_encoder = intel_connector->encoder;
3001 struct drm_display_mode *mode;
3003 seq_printf(m, "connector %d: type %s, status: %s\n",
3004 connector->base.id, connector->name,
3005 drm_get_connector_status_name(connector->status));
3006 if (connector->status == connector_status_connected) {
3007 seq_printf(m, "\tname: %s\n", connector->display_info.name);
3008 seq_printf(m, "\tphysical dimensions: %dx%dmm\n",
3009 connector->display_info.width_mm,
3010 connector->display_info.height_mm);
3011 seq_printf(m, "\tsubpixel order: %s\n",
3012 drm_get_subpixel_order_name(connector->display_info.subpixel_order));
3013 seq_printf(m, "\tCEA rev: %d\n",
3014 connector->display_info.cea_rev);
3017 if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
3020 switch (connector->connector_type) {
3021 case DRM_MODE_CONNECTOR_DisplayPort:
3022 case DRM_MODE_CONNECTOR_eDP:
3023 if (intel_encoder->type == INTEL_OUTPUT_DP_MST)
3024 intel_dp_mst_info(m, intel_connector);
3026 intel_dp_info(m, intel_connector);
3028 case DRM_MODE_CONNECTOR_LVDS:
3029 if (intel_encoder->type == INTEL_OUTPUT_LVDS)
3030 intel_lvds_info(m, intel_connector);
3032 case DRM_MODE_CONNECTOR_HDMIA:
3033 if (intel_encoder->type == INTEL_OUTPUT_HDMI ||
3034 intel_encoder->type == INTEL_OUTPUT_UNKNOWN)
3035 intel_hdmi_info(m, intel_connector);
3041 seq_printf(m, "\tmodes:\n");
3042 list_for_each_entry(mode, &connector->modes, head)
3043 intel_seq_print_mode(m, 2, mode);
3046 static bool cursor_active(struct drm_i915_private *dev_priv, int pipe)
3050 if (IS_I845G(dev_priv) || IS_I865G(dev_priv))
3051 state = I915_READ(CURCNTR(PIPE_A)) & CURSOR_ENABLE;
3053 state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE;
3058 static bool cursor_position(struct drm_i915_private *dev_priv,
3059 int pipe, int *x, int *y)
3063 pos = I915_READ(CURPOS(pipe));
3065 *x = (pos >> CURSOR_X_SHIFT) & CURSOR_POS_MASK;
3066 if (pos & (CURSOR_POS_SIGN << CURSOR_X_SHIFT))
3069 *y = (pos >> CURSOR_Y_SHIFT) & CURSOR_POS_MASK;
3070 if (pos & (CURSOR_POS_SIGN << CURSOR_Y_SHIFT))
3073 return cursor_active(dev_priv, pipe);
3076 static const char *plane_type(enum drm_plane_type type)
3079 case DRM_PLANE_TYPE_OVERLAY:
3081 case DRM_PLANE_TYPE_PRIMARY:
3083 case DRM_PLANE_TYPE_CURSOR:
3086 * Deliberately omitting default: to generate compiler warnings
3087 * when a new drm_plane_type gets added.
3094 static const char *plane_rotation(unsigned int rotation)
3096 static char buf[48];
3098 * According to doc only one DRM_ROTATE_ is allowed but this
3099 * will print them all to visualize if the values are misused
3101 snprintf(buf, sizeof(buf),
3102 "%s%s%s%s%s%s(0x%08x)",
3103 (rotation & DRM_ROTATE_0) ? "0 " : "",
3104 (rotation & DRM_ROTATE_90) ? "90 " : "",
3105 (rotation & DRM_ROTATE_180) ? "180 " : "",
3106 (rotation & DRM_ROTATE_270) ? "270 " : "",
3107 (rotation & DRM_REFLECT_X) ? "FLIPX " : "",
3108 (rotation & DRM_REFLECT_Y) ? "FLIPY " : "",
3114 static void intel_plane_info(struct seq_file *m, struct intel_crtc *intel_crtc)
3116 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3117 struct drm_device *dev = &dev_priv->drm;
3118 struct intel_plane *intel_plane;
3120 for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) {
3121 struct drm_plane_state *state;
3122 struct drm_plane *plane = &intel_plane->base;
3123 struct drm_format_name_buf format_name;
3125 if (!plane->state) {
3126 seq_puts(m, "plane->state is NULL!\n");
3130 state = plane->state;
3133 drm_get_format_name(state->fb->format->format,
3136 sprintf(format_name.str, "N/A");
3139 seq_printf(m, "\t--Plane id %d: type=%s, crtc_pos=%4dx%4d, crtc_size=%4dx%4d, src_pos=%d.%04ux%d.%04u, src_size=%d.%04ux%d.%04u, format=%s, rotation=%s\n",
3141 plane_type(intel_plane->base.type),
3142 state->crtc_x, state->crtc_y,
3143 state->crtc_w, state->crtc_h,
3144 (state->src_x >> 16),
3145 ((state->src_x & 0xffff) * 15625) >> 10,
3146 (state->src_y >> 16),
3147 ((state->src_y & 0xffff) * 15625) >> 10,
3148 (state->src_w >> 16),
3149 ((state->src_w & 0xffff) * 15625) >> 10,
3150 (state->src_h >> 16),
3151 ((state->src_h & 0xffff) * 15625) >> 10,
3153 plane_rotation(state->rotation));
3157 static void intel_scaler_info(struct seq_file *m, struct intel_crtc *intel_crtc)
3159 struct intel_crtc_state *pipe_config;
3160 int num_scalers = intel_crtc->num_scalers;
3163 pipe_config = to_intel_crtc_state(intel_crtc->base.state);
3165 /* Not all platformas have a scaler */
3167 seq_printf(m, "\tnum_scalers=%d, scaler_users=%x scaler_id=%d",
3169 pipe_config->scaler_state.scaler_users,
3170 pipe_config->scaler_state.scaler_id);
3172 for (i = 0; i < num_scalers; i++) {
3173 struct intel_scaler *sc =
3174 &pipe_config->scaler_state.scalers[i];
3176 seq_printf(m, ", scalers[%d]: use=%s, mode=%x",
3177 i, yesno(sc->in_use), sc->mode);
3181 seq_puts(m, "\tNo scalers available on this platform\n");
3185 static int i915_display_info(struct seq_file *m, void *unused)
3187 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3188 struct drm_device *dev = &dev_priv->drm;
3189 struct intel_crtc *crtc;
3190 struct drm_connector *connector;
3191 struct drm_connector_list_iter conn_iter;
3193 intel_runtime_pm_get(dev_priv);
3194 seq_printf(m, "CRTC info\n");
3195 seq_printf(m, "---------\n");
3196 for_each_intel_crtc(dev, crtc) {
3198 struct intel_crtc_state *pipe_config;
3201 drm_modeset_lock(&crtc->base.mutex, NULL);
3202 pipe_config = to_intel_crtc_state(crtc->base.state);
3204 seq_printf(m, "CRTC %d: pipe: %c, active=%s, (size=%dx%d), dither=%s, bpp=%d\n",
3205 crtc->base.base.id, pipe_name(crtc->pipe),
3206 yesno(pipe_config->base.active),
3207 pipe_config->pipe_src_w, pipe_config->pipe_src_h,
3208 yesno(pipe_config->dither), pipe_config->pipe_bpp);
3210 if (pipe_config->base.active) {
3211 intel_crtc_info(m, crtc);
3213 active = cursor_position(dev_priv, crtc->pipe, &x, &y);
3214 seq_printf(m, "\tcursor visible? %s, position (%d, %d), size %dx%d, addr 0x%08x, active? %s\n",
3215 yesno(crtc->cursor_base),
3216 x, y, crtc->base.cursor->state->crtc_w,
3217 crtc->base.cursor->state->crtc_h,
3218 crtc->cursor_addr, yesno(active));
3219 intel_scaler_info(m, crtc);
3220 intel_plane_info(m, crtc);
3223 seq_printf(m, "\tunderrun reporting: cpu=%s pch=%s \n",
3224 yesno(!crtc->cpu_fifo_underrun_disabled),
3225 yesno(!crtc->pch_fifo_underrun_disabled));
3226 drm_modeset_unlock(&crtc->base.mutex);
3229 seq_printf(m, "\n");
3230 seq_printf(m, "Connector info\n");
3231 seq_printf(m, "--------------\n");
3232 mutex_lock(&dev->mode_config.mutex);
3233 drm_connector_list_iter_begin(dev, &conn_iter);
3234 drm_for_each_connector_iter(connector, &conn_iter)
3235 intel_connector_info(m, connector);
3236 drm_connector_list_iter_end(&conn_iter);
3237 mutex_unlock(&dev->mode_config.mutex);
3239 intel_runtime_pm_put(dev_priv);
3244 static int i915_engine_info(struct seq_file *m, void *unused)
3246 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3247 struct intel_engine_cs *engine;
3248 enum intel_engine_id id;
3250 intel_runtime_pm_get(dev_priv);
3252 seq_printf(m, "GT awake? %s\n",
3253 yesno(dev_priv->gt.awake));
3254 seq_printf(m, "Global active requests: %d\n",
3255 dev_priv->gt.active_requests);
3257 for_each_engine(engine, dev_priv, id) {
3258 struct intel_breadcrumbs *b = &engine->breadcrumbs;
3259 struct drm_i915_gem_request *rq;
3263 seq_printf(m, "%s\n", engine->name);
3264 seq_printf(m, "\tcurrent seqno %x, last %x, hangcheck %x [%d ms], inflight %d\n",
3265 intel_engine_get_seqno(engine),
3266 intel_engine_last_submit(engine),
3267 engine->hangcheck.seqno,
3268 jiffies_to_msecs(jiffies - engine->hangcheck.action_timestamp),
3269 engine->timeline->inflight_seqnos);
3273 seq_printf(m, "\tRequests:\n");
3275 rq = list_first_entry(&engine->timeline->requests,
3276 struct drm_i915_gem_request, link);
3277 if (&rq->link != &engine->timeline->requests)
3278 print_request(m, rq, "\t\tfirst ");
3280 rq = list_last_entry(&engine->timeline->requests,
3281 struct drm_i915_gem_request, link);
3282 if (&rq->link != &engine->timeline->requests)
3283 print_request(m, rq, "\t\tlast ");
3285 rq = i915_gem_find_active_request(engine);
3287 print_request(m, rq, "\t\tactive ");
3289 "\t\t[head %04x, postfix %04x, tail %04x, batch 0x%08x_%08x]\n",
3290 rq->head, rq->postfix, rq->tail,
3291 rq->batch ? upper_32_bits(rq->batch->node.start) : ~0u,
3292 rq->batch ? lower_32_bits(rq->batch->node.start) : ~0u);
3295 seq_printf(m, "\tRING_START: 0x%08x [0x%08x]\n",
3296 I915_READ(RING_START(engine->mmio_base)),
3297 rq ? i915_ggtt_offset(rq->ring->vma) : 0);
3298 seq_printf(m, "\tRING_HEAD: 0x%08x [0x%08x]\n",
3299 I915_READ(RING_HEAD(engine->mmio_base)) & HEAD_ADDR,
3300 rq ? rq->ring->head : 0);
3301 seq_printf(m, "\tRING_TAIL: 0x%08x [0x%08x]\n",
3302 I915_READ(RING_TAIL(engine->mmio_base)) & TAIL_ADDR,
3303 rq ? rq->ring->tail : 0);
3304 seq_printf(m, "\tRING_CTL: 0x%08x [%s]\n",
3305 I915_READ(RING_CTL(engine->mmio_base)),
3306 I915_READ(RING_CTL(engine->mmio_base)) & (RING_WAIT | RING_WAIT_SEMAPHORE) ? "waiting" : "");
3310 addr = intel_engine_get_active_head(engine);
3311 seq_printf(m, "\tACTHD: 0x%08x_%08x\n",
3312 upper_32_bits(addr), lower_32_bits(addr));
3313 addr = intel_engine_get_last_batch_head(engine);
3314 seq_printf(m, "\tBBADDR: 0x%08x_%08x\n",
3315 upper_32_bits(addr), lower_32_bits(addr));
3317 if (i915.enable_execlists) {
3318 u32 ptr, read, write;
3321 seq_printf(m, "\tExeclist status: 0x%08x %08x\n",
3322 I915_READ(RING_EXECLIST_STATUS_LO(engine)),
3323 I915_READ(RING_EXECLIST_STATUS_HI(engine)));
3325 ptr = I915_READ(RING_CONTEXT_STATUS_PTR(engine));
3326 read = GEN8_CSB_READ_PTR(ptr);
3327 write = GEN8_CSB_WRITE_PTR(ptr);
3328 seq_printf(m, "\tExeclist CSB read %d, write %d\n",
3330 if (read >= GEN8_CSB_ENTRIES)
3332 if (write >= GEN8_CSB_ENTRIES)
3335 write += GEN8_CSB_ENTRIES;
3336 while (read < write) {
3337 unsigned int idx = ++read % GEN8_CSB_ENTRIES;
3339 seq_printf(m, "\tExeclist CSB[%d]: 0x%08x, context: %d\n",
3341 I915_READ(RING_CONTEXT_STATUS_BUF_LO(engine, idx)),
3342 I915_READ(RING_CONTEXT_STATUS_BUF_HI(engine, idx)));
3346 rq = READ_ONCE(engine->execlist_port[0].request);
3348 seq_printf(m, "\t\tELSP[0] count=%d, ",
3349 engine->execlist_port[0].count);
3350 print_request(m, rq, "rq: ");
3352 seq_printf(m, "\t\tELSP[0] idle\n");
3354 rq = READ_ONCE(engine->execlist_port[1].request);
3356 seq_printf(m, "\t\tELSP[1] count=%d, ",
3357 engine->execlist_port[1].count);
3358 print_request(m, rq, "rq: ");
3360 seq_printf(m, "\t\tELSP[1] idle\n");
3364 spin_lock_irq(&engine->timeline->lock);
3365 for (rb = engine->execlist_first; rb; rb = rb_next(rb)) {
3366 rq = rb_entry(rb, typeof(*rq), priotree.node);
3367 print_request(m, rq, "\t\tQ ");
3369 spin_unlock_irq(&engine->timeline->lock);
3370 } else if (INTEL_GEN(dev_priv) > 6) {
3371 seq_printf(m, "\tPP_DIR_BASE: 0x%08x\n",
3372 I915_READ(RING_PP_DIR_BASE(engine)));
3373 seq_printf(m, "\tPP_DIR_BASE_READ: 0x%08x\n",
3374 I915_READ(RING_PP_DIR_BASE_READ(engine)));
3375 seq_printf(m, "\tPP_DIR_DCLV: 0x%08x\n",
3376 I915_READ(RING_PP_DIR_DCLV(engine)));
3379 spin_lock_irq(&b->rb_lock);
3380 for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) {
3381 struct intel_wait *w = rb_entry(rb, typeof(*w), node);
3383 seq_printf(m, "\t%s [%d] waiting for %x\n",
3384 w->tsk->comm, w->tsk->pid, w->seqno);
3386 spin_unlock_irq(&b->rb_lock);
3391 intel_runtime_pm_put(dev_priv);
3396 static int i915_semaphore_status(struct seq_file *m, void *unused)
3398 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3399 struct drm_device *dev = &dev_priv->drm;
3400 struct intel_engine_cs *engine;
3401 int num_rings = INTEL_INFO(dev_priv)->num_rings;
3402 enum intel_engine_id id;
3405 if (!i915.semaphores) {
3406 seq_puts(m, "Semaphores are disabled\n");
3410 ret = mutex_lock_interruptible(&dev->struct_mutex);
3413 intel_runtime_pm_get(dev_priv);
3415 if (IS_BROADWELL(dev_priv)) {
3419 page = i915_gem_object_get_page(dev_priv->semaphore->obj, 0);
3421 seqno = (uint64_t *)kmap_atomic(page);
3422 for_each_engine(engine, dev_priv, id) {
3425 seq_printf(m, "%s\n", engine->name);
3427 seq_puts(m, " Last signal:");
3428 for (j = 0; j < num_rings; j++) {
3429 offset = id * I915_NUM_ENGINES + j;
3430 seq_printf(m, "0x%08llx (0x%02llx) ",
3431 seqno[offset], offset * 8);
3435 seq_puts(m, " Last wait: ");
3436 for (j = 0; j < num_rings; j++) {
3437 offset = id + (j * I915_NUM_ENGINES);
3438 seq_printf(m, "0x%08llx (0x%02llx) ",
3439 seqno[offset], offset * 8);
3444 kunmap_atomic(seqno);
3446 seq_puts(m, " Last signal:");
3447 for_each_engine(engine, dev_priv, id)
3448 for (j = 0; j < num_rings; j++)
3449 seq_printf(m, "0x%08x\n",
3450 I915_READ(engine->semaphore.mbox.signal[j]));
3454 intel_runtime_pm_put(dev_priv);
3455 mutex_unlock(&dev->struct_mutex);
3459 static int i915_shared_dplls_info(struct seq_file *m, void *unused)
3461 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3462 struct drm_device *dev = &dev_priv->drm;
3465 drm_modeset_lock_all(dev);
3466 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
3467 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
3469 seq_printf(m, "DPLL%i: %s, id: %i\n", i, pll->name, pll->id);
3470 seq_printf(m, " crtc_mask: 0x%08x, active: 0x%x, on: %s\n",
3471 pll->state.crtc_mask, pll->active_mask, yesno(pll->on));
3472 seq_printf(m, " tracked hardware state:\n");
3473 seq_printf(m, " dpll: 0x%08x\n", pll->state.hw_state.dpll);
3474 seq_printf(m, " dpll_md: 0x%08x\n",
3475 pll->state.hw_state.dpll_md);
3476 seq_printf(m, " fp0: 0x%08x\n", pll->state.hw_state.fp0);
3477 seq_printf(m, " fp1: 0x%08x\n", pll->state.hw_state.fp1);
3478 seq_printf(m, " wrpll: 0x%08x\n", pll->state.hw_state.wrpll);
3480 drm_modeset_unlock_all(dev);
3485 static int i915_wa_registers(struct seq_file *m, void *unused)
3489 struct intel_engine_cs *engine;
3490 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3491 struct drm_device *dev = &dev_priv->drm;
3492 struct i915_workarounds *workarounds = &dev_priv->workarounds;
3493 enum intel_engine_id id;
3495 ret = mutex_lock_interruptible(&dev->struct_mutex);
3499 intel_runtime_pm_get(dev_priv);
3501 seq_printf(m, "Workarounds applied: %d\n", workarounds->count);
3502 for_each_engine(engine, dev_priv, id)
3503 seq_printf(m, "HW whitelist count for %s: %d\n",
3504 engine->name, workarounds->hw_whitelist_count[id]);
3505 for (i = 0; i < workarounds->count; ++i) {
3507 u32 mask, value, read;
3510 addr = workarounds->reg[i].addr;
3511 mask = workarounds->reg[i].mask;
3512 value = workarounds->reg[i].value;
3513 read = I915_READ(addr);
3514 ok = (value & mask) == (read & mask);
3515 seq_printf(m, "0x%X: 0x%08X, mask: 0x%08X, read: 0x%08x, status: %s\n",
3516 i915_mmio_reg_offset(addr), value, mask, read, ok ? "OK" : "FAIL");
3519 intel_runtime_pm_put(dev_priv);
3520 mutex_unlock(&dev->struct_mutex);
3525 static int i915_ddb_info(struct seq_file *m, void *unused)
3527 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3528 struct drm_device *dev = &dev_priv->drm;
3529 struct skl_ddb_allocation *ddb;
3530 struct skl_ddb_entry *entry;
3534 if (INTEL_GEN(dev_priv) < 9)
3537 drm_modeset_lock_all(dev);
3539 ddb = &dev_priv->wm.skl_hw.ddb;
3541 seq_printf(m, "%-15s%8s%8s%8s\n", "", "Start", "End", "Size");
3543 for_each_pipe(dev_priv, pipe) {
3544 seq_printf(m, "Pipe %c\n", pipe_name(pipe));
3546 for_each_universal_plane(dev_priv, pipe, plane) {
3547 entry = &ddb->plane[pipe][plane];
3548 seq_printf(m, " Plane%-8d%8u%8u%8u\n", plane + 1,
3549 entry->start, entry->end,
3550 skl_ddb_entry_size(entry));
3553 entry = &ddb->plane[pipe][PLANE_CURSOR];
3554 seq_printf(m, " %-13s%8u%8u%8u\n", "Cursor", entry->start,
3555 entry->end, skl_ddb_entry_size(entry));
3558 drm_modeset_unlock_all(dev);
3563 static void drrs_status_per_crtc(struct seq_file *m,
3564 struct drm_device *dev,
3565 struct intel_crtc *intel_crtc)
3567 struct drm_i915_private *dev_priv = to_i915(dev);
3568 struct i915_drrs *drrs = &dev_priv->drrs;
3570 struct drm_connector *connector;
3571 struct drm_connector_list_iter conn_iter;
3573 drm_connector_list_iter_begin(dev, &conn_iter);
3574 drm_for_each_connector_iter(connector, &conn_iter) {
3575 if (connector->state->crtc != &intel_crtc->base)
3578 seq_printf(m, "%s:\n", connector->name);
3580 drm_connector_list_iter_end(&conn_iter);
3582 if (dev_priv->vbt.drrs_type == STATIC_DRRS_SUPPORT)
3583 seq_puts(m, "\tVBT: DRRS_type: Static");
3584 else if (dev_priv->vbt.drrs_type == SEAMLESS_DRRS_SUPPORT)
3585 seq_puts(m, "\tVBT: DRRS_type: Seamless");
3586 else if (dev_priv->vbt.drrs_type == DRRS_NOT_SUPPORTED)
3587 seq_puts(m, "\tVBT: DRRS_type: None");
3589 seq_puts(m, "\tVBT: DRRS_type: FIXME: Unrecognized Value");
3591 seq_puts(m, "\n\n");
3593 if (to_intel_crtc_state(intel_crtc->base.state)->has_drrs) {
3594 struct intel_panel *panel;
3596 mutex_lock(&drrs->mutex);
3597 /* DRRS Supported */
3598 seq_puts(m, "\tDRRS Supported: Yes\n");
3600 /* disable_drrs() will make drrs->dp NULL */
3602 seq_puts(m, "Idleness DRRS: Disabled");
3603 mutex_unlock(&drrs->mutex);
3607 panel = &drrs->dp->attached_connector->panel;
3608 seq_printf(m, "\t\tBusy_frontbuffer_bits: 0x%X",
3609 drrs->busy_frontbuffer_bits);
3611 seq_puts(m, "\n\t\t");
3612 if (drrs->refresh_rate_type == DRRS_HIGH_RR) {
3613 seq_puts(m, "DRRS_State: DRRS_HIGH_RR\n");
3614 vrefresh = panel->fixed_mode->vrefresh;
3615 } else if (drrs->refresh_rate_type == DRRS_LOW_RR) {
3616 seq_puts(m, "DRRS_State: DRRS_LOW_RR\n");
3617 vrefresh = panel->downclock_mode->vrefresh;
3619 seq_printf(m, "DRRS_State: Unknown(%d)\n",
3620 drrs->refresh_rate_type);
3621 mutex_unlock(&drrs->mutex);
3624 seq_printf(m, "\t\tVrefresh: %d", vrefresh);
3626 seq_puts(m, "\n\t\t");
3627 mutex_unlock(&drrs->mutex);
3629 /* DRRS not supported. Print the VBT parameter*/
3630 seq_puts(m, "\tDRRS Supported : No");
3635 static int i915_drrs_status(struct seq_file *m, void *unused)
3637 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3638 struct drm_device *dev = &dev_priv->drm;
3639 struct intel_crtc *intel_crtc;
3640 int active_crtc_cnt = 0;
3642 drm_modeset_lock_all(dev);
3643 for_each_intel_crtc(dev, intel_crtc) {
3644 if (intel_crtc->base.state->active) {
3646 seq_printf(m, "\nCRTC %d: ", active_crtc_cnt);
3648 drrs_status_per_crtc(m, dev, intel_crtc);
3651 drm_modeset_unlock_all(dev);
3653 if (!active_crtc_cnt)
3654 seq_puts(m, "No active crtc found\n");
3659 static int i915_dp_mst_info(struct seq_file *m, void *unused)
3661 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3662 struct drm_device *dev = &dev_priv->drm;
3663 struct intel_encoder *intel_encoder;
3664 struct intel_digital_port *intel_dig_port;
3665 struct drm_connector *connector;
3666 struct drm_connector_list_iter conn_iter;
3668 drm_connector_list_iter_begin(dev, &conn_iter);
3669 drm_for_each_connector_iter(connector, &conn_iter) {
3670 if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
3673 intel_encoder = intel_attached_encoder(connector);
3674 if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
3677 intel_dig_port = enc_to_dig_port(&intel_encoder->base);
3678 if (!intel_dig_port->dp.can_mst)
3681 seq_printf(m, "MST Source Port %c\n",
3682 port_name(intel_dig_port->port));
3683 drm_dp_mst_dump_topology(m, &intel_dig_port->dp.mst_mgr);
3685 drm_connector_list_iter_end(&conn_iter);
3690 static ssize_t i915_displayport_test_active_write(struct file *file,
3691 const char __user *ubuf,
3692 size_t len, loff_t *offp)
3696 struct drm_device *dev;
3697 struct drm_connector *connector;
3698 struct drm_connector_list_iter conn_iter;
3699 struct intel_dp *intel_dp;
3702 dev = ((struct seq_file *)file->private_data)->private;
3707 input_buffer = kmalloc(len + 1, GFP_KERNEL);
3711 if (copy_from_user(input_buffer, ubuf, len)) {
3716 input_buffer[len] = '\0';
3717 DRM_DEBUG_DRIVER("Copied %d bytes from user\n", (unsigned int)len);
3719 drm_connector_list_iter_begin(dev, &conn_iter);
3720 drm_for_each_connector_iter(connector, &conn_iter) {
3721 if (connector->connector_type !=
3722 DRM_MODE_CONNECTOR_DisplayPort)
3725 if (connector->status == connector_status_connected &&
3726 connector->encoder != NULL) {
3727 intel_dp = enc_to_intel_dp(connector->encoder);
3728 status = kstrtoint(input_buffer, 10, &val);
3731 DRM_DEBUG_DRIVER("Got %d for test active\n", val);
3732 /* To prevent erroneous activation of the compliance
3733 * testing code, only accept an actual value of 1 here
3736 intel_dp->compliance.test_active = 1;
3738 intel_dp->compliance.test_active = 0;
3741 drm_connector_list_iter_end(&conn_iter);
3743 kfree(input_buffer);
3751 static int i915_displayport_test_active_show(struct seq_file *m, void *data)
3753 struct drm_device *dev = m->private;
3754 struct drm_connector *connector;
3755 struct drm_connector_list_iter conn_iter;
3756 struct intel_dp *intel_dp;
3758 drm_connector_list_iter_begin(dev, &conn_iter);
3759 drm_for_each_connector_iter(connector, &conn_iter) {
3760 if (connector->connector_type !=
3761 DRM_MODE_CONNECTOR_DisplayPort)
3764 if (connector->status == connector_status_connected &&
3765 connector->encoder != NULL) {
3766 intel_dp = enc_to_intel_dp(connector->encoder);
3767 if (intel_dp->compliance.test_active)
3774 drm_connector_list_iter_end(&conn_iter);
3779 static int i915_displayport_test_active_open(struct inode *inode,
3782 struct drm_i915_private *dev_priv = inode->i_private;
3784 return single_open(file, i915_displayport_test_active_show,
3788 static const struct file_operations i915_displayport_test_active_fops = {
3789 .owner = THIS_MODULE,
3790 .open = i915_displayport_test_active_open,
3792 .llseek = seq_lseek,
3793 .release = single_release,
3794 .write = i915_displayport_test_active_write
3797 static int i915_displayport_test_data_show(struct seq_file *m, void *data)
3799 struct drm_device *dev = m->private;
3800 struct drm_connector *connector;
3801 struct drm_connector_list_iter conn_iter;
3802 struct intel_dp *intel_dp;
3804 drm_connector_list_iter_begin(dev, &conn_iter);
3805 drm_for_each_connector_iter(connector, &conn_iter) {
3806 if (connector->connector_type !=
3807 DRM_MODE_CONNECTOR_DisplayPort)
3810 if (connector->status == connector_status_connected &&
3811 connector->encoder != NULL) {
3812 intel_dp = enc_to_intel_dp(connector->encoder);
3813 if (intel_dp->compliance.test_type ==
3814 DP_TEST_LINK_EDID_READ)
3815 seq_printf(m, "%lx",
3816 intel_dp->compliance.test_data.edid);
3817 else if (intel_dp->compliance.test_type ==
3818 DP_TEST_LINK_VIDEO_PATTERN) {
3819 seq_printf(m, "hdisplay: %d\n",
3820 intel_dp->compliance.test_data.hdisplay);
3821 seq_printf(m, "vdisplay: %d\n",
3822 intel_dp->compliance.test_data.vdisplay);
3823 seq_printf(m, "bpc: %u\n",
3824 intel_dp->compliance.test_data.bpc);
3829 drm_connector_list_iter_end(&conn_iter);
3833 static int i915_displayport_test_data_open(struct inode *inode,
3836 struct drm_i915_private *dev_priv = inode->i_private;
3838 return single_open(file, i915_displayport_test_data_show,
3842 static const struct file_operations i915_displayport_test_data_fops = {
3843 .owner = THIS_MODULE,
3844 .open = i915_displayport_test_data_open,
3846 .llseek = seq_lseek,
3847 .release = single_release
3850 static int i915_displayport_test_type_show(struct seq_file *m, void *data)
3852 struct drm_device *dev = m->private;
3853 struct drm_connector *connector;
3854 struct drm_connector_list_iter conn_iter;
3855 struct intel_dp *intel_dp;
3857 drm_connector_list_iter_begin(dev, &conn_iter);
3858 drm_for_each_connector_iter(connector, &conn_iter) {
3859 if (connector->connector_type !=
3860 DRM_MODE_CONNECTOR_DisplayPort)
3863 if (connector->status == connector_status_connected &&
3864 connector->encoder != NULL) {
3865 intel_dp = enc_to_intel_dp(connector->encoder);
3866 seq_printf(m, "%02lx", intel_dp->compliance.test_type);
3870 drm_connector_list_iter_end(&conn_iter);
3875 static int i915_displayport_test_type_open(struct inode *inode,
3878 struct drm_i915_private *dev_priv = inode->i_private;
3880 return single_open(file, i915_displayport_test_type_show,
3884 static const struct file_operations i915_displayport_test_type_fops = {
3885 .owner = THIS_MODULE,
3886 .open = i915_displayport_test_type_open,
3888 .llseek = seq_lseek,
3889 .release = single_release
3892 static void wm_latency_show(struct seq_file *m, const uint16_t wm[8])
3894 struct drm_i915_private *dev_priv = m->private;
3895 struct drm_device *dev = &dev_priv->drm;
3899 if (IS_CHERRYVIEW(dev_priv))
3901 else if (IS_VALLEYVIEW(dev_priv))
3904 num_levels = ilk_wm_max_level(dev_priv) + 1;
3906 drm_modeset_lock_all(dev);
3908 for (level = 0; level < num_levels; level++) {
3909 unsigned int latency = wm[level];
3912 * - WM1+ latency values in 0.5us units
3913 * - latencies are in us on gen9/vlv/chv
3915 if (INTEL_GEN(dev_priv) >= 9 || IS_VALLEYVIEW(dev_priv) ||
3916 IS_CHERRYVIEW(dev_priv))
3921 seq_printf(m, "WM%d %u (%u.%u usec)\n",
3922 level, wm[level], latency / 10, latency % 10);
3925 drm_modeset_unlock_all(dev);
3928 static int pri_wm_latency_show(struct seq_file *m, void *data)
3930 struct drm_i915_private *dev_priv = m->private;
3931 const uint16_t *latencies;
3933 if (INTEL_GEN(dev_priv) >= 9)
3934 latencies = dev_priv->wm.skl_latency;
3936 latencies = dev_priv->wm.pri_latency;
3938 wm_latency_show(m, latencies);
3943 static int spr_wm_latency_show(struct seq_file *m, void *data)
3945 struct drm_i915_private *dev_priv = m->private;
3946 const uint16_t *latencies;
3948 if (INTEL_GEN(dev_priv) >= 9)
3949 latencies = dev_priv->wm.skl_latency;
3951 latencies = dev_priv->wm.spr_latency;
3953 wm_latency_show(m, latencies);
3958 static int cur_wm_latency_show(struct seq_file *m, void *data)
3960 struct drm_i915_private *dev_priv = m->private;
3961 const uint16_t *latencies;
3963 if (INTEL_GEN(dev_priv) >= 9)
3964 latencies = dev_priv->wm.skl_latency;
3966 latencies = dev_priv->wm.cur_latency;
3968 wm_latency_show(m, latencies);
3973 static int pri_wm_latency_open(struct inode *inode, struct file *file)
3975 struct drm_i915_private *dev_priv = inode->i_private;
3977 if (INTEL_GEN(dev_priv) < 5)
3980 return single_open(file, pri_wm_latency_show, dev_priv);
3983 static int spr_wm_latency_open(struct inode *inode, struct file *file)
3985 struct drm_i915_private *dev_priv = inode->i_private;
3987 if (HAS_GMCH_DISPLAY(dev_priv))
3990 return single_open(file, spr_wm_latency_show, dev_priv);
3993 static int cur_wm_latency_open(struct inode *inode, struct file *file)
3995 struct drm_i915_private *dev_priv = inode->i_private;
3997 if (HAS_GMCH_DISPLAY(dev_priv))
4000 return single_open(file, cur_wm_latency_show, dev_priv);
4003 static ssize_t wm_latency_write(struct file *file, const char __user *ubuf,
4004 size_t len, loff_t *offp, uint16_t wm[8])
4006 struct seq_file *m = file->private_data;
4007 struct drm_i915_private *dev_priv = m->private;
4008 struct drm_device *dev = &dev_priv->drm;
4009 uint16_t new[8] = { 0 };
4015 if (IS_CHERRYVIEW(dev_priv))
4017 else if (IS_VALLEYVIEW(dev_priv))
4020 num_levels = ilk_wm_max_level(dev_priv) + 1;
4022 if (len >= sizeof(tmp))
4025 if (copy_from_user(tmp, ubuf, len))
4030 ret = sscanf(tmp, "%hu %hu %hu %hu %hu %hu %hu %hu",
4031 &new[0], &new[1], &new[2], &new[3],
4032 &new[4], &new[5], &new[6], &new[7]);
4033 if (ret != num_levels)
4036 drm_modeset_lock_all(dev);
4038 for (level = 0; level < num_levels; level++)
4039 wm[level] = new[level];
4041 drm_modeset_unlock_all(dev);
4047 static ssize_t pri_wm_latency_write(struct file *file, const char __user *ubuf,
4048 size_t len, loff_t *offp)
4050 struct seq_file *m = file->private_data;
4051 struct drm_i915_private *dev_priv = m->private;
4052 uint16_t *latencies;
4054 if (INTEL_GEN(dev_priv) >= 9)
4055 latencies = dev_priv->wm.skl_latency;
4057 latencies = dev_priv->wm.pri_latency;
4059 return wm_latency_write(file, ubuf, len, offp, latencies);
4062 static ssize_t spr_wm_latency_write(struct file *file, const char __user *ubuf,
4063 size_t len, loff_t *offp)
4065 struct seq_file *m = file->private_data;
4066 struct drm_i915_private *dev_priv = m->private;
4067 uint16_t *latencies;
4069 if (INTEL_GEN(dev_priv) >= 9)
4070 latencies = dev_priv->wm.skl_latency;
4072 latencies = dev_priv->wm.spr_latency;
4074 return wm_latency_write(file, ubuf, len, offp, latencies);
4077 static ssize_t cur_wm_latency_write(struct file *file, const char __user *ubuf,
4078 size_t len, loff_t *offp)
4080 struct seq_file *m = file->private_data;
4081 struct drm_i915_private *dev_priv = m->private;
4082 uint16_t *latencies;
4084 if (INTEL_GEN(dev_priv) >= 9)
4085 latencies = dev_priv->wm.skl_latency;
4087 latencies = dev_priv->wm.cur_latency;
4089 return wm_latency_write(file, ubuf, len, offp, latencies);
4092 static const struct file_operations i915_pri_wm_latency_fops = {
4093 .owner = THIS_MODULE,
4094 .open = pri_wm_latency_open,
4096 .llseek = seq_lseek,
4097 .release = single_release,
4098 .write = pri_wm_latency_write
4101 static const struct file_operations i915_spr_wm_latency_fops = {
4102 .owner = THIS_MODULE,
4103 .open = spr_wm_latency_open,
4105 .llseek = seq_lseek,
4106 .release = single_release,
4107 .write = spr_wm_latency_write
4110 static const struct file_operations i915_cur_wm_latency_fops = {
4111 .owner = THIS_MODULE,
4112 .open = cur_wm_latency_open,
4114 .llseek = seq_lseek,
4115 .release = single_release,
4116 .write = cur_wm_latency_write
4120 i915_wedged_get(void *data, u64 *val)
4122 struct drm_i915_private *dev_priv = data;
4124 *val = i915_terminally_wedged(&dev_priv->gpu_error);
4130 i915_wedged_set(void *data, u64 val)
4132 struct drm_i915_private *i915 = data;
4133 struct intel_engine_cs *engine;
4137 * There is no safeguard against this debugfs entry colliding
4138 * with the hangcheck calling same i915_handle_error() in
4139 * parallel, causing an explosion. For now we assume that the
4140 * test harness is responsible enough not to inject gpu hangs
4141 * while it is writing to 'i915_wedged'
4144 if (i915_reset_backoff(&i915->gpu_error))
4147 for_each_engine_masked(engine, i915, val, tmp) {
4148 engine->hangcheck.seqno = intel_engine_get_seqno(engine);
4149 engine->hangcheck.stalled = true;
4152 i915_handle_error(i915, val, "Manually setting wedged to %llu", val);
4154 wait_on_bit(&i915->gpu_error.flags,
4156 TASK_UNINTERRUPTIBLE);
4161 DEFINE_SIMPLE_ATTRIBUTE(i915_wedged_fops,
4162 i915_wedged_get, i915_wedged_set,
4166 fault_irq_set(struct drm_i915_private *i915,
4172 err = mutex_lock_interruptible(&i915->drm.struct_mutex);
4176 err = i915_gem_wait_for_idle(i915,
4178 I915_WAIT_INTERRUPTIBLE);
4183 mutex_unlock(&i915->drm.struct_mutex);
4185 /* Flush idle worker to disarm irq */
4186 while (flush_delayed_work(&i915->gt.idle_work))
4192 mutex_unlock(&i915->drm.struct_mutex);
4197 i915_ring_missed_irq_get(void *data, u64 *val)
4199 struct drm_i915_private *dev_priv = data;
4201 *val = dev_priv->gpu_error.missed_irq_rings;
4206 i915_ring_missed_irq_set(void *data, u64 val)
4208 struct drm_i915_private *i915 = data;
4210 return fault_irq_set(i915, &i915->gpu_error.missed_irq_rings, val);
4213 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_missed_irq_fops,
4214 i915_ring_missed_irq_get, i915_ring_missed_irq_set,
4218 i915_ring_test_irq_get(void *data, u64 *val)
4220 struct drm_i915_private *dev_priv = data;
4222 *val = dev_priv->gpu_error.test_irq_rings;
4228 i915_ring_test_irq_set(void *data, u64 val)
4230 struct drm_i915_private *i915 = data;
4232 val &= INTEL_INFO(i915)->ring_mask;
4233 DRM_DEBUG_DRIVER("Masking interrupts on rings 0x%08llx\n", val);
4235 return fault_irq_set(i915, &i915->gpu_error.test_irq_rings, val);
4238 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_test_irq_fops,
4239 i915_ring_test_irq_get, i915_ring_test_irq_set,
4242 #define DROP_UNBOUND 0x1
4243 #define DROP_BOUND 0x2
4244 #define DROP_RETIRE 0x4
4245 #define DROP_ACTIVE 0x8
4246 #define DROP_FREED 0x10
4247 #define DROP_SHRINK_ALL 0x20
4248 #define DROP_ALL (DROP_UNBOUND | \
4255 i915_drop_caches_get(void *data, u64 *val)
4263 i915_drop_caches_set(void *data, u64 val)
4265 struct drm_i915_private *dev_priv = data;
4266 struct drm_device *dev = &dev_priv->drm;
4269 DRM_DEBUG("Dropping caches: 0x%08llx\n", val);
4271 /* No need to check and wait for gpu resets, only libdrm auto-restarts
4272 * on ioctls on -EAGAIN. */
4273 ret = mutex_lock_interruptible(&dev->struct_mutex);
4277 if (val & DROP_ACTIVE) {
4278 ret = i915_gem_wait_for_idle(dev_priv,
4279 I915_WAIT_INTERRUPTIBLE |
4285 if (val & DROP_RETIRE)
4286 i915_gem_retire_requests(dev_priv);
4288 lockdep_set_current_reclaim_state(GFP_KERNEL);
4289 if (val & DROP_BOUND)
4290 i915_gem_shrink(dev_priv, LONG_MAX, I915_SHRINK_BOUND);
4292 if (val & DROP_UNBOUND)
4293 i915_gem_shrink(dev_priv, LONG_MAX, I915_SHRINK_UNBOUND);
4295 if (val & DROP_SHRINK_ALL)
4296 i915_gem_shrink_all(dev_priv);
4297 lockdep_clear_current_reclaim_state();
4300 mutex_unlock(&dev->struct_mutex);
4302 if (val & DROP_FREED) {
4304 i915_gem_drain_freed_objects(dev_priv);
4310 DEFINE_SIMPLE_ATTRIBUTE(i915_drop_caches_fops,
4311 i915_drop_caches_get, i915_drop_caches_set,
4315 i915_max_freq_get(void *data, u64 *val)
4317 struct drm_i915_private *dev_priv = data;
4319 if (INTEL_GEN(dev_priv) < 6)
4322 *val = intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit);
4327 i915_max_freq_set(void *data, u64 val)
4329 struct drm_i915_private *dev_priv = data;
4333 if (INTEL_GEN(dev_priv) < 6)
4336 DRM_DEBUG_DRIVER("Manually setting max freq to %llu\n", val);
4338 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
4343 * Turbo will still be enabled, but won't go above the set value.
4345 val = intel_freq_opcode(dev_priv, val);
4347 hw_max = dev_priv->rps.max_freq;
4348 hw_min = dev_priv->rps.min_freq;
4350 if (val < hw_min || val > hw_max || val < dev_priv->rps.min_freq_softlimit) {
4351 mutex_unlock(&dev_priv->rps.hw_lock);
4355 dev_priv->rps.max_freq_softlimit = val;
4357 if (intel_set_rps(dev_priv, val))
4358 DRM_DEBUG_DRIVER("failed to update RPS to new softlimit\n");
4360 mutex_unlock(&dev_priv->rps.hw_lock);
4365 DEFINE_SIMPLE_ATTRIBUTE(i915_max_freq_fops,
4366 i915_max_freq_get, i915_max_freq_set,
4370 i915_min_freq_get(void *data, u64 *val)
4372 struct drm_i915_private *dev_priv = data;
4374 if (INTEL_GEN(dev_priv) < 6)
4377 *val = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit);
4382 i915_min_freq_set(void *data, u64 val)
4384 struct drm_i915_private *dev_priv = data;
4388 if (INTEL_GEN(dev_priv) < 6)
4391 DRM_DEBUG_DRIVER("Manually setting min freq to %llu\n", val);
4393 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
4398 * Turbo will still be enabled, but won't go below the set value.
4400 val = intel_freq_opcode(dev_priv, val);
4402 hw_max = dev_priv->rps.max_freq;
4403 hw_min = dev_priv->rps.min_freq;
4406 val > hw_max || val > dev_priv->rps.max_freq_softlimit) {
4407 mutex_unlock(&dev_priv->rps.hw_lock);
4411 dev_priv->rps.min_freq_softlimit = val;
4413 if (intel_set_rps(dev_priv, val))
4414 DRM_DEBUG_DRIVER("failed to update RPS to new softlimit\n");
4416 mutex_unlock(&dev_priv->rps.hw_lock);
4421 DEFINE_SIMPLE_ATTRIBUTE(i915_min_freq_fops,
4422 i915_min_freq_get, i915_min_freq_set,
4426 i915_cache_sharing_get(void *data, u64 *val)
4428 struct drm_i915_private *dev_priv = data;
4431 if (!(IS_GEN6(dev_priv) || IS_GEN7(dev_priv)))
4434 intel_runtime_pm_get(dev_priv);
4436 snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
4438 intel_runtime_pm_put(dev_priv);
4440 *val = (snpcr & GEN6_MBC_SNPCR_MASK) >> GEN6_MBC_SNPCR_SHIFT;
4446 i915_cache_sharing_set(void *data, u64 val)
4448 struct drm_i915_private *dev_priv = data;
4451 if (!(IS_GEN6(dev_priv) || IS_GEN7(dev_priv)))
4457 intel_runtime_pm_get(dev_priv);
4458 DRM_DEBUG_DRIVER("Manually setting uncore sharing to %llu\n", val);
4460 /* Update the cache sharing policy here as well */
4461 snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
4462 snpcr &= ~GEN6_MBC_SNPCR_MASK;
4463 snpcr |= (val << GEN6_MBC_SNPCR_SHIFT);
4464 I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr);
4466 intel_runtime_pm_put(dev_priv);
4470 DEFINE_SIMPLE_ATTRIBUTE(i915_cache_sharing_fops,
4471 i915_cache_sharing_get, i915_cache_sharing_set,
4474 static void cherryview_sseu_device_status(struct drm_i915_private *dev_priv,
4475 struct sseu_dev_info *sseu)
4479 u32 sig1[ss_max], sig2[ss_max];
4481 sig1[0] = I915_READ(CHV_POWER_SS0_SIG1);
4482 sig1[1] = I915_READ(CHV_POWER_SS1_SIG1);
4483 sig2[0] = I915_READ(CHV_POWER_SS0_SIG2);
4484 sig2[1] = I915_READ(CHV_POWER_SS1_SIG2);
4486 for (ss = 0; ss < ss_max; ss++) {
4487 unsigned int eu_cnt;
4489 if (sig1[ss] & CHV_SS_PG_ENABLE)
4490 /* skip disabled subslice */
4493 sseu->slice_mask = BIT(0);
4494 sseu->subslice_mask |= BIT(ss);
4495 eu_cnt = ((sig1[ss] & CHV_EU08_PG_ENABLE) ? 0 : 2) +
4496 ((sig1[ss] & CHV_EU19_PG_ENABLE) ? 0 : 2) +
4497 ((sig1[ss] & CHV_EU210_PG_ENABLE) ? 0 : 2) +
4498 ((sig2[ss] & CHV_EU311_PG_ENABLE) ? 0 : 2);
4499 sseu->eu_total += eu_cnt;
4500 sseu->eu_per_subslice = max_t(unsigned int,
4501 sseu->eu_per_subslice, eu_cnt);
4505 static void gen9_sseu_device_status(struct drm_i915_private *dev_priv,
4506 struct sseu_dev_info *sseu)
4508 int s_max = 3, ss_max = 4;
4510 u32 s_reg[s_max], eu_reg[2*s_max], eu_mask[2];
4512 /* BXT has a single slice and at most 3 subslices. */
4513 if (IS_GEN9_LP(dev_priv)) {
4518 for (s = 0; s < s_max; s++) {
4519 s_reg[s] = I915_READ(GEN9_SLICE_PGCTL_ACK(s));
4520 eu_reg[2*s] = I915_READ(GEN9_SS01_EU_PGCTL_ACK(s));
4521 eu_reg[2*s + 1] = I915_READ(GEN9_SS23_EU_PGCTL_ACK(s));
4524 eu_mask[0] = GEN9_PGCTL_SSA_EU08_ACK |
4525 GEN9_PGCTL_SSA_EU19_ACK |
4526 GEN9_PGCTL_SSA_EU210_ACK |
4527 GEN9_PGCTL_SSA_EU311_ACK;
4528 eu_mask[1] = GEN9_PGCTL_SSB_EU08_ACK |
4529 GEN9_PGCTL_SSB_EU19_ACK |
4530 GEN9_PGCTL_SSB_EU210_ACK |
4531 GEN9_PGCTL_SSB_EU311_ACK;
4533 for (s = 0; s < s_max; s++) {
4534 if ((s_reg[s] & GEN9_PGCTL_SLICE_ACK) == 0)
4535 /* skip disabled slice */
4538 sseu->slice_mask |= BIT(s);
4540 if (IS_GEN9_BC(dev_priv))
4541 sseu->subslice_mask =
4542 INTEL_INFO(dev_priv)->sseu.subslice_mask;
4544 for (ss = 0; ss < ss_max; ss++) {
4545 unsigned int eu_cnt;
4547 if (IS_GEN9_LP(dev_priv)) {
4548 if (!(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss))))
4549 /* skip disabled subslice */
4552 sseu->subslice_mask |= BIT(ss);
4555 eu_cnt = 2 * hweight32(eu_reg[2*s + ss/2] &
4557 sseu->eu_total += eu_cnt;
4558 sseu->eu_per_subslice = max_t(unsigned int,
4559 sseu->eu_per_subslice,
4565 static void broadwell_sseu_device_status(struct drm_i915_private *dev_priv,
4566 struct sseu_dev_info *sseu)
4568 u32 slice_info = I915_READ(GEN8_GT_SLICE_INFO);
4571 sseu->slice_mask = slice_info & GEN8_LSLICESTAT_MASK;
4573 if (sseu->slice_mask) {
4574 sseu->subslice_mask = INTEL_INFO(dev_priv)->sseu.subslice_mask;
4575 sseu->eu_per_subslice =
4576 INTEL_INFO(dev_priv)->sseu.eu_per_subslice;
4577 sseu->eu_total = sseu->eu_per_subslice *
4578 sseu_subslice_total(sseu);
4580 /* subtract fused off EU(s) from enabled slice(s) */
4581 for (s = 0; s < fls(sseu->slice_mask); s++) {
4583 INTEL_INFO(dev_priv)->sseu.subslice_7eu[s];
4585 sseu->eu_total -= hweight8(subslice_7eu);
4590 static void i915_print_sseu_info(struct seq_file *m, bool is_available_info,
4591 const struct sseu_dev_info *sseu)
4593 struct drm_i915_private *dev_priv = node_to_i915(m->private);
4594 const char *type = is_available_info ? "Available" : "Enabled";
4596 seq_printf(m, " %s Slice Mask: %04x\n", type,
4598 seq_printf(m, " %s Slice Total: %u\n", type,
4599 hweight8(sseu->slice_mask));
4600 seq_printf(m, " %s Subslice Total: %u\n", type,
4601 sseu_subslice_total(sseu));
4602 seq_printf(m, " %s Subslice Mask: %04x\n", type,
4603 sseu->subslice_mask);
4604 seq_printf(m, " %s Subslice Per Slice: %u\n", type,
4605 hweight8(sseu->subslice_mask));
4606 seq_printf(m, " %s EU Total: %u\n", type,
4608 seq_printf(m, " %s EU Per Subslice: %u\n", type,
4609 sseu->eu_per_subslice);
4611 if (!is_available_info)
4614 seq_printf(m, " Has Pooled EU: %s\n", yesno(HAS_POOLED_EU(dev_priv)));
4615 if (HAS_POOLED_EU(dev_priv))
4616 seq_printf(m, " Min EU in pool: %u\n", sseu->min_eu_in_pool);
4618 seq_printf(m, " Has Slice Power Gating: %s\n",
4619 yesno(sseu->has_slice_pg));
4620 seq_printf(m, " Has Subslice Power Gating: %s\n",
4621 yesno(sseu->has_subslice_pg));
4622 seq_printf(m, " Has EU Power Gating: %s\n",
4623 yesno(sseu->has_eu_pg));
4626 static int i915_sseu_status(struct seq_file *m, void *unused)
4628 struct drm_i915_private *dev_priv = node_to_i915(m->private);
4629 struct sseu_dev_info sseu;
4631 if (INTEL_GEN(dev_priv) < 8)
4634 seq_puts(m, "SSEU Device Info\n");
4635 i915_print_sseu_info(m, true, &INTEL_INFO(dev_priv)->sseu);
4637 seq_puts(m, "SSEU Device Status\n");
4638 memset(&sseu, 0, sizeof(sseu));
4640 intel_runtime_pm_get(dev_priv);
4642 if (IS_CHERRYVIEW(dev_priv)) {
4643 cherryview_sseu_device_status(dev_priv, &sseu);
4644 } else if (IS_BROADWELL(dev_priv)) {
4645 broadwell_sseu_device_status(dev_priv, &sseu);
4646 } else if (INTEL_GEN(dev_priv) >= 9) {
4647 gen9_sseu_device_status(dev_priv, &sseu);
4650 intel_runtime_pm_put(dev_priv);
4652 i915_print_sseu_info(m, false, &sseu);
4657 static int i915_forcewake_open(struct inode *inode, struct file *file)
4659 struct drm_i915_private *dev_priv = inode->i_private;
4661 if (INTEL_GEN(dev_priv) < 6)
4664 intel_runtime_pm_get(dev_priv);
4665 intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
4670 static int i915_forcewake_release(struct inode *inode, struct file *file)
4672 struct drm_i915_private *dev_priv = inode->i_private;
4674 if (INTEL_GEN(dev_priv) < 6)
4677 intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
4678 intel_runtime_pm_put(dev_priv);
4683 static const struct file_operations i915_forcewake_fops = {
4684 .owner = THIS_MODULE,
4685 .open = i915_forcewake_open,
4686 .release = i915_forcewake_release,
4689 static int i915_hpd_storm_ctl_show(struct seq_file *m, void *data)
4691 struct drm_i915_private *dev_priv = m->private;
4692 struct i915_hotplug *hotplug = &dev_priv->hotplug;
4694 seq_printf(m, "Threshold: %d\n", hotplug->hpd_storm_threshold);
4695 seq_printf(m, "Detected: %s\n",
4696 yesno(delayed_work_pending(&hotplug->reenable_work)));
4701 static ssize_t i915_hpd_storm_ctl_write(struct file *file,
4702 const char __user *ubuf, size_t len,
4705 struct seq_file *m = file->private_data;
4706 struct drm_i915_private *dev_priv = m->private;
4707 struct i915_hotplug *hotplug = &dev_priv->hotplug;
4708 unsigned int new_threshold;
4713 if (len >= sizeof(tmp))
4716 if (copy_from_user(tmp, ubuf, len))
4721 /* Strip newline, if any */
4722 newline = strchr(tmp, '\n');
4726 if (strcmp(tmp, "reset") == 0)
4727 new_threshold = HPD_STORM_DEFAULT_THRESHOLD;
4728 else if (kstrtouint(tmp, 10, &new_threshold) != 0)
4731 if (new_threshold > 0)
4732 DRM_DEBUG_KMS("Setting HPD storm detection threshold to %d\n",
4735 DRM_DEBUG_KMS("Disabling HPD storm detection\n");
4737 spin_lock_irq(&dev_priv->irq_lock);
4738 hotplug->hpd_storm_threshold = new_threshold;
4739 /* Reset the HPD storm stats so we don't accidentally trigger a storm */
4741 hotplug->stats[i].count = 0;
4742 spin_unlock_irq(&dev_priv->irq_lock);
4744 /* Re-enable hpd immediately if we were in an irq storm */
4745 flush_delayed_work(&dev_priv->hotplug.reenable_work);
4750 static int i915_hpd_storm_ctl_open(struct inode *inode, struct file *file)
4752 return single_open(file, i915_hpd_storm_ctl_show, inode->i_private);
4755 static const struct file_operations i915_hpd_storm_ctl_fops = {
4756 .owner = THIS_MODULE,
4757 .open = i915_hpd_storm_ctl_open,
4759 .llseek = seq_lseek,
4760 .release = single_release,
4761 .write = i915_hpd_storm_ctl_write
4764 static const struct drm_info_list i915_debugfs_list[] = {
4765 {"i915_capabilities", i915_capabilities, 0},
4766 {"i915_gem_objects", i915_gem_object_info, 0},
4767 {"i915_gem_gtt", i915_gem_gtt_info, 0},
4768 {"i915_gem_pin_display", i915_gem_gtt_info, 0, (void *)1},
4769 {"i915_gem_stolen", i915_gem_stolen_list_info },
4770 {"i915_gem_pageflip", i915_gem_pageflip_info, 0},
4771 {"i915_gem_request", i915_gem_request_info, 0},
4772 {"i915_gem_seqno", i915_gem_seqno_info, 0},
4773 {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
4774 {"i915_gem_interrupt", i915_interrupt_info, 0},
4775 {"i915_gem_batch_pool", i915_gem_batch_pool_info, 0},
4776 {"i915_guc_info", i915_guc_info, 0},
4777 {"i915_guc_load_status", i915_guc_load_status_info, 0},
4778 {"i915_guc_log_dump", i915_guc_log_dump, 0},
4779 {"i915_huc_load_status", i915_huc_load_status_info, 0},
4780 {"i915_frequency_info", i915_frequency_info, 0},
4781 {"i915_hangcheck_info", i915_hangcheck_info, 0},
4782 {"i915_drpc_info", i915_drpc_info, 0},
4783 {"i915_emon_status", i915_emon_status, 0},
4784 {"i915_ring_freq_table", i915_ring_freq_table, 0},
4785 {"i915_frontbuffer_tracking", i915_frontbuffer_tracking, 0},
4786 {"i915_fbc_status", i915_fbc_status, 0},
4787 {"i915_ips_status", i915_ips_status, 0},
4788 {"i915_sr_status", i915_sr_status, 0},
4789 {"i915_opregion", i915_opregion, 0},
4790 {"i915_vbt", i915_vbt, 0},
4791 {"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
4792 {"i915_context_status", i915_context_status, 0},
4793 {"i915_dump_lrc", i915_dump_lrc, 0},
4794 {"i915_forcewake_domains", i915_forcewake_domains, 0},
4795 {"i915_swizzle_info", i915_swizzle_info, 0},
4796 {"i915_ppgtt_info", i915_ppgtt_info, 0},
4797 {"i915_llc", i915_llc, 0},
4798 {"i915_edp_psr_status", i915_edp_psr_status, 0},
4799 {"i915_sink_crc_eDP1", i915_sink_crc, 0},
4800 {"i915_energy_uJ", i915_energy_uJ, 0},
4801 {"i915_runtime_pm_status", i915_runtime_pm_status, 0},
4802 {"i915_power_domain_info", i915_power_domain_info, 0},
4803 {"i915_dmc_info", i915_dmc_info, 0},
4804 {"i915_display_info", i915_display_info, 0},
4805 {"i915_engine_info", i915_engine_info, 0},
4806 {"i915_semaphore_status", i915_semaphore_status, 0},
4807 {"i915_shared_dplls_info", i915_shared_dplls_info, 0},
4808 {"i915_dp_mst_info", i915_dp_mst_info, 0},
4809 {"i915_wa_registers", i915_wa_registers, 0},
4810 {"i915_ddb_info", i915_ddb_info, 0},
4811 {"i915_sseu_status", i915_sseu_status, 0},
4812 {"i915_drrs_status", i915_drrs_status, 0},
4813 {"i915_rps_boost_info", i915_rps_boost_info, 0},
4815 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
4817 static const struct i915_debugfs_files {
4819 const struct file_operations *fops;
4820 } i915_debugfs_files[] = {
4821 {"i915_wedged", &i915_wedged_fops},
4822 {"i915_max_freq", &i915_max_freq_fops},
4823 {"i915_min_freq", &i915_min_freq_fops},
4824 {"i915_cache_sharing", &i915_cache_sharing_fops},
4825 {"i915_ring_missed_irq", &i915_ring_missed_irq_fops},
4826 {"i915_ring_test_irq", &i915_ring_test_irq_fops},
4827 {"i915_gem_drop_caches", &i915_drop_caches_fops},
4828 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
4829 {"i915_error_state", &i915_error_state_fops},
4830 {"i915_gpu_info", &i915_gpu_info_fops},
4832 {"i915_next_seqno", &i915_next_seqno_fops},
4833 {"i915_display_crc_ctl", &i915_display_crc_ctl_fops},
4834 {"i915_pri_wm_latency", &i915_pri_wm_latency_fops},
4835 {"i915_spr_wm_latency", &i915_spr_wm_latency_fops},
4836 {"i915_cur_wm_latency", &i915_cur_wm_latency_fops},
4837 {"i915_fbc_false_color", &i915_fbc_fc_fops},
4838 {"i915_dp_test_data", &i915_displayport_test_data_fops},
4839 {"i915_dp_test_type", &i915_displayport_test_type_fops},
4840 {"i915_dp_test_active", &i915_displayport_test_active_fops},
4841 {"i915_guc_log_control", &i915_guc_log_control_fops},
4842 {"i915_hpd_storm_ctl", &i915_hpd_storm_ctl_fops}
4845 int i915_debugfs_register(struct drm_i915_private *dev_priv)
4847 struct drm_minor *minor = dev_priv->drm.primary;
4851 ent = debugfs_create_file("i915_forcewake_user", S_IRUSR,
4852 minor->debugfs_root, to_i915(minor->dev),
4853 &i915_forcewake_fops);
4857 ret = intel_pipe_crc_create(minor);
4861 for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
4862 ent = debugfs_create_file(i915_debugfs_files[i].name,
4864 minor->debugfs_root,
4865 to_i915(minor->dev),
4866 i915_debugfs_files[i].fops);
4871 return drm_debugfs_create_files(i915_debugfs_list,
4872 I915_DEBUGFS_ENTRIES,
4873 minor->debugfs_root, minor);
4877 /* DPCD dump start address. */
4878 unsigned int offset;
4879 /* DPCD dump end address, inclusive. If unset, .size will be used. */
4881 /* DPCD dump size. Used if .end is unset. If unset, defaults to 1. */
4883 /* Only valid for eDP. */
4887 static const struct dpcd_block i915_dpcd_debug[] = {
4888 { .offset = DP_DPCD_REV, .size = DP_RECEIVER_CAP_SIZE },
4889 { .offset = DP_PSR_SUPPORT, .end = DP_PSR_CAPS },
4890 { .offset = DP_DOWNSTREAM_PORT_0, .size = 16 },
4891 { .offset = DP_LINK_BW_SET, .end = DP_EDP_CONFIGURATION_SET },
4892 { .offset = DP_SINK_COUNT, .end = DP_ADJUST_REQUEST_LANE2_3 },
4893 { .offset = DP_SET_POWER },
4894 { .offset = DP_EDP_DPCD_REV },
4895 { .offset = DP_EDP_GENERAL_CAP_1, .end = DP_EDP_GENERAL_CAP_3 },
4896 { .offset = DP_EDP_DISPLAY_CONTROL_REGISTER, .end = DP_EDP_BACKLIGHT_FREQ_CAP_MAX_LSB },
4897 { .offset = DP_EDP_DBC_MINIMUM_BRIGHTNESS_SET, .end = DP_EDP_DBC_MAXIMUM_BRIGHTNESS_SET },
4900 static int i915_dpcd_show(struct seq_file *m, void *data)
4902 struct drm_connector *connector = m->private;
4903 struct intel_dp *intel_dp =
4904 enc_to_intel_dp(&intel_attached_encoder(connector)->base);
4909 if (connector->status != connector_status_connected)
4912 for (i = 0; i < ARRAY_SIZE(i915_dpcd_debug); i++) {
4913 const struct dpcd_block *b = &i915_dpcd_debug[i];
4914 size_t size = b->end ? b->end - b->offset + 1 : (b->size ?: 1);
4917 connector->connector_type != DRM_MODE_CONNECTOR_eDP)
4920 /* low tech for now */
4921 if (WARN_ON(size > sizeof(buf)))
4924 err = drm_dp_dpcd_read(&intel_dp->aux, b->offset, buf, size);
4926 DRM_ERROR("dpcd read (%zu bytes at %u) failed (%zd)\n",
4927 size, b->offset, err);
4931 seq_printf(m, "%04x: %*ph\n", b->offset, (int) size, buf);
4937 static int i915_dpcd_open(struct inode *inode, struct file *file)
4939 return single_open(file, i915_dpcd_show, inode->i_private);
4942 static const struct file_operations i915_dpcd_fops = {
4943 .owner = THIS_MODULE,
4944 .open = i915_dpcd_open,
4946 .llseek = seq_lseek,
4947 .release = single_release,
4950 static int i915_panel_show(struct seq_file *m, void *data)
4952 struct drm_connector *connector = m->private;
4953 struct intel_dp *intel_dp =
4954 enc_to_intel_dp(&intel_attached_encoder(connector)->base);
4956 if (connector->status != connector_status_connected)
4959 seq_printf(m, "Panel power up delay: %d\n",
4960 intel_dp->panel_power_up_delay);
4961 seq_printf(m, "Panel power down delay: %d\n",
4962 intel_dp->panel_power_down_delay);
4963 seq_printf(m, "Backlight on delay: %d\n",
4964 intel_dp->backlight_on_delay);
4965 seq_printf(m, "Backlight off delay: %d\n",
4966 intel_dp->backlight_off_delay);
4971 static int i915_panel_open(struct inode *inode, struct file *file)
4973 return single_open(file, i915_panel_show, inode->i_private);
4976 static const struct file_operations i915_panel_fops = {
4977 .owner = THIS_MODULE,
4978 .open = i915_panel_open,
4980 .llseek = seq_lseek,
4981 .release = single_release,
4985 * i915_debugfs_connector_add - add i915 specific connector debugfs files
4986 * @connector: pointer to a registered drm_connector
4988 * Cleanup will be done by drm_connector_unregister() through a call to
4989 * drm_debugfs_connector_remove().
4991 * Returns 0 on success, negative error codes on error.
4993 int i915_debugfs_connector_add(struct drm_connector *connector)
4995 struct dentry *root = connector->debugfs_entry;
4997 /* The connector must have been registered beforehands. */
5001 if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
5002 connector->connector_type == DRM_MODE_CONNECTOR_eDP)
5003 debugfs_create_file("i915_dpcd", S_IRUGO, root,
5004 connector, &i915_dpcd_fops);
5006 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP)
5007 debugfs_create_file("i915_panel_timings", S_IRUGO, root,
5008 connector, &i915_panel_fops);