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/seq_file.h>
30 #include <linux/circ_buf.h>
31 #include <linux/ctype.h>
32 #include <linux/debugfs.h>
33 #include <linux/slab.h>
34 #include <linux/export.h>
35 #include <linux/list_sort.h>
36 #include <asm/msr-index.h>
38 #include "intel_drv.h"
39 #include "intel_ringbuffer.h"
40 #include <drm/i915_drm.h>
43 static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node)
45 return to_i915(node->minor->dev);
48 /* As the drm_debugfs_init() routines are called before dev->dev_private is
49 * allocated we need to hook into the minor for release. */
51 drm_add_fake_info_node(struct drm_minor *minor,
55 struct drm_info_node *node;
57 node = kmalloc(sizeof(*node), GFP_KERNEL);
65 node->info_ent = (void *)key;
67 mutex_lock(&minor->debugfs_lock);
68 list_add(&node->list, &minor->debugfs_list);
69 mutex_unlock(&minor->debugfs_lock);
74 static int i915_capabilities(struct seq_file *m, void *data)
76 struct drm_i915_private *dev_priv = node_to_i915(m->private);
77 const struct intel_device_info *info = INTEL_INFO(dev_priv);
79 seq_printf(m, "gen: %d\n", INTEL_GEN(dev_priv));
80 seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev_priv));
81 #define PRINT_FLAG(x) seq_printf(m, #x ": %s\n", yesno(info->x))
82 DEV_INFO_FOR_EACH_FLAG(PRINT_FLAG);
88 static char get_active_flag(struct drm_i915_gem_object *obj)
90 return i915_gem_object_is_active(obj) ? '*' : ' ';
93 static char get_pin_flag(struct drm_i915_gem_object *obj)
95 return obj->pin_display ? 'p' : ' ';
98 static char get_tiling_flag(struct drm_i915_gem_object *obj)
100 switch (i915_gem_object_get_tiling(obj)) {
102 case I915_TILING_NONE: return ' ';
103 case I915_TILING_X: return 'X';
104 case I915_TILING_Y: return 'Y';
108 static char get_global_flag(struct drm_i915_gem_object *obj)
110 return !list_empty(&obj->userfault_link) ? 'g' : ' ';
113 static char get_pin_mapped_flag(struct drm_i915_gem_object *obj)
115 return obj->mapping ? 'M' : ' ';
118 static u64 i915_gem_obj_total_ggtt_size(struct drm_i915_gem_object *obj)
121 struct i915_vma *vma;
123 list_for_each_entry(vma, &obj->vma_list, obj_link) {
124 if (i915_vma_is_ggtt(vma) && drm_mm_node_allocated(&vma->node))
125 size += vma->node.size;
132 describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
134 struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
135 struct intel_engine_cs *engine;
136 struct i915_vma *vma;
137 unsigned int frontbuffer_bits;
139 enum intel_engine_id id;
141 lockdep_assert_held(&obj->base.dev->struct_mutex);
143 seq_printf(m, "%pK: %c%c%c%c%c %8zdKiB %02x %02x [ ",
145 get_active_flag(obj),
147 get_tiling_flag(obj),
148 get_global_flag(obj),
149 get_pin_mapped_flag(obj),
150 obj->base.size / 1024,
151 obj->base.read_domains,
152 obj->base.write_domain);
153 for_each_engine(engine, dev_priv, id)
155 i915_gem_active_get_seqno(&obj->last_read[id],
156 &obj->base.dev->struct_mutex));
157 seq_printf(m, "] %x %s%s%s",
158 i915_gem_active_get_seqno(&obj->last_write,
159 &obj->base.dev->struct_mutex),
160 i915_cache_level_str(dev_priv, obj->cache_level),
161 obj->dirty ? " dirty" : "",
162 obj->madv == I915_MADV_DONTNEED ? " purgeable" : "");
164 seq_printf(m, " (name: %d)", obj->base.name);
165 list_for_each_entry(vma, &obj->vma_list, obj_link) {
166 if (i915_vma_is_pinned(vma))
169 seq_printf(m, " (pinned x %d)", pin_count);
170 if (obj->pin_display)
171 seq_printf(m, " (display)");
172 list_for_each_entry(vma, &obj->vma_list, obj_link) {
173 if (!drm_mm_node_allocated(&vma->node))
176 seq_printf(m, " (%sgtt offset: %08llx, size: %08llx",
177 i915_vma_is_ggtt(vma) ? "g" : "pp",
178 vma->node.start, vma->node.size);
179 if (i915_vma_is_ggtt(vma))
180 seq_printf(m, ", type: %u", vma->ggtt_view.type);
182 seq_printf(m, " , fence: %d%s",
184 i915_gem_active_isset(&vma->last_fence) ? "*" : "");
188 seq_printf(m, " (stolen: %08llx)", obj->stolen->start);
190 engine = i915_gem_active_get_engine(&obj->last_write,
191 &dev_priv->drm.struct_mutex);
193 seq_printf(m, " (%s)", engine->name);
195 frontbuffer_bits = atomic_read(&obj->frontbuffer_bits);
196 if (frontbuffer_bits)
197 seq_printf(m, " (frontbuffer: 0x%03x)", frontbuffer_bits);
200 static int obj_rank_by_stolen(void *priv,
201 struct list_head *A, struct list_head *B)
203 struct drm_i915_gem_object *a =
204 container_of(A, struct drm_i915_gem_object, obj_exec_link);
205 struct drm_i915_gem_object *b =
206 container_of(B, struct drm_i915_gem_object, obj_exec_link);
208 if (a->stolen->start < b->stolen->start)
210 if (a->stolen->start > b->stolen->start)
215 static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
217 struct drm_i915_private *dev_priv = node_to_i915(m->private);
218 struct drm_device *dev = &dev_priv->drm;
219 struct drm_i915_gem_object *obj;
220 u64 total_obj_size, total_gtt_size;
224 ret = mutex_lock_interruptible(&dev->struct_mutex);
228 total_obj_size = total_gtt_size = count = 0;
229 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
230 if (obj->stolen == NULL)
233 list_add(&obj->obj_exec_link, &stolen);
235 total_obj_size += obj->base.size;
236 total_gtt_size += i915_gem_obj_total_ggtt_size(obj);
239 list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) {
240 if (obj->stolen == NULL)
243 list_add(&obj->obj_exec_link, &stolen);
245 total_obj_size += obj->base.size;
248 list_sort(NULL, &stolen, obj_rank_by_stolen);
249 seq_puts(m, "Stolen:\n");
250 while (!list_empty(&stolen)) {
251 obj = list_first_entry(&stolen, typeof(*obj), obj_exec_link);
253 describe_obj(m, obj);
255 list_del_init(&obj->obj_exec_link);
257 mutex_unlock(&dev->struct_mutex);
259 seq_printf(m, "Total %d objects, %llu bytes, %llu GTT size\n",
260 count, total_obj_size, total_gtt_size);
265 struct drm_i915_file_private *file_priv;
269 u64 active, inactive;
272 static int per_file_stats(int id, void *ptr, void *data)
274 struct drm_i915_gem_object *obj = ptr;
275 struct file_stats *stats = data;
276 struct i915_vma *vma;
279 stats->total += obj->base.size;
280 if (!obj->bind_count)
281 stats->unbound += obj->base.size;
282 if (obj->base.name || obj->base.dma_buf)
283 stats->shared += obj->base.size;
285 list_for_each_entry(vma, &obj->vma_list, obj_link) {
286 if (!drm_mm_node_allocated(&vma->node))
289 if (i915_vma_is_ggtt(vma)) {
290 stats->global += vma->node.size;
292 struct i915_hw_ppgtt *ppgtt = i915_vm_to_ppgtt(vma->vm);
294 if (ppgtt->base.file != stats->file_priv)
298 if (i915_vma_is_active(vma))
299 stats->active += vma->node.size;
301 stats->inactive += vma->node.size;
307 #define print_file_stats(m, name, stats) do { \
309 seq_printf(m, "%s: %lu objects, %llu bytes (%llu active, %llu inactive, %llu global, %llu shared, %llu unbound)\n", \
320 static void print_batch_pool_stats(struct seq_file *m,
321 struct drm_i915_private *dev_priv)
323 struct drm_i915_gem_object *obj;
324 struct file_stats stats;
325 struct intel_engine_cs *engine;
326 enum intel_engine_id id;
329 memset(&stats, 0, sizeof(stats));
331 for_each_engine(engine, dev_priv, id) {
332 for (j = 0; j < ARRAY_SIZE(engine->batch_pool.cache_list); j++) {
333 list_for_each_entry(obj,
334 &engine->batch_pool.cache_list[j],
336 per_file_stats(0, obj, &stats);
340 print_file_stats(m, "[k]batch pool", stats);
343 static int per_file_ctx_stats(int id, void *ptr, void *data)
345 struct i915_gem_context *ctx = ptr;
348 for (n = 0; n < ARRAY_SIZE(ctx->engine); n++) {
349 if (ctx->engine[n].state)
350 per_file_stats(0, ctx->engine[n].state->obj, data);
351 if (ctx->engine[n].ring)
352 per_file_stats(0, ctx->engine[n].ring->vma->obj, data);
358 static void print_context_stats(struct seq_file *m,
359 struct drm_i915_private *dev_priv)
361 struct drm_device *dev = &dev_priv->drm;
362 struct file_stats stats;
363 struct drm_file *file;
365 memset(&stats, 0, sizeof(stats));
367 mutex_lock(&dev->struct_mutex);
368 if (dev_priv->kernel_context)
369 per_file_ctx_stats(0, dev_priv->kernel_context, &stats);
371 list_for_each_entry(file, &dev->filelist, lhead) {
372 struct drm_i915_file_private *fpriv = file->driver_priv;
373 idr_for_each(&fpriv->context_idr, per_file_ctx_stats, &stats);
375 mutex_unlock(&dev->struct_mutex);
377 print_file_stats(m, "[k]contexts", stats);
380 static int i915_gem_object_info(struct seq_file *m, void *data)
382 struct drm_i915_private *dev_priv = node_to_i915(m->private);
383 struct drm_device *dev = &dev_priv->drm;
384 struct i915_ggtt *ggtt = &dev_priv->ggtt;
385 u32 count, mapped_count, purgeable_count, dpy_count;
386 u64 size, mapped_size, purgeable_size, dpy_size;
387 struct drm_i915_gem_object *obj;
388 struct drm_file *file;
391 ret = mutex_lock_interruptible(&dev->struct_mutex);
395 seq_printf(m, "%u objects, %llu bytes\n",
396 dev_priv->mm.object_count,
397 dev_priv->mm.object_memory);
400 mapped_size = mapped_count = 0;
401 purgeable_size = purgeable_count = 0;
402 list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) {
403 size += obj->base.size;
406 if (obj->madv == I915_MADV_DONTNEED) {
407 purgeable_size += obj->base.size;
413 mapped_size += obj->base.size;
416 seq_printf(m, "%u unbound objects, %llu bytes\n", count, size);
418 size = count = dpy_size = dpy_count = 0;
419 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
420 size += obj->base.size;
423 if (obj->pin_display) {
424 dpy_size += obj->base.size;
428 if (obj->madv == I915_MADV_DONTNEED) {
429 purgeable_size += obj->base.size;
435 mapped_size += obj->base.size;
438 seq_printf(m, "%u bound objects, %llu bytes\n",
440 seq_printf(m, "%u purgeable objects, %llu bytes\n",
441 purgeable_count, purgeable_size);
442 seq_printf(m, "%u mapped objects, %llu bytes\n",
443 mapped_count, mapped_size);
444 seq_printf(m, "%u display objects (pinned), %llu bytes\n",
445 dpy_count, dpy_size);
447 seq_printf(m, "%llu [%llu] gtt total\n",
448 ggtt->base.total, ggtt->mappable_end - ggtt->base.start);
451 print_batch_pool_stats(m, dev_priv);
452 mutex_unlock(&dev->struct_mutex);
454 mutex_lock(&dev->filelist_mutex);
455 print_context_stats(m, dev_priv);
456 list_for_each_entry_reverse(file, &dev->filelist, lhead) {
457 struct file_stats stats;
458 struct drm_i915_file_private *file_priv = file->driver_priv;
459 struct drm_i915_gem_request *request;
460 struct task_struct *task;
462 memset(&stats, 0, sizeof(stats));
463 stats.file_priv = file->driver_priv;
464 spin_lock(&file->table_lock);
465 idr_for_each(&file->object_idr, per_file_stats, &stats);
466 spin_unlock(&file->table_lock);
468 * Although we have a valid reference on file->pid, that does
469 * not guarantee that the task_struct who called get_pid() is
470 * still alive (e.g. get_pid(current) => fork() => exit()).
471 * Therefore, we need to protect this ->comm access using RCU.
473 mutex_lock(&dev->struct_mutex);
474 request = list_first_entry_or_null(&file_priv->mm.request_list,
475 struct drm_i915_gem_request,
478 task = pid_task(request && request->ctx->pid ?
479 request->ctx->pid : file->pid,
481 print_file_stats(m, task ? task->comm : "<unknown>", stats);
483 mutex_unlock(&dev->struct_mutex);
485 mutex_unlock(&dev->filelist_mutex);
490 static int i915_gem_gtt_info(struct seq_file *m, void *data)
492 struct drm_info_node *node = m->private;
493 struct drm_i915_private *dev_priv = node_to_i915(node);
494 struct drm_device *dev = &dev_priv->drm;
495 bool show_pin_display_only = !!node->info_ent->data;
496 struct drm_i915_gem_object *obj;
497 u64 total_obj_size, total_gtt_size;
500 ret = mutex_lock_interruptible(&dev->struct_mutex);
504 total_obj_size = total_gtt_size = count = 0;
505 list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
506 if (show_pin_display_only && !obj->pin_display)
510 describe_obj(m, obj);
512 total_obj_size += obj->base.size;
513 total_gtt_size += i915_gem_obj_total_ggtt_size(obj);
517 mutex_unlock(&dev->struct_mutex);
519 seq_printf(m, "Total %d objects, %llu bytes, %llu GTT size\n",
520 count, total_obj_size, total_gtt_size);
525 static int i915_gem_pageflip_info(struct seq_file *m, void *data)
527 struct drm_i915_private *dev_priv = node_to_i915(m->private);
528 struct drm_device *dev = &dev_priv->drm;
529 struct intel_crtc *crtc;
532 ret = mutex_lock_interruptible(&dev->struct_mutex);
536 for_each_intel_crtc(dev, crtc) {
537 const char pipe = pipe_name(crtc->pipe);
538 const char plane = plane_name(crtc->plane);
539 struct intel_flip_work *work;
541 spin_lock_irq(&dev->event_lock);
542 work = crtc->flip_work;
544 seq_printf(m, "No flip due on pipe %c (plane %c)\n",
550 pending = atomic_read(&work->pending);
552 seq_printf(m, "Flip ioctl preparing on pipe %c (plane %c)\n",
555 seq_printf(m, "Flip pending (waiting for vsync) on pipe %c (plane %c)\n",
558 if (work->flip_queued_req) {
559 struct intel_engine_cs *engine = i915_gem_request_get_engine(work->flip_queued_req);
561 seq_printf(m, "Flip queued on %s at seqno %x, next seqno %x [current breadcrumb %x], completed? %d\n",
563 i915_gem_request_get_seqno(work->flip_queued_req),
564 dev_priv->next_seqno,
565 intel_engine_get_seqno(engine),
566 i915_gem_request_completed(work->flip_queued_req));
568 seq_printf(m, "Flip not associated with any ring\n");
569 seq_printf(m, "Flip queued on frame %d, (was ready on frame %d), now %d\n",
570 work->flip_queued_vblank,
571 work->flip_ready_vblank,
572 intel_crtc_get_vblank_counter(crtc));
573 seq_printf(m, "%d prepares\n", atomic_read(&work->pending));
575 if (INTEL_GEN(dev_priv) >= 4)
576 addr = I915_HI_DISPBASE(I915_READ(DSPSURF(crtc->plane)));
578 addr = I915_READ(DSPADDR(crtc->plane));
579 seq_printf(m, "Current scanout address 0x%08x\n", addr);
581 if (work->pending_flip_obj) {
582 seq_printf(m, "New framebuffer address 0x%08lx\n", (long)work->gtt_offset);
583 seq_printf(m, "MMIO update completed? %d\n", addr == work->gtt_offset);
586 spin_unlock_irq(&dev->event_lock);
589 mutex_unlock(&dev->struct_mutex);
594 static int i915_gem_batch_pool_info(struct seq_file *m, void *data)
596 struct drm_i915_private *dev_priv = node_to_i915(m->private);
597 struct drm_device *dev = &dev_priv->drm;
598 struct drm_i915_gem_object *obj;
599 struct intel_engine_cs *engine;
600 enum intel_engine_id id;
604 ret = mutex_lock_interruptible(&dev->struct_mutex);
608 for_each_engine(engine, dev_priv, id) {
609 for (j = 0; j < ARRAY_SIZE(engine->batch_pool.cache_list); j++) {
613 list_for_each_entry(obj,
614 &engine->batch_pool.cache_list[j],
617 seq_printf(m, "%s cache[%d]: %d objects\n",
618 engine->name, j, count);
620 list_for_each_entry(obj,
621 &engine->batch_pool.cache_list[j],
624 describe_obj(m, obj);
632 seq_printf(m, "total: %d\n", total);
634 mutex_unlock(&dev->struct_mutex);
639 static void print_request(struct seq_file *m,
640 struct drm_i915_gem_request *rq,
643 struct pid *pid = rq->ctx->pid;
644 struct task_struct *task;
647 task = pid ? pid_task(pid, PIDTYPE_PID) : NULL;
648 seq_printf(m, "%s%x [%x:%x] @ %d: %s [%d]\n", prefix,
649 rq->fence.seqno, rq->ctx->hw_id, rq->fence.seqno,
650 jiffies_to_msecs(jiffies - rq->emitted_jiffies),
651 task ? task->comm : "<unknown>",
652 task ? task->pid : -1);
656 static int i915_gem_request_info(struct seq_file *m, void *data)
658 struct drm_i915_private *dev_priv = node_to_i915(m->private);
659 struct drm_device *dev = &dev_priv->drm;
660 struct drm_i915_gem_request *req;
661 struct intel_engine_cs *engine;
662 enum intel_engine_id id;
665 ret = mutex_lock_interruptible(&dev->struct_mutex);
670 for_each_engine(engine, dev_priv, id) {
674 list_for_each_entry(req, &engine->request_list, link)
679 seq_printf(m, "%s requests: %d\n", engine->name, count);
680 list_for_each_entry(req, &engine->request_list, link)
681 print_request(m, req, " ");
685 mutex_unlock(&dev->struct_mutex);
688 seq_puts(m, "No requests\n");
693 static void i915_ring_seqno_info(struct seq_file *m,
694 struct intel_engine_cs *engine)
696 struct intel_breadcrumbs *b = &engine->breadcrumbs;
699 seq_printf(m, "Current sequence (%s): %x\n",
700 engine->name, intel_engine_get_seqno(engine));
703 for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) {
704 struct intel_wait *w = container_of(rb, typeof(*w), node);
706 seq_printf(m, "Waiting (%s): %s [%d] on %x\n",
707 engine->name, w->tsk->comm, w->tsk->pid, w->seqno);
709 spin_unlock(&b->lock);
712 static int i915_gem_seqno_info(struct seq_file *m, void *data)
714 struct drm_i915_private *dev_priv = node_to_i915(m->private);
715 struct intel_engine_cs *engine;
716 enum intel_engine_id id;
718 for_each_engine(engine, dev_priv, id)
719 i915_ring_seqno_info(m, engine);
725 static int i915_interrupt_info(struct seq_file *m, void *data)
727 struct drm_i915_private *dev_priv = node_to_i915(m->private);
728 struct intel_engine_cs *engine;
729 enum intel_engine_id id;
732 intel_runtime_pm_get(dev_priv);
734 if (IS_CHERRYVIEW(dev_priv)) {
735 seq_printf(m, "Master Interrupt Control:\t%08x\n",
736 I915_READ(GEN8_MASTER_IRQ));
738 seq_printf(m, "Display IER:\t%08x\n",
740 seq_printf(m, "Display IIR:\t%08x\n",
742 seq_printf(m, "Display IIR_RW:\t%08x\n",
743 I915_READ(VLV_IIR_RW));
744 seq_printf(m, "Display IMR:\t%08x\n",
746 for_each_pipe(dev_priv, pipe) {
747 enum intel_display_power_domain power_domain;
749 power_domain = POWER_DOMAIN_PIPE(pipe);
750 if (!intel_display_power_get_if_enabled(dev_priv,
752 seq_printf(m, "Pipe %c power disabled\n",
757 seq_printf(m, "Pipe %c stat:\t%08x\n",
759 I915_READ(PIPESTAT(pipe)));
761 intel_display_power_put(dev_priv, power_domain);
764 intel_display_power_get(dev_priv, POWER_DOMAIN_INIT);
765 seq_printf(m, "Port hotplug:\t%08x\n",
766 I915_READ(PORT_HOTPLUG_EN));
767 seq_printf(m, "DPFLIPSTAT:\t%08x\n",
768 I915_READ(VLV_DPFLIPSTAT));
769 seq_printf(m, "DPINVGTT:\t%08x\n",
770 I915_READ(DPINVGTT));
771 intel_display_power_put(dev_priv, POWER_DOMAIN_INIT);
773 for (i = 0; i < 4; i++) {
774 seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
775 i, I915_READ(GEN8_GT_IMR(i)));
776 seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
777 i, I915_READ(GEN8_GT_IIR(i)));
778 seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
779 i, I915_READ(GEN8_GT_IER(i)));
782 seq_printf(m, "PCU interrupt mask:\t%08x\n",
783 I915_READ(GEN8_PCU_IMR));
784 seq_printf(m, "PCU interrupt identity:\t%08x\n",
785 I915_READ(GEN8_PCU_IIR));
786 seq_printf(m, "PCU interrupt enable:\t%08x\n",
787 I915_READ(GEN8_PCU_IER));
788 } else if (INTEL_GEN(dev_priv) >= 8) {
789 seq_printf(m, "Master Interrupt Control:\t%08x\n",
790 I915_READ(GEN8_MASTER_IRQ));
792 for (i = 0; i < 4; i++) {
793 seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
794 i, I915_READ(GEN8_GT_IMR(i)));
795 seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
796 i, I915_READ(GEN8_GT_IIR(i)));
797 seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
798 i, I915_READ(GEN8_GT_IER(i)));
801 for_each_pipe(dev_priv, pipe) {
802 enum intel_display_power_domain power_domain;
804 power_domain = POWER_DOMAIN_PIPE(pipe);
805 if (!intel_display_power_get_if_enabled(dev_priv,
807 seq_printf(m, "Pipe %c power disabled\n",
811 seq_printf(m, "Pipe %c IMR:\t%08x\n",
813 I915_READ(GEN8_DE_PIPE_IMR(pipe)));
814 seq_printf(m, "Pipe %c IIR:\t%08x\n",
816 I915_READ(GEN8_DE_PIPE_IIR(pipe)));
817 seq_printf(m, "Pipe %c IER:\t%08x\n",
819 I915_READ(GEN8_DE_PIPE_IER(pipe)));
821 intel_display_power_put(dev_priv, power_domain);
824 seq_printf(m, "Display Engine port interrupt mask:\t%08x\n",
825 I915_READ(GEN8_DE_PORT_IMR));
826 seq_printf(m, "Display Engine port interrupt identity:\t%08x\n",
827 I915_READ(GEN8_DE_PORT_IIR));
828 seq_printf(m, "Display Engine port interrupt enable:\t%08x\n",
829 I915_READ(GEN8_DE_PORT_IER));
831 seq_printf(m, "Display Engine misc interrupt mask:\t%08x\n",
832 I915_READ(GEN8_DE_MISC_IMR));
833 seq_printf(m, "Display Engine misc interrupt identity:\t%08x\n",
834 I915_READ(GEN8_DE_MISC_IIR));
835 seq_printf(m, "Display Engine misc interrupt enable:\t%08x\n",
836 I915_READ(GEN8_DE_MISC_IER));
838 seq_printf(m, "PCU interrupt mask:\t%08x\n",
839 I915_READ(GEN8_PCU_IMR));
840 seq_printf(m, "PCU interrupt identity:\t%08x\n",
841 I915_READ(GEN8_PCU_IIR));
842 seq_printf(m, "PCU interrupt enable:\t%08x\n",
843 I915_READ(GEN8_PCU_IER));
844 } else if (IS_VALLEYVIEW(dev_priv)) {
845 seq_printf(m, "Display IER:\t%08x\n",
847 seq_printf(m, "Display IIR:\t%08x\n",
849 seq_printf(m, "Display IIR_RW:\t%08x\n",
850 I915_READ(VLV_IIR_RW));
851 seq_printf(m, "Display IMR:\t%08x\n",
853 for_each_pipe(dev_priv, pipe)
854 seq_printf(m, "Pipe %c stat:\t%08x\n",
856 I915_READ(PIPESTAT(pipe)));
858 seq_printf(m, "Master IER:\t%08x\n",
859 I915_READ(VLV_MASTER_IER));
861 seq_printf(m, "Render IER:\t%08x\n",
863 seq_printf(m, "Render IIR:\t%08x\n",
865 seq_printf(m, "Render IMR:\t%08x\n",
868 seq_printf(m, "PM IER:\t\t%08x\n",
869 I915_READ(GEN6_PMIER));
870 seq_printf(m, "PM IIR:\t\t%08x\n",
871 I915_READ(GEN6_PMIIR));
872 seq_printf(m, "PM IMR:\t\t%08x\n",
873 I915_READ(GEN6_PMIMR));
875 seq_printf(m, "Port hotplug:\t%08x\n",
876 I915_READ(PORT_HOTPLUG_EN));
877 seq_printf(m, "DPFLIPSTAT:\t%08x\n",
878 I915_READ(VLV_DPFLIPSTAT));
879 seq_printf(m, "DPINVGTT:\t%08x\n",
880 I915_READ(DPINVGTT));
882 } else if (!HAS_PCH_SPLIT(dev_priv)) {
883 seq_printf(m, "Interrupt enable: %08x\n",
885 seq_printf(m, "Interrupt identity: %08x\n",
887 seq_printf(m, "Interrupt mask: %08x\n",
889 for_each_pipe(dev_priv, pipe)
890 seq_printf(m, "Pipe %c stat: %08x\n",
892 I915_READ(PIPESTAT(pipe)));
894 seq_printf(m, "North Display Interrupt enable: %08x\n",
896 seq_printf(m, "North Display Interrupt identity: %08x\n",
898 seq_printf(m, "North Display Interrupt mask: %08x\n",
900 seq_printf(m, "South Display Interrupt enable: %08x\n",
902 seq_printf(m, "South Display Interrupt identity: %08x\n",
904 seq_printf(m, "South Display Interrupt mask: %08x\n",
906 seq_printf(m, "Graphics Interrupt enable: %08x\n",
908 seq_printf(m, "Graphics Interrupt identity: %08x\n",
910 seq_printf(m, "Graphics Interrupt mask: %08x\n",
913 for_each_engine(engine, dev_priv, id) {
914 if (INTEL_GEN(dev_priv) >= 6) {
916 "Graphics Interrupt mask (%s): %08x\n",
917 engine->name, I915_READ_IMR(engine));
919 i915_ring_seqno_info(m, engine);
921 intel_runtime_pm_put(dev_priv);
926 static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
928 struct drm_i915_private *dev_priv = node_to_i915(m->private);
929 struct drm_device *dev = &dev_priv->drm;
932 ret = mutex_lock_interruptible(&dev->struct_mutex);
936 seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
937 for (i = 0; i < dev_priv->num_fence_regs; i++) {
938 struct i915_vma *vma = dev_priv->fence_regs[i].vma;
940 seq_printf(m, "Fence %d, pin count = %d, object = ",
941 i, dev_priv->fence_regs[i].pin_count);
943 seq_puts(m, "unused");
945 describe_obj(m, vma->obj);
949 mutex_unlock(&dev->struct_mutex);
953 static int i915_hws_info(struct seq_file *m, void *data)
955 struct drm_info_node *node = m->private;
956 struct drm_i915_private *dev_priv = node_to_i915(node);
957 struct intel_engine_cs *engine;
961 engine = dev_priv->engine[(uintptr_t)node->info_ent->data];
962 hws = engine->status_page.page_addr;
966 for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
967 seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
969 hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
974 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
977 i915_error_state_write(struct file *filp,
978 const char __user *ubuf,
982 struct i915_error_state_file_priv *error_priv = filp->private_data;
984 DRM_DEBUG_DRIVER("Resetting error state\n");
985 i915_destroy_error_state(error_priv->dev);
990 static int i915_error_state_open(struct inode *inode, struct file *file)
992 struct drm_i915_private *dev_priv = inode->i_private;
993 struct i915_error_state_file_priv *error_priv;
995 error_priv = kzalloc(sizeof(*error_priv), GFP_KERNEL);
999 error_priv->dev = &dev_priv->drm;
1001 i915_error_state_get(&dev_priv->drm, error_priv);
1003 file->private_data = error_priv;
1008 static int i915_error_state_release(struct inode *inode, struct file *file)
1010 struct i915_error_state_file_priv *error_priv = file->private_data;
1012 i915_error_state_put(error_priv);
1018 static ssize_t i915_error_state_read(struct file *file, char __user *userbuf,
1019 size_t count, loff_t *pos)
1021 struct i915_error_state_file_priv *error_priv = file->private_data;
1022 struct drm_i915_error_state_buf error_str;
1024 ssize_t ret_count = 0;
1027 ret = i915_error_state_buf_init(&error_str,
1028 to_i915(error_priv->dev), count, *pos);
1032 ret = i915_error_state_to_str(&error_str, error_priv);
1036 ret_count = simple_read_from_buffer(userbuf, count, &tmp_pos,
1043 *pos = error_str.start + ret_count;
1045 i915_error_state_buf_release(&error_str);
1046 return ret ?: ret_count;
1049 static const struct file_operations i915_error_state_fops = {
1050 .owner = THIS_MODULE,
1051 .open = i915_error_state_open,
1052 .read = i915_error_state_read,
1053 .write = i915_error_state_write,
1054 .llseek = default_llseek,
1055 .release = i915_error_state_release,
1061 i915_next_seqno_get(void *data, u64 *val)
1063 struct drm_i915_private *dev_priv = data;
1066 ret = mutex_lock_interruptible(&dev_priv->drm.struct_mutex);
1070 *val = dev_priv->next_seqno;
1071 mutex_unlock(&dev_priv->drm.struct_mutex);
1077 i915_next_seqno_set(void *data, u64 val)
1079 struct drm_i915_private *dev_priv = data;
1080 struct drm_device *dev = &dev_priv->drm;
1083 ret = mutex_lock_interruptible(&dev->struct_mutex);
1087 ret = i915_gem_set_seqno(dev, val);
1088 mutex_unlock(&dev->struct_mutex);
1093 DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops,
1094 i915_next_seqno_get, i915_next_seqno_set,
1097 static int i915_frequency_info(struct seq_file *m, void *unused)
1099 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1100 struct drm_device *dev = &dev_priv->drm;
1103 intel_runtime_pm_get(dev_priv);
1105 if (IS_GEN5(dev_priv)) {
1106 u16 rgvswctl = I915_READ16(MEMSWCTL);
1107 u16 rgvstat = I915_READ16(MEMSTAT_ILK);
1109 seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
1110 seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
1111 seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
1113 seq_printf(m, "Current P-state: %d\n",
1114 (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
1115 } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
1118 mutex_lock(&dev_priv->rps.hw_lock);
1119 freq_sts = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
1120 seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
1121 seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
1123 seq_printf(m, "actual GPU freq: %d MHz\n",
1124 intel_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff));
1126 seq_printf(m, "current GPU freq: %d MHz\n",
1127 intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
1129 seq_printf(m, "max GPU freq: %d MHz\n",
1130 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
1132 seq_printf(m, "min GPU freq: %d MHz\n",
1133 intel_gpu_freq(dev_priv, dev_priv->rps.min_freq));
1135 seq_printf(m, "idle GPU freq: %d MHz\n",
1136 intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq));
1139 "efficient (RPe) frequency: %d MHz\n",
1140 intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
1141 mutex_unlock(&dev_priv->rps.hw_lock);
1142 } else if (INTEL_GEN(dev_priv) >= 6) {
1143 u32 rp_state_limits;
1146 u32 rpmodectl, rpinclimit, rpdeclimit;
1147 u32 rpstat, cagf, reqf;
1148 u32 rpupei, rpcurup, rpprevup;
1149 u32 rpdownei, rpcurdown, rpprevdown;
1150 u32 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask;
1153 rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
1154 if (IS_BROXTON(dev_priv)) {
1155 rp_state_cap = I915_READ(BXT_RP_STATE_CAP);
1156 gt_perf_status = I915_READ(BXT_GT_PERF_STATUS);
1158 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
1159 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
1162 /* RPSTAT1 is in the GT power well */
1163 ret = mutex_lock_interruptible(&dev->struct_mutex);
1167 intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
1169 reqf = I915_READ(GEN6_RPNSWREQ);
1170 if (IS_GEN9(dev_priv))
1173 reqf &= ~GEN6_TURBO_DISABLE;
1174 if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
1179 reqf = intel_gpu_freq(dev_priv, reqf);
1181 rpmodectl = I915_READ(GEN6_RP_CONTROL);
1182 rpinclimit = I915_READ(GEN6_RP_UP_THRESHOLD);
1183 rpdeclimit = I915_READ(GEN6_RP_DOWN_THRESHOLD);
1185 rpstat = I915_READ(GEN6_RPSTAT1);
1186 rpupei = I915_READ(GEN6_RP_CUR_UP_EI) & GEN6_CURICONT_MASK;
1187 rpcurup = I915_READ(GEN6_RP_CUR_UP) & GEN6_CURBSYTAVG_MASK;
1188 rpprevup = I915_READ(GEN6_RP_PREV_UP) & GEN6_CURBSYTAVG_MASK;
1189 rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI) & GEN6_CURIAVG_MASK;
1190 rpcurdown = I915_READ(GEN6_RP_CUR_DOWN) & GEN6_CURBSYTAVG_MASK;
1191 rpprevdown = I915_READ(GEN6_RP_PREV_DOWN) & GEN6_CURBSYTAVG_MASK;
1192 if (IS_GEN9(dev_priv))
1193 cagf = (rpstat & GEN9_CAGF_MASK) >> GEN9_CAGF_SHIFT;
1194 else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
1195 cagf = (rpstat & HSW_CAGF_MASK) >> HSW_CAGF_SHIFT;
1197 cagf = (rpstat & GEN6_CAGF_MASK) >> GEN6_CAGF_SHIFT;
1198 cagf = intel_gpu_freq(dev_priv, cagf);
1200 intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
1201 mutex_unlock(&dev->struct_mutex);
1203 if (IS_GEN6(dev_priv) || IS_GEN7(dev_priv)) {
1204 pm_ier = I915_READ(GEN6_PMIER);
1205 pm_imr = I915_READ(GEN6_PMIMR);
1206 pm_isr = I915_READ(GEN6_PMISR);
1207 pm_iir = I915_READ(GEN6_PMIIR);
1208 pm_mask = I915_READ(GEN6_PMINTRMSK);
1210 pm_ier = I915_READ(GEN8_GT_IER(2));
1211 pm_imr = I915_READ(GEN8_GT_IMR(2));
1212 pm_isr = I915_READ(GEN8_GT_ISR(2));
1213 pm_iir = I915_READ(GEN8_GT_IIR(2));
1214 pm_mask = I915_READ(GEN6_PMINTRMSK);
1216 seq_printf(m, "PM IER=0x%08x IMR=0x%08x ISR=0x%08x IIR=0x%08x, MASK=0x%08x\n",
1217 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask);
1218 seq_printf(m, "pm_intr_keep: 0x%08x\n", dev_priv->rps.pm_intr_keep);
1219 seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
1220 seq_printf(m, "Render p-state ratio: %d\n",
1221 (gt_perf_status & (IS_GEN9(dev_priv) ? 0x1ff00 : 0xff00)) >> 8);
1222 seq_printf(m, "Render p-state VID: %d\n",
1223 gt_perf_status & 0xff);
1224 seq_printf(m, "Render p-state limit: %d\n",
1225 rp_state_limits & 0xff);
1226 seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
1227 seq_printf(m, "RPMODECTL: 0x%08x\n", rpmodectl);
1228 seq_printf(m, "RPINCLIMIT: 0x%08x\n", rpinclimit);
1229 seq_printf(m, "RPDECLIMIT: 0x%08x\n", rpdeclimit);
1230 seq_printf(m, "RPNSWREQ: %dMHz\n", reqf);
1231 seq_printf(m, "CAGF: %dMHz\n", cagf);
1232 seq_printf(m, "RP CUR UP EI: %d (%dus)\n",
1233 rpupei, GT_PM_INTERVAL_TO_US(dev_priv, rpupei));
1234 seq_printf(m, "RP CUR UP: %d (%dus)\n",
1235 rpcurup, GT_PM_INTERVAL_TO_US(dev_priv, rpcurup));
1236 seq_printf(m, "RP PREV UP: %d (%dus)\n",
1237 rpprevup, GT_PM_INTERVAL_TO_US(dev_priv, rpprevup));
1238 seq_printf(m, "Up threshold: %d%%\n",
1239 dev_priv->rps.up_threshold);
1241 seq_printf(m, "RP CUR DOWN EI: %d (%dus)\n",
1242 rpdownei, GT_PM_INTERVAL_TO_US(dev_priv, rpdownei));
1243 seq_printf(m, "RP CUR DOWN: %d (%dus)\n",
1244 rpcurdown, GT_PM_INTERVAL_TO_US(dev_priv, rpcurdown));
1245 seq_printf(m, "RP PREV DOWN: %d (%dus)\n",
1246 rpprevdown, GT_PM_INTERVAL_TO_US(dev_priv, rpprevdown));
1247 seq_printf(m, "Down threshold: %d%%\n",
1248 dev_priv->rps.down_threshold);
1250 max_freq = (IS_BROXTON(dev_priv) ? rp_state_cap >> 0 :
1251 rp_state_cap >> 16) & 0xff;
1252 max_freq *= (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv) ?
1253 GEN9_FREQ_SCALER : 1);
1254 seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
1255 intel_gpu_freq(dev_priv, max_freq));
1257 max_freq = (rp_state_cap & 0xff00) >> 8;
1258 max_freq *= (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv) ?
1259 GEN9_FREQ_SCALER : 1);
1260 seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
1261 intel_gpu_freq(dev_priv, max_freq));
1263 max_freq = (IS_BROXTON(dev_priv) ? rp_state_cap >> 16 :
1264 rp_state_cap >> 0) & 0xff;
1265 max_freq *= (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv) ?
1266 GEN9_FREQ_SCALER : 1);
1267 seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
1268 intel_gpu_freq(dev_priv, max_freq));
1269 seq_printf(m, "Max overclocked frequency: %dMHz\n",
1270 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
1272 seq_printf(m, "Current freq: %d MHz\n",
1273 intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
1274 seq_printf(m, "Actual freq: %d MHz\n", cagf);
1275 seq_printf(m, "Idle freq: %d MHz\n",
1276 intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq));
1277 seq_printf(m, "Min freq: %d MHz\n",
1278 intel_gpu_freq(dev_priv, dev_priv->rps.min_freq));
1279 seq_printf(m, "Boost freq: %d MHz\n",
1280 intel_gpu_freq(dev_priv, dev_priv->rps.boost_freq));
1281 seq_printf(m, "Max freq: %d MHz\n",
1282 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
1284 "efficient (RPe) frequency: %d MHz\n",
1285 intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
1287 seq_puts(m, "no P-state info available\n");
1290 seq_printf(m, "Current CD clock frequency: %d kHz\n", dev_priv->cdclk_freq);
1291 seq_printf(m, "Max CD clock frequency: %d kHz\n", dev_priv->max_cdclk_freq);
1292 seq_printf(m, "Max pixel clock frequency: %d kHz\n", dev_priv->max_dotclk_freq);
1295 intel_runtime_pm_put(dev_priv);
1299 static void i915_instdone_info(struct drm_i915_private *dev_priv,
1301 struct intel_instdone *instdone)
1306 seq_printf(m, "\t\tINSTDONE: 0x%08x\n",
1307 instdone->instdone);
1309 if (INTEL_GEN(dev_priv) <= 3)
1312 seq_printf(m, "\t\tSC_INSTDONE: 0x%08x\n",
1313 instdone->slice_common);
1315 if (INTEL_GEN(dev_priv) <= 6)
1318 for_each_instdone_slice_subslice(dev_priv, slice, subslice)
1319 seq_printf(m, "\t\tSAMPLER_INSTDONE[%d][%d]: 0x%08x\n",
1320 slice, subslice, instdone->sampler[slice][subslice]);
1322 for_each_instdone_slice_subslice(dev_priv, slice, subslice)
1323 seq_printf(m, "\t\tROW_INSTDONE[%d][%d]: 0x%08x\n",
1324 slice, subslice, instdone->row[slice][subslice]);
1327 static int i915_hangcheck_info(struct seq_file *m, void *unused)
1329 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1330 struct intel_engine_cs *engine;
1331 u64 acthd[I915_NUM_ENGINES];
1332 u32 seqno[I915_NUM_ENGINES];
1333 struct intel_instdone instdone;
1334 enum intel_engine_id id;
1336 if (test_bit(I915_WEDGED, &dev_priv->gpu_error.flags))
1337 seq_printf(m, "Wedged\n");
1338 if (test_bit(I915_RESET_IN_PROGRESS, &dev_priv->gpu_error.flags))
1339 seq_printf(m, "Reset in progress\n");
1340 if (waitqueue_active(&dev_priv->gpu_error.wait_queue))
1341 seq_printf(m, "Waiter holding struct mutex\n");
1342 if (waitqueue_active(&dev_priv->gpu_error.reset_queue))
1343 seq_printf(m, "struct_mutex blocked for reset\n");
1345 if (!i915.enable_hangcheck) {
1346 seq_printf(m, "Hangcheck disabled\n");
1350 intel_runtime_pm_get(dev_priv);
1352 for_each_engine(engine, dev_priv, id) {
1353 acthd[id] = intel_engine_get_active_head(engine);
1354 seqno[id] = intel_engine_get_seqno(engine);
1357 intel_engine_get_instdone(dev_priv->engine[RCS], &instdone);
1359 intel_runtime_pm_put(dev_priv);
1361 if (delayed_work_pending(&dev_priv->gpu_error.hangcheck_work)) {
1362 seq_printf(m, "Hangcheck active, fires in %dms\n",
1363 jiffies_to_msecs(dev_priv->gpu_error.hangcheck_work.timer.expires -
1366 seq_printf(m, "Hangcheck inactive\n");
1368 for_each_engine(engine, dev_priv, id) {
1369 struct intel_breadcrumbs *b = &engine->breadcrumbs;
1372 seq_printf(m, "%s:\n", engine->name);
1373 seq_printf(m, "\tseqno = %x [current %x, last %x]\n",
1374 engine->hangcheck.seqno,
1376 engine->last_submitted_seqno);
1377 seq_printf(m, "\twaiters? %s, fake irq active? %s\n",
1378 yesno(intel_engine_has_waiter(engine)),
1379 yesno(test_bit(engine->id,
1380 &dev_priv->gpu_error.missed_irq_rings)));
1381 spin_lock(&b->lock);
1382 for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) {
1383 struct intel_wait *w = container_of(rb, typeof(*w), node);
1385 seq_printf(m, "\t%s [%d] waiting for %x\n",
1386 w->tsk->comm, w->tsk->pid, w->seqno);
1388 spin_unlock(&b->lock);
1390 seq_printf(m, "\tACTHD = 0x%08llx [current 0x%08llx]\n",
1391 (long long)engine->hangcheck.acthd,
1392 (long long)acthd[id]);
1393 seq_printf(m, "\tscore = %d\n", engine->hangcheck.score);
1394 seq_printf(m, "\taction = %d\n", engine->hangcheck.action);
1396 if (engine->id == RCS) {
1397 seq_puts(m, "\tinstdone read =\n");
1399 i915_instdone_info(dev_priv, m, &instdone);
1401 seq_puts(m, "\tinstdone accu =\n");
1403 i915_instdone_info(dev_priv, m,
1404 &engine->hangcheck.instdone);
1411 static int ironlake_drpc_info(struct seq_file *m)
1413 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1414 u32 rgvmodectl, rstdbyctl;
1417 intel_runtime_pm_get(dev_priv);
1419 rgvmodectl = I915_READ(MEMMODECTL);
1420 rstdbyctl = I915_READ(RSTDBYCTL);
1421 crstandvid = I915_READ16(CRSTANDVID);
1423 intel_runtime_pm_put(dev_priv);
1425 seq_printf(m, "HD boost: %s\n", yesno(rgvmodectl & MEMMODE_BOOST_EN));
1426 seq_printf(m, "Boost freq: %d\n",
1427 (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
1428 MEMMODE_BOOST_FREQ_SHIFT);
1429 seq_printf(m, "HW control enabled: %s\n",
1430 yesno(rgvmodectl & MEMMODE_HWIDLE_EN));
1431 seq_printf(m, "SW control enabled: %s\n",
1432 yesno(rgvmodectl & MEMMODE_SWMODE_EN));
1433 seq_printf(m, "Gated voltage change: %s\n",
1434 yesno(rgvmodectl & MEMMODE_RCLK_GATE));
1435 seq_printf(m, "Starting frequency: P%d\n",
1436 (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
1437 seq_printf(m, "Max P-state: P%d\n",
1438 (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
1439 seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
1440 seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
1441 seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
1442 seq_printf(m, "Render standby enabled: %s\n",
1443 yesno(!(rstdbyctl & RCX_SW_EXIT)));
1444 seq_puts(m, "Current RS state: ");
1445 switch (rstdbyctl & RSX_STATUS_MASK) {
1447 seq_puts(m, "on\n");
1449 case RSX_STATUS_RC1:
1450 seq_puts(m, "RC1\n");
1452 case RSX_STATUS_RC1E:
1453 seq_puts(m, "RC1E\n");
1455 case RSX_STATUS_RS1:
1456 seq_puts(m, "RS1\n");
1458 case RSX_STATUS_RS2:
1459 seq_puts(m, "RS2 (RC6)\n");
1461 case RSX_STATUS_RS3:
1462 seq_puts(m, "RC3 (RC6+)\n");
1465 seq_puts(m, "unknown\n");
1472 static int i915_forcewake_domains(struct seq_file *m, void *data)
1474 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1475 struct intel_uncore_forcewake_domain *fw_domain;
1477 spin_lock_irq(&dev_priv->uncore.lock);
1478 for_each_fw_domain(fw_domain, dev_priv) {
1479 seq_printf(m, "%s.wake_count = %u\n",
1480 intel_uncore_forcewake_domain_to_str(fw_domain->id),
1481 fw_domain->wake_count);
1483 spin_unlock_irq(&dev_priv->uncore.lock);
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 intel_runtime_pm_get(dev_priv);
1495 pw_status = I915_READ(VLV_GTLC_PW_STATUS);
1496 rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
1497 rcctl1 = I915_READ(GEN6_RC_CONTROL);
1499 intel_runtime_pm_put(dev_priv);
1501 seq_printf(m, "Video Turbo Mode: %s\n",
1502 yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
1503 seq_printf(m, "Turbo enabled: %s\n",
1504 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1505 seq_printf(m, "HW control enabled: %s\n",
1506 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1507 seq_printf(m, "SW control enabled: %s\n",
1508 yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
1509 GEN6_RP_MEDIA_SW_MODE));
1510 seq_printf(m, "RC6 Enabled: %s\n",
1511 yesno(rcctl1 & (GEN7_RC_CTL_TO_MODE |
1512 GEN6_RC_CTL_EI_MODE(1))));
1513 seq_printf(m, "Render Power Well: %s\n",
1514 (pw_status & VLV_GTLC_PW_RENDER_STATUS_MASK) ? "Up" : "Down");
1515 seq_printf(m, "Media Power Well: %s\n",
1516 (pw_status & VLV_GTLC_PW_MEDIA_STATUS_MASK) ? "Up" : "Down");
1518 seq_printf(m, "Render RC6 residency since boot: %u\n",
1519 I915_READ(VLV_GT_RENDER_RC6));
1520 seq_printf(m, "Media RC6 residency since boot: %u\n",
1521 I915_READ(VLV_GT_MEDIA_RC6));
1523 return i915_forcewake_domains(m, NULL);
1526 static int gen6_drpc_info(struct seq_file *m)
1528 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1529 struct drm_device *dev = &dev_priv->drm;
1530 u32 rpmodectl1, gt_core_status, rcctl1, rc6vids = 0;
1531 u32 gen9_powergate_enable = 0, gen9_powergate_status = 0;
1532 unsigned forcewake_count;
1535 ret = mutex_lock_interruptible(&dev->struct_mutex);
1538 intel_runtime_pm_get(dev_priv);
1540 spin_lock_irq(&dev_priv->uncore.lock);
1541 forcewake_count = dev_priv->uncore.fw_domain[FW_DOMAIN_ID_RENDER].wake_count;
1542 spin_unlock_irq(&dev_priv->uncore.lock);
1544 if (forcewake_count) {
1545 seq_puts(m, "RC information inaccurate because somebody "
1546 "holds a forcewake reference \n");
1548 /* NB: we cannot use forcewake, else we read the wrong values */
1549 while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
1551 seq_printf(m, "RC information accurate: %s\n", yesno(count < 51));
1554 gt_core_status = I915_READ_FW(GEN6_GT_CORE_STATUS);
1555 trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true);
1557 rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
1558 rcctl1 = I915_READ(GEN6_RC_CONTROL);
1559 if (INTEL_GEN(dev_priv) >= 9) {
1560 gen9_powergate_enable = I915_READ(GEN9_PG_ENABLE);
1561 gen9_powergate_status = I915_READ(GEN9_PWRGT_DOMAIN_STATUS);
1563 mutex_unlock(&dev->struct_mutex);
1564 mutex_lock(&dev_priv->rps.hw_lock);
1565 sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, &rc6vids);
1566 mutex_unlock(&dev_priv->rps.hw_lock);
1568 intel_runtime_pm_put(dev_priv);
1570 seq_printf(m, "Video Turbo Mode: %s\n",
1571 yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
1572 seq_printf(m, "HW control enabled: %s\n",
1573 yesno(rpmodectl1 & GEN6_RP_ENABLE));
1574 seq_printf(m, "SW control enabled: %s\n",
1575 yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
1576 GEN6_RP_MEDIA_SW_MODE));
1577 seq_printf(m, "RC1e Enabled: %s\n",
1578 yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
1579 seq_printf(m, "RC6 Enabled: %s\n",
1580 yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
1581 if (INTEL_GEN(dev_priv) >= 9) {
1582 seq_printf(m, "Render Well Gating Enabled: %s\n",
1583 yesno(gen9_powergate_enable & GEN9_RENDER_PG_ENABLE));
1584 seq_printf(m, "Media Well Gating Enabled: %s\n",
1585 yesno(gen9_powergate_enable & GEN9_MEDIA_PG_ENABLE));
1587 seq_printf(m, "Deep RC6 Enabled: %s\n",
1588 yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
1589 seq_printf(m, "Deepest RC6 Enabled: %s\n",
1590 yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
1591 seq_puts(m, "Current RC state: ");
1592 switch (gt_core_status & GEN6_RCn_MASK) {
1594 if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
1595 seq_puts(m, "Core Power Down\n");
1597 seq_puts(m, "on\n");
1600 seq_puts(m, "RC3\n");
1603 seq_puts(m, "RC6\n");
1606 seq_puts(m, "RC7\n");
1609 seq_puts(m, "Unknown\n");
1613 seq_printf(m, "Core Power Down: %s\n",
1614 yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
1615 if (INTEL_GEN(dev_priv) >= 9) {
1616 seq_printf(m, "Render Power Well: %s\n",
1617 (gen9_powergate_status &
1618 GEN9_PWRGT_RENDER_STATUS_MASK) ? "Up" : "Down");
1619 seq_printf(m, "Media Power Well: %s\n",
1620 (gen9_powergate_status &
1621 GEN9_PWRGT_MEDIA_STATUS_MASK) ? "Up" : "Down");
1624 /* Not exactly sure what this is */
1625 seq_printf(m, "RC6 \"Locked to RPn\" residency since boot: %u\n",
1626 I915_READ(GEN6_GT_GFX_RC6_LOCKED));
1627 seq_printf(m, "RC6 residency since boot: %u\n",
1628 I915_READ(GEN6_GT_GFX_RC6));
1629 seq_printf(m, "RC6+ residency since boot: %u\n",
1630 I915_READ(GEN6_GT_GFX_RC6p));
1631 seq_printf(m, "RC6++ residency since boot: %u\n",
1632 I915_READ(GEN6_GT_GFX_RC6pp));
1634 seq_printf(m, "RC6 voltage: %dmV\n",
1635 GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
1636 seq_printf(m, "RC6+ voltage: %dmV\n",
1637 GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
1638 seq_printf(m, "RC6++ voltage: %dmV\n",
1639 GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
1640 return i915_forcewake_domains(m, NULL);
1643 static int i915_drpc_info(struct seq_file *m, void *unused)
1645 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1647 if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
1648 return vlv_drpc_info(m);
1649 else if (INTEL_GEN(dev_priv) >= 6)
1650 return gen6_drpc_info(m);
1652 return ironlake_drpc_info(m);
1655 static int i915_frontbuffer_tracking(struct seq_file *m, void *unused)
1657 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1659 seq_printf(m, "FB tracking busy bits: 0x%08x\n",
1660 dev_priv->fb_tracking.busy_bits);
1662 seq_printf(m, "FB tracking flip bits: 0x%08x\n",
1663 dev_priv->fb_tracking.flip_bits);
1668 static int i915_fbc_status(struct seq_file *m, void *unused)
1670 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1672 if (!HAS_FBC(dev_priv)) {
1673 seq_puts(m, "FBC unsupported on this chipset\n");
1677 intel_runtime_pm_get(dev_priv);
1678 mutex_lock(&dev_priv->fbc.lock);
1680 if (intel_fbc_is_active(dev_priv))
1681 seq_puts(m, "FBC enabled\n");
1683 seq_printf(m, "FBC disabled: %s\n",
1684 dev_priv->fbc.no_fbc_reason);
1686 if (intel_fbc_is_active(dev_priv) && INTEL_GEN(dev_priv) >= 7) {
1687 uint32_t mask = INTEL_GEN(dev_priv) >= 8 ?
1688 BDW_FBC_COMPRESSION_MASK :
1689 IVB_FBC_COMPRESSION_MASK;
1690 seq_printf(m, "Compressing: %s\n",
1691 yesno(I915_READ(FBC_STATUS2) & mask));
1694 mutex_unlock(&dev_priv->fbc.lock);
1695 intel_runtime_pm_put(dev_priv);
1700 static int i915_fbc_fc_get(void *data, u64 *val)
1702 struct drm_i915_private *dev_priv = data;
1704 if (INTEL_GEN(dev_priv) < 7 || !HAS_FBC(dev_priv))
1707 *val = dev_priv->fbc.false_color;
1712 static int i915_fbc_fc_set(void *data, u64 val)
1714 struct drm_i915_private *dev_priv = data;
1717 if (INTEL_GEN(dev_priv) < 7 || !HAS_FBC(dev_priv))
1720 mutex_lock(&dev_priv->fbc.lock);
1722 reg = I915_READ(ILK_DPFC_CONTROL);
1723 dev_priv->fbc.false_color = val;
1725 I915_WRITE(ILK_DPFC_CONTROL, val ?
1726 (reg | FBC_CTL_FALSE_COLOR) :
1727 (reg & ~FBC_CTL_FALSE_COLOR));
1729 mutex_unlock(&dev_priv->fbc.lock);
1733 DEFINE_SIMPLE_ATTRIBUTE(i915_fbc_fc_fops,
1734 i915_fbc_fc_get, i915_fbc_fc_set,
1737 static int i915_ips_status(struct seq_file *m, void *unused)
1739 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1741 if (!HAS_IPS(dev_priv)) {
1742 seq_puts(m, "not supported\n");
1746 intel_runtime_pm_get(dev_priv);
1748 seq_printf(m, "Enabled by kernel parameter: %s\n",
1749 yesno(i915.enable_ips));
1751 if (INTEL_GEN(dev_priv) >= 8) {
1752 seq_puts(m, "Currently: unknown\n");
1754 if (I915_READ(IPS_CTL) & IPS_ENABLE)
1755 seq_puts(m, "Currently: enabled\n");
1757 seq_puts(m, "Currently: disabled\n");
1760 intel_runtime_pm_put(dev_priv);
1765 static int i915_sr_status(struct seq_file *m, void *unused)
1767 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1768 bool sr_enabled = false;
1770 intel_runtime_pm_get(dev_priv);
1771 intel_display_power_get(dev_priv, POWER_DOMAIN_INIT);
1773 if (HAS_PCH_SPLIT(dev_priv))
1774 sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
1775 else if (IS_CRESTLINE(dev_priv) || IS_G4X(dev_priv) ||
1776 IS_I945G(dev_priv) || IS_I945GM(dev_priv))
1777 sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
1778 else if (IS_I915GM(dev_priv))
1779 sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
1780 else if (IS_PINEVIEW(dev_priv))
1781 sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
1782 else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
1783 sr_enabled = I915_READ(FW_BLC_SELF_VLV) & FW_CSPWRDWNEN;
1785 intel_display_power_put(dev_priv, POWER_DOMAIN_INIT);
1786 intel_runtime_pm_put(dev_priv);
1788 seq_printf(m, "self-refresh: %s\n",
1789 sr_enabled ? "enabled" : "disabled");
1794 static int i915_emon_status(struct seq_file *m, void *unused)
1796 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1797 struct drm_device *dev = &dev_priv->drm;
1798 unsigned long temp, chipset, gfx;
1801 if (!IS_GEN5(dev_priv))
1804 ret = mutex_lock_interruptible(&dev->struct_mutex);
1808 temp = i915_mch_val(dev_priv);
1809 chipset = i915_chipset_val(dev_priv);
1810 gfx = i915_gfx_val(dev_priv);
1811 mutex_unlock(&dev->struct_mutex);
1813 seq_printf(m, "GMCH temp: %ld\n", temp);
1814 seq_printf(m, "Chipset power: %ld\n", chipset);
1815 seq_printf(m, "GFX power: %ld\n", gfx);
1816 seq_printf(m, "Total power: %ld\n", chipset + gfx);
1821 static int i915_ring_freq_table(struct seq_file *m, void *unused)
1823 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1825 int gpu_freq, ia_freq;
1826 unsigned int max_gpu_freq, min_gpu_freq;
1828 if (!HAS_LLC(dev_priv)) {
1829 seq_puts(m, "unsupported on this chipset\n");
1833 intel_runtime_pm_get(dev_priv);
1835 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
1839 if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
1840 /* Convert GT frequency to 50 HZ units */
1842 dev_priv->rps.min_freq_softlimit / GEN9_FREQ_SCALER;
1844 dev_priv->rps.max_freq_softlimit / GEN9_FREQ_SCALER;
1846 min_gpu_freq = dev_priv->rps.min_freq_softlimit;
1847 max_gpu_freq = dev_priv->rps.max_freq_softlimit;
1850 seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
1852 for (gpu_freq = min_gpu_freq; gpu_freq <= max_gpu_freq; gpu_freq++) {
1854 sandybridge_pcode_read(dev_priv,
1855 GEN6_PCODE_READ_MIN_FREQ_TABLE,
1857 seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
1858 intel_gpu_freq(dev_priv, (gpu_freq *
1859 (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv) ?
1860 GEN9_FREQ_SCALER : 1))),
1861 ((ia_freq >> 0) & 0xff) * 100,
1862 ((ia_freq >> 8) & 0xff) * 100);
1865 mutex_unlock(&dev_priv->rps.hw_lock);
1868 intel_runtime_pm_put(dev_priv);
1872 static int i915_opregion(struct seq_file *m, void *unused)
1874 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1875 struct drm_device *dev = &dev_priv->drm;
1876 struct intel_opregion *opregion = &dev_priv->opregion;
1879 ret = mutex_lock_interruptible(&dev->struct_mutex);
1883 if (opregion->header)
1884 seq_write(m, opregion->header, OPREGION_SIZE);
1886 mutex_unlock(&dev->struct_mutex);
1892 static int i915_vbt(struct seq_file *m, void *unused)
1894 struct intel_opregion *opregion = &node_to_i915(m->private)->opregion;
1897 seq_write(m, opregion->vbt, opregion->vbt_size);
1902 static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
1904 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1905 struct drm_device *dev = &dev_priv->drm;
1906 struct intel_framebuffer *fbdev_fb = NULL;
1907 struct drm_framebuffer *drm_fb;
1910 ret = mutex_lock_interruptible(&dev->struct_mutex);
1914 #ifdef CONFIG_DRM_FBDEV_EMULATION
1915 if (dev_priv->fbdev) {
1916 fbdev_fb = to_intel_framebuffer(dev_priv->fbdev->helper.fb);
1918 seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ",
1919 fbdev_fb->base.width,
1920 fbdev_fb->base.height,
1921 fbdev_fb->base.depth,
1922 fbdev_fb->base.bits_per_pixel,
1923 fbdev_fb->base.modifier[0],
1924 drm_framebuffer_read_refcount(&fbdev_fb->base));
1925 describe_obj(m, fbdev_fb->obj);
1930 mutex_lock(&dev->mode_config.fb_lock);
1931 drm_for_each_fb(drm_fb, dev) {
1932 struct intel_framebuffer *fb = to_intel_framebuffer(drm_fb);
1936 seq_printf(m, "user size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ",
1940 fb->base.bits_per_pixel,
1941 fb->base.modifier[0],
1942 drm_framebuffer_read_refcount(&fb->base));
1943 describe_obj(m, fb->obj);
1946 mutex_unlock(&dev->mode_config.fb_lock);
1947 mutex_unlock(&dev->struct_mutex);
1952 static void describe_ctx_ring(struct seq_file *m, struct intel_ring *ring)
1954 seq_printf(m, " (ringbuffer, space: %d, head: %u, tail: %u, last head: %d)",
1955 ring->space, ring->head, ring->tail,
1956 ring->last_retired_head);
1959 static int i915_context_status(struct seq_file *m, void *unused)
1961 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1962 struct drm_device *dev = &dev_priv->drm;
1963 struct intel_engine_cs *engine;
1964 struct i915_gem_context *ctx;
1965 enum intel_engine_id id;
1968 ret = mutex_lock_interruptible(&dev->struct_mutex);
1972 list_for_each_entry(ctx, &dev_priv->context_list, link) {
1973 seq_printf(m, "HW context %u ", ctx->hw_id);
1975 struct task_struct *task;
1977 task = get_pid_task(ctx->pid, PIDTYPE_PID);
1979 seq_printf(m, "(%s [%d]) ",
1980 task->comm, task->pid);
1981 put_task_struct(task);
1983 } else if (IS_ERR(ctx->file_priv)) {
1984 seq_puts(m, "(deleted) ");
1986 seq_puts(m, "(kernel) ");
1989 seq_putc(m, ctx->remap_slice ? 'R' : 'r');
1992 for_each_engine(engine, dev_priv, id) {
1993 struct intel_context *ce = &ctx->engine[engine->id];
1995 seq_printf(m, "%s: ", engine->name);
1996 seq_putc(m, ce->initialised ? 'I' : 'i');
1998 describe_obj(m, ce->state->obj);
2000 describe_ctx_ring(m, ce->ring);
2007 mutex_unlock(&dev->struct_mutex);
2012 static void i915_dump_lrc_obj(struct seq_file *m,
2013 struct i915_gem_context *ctx,
2014 struct intel_engine_cs *engine)
2016 struct i915_vma *vma = ctx->engine[engine->id].state;
2020 seq_printf(m, "CONTEXT: %s %u\n", engine->name, ctx->hw_id);
2023 seq_puts(m, "\tFake context\n");
2027 if (vma->flags & I915_VMA_GLOBAL_BIND)
2028 seq_printf(m, "\tBound in GGTT at 0x%08x\n",
2029 i915_ggtt_offset(vma));
2031 if (i915_gem_object_get_pages(vma->obj)) {
2032 seq_puts(m, "\tFailed to get pages for context object\n\n");
2036 page = i915_gem_object_get_page(vma->obj, LRC_STATE_PN);
2038 u32 *reg_state = kmap_atomic(page);
2040 for (j = 0; j < 0x600 / sizeof(u32) / 4; j += 4) {
2042 "\t[0x%04x] 0x%08x 0x%08x 0x%08x 0x%08x\n",
2044 reg_state[j], reg_state[j + 1],
2045 reg_state[j + 2], reg_state[j + 3]);
2047 kunmap_atomic(reg_state);
2053 static int i915_dump_lrc(struct seq_file *m, void *unused)
2055 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2056 struct drm_device *dev = &dev_priv->drm;
2057 struct intel_engine_cs *engine;
2058 struct i915_gem_context *ctx;
2059 enum intel_engine_id id;
2062 if (!i915.enable_execlists) {
2063 seq_printf(m, "Logical Ring Contexts are disabled\n");
2067 ret = mutex_lock_interruptible(&dev->struct_mutex);
2071 list_for_each_entry(ctx, &dev_priv->context_list, link)
2072 for_each_engine(engine, dev_priv, id)
2073 i915_dump_lrc_obj(m, ctx, engine);
2075 mutex_unlock(&dev->struct_mutex);
2080 static const char *swizzle_string(unsigned swizzle)
2083 case I915_BIT_6_SWIZZLE_NONE:
2085 case I915_BIT_6_SWIZZLE_9:
2087 case I915_BIT_6_SWIZZLE_9_10:
2088 return "bit9/bit10";
2089 case I915_BIT_6_SWIZZLE_9_11:
2090 return "bit9/bit11";
2091 case I915_BIT_6_SWIZZLE_9_10_11:
2092 return "bit9/bit10/bit11";
2093 case I915_BIT_6_SWIZZLE_9_17:
2094 return "bit9/bit17";
2095 case I915_BIT_6_SWIZZLE_9_10_17:
2096 return "bit9/bit10/bit17";
2097 case I915_BIT_6_SWIZZLE_UNKNOWN:
2104 static int i915_swizzle_info(struct seq_file *m, void *data)
2106 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2108 intel_runtime_pm_get(dev_priv);
2110 seq_printf(m, "bit6 swizzle for X-tiling = %s\n",
2111 swizzle_string(dev_priv->mm.bit_6_swizzle_x));
2112 seq_printf(m, "bit6 swizzle for Y-tiling = %s\n",
2113 swizzle_string(dev_priv->mm.bit_6_swizzle_y));
2115 if (IS_GEN3(dev_priv) || IS_GEN4(dev_priv)) {
2116 seq_printf(m, "DDC = 0x%08x\n",
2118 seq_printf(m, "DDC2 = 0x%08x\n",
2120 seq_printf(m, "C0DRB3 = 0x%04x\n",
2121 I915_READ16(C0DRB3));
2122 seq_printf(m, "C1DRB3 = 0x%04x\n",
2123 I915_READ16(C1DRB3));
2124 } else if (INTEL_GEN(dev_priv) >= 6) {
2125 seq_printf(m, "MAD_DIMM_C0 = 0x%08x\n",
2126 I915_READ(MAD_DIMM_C0));
2127 seq_printf(m, "MAD_DIMM_C1 = 0x%08x\n",
2128 I915_READ(MAD_DIMM_C1));
2129 seq_printf(m, "MAD_DIMM_C2 = 0x%08x\n",
2130 I915_READ(MAD_DIMM_C2));
2131 seq_printf(m, "TILECTL = 0x%08x\n",
2132 I915_READ(TILECTL));
2133 if (INTEL_GEN(dev_priv) >= 8)
2134 seq_printf(m, "GAMTARBMODE = 0x%08x\n",
2135 I915_READ(GAMTARBMODE));
2137 seq_printf(m, "ARB_MODE = 0x%08x\n",
2138 I915_READ(ARB_MODE));
2139 seq_printf(m, "DISP_ARB_CTL = 0x%08x\n",
2140 I915_READ(DISP_ARB_CTL));
2143 if (dev_priv->quirks & QUIRK_PIN_SWIZZLED_PAGES)
2144 seq_puts(m, "L-shaped memory detected\n");
2146 intel_runtime_pm_put(dev_priv);
2151 static int per_file_ctx(int id, void *ptr, void *data)
2153 struct i915_gem_context *ctx = ptr;
2154 struct seq_file *m = data;
2155 struct i915_hw_ppgtt *ppgtt = ctx->ppgtt;
2158 seq_printf(m, " no ppgtt for context %d\n",
2163 if (i915_gem_context_is_default(ctx))
2164 seq_puts(m, " default context:\n");
2166 seq_printf(m, " context %d:\n", ctx->user_handle);
2167 ppgtt->debug_dump(ppgtt, m);
2172 static void gen8_ppgtt_info(struct seq_file *m,
2173 struct drm_i915_private *dev_priv)
2175 struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
2176 struct intel_engine_cs *engine;
2177 enum intel_engine_id id;
2183 for_each_engine(engine, dev_priv, id) {
2184 seq_printf(m, "%s\n", engine->name);
2185 for (i = 0; i < 4; i++) {
2186 u64 pdp = I915_READ(GEN8_RING_PDP_UDW(engine, i));
2188 pdp |= I915_READ(GEN8_RING_PDP_LDW(engine, i));
2189 seq_printf(m, "\tPDP%d 0x%016llx\n", i, pdp);
2194 static void gen6_ppgtt_info(struct seq_file *m,
2195 struct drm_i915_private *dev_priv)
2197 struct intel_engine_cs *engine;
2198 enum intel_engine_id id;
2200 if (IS_GEN6(dev_priv))
2201 seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(GFX_MODE));
2203 for_each_engine(engine, dev_priv, id) {
2204 seq_printf(m, "%s\n", engine->name);
2205 if (IS_GEN7(dev_priv))
2206 seq_printf(m, "GFX_MODE: 0x%08x\n",
2207 I915_READ(RING_MODE_GEN7(engine)));
2208 seq_printf(m, "PP_DIR_BASE: 0x%08x\n",
2209 I915_READ(RING_PP_DIR_BASE(engine)));
2210 seq_printf(m, "PP_DIR_BASE_READ: 0x%08x\n",
2211 I915_READ(RING_PP_DIR_BASE_READ(engine)));
2212 seq_printf(m, "PP_DIR_DCLV: 0x%08x\n",
2213 I915_READ(RING_PP_DIR_DCLV(engine)));
2215 if (dev_priv->mm.aliasing_ppgtt) {
2216 struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
2218 seq_puts(m, "aliasing PPGTT:\n");
2219 seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd.base.ggtt_offset);
2221 ppgtt->debug_dump(ppgtt, m);
2224 seq_printf(m, "ECOCHK: 0x%08x\n", I915_READ(GAM_ECOCHK));
2227 static int i915_ppgtt_info(struct seq_file *m, void *data)
2229 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2230 struct drm_device *dev = &dev_priv->drm;
2231 struct drm_file *file;
2234 mutex_lock(&dev->filelist_mutex);
2235 ret = mutex_lock_interruptible(&dev->struct_mutex);
2239 intel_runtime_pm_get(dev_priv);
2241 if (INTEL_GEN(dev_priv) >= 8)
2242 gen8_ppgtt_info(m, dev_priv);
2243 else if (INTEL_GEN(dev_priv) >= 6)
2244 gen6_ppgtt_info(m, dev_priv);
2246 list_for_each_entry_reverse(file, &dev->filelist, lhead) {
2247 struct drm_i915_file_private *file_priv = file->driver_priv;
2248 struct task_struct *task;
2250 task = get_pid_task(file->pid, PIDTYPE_PID);
2255 seq_printf(m, "\nproc: %s\n", task->comm);
2256 put_task_struct(task);
2257 idr_for_each(&file_priv->context_idr, per_file_ctx,
2258 (void *)(unsigned long)m);
2262 intel_runtime_pm_put(dev_priv);
2263 mutex_unlock(&dev->struct_mutex);
2265 mutex_unlock(&dev->filelist_mutex);
2269 static int count_irq_waiters(struct drm_i915_private *i915)
2271 struct intel_engine_cs *engine;
2272 enum intel_engine_id id;
2275 for_each_engine(engine, i915, id)
2276 count += intel_engine_has_waiter(engine);
2281 static const char *rps_power_to_str(unsigned int power)
2283 static const char * const strings[] = {
2284 [LOW_POWER] = "low power",
2285 [BETWEEN] = "mixed",
2286 [HIGH_POWER] = "high power",
2289 if (power >= ARRAY_SIZE(strings) || !strings[power])
2292 return strings[power];
2295 static int i915_rps_boost_info(struct seq_file *m, void *data)
2297 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2298 struct drm_device *dev = &dev_priv->drm;
2299 struct drm_file *file;
2301 seq_printf(m, "RPS enabled? %d\n", dev_priv->rps.enabled);
2302 seq_printf(m, "GPU busy? %s [%x]\n",
2303 yesno(dev_priv->gt.awake), dev_priv->gt.active_engines);
2304 seq_printf(m, "CPU waiting? %d\n", count_irq_waiters(dev_priv));
2305 seq_printf(m, "Frequency requested %d\n",
2306 intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
2307 seq_printf(m, " min hard:%d, soft:%d; max soft:%d, hard:%d\n",
2308 intel_gpu_freq(dev_priv, dev_priv->rps.min_freq),
2309 intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit),
2310 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit),
2311 intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
2312 seq_printf(m, " idle:%d, efficient:%d, boost:%d\n",
2313 intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq),
2314 intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq),
2315 intel_gpu_freq(dev_priv, dev_priv->rps.boost_freq));
2317 mutex_lock(&dev->filelist_mutex);
2318 spin_lock(&dev_priv->rps.client_lock);
2319 list_for_each_entry_reverse(file, &dev->filelist, lhead) {
2320 struct drm_i915_file_private *file_priv = file->driver_priv;
2321 struct task_struct *task;
2324 task = pid_task(file->pid, PIDTYPE_PID);
2325 seq_printf(m, "%s [%d]: %d boosts%s\n",
2326 task ? task->comm : "<unknown>",
2327 task ? task->pid : -1,
2328 file_priv->rps.boosts,
2329 list_empty(&file_priv->rps.link) ? "" : ", active");
2332 seq_printf(m, "Kernel (anonymous) boosts: %d\n", dev_priv->rps.boosts);
2333 spin_unlock(&dev_priv->rps.client_lock);
2334 mutex_unlock(&dev->filelist_mutex);
2336 if (INTEL_GEN(dev_priv) >= 6 &&
2337 dev_priv->rps.enabled &&
2338 dev_priv->gt.active_engines) {
2340 u32 rpdown, rpdownei;
2342 intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
2343 rpup = I915_READ_FW(GEN6_RP_CUR_UP) & GEN6_RP_EI_MASK;
2344 rpupei = I915_READ_FW(GEN6_RP_CUR_UP_EI) & GEN6_RP_EI_MASK;
2345 rpdown = I915_READ_FW(GEN6_RP_CUR_DOWN) & GEN6_RP_EI_MASK;
2346 rpdownei = I915_READ_FW(GEN6_RP_CUR_DOWN_EI) & GEN6_RP_EI_MASK;
2347 intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
2349 seq_printf(m, "\nRPS Autotuning (current \"%s\" window):\n",
2350 rps_power_to_str(dev_priv->rps.power));
2351 seq_printf(m, " Avg. up: %d%% [above threshold? %d%%]\n",
2352 100 * rpup / rpupei,
2353 dev_priv->rps.up_threshold);
2354 seq_printf(m, " Avg. down: %d%% [below threshold? %d%%]\n",
2355 100 * rpdown / rpdownei,
2356 dev_priv->rps.down_threshold);
2358 seq_puts(m, "\nRPS Autotuning inactive\n");
2364 static int i915_llc(struct seq_file *m, void *data)
2366 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2367 const bool edram = INTEL_GEN(dev_priv) > 8;
2369 seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(dev_priv)));
2370 seq_printf(m, "%s: %lluMB\n", edram ? "eDRAM" : "eLLC",
2371 intel_uncore_edram_size(dev_priv)/1024/1024);
2376 static int i915_guc_load_status_info(struct seq_file *m, void *data)
2378 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2379 struct intel_guc_fw *guc_fw = &dev_priv->guc.guc_fw;
2382 if (!HAS_GUC_UCODE(dev_priv))
2385 seq_printf(m, "GuC firmware status:\n");
2386 seq_printf(m, "\tpath: %s\n",
2387 guc_fw->guc_fw_path);
2388 seq_printf(m, "\tfetch: %s\n",
2389 intel_guc_fw_status_repr(guc_fw->guc_fw_fetch_status));
2390 seq_printf(m, "\tload: %s\n",
2391 intel_guc_fw_status_repr(guc_fw->guc_fw_load_status));
2392 seq_printf(m, "\tversion wanted: %d.%d\n",
2393 guc_fw->guc_fw_major_wanted, guc_fw->guc_fw_minor_wanted);
2394 seq_printf(m, "\tversion found: %d.%d\n",
2395 guc_fw->guc_fw_major_found, guc_fw->guc_fw_minor_found);
2396 seq_printf(m, "\theader: offset is %d; size = %d\n",
2397 guc_fw->header_offset, guc_fw->header_size);
2398 seq_printf(m, "\tuCode: offset is %d; size = %d\n",
2399 guc_fw->ucode_offset, guc_fw->ucode_size);
2400 seq_printf(m, "\tRSA: offset is %d; size = %d\n",
2401 guc_fw->rsa_offset, guc_fw->rsa_size);
2403 tmp = I915_READ(GUC_STATUS);
2405 seq_printf(m, "\nGuC status 0x%08x:\n", tmp);
2406 seq_printf(m, "\tBootrom status = 0x%x\n",
2407 (tmp & GS_BOOTROM_MASK) >> GS_BOOTROM_SHIFT);
2408 seq_printf(m, "\tuKernel status = 0x%x\n",
2409 (tmp & GS_UKERNEL_MASK) >> GS_UKERNEL_SHIFT);
2410 seq_printf(m, "\tMIA Core status = 0x%x\n",
2411 (tmp & GS_MIA_MASK) >> GS_MIA_SHIFT);
2412 seq_puts(m, "\nScratch registers:\n");
2413 for (i = 0; i < 16; i++)
2414 seq_printf(m, "\t%2d: \t0x%x\n", i, I915_READ(SOFT_SCRATCH(i)));
2419 static void i915_guc_log_info(struct seq_file *m,
2420 struct drm_i915_private *dev_priv)
2422 struct intel_guc *guc = &dev_priv->guc;
2424 seq_puts(m, "\nGuC logging stats:\n");
2426 seq_printf(m, "\tISR: flush count %10u, overflow count %10u\n",
2427 guc->log.flush_count[GUC_ISR_LOG_BUFFER],
2428 guc->log.total_overflow_count[GUC_ISR_LOG_BUFFER]);
2430 seq_printf(m, "\tDPC: flush count %10u, overflow count %10u\n",
2431 guc->log.flush_count[GUC_DPC_LOG_BUFFER],
2432 guc->log.total_overflow_count[GUC_DPC_LOG_BUFFER]);
2434 seq_printf(m, "\tCRASH: flush count %10u, overflow count %10u\n",
2435 guc->log.flush_count[GUC_CRASH_DUMP_LOG_BUFFER],
2436 guc->log.total_overflow_count[GUC_CRASH_DUMP_LOG_BUFFER]);
2438 seq_printf(m, "\tTotal flush interrupt count: %u\n",
2439 guc->log.flush_interrupt_count);
2441 seq_printf(m, "\tCapture miss count: %u\n",
2442 guc->log.capture_miss_count);
2445 static void i915_guc_client_info(struct seq_file *m,
2446 struct drm_i915_private *dev_priv,
2447 struct i915_guc_client *client)
2449 struct intel_engine_cs *engine;
2450 enum intel_engine_id id;
2453 seq_printf(m, "\tPriority %d, GuC ctx index: %u, PD offset 0x%x\n",
2454 client->priority, client->ctx_index, client->proc_desc_offset);
2455 seq_printf(m, "\tDoorbell id %d, offset: 0x%x, cookie 0x%x\n",
2456 client->doorbell_id, client->doorbell_offset, client->cookie);
2457 seq_printf(m, "\tWQ size %d, offset: 0x%x, tail %d\n",
2458 client->wq_size, client->wq_offset, client->wq_tail);
2460 seq_printf(m, "\tWork queue full: %u\n", client->no_wq_space);
2461 seq_printf(m, "\tFailed doorbell: %u\n", client->b_fail);
2462 seq_printf(m, "\tLast submission result: %d\n", client->retcode);
2464 for_each_engine(engine, dev_priv, id) {
2465 u64 submissions = client->submissions[id];
2467 seq_printf(m, "\tSubmissions: %llu %s\n",
2468 submissions, engine->name);
2470 seq_printf(m, "\tTotal: %llu\n", tot);
2473 static int i915_guc_info(struct seq_file *m, void *data)
2475 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2476 struct drm_device *dev = &dev_priv->drm;
2477 struct intel_guc guc;
2478 struct i915_guc_client client = {};
2479 struct intel_engine_cs *engine;
2480 enum intel_engine_id id;
2483 if (!HAS_GUC_SCHED(dev_priv))
2486 if (mutex_lock_interruptible(&dev->struct_mutex))
2489 /* Take a local copy of the GuC data, so we can dump it at leisure */
2490 guc = dev_priv->guc;
2491 if (guc.execbuf_client)
2492 client = *guc.execbuf_client;
2494 mutex_unlock(&dev->struct_mutex);
2496 seq_printf(m, "Doorbell map:\n");
2497 seq_printf(m, "\t%*pb\n", GUC_MAX_DOORBELLS, guc.doorbell_bitmap);
2498 seq_printf(m, "Doorbell next cacheline: 0x%x\n\n", guc.db_cacheline);
2500 seq_printf(m, "GuC total action count: %llu\n", guc.action_count);
2501 seq_printf(m, "GuC action failure count: %u\n", guc.action_fail);
2502 seq_printf(m, "GuC last action command: 0x%x\n", guc.action_cmd);
2503 seq_printf(m, "GuC last action status: 0x%x\n", guc.action_status);
2504 seq_printf(m, "GuC last action error code: %d\n", guc.action_err);
2506 seq_printf(m, "\nGuC submissions:\n");
2507 for_each_engine(engine, dev_priv, id) {
2508 u64 submissions = guc.submissions[id];
2509 total += submissions;
2510 seq_printf(m, "\t%-24s: %10llu, last seqno 0x%08x\n",
2511 engine->name, submissions, guc.last_seqno[id]);
2513 seq_printf(m, "\t%s: %llu\n", "Total", total);
2515 seq_printf(m, "\nGuC execbuf client @ %p:\n", guc.execbuf_client);
2516 i915_guc_client_info(m, dev_priv, &client);
2518 i915_guc_log_info(m, dev_priv);
2520 /* Add more as required ... */
2525 static int i915_guc_log_dump(struct seq_file *m, void *data)
2527 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2528 struct drm_i915_gem_object *obj;
2531 if (!dev_priv->guc.log.vma)
2534 obj = dev_priv->guc.log.vma->obj;
2535 for (pg = 0; pg < obj->base.size / PAGE_SIZE; pg++) {
2536 u32 *log = kmap_atomic(i915_gem_object_get_page(obj, pg));
2538 for (i = 0; i < PAGE_SIZE / sizeof(u32); i += 4)
2539 seq_printf(m, "0x%08x 0x%08x 0x%08x 0x%08x\n",
2540 *(log + i), *(log + i + 1),
2541 *(log + i + 2), *(log + i + 3));
2551 static int i915_edp_psr_status(struct seq_file *m, void *data)
2553 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2557 bool enabled = false;
2559 if (!HAS_PSR(dev_priv)) {
2560 seq_puts(m, "PSR not supported\n");
2564 intel_runtime_pm_get(dev_priv);
2566 mutex_lock(&dev_priv->psr.lock);
2567 seq_printf(m, "Sink_Support: %s\n", yesno(dev_priv->psr.sink_support));
2568 seq_printf(m, "Source_OK: %s\n", yesno(dev_priv->psr.source_ok));
2569 seq_printf(m, "Enabled: %s\n", yesno((bool)dev_priv->psr.enabled));
2570 seq_printf(m, "Active: %s\n", yesno(dev_priv->psr.active));
2571 seq_printf(m, "Busy frontbuffer bits: 0x%03x\n",
2572 dev_priv->psr.busy_frontbuffer_bits);
2573 seq_printf(m, "Re-enable work scheduled: %s\n",
2574 yesno(work_busy(&dev_priv->psr.work.work)));
2576 if (HAS_DDI(dev_priv))
2577 enabled = I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE;
2579 for_each_pipe(dev_priv, pipe) {
2580 enum transcoder cpu_transcoder =
2581 intel_pipe_to_cpu_transcoder(dev_priv, pipe);
2582 enum intel_display_power_domain power_domain;
2584 power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder);
2585 if (!intel_display_power_get_if_enabled(dev_priv,
2589 stat[pipe] = I915_READ(VLV_PSRSTAT(pipe)) &
2590 VLV_EDP_PSR_CURR_STATE_MASK;
2591 if ((stat[pipe] == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
2592 (stat[pipe] == VLV_EDP_PSR_ACTIVE_SF_UPDATE))
2595 intel_display_power_put(dev_priv, power_domain);
2599 seq_printf(m, "Main link in standby mode: %s\n",
2600 yesno(dev_priv->psr.link_standby));
2602 seq_printf(m, "HW Enabled & Active bit: %s", yesno(enabled));
2604 if (!HAS_DDI(dev_priv))
2605 for_each_pipe(dev_priv, pipe) {
2606 if ((stat[pipe] == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
2607 (stat[pipe] == VLV_EDP_PSR_ACTIVE_SF_UPDATE))
2608 seq_printf(m, " pipe %c", pipe_name(pipe));
2613 * VLV/CHV PSR has no kind of performance counter
2614 * SKL+ Perf counter is reset to 0 everytime DC state is entered
2616 if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
2617 psrperf = I915_READ(EDP_PSR_PERF_CNT) &
2618 EDP_PSR_PERF_CNT_MASK;
2620 seq_printf(m, "Performance_Counter: %u\n", psrperf);
2622 mutex_unlock(&dev_priv->psr.lock);
2624 intel_runtime_pm_put(dev_priv);
2628 static int i915_sink_crc(struct seq_file *m, void *data)
2630 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2631 struct drm_device *dev = &dev_priv->drm;
2632 struct intel_connector *connector;
2633 struct intel_dp *intel_dp = NULL;
2637 drm_modeset_lock_all(dev);
2638 for_each_intel_connector(dev, connector) {
2639 struct drm_crtc *crtc;
2641 if (!connector->base.state->best_encoder)
2644 crtc = connector->base.state->crtc;
2645 if (!crtc->state->active)
2648 if (connector->base.connector_type != DRM_MODE_CONNECTOR_eDP)
2651 intel_dp = enc_to_intel_dp(connector->base.state->best_encoder);
2653 ret = intel_dp_sink_crc(intel_dp, crc);
2657 seq_printf(m, "%02x%02x%02x%02x%02x%02x\n",
2658 crc[0], crc[1], crc[2],
2659 crc[3], crc[4], crc[5]);
2664 drm_modeset_unlock_all(dev);
2668 static int i915_energy_uJ(struct seq_file *m, void *data)
2670 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2674 if (INTEL_GEN(dev_priv) < 6)
2677 intel_runtime_pm_get(dev_priv);
2679 rdmsrl(MSR_RAPL_POWER_UNIT, power);
2680 power = (power & 0x1f00) >> 8;
2681 units = 1000000 / (1 << power); /* convert to uJ */
2682 power = I915_READ(MCH_SECP_NRG_STTS);
2685 intel_runtime_pm_put(dev_priv);
2687 seq_printf(m, "%llu", (long long unsigned)power);
2692 static int i915_runtime_pm_status(struct seq_file *m, void *unused)
2694 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2695 struct pci_dev *pdev = dev_priv->drm.pdev;
2697 if (!HAS_RUNTIME_PM(dev_priv))
2698 seq_puts(m, "Runtime power management not supported\n");
2700 seq_printf(m, "GPU idle: %s\n", yesno(!dev_priv->gt.awake));
2701 seq_printf(m, "IRQs disabled: %s\n",
2702 yesno(!intel_irqs_enabled(dev_priv)));
2704 seq_printf(m, "Usage count: %d\n",
2705 atomic_read(&dev_priv->drm.dev->power.usage_count));
2707 seq_printf(m, "Device Power Management (CONFIG_PM) disabled\n");
2709 seq_printf(m, "PCI device power state: %s [%d]\n",
2710 pci_power_name(pdev->current_state),
2711 pdev->current_state);
2716 static int i915_power_domain_info(struct seq_file *m, void *unused)
2718 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2719 struct i915_power_domains *power_domains = &dev_priv->power_domains;
2722 mutex_lock(&power_domains->lock);
2724 seq_printf(m, "%-25s %s\n", "Power well/domain", "Use count");
2725 for (i = 0; i < power_domains->power_well_count; i++) {
2726 struct i915_power_well *power_well;
2727 enum intel_display_power_domain power_domain;
2729 power_well = &power_domains->power_wells[i];
2730 seq_printf(m, "%-25s %d\n", power_well->name,
2733 for (power_domain = 0; power_domain < POWER_DOMAIN_NUM;
2735 if (!(BIT(power_domain) & power_well->domains))
2738 seq_printf(m, " %-23s %d\n",
2739 intel_display_power_domain_str(power_domain),
2740 power_domains->domain_use_count[power_domain]);
2744 mutex_unlock(&power_domains->lock);
2749 static int i915_dmc_info(struct seq_file *m, void *unused)
2751 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2752 struct intel_csr *csr;
2754 if (!HAS_CSR(dev_priv)) {
2755 seq_puts(m, "not supported\n");
2759 csr = &dev_priv->csr;
2761 intel_runtime_pm_get(dev_priv);
2763 seq_printf(m, "fw loaded: %s\n", yesno(csr->dmc_payload != NULL));
2764 seq_printf(m, "path: %s\n", csr->fw_path);
2766 if (!csr->dmc_payload)
2769 seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version),
2770 CSR_VERSION_MINOR(csr->version));
2772 if (IS_SKYLAKE(dev_priv) && csr->version >= CSR_VERSION(1, 6)) {
2773 seq_printf(m, "DC3 -> DC5 count: %d\n",
2774 I915_READ(SKL_CSR_DC3_DC5_COUNT));
2775 seq_printf(m, "DC5 -> DC6 count: %d\n",
2776 I915_READ(SKL_CSR_DC5_DC6_COUNT));
2777 } else if (IS_BROXTON(dev_priv) && csr->version >= CSR_VERSION(1, 4)) {
2778 seq_printf(m, "DC3 -> DC5 count: %d\n",
2779 I915_READ(BXT_CSR_DC3_DC5_COUNT));
2783 seq_printf(m, "program base: 0x%08x\n", I915_READ(CSR_PROGRAM(0)));
2784 seq_printf(m, "ssp base: 0x%08x\n", I915_READ(CSR_SSP_BASE));
2785 seq_printf(m, "htp: 0x%08x\n", I915_READ(CSR_HTP_SKL));
2787 intel_runtime_pm_put(dev_priv);
2792 static void intel_seq_print_mode(struct seq_file *m, int tabs,
2793 struct drm_display_mode *mode)
2797 for (i = 0; i < tabs; i++)
2800 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",
2801 mode->base.id, mode->name,
2802 mode->vrefresh, mode->clock,
2803 mode->hdisplay, mode->hsync_start,
2804 mode->hsync_end, mode->htotal,
2805 mode->vdisplay, mode->vsync_start,
2806 mode->vsync_end, mode->vtotal,
2807 mode->type, mode->flags);
2810 static void intel_encoder_info(struct seq_file *m,
2811 struct intel_crtc *intel_crtc,
2812 struct intel_encoder *intel_encoder)
2814 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2815 struct drm_device *dev = &dev_priv->drm;
2816 struct drm_crtc *crtc = &intel_crtc->base;
2817 struct intel_connector *intel_connector;
2818 struct drm_encoder *encoder;
2820 encoder = &intel_encoder->base;
2821 seq_printf(m, "\tencoder %d: type: %s, connectors:\n",
2822 encoder->base.id, encoder->name);
2823 for_each_connector_on_encoder(dev, encoder, intel_connector) {
2824 struct drm_connector *connector = &intel_connector->base;
2825 seq_printf(m, "\t\tconnector %d: type: %s, status: %s",
2828 drm_get_connector_status_name(connector->status));
2829 if (connector->status == connector_status_connected) {
2830 struct drm_display_mode *mode = &crtc->mode;
2831 seq_printf(m, ", mode:\n");
2832 intel_seq_print_mode(m, 2, mode);
2839 static void intel_crtc_info(struct seq_file *m, struct intel_crtc *intel_crtc)
2841 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2842 struct drm_device *dev = &dev_priv->drm;
2843 struct drm_crtc *crtc = &intel_crtc->base;
2844 struct intel_encoder *intel_encoder;
2845 struct drm_plane_state *plane_state = crtc->primary->state;
2846 struct drm_framebuffer *fb = plane_state->fb;
2849 seq_printf(m, "\tfb: %d, pos: %dx%d, size: %dx%d\n",
2850 fb->base.id, plane_state->src_x >> 16,
2851 plane_state->src_y >> 16, fb->width, fb->height);
2853 seq_puts(m, "\tprimary plane disabled\n");
2854 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
2855 intel_encoder_info(m, intel_crtc, intel_encoder);
2858 static void intel_panel_info(struct seq_file *m, struct intel_panel *panel)
2860 struct drm_display_mode *mode = panel->fixed_mode;
2862 seq_printf(m, "\tfixed mode:\n");
2863 intel_seq_print_mode(m, 2, mode);
2866 static void intel_dp_info(struct seq_file *m,
2867 struct intel_connector *intel_connector)
2869 struct intel_encoder *intel_encoder = intel_connector->encoder;
2870 struct intel_dp *intel_dp = enc_to_intel_dp(&intel_encoder->base);
2872 seq_printf(m, "\tDPCD rev: %x\n", intel_dp->dpcd[DP_DPCD_REV]);
2873 seq_printf(m, "\taudio support: %s\n", yesno(intel_dp->has_audio));
2874 if (intel_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)
2875 intel_panel_info(m, &intel_connector->panel);
2877 drm_dp_downstream_debug(m, intel_dp->dpcd, intel_dp->downstream_ports,
2881 static void intel_hdmi_info(struct seq_file *m,
2882 struct intel_connector *intel_connector)
2884 struct intel_encoder *intel_encoder = intel_connector->encoder;
2885 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&intel_encoder->base);
2887 seq_printf(m, "\taudio support: %s\n", yesno(intel_hdmi->has_audio));
2890 static void intel_lvds_info(struct seq_file *m,
2891 struct intel_connector *intel_connector)
2893 intel_panel_info(m, &intel_connector->panel);
2896 static void intel_connector_info(struct seq_file *m,
2897 struct drm_connector *connector)
2899 struct intel_connector *intel_connector = to_intel_connector(connector);
2900 struct intel_encoder *intel_encoder = intel_connector->encoder;
2901 struct drm_display_mode *mode;
2903 seq_printf(m, "connector %d: type %s, status: %s\n",
2904 connector->base.id, connector->name,
2905 drm_get_connector_status_name(connector->status));
2906 if (connector->status == connector_status_connected) {
2907 seq_printf(m, "\tname: %s\n", connector->display_info.name);
2908 seq_printf(m, "\tphysical dimensions: %dx%dmm\n",
2909 connector->display_info.width_mm,
2910 connector->display_info.height_mm);
2911 seq_printf(m, "\tsubpixel order: %s\n",
2912 drm_get_subpixel_order_name(connector->display_info.subpixel_order));
2913 seq_printf(m, "\tCEA rev: %d\n",
2914 connector->display_info.cea_rev);
2917 if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
2920 switch (connector->connector_type) {
2921 case DRM_MODE_CONNECTOR_DisplayPort:
2922 case DRM_MODE_CONNECTOR_eDP:
2923 intel_dp_info(m, intel_connector);
2925 case DRM_MODE_CONNECTOR_LVDS:
2926 if (intel_encoder->type == INTEL_OUTPUT_LVDS)
2927 intel_lvds_info(m, intel_connector);
2929 case DRM_MODE_CONNECTOR_HDMIA:
2930 if (intel_encoder->type == INTEL_OUTPUT_HDMI ||
2931 intel_encoder->type == INTEL_OUTPUT_UNKNOWN)
2932 intel_hdmi_info(m, intel_connector);
2938 seq_printf(m, "\tmodes:\n");
2939 list_for_each_entry(mode, &connector->modes, head)
2940 intel_seq_print_mode(m, 2, mode);
2943 static bool cursor_active(struct drm_i915_private *dev_priv, int pipe)
2947 if (IS_845G(dev_priv) || IS_I865G(dev_priv))
2948 state = I915_READ(CURCNTR(PIPE_A)) & CURSOR_ENABLE;
2950 state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE;
2955 static bool cursor_position(struct drm_i915_private *dev_priv,
2956 int pipe, int *x, int *y)
2960 pos = I915_READ(CURPOS(pipe));
2962 *x = (pos >> CURSOR_X_SHIFT) & CURSOR_POS_MASK;
2963 if (pos & (CURSOR_POS_SIGN << CURSOR_X_SHIFT))
2966 *y = (pos >> CURSOR_Y_SHIFT) & CURSOR_POS_MASK;
2967 if (pos & (CURSOR_POS_SIGN << CURSOR_Y_SHIFT))
2970 return cursor_active(dev_priv, pipe);
2973 static const char *plane_type(enum drm_plane_type type)
2976 case DRM_PLANE_TYPE_OVERLAY:
2978 case DRM_PLANE_TYPE_PRIMARY:
2980 case DRM_PLANE_TYPE_CURSOR:
2983 * Deliberately omitting default: to generate compiler warnings
2984 * when a new drm_plane_type gets added.
2991 static const char *plane_rotation(unsigned int rotation)
2993 static char buf[48];
2995 * According to doc only one DRM_ROTATE_ is allowed but this
2996 * will print them all to visualize if the values are misused
2998 snprintf(buf, sizeof(buf),
2999 "%s%s%s%s%s%s(0x%08x)",
3000 (rotation & DRM_ROTATE_0) ? "0 " : "",
3001 (rotation & DRM_ROTATE_90) ? "90 " : "",
3002 (rotation & DRM_ROTATE_180) ? "180 " : "",
3003 (rotation & DRM_ROTATE_270) ? "270 " : "",
3004 (rotation & DRM_REFLECT_X) ? "FLIPX " : "",
3005 (rotation & DRM_REFLECT_Y) ? "FLIPY " : "",
3011 static void intel_plane_info(struct seq_file *m, struct intel_crtc *intel_crtc)
3013 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3014 struct drm_device *dev = &dev_priv->drm;
3015 struct intel_plane *intel_plane;
3017 for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) {
3018 struct drm_plane_state *state;
3019 struct drm_plane *plane = &intel_plane->base;
3022 if (!plane->state) {
3023 seq_puts(m, "plane->state is NULL!\n");
3027 state = plane->state;
3030 format_name = drm_get_format_name(state->fb->pixel_format);
3032 format_name = kstrdup("N/A", GFP_KERNEL);
3035 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",
3037 plane_type(intel_plane->base.type),
3038 state->crtc_x, state->crtc_y,
3039 state->crtc_w, state->crtc_h,
3040 (state->src_x >> 16),
3041 ((state->src_x & 0xffff) * 15625) >> 10,
3042 (state->src_y >> 16),
3043 ((state->src_y & 0xffff) * 15625) >> 10,
3044 (state->src_w >> 16),
3045 ((state->src_w & 0xffff) * 15625) >> 10,
3046 (state->src_h >> 16),
3047 ((state->src_h & 0xffff) * 15625) >> 10,
3049 plane_rotation(state->rotation));
3055 static void intel_scaler_info(struct seq_file *m, struct intel_crtc *intel_crtc)
3057 struct intel_crtc_state *pipe_config;
3058 int num_scalers = intel_crtc->num_scalers;
3061 pipe_config = to_intel_crtc_state(intel_crtc->base.state);
3063 /* Not all platformas have a scaler */
3065 seq_printf(m, "\tnum_scalers=%d, scaler_users=%x scaler_id=%d",
3067 pipe_config->scaler_state.scaler_users,
3068 pipe_config->scaler_state.scaler_id);
3070 for (i = 0; i < SKL_NUM_SCALERS; i++) {
3071 struct intel_scaler *sc =
3072 &pipe_config->scaler_state.scalers[i];
3074 seq_printf(m, ", scalers[%d]: use=%s, mode=%x",
3075 i, yesno(sc->in_use), sc->mode);
3079 seq_puts(m, "\tNo scalers available on this platform\n");
3083 static int i915_display_info(struct seq_file *m, void *unused)
3085 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3086 struct drm_device *dev = &dev_priv->drm;
3087 struct intel_crtc *crtc;
3088 struct drm_connector *connector;
3090 intel_runtime_pm_get(dev_priv);
3091 drm_modeset_lock_all(dev);
3092 seq_printf(m, "CRTC info\n");
3093 seq_printf(m, "---------\n");
3094 for_each_intel_crtc(dev, crtc) {
3096 struct intel_crtc_state *pipe_config;
3099 pipe_config = to_intel_crtc_state(crtc->base.state);
3101 seq_printf(m, "CRTC %d: pipe: %c, active=%s, (size=%dx%d), dither=%s, bpp=%d\n",
3102 crtc->base.base.id, pipe_name(crtc->pipe),
3103 yesno(pipe_config->base.active),
3104 pipe_config->pipe_src_w, pipe_config->pipe_src_h,
3105 yesno(pipe_config->dither), pipe_config->pipe_bpp);
3107 if (pipe_config->base.active) {
3108 intel_crtc_info(m, crtc);
3110 active = cursor_position(dev_priv, crtc->pipe, &x, &y);
3111 seq_printf(m, "\tcursor visible? %s, position (%d, %d), size %dx%d, addr 0x%08x, active? %s\n",
3112 yesno(crtc->cursor_base),
3113 x, y, crtc->base.cursor->state->crtc_w,
3114 crtc->base.cursor->state->crtc_h,
3115 crtc->cursor_addr, yesno(active));
3116 intel_scaler_info(m, crtc);
3117 intel_plane_info(m, crtc);
3120 seq_printf(m, "\tunderrun reporting: cpu=%s pch=%s \n",
3121 yesno(!crtc->cpu_fifo_underrun_disabled),
3122 yesno(!crtc->pch_fifo_underrun_disabled));
3125 seq_printf(m, "\n");
3126 seq_printf(m, "Connector info\n");
3127 seq_printf(m, "--------------\n");
3128 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3129 intel_connector_info(m, connector);
3131 drm_modeset_unlock_all(dev);
3132 intel_runtime_pm_put(dev_priv);
3137 static int i915_engine_info(struct seq_file *m, void *unused)
3139 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3140 struct intel_engine_cs *engine;
3141 enum intel_engine_id id;
3143 intel_runtime_pm_get(dev_priv);
3145 for_each_engine(engine, dev_priv, id) {
3146 struct intel_breadcrumbs *b = &engine->breadcrumbs;
3147 struct drm_i915_gem_request *rq;
3151 seq_printf(m, "%s\n", engine->name);
3152 seq_printf(m, "\tcurrent seqno %x, last %x, hangcheck %x [score %d]\n",
3153 intel_engine_get_seqno(engine),
3154 engine->last_submitted_seqno,
3155 engine->hangcheck.seqno,
3156 engine->hangcheck.score);
3160 seq_printf(m, "\tRequests:\n");
3162 rq = list_first_entry(&engine->request_list,
3163 struct drm_i915_gem_request, link);
3164 if (&rq->link != &engine->request_list)
3165 print_request(m, rq, "\t\tfirst ");
3167 rq = list_last_entry(&engine->request_list,
3168 struct drm_i915_gem_request, link);
3169 if (&rq->link != &engine->request_list)
3170 print_request(m, rq, "\t\tlast ");
3172 rq = i915_gem_find_active_request(engine);
3174 print_request(m, rq, "\t\tactive ");
3176 "\t\t[head %04x, postfix %04x, tail %04x, batch 0x%08x_%08x]\n",
3177 rq->head, rq->postfix, rq->tail,
3178 rq->batch ? upper_32_bits(rq->batch->node.start) : ~0u,
3179 rq->batch ? lower_32_bits(rq->batch->node.start) : ~0u);
3182 seq_printf(m, "\tRING_START: 0x%08x [0x%08x]\n",
3183 I915_READ(RING_START(engine->mmio_base)),
3184 rq ? i915_ggtt_offset(rq->ring->vma) : 0);
3185 seq_printf(m, "\tRING_HEAD: 0x%08x [0x%08x]\n",
3186 I915_READ(RING_HEAD(engine->mmio_base)) & HEAD_ADDR,
3187 rq ? rq->ring->head : 0);
3188 seq_printf(m, "\tRING_TAIL: 0x%08x [0x%08x]\n",
3189 I915_READ(RING_TAIL(engine->mmio_base)) & TAIL_ADDR,
3190 rq ? rq->ring->tail : 0);
3191 seq_printf(m, "\tRING_CTL: 0x%08x [%s]\n",
3192 I915_READ(RING_CTL(engine->mmio_base)),
3193 I915_READ(RING_CTL(engine->mmio_base)) & (RING_WAIT | RING_WAIT_SEMAPHORE) ? "waiting" : "");
3197 addr = intel_engine_get_active_head(engine);
3198 seq_printf(m, "\tACTHD: 0x%08x_%08x\n",
3199 upper_32_bits(addr), lower_32_bits(addr));
3200 addr = intel_engine_get_last_batch_head(engine);
3201 seq_printf(m, "\tBBADDR: 0x%08x_%08x\n",
3202 upper_32_bits(addr), lower_32_bits(addr));
3204 if (i915.enable_execlists) {
3205 u32 ptr, read, write;
3207 seq_printf(m, "\tExeclist status: 0x%08x %08x\n",
3208 I915_READ(RING_EXECLIST_STATUS_LO(engine)),
3209 I915_READ(RING_EXECLIST_STATUS_HI(engine)));
3211 ptr = I915_READ(RING_CONTEXT_STATUS_PTR(engine));
3212 read = GEN8_CSB_READ_PTR(ptr);
3213 write = GEN8_CSB_WRITE_PTR(ptr);
3214 seq_printf(m, "\tExeclist CSB read %d, write %d\n",
3216 if (read >= GEN8_CSB_ENTRIES)
3218 if (write >= GEN8_CSB_ENTRIES)
3221 write += GEN8_CSB_ENTRIES;
3222 while (read < write) {
3223 unsigned int idx = ++read % GEN8_CSB_ENTRIES;
3225 seq_printf(m, "\tExeclist CSB[%d]: 0x%08x, context: %d\n",
3227 I915_READ(RING_CONTEXT_STATUS_BUF_LO(engine, idx)),
3228 I915_READ(RING_CONTEXT_STATUS_BUF_HI(engine, idx)));
3232 rq = READ_ONCE(engine->execlist_port[0].request);
3234 print_request(m, rq, "\t\tELSP[0] ");
3236 seq_printf(m, "\t\tELSP[0] idle\n");
3237 rq = READ_ONCE(engine->execlist_port[1].request);
3239 print_request(m, rq, "\t\tELSP[1] ");
3241 seq_printf(m, "\t\tELSP[1] idle\n");
3243 } else if (INTEL_GEN(dev_priv) > 6) {
3244 seq_printf(m, "\tPP_DIR_BASE: 0x%08x\n",
3245 I915_READ(RING_PP_DIR_BASE(engine)));
3246 seq_printf(m, "\tPP_DIR_BASE_READ: 0x%08x\n",
3247 I915_READ(RING_PP_DIR_BASE_READ(engine)));
3248 seq_printf(m, "\tPP_DIR_DCLV: 0x%08x\n",
3249 I915_READ(RING_PP_DIR_DCLV(engine)));
3252 spin_lock(&b->lock);
3253 for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) {
3254 struct intel_wait *w = container_of(rb, typeof(*w), node);
3256 seq_printf(m, "\t%s [%d] waiting for %x\n",
3257 w->tsk->comm, w->tsk->pid, w->seqno);
3259 spin_unlock(&b->lock);
3264 intel_runtime_pm_put(dev_priv);
3269 static int i915_semaphore_status(struct seq_file *m, void *unused)
3271 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3272 struct drm_device *dev = &dev_priv->drm;
3273 struct intel_engine_cs *engine;
3274 int num_rings = INTEL_INFO(dev_priv)->num_rings;
3275 enum intel_engine_id id;
3278 if (!i915.semaphores) {
3279 seq_puts(m, "Semaphores are disabled\n");
3283 ret = mutex_lock_interruptible(&dev->struct_mutex);
3286 intel_runtime_pm_get(dev_priv);
3288 if (IS_BROADWELL(dev_priv)) {
3292 page = i915_gem_object_get_page(dev_priv->semaphore->obj, 0);
3294 seqno = (uint64_t *)kmap_atomic(page);
3295 for_each_engine(engine, dev_priv, id) {
3298 seq_printf(m, "%s\n", engine->name);
3300 seq_puts(m, " Last signal:");
3301 for (j = 0; j < num_rings; j++) {
3302 offset = id * I915_NUM_ENGINES + j;
3303 seq_printf(m, "0x%08llx (0x%02llx) ",
3304 seqno[offset], offset * 8);
3308 seq_puts(m, " Last wait: ");
3309 for (j = 0; j < num_rings; j++) {
3310 offset = id + (j * I915_NUM_ENGINES);
3311 seq_printf(m, "0x%08llx (0x%02llx) ",
3312 seqno[offset], offset * 8);
3317 kunmap_atomic(seqno);
3319 seq_puts(m, " Last signal:");
3320 for_each_engine(engine, dev_priv, id)
3321 for (j = 0; j < num_rings; j++)
3322 seq_printf(m, "0x%08x\n",
3323 I915_READ(engine->semaphore.mbox.signal[j]));
3327 seq_puts(m, "\nSync seqno:\n");
3328 for_each_engine(engine, dev_priv, id) {
3329 for (j = 0; j < num_rings; j++)
3330 seq_printf(m, " 0x%08x ",
3331 engine->semaphore.sync_seqno[j]);
3336 intel_runtime_pm_put(dev_priv);
3337 mutex_unlock(&dev->struct_mutex);
3341 static int i915_shared_dplls_info(struct seq_file *m, void *unused)
3343 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3344 struct drm_device *dev = &dev_priv->drm;
3347 drm_modeset_lock_all(dev);
3348 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
3349 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
3351 seq_printf(m, "DPLL%i: %s, id: %i\n", i, pll->name, pll->id);
3352 seq_printf(m, " crtc_mask: 0x%08x, active: 0x%x, on: %s\n",
3353 pll->config.crtc_mask, pll->active_mask, yesno(pll->on));
3354 seq_printf(m, " tracked hardware state:\n");
3355 seq_printf(m, " dpll: 0x%08x\n", pll->config.hw_state.dpll);
3356 seq_printf(m, " dpll_md: 0x%08x\n",
3357 pll->config.hw_state.dpll_md);
3358 seq_printf(m, " fp0: 0x%08x\n", pll->config.hw_state.fp0);
3359 seq_printf(m, " fp1: 0x%08x\n", pll->config.hw_state.fp1);
3360 seq_printf(m, " wrpll: 0x%08x\n", pll->config.hw_state.wrpll);
3362 drm_modeset_unlock_all(dev);
3367 static int i915_wa_registers(struct seq_file *m, void *unused)
3371 struct intel_engine_cs *engine;
3372 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3373 struct drm_device *dev = &dev_priv->drm;
3374 struct i915_workarounds *workarounds = &dev_priv->workarounds;
3375 enum intel_engine_id id;
3377 ret = mutex_lock_interruptible(&dev->struct_mutex);
3381 intel_runtime_pm_get(dev_priv);
3383 seq_printf(m, "Workarounds applied: %d\n", workarounds->count);
3384 for_each_engine(engine, dev_priv, id)
3385 seq_printf(m, "HW whitelist count for %s: %d\n",
3386 engine->name, workarounds->hw_whitelist_count[id]);
3387 for (i = 0; i < workarounds->count; ++i) {
3389 u32 mask, value, read;
3392 addr = workarounds->reg[i].addr;
3393 mask = workarounds->reg[i].mask;
3394 value = workarounds->reg[i].value;
3395 read = I915_READ(addr);
3396 ok = (value & mask) == (read & mask);
3397 seq_printf(m, "0x%X: 0x%08X, mask: 0x%08X, read: 0x%08x, status: %s\n",
3398 i915_mmio_reg_offset(addr), value, mask, read, ok ? "OK" : "FAIL");
3401 intel_runtime_pm_put(dev_priv);
3402 mutex_unlock(&dev->struct_mutex);
3407 static int i915_ddb_info(struct seq_file *m, void *unused)
3409 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3410 struct drm_device *dev = &dev_priv->drm;
3411 struct skl_ddb_allocation *ddb;
3412 struct skl_ddb_entry *entry;
3416 if (INTEL_GEN(dev_priv) < 9)
3419 drm_modeset_lock_all(dev);
3421 ddb = &dev_priv->wm.skl_hw.ddb;
3423 seq_printf(m, "%-15s%8s%8s%8s\n", "", "Start", "End", "Size");
3425 for_each_pipe(dev_priv, pipe) {
3426 seq_printf(m, "Pipe %c\n", pipe_name(pipe));
3428 for_each_plane(dev_priv, pipe, plane) {
3429 entry = &ddb->plane[pipe][plane];
3430 seq_printf(m, " Plane%-8d%8u%8u%8u\n", plane + 1,
3431 entry->start, entry->end,
3432 skl_ddb_entry_size(entry));
3435 entry = &ddb->plane[pipe][PLANE_CURSOR];
3436 seq_printf(m, " %-13s%8u%8u%8u\n", "Cursor", entry->start,
3437 entry->end, skl_ddb_entry_size(entry));
3440 drm_modeset_unlock_all(dev);
3445 static void drrs_status_per_crtc(struct seq_file *m,
3446 struct drm_device *dev,
3447 struct intel_crtc *intel_crtc)
3449 struct drm_i915_private *dev_priv = to_i915(dev);
3450 struct i915_drrs *drrs = &dev_priv->drrs;
3452 struct drm_connector *connector;
3454 drm_for_each_connector(connector, dev) {
3455 if (connector->state->crtc != &intel_crtc->base)
3458 seq_printf(m, "%s:\n", connector->name);
3461 if (dev_priv->vbt.drrs_type == STATIC_DRRS_SUPPORT)
3462 seq_puts(m, "\tVBT: DRRS_type: Static");
3463 else if (dev_priv->vbt.drrs_type == SEAMLESS_DRRS_SUPPORT)
3464 seq_puts(m, "\tVBT: DRRS_type: Seamless");
3465 else if (dev_priv->vbt.drrs_type == DRRS_NOT_SUPPORTED)
3466 seq_puts(m, "\tVBT: DRRS_type: None");
3468 seq_puts(m, "\tVBT: DRRS_type: FIXME: Unrecognized Value");
3470 seq_puts(m, "\n\n");
3472 if (to_intel_crtc_state(intel_crtc->base.state)->has_drrs) {
3473 struct intel_panel *panel;
3475 mutex_lock(&drrs->mutex);
3476 /* DRRS Supported */
3477 seq_puts(m, "\tDRRS Supported: Yes\n");
3479 /* disable_drrs() will make drrs->dp NULL */
3481 seq_puts(m, "Idleness DRRS: Disabled");
3482 mutex_unlock(&drrs->mutex);
3486 panel = &drrs->dp->attached_connector->panel;
3487 seq_printf(m, "\t\tBusy_frontbuffer_bits: 0x%X",
3488 drrs->busy_frontbuffer_bits);
3490 seq_puts(m, "\n\t\t");
3491 if (drrs->refresh_rate_type == DRRS_HIGH_RR) {
3492 seq_puts(m, "DRRS_State: DRRS_HIGH_RR\n");
3493 vrefresh = panel->fixed_mode->vrefresh;
3494 } else if (drrs->refresh_rate_type == DRRS_LOW_RR) {
3495 seq_puts(m, "DRRS_State: DRRS_LOW_RR\n");
3496 vrefresh = panel->downclock_mode->vrefresh;
3498 seq_printf(m, "DRRS_State: Unknown(%d)\n",
3499 drrs->refresh_rate_type);
3500 mutex_unlock(&drrs->mutex);
3503 seq_printf(m, "\t\tVrefresh: %d", vrefresh);
3505 seq_puts(m, "\n\t\t");
3506 mutex_unlock(&drrs->mutex);
3508 /* DRRS not supported. Print the VBT parameter*/
3509 seq_puts(m, "\tDRRS Supported : No");
3514 static int i915_drrs_status(struct seq_file *m, void *unused)
3516 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3517 struct drm_device *dev = &dev_priv->drm;
3518 struct intel_crtc *intel_crtc;
3519 int active_crtc_cnt = 0;
3521 drm_modeset_lock_all(dev);
3522 for_each_intel_crtc(dev, intel_crtc) {
3523 if (intel_crtc->base.state->active) {
3525 seq_printf(m, "\nCRTC %d: ", active_crtc_cnt);
3527 drrs_status_per_crtc(m, dev, intel_crtc);
3530 drm_modeset_unlock_all(dev);
3532 if (!active_crtc_cnt)
3533 seq_puts(m, "No active crtc found\n");
3538 struct pipe_crc_info {
3540 struct drm_i915_private *dev_priv;
3544 static int i915_dp_mst_info(struct seq_file *m, void *unused)
3546 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3547 struct drm_device *dev = &dev_priv->drm;
3548 struct intel_encoder *intel_encoder;
3549 struct intel_digital_port *intel_dig_port;
3550 struct drm_connector *connector;
3552 drm_modeset_lock_all(dev);
3553 drm_for_each_connector(connector, dev) {
3554 if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
3557 intel_encoder = intel_attached_encoder(connector);
3558 if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
3561 intel_dig_port = enc_to_dig_port(&intel_encoder->base);
3562 if (!intel_dig_port->dp.can_mst)
3565 seq_printf(m, "MST Source Port %c\n",
3566 port_name(intel_dig_port->port));
3567 drm_dp_mst_dump_topology(m, &intel_dig_port->dp.mst_mgr);
3569 drm_modeset_unlock_all(dev);
3573 static int i915_pipe_crc_open(struct inode *inode, struct file *filep)
3575 struct pipe_crc_info *info = inode->i_private;
3576 struct drm_i915_private *dev_priv = info->dev_priv;
3577 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
3579 if (info->pipe >= INTEL_INFO(dev_priv)->num_pipes)
3582 spin_lock_irq(&pipe_crc->lock);
3584 if (pipe_crc->opened) {
3585 spin_unlock_irq(&pipe_crc->lock);
3586 return -EBUSY; /* already open */
3589 pipe_crc->opened = true;
3590 filep->private_data = inode->i_private;
3592 spin_unlock_irq(&pipe_crc->lock);
3597 static int i915_pipe_crc_release(struct inode *inode, struct file *filep)
3599 struct pipe_crc_info *info = inode->i_private;
3600 struct drm_i915_private *dev_priv = info->dev_priv;
3601 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
3603 spin_lock_irq(&pipe_crc->lock);
3604 pipe_crc->opened = false;
3605 spin_unlock_irq(&pipe_crc->lock);
3610 /* (6 fields, 8 chars each, space separated (5) + '\n') */
3611 #define PIPE_CRC_LINE_LEN (6 * 8 + 5 + 1)
3612 /* account for \'0' */
3613 #define PIPE_CRC_BUFFER_LEN (PIPE_CRC_LINE_LEN + 1)
3615 static int pipe_crc_data_count(struct intel_pipe_crc *pipe_crc)
3617 assert_spin_locked(&pipe_crc->lock);
3618 return CIRC_CNT(pipe_crc->head, pipe_crc->tail,
3619 INTEL_PIPE_CRC_ENTRIES_NR);
3623 i915_pipe_crc_read(struct file *filep, char __user *user_buf, size_t count,
3626 struct pipe_crc_info *info = filep->private_data;
3627 struct drm_i915_private *dev_priv = info->dev_priv;
3628 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
3629 char buf[PIPE_CRC_BUFFER_LEN];
3634 * Don't allow user space to provide buffers not big enough to hold
3637 if (count < PIPE_CRC_LINE_LEN)
3640 if (pipe_crc->source == INTEL_PIPE_CRC_SOURCE_NONE)
3643 /* nothing to read */
3644 spin_lock_irq(&pipe_crc->lock);
3645 while (pipe_crc_data_count(pipe_crc) == 0) {
3648 if (filep->f_flags & O_NONBLOCK) {
3649 spin_unlock_irq(&pipe_crc->lock);
3653 ret = wait_event_interruptible_lock_irq(pipe_crc->wq,
3654 pipe_crc_data_count(pipe_crc), pipe_crc->lock);
3656 spin_unlock_irq(&pipe_crc->lock);
3661 /* We now have one or more entries to read */
3662 n_entries = count / PIPE_CRC_LINE_LEN;
3665 while (n_entries > 0) {
3666 struct intel_pipe_crc_entry *entry =
3667 &pipe_crc->entries[pipe_crc->tail];
3669 if (CIRC_CNT(pipe_crc->head, pipe_crc->tail,
3670 INTEL_PIPE_CRC_ENTRIES_NR) < 1)
3673 BUILD_BUG_ON_NOT_POWER_OF_2(INTEL_PIPE_CRC_ENTRIES_NR);
3674 pipe_crc->tail = (pipe_crc->tail + 1) & (INTEL_PIPE_CRC_ENTRIES_NR - 1);
3676 bytes_read += snprintf(buf, PIPE_CRC_BUFFER_LEN,
3677 "%8u %8x %8x %8x %8x %8x\n",
3678 entry->frame, entry->crc[0],
3679 entry->crc[1], entry->crc[2],
3680 entry->crc[3], entry->crc[4]);
3682 spin_unlock_irq(&pipe_crc->lock);
3684 if (copy_to_user(user_buf, buf, PIPE_CRC_LINE_LEN))
3687 user_buf += PIPE_CRC_LINE_LEN;
3690 spin_lock_irq(&pipe_crc->lock);
3693 spin_unlock_irq(&pipe_crc->lock);
3698 static const struct file_operations i915_pipe_crc_fops = {
3699 .owner = THIS_MODULE,
3700 .open = i915_pipe_crc_open,
3701 .read = i915_pipe_crc_read,
3702 .release = i915_pipe_crc_release,
3705 static struct pipe_crc_info i915_pipe_crc_data[I915_MAX_PIPES] = {
3707 .name = "i915_pipe_A_crc",
3711 .name = "i915_pipe_B_crc",
3715 .name = "i915_pipe_C_crc",
3720 static int i915_pipe_crc_create(struct dentry *root, struct drm_minor *minor,
3723 struct drm_i915_private *dev_priv = to_i915(minor->dev);
3725 struct pipe_crc_info *info = &i915_pipe_crc_data[pipe];
3727 info->dev_priv = dev_priv;
3728 ent = debugfs_create_file(info->name, S_IRUGO, root, info,
3729 &i915_pipe_crc_fops);
3733 return drm_add_fake_info_node(minor, ent, info);
3736 static const char * const pipe_crc_sources[] = {
3749 static const char *pipe_crc_source_name(enum intel_pipe_crc_source source)
3751 BUILD_BUG_ON(ARRAY_SIZE(pipe_crc_sources) != INTEL_PIPE_CRC_SOURCE_MAX);
3752 return pipe_crc_sources[source];
3755 static int display_crc_ctl_show(struct seq_file *m, void *data)
3757 struct drm_i915_private *dev_priv = m->private;
3760 for (i = 0; i < I915_MAX_PIPES; i++)
3761 seq_printf(m, "%c %s\n", pipe_name(i),
3762 pipe_crc_source_name(dev_priv->pipe_crc[i].source));
3767 static int display_crc_ctl_open(struct inode *inode, struct file *file)
3769 return single_open(file, display_crc_ctl_show, inode->i_private);
3772 static int i8xx_pipe_crc_ctl_reg(enum intel_pipe_crc_source *source,
3775 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
3776 *source = INTEL_PIPE_CRC_SOURCE_PIPE;
3779 case INTEL_PIPE_CRC_SOURCE_PIPE:
3780 *val = PIPE_CRC_ENABLE | PIPE_CRC_INCLUDE_BORDER_I8XX;
3782 case INTEL_PIPE_CRC_SOURCE_NONE:
3792 static int i9xx_pipe_crc_auto_source(struct drm_i915_private *dev_priv,
3794 enum intel_pipe_crc_source *source)
3796 struct drm_device *dev = &dev_priv->drm;
3797 struct intel_encoder *encoder;
3798 struct intel_crtc *crtc;
3799 struct intel_digital_port *dig_port;
3802 *source = INTEL_PIPE_CRC_SOURCE_PIPE;
3804 drm_modeset_lock_all(dev);
3805 for_each_intel_encoder(dev, encoder) {
3806 if (!encoder->base.crtc)
3809 crtc = to_intel_crtc(encoder->base.crtc);
3811 if (crtc->pipe != pipe)
3814 switch (encoder->type) {
3815 case INTEL_OUTPUT_TVOUT:
3816 *source = INTEL_PIPE_CRC_SOURCE_TV;
3818 case INTEL_OUTPUT_DP:
3819 case INTEL_OUTPUT_EDP:
3820 dig_port = enc_to_dig_port(&encoder->base);
3821 switch (dig_port->port) {
3823 *source = INTEL_PIPE_CRC_SOURCE_DP_B;
3826 *source = INTEL_PIPE_CRC_SOURCE_DP_C;
3829 *source = INTEL_PIPE_CRC_SOURCE_DP_D;
3832 WARN(1, "nonexisting DP port %c\n",
3833 port_name(dig_port->port));
3841 drm_modeset_unlock_all(dev);
3846 static int vlv_pipe_crc_ctl_reg(struct drm_i915_private *dev_priv,
3848 enum intel_pipe_crc_source *source,
3851 bool need_stable_symbols = false;
3853 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO) {
3854 int ret = i9xx_pipe_crc_auto_source(dev_priv, pipe, source);
3860 case INTEL_PIPE_CRC_SOURCE_PIPE:
3861 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_VLV;
3863 case INTEL_PIPE_CRC_SOURCE_DP_B:
3864 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_B_VLV;
3865 need_stable_symbols = true;
3867 case INTEL_PIPE_CRC_SOURCE_DP_C:
3868 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_C_VLV;
3869 need_stable_symbols = true;
3871 case INTEL_PIPE_CRC_SOURCE_DP_D:
3872 if (!IS_CHERRYVIEW(dev_priv))
3874 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_D_VLV;
3875 need_stable_symbols = true;
3877 case INTEL_PIPE_CRC_SOURCE_NONE:
3885 * When the pipe CRC tap point is after the transcoders we need
3886 * to tweak symbol-level features to produce a deterministic series of
3887 * symbols for a given frame. We need to reset those features only once
3888 * a frame (instead of every nth symbol):
3889 * - DC-balance: used to ensure a better clock recovery from the data
3891 * - DisplayPort scrambling: used for EMI reduction
3893 if (need_stable_symbols) {
3894 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
3896 tmp |= DC_BALANCE_RESET_VLV;
3899 tmp |= PIPE_A_SCRAMBLE_RESET;
3902 tmp |= PIPE_B_SCRAMBLE_RESET;
3905 tmp |= PIPE_C_SCRAMBLE_RESET;
3910 I915_WRITE(PORT_DFT2_G4X, tmp);
3916 static int i9xx_pipe_crc_ctl_reg(struct drm_i915_private *dev_priv,
3918 enum intel_pipe_crc_source *source,
3921 bool need_stable_symbols = false;
3923 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO) {
3924 int ret = i9xx_pipe_crc_auto_source(dev_priv, pipe, source);
3930 case INTEL_PIPE_CRC_SOURCE_PIPE:
3931 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_I9XX;
3933 case INTEL_PIPE_CRC_SOURCE_TV:
3934 if (!SUPPORTS_TV(dev_priv))
3936 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_TV_PRE;
3938 case INTEL_PIPE_CRC_SOURCE_DP_B:
3939 if (!IS_G4X(dev_priv))
3941 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_B_G4X;
3942 need_stable_symbols = true;
3944 case INTEL_PIPE_CRC_SOURCE_DP_C:
3945 if (!IS_G4X(dev_priv))
3947 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_C_G4X;
3948 need_stable_symbols = true;
3950 case INTEL_PIPE_CRC_SOURCE_DP_D:
3951 if (!IS_G4X(dev_priv))
3953 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_D_G4X;
3954 need_stable_symbols = true;
3956 case INTEL_PIPE_CRC_SOURCE_NONE:
3964 * When the pipe CRC tap point is after the transcoders we need
3965 * to tweak symbol-level features to produce a deterministic series of
3966 * symbols for a given frame. We need to reset those features only once
3967 * a frame (instead of every nth symbol):
3968 * - DC-balance: used to ensure a better clock recovery from the data
3970 * - DisplayPort scrambling: used for EMI reduction
3972 if (need_stable_symbols) {
3973 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
3975 WARN_ON(!IS_G4X(dev_priv));
3977 I915_WRITE(PORT_DFT_I9XX,
3978 I915_READ(PORT_DFT_I9XX) | DC_BALANCE_RESET);
3981 tmp |= PIPE_A_SCRAMBLE_RESET;
3983 tmp |= PIPE_B_SCRAMBLE_RESET;
3985 I915_WRITE(PORT_DFT2_G4X, tmp);
3991 static void vlv_undo_pipe_scramble_reset(struct drm_i915_private *dev_priv,
3994 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
3998 tmp &= ~PIPE_A_SCRAMBLE_RESET;
4001 tmp &= ~PIPE_B_SCRAMBLE_RESET;
4004 tmp &= ~PIPE_C_SCRAMBLE_RESET;
4009 if (!(tmp & PIPE_SCRAMBLE_RESET_MASK))
4010 tmp &= ~DC_BALANCE_RESET_VLV;
4011 I915_WRITE(PORT_DFT2_G4X, tmp);
4015 static void g4x_undo_pipe_scramble_reset(struct drm_i915_private *dev_priv,
4018 uint32_t tmp = I915_READ(PORT_DFT2_G4X);
4021 tmp &= ~PIPE_A_SCRAMBLE_RESET;
4023 tmp &= ~PIPE_B_SCRAMBLE_RESET;
4024 I915_WRITE(PORT_DFT2_G4X, tmp);
4026 if (!(tmp & PIPE_SCRAMBLE_RESET_MASK)) {
4027 I915_WRITE(PORT_DFT_I9XX,
4028 I915_READ(PORT_DFT_I9XX) & ~DC_BALANCE_RESET);
4032 static int ilk_pipe_crc_ctl_reg(enum intel_pipe_crc_source *source,
4035 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
4036 *source = INTEL_PIPE_CRC_SOURCE_PIPE;
4039 case INTEL_PIPE_CRC_SOURCE_PLANE1:
4040 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_ILK;
4042 case INTEL_PIPE_CRC_SOURCE_PLANE2:
4043 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_ILK;
4045 case INTEL_PIPE_CRC_SOURCE_PIPE:
4046 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_ILK;
4048 case INTEL_PIPE_CRC_SOURCE_NONE:
4058 static void hsw_trans_edp_pipe_A_crc_wa(struct drm_i915_private *dev_priv,
4061 struct drm_device *dev = &dev_priv->drm;
4062 struct intel_crtc *crtc =
4063 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_A]);
4064 struct intel_crtc_state *pipe_config;
4065 struct drm_atomic_state *state;
4068 drm_modeset_lock_all(dev);
4069 state = drm_atomic_state_alloc(dev);
4075 state->acquire_ctx = drm_modeset_legacy_acquire_ctx(&crtc->base);
4076 pipe_config = intel_atomic_get_crtc_state(state, crtc);
4077 if (IS_ERR(pipe_config)) {
4078 ret = PTR_ERR(pipe_config);
4082 pipe_config->pch_pfit.force_thru = enable;
4083 if (pipe_config->cpu_transcoder == TRANSCODER_EDP &&
4084 pipe_config->pch_pfit.enabled != enable)
4085 pipe_config->base.connectors_changed = true;
4087 ret = drm_atomic_commit(state);
4089 WARN(ret, "Toggling workaround to %i returns %i\n", enable, ret);
4090 drm_modeset_unlock_all(dev);
4091 drm_atomic_state_put(state);
4094 static int ivb_pipe_crc_ctl_reg(struct drm_i915_private *dev_priv,
4096 enum intel_pipe_crc_source *source,
4099 if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
4100 *source = INTEL_PIPE_CRC_SOURCE_PF;
4103 case INTEL_PIPE_CRC_SOURCE_PLANE1:
4104 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_IVB;
4106 case INTEL_PIPE_CRC_SOURCE_PLANE2:
4107 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_IVB;
4109 case INTEL_PIPE_CRC_SOURCE_PF:
4110 if (IS_HASWELL(dev_priv) && pipe == PIPE_A)
4111 hsw_trans_edp_pipe_A_crc_wa(dev_priv, true);
4113 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PF_IVB;
4115 case INTEL_PIPE_CRC_SOURCE_NONE:
4125 static int pipe_crc_set_source(struct drm_i915_private *dev_priv,
4127 enum intel_pipe_crc_source source)
4129 struct drm_device *dev = &dev_priv->drm;
4130 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];
4131 struct intel_crtc *crtc =
4132 to_intel_crtc(intel_get_crtc_for_pipe(dev, pipe));
4133 enum intel_display_power_domain power_domain;
4134 u32 val = 0; /* shut up gcc */
4137 if (pipe_crc->source == source)
4140 /* forbid changing the source without going back to 'none' */
4141 if (pipe_crc->source && source)
4144 power_domain = POWER_DOMAIN_PIPE(pipe);
4145 if (!intel_display_power_get_if_enabled(dev_priv, power_domain)) {
4146 DRM_DEBUG_KMS("Trying to capture CRC while pipe is off\n");
4150 if (IS_GEN2(dev_priv))
4151 ret = i8xx_pipe_crc_ctl_reg(&source, &val);
4152 else if (INTEL_GEN(dev_priv) < 5)
4153 ret = i9xx_pipe_crc_ctl_reg(dev_priv, pipe, &source, &val);
4154 else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
4155 ret = vlv_pipe_crc_ctl_reg(dev_priv, pipe, &source, &val);
4156 else if (IS_GEN5(dev_priv) || IS_GEN6(dev_priv))
4157 ret = ilk_pipe_crc_ctl_reg(&source, &val);
4159 ret = ivb_pipe_crc_ctl_reg(dev_priv, pipe, &source, &val);
4164 /* none -> real source transition */
4166 struct intel_pipe_crc_entry *entries;
4168 DRM_DEBUG_DRIVER("collecting CRCs for pipe %c, %s\n",
4169 pipe_name(pipe), pipe_crc_source_name(source));
4171 entries = kcalloc(INTEL_PIPE_CRC_ENTRIES_NR,
4172 sizeof(pipe_crc->entries[0]),
4180 * When IPS gets enabled, the pipe CRC changes. Since IPS gets
4181 * enabled and disabled dynamically based on package C states,
4182 * user space can't make reliable use of the CRCs, so let's just
4183 * completely disable it.
4185 hsw_disable_ips(crtc);
4187 spin_lock_irq(&pipe_crc->lock);
4188 kfree(pipe_crc->entries);
4189 pipe_crc->entries = entries;
4192 spin_unlock_irq(&pipe_crc->lock);
4195 pipe_crc->source = source;
4197 I915_WRITE(PIPE_CRC_CTL(pipe), val);
4198 POSTING_READ(PIPE_CRC_CTL(pipe));
4200 /* real source -> none transition */
4201 if (source == INTEL_PIPE_CRC_SOURCE_NONE) {
4202 struct intel_pipe_crc_entry *entries;
4203 struct intel_crtc *crtc =
4204 to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
4206 DRM_DEBUG_DRIVER("stopping CRCs for pipe %c\n",
4209 drm_modeset_lock(&crtc->base.mutex, NULL);
4210 if (crtc->base.state->active)
4211 intel_wait_for_vblank(dev, pipe);
4212 drm_modeset_unlock(&crtc->base.mutex);
4214 spin_lock_irq(&pipe_crc->lock);
4215 entries = pipe_crc->entries;
4216 pipe_crc->entries = NULL;
4219 spin_unlock_irq(&pipe_crc->lock);
4223 if (IS_G4X(dev_priv))
4224 g4x_undo_pipe_scramble_reset(dev_priv, pipe);
4225 else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
4226 vlv_undo_pipe_scramble_reset(dev_priv, pipe);
4227 else if (IS_HASWELL(dev_priv) && pipe == PIPE_A)
4228 hsw_trans_edp_pipe_A_crc_wa(dev_priv, false);
4230 hsw_enable_ips(crtc);
4236 intel_display_power_put(dev_priv, power_domain);
4242 * Parse pipe CRC command strings:
4243 * command: wsp* object wsp+ name wsp+ source wsp*
4246 * source: (none | plane1 | plane2 | pf)
4247 * wsp: (#0x20 | #0x9 | #0xA)+
4250 * "pipe A plane1" -> Start CRC computations on plane1 of pipe A
4251 * "pipe A none" -> Stop CRC
4253 static int display_crc_ctl_tokenize(char *buf, char *words[], int max_words)
4260 /* skip leading white space */
4261 buf = skip_spaces(buf);
4263 break; /* end of buffer */
4265 /* find end of word */
4266 for (end = buf; *end && !isspace(*end); end++)
4269 if (n_words == max_words) {
4270 DRM_DEBUG_DRIVER("too many words, allowed <= %d\n",
4272 return -EINVAL; /* ran out of words[] before bytes */
4277 words[n_words++] = buf;
4284 enum intel_pipe_crc_object {
4285 PIPE_CRC_OBJECT_PIPE,
4288 static const char * const pipe_crc_objects[] = {
4293 display_crc_ctl_parse_object(const char *buf, enum intel_pipe_crc_object *o)
4297 for (i = 0; i < ARRAY_SIZE(pipe_crc_objects); i++)
4298 if (!strcmp(buf, pipe_crc_objects[i])) {
4306 static int display_crc_ctl_parse_pipe(const char *buf, enum pipe *pipe)
4308 const char name = buf[0];
4310 if (name < 'A' || name >= pipe_name(I915_MAX_PIPES))
4319 display_crc_ctl_parse_source(const char *buf, enum intel_pipe_crc_source *s)
4323 for (i = 0; i < ARRAY_SIZE(pipe_crc_sources); i++)
4324 if (!strcmp(buf, pipe_crc_sources[i])) {
4332 static int display_crc_ctl_parse(struct drm_i915_private *dev_priv,
4333 char *buf, size_t len)
4337 char *words[N_WORDS];
4339 enum intel_pipe_crc_object object;
4340 enum intel_pipe_crc_source source;
4342 n_words = display_crc_ctl_tokenize(buf, words, N_WORDS);
4343 if (n_words != N_WORDS) {
4344 DRM_DEBUG_DRIVER("tokenize failed, a command is %d words\n",
4349 if (display_crc_ctl_parse_object(words[0], &object) < 0) {
4350 DRM_DEBUG_DRIVER("unknown object %s\n", words[0]);
4354 if (display_crc_ctl_parse_pipe(words[1], &pipe) < 0) {
4355 DRM_DEBUG_DRIVER("unknown pipe %s\n", words[1]);
4359 if (display_crc_ctl_parse_source(words[2], &source) < 0) {
4360 DRM_DEBUG_DRIVER("unknown source %s\n", words[2]);
4364 return pipe_crc_set_source(dev_priv, pipe, source);
4367 static ssize_t display_crc_ctl_write(struct file *file, const char __user *ubuf,
4368 size_t len, loff_t *offp)
4370 struct seq_file *m = file->private_data;
4371 struct drm_i915_private *dev_priv = m->private;
4378 if (len > PAGE_SIZE - 1) {
4379 DRM_DEBUG_DRIVER("expected <%lu bytes into pipe crc control\n",
4384 tmpbuf = kmalloc(len + 1, GFP_KERNEL);
4388 if (copy_from_user(tmpbuf, ubuf, len)) {
4394 ret = display_crc_ctl_parse(dev_priv, tmpbuf, len);
4405 static const struct file_operations i915_display_crc_ctl_fops = {
4406 .owner = THIS_MODULE,
4407 .open = display_crc_ctl_open,
4409 .llseek = seq_lseek,
4410 .release = single_release,
4411 .write = display_crc_ctl_write
4414 static ssize_t i915_displayport_test_active_write(struct file *file,
4415 const char __user *ubuf,
4416 size_t len, loff_t *offp)
4420 struct drm_device *dev;
4421 struct drm_connector *connector;
4422 struct list_head *connector_list;
4423 struct intel_dp *intel_dp;
4426 dev = ((struct seq_file *)file->private_data)->private;
4428 connector_list = &dev->mode_config.connector_list;
4433 input_buffer = kmalloc(len + 1, GFP_KERNEL);
4437 if (copy_from_user(input_buffer, ubuf, len)) {
4442 input_buffer[len] = '\0';
4443 DRM_DEBUG_DRIVER("Copied %d bytes from user\n", (unsigned int)len);
4445 list_for_each_entry(connector, connector_list, head) {
4446 if (connector->connector_type !=
4447 DRM_MODE_CONNECTOR_DisplayPort)
4450 if (connector->status == connector_status_connected &&
4451 connector->encoder != NULL) {
4452 intel_dp = enc_to_intel_dp(connector->encoder);
4453 status = kstrtoint(input_buffer, 10, &val);
4456 DRM_DEBUG_DRIVER("Got %d for test active\n", val);
4457 /* To prevent erroneous activation of the compliance
4458 * testing code, only accept an actual value of 1 here
4461 intel_dp->compliance_test_active = 1;
4463 intel_dp->compliance_test_active = 0;
4467 kfree(input_buffer);
4475 static int i915_displayport_test_active_show(struct seq_file *m, void *data)
4477 struct drm_device *dev = m->private;
4478 struct drm_connector *connector;
4479 struct list_head *connector_list = &dev->mode_config.connector_list;
4480 struct intel_dp *intel_dp;
4482 list_for_each_entry(connector, connector_list, head) {
4483 if (connector->connector_type !=
4484 DRM_MODE_CONNECTOR_DisplayPort)
4487 if (connector->status == connector_status_connected &&
4488 connector->encoder != NULL) {
4489 intel_dp = enc_to_intel_dp(connector->encoder);
4490 if (intel_dp->compliance_test_active)
4501 static int i915_displayport_test_active_open(struct inode *inode,
4504 struct drm_i915_private *dev_priv = inode->i_private;
4506 return single_open(file, i915_displayport_test_active_show,
4510 static const struct file_operations i915_displayport_test_active_fops = {
4511 .owner = THIS_MODULE,
4512 .open = i915_displayport_test_active_open,
4514 .llseek = seq_lseek,
4515 .release = single_release,
4516 .write = i915_displayport_test_active_write
4519 static int i915_displayport_test_data_show(struct seq_file *m, void *data)
4521 struct drm_device *dev = m->private;
4522 struct drm_connector *connector;
4523 struct list_head *connector_list = &dev->mode_config.connector_list;
4524 struct intel_dp *intel_dp;
4526 list_for_each_entry(connector, connector_list, head) {
4527 if (connector->connector_type !=
4528 DRM_MODE_CONNECTOR_DisplayPort)
4531 if (connector->status == connector_status_connected &&
4532 connector->encoder != NULL) {
4533 intel_dp = enc_to_intel_dp(connector->encoder);
4534 seq_printf(m, "%lx", intel_dp->compliance_test_data);
4541 static int i915_displayport_test_data_open(struct inode *inode,
4544 struct drm_i915_private *dev_priv = inode->i_private;
4546 return single_open(file, i915_displayport_test_data_show,
4550 static const struct file_operations i915_displayport_test_data_fops = {
4551 .owner = THIS_MODULE,
4552 .open = i915_displayport_test_data_open,
4554 .llseek = seq_lseek,
4555 .release = single_release
4558 static int i915_displayport_test_type_show(struct seq_file *m, void *data)
4560 struct drm_device *dev = m->private;
4561 struct drm_connector *connector;
4562 struct list_head *connector_list = &dev->mode_config.connector_list;
4563 struct intel_dp *intel_dp;
4565 list_for_each_entry(connector, connector_list, head) {
4566 if (connector->connector_type !=
4567 DRM_MODE_CONNECTOR_DisplayPort)
4570 if (connector->status == connector_status_connected &&
4571 connector->encoder != NULL) {
4572 intel_dp = enc_to_intel_dp(connector->encoder);
4573 seq_printf(m, "%02lx", intel_dp->compliance_test_type);
4581 static int i915_displayport_test_type_open(struct inode *inode,
4584 struct drm_i915_private *dev_priv = inode->i_private;
4586 return single_open(file, i915_displayport_test_type_show,
4590 static const struct file_operations i915_displayport_test_type_fops = {
4591 .owner = THIS_MODULE,
4592 .open = i915_displayport_test_type_open,
4594 .llseek = seq_lseek,
4595 .release = single_release
4598 static void wm_latency_show(struct seq_file *m, const uint16_t wm[8])
4600 struct drm_i915_private *dev_priv = m->private;
4601 struct drm_device *dev = &dev_priv->drm;
4605 if (IS_CHERRYVIEW(dev_priv))
4607 else if (IS_VALLEYVIEW(dev_priv))
4610 num_levels = ilk_wm_max_level(dev_priv) + 1;
4612 drm_modeset_lock_all(dev);
4614 for (level = 0; level < num_levels; level++) {
4615 unsigned int latency = wm[level];
4618 * - WM1+ latency values in 0.5us units
4619 * - latencies are in us on gen9/vlv/chv
4621 if (INTEL_GEN(dev_priv) >= 9 || IS_VALLEYVIEW(dev_priv) ||
4622 IS_CHERRYVIEW(dev_priv))
4627 seq_printf(m, "WM%d %u (%u.%u usec)\n",
4628 level, wm[level], latency / 10, latency % 10);
4631 drm_modeset_unlock_all(dev);
4634 static int pri_wm_latency_show(struct seq_file *m, void *data)
4636 struct drm_i915_private *dev_priv = m->private;
4637 const uint16_t *latencies;
4639 if (INTEL_GEN(dev_priv) >= 9)
4640 latencies = dev_priv->wm.skl_latency;
4642 latencies = dev_priv->wm.pri_latency;
4644 wm_latency_show(m, latencies);
4649 static int spr_wm_latency_show(struct seq_file *m, void *data)
4651 struct drm_i915_private *dev_priv = m->private;
4652 const uint16_t *latencies;
4654 if (INTEL_GEN(dev_priv) >= 9)
4655 latencies = dev_priv->wm.skl_latency;
4657 latencies = dev_priv->wm.spr_latency;
4659 wm_latency_show(m, latencies);
4664 static int cur_wm_latency_show(struct seq_file *m, void *data)
4666 struct drm_i915_private *dev_priv = m->private;
4667 const uint16_t *latencies;
4669 if (INTEL_GEN(dev_priv) >= 9)
4670 latencies = dev_priv->wm.skl_latency;
4672 latencies = dev_priv->wm.cur_latency;
4674 wm_latency_show(m, latencies);
4679 static int pri_wm_latency_open(struct inode *inode, struct file *file)
4681 struct drm_i915_private *dev_priv = inode->i_private;
4683 if (INTEL_GEN(dev_priv) < 5)
4686 return single_open(file, pri_wm_latency_show, dev_priv);
4689 static int spr_wm_latency_open(struct inode *inode, struct file *file)
4691 struct drm_i915_private *dev_priv = inode->i_private;
4693 if (HAS_GMCH_DISPLAY(dev_priv))
4696 return single_open(file, spr_wm_latency_show, dev_priv);
4699 static int cur_wm_latency_open(struct inode *inode, struct file *file)
4701 struct drm_i915_private *dev_priv = inode->i_private;
4703 if (HAS_GMCH_DISPLAY(dev_priv))
4706 return single_open(file, cur_wm_latency_show, dev_priv);
4709 static ssize_t wm_latency_write(struct file *file, const char __user *ubuf,
4710 size_t len, loff_t *offp, uint16_t wm[8])
4712 struct seq_file *m = file->private_data;
4713 struct drm_i915_private *dev_priv = m->private;
4714 struct drm_device *dev = &dev_priv->drm;
4715 uint16_t new[8] = { 0 };
4721 if (IS_CHERRYVIEW(dev_priv))
4723 else if (IS_VALLEYVIEW(dev_priv))
4726 num_levels = ilk_wm_max_level(dev_priv) + 1;
4728 if (len >= sizeof(tmp))
4731 if (copy_from_user(tmp, ubuf, len))
4736 ret = sscanf(tmp, "%hu %hu %hu %hu %hu %hu %hu %hu",
4737 &new[0], &new[1], &new[2], &new[3],
4738 &new[4], &new[5], &new[6], &new[7]);
4739 if (ret != num_levels)
4742 drm_modeset_lock_all(dev);
4744 for (level = 0; level < num_levels; level++)
4745 wm[level] = new[level];
4747 drm_modeset_unlock_all(dev);
4753 static ssize_t pri_wm_latency_write(struct file *file, const char __user *ubuf,
4754 size_t len, loff_t *offp)
4756 struct seq_file *m = file->private_data;
4757 struct drm_i915_private *dev_priv = m->private;
4758 uint16_t *latencies;
4760 if (INTEL_GEN(dev_priv) >= 9)
4761 latencies = dev_priv->wm.skl_latency;
4763 latencies = dev_priv->wm.pri_latency;
4765 return wm_latency_write(file, ubuf, len, offp, latencies);
4768 static ssize_t spr_wm_latency_write(struct file *file, const char __user *ubuf,
4769 size_t len, loff_t *offp)
4771 struct seq_file *m = file->private_data;
4772 struct drm_i915_private *dev_priv = m->private;
4773 uint16_t *latencies;
4775 if (INTEL_GEN(dev_priv) >= 9)
4776 latencies = dev_priv->wm.skl_latency;
4778 latencies = dev_priv->wm.spr_latency;
4780 return wm_latency_write(file, ubuf, len, offp, latencies);
4783 static ssize_t cur_wm_latency_write(struct file *file, const char __user *ubuf,
4784 size_t len, loff_t *offp)
4786 struct seq_file *m = file->private_data;
4787 struct drm_i915_private *dev_priv = m->private;
4788 uint16_t *latencies;
4790 if (INTEL_GEN(dev_priv) >= 9)
4791 latencies = dev_priv->wm.skl_latency;
4793 latencies = dev_priv->wm.cur_latency;
4795 return wm_latency_write(file, ubuf, len, offp, latencies);
4798 static const struct file_operations i915_pri_wm_latency_fops = {
4799 .owner = THIS_MODULE,
4800 .open = pri_wm_latency_open,
4802 .llseek = seq_lseek,
4803 .release = single_release,
4804 .write = pri_wm_latency_write
4807 static const struct file_operations i915_spr_wm_latency_fops = {
4808 .owner = THIS_MODULE,
4809 .open = spr_wm_latency_open,
4811 .llseek = seq_lseek,
4812 .release = single_release,
4813 .write = spr_wm_latency_write
4816 static const struct file_operations i915_cur_wm_latency_fops = {
4817 .owner = THIS_MODULE,
4818 .open = cur_wm_latency_open,
4820 .llseek = seq_lseek,
4821 .release = single_release,
4822 .write = cur_wm_latency_write
4826 i915_wedged_get(void *data, u64 *val)
4828 struct drm_i915_private *dev_priv = data;
4830 *val = i915_terminally_wedged(&dev_priv->gpu_error);
4836 i915_wedged_set(void *data, u64 val)
4838 struct drm_i915_private *dev_priv = data;
4841 * There is no safeguard against this debugfs entry colliding
4842 * with the hangcheck calling same i915_handle_error() in
4843 * parallel, causing an explosion. For now we assume that the
4844 * test harness is responsible enough not to inject gpu hangs
4845 * while it is writing to 'i915_wedged'
4848 if (i915_reset_in_progress(&dev_priv->gpu_error))
4851 i915_handle_error(dev_priv, val,
4852 "Manually setting wedged to %llu", val);
4857 DEFINE_SIMPLE_ATTRIBUTE(i915_wedged_fops,
4858 i915_wedged_get, i915_wedged_set,
4862 i915_ring_missed_irq_get(void *data, u64 *val)
4864 struct drm_i915_private *dev_priv = data;
4866 *val = dev_priv->gpu_error.missed_irq_rings;
4871 i915_ring_missed_irq_set(void *data, u64 val)
4873 struct drm_i915_private *dev_priv = data;
4874 struct drm_device *dev = &dev_priv->drm;
4877 /* Lock against concurrent debugfs callers */
4878 ret = mutex_lock_interruptible(&dev->struct_mutex);
4881 dev_priv->gpu_error.missed_irq_rings = val;
4882 mutex_unlock(&dev->struct_mutex);
4887 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_missed_irq_fops,
4888 i915_ring_missed_irq_get, i915_ring_missed_irq_set,
4892 i915_ring_test_irq_get(void *data, u64 *val)
4894 struct drm_i915_private *dev_priv = data;
4896 *val = dev_priv->gpu_error.test_irq_rings;
4902 i915_ring_test_irq_set(void *data, u64 val)
4904 struct drm_i915_private *dev_priv = data;
4906 val &= INTEL_INFO(dev_priv)->ring_mask;
4907 DRM_DEBUG_DRIVER("Masking interrupts on rings 0x%08llx\n", val);
4908 dev_priv->gpu_error.test_irq_rings = val;
4913 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_test_irq_fops,
4914 i915_ring_test_irq_get, i915_ring_test_irq_set,
4917 #define DROP_UNBOUND 0x1
4918 #define DROP_BOUND 0x2
4919 #define DROP_RETIRE 0x4
4920 #define DROP_ACTIVE 0x8
4921 #define DROP_ALL (DROP_UNBOUND | \
4926 i915_drop_caches_get(void *data, u64 *val)
4934 i915_drop_caches_set(void *data, u64 val)
4936 struct drm_i915_private *dev_priv = data;
4937 struct drm_device *dev = &dev_priv->drm;
4940 DRM_DEBUG("Dropping caches: 0x%08llx\n", val);
4942 /* No need to check and wait for gpu resets, only libdrm auto-restarts
4943 * on ioctls on -EAGAIN. */
4944 ret = mutex_lock_interruptible(&dev->struct_mutex);
4948 if (val & DROP_ACTIVE) {
4949 ret = i915_gem_wait_for_idle(dev_priv,
4950 I915_WAIT_INTERRUPTIBLE |
4956 if (val & (DROP_RETIRE | DROP_ACTIVE))
4957 i915_gem_retire_requests(dev_priv);
4959 if (val & DROP_BOUND)
4960 i915_gem_shrink(dev_priv, LONG_MAX, I915_SHRINK_BOUND);
4962 if (val & DROP_UNBOUND)
4963 i915_gem_shrink(dev_priv, LONG_MAX, I915_SHRINK_UNBOUND);
4966 mutex_unlock(&dev->struct_mutex);
4971 DEFINE_SIMPLE_ATTRIBUTE(i915_drop_caches_fops,
4972 i915_drop_caches_get, i915_drop_caches_set,
4976 i915_max_freq_get(void *data, u64 *val)
4978 struct drm_i915_private *dev_priv = data;
4980 if (INTEL_GEN(dev_priv) < 6)
4983 *val = intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit);
4988 i915_max_freq_set(void *data, u64 val)
4990 struct drm_i915_private *dev_priv = data;
4994 if (INTEL_GEN(dev_priv) < 6)
4997 DRM_DEBUG_DRIVER("Manually setting max freq to %llu\n", val);
4999 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
5004 * Turbo will still be enabled, but won't go above the set value.
5006 val = intel_freq_opcode(dev_priv, val);
5008 hw_max = dev_priv->rps.max_freq;
5009 hw_min = dev_priv->rps.min_freq;
5011 if (val < hw_min || val > hw_max || val < dev_priv->rps.min_freq_softlimit) {
5012 mutex_unlock(&dev_priv->rps.hw_lock);
5016 dev_priv->rps.max_freq_softlimit = val;
5018 intel_set_rps(dev_priv, val);
5020 mutex_unlock(&dev_priv->rps.hw_lock);
5025 DEFINE_SIMPLE_ATTRIBUTE(i915_max_freq_fops,
5026 i915_max_freq_get, i915_max_freq_set,
5030 i915_min_freq_get(void *data, u64 *val)
5032 struct drm_i915_private *dev_priv = data;
5034 if (INTEL_GEN(dev_priv) < 6)
5037 *val = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit);
5042 i915_min_freq_set(void *data, u64 val)
5044 struct drm_i915_private *dev_priv = data;
5048 if (INTEL_GEN(dev_priv) < 6)
5051 DRM_DEBUG_DRIVER("Manually setting min freq to %llu\n", val);
5053 ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
5058 * Turbo will still be enabled, but won't go below the set value.
5060 val = intel_freq_opcode(dev_priv, val);
5062 hw_max = dev_priv->rps.max_freq;
5063 hw_min = dev_priv->rps.min_freq;
5066 val > hw_max || val > dev_priv->rps.max_freq_softlimit) {
5067 mutex_unlock(&dev_priv->rps.hw_lock);
5071 dev_priv->rps.min_freq_softlimit = val;
5073 intel_set_rps(dev_priv, val);
5075 mutex_unlock(&dev_priv->rps.hw_lock);
5080 DEFINE_SIMPLE_ATTRIBUTE(i915_min_freq_fops,
5081 i915_min_freq_get, i915_min_freq_set,
5085 i915_cache_sharing_get(void *data, u64 *val)
5087 struct drm_i915_private *dev_priv = data;
5090 if (!(IS_GEN6(dev_priv) || IS_GEN7(dev_priv)))
5093 intel_runtime_pm_get(dev_priv);
5095 snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
5097 intel_runtime_pm_put(dev_priv);
5099 *val = (snpcr & GEN6_MBC_SNPCR_MASK) >> GEN6_MBC_SNPCR_SHIFT;
5105 i915_cache_sharing_set(void *data, u64 val)
5107 struct drm_i915_private *dev_priv = data;
5110 if (!(IS_GEN6(dev_priv) || IS_GEN7(dev_priv)))
5116 intel_runtime_pm_get(dev_priv);
5117 DRM_DEBUG_DRIVER("Manually setting uncore sharing to %llu\n", val);
5119 /* Update the cache sharing policy here as well */
5120 snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
5121 snpcr &= ~GEN6_MBC_SNPCR_MASK;
5122 snpcr |= (val << GEN6_MBC_SNPCR_SHIFT);
5123 I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr);
5125 intel_runtime_pm_put(dev_priv);
5129 DEFINE_SIMPLE_ATTRIBUTE(i915_cache_sharing_fops,
5130 i915_cache_sharing_get, i915_cache_sharing_set,
5133 static void cherryview_sseu_device_status(struct drm_i915_private *dev_priv,
5134 struct sseu_dev_info *sseu)
5138 u32 sig1[ss_max], sig2[ss_max];
5140 sig1[0] = I915_READ(CHV_POWER_SS0_SIG1);
5141 sig1[1] = I915_READ(CHV_POWER_SS1_SIG1);
5142 sig2[0] = I915_READ(CHV_POWER_SS0_SIG2);
5143 sig2[1] = I915_READ(CHV_POWER_SS1_SIG2);
5145 for (ss = 0; ss < ss_max; ss++) {
5146 unsigned int eu_cnt;
5148 if (sig1[ss] & CHV_SS_PG_ENABLE)
5149 /* skip disabled subslice */
5152 sseu->slice_mask = BIT(0);
5153 sseu->subslice_mask |= BIT(ss);
5154 eu_cnt = ((sig1[ss] & CHV_EU08_PG_ENABLE) ? 0 : 2) +
5155 ((sig1[ss] & CHV_EU19_PG_ENABLE) ? 0 : 2) +
5156 ((sig1[ss] & CHV_EU210_PG_ENABLE) ? 0 : 2) +
5157 ((sig2[ss] & CHV_EU311_PG_ENABLE) ? 0 : 2);
5158 sseu->eu_total += eu_cnt;
5159 sseu->eu_per_subslice = max_t(unsigned int,
5160 sseu->eu_per_subslice, eu_cnt);
5164 static void gen9_sseu_device_status(struct drm_i915_private *dev_priv,
5165 struct sseu_dev_info *sseu)
5167 int s_max = 3, ss_max = 4;
5169 u32 s_reg[s_max], eu_reg[2*s_max], eu_mask[2];
5171 /* BXT has a single slice and at most 3 subslices. */
5172 if (IS_BROXTON(dev_priv)) {
5177 for (s = 0; s < s_max; s++) {
5178 s_reg[s] = I915_READ(GEN9_SLICE_PGCTL_ACK(s));
5179 eu_reg[2*s] = I915_READ(GEN9_SS01_EU_PGCTL_ACK(s));
5180 eu_reg[2*s + 1] = I915_READ(GEN9_SS23_EU_PGCTL_ACK(s));
5183 eu_mask[0] = GEN9_PGCTL_SSA_EU08_ACK |
5184 GEN9_PGCTL_SSA_EU19_ACK |
5185 GEN9_PGCTL_SSA_EU210_ACK |
5186 GEN9_PGCTL_SSA_EU311_ACK;
5187 eu_mask[1] = GEN9_PGCTL_SSB_EU08_ACK |
5188 GEN9_PGCTL_SSB_EU19_ACK |
5189 GEN9_PGCTL_SSB_EU210_ACK |
5190 GEN9_PGCTL_SSB_EU311_ACK;
5192 for (s = 0; s < s_max; s++) {
5193 if ((s_reg[s] & GEN9_PGCTL_SLICE_ACK) == 0)
5194 /* skip disabled slice */
5197 sseu->slice_mask |= BIT(s);
5199 if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv))
5200 sseu->subslice_mask =
5201 INTEL_INFO(dev_priv)->sseu.subslice_mask;
5203 for (ss = 0; ss < ss_max; ss++) {
5204 unsigned int eu_cnt;
5206 if (IS_BROXTON(dev_priv)) {
5207 if (!(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss))))
5208 /* skip disabled subslice */
5211 sseu->subslice_mask |= BIT(ss);
5214 eu_cnt = 2 * hweight32(eu_reg[2*s + ss/2] &
5216 sseu->eu_total += eu_cnt;
5217 sseu->eu_per_subslice = max_t(unsigned int,
5218 sseu->eu_per_subslice,
5224 static void broadwell_sseu_device_status(struct drm_i915_private *dev_priv,
5225 struct sseu_dev_info *sseu)
5227 u32 slice_info = I915_READ(GEN8_GT_SLICE_INFO);
5230 sseu->slice_mask = slice_info & GEN8_LSLICESTAT_MASK;
5232 if (sseu->slice_mask) {
5233 sseu->subslice_mask = INTEL_INFO(dev_priv)->sseu.subslice_mask;
5234 sseu->eu_per_subslice =
5235 INTEL_INFO(dev_priv)->sseu.eu_per_subslice;
5236 sseu->eu_total = sseu->eu_per_subslice *
5237 sseu_subslice_total(sseu);
5239 /* subtract fused off EU(s) from enabled slice(s) */
5240 for (s = 0; s < fls(sseu->slice_mask); s++) {
5242 INTEL_INFO(dev_priv)->sseu.subslice_7eu[s];
5244 sseu->eu_total -= hweight8(subslice_7eu);
5249 static void i915_print_sseu_info(struct seq_file *m, bool is_available_info,
5250 const struct sseu_dev_info *sseu)
5252 struct drm_i915_private *dev_priv = node_to_i915(m->private);
5253 const char *type = is_available_info ? "Available" : "Enabled";
5255 seq_printf(m, " %s Slice Mask: %04x\n", type,
5257 seq_printf(m, " %s Slice Total: %u\n", type,
5258 hweight8(sseu->slice_mask));
5259 seq_printf(m, " %s Subslice Total: %u\n", type,
5260 sseu_subslice_total(sseu));
5261 seq_printf(m, " %s Subslice Mask: %04x\n", type,
5262 sseu->subslice_mask);
5263 seq_printf(m, " %s Subslice Per Slice: %u\n", type,
5264 hweight8(sseu->subslice_mask));
5265 seq_printf(m, " %s EU Total: %u\n", type,
5267 seq_printf(m, " %s EU Per Subslice: %u\n", type,
5268 sseu->eu_per_subslice);
5270 if (!is_available_info)
5273 seq_printf(m, " Has Pooled EU: %s\n", yesno(HAS_POOLED_EU(dev_priv)));
5274 if (HAS_POOLED_EU(dev_priv))
5275 seq_printf(m, " Min EU in pool: %u\n", sseu->min_eu_in_pool);
5277 seq_printf(m, " Has Slice Power Gating: %s\n",
5278 yesno(sseu->has_slice_pg));
5279 seq_printf(m, " Has Subslice Power Gating: %s\n",
5280 yesno(sseu->has_subslice_pg));
5281 seq_printf(m, " Has EU Power Gating: %s\n",
5282 yesno(sseu->has_eu_pg));
5285 static int i915_sseu_status(struct seq_file *m, void *unused)
5287 struct drm_i915_private *dev_priv = node_to_i915(m->private);
5288 struct sseu_dev_info sseu;
5290 if (INTEL_GEN(dev_priv) < 8)
5293 seq_puts(m, "SSEU Device Info\n");
5294 i915_print_sseu_info(m, true, &INTEL_INFO(dev_priv)->sseu);
5296 seq_puts(m, "SSEU Device Status\n");
5297 memset(&sseu, 0, sizeof(sseu));
5299 intel_runtime_pm_get(dev_priv);
5301 if (IS_CHERRYVIEW(dev_priv)) {
5302 cherryview_sseu_device_status(dev_priv, &sseu);
5303 } else if (IS_BROADWELL(dev_priv)) {
5304 broadwell_sseu_device_status(dev_priv, &sseu);
5305 } else if (INTEL_GEN(dev_priv) >= 9) {
5306 gen9_sseu_device_status(dev_priv, &sseu);
5309 intel_runtime_pm_put(dev_priv);
5311 i915_print_sseu_info(m, false, &sseu);
5316 static int i915_forcewake_open(struct inode *inode, struct file *file)
5318 struct drm_i915_private *dev_priv = inode->i_private;
5320 if (INTEL_GEN(dev_priv) < 6)
5323 intel_runtime_pm_get(dev_priv);
5324 intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
5329 static int i915_forcewake_release(struct inode *inode, struct file *file)
5331 struct drm_i915_private *dev_priv = inode->i_private;
5333 if (INTEL_GEN(dev_priv) < 6)
5336 intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
5337 intel_runtime_pm_put(dev_priv);
5342 static const struct file_operations i915_forcewake_fops = {
5343 .owner = THIS_MODULE,
5344 .open = i915_forcewake_open,
5345 .release = i915_forcewake_release,
5348 static int i915_forcewake_create(struct dentry *root, struct drm_minor *minor)
5352 ent = debugfs_create_file("i915_forcewake_user",
5354 root, to_i915(minor->dev),
5355 &i915_forcewake_fops);
5359 return drm_add_fake_info_node(minor, ent, &i915_forcewake_fops);
5362 static int i915_debugfs_create(struct dentry *root,
5363 struct drm_minor *minor,
5365 const struct file_operations *fops)
5369 ent = debugfs_create_file(name,
5371 root, to_i915(minor->dev),
5376 return drm_add_fake_info_node(minor, ent, fops);
5379 static const struct drm_info_list i915_debugfs_list[] = {
5380 {"i915_capabilities", i915_capabilities, 0},
5381 {"i915_gem_objects", i915_gem_object_info, 0},
5382 {"i915_gem_gtt", i915_gem_gtt_info, 0},
5383 {"i915_gem_pin_display", i915_gem_gtt_info, 0, (void *)1},
5384 {"i915_gem_stolen", i915_gem_stolen_list_info },
5385 {"i915_gem_pageflip", i915_gem_pageflip_info, 0},
5386 {"i915_gem_request", i915_gem_request_info, 0},
5387 {"i915_gem_seqno", i915_gem_seqno_info, 0},
5388 {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
5389 {"i915_gem_interrupt", i915_interrupt_info, 0},
5390 {"i915_gem_hws", i915_hws_info, 0, (void *)RCS},
5391 {"i915_gem_hws_blt", i915_hws_info, 0, (void *)BCS},
5392 {"i915_gem_hws_bsd", i915_hws_info, 0, (void *)VCS},
5393 {"i915_gem_hws_vebox", i915_hws_info, 0, (void *)VECS},
5394 {"i915_gem_batch_pool", i915_gem_batch_pool_info, 0},
5395 {"i915_guc_info", i915_guc_info, 0},
5396 {"i915_guc_load_status", i915_guc_load_status_info, 0},
5397 {"i915_guc_log_dump", i915_guc_log_dump, 0},
5398 {"i915_frequency_info", i915_frequency_info, 0},
5399 {"i915_hangcheck_info", i915_hangcheck_info, 0},
5400 {"i915_drpc_info", i915_drpc_info, 0},
5401 {"i915_emon_status", i915_emon_status, 0},
5402 {"i915_ring_freq_table", i915_ring_freq_table, 0},
5403 {"i915_frontbuffer_tracking", i915_frontbuffer_tracking, 0},
5404 {"i915_fbc_status", i915_fbc_status, 0},
5405 {"i915_ips_status", i915_ips_status, 0},
5406 {"i915_sr_status", i915_sr_status, 0},
5407 {"i915_opregion", i915_opregion, 0},
5408 {"i915_vbt", i915_vbt, 0},
5409 {"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
5410 {"i915_context_status", i915_context_status, 0},
5411 {"i915_dump_lrc", i915_dump_lrc, 0},
5412 {"i915_forcewake_domains", i915_forcewake_domains, 0},
5413 {"i915_swizzle_info", i915_swizzle_info, 0},
5414 {"i915_ppgtt_info", i915_ppgtt_info, 0},
5415 {"i915_llc", i915_llc, 0},
5416 {"i915_edp_psr_status", i915_edp_psr_status, 0},
5417 {"i915_sink_crc_eDP1", i915_sink_crc, 0},
5418 {"i915_energy_uJ", i915_energy_uJ, 0},
5419 {"i915_runtime_pm_status", i915_runtime_pm_status, 0},
5420 {"i915_power_domain_info", i915_power_domain_info, 0},
5421 {"i915_dmc_info", i915_dmc_info, 0},
5422 {"i915_display_info", i915_display_info, 0},
5423 {"i915_engine_info", i915_engine_info, 0},
5424 {"i915_semaphore_status", i915_semaphore_status, 0},
5425 {"i915_shared_dplls_info", i915_shared_dplls_info, 0},
5426 {"i915_dp_mst_info", i915_dp_mst_info, 0},
5427 {"i915_wa_registers", i915_wa_registers, 0},
5428 {"i915_ddb_info", i915_ddb_info, 0},
5429 {"i915_sseu_status", i915_sseu_status, 0},
5430 {"i915_drrs_status", i915_drrs_status, 0},
5431 {"i915_rps_boost_info", i915_rps_boost_info, 0},
5433 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
5435 static const struct i915_debugfs_files {
5437 const struct file_operations *fops;
5438 } i915_debugfs_files[] = {
5439 {"i915_wedged", &i915_wedged_fops},
5440 {"i915_max_freq", &i915_max_freq_fops},
5441 {"i915_min_freq", &i915_min_freq_fops},
5442 {"i915_cache_sharing", &i915_cache_sharing_fops},
5443 {"i915_ring_missed_irq", &i915_ring_missed_irq_fops},
5444 {"i915_ring_test_irq", &i915_ring_test_irq_fops},
5445 {"i915_gem_drop_caches", &i915_drop_caches_fops},
5446 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
5447 {"i915_error_state", &i915_error_state_fops},
5449 {"i915_next_seqno", &i915_next_seqno_fops},
5450 {"i915_display_crc_ctl", &i915_display_crc_ctl_fops},
5451 {"i915_pri_wm_latency", &i915_pri_wm_latency_fops},
5452 {"i915_spr_wm_latency", &i915_spr_wm_latency_fops},
5453 {"i915_cur_wm_latency", &i915_cur_wm_latency_fops},
5454 {"i915_fbc_false_color", &i915_fbc_fc_fops},
5455 {"i915_dp_test_data", &i915_displayport_test_data_fops},
5456 {"i915_dp_test_type", &i915_displayport_test_type_fops},
5457 {"i915_dp_test_active", &i915_displayport_test_active_fops}
5460 void intel_display_crc_init(struct drm_i915_private *dev_priv)
5464 for_each_pipe(dev_priv, pipe) {
5465 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];
5467 pipe_crc->opened = false;
5468 spin_lock_init(&pipe_crc->lock);
5469 init_waitqueue_head(&pipe_crc->wq);
5473 int i915_debugfs_register(struct drm_i915_private *dev_priv)
5475 struct drm_minor *minor = dev_priv->drm.primary;
5478 ret = i915_forcewake_create(minor->debugfs_root, minor);
5482 for (i = 0; i < ARRAY_SIZE(i915_pipe_crc_data); i++) {
5483 ret = i915_pipe_crc_create(minor->debugfs_root, minor, i);
5488 for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
5489 ret = i915_debugfs_create(minor->debugfs_root, minor,
5490 i915_debugfs_files[i].name,
5491 i915_debugfs_files[i].fops);
5496 return drm_debugfs_create_files(i915_debugfs_list,
5497 I915_DEBUGFS_ENTRIES,
5498 minor->debugfs_root, minor);
5501 void i915_debugfs_unregister(struct drm_i915_private *dev_priv)
5503 struct drm_minor *minor = dev_priv->drm.primary;
5506 drm_debugfs_remove_files(i915_debugfs_list,
5507 I915_DEBUGFS_ENTRIES, minor);
5509 drm_debugfs_remove_files((struct drm_info_list *)&i915_forcewake_fops,
5512 for (i = 0; i < ARRAY_SIZE(i915_pipe_crc_data); i++) {
5513 struct drm_info_list *info_list =
5514 (struct drm_info_list *)&i915_pipe_crc_data[i];
5516 drm_debugfs_remove_files(info_list, 1, minor);
5519 for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
5520 struct drm_info_list *info_list =
5521 (struct drm_info_list *)i915_debugfs_files[i].fops;
5523 drm_debugfs_remove_files(info_list, 1, minor);
5528 /* DPCD dump start address. */
5529 unsigned int offset;
5530 /* DPCD dump end address, inclusive. If unset, .size will be used. */
5532 /* DPCD dump size. Used if .end is unset. If unset, defaults to 1. */
5534 /* Only valid for eDP. */
5538 static const struct dpcd_block i915_dpcd_debug[] = {
5539 { .offset = DP_DPCD_REV, .size = DP_RECEIVER_CAP_SIZE },
5540 { .offset = DP_PSR_SUPPORT, .end = DP_PSR_CAPS },
5541 { .offset = DP_DOWNSTREAM_PORT_0, .size = 16 },
5542 { .offset = DP_LINK_BW_SET, .end = DP_EDP_CONFIGURATION_SET },
5543 { .offset = DP_SINK_COUNT, .end = DP_ADJUST_REQUEST_LANE2_3 },
5544 { .offset = DP_SET_POWER },
5545 { .offset = DP_EDP_DPCD_REV },
5546 { .offset = DP_EDP_GENERAL_CAP_1, .end = DP_EDP_GENERAL_CAP_3 },
5547 { .offset = DP_EDP_DISPLAY_CONTROL_REGISTER, .end = DP_EDP_BACKLIGHT_FREQ_CAP_MAX_LSB },
5548 { .offset = DP_EDP_DBC_MINIMUM_BRIGHTNESS_SET, .end = DP_EDP_DBC_MAXIMUM_BRIGHTNESS_SET },
5551 static int i915_dpcd_show(struct seq_file *m, void *data)
5553 struct drm_connector *connector = m->private;
5554 struct intel_dp *intel_dp =
5555 enc_to_intel_dp(&intel_attached_encoder(connector)->base);
5560 if (connector->status != connector_status_connected)
5563 for (i = 0; i < ARRAY_SIZE(i915_dpcd_debug); i++) {
5564 const struct dpcd_block *b = &i915_dpcd_debug[i];
5565 size_t size = b->end ? b->end - b->offset + 1 : (b->size ?: 1);
5568 connector->connector_type != DRM_MODE_CONNECTOR_eDP)
5571 /* low tech for now */
5572 if (WARN_ON(size > sizeof(buf)))
5575 err = drm_dp_dpcd_read(&intel_dp->aux, b->offset, buf, size);
5577 DRM_ERROR("dpcd read (%zu bytes at %u) failed (%zd)\n",
5578 size, b->offset, err);
5582 seq_printf(m, "%04x: %*ph\n", b->offset, (int) size, buf);
5588 static int i915_dpcd_open(struct inode *inode, struct file *file)
5590 return single_open(file, i915_dpcd_show, inode->i_private);
5593 static const struct file_operations i915_dpcd_fops = {
5594 .owner = THIS_MODULE,
5595 .open = i915_dpcd_open,
5597 .llseek = seq_lseek,
5598 .release = single_release,
5601 static int i915_panel_show(struct seq_file *m, void *data)
5603 struct drm_connector *connector = m->private;
5604 struct intel_dp *intel_dp =
5605 enc_to_intel_dp(&intel_attached_encoder(connector)->base);
5607 if (connector->status != connector_status_connected)
5610 seq_printf(m, "Panel power up delay: %d\n",
5611 intel_dp->panel_power_up_delay);
5612 seq_printf(m, "Panel power down delay: %d\n",
5613 intel_dp->panel_power_down_delay);
5614 seq_printf(m, "Backlight on delay: %d\n",
5615 intel_dp->backlight_on_delay);
5616 seq_printf(m, "Backlight off delay: %d\n",
5617 intel_dp->backlight_off_delay);
5622 static int i915_panel_open(struct inode *inode, struct file *file)
5624 return single_open(file, i915_panel_show, inode->i_private);
5627 static const struct file_operations i915_panel_fops = {
5628 .owner = THIS_MODULE,
5629 .open = i915_panel_open,
5631 .llseek = seq_lseek,
5632 .release = single_release,
5636 * i915_debugfs_connector_add - add i915 specific connector debugfs files
5637 * @connector: pointer to a registered drm_connector
5639 * Cleanup will be done by drm_connector_unregister() through a call to
5640 * drm_debugfs_connector_remove().
5642 * Returns 0 on success, negative error codes on error.
5644 int i915_debugfs_connector_add(struct drm_connector *connector)
5646 struct dentry *root = connector->debugfs_entry;
5648 /* The connector must have been registered beforehands. */
5652 if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
5653 connector->connector_type == DRM_MODE_CONNECTOR_eDP)
5654 debugfs_create_file("i915_dpcd", S_IRUGO, root,
5655 connector, &i915_dpcd_fops);
5657 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP)
5658 debugfs_create_file("i915_panel_timings", S_IRUGO, root,
5659 connector, &i915_panel_fops);