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/sort.h>
30 #include <linux/sched/mm.h>
31 #include <drm/drm_debugfs.h>
32 #include <drm/drm_fourcc.h>
33 #include "intel_drv.h"
34 #include "intel_guc_submission.h"
36 #include "i915_reset.h"
38 static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node)
40 return to_i915(node->minor->dev);
43 static int i915_capabilities(struct seq_file *m, void *data)
45 struct drm_i915_private *dev_priv = node_to_i915(m->private);
46 const struct intel_device_info *info = INTEL_INFO(dev_priv);
47 struct drm_printer p = drm_seq_file_printer(m);
49 seq_printf(m, "gen: %d\n", INTEL_GEN(dev_priv));
50 seq_printf(m, "platform: %s\n", intel_platform_name(info->platform));
51 seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev_priv));
53 intel_device_info_dump_flags(info, &p);
54 intel_device_info_dump_runtime(RUNTIME_INFO(dev_priv), &p);
55 intel_driver_caps_print(&dev_priv->caps, &p);
57 kernel_param_lock(THIS_MODULE);
58 i915_params_dump(&i915_modparams, &p);
59 kernel_param_unlock(THIS_MODULE);
64 static char get_active_flag(struct drm_i915_gem_object *obj)
66 return i915_gem_object_is_active(obj) ? '*' : ' ';
69 static char get_pin_flag(struct drm_i915_gem_object *obj)
71 return obj->pin_global ? 'p' : ' ';
74 static char get_tiling_flag(struct drm_i915_gem_object *obj)
76 switch (i915_gem_object_get_tiling(obj)) {
78 case I915_TILING_NONE: return ' ';
79 case I915_TILING_X: return 'X';
80 case I915_TILING_Y: return 'Y';
84 static char get_global_flag(struct drm_i915_gem_object *obj)
86 return obj->userfault_count ? 'g' : ' ';
89 static char get_pin_mapped_flag(struct drm_i915_gem_object *obj)
91 return obj->mm.mapping ? 'M' : ' ';
94 static u64 i915_gem_obj_total_ggtt_size(struct drm_i915_gem_object *obj)
99 for_each_ggtt_vma(vma, obj) {
100 if (drm_mm_node_allocated(&vma->node))
101 size += vma->node.size;
108 stringify_page_sizes(unsigned int page_sizes, char *buf, size_t len)
112 switch (page_sizes) {
115 case I915_GTT_PAGE_SIZE_4K:
117 case I915_GTT_PAGE_SIZE_64K:
119 case I915_GTT_PAGE_SIZE_2M:
125 if (page_sizes & I915_GTT_PAGE_SIZE_2M)
126 x += snprintf(buf + x, len - x, "2M, ");
127 if (page_sizes & I915_GTT_PAGE_SIZE_64K)
128 x += snprintf(buf + x, len - x, "64K, ");
129 if (page_sizes & I915_GTT_PAGE_SIZE_4K)
130 x += snprintf(buf + x, len - x, "4K, ");
138 describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
140 struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
141 struct intel_engine_cs *engine;
142 struct i915_vma *vma;
143 unsigned int frontbuffer_bits;
146 lockdep_assert_held(&obj->base.dev->struct_mutex);
148 seq_printf(m, "%pK: %c%c%c%c%c %8zdKiB %02x %02x %s%s%s",
150 get_active_flag(obj),
152 get_tiling_flag(obj),
153 get_global_flag(obj),
154 get_pin_mapped_flag(obj),
155 obj->base.size / 1024,
158 i915_cache_level_str(dev_priv, obj->cache_level),
159 obj->mm.dirty ? " dirty" : "",
160 obj->mm.madv == I915_MADV_DONTNEED ? " purgeable" : "");
162 seq_printf(m, " (name: %d)", obj->base.name);
163 list_for_each_entry(vma, &obj->vma.list, obj_link) {
164 if (i915_vma_is_pinned(vma))
167 seq_printf(m, " (pinned x %d)", pin_count);
169 seq_printf(m, " (global)");
170 list_for_each_entry(vma, &obj->vma.list, obj_link) {
171 if (!drm_mm_node_allocated(&vma->node))
174 seq_printf(m, " (%sgtt offset: %08llx, size: %08llx, pages: %s",
175 i915_vma_is_ggtt(vma) ? "g" : "pp",
176 vma->node.start, vma->node.size,
177 stringify_page_sizes(vma->page_sizes.gtt, NULL, 0));
178 if (i915_vma_is_ggtt(vma)) {
179 switch (vma->ggtt_view.type) {
180 case I915_GGTT_VIEW_NORMAL:
181 seq_puts(m, ", normal");
184 case I915_GGTT_VIEW_PARTIAL:
185 seq_printf(m, ", partial [%08llx+%x]",
186 vma->ggtt_view.partial.offset << PAGE_SHIFT,
187 vma->ggtt_view.partial.size << PAGE_SHIFT);
190 case I915_GGTT_VIEW_ROTATED:
191 seq_printf(m, ", rotated [(%ux%u, stride=%u, offset=%u), (%ux%u, stride=%u, offset=%u)]",
192 vma->ggtt_view.rotated.plane[0].width,
193 vma->ggtt_view.rotated.plane[0].height,
194 vma->ggtt_view.rotated.plane[0].stride,
195 vma->ggtt_view.rotated.plane[0].offset,
196 vma->ggtt_view.rotated.plane[1].width,
197 vma->ggtt_view.rotated.plane[1].height,
198 vma->ggtt_view.rotated.plane[1].stride,
199 vma->ggtt_view.rotated.plane[1].offset);
203 MISSING_CASE(vma->ggtt_view.type);
208 seq_printf(m, " , fence: %d%s",
210 i915_active_request_isset(&vma->last_fence) ? "*" : "");
214 seq_printf(m, " (stolen: %08llx)", obj->stolen->start);
216 engine = i915_gem_object_last_write_engine(obj);
218 seq_printf(m, " (%s)", engine->name);
220 frontbuffer_bits = atomic_read(&obj->frontbuffer_bits);
221 if (frontbuffer_bits)
222 seq_printf(m, " (frontbuffer: 0x%03x)", frontbuffer_bits);
225 static int obj_rank_by_stolen(const void *A, const void *B)
227 const struct drm_i915_gem_object *a =
228 *(const struct drm_i915_gem_object **)A;
229 const struct drm_i915_gem_object *b =
230 *(const struct drm_i915_gem_object **)B;
232 if (a->stolen->start < b->stolen->start)
234 if (a->stolen->start > b->stolen->start)
239 static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
241 struct drm_i915_private *dev_priv = node_to_i915(m->private);
242 struct drm_device *dev = &dev_priv->drm;
243 struct drm_i915_gem_object **objects;
244 struct drm_i915_gem_object *obj;
245 u64 total_obj_size, total_gtt_size;
246 unsigned long total, count, n;
249 total = READ_ONCE(dev_priv->mm.object_count);
250 objects = kvmalloc_array(total, sizeof(*objects), GFP_KERNEL);
254 ret = mutex_lock_interruptible(&dev->struct_mutex);
258 total_obj_size = total_gtt_size = count = 0;
260 spin_lock(&dev_priv->mm.obj_lock);
261 list_for_each_entry(obj, &dev_priv->mm.bound_list, mm.link) {
265 if (obj->stolen == NULL)
268 objects[count++] = obj;
269 total_obj_size += obj->base.size;
270 total_gtt_size += i915_gem_obj_total_ggtt_size(obj);
273 list_for_each_entry(obj, &dev_priv->mm.unbound_list, mm.link) {
277 if (obj->stolen == NULL)
280 objects[count++] = obj;
281 total_obj_size += obj->base.size;
283 spin_unlock(&dev_priv->mm.obj_lock);
285 sort(objects, count, sizeof(*objects), obj_rank_by_stolen, NULL);
287 seq_puts(m, "Stolen:\n");
288 for (n = 0; n < count; n++) {
290 describe_obj(m, objects[n]);
293 seq_printf(m, "Total %lu objects, %llu bytes, %llu GTT size\n",
294 count, total_obj_size, total_gtt_size);
296 mutex_unlock(&dev->struct_mutex);
303 struct i915_address_space *vm;
307 u64 active, inactive;
311 static int per_file_stats(int id, void *ptr, void *data)
313 struct drm_i915_gem_object *obj = ptr;
314 struct file_stats *stats = data;
315 struct i915_vma *vma;
317 lockdep_assert_held(&obj->base.dev->struct_mutex);
320 stats->total += obj->base.size;
321 if (!obj->bind_count)
322 stats->unbound += obj->base.size;
323 if (obj->base.name || obj->base.dma_buf)
324 stats->shared += obj->base.size;
326 list_for_each_entry(vma, &obj->vma.list, obj_link) {
327 if (!drm_mm_node_allocated(&vma->node))
330 if (i915_vma_is_ggtt(vma)) {
331 stats->global += vma->node.size;
333 if (vma->vm != stats->vm)
337 if (i915_vma_is_active(vma))
338 stats->active += vma->node.size;
340 stats->inactive += vma->node.size;
342 if (i915_vma_is_closed(vma))
343 stats->closed += vma->node.size;
349 #define print_file_stats(m, name, stats) do { \
351 seq_printf(m, "%s: %lu objects, %llu bytes (%llu active, %llu inactive, %llu global, %llu shared, %llu unbound, %llu closed)\n", \
363 static void print_batch_pool_stats(struct seq_file *m,
364 struct drm_i915_private *dev_priv)
366 struct drm_i915_gem_object *obj;
367 struct intel_engine_cs *engine;
368 struct file_stats stats = {};
369 enum intel_engine_id id;
372 for_each_engine(engine, dev_priv, id) {
373 for (j = 0; j < ARRAY_SIZE(engine->batch_pool.cache_list); j++) {
374 list_for_each_entry(obj,
375 &engine->batch_pool.cache_list[j],
377 per_file_stats(0, obj, &stats);
381 print_file_stats(m, "[k]batch pool", stats);
384 static void print_context_stats(struct seq_file *m,
385 struct drm_i915_private *i915)
387 struct file_stats kstats = {};
388 struct i915_gem_context *ctx;
390 list_for_each_entry(ctx, &i915->contexts.list, link) {
391 struct intel_context *ce;
393 list_for_each_entry(ce, &ctx->active_engines, active_link) {
395 per_file_stats(0, ce->state->obj, &kstats);
397 per_file_stats(0, ce->ring->vma->obj, &kstats);
400 if (!IS_ERR_OR_NULL(ctx->file_priv)) {
401 struct file_stats stats = { .vm = &ctx->ppgtt->vm, };
402 struct drm_file *file = ctx->file_priv->file;
403 struct task_struct *task;
406 spin_lock(&file->table_lock);
407 idr_for_each(&file->object_idr, per_file_stats, &stats);
408 spin_unlock(&file->table_lock);
411 task = pid_task(ctx->pid ?: file->pid, PIDTYPE_PID);
412 snprintf(name, sizeof(name), "%s",
413 task ? task->comm : "<unknown>");
416 print_file_stats(m, name, stats);
420 print_file_stats(m, "[k]contexts", kstats);
423 static int i915_gem_object_info(struct seq_file *m, void *data)
425 struct drm_i915_private *dev_priv = node_to_i915(m->private);
426 struct drm_device *dev = &dev_priv->drm;
427 struct i915_ggtt *ggtt = &dev_priv->ggtt;
428 u32 count, mapped_count, purgeable_count, dpy_count, huge_count;
429 u64 size, mapped_size, purgeable_size, dpy_size, huge_size;
430 struct drm_i915_gem_object *obj;
431 unsigned int page_sizes = 0;
435 seq_printf(m, "%u objects, %llu bytes\n",
436 dev_priv->mm.object_count,
437 dev_priv->mm.object_memory);
440 mapped_size = mapped_count = 0;
441 purgeable_size = purgeable_count = 0;
442 huge_size = huge_count = 0;
444 spin_lock(&dev_priv->mm.obj_lock);
445 list_for_each_entry(obj, &dev_priv->mm.unbound_list, mm.link) {
446 size += obj->base.size;
449 if (obj->mm.madv == I915_MADV_DONTNEED) {
450 purgeable_size += obj->base.size;
454 if (obj->mm.mapping) {
456 mapped_size += obj->base.size;
459 if (obj->mm.page_sizes.sg > I915_GTT_PAGE_SIZE) {
461 huge_size += obj->base.size;
462 page_sizes |= obj->mm.page_sizes.sg;
465 seq_printf(m, "%u unbound objects, %llu bytes\n", count, size);
467 size = count = dpy_size = dpy_count = 0;
468 list_for_each_entry(obj, &dev_priv->mm.bound_list, mm.link) {
469 size += obj->base.size;
472 if (obj->pin_global) {
473 dpy_size += obj->base.size;
477 if (obj->mm.madv == I915_MADV_DONTNEED) {
478 purgeable_size += obj->base.size;
482 if (obj->mm.mapping) {
484 mapped_size += obj->base.size;
487 if (obj->mm.page_sizes.sg > I915_GTT_PAGE_SIZE) {
489 huge_size += obj->base.size;
490 page_sizes |= obj->mm.page_sizes.sg;
493 spin_unlock(&dev_priv->mm.obj_lock);
495 seq_printf(m, "%u bound objects, %llu bytes\n",
497 seq_printf(m, "%u purgeable objects, %llu bytes\n",
498 purgeable_count, purgeable_size);
499 seq_printf(m, "%u mapped objects, %llu bytes\n",
500 mapped_count, mapped_size);
501 seq_printf(m, "%u huge-paged objects (%s) %llu bytes\n",
503 stringify_page_sizes(page_sizes, buf, sizeof(buf)),
505 seq_printf(m, "%u display objects (globally pinned), %llu bytes\n",
506 dpy_count, dpy_size);
508 seq_printf(m, "%llu [%pa] gtt total\n",
509 ggtt->vm.total, &ggtt->mappable_end);
510 seq_printf(m, "Supported page sizes: %s\n",
511 stringify_page_sizes(INTEL_INFO(dev_priv)->page_sizes,
516 ret = mutex_lock_interruptible(&dev->struct_mutex);
520 print_batch_pool_stats(m, dev_priv);
521 print_context_stats(m, dev_priv);
522 mutex_unlock(&dev->struct_mutex);
527 static int i915_gem_gtt_info(struct seq_file *m, void *data)
529 struct drm_info_node *node = m->private;
530 struct drm_i915_private *dev_priv = node_to_i915(node);
531 struct drm_device *dev = &dev_priv->drm;
532 struct drm_i915_gem_object **objects;
533 struct drm_i915_gem_object *obj;
534 u64 total_obj_size, total_gtt_size;
535 unsigned long nobject, n;
538 nobject = READ_ONCE(dev_priv->mm.object_count);
539 objects = kvmalloc_array(nobject, sizeof(*objects), GFP_KERNEL);
543 ret = mutex_lock_interruptible(&dev->struct_mutex);
548 spin_lock(&dev_priv->mm.obj_lock);
549 list_for_each_entry(obj, &dev_priv->mm.bound_list, mm.link) {
550 objects[count++] = obj;
551 if (count == nobject)
554 spin_unlock(&dev_priv->mm.obj_lock);
556 total_obj_size = total_gtt_size = 0;
557 for (n = 0; n < count; n++) {
561 describe_obj(m, obj);
563 total_obj_size += obj->base.size;
564 total_gtt_size += i915_gem_obj_total_ggtt_size(obj);
567 mutex_unlock(&dev->struct_mutex);
569 seq_printf(m, "Total %d objects, %llu bytes, %llu GTT size\n",
570 count, total_obj_size, total_gtt_size);
576 static int i915_gem_batch_pool_info(struct seq_file *m, void *data)
578 struct drm_i915_private *dev_priv = node_to_i915(m->private);
579 struct drm_device *dev = &dev_priv->drm;
580 struct drm_i915_gem_object *obj;
581 struct intel_engine_cs *engine;
582 enum intel_engine_id id;
586 ret = mutex_lock_interruptible(&dev->struct_mutex);
590 for_each_engine(engine, dev_priv, id) {
591 for (j = 0; j < ARRAY_SIZE(engine->batch_pool.cache_list); j++) {
595 list_for_each_entry(obj,
596 &engine->batch_pool.cache_list[j],
599 seq_printf(m, "%s cache[%d]: %d objects\n",
600 engine->name, j, count);
602 list_for_each_entry(obj,
603 &engine->batch_pool.cache_list[j],
606 describe_obj(m, obj);
614 seq_printf(m, "total: %d\n", total);
616 mutex_unlock(&dev->struct_mutex);
621 static void gen8_display_interrupt_info(struct seq_file *m)
623 struct drm_i915_private *dev_priv = node_to_i915(m->private);
626 for_each_pipe(dev_priv, pipe) {
627 enum intel_display_power_domain power_domain;
628 intel_wakeref_t wakeref;
630 power_domain = POWER_DOMAIN_PIPE(pipe);
631 wakeref = intel_display_power_get_if_enabled(dev_priv,
634 seq_printf(m, "Pipe %c power disabled\n",
638 seq_printf(m, "Pipe %c IMR:\t%08x\n",
640 I915_READ(GEN8_DE_PIPE_IMR(pipe)));
641 seq_printf(m, "Pipe %c IIR:\t%08x\n",
643 I915_READ(GEN8_DE_PIPE_IIR(pipe)));
644 seq_printf(m, "Pipe %c IER:\t%08x\n",
646 I915_READ(GEN8_DE_PIPE_IER(pipe)));
648 intel_display_power_put(dev_priv, power_domain, wakeref);
651 seq_printf(m, "Display Engine port interrupt mask:\t%08x\n",
652 I915_READ(GEN8_DE_PORT_IMR));
653 seq_printf(m, "Display Engine port interrupt identity:\t%08x\n",
654 I915_READ(GEN8_DE_PORT_IIR));
655 seq_printf(m, "Display Engine port interrupt enable:\t%08x\n",
656 I915_READ(GEN8_DE_PORT_IER));
658 seq_printf(m, "Display Engine misc interrupt mask:\t%08x\n",
659 I915_READ(GEN8_DE_MISC_IMR));
660 seq_printf(m, "Display Engine misc interrupt identity:\t%08x\n",
661 I915_READ(GEN8_DE_MISC_IIR));
662 seq_printf(m, "Display Engine misc interrupt enable:\t%08x\n",
663 I915_READ(GEN8_DE_MISC_IER));
665 seq_printf(m, "PCU interrupt mask:\t%08x\n",
666 I915_READ(GEN8_PCU_IMR));
667 seq_printf(m, "PCU interrupt identity:\t%08x\n",
668 I915_READ(GEN8_PCU_IIR));
669 seq_printf(m, "PCU interrupt enable:\t%08x\n",
670 I915_READ(GEN8_PCU_IER));
673 static int i915_interrupt_info(struct seq_file *m, void *data)
675 struct drm_i915_private *dev_priv = node_to_i915(m->private);
676 struct intel_engine_cs *engine;
677 enum intel_engine_id id;
678 intel_wakeref_t wakeref;
681 wakeref = intel_runtime_pm_get(dev_priv);
683 if (IS_CHERRYVIEW(dev_priv)) {
684 intel_wakeref_t pref;
686 seq_printf(m, "Master Interrupt Control:\t%08x\n",
687 I915_READ(GEN8_MASTER_IRQ));
689 seq_printf(m, "Display IER:\t%08x\n",
691 seq_printf(m, "Display IIR:\t%08x\n",
693 seq_printf(m, "Display IIR_RW:\t%08x\n",
694 I915_READ(VLV_IIR_RW));
695 seq_printf(m, "Display IMR:\t%08x\n",
697 for_each_pipe(dev_priv, pipe) {
698 enum intel_display_power_domain power_domain;
700 power_domain = POWER_DOMAIN_PIPE(pipe);
701 pref = intel_display_power_get_if_enabled(dev_priv,
704 seq_printf(m, "Pipe %c power disabled\n",
709 seq_printf(m, "Pipe %c stat:\t%08x\n",
711 I915_READ(PIPESTAT(pipe)));
713 intel_display_power_put(dev_priv, power_domain, pref);
716 pref = intel_display_power_get(dev_priv, POWER_DOMAIN_INIT);
717 seq_printf(m, "Port hotplug:\t%08x\n",
718 I915_READ(PORT_HOTPLUG_EN));
719 seq_printf(m, "DPFLIPSTAT:\t%08x\n",
720 I915_READ(VLV_DPFLIPSTAT));
721 seq_printf(m, "DPINVGTT:\t%08x\n",
722 I915_READ(DPINVGTT));
723 intel_display_power_put(dev_priv, POWER_DOMAIN_INIT, pref);
725 for (i = 0; i < 4; i++) {
726 seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
727 i, I915_READ(GEN8_GT_IMR(i)));
728 seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
729 i, I915_READ(GEN8_GT_IIR(i)));
730 seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
731 i, I915_READ(GEN8_GT_IER(i)));
734 seq_printf(m, "PCU interrupt mask:\t%08x\n",
735 I915_READ(GEN8_PCU_IMR));
736 seq_printf(m, "PCU interrupt identity:\t%08x\n",
737 I915_READ(GEN8_PCU_IIR));
738 seq_printf(m, "PCU interrupt enable:\t%08x\n",
739 I915_READ(GEN8_PCU_IER));
740 } else if (INTEL_GEN(dev_priv) >= 11) {
741 seq_printf(m, "Master Interrupt Control: %08x\n",
742 I915_READ(GEN11_GFX_MSTR_IRQ));
744 seq_printf(m, "Render/Copy Intr Enable: %08x\n",
745 I915_READ(GEN11_RENDER_COPY_INTR_ENABLE));
746 seq_printf(m, "VCS/VECS Intr Enable: %08x\n",
747 I915_READ(GEN11_VCS_VECS_INTR_ENABLE));
748 seq_printf(m, "GUC/SG Intr Enable:\t %08x\n",
749 I915_READ(GEN11_GUC_SG_INTR_ENABLE));
750 seq_printf(m, "GPM/WGBOXPERF Intr Enable: %08x\n",
751 I915_READ(GEN11_GPM_WGBOXPERF_INTR_ENABLE));
752 seq_printf(m, "Crypto Intr Enable:\t %08x\n",
753 I915_READ(GEN11_CRYPTO_RSVD_INTR_ENABLE));
754 seq_printf(m, "GUnit/CSME Intr Enable:\t %08x\n",
755 I915_READ(GEN11_GUNIT_CSME_INTR_ENABLE));
757 seq_printf(m, "Display Interrupt Control:\t%08x\n",
758 I915_READ(GEN11_DISPLAY_INT_CTL));
760 gen8_display_interrupt_info(m);
761 } else if (INTEL_GEN(dev_priv) >= 8) {
762 seq_printf(m, "Master Interrupt Control:\t%08x\n",
763 I915_READ(GEN8_MASTER_IRQ));
765 for (i = 0; i < 4; i++) {
766 seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
767 i, I915_READ(GEN8_GT_IMR(i)));
768 seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
769 i, I915_READ(GEN8_GT_IIR(i)));
770 seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
771 i, I915_READ(GEN8_GT_IER(i)));
774 gen8_display_interrupt_info(m);
775 } else if (IS_VALLEYVIEW(dev_priv)) {
776 seq_printf(m, "Display IER:\t%08x\n",
778 seq_printf(m, "Display IIR:\t%08x\n",
780 seq_printf(m, "Display IIR_RW:\t%08x\n",
781 I915_READ(VLV_IIR_RW));
782 seq_printf(m, "Display IMR:\t%08x\n",
784 for_each_pipe(dev_priv, pipe) {
785 enum intel_display_power_domain power_domain;
786 intel_wakeref_t pref;
788 power_domain = POWER_DOMAIN_PIPE(pipe);
789 pref = intel_display_power_get_if_enabled(dev_priv,
792 seq_printf(m, "Pipe %c power disabled\n",
797 seq_printf(m, "Pipe %c stat:\t%08x\n",
799 I915_READ(PIPESTAT(pipe)));
800 intel_display_power_put(dev_priv, power_domain, pref);
803 seq_printf(m, "Master IER:\t%08x\n",
804 I915_READ(VLV_MASTER_IER));
806 seq_printf(m, "Render IER:\t%08x\n",
808 seq_printf(m, "Render IIR:\t%08x\n",
810 seq_printf(m, "Render IMR:\t%08x\n",
813 seq_printf(m, "PM IER:\t\t%08x\n",
814 I915_READ(GEN6_PMIER));
815 seq_printf(m, "PM IIR:\t\t%08x\n",
816 I915_READ(GEN6_PMIIR));
817 seq_printf(m, "PM IMR:\t\t%08x\n",
818 I915_READ(GEN6_PMIMR));
820 seq_printf(m, "Port hotplug:\t%08x\n",
821 I915_READ(PORT_HOTPLUG_EN));
822 seq_printf(m, "DPFLIPSTAT:\t%08x\n",
823 I915_READ(VLV_DPFLIPSTAT));
824 seq_printf(m, "DPINVGTT:\t%08x\n",
825 I915_READ(DPINVGTT));
827 } else if (!HAS_PCH_SPLIT(dev_priv)) {
828 seq_printf(m, "Interrupt enable: %08x\n",
830 seq_printf(m, "Interrupt identity: %08x\n",
832 seq_printf(m, "Interrupt mask: %08x\n",
834 for_each_pipe(dev_priv, pipe)
835 seq_printf(m, "Pipe %c stat: %08x\n",
837 I915_READ(PIPESTAT(pipe)));
839 seq_printf(m, "North Display Interrupt enable: %08x\n",
841 seq_printf(m, "North Display Interrupt identity: %08x\n",
843 seq_printf(m, "North Display Interrupt mask: %08x\n",
845 seq_printf(m, "South Display Interrupt enable: %08x\n",
847 seq_printf(m, "South Display Interrupt identity: %08x\n",
849 seq_printf(m, "South Display Interrupt mask: %08x\n",
851 seq_printf(m, "Graphics Interrupt enable: %08x\n",
853 seq_printf(m, "Graphics Interrupt identity: %08x\n",
855 seq_printf(m, "Graphics Interrupt mask: %08x\n",
859 if (INTEL_GEN(dev_priv) >= 11) {
860 seq_printf(m, "RCS Intr Mask:\t %08x\n",
861 I915_READ(GEN11_RCS0_RSVD_INTR_MASK));
862 seq_printf(m, "BCS Intr Mask:\t %08x\n",
863 I915_READ(GEN11_BCS_RSVD_INTR_MASK));
864 seq_printf(m, "VCS0/VCS1 Intr Mask:\t %08x\n",
865 I915_READ(GEN11_VCS0_VCS1_INTR_MASK));
866 seq_printf(m, "VCS2/VCS3 Intr Mask:\t %08x\n",
867 I915_READ(GEN11_VCS2_VCS3_INTR_MASK));
868 seq_printf(m, "VECS0/VECS1 Intr Mask:\t %08x\n",
869 I915_READ(GEN11_VECS0_VECS1_INTR_MASK));
870 seq_printf(m, "GUC/SG Intr Mask:\t %08x\n",
871 I915_READ(GEN11_GUC_SG_INTR_MASK));
872 seq_printf(m, "GPM/WGBOXPERF Intr Mask: %08x\n",
873 I915_READ(GEN11_GPM_WGBOXPERF_INTR_MASK));
874 seq_printf(m, "Crypto Intr Mask:\t %08x\n",
875 I915_READ(GEN11_CRYPTO_RSVD_INTR_MASK));
876 seq_printf(m, "Gunit/CSME Intr Mask:\t %08x\n",
877 I915_READ(GEN11_GUNIT_CSME_INTR_MASK));
879 } else if (INTEL_GEN(dev_priv) >= 6) {
880 for_each_engine(engine, dev_priv, id) {
882 "Graphics Interrupt mask (%s): %08x\n",
883 engine->name, ENGINE_READ(engine, RING_IMR));
887 intel_runtime_pm_put(dev_priv, wakeref);
892 static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
894 struct drm_i915_private *dev_priv = node_to_i915(m->private);
895 struct drm_device *dev = &dev_priv->drm;
898 ret = mutex_lock_interruptible(&dev->struct_mutex);
902 seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
903 for (i = 0; i < dev_priv->num_fence_regs; i++) {
904 struct i915_vma *vma = dev_priv->fence_regs[i].vma;
906 seq_printf(m, "Fence %d, pin count = %d, object = ",
907 i, dev_priv->fence_regs[i].pin_count);
909 seq_puts(m, "unused");
911 describe_obj(m, vma->obj);
915 mutex_unlock(&dev->struct_mutex);
919 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
920 static ssize_t gpu_state_read(struct file *file, char __user *ubuf,
921 size_t count, loff_t *pos)
923 struct i915_gpu_state *error;
927 error = file->private_data;
931 /* Bounce buffer required because of kernfs __user API convenience. */
932 buf = kmalloc(count, GFP_KERNEL);
936 ret = i915_gpu_state_copy_to_buffer(error, buf, *pos, count);
940 if (!copy_to_user(ubuf, buf, ret))
950 static int gpu_state_release(struct inode *inode, struct file *file)
952 i915_gpu_state_put(file->private_data);
956 static int i915_gpu_info_open(struct inode *inode, struct file *file)
958 struct drm_i915_private *i915 = inode->i_private;
959 struct i915_gpu_state *gpu;
960 intel_wakeref_t wakeref;
963 with_intel_runtime_pm(i915, wakeref)
964 gpu = i915_capture_gpu_state(i915);
968 file->private_data = gpu;
972 static const struct file_operations i915_gpu_info_fops = {
973 .owner = THIS_MODULE,
974 .open = i915_gpu_info_open,
975 .read = gpu_state_read,
976 .llseek = default_llseek,
977 .release = gpu_state_release,
981 i915_error_state_write(struct file *filp,
982 const char __user *ubuf,
986 struct i915_gpu_state *error = filp->private_data;
991 DRM_DEBUG_DRIVER("Resetting error state\n");
992 i915_reset_error_state(error->i915);
997 static int i915_error_state_open(struct inode *inode, struct file *file)
999 struct i915_gpu_state *error;
1001 error = i915_first_error_state(inode->i_private);
1003 return PTR_ERR(error);
1005 file->private_data = error;
1009 static const struct file_operations i915_error_state_fops = {
1010 .owner = THIS_MODULE,
1011 .open = i915_error_state_open,
1012 .read = gpu_state_read,
1013 .write = i915_error_state_write,
1014 .llseek = default_llseek,
1015 .release = gpu_state_release,
1019 static int i915_frequency_info(struct seq_file *m, void *unused)
1021 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1022 struct intel_rps *rps = &dev_priv->gt_pm.rps;
1023 intel_wakeref_t wakeref;
1026 wakeref = intel_runtime_pm_get(dev_priv);
1028 if (IS_GEN(dev_priv, 5)) {
1029 u16 rgvswctl = I915_READ16(MEMSWCTL);
1030 u16 rgvstat = I915_READ16(MEMSTAT_ILK);
1032 seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
1033 seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
1034 seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
1036 seq_printf(m, "Current P-state: %d\n",
1037 (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
1038 } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
1039 u32 rpmodectl, freq_sts;
1041 mutex_lock(&dev_priv->pcu_lock);
1043 rpmodectl = I915_READ(GEN6_RP_CONTROL);
1044 seq_printf(m, "Video Turbo Mode: %s\n",
1045 yesno(rpmodectl & GEN6_RP_MEDIA_TURBO));
1046 seq_printf(m, "HW control enabled: %s\n",
1047 yesno(rpmodectl & GEN6_RP_ENABLE));
1048 seq_printf(m, "SW control enabled: %s\n",
1049 yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) ==
1050 GEN6_RP_MEDIA_SW_MODE));
1052 freq_sts = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
1053 seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
1054 seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
1056 seq_printf(m, "actual GPU freq: %d MHz\n",
1057 intel_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff));
1059 seq_printf(m, "current GPU freq: %d MHz\n",
1060 intel_gpu_freq(dev_priv, rps->cur_freq));
1062 seq_printf(m, "max GPU freq: %d MHz\n",
1063 intel_gpu_freq(dev_priv, rps->max_freq));
1065 seq_printf(m, "min GPU freq: %d MHz\n",
1066 intel_gpu_freq(dev_priv, rps->min_freq));
1068 seq_printf(m, "idle GPU freq: %d MHz\n",
1069 intel_gpu_freq(dev_priv, rps->idle_freq));
1072 "efficient (RPe) frequency: %d MHz\n",
1073 intel_gpu_freq(dev_priv, rps->efficient_freq));
1074 mutex_unlock(&dev_priv->pcu_lock);
1075 } else if (INTEL_GEN(dev_priv) >= 6) {
1076 u32 rp_state_limits;
1079 u32 rpmodectl, rpinclimit, rpdeclimit;
1080 u32 rpstat, cagf, reqf;
1081 u32 rpupei, rpcurup, rpprevup;
1082 u32 rpdownei, rpcurdown, rpprevdown;
1083 u32 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask;
1086 rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
1087 if (IS_GEN9_LP(dev_priv)) {
1088 rp_state_cap = I915_READ(BXT_RP_STATE_CAP);
1089 gt_perf_status = I915_READ(BXT_GT_PERF_STATUS);
1091 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
1092 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
1095 /* RPSTAT1 is in the GT power well */
1096 intel_uncore_forcewake_get(&dev_priv->uncore, FORCEWAKE_ALL);
1098 reqf = I915_READ(GEN6_RPNSWREQ);
1099 if (INTEL_GEN(dev_priv) >= 9)
1102 reqf &= ~GEN6_TURBO_DISABLE;
1103 if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
1108 reqf = intel_gpu_freq(dev_priv, reqf);
1110 rpmodectl = I915_READ(GEN6_RP_CONTROL);
1111 rpinclimit = I915_READ(GEN6_RP_UP_THRESHOLD);
1112 rpdeclimit = I915_READ(GEN6_RP_DOWN_THRESHOLD);
1114 rpstat = I915_READ(GEN6_RPSTAT1);
1115 rpupei = I915_READ(GEN6_RP_CUR_UP_EI) & GEN6_CURICONT_MASK;
1116 rpcurup = I915_READ(GEN6_RP_CUR_UP) & GEN6_CURBSYTAVG_MASK;
1117 rpprevup = I915_READ(GEN6_RP_PREV_UP) & GEN6_CURBSYTAVG_MASK;
1118 rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI) & GEN6_CURIAVG_MASK;
1119 rpcurdown = I915_READ(GEN6_RP_CUR_DOWN) & GEN6_CURBSYTAVG_MASK;
1120 rpprevdown = I915_READ(GEN6_RP_PREV_DOWN) & GEN6_CURBSYTAVG_MASK;
1121 cagf = intel_gpu_freq(dev_priv,
1122 intel_get_cagf(dev_priv, rpstat));
1124 intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL);
1126 if (INTEL_GEN(dev_priv) >= 11) {
1127 pm_ier = I915_READ(GEN11_GPM_WGBOXPERF_INTR_ENABLE);
1128 pm_imr = I915_READ(GEN11_GPM_WGBOXPERF_INTR_MASK);
1130 * The equivalent to the PM ISR & IIR cannot be read
1131 * without affecting the current state of the system
1135 } else if (INTEL_GEN(dev_priv) >= 8) {
1136 pm_ier = I915_READ(GEN8_GT_IER(2));
1137 pm_imr = I915_READ(GEN8_GT_IMR(2));
1138 pm_isr = I915_READ(GEN8_GT_ISR(2));
1139 pm_iir = I915_READ(GEN8_GT_IIR(2));
1141 pm_ier = I915_READ(GEN6_PMIER);
1142 pm_imr = I915_READ(GEN6_PMIMR);
1143 pm_isr = I915_READ(GEN6_PMISR);
1144 pm_iir = I915_READ(GEN6_PMIIR);
1146 pm_mask = I915_READ(GEN6_PMINTRMSK);
1148 seq_printf(m, "Video Turbo Mode: %s\n",
1149 yesno(rpmodectl & GEN6_RP_MEDIA_TURBO));
1150 seq_printf(m, "HW control enabled: %s\n",
1151 yesno(rpmodectl & GEN6_RP_ENABLE));
1152 seq_printf(m, "SW control enabled: %s\n",
1153 yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) ==
1154 GEN6_RP_MEDIA_SW_MODE));
1156 seq_printf(m, "PM IER=0x%08x IMR=0x%08x, MASK=0x%08x\n",
1157 pm_ier, pm_imr, pm_mask);
1158 if (INTEL_GEN(dev_priv) <= 10)
1159 seq_printf(m, "PM ISR=0x%08x IIR=0x%08x\n",
1161 seq_printf(m, "pm_intrmsk_mbz: 0x%08x\n",
1162 rps->pm_intrmsk_mbz);
1163 seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
1164 seq_printf(m, "Render p-state ratio: %d\n",
1165 (gt_perf_status & (INTEL_GEN(dev_priv) >= 9 ? 0x1ff00 : 0xff00)) >> 8);
1166 seq_printf(m, "Render p-state VID: %d\n",
1167 gt_perf_status & 0xff);
1168 seq_printf(m, "Render p-state limit: %d\n",
1169 rp_state_limits & 0xff);
1170 seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
1171 seq_printf(m, "RPMODECTL: 0x%08x\n", rpmodectl);
1172 seq_printf(m, "RPINCLIMIT: 0x%08x\n", rpinclimit);
1173 seq_printf(m, "RPDECLIMIT: 0x%08x\n", rpdeclimit);
1174 seq_printf(m, "RPNSWREQ: %dMHz\n", reqf);
1175 seq_printf(m, "CAGF: %dMHz\n", cagf);
1176 seq_printf(m, "RP CUR UP EI: %d (%dus)\n",
1177 rpupei, GT_PM_INTERVAL_TO_US(dev_priv, rpupei));
1178 seq_printf(m, "RP CUR UP: %d (%dus)\n",
1179 rpcurup, GT_PM_INTERVAL_TO_US(dev_priv, rpcurup));
1180 seq_printf(m, "RP PREV UP: %d (%dus)\n",
1181 rpprevup, GT_PM_INTERVAL_TO_US(dev_priv, rpprevup));
1182 seq_printf(m, "Up threshold: %d%%\n",
1183 rps->power.up_threshold);
1185 seq_printf(m, "RP CUR DOWN EI: %d (%dus)\n",
1186 rpdownei, GT_PM_INTERVAL_TO_US(dev_priv, rpdownei));
1187 seq_printf(m, "RP CUR DOWN: %d (%dus)\n",
1188 rpcurdown, GT_PM_INTERVAL_TO_US(dev_priv, rpcurdown));
1189 seq_printf(m, "RP PREV DOWN: %d (%dus)\n",
1190 rpprevdown, GT_PM_INTERVAL_TO_US(dev_priv, rpprevdown));
1191 seq_printf(m, "Down threshold: %d%%\n",
1192 rps->power.down_threshold);
1194 max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 0 :
1195 rp_state_cap >> 16) & 0xff;
1196 max_freq *= (IS_GEN9_BC(dev_priv) ||
1197 INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1);
1198 seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
1199 intel_gpu_freq(dev_priv, max_freq));
1201 max_freq = (rp_state_cap & 0xff00) >> 8;
1202 max_freq *= (IS_GEN9_BC(dev_priv) ||
1203 INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1);
1204 seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
1205 intel_gpu_freq(dev_priv, max_freq));
1207 max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 16 :
1208 rp_state_cap >> 0) & 0xff;
1209 max_freq *= (IS_GEN9_BC(dev_priv) ||
1210 INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1);
1211 seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
1212 intel_gpu_freq(dev_priv, max_freq));
1213 seq_printf(m, "Max overclocked frequency: %dMHz\n",
1214 intel_gpu_freq(dev_priv, rps->max_freq));
1216 seq_printf(m, "Current freq: %d MHz\n",
1217 intel_gpu_freq(dev_priv, rps->cur_freq));
1218 seq_printf(m, "Actual freq: %d MHz\n", cagf);
1219 seq_printf(m, "Idle freq: %d MHz\n",
1220 intel_gpu_freq(dev_priv, rps->idle_freq));
1221 seq_printf(m, "Min freq: %d MHz\n",
1222 intel_gpu_freq(dev_priv, rps->min_freq));
1223 seq_printf(m, "Boost freq: %d MHz\n",
1224 intel_gpu_freq(dev_priv, rps->boost_freq));
1225 seq_printf(m, "Max freq: %d MHz\n",
1226 intel_gpu_freq(dev_priv, rps->max_freq));
1228 "efficient (RPe) frequency: %d MHz\n",
1229 intel_gpu_freq(dev_priv, rps->efficient_freq));
1231 seq_puts(m, "no P-state info available\n");
1234 seq_printf(m, "Current CD clock frequency: %d kHz\n", dev_priv->cdclk.hw.cdclk);
1235 seq_printf(m, "Max CD clock frequency: %d kHz\n", dev_priv->max_cdclk_freq);
1236 seq_printf(m, "Max pixel clock frequency: %d kHz\n", dev_priv->max_dotclk_freq);
1238 intel_runtime_pm_put(dev_priv, wakeref);
1242 static void i915_instdone_info(struct drm_i915_private *dev_priv,
1244 struct intel_instdone *instdone)
1249 seq_printf(m, "\t\tINSTDONE: 0x%08x\n",
1250 instdone->instdone);
1252 if (INTEL_GEN(dev_priv) <= 3)
1255 seq_printf(m, "\t\tSC_INSTDONE: 0x%08x\n",
1256 instdone->slice_common);
1258 if (INTEL_GEN(dev_priv) <= 6)
1261 for_each_instdone_slice_subslice(dev_priv, slice, subslice)
1262 seq_printf(m, "\t\tSAMPLER_INSTDONE[%d][%d]: 0x%08x\n",
1263 slice, subslice, instdone->sampler[slice][subslice]);
1265 for_each_instdone_slice_subslice(dev_priv, slice, subslice)
1266 seq_printf(m, "\t\tROW_INSTDONE[%d][%d]: 0x%08x\n",
1267 slice, subslice, instdone->row[slice][subslice]);
1270 static int i915_hangcheck_info(struct seq_file *m, void *unused)
1272 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1273 struct intel_engine_cs *engine;
1274 u64 acthd[I915_NUM_ENGINES];
1275 u32 seqno[I915_NUM_ENGINES];
1276 struct intel_instdone instdone;
1277 intel_wakeref_t wakeref;
1278 enum intel_engine_id id;
1280 seq_printf(m, "Reset flags: %lx\n", dev_priv->gpu_error.flags);
1281 if (test_bit(I915_WEDGED, &dev_priv->gpu_error.flags))
1282 seq_puts(m, "\tWedged\n");
1283 if (test_bit(I915_RESET_BACKOFF, &dev_priv->gpu_error.flags))
1284 seq_puts(m, "\tDevice (global) reset in progress\n");
1286 if (!i915_modparams.enable_hangcheck) {
1287 seq_puts(m, "Hangcheck disabled\n");
1291 with_intel_runtime_pm(dev_priv, wakeref) {
1292 for_each_engine(engine, dev_priv, id) {
1293 acthd[id] = intel_engine_get_active_head(engine);
1294 seqno[id] = intel_engine_get_hangcheck_seqno(engine);
1297 intel_engine_get_instdone(dev_priv->engine[RCS0], &instdone);
1300 if (timer_pending(&dev_priv->gpu_error.hangcheck_work.timer))
1301 seq_printf(m, "Hangcheck active, timer fires in %dms\n",
1302 jiffies_to_msecs(dev_priv->gpu_error.hangcheck_work.timer.expires -
1304 else if (delayed_work_pending(&dev_priv->gpu_error.hangcheck_work))
1305 seq_puts(m, "Hangcheck active, work pending\n");
1307 seq_puts(m, "Hangcheck inactive\n");
1309 seq_printf(m, "GT active? %s\n", yesno(dev_priv->gt.awake));
1311 for_each_engine(engine, dev_priv, id) {
1312 seq_printf(m, "%s:\n", engine->name);
1313 seq_printf(m, "\tseqno = %x [current %x, last %x], %dms ago\n",
1314 engine->hangcheck.last_seqno,
1316 engine->hangcheck.next_seqno,
1317 jiffies_to_msecs(jiffies -
1318 engine->hangcheck.action_timestamp));
1320 seq_printf(m, "\tACTHD = 0x%08llx [current 0x%08llx]\n",
1321 (long long)engine->hangcheck.acthd,
1322 (long long)acthd[id]);
1324 if (engine->id == RCS0) {
1325 seq_puts(m, "\tinstdone read =\n");
1327 i915_instdone_info(dev_priv, m, &instdone);
1329 seq_puts(m, "\tinstdone accu =\n");
1331 i915_instdone_info(dev_priv, m,
1332 &engine->hangcheck.instdone);
1339 static int i915_reset_info(struct seq_file *m, void *unused)
1341 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1342 struct i915_gpu_error *error = &dev_priv->gpu_error;
1343 struct intel_engine_cs *engine;
1344 enum intel_engine_id id;
1346 seq_printf(m, "full gpu reset = %u\n", i915_reset_count(error));
1348 for_each_engine(engine, dev_priv, id) {
1349 seq_printf(m, "%s = %u\n", engine->name,
1350 i915_reset_engine_count(error, engine));
1356 static int ironlake_drpc_info(struct seq_file *m)
1358 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1359 u32 rgvmodectl, rstdbyctl;
1362 rgvmodectl = I915_READ(MEMMODECTL);
1363 rstdbyctl = I915_READ(RSTDBYCTL);
1364 crstandvid = I915_READ16(CRSTANDVID);
1366 seq_printf(m, "HD boost: %s\n", yesno(rgvmodectl & MEMMODE_BOOST_EN));
1367 seq_printf(m, "Boost freq: %d\n",
1368 (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
1369 MEMMODE_BOOST_FREQ_SHIFT);
1370 seq_printf(m, "HW control enabled: %s\n",
1371 yesno(rgvmodectl & MEMMODE_HWIDLE_EN));
1372 seq_printf(m, "SW control enabled: %s\n",
1373 yesno(rgvmodectl & MEMMODE_SWMODE_EN));
1374 seq_printf(m, "Gated voltage change: %s\n",
1375 yesno(rgvmodectl & MEMMODE_RCLK_GATE));
1376 seq_printf(m, "Starting frequency: P%d\n",
1377 (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
1378 seq_printf(m, "Max P-state: P%d\n",
1379 (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
1380 seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
1381 seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
1382 seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
1383 seq_printf(m, "Render standby enabled: %s\n",
1384 yesno(!(rstdbyctl & RCX_SW_EXIT)));
1385 seq_puts(m, "Current RS state: ");
1386 switch (rstdbyctl & RSX_STATUS_MASK) {
1388 seq_puts(m, "on\n");
1390 case RSX_STATUS_RC1:
1391 seq_puts(m, "RC1\n");
1393 case RSX_STATUS_RC1E:
1394 seq_puts(m, "RC1E\n");
1396 case RSX_STATUS_RS1:
1397 seq_puts(m, "RS1\n");
1399 case RSX_STATUS_RS2:
1400 seq_puts(m, "RS2 (RC6)\n");
1402 case RSX_STATUS_RS3:
1403 seq_puts(m, "RC3 (RC6+)\n");
1406 seq_puts(m, "unknown\n");
1413 static int i915_forcewake_domains(struct seq_file *m, void *data)
1415 struct drm_i915_private *i915 = node_to_i915(m->private);
1416 struct intel_uncore *uncore = &i915->uncore;
1417 struct intel_uncore_forcewake_domain *fw_domain;
1420 seq_printf(m, "user.bypass_count = %u\n",
1421 uncore->user_forcewake.count);
1423 for_each_fw_domain(fw_domain, uncore, tmp)
1424 seq_printf(m, "%s.wake_count = %u\n",
1425 intel_uncore_forcewake_domain_to_str(fw_domain->id),
1426 READ_ONCE(fw_domain->wake_count));
1431 static void print_rc6_res(struct seq_file *m,
1433 const i915_reg_t reg)
1435 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1437 seq_printf(m, "%s %u (%llu us)\n",
1438 title, I915_READ(reg),
1439 intel_rc6_residency_us(dev_priv, reg));
1442 static int vlv_drpc_info(struct seq_file *m)
1444 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1445 u32 rcctl1, pw_status;
1447 pw_status = I915_READ(VLV_GTLC_PW_STATUS);
1448 rcctl1 = I915_READ(GEN6_RC_CONTROL);
1450 seq_printf(m, "RC6 Enabled: %s\n",
1451 yesno(rcctl1 & (GEN7_RC_CTL_TO_MODE |
1452 GEN6_RC_CTL_EI_MODE(1))));
1453 seq_printf(m, "Render Power Well: %s\n",
1454 (pw_status & VLV_GTLC_PW_RENDER_STATUS_MASK) ? "Up" : "Down");
1455 seq_printf(m, "Media Power Well: %s\n",
1456 (pw_status & VLV_GTLC_PW_MEDIA_STATUS_MASK) ? "Up" : "Down");
1458 print_rc6_res(m, "Render RC6 residency since boot:", VLV_GT_RENDER_RC6);
1459 print_rc6_res(m, "Media RC6 residency since boot:", VLV_GT_MEDIA_RC6);
1461 return i915_forcewake_domains(m, NULL);
1464 static int gen6_drpc_info(struct seq_file *m)
1466 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1467 u32 gt_core_status, rcctl1, rc6vids = 0;
1468 u32 gen9_powergate_enable = 0, gen9_powergate_status = 0;
1470 gt_core_status = I915_READ_FW(GEN6_GT_CORE_STATUS);
1471 trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true);
1473 rcctl1 = I915_READ(GEN6_RC_CONTROL);
1474 if (INTEL_GEN(dev_priv) >= 9) {
1475 gen9_powergate_enable = I915_READ(GEN9_PG_ENABLE);
1476 gen9_powergate_status = I915_READ(GEN9_PWRGT_DOMAIN_STATUS);
1479 if (INTEL_GEN(dev_priv) <= 7) {
1480 mutex_lock(&dev_priv->pcu_lock);
1481 sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS,
1483 mutex_unlock(&dev_priv->pcu_lock);
1486 seq_printf(m, "RC1e Enabled: %s\n",
1487 yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
1488 seq_printf(m, "RC6 Enabled: %s\n",
1489 yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
1490 if (INTEL_GEN(dev_priv) >= 9) {
1491 seq_printf(m, "Render Well Gating Enabled: %s\n",
1492 yesno(gen9_powergate_enable & GEN9_RENDER_PG_ENABLE));
1493 seq_printf(m, "Media Well Gating Enabled: %s\n",
1494 yesno(gen9_powergate_enable & GEN9_MEDIA_PG_ENABLE));
1496 seq_printf(m, "Deep RC6 Enabled: %s\n",
1497 yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
1498 seq_printf(m, "Deepest RC6 Enabled: %s\n",
1499 yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
1500 seq_puts(m, "Current RC state: ");
1501 switch (gt_core_status & GEN6_RCn_MASK) {
1503 if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
1504 seq_puts(m, "Core Power Down\n");
1506 seq_puts(m, "on\n");
1509 seq_puts(m, "RC3\n");
1512 seq_puts(m, "RC6\n");
1515 seq_puts(m, "RC7\n");
1518 seq_puts(m, "Unknown\n");
1522 seq_printf(m, "Core Power Down: %s\n",
1523 yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
1524 if (INTEL_GEN(dev_priv) >= 9) {
1525 seq_printf(m, "Render Power Well: %s\n",
1526 (gen9_powergate_status &
1527 GEN9_PWRGT_RENDER_STATUS_MASK) ? "Up" : "Down");
1528 seq_printf(m, "Media Power Well: %s\n",
1529 (gen9_powergate_status &
1530 GEN9_PWRGT_MEDIA_STATUS_MASK) ? "Up" : "Down");
1533 /* Not exactly sure what this is */
1534 print_rc6_res(m, "RC6 \"Locked to RPn\" residency since boot:",
1535 GEN6_GT_GFX_RC6_LOCKED);
1536 print_rc6_res(m, "RC6 residency since boot:", GEN6_GT_GFX_RC6);
1537 print_rc6_res(m, "RC6+ residency since boot:", GEN6_GT_GFX_RC6p);
1538 print_rc6_res(m, "RC6++ residency since boot:", GEN6_GT_GFX_RC6pp);
1540 if (INTEL_GEN(dev_priv) <= 7) {
1541 seq_printf(m, "RC6 voltage: %dmV\n",
1542 GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
1543 seq_printf(m, "RC6+ voltage: %dmV\n",
1544 GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
1545 seq_printf(m, "RC6++ voltage: %dmV\n",
1546 GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
1549 return i915_forcewake_domains(m, NULL);
1552 static int i915_drpc_info(struct seq_file *m, void *unused)
1554 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1555 intel_wakeref_t wakeref;
1558 with_intel_runtime_pm(dev_priv, wakeref) {
1559 if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
1560 err = vlv_drpc_info(m);
1561 else if (INTEL_GEN(dev_priv) >= 6)
1562 err = gen6_drpc_info(m);
1564 err = ironlake_drpc_info(m);
1570 static int i915_frontbuffer_tracking(struct seq_file *m, void *unused)
1572 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1574 seq_printf(m, "FB tracking busy bits: 0x%08x\n",
1575 dev_priv->fb_tracking.busy_bits);
1577 seq_printf(m, "FB tracking flip bits: 0x%08x\n",
1578 dev_priv->fb_tracking.flip_bits);
1583 static int i915_fbc_status(struct seq_file *m, void *unused)
1585 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1586 struct intel_fbc *fbc = &dev_priv->fbc;
1587 intel_wakeref_t wakeref;
1589 if (!HAS_FBC(dev_priv))
1592 wakeref = intel_runtime_pm_get(dev_priv);
1593 mutex_lock(&fbc->lock);
1595 if (intel_fbc_is_active(dev_priv))
1596 seq_puts(m, "FBC enabled\n");
1598 seq_printf(m, "FBC disabled: %s\n", fbc->no_fbc_reason);
1600 if (intel_fbc_is_active(dev_priv)) {
1603 if (INTEL_GEN(dev_priv) >= 8)
1604 mask = I915_READ(IVB_FBC_STATUS2) & BDW_FBC_COMP_SEG_MASK;
1605 else if (INTEL_GEN(dev_priv) >= 7)
1606 mask = I915_READ(IVB_FBC_STATUS2) & IVB_FBC_COMP_SEG_MASK;
1607 else if (INTEL_GEN(dev_priv) >= 5)
1608 mask = I915_READ(ILK_DPFC_STATUS) & ILK_DPFC_COMP_SEG_MASK;
1609 else if (IS_G4X(dev_priv))
1610 mask = I915_READ(DPFC_STATUS) & DPFC_COMP_SEG_MASK;
1612 mask = I915_READ(FBC_STATUS) & (FBC_STAT_COMPRESSING |
1613 FBC_STAT_COMPRESSED);
1615 seq_printf(m, "Compressing: %s\n", yesno(mask));
1618 mutex_unlock(&fbc->lock);
1619 intel_runtime_pm_put(dev_priv, wakeref);
1624 static int i915_fbc_false_color_get(void *data, u64 *val)
1626 struct drm_i915_private *dev_priv = data;
1628 if (INTEL_GEN(dev_priv) < 7 || !HAS_FBC(dev_priv))
1631 *val = dev_priv->fbc.false_color;
1636 static int i915_fbc_false_color_set(void *data, u64 val)
1638 struct drm_i915_private *dev_priv = data;
1641 if (INTEL_GEN(dev_priv) < 7 || !HAS_FBC(dev_priv))
1644 mutex_lock(&dev_priv->fbc.lock);
1646 reg = I915_READ(ILK_DPFC_CONTROL);
1647 dev_priv->fbc.false_color = val;
1649 I915_WRITE(ILK_DPFC_CONTROL, val ?
1650 (reg | FBC_CTL_FALSE_COLOR) :
1651 (reg & ~FBC_CTL_FALSE_COLOR));
1653 mutex_unlock(&dev_priv->fbc.lock);
1657 DEFINE_SIMPLE_ATTRIBUTE(i915_fbc_false_color_fops,
1658 i915_fbc_false_color_get, i915_fbc_false_color_set,
1661 static int i915_ips_status(struct seq_file *m, void *unused)
1663 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1664 intel_wakeref_t wakeref;
1666 if (!HAS_IPS(dev_priv))
1669 wakeref = intel_runtime_pm_get(dev_priv);
1671 seq_printf(m, "Enabled by kernel parameter: %s\n",
1672 yesno(i915_modparams.enable_ips));
1674 if (INTEL_GEN(dev_priv) >= 8) {
1675 seq_puts(m, "Currently: unknown\n");
1677 if (I915_READ(IPS_CTL) & IPS_ENABLE)
1678 seq_puts(m, "Currently: enabled\n");
1680 seq_puts(m, "Currently: disabled\n");
1683 intel_runtime_pm_put(dev_priv, wakeref);
1688 static int i915_sr_status(struct seq_file *m, void *unused)
1690 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1691 intel_wakeref_t wakeref;
1692 bool sr_enabled = false;
1694 wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_INIT);
1696 if (INTEL_GEN(dev_priv) >= 9)
1697 /* no global SR status; inspect per-plane WM */;
1698 else if (HAS_PCH_SPLIT(dev_priv))
1699 sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
1700 else if (IS_I965GM(dev_priv) || IS_G4X(dev_priv) ||
1701 IS_I945G(dev_priv) || IS_I945GM(dev_priv))
1702 sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
1703 else if (IS_I915GM(dev_priv))
1704 sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
1705 else if (IS_PINEVIEW(dev_priv))
1706 sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
1707 else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
1708 sr_enabled = I915_READ(FW_BLC_SELF_VLV) & FW_CSPWRDWNEN;
1710 intel_display_power_put(dev_priv, POWER_DOMAIN_INIT, wakeref);
1712 seq_printf(m, "self-refresh: %s\n", enableddisabled(sr_enabled));
1717 static int i915_emon_status(struct seq_file *m, void *unused)
1719 struct drm_i915_private *i915 = node_to_i915(m->private);
1720 intel_wakeref_t wakeref;
1722 if (!IS_GEN(i915, 5))
1725 with_intel_runtime_pm(i915, wakeref) {
1726 unsigned long temp, chipset, gfx;
1728 temp = i915_mch_val(i915);
1729 chipset = i915_chipset_val(i915);
1730 gfx = i915_gfx_val(i915);
1732 seq_printf(m, "GMCH temp: %ld\n", temp);
1733 seq_printf(m, "Chipset power: %ld\n", chipset);
1734 seq_printf(m, "GFX power: %ld\n", gfx);
1735 seq_printf(m, "Total power: %ld\n", chipset + gfx);
1741 static int i915_ring_freq_table(struct seq_file *m, void *unused)
1743 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1744 struct intel_rps *rps = &dev_priv->gt_pm.rps;
1745 unsigned int max_gpu_freq, min_gpu_freq;
1746 intel_wakeref_t wakeref;
1747 int gpu_freq, ia_freq;
1750 if (!HAS_LLC(dev_priv))
1753 wakeref = intel_runtime_pm_get(dev_priv);
1755 ret = mutex_lock_interruptible(&dev_priv->pcu_lock);
1759 min_gpu_freq = rps->min_freq;
1760 max_gpu_freq = rps->max_freq;
1761 if (IS_GEN9_BC(dev_priv) || INTEL_GEN(dev_priv) >= 10) {
1762 /* Convert GT frequency to 50 HZ units */
1763 min_gpu_freq /= GEN9_FREQ_SCALER;
1764 max_gpu_freq /= GEN9_FREQ_SCALER;
1767 seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
1769 for (gpu_freq = min_gpu_freq; gpu_freq <= max_gpu_freq; gpu_freq++) {
1771 sandybridge_pcode_read(dev_priv,
1772 GEN6_PCODE_READ_MIN_FREQ_TABLE,
1774 seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
1775 intel_gpu_freq(dev_priv, (gpu_freq *
1776 (IS_GEN9_BC(dev_priv) ||
1777 INTEL_GEN(dev_priv) >= 10 ?
1778 GEN9_FREQ_SCALER : 1))),
1779 ((ia_freq >> 0) & 0xff) * 100,
1780 ((ia_freq >> 8) & 0xff) * 100);
1783 mutex_unlock(&dev_priv->pcu_lock);
1786 intel_runtime_pm_put(dev_priv, wakeref);
1790 static int i915_opregion(struct seq_file *m, void *unused)
1792 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1793 struct drm_device *dev = &dev_priv->drm;
1794 struct intel_opregion *opregion = &dev_priv->opregion;
1797 ret = mutex_lock_interruptible(&dev->struct_mutex);
1801 if (opregion->header)
1802 seq_write(m, opregion->header, OPREGION_SIZE);
1804 mutex_unlock(&dev->struct_mutex);
1810 static int i915_vbt(struct seq_file *m, void *unused)
1812 struct intel_opregion *opregion = &node_to_i915(m->private)->opregion;
1815 seq_write(m, opregion->vbt, opregion->vbt_size);
1820 static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
1822 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1823 struct drm_device *dev = &dev_priv->drm;
1824 struct intel_framebuffer *fbdev_fb = NULL;
1825 struct drm_framebuffer *drm_fb;
1828 ret = mutex_lock_interruptible(&dev->struct_mutex);
1832 #ifdef CONFIG_DRM_FBDEV_EMULATION
1833 if (dev_priv->fbdev && dev_priv->fbdev->helper.fb) {
1834 fbdev_fb = to_intel_framebuffer(dev_priv->fbdev->helper.fb);
1836 seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ",
1837 fbdev_fb->base.width,
1838 fbdev_fb->base.height,
1839 fbdev_fb->base.format->depth,
1840 fbdev_fb->base.format->cpp[0] * 8,
1841 fbdev_fb->base.modifier,
1842 drm_framebuffer_read_refcount(&fbdev_fb->base));
1843 describe_obj(m, intel_fb_obj(&fbdev_fb->base));
1848 mutex_lock(&dev->mode_config.fb_lock);
1849 drm_for_each_fb(drm_fb, dev) {
1850 struct intel_framebuffer *fb = to_intel_framebuffer(drm_fb);
1854 seq_printf(m, "user size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ",
1857 fb->base.format->depth,
1858 fb->base.format->cpp[0] * 8,
1860 drm_framebuffer_read_refcount(&fb->base));
1861 describe_obj(m, intel_fb_obj(&fb->base));
1864 mutex_unlock(&dev->mode_config.fb_lock);
1865 mutex_unlock(&dev->struct_mutex);
1870 static void describe_ctx_ring(struct seq_file *m, struct intel_ring *ring)
1872 seq_printf(m, " (ringbuffer, space: %d, head: %u, tail: %u, emit: %u)",
1873 ring->space, ring->head, ring->tail, ring->emit);
1876 static int i915_context_status(struct seq_file *m, void *unused)
1878 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1879 struct drm_device *dev = &dev_priv->drm;
1880 struct i915_gem_context *ctx;
1883 ret = mutex_lock_interruptible(&dev->struct_mutex);
1887 list_for_each_entry(ctx, &dev_priv->contexts.list, link) {
1888 struct intel_context *ce;
1890 seq_puts(m, "HW context ");
1891 if (!list_empty(&ctx->hw_id_link))
1892 seq_printf(m, "%x [pin %u]", ctx->hw_id,
1893 atomic_read(&ctx->hw_id_pin_count));
1895 struct task_struct *task;
1897 task = get_pid_task(ctx->pid, PIDTYPE_PID);
1899 seq_printf(m, "(%s [%d]) ",
1900 task->comm, task->pid);
1901 put_task_struct(task);
1903 } else if (IS_ERR(ctx->file_priv)) {
1904 seq_puts(m, "(deleted) ");
1906 seq_puts(m, "(kernel) ");
1909 seq_putc(m, ctx->remap_slice ? 'R' : 'r');
1912 list_for_each_entry(ce, &ctx->active_engines, active_link) {
1913 seq_printf(m, "%s: ", ce->engine->name);
1915 describe_obj(m, ce->state->obj);
1917 describe_ctx_ring(m, ce->ring);
1924 mutex_unlock(&dev->struct_mutex);
1929 static const char *swizzle_string(unsigned swizzle)
1932 case I915_BIT_6_SWIZZLE_NONE:
1934 case I915_BIT_6_SWIZZLE_9:
1936 case I915_BIT_6_SWIZZLE_9_10:
1937 return "bit9/bit10";
1938 case I915_BIT_6_SWIZZLE_9_11:
1939 return "bit9/bit11";
1940 case I915_BIT_6_SWIZZLE_9_10_11:
1941 return "bit9/bit10/bit11";
1942 case I915_BIT_6_SWIZZLE_9_17:
1943 return "bit9/bit17";
1944 case I915_BIT_6_SWIZZLE_9_10_17:
1945 return "bit9/bit10/bit17";
1946 case I915_BIT_6_SWIZZLE_UNKNOWN:
1953 static int i915_swizzle_info(struct seq_file *m, void *data)
1955 struct drm_i915_private *dev_priv = node_to_i915(m->private);
1956 intel_wakeref_t wakeref;
1958 wakeref = intel_runtime_pm_get(dev_priv);
1960 seq_printf(m, "bit6 swizzle for X-tiling = %s\n",
1961 swizzle_string(dev_priv->mm.bit_6_swizzle_x));
1962 seq_printf(m, "bit6 swizzle for Y-tiling = %s\n",
1963 swizzle_string(dev_priv->mm.bit_6_swizzle_y));
1965 if (IS_GEN_RANGE(dev_priv, 3, 4)) {
1966 seq_printf(m, "DDC = 0x%08x\n",
1968 seq_printf(m, "DDC2 = 0x%08x\n",
1970 seq_printf(m, "C0DRB3 = 0x%04x\n",
1971 I915_READ16(C0DRB3));
1972 seq_printf(m, "C1DRB3 = 0x%04x\n",
1973 I915_READ16(C1DRB3));
1974 } else if (INTEL_GEN(dev_priv) >= 6) {
1975 seq_printf(m, "MAD_DIMM_C0 = 0x%08x\n",
1976 I915_READ(MAD_DIMM_C0));
1977 seq_printf(m, "MAD_DIMM_C1 = 0x%08x\n",
1978 I915_READ(MAD_DIMM_C1));
1979 seq_printf(m, "MAD_DIMM_C2 = 0x%08x\n",
1980 I915_READ(MAD_DIMM_C2));
1981 seq_printf(m, "TILECTL = 0x%08x\n",
1982 I915_READ(TILECTL));
1983 if (INTEL_GEN(dev_priv) >= 8)
1984 seq_printf(m, "GAMTARBMODE = 0x%08x\n",
1985 I915_READ(GAMTARBMODE));
1987 seq_printf(m, "ARB_MODE = 0x%08x\n",
1988 I915_READ(ARB_MODE));
1989 seq_printf(m, "DISP_ARB_CTL = 0x%08x\n",
1990 I915_READ(DISP_ARB_CTL));
1993 if (dev_priv->quirks & QUIRK_PIN_SWIZZLED_PAGES)
1994 seq_puts(m, "L-shaped memory detected\n");
1996 intel_runtime_pm_put(dev_priv, wakeref);
2001 static const char *rps_power_to_str(unsigned int power)
2003 static const char * const strings[] = {
2004 [LOW_POWER] = "low power",
2005 [BETWEEN] = "mixed",
2006 [HIGH_POWER] = "high power",
2009 if (power >= ARRAY_SIZE(strings) || !strings[power])
2012 return strings[power];
2015 static int i915_rps_boost_info(struct seq_file *m, void *data)
2017 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2018 struct intel_rps *rps = &dev_priv->gt_pm.rps;
2019 u32 act_freq = rps->cur_freq;
2020 intel_wakeref_t wakeref;
2022 with_intel_runtime_pm_if_in_use(dev_priv, wakeref) {
2023 if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
2024 mutex_lock(&dev_priv->pcu_lock);
2025 act_freq = vlv_punit_read(dev_priv,
2026 PUNIT_REG_GPU_FREQ_STS);
2027 act_freq = (act_freq >> 8) & 0xff;
2028 mutex_unlock(&dev_priv->pcu_lock);
2030 act_freq = intel_get_cagf(dev_priv,
2031 I915_READ(GEN6_RPSTAT1));
2035 seq_printf(m, "RPS enabled? %d\n", rps->enabled);
2036 seq_printf(m, "GPU busy? %s [%d requests]\n",
2037 yesno(dev_priv->gt.awake), dev_priv->gt.active_requests);
2038 seq_printf(m, "Boosts outstanding? %d\n",
2039 atomic_read(&rps->num_waiters));
2040 seq_printf(m, "Interactive? %d\n", READ_ONCE(rps->power.interactive));
2041 seq_printf(m, "Frequency requested %d, actual %d\n",
2042 intel_gpu_freq(dev_priv, rps->cur_freq),
2043 intel_gpu_freq(dev_priv, act_freq));
2044 seq_printf(m, " min hard:%d, soft:%d; max soft:%d, hard:%d\n",
2045 intel_gpu_freq(dev_priv, rps->min_freq),
2046 intel_gpu_freq(dev_priv, rps->min_freq_softlimit),
2047 intel_gpu_freq(dev_priv, rps->max_freq_softlimit),
2048 intel_gpu_freq(dev_priv, rps->max_freq));
2049 seq_printf(m, " idle:%d, efficient:%d, boost:%d\n",
2050 intel_gpu_freq(dev_priv, rps->idle_freq),
2051 intel_gpu_freq(dev_priv, rps->efficient_freq),
2052 intel_gpu_freq(dev_priv, rps->boost_freq));
2054 seq_printf(m, "Wait boosts: %d\n", atomic_read(&rps->boosts));
2056 if (INTEL_GEN(dev_priv) >= 6 &&
2058 dev_priv->gt.active_requests) {
2060 u32 rpdown, rpdownei;
2062 intel_uncore_forcewake_get(&dev_priv->uncore, FORCEWAKE_ALL);
2063 rpup = I915_READ_FW(GEN6_RP_CUR_UP) & GEN6_RP_EI_MASK;
2064 rpupei = I915_READ_FW(GEN6_RP_CUR_UP_EI) & GEN6_RP_EI_MASK;
2065 rpdown = I915_READ_FW(GEN6_RP_CUR_DOWN) & GEN6_RP_EI_MASK;
2066 rpdownei = I915_READ_FW(GEN6_RP_CUR_DOWN_EI) & GEN6_RP_EI_MASK;
2067 intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL);
2069 seq_printf(m, "\nRPS Autotuning (current \"%s\" window):\n",
2070 rps_power_to_str(rps->power.mode));
2071 seq_printf(m, " Avg. up: %d%% [above threshold? %d%%]\n",
2072 rpup && rpupei ? 100 * rpup / rpupei : 0,
2073 rps->power.up_threshold);
2074 seq_printf(m, " Avg. down: %d%% [below threshold? %d%%]\n",
2075 rpdown && rpdownei ? 100 * rpdown / rpdownei : 0,
2076 rps->power.down_threshold);
2078 seq_puts(m, "\nRPS Autotuning inactive\n");
2084 static int i915_llc(struct seq_file *m, void *data)
2086 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2087 const bool edram = INTEL_GEN(dev_priv) > 8;
2089 seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(dev_priv)));
2090 seq_printf(m, "%s: %lluMB\n", edram ? "eDRAM" : "eLLC",
2091 intel_uncore_edram_size(dev_priv)/1024/1024);
2096 static int i915_huc_load_status_info(struct seq_file *m, void *data)
2098 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2099 intel_wakeref_t wakeref;
2100 struct drm_printer p;
2102 if (!HAS_HUC(dev_priv))
2105 p = drm_seq_file_printer(m);
2106 intel_uc_fw_dump(&dev_priv->huc.fw, &p);
2108 with_intel_runtime_pm(dev_priv, wakeref)
2109 seq_printf(m, "\nHuC status 0x%08x:\n", I915_READ(HUC_STATUS2));
2114 static int i915_guc_load_status_info(struct seq_file *m, void *data)
2116 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2117 intel_wakeref_t wakeref;
2118 struct drm_printer p;
2120 if (!HAS_GUC(dev_priv))
2123 p = drm_seq_file_printer(m);
2124 intel_uc_fw_dump(&dev_priv->guc.fw, &p);
2126 with_intel_runtime_pm(dev_priv, wakeref) {
2127 u32 tmp = I915_READ(GUC_STATUS);
2130 seq_printf(m, "\nGuC status 0x%08x:\n", tmp);
2131 seq_printf(m, "\tBootrom status = 0x%x\n",
2132 (tmp & GS_BOOTROM_MASK) >> GS_BOOTROM_SHIFT);
2133 seq_printf(m, "\tuKernel status = 0x%x\n",
2134 (tmp & GS_UKERNEL_MASK) >> GS_UKERNEL_SHIFT);
2135 seq_printf(m, "\tMIA Core status = 0x%x\n",
2136 (tmp & GS_MIA_MASK) >> GS_MIA_SHIFT);
2137 seq_puts(m, "\nScratch registers:\n");
2138 for (i = 0; i < 16; i++) {
2139 seq_printf(m, "\t%2d: \t0x%x\n",
2140 i, I915_READ(SOFT_SCRATCH(i)));
2148 stringify_guc_log_type(enum guc_log_buffer_type type)
2151 case GUC_ISR_LOG_BUFFER:
2153 case GUC_DPC_LOG_BUFFER:
2155 case GUC_CRASH_DUMP_LOG_BUFFER:
2164 static void i915_guc_log_info(struct seq_file *m,
2165 struct drm_i915_private *dev_priv)
2167 struct intel_guc_log *log = &dev_priv->guc.log;
2168 enum guc_log_buffer_type type;
2170 if (!intel_guc_log_relay_enabled(log)) {
2171 seq_puts(m, "GuC log relay disabled\n");
2175 seq_puts(m, "GuC logging stats:\n");
2177 seq_printf(m, "\tRelay full count: %u\n",
2178 log->relay.full_count);
2180 for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
2181 seq_printf(m, "\t%s:\tflush count %10u, overflow count %10u\n",
2182 stringify_guc_log_type(type),
2183 log->stats[type].flush,
2184 log->stats[type].sampled_overflow);
2188 static void i915_guc_client_info(struct seq_file *m,
2189 struct drm_i915_private *dev_priv,
2190 struct intel_guc_client *client)
2192 struct intel_engine_cs *engine;
2193 enum intel_engine_id id;
2196 seq_printf(m, "\tPriority %d, GuC stage index: %u, PD offset 0x%x\n",
2197 client->priority, client->stage_id, client->proc_desc_offset);
2198 seq_printf(m, "\tDoorbell id %d, offset: 0x%lx\n",
2199 client->doorbell_id, client->doorbell_offset);
2201 for_each_engine(engine, dev_priv, id) {
2202 u64 submissions = client->submissions[id];
2204 seq_printf(m, "\tSubmissions: %llu %s\n",
2205 submissions, engine->name);
2207 seq_printf(m, "\tTotal: %llu\n", tot);
2210 static int i915_guc_info(struct seq_file *m, void *data)
2212 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2213 const struct intel_guc *guc = &dev_priv->guc;
2215 if (!USES_GUC(dev_priv))
2218 i915_guc_log_info(m, dev_priv);
2220 if (!USES_GUC_SUBMISSION(dev_priv))
2223 GEM_BUG_ON(!guc->execbuf_client);
2225 seq_printf(m, "\nDoorbell map:\n");
2226 seq_printf(m, "\t%*pb\n", GUC_NUM_DOORBELLS, guc->doorbell_bitmap);
2227 seq_printf(m, "Doorbell next cacheline: 0x%x\n", guc->db_cacheline);
2229 seq_printf(m, "\nGuC execbuf client @ %p:\n", guc->execbuf_client);
2230 i915_guc_client_info(m, dev_priv, guc->execbuf_client);
2231 if (guc->preempt_client) {
2232 seq_printf(m, "\nGuC preempt client @ %p:\n",
2233 guc->preempt_client);
2234 i915_guc_client_info(m, dev_priv, guc->preempt_client);
2237 /* Add more as required ... */
2242 static int i915_guc_stage_pool(struct seq_file *m, void *data)
2244 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2245 const struct intel_guc *guc = &dev_priv->guc;
2246 struct guc_stage_desc *desc = guc->stage_desc_pool_vaddr;
2247 struct intel_guc_client *client = guc->execbuf_client;
2251 if (!USES_GUC_SUBMISSION(dev_priv))
2254 for (index = 0; index < GUC_MAX_STAGE_DESCRIPTORS; index++, desc++) {
2255 struct intel_engine_cs *engine;
2257 if (!(desc->attribute & GUC_STAGE_DESC_ATTR_ACTIVE))
2260 seq_printf(m, "GuC stage descriptor %u:\n", index);
2261 seq_printf(m, "\tIndex: %u\n", desc->stage_id);
2262 seq_printf(m, "\tAttribute: 0x%x\n", desc->attribute);
2263 seq_printf(m, "\tPriority: %d\n", desc->priority);
2264 seq_printf(m, "\tDoorbell id: %d\n", desc->db_id);
2265 seq_printf(m, "\tEngines used: 0x%x\n",
2266 desc->engines_used);
2267 seq_printf(m, "\tDoorbell trigger phy: 0x%llx, cpu: 0x%llx, uK: 0x%x\n",
2268 desc->db_trigger_phy,
2269 desc->db_trigger_cpu,
2270 desc->db_trigger_uk);
2271 seq_printf(m, "\tProcess descriptor: 0x%x\n",
2272 desc->process_desc);
2273 seq_printf(m, "\tWorkqueue address: 0x%x, size: 0x%x\n",
2274 desc->wq_addr, desc->wq_size);
2277 for_each_engine_masked(engine, dev_priv, client->engines, tmp) {
2278 u32 guc_engine_id = engine->guc_id;
2279 struct guc_execlist_context *lrc =
2280 &desc->lrc[guc_engine_id];
2282 seq_printf(m, "\t%s LRC:\n", engine->name);
2283 seq_printf(m, "\t\tContext desc: 0x%x\n",
2285 seq_printf(m, "\t\tContext id: 0x%x\n", lrc->context_id);
2286 seq_printf(m, "\t\tLRCA: 0x%x\n", lrc->ring_lrca);
2287 seq_printf(m, "\t\tRing begin: 0x%x\n", lrc->ring_begin);
2288 seq_printf(m, "\t\tRing end: 0x%x\n", lrc->ring_end);
2296 static int i915_guc_log_dump(struct seq_file *m, void *data)
2298 struct drm_info_node *node = m->private;
2299 struct drm_i915_private *dev_priv = node_to_i915(node);
2300 bool dump_load_err = !!node->info_ent->data;
2301 struct drm_i915_gem_object *obj = NULL;
2305 if (!HAS_GUC(dev_priv))
2309 obj = dev_priv->guc.load_err_log;
2310 else if (dev_priv->guc.log.vma)
2311 obj = dev_priv->guc.log.vma->obj;
2316 log = i915_gem_object_pin_map(obj, I915_MAP_WC);
2318 DRM_DEBUG("Failed to pin object\n");
2319 seq_puts(m, "(log data unaccessible)\n");
2320 return PTR_ERR(log);
2323 for (i = 0; i < obj->base.size / sizeof(u32); i += 4)
2324 seq_printf(m, "0x%08x 0x%08x 0x%08x 0x%08x\n",
2325 *(log + i), *(log + i + 1),
2326 *(log + i + 2), *(log + i + 3));
2330 i915_gem_object_unpin_map(obj);
2335 static int i915_guc_log_level_get(void *data, u64 *val)
2337 struct drm_i915_private *dev_priv = data;
2339 if (!USES_GUC(dev_priv))
2342 *val = intel_guc_log_get_level(&dev_priv->guc.log);
2347 static int i915_guc_log_level_set(void *data, u64 val)
2349 struct drm_i915_private *dev_priv = data;
2351 if (!USES_GUC(dev_priv))
2354 return intel_guc_log_set_level(&dev_priv->guc.log, val);
2357 DEFINE_SIMPLE_ATTRIBUTE(i915_guc_log_level_fops,
2358 i915_guc_log_level_get, i915_guc_log_level_set,
2361 static int i915_guc_log_relay_open(struct inode *inode, struct file *file)
2363 struct drm_i915_private *dev_priv = inode->i_private;
2365 if (!USES_GUC(dev_priv))
2368 file->private_data = &dev_priv->guc.log;
2370 return intel_guc_log_relay_open(&dev_priv->guc.log);
2374 i915_guc_log_relay_write(struct file *filp,
2375 const char __user *ubuf,
2379 struct intel_guc_log *log = filp->private_data;
2381 intel_guc_log_relay_flush(log);
2386 static int i915_guc_log_relay_release(struct inode *inode, struct file *file)
2388 struct drm_i915_private *dev_priv = inode->i_private;
2390 intel_guc_log_relay_close(&dev_priv->guc.log);
2395 static const struct file_operations i915_guc_log_relay_fops = {
2396 .owner = THIS_MODULE,
2397 .open = i915_guc_log_relay_open,
2398 .write = i915_guc_log_relay_write,
2399 .release = i915_guc_log_relay_release,
2402 static int i915_psr_sink_status_show(struct seq_file *m, void *data)
2405 static const char * const sink_status[] = {
2407 "transition to active, capture and display",
2408 "active, display from RFB",
2409 "active, capture and display on sink device timings",
2410 "transition to inactive, capture and display, timing re-sync",
2413 "sink internal error",
2415 struct drm_connector *connector = m->private;
2416 struct drm_i915_private *dev_priv = to_i915(connector->dev);
2417 struct intel_dp *intel_dp =
2418 enc_to_intel_dp(&intel_attached_encoder(connector)->base);
2421 if (!CAN_PSR(dev_priv)) {
2422 seq_puts(m, "PSR Unsupported\n");
2426 if (connector->status != connector_status_connected)
2429 ret = drm_dp_dpcd_readb(&intel_dp->aux, DP_PSR_STATUS, &val);
2432 const char *str = "unknown";
2434 val &= DP_PSR_SINK_STATE_MASK;
2435 if (val < ARRAY_SIZE(sink_status))
2436 str = sink_status[val];
2437 seq_printf(m, "Sink PSR status: 0x%x [%s]\n", val, str);
2444 DEFINE_SHOW_ATTRIBUTE(i915_psr_sink_status);
2447 psr_source_status(struct drm_i915_private *dev_priv, struct seq_file *m)
2449 u32 val, status_val;
2450 const char *status = "unknown";
2452 if (dev_priv->psr.psr2_enabled) {
2453 static const char * const live_status[] = {
2466 val = I915_READ(EDP_PSR2_STATUS);
2467 status_val = (val & EDP_PSR2_STATUS_STATE_MASK) >>
2468 EDP_PSR2_STATUS_STATE_SHIFT;
2469 if (status_val < ARRAY_SIZE(live_status))
2470 status = live_status[status_val];
2472 static const char * const live_status[] = {
2482 val = I915_READ(EDP_PSR_STATUS);
2483 status_val = (val & EDP_PSR_STATUS_STATE_MASK) >>
2484 EDP_PSR_STATUS_STATE_SHIFT;
2485 if (status_val < ARRAY_SIZE(live_status))
2486 status = live_status[status_val];
2489 seq_printf(m, "Source PSR status: %s [0x%08x]\n", status, val);
2492 static int i915_edp_psr_status(struct seq_file *m, void *data)
2494 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2495 struct i915_psr *psr = &dev_priv->psr;
2496 intel_wakeref_t wakeref;
2501 if (!HAS_PSR(dev_priv))
2504 seq_printf(m, "Sink support: %s", yesno(psr->sink_support));
2506 seq_printf(m, " [0x%02x]", psr->dp->psr_dpcd[0]);
2509 if (!psr->sink_support)
2512 wakeref = intel_runtime_pm_get(dev_priv);
2513 mutex_lock(&psr->lock);
2516 status = psr->psr2_enabled ? "PSR2 enabled" : "PSR1 enabled";
2518 status = "disabled";
2519 seq_printf(m, "PSR mode: %s\n", status);
2524 if (psr->psr2_enabled) {
2525 val = I915_READ(EDP_PSR2_CTL);
2526 enabled = val & EDP_PSR2_ENABLE;
2528 val = I915_READ(EDP_PSR_CTL);
2529 enabled = val & EDP_PSR_ENABLE;
2531 seq_printf(m, "Source PSR ctl: %s [0x%08x]\n",
2532 enableddisabled(enabled), val);
2533 psr_source_status(dev_priv, m);
2534 seq_printf(m, "Busy frontbuffer bits: 0x%08x\n",
2535 psr->busy_frontbuffer_bits);
2538 * SKL+ Perf counter is reset to 0 everytime DC state is entered
2540 if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
2541 val = I915_READ(EDP_PSR_PERF_CNT) & EDP_PSR_PERF_CNT_MASK;
2542 seq_printf(m, "Performance counter: %u\n", val);
2545 if (psr->debug & I915_PSR_DEBUG_IRQ) {
2546 seq_printf(m, "Last attempted entry at: %lld\n",
2547 psr->last_entry_attempt);
2548 seq_printf(m, "Last exit at: %lld\n", psr->last_exit);
2551 if (psr->psr2_enabled) {
2552 u32 su_frames_val[3];
2556 * Reading all 3 registers before hand to minimize crossing a
2557 * frame boundary between register reads
2559 for (frame = 0; frame < PSR2_SU_STATUS_FRAMES; frame += 3)
2560 su_frames_val[frame / 3] = I915_READ(PSR2_SU_STATUS(frame));
2562 seq_puts(m, "Frame:\tPSR2 SU blocks:\n");
2564 for (frame = 0; frame < PSR2_SU_STATUS_FRAMES; frame++) {
2567 su_blocks = su_frames_val[frame / 3] &
2568 PSR2_SU_STATUS_MASK(frame);
2569 su_blocks = su_blocks >> PSR2_SU_STATUS_SHIFT(frame);
2570 seq_printf(m, "%d\t%d\n", frame, su_blocks);
2575 mutex_unlock(&psr->lock);
2576 intel_runtime_pm_put(dev_priv, wakeref);
2582 i915_edp_psr_debug_set(void *data, u64 val)
2584 struct drm_i915_private *dev_priv = data;
2585 intel_wakeref_t wakeref;
2588 if (!CAN_PSR(dev_priv))
2591 DRM_DEBUG_KMS("Setting PSR debug to %llx\n", val);
2593 wakeref = intel_runtime_pm_get(dev_priv);
2595 ret = intel_psr_debug_set(dev_priv, val);
2597 intel_runtime_pm_put(dev_priv, wakeref);
2603 i915_edp_psr_debug_get(void *data, u64 *val)
2605 struct drm_i915_private *dev_priv = data;
2607 if (!CAN_PSR(dev_priv))
2610 *val = READ_ONCE(dev_priv->psr.debug);
2614 DEFINE_SIMPLE_ATTRIBUTE(i915_edp_psr_debug_fops,
2615 i915_edp_psr_debug_get, i915_edp_psr_debug_set,
2618 static int i915_energy_uJ(struct seq_file *m, void *data)
2620 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2621 unsigned long long power;
2622 intel_wakeref_t wakeref;
2625 if (INTEL_GEN(dev_priv) < 6)
2628 if (rdmsrl_safe(MSR_RAPL_POWER_UNIT, &power))
2631 units = (power & 0x1f00) >> 8;
2632 with_intel_runtime_pm(dev_priv, wakeref)
2633 power = I915_READ(MCH_SECP_NRG_STTS);
2635 power = (1000000 * power) >> units; /* convert to uJ */
2636 seq_printf(m, "%llu", power);
2641 static int i915_runtime_pm_status(struct seq_file *m, void *unused)
2643 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2644 struct pci_dev *pdev = dev_priv->drm.pdev;
2646 if (!HAS_RUNTIME_PM(dev_priv))
2647 seq_puts(m, "Runtime power management not supported\n");
2649 seq_printf(m, "Runtime power status: %s\n",
2650 enableddisabled(!dev_priv->power_domains.wakeref));
2652 seq_printf(m, "GPU idle: %s\n", yesno(!dev_priv->gt.awake));
2653 seq_printf(m, "IRQs disabled: %s\n",
2654 yesno(!intel_irqs_enabled(dev_priv)));
2656 seq_printf(m, "Usage count: %d\n",
2657 atomic_read(&dev_priv->drm.dev->power.usage_count));
2659 seq_printf(m, "Device Power Management (CONFIG_PM) disabled\n");
2661 seq_printf(m, "PCI device power state: %s [%d]\n",
2662 pci_power_name(pdev->current_state),
2663 pdev->current_state);
2665 if (IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)) {
2666 struct drm_printer p = drm_seq_file_printer(m);
2668 print_intel_runtime_pm_wakeref(dev_priv, &p);
2674 static int i915_power_domain_info(struct seq_file *m, void *unused)
2676 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2677 struct i915_power_domains *power_domains = &dev_priv->power_domains;
2680 mutex_lock(&power_domains->lock);
2682 seq_printf(m, "%-25s %s\n", "Power well/domain", "Use count");
2683 for (i = 0; i < power_domains->power_well_count; i++) {
2684 struct i915_power_well *power_well;
2685 enum intel_display_power_domain power_domain;
2687 power_well = &power_domains->power_wells[i];
2688 seq_printf(m, "%-25s %d\n", power_well->desc->name,
2691 for_each_power_domain(power_domain, power_well->desc->domains)
2692 seq_printf(m, " %-23s %d\n",
2693 intel_display_power_domain_str(power_domain),
2694 power_domains->domain_use_count[power_domain]);
2697 mutex_unlock(&power_domains->lock);
2702 static int i915_dmc_info(struct seq_file *m, void *unused)
2704 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2705 intel_wakeref_t wakeref;
2706 struct intel_csr *csr;
2708 if (!HAS_CSR(dev_priv))
2711 csr = &dev_priv->csr;
2713 wakeref = intel_runtime_pm_get(dev_priv);
2715 seq_printf(m, "fw loaded: %s\n", yesno(csr->dmc_payload != NULL));
2716 seq_printf(m, "path: %s\n", csr->fw_path);
2718 if (!csr->dmc_payload)
2721 seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version),
2722 CSR_VERSION_MINOR(csr->version));
2724 if (WARN_ON(INTEL_GEN(dev_priv) > 11))
2727 seq_printf(m, "DC3 -> DC5 count: %d\n",
2728 I915_READ(IS_BROXTON(dev_priv) ? BXT_CSR_DC3_DC5_COUNT :
2729 SKL_CSR_DC3_DC5_COUNT));
2730 if (!IS_GEN9_LP(dev_priv))
2731 seq_printf(m, "DC5 -> DC6 count: %d\n",
2732 I915_READ(SKL_CSR_DC5_DC6_COUNT));
2735 seq_printf(m, "program base: 0x%08x\n", I915_READ(CSR_PROGRAM(0)));
2736 seq_printf(m, "ssp base: 0x%08x\n", I915_READ(CSR_SSP_BASE));
2737 seq_printf(m, "htp: 0x%08x\n", I915_READ(CSR_HTP_SKL));
2739 intel_runtime_pm_put(dev_priv, wakeref);
2744 static void intel_seq_print_mode(struct seq_file *m, int tabs,
2745 struct drm_display_mode *mode)
2749 for (i = 0; i < tabs; i++)
2752 seq_printf(m, DRM_MODE_FMT "\n", DRM_MODE_ARG(mode));
2755 static void intel_encoder_info(struct seq_file *m,
2756 struct intel_crtc *intel_crtc,
2757 struct intel_encoder *intel_encoder)
2759 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2760 struct drm_device *dev = &dev_priv->drm;
2761 struct drm_crtc *crtc = &intel_crtc->base;
2762 struct intel_connector *intel_connector;
2763 struct drm_encoder *encoder;
2765 encoder = &intel_encoder->base;
2766 seq_printf(m, "\tencoder %d: type: %s, connectors:\n",
2767 encoder->base.id, encoder->name);
2768 for_each_connector_on_encoder(dev, encoder, intel_connector) {
2769 struct drm_connector *connector = &intel_connector->base;
2770 seq_printf(m, "\t\tconnector %d: type: %s, status: %s",
2773 drm_get_connector_status_name(connector->status));
2774 if (connector->status == connector_status_connected) {
2775 struct drm_display_mode *mode = &crtc->mode;
2776 seq_printf(m, ", mode:\n");
2777 intel_seq_print_mode(m, 2, mode);
2784 static void intel_crtc_info(struct seq_file *m, struct intel_crtc *intel_crtc)
2786 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2787 struct drm_device *dev = &dev_priv->drm;
2788 struct drm_crtc *crtc = &intel_crtc->base;
2789 struct intel_encoder *intel_encoder;
2790 struct drm_plane_state *plane_state = crtc->primary->state;
2791 struct drm_framebuffer *fb = plane_state->fb;
2794 seq_printf(m, "\tfb: %d, pos: %dx%d, size: %dx%d\n",
2795 fb->base.id, plane_state->src_x >> 16,
2796 plane_state->src_y >> 16, fb->width, fb->height);
2798 seq_puts(m, "\tprimary plane disabled\n");
2799 for_each_encoder_on_crtc(dev, crtc, intel_encoder)
2800 intel_encoder_info(m, intel_crtc, intel_encoder);
2803 static void intel_panel_info(struct seq_file *m, struct intel_panel *panel)
2805 struct drm_display_mode *mode = panel->fixed_mode;
2807 seq_printf(m, "\tfixed mode:\n");
2808 intel_seq_print_mode(m, 2, mode);
2811 static void intel_dp_info(struct seq_file *m,
2812 struct intel_connector *intel_connector)
2814 struct intel_encoder *intel_encoder = intel_connector->encoder;
2815 struct intel_dp *intel_dp = enc_to_intel_dp(&intel_encoder->base);
2817 seq_printf(m, "\tDPCD rev: %x\n", intel_dp->dpcd[DP_DPCD_REV]);
2818 seq_printf(m, "\taudio support: %s\n", yesno(intel_dp->has_audio));
2819 if (intel_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)
2820 intel_panel_info(m, &intel_connector->panel);
2822 drm_dp_downstream_debug(m, intel_dp->dpcd, intel_dp->downstream_ports,
2826 static void intel_dp_mst_info(struct seq_file *m,
2827 struct intel_connector *intel_connector)
2829 struct intel_encoder *intel_encoder = intel_connector->encoder;
2830 struct intel_dp_mst_encoder *intel_mst =
2831 enc_to_mst(&intel_encoder->base);
2832 struct intel_digital_port *intel_dig_port = intel_mst->primary;
2833 struct intel_dp *intel_dp = &intel_dig_port->dp;
2834 bool has_audio = drm_dp_mst_port_has_audio(&intel_dp->mst_mgr,
2835 intel_connector->port);
2837 seq_printf(m, "\taudio support: %s\n", yesno(has_audio));
2840 static void intel_hdmi_info(struct seq_file *m,
2841 struct intel_connector *intel_connector)
2843 struct intel_encoder *intel_encoder = intel_connector->encoder;
2844 struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&intel_encoder->base);
2846 seq_printf(m, "\taudio support: %s\n", yesno(intel_hdmi->has_audio));
2849 static void intel_lvds_info(struct seq_file *m,
2850 struct intel_connector *intel_connector)
2852 intel_panel_info(m, &intel_connector->panel);
2855 static void intel_connector_info(struct seq_file *m,
2856 struct drm_connector *connector)
2858 struct intel_connector *intel_connector = to_intel_connector(connector);
2859 struct intel_encoder *intel_encoder = intel_connector->encoder;
2860 struct drm_display_mode *mode;
2862 seq_printf(m, "connector %d: type %s, status: %s\n",
2863 connector->base.id, connector->name,
2864 drm_get_connector_status_name(connector->status));
2866 if (connector->status == connector_status_disconnected)
2869 seq_printf(m, "\tphysical dimensions: %dx%dmm\n",
2870 connector->display_info.width_mm,
2871 connector->display_info.height_mm);
2872 seq_printf(m, "\tsubpixel order: %s\n",
2873 drm_get_subpixel_order_name(connector->display_info.subpixel_order));
2874 seq_printf(m, "\tCEA rev: %d\n", connector->display_info.cea_rev);
2879 switch (connector->connector_type) {
2880 case DRM_MODE_CONNECTOR_DisplayPort:
2881 case DRM_MODE_CONNECTOR_eDP:
2882 if (intel_encoder->type == INTEL_OUTPUT_DP_MST)
2883 intel_dp_mst_info(m, intel_connector);
2885 intel_dp_info(m, intel_connector);
2887 case DRM_MODE_CONNECTOR_LVDS:
2888 if (intel_encoder->type == INTEL_OUTPUT_LVDS)
2889 intel_lvds_info(m, intel_connector);
2891 case DRM_MODE_CONNECTOR_HDMIA:
2892 if (intel_encoder->type == INTEL_OUTPUT_HDMI ||
2893 intel_encoder->type == INTEL_OUTPUT_DDI)
2894 intel_hdmi_info(m, intel_connector);
2900 seq_printf(m, "\tmodes:\n");
2901 list_for_each_entry(mode, &connector->modes, head)
2902 intel_seq_print_mode(m, 2, mode);
2905 static const char *plane_type(enum drm_plane_type type)
2908 case DRM_PLANE_TYPE_OVERLAY:
2910 case DRM_PLANE_TYPE_PRIMARY:
2912 case DRM_PLANE_TYPE_CURSOR:
2915 * Deliberately omitting default: to generate compiler warnings
2916 * when a new drm_plane_type gets added.
2923 static void plane_rotation(char *buf, size_t bufsize, unsigned int rotation)
2926 * According to doc only one DRM_MODE_ROTATE_ is allowed but this
2927 * will print them all to visualize if the values are misused
2929 snprintf(buf, bufsize,
2930 "%s%s%s%s%s%s(0x%08x)",
2931 (rotation & DRM_MODE_ROTATE_0) ? "0 " : "",
2932 (rotation & DRM_MODE_ROTATE_90) ? "90 " : "",
2933 (rotation & DRM_MODE_ROTATE_180) ? "180 " : "",
2934 (rotation & DRM_MODE_ROTATE_270) ? "270 " : "",
2935 (rotation & DRM_MODE_REFLECT_X) ? "FLIPX " : "",
2936 (rotation & DRM_MODE_REFLECT_Y) ? "FLIPY " : "",
2940 static void intel_plane_info(struct seq_file *m, struct intel_crtc *intel_crtc)
2942 struct drm_i915_private *dev_priv = node_to_i915(m->private);
2943 struct drm_device *dev = &dev_priv->drm;
2944 struct intel_plane *intel_plane;
2946 for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) {
2947 struct drm_plane_state *state;
2948 struct drm_plane *plane = &intel_plane->base;
2949 struct drm_format_name_buf format_name;
2952 if (!plane->state) {
2953 seq_puts(m, "plane->state is NULL!\n");
2957 state = plane->state;
2960 drm_get_format_name(state->fb->format->format,
2963 sprintf(format_name.str, "N/A");
2966 plane_rotation(rot_str, sizeof(rot_str), state->rotation);
2968 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",
2970 plane_type(intel_plane->base.type),
2971 state->crtc_x, state->crtc_y,
2972 state->crtc_w, state->crtc_h,
2973 (state->src_x >> 16),
2974 ((state->src_x & 0xffff) * 15625) >> 10,
2975 (state->src_y >> 16),
2976 ((state->src_y & 0xffff) * 15625) >> 10,
2977 (state->src_w >> 16),
2978 ((state->src_w & 0xffff) * 15625) >> 10,
2979 (state->src_h >> 16),
2980 ((state->src_h & 0xffff) * 15625) >> 10,
2986 static void intel_scaler_info(struct seq_file *m, struct intel_crtc *intel_crtc)
2988 struct intel_crtc_state *pipe_config;
2989 int num_scalers = intel_crtc->num_scalers;
2992 pipe_config = to_intel_crtc_state(intel_crtc->base.state);
2994 /* Not all platformas have a scaler */
2996 seq_printf(m, "\tnum_scalers=%d, scaler_users=%x scaler_id=%d",
2998 pipe_config->scaler_state.scaler_users,
2999 pipe_config->scaler_state.scaler_id);
3001 for (i = 0; i < num_scalers; i++) {
3002 struct intel_scaler *sc =
3003 &pipe_config->scaler_state.scalers[i];
3005 seq_printf(m, ", scalers[%d]: use=%s, mode=%x",
3006 i, yesno(sc->in_use), sc->mode);
3010 seq_puts(m, "\tNo scalers available on this platform\n");
3014 static int i915_display_info(struct seq_file *m, void *unused)
3016 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3017 struct drm_device *dev = &dev_priv->drm;
3018 struct intel_crtc *crtc;
3019 struct drm_connector *connector;
3020 struct drm_connector_list_iter conn_iter;
3021 intel_wakeref_t wakeref;
3023 wakeref = intel_runtime_pm_get(dev_priv);
3025 seq_printf(m, "CRTC info\n");
3026 seq_printf(m, "---------\n");
3027 for_each_intel_crtc(dev, crtc) {
3028 struct intel_crtc_state *pipe_config;
3030 drm_modeset_lock(&crtc->base.mutex, NULL);
3031 pipe_config = to_intel_crtc_state(crtc->base.state);
3033 seq_printf(m, "CRTC %d: pipe: %c, active=%s, (size=%dx%d), dither=%s, bpp=%d\n",
3034 crtc->base.base.id, pipe_name(crtc->pipe),
3035 yesno(pipe_config->base.active),
3036 pipe_config->pipe_src_w, pipe_config->pipe_src_h,
3037 yesno(pipe_config->dither), pipe_config->pipe_bpp);
3039 if (pipe_config->base.active) {
3040 struct intel_plane *cursor =
3041 to_intel_plane(crtc->base.cursor);
3043 intel_crtc_info(m, crtc);
3045 seq_printf(m, "\tcursor visible? %s, position (%d, %d), size %dx%d, addr 0x%08x\n",
3046 yesno(cursor->base.state->visible),
3047 cursor->base.state->crtc_x,
3048 cursor->base.state->crtc_y,
3049 cursor->base.state->crtc_w,
3050 cursor->base.state->crtc_h,
3051 cursor->cursor.base);
3052 intel_scaler_info(m, crtc);
3053 intel_plane_info(m, crtc);
3056 seq_printf(m, "\tunderrun reporting: cpu=%s pch=%s \n",
3057 yesno(!crtc->cpu_fifo_underrun_disabled),
3058 yesno(!crtc->pch_fifo_underrun_disabled));
3059 drm_modeset_unlock(&crtc->base.mutex);
3062 seq_printf(m, "\n");
3063 seq_printf(m, "Connector info\n");
3064 seq_printf(m, "--------------\n");
3065 mutex_lock(&dev->mode_config.mutex);
3066 drm_connector_list_iter_begin(dev, &conn_iter);
3067 drm_for_each_connector_iter(connector, &conn_iter)
3068 intel_connector_info(m, connector);
3069 drm_connector_list_iter_end(&conn_iter);
3070 mutex_unlock(&dev->mode_config.mutex);
3072 intel_runtime_pm_put(dev_priv, wakeref);
3077 static int i915_engine_info(struct seq_file *m, void *unused)
3079 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3080 struct intel_engine_cs *engine;
3081 intel_wakeref_t wakeref;
3082 enum intel_engine_id id;
3083 struct drm_printer p;
3085 wakeref = intel_runtime_pm_get(dev_priv);
3087 seq_printf(m, "GT awake? %s\n", yesno(dev_priv->gt.awake));
3088 seq_printf(m, "Global active requests: %d\n",
3089 dev_priv->gt.active_requests);
3090 seq_printf(m, "CS timestamp frequency: %u kHz\n",
3091 RUNTIME_INFO(dev_priv)->cs_timestamp_frequency_khz);
3093 p = drm_seq_file_printer(m);
3094 for_each_engine(engine, dev_priv, id)
3095 intel_engine_dump(engine, &p, "%s\n", engine->name);
3097 intel_runtime_pm_put(dev_priv, wakeref);
3102 static int i915_rcs_topology(struct seq_file *m, void *unused)
3104 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3105 struct drm_printer p = drm_seq_file_printer(m);
3107 intel_device_info_dump_topology(&RUNTIME_INFO(dev_priv)->sseu, &p);
3112 static int i915_shrinker_info(struct seq_file *m, void *unused)
3114 struct drm_i915_private *i915 = node_to_i915(m->private);
3116 seq_printf(m, "seeks = %d\n", i915->mm.shrinker.seeks);
3117 seq_printf(m, "batch = %lu\n", i915->mm.shrinker.batch);
3122 static int i915_shared_dplls_info(struct seq_file *m, void *unused)
3124 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3125 struct drm_device *dev = &dev_priv->drm;
3128 drm_modeset_lock_all(dev);
3129 for (i = 0; i < dev_priv->num_shared_dpll; i++) {
3130 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
3132 seq_printf(m, "DPLL%i: %s, id: %i\n", i, pll->info->name,
3134 seq_printf(m, " crtc_mask: 0x%08x, active: 0x%x, on: %s\n",
3135 pll->state.crtc_mask, pll->active_mask, yesno(pll->on));
3136 seq_printf(m, " tracked hardware state:\n");
3137 seq_printf(m, " dpll: 0x%08x\n", pll->state.hw_state.dpll);
3138 seq_printf(m, " dpll_md: 0x%08x\n",
3139 pll->state.hw_state.dpll_md);
3140 seq_printf(m, " fp0: 0x%08x\n", pll->state.hw_state.fp0);
3141 seq_printf(m, " fp1: 0x%08x\n", pll->state.hw_state.fp1);
3142 seq_printf(m, " wrpll: 0x%08x\n", pll->state.hw_state.wrpll);
3143 seq_printf(m, " cfgcr0: 0x%08x\n", pll->state.hw_state.cfgcr0);
3144 seq_printf(m, " cfgcr1: 0x%08x\n", pll->state.hw_state.cfgcr1);
3145 seq_printf(m, " mg_refclkin_ctl: 0x%08x\n",
3146 pll->state.hw_state.mg_refclkin_ctl);
3147 seq_printf(m, " mg_clktop2_coreclkctl1: 0x%08x\n",
3148 pll->state.hw_state.mg_clktop2_coreclkctl1);
3149 seq_printf(m, " mg_clktop2_hsclkctl: 0x%08x\n",
3150 pll->state.hw_state.mg_clktop2_hsclkctl);
3151 seq_printf(m, " mg_pll_div0: 0x%08x\n",
3152 pll->state.hw_state.mg_pll_div0);
3153 seq_printf(m, " mg_pll_div1: 0x%08x\n",
3154 pll->state.hw_state.mg_pll_div1);
3155 seq_printf(m, " mg_pll_lf: 0x%08x\n",
3156 pll->state.hw_state.mg_pll_lf);
3157 seq_printf(m, " mg_pll_frac_lock: 0x%08x\n",
3158 pll->state.hw_state.mg_pll_frac_lock);
3159 seq_printf(m, " mg_pll_ssc: 0x%08x\n",
3160 pll->state.hw_state.mg_pll_ssc);
3161 seq_printf(m, " mg_pll_bias: 0x%08x\n",
3162 pll->state.hw_state.mg_pll_bias);
3163 seq_printf(m, " mg_pll_tdc_coldst_bias: 0x%08x\n",
3164 pll->state.hw_state.mg_pll_tdc_coldst_bias);
3166 drm_modeset_unlock_all(dev);
3171 static int i915_wa_registers(struct seq_file *m, void *unused)
3173 struct drm_i915_private *i915 = node_to_i915(m->private);
3174 const struct i915_wa_list *wal = &i915->engine[RCS0]->ctx_wa_list;
3178 seq_printf(m, "Workarounds applied: %u\n", wal->count);
3179 for (i = 0, wa = wal->list; i < wal->count; i++, wa++)
3180 seq_printf(m, "0x%X: 0x%08X, mask: 0x%08X\n",
3181 i915_mmio_reg_offset(wa->reg), wa->val, wa->mask);
3186 static int i915_ipc_status_show(struct seq_file *m, void *data)
3188 struct drm_i915_private *dev_priv = m->private;
3190 seq_printf(m, "Isochronous Priority Control: %s\n",
3191 yesno(dev_priv->ipc_enabled));
3195 static int i915_ipc_status_open(struct inode *inode, struct file *file)
3197 struct drm_i915_private *dev_priv = inode->i_private;
3199 if (!HAS_IPC(dev_priv))
3202 return single_open(file, i915_ipc_status_show, dev_priv);
3205 static ssize_t i915_ipc_status_write(struct file *file, const char __user *ubuf,
3206 size_t len, loff_t *offp)
3208 struct seq_file *m = file->private_data;
3209 struct drm_i915_private *dev_priv = m->private;
3210 intel_wakeref_t wakeref;
3214 ret = kstrtobool_from_user(ubuf, len, &enable);
3218 with_intel_runtime_pm(dev_priv, wakeref) {
3219 if (!dev_priv->ipc_enabled && enable)
3220 DRM_INFO("Enabling IPC: WM will be proper only after next commit\n");
3221 dev_priv->wm.distrust_bios_wm = true;
3222 dev_priv->ipc_enabled = enable;
3223 intel_enable_ipc(dev_priv);
3229 static const struct file_operations i915_ipc_status_fops = {
3230 .owner = THIS_MODULE,
3231 .open = i915_ipc_status_open,
3233 .llseek = seq_lseek,
3234 .release = single_release,
3235 .write = i915_ipc_status_write
3238 static int i915_ddb_info(struct seq_file *m, void *unused)
3240 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3241 struct drm_device *dev = &dev_priv->drm;
3242 struct skl_ddb_entry *entry;
3243 struct intel_crtc *crtc;
3245 if (INTEL_GEN(dev_priv) < 9)
3248 drm_modeset_lock_all(dev);
3250 seq_printf(m, "%-15s%8s%8s%8s\n", "", "Start", "End", "Size");
3252 for_each_intel_crtc(&dev_priv->drm, crtc) {
3253 struct intel_crtc_state *crtc_state =
3254 to_intel_crtc_state(crtc->base.state);
3255 enum pipe pipe = crtc->pipe;
3256 enum plane_id plane_id;
3258 seq_printf(m, "Pipe %c\n", pipe_name(pipe));
3260 for_each_plane_id_on_crtc(crtc, plane_id) {
3261 entry = &crtc_state->wm.skl.plane_ddb_y[plane_id];
3262 seq_printf(m, " Plane%-8d%8u%8u%8u\n", plane_id + 1,
3263 entry->start, entry->end,
3264 skl_ddb_entry_size(entry));
3267 entry = &crtc_state->wm.skl.plane_ddb_y[PLANE_CURSOR];
3268 seq_printf(m, " %-13s%8u%8u%8u\n", "Cursor", entry->start,
3269 entry->end, skl_ddb_entry_size(entry));
3272 drm_modeset_unlock_all(dev);
3277 static void drrs_status_per_crtc(struct seq_file *m,
3278 struct drm_device *dev,
3279 struct intel_crtc *intel_crtc)
3281 struct drm_i915_private *dev_priv = to_i915(dev);
3282 struct i915_drrs *drrs = &dev_priv->drrs;
3284 struct drm_connector *connector;
3285 struct drm_connector_list_iter conn_iter;
3287 drm_connector_list_iter_begin(dev, &conn_iter);
3288 drm_for_each_connector_iter(connector, &conn_iter) {
3289 if (connector->state->crtc != &intel_crtc->base)
3292 seq_printf(m, "%s:\n", connector->name);
3294 drm_connector_list_iter_end(&conn_iter);
3296 if (dev_priv->vbt.drrs_type == STATIC_DRRS_SUPPORT)
3297 seq_puts(m, "\tVBT: DRRS_type: Static");
3298 else if (dev_priv->vbt.drrs_type == SEAMLESS_DRRS_SUPPORT)
3299 seq_puts(m, "\tVBT: DRRS_type: Seamless");
3300 else if (dev_priv->vbt.drrs_type == DRRS_NOT_SUPPORTED)
3301 seq_puts(m, "\tVBT: DRRS_type: None");
3303 seq_puts(m, "\tVBT: DRRS_type: FIXME: Unrecognized Value");
3305 seq_puts(m, "\n\n");
3307 if (to_intel_crtc_state(intel_crtc->base.state)->has_drrs) {
3308 struct intel_panel *panel;
3310 mutex_lock(&drrs->mutex);
3311 /* DRRS Supported */
3312 seq_puts(m, "\tDRRS Supported: Yes\n");
3314 /* disable_drrs() will make drrs->dp NULL */
3316 seq_puts(m, "Idleness DRRS: Disabled\n");
3317 if (dev_priv->psr.enabled)
3319 "\tAs PSR is enabled, DRRS is not enabled\n");
3320 mutex_unlock(&drrs->mutex);
3324 panel = &drrs->dp->attached_connector->panel;
3325 seq_printf(m, "\t\tBusy_frontbuffer_bits: 0x%X",
3326 drrs->busy_frontbuffer_bits);
3328 seq_puts(m, "\n\t\t");
3329 if (drrs->refresh_rate_type == DRRS_HIGH_RR) {
3330 seq_puts(m, "DRRS_State: DRRS_HIGH_RR\n");
3331 vrefresh = panel->fixed_mode->vrefresh;
3332 } else if (drrs->refresh_rate_type == DRRS_LOW_RR) {
3333 seq_puts(m, "DRRS_State: DRRS_LOW_RR\n");
3334 vrefresh = panel->downclock_mode->vrefresh;
3336 seq_printf(m, "DRRS_State: Unknown(%d)\n",
3337 drrs->refresh_rate_type);
3338 mutex_unlock(&drrs->mutex);
3341 seq_printf(m, "\t\tVrefresh: %d", vrefresh);
3343 seq_puts(m, "\n\t\t");
3344 mutex_unlock(&drrs->mutex);
3346 /* DRRS not supported. Print the VBT parameter*/
3347 seq_puts(m, "\tDRRS Supported : No");
3352 static int i915_drrs_status(struct seq_file *m, void *unused)
3354 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3355 struct drm_device *dev = &dev_priv->drm;
3356 struct intel_crtc *intel_crtc;
3357 int active_crtc_cnt = 0;
3359 drm_modeset_lock_all(dev);
3360 for_each_intel_crtc(dev, intel_crtc) {
3361 if (intel_crtc->base.state->active) {
3363 seq_printf(m, "\nCRTC %d: ", active_crtc_cnt);
3365 drrs_status_per_crtc(m, dev, intel_crtc);
3368 drm_modeset_unlock_all(dev);
3370 if (!active_crtc_cnt)
3371 seq_puts(m, "No active crtc found\n");
3376 static int i915_dp_mst_info(struct seq_file *m, void *unused)
3378 struct drm_i915_private *dev_priv = node_to_i915(m->private);
3379 struct drm_device *dev = &dev_priv->drm;
3380 struct intel_encoder *intel_encoder;
3381 struct intel_digital_port *intel_dig_port;
3382 struct drm_connector *connector;
3383 struct drm_connector_list_iter conn_iter;
3385 drm_connector_list_iter_begin(dev, &conn_iter);
3386 drm_for_each_connector_iter(connector, &conn_iter) {
3387 if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
3390 intel_encoder = intel_attached_encoder(connector);
3391 if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
3394 intel_dig_port = enc_to_dig_port(&intel_encoder->base);
3395 if (!intel_dig_port->dp.can_mst)
3398 seq_printf(m, "MST Source Port %c\n",
3399 port_name(intel_dig_port->base.port));
3400 drm_dp_mst_dump_topology(m, &intel_dig_port->dp.mst_mgr);
3402 drm_connector_list_iter_end(&conn_iter);
3407 static ssize_t i915_displayport_test_active_write(struct file *file,
3408 const char __user *ubuf,
3409 size_t len, loff_t *offp)
3413 struct drm_device *dev;
3414 struct drm_connector *connector;
3415 struct drm_connector_list_iter conn_iter;
3416 struct intel_dp *intel_dp;
3419 dev = ((struct seq_file *)file->private_data)->private;
3424 input_buffer = memdup_user_nul(ubuf, len);
3425 if (IS_ERR(input_buffer))
3426 return PTR_ERR(input_buffer);
3428 DRM_DEBUG_DRIVER("Copied %d bytes from user\n", (unsigned int)len);
3430 drm_connector_list_iter_begin(dev, &conn_iter);
3431 drm_for_each_connector_iter(connector, &conn_iter) {
3432 struct intel_encoder *encoder;
3434 if (connector->connector_type !=
3435 DRM_MODE_CONNECTOR_DisplayPort)
3438 encoder = to_intel_encoder(connector->encoder);
3439 if (encoder && encoder->type == INTEL_OUTPUT_DP_MST)
3442 if (encoder && connector->status == connector_status_connected) {
3443 intel_dp = enc_to_intel_dp(&encoder->base);
3444 status = kstrtoint(input_buffer, 10, &val);
3447 DRM_DEBUG_DRIVER("Got %d for test active\n", val);
3448 /* To prevent erroneous activation of the compliance
3449 * testing code, only accept an actual value of 1 here
3452 intel_dp->compliance.test_active = 1;
3454 intel_dp->compliance.test_active = 0;
3457 drm_connector_list_iter_end(&conn_iter);
3458 kfree(input_buffer);
3466 static int i915_displayport_test_active_show(struct seq_file *m, void *data)
3468 struct drm_i915_private *dev_priv = m->private;
3469 struct drm_device *dev = &dev_priv->drm;
3470 struct drm_connector *connector;
3471 struct drm_connector_list_iter conn_iter;
3472 struct intel_dp *intel_dp;
3474 drm_connector_list_iter_begin(dev, &conn_iter);
3475 drm_for_each_connector_iter(connector, &conn_iter) {
3476 struct intel_encoder *encoder;
3478 if (connector->connector_type !=
3479 DRM_MODE_CONNECTOR_DisplayPort)
3482 encoder = to_intel_encoder(connector->encoder);
3483 if (encoder && encoder->type == INTEL_OUTPUT_DP_MST)
3486 if (encoder && connector->status == connector_status_connected) {
3487 intel_dp = enc_to_intel_dp(&encoder->base);
3488 if (intel_dp->compliance.test_active)
3495 drm_connector_list_iter_end(&conn_iter);
3500 static int i915_displayport_test_active_open(struct inode *inode,
3503 return single_open(file, i915_displayport_test_active_show,
3507 static const struct file_operations i915_displayport_test_active_fops = {
3508 .owner = THIS_MODULE,
3509 .open = i915_displayport_test_active_open,
3511 .llseek = seq_lseek,
3512 .release = single_release,
3513 .write = i915_displayport_test_active_write
3516 static int i915_displayport_test_data_show(struct seq_file *m, void *data)
3518 struct drm_i915_private *dev_priv = m->private;
3519 struct drm_device *dev = &dev_priv->drm;
3520 struct drm_connector *connector;
3521 struct drm_connector_list_iter conn_iter;
3522 struct intel_dp *intel_dp;
3524 drm_connector_list_iter_begin(dev, &conn_iter);
3525 drm_for_each_connector_iter(connector, &conn_iter) {
3526 struct intel_encoder *encoder;
3528 if (connector->connector_type !=
3529 DRM_MODE_CONNECTOR_DisplayPort)
3532 encoder = to_intel_encoder(connector->encoder);
3533 if (encoder && encoder->type == INTEL_OUTPUT_DP_MST)
3536 if (encoder && connector->status == connector_status_connected) {
3537 intel_dp = enc_to_intel_dp(&encoder->base);
3538 if (intel_dp->compliance.test_type ==
3539 DP_TEST_LINK_EDID_READ)
3540 seq_printf(m, "%lx",
3541 intel_dp->compliance.test_data.edid);
3542 else if (intel_dp->compliance.test_type ==
3543 DP_TEST_LINK_VIDEO_PATTERN) {
3544 seq_printf(m, "hdisplay: %d\n",
3545 intel_dp->compliance.test_data.hdisplay);
3546 seq_printf(m, "vdisplay: %d\n",
3547 intel_dp->compliance.test_data.vdisplay);
3548 seq_printf(m, "bpc: %u\n",
3549 intel_dp->compliance.test_data.bpc);
3554 drm_connector_list_iter_end(&conn_iter);
3558 DEFINE_SHOW_ATTRIBUTE(i915_displayport_test_data);
3560 static int i915_displayport_test_type_show(struct seq_file *m, void *data)
3562 struct drm_i915_private *dev_priv = m->private;
3563 struct drm_device *dev = &dev_priv->drm;
3564 struct drm_connector *connector;
3565 struct drm_connector_list_iter conn_iter;
3566 struct intel_dp *intel_dp;
3568 drm_connector_list_iter_begin(dev, &conn_iter);
3569 drm_for_each_connector_iter(connector, &conn_iter) {
3570 struct intel_encoder *encoder;
3572 if (connector->connector_type !=
3573 DRM_MODE_CONNECTOR_DisplayPort)
3576 encoder = to_intel_encoder(connector->encoder);
3577 if (encoder && encoder->type == INTEL_OUTPUT_DP_MST)
3580 if (encoder && connector->status == connector_status_connected) {
3581 intel_dp = enc_to_intel_dp(&encoder->base);
3582 seq_printf(m, "%02lx", intel_dp->compliance.test_type);
3586 drm_connector_list_iter_end(&conn_iter);
3590 DEFINE_SHOW_ATTRIBUTE(i915_displayport_test_type);
3592 static void wm_latency_show(struct seq_file *m, const u16 wm[8])
3594 struct drm_i915_private *dev_priv = m->private;
3595 struct drm_device *dev = &dev_priv->drm;
3599 if (IS_CHERRYVIEW(dev_priv))
3601 else if (IS_VALLEYVIEW(dev_priv))
3603 else if (IS_G4X(dev_priv))
3606 num_levels = ilk_wm_max_level(dev_priv) + 1;
3608 drm_modeset_lock_all(dev);
3610 for (level = 0; level < num_levels; level++) {
3611 unsigned int latency = wm[level];
3614 * - WM1+ latency values in 0.5us units
3615 * - latencies are in us on gen9/vlv/chv
3617 if (INTEL_GEN(dev_priv) >= 9 ||
3618 IS_VALLEYVIEW(dev_priv) ||
3619 IS_CHERRYVIEW(dev_priv) ||
3625 seq_printf(m, "WM%d %u (%u.%u usec)\n",
3626 level, wm[level], latency / 10, latency % 10);
3629 drm_modeset_unlock_all(dev);
3632 static int pri_wm_latency_show(struct seq_file *m, void *data)
3634 struct drm_i915_private *dev_priv = m->private;
3635 const u16 *latencies;
3637 if (INTEL_GEN(dev_priv) >= 9)
3638 latencies = dev_priv->wm.skl_latency;
3640 latencies = dev_priv->wm.pri_latency;
3642 wm_latency_show(m, latencies);
3647 static int spr_wm_latency_show(struct seq_file *m, void *data)
3649 struct drm_i915_private *dev_priv = m->private;
3650 const u16 *latencies;
3652 if (INTEL_GEN(dev_priv) >= 9)
3653 latencies = dev_priv->wm.skl_latency;
3655 latencies = dev_priv->wm.spr_latency;
3657 wm_latency_show(m, latencies);
3662 static int cur_wm_latency_show(struct seq_file *m, void *data)
3664 struct drm_i915_private *dev_priv = m->private;
3665 const u16 *latencies;
3667 if (INTEL_GEN(dev_priv) >= 9)
3668 latencies = dev_priv->wm.skl_latency;
3670 latencies = dev_priv->wm.cur_latency;
3672 wm_latency_show(m, latencies);
3677 static int pri_wm_latency_open(struct inode *inode, struct file *file)
3679 struct drm_i915_private *dev_priv = inode->i_private;
3681 if (INTEL_GEN(dev_priv) < 5 && !IS_G4X(dev_priv))
3684 return single_open(file, pri_wm_latency_show, dev_priv);
3687 static int spr_wm_latency_open(struct inode *inode, struct file *file)
3689 struct drm_i915_private *dev_priv = inode->i_private;
3691 if (HAS_GMCH(dev_priv))
3694 return single_open(file, spr_wm_latency_show, dev_priv);
3697 static int cur_wm_latency_open(struct inode *inode, struct file *file)
3699 struct drm_i915_private *dev_priv = inode->i_private;
3701 if (HAS_GMCH(dev_priv))
3704 return single_open(file, cur_wm_latency_show, dev_priv);
3707 static ssize_t wm_latency_write(struct file *file, const char __user *ubuf,
3708 size_t len, loff_t *offp, u16 wm[8])
3710 struct seq_file *m = file->private_data;
3711 struct drm_i915_private *dev_priv = m->private;
3712 struct drm_device *dev = &dev_priv->drm;
3719 if (IS_CHERRYVIEW(dev_priv))
3721 else if (IS_VALLEYVIEW(dev_priv))
3723 else if (IS_G4X(dev_priv))
3726 num_levels = ilk_wm_max_level(dev_priv) + 1;
3728 if (len >= sizeof(tmp))
3731 if (copy_from_user(tmp, ubuf, len))
3736 ret = sscanf(tmp, "%hu %hu %hu %hu %hu %hu %hu %hu",
3737 &new[0], &new[1], &new[2], &new[3],
3738 &new[4], &new[5], &new[6], &new[7]);
3739 if (ret != num_levels)
3742 drm_modeset_lock_all(dev);
3744 for (level = 0; level < num_levels; level++)
3745 wm[level] = new[level];
3747 drm_modeset_unlock_all(dev);
3753 static ssize_t pri_wm_latency_write(struct file *file, const char __user *ubuf,
3754 size_t len, loff_t *offp)
3756 struct seq_file *m = file->private_data;
3757 struct drm_i915_private *dev_priv = m->private;
3760 if (INTEL_GEN(dev_priv) >= 9)
3761 latencies = dev_priv->wm.skl_latency;
3763 latencies = dev_priv->wm.pri_latency;
3765 return wm_latency_write(file, ubuf, len, offp, latencies);
3768 static ssize_t spr_wm_latency_write(struct file *file, const char __user *ubuf,
3769 size_t len, loff_t *offp)
3771 struct seq_file *m = file->private_data;
3772 struct drm_i915_private *dev_priv = m->private;
3775 if (INTEL_GEN(dev_priv) >= 9)
3776 latencies = dev_priv->wm.skl_latency;
3778 latencies = dev_priv->wm.spr_latency;
3780 return wm_latency_write(file, ubuf, len, offp, latencies);
3783 static ssize_t cur_wm_latency_write(struct file *file, const char __user *ubuf,
3784 size_t len, loff_t *offp)
3786 struct seq_file *m = file->private_data;
3787 struct drm_i915_private *dev_priv = m->private;
3790 if (INTEL_GEN(dev_priv) >= 9)
3791 latencies = dev_priv->wm.skl_latency;
3793 latencies = dev_priv->wm.cur_latency;
3795 return wm_latency_write(file, ubuf, len, offp, latencies);
3798 static const struct file_operations i915_pri_wm_latency_fops = {
3799 .owner = THIS_MODULE,
3800 .open = pri_wm_latency_open,
3802 .llseek = seq_lseek,
3803 .release = single_release,
3804 .write = pri_wm_latency_write
3807 static const struct file_operations i915_spr_wm_latency_fops = {
3808 .owner = THIS_MODULE,
3809 .open = spr_wm_latency_open,
3811 .llseek = seq_lseek,
3812 .release = single_release,
3813 .write = spr_wm_latency_write
3816 static const struct file_operations i915_cur_wm_latency_fops = {
3817 .owner = THIS_MODULE,
3818 .open = cur_wm_latency_open,
3820 .llseek = seq_lseek,
3821 .release = single_release,
3822 .write = cur_wm_latency_write
3826 i915_wedged_get(void *data, u64 *val)
3828 int ret = i915_terminally_wedged(data);
3843 i915_wedged_set(void *data, u64 val)
3845 struct drm_i915_private *i915 = data;
3847 /* Flush any previous reset before applying for a new one */
3848 wait_event(i915->gpu_error.reset_queue,
3849 !test_bit(I915_RESET_BACKOFF, &i915->gpu_error.flags));
3851 i915_handle_error(i915, val, I915_ERROR_CAPTURE,
3852 "Manually set wedged engine mask = %llx", val);
3856 DEFINE_SIMPLE_ATTRIBUTE(i915_wedged_fops,
3857 i915_wedged_get, i915_wedged_set,
3860 #define DROP_UNBOUND BIT(0)
3861 #define DROP_BOUND BIT(1)
3862 #define DROP_RETIRE BIT(2)
3863 #define DROP_ACTIVE BIT(3)
3864 #define DROP_FREED BIT(4)
3865 #define DROP_SHRINK_ALL BIT(5)
3866 #define DROP_IDLE BIT(6)
3867 #define DROP_RESET_ACTIVE BIT(7)
3868 #define DROP_RESET_SEQNO BIT(8)
3869 #define DROP_ALL (DROP_UNBOUND | \
3876 DROP_RESET_ACTIVE | \
3879 i915_drop_caches_get(void *data, u64 *val)
3887 i915_drop_caches_set(void *data, u64 val)
3889 struct drm_i915_private *i915 = data;
3891 DRM_DEBUG("Dropping caches: 0x%08llx [0x%08llx]\n",
3892 val, val & DROP_ALL);
3894 if (val & DROP_RESET_ACTIVE &&
3895 wait_for(intel_engines_are_idle(i915), I915_IDLE_ENGINES_TIMEOUT))
3896 i915_gem_set_wedged(i915);
3898 /* No need to check and wait for gpu resets, only libdrm auto-restarts
3899 * on ioctls on -EAGAIN. */
3900 if (val & (DROP_ACTIVE | DROP_RETIRE | DROP_RESET_SEQNO)) {
3903 ret = mutex_lock_interruptible(&i915->drm.struct_mutex);
3907 if (val & DROP_ACTIVE)
3908 ret = i915_gem_wait_for_idle(i915,
3909 I915_WAIT_INTERRUPTIBLE |
3911 MAX_SCHEDULE_TIMEOUT);
3913 if (val & DROP_RETIRE)
3914 i915_retire_requests(i915);
3916 mutex_unlock(&i915->drm.struct_mutex);
3919 if (val & DROP_RESET_ACTIVE && i915_terminally_wedged(i915))
3920 i915_handle_error(i915, ALL_ENGINES, 0, NULL);
3922 fs_reclaim_acquire(GFP_KERNEL);
3923 if (val & DROP_BOUND)
3924 i915_gem_shrink(i915, LONG_MAX, NULL, I915_SHRINK_BOUND);
3926 if (val & DROP_UNBOUND)
3927 i915_gem_shrink(i915, LONG_MAX, NULL, I915_SHRINK_UNBOUND);
3929 if (val & DROP_SHRINK_ALL)
3930 i915_gem_shrink_all(i915);
3931 fs_reclaim_release(GFP_KERNEL);
3933 if (val & DROP_IDLE) {
3935 if (READ_ONCE(i915->gt.active_requests))
3936 flush_delayed_work(&i915->gt.retire_work);
3937 drain_delayed_work(&i915->gt.idle_work);
3938 } while (READ_ONCE(i915->gt.awake));
3941 if (val & DROP_FREED)
3942 i915_gem_drain_freed_objects(i915);
3947 DEFINE_SIMPLE_ATTRIBUTE(i915_drop_caches_fops,
3948 i915_drop_caches_get, i915_drop_caches_set,
3952 i915_cache_sharing_get(void *data, u64 *val)
3954 struct drm_i915_private *dev_priv = data;
3955 intel_wakeref_t wakeref;
3958 if (!(IS_GEN_RANGE(dev_priv, 6, 7)))
3961 with_intel_runtime_pm(dev_priv, wakeref)
3962 snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
3964 *val = (snpcr & GEN6_MBC_SNPCR_MASK) >> GEN6_MBC_SNPCR_SHIFT;
3970 i915_cache_sharing_set(void *data, u64 val)
3972 struct drm_i915_private *dev_priv = data;
3973 intel_wakeref_t wakeref;
3975 if (!(IS_GEN_RANGE(dev_priv, 6, 7)))
3981 DRM_DEBUG_DRIVER("Manually setting uncore sharing to %llu\n", val);
3982 with_intel_runtime_pm(dev_priv, wakeref) {
3985 /* Update the cache sharing policy here as well */
3986 snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
3987 snpcr &= ~GEN6_MBC_SNPCR_MASK;
3988 snpcr |= val << GEN6_MBC_SNPCR_SHIFT;
3989 I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr);
3995 DEFINE_SIMPLE_ATTRIBUTE(i915_cache_sharing_fops,
3996 i915_cache_sharing_get, i915_cache_sharing_set,
3999 static void cherryview_sseu_device_status(struct drm_i915_private *dev_priv,
4000 struct sseu_dev_info *sseu)
4003 const int ss_max = SS_MAX;
4004 u32 sig1[SS_MAX], sig2[SS_MAX];
4007 sig1[0] = I915_READ(CHV_POWER_SS0_SIG1);
4008 sig1[1] = I915_READ(CHV_POWER_SS1_SIG1);
4009 sig2[0] = I915_READ(CHV_POWER_SS0_SIG2);
4010 sig2[1] = I915_READ(CHV_POWER_SS1_SIG2);
4012 for (ss = 0; ss < ss_max; ss++) {
4013 unsigned int eu_cnt;
4015 if (sig1[ss] & CHV_SS_PG_ENABLE)
4016 /* skip disabled subslice */
4019 sseu->slice_mask = BIT(0);
4020 sseu->subslice_mask[0] |= BIT(ss);
4021 eu_cnt = ((sig1[ss] & CHV_EU08_PG_ENABLE) ? 0 : 2) +
4022 ((sig1[ss] & CHV_EU19_PG_ENABLE) ? 0 : 2) +
4023 ((sig1[ss] & CHV_EU210_PG_ENABLE) ? 0 : 2) +
4024 ((sig2[ss] & CHV_EU311_PG_ENABLE) ? 0 : 2);
4025 sseu->eu_total += eu_cnt;
4026 sseu->eu_per_subslice = max_t(unsigned int,
4027 sseu->eu_per_subslice, eu_cnt);
4032 static void gen10_sseu_device_status(struct drm_i915_private *dev_priv,
4033 struct sseu_dev_info *sseu)
4036 const struct intel_runtime_info *info = RUNTIME_INFO(dev_priv);
4037 u32 s_reg[SS_MAX], eu_reg[2 * SS_MAX], eu_mask[2];
4040 for (s = 0; s < info->sseu.max_slices; s++) {
4042 * FIXME: Valid SS Mask respects the spec and read
4043 * only valid bits for those registers, excluding reserved
4044 * although this seems wrong because it would leave many
4045 * subslices without ACK.
4047 s_reg[s] = I915_READ(GEN10_SLICE_PGCTL_ACK(s)) &
4048 GEN10_PGCTL_VALID_SS_MASK(s);
4049 eu_reg[2 * s] = I915_READ(GEN10_SS01_EU_PGCTL_ACK(s));
4050 eu_reg[2 * s + 1] = I915_READ(GEN10_SS23_EU_PGCTL_ACK(s));
4053 eu_mask[0] = GEN9_PGCTL_SSA_EU08_ACK |
4054 GEN9_PGCTL_SSA_EU19_ACK |
4055 GEN9_PGCTL_SSA_EU210_ACK |
4056 GEN9_PGCTL_SSA_EU311_ACK;
4057 eu_mask[1] = GEN9_PGCTL_SSB_EU08_ACK |
4058 GEN9_PGCTL_SSB_EU19_ACK |
4059 GEN9_PGCTL_SSB_EU210_ACK |
4060 GEN9_PGCTL_SSB_EU311_ACK;
4062 for (s = 0; s < info->sseu.max_slices; s++) {
4063 if ((s_reg[s] & GEN9_PGCTL_SLICE_ACK) == 0)
4064 /* skip disabled slice */
4067 sseu->slice_mask |= BIT(s);
4068 sseu->subslice_mask[s] = info->sseu.subslice_mask[s];
4070 for (ss = 0; ss < info->sseu.max_subslices; ss++) {
4071 unsigned int eu_cnt;
4073 if (!(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss))))
4074 /* skip disabled subslice */
4077 eu_cnt = 2 * hweight32(eu_reg[2 * s + ss / 2] &
4079 sseu->eu_total += eu_cnt;
4080 sseu->eu_per_subslice = max_t(unsigned int,
4081 sseu->eu_per_subslice,
4088 static void gen9_sseu_device_status(struct drm_i915_private *dev_priv,
4089 struct sseu_dev_info *sseu)
4092 const struct intel_runtime_info *info = RUNTIME_INFO(dev_priv);
4093 u32 s_reg[SS_MAX], eu_reg[2 * SS_MAX], eu_mask[2];
4096 for (s = 0; s < info->sseu.max_slices; s++) {
4097 s_reg[s] = I915_READ(GEN9_SLICE_PGCTL_ACK(s));
4098 eu_reg[2*s] = I915_READ(GEN9_SS01_EU_PGCTL_ACK(s));
4099 eu_reg[2*s + 1] = I915_READ(GEN9_SS23_EU_PGCTL_ACK(s));
4102 eu_mask[0] = GEN9_PGCTL_SSA_EU08_ACK |
4103 GEN9_PGCTL_SSA_EU19_ACK |
4104 GEN9_PGCTL_SSA_EU210_ACK |
4105 GEN9_PGCTL_SSA_EU311_ACK;
4106 eu_mask[1] = GEN9_PGCTL_SSB_EU08_ACK |
4107 GEN9_PGCTL_SSB_EU19_ACK |
4108 GEN9_PGCTL_SSB_EU210_ACK |
4109 GEN9_PGCTL_SSB_EU311_ACK;
4111 for (s = 0; s < info->sseu.max_slices; s++) {
4112 if ((s_reg[s] & GEN9_PGCTL_SLICE_ACK) == 0)
4113 /* skip disabled slice */
4116 sseu->slice_mask |= BIT(s);
4118 if (IS_GEN9_BC(dev_priv))
4119 sseu->subslice_mask[s] =
4120 RUNTIME_INFO(dev_priv)->sseu.subslice_mask[s];
4122 for (ss = 0; ss < info->sseu.max_subslices; ss++) {
4123 unsigned int eu_cnt;
4125 if (IS_GEN9_LP(dev_priv)) {
4126 if (!(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss))))
4127 /* skip disabled subslice */
4130 sseu->subslice_mask[s] |= BIT(ss);
4133 eu_cnt = 2 * hweight32(eu_reg[2*s + ss/2] &
4135 sseu->eu_total += eu_cnt;
4136 sseu->eu_per_subslice = max_t(unsigned int,
4137 sseu->eu_per_subslice,
4144 static void broadwell_sseu_device_status(struct drm_i915_private *dev_priv,
4145 struct sseu_dev_info *sseu)
4147 u32 slice_info = I915_READ(GEN8_GT_SLICE_INFO);
4150 sseu->slice_mask = slice_info & GEN8_LSLICESTAT_MASK;
4152 if (sseu->slice_mask) {
4153 sseu->eu_per_subslice =
4154 RUNTIME_INFO(dev_priv)->sseu.eu_per_subslice;
4155 for (s = 0; s < fls(sseu->slice_mask); s++) {
4156 sseu->subslice_mask[s] =
4157 RUNTIME_INFO(dev_priv)->sseu.subslice_mask[s];
4159 sseu->eu_total = sseu->eu_per_subslice *
4160 sseu_subslice_total(sseu);
4162 /* subtract fused off EU(s) from enabled slice(s) */
4163 for (s = 0; s < fls(sseu->slice_mask); s++) {
4165 RUNTIME_INFO(dev_priv)->sseu.subslice_7eu[s];
4167 sseu->eu_total -= hweight8(subslice_7eu);
4172 static void i915_print_sseu_info(struct seq_file *m, bool is_available_info,
4173 const struct sseu_dev_info *sseu)
4175 struct drm_i915_private *dev_priv = node_to_i915(m->private);
4176 const char *type = is_available_info ? "Available" : "Enabled";
4179 seq_printf(m, " %s Slice Mask: %04x\n", type,
4181 seq_printf(m, " %s Slice Total: %u\n", type,
4182 hweight8(sseu->slice_mask));
4183 seq_printf(m, " %s Subslice Total: %u\n", type,
4184 sseu_subslice_total(sseu));
4185 for (s = 0; s < fls(sseu->slice_mask); s++) {
4186 seq_printf(m, " %s Slice%i subslices: %u\n", type,
4187 s, hweight8(sseu->subslice_mask[s]));
4189 seq_printf(m, " %s EU Total: %u\n", type,
4191 seq_printf(m, " %s EU Per Subslice: %u\n", type,
4192 sseu->eu_per_subslice);
4194 if (!is_available_info)
4197 seq_printf(m, " Has Pooled EU: %s\n", yesno(HAS_POOLED_EU(dev_priv)));
4198 if (HAS_POOLED_EU(dev_priv))
4199 seq_printf(m, " Min EU in pool: %u\n", sseu->min_eu_in_pool);
4201 seq_printf(m, " Has Slice Power Gating: %s\n",
4202 yesno(sseu->has_slice_pg));
4203 seq_printf(m, " Has Subslice Power Gating: %s\n",
4204 yesno(sseu->has_subslice_pg));
4205 seq_printf(m, " Has EU Power Gating: %s\n",
4206 yesno(sseu->has_eu_pg));
4209 static int i915_sseu_status(struct seq_file *m, void *unused)
4211 struct drm_i915_private *dev_priv = node_to_i915(m->private);
4212 struct sseu_dev_info sseu;
4213 intel_wakeref_t wakeref;
4215 if (INTEL_GEN(dev_priv) < 8)
4218 seq_puts(m, "SSEU Device Info\n");
4219 i915_print_sseu_info(m, true, &RUNTIME_INFO(dev_priv)->sseu);
4221 seq_puts(m, "SSEU Device Status\n");
4222 memset(&sseu, 0, sizeof(sseu));
4223 sseu.max_slices = RUNTIME_INFO(dev_priv)->sseu.max_slices;
4224 sseu.max_subslices = RUNTIME_INFO(dev_priv)->sseu.max_subslices;
4225 sseu.max_eus_per_subslice =
4226 RUNTIME_INFO(dev_priv)->sseu.max_eus_per_subslice;
4228 with_intel_runtime_pm(dev_priv, wakeref) {
4229 if (IS_CHERRYVIEW(dev_priv))
4230 cherryview_sseu_device_status(dev_priv, &sseu);
4231 else if (IS_BROADWELL(dev_priv))
4232 broadwell_sseu_device_status(dev_priv, &sseu);
4233 else if (IS_GEN(dev_priv, 9))
4234 gen9_sseu_device_status(dev_priv, &sseu);
4235 else if (INTEL_GEN(dev_priv) >= 10)
4236 gen10_sseu_device_status(dev_priv, &sseu);
4239 i915_print_sseu_info(m, false, &sseu);
4244 static int i915_forcewake_open(struct inode *inode, struct file *file)
4246 struct drm_i915_private *i915 = inode->i_private;
4248 if (INTEL_GEN(i915) < 6)
4251 file->private_data = (void *)(uintptr_t)intel_runtime_pm_get(i915);
4252 intel_uncore_forcewake_user_get(&i915->uncore);
4257 static int i915_forcewake_release(struct inode *inode, struct file *file)
4259 struct drm_i915_private *i915 = inode->i_private;
4261 if (INTEL_GEN(i915) < 6)
4264 intel_uncore_forcewake_user_put(&i915->uncore);
4265 intel_runtime_pm_put(i915,
4266 (intel_wakeref_t)(uintptr_t)file->private_data);
4271 static const struct file_operations i915_forcewake_fops = {
4272 .owner = THIS_MODULE,
4273 .open = i915_forcewake_open,
4274 .release = i915_forcewake_release,
4277 static int i915_hpd_storm_ctl_show(struct seq_file *m, void *data)
4279 struct drm_i915_private *dev_priv = m->private;
4280 struct i915_hotplug *hotplug = &dev_priv->hotplug;
4282 /* Synchronize with everything first in case there's been an HPD
4283 * storm, but we haven't finished handling it in the kernel yet
4285 synchronize_irq(dev_priv->drm.irq);
4286 flush_work(&dev_priv->hotplug.dig_port_work);
4287 flush_work(&dev_priv->hotplug.hotplug_work);
4289 seq_printf(m, "Threshold: %d\n", hotplug->hpd_storm_threshold);
4290 seq_printf(m, "Detected: %s\n",
4291 yesno(delayed_work_pending(&hotplug->reenable_work)));
4296 static ssize_t i915_hpd_storm_ctl_write(struct file *file,
4297 const char __user *ubuf, size_t len,
4300 struct seq_file *m = file->private_data;
4301 struct drm_i915_private *dev_priv = m->private;
4302 struct i915_hotplug *hotplug = &dev_priv->hotplug;
4303 unsigned int new_threshold;
4308 if (len >= sizeof(tmp))
4311 if (copy_from_user(tmp, ubuf, len))
4316 /* Strip newline, if any */
4317 newline = strchr(tmp, '\n');
4321 if (strcmp(tmp, "reset") == 0)
4322 new_threshold = HPD_STORM_DEFAULT_THRESHOLD;
4323 else if (kstrtouint(tmp, 10, &new_threshold) != 0)
4326 if (new_threshold > 0)
4327 DRM_DEBUG_KMS("Setting HPD storm detection threshold to %d\n",
4330 DRM_DEBUG_KMS("Disabling HPD storm detection\n");
4332 spin_lock_irq(&dev_priv->irq_lock);
4333 hotplug->hpd_storm_threshold = new_threshold;
4334 /* Reset the HPD storm stats so we don't accidentally trigger a storm */
4336 hotplug->stats[i].count = 0;
4337 spin_unlock_irq(&dev_priv->irq_lock);
4339 /* Re-enable hpd immediately if we were in an irq storm */
4340 flush_delayed_work(&dev_priv->hotplug.reenable_work);
4345 static int i915_hpd_storm_ctl_open(struct inode *inode, struct file *file)
4347 return single_open(file, i915_hpd_storm_ctl_show, inode->i_private);
4350 static const struct file_operations i915_hpd_storm_ctl_fops = {
4351 .owner = THIS_MODULE,
4352 .open = i915_hpd_storm_ctl_open,
4354 .llseek = seq_lseek,
4355 .release = single_release,
4356 .write = i915_hpd_storm_ctl_write
4359 static int i915_hpd_short_storm_ctl_show(struct seq_file *m, void *data)
4361 struct drm_i915_private *dev_priv = m->private;
4363 seq_printf(m, "Enabled: %s\n",
4364 yesno(dev_priv->hotplug.hpd_short_storm_enabled));
4370 i915_hpd_short_storm_ctl_open(struct inode *inode, struct file *file)
4372 return single_open(file, i915_hpd_short_storm_ctl_show,
4376 static ssize_t i915_hpd_short_storm_ctl_write(struct file *file,
4377 const char __user *ubuf,
4378 size_t len, loff_t *offp)
4380 struct seq_file *m = file->private_data;
4381 struct drm_i915_private *dev_priv = m->private;
4382 struct i915_hotplug *hotplug = &dev_priv->hotplug;
4388 if (len >= sizeof(tmp))
4391 if (copy_from_user(tmp, ubuf, len))
4396 /* Strip newline, if any */
4397 newline = strchr(tmp, '\n');
4401 /* Reset to the "default" state for this system */
4402 if (strcmp(tmp, "reset") == 0)
4403 new_state = !HAS_DP_MST(dev_priv);
4404 else if (kstrtobool(tmp, &new_state) != 0)
4407 DRM_DEBUG_KMS("%sabling HPD short storm detection\n",
4408 new_state ? "En" : "Dis");
4410 spin_lock_irq(&dev_priv->irq_lock);
4411 hotplug->hpd_short_storm_enabled = new_state;
4412 /* Reset the HPD storm stats so we don't accidentally trigger a storm */
4414 hotplug->stats[i].count = 0;
4415 spin_unlock_irq(&dev_priv->irq_lock);
4417 /* Re-enable hpd immediately if we were in an irq storm */
4418 flush_delayed_work(&dev_priv->hotplug.reenable_work);
4423 static const struct file_operations i915_hpd_short_storm_ctl_fops = {
4424 .owner = THIS_MODULE,
4425 .open = i915_hpd_short_storm_ctl_open,
4427 .llseek = seq_lseek,
4428 .release = single_release,
4429 .write = i915_hpd_short_storm_ctl_write,
4432 static int i915_drrs_ctl_set(void *data, u64 val)
4434 struct drm_i915_private *dev_priv = data;
4435 struct drm_device *dev = &dev_priv->drm;
4436 struct intel_crtc *crtc;
4438 if (INTEL_GEN(dev_priv) < 7)
4441 for_each_intel_crtc(dev, crtc) {
4442 struct drm_connector_list_iter conn_iter;
4443 struct intel_crtc_state *crtc_state;
4444 struct drm_connector *connector;
4445 struct drm_crtc_commit *commit;
4448 ret = drm_modeset_lock_single_interruptible(&crtc->base.mutex);
4452 crtc_state = to_intel_crtc_state(crtc->base.state);
4454 if (!crtc_state->base.active ||
4455 !crtc_state->has_drrs)
4458 commit = crtc_state->base.commit;
4460 ret = wait_for_completion_interruptible(&commit->hw_done);
4465 drm_connector_list_iter_begin(dev, &conn_iter);
4466 drm_for_each_connector_iter(connector, &conn_iter) {
4467 struct intel_encoder *encoder;
4468 struct intel_dp *intel_dp;
4470 if (!(crtc_state->base.connector_mask &
4471 drm_connector_mask(connector)))
4474 encoder = intel_attached_encoder(connector);
4475 if (encoder->type != INTEL_OUTPUT_EDP)
4478 DRM_DEBUG_DRIVER("Manually %sabling DRRS. %llu\n",
4479 val ? "en" : "dis", val);
4481 intel_dp = enc_to_intel_dp(&encoder->base);
4483 intel_edp_drrs_enable(intel_dp,
4486 intel_edp_drrs_disable(intel_dp,
4489 drm_connector_list_iter_end(&conn_iter);
4492 drm_modeset_unlock(&crtc->base.mutex);
4500 DEFINE_SIMPLE_ATTRIBUTE(i915_drrs_ctl_fops, NULL, i915_drrs_ctl_set, "%llu\n");
4503 i915_fifo_underrun_reset_write(struct file *filp,
4504 const char __user *ubuf,
4505 size_t cnt, loff_t *ppos)
4507 struct drm_i915_private *dev_priv = filp->private_data;
4508 struct intel_crtc *intel_crtc;
4509 struct drm_device *dev = &dev_priv->drm;
4513 ret = kstrtobool_from_user(ubuf, cnt, &reset);
4520 for_each_intel_crtc(dev, intel_crtc) {
4521 struct drm_crtc_commit *commit;
4522 struct intel_crtc_state *crtc_state;
4524 ret = drm_modeset_lock_single_interruptible(&intel_crtc->base.mutex);
4528 crtc_state = to_intel_crtc_state(intel_crtc->base.state);
4529 commit = crtc_state->base.commit;
4531 ret = wait_for_completion_interruptible(&commit->hw_done);
4533 ret = wait_for_completion_interruptible(&commit->flip_done);
4536 if (!ret && crtc_state->base.active) {
4537 DRM_DEBUG_KMS("Re-arming FIFO underruns on pipe %c\n",
4538 pipe_name(intel_crtc->pipe));
4540 intel_crtc_arm_fifo_underrun(intel_crtc, crtc_state);
4543 drm_modeset_unlock(&intel_crtc->base.mutex);
4549 ret = intel_fbc_reset_underrun(dev_priv);
4556 static const struct file_operations i915_fifo_underrun_reset_ops = {
4557 .owner = THIS_MODULE,
4558 .open = simple_open,
4559 .write = i915_fifo_underrun_reset_write,
4560 .llseek = default_llseek,
4563 static const struct drm_info_list i915_debugfs_list[] = {
4564 {"i915_capabilities", i915_capabilities, 0},
4565 {"i915_gem_objects", i915_gem_object_info, 0},
4566 {"i915_gem_gtt", i915_gem_gtt_info, 0},
4567 {"i915_gem_stolen", i915_gem_stolen_list_info },
4568 {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
4569 {"i915_gem_interrupt", i915_interrupt_info, 0},
4570 {"i915_gem_batch_pool", i915_gem_batch_pool_info, 0},
4571 {"i915_guc_info", i915_guc_info, 0},
4572 {"i915_guc_load_status", i915_guc_load_status_info, 0},
4573 {"i915_guc_log_dump", i915_guc_log_dump, 0},
4574 {"i915_guc_load_err_log_dump", i915_guc_log_dump, 0, (void *)1},
4575 {"i915_guc_stage_pool", i915_guc_stage_pool, 0},
4576 {"i915_huc_load_status", i915_huc_load_status_info, 0},
4577 {"i915_frequency_info", i915_frequency_info, 0},
4578 {"i915_hangcheck_info", i915_hangcheck_info, 0},
4579 {"i915_reset_info", i915_reset_info, 0},
4580 {"i915_drpc_info", i915_drpc_info, 0},
4581 {"i915_emon_status", i915_emon_status, 0},
4582 {"i915_ring_freq_table", i915_ring_freq_table, 0},
4583 {"i915_frontbuffer_tracking", i915_frontbuffer_tracking, 0},
4584 {"i915_fbc_status", i915_fbc_status, 0},
4585 {"i915_ips_status", i915_ips_status, 0},
4586 {"i915_sr_status", i915_sr_status, 0},
4587 {"i915_opregion", i915_opregion, 0},
4588 {"i915_vbt", i915_vbt, 0},
4589 {"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
4590 {"i915_context_status", i915_context_status, 0},
4591 {"i915_forcewake_domains", i915_forcewake_domains, 0},
4592 {"i915_swizzle_info", i915_swizzle_info, 0},
4593 {"i915_llc", i915_llc, 0},
4594 {"i915_edp_psr_status", i915_edp_psr_status, 0},
4595 {"i915_energy_uJ", i915_energy_uJ, 0},
4596 {"i915_runtime_pm_status", i915_runtime_pm_status, 0},
4597 {"i915_power_domain_info", i915_power_domain_info, 0},
4598 {"i915_dmc_info", i915_dmc_info, 0},
4599 {"i915_display_info", i915_display_info, 0},
4600 {"i915_engine_info", i915_engine_info, 0},
4601 {"i915_rcs_topology", i915_rcs_topology, 0},
4602 {"i915_shrinker_info", i915_shrinker_info, 0},
4603 {"i915_shared_dplls_info", i915_shared_dplls_info, 0},
4604 {"i915_dp_mst_info", i915_dp_mst_info, 0},
4605 {"i915_wa_registers", i915_wa_registers, 0},
4606 {"i915_ddb_info", i915_ddb_info, 0},
4607 {"i915_sseu_status", i915_sseu_status, 0},
4608 {"i915_drrs_status", i915_drrs_status, 0},
4609 {"i915_rps_boost_info", i915_rps_boost_info, 0},
4611 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
4613 static const struct i915_debugfs_files {
4615 const struct file_operations *fops;
4616 } i915_debugfs_files[] = {
4617 {"i915_wedged", &i915_wedged_fops},
4618 {"i915_cache_sharing", &i915_cache_sharing_fops},
4619 {"i915_gem_drop_caches", &i915_drop_caches_fops},
4620 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
4621 {"i915_error_state", &i915_error_state_fops},
4622 {"i915_gpu_info", &i915_gpu_info_fops},
4624 {"i915_fifo_underrun_reset", &i915_fifo_underrun_reset_ops},
4625 {"i915_pri_wm_latency", &i915_pri_wm_latency_fops},
4626 {"i915_spr_wm_latency", &i915_spr_wm_latency_fops},
4627 {"i915_cur_wm_latency", &i915_cur_wm_latency_fops},
4628 {"i915_fbc_false_color", &i915_fbc_false_color_fops},
4629 {"i915_dp_test_data", &i915_displayport_test_data_fops},
4630 {"i915_dp_test_type", &i915_displayport_test_type_fops},
4631 {"i915_dp_test_active", &i915_displayport_test_active_fops},
4632 {"i915_guc_log_level", &i915_guc_log_level_fops},
4633 {"i915_guc_log_relay", &i915_guc_log_relay_fops},
4634 {"i915_hpd_storm_ctl", &i915_hpd_storm_ctl_fops},
4635 {"i915_hpd_short_storm_ctl", &i915_hpd_short_storm_ctl_fops},
4636 {"i915_ipc_status", &i915_ipc_status_fops},
4637 {"i915_drrs_ctl", &i915_drrs_ctl_fops},
4638 {"i915_edp_psr_debug", &i915_edp_psr_debug_fops}
4641 int i915_debugfs_register(struct drm_i915_private *dev_priv)
4643 struct drm_minor *minor = dev_priv->drm.primary;
4647 ent = debugfs_create_file("i915_forcewake_user", S_IRUSR,
4648 minor->debugfs_root, to_i915(minor->dev),
4649 &i915_forcewake_fops);
4653 for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
4654 ent = debugfs_create_file(i915_debugfs_files[i].name,
4656 minor->debugfs_root,
4657 to_i915(minor->dev),
4658 i915_debugfs_files[i].fops);
4663 return drm_debugfs_create_files(i915_debugfs_list,
4664 I915_DEBUGFS_ENTRIES,
4665 minor->debugfs_root, minor);
4669 /* DPCD dump start address. */
4670 unsigned int offset;
4671 /* DPCD dump end address, inclusive. If unset, .size will be used. */
4673 /* DPCD dump size. Used if .end is unset. If unset, defaults to 1. */
4675 /* Only valid for eDP. */
4679 static const struct dpcd_block i915_dpcd_debug[] = {
4680 { .offset = DP_DPCD_REV, .size = DP_RECEIVER_CAP_SIZE },
4681 { .offset = DP_PSR_SUPPORT, .end = DP_PSR_CAPS },
4682 { .offset = DP_DOWNSTREAM_PORT_0, .size = 16 },
4683 { .offset = DP_LINK_BW_SET, .end = DP_EDP_CONFIGURATION_SET },
4684 { .offset = DP_SINK_COUNT, .end = DP_ADJUST_REQUEST_LANE2_3 },
4685 { .offset = DP_SET_POWER },
4686 { .offset = DP_EDP_DPCD_REV },
4687 { .offset = DP_EDP_GENERAL_CAP_1, .end = DP_EDP_GENERAL_CAP_3 },
4688 { .offset = DP_EDP_DISPLAY_CONTROL_REGISTER, .end = DP_EDP_BACKLIGHT_FREQ_CAP_MAX_LSB },
4689 { .offset = DP_EDP_DBC_MINIMUM_BRIGHTNESS_SET, .end = DP_EDP_DBC_MAXIMUM_BRIGHTNESS_SET },
4692 static int i915_dpcd_show(struct seq_file *m, void *data)
4694 struct drm_connector *connector = m->private;
4695 struct intel_dp *intel_dp =
4696 enc_to_intel_dp(&intel_attached_encoder(connector)->base);
4701 if (connector->status != connector_status_connected)
4704 for (i = 0; i < ARRAY_SIZE(i915_dpcd_debug); i++) {
4705 const struct dpcd_block *b = &i915_dpcd_debug[i];
4706 size_t size = b->end ? b->end - b->offset + 1 : (b->size ?: 1);
4709 connector->connector_type != DRM_MODE_CONNECTOR_eDP)
4712 /* low tech for now */
4713 if (WARN_ON(size > sizeof(buf)))
4716 err = drm_dp_dpcd_read(&intel_dp->aux, b->offset, buf, size);
4718 seq_printf(m, "%04x: ERROR %d\n", b->offset, (int)err);
4720 seq_printf(m, "%04x: %*ph\n", b->offset, (int)err, buf);
4725 DEFINE_SHOW_ATTRIBUTE(i915_dpcd);
4727 static int i915_panel_show(struct seq_file *m, void *data)
4729 struct drm_connector *connector = m->private;
4730 struct intel_dp *intel_dp =
4731 enc_to_intel_dp(&intel_attached_encoder(connector)->base);
4733 if (connector->status != connector_status_connected)
4736 seq_printf(m, "Panel power up delay: %d\n",
4737 intel_dp->panel_power_up_delay);
4738 seq_printf(m, "Panel power down delay: %d\n",
4739 intel_dp->panel_power_down_delay);
4740 seq_printf(m, "Backlight on delay: %d\n",
4741 intel_dp->backlight_on_delay);
4742 seq_printf(m, "Backlight off delay: %d\n",
4743 intel_dp->backlight_off_delay);
4747 DEFINE_SHOW_ATTRIBUTE(i915_panel);
4749 static int i915_hdcp_sink_capability_show(struct seq_file *m, void *data)
4751 struct drm_connector *connector = m->private;
4752 struct intel_connector *intel_connector = to_intel_connector(connector);
4754 if (connector->status != connector_status_connected)
4757 /* HDCP is supported by connector */
4758 if (!intel_connector->hdcp.shim)
4761 seq_printf(m, "%s:%d HDCP version: ", connector->name,
4762 connector->base.id);
4763 seq_printf(m, "%s ", !intel_hdcp_capable(intel_connector) ?
4764 "None" : "HDCP1.4");
4769 DEFINE_SHOW_ATTRIBUTE(i915_hdcp_sink_capability);
4771 static int i915_dsc_fec_support_show(struct seq_file *m, void *data)
4773 struct drm_connector *connector = m->private;
4774 struct drm_device *dev = connector->dev;
4775 struct drm_crtc *crtc;
4776 struct intel_dp *intel_dp;
4777 struct drm_modeset_acquire_ctx ctx;
4778 struct intel_crtc_state *crtc_state = NULL;
4780 bool try_again = false;
4782 drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE);
4786 ret = drm_modeset_lock(&dev->mode_config.connection_mutex,
4792 crtc = connector->state->crtc;
4793 if (connector->status != connector_status_connected || !crtc) {
4797 ret = drm_modeset_lock(&crtc->mutex, &ctx);
4798 if (ret == -EDEADLK) {
4799 ret = drm_modeset_backoff(&ctx);
4808 intel_dp = enc_to_intel_dp(&intel_attached_encoder(connector)->base);
4809 crtc_state = to_intel_crtc_state(crtc->state);
4810 seq_printf(m, "DSC_Enabled: %s\n",
4811 yesno(crtc_state->dsc_params.compression_enable));
4812 seq_printf(m, "DSC_Sink_Support: %s\n",
4813 yesno(drm_dp_sink_supports_dsc(intel_dp->dsc_dpcd)));
4814 if (!intel_dp_is_edp(intel_dp))
4815 seq_printf(m, "FEC_Sink_Support: %s\n",
4816 yesno(drm_dp_sink_supports_fec(intel_dp->fec_capable)));
4817 } while (try_again);
4819 drm_modeset_drop_locks(&ctx);
4820 drm_modeset_acquire_fini(&ctx);
4825 static ssize_t i915_dsc_fec_support_write(struct file *file,
4826 const char __user *ubuf,
4827 size_t len, loff_t *offp)
4829 bool dsc_enable = false;
4831 struct drm_connector *connector =
4832 ((struct seq_file *)file->private_data)->private;
4833 struct intel_encoder *encoder = intel_attached_encoder(connector);
4834 struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
4839 DRM_DEBUG_DRIVER("Copied %zu bytes from user to force DSC\n",
4842 ret = kstrtobool_from_user(ubuf, len, &dsc_enable);
4846 DRM_DEBUG_DRIVER("Got %s for DSC Enable\n",
4847 (dsc_enable) ? "true" : "false");
4848 intel_dp->force_dsc_en = dsc_enable;
4854 static int i915_dsc_fec_support_open(struct inode *inode,
4857 return single_open(file, i915_dsc_fec_support_show,
4861 static const struct file_operations i915_dsc_fec_support_fops = {
4862 .owner = THIS_MODULE,
4863 .open = i915_dsc_fec_support_open,
4865 .llseek = seq_lseek,
4866 .release = single_release,
4867 .write = i915_dsc_fec_support_write
4871 * i915_debugfs_connector_add - add i915 specific connector debugfs files
4872 * @connector: pointer to a registered drm_connector
4874 * Cleanup will be done by drm_connector_unregister() through a call to
4875 * drm_debugfs_connector_remove().
4877 * Returns 0 on success, negative error codes on error.
4879 int i915_debugfs_connector_add(struct drm_connector *connector)
4881 struct dentry *root = connector->debugfs_entry;
4882 struct drm_i915_private *dev_priv = to_i915(connector->dev);
4884 /* The connector must have been registered beforehands. */
4888 if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
4889 connector->connector_type == DRM_MODE_CONNECTOR_eDP)
4890 debugfs_create_file("i915_dpcd", S_IRUGO, root,
4891 connector, &i915_dpcd_fops);
4893 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
4894 debugfs_create_file("i915_panel_timings", S_IRUGO, root,
4895 connector, &i915_panel_fops);
4896 debugfs_create_file("i915_psr_sink_status", S_IRUGO, root,
4897 connector, &i915_psr_sink_status_fops);
4900 if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
4901 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
4902 connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) {
4903 debugfs_create_file("i915_hdcp_sink_capability", S_IRUGO, root,
4904 connector, &i915_hdcp_sink_capability_fops);
4907 if (INTEL_GEN(dev_priv) >= 10 &&
4908 (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
4909 connector->connector_type == DRM_MODE_CONNECTOR_eDP))
4910 debugfs_create_file("i915_dsc_fec_support", S_IRUGO, root,
4911 connector, &i915_dsc_fec_support_fops);