2 * Copyright © 2008 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 * Eric Anholt <eric@anholt.net>
25 * Keith Packard <keithp@keithp.com>
29 #include <linux/seq_file.h>
30 #include <linux/debugfs.h>
31 #include <linux/slab.h>
34 #include "intel_drv.h"
35 #include "intel_ringbuffer.h"
39 #define DRM_I915_RING_DEBUG 1
42 #if defined(CONFIG_DEBUG_FS)
52 static const char *yesno(int v)
54 return v ? "yes" : "no";
57 static int i915_capabilities(struct seq_file *m, void *data)
59 struct drm_info_node *node = (struct drm_info_node *) m->private;
60 struct drm_device *dev = node->minor->dev;
61 const struct intel_device_info *info = INTEL_INFO(dev);
63 seq_printf(m, "gen: %d\n", info->gen);
64 #define B(x) seq_printf(m, #x ": %s\n", yesno(info->x))
78 B(cursor_needs_physical);
80 B(overlay_needs_physical);
89 static const char *get_pin_flag(struct drm_i915_gem_object *obj)
91 if (obj->user_pin_count > 0)
93 else if (obj->pin_count > 0)
99 static const char *get_tiling_flag(struct drm_i915_gem_object *obj)
101 switch (obj->tiling_mode) {
103 case I915_TILING_NONE: return " ";
104 case I915_TILING_X: return "X";
105 case I915_TILING_Y: return "Y";
109 static const char *agp_type_str(int type)
112 case 0: return " uncached";
113 case 1: return " snooped";
119 describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
121 seq_printf(m, "%p: %s%s %8zd %04x %04x %d %d%s%s%s",
124 get_tiling_flag(obj),
126 obj->base.read_domains,
127 obj->base.write_domain,
128 obj->last_rendering_seqno,
129 obj->last_fenced_seqno,
130 agp_type_str(obj->agp_type == AGP_USER_CACHED_MEMORY),
131 obj->dirty ? " dirty" : "",
132 obj->madv == I915_MADV_DONTNEED ? " purgeable" : "");
134 seq_printf(m, " (name: %d)", obj->base.name);
135 if (obj->fence_reg != I915_FENCE_REG_NONE)
136 seq_printf(m, " (fence: %d)", obj->fence_reg);
137 if (obj->gtt_space != NULL)
138 seq_printf(m, " (gtt offset: %08x, size: %08x)",
139 obj->gtt_offset, (unsigned int)obj->gtt_space->size);
140 if (obj->pin_mappable || obj->fault_mappable) {
142 if (obj->pin_mappable)
144 if (obj->fault_mappable)
147 seq_printf(m, " (%s mappable)", s);
149 if (obj->ring != NULL)
150 seq_printf(m, " (%s)", obj->ring->name);
153 static int i915_gem_object_list_info(struct seq_file *m, void *data)
155 struct drm_info_node *node = (struct drm_info_node *) m->private;
156 uintptr_t list = (uintptr_t) node->info_ent->data;
157 struct list_head *head;
158 struct drm_device *dev = node->minor->dev;
159 drm_i915_private_t *dev_priv = dev->dev_private;
160 struct drm_i915_gem_object *obj;
161 size_t total_obj_size, total_gtt_size;
164 ret = mutex_lock_interruptible(&dev->struct_mutex);
170 seq_printf(m, "Active:\n");
171 head = &dev_priv->mm.active_list;
174 seq_printf(m, "Inactive:\n");
175 head = &dev_priv->mm.inactive_list;
178 seq_printf(m, "Pinned:\n");
179 head = &dev_priv->mm.pinned_list;
182 seq_printf(m, "Flushing:\n");
183 head = &dev_priv->mm.flushing_list;
185 case DEFERRED_FREE_LIST:
186 seq_printf(m, "Deferred free:\n");
187 head = &dev_priv->mm.deferred_free_list;
190 mutex_unlock(&dev->struct_mutex);
194 total_obj_size = total_gtt_size = count = 0;
195 list_for_each_entry(obj, head, mm_list) {
197 describe_obj(m, obj);
199 total_obj_size += obj->base.size;
200 total_gtt_size += obj->gtt_space->size;
203 mutex_unlock(&dev->struct_mutex);
205 seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
206 count, total_obj_size, total_gtt_size);
210 #define count_objects(list, member) do { \
211 list_for_each_entry(obj, list, member) { \
212 size += obj->gtt_space->size; \
214 if (obj->map_and_fenceable) { \
215 mappable_size += obj->gtt_space->size; \
221 static int i915_gem_object_info(struct seq_file *m, void* data)
223 struct drm_info_node *node = (struct drm_info_node *) m->private;
224 struct drm_device *dev = node->minor->dev;
225 struct drm_i915_private *dev_priv = dev->dev_private;
226 u32 count, mappable_count;
227 size_t size, mappable_size;
228 struct drm_i915_gem_object *obj;
231 ret = mutex_lock_interruptible(&dev->struct_mutex);
235 seq_printf(m, "%u objects, %zu bytes\n",
236 dev_priv->mm.object_count,
237 dev_priv->mm.object_memory);
239 size = count = mappable_size = mappable_count = 0;
240 count_objects(&dev_priv->mm.gtt_list, gtt_list);
241 seq_printf(m, "%u [%u] objects, %zu [%zu] bytes in gtt\n",
242 count, mappable_count, size, mappable_size);
244 size = count = mappable_size = mappable_count = 0;
245 count_objects(&dev_priv->mm.active_list, mm_list);
246 count_objects(&dev_priv->mm.flushing_list, mm_list);
247 seq_printf(m, " %u [%u] active objects, %zu [%zu] bytes\n",
248 count, mappable_count, size, mappable_size);
250 size = count = mappable_size = mappable_count = 0;
251 count_objects(&dev_priv->mm.pinned_list, mm_list);
252 seq_printf(m, " %u [%u] pinned objects, %zu [%zu] bytes\n",
253 count, mappable_count, size, mappable_size);
255 size = count = mappable_size = mappable_count = 0;
256 count_objects(&dev_priv->mm.inactive_list, mm_list);
257 seq_printf(m, " %u [%u] inactive objects, %zu [%zu] bytes\n",
258 count, mappable_count, size, mappable_size);
260 size = count = mappable_size = mappable_count = 0;
261 count_objects(&dev_priv->mm.deferred_free_list, mm_list);
262 seq_printf(m, " %u [%u] freed objects, %zu [%zu] bytes\n",
263 count, mappable_count, size, mappable_size);
265 size = count = mappable_size = mappable_count = 0;
266 list_for_each_entry(obj, &dev_priv->mm.gtt_list, gtt_list) {
267 if (obj->fault_mappable) {
268 size += obj->gtt_space->size;
271 if (obj->pin_mappable) {
272 mappable_size += obj->gtt_space->size;
276 seq_printf(m, "%u pinned mappable objects, %zu bytes\n",
277 mappable_count, mappable_size);
278 seq_printf(m, "%u fault mappable objects, %zu bytes\n",
281 seq_printf(m, "%zu [%zu] gtt total\n",
282 dev_priv->mm.gtt_total, dev_priv->mm.mappable_gtt_total);
284 mutex_unlock(&dev->struct_mutex);
289 static int i915_gem_gtt_info(struct seq_file *m, void* data)
291 struct drm_info_node *node = (struct drm_info_node *) m->private;
292 struct drm_device *dev = node->minor->dev;
293 struct drm_i915_private *dev_priv = dev->dev_private;
294 struct drm_i915_gem_object *obj;
295 size_t total_obj_size, total_gtt_size;
298 ret = mutex_lock_interruptible(&dev->struct_mutex);
302 total_obj_size = total_gtt_size = count = 0;
303 list_for_each_entry(obj, &dev_priv->mm.gtt_list, gtt_list) {
305 describe_obj(m, obj);
307 total_obj_size += obj->base.size;
308 total_gtt_size += obj->gtt_space->size;
312 mutex_unlock(&dev->struct_mutex);
314 seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
315 count, total_obj_size, total_gtt_size);
321 static int i915_gem_pageflip_info(struct seq_file *m, void *data)
323 struct drm_info_node *node = (struct drm_info_node *) m->private;
324 struct drm_device *dev = node->minor->dev;
326 struct intel_crtc *crtc;
328 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
329 const char *pipe = crtc->pipe ? "B" : "A";
330 const char *plane = crtc->plane ? "B" : "A";
331 struct intel_unpin_work *work;
333 spin_lock_irqsave(&dev->event_lock, flags);
334 work = crtc->unpin_work;
336 seq_printf(m, "No flip due on pipe %s (plane %s)\n",
339 if (!work->pending) {
340 seq_printf(m, "Flip queued on pipe %s (plane %s)\n",
343 seq_printf(m, "Flip pending (waiting for vsync) on pipe %s (plane %s)\n",
346 if (work->enable_stall_check)
347 seq_printf(m, "Stall check enabled, ");
349 seq_printf(m, "Stall check waiting for page flip ioctl, ");
350 seq_printf(m, "%d prepares\n", work->pending);
352 if (work->old_fb_obj) {
353 struct drm_i915_gem_object *obj = work->old_fb_obj;
355 seq_printf(m, "Old framebuffer gtt_offset 0x%08x\n", obj->gtt_offset);
357 if (work->pending_flip_obj) {
358 struct drm_i915_gem_object *obj = work->pending_flip_obj;
360 seq_printf(m, "New framebuffer gtt_offset 0x%08x\n", obj->gtt_offset);
363 spin_unlock_irqrestore(&dev->event_lock, flags);
369 static int i915_gem_request_info(struct seq_file *m, void *data)
371 struct drm_info_node *node = (struct drm_info_node *) m->private;
372 struct drm_device *dev = node->minor->dev;
373 drm_i915_private_t *dev_priv = dev->dev_private;
374 struct drm_i915_gem_request *gem_request;
377 ret = mutex_lock_interruptible(&dev->struct_mutex);
382 if (!list_empty(&dev_priv->ring[RCS].request_list)) {
383 seq_printf(m, "Render requests:\n");
384 list_for_each_entry(gem_request,
385 &dev_priv->ring[RCS].request_list,
387 seq_printf(m, " %d @ %d\n",
389 (int) (jiffies - gem_request->emitted_jiffies));
393 if (!list_empty(&dev_priv->ring[VCS].request_list)) {
394 seq_printf(m, "BSD requests:\n");
395 list_for_each_entry(gem_request,
396 &dev_priv->ring[VCS].request_list,
398 seq_printf(m, " %d @ %d\n",
400 (int) (jiffies - gem_request->emitted_jiffies));
404 if (!list_empty(&dev_priv->ring[BCS].request_list)) {
405 seq_printf(m, "BLT requests:\n");
406 list_for_each_entry(gem_request,
407 &dev_priv->ring[BCS].request_list,
409 seq_printf(m, " %d @ %d\n",
411 (int) (jiffies - gem_request->emitted_jiffies));
415 mutex_unlock(&dev->struct_mutex);
418 seq_printf(m, "No requests\n");
423 static void i915_ring_seqno_info(struct seq_file *m,
424 struct intel_ring_buffer *ring)
426 if (ring->get_seqno) {
427 seq_printf(m, "Current sequence (%s): %d\n",
428 ring->name, ring->get_seqno(ring));
429 seq_printf(m, "Waiter sequence (%s): %d\n",
430 ring->name, ring->waiting_seqno);
431 seq_printf(m, "IRQ sequence (%s): %d\n",
432 ring->name, ring->irq_seqno);
436 static int i915_gem_seqno_info(struct seq_file *m, void *data)
438 struct drm_info_node *node = (struct drm_info_node *) m->private;
439 struct drm_device *dev = node->minor->dev;
440 drm_i915_private_t *dev_priv = dev->dev_private;
443 ret = mutex_lock_interruptible(&dev->struct_mutex);
447 for (i = 0; i < I915_NUM_RINGS; i++)
448 i915_ring_seqno_info(m, &dev_priv->ring[i]);
450 mutex_unlock(&dev->struct_mutex);
456 static int i915_interrupt_info(struct seq_file *m, void *data)
458 struct drm_info_node *node = (struct drm_info_node *) m->private;
459 struct drm_device *dev = node->minor->dev;
460 drm_i915_private_t *dev_priv = dev->dev_private;
463 ret = mutex_lock_interruptible(&dev->struct_mutex);
467 if (!HAS_PCH_SPLIT(dev)) {
468 seq_printf(m, "Interrupt enable: %08x\n",
470 seq_printf(m, "Interrupt identity: %08x\n",
472 seq_printf(m, "Interrupt mask: %08x\n",
474 seq_printf(m, "Pipe A stat: %08x\n",
475 I915_READ(PIPEASTAT));
476 seq_printf(m, "Pipe B stat: %08x\n",
477 I915_READ(PIPEBSTAT));
479 seq_printf(m, "North Display Interrupt enable: %08x\n",
481 seq_printf(m, "North Display Interrupt identity: %08x\n",
483 seq_printf(m, "North Display Interrupt mask: %08x\n",
485 seq_printf(m, "South Display Interrupt enable: %08x\n",
487 seq_printf(m, "South Display Interrupt identity: %08x\n",
489 seq_printf(m, "South Display Interrupt mask: %08x\n",
491 seq_printf(m, "Graphics Interrupt enable: %08x\n",
493 seq_printf(m, "Graphics Interrupt identity: %08x\n",
495 seq_printf(m, "Graphics Interrupt mask: %08x\n",
498 seq_printf(m, "Interrupts received: %d\n",
499 atomic_read(&dev_priv->irq_received));
500 for (i = 0; i < I915_NUM_RINGS; i++) {
502 seq_printf(m, "Graphics Interrupt mask (%s): %08x\n",
503 dev_priv->ring[i].name,
504 I915_READ_IMR(&dev_priv->ring[i]));
506 i915_ring_seqno_info(m, &dev_priv->ring[i]);
508 mutex_unlock(&dev->struct_mutex);
513 static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
515 struct drm_info_node *node = (struct drm_info_node *) m->private;
516 struct drm_device *dev = node->minor->dev;
517 drm_i915_private_t *dev_priv = dev->dev_private;
520 ret = mutex_lock_interruptible(&dev->struct_mutex);
524 seq_printf(m, "Reserved fences = %d\n", dev_priv->fence_reg_start);
525 seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
526 for (i = 0; i < dev_priv->num_fence_regs; i++) {
527 struct drm_i915_gem_object *obj = dev_priv->fence_regs[i].obj;
529 seq_printf(m, "Fenced object[%2d] = ", i);
531 seq_printf(m, "unused");
533 describe_obj(m, obj);
537 mutex_unlock(&dev->struct_mutex);
541 static int i915_hws_info(struct seq_file *m, void *data)
543 struct drm_info_node *node = (struct drm_info_node *) m->private;
544 struct drm_device *dev = node->minor->dev;
545 drm_i915_private_t *dev_priv = dev->dev_private;
546 struct intel_ring_buffer *ring;
550 ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
551 hws = (volatile u32 *)ring->status_page.page_addr;
555 for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
556 seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
558 hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
563 static void i915_dump_object(struct seq_file *m,
564 struct io_mapping *mapping,
565 struct drm_i915_gem_object *obj)
567 int page, page_count, i;
569 page_count = obj->base.size / PAGE_SIZE;
570 for (page = 0; page < page_count; page++) {
571 u32 *mem = io_mapping_map_wc(mapping,
572 obj->gtt_offset + page * PAGE_SIZE);
573 for (i = 0; i < PAGE_SIZE; i += 4)
574 seq_printf(m, "%08x : %08x\n", i, mem[i / 4]);
575 io_mapping_unmap(mem);
579 static int i915_batchbuffer_info(struct seq_file *m, void *data)
581 struct drm_info_node *node = (struct drm_info_node *) m->private;
582 struct drm_device *dev = node->minor->dev;
583 drm_i915_private_t *dev_priv = dev->dev_private;
584 struct drm_i915_gem_object *obj;
587 ret = mutex_lock_interruptible(&dev->struct_mutex);
591 list_for_each_entry(obj, &dev_priv->mm.active_list, mm_list) {
592 if (obj->base.read_domains & I915_GEM_DOMAIN_COMMAND) {
593 seq_printf(m, "--- gtt_offset = 0x%08x\n", obj->gtt_offset);
594 i915_dump_object(m, dev_priv->mm.gtt_mapping, obj);
598 mutex_unlock(&dev->struct_mutex);
602 static int i915_ringbuffer_data(struct seq_file *m, void *data)
604 struct drm_info_node *node = (struct drm_info_node *) m->private;
605 struct drm_device *dev = node->minor->dev;
606 drm_i915_private_t *dev_priv = dev->dev_private;
607 struct intel_ring_buffer *ring;
610 ret = mutex_lock_interruptible(&dev->struct_mutex);
614 ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
616 seq_printf(m, "No ringbuffer setup\n");
618 u8 *virt = ring->virtual_start;
621 for (off = 0; off < ring->size; off += 4) {
622 uint32_t *ptr = (uint32_t *)(virt + off);
623 seq_printf(m, "%08x : %08x\n", off, *ptr);
626 mutex_unlock(&dev->struct_mutex);
631 static int i915_ringbuffer_info(struct seq_file *m, void *data)
633 struct drm_info_node *node = (struct drm_info_node *) m->private;
634 struct drm_device *dev = node->minor->dev;
635 drm_i915_private_t *dev_priv = dev->dev_private;
636 struct intel_ring_buffer *ring;
638 ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
642 seq_printf(m, "Ring %s:\n", ring->name);
643 seq_printf(m, " Head : %08x\n", I915_READ_HEAD(ring) & HEAD_ADDR);
644 seq_printf(m, " Tail : %08x\n", I915_READ_TAIL(ring) & TAIL_ADDR);
645 seq_printf(m, " Size : %08x\n", ring->size);
646 seq_printf(m, " Active : %08x\n", intel_ring_get_active_head(ring));
647 seq_printf(m, " NOPID : %08x\n", I915_READ_NOPID(ring));
649 seq_printf(m, " Sync 0 : %08x\n", I915_READ_SYNC_0(ring));
650 seq_printf(m, " Sync 1 : %08x\n", I915_READ_SYNC_1(ring));
652 seq_printf(m, " Control : %08x\n", I915_READ_CTL(ring));
653 seq_printf(m, " Start : %08x\n", I915_READ_START(ring));
658 static const char *ring_str(int ring)
661 case RING_RENDER: return " render";
662 case RING_BSD: return " bsd";
663 case RING_BLT: return " blt";
668 static const char *pin_flag(int pinned)
678 static const char *tiling_flag(int tiling)
682 case I915_TILING_NONE: return "";
683 case I915_TILING_X: return " X";
684 case I915_TILING_Y: return " Y";
688 static const char *dirty_flag(int dirty)
690 return dirty ? " dirty" : "";
693 static const char *purgeable_flag(int purgeable)
695 return purgeable ? " purgeable" : "";
698 static void print_error_buffers(struct seq_file *m,
700 struct drm_i915_error_buffer *err,
703 seq_printf(m, "%s [%d]:\n", name, count);
706 seq_printf(m, " %08x %8zd %04x %04x %08x%s%s%s%s%s%s",
712 pin_flag(err->pinned),
713 tiling_flag(err->tiling),
714 dirty_flag(err->dirty),
715 purgeable_flag(err->purgeable),
717 agp_type_str(err->agp_type));
720 seq_printf(m, " (name: %d)", err->name);
721 if (err->fence_reg != I915_FENCE_REG_NONE)
722 seq_printf(m, " (fence: %d)", err->fence_reg);
729 static int i915_error_state(struct seq_file *m, void *unused)
731 struct drm_info_node *node = (struct drm_info_node *) m->private;
732 struct drm_device *dev = node->minor->dev;
733 drm_i915_private_t *dev_priv = dev->dev_private;
734 struct drm_i915_error_state *error;
736 int i, page, offset, elt;
738 spin_lock_irqsave(&dev_priv->error_lock, flags);
739 if (!dev_priv->first_error) {
740 seq_printf(m, "no error state collected\n");
744 error = dev_priv->first_error;
746 seq_printf(m, "Time: %ld s %ld us\n", error->time.tv_sec,
747 error->time.tv_usec);
748 seq_printf(m, "PCI ID: 0x%04x\n", dev->pci_device);
749 seq_printf(m, "EIR: 0x%08x\n", error->eir);
750 seq_printf(m, "PGTBL_ER: 0x%08x\n", error->pgtbl_er);
751 if (INTEL_INFO(dev)->gen >= 6) {
752 seq_printf(m, "ERROR: 0x%08x\n", error->error);
753 seq_printf(m, "Blitter command stream:\n");
754 seq_printf(m, " ACTHD: 0x%08x\n", error->bcs_acthd);
755 seq_printf(m, " IPEIR: 0x%08x\n", error->bcs_ipeir);
756 seq_printf(m, " IPEHR: 0x%08x\n", error->bcs_ipehr);
757 seq_printf(m, " INSTDONE: 0x%08x\n", error->bcs_instdone);
758 seq_printf(m, " seqno: 0x%08x\n", error->bcs_seqno);
759 seq_printf(m, "Video (BSD) command stream:\n");
760 seq_printf(m, " ACTHD: 0x%08x\n", error->vcs_acthd);
761 seq_printf(m, " IPEIR: 0x%08x\n", error->vcs_ipeir);
762 seq_printf(m, " IPEHR: 0x%08x\n", error->vcs_ipehr);
763 seq_printf(m, " INSTDONE: 0x%08x\n", error->vcs_instdone);
764 seq_printf(m, " seqno: 0x%08x\n", error->vcs_seqno);
766 seq_printf(m, "Render command stream:\n");
767 seq_printf(m, " ACTHD: 0x%08x\n", error->acthd);
768 seq_printf(m, " IPEIR: 0x%08x\n", error->ipeir);
769 seq_printf(m, " IPEHR: 0x%08x\n", error->ipehr);
770 seq_printf(m, " INSTDONE: 0x%08x\n", error->instdone);
771 if (INTEL_INFO(dev)->gen >= 4) {
772 seq_printf(m, " INSTDONE1: 0x%08x\n", error->instdone1);
773 seq_printf(m, " INSTPS: 0x%08x\n", error->instps);
775 seq_printf(m, " INSTPM: 0x%08x\n", error->instpm);
776 seq_printf(m, " seqno: 0x%08x\n", error->seqno);
778 for (i = 0; i < 16; i++)
779 seq_printf(m, " fence[%d] = %08llx\n", i, error->fence[i]);
781 if (error->active_bo)
782 print_error_buffers(m, "Active",
784 error->active_bo_count);
786 if (error->pinned_bo)
787 print_error_buffers(m, "Pinned",
789 error->pinned_bo_count);
791 for (i = 0; i < ARRAY_SIZE(error->batchbuffer); i++) {
792 if (error->batchbuffer[i]) {
793 struct drm_i915_error_object *obj = error->batchbuffer[i];
795 seq_printf(m, "%s --- gtt_offset = 0x%08x\n",
796 dev_priv->ring[i].name,
799 for (page = 0; page < obj->page_count; page++) {
800 for (elt = 0; elt < PAGE_SIZE/4; elt++) {
801 seq_printf(m, "%08x : %08x\n", offset, obj->pages[page][elt]);
808 if (error->ringbuffer) {
809 struct drm_i915_error_object *obj = error->ringbuffer;
811 seq_printf(m, "--- ringbuffer = 0x%08x\n", obj->gtt_offset);
813 for (page = 0; page < obj->page_count; page++) {
814 for (elt = 0; elt < PAGE_SIZE/4; elt++) {
815 seq_printf(m, "%08x : %08x\n", offset, obj->pages[page][elt]);
822 intel_overlay_print_error_state(m, error->overlay);
825 intel_display_print_error_state(m, dev, error->display);
828 spin_unlock_irqrestore(&dev_priv->error_lock, flags);
833 static int i915_rstdby_delays(struct seq_file *m, void *unused)
835 struct drm_info_node *node = (struct drm_info_node *) m->private;
836 struct drm_device *dev = node->minor->dev;
837 drm_i915_private_t *dev_priv = dev->dev_private;
838 u16 crstanddelay = I915_READ16(CRSTANDVID);
840 seq_printf(m, "w/ctx: %d, w/o ctx: %d\n", (crstanddelay >> 8) & 0x3f, (crstanddelay & 0x3f));
845 static int i915_cur_delayinfo(struct seq_file *m, void *unused)
847 struct drm_info_node *node = (struct drm_info_node *) m->private;
848 struct drm_device *dev = node->minor->dev;
849 drm_i915_private_t *dev_priv = dev->dev_private;
852 u16 rgvswctl = I915_READ16(MEMSWCTL);
853 u16 rgvstat = I915_READ16(MEMSTAT_ILK);
855 seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
856 seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
857 seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
859 seq_printf(m, "Current P-state: %d\n",
860 (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
861 } else if (IS_GEN6(dev)) {
862 u32 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
863 u32 rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
864 u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
867 /* RPSTAT1 is in the GT power well */
868 __gen6_force_wake_get(dev_priv);
870 seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
871 seq_printf(m, "RPSTAT1: 0x%08x\n", I915_READ(GEN6_RPSTAT1));
872 seq_printf(m, "Render p-state ratio: %d\n",
873 (gt_perf_status & 0xff00) >> 8);
874 seq_printf(m, "Render p-state VID: %d\n",
875 gt_perf_status & 0xff);
876 seq_printf(m, "Render p-state limit: %d\n",
877 rp_state_limits & 0xff);
879 max_freq = (rp_state_cap & 0xff0000) >> 16;
880 seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
883 max_freq = (rp_state_cap & 0xff00) >> 8;
884 seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
887 max_freq = rp_state_cap & 0xff;
888 seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
891 __gen6_force_wake_put(dev_priv);
893 seq_printf(m, "no P-state info available\n");
899 static int i915_delayfreq_table(struct seq_file *m, void *unused)
901 struct drm_info_node *node = (struct drm_info_node *) m->private;
902 struct drm_device *dev = node->minor->dev;
903 drm_i915_private_t *dev_priv = dev->dev_private;
907 for (i = 0; i < 16; i++) {
908 delayfreq = I915_READ(PXVFREQ_BASE + i * 4);
909 seq_printf(m, "P%02dVIDFREQ: 0x%08x (VID: %d)\n", i, delayfreq,
910 (delayfreq & PXVFREQ_PX_MASK) >> PXVFREQ_PX_SHIFT);
916 static inline int MAP_TO_MV(int map)
918 return 1250 - (map * 25);
921 static int i915_inttoext_table(struct seq_file *m, void *unused)
923 struct drm_info_node *node = (struct drm_info_node *) m->private;
924 struct drm_device *dev = node->minor->dev;
925 drm_i915_private_t *dev_priv = dev->dev_private;
929 for (i = 1; i <= 32; i++) {
930 inttoext = I915_READ(INTTOEXT_BASE_ILK + i * 4);
931 seq_printf(m, "INTTOEXT%02d: 0x%08x\n", i, inttoext);
937 static int i915_drpc_info(struct seq_file *m, void *unused)
939 struct drm_info_node *node = (struct drm_info_node *) m->private;
940 struct drm_device *dev = node->minor->dev;
941 drm_i915_private_t *dev_priv = dev->dev_private;
942 u32 rgvmodectl = I915_READ(MEMMODECTL);
943 u32 rstdbyctl = I915_READ(RSTDBYCTL);
944 u16 crstandvid = I915_READ16(CRSTANDVID);
946 seq_printf(m, "HD boost: %s\n", (rgvmodectl & MEMMODE_BOOST_EN) ?
948 seq_printf(m, "Boost freq: %d\n",
949 (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
950 MEMMODE_BOOST_FREQ_SHIFT);
951 seq_printf(m, "HW control enabled: %s\n",
952 rgvmodectl & MEMMODE_HWIDLE_EN ? "yes" : "no");
953 seq_printf(m, "SW control enabled: %s\n",
954 rgvmodectl & MEMMODE_SWMODE_EN ? "yes" : "no");
955 seq_printf(m, "Gated voltage change: %s\n",
956 rgvmodectl & MEMMODE_RCLK_GATE ? "yes" : "no");
957 seq_printf(m, "Starting frequency: P%d\n",
958 (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
959 seq_printf(m, "Max P-state: P%d\n",
960 (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
961 seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
962 seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
963 seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
964 seq_printf(m, "Render standby enabled: %s\n",
965 (rstdbyctl & RCX_SW_EXIT) ? "no" : "yes");
966 seq_printf(m, "Current RS state: ");
967 switch (rstdbyctl & RSX_STATUS_MASK) {
969 seq_printf(m, "on\n");
972 seq_printf(m, "RC1\n");
974 case RSX_STATUS_RC1E:
975 seq_printf(m, "RC1E\n");
978 seq_printf(m, "RS1\n");
981 seq_printf(m, "RS2 (RC6)\n");
984 seq_printf(m, "RC3 (RC6+)\n");
987 seq_printf(m, "unknown\n");
994 static int i915_fbc_status(struct seq_file *m, void *unused)
996 struct drm_info_node *node = (struct drm_info_node *) m->private;
997 struct drm_device *dev = node->minor->dev;
998 drm_i915_private_t *dev_priv = dev->dev_private;
1000 if (!I915_HAS_FBC(dev)) {
1001 seq_printf(m, "FBC unsupported on this chipset\n");
1005 if (intel_fbc_enabled(dev)) {
1006 seq_printf(m, "FBC enabled\n");
1008 seq_printf(m, "FBC disabled: ");
1009 switch (dev_priv->no_fbc_reason) {
1011 seq_printf(m, "no outputs");
1013 case FBC_STOLEN_TOO_SMALL:
1014 seq_printf(m, "not enough stolen memory");
1016 case FBC_UNSUPPORTED_MODE:
1017 seq_printf(m, "mode not supported");
1019 case FBC_MODE_TOO_LARGE:
1020 seq_printf(m, "mode too large");
1023 seq_printf(m, "FBC unsupported on plane");
1026 seq_printf(m, "scanout buffer not tiled");
1028 case FBC_MULTIPLE_PIPES:
1029 seq_printf(m, "multiple pipes are enabled");
1032 seq_printf(m, "unknown reason");
1034 seq_printf(m, "\n");
1039 static int i915_sr_status(struct seq_file *m, void *unused)
1041 struct drm_info_node *node = (struct drm_info_node *) m->private;
1042 struct drm_device *dev = node->minor->dev;
1043 drm_i915_private_t *dev_priv = dev->dev_private;
1044 bool sr_enabled = false;
1046 if (HAS_PCH_SPLIT(dev))
1047 sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
1048 else if (IS_CRESTLINE(dev) || IS_I945G(dev) || IS_I945GM(dev))
1049 sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
1050 else if (IS_I915GM(dev))
1051 sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
1052 else if (IS_PINEVIEW(dev))
1053 sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
1055 seq_printf(m, "self-refresh: %s\n",
1056 sr_enabled ? "enabled" : "disabled");
1061 static int i915_emon_status(struct seq_file *m, void *unused)
1063 struct drm_info_node *node = (struct drm_info_node *) m->private;
1064 struct drm_device *dev = node->minor->dev;
1065 drm_i915_private_t *dev_priv = dev->dev_private;
1066 unsigned long temp, chipset, gfx;
1069 ret = mutex_lock_interruptible(&dev->struct_mutex);
1073 temp = i915_mch_val(dev_priv);
1074 chipset = i915_chipset_val(dev_priv);
1075 gfx = i915_gfx_val(dev_priv);
1076 mutex_unlock(&dev->struct_mutex);
1078 seq_printf(m, "GMCH temp: %ld\n", temp);
1079 seq_printf(m, "Chipset power: %ld\n", chipset);
1080 seq_printf(m, "GFX power: %ld\n", gfx);
1081 seq_printf(m, "Total power: %ld\n", chipset + gfx);
1086 static int i915_gfxec(struct seq_file *m, void *unused)
1088 struct drm_info_node *node = (struct drm_info_node *) m->private;
1089 struct drm_device *dev = node->minor->dev;
1090 drm_i915_private_t *dev_priv = dev->dev_private;
1092 seq_printf(m, "GFXEC: %ld\n", (unsigned long)I915_READ(0x112f4));
1097 static int i915_opregion(struct seq_file *m, void *unused)
1099 struct drm_info_node *node = (struct drm_info_node *) m->private;
1100 struct drm_device *dev = node->minor->dev;
1101 drm_i915_private_t *dev_priv = dev->dev_private;
1102 struct intel_opregion *opregion = &dev_priv->opregion;
1105 ret = mutex_lock_interruptible(&dev->struct_mutex);
1109 if (opregion->header)
1110 seq_write(m, opregion->header, OPREGION_SIZE);
1112 mutex_unlock(&dev->struct_mutex);
1117 static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
1119 struct drm_info_node *node = (struct drm_info_node *) m->private;
1120 struct drm_device *dev = node->minor->dev;
1121 drm_i915_private_t *dev_priv = dev->dev_private;
1122 struct intel_fbdev *ifbdev;
1123 struct intel_framebuffer *fb;
1126 ret = mutex_lock_interruptible(&dev->mode_config.mutex);
1130 ifbdev = dev_priv->fbdev;
1131 fb = to_intel_framebuffer(ifbdev->helper.fb);
1133 seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, obj ",
1137 fb->base.bits_per_pixel);
1138 describe_obj(m, fb->obj);
1139 seq_printf(m, "\n");
1141 list_for_each_entry(fb, &dev->mode_config.fb_list, base.head) {
1142 if (&fb->base == ifbdev->helper.fb)
1145 seq_printf(m, "user size: %d x %d, depth %d, %d bpp, obj ",
1149 fb->base.bits_per_pixel);
1150 describe_obj(m, fb->obj);
1151 seq_printf(m, "\n");
1154 mutex_unlock(&dev->mode_config.mutex);
1160 i915_wedged_open(struct inode *inode,
1163 filp->private_data = inode->i_private;
1168 i915_wedged_read(struct file *filp,
1173 struct drm_device *dev = filp->private_data;
1174 drm_i915_private_t *dev_priv = dev->dev_private;
1178 len = snprintf(buf, sizeof (buf),
1180 atomic_read(&dev_priv->mm.wedged));
1182 if (len > sizeof (buf))
1185 return simple_read_from_buffer(ubuf, max, ppos, buf, len);
1189 i915_wedged_write(struct file *filp,
1190 const char __user *ubuf,
1194 struct drm_device *dev = filp->private_data;
1199 if (cnt > sizeof (buf) - 1)
1202 if (copy_from_user(buf, ubuf, cnt))
1206 val = simple_strtoul(buf, NULL, 0);
1209 DRM_INFO("Manually setting wedged to %d\n", val);
1210 i915_handle_error(dev, val);
1215 static const struct file_operations i915_wedged_fops = {
1216 .owner = THIS_MODULE,
1217 .open = i915_wedged_open,
1218 .read = i915_wedged_read,
1219 .write = i915_wedged_write,
1220 .llseek = default_llseek,
1223 /* As the drm_debugfs_init() routines are called before dev->dev_private is
1224 * allocated we need to hook into the minor for release. */
1226 drm_add_fake_info_node(struct drm_minor *minor,
1230 struct drm_info_node *node;
1232 node = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
1234 debugfs_remove(ent);
1238 node->minor = minor;
1240 node->info_ent = (void *) key;
1241 list_add(&node->list, &minor->debugfs_nodes.list);
1246 static int i915_wedged_create(struct dentry *root, struct drm_minor *minor)
1248 struct drm_device *dev = minor->dev;
1251 ent = debugfs_create_file("i915_wedged",
1256 return PTR_ERR(ent);
1258 return drm_add_fake_info_node(minor, ent, &i915_wedged_fops);
1261 static struct drm_info_list i915_debugfs_list[] = {
1262 {"i915_capabilities", i915_capabilities, 0, 0},
1263 {"i915_gem_objects", i915_gem_object_info, 0},
1264 {"i915_gem_gtt", i915_gem_gtt_info, 0},
1265 {"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
1266 {"i915_gem_flushing", i915_gem_object_list_info, 0, (void *) FLUSHING_LIST},
1267 {"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST},
1268 {"i915_gem_pinned", i915_gem_object_list_info, 0, (void *) PINNED_LIST},
1269 {"i915_gem_deferred_free", i915_gem_object_list_info, 0, (void *) DEFERRED_FREE_LIST},
1270 {"i915_gem_pageflip", i915_gem_pageflip_info, 0},
1271 {"i915_gem_request", i915_gem_request_info, 0},
1272 {"i915_gem_seqno", i915_gem_seqno_info, 0},
1273 {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
1274 {"i915_gem_interrupt", i915_interrupt_info, 0},
1275 {"i915_gem_hws", i915_hws_info, 0, (void *)RCS},
1276 {"i915_gem_hws_blt", i915_hws_info, 0, (void *)BCS},
1277 {"i915_gem_hws_bsd", i915_hws_info, 0, (void *)VCS},
1278 {"i915_ringbuffer_data", i915_ringbuffer_data, 0, (void *)RCS},
1279 {"i915_ringbuffer_info", i915_ringbuffer_info, 0, (void *)RCS},
1280 {"i915_bsd_ringbuffer_data", i915_ringbuffer_data, 0, (void *)VCS},
1281 {"i915_bsd_ringbuffer_info", i915_ringbuffer_info, 0, (void *)VCS},
1282 {"i915_blt_ringbuffer_data", i915_ringbuffer_data, 0, (void *)BCS},
1283 {"i915_blt_ringbuffer_info", i915_ringbuffer_info, 0, (void *)BCS},
1284 {"i915_batchbuffers", i915_batchbuffer_info, 0},
1285 {"i915_error_state", i915_error_state, 0},
1286 {"i915_rstdby_delays", i915_rstdby_delays, 0},
1287 {"i915_cur_delayinfo", i915_cur_delayinfo, 0},
1288 {"i915_delayfreq_table", i915_delayfreq_table, 0},
1289 {"i915_inttoext_table", i915_inttoext_table, 0},
1290 {"i915_drpc_info", i915_drpc_info, 0},
1291 {"i915_emon_status", i915_emon_status, 0},
1292 {"i915_gfxec", i915_gfxec, 0},
1293 {"i915_fbc_status", i915_fbc_status, 0},
1294 {"i915_sr_status", i915_sr_status, 0},
1295 {"i915_opregion", i915_opregion, 0},
1296 {"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
1298 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
1300 int i915_debugfs_init(struct drm_minor *minor)
1304 ret = i915_wedged_create(minor->debugfs_root, minor);
1308 return drm_debugfs_create_files(i915_debugfs_list,
1309 I915_DEBUGFS_ENTRIES,
1310 minor->debugfs_root, minor);
1313 void i915_debugfs_cleanup(struct drm_minor *minor)
1315 drm_debugfs_remove_files(i915_debugfs_list,
1316 I915_DEBUGFS_ENTRIES, minor);
1317 drm_debugfs_remove_files((struct drm_info_list *) &i915_wedged_fops,
1321 #endif /* CONFIG_DEBUG_FS */