drivers/gpu/drm/i915/i915_debugfs.c

   1 /*
   2  * Copyright © 2008 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Eric Anholt <eric@anholt.net>
  25  *    Keith Packard <keithp@keithp.com>
  26  *
  27  */
  28
  29 #include <linux/seq_file.h>
  30 #include <linux/debugfs.h>
  31 #include <linux/slab.h>
  32 #include "drmP.h"
  33 #include "drm.h"
  34 #include "intel_drv.h"
  35 #include "intel_ringbuffer.h"
  36 #include "i915_drm.h"
  37 #include "i915_drv.h"
  38
  39 #define DRM_I915_RING_DEBUG 1
  40
  41
  42 #if defined(CONFIG_DEBUG_FS)
  43
  44 enum {
  45         ACTIVE_LIST,
  46         FLUSHING_LIST,
  47         INACTIVE_LIST,
  48         PINNED_LIST,
  49         DEFERRED_FREE_LIST,
  50 };
  51
  52 static const char *yesno(int v)
  53 {
  54         return v ? "yes" : "no";
  55 }
  56
  57 static int i915_capabilities(struct seq_file *m, void *data)
  58 {
  59         struct drm_info_node *node = (struct drm_info_node *) m->private;
  60         struct drm_device *dev = node->minor->dev;
  61         const struct intel_device_info *info = INTEL_INFO(dev);
  62
  63         seq_printf(m, "gen: %d\n", info->gen);
  64 #define B(x) seq_printf(m, #x ": %s\n", yesno(info->x))
  65         B(is_mobile);
  66         B(is_i85x);
  67         B(is_i915g);
  68         B(is_i945gm);
  69         B(is_g33);
  70         B(need_gfx_hws);
  71         B(is_g4x);
  72         B(is_pineview);
  73         B(is_broadwater);
  74         B(is_crestline);
  75         B(has_fbc);
  76         B(has_rc6);
  77         B(has_pipe_cxsr);
  78         B(has_hotplug);
  79         B(cursor_needs_physical);
  80         B(has_overlay);
  81         B(overlay_needs_physical);
  82         B(supports_tv);
  83         B(has_bsd_ring);
  84         B(has_blt_ring);
  85 #undef B
  86
  87         return 0;
  88 }
  89
  90 static const char *get_pin_flag(struct drm_i915_gem_object *obj_priv)
  91 {
  92         if (obj_priv->user_pin_count > 0)
  93                 return "P";
  94         else if (obj_priv->pin_count > 0)
  95                 return "p";
  96         else
  97                 return " ";
  98 }
  99
 100 static const char *get_tiling_flag(struct drm_i915_gem_object *obj_priv)
 101 {
 102     switch (obj_priv->tiling_mode) {
 103     default:
 104     case I915_TILING_NONE: return " ";
 105     case I915_TILING_X: return "X";
 106     case I915_TILING_Y: return "Y";
 107     }
 108 }
 109
 110 static void
 111 describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
 112 {
 113         seq_printf(m, "%p: %s%s %8zd %08x %08x %d%s%s",
 114                    &obj->base,
 115                    get_pin_flag(obj),
 116                    get_tiling_flag(obj),
 117                    obj->base.size,
 118                    obj->base.read_domains,
 119                    obj->base.write_domain,
 120                    obj->last_rendering_seqno,
 121                    obj->dirty ? " dirty" : "",
 122                    obj->madv == I915_MADV_DONTNEED ? " purgeable" : "");
 123         if (obj->base.name)
 124                 seq_printf(m, " (name: %d)", obj->base.name);
 125         if (obj->fence_reg != I915_FENCE_REG_NONE)
 126                 seq_printf(m, " (fence: %d)", obj->fence_reg);
 127         if (obj->gtt_space != NULL)
 128                 seq_printf(m, " (gtt offset: %08x, size: %08x)",
 129                            obj->gtt_offset, (unsigned int)obj->gtt_space->size);
 130         if (obj->pin_mappable || obj->fault_mappable)
 131                 seq_printf(m, " (mappable)");
 132         if (obj->ring != NULL)
 133                 seq_printf(m, " (%s)", obj->ring->name);
 134 }
 135
 136 static int i915_gem_object_list_info(struct seq_file *m, void *data)
 137 {
 138         struct drm_info_node *node = (struct drm_info_node *) m->private;
 139         uintptr_t list = (uintptr_t) node->info_ent->data;
 140         struct list_head *head;
 141         struct drm_device *dev = node->minor->dev;
 142         drm_i915_private_t *dev_priv = dev->dev_private;
 143         struct drm_i915_gem_object *obj_priv;
 144         size_t total_obj_size, total_gtt_size;
 145         int count, ret;
 146
 147         ret = mutex_lock_interruptible(&dev->struct_mutex);
 148         if (ret)
 149                 return ret;
 150
 151         switch (list) {
 152         case ACTIVE_LIST:
 153                 seq_printf(m, "Active:\n");
 154                 head = &dev_priv->mm.active_list;
 155                 break;
 156         case INACTIVE_LIST:
 157                 seq_printf(m, "Inactive:\n");
 158                 head = &dev_priv->mm.inactive_list;
 159                 break;
 160         case PINNED_LIST:
 161                 seq_printf(m, "Pinned:\n");
 162                 head = &dev_priv->mm.pinned_list;
 163                 break;
 164         case FLUSHING_LIST:
 165                 seq_printf(m, "Flushing:\n");
 166                 head = &dev_priv->mm.flushing_list;
 167                 break;
 168         case DEFERRED_FREE_LIST:
 169                 seq_printf(m, "Deferred free:\n");
 170                 head = &dev_priv->mm.deferred_free_list;
 171                 break;
 172         default:
 173                 mutex_unlock(&dev->struct_mutex);
 174                 return -EINVAL;
 175         }
 176
 177         total_obj_size = total_gtt_size = count = 0;
 178         list_for_each_entry(obj_priv, head, mm_list) {
 179                 seq_printf(m, "   ");
 180                 describe_obj(m, obj_priv);
 181                 seq_printf(m, "\n");
 182                 total_obj_size += obj_priv->base.size;
 183                 total_gtt_size += obj_priv->gtt_space->size;
 184                 count++;
 185         }
 186         mutex_unlock(&dev->struct_mutex);
 187
 188         seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
 189                    count, total_obj_size, total_gtt_size);
 190         return 0;
 191 }
 192
 193 static int i915_gem_object_info(struct seq_file *m, void* data)
 194 {
 195         struct drm_info_node *node = (struct drm_info_node *) m->private;
 196         struct drm_device *dev = node->minor->dev;
 197         struct drm_i915_private *dev_priv = dev->dev_private;
 198         int ret;
 199
 200         ret = mutex_lock_interruptible(&dev->struct_mutex);
 201         if (ret)
 202                 return ret;
 203
 204         seq_printf(m, "%u objects\n", dev_priv->mm.object_count);
 205         seq_printf(m, "%zu object bytes\n", dev_priv->mm.object_memory);
 206         seq_printf(m, "%u pinned\n", dev_priv->mm.pin_count);
 207         seq_printf(m, "%zu pin bytes\n", dev_priv->mm.pin_memory);
 208         seq_printf(m, "%u mappable objects in gtt\n", dev_priv->mm.gtt_mappable_count);
 209         seq_printf(m, "%zu mappable gtt bytes\n", dev_priv->mm.gtt_mappable_memory);
 210         seq_printf(m, "%zu mappable gtt used bytes\n", dev_priv->mm.mappable_gtt_used);
 211         seq_printf(m, "%zu mappable gtt total\n", dev_priv->mm.mappable_gtt_total);
 212         seq_printf(m, "%u objects in gtt\n", dev_priv->mm.gtt_count);
 213         seq_printf(m, "%zu gtt bytes\n", dev_priv->mm.gtt_memory);
 214         seq_printf(m, "%zu gtt total\n", dev_priv->mm.gtt_total);
 215
 216         mutex_unlock(&dev->struct_mutex);
 217
 218         return 0;
 219 }
 220
 221
 222 static int i915_gem_pageflip_info(struct seq_file *m, void *data)
 223 {
 224         struct drm_info_node *node = (struct drm_info_node *) m->private;
 225         struct drm_device *dev = node->minor->dev;
 226         unsigned long flags;
 227         struct intel_crtc *crtc;
 228
 229         list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
 230                 const char *pipe = crtc->pipe ? "B" : "A";
 231                 const char *plane = crtc->plane ? "B" : "A";
 232                 struct intel_unpin_work *work;
 233
 234                 spin_lock_irqsave(&dev->event_lock, flags);
 235                 work = crtc->unpin_work;
 236                 if (work == NULL) {
 237                         seq_printf(m, "No flip due on pipe %s (plane %s)\n",
 238                                    pipe, plane);
 239                 } else {
 240                         if (!work->pending) {
 241                                 seq_printf(m, "Flip queued on pipe %s (plane %s)\n",
 242                                            pipe, plane);
 243                         } else {
 244                                 seq_printf(m, "Flip pending (waiting for vsync) on pipe %s (plane %s)\n",
 245                                            pipe, plane);
 246                         }
 247                         if (work->enable_stall_check)
 248                                 seq_printf(m, "Stall check enabled, ");
 249                         else
 250                                 seq_printf(m, "Stall check waiting for page flip ioctl, ");
 251                         seq_printf(m, "%d prepares\n", work->pending);
 252
 253                         if (work->old_fb_obj) {
 254                                 struct drm_i915_gem_object *obj_priv = to_intel_bo(work->old_fb_obj);
 255                                 if(obj_priv)
 256                                         seq_printf(m, "Old framebuffer gtt_offset 0x%08x\n", obj_priv->gtt_offset );
 257                         }
 258                         if (work->pending_flip_obj) {
 259                                 struct drm_i915_gem_object *obj_priv = to_intel_bo(work->pending_flip_obj);
 260                                 if(obj_priv)
 261                                         seq_printf(m, "New framebuffer gtt_offset 0x%08x\n", obj_priv->gtt_offset );
 262                         }
 263                 }
 264                 spin_unlock_irqrestore(&dev->event_lock, flags);
 265         }
 266
 267         return 0;
 268 }
 269
 270 static int i915_gem_request_info(struct seq_file *m, void *data)
 271 {
 272         struct drm_info_node *node = (struct drm_info_node *) m->private;
 273         struct drm_device *dev = node->minor->dev;
 274         drm_i915_private_t *dev_priv = dev->dev_private;
 275         struct drm_i915_gem_request *gem_request;
 276         int ret, count;
 277
 278         ret = mutex_lock_interruptible(&dev->struct_mutex);
 279         if (ret)
 280                 return ret;
 281
 282         count = 0;
 283         if (!list_empty(&dev_priv->render_ring.request_list)) {
 284                 seq_printf(m, "Render requests:\n");
 285                 list_for_each_entry(gem_request,
 286                                     &dev_priv->render_ring.request_list,
 287                                     list) {
 288                         seq_printf(m, "    %d @ %d\n",
 289                                    gem_request->seqno,
 290                                    (int) (jiffies - gem_request->emitted_jiffies));
 291                 }
 292                 count++;
 293         }
 294         if (!list_empty(&dev_priv->bsd_ring.request_list)) {
 295                 seq_printf(m, "BSD requests:\n");
 296                 list_for_each_entry(gem_request,
 297                                     &dev_priv->bsd_ring.request_list,
 298                                     list) {
 299                         seq_printf(m, "    %d @ %d\n",
 300                                    gem_request->seqno,
 301                                    (int) (jiffies - gem_request->emitted_jiffies));
 302                 }
 303                 count++;
 304         }
 305         if (!list_empty(&dev_priv->blt_ring.request_list)) {
 306                 seq_printf(m, "BLT requests:\n");
 307                 list_for_each_entry(gem_request,
 308                                     &dev_priv->blt_ring.request_list,
 309                                     list) {
 310                         seq_printf(m, "    %d @ %d\n",
 311                                    gem_request->seqno,
 312                                    (int) (jiffies - gem_request->emitted_jiffies));
 313                 }
 314                 count++;
 315         }
 316         mutex_unlock(&dev->struct_mutex);
 317
 318         if (count == 0)
 319                 seq_printf(m, "No requests\n");
 320
 321         return 0;
 322 }
 323
 324 static void i915_ring_seqno_info(struct seq_file *m,
 325                                  struct intel_ring_buffer *ring)
 326 {
 327         if (ring->get_seqno) {
 328                 seq_printf(m, "Current sequence (%s): %d\n",
 329                            ring->name, ring->get_seqno(ring));
 330                 seq_printf(m, "Waiter sequence (%s):  %d\n",
 331                            ring->name, ring->waiting_seqno);
 332                 seq_printf(m, "IRQ sequence (%s):     %d\n",
 333                            ring->name, ring->irq_seqno);
 334         }
 335 }
 336
 337 static int i915_gem_seqno_info(struct seq_file *m, void *data)
 338 {
 339         struct drm_info_node *node = (struct drm_info_node *) m->private;
 340         struct drm_device *dev = node->minor->dev;
 341         drm_i915_private_t *dev_priv = dev->dev_private;
 342         int ret;
 343
 344         ret = mutex_lock_interruptible(&dev->struct_mutex);
 345         if (ret)
 346                 return ret;
 347
 348         i915_ring_seqno_info(m, &dev_priv->render_ring);
 349         i915_ring_seqno_info(m, &dev_priv->bsd_ring);
 350         i915_ring_seqno_info(m, &dev_priv->blt_ring);
 351
 352         mutex_unlock(&dev->struct_mutex);
 353
 354         return 0;
 355 }
 356
 357
 358 static int i915_interrupt_info(struct seq_file *m, void *data)
 359 {
 360         struct drm_info_node *node = (struct drm_info_node *) m->private;
 361         struct drm_device *dev = node->minor->dev;
 362         drm_i915_private_t *dev_priv = dev->dev_private;
 363         int ret;
 364
 365         ret = mutex_lock_interruptible(&dev->struct_mutex);
 366         if (ret)
 367                 return ret;
 368
 369         if (!HAS_PCH_SPLIT(dev)) {
 370                 seq_printf(m, "Interrupt enable:    %08x\n",
 371                            I915_READ(IER));
 372                 seq_printf(m, "Interrupt identity:  %08x\n",
 373                            I915_READ(IIR));
 374                 seq_printf(m, "Interrupt mask:      %08x\n",
 375                            I915_READ(IMR));
 376                 seq_printf(m, "Pipe A stat:         %08x\n",
 377                            I915_READ(PIPEASTAT));
 378                 seq_printf(m, "Pipe B stat:         %08x\n",
 379                            I915_READ(PIPEBSTAT));
 380         } else {
 381                 seq_printf(m, "North Display Interrupt enable:          %08x\n",
 382                            I915_READ(DEIER));
 383                 seq_printf(m, "North Display Interrupt identity:        %08x\n",
 384                            I915_READ(DEIIR));
 385                 seq_printf(m, "North Display Interrupt mask:            %08x\n",
 386                            I915_READ(DEIMR));
 387                 seq_printf(m, "South Display Interrupt enable:          %08x\n",
 388                            I915_READ(SDEIER));
 389                 seq_printf(m, "South Display Interrupt identity:        %08x\n",
 390                            I915_READ(SDEIIR));
 391                 seq_printf(m, "South Display Interrupt mask:            %08x\n",
 392                            I915_READ(SDEIMR));
 393                 seq_printf(m, "Graphics Interrupt enable:               %08x\n",
 394                            I915_READ(GTIER));
 395                 seq_printf(m, "Graphics Interrupt identity:             %08x\n",
 396                            I915_READ(GTIIR));
 397                 seq_printf(m, "Graphics Interrupt mask:         %08x\n",
 398                            I915_READ(GTIMR));
 399         }
 400         seq_printf(m, "Interrupts received: %d\n",
 401                    atomic_read(&dev_priv->irq_received));
 402         i915_ring_seqno_info(m, &dev_priv->render_ring);
 403         i915_ring_seqno_info(m, &dev_priv->bsd_ring);
 404         i915_ring_seqno_info(m, &dev_priv->blt_ring);
 405         mutex_unlock(&dev->struct_mutex);
 406
 407         return 0;
 408 }
 409
 410 static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
 411 {
 412         struct drm_info_node *node = (struct drm_info_node *) m->private;
 413         struct drm_device *dev = node->minor->dev;
 414         drm_i915_private_t *dev_priv = dev->dev_private;
 415         int i, ret;
 416
 417         ret = mutex_lock_interruptible(&dev->struct_mutex);
 418         if (ret)
 419                 return ret;
 420
 421         seq_printf(m, "Reserved fences = %d\n", dev_priv->fence_reg_start);
 422         seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
 423         for (i = 0; i < dev_priv->num_fence_regs; i++) {
 424                 struct drm_gem_object *obj = dev_priv->fence_regs[i].obj;
 425
 426                 seq_printf(m, "Fenced object[%2d] = ", i);
 427                 if (obj == NULL)
 428                         seq_printf(m, "unused");
 429                 else
 430                         describe_obj(m, to_intel_bo(obj));
 431                 seq_printf(m, "\n");
 432         }
 433         mutex_unlock(&dev->struct_mutex);
 434
 435         return 0;
 436 }
 437
 438 static int i915_hws_info(struct seq_file *m, void *data)
 439 {
 440         struct drm_info_node *node = (struct drm_info_node *) m->private;
 441         struct drm_device *dev = node->minor->dev;
 442         drm_i915_private_t *dev_priv = dev->dev_private;
 443         struct intel_ring_buffer *ring;
 444         volatile u32 *hws;
 445         int i;
 446
 447         switch ((uintptr_t)node->info_ent->data) {
 448         case RING_RENDER: ring = &dev_priv->render_ring; break;
 449         case RING_BSD: ring = &dev_priv->bsd_ring; break;
 450         case RING_BLT: ring = &dev_priv->blt_ring; break;
 451         default: return -EINVAL;
 452         }
 453
 454         hws = (volatile u32 *)ring->status_page.page_addr;
 455         if (hws == NULL)
 456                 return 0;
 457
 458         for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
 459                 seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
 460                            i * 4,
 461                            hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
 462         }
 463         return 0;
 464 }
 465
 466 static void i915_dump_object(struct seq_file *m,
 467                              struct io_mapping *mapping,
 468                              struct drm_i915_gem_object *obj_priv)
 469 {
 470         int page, page_count, i;
 471
 472         page_count = obj_priv->base.size / PAGE_SIZE;
 473         for (page = 0; page < page_count; page++) {
 474                 u32 *mem = io_mapping_map_wc(mapping,
 475                                              obj_priv->gtt_offset + page * PAGE_SIZE);
 476                 for (i = 0; i < PAGE_SIZE; i += 4)
 477                         seq_printf(m, "%08x :  %08x\n", i, mem[i / 4]);
 478                 io_mapping_unmap(mem);
 479         }
 480 }
 481
 482 static int i915_batchbuffer_info(struct seq_file *m, void *data)
 483 {
 484         struct drm_info_node *node = (struct drm_info_node *) m->private;
 485         struct drm_device *dev = node->minor->dev;
 486         drm_i915_private_t *dev_priv = dev->dev_private;
 487         struct drm_gem_object *obj;
 488         struct drm_i915_gem_object *obj_priv;
 489         int ret;
 490
 491         ret = mutex_lock_interruptible(&dev->struct_mutex);
 492         if (ret)
 493                 return ret;
 494
 495         list_for_each_entry(obj_priv, &dev_priv->mm.active_list, mm_list) {
 496                 obj = &obj_priv->base;
 497                 if (obj->read_domains & I915_GEM_DOMAIN_COMMAND) {
 498                     seq_printf(m, "--- gtt_offset = 0x%08x\n",
 499                                obj_priv->gtt_offset);
 500                     i915_dump_object(m, dev_priv->mm.gtt_mapping, obj_priv);
 501                 }
 502         }
 503
 504         mutex_unlock(&dev->struct_mutex);
 505
 506         return 0;
 507 }
 508
 509 static int i915_ringbuffer_data(struct seq_file *m, void *data)
 510 {
 511         struct drm_info_node *node = (struct drm_info_node *) m->private;
 512         struct drm_device *dev = node->minor->dev;
 513         drm_i915_private_t *dev_priv = dev->dev_private;
 514         struct intel_ring_buffer *ring;
 515         int ret;
 516
 517         switch ((uintptr_t)node->info_ent->data) {
 518         case RING_RENDER: ring = &dev_priv->render_ring; break;
 519         case RING_BSD: ring = &dev_priv->bsd_ring; break;
 520         case RING_BLT: ring = &dev_priv->blt_ring; break;
 521         default: return -EINVAL;
 522         }
 523
 524         ret = mutex_lock_interruptible(&dev->struct_mutex);
 525         if (ret)
 526                 return ret;
 527
 528         if (!ring->gem_object) {
 529                 seq_printf(m, "No ringbuffer setup\n");
 530         } else {
 531                 u8 *virt = ring->virtual_start;
 532                 uint32_t off;
 533
 534                 for (off = 0; off < ring->size; off += 4) {
 535                         uint32_t *ptr = (uint32_t *)(virt + off);
 536                         seq_printf(m, "%08x :  %08x\n", off, *ptr);
 537                 }
 538         }
 539         mutex_unlock(&dev->struct_mutex);
 540
 541         return 0;
 542 }
 543
 544 static int i915_ringbuffer_info(struct seq_file *m, void *data)
 545 {
 546         struct drm_info_node *node = (struct drm_info_node *) m->private;
 547         struct drm_device *dev = node->minor->dev;
 548         drm_i915_private_t *dev_priv = dev->dev_private;
 549         struct intel_ring_buffer *ring;
 550
 551         switch ((uintptr_t)node->info_ent->data) {
 552         case RING_RENDER: ring = &dev_priv->render_ring; break;
 553         case RING_BSD: ring = &dev_priv->bsd_ring; break;
 554         case RING_BLT: ring = &dev_priv->blt_ring; break;
 555         default: return -EINVAL;
 556         }
 557
 558         if (ring->size == 0)
 559             return 0;
 560
 561         seq_printf(m, "Ring %s:\n", ring->name);
 562         seq_printf(m, "  Head :    %08x\n", I915_READ_HEAD(ring) & HEAD_ADDR);
 563         seq_printf(m, "  Tail :    %08x\n", I915_READ_TAIL(ring) & TAIL_ADDR);
 564         seq_printf(m, "  Size :    %08x\n", ring->size);
 565         seq_printf(m, "  Active :  %08x\n", intel_ring_get_active_head(ring));
 566         seq_printf(m, "  Control : %08x\n", I915_READ_CTL(ring));
 567         seq_printf(m, "  Start :   %08x\n", I915_READ_START(ring));
 568
 569         return 0;
 570 }
 571
 572 static const char *ring_str(int ring)
 573 {
 574         switch (ring) {
 575         case RING_RENDER: return "render";
 576         case RING_BSD: return "bsd";
 577         case RING_BLT: return "blt";
 578         default: return "";
 579         }
 580 }
 581
 582 static const char *pin_flag(int pinned)
 583 {
 584         if (pinned > 0)
 585                 return " P";
 586         else if (pinned < 0)
 587                 return " p";
 588         else
 589                 return "";
 590 }
 591
 592 static const char *tiling_flag(int tiling)
 593 {
 594         switch (tiling) {
 595         default:
 596         case I915_TILING_NONE: return "";
 597         case I915_TILING_X: return " X";
 598         case I915_TILING_Y: return " Y";
 599         }
 600 }
 601
 602 static const char *dirty_flag(int dirty)
 603 {
 604         return dirty ? " dirty" : "";
 605 }
 606
 607 static const char *purgeable_flag(int purgeable)
 608 {
 609         return purgeable ? " purgeable" : "";
 610 }
 611
 612 static int i915_error_state(struct seq_file *m, void *unused)
 613 {
 614         struct drm_info_node *node = (struct drm_info_node *) m->private;
 615         struct drm_device *dev = node->minor->dev;
 616         drm_i915_private_t *dev_priv = dev->dev_private;
 617         struct drm_i915_error_state *error;
 618         unsigned long flags;
 619         int i, page, offset, elt;
 620
 621         spin_lock_irqsave(&dev_priv->error_lock, flags);
 622         if (!dev_priv->first_error) {
 623                 seq_printf(m, "no error state collected\n");
 624                 goto out;
 625         }
 626
 627         error = dev_priv->first_error;
 628
 629         seq_printf(m, "Time: %ld s %ld us\n", error->time.tv_sec,
 630                    error->time.tv_usec);
 631         seq_printf(m, "PCI ID: 0x%04x\n", dev->pci_device);
 632         seq_printf(m, "EIR: 0x%08x\n", error->eir);
 633         seq_printf(m, "PGTBL_ER: 0x%08x\n", error->pgtbl_er);
 634         if (INTEL_INFO(dev)->gen >= 6) {
 635                 seq_printf(m, "ERROR: 0x%08x\n", error->error);
 636                 seq_printf(m, "Blitter command stream:\n");
 637                 seq_printf(m, "  ACTHD:    0x%08x\n", error->bcs_acthd);
 638                 seq_printf(m, "  IPEIR:    0x%08x\n", error->bcs_ipeir);
 639                 seq_printf(m, "  IPEHR:    0x%08x\n", error->bcs_ipehr);
 640                 seq_printf(m, "  INSTDONE: 0x%08x\n", error->bcs_instdone);
 641                 seq_printf(m, "  seqno:    0x%08x\n", error->bcs_seqno);
 642                 seq_printf(m, "Video (BSD) command stream:\n");
 643                 seq_printf(m, "  ACTHD:    0x%08x\n", error->vcs_acthd);
 644                 seq_printf(m, "  IPEIR:    0x%08x\n", error->vcs_ipeir);
 645                 seq_printf(m, "  IPEHR:    0x%08x\n", error->vcs_ipehr);
 646                 seq_printf(m, "  INSTDONE: 0x%08x\n", error->vcs_instdone);
 647                 seq_printf(m, "  seqno:    0x%08x\n", error->vcs_seqno);
 648         }
 649         seq_printf(m, "Render command stream:\n");
 650         seq_printf(m, "  ACTHD: 0x%08x\n", error->acthd);
 651         seq_printf(m, "  IPEIR: 0x%08x\n", error->ipeir);
 652         seq_printf(m, "  IPEHR: 0x%08x\n", error->ipehr);
 653         seq_printf(m, "  INSTDONE: 0x%08x\n", error->instdone);
 654         if (INTEL_INFO(dev)->gen >= 4) {
 655                 seq_printf(m, "  INSTDONE1: 0x%08x\n", error->instdone1);
 656                 seq_printf(m, "  INSTPS: 0x%08x\n", error->instps);
 657         }
 658         seq_printf(m, "  INSTPM: 0x%08x\n", error->instpm);
 659         seq_printf(m, "  seqno: 0x%08x\n", error->seqno);
 660
 661         if (error->active_bo_count) {
 662                 seq_printf(m, "Buffers [%d]:\n", error->active_bo_count);
 663
 664                 for (i = 0; i < error->active_bo_count; i++) {
 665                         seq_printf(m, "  %08x %8zd %08x %08x %08x%s%s%s%s %s",
 666                                    error->active_bo[i].gtt_offset,
 667                                    error->active_bo[i].size,
 668                                    error->active_bo[i].read_domains,
 669                                    error->active_bo[i].write_domain,
 670                                    error->active_bo[i].seqno,
 671                                    pin_flag(error->active_bo[i].pinned),
 672                                    tiling_flag(error->active_bo[i].tiling),
 673                                    dirty_flag(error->active_bo[i].dirty),
 674                                    purgeable_flag(error->active_bo[i].purgeable),
 675                                    ring_str(error->active_bo[i].ring));
 676
 677                         if (error->active_bo[i].name)
 678                                 seq_printf(m, " (name: %d)", error->active_bo[i].name);
 679                         if (error->active_bo[i].fence_reg != I915_FENCE_REG_NONE)
 680                                 seq_printf(m, " (fence: %d)", error->active_bo[i].fence_reg);
 681
 682                         seq_printf(m, "\n");
 683                 }
 684         }
 685
 686         for (i = 0; i < ARRAY_SIZE(error->batchbuffer); i++) {
 687                 if (error->batchbuffer[i]) {
 688                         struct drm_i915_error_object *obj = error->batchbuffer[i];
 689
 690                         seq_printf(m, "--- gtt_offset = 0x%08x\n", obj->gtt_offset);
 691                         offset = 0;
 692                         for (page = 0; page < obj->page_count; page++) {
 693                                 for (elt = 0; elt < PAGE_SIZE/4; elt++) {
 694                                         seq_printf(m, "%08x :  %08x\n", offset, obj->pages[page][elt]);
 695                                         offset += 4;
 696                                 }
 697                         }
 698                 }
 699         }
 700
 701         if (error->ringbuffer) {
 702                 struct drm_i915_error_object *obj = error->ringbuffer;
 703
 704                 seq_printf(m, "--- ringbuffer = 0x%08x\n", obj->gtt_offset);
 705                 offset = 0;
 706                 for (page = 0; page < obj->page_count; page++) {
 707                         for (elt = 0; elt < PAGE_SIZE/4; elt++) {
 708                                 seq_printf(m, "%08x :  %08x\n", offset, obj->pages[page][elt]);
 709                                 offset += 4;
 710                         }
 711                 }
 712         }
 713
 714         if (error->overlay)
 715                 intel_overlay_print_error_state(m, error->overlay);
 716
 717 out:
 718         spin_unlock_irqrestore(&dev_priv->error_lock, flags);
 719
 720         return 0;
 721 }
 722
 723 static int i915_rstdby_delays(struct seq_file *m, void *unused)
 724 {
 725         struct drm_info_node *node = (struct drm_info_node *) m->private;
 726         struct drm_device *dev = node->minor->dev;
 727         drm_i915_private_t *dev_priv = dev->dev_private;
 728         u16 crstanddelay = I915_READ16(CRSTANDVID);
 729
 730         seq_printf(m, "w/ctx: %d, w/o ctx: %d\n", (crstanddelay >> 8) & 0x3f, (crstanddelay & 0x3f));
 731
 732         return 0;
 733 }
 734
 735 static int i915_cur_delayinfo(struct seq_file *m, void *unused)
 736 {
 737         struct drm_info_node *node = (struct drm_info_node *) m->private;
 738         struct drm_device *dev = node->minor->dev;
 739         drm_i915_private_t *dev_priv = dev->dev_private;
 740         u16 rgvswctl = I915_READ16(MEMSWCTL);
 741         u16 rgvstat = I915_READ16(MEMSTAT_ILK);
 742
 743         seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
 744         seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
 745         seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
 746                    MEMSTAT_VID_SHIFT);
 747         seq_printf(m, "Current P-state: %d\n",
 748                    (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
 749
 750         return 0;
 751 }
 752
 753 static int i915_delayfreq_table(struct seq_file *m, void *unused)
 754 {
 755         struct drm_info_node *node = (struct drm_info_node *) m->private;
 756         struct drm_device *dev = node->minor->dev;
 757         drm_i915_private_t *dev_priv = dev->dev_private;
 758         u32 delayfreq;
 759         int i;
 760
 761         for (i = 0; i < 16; i++) {
 762                 delayfreq = I915_READ(PXVFREQ_BASE + i * 4);
 763                 seq_printf(m, "P%02dVIDFREQ: 0x%08x (VID: %d)\n", i, delayfreq,
 764                            (delayfreq & PXVFREQ_PX_MASK) >> PXVFREQ_PX_SHIFT);
 765         }
 766
 767         return 0;
 768 }
 769
 770 static inline int MAP_TO_MV(int map)
 771 {
 772         return 1250 - (map * 25);
 773 }
 774
 775 static int i915_inttoext_table(struct seq_file *m, void *unused)
 776 {
 777         struct drm_info_node *node = (struct drm_info_node *) m->private;
 778         struct drm_device *dev = node->minor->dev;
 779         drm_i915_private_t *dev_priv = dev->dev_private;
 780         u32 inttoext;
 781         int i;
 782
 783         for (i = 1; i <= 32; i++) {
 784                 inttoext = I915_READ(INTTOEXT_BASE_ILK + i * 4);
 785                 seq_printf(m, "INTTOEXT%02d: 0x%08x\n", i, inttoext);
 786         }
 787
 788         return 0;
 789 }
 790
 791 static int i915_drpc_info(struct seq_file *m, void *unused)
 792 {
 793         struct drm_info_node *node = (struct drm_info_node *) m->private;
 794         struct drm_device *dev = node->minor->dev;
 795         drm_i915_private_t *dev_priv = dev->dev_private;
 796         u32 rgvmodectl = I915_READ(MEMMODECTL);
 797         u32 rstdbyctl = I915_READ(MCHBAR_RENDER_STANDBY);
 798         u16 crstandvid = I915_READ16(CRSTANDVID);
 799
 800         seq_printf(m, "HD boost: %s\n", (rgvmodectl & MEMMODE_BOOST_EN) ?
 801                    "yes" : "no");
 802         seq_printf(m, "Boost freq: %d\n",
 803                    (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
 804                    MEMMODE_BOOST_FREQ_SHIFT);
 805         seq_printf(m, "HW control enabled: %s\n",
 806                    rgvmodectl & MEMMODE_HWIDLE_EN ? "yes" : "no");
 807         seq_printf(m, "SW control enabled: %s\n",
 808                    rgvmodectl & MEMMODE_SWMODE_EN ? "yes" : "no");
 809         seq_printf(m, "Gated voltage change: %s\n",
 810                    rgvmodectl & MEMMODE_RCLK_GATE ? "yes" : "no");
 811         seq_printf(m, "Starting frequency: P%d\n",
 812                    (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
 813         seq_printf(m, "Max P-state: P%d\n",
 814                    (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
 815         seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
 816         seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
 817         seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
 818         seq_printf(m, "Render standby enabled: %s\n",
 819                    (rstdbyctl & RCX_SW_EXIT) ? "no" : "yes");
 820
 821         return 0;
 822 }
 823
 824 static int i915_fbc_status(struct seq_file *m, void *unused)
 825 {
 826         struct drm_info_node *node = (struct drm_info_node *) m->private;
 827         struct drm_device *dev = node->minor->dev;
 828         drm_i915_private_t *dev_priv = dev->dev_private;
 829
 830         if (!I915_HAS_FBC(dev)) {
 831                 seq_printf(m, "FBC unsupported on this chipset\n");
 832                 return 0;
 833         }
 834
 835         if (intel_fbc_enabled(dev)) {
 836                 seq_printf(m, "FBC enabled\n");
 837         } else {
 838                 seq_printf(m, "FBC disabled: ");
 839                 switch (dev_priv->no_fbc_reason) {
 840                 case FBC_NO_OUTPUT:
 841                         seq_printf(m, "no outputs");
 842                         break;
 843                 case FBC_STOLEN_TOO_SMALL:
 844                         seq_printf(m, "not enough stolen memory");
 845                         break;
 846                 case FBC_UNSUPPORTED_MODE:
 847                         seq_printf(m, "mode not supported");
 848                         break;
 849                 case FBC_MODE_TOO_LARGE:
 850                         seq_printf(m, "mode too large");
 851                         break;
 852                 case FBC_BAD_PLANE:
 853                         seq_printf(m, "FBC unsupported on plane");
 854                         break;
 855                 case FBC_NOT_TILED:
 856                         seq_printf(m, "scanout buffer not tiled");
 857                         break;
 858                 case FBC_MULTIPLE_PIPES:
 859                         seq_printf(m, "multiple pipes are enabled");
 860                         break;
 861                 default:
 862                         seq_printf(m, "unknown reason");
 863                 }
 864                 seq_printf(m, "\n");
 865         }
 866         return 0;
 867 }
 868
 869 static int i915_sr_status(struct seq_file *m, void *unused)
 870 {
 871         struct drm_info_node *node = (struct drm_info_node *) m->private;
 872         struct drm_device *dev = node->minor->dev;
 873         drm_i915_private_t *dev_priv = dev->dev_private;
 874         bool sr_enabled = false;
 875
 876         if (IS_GEN5(dev))
 877                 sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
 878         else if (IS_CRESTLINE(dev) || IS_I945G(dev) || IS_I945GM(dev))
 879                 sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
 880         else if (IS_I915GM(dev))
 881                 sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
 882         else if (IS_PINEVIEW(dev))
 883                 sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
 884
 885         seq_printf(m, "self-refresh: %s\n",
 886                    sr_enabled ? "enabled" : "disabled");
 887
 888         return 0;
 889 }
 890
 891 static int i915_emon_status(struct seq_file *m, void *unused)
 892 {
 893         struct drm_info_node *node = (struct drm_info_node *) m->private;
 894         struct drm_device *dev = node->minor->dev;
 895         drm_i915_private_t *dev_priv = dev->dev_private;
 896         unsigned long temp, chipset, gfx;
 897         int ret;
 898
 899         ret = mutex_lock_interruptible(&dev->struct_mutex);
 900         if (ret)
 901                 return ret;
 902
 903         temp = i915_mch_val(dev_priv);
 904         chipset = i915_chipset_val(dev_priv);
 905         gfx = i915_gfx_val(dev_priv);
 906         mutex_unlock(&dev->struct_mutex);
 907
 908         seq_printf(m, "GMCH temp: %ld\n", temp);
 909         seq_printf(m, "Chipset power: %ld\n", chipset);
 910         seq_printf(m, "GFX power: %ld\n", gfx);
 911         seq_printf(m, "Total power: %ld\n", chipset + gfx);
 912
 913         return 0;
 914 }
 915
 916 static int i915_gfxec(struct seq_file *m, void *unused)
 917 {
 918         struct drm_info_node *node = (struct drm_info_node *) m->private;
 919         struct drm_device *dev = node->minor->dev;
 920         drm_i915_private_t *dev_priv = dev->dev_private;
 921
 922         seq_printf(m, "GFXEC: %ld\n", (unsigned long)I915_READ(0x112f4));
 923
 924         return 0;
 925 }
 926
 927 static int i915_opregion(struct seq_file *m, void *unused)
 928 {
 929         struct drm_info_node *node = (struct drm_info_node *) m->private;
 930         struct drm_device *dev = node->minor->dev;
 931         drm_i915_private_t *dev_priv = dev->dev_private;
 932         struct intel_opregion *opregion = &dev_priv->opregion;
 933         int ret;
 934
 935         ret = mutex_lock_interruptible(&dev->struct_mutex);
 936         if (ret)
 937                 return ret;
 938
 939         if (opregion->header)
 940                 seq_write(m, opregion->header, OPREGION_SIZE);
 941
 942         mutex_unlock(&dev->struct_mutex);
 943
 944         return 0;
 945 }
 946
 947 static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
 948 {
 949         struct drm_info_node *node = (struct drm_info_node *) m->private;
 950         struct drm_device *dev = node->minor->dev;
 951         drm_i915_private_t *dev_priv = dev->dev_private;
 952         struct intel_fbdev *ifbdev;
 953         struct intel_framebuffer *fb;
 954         int ret;
 955
 956         ret = mutex_lock_interruptible(&dev->mode_config.mutex);
 957         if (ret)
 958                 return ret;
 959
 960         ifbdev = dev_priv->fbdev;
 961         fb = to_intel_framebuffer(ifbdev->helper.fb);
 962
 963         seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, obj ",
 964                    fb->base.width,
 965                    fb->base.height,
 966                    fb->base.depth,
 967                    fb->base.bits_per_pixel);
 968         describe_obj(m, to_intel_bo(fb->obj));
 969         seq_printf(m, "\n");
 970
 971         list_for_each_entry(fb, &dev->mode_config.fb_list, base.head) {
 972                 if (&fb->base == ifbdev->helper.fb)
 973                         continue;
 974
 975                 seq_printf(m, "user size: %d x %d, depth %d, %d bpp, obj ",
 976                            fb->base.width,
 977                            fb->base.height,
 978                            fb->base.depth,
 979                            fb->base.bits_per_pixel);
 980                 describe_obj(m, to_intel_bo(fb->obj));
 981                 seq_printf(m, "\n");
 982         }
 983
 984         mutex_unlock(&dev->mode_config.mutex);
 985
 986         return 0;
 987 }
 988
 989 static int
 990 i915_wedged_open(struct inode *inode,
 991                  struct file *filp)
 992 {
 993         filp->private_data = inode->i_private;
 994         return 0;
 995 }
 996
 997 static ssize_t
 998 i915_wedged_read(struct file *filp,
 999                  char __user *ubuf,
1000                  size_t max,
1001                  loff_t *ppos)
1002 {
1003         struct drm_device *dev = filp->private_data;
1004         drm_i915_private_t *dev_priv = dev->dev_private;
1005         char buf[80];
1006         int len;
1007
1008         len = snprintf(buf, sizeof (buf),
1009                        "wedged :  %d\n",
1010                        atomic_read(&dev_priv->mm.wedged));
1011
1012         if (len > sizeof (buf))
1013                 len = sizeof (buf);
1014
1015         return simple_read_from_buffer(ubuf, max, ppos, buf, len);
1016 }
1017
1018 static ssize_t
1019 i915_wedged_write(struct file *filp,
1020                   const char __user *ubuf,
1021                   size_t cnt,
1022                   loff_t *ppos)
1023 {
1024         struct drm_device *dev = filp->private_data;
1025         drm_i915_private_t *dev_priv = dev->dev_private;
1026         char buf[20];
1027         int val = 1;
1028
1029         if (cnt > 0) {
1030                 if (cnt > sizeof (buf) - 1)
1031                         return -EINVAL;
1032
1033                 if (copy_from_user(buf, ubuf, cnt))
1034                         return -EFAULT;
1035                 buf[cnt] = 0;
1036
1037                 val = simple_strtoul(buf, NULL, 0);
1038         }
1039
1040         DRM_INFO("Manually setting wedged to %d\n", val);
1041
1042         atomic_set(&dev_priv->mm.wedged, val);
1043         if (val) {
1044                 wake_up_all(&dev_priv->irq_queue);
1045                 queue_work(dev_priv->wq, &dev_priv->error_work);
1046         }
1047
1048         return cnt;
1049 }
1050
1051 static const struct file_operations i915_wedged_fops = {
1052         .owner = THIS_MODULE,
1053         .open = i915_wedged_open,
1054         .read = i915_wedged_read,
1055         .write = i915_wedged_write,
1056         .llseek = default_llseek,
1057 };
1058
1059 /* As the drm_debugfs_init() routines are called before dev->dev_private is
1060  * allocated we need to hook into the minor for release. */
1061 static int
1062 drm_add_fake_info_node(struct drm_minor *minor,
1063                        struct dentry *ent,
1064                        const void *key)
1065 {
1066         struct drm_info_node *node;
1067
1068         node = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
1069         if (node == NULL) {
1070                 debugfs_remove(ent);
1071                 return -ENOMEM;
1072         }
1073
1074         node->minor = minor;
1075         node->dent = ent;
1076         node->info_ent = (void *) key;
1077         list_add(&node->list, &minor->debugfs_nodes.list);
1078
1079         return 0;
1080 }
1081
1082 static int i915_wedged_create(struct dentry *root, struct drm_minor *minor)
1083 {
1084         struct drm_device *dev = minor->dev;
1085         struct dentry *ent;
1086
1087         ent = debugfs_create_file("i915_wedged",
1088                                   S_IRUGO | S_IWUSR,
1089                                   root, dev,
1090                                   &i915_wedged_fops);
1091         if (IS_ERR(ent))
1092                 return PTR_ERR(ent);
1093
1094         return drm_add_fake_info_node(minor, ent, &i915_wedged_fops);
1095 }
1096
1097 static struct drm_info_list i915_debugfs_list[] = {
1098         {"i915_capabilities", i915_capabilities, 0, 0},
1099         {"i915_gem_objects", i915_gem_object_info, 0},
1100         {"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
1101         {"i915_gem_flushing", i915_gem_object_list_info, 0, (void *) FLUSHING_LIST},
1102         {"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST},
1103         {"i915_gem_pinned", i915_gem_object_list_info, 0, (void *) PINNED_LIST},
1104         {"i915_gem_deferred_free", i915_gem_object_list_info, 0, (void *) DEFERRED_FREE_LIST},
1105         {"i915_gem_pageflip", i915_gem_pageflip_info, 0},
1106         {"i915_gem_request", i915_gem_request_info, 0},
1107         {"i915_gem_seqno", i915_gem_seqno_info, 0},
1108         {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
1109         {"i915_gem_interrupt", i915_interrupt_info, 0},
1110         {"i915_gem_hws", i915_hws_info, 0, (void *)RING_RENDER},
1111         {"i915_gem_hws_blt", i915_hws_info, 0, (void *)RING_BLT},
1112         {"i915_gem_hws_bsd", i915_hws_info, 0, (void *)RING_BSD},
1113         {"i915_ringbuffer_data", i915_ringbuffer_data, 0, (void *)RING_RENDER},
1114         {"i915_ringbuffer_info", i915_ringbuffer_info, 0, (void *)RING_RENDER},
1115         {"i915_bsd_ringbuffer_data", i915_ringbuffer_data, 0, (void *)RING_BSD},
1116         {"i915_bsd_ringbuffer_info", i915_ringbuffer_info, 0, (void *)RING_BSD},
1117         {"i915_blt_ringbuffer_data", i915_ringbuffer_data, 0, (void *)RING_BLT},
1118         {"i915_blt_ringbuffer_info", i915_ringbuffer_info, 0, (void *)RING_BLT},
1119         {"i915_batchbuffers", i915_batchbuffer_info, 0},
1120         {"i915_error_state", i915_error_state, 0},
1121         {"i915_rstdby_delays", i915_rstdby_delays, 0},
1122         {"i915_cur_delayinfo", i915_cur_delayinfo, 0},
1123         {"i915_delayfreq_table", i915_delayfreq_table, 0},
1124         {"i915_inttoext_table", i915_inttoext_table, 0},
1125         {"i915_drpc_info", i915_drpc_info, 0},
1126         {"i915_emon_status", i915_emon_status, 0},
1127         {"i915_gfxec", i915_gfxec, 0},
1128         {"i915_fbc_status", i915_fbc_status, 0},
1129         {"i915_sr_status", i915_sr_status, 0},
1130         {"i915_opregion", i915_opregion, 0},
1131         {"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
1132 };
1133 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
1134
1135 int i915_debugfs_init(struct drm_minor *minor)
1136 {
1137         int ret;
1138
1139         ret = i915_wedged_create(minor->debugfs_root, minor);
1140         if (ret)
1141                 return ret;
1142
1143         return drm_debugfs_create_files(i915_debugfs_list,
1144                                         I915_DEBUGFS_ENTRIES,
1145                                         minor->debugfs_root, minor);
1146 }
1147
1148 void i915_debugfs_cleanup(struct drm_minor *minor)
1149 {
1150         drm_debugfs_remove_files(i915_debugfs_list,
1151                                  I915_DEBUGFS_ENTRIES, minor);
1152         drm_debugfs_remove_files((struct drm_info_list *) &i915_wedged_fops,
1153                                  1, minor);
1154 }
1155
1156 #endif /* CONFIG_DEBUG_FS */