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 <linux/export.h>
  33 #include "drmP.h"
  34 #include "drm.h"
  35 #include "intel_drv.h"
  36 #include "intel_ringbuffer.h"
  37 #include "i915_drm.h"
  38 #include "i915_drv.h"
  39
  40 #define DRM_I915_RING_DEBUG 1
  41
  42
  43 #if defined(CONFIG_DEBUG_FS)
  44
  45 enum {
  46         ACTIVE_LIST,
  47         FLUSHING_LIST,
  48         INACTIVE_LIST,
  49         PINNED_LIST,
  50         DEFERRED_FREE_LIST,
  51 };
  52
  53 static const char *yesno(int v)
  54 {
  55         return v ? "yes" : "no";
  56 }
  57
  58 static int i915_capabilities(struct seq_file *m, void *data)
  59 {
  60         struct drm_info_node *node = (struct drm_info_node *) m->private;
  61         struct drm_device *dev = node->minor->dev;
  62         const struct intel_device_info *info = INTEL_INFO(dev);
  63
  64         seq_printf(m, "gen: %d\n", info->gen);
  65         seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev));
  66 #define B(x) seq_printf(m, #x ": %s\n", yesno(info->x))
  67         B(is_mobile);
  68         B(is_i85x);
  69         B(is_i915g);
  70         B(is_i945gm);
  71         B(is_g33);
  72         B(need_gfx_hws);
  73         B(is_g4x);
  74         B(is_pineview);
  75         B(is_broadwater);
  76         B(is_crestline);
  77         B(has_fbc);
  78         B(has_pipe_cxsr);
  79         B(has_hotplug);
  80         B(cursor_needs_physical);
  81         B(has_overlay);
  82         B(overlay_needs_physical);
  83         B(supports_tv);
  84         B(has_bsd_ring);
  85         B(has_blt_ring);
  86         B(has_llc);
  87 #undef B
  88
  89         return 0;
  90 }
  91
  92 static const char *get_pin_flag(struct drm_i915_gem_object *obj)
  93 {
  94         if (obj->user_pin_count > 0)
  95                 return "P";
  96         else if (obj->pin_count > 0)
  97                 return "p";
  98         else
  99                 return " ";
 100 }
 101
 102 static const char *get_tiling_flag(struct drm_i915_gem_object *obj)
 103 {
 104         switch (obj->tiling_mode) {
 105         default:
 106         case I915_TILING_NONE: return " ";
 107         case I915_TILING_X: return "X";
 108         case I915_TILING_Y: return "Y";
 109         }
 110 }
 111
 112 static const char *cache_level_str(int type)
 113 {
 114         switch (type) {
 115         case I915_CACHE_NONE: return " uncached";
 116         case I915_CACHE_LLC: return " snooped (LLC)";
 117         case I915_CACHE_LLC_MLC: return " snooped (LLC+MLC)";
 118         default: return "";
 119         }
 120 }
 121
 122 static void
 123 describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
 124 {
 125         seq_printf(m, "%p: %s%s %8zd %04x %04x %d %d%s%s%s",
 126                    &obj->base,
 127                    get_pin_flag(obj),
 128                    get_tiling_flag(obj),
 129                    obj->base.size,
 130                    obj->base.read_domains,
 131                    obj->base.write_domain,
 132                    obj->last_rendering_seqno,
 133                    obj->last_fenced_seqno,
 134                    cache_level_str(obj->cache_level),
 135                    obj->dirty ? " dirty" : "",
 136                    obj->madv == I915_MADV_DONTNEED ? " purgeable" : "");
 137         if (obj->base.name)
 138                 seq_printf(m, " (name: %d)", obj->base.name);
 139         if (obj->fence_reg != I915_FENCE_REG_NONE)
 140                 seq_printf(m, " (fence: %d)", obj->fence_reg);
 141         if (obj->gtt_space != NULL)
 142                 seq_printf(m, " (gtt offset: %08x, size: %08x)",
 143                            obj->gtt_offset, (unsigned int)obj->gtt_space->size);
 144         if (obj->pin_mappable || obj->fault_mappable) {
 145                 char s[3], *t = s;
 146                 if (obj->pin_mappable)
 147                         *t++ = 'p';
 148                 if (obj->fault_mappable)
 149                         *t++ = 'f';
 150                 *t = '\0';
 151                 seq_printf(m, " (%s mappable)", s);
 152         }
 153         if (obj->ring != NULL)
 154                 seq_printf(m, " (%s)", obj->ring->name);
 155 }
 156
 157 static int i915_gem_object_list_info(struct seq_file *m, void *data)
 158 {
 159         struct drm_info_node *node = (struct drm_info_node *) m->private;
 160         uintptr_t list = (uintptr_t) node->info_ent->data;
 161         struct list_head *head;
 162         struct drm_device *dev = node->minor->dev;
 163         drm_i915_private_t *dev_priv = dev->dev_private;
 164         struct drm_i915_gem_object *obj;
 165         size_t total_obj_size, total_gtt_size;
 166         int count, ret;
 167
 168         ret = mutex_lock_interruptible(&dev->struct_mutex);
 169         if (ret)
 170                 return ret;
 171
 172         switch (list) {
 173         case ACTIVE_LIST:
 174                 seq_printf(m, "Active:\n");
 175                 head = &dev_priv->mm.active_list;
 176                 break;
 177         case INACTIVE_LIST:
 178                 seq_printf(m, "Inactive:\n");
 179                 head = &dev_priv->mm.inactive_list;
 180                 break;
 181         case PINNED_LIST:
 182                 seq_printf(m, "Pinned:\n");
 183                 head = &dev_priv->mm.pinned_list;
 184                 break;
 185         case FLUSHING_LIST:
 186                 seq_printf(m, "Flushing:\n");
 187                 head = &dev_priv->mm.flushing_list;
 188                 break;
 189         case DEFERRED_FREE_LIST:
 190                 seq_printf(m, "Deferred free:\n");
 191                 head = &dev_priv->mm.deferred_free_list;
 192                 break;
 193         default:
 194                 mutex_unlock(&dev->struct_mutex);
 195                 return -EINVAL;
 196         }
 197
 198         total_obj_size = total_gtt_size = count = 0;
 199         list_for_each_entry(obj, head, mm_list) {
 200                 seq_printf(m, "   ");
 201                 describe_obj(m, obj);
 202                 seq_printf(m, "\n");
 203                 total_obj_size += obj->base.size;
 204                 total_gtt_size += obj->gtt_space->size;
 205                 count++;
 206         }
 207         mutex_unlock(&dev->struct_mutex);
 208
 209         seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
 210                    count, total_obj_size, total_gtt_size);
 211         return 0;
 212 }
 213
 214 #define count_objects(list, member) do { \
 215         list_for_each_entry(obj, list, member) { \
 216                 size += obj->gtt_space->size; \
 217                 ++count; \
 218                 if (obj->map_and_fenceable) { \
 219                         mappable_size += obj->gtt_space->size; \
 220                         ++mappable_count; \
 221                 } \
 222         } \
 223 } while (0)
 224
 225 static int i915_gem_object_info(struct seq_file *m, void* data)
 226 {
 227         struct drm_info_node *node = (struct drm_info_node *) m->private;
 228         struct drm_device *dev = node->minor->dev;
 229         struct drm_i915_private *dev_priv = dev->dev_private;
 230         u32 count, mappable_count;
 231         size_t size, mappable_size;
 232         struct drm_i915_gem_object *obj;
 233         int ret;
 234
 235         ret = mutex_lock_interruptible(&dev->struct_mutex);
 236         if (ret)
 237                 return ret;
 238
 239         seq_printf(m, "%u objects, %zu bytes\n",
 240                    dev_priv->mm.object_count,
 241                    dev_priv->mm.object_memory);
 242
 243         size = count = mappable_size = mappable_count = 0;
 244         count_objects(&dev_priv->mm.gtt_list, gtt_list);
 245         seq_printf(m, "%u [%u] objects, %zu [%zu] bytes in gtt\n",
 246                    count, mappable_count, size, mappable_size);
 247
 248         size = count = mappable_size = mappable_count = 0;
 249         count_objects(&dev_priv->mm.active_list, mm_list);
 250         count_objects(&dev_priv->mm.flushing_list, mm_list);
 251         seq_printf(m, "  %u [%u] active objects, %zu [%zu] bytes\n",
 252                    count, mappable_count, size, mappable_size);
 253
 254         size = count = mappable_size = mappable_count = 0;
 255         count_objects(&dev_priv->mm.pinned_list, mm_list);
 256         seq_printf(m, "  %u [%u] pinned objects, %zu [%zu] bytes\n",
 257                    count, mappable_count, size, mappable_size);
 258
 259         size = count = mappable_size = mappable_count = 0;
 260         count_objects(&dev_priv->mm.inactive_list, mm_list);
 261         seq_printf(m, "  %u [%u] inactive objects, %zu [%zu] bytes\n",
 262                    count, mappable_count, size, mappable_size);
 263
 264         size = count = mappable_size = mappable_count = 0;
 265         count_objects(&dev_priv->mm.deferred_free_list, mm_list);
 266         seq_printf(m, "  %u [%u] freed objects, %zu [%zu] bytes\n",
 267                    count, mappable_count, size, mappable_size);
 268
 269         size = count = mappable_size = mappable_count = 0;
 270         list_for_each_entry(obj, &dev_priv->mm.gtt_list, gtt_list) {
 271                 if (obj->fault_mappable) {
 272                         size += obj->gtt_space->size;
 273                         ++count;
 274                 }
 275                 if (obj->pin_mappable) {
 276                         mappable_size += obj->gtt_space->size;
 277                         ++mappable_count;
 278                 }
 279         }
 280         seq_printf(m, "%u pinned mappable objects, %zu bytes\n",
 281                    mappable_count, mappable_size);
 282         seq_printf(m, "%u fault mappable objects, %zu bytes\n",
 283                    count, size);
 284
 285         seq_printf(m, "%zu [%zu] gtt total\n",
 286                    dev_priv->mm.gtt_total, dev_priv->mm.mappable_gtt_total);
 287
 288         mutex_unlock(&dev->struct_mutex);
 289
 290         return 0;
 291 }
 292
 293 static int i915_gem_gtt_info(struct seq_file *m, void* data)
 294 {
 295         struct drm_info_node *node = (struct drm_info_node *) m->private;
 296         struct drm_device *dev = node->minor->dev;
 297         struct drm_i915_private *dev_priv = dev->dev_private;
 298         struct drm_i915_gem_object *obj;
 299         size_t total_obj_size, total_gtt_size;
 300         int count, ret;
 301
 302         ret = mutex_lock_interruptible(&dev->struct_mutex);
 303         if (ret)
 304                 return ret;
 305
 306         total_obj_size = total_gtt_size = count = 0;
 307         list_for_each_entry(obj, &dev_priv->mm.gtt_list, gtt_list) {
 308                 seq_printf(m, "   ");
 309                 describe_obj(m, obj);
 310                 seq_printf(m, "\n");
 311                 total_obj_size += obj->base.size;
 312                 total_gtt_size += obj->gtt_space->size;
 313                 count++;
 314         }
 315
 316         mutex_unlock(&dev->struct_mutex);
 317
 318         seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
 319                    count, total_obj_size, total_gtt_size);
 320
 321         return 0;
 322 }
 323
 324
 325 static int i915_gem_pageflip_info(struct seq_file *m, void *data)
 326 {
 327         struct drm_info_node *node = (struct drm_info_node *) m->private;
 328         struct drm_device *dev = node->minor->dev;
 329         unsigned long flags;
 330         struct intel_crtc *crtc;
 331
 332         list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
 333                 const char pipe = pipe_name(crtc->pipe);
 334                 const char plane = plane_name(crtc->plane);
 335                 struct intel_unpin_work *work;
 336
 337                 spin_lock_irqsave(&dev->event_lock, flags);
 338                 work = crtc->unpin_work;
 339                 if (work == NULL) {
 340                         seq_printf(m, "No flip due on pipe %c (plane %c)\n",
 341                                    pipe, plane);
 342                 } else {
 343                         if (!work->pending) {
 344                                 seq_printf(m, "Flip queued on pipe %c (plane %c)\n",
 345                                            pipe, plane);
 346                         } else {
 347                                 seq_printf(m, "Flip pending (waiting for vsync) on pipe %c (plane %c)\n",
 348                                            pipe, plane);
 349                         }
 350                         if (work->enable_stall_check)
 351                                 seq_printf(m, "Stall check enabled, ");
 352                         else
 353                                 seq_printf(m, "Stall check waiting for page flip ioctl, ");
 354                         seq_printf(m, "%d prepares\n", work->pending);
 355
 356                         if (work->old_fb_obj) {
 357                                 struct drm_i915_gem_object *obj = work->old_fb_obj;
 358                                 if (obj)
 359                                         seq_printf(m, "Old framebuffer gtt_offset 0x%08x\n", obj->gtt_offset);
 360                         }
 361                         if (work->pending_flip_obj) {
 362                                 struct drm_i915_gem_object *obj = work->pending_flip_obj;
 363                                 if (obj)
 364                                         seq_printf(m, "New framebuffer gtt_offset 0x%08x\n", obj->gtt_offset);
 365                         }
 366                 }
 367                 spin_unlock_irqrestore(&dev->event_lock, flags);
 368         }
 369
 370         return 0;
 371 }
 372
 373 static int i915_gem_request_info(struct seq_file *m, void *data)
 374 {
 375         struct drm_info_node *node = (struct drm_info_node *) m->private;
 376         struct drm_device *dev = node->minor->dev;
 377         drm_i915_private_t *dev_priv = dev->dev_private;
 378         struct drm_i915_gem_request *gem_request;
 379         int ret, count;
 380
 381         ret = mutex_lock_interruptible(&dev->struct_mutex);
 382         if (ret)
 383                 return ret;
 384
 385         count = 0;
 386         if (!list_empty(&dev_priv->ring[RCS].request_list)) {
 387                 seq_printf(m, "Render requests:\n");
 388                 list_for_each_entry(gem_request,
 389                                     &dev_priv->ring[RCS].request_list,
 390                                     list) {
 391                         seq_printf(m, "    %d @ %d\n",
 392                                    gem_request->seqno,
 393                                    (int) (jiffies - gem_request->emitted_jiffies));
 394                 }
 395                 count++;
 396         }
 397         if (!list_empty(&dev_priv->ring[VCS].request_list)) {
 398                 seq_printf(m, "BSD requests:\n");
 399                 list_for_each_entry(gem_request,
 400                                     &dev_priv->ring[VCS].request_list,
 401                                     list) {
 402                         seq_printf(m, "    %d @ %d\n",
 403                                    gem_request->seqno,
 404                                    (int) (jiffies - gem_request->emitted_jiffies));
 405                 }
 406                 count++;
 407         }
 408         if (!list_empty(&dev_priv->ring[BCS].request_list)) {
 409                 seq_printf(m, "BLT requests:\n");
 410                 list_for_each_entry(gem_request,
 411                                     &dev_priv->ring[BCS].request_list,
 412                                     list) {
 413                         seq_printf(m, "    %d @ %d\n",
 414                                    gem_request->seqno,
 415                                    (int) (jiffies - gem_request->emitted_jiffies));
 416                 }
 417                 count++;
 418         }
 419         mutex_unlock(&dev->struct_mutex);
 420
 421         if (count == 0)
 422                 seq_printf(m, "No requests\n");
 423
 424         return 0;
 425 }
 426
 427 static void i915_ring_seqno_info(struct seq_file *m,
 428                                  struct intel_ring_buffer *ring)
 429 {
 430         if (ring->get_seqno) {
 431                 seq_printf(m, "Current sequence (%s): %d\n",
 432                            ring->name, ring->get_seqno(ring));
 433                 seq_printf(m, "Waiter sequence (%s):  %d\n",
 434                            ring->name, ring->waiting_seqno);
 435                 seq_printf(m, "IRQ sequence (%s):     %d\n",
 436                            ring->name, ring->irq_seqno);
 437         }
 438 }
 439
 440 static int i915_gem_seqno_info(struct seq_file *m, void *data)
 441 {
 442         struct drm_info_node *node = (struct drm_info_node *) m->private;
 443         struct drm_device *dev = node->minor->dev;
 444         drm_i915_private_t *dev_priv = dev->dev_private;
 445         int ret, i;
 446
 447         ret = mutex_lock_interruptible(&dev->struct_mutex);
 448         if (ret)
 449                 return ret;
 450
 451         for (i = 0; i < I915_NUM_RINGS; i++)
 452                 i915_ring_seqno_info(m, &dev_priv->ring[i]);
 453
 454         mutex_unlock(&dev->struct_mutex);
 455
 456         return 0;
 457 }
 458
 459
 460 static int i915_interrupt_info(struct seq_file *m, void *data)
 461 {
 462         struct drm_info_node *node = (struct drm_info_node *) m->private;
 463         struct drm_device *dev = node->minor->dev;
 464         drm_i915_private_t *dev_priv = dev->dev_private;
 465         int ret, i, pipe;
 466
 467         ret = mutex_lock_interruptible(&dev->struct_mutex);
 468         if (ret)
 469                 return ret;
 470
 471         if (!HAS_PCH_SPLIT(dev)) {
 472                 seq_printf(m, "Interrupt enable:    %08x\n",
 473                            I915_READ(IER));
 474                 seq_printf(m, "Interrupt identity:  %08x\n",
 475                            I915_READ(IIR));
 476                 seq_printf(m, "Interrupt mask:      %08x\n",
 477                            I915_READ(IMR));
 478                 for_each_pipe(pipe)
 479                         seq_printf(m, "Pipe %c stat:         %08x\n",
 480                                    pipe_name(pipe),
 481                                    I915_READ(PIPESTAT(pipe)));
 482         } else {
 483                 seq_printf(m, "North Display Interrupt enable:          %08x\n",
 484                            I915_READ(DEIER));
 485                 seq_printf(m, "North Display Interrupt identity:        %08x\n",
 486                            I915_READ(DEIIR));
 487                 seq_printf(m, "North Display Interrupt mask:            %08x\n",
 488                            I915_READ(DEIMR));
 489                 seq_printf(m, "South Display Interrupt enable:          %08x\n",
 490                            I915_READ(SDEIER));
 491                 seq_printf(m, "South Display Interrupt identity:        %08x\n",
 492                            I915_READ(SDEIIR));
 493                 seq_printf(m, "South Display Interrupt mask:            %08x\n",
 494                            I915_READ(SDEIMR));
 495                 seq_printf(m, "Graphics Interrupt enable:               %08x\n",
 496                            I915_READ(GTIER));
 497                 seq_printf(m, "Graphics Interrupt identity:             %08x\n",
 498                            I915_READ(GTIIR));
 499                 seq_printf(m, "Graphics Interrupt mask:         %08x\n",
 500                            I915_READ(GTIMR));
 501         }
 502         seq_printf(m, "Interrupts received: %d\n",
 503                    atomic_read(&dev_priv->irq_received));
 504         for (i = 0; i < I915_NUM_RINGS; i++) {
 505                 if (IS_GEN6(dev) || IS_GEN7(dev)) {
 506                         seq_printf(m, "Graphics Interrupt mask (%s):    %08x\n",
 507                                    dev_priv->ring[i].name,
 508                                    I915_READ_IMR(&dev_priv->ring[i]));
 509                 }
 510                 i915_ring_seqno_info(m, &dev_priv->ring[i]);
 511         }
 512         mutex_unlock(&dev->struct_mutex);
 513
 514         return 0;
 515 }
 516
 517 static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
 518 {
 519         struct drm_info_node *node = (struct drm_info_node *) m->private;
 520         struct drm_device *dev = node->minor->dev;
 521         drm_i915_private_t *dev_priv = dev->dev_private;
 522         int i, ret;
 523
 524         ret = mutex_lock_interruptible(&dev->struct_mutex);
 525         if (ret)
 526                 return ret;
 527
 528         seq_printf(m, "Reserved fences = %d\n", dev_priv->fence_reg_start);
 529         seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
 530         for (i = 0; i < dev_priv->num_fence_regs; i++) {
 531                 struct drm_i915_gem_object *obj = dev_priv->fence_regs[i].obj;
 532
 533                 seq_printf(m, "Fenced object[%2d] = ", i);
 534                 if (obj == NULL)
 535                         seq_printf(m, "unused");
 536                 else
 537                         describe_obj(m, obj);
 538                 seq_printf(m, "\n");
 539         }
 540
 541         mutex_unlock(&dev->struct_mutex);
 542         return 0;
 543 }
 544
 545 static int i915_hws_info(struct seq_file *m, void *data)
 546 {
 547         struct drm_info_node *node = (struct drm_info_node *) m->private;
 548         struct drm_device *dev = node->minor->dev;
 549         drm_i915_private_t *dev_priv = dev->dev_private;
 550         struct intel_ring_buffer *ring;
 551         const volatile u32 __iomem *hws;
 552         int i;
 553
 554         ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
 555         hws = (volatile u32 __iomem *)ring->status_page.page_addr;
 556         if (hws == NULL)
 557                 return 0;
 558
 559         for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
 560                 seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
 561                            i * 4,
 562                            hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
 563         }
 564         return 0;
 565 }
 566
 567 static void i915_dump_object(struct seq_file *m,
 568                              struct io_mapping *mapping,
 569                              struct drm_i915_gem_object *obj)
 570 {
 571         int page, page_count, i;
 572
 573         page_count = obj->base.size / PAGE_SIZE;
 574         for (page = 0; page < page_count; page++) {
 575                 u32 *mem = io_mapping_map_wc(mapping,
 576                                              obj->gtt_offset + page * PAGE_SIZE);
 577                 for (i = 0; i < PAGE_SIZE; i += 4)
 578                         seq_printf(m, "%08x :  %08x\n", i, mem[i / 4]);
 579                 io_mapping_unmap(mem);
 580         }
 581 }
 582
 583 static int i915_batchbuffer_info(struct seq_file *m, void *data)
 584 {
 585         struct drm_info_node *node = (struct drm_info_node *) m->private;
 586         struct drm_device *dev = node->minor->dev;
 587         drm_i915_private_t *dev_priv = dev->dev_private;
 588         struct drm_i915_gem_object *obj;
 589         int ret;
 590
 591         ret = mutex_lock_interruptible(&dev->struct_mutex);
 592         if (ret)
 593                 return ret;
 594
 595         list_for_each_entry(obj, &dev_priv->mm.active_list, mm_list) {
 596                 if (obj->base.read_domains & I915_GEM_DOMAIN_COMMAND) {
 597                     seq_printf(m, "--- gtt_offset = 0x%08x\n", obj->gtt_offset);
 598                     i915_dump_object(m, dev_priv->mm.gtt_mapping, obj);
 599                 }
 600         }
 601
 602         mutex_unlock(&dev->struct_mutex);
 603         return 0;
 604 }
 605
 606 static int i915_ringbuffer_data(struct seq_file *m, void *data)
 607 {
 608         struct drm_info_node *node = (struct drm_info_node *) m->private;
 609         struct drm_device *dev = node->minor->dev;
 610         drm_i915_private_t *dev_priv = dev->dev_private;
 611         struct intel_ring_buffer *ring;
 612         int ret;
 613
 614         ret = mutex_lock_interruptible(&dev->struct_mutex);
 615         if (ret)
 616                 return ret;
 617
 618         ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
 619         if (!ring->obj) {
 620                 seq_printf(m, "No ringbuffer setup\n");
 621         } else {
 622                 const u8 __iomem *virt = ring->virtual_start;
 623                 uint32_t off;
 624
 625                 for (off = 0; off < ring->size; off += 4) {
 626                         uint32_t *ptr = (uint32_t *)(virt + off);
 627                         seq_printf(m, "%08x :  %08x\n", off, *ptr);
 628                 }
 629         }
 630         mutex_unlock(&dev->struct_mutex);
 631
 632         return 0;
 633 }
 634
 635 static int i915_ringbuffer_info(struct seq_file *m, void *data)
 636 {
 637         struct drm_info_node *node = (struct drm_info_node *) m->private;
 638         struct drm_device *dev = node->minor->dev;
 639         drm_i915_private_t *dev_priv = dev->dev_private;
 640         struct intel_ring_buffer *ring;
 641         int ret;
 642
 643         ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
 644         if (ring->size == 0)
 645                 return 0;
 646
 647         ret = mutex_lock_interruptible(&dev->struct_mutex);
 648         if (ret)
 649                 return ret;
 650
 651         seq_printf(m, "Ring %s:\n", ring->name);
 652         seq_printf(m, "  Head :    %08x\n", I915_READ_HEAD(ring) & HEAD_ADDR);
 653         seq_printf(m, "  Tail :    %08x\n", I915_READ_TAIL(ring) & TAIL_ADDR);
 654         seq_printf(m, "  Size :    %08x\n", ring->size);
 655         seq_printf(m, "  Active :  %08x\n", intel_ring_get_active_head(ring));
 656         seq_printf(m, "  NOPID :   %08x\n", I915_READ_NOPID(ring));
 657         if (IS_GEN6(dev)) {
 658                 seq_printf(m, "  Sync 0 :   %08x\n", I915_READ_SYNC_0(ring));
 659                 seq_printf(m, "  Sync 1 :   %08x\n", I915_READ_SYNC_1(ring));
 660         }
 661         seq_printf(m, "  Control : %08x\n", I915_READ_CTL(ring));
 662         seq_printf(m, "  Start :   %08x\n", I915_READ_START(ring));
 663
 664         mutex_unlock(&dev->struct_mutex);
 665
 666         return 0;
 667 }
 668
 669 static const char *ring_str(int ring)
 670 {
 671         switch (ring) {
 672         case RCS: return "render";
 673         case VCS: return "bsd";
 674         case BCS: return "blt";
 675         default: return "";
 676         }
 677 }
 678
 679 static const char *pin_flag(int pinned)
 680 {
 681         if (pinned > 0)
 682                 return " P";
 683         else if (pinned < 0)
 684                 return " p";
 685         else
 686                 return "";
 687 }
 688
 689 static const char *tiling_flag(int tiling)
 690 {
 691         switch (tiling) {
 692         default:
 693         case I915_TILING_NONE: return "";
 694         case I915_TILING_X: return " X";
 695         case I915_TILING_Y: return " Y";
 696         }
 697 }
 698
 699 static const char *dirty_flag(int dirty)
 700 {
 701         return dirty ? " dirty" : "";
 702 }
 703
 704 static const char *purgeable_flag(int purgeable)
 705 {
 706         return purgeable ? " purgeable" : "";
 707 }
 708
 709 static void print_error_buffers(struct seq_file *m,
 710                                 const char *name,
 711                                 struct drm_i915_error_buffer *err,
 712                                 int count)
 713 {
 714         seq_printf(m, "%s [%d]:\n", name, count);
 715
 716         while (count--) {
 717                 seq_printf(m, "  %08x %8u %04x %04x %08x%s%s%s%s%s%s%s",
 718                            err->gtt_offset,
 719                            err->size,
 720                            err->read_domains,
 721                            err->write_domain,
 722                            err->seqno,
 723                            pin_flag(err->pinned),
 724                            tiling_flag(err->tiling),
 725                            dirty_flag(err->dirty),
 726                            purgeable_flag(err->purgeable),
 727                            err->ring != -1 ? " " : "",
 728                            ring_str(err->ring),
 729                            cache_level_str(err->cache_level));
 730
 731                 if (err->name)
 732                         seq_printf(m, " (name: %d)", err->name);
 733                 if (err->fence_reg != I915_FENCE_REG_NONE)
 734                         seq_printf(m, " (fence: %d)", err->fence_reg);
 735
 736                 seq_printf(m, "\n");
 737                 err++;
 738         }
 739 }
 740
 741 static void i915_ring_error_state(struct seq_file *m,
 742                                   struct drm_device *dev,
 743                                   struct drm_i915_error_state *error,
 744                                   unsigned ring)
 745 {
 746         seq_printf(m, "%s command stream:\n", ring_str(ring));
 747         seq_printf(m, "  HEAD: 0x%08x\n", error->head[ring]);
 748         seq_printf(m, "  TAIL: 0x%08x\n", error->tail[ring]);
 749         seq_printf(m, "  ACTHD: 0x%08x\n", error->acthd[ring]);
 750         seq_printf(m, "  IPEIR: 0x%08x\n", error->ipeir[ring]);
 751         seq_printf(m, "  IPEHR: 0x%08x\n", error->ipehr[ring]);
 752         seq_printf(m, "  INSTDONE: 0x%08x\n", error->instdone[ring]);
 753         if (ring == RCS && INTEL_INFO(dev)->gen >= 4) {
 754                 seq_printf(m, "  INSTDONE1: 0x%08x\n", error->instdone1);
 755                 seq_printf(m, "  BBADDR: 0x%08llx\n", error->bbaddr);
 756         }
 757         if (INTEL_INFO(dev)->gen >= 4)
 758                 seq_printf(m, "  INSTPS: 0x%08x\n", error->instps[ring]);
 759         seq_printf(m, "  INSTPM: 0x%08x\n", error->instpm[ring]);
 760         if (INTEL_INFO(dev)->gen >= 6)
 761                 seq_printf(m, "  FADDR: 0x%08x\n", error->faddr[ring]);
 762         seq_printf(m, "  seqno: 0x%08x\n", error->seqno[ring]);
 763 }
 764
 765 static int i915_error_state(struct seq_file *m, void *unused)
 766 {
 767         struct drm_info_node *node = (struct drm_info_node *) m->private;
 768         struct drm_device *dev = node->minor->dev;
 769         drm_i915_private_t *dev_priv = dev->dev_private;
 770         struct drm_i915_error_state *error;
 771         unsigned long flags;
 772         int i, page, offset, elt;
 773
 774         spin_lock_irqsave(&dev_priv->error_lock, flags);
 775         if (!dev_priv->first_error) {
 776                 seq_printf(m, "no error state collected\n");
 777                 goto out;
 778         }
 779
 780         error = dev_priv->first_error;
 781
 782         seq_printf(m, "Time: %ld s %ld us\n", error->time.tv_sec,
 783                    error->time.tv_usec);
 784         seq_printf(m, "PCI ID: 0x%04x\n", dev->pci_device);
 785         seq_printf(m, "EIR: 0x%08x\n", error->eir);
 786         seq_printf(m, "PGTBL_ER: 0x%08x\n", error->pgtbl_er);
 787
 788         for (i = 0; i < dev_priv->num_fence_regs; i++)
 789                 seq_printf(m, "  fence[%d] = %08llx\n", i, error->fence[i]);
 790
 791         if (INTEL_INFO(dev)->gen >= 6)
 792                 seq_printf(m, "ERROR: 0x%08x\n", error->error);
 793
 794         i915_ring_error_state(m, dev, error, RCS);
 795         if (HAS_BLT(dev))
 796                 i915_ring_error_state(m, dev, error, BCS);
 797         if (HAS_BSD(dev))
 798                 i915_ring_error_state(m, dev, error, VCS);
 799
 800         if (error->active_bo)
 801                 print_error_buffers(m, "Active",
 802                                     error->active_bo,
 803                                     error->active_bo_count);
 804
 805         if (error->pinned_bo)
 806                 print_error_buffers(m, "Pinned",
 807                                     error->pinned_bo,
 808                                     error->pinned_bo_count);
 809
 810         for (i = 0; i < ARRAY_SIZE(error->batchbuffer); i++) {
 811                 if (error->batchbuffer[i]) {
 812                         struct drm_i915_error_object *obj = error->batchbuffer[i];
 813
 814                         seq_printf(m, "%s --- gtt_offset = 0x%08x\n",
 815                                    dev_priv->ring[i].name,
 816                                    obj->gtt_offset);
 817                         offset = 0;
 818                         for (page = 0; page < obj->page_count; page++) {
 819                                 for (elt = 0; elt < PAGE_SIZE/4; elt++) {
 820                                         seq_printf(m, "%08x :  %08x\n", offset, obj->pages[page][elt]);
 821                                         offset += 4;
 822                                 }
 823                         }
 824                 }
 825         }
 826
 827         for (i = 0; i < ARRAY_SIZE(error->ringbuffer); i++) {
 828                 if (error->ringbuffer[i]) {
 829                         struct drm_i915_error_object *obj = error->ringbuffer[i];
 830                         seq_printf(m, "%s --- ringbuffer = 0x%08x\n",
 831                                    dev_priv->ring[i].name,
 832                                    obj->gtt_offset);
 833                         offset = 0;
 834                         for (page = 0; page < obj->page_count; page++) {
 835                                 for (elt = 0; elt < PAGE_SIZE/4; elt++) {
 836                                         seq_printf(m, "%08x :  %08x\n",
 837                                                    offset,
 838                                                    obj->pages[page][elt]);
 839                                         offset += 4;
 840                                 }
 841                         }
 842                 }
 843         }
 844
 845         if (error->overlay)
 846                 intel_overlay_print_error_state(m, error->overlay);
 847
 848         if (error->display)
 849                 intel_display_print_error_state(m, dev, error->display);
 850
 851 out:
 852         spin_unlock_irqrestore(&dev_priv->error_lock, flags);
 853
 854         return 0;
 855 }
 856
 857 static int i915_rstdby_delays(struct seq_file *m, void *unused)
 858 {
 859         struct drm_info_node *node = (struct drm_info_node *) m->private;
 860         struct drm_device *dev = node->minor->dev;
 861         drm_i915_private_t *dev_priv = dev->dev_private;
 862         u16 crstanddelay;
 863         int ret;
 864
 865         ret = mutex_lock_interruptible(&dev->struct_mutex);
 866         if (ret)
 867                 return ret;
 868
 869         crstanddelay = I915_READ16(CRSTANDVID);
 870
 871         mutex_unlock(&dev->struct_mutex);
 872
 873         seq_printf(m, "w/ctx: %d, w/o ctx: %d\n", (crstanddelay >> 8) & 0x3f, (crstanddelay & 0x3f));
 874
 875         return 0;
 876 }
 877
 878 static int i915_cur_delayinfo(struct seq_file *m, void *unused)
 879 {
 880         struct drm_info_node *node = (struct drm_info_node *) m->private;
 881         struct drm_device *dev = node->minor->dev;
 882         drm_i915_private_t *dev_priv = dev->dev_private;
 883         int ret;
 884
 885         if (IS_GEN5(dev)) {
 886                 u16 rgvswctl = I915_READ16(MEMSWCTL);
 887                 u16 rgvstat = I915_READ16(MEMSTAT_ILK);
 888
 889                 seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
 890                 seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
 891                 seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
 892                            MEMSTAT_VID_SHIFT);
 893                 seq_printf(m, "Current P-state: %d\n",
 894                            (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
 895         } else if (IS_GEN6(dev) || IS_GEN7(dev)) {
 896                 u32 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
 897                 u32 rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
 898                 u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
 899                 u32 rpstat;
 900                 u32 rpupei, rpcurup, rpprevup;
 901                 u32 rpdownei, rpcurdown, rpprevdown;
 902                 int max_freq;
 903
 904                 /* RPSTAT1 is in the GT power well */
 905                 ret = mutex_lock_interruptible(&dev->struct_mutex);
 906                 if (ret)
 907                         return ret;
 908
 909                 gen6_gt_force_wake_get(dev_priv);
 910
 911                 rpstat = I915_READ(GEN6_RPSTAT1);
 912                 rpupei = I915_READ(GEN6_RP_CUR_UP_EI);
 913                 rpcurup = I915_READ(GEN6_RP_CUR_UP);
 914                 rpprevup = I915_READ(GEN6_RP_PREV_UP);
 915                 rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI);
 916                 rpcurdown = I915_READ(GEN6_RP_CUR_DOWN);
 917                 rpprevdown = I915_READ(GEN6_RP_PREV_DOWN);
 918
 919                 gen6_gt_force_wake_put(dev_priv);
 920                 mutex_unlock(&dev->struct_mutex);
 921
 922                 seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
 923                 seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
 924                 seq_printf(m, "Render p-state ratio: %d\n",
 925                            (gt_perf_status & 0xff00) >> 8);
 926                 seq_printf(m, "Render p-state VID: %d\n",
 927                            gt_perf_status & 0xff);
 928                 seq_printf(m, "Render p-state limit: %d\n",
 929                            rp_state_limits & 0xff);
 930                 seq_printf(m, "CAGF: %dMHz\n", ((rpstat & GEN6_CAGF_MASK) >>
 931                                                 GEN6_CAGF_SHIFT) * 50);
 932                 seq_printf(m, "RP CUR UP EI: %dus\n", rpupei &
 933                            GEN6_CURICONT_MASK);
 934                 seq_printf(m, "RP CUR UP: %dus\n", rpcurup &
 935                            GEN6_CURBSYTAVG_MASK);
 936                 seq_printf(m, "RP PREV UP: %dus\n", rpprevup &
 937                            GEN6_CURBSYTAVG_MASK);
 938                 seq_printf(m, "RP CUR DOWN EI: %dus\n", rpdownei &
 939                            GEN6_CURIAVG_MASK);
 940                 seq_printf(m, "RP CUR DOWN: %dus\n", rpcurdown &
 941                            GEN6_CURBSYTAVG_MASK);
 942                 seq_printf(m, "RP PREV DOWN: %dus\n", rpprevdown &
 943                            GEN6_CURBSYTAVG_MASK);
 944
 945                 max_freq = (rp_state_cap & 0xff0000) >> 16;
 946                 seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
 947                            max_freq * 50);
 948
 949                 max_freq = (rp_state_cap & 0xff00) >> 8;
 950                 seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
 951                            max_freq * 50);
 952
 953                 max_freq = rp_state_cap & 0xff;
 954                 seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
 955                            max_freq * 50);
 956         } else {
 957                 seq_printf(m, "no P-state info available\n");
 958         }
 959
 960         return 0;
 961 }
 962
 963 static int i915_delayfreq_table(struct seq_file *m, void *unused)
 964 {
 965         struct drm_info_node *node = (struct drm_info_node *) m->private;
 966         struct drm_device *dev = node->minor->dev;
 967         drm_i915_private_t *dev_priv = dev->dev_private;
 968         u32 delayfreq;
 969         int ret, i;
 970
 971         ret = mutex_lock_interruptible(&dev->struct_mutex);
 972         if (ret)
 973                 return ret;
 974
 975         for (i = 0; i < 16; i++) {
 976                 delayfreq = I915_READ(PXVFREQ_BASE + i * 4);
 977                 seq_printf(m, "P%02dVIDFREQ: 0x%08x (VID: %d)\n", i, delayfreq,
 978                            (delayfreq & PXVFREQ_PX_MASK) >> PXVFREQ_PX_SHIFT);
 979         }
 980
 981         mutex_unlock(&dev->struct_mutex);
 982
 983         return 0;
 984 }
 985
 986 static inline int MAP_TO_MV(int map)
 987 {
 988         return 1250 - (map * 25);
 989 }
 990
 991 static int i915_inttoext_table(struct seq_file *m, void *unused)
 992 {
 993         struct drm_info_node *node = (struct drm_info_node *) m->private;
 994         struct drm_device *dev = node->minor->dev;
 995         drm_i915_private_t *dev_priv = dev->dev_private;
 996         u32 inttoext;
 997         int ret, i;
 998
 999         ret = mutex_lock_interruptible(&dev->struct_mutex);
1000         if (ret)
1001                 return ret;
1002
1003         for (i = 1; i <= 32; i++) {
1004                 inttoext = I915_READ(INTTOEXT_BASE_ILK + i * 4);
1005                 seq_printf(m, "INTTOEXT%02d: 0x%08x\n", i, inttoext);
1006         }
1007
1008         mutex_unlock(&dev->struct_mutex);
1009
1010         return 0;
1011 }
1012
1013 static int ironlake_drpc_info(struct seq_file *m)
1014 {
1015         struct drm_info_node *node = (struct drm_info_node *) m->private;
1016         struct drm_device *dev = node->minor->dev;
1017         drm_i915_private_t *dev_priv = dev->dev_private;
1018         u32 rgvmodectl, rstdbyctl;
1019         u16 crstandvid;
1020         int ret;
1021
1022         ret = mutex_lock_interruptible(&dev->struct_mutex);
1023         if (ret)
1024                 return ret;
1025
1026         rgvmodectl = I915_READ(MEMMODECTL);
1027         rstdbyctl = I915_READ(RSTDBYCTL);
1028         crstandvid = I915_READ16(CRSTANDVID);
1029
1030         mutex_unlock(&dev->struct_mutex);
1031
1032         seq_printf(m, "HD boost: %s\n", (rgvmodectl & MEMMODE_BOOST_EN) ?
1033                    "yes" : "no");
1034         seq_printf(m, "Boost freq: %d\n",
1035                    (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
1036                    MEMMODE_BOOST_FREQ_SHIFT);
1037         seq_printf(m, "HW control enabled: %s\n",
1038                    rgvmodectl & MEMMODE_HWIDLE_EN ? "yes" : "no");
1039         seq_printf(m, "SW control enabled: %s\n",
1040                    rgvmodectl & MEMMODE_SWMODE_EN ? "yes" : "no");
1041         seq_printf(m, "Gated voltage change: %s\n",
1042                    rgvmodectl & MEMMODE_RCLK_GATE ? "yes" : "no");
1043         seq_printf(m, "Starting frequency: P%d\n",
1044                    (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
1045         seq_printf(m, "Max P-state: P%d\n",
1046                    (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
1047         seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
1048         seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
1049         seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
1050         seq_printf(m, "Render standby enabled: %s\n",
1051                    (rstdbyctl & RCX_SW_EXIT) ? "no" : "yes");
1052         seq_printf(m, "Current RS state: ");
1053         switch (rstdbyctl & RSX_STATUS_MASK) {
1054         case RSX_STATUS_ON:
1055                 seq_printf(m, "on\n");
1056                 break;
1057         case RSX_STATUS_RC1:
1058                 seq_printf(m, "RC1\n");
1059                 break;
1060         case RSX_STATUS_RC1E:
1061                 seq_printf(m, "RC1E\n");
1062                 break;
1063         case RSX_STATUS_RS1:
1064                 seq_printf(m, "RS1\n");
1065                 break;
1066         case RSX_STATUS_RS2:
1067                 seq_printf(m, "RS2 (RC6)\n");
1068                 break;
1069         case RSX_STATUS_RS3:
1070                 seq_printf(m, "RC3 (RC6+)\n");
1071                 break;
1072         default:
1073                 seq_printf(m, "unknown\n");
1074                 break;
1075         }
1076
1077         return 0;
1078 }
1079
1080 static int gen6_drpc_info(struct seq_file *m)
1081 {
1082
1083         struct drm_info_node *node = (struct drm_info_node *) m->private;
1084         struct drm_device *dev = node->minor->dev;
1085         struct drm_i915_private *dev_priv = dev->dev_private;
1086         u32 rpmodectl1, gt_core_status, rcctl1;
1087         int count=0, ret;
1088
1089
1090         ret = mutex_lock_interruptible(&dev->struct_mutex);
1091         if (ret)
1092                 return ret;
1093
1094         if (atomic_read(&dev_priv->forcewake_count)) {
1095                 seq_printf(m, "RC information inaccurate because userspace "
1096                               "holds a reference \n");
1097         } else {
1098                 /* NB: we cannot use forcewake, else we read the wrong values */
1099                 while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
1100                         udelay(10);
1101                 seq_printf(m, "RC information accurate: %s\n", yesno(count < 51));
1102         }
1103
1104         gt_core_status = readl(dev_priv->regs + GEN6_GT_CORE_STATUS);
1105         trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4);
1106
1107         rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
1108         rcctl1 = I915_READ(GEN6_RC_CONTROL);
1109         mutex_unlock(&dev->struct_mutex);
1110
1111         seq_printf(m, "Video Turbo Mode: %s\n",
1112                    yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
1113         seq_printf(m, "HW control enabled: %s\n",
1114                    yesno(rpmodectl1 & GEN6_RP_ENABLE));
1115         seq_printf(m, "SW control enabled: %s\n",
1116                    yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
1117                           GEN6_RP_MEDIA_SW_MODE));
1118         seq_printf(m, "RC6 Enabled: %s\n",
1119                    yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
1120         seq_printf(m, "RC6 Enabled: %s\n",
1121                    yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
1122         seq_printf(m, "Deep RC6 Enabled: %s\n",
1123                    yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
1124         seq_printf(m, "Deepest RC6 Enabled: %s\n",
1125                    yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
1126         seq_printf(m, "Current RC state: ");
1127         switch (gt_core_status & GEN6_RCn_MASK) {
1128         case GEN6_RC0:
1129                 if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
1130                         seq_printf(m, "Core Power Down\n");
1131                 else
1132                         seq_printf(m, "on\n");
1133                 break;
1134         case GEN6_RC3:
1135                 seq_printf(m, "RC3\n");
1136                 break;
1137         case GEN6_RC6:
1138                 seq_printf(m, "RC6\n");
1139                 break;
1140         case GEN6_RC7:
1141                 seq_printf(m, "RC7\n");
1142                 break;
1143         default:
1144                 seq_printf(m, "Unknown\n");
1145                 break;
1146         }
1147
1148         seq_printf(m, "Core Power Down: %s\n",
1149                    yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
1150         return 0;
1151 }
1152
1153 static int i915_drpc_info(struct seq_file *m, void *unused)
1154 {
1155         struct drm_info_node *node = (struct drm_info_node *) m->private;
1156         struct drm_device *dev = node->minor->dev;
1157
1158         if (IS_GEN6(dev) || IS_GEN7(dev))
1159                 return gen6_drpc_info(m);
1160         else
1161                 return ironlake_drpc_info(m);
1162 }
1163
1164 static int i915_fbc_status(struct seq_file *m, void *unused)
1165 {
1166         struct drm_info_node *node = (struct drm_info_node *) m->private;
1167         struct drm_device *dev = node->minor->dev;
1168         drm_i915_private_t *dev_priv = dev->dev_private;
1169
1170         if (!I915_HAS_FBC(dev)) {
1171                 seq_printf(m, "FBC unsupported on this chipset\n");
1172                 return 0;
1173         }
1174
1175         if (intel_fbc_enabled(dev)) {
1176                 seq_printf(m, "FBC enabled\n");
1177         } else {
1178                 seq_printf(m, "FBC disabled: ");
1179                 switch (dev_priv->no_fbc_reason) {
1180                 case FBC_NO_OUTPUT:
1181                         seq_printf(m, "no outputs");
1182                         break;
1183                 case FBC_STOLEN_TOO_SMALL:
1184                         seq_printf(m, "not enough stolen memory");
1185                         break;
1186                 case FBC_UNSUPPORTED_MODE:
1187                         seq_printf(m, "mode not supported");
1188                         break;
1189                 case FBC_MODE_TOO_LARGE:
1190                         seq_printf(m, "mode too large");
1191                         break;
1192                 case FBC_BAD_PLANE:
1193                         seq_printf(m, "FBC unsupported on plane");
1194                         break;
1195                 case FBC_NOT_TILED:
1196                         seq_printf(m, "scanout buffer not tiled");
1197                         break;
1198                 case FBC_MULTIPLE_PIPES:
1199                         seq_printf(m, "multiple pipes are enabled");
1200                         break;
1201                 case FBC_MODULE_PARAM:
1202                         seq_printf(m, "disabled per module param (default off)");
1203                         break;
1204                 default:
1205                         seq_printf(m, "unknown reason");
1206                 }
1207                 seq_printf(m, "\n");
1208         }
1209         return 0;
1210 }
1211
1212 static int i915_sr_status(struct seq_file *m, void *unused)
1213 {
1214         struct drm_info_node *node = (struct drm_info_node *) m->private;
1215         struct drm_device *dev = node->minor->dev;
1216         drm_i915_private_t *dev_priv = dev->dev_private;
1217         bool sr_enabled = false;
1218
1219         if (HAS_PCH_SPLIT(dev))
1220                 sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
1221         else if (IS_CRESTLINE(dev) || IS_I945G(dev) || IS_I945GM(dev))
1222                 sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
1223         else if (IS_I915GM(dev))
1224                 sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
1225         else if (IS_PINEVIEW(dev))
1226                 sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
1227
1228         seq_printf(m, "self-refresh: %s\n",
1229                    sr_enabled ? "enabled" : "disabled");
1230
1231         return 0;
1232 }
1233
1234 static int i915_emon_status(struct seq_file *m, void *unused)
1235 {
1236         struct drm_info_node *node = (struct drm_info_node *) m->private;
1237         struct drm_device *dev = node->minor->dev;
1238         drm_i915_private_t *dev_priv = dev->dev_private;
1239         unsigned long temp, chipset, gfx;
1240         int ret;
1241
1242         ret = mutex_lock_interruptible(&dev->struct_mutex);
1243         if (ret)
1244                 return ret;
1245
1246         temp = i915_mch_val(dev_priv);
1247         chipset = i915_chipset_val(dev_priv);
1248         gfx = i915_gfx_val(dev_priv);
1249         mutex_unlock(&dev->struct_mutex);
1250
1251         seq_printf(m, "GMCH temp: %ld\n", temp);
1252         seq_printf(m, "Chipset power: %ld\n", chipset);
1253         seq_printf(m, "GFX power: %ld\n", gfx);
1254         seq_printf(m, "Total power: %ld\n", chipset + gfx);
1255
1256         return 0;
1257 }
1258
1259 static int i915_ring_freq_table(struct seq_file *m, void *unused)
1260 {
1261         struct drm_info_node *node = (struct drm_info_node *) m->private;
1262         struct drm_device *dev = node->minor->dev;
1263         drm_i915_private_t *dev_priv = dev->dev_private;
1264         int ret;
1265         int gpu_freq, ia_freq;
1266
1267         if (!(IS_GEN6(dev) || IS_GEN7(dev))) {
1268                 seq_printf(m, "unsupported on this chipset\n");
1269                 return 0;
1270         }
1271
1272         ret = mutex_lock_interruptible(&dev->struct_mutex);
1273         if (ret)
1274                 return ret;
1275
1276         seq_printf(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\n");
1277
1278         for (gpu_freq = dev_priv->min_delay; gpu_freq <= dev_priv->max_delay;
1279              gpu_freq++) {
1280                 I915_WRITE(GEN6_PCODE_DATA, gpu_freq);
1281                 I915_WRITE(GEN6_PCODE_MAILBOX, GEN6_PCODE_READY |
1282                            GEN6_PCODE_READ_MIN_FREQ_TABLE);
1283                 if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) &
1284                               GEN6_PCODE_READY) == 0, 10)) {
1285                         DRM_ERROR("pcode read of freq table timed out\n");
1286                         continue;
1287                 }
1288                 ia_freq = I915_READ(GEN6_PCODE_DATA);
1289                 seq_printf(m, "%d\t\t%d\n", gpu_freq * 50, ia_freq * 100);
1290         }
1291
1292         mutex_unlock(&dev->struct_mutex);
1293
1294         return 0;
1295 }
1296
1297 static int i915_gfxec(struct seq_file *m, void *unused)
1298 {
1299         struct drm_info_node *node = (struct drm_info_node *) m->private;
1300         struct drm_device *dev = node->minor->dev;
1301         drm_i915_private_t *dev_priv = dev->dev_private;
1302         int ret;
1303
1304         ret = mutex_lock_interruptible(&dev->struct_mutex);
1305         if (ret)
1306                 return ret;
1307
1308         seq_printf(m, "GFXEC: %ld\n", (unsigned long)I915_READ(0x112f4));
1309
1310         mutex_unlock(&dev->struct_mutex);
1311
1312         return 0;
1313 }
1314
1315 static int i915_opregion(struct seq_file *m, void *unused)
1316 {
1317         struct drm_info_node *node = (struct drm_info_node *) m->private;
1318         struct drm_device *dev = node->minor->dev;
1319         drm_i915_private_t *dev_priv = dev->dev_private;
1320         struct intel_opregion *opregion = &dev_priv->opregion;
1321         int ret;
1322
1323         ret = mutex_lock_interruptible(&dev->struct_mutex);
1324         if (ret)
1325                 return ret;
1326
1327         if (opregion->header)
1328                 seq_write(m, opregion->header, OPREGION_SIZE);
1329
1330         mutex_unlock(&dev->struct_mutex);
1331
1332         return 0;
1333 }
1334
1335 static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
1336 {
1337         struct drm_info_node *node = (struct drm_info_node *) m->private;
1338         struct drm_device *dev = node->minor->dev;
1339         drm_i915_private_t *dev_priv = dev->dev_private;
1340         struct intel_fbdev *ifbdev;
1341         struct intel_framebuffer *fb;
1342         int ret;
1343
1344         ret = mutex_lock_interruptible(&dev->mode_config.mutex);
1345         if (ret)
1346                 return ret;
1347
1348         ifbdev = dev_priv->fbdev;
1349         fb = to_intel_framebuffer(ifbdev->helper.fb);
1350
1351         seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, obj ",
1352                    fb->base.width,
1353                    fb->base.height,
1354                    fb->base.depth,
1355                    fb->base.bits_per_pixel);
1356         describe_obj(m, fb->obj);
1357         seq_printf(m, "\n");
1358
1359         list_for_each_entry(fb, &dev->mode_config.fb_list, base.head) {
1360                 if (&fb->base == ifbdev->helper.fb)
1361                         continue;
1362
1363                 seq_printf(m, "user size: %d x %d, depth %d, %d bpp, obj ",
1364                            fb->base.width,
1365                            fb->base.height,
1366                            fb->base.depth,
1367                            fb->base.bits_per_pixel);
1368                 describe_obj(m, fb->obj);
1369                 seq_printf(m, "\n");
1370         }
1371
1372         mutex_unlock(&dev->mode_config.mutex);
1373
1374         return 0;
1375 }
1376
1377 static int i915_context_status(struct seq_file *m, void *unused)
1378 {
1379         struct drm_info_node *node = (struct drm_info_node *) m->private;
1380         struct drm_device *dev = node->minor->dev;
1381         drm_i915_private_t *dev_priv = dev->dev_private;
1382         int ret;
1383
1384         ret = mutex_lock_interruptible(&dev->mode_config.mutex);
1385         if (ret)
1386                 return ret;
1387
1388         if (dev_priv->pwrctx) {
1389                 seq_printf(m, "power context ");
1390                 describe_obj(m, dev_priv->pwrctx);
1391                 seq_printf(m, "\n");
1392         }
1393
1394         if (dev_priv->renderctx) {
1395                 seq_printf(m, "render context ");
1396                 describe_obj(m, dev_priv->renderctx);
1397                 seq_printf(m, "\n");
1398         }
1399
1400         mutex_unlock(&dev->mode_config.mutex);
1401
1402         return 0;
1403 }
1404
1405 static int i915_gen6_forcewake_count_info(struct seq_file *m, void *data)
1406 {
1407         struct drm_info_node *node = (struct drm_info_node *) m->private;
1408         struct drm_device *dev = node->minor->dev;
1409         struct drm_i915_private *dev_priv = dev->dev_private;
1410
1411         seq_printf(m, "forcewake count = %d\n",
1412                    atomic_read(&dev_priv->forcewake_count));
1413
1414         return 0;
1415 }
1416
1417 static int
1418 i915_wedged_open(struct inode *inode,
1419                  struct file *filp)
1420 {
1421         filp->private_data = inode->i_private;
1422         return 0;
1423 }
1424
1425 static ssize_t
1426 i915_wedged_read(struct file *filp,
1427                  char __user *ubuf,
1428                  size_t max,
1429                  loff_t *ppos)
1430 {
1431         struct drm_device *dev = filp->private_data;
1432         drm_i915_private_t *dev_priv = dev->dev_private;
1433         char buf[80];
1434         int len;
1435
1436         len = snprintf(buf, sizeof(buf),
1437                        "wedged :  %d\n",
1438                        atomic_read(&dev_priv->mm.wedged));
1439
1440         if (len > sizeof(buf))
1441                 len = sizeof(buf);
1442
1443         return simple_read_from_buffer(ubuf, max, ppos, buf, len);
1444 }
1445
1446 static ssize_t
1447 i915_wedged_write(struct file *filp,
1448                   const char __user *ubuf,
1449                   size_t cnt,
1450                   loff_t *ppos)
1451 {
1452         struct drm_device *dev = filp->private_data;
1453         char buf[20];
1454         int val = 1;
1455
1456         if (cnt > 0) {
1457                 if (cnt > sizeof(buf) - 1)
1458                         return -EINVAL;
1459
1460                 if (copy_from_user(buf, ubuf, cnt))
1461                         return -EFAULT;
1462                 buf[cnt] = 0;
1463
1464                 val = simple_strtoul(buf, NULL, 0);
1465         }
1466
1467         DRM_INFO("Manually setting wedged to %d\n", val);
1468         i915_handle_error(dev, val);
1469
1470         return cnt;
1471 }
1472
1473 static const struct file_operations i915_wedged_fops = {
1474         .owner = THIS_MODULE,
1475         .open = i915_wedged_open,
1476         .read = i915_wedged_read,
1477         .write = i915_wedged_write,
1478         .llseek = default_llseek,
1479 };
1480
1481 static int
1482 i915_max_freq_open(struct inode *inode,
1483                    struct file *filp)
1484 {
1485         filp->private_data = inode->i_private;
1486         return 0;
1487 }
1488
1489 static ssize_t
1490 i915_max_freq_read(struct file *filp,
1491                    char __user *ubuf,
1492                    size_t max,
1493                    loff_t *ppos)
1494 {
1495         struct drm_device *dev = filp->private_data;
1496         drm_i915_private_t *dev_priv = dev->dev_private;
1497         char buf[80];
1498         int len;
1499
1500         len = snprintf(buf, sizeof(buf),
1501                        "max freq: %d\n", dev_priv->max_delay * 50);
1502
1503         if (len > sizeof(buf))
1504                 len = sizeof(buf);
1505
1506         return simple_read_from_buffer(ubuf, max, ppos, buf, len);
1507 }
1508
1509 static ssize_t
1510 i915_max_freq_write(struct file *filp,
1511                   const char __user *ubuf,
1512                   size_t cnt,
1513                   loff_t *ppos)
1514 {
1515         struct drm_device *dev = filp->private_data;
1516         struct drm_i915_private *dev_priv = dev->dev_private;
1517         char buf[20];
1518         int val = 1;
1519
1520         if (cnt > 0) {
1521                 if (cnt > sizeof(buf) - 1)
1522                         return -EINVAL;
1523
1524                 if (copy_from_user(buf, ubuf, cnt))
1525                         return -EFAULT;
1526                 buf[cnt] = 0;
1527
1528                 val = simple_strtoul(buf, NULL, 0);
1529         }
1530
1531         DRM_DEBUG_DRIVER("Manually setting max freq to %d\n", val);
1532
1533         /*
1534          * Turbo will still be enabled, but won't go above the set value.
1535          */
1536         dev_priv->max_delay = val / 50;
1537
1538         gen6_set_rps(dev, val / 50);
1539
1540         return cnt;
1541 }
1542
1543 static const struct file_operations i915_max_freq_fops = {
1544         .owner = THIS_MODULE,
1545         .open = i915_max_freq_open,
1546         .read = i915_max_freq_read,
1547         .write = i915_max_freq_write,
1548         .llseek = default_llseek,
1549 };
1550
1551 static int
1552 i915_cache_sharing_open(struct inode *inode,
1553                    struct file *filp)
1554 {
1555         filp->private_data = inode->i_private;
1556         return 0;
1557 }
1558
1559 static ssize_t
1560 i915_cache_sharing_read(struct file *filp,
1561                    char __user *ubuf,
1562                    size_t max,
1563                    loff_t *ppos)
1564 {
1565         struct drm_device *dev = filp->private_data;
1566         drm_i915_private_t *dev_priv = dev->dev_private;
1567         char buf[80];
1568         u32 snpcr;
1569         int len;
1570
1571         mutex_lock(&dev_priv->dev->struct_mutex);
1572         snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
1573         mutex_unlock(&dev_priv->dev->struct_mutex);
1574
1575         len = snprintf(buf, sizeof(buf),
1576                        "%d\n", (snpcr & GEN6_MBC_SNPCR_MASK) >>
1577                        GEN6_MBC_SNPCR_SHIFT);
1578
1579         if (len > sizeof(buf))
1580                 len = sizeof(buf);
1581
1582         return simple_read_from_buffer(ubuf, max, ppos, buf, len);
1583 }
1584
1585 static ssize_t
1586 i915_cache_sharing_write(struct file *filp,
1587                   const char __user *ubuf,
1588                   size_t cnt,
1589                   loff_t *ppos)
1590 {
1591         struct drm_device *dev = filp->private_data;
1592         struct drm_i915_private *dev_priv = dev->dev_private;
1593         char buf[20];
1594         u32 snpcr;
1595         int val = 1;
1596
1597         if (cnt > 0) {
1598                 if (cnt > sizeof(buf) - 1)
1599                         return -EINVAL;
1600
1601                 if (copy_from_user(buf, ubuf, cnt))
1602                         return -EFAULT;
1603                 buf[cnt] = 0;
1604
1605                 val = simple_strtoul(buf, NULL, 0);
1606         }
1607
1608         if (val < 0 || val > 3)
1609                 return -EINVAL;
1610
1611         DRM_DEBUG_DRIVER("Manually setting uncore sharing to %d\n", val);
1612
1613         /* Update the cache sharing policy here as well */
1614         snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
1615         snpcr &= ~GEN6_MBC_SNPCR_MASK;
1616         snpcr |= (val << GEN6_MBC_SNPCR_SHIFT);
1617         I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr);
1618
1619         return cnt;
1620 }
1621
1622 static const struct file_operations i915_cache_sharing_fops = {
1623         .owner = THIS_MODULE,
1624         .open = i915_cache_sharing_open,
1625         .read = i915_cache_sharing_read,
1626         .write = i915_cache_sharing_write,
1627         .llseek = default_llseek,
1628 };
1629
1630 /* As the drm_debugfs_init() routines are called before dev->dev_private is
1631  * allocated we need to hook into the minor for release. */
1632 static int
1633 drm_add_fake_info_node(struct drm_minor *minor,
1634                        struct dentry *ent,
1635                        const void *key)
1636 {
1637         struct drm_info_node *node;
1638
1639         node = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
1640         if (node == NULL) {
1641                 debugfs_remove(ent);
1642                 return -ENOMEM;
1643         }
1644
1645         node->minor = minor;
1646         node->dent = ent;
1647         node->info_ent = (void *) key;
1648
1649         mutex_lock(&minor->debugfs_lock);
1650         list_add(&node->list, &minor->debugfs_list);
1651         mutex_unlock(&minor->debugfs_lock);
1652
1653         return 0;
1654 }
1655
1656 static int i915_wedged_create(struct dentry *root, struct drm_minor *minor)
1657 {
1658         struct drm_device *dev = minor->dev;
1659         struct dentry *ent;
1660
1661         ent = debugfs_create_file("i915_wedged",
1662                                   S_IRUGO | S_IWUSR,
1663                                   root, dev,
1664                                   &i915_wedged_fops);
1665         if (IS_ERR(ent))
1666                 return PTR_ERR(ent);
1667
1668         return drm_add_fake_info_node(minor, ent, &i915_wedged_fops);
1669 }
1670
1671 static int i915_forcewake_open(struct inode *inode, struct file *file)
1672 {
1673         struct drm_device *dev = inode->i_private;
1674         struct drm_i915_private *dev_priv = dev->dev_private;
1675         int ret;
1676
1677         if (!IS_GEN6(dev))
1678                 return 0;
1679
1680         ret = mutex_lock_interruptible(&dev->struct_mutex);
1681         if (ret)
1682                 return ret;
1683         gen6_gt_force_wake_get(dev_priv);
1684         mutex_unlock(&dev->struct_mutex);
1685
1686         return 0;
1687 }
1688
1689 int i915_forcewake_release(struct inode *inode, struct file *file)
1690 {
1691         struct drm_device *dev = inode->i_private;
1692         struct drm_i915_private *dev_priv = dev->dev_private;
1693
1694         if (!IS_GEN6(dev))
1695                 return 0;
1696
1697         /*
1698          * It's bad that we can potentially hang userspace if struct_mutex gets
1699          * forever stuck.  However, if we cannot acquire this lock it means that
1700          * almost certainly the driver has hung, is not unload-able. Therefore
1701          * hanging here is probably a minor inconvenience not to be seen my
1702          * almost every user.
1703          */
1704         mutex_lock(&dev->struct_mutex);
1705         gen6_gt_force_wake_put(dev_priv);
1706         mutex_unlock(&dev->struct_mutex);
1707
1708         return 0;
1709 }
1710
1711 static const struct file_operations i915_forcewake_fops = {
1712         .owner = THIS_MODULE,
1713         .open = i915_forcewake_open,
1714         .release = i915_forcewake_release,
1715 };
1716
1717 static int i915_forcewake_create(struct dentry *root, struct drm_minor *minor)
1718 {
1719         struct drm_device *dev = minor->dev;
1720         struct dentry *ent;
1721
1722         ent = debugfs_create_file("i915_forcewake_user",
1723                                   S_IRUSR,
1724                                   root, dev,
1725                                   &i915_forcewake_fops);
1726         if (IS_ERR(ent))
1727                 return PTR_ERR(ent);
1728
1729         return drm_add_fake_info_node(minor, ent, &i915_forcewake_fops);
1730 }
1731
1732 static int i915_max_freq_create(struct dentry *root, struct drm_minor *minor)
1733 {
1734         struct drm_device *dev = minor->dev;
1735         struct dentry *ent;
1736
1737         ent = debugfs_create_file("i915_max_freq",
1738                                   S_IRUGO | S_IWUSR,
1739                                   root, dev,
1740                                   &i915_max_freq_fops);
1741         if (IS_ERR(ent))
1742                 return PTR_ERR(ent);
1743
1744         return drm_add_fake_info_node(minor, ent, &i915_max_freq_fops);
1745 }
1746
1747 static int i915_cache_sharing_create(struct dentry *root, struct drm_minor *minor)
1748 {
1749         struct drm_device *dev = minor->dev;
1750         struct dentry *ent;
1751
1752         ent = debugfs_create_file("i915_cache_sharing",
1753                                   S_IRUGO | S_IWUSR,
1754                                   root, dev,
1755                                   &i915_cache_sharing_fops);
1756         if (IS_ERR(ent))
1757                 return PTR_ERR(ent);
1758
1759         return drm_add_fake_info_node(minor, ent, &i915_cache_sharing_fops);
1760 }
1761
1762 static struct drm_info_list i915_debugfs_list[] = {
1763         {"i915_capabilities", i915_capabilities, 0},
1764         {"i915_gem_objects", i915_gem_object_info, 0},
1765         {"i915_gem_gtt", i915_gem_gtt_info, 0},
1766         {"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
1767         {"i915_gem_flushing", i915_gem_object_list_info, 0, (void *) FLUSHING_LIST},
1768         {"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST},
1769         {"i915_gem_pinned", i915_gem_object_list_info, 0, (void *) PINNED_LIST},
1770         {"i915_gem_deferred_free", i915_gem_object_list_info, 0, (void *) DEFERRED_FREE_LIST},
1771         {"i915_gem_pageflip", i915_gem_pageflip_info, 0},
1772         {"i915_gem_request", i915_gem_request_info, 0},
1773         {"i915_gem_seqno", i915_gem_seqno_info, 0},
1774         {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
1775         {"i915_gem_interrupt", i915_interrupt_info, 0},
1776         {"i915_gem_hws", i915_hws_info, 0, (void *)RCS},
1777         {"i915_gem_hws_blt", i915_hws_info, 0, (void *)BCS},
1778         {"i915_gem_hws_bsd", i915_hws_info, 0, (void *)VCS},
1779         {"i915_ringbuffer_data", i915_ringbuffer_data, 0, (void *)RCS},
1780         {"i915_ringbuffer_info", i915_ringbuffer_info, 0, (void *)RCS},
1781         {"i915_bsd_ringbuffer_data", i915_ringbuffer_data, 0, (void *)VCS},
1782         {"i915_bsd_ringbuffer_info", i915_ringbuffer_info, 0, (void *)VCS},
1783         {"i915_blt_ringbuffer_data", i915_ringbuffer_data, 0, (void *)BCS},
1784         {"i915_blt_ringbuffer_info", i915_ringbuffer_info, 0, (void *)BCS},
1785         {"i915_batchbuffers", i915_batchbuffer_info, 0},
1786         {"i915_error_state", i915_error_state, 0},
1787         {"i915_rstdby_delays", i915_rstdby_delays, 0},
1788         {"i915_cur_delayinfo", i915_cur_delayinfo, 0},
1789         {"i915_delayfreq_table", i915_delayfreq_table, 0},
1790         {"i915_inttoext_table", i915_inttoext_table, 0},
1791         {"i915_drpc_info", i915_drpc_info, 0},
1792         {"i915_emon_status", i915_emon_status, 0},
1793         {"i915_ring_freq_table", i915_ring_freq_table, 0},
1794         {"i915_gfxec", i915_gfxec, 0},
1795         {"i915_fbc_status", i915_fbc_status, 0},
1796         {"i915_sr_status", i915_sr_status, 0},
1797         {"i915_opregion", i915_opregion, 0},
1798         {"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
1799         {"i915_context_status", i915_context_status, 0},
1800         {"i915_gen6_forcewake_count", i915_gen6_forcewake_count_info, 0},
1801 };
1802 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
1803
1804 int i915_debugfs_init(struct drm_minor *minor)
1805 {
1806         int ret;
1807
1808         ret = i915_wedged_create(minor->debugfs_root, minor);
1809         if (ret)
1810                 return ret;
1811
1812         ret = i915_forcewake_create(minor->debugfs_root, minor);
1813         if (ret)
1814                 return ret;
1815         ret = i915_max_freq_create(minor->debugfs_root, minor);
1816         if (ret)
1817                 return ret;
1818         ret = i915_cache_sharing_create(minor->debugfs_root, minor);
1819         if (ret)
1820                 return ret;
1821
1822         return drm_debugfs_create_files(i915_debugfs_list,
1823                                         I915_DEBUGFS_ENTRIES,
1824                                         minor->debugfs_root, minor);
1825 }
1826
1827 void i915_debugfs_cleanup(struct drm_minor *minor)
1828 {
1829         drm_debugfs_remove_files(i915_debugfs_list,
1830                                  I915_DEBUGFS_ENTRIES, minor);
1831         drm_debugfs_remove_files((struct drm_info_list *) &i915_forcewake_fops,
1832                                  1, minor);
1833         drm_debugfs_remove_files((struct drm_info_list *) &i915_wedged_fops,
1834                                  1, minor);
1835         drm_debugfs_remove_files((struct drm_info_list *) &i915_max_freq_fops,
1836                                  1, minor);
1837         drm_debugfs_remove_files((struct drm_info_list *) &i915_cache_sharing_fops,
1838                                  1, minor);
1839 }
1840
1841 #endif /* CONFIG_DEBUG_FS */