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/circ_buf.h>
  31 #include <linux/ctype.h>
  32 #include <linux/debugfs.h>
  33 #include <linux/slab.h>
  34 #include <linux/export.h>
  35 #include <linux/list_sort.h>
  36 #include <asm/msr-index.h>
  37 #include <drm/drmP.h>
  38 #include "intel_drv.h"
  39 #include "intel_ringbuffer.h"
  40 #include <drm/i915_drm.h>
  41 #include "i915_drv.h"
  42
  43 #if defined(CONFIG_DEBUG_FS)
  44
  45 enum {
  46         ACTIVE_LIST,
  47         INACTIVE_LIST,
  48         PINNED_LIST,
  49 };
  50
  51 static const char *yesno(int v)
  52 {
  53         return v ? "yes" : "no";
  54 }
  55
  56 /* As the drm_debugfs_init() routines are called before dev->dev_private is
  57  * allocated we need to hook into the minor for release. */
  58 static int
  59 drm_add_fake_info_node(struct drm_minor *minor,
  60                        struct dentry *ent,
  61                        const void *key)
  62 {
  63         struct drm_info_node *node;
  64
  65         node = kmalloc(sizeof(*node), GFP_KERNEL);
  66         if (node == NULL) {
  67                 debugfs_remove(ent);
  68                 return -ENOMEM;
  69         }
  70
  71         node->minor = minor;
  72         node->dent = ent;
  73         node->info_ent = (void *) key;
  74
  75         mutex_lock(&minor->debugfs_lock);
  76         list_add(&node->list, &minor->debugfs_list);
  77         mutex_unlock(&minor->debugfs_lock);
  78
  79         return 0;
  80 }
  81
  82 static int i915_capabilities(struct seq_file *m, void *data)
  83 {
  84         struct drm_info_node *node = (struct drm_info_node *) m->private;
  85         struct drm_device *dev = node->minor->dev;
  86         const struct intel_device_info *info = INTEL_INFO(dev);
  87
  88         seq_printf(m, "gen: %d\n", info->gen);
  89         seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev));
  90 #define PRINT_FLAG(x)  seq_printf(m, #x ": %s\n", yesno(info->x))
  91 #define SEP_SEMICOLON ;
  92         DEV_INFO_FOR_EACH_FLAG(PRINT_FLAG, SEP_SEMICOLON);
  93 #undef PRINT_FLAG
  94 #undef SEP_SEMICOLON
  95
  96         return 0;
  97 }
  98
  99 static const char *get_pin_flag(struct drm_i915_gem_object *obj)
 100 {
 101         if (obj->user_pin_count > 0)
 102                 return "P";
 103         else if (obj->pin_count > 0)
 104                 return "p";
 105         else
 106                 return " ";
 107 }
 108
 109 static const char *get_tiling_flag(struct drm_i915_gem_object *obj)
 110 {
 111         switch (obj->tiling_mode) {
 112         default:
 113         case I915_TILING_NONE: return " ";
 114         case I915_TILING_X: return "X";
 115         case I915_TILING_Y: return "Y";
 116         }
 117 }
 118
 119 static inline const char *get_global_flag(struct drm_i915_gem_object *obj)
 120 {
 121         return obj->has_global_gtt_mapping ? "g" : " ";
 122 }
 123
 124 static void
 125 describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
 126 {
 127         struct i915_vma *vma;
 128         seq_printf(m, "%pK: %s%s%s %8zdKiB %02x %02x %u %u %u%s%s%s",
 129                    &obj->base,
 130                    get_pin_flag(obj),
 131                    get_tiling_flag(obj),
 132                    get_global_flag(obj),
 133                    obj->base.size / 1024,
 134                    obj->base.read_domains,
 135                    obj->base.write_domain,
 136                    obj->last_read_seqno,
 137                    obj->last_write_seqno,
 138                    obj->last_fenced_seqno,
 139                    i915_cache_level_str(obj->cache_level),
 140                    obj->dirty ? " dirty" : "",
 141                    obj->madv == I915_MADV_DONTNEED ? " purgeable" : "");
 142         if (obj->base.name)
 143                 seq_printf(m, " (name: %d)", obj->base.name);
 144         if (obj->pin_count)
 145                 seq_printf(m, " (pinned x %d)", obj->pin_count);
 146         if (obj->pin_display)
 147                 seq_printf(m, " (display)");
 148         if (obj->fence_reg != I915_FENCE_REG_NONE)
 149                 seq_printf(m, " (fence: %d)", obj->fence_reg);
 150         list_for_each_entry(vma, &obj->vma_list, vma_link) {
 151                 if (!i915_is_ggtt(vma->vm))
 152                         seq_puts(m, " (pp");
 153                 else
 154                         seq_puts(m, " (g");
 155                 seq_printf(m, "gtt offset: %08lx, size: %08lx)",
 156                            vma->node.start, vma->node.size);
 157         }
 158         if (obj->stolen)
 159                 seq_printf(m, " (stolen: %08lx)", obj->stolen->start);
 160         if (obj->pin_mappable || obj->fault_mappable) {
 161                 char s[3], *t = s;
 162                 if (obj->pin_mappable)
 163                         *t++ = 'p';
 164                 if (obj->fault_mappable)
 165                         *t++ = 'f';
 166                 *t = '\0';
 167                 seq_printf(m, " (%s mappable)", s);
 168         }
 169         if (obj->ring != NULL)
 170                 seq_printf(m, " (%s)", obj->ring->name);
 171 }
 172
 173 static void describe_ctx(struct seq_file *m, struct i915_hw_context *ctx)
 174 {
 175         seq_putc(m, ctx->is_initialized ? 'I' : 'i');
 176         seq_putc(m, ctx->remap_slice ? 'R' : 'r');
 177         seq_putc(m, ' ');
 178 }
 179
 180 static int i915_gem_object_list_info(struct seq_file *m, void *data)
 181 {
 182         struct drm_info_node *node = (struct drm_info_node *) m->private;
 183         uintptr_t list = (uintptr_t) node->info_ent->data;
 184         struct list_head *head;
 185         struct drm_device *dev = node->minor->dev;
 186         struct drm_i915_private *dev_priv = dev->dev_private;
 187         struct i915_address_space *vm = &dev_priv->gtt.base;
 188         struct i915_vma *vma;
 189         size_t total_obj_size, total_gtt_size;
 190         int count, ret;
 191
 192         ret = mutex_lock_interruptible(&dev->struct_mutex);
 193         if (ret)
 194                 return ret;
 195
 196         /* FIXME: the user of this interface might want more than just GGTT */
 197         switch (list) {
 198         case ACTIVE_LIST:
 199                 seq_puts(m, "Active:\n");
 200                 head = &vm->active_list;
 201                 break;
 202         case INACTIVE_LIST:
 203                 seq_puts(m, "Inactive:\n");
 204                 head = &vm->inactive_list;
 205                 break;
 206         default:
 207                 mutex_unlock(&dev->struct_mutex);
 208                 return -EINVAL;
 209         }
 210
 211         total_obj_size = total_gtt_size = count = 0;
 212         list_for_each_entry(vma, head, mm_list) {
 213                 seq_printf(m, "   ");
 214                 describe_obj(m, vma->obj);
 215                 seq_printf(m, "\n");
 216                 total_obj_size += vma->obj->base.size;
 217                 total_gtt_size += vma->node.size;
 218                 count++;
 219         }
 220         mutex_unlock(&dev->struct_mutex);
 221
 222         seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
 223                    count, total_obj_size, total_gtt_size);
 224         return 0;
 225 }
 226
 227 static int obj_rank_by_stolen(void *priv,
 228                               struct list_head *A, struct list_head *B)
 229 {
 230         struct drm_i915_gem_object *a =
 231                 container_of(A, struct drm_i915_gem_object, obj_exec_link);
 232         struct drm_i915_gem_object *b =
 233                 container_of(B, struct drm_i915_gem_object, obj_exec_link);
 234
 235         return a->stolen->start - b->stolen->start;
 236 }
 237
 238 static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
 239 {
 240         struct drm_info_node *node = (struct drm_info_node *) m->private;
 241         struct drm_device *dev = node->minor->dev;
 242         struct drm_i915_private *dev_priv = dev->dev_private;
 243         struct drm_i915_gem_object *obj;
 244         size_t total_obj_size, total_gtt_size;
 245         LIST_HEAD(stolen);
 246         int count, ret;
 247
 248         ret = mutex_lock_interruptible(&dev->struct_mutex);
 249         if (ret)
 250                 return ret;
 251
 252         total_obj_size = total_gtt_size = count = 0;
 253         list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
 254                 if (obj->stolen == NULL)
 255                         continue;
 256
 257                 list_add(&obj->obj_exec_link, &stolen);
 258
 259                 total_obj_size += obj->base.size;
 260                 total_gtt_size += i915_gem_obj_ggtt_size(obj);
 261                 count++;
 262         }
 263         list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) {
 264                 if (obj->stolen == NULL)
 265                         continue;
 266
 267                 list_add(&obj->obj_exec_link, &stolen);
 268
 269                 total_obj_size += obj->base.size;
 270                 count++;
 271         }
 272         list_sort(NULL, &stolen, obj_rank_by_stolen);
 273         seq_puts(m, "Stolen:\n");
 274         while (!list_empty(&stolen)) {
 275                 obj = list_first_entry(&stolen, typeof(*obj), obj_exec_link);
 276                 seq_puts(m, "   ");
 277                 describe_obj(m, obj);
 278                 seq_putc(m, '\n');
 279                 list_del_init(&obj->obj_exec_link);
 280         }
 281         mutex_unlock(&dev->struct_mutex);
 282
 283         seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
 284                    count, total_obj_size, total_gtt_size);
 285         return 0;
 286 }
 287
 288 #define count_objects(list, member) do { \
 289         list_for_each_entry(obj, list, member) { \
 290                 size += i915_gem_obj_ggtt_size(obj); \
 291                 ++count; \
 292                 if (obj->map_and_fenceable) { \
 293                         mappable_size += i915_gem_obj_ggtt_size(obj); \
 294                         ++mappable_count; \
 295                 } \
 296         } \
 297 } while (0)
 298
 299 struct file_stats {
 300         int count;
 301         size_t total, active, inactive, unbound;
 302 };
 303
 304 static int per_file_stats(int id, void *ptr, void *data)
 305 {
 306         struct drm_i915_gem_object *obj = ptr;
 307         struct file_stats *stats = data;
 308
 309         stats->count++;
 310         stats->total += obj->base.size;
 311
 312         if (i915_gem_obj_ggtt_bound(obj)) {
 313                 if (!list_empty(&obj->ring_list))
 314                         stats->active += obj->base.size;
 315                 else
 316                         stats->inactive += obj->base.size;
 317         } else {
 318                 if (!list_empty(&obj->global_list))
 319                         stats->unbound += obj->base.size;
 320         }
 321
 322         return 0;
 323 }
 324
 325 #define count_vmas(list, member) do { \
 326         list_for_each_entry(vma, list, member) { \
 327                 size += i915_gem_obj_ggtt_size(vma->obj); \
 328                 ++count; \
 329                 if (vma->obj->map_and_fenceable) { \
 330                         mappable_size += i915_gem_obj_ggtt_size(vma->obj); \
 331                         ++mappable_count; \
 332                 } \
 333         } \
 334 } while (0)
 335
 336 static int i915_gem_object_info(struct seq_file *m, void* data)
 337 {
 338         struct drm_info_node *node = (struct drm_info_node *) m->private;
 339         struct drm_device *dev = node->minor->dev;
 340         struct drm_i915_private *dev_priv = dev->dev_private;
 341         u32 count, mappable_count, purgeable_count;
 342         size_t size, mappable_size, purgeable_size;
 343         struct drm_i915_gem_object *obj;
 344         struct i915_address_space *vm = &dev_priv->gtt.base;
 345         struct drm_file *file;
 346         struct i915_vma *vma;
 347         int ret;
 348
 349         ret = mutex_lock_interruptible(&dev->struct_mutex);
 350         if (ret)
 351                 return ret;
 352
 353         seq_printf(m, "%u objects, %zu bytes\n",
 354                    dev_priv->mm.object_count,
 355                    dev_priv->mm.object_memory);
 356
 357         size = count = mappable_size = mappable_count = 0;
 358         count_objects(&dev_priv->mm.bound_list, global_list);
 359         seq_printf(m, "%u [%u] objects, %zu [%zu] bytes in gtt\n",
 360                    count, mappable_count, size, mappable_size);
 361
 362         size = count = mappable_size = mappable_count = 0;
 363         count_vmas(&vm->active_list, mm_list);
 364         seq_printf(m, "  %u [%u] active objects, %zu [%zu] bytes\n",
 365                    count, mappable_count, size, mappable_size);
 366
 367         size = count = mappable_size = mappable_count = 0;
 368         count_vmas(&vm->inactive_list, mm_list);
 369         seq_printf(m, "  %u [%u] inactive objects, %zu [%zu] bytes\n",
 370                    count, mappable_count, size, mappable_size);
 371
 372         size = count = purgeable_size = purgeable_count = 0;
 373         list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) {
 374                 size += obj->base.size, ++count;
 375                 if (obj->madv == I915_MADV_DONTNEED)
 376                         purgeable_size += obj->base.size, ++purgeable_count;
 377         }
 378         seq_printf(m, "%u unbound objects, %zu bytes\n", count, size);
 379
 380         size = count = mappable_size = mappable_count = 0;
 381         list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
 382                 if (obj->fault_mappable) {
 383                         size += i915_gem_obj_ggtt_size(obj);
 384                         ++count;
 385                 }
 386                 if (obj->pin_mappable) {
 387                         mappable_size += i915_gem_obj_ggtt_size(obj);
 388                         ++mappable_count;
 389                 }
 390                 if (obj->madv == I915_MADV_DONTNEED) {
 391                         purgeable_size += obj->base.size;
 392                         ++purgeable_count;
 393                 }
 394         }
 395         seq_printf(m, "%u purgeable objects, %zu bytes\n",
 396                    purgeable_count, purgeable_size);
 397         seq_printf(m, "%u pinned mappable objects, %zu bytes\n",
 398                    mappable_count, mappable_size);
 399         seq_printf(m, "%u fault mappable objects, %zu bytes\n",
 400                    count, size);
 401
 402         seq_printf(m, "%zu [%lu] gtt total\n",
 403                    dev_priv->gtt.base.total,
 404                    dev_priv->gtt.mappable_end - dev_priv->gtt.base.start);
 405
 406         seq_putc(m, '\n');
 407         list_for_each_entry_reverse(file, &dev->filelist, lhead) {
 408                 struct file_stats stats;
 409
 410                 memset(&stats, 0, sizeof(stats));
 411                 idr_for_each(&file->object_idr, per_file_stats, &stats);
 412                 seq_printf(m, "%s: %u objects, %zu bytes (%zu active, %zu inactive, %zu unbound)\n",
 413                            get_pid_task(file->pid, PIDTYPE_PID)->comm,
 414                            stats.count,
 415                            stats.total,
 416                            stats.active,
 417                            stats.inactive,
 418                            stats.unbound);
 419         }
 420
 421         mutex_unlock(&dev->struct_mutex);
 422
 423         return 0;
 424 }
 425
 426 static int i915_gem_gtt_info(struct seq_file *m, void *data)
 427 {
 428         struct drm_info_node *node = (struct drm_info_node *) m->private;
 429         struct drm_device *dev = node->minor->dev;
 430         uintptr_t list = (uintptr_t) node->info_ent->data;
 431         struct drm_i915_private *dev_priv = dev->dev_private;
 432         struct drm_i915_gem_object *obj;
 433         size_t total_obj_size, total_gtt_size;
 434         int count, ret;
 435
 436         ret = mutex_lock_interruptible(&dev->struct_mutex);
 437         if (ret)
 438                 return ret;
 439
 440         total_obj_size = total_gtt_size = count = 0;
 441         list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
 442                 if (list == PINNED_LIST && obj->pin_count == 0)
 443                         continue;
 444
 445                 seq_puts(m, "   ");
 446                 describe_obj(m, obj);
 447                 seq_putc(m, '\n');
 448                 total_obj_size += obj->base.size;
 449                 total_gtt_size += i915_gem_obj_ggtt_size(obj);
 450                 count++;
 451         }
 452
 453         mutex_unlock(&dev->struct_mutex);
 454
 455         seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
 456                    count, total_obj_size, total_gtt_size);
 457
 458         return 0;
 459 }
 460
 461 static int i915_gem_pageflip_info(struct seq_file *m, void *data)
 462 {
 463         struct drm_info_node *node = (struct drm_info_node *) m->private;
 464         struct drm_device *dev = node->minor->dev;
 465         unsigned long flags;
 466         struct intel_crtc *crtc;
 467
 468         list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
 469                 const char pipe = pipe_name(crtc->pipe);
 470                 const char plane = plane_name(crtc->plane);
 471                 struct intel_unpin_work *work;
 472
 473                 spin_lock_irqsave(&dev->event_lock, flags);
 474                 work = crtc->unpin_work;
 475                 if (work == NULL) {
 476                         seq_printf(m, "No flip due on pipe %c (plane %c)\n",
 477                                    pipe, plane);
 478                 } else {
 479                         if (atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
 480                                 seq_printf(m, "Flip queued on pipe %c (plane %c)\n",
 481                                            pipe, plane);
 482                         } else {
 483                                 seq_printf(m, "Flip pending (waiting for vsync) on pipe %c (plane %c)\n",
 484                                            pipe, plane);
 485                         }
 486                         if (work->enable_stall_check)
 487                                 seq_puts(m, "Stall check enabled, ");
 488                         else
 489                                 seq_puts(m, "Stall check waiting for page flip ioctl, ");
 490                         seq_printf(m, "%d prepares\n", atomic_read(&work->pending));
 491
 492                         if (work->old_fb_obj) {
 493                                 struct drm_i915_gem_object *obj = work->old_fb_obj;
 494                                 if (obj)
 495                                         seq_printf(m, "Old framebuffer gtt_offset 0x%08lx\n",
 496                                                    i915_gem_obj_ggtt_offset(obj));
 497                         }
 498                         if (work->pending_flip_obj) {
 499                                 struct drm_i915_gem_object *obj = work->pending_flip_obj;
 500                                 if (obj)
 501                                         seq_printf(m, "New framebuffer gtt_offset 0x%08lx\n",
 502                                                    i915_gem_obj_ggtt_offset(obj));
 503                         }
 504                 }
 505                 spin_unlock_irqrestore(&dev->event_lock, flags);
 506         }
 507
 508         return 0;
 509 }
 510
 511 static int i915_gem_request_info(struct seq_file *m, void *data)
 512 {
 513         struct drm_info_node *node = (struct drm_info_node *) m->private;
 514         struct drm_device *dev = node->minor->dev;
 515         drm_i915_private_t *dev_priv = dev->dev_private;
 516         struct intel_ring_buffer *ring;
 517         struct drm_i915_gem_request *gem_request;
 518         int ret, count, i;
 519
 520         ret = mutex_lock_interruptible(&dev->struct_mutex);
 521         if (ret)
 522                 return ret;
 523
 524         count = 0;
 525         for_each_ring(ring, dev_priv, i) {
 526                 if (list_empty(&ring->request_list))
 527                         continue;
 528
 529                 seq_printf(m, "%s requests:\n", ring->name);
 530                 list_for_each_entry(gem_request,
 531                                     &ring->request_list,
 532                                     list) {
 533                         seq_printf(m, "    %d @ %d\n",
 534                                    gem_request->seqno,
 535                                    (int) (jiffies - gem_request->emitted_jiffies));
 536                 }
 537                 count++;
 538         }
 539         mutex_unlock(&dev->struct_mutex);
 540
 541         if (count == 0)
 542                 seq_puts(m, "No requests\n");
 543
 544         return 0;
 545 }
 546
 547 static void i915_ring_seqno_info(struct seq_file *m,
 548                                  struct intel_ring_buffer *ring)
 549 {
 550         if (ring->get_seqno) {
 551                 seq_printf(m, "Current sequence (%s): %u\n",
 552                            ring->name, ring->get_seqno(ring, false));
 553         }
 554 }
 555
 556 static int i915_gem_seqno_info(struct seq_file *m, void *data)
 557 {
 558         struct drm_info_node *node = (struct drm_info_node *) m->private;
 559         struct drm_device *dev = node->minor->dev;
 560         drm_i915_private_t *dev_priv = dev->dev_private;
 561         struct intel_ring_buffer *ring;
 562         int ret, i;
 563
 564         ret = mutex_lock_interruptible(&dev->struct_mutex);
 565         if (ret)
 566                 return ret;
 567
 568         for_each_ring(ring, dev_priv, i)
 569                 i915_ring_seqno_info(m, ring);
 570
 571         mutex_unlock(&dev->struct_mutex);
 572
 573         return 0;
 574 }
 575
 576
 577 static int i915_interrupt_info(struct seq_file *m, void *data)
 578 {
 579         struct drm_info_node *node = (struct drm_info_node *) m->private;
 580         struct drm_device *dev = node->minor->dev;
 581         drm_i915_private_t *dev_priv = dev->dev_private;
 582         struct intel_ring_buffer *ring;
 583         int ret, i, pipe;
 584
 585         ret = mutex_lock_interruptible(&dev->struct_mutex);
 586         if (ret)
 587                 return ret;
 588
 589         if (IS_VALLEYVIEW(dev)) {
 590                 seq_printf(m, "Display IER:\t%08x\n",
 591                            I915_READ(VLV_IER));
 592                 seq_printf(m, "Display IIR:\t%08x\n",
 593                            I915_READ(VLV_IIR));
 594                 seq_printf(m, "Display IIR_RW:\t%08x\n",
 595                            I915_READ(VLV_IIR_RW));
 596                 seq_printf(m, "Display IMR:\t%08x\n",
 597                            I915_READ(VLV_IMR));
 598                 for_each_pipe(pipe)
 599                         seq_printf(m, "Pipe %c stat:\t%08x\n",
 600                                    pipe_name(pipe),
 601                                    I915_READ(PIPESTAT(pipe)));
 602
 603                 seq_printf(m, "Master IER:\t%08x\n",
 604                            I915_READ(VLV_MASTER_IER));
 605
 606                 seq_printf(m, "Render IER:\t%08x\n",
 607                            I915_READ(GTIER));
 608                 seq_printf(m, "Render IIR:\t%08x\n",
 609                            I915_READ(GTIIR));
 610                 seq_printf(m, "Render IMR:\t%08x\n",
 611                            I915_READ(GTIMR));
 612
 613                 seq_printf(m, "PM IER:\t\t%08x\n",
 614                            I915_READ(GEN6_PMIER));
 615                 seq_printf(m, "PM IIR:\t\t%08x\n",
 616                            I915_READ(GEN6_PMIIR));
 617                 seq_printf(m, "PM IMR:\t\t%08x\n",
 618                            I915_READ(GEN6_PMIMR));
 619
 620                 seq_printf(m, "Port hotplug:\t%08x\n",
 621                            I915_READ(PORT_HOTPLUG_EN));
 622                 seq_printf(m, "DPFLIPSTAT:\t%08x\n",
 623                            I915_READ(VLV_DPFLIPSTAT));
 624                 seq_printf(m, "DPINVGTT:\t%08x\n",
 625                            I915_READ(DPINVGTT));
 626
 627         } else if (!HAS_PCH_SPLIT(dev)) {
 628                 seq_printf(m, "Interrupt enable:    %08x\n",
 629                            I915_READ(IER));
 630                 seq_printf(m, "Interrupt identity:  %08x\n",
 631                            I915_READ(IIR));
 632                 seq_printf(m, "Interrupt mask:      %08x\n",
 633                            I915_READ(IMR));
 634                 for_each_pipe(pipe)
 635                         seq_printf(m, "Pipe %c stat:         %08x\n",
 636                                    pipe_name(pipe),
 637                                    I915_READ(PIPESTAT(pipe)));
 638         } else {
 639                 seq_printf(m, "North Display Interrupt enable:          %08x\n",
 640                            I915_READ(DEIER));
 641                 seq_printf(m, "North Display Interrupt identity:        %08x\n",
 642                            I915_READ(DEIIR));
 643                 seq_printf(m, "North Display Interrupt mask:            %08x\n",
 644                            I915_READ(DEIMR));
 645                 seq_printf(m, "South Display Interrupt enable:          %08x\n",
 646                            I915_READ(SDEIER));
 647                 seq_printf(m, "South Display Interrupt identity:        %08x\n",
 648                            I915_READ(SDEIIR));
 649                 seq_printf(m, "South Display Interrupt mask:            %08x\n",
 650                            I915_READ(SDEIMR));
 651                 seq_printf(m, "Graphics Interrupt enable:               %08x\n",
 652                            I915_READ(GTIER));
 653                 seq_printf(m, "Graphics Interrupt identity:             %08x\n",
 654                            I915_READ(GTIIR));
 655                 seq_printf(m, "Graphics Interrupt mask:         %08x\n",
 656                            I915_READ(GTIMR));
 657         }
 658         seq_printf(m, "Interrupts received: %d\n",
 659                    atomic_read(&dev_priv->irq_received));
 660         for_each_ring(ring, dev_priv, i) {
 661                 if (IS_GEN6(dev) || IS_GEN7(dev)) {
 662                         seq_printf(m,
 663                                    "Graphics Interrupt mask (%s):       %08x\n",
 664                                    ring->name, I915_READ_IMR(ring));
 665                 }
 666                 i915_ring_seqno_info(m, ring);
 667         }
 668         mutex_unlock(&dev->struct_mutex);
 669
 670         return 0;
 671 }
 672
 673 static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
 674 {
 675         struct drm_info_node *node = (struct drm_info_node *) m->private;
 676         struct drm_device *dev = node->minor->dev;
 677         drm_i915_private_t *dev_priv = dev->dev_private;
 678         int i, ret;
 679
 680         ret = mutex_lock_interruptible(&dev->struct_mutex);
 681         if (ret)
 682                 return ret;
 683
 684         seq_printf(m, "Reserved fences = %d\n", dev_priv->fence_reg_start);
 685         seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
 686         for (i = 0; i < dev_priv->num_fence_regs; i++) {
 687                 struct drm_i915_gem_object *obj = dev_priv->fence_regs[i].obj;
 688
 689                 seq_printf(m, "Fence %d, pin count = %d, object = ",
 690                            i, dev_priv->fence_regs[i].pin_count);
 691                 if (obj == NULL)
 692                         seq_puts(m, "unused");
 693                 else
 694                         describe_obj(m, obj);
 695                 seq_putc(m, '\n');
 696         }
 697
 698         mutex_unlock(&dev->struct_mutex);
 699         return 0;
 700 }
 701
 702 static int i915_hws_info(struct seq_file *m, void *data)
 703 {
 704         struct drm_info_node *node = (struct drm_info_node *) m->private;
 705         struct drm_device *dev = node->minor->dev;
 706         drm_i915_private_t *dev_priv = dev->dev_private;
 707         struct intel_ring_buffer *ring;
 708         const u32 *hws;
 709         int i;
 710
 711         ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
 712         hws = ring->status_page.page_addr;
 713         if (hws == NULL)
 714                 return 0;
 715
 716         for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
 717                 seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
 718                            i * 4,
 719                            hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
 720         }
 721         return 0;
 722 }
 723
 724 static ssize_t
 725 i915_error_state_write(struct file *filp,
 726                        const char __user *ubuf,
 727                        size_t cnt,
 728                        loff_t *ppos)
 729 {
 730         struct i915_error_state_file_priv *error_priv = filp->private_data;
 731         struct drm_device *dev = error_priv->dev;
 732         int ret;
 733
 734         DRM_DEBUG_DRIVER("Resetting error state\n");
 735
 736         ret = mutex_lock_interruptible(&dev->struct_mutex);
 737         if (ret)
 738                 return ret;
 739
 740         i915_destroy_error_state(dev);
 741         mutex_unlock(&dev->struct_mutex);
 742
 743         return cnt;
 744 }
 745
 746 static int i915_error_state_open(struct inode *inode, struct file *file)
 747 {
 748         struct drm_device *dev = inode->i_private;
 749         struct i915_error_state_file_priv *error_priv;
 750
 751         error_priv = kzalloc(sizeof(*error_priv), GFP_KERNEL);
 752         if (!error_priv)
 753                 return -ENOMEM;
 754
 755         error_priv->dev = dev;
 756
 757         i915_error_state_get(dev, error_priv);
 758
 759         file->private_data = error_priv;
 760
 761         return 0;
 762 }
 763
 764 static int i915_error_state_release(struct inode *inode, struct file *file)
 765 {
 766         struct i915_error_state_file_priv *error_priv = file->private_data;
 767
 768         i915_error_state_put(error_priv);
 769         kfree(error_priv);
 770
 771         return 0;
 772 }
 773
 774 static ssize_t i915_error_state_read(struct file *file, char __user *userbuf,
 775                                      size_t count, loff_t *pos)
 776 {
 777         struct i915_error_state_file_priv *error_priv = file->private_data;
 778         struct drm_i915_error_state_buf error_str;
 779         loff_t tmp_pos = 0;
 780         ssize_t ret_count = 0;
 781         int ret;
 782
 783         ret = i915_error_state_buf_init(&error_str, count, *pos);
 784         if (ret)
 785                 return ret;
 786
 787         ret = i915_error_state_to_str(&error_str, error_priv);
 788         if (ret)
 789                 goto out;
 790
 791         ret_count = simple_read_from_buffer(userbuf, count, &tmp_pos,
 792                                             error_str.buf,
 793                                             error_str.bytes);
 794
 795         if (ret_count < 0)
 796                 ret = ret_count;
 797         else
 798                 *pos = error_str.start + ret_count;
 799 out:
 800         i915_error_state_buf_release(&error_str);
 801         return ret ?: ret_count;
 802 }
 803
 804 static const struct file_operations i915_error_state_fops = {
 805         .owner = THIS_MODULE,
 806         .open = i915_error_state_open,
 807         .read = i915_error_state_read,
 808         .write = i915_error_state_write,
 809         .llseek = default_llseek,
 810         .release = i915_error_state_release,
 811 };
 812
 813 static int
 814 i915_next_seqno_get(void *data, u64 *val)
 815 {
 816         struct drm_device *dev = data;
 817         drm_i915_private_t *dev_priv = dev->dev_private;
 818         int ret;
 819
 820         ret = mutex_lock_interruptible(&dev->struct_mutex);
 821         if (ret)
 822                 return ret;
 823
 824         *val = dev_priv->next_seqno;
 825         mutex_unlock(&dev->struct_mutex);
 826
 827         return 0;
 828 }
 829
 830 static int
 831 i915_next_seqno_set(void *data, u64 val)
 832 {
 833         struct drm_device *dev = data;
 834         int ret;
 835
 836         ret = mutex_lock_interruptible(&dev->struct_mutex);
 837         if (ret)
 838                 return ret;
 839
 840         ret = i915_gem_set_seqno(dev, val);
 841         mutex_unlock(&dev->struct_mutex);
 842
 843         return ret;
 844 }
 845
 846 DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops,
 847                         i915_next_seqno_get, i915_next_seqno_set,
 848                         "0x%llx\n");
 849
 850 static int i915_rstdby_delays(struct seq_file *m, void *unused)
 851 {
 852         struct drm_info_node *node = (struct drm_info_node *) m->private;
 853         struct drm_device *dev = node->minor->dev;
 854         drm_i915_private_t *dev_priv = dev->dev_private;
 855         u16 crstanddelay;
 856         int ret;
 857
 858         ret = mutex_lock_interruptible(&dev->struct_mutex);
 859         if (ret)
 860                 return ret;
 861
 862         crstanddelay = I915_READ16(CRSTANDVID);
 863
 864         mutex_unlock(&dev->struct_mutex);
 865
 866         seq_printf(m, "w/ctx: %d, w/o ctx: %d\n", (crstanddelay >> 8) & 0x3f, (crstanddelay & 0x3f));
 867
 868         return 0;
 869 }
 870
 871 static int i915_cur_delayinfo(struct seq_file *m, void *unused)
 872 {
 873         struct drm_info_node *node = (struct drm_info_node *) m->private;
 874         struct drm_device *dev = node->minor->dev;
 875         drm_i915_private_t *dev_priv = dev->dev_private;
 876         int ret;
 877
 878         flush_delayed_work(&dev_priv->rps.delayed_resume_work);
 879
 880         if (IS_GEN5(dev)) {
 881                 u16 rgvswctl = I915_READ16(MEMSWCTL);
 882                 u16 rgvstat = I915_READ16(MEMSTAT_ILK);
 883
 884                 seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
 885                 seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
 886                 seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
 887                            MEMSTAT_VID_SHIFT);
 888                 seq_printf(m, "Current P-state: %d\n",
 889                            (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
 890         } else if ((IS_GEN6(dev) || IS_GEN7(dev)) && !IS_VALLEYVIEW(dev)) {
 891                 u32 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
 892                 u32 rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
 893                 u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
 894                 u32 rpstat, cagf, reqf;
 895                 u32 rpupei, rpcurup, rpprevup;
 896                 u32 rpdownei, rpcurdown, rpprevdown;
 897                 int max_freq;
 898
 899                 /* RPSTAT1 is in the GT power well */
 900                 ret = mutex_lock_interruptible(&dev->struct_mutex);
 901                 if (ret)
 902                         return ret;
 903
 904                 gen6_gt_force_wake_get(dev_priv);
 905
 906                 reqf = I915_READ(GEN6_RPNSWREQ);
 907                 reqf &= ~GEN6_TURBO_DISABLE;
 908                 if (IS_HASWELL(dev))
 909                         reqf >>= 24;
 910                 else
 911                         reqf >>= 25;
 912                 reqf *= GT_FREQUENCY_MULTIPLIER;
 913
 914                 rpstat = I915_READ(GEN6_RPSTAT1);
 915                 rpupei = I915_READ(GEN6_RP_CUR_UP_EI);
 916                 rpcurup = I915_READ(GEN6_RP_CUR_UP);
 917                 rpprevup = I915_READ(GEN6_RP_PREV_UP);
 918                 rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI);
 919                 rpcurdown = I915_READ(GEN6_RP_CUR_DOWN);
 920                 rpprevdown = I915_READ(GEN6_RP_PREV_DOWN);
 921                 if (IS_HASWELL(dev))
 922                         cagf = (rpstat & HSW_CAGF_MASK) >> HSW_CAGF_SHIFT;
 923                 else
 924                         cagf = (rpstat & GEN6_CAGF_MASK) >> GEN6_CAGF_SHIFT;
 925                 cagf *= GT_FREQUENCY_MULTIPLIER;
 926
 927                 gen6_gt_force_wake_put(dev_priv);
 928                 mutex_unlock(&dev->struct_mutex);
 929
 930                 seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
 931                 seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
 932                 seq_printf(m, "Render p-state ratio: %d\n",
 933                            (gt_perf_status & 0xff00) >> 8);
 934                 seq_printf(m, "Render p-state VID: %d\n",
 935                            gt_perf_status & 0xff);
 936                 seq_printf(m, "Render p-state limit: %d\n",
 937                            rp_state_limits & 0xff);
 938                 seq_printf(m, "RPNSWREQ: %dMHz\n", reqf);
 939                 seq_printf(m, "CAGF: %dMHz\n", cagf);
 940                 seq_printf(m, "RP CUR UP EI: %dus\n", rpupei &
 941                            GEN6_CURICONT_MASK);
 942                 seq_printf(m, "RP CUR UP: %dus\n", rpcurup &
 943                            GEN6_CURBSYTAVG_MASK);
 944                 seq_printf(m, "RP PREV UP: %dus\n", rpprevup &
 945                            GEN6_CURBSYTAVG_MASK);
 946                 seq_printf(m, "RP CUR DOWN EI: %dus\n", rpdownei &
 947                            GEN6_CURIAVG_MASK);
 948                 seq_printf(m, "RP CUR DOWN: %dus\n", rpcurdown &
 949                            GEN6_CURBSYTAVG_MASK);
 950                 seq_printf(m, "RP PREV DOWN: %dus\n", rpprevdown &
 951                            GEN6_CURBSYTAVG_MASK);
 952
 953                 max_freq = (rp_state_cap & 0xff0000) >> 16;
 954                 seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
 955                            max_freq * GT_FREQUENCY_MULTIPLIER);
 956
 957                 max_freq = (rp_state_cap & 0xff00) >> 8;
 958                 seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
 959                            max_freq * GT_FREQUENCY_MULTIPLIER);
 960
 961                 max_freq = rp_state_cap & 0xff;
 962                 seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
 963                            max_freq * GT_FREQUENCY_MULTIPLIER);
 964
 965                 seq_printf(m, "Max overclocked frequency: %dMHz\n",
 966                            dev_priv->rps.hw_max * GT_FREQUENCY_MULTIPLIER);
 967         } else if (IS_VALLEYVIEW(dev)) {
 968                 u32 freq_sts, val;
 969
 970                 mutex_lock(&dev_priv->rps.hw_lock);
 971                 freq_sts = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
 972                 seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
 973                 seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
 974
 975                 val = vlv_punit_read(dev_priv, PUNIT_FUSE_BUS1);
 976                 seq_printf(m, "max GPU freq: %d MHz\n",
 977                            vlv_gpu_freq(dev_priv->mem_freq, val));
 978
 979                 val = vlv_punit_read(dev_priv, PUNIT_REG_GPU_LFM);
 980                 seq_printf(m, "min GPU freq: %d MHz\n",
 981                            vlv_gpu_freq(dev_priv->mem_freq, val));
 982
 983                 seq_printf(m, "current GPU freq: %d MHz\n",
 984                            vlv_gpu_freq(dev_priv->mem_freq,
 985                                         (freq_sts >> 8) & 0xff));
 986                 mutex_unlock(&dev_priv->rps.hw_lock);
 987         } else {
 988                 seq_puts(m, "no P-state info available\n");
 989         }
 990
 991         return 0;
 992 }
 993
 994 static int i915_delayfreq_table(struct seq_file *m, void *unused)
 995 {
 996         struct drm_info_node *node = (struct drm_info_node *) m->private;
 997         struct drm_device *dev = node->minor->dev;
 998         drm_i915_private_t *dev_priv = dev->dev_private;
 999         u32 delayfreq;
1000         int ret, i;
1001
1002         ret = mutex_lock_interruptible(&dev->struct_mutex);
1003         if (ret)
1004                 return ret;
1005
1006         for (i = 0; i < 16; i++) {
1007                 delayfreq = I915_READ(PXVFREQ_BASE + i * 4);
1008                 seq_printf(m, "P%02dVIDFREQ: 0x%08x (VID: %d)\n", i, delayfreq,
1009                            (delayfreq & PXVFREQ_PX_MASK) >> PXVFREQ_PX_SHIFT);
1010         }
1011
1012         mutex_unlock(&dev->struct_mutex);
1013
1014         return 0;
1015 }
1016
1017 static inline int MAP_TO_MV(int map)
1018 {
1019         return 1250 - (map * 25);
1020 }
1021
1022 static int i915_inttoext_table(struct seq_file *m, void *unused)
1023 {
1024         struct drm_info_node *node = (struct drm_info_node *) m->private;
1025         struct drm_device *dev = node->minor->dev;
1026         drm_i915_private_t *dev_priv = dev->dev_private;
1027         u32 inttoext;
1028         int ret, i;
1029
1030         ret = mutex_lock_interruptible(&dev->struct_mutex);
1031         if (ret)
1032                 return ret;
1033
1034         for (i = 1; i <= 32; i++) {
1035                 inttoext = I915_READ(INTTOEXT_BASE_ILK + i * 4);
1036                 seq_printf(m, "INTTOEXT%02d: 0x%08x\n", i, inttoext);
1037         }
1038
1039         mutex_unlock(&dev->struct_mutex);
1040
1041         return 0;
1042 }
1043
1044 static int ironlake_drpc_info(struct seq_file *m)
1045 {
1046         struct drm_info_node *node = (struct drm_info_node *) m->private;
1047         struct drm_device *dev = node->minor->dev;
1048         drm_i915_private_t *dev_priv = dev->dev_private;
1049         u32 rgvmodectl, rstdbyctl;
1050         u16 crstandvid;
1051         int ret;
1052
1053         ret = mutex_lock_interruptible(&dev->struct_mutex);
1054         if (ret)
1055                 return ret;
1056
1057         rgvmodectl = I915_READ(MEMMODECTL);
1058         rstdbyctl = I915_READ(RSTDBYCTL);
1059         crstandvid = I915_READ16(CRSTANDVID);
1060
1061         mutex_unlock(&dev->struct_mutex);
1062
1063         seq_printf(m, "HD boost: %s\n", (rgvmodectl & MEMMODE_BOOST_EN) ?
1064                    "yes" : "no");
1065         seq_printf(m, "Boost freq: %d\n",
1066                    (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
1067                    MEMMODE_BOOST_FREQ_SHIFT);
1068         seq_printf(m, "HW control enabled: %s\n",
1069                    rgvmodectl & MEMMODE_HWIDLE_EN ? "yes" : "no");
1070         seq_printf(m, "SW control enabled: %s\n",
1071                    rgvmodectl & MEMMODE_SWMODE_EN ? "yes" : "no");
1072         seq_printf(m, "Gated voltage change: %s\n",
1073                    rgvmodectl & MEMMODE_RCLK_GATE ? "yes" : "no");
1074         seq_printf(m, "Starting frequency: P%d\n",
1075                    (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
1076         seq_printf(m, "Max P-state: P%d\n",
1077                    (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
1078         seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
1079         seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
1080         seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
1081         seq_printf(m, "Render standby enabled: %s\n",
1082                    (rstdbyctl & RCX_SW_EXIT) ? "no" : "yes");
1083         seq_puts(m, "Current RS state: ");
1084         switch (rstdbyctl & RSX_STATUS_MASK) {
1085         case RSX_STATUS_ON:
1086                 seq_puts(m, "on\n");
1087                 break;
1088         case RSX_STATUS_RC1:
1089                 seq_puts(m, "RC1\n");
1090                 break;
1091         case RSX_STATUS_RC1E:
1092                 seq_puts(m, "RC1E\n");
1093                 break;
1094         case RSX_STATUS_RS1:
1095                 seq_puts(m, "RS1\n");
1096                 break;
1097         case RSX_STATUS_RS2:
1098                 seq_puts(m, "RS2 (RC6)\n");
1099                 break;
1100         case RSX_STATUS_RS3:
1101                 seq_puts(m, "RC3 (RC6+)\n");
1102                 break;
1103         default:
1104                 seq_puts(m, "unknown\n");
1105                 break;
1106         }
1107
1108         return 0;
1109 }
1110
1111 static int gen6_drpc_info(struct seq_file *m)
1112 {
1113
1114         struct drm_info_node *node = (struct drm_info_node *) m->private;
1115         struct drm_device *dev = node->minor->dev;
1116         struct drm_i915_private *dev_priv = dev->dev_private;
1117         u32 rpmodectl1, gt_core_status, rcctl1, rc6vids = 0;
1118         unsigned forcewake_count;
1119         int count = 0, ret;
1120
1121         ret = mutex_lock_interruptible(&dev->struct_mutex);
1122         if (ret)
1123                 return ret;
1124
1125         spin_lock_irq(&dev_priv->uncore.lock);
1126         forcewake_count = dev_priv->uncore.forcewake_count;
1127         spin_unlock_irq(&dev_priv->uncore.lock);
1128
1129         if (forcewake_count) {
1130                 seq_puts(m, "RC information inaccurate because somebody "
1131                             "holds a forcewake reference \n");
1132         } else {
1133                 /* NB: we cannot use forcewake, else we read the wrong values */
1134                 while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
1135                         udelay(10);
1136                 seq_printf(m, "RC information accurate: %s\n", yesno(count < 51));
1137         }
1138
1139         gt_core_status = readl(dev_priv->regs + GEN6_GT_CORE_STATUS);
1140         trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true);
1141
1142         rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
1143         rcctl1 = I915_READ(GEN6_RC_CONTROL);
1144         mutex_unlock(&dev->struct_mutex);
1145         mutex_lock(&dev_priv->rps.hw_lock);
1146         sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, &rc6vids);
1147         mutex_unlock(&dev_priv->rps.hw_lock);
1148
1149         seq_printf(m, "Video Turbo Mode: %s\n",
1150                    yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
1151         seq_printf(m, "HW control enabled: %s\n",
1152                    yesno(rpmodectl1 & GEN6_RP_ENABLE));
1153         seq_printf(m, "SW control enabled: %s\n",
1154                    yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
1155                           GEN6_RP_MEDIA_SW_MODE));
1156         seq_printf(m, "RC1e Enabled: %s\n",
1157                    yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
1158         seq_printf(m, "RC6 Enabled: %s\n",
1159                    yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
1160         seq_printf(m, "Deep RC6 Enabled: %s\n",
1161                    yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
1162         seq_printf(m, "Deepest RC6 Enabled: %s\n",
1163                    yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
1164         seq_puts(m, "Current RC state: ");
1165         switch (gt_core_status & GEN6_RCn_MASK) {
1166         case GEN6_RC0:
1167                 if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
1168                         seq_puts(m, "Core Power Down\n");
1169                 else
1170                         seq_puts(m, "on\n");
1171                 break;
1172         case GEN6_RC3:
1173                 seq_puts(m, "RC3\n");
1174                 break;
1175         case GEN6_RC6:
1176                 seq_puts(m, "RC6\n");
1177                 break;
1178         case GEN6_RC7:
1179                 seq_puts(m, "RC7\n");
1180                 break;
1181         default:
1182                 seq_puts(m, "Unknown\n");
1183                 break;
1184         }
1185
1186         seq_printf(m, "Core Power Down: %s\n",
1187                    yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
1188
1189         /* Not exactly sure what this is */
1190         seq_printf(m, "RC6 \"Locked to RPn\" residency since boot: %u\n",
1191                    I915_READ(GEN6_GT_GFX_RC6_LOCKED));
1192         seq_printf(m, "RC6 residency since boot: %u\n",
1193                    I915_READ(GEN6_GT_GFX_RC6));
1194         seq_printf(m, "RC6+ residency since boot: %u\n",
1195                    I915_READ(GEN6_GT_GFX_RC6p));
1196         seq_printf(m, "RC6++ residency since boot: %u\n",
1197                    I915_READ(GEN6_GT_GFX_RC6pp));
1198
1199         seq_printf(m, "RC6   voltage: %dmV\n",
1200                    GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
1201         seq_printf(m, "RC6+  voltage: %dmV\n",
1202                    GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
1203         seq_printf(m, "RC6++ voltage: %dmV\n",
1204                    GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
1205         return 0;
1206 }
1207
1208 static int i915_drpc_info(struct seq_file *m, void *unused)
1209 {
1210         struct drm_info_node *node = (struct drm_info_node *) m->private;
1211         struct drm_device *dev = node->minor->dev;
1212
1213         if (IS_GEN6(dev) || IS_GEN7(dev))
1214                 return gen6_drpc_info(m);
1215         else
1216                 return ironlake_drpc_info(m);
1217 }
1218
1219 static int i915_fbc_status(struct seq_file *m, void *unused)
1220 {
1221         struct drm_info_node *node = (struct drm_info_node *) m->private;
1222         struct drm_device *dev = node->minor->dev;
1223         drm_i915_private_t *dev_priv = dev->dev_private;
1224
1225         if (!I915_HAS_FBC(dev)) {
1226                 seq_puts(m, "FBC unsupported on this chipset\n");
1227                 return 0;
1228         }
1229
1230         if (intel_fbc_enabled(dev)) {
1231                 seq_puts(m, "FBC enabled\n");
1232         } else {
1233                 seq_puts(m, "FBC disabled: ");
1234                 switch (dev_priv->fbc.no_fbc_reason) {
1235                 case FBC_OK:
1236                         seq_puts(m, "FBC actived, but currently disabled in hardware");
1237                         break;
1238                 case FBC_UNSUPPORTED:
1239                         seq_puts(m, "unsupported by this chipset");
1240                         break;
1241                 case FBC_NO_OUTPUT:
1242                         seq_puts(m, "no outputs");
1243                         break;
1244                 case FBC_STOLEN_TOO_SMALL:
1245                         seq_puts(m, "not enough stolen memory");
1246                         break;
1247                 case FBC_UNSUPPORTED_MODE:
1248                         seq_puts(m, "mode not supported");
1249                         break;
1250                 case FBC_MODE_TOO_LARGE:
1251                         seq_puts(m, "mode too large");
1252                         break;
1253                 case FBC_BAD_PLANE:
1254                         seq_puts(m, "FBC unsupported on plane");
1255                         break;
1256                 case FBC_NOT_TILED:
1257                         seq_puts(m, "scanout buffer not tiled");
1258                         break;
1259                 case FBC_MULTIPLE_PIPES:
1260                         seq_puts(m, "multiple pipes are enabled");
1261                         break;
1262                 case FBC_MODULE_PARAM:
1263                         seq_puts(m, "disabled per module param (default off)");
1264                         break;
1265                 case FBC_CHIP_DEFAULT:
1266                         seq_puts(m, "disabled per chip default");
1267                         break;
1268                 default:
1269                         seq_puts(m, "unknown reason");
1270                 }
1271                 seq_putc(m, '\n');
1272         }
1273         return 0;
1274 }
1275
1276 static int i915_ips_status(struct seq_file *m, void *unused)
1277 {
1278         struct drm_info_node *node = (struct drm_info_node *) m->private;
1279         struct drm_device *dev = node->minor->dev;
1280         struct drm_i915_private *dev_priv = dev->dev_private;
1281
1282         if (!HAS_IPS(dev)) {
1283                 seq_puts(m, "not supported\n");
1284                 return 0;
1285         }
1286
1287         if (I915_READ(IPS_CTL) & IPS_ENABLE)
1288                 seq_puts(m, "enabled\n");
1289         else
1290                 seq_puts(m, "disabled\n");
1291
1292         return 0;
1293 }
1294
1295 static int i915_sr_status(struct seq_file *m, void *unused)
1296 {
1297         struct drm_info_node *node = (struct drm_info_node *) m->private;
1298         struct drm_device *dev = node->minor->dev;
1299         drm_i915_private_t *dev_priv = dev->dev_private;
1300         bool sr_enabled = false;
1301
1302         if (HAS_PCH_SPLIT(dev))
1303                 sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
1304         else if (IS_CRESTLINE(dev) || IS_I945G(dev) || IS_I945GM(dev))
1305                 sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
1306         else if (IS_I915GM(dev))
1307                 sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
1308         else if (IS_PINEVIEW(dev))
1309                 sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
1310
1311         seq_printf(m, "self-refresh: %s\n",
1312                    sr_enabled ? "enabled" : "disabled");
1313
1314         return 0;
1315 }
1316
1317 static int i915_emon_status(struct seq_file *m, void *unused)
1318 {
1319         struct drm_info_node *node = (struct drm_info_node *) m->private;
1320         struct drm_device *dev = node->minor->dev;
1321         drm_i915_private_t *dev_priv = dev->dev_private;
1322         unsigned long temp, chipset, gfx;
1323         int ret;
1324
1325         if (!IS_GEN5(dev))
1326                 return -ENODEV;
1327
1328         ret = mutex_lock_interruptible(&dev->struct_mutex);
1329         if (ret)
1330                 return ret;
1331
1332         temp = i915_mch_val(dev_priv);
1333         chipset = i915_chipset_val(dev_priv);
1334         gfx = i915_gfx_val(dev_priv);
1335         mutex_unlock(&dev->struct_mutex);
1336
1337         seq_printf(m, "GMCH temp: %ld\n", temp);
1338         seq_printf(m, "Chipset power: %ld\n", chipset);
1339         seq_printf(m, "GFX power: %ld\n", gfx);
1340         seq_printf(m, "Total power: %ld\n", chipset + gfx);
1341
1342         return 0;
1343 }
1344
1345 static int i915_ring_freq_table(struct seq_file *m, void *unused)
1346 {
1347         struct drm_info_node *node = (struct drm_info_node *) m->private;
1348         struct drm_device *dev = node->minor->dev;
1349         drm_i915_private_t *dev_priv = dev->dev_private;
1350         int ret;
1351         int gpu_freq, ia_freq;
1352
1353         if (!(IS_GEN6(dev) || IS_GEN7(dev))) {
1354                 seq_puts(m, "unsupported on this chipset\n");
1355                 return 0;
1356         }
1357
1358         flush_delayed_work(&dev_priv->rps.delayed_resume_work);
1359
1360         ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
1361         if (ret)
1362                 return ret;
1363
1364         seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
1365
1366         for (gpu_freq = dev_priv->rps.min_delay;
1367              gpu_freq <= dev_priv->rps.max_delay;
1368              gpu_freq++) {
1369                 ia_freq = gpu_freq;
1370                 sandybridge_pcode_read(dev_priv,
1371                                        GEN6_PCODE_READ_MIN_FREQ_TABLE,
1372                                        &ia_freq);
1373                 seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
1374                            gpu_freq * GT_FREQUENCY_MULTIPLIER,
1375                            ((ia_freq >> 0) & 0xff) * 100,
1376                            ((ia_freq >> 8) & 0xff) * 100);
1377         }
1378
1379         mutex_unlock(&dev_priv->rps.hw_lock);
1380
1381         return 0;
1382 }
1383
1384 static int i915_gfxec(struct seq_file *m, void *unused)
1385 {
1386         struct drm_info_node *node = (struct drm_info_node *) m->private;
1387         struct drm_device *dev = node->minor->dev;
1388         drm_i915_private_t *dev_priv = dev->dev_private;
1389         int ret;
1390
1391         ret = mutex_lock_interruptible(&dev->struct_mutex);
1392         if (ret)
1393                 return ret;
1394
1395         seq_printf(m, "GFXEC: %ld\n", (unsigned long)I915_READ(0x112f4));
1396
1397         mutex_unlock(&dev->struct_mutex);
1398
1399         return 0;
1400 }
1401
1402 static int i915_opregion(struct seq_file *m, void *unused)
1403 {
1404         struct drm_info_node *node = (struct drm_info_node *) m->private;
1405         struct drm_device *dev = node->minor->dev;
1406         drm_i915_private_t *dev_priv = dev->dev_private;
1407         struct intel_opregion *opregion = &dev_priv->opregion;
1408         void *data = kmalloc(OPREGION_SIZE, GFP_KERNEL);
1409         int ret;
1410
1411         if (data == NULL)
1412                 return -ENOMEM;
1413
1414         ret = mutex_lock_interruptible(&dev->struct_mutex);
1415         if (ret)
1416                 goto out;
1417
1418         if (opregion->header) {
1419                 memcpy_fromio(data, opregion->header, OPREGION_SIZE);
1420                 seq_write(m, data, OPREGION_SIZE);
1421         }
1422
1423         mutex_unlock(&dev->struct_mutex);
1424
1425 out:
1426         kfree(data);
1427         return 0;
1428 }
1429
1430 static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
1431 {
1432         struct drm_info_node *node = (struct drm_info_node *) m->private;
1433         struct drm_device *dev = node->minor->dev;
1434         struct intel_fbdev *ifbdev = NULL;
1435         struct intel_framebuffer *fb;
1436
1437 #ifdef CONFIG_DRM_I915_FBDEV
1438         struct drm_i915_private *dev_priv = dev->dev_private;
1439         int ret = mutex_lock_interruptible(&dev->mode_config.mutex);
1440         if (ret)
1441                 return ret;
1442
1443         ifbdev = dev_priv->fbdev;
1444         fb = to_intel_framebuffer(ifbdev->helper.fb);
1445
1446         seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, refcount %d, obj ",
1447                    fb->base.width,
1448                    fb->base.height,
1449                    fb->base.depth,
1450                    fb->base.bits_per_pixel,
1451                    atomic_read(&fb->base.refcount.refcount));
1452         describe_obj(m, fb->obj);
1453         seq_putc(m, '\n');
1454         mutex_unlock(&dev->mode_config.mutex);
1455 #endif
1456
1457         mutex_lock(&dev->mode_config.fb_lock);
1458         list_for_each_entry(fb, &dev->mode_config.fb_list, base.head) {
1459                 if (ifbdev && &fb->base == ifbdev->helper.fb)
1460                         continue;
1461
1462                 seq_printf(m, "user size: %d x %d, depth %d, %d bpp, refcount %d, obj ",
1463                            fb->base.width,
1464                            fb->base.height,
1465                            fb->base.depth,
1466                            fb->base.bits_per_pixel,
1467                            atomic_read(&fb->base.refcount.refcount));
1468                 describe_obj(m, fb->obj);
1469                 seq_putc(m, '\n');
1470         }
1471         mutex_unlock(&dev->mode_config.fb_lock);
1472
1473         return 0;
1474 }
1475
1476 static int i915_context_status(struct seq_file *m, void *unused)
1477 {
1478         struct drm_info_node *node = (struct drm_info_node *) m->private;
1479         struct drm_device *dev = node->minor->dev;
1480         drm_i915_private_t *dev_priv = dev->dev_private;
1481         struct intel_ring_buffer *ring;
1482         struct i915_hw_context *ctx;
1483         int ret, i;
1484
1485         ret = mutex_lock_interruptible(&dev->mode_config.mutex);
1486         if (ret)
1487                 return ret;
1488
1489         if (dev_priv->ips.pwrctx) {
1490                 seq_puts(m, "power context ");
1491                 describe_obj(m, dev_priv->ips.pwrctx);
1492                 seq_putc(m, '\n');
1493         }
1494
1495         if (dev_priv->ips.renderctx) {
1496                 seq_puts(m, "render context ");
1497                 describe_obj(m, dev_priv->ips.renderctx);
1498                 seq_putc(m, '\n');
1499         }
1500
1501         list_for_each_entry(ctx, &dev_priv->context_list, link) {
1502                 seq_puts(m, "HW context ");
1503                 describe_ctx(m, ctx);
1504                 for_each_ring(ring, dev_priv, i)
1505                         if (ring->default_context == ctx)
1506                                 seq_printf(m, "(default context %s) ", ring->name);
1507
1508                 describe_obj(m, ctx->obj);
1509                 seq_putc(m, '\n');
1510         }
1511
1512         mutex_unlock(&dev->mode_config.mutex);
1513
1514         return 0;
1515 }
1516
1517 static int i915_gen6_forcewake_count_info(struct seq_file *m, void *data)
1518 {
1519         struct drm_info_node *node = (struct drm_info_node *) m->private;
1520         struct drm_device *dev = node->minor->dev;
1521         struct drm_i915_private *dev_priv = dev->dev_private;
1522         unsigned forcewake_count;
1523
1524         spin_lock_irq(&dev_priv->uncore.lock);
1525         forcewake_count = dev_priv->uncore.forcewake_count;
1526         spin_unlock_irq(&dev_priv->uncore.lock);
1527
1528         seq_printf(m, "forcewake count = %u\n", forcewake_count);
1529
1530         return 0;
1531 }
1532
1533 static const char *swizzle_string(unsigned swizzle)
1534 {
1535         switch (swizzle) {
1536         case I915_BIT_6_SWIZZLE_NONE:
1537                 return "none";
1538         case I915_BIT_6_SWIZZLE_9:
1539                 return "bit9";
1540         case I915_BIT_6_SWIZZLE_9_10:
1541                 return "bit9/bit10";
1542         case I915_BIT_6_SWIZZLE_9_11:
1543                 return "bit9/bit11";
1544         case I915_BIT_6_SWIZZLE_9_10_11:
1545                 return "bit9/bit10/bit11";
1546         case I915_BIT_6_SWIZZLE_9_17:
1547                 return "bit9/bit17";
1548         case I915_BIT_6_SWIZZLE_9_10_17:
1549                 return "bit9/bit10/bit17";
1550         case I915_BIT_6_SWIZZLE_UNKNOWN:
1551                 return "unknown";
1552         }
1553
1554         return "bug";
1555 }
1556
1557 static int i915_swizzle_info(struct seq_file *m, void *data)
1558 {
1559         struct drm_info_node *node = (struct drm_info_node *) m->private;
1560         struct drm_device *dev = node->minor->dev;
1561         struct drm_i915_private *dev_priv = dev->dev_private;
1562         int ret;
1563
1564         ret = mutex_lock_interruptible(&dev->struct_mutex);
1565         if (ret)
1566                 return ret;
1567
1568         seq_printf(m, "bit6 swizzle for X-tiling = %s\n",
1569                    swizzle_string(dev_priv->mm.bit_6_swizzle_x));
1570         seq_printf(m, "bit6 swizzle for Y-tiling = %s\n",
1571                    swizzle_string(dev_priv->mm.bit_6_swizzle_y));
1572
1573         if (IS_GEN3(dev) || IS_GEN4(dev)) {
1574                 seq_printf(m, "DDC = 0x%08x\n",
1575                            I915_READ(DCC));
1576                 seq_printf(m, "C0DRB3 = 0x%04x\n",
1577                            I915_READ16(C0DRB3));
1578                 seq_printf(m, "C1DRB3 = 0x%04x\n",
1579                            I915_READ16(C1DRB3));
1580         } else if (IS_GEN6(dev) || IS_GEN7(dev)) {
1581                 seq_printf(m, "MAD_DIMM_C0 = 0x%08x\n",
1582                            I915_READ(MAD_DIMM_C0));
1583                 seq_printf(m, "MAD_DIMM_C1 = 0x%08x\n",
1584                            I915_READ(MAD_DIMM_C1));
1585                 seq_printf(m, "MAD_DIMM_C2 = 0x%08x\n",
1586                            I915_READ(MAD_DIMM_C2));
1587                 seq_printf(m, "TILECTL = 0x%08x\n",
1588                            I915_READ(TILECTL));
1589                 seq_printf(m, "ARB_MODE = 0x%08x\n",
1590                            I915_READ(ARB_MODE));
1591                 seq_printf(m, "DISP_ARB_CTL = 0x%08x\n",
1592                            I915_READ(DISP_ARB_CTL));
1593         }
1594         mutex_unlock(&dev->struct_mutex);
1595
1596         return 0;
1597 }
1598
1599 static int i915_ppgtt_info(struct seq_file *m, void *data)
1600 {
1601         struct drm_info_node *node = (struct drm_info_node *) m->private;
1602         struct drm_device *dev = node->minor->dev;
1603         struct drm_i915_private *dev_priv = dev->dev_private;
1604         struct intel_ring_buffer *ring;
1605         int i, ret;
1606
1607
1608         ret = mutex_lock_interruptible(&dev->struct_mutex);
1609         if (ret)
1610                 return ret;
1611         if (INTEL_INFO(dev)->gen == 6)
1612                 seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(GFX_MODE));
1613
1614         for_each_ring(ring, dev_priv, i) {
1615                 seq_printf(m, "%s\n", ring->name);
1616                 if (INTEL_INFO(dev)->gen == 7)
1617                         seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(RING_MODE_GEN7(ring)));
1618                 seq_printf(m, "PP_DIR_BASE: 0x%08x\n", I915_READ(RING_PP_DIR_BASE(ring)));
1619                 seq_printf(m, "PP_DIR_BASE_READ: 0x%08x\n", I915_READ(RING_PP_DIR_BASE_READ(ring)));
1620                 seq_printf(m, "PP_DIR_DCLV: 0x%08x\n", I915_READ(RING_PP_DIR_DCLV(ring)));
1621         }
1622         if (dev_priv->mm.aliasing_ppgtt) {
1623                 struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
1624
1625                 seq_puts(m, "aliasing PPGTT:\n");
1626                 seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd_offset);
1627         }
1628         seq_printf(m, "ECOCHK: 0x%08x\n", I915_READ(GAM_ECOCHK));
1629         mutex_unlock(&dev->struct_mutex);
1630
1631         return 0;
1632 }
1633
1634 static int i915_dpio_info(struct seq_file *m, void *data)
1635 {
1636         struct drm_info_node *node = (struct drm_info_node *) m->private;
1637         struct drm_device *dev = node->minor->dev;
1638         struct drm_i915_private *dev_priv = dev->dev_private;
1639         int ret;
1640
1641
1642         if (!IS_VALLEYVIEW(dev)) {
1643                 seq_puts(m, "unsupported\n");
1644                 return 0;
1645         }
1646
1647         ret = mutex_lock_interruptible(&dev_priv->dpio_lock);
1648         if (ret)
1649                 return ret;
1650
1651         seq_printf(m, "DPIO_CTL: 0x%08x\n", I915_READ(DPIO_CTL));
1652
1653         seq_printf(m, "DPIO_DIV_A: 0x%08x\n",
1654                    vlv_dpio_read(dev_priv, PIPE_A, _DPIO_DIV_A));
1655         seq_printf(m, "DPIO_DIV_B: 0x%08x\n",
1656                    vlv_dpio_read(dev_priv, PIPE_A, _DPIO_DIV_B));
1657
1658         seq_printf(m, "DPIO_REFSFR_A: 0x%08x\n",
1659                    vlv_dpio_read(dev_priv, PIPE_A, _DPIO_REFSFR_A));
1660         seq_printf(m, "DPIO_REFSFR_B: 0x%08x\n",
1661                    vlv_dpio_read(dev_priv, PIPE_A, _DPIO_REFSFR_B));
1662
1663         seq_printf(m, "DPIO_CORE_CLK_A: 0x%08x\n",
1664                    vlv_dpio_read(dev_priv, PIPE_A, _DPIO_CORE_CLK_A));
1665         seq_printf(m, "DPIO_CORE_CLK_B: 0x%08x\n",
1666                    vlv_dpio_read(dev_priv, PIPE_A, _DPIO_CORE_CLK_B));
1667
1668         seq_printf(m, "DPIO_LPF_COEFF_A: 0x%08x\n",
1669                    vlv_dpio_read(dev_priv, PIPE_A, _DPIO_LPF_COEFF_A));
1670         seq_printf(m, "DPIO_LPF_COEFF_B: 0x%08x\n",
1671                    vlv_dpio_read(dev_priv, PIPE_A, _DPIO_LPF_COEFF_B));
1672
1673         seq_printf(m, "DPIO_FASTCLK_DISABLE: 0x%08x\n",
1674                    vlv_dpio_read(dev_priv, PIPE_A, DPIO_FASTCLK_DISABLE));
1675
1676         mutex_unlock(&dev_priv->dpio_lock);
1677
1678         return 0;
1679 }
1680
1681 static int i915_llc(struct seq_file *m, void *data)
1682 {
1683         struct drm_info_node *node = (struct drm_info_node *) m->private;
1684         struct drm_device *dev = node->minor->dev;
1685         struct drm_i915_private *dev_priv = dev->dev_private;
1686
1687         /* Size calculation for LLC is a bit of a pain. Ignore for now. */
1688         seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(dev)));
1689         seq_printf(m, "eLLC: %zuMB\n", dev_priv->ellc_size);
1690
1691         return 0;
1692 }
1693
1694 static int i915_edp_psr_status(struct seq_file *m, void *data)
1695 {
1696         struct drm_info_node *node = m->private;
1697         struct drm_device *dev = node->minor->dev;
1698         struct drm_i915_private *dev_priv = dev->dev_private;
1699         u32 psrperf = 0;
1700         bool enabled = false;
1701
1702         seq_printf(m, "Sink_Support: %s\n", yesno(dev_priv->psr.sink_support));
1703         seq_printf(m, "Source_OK: %s\n", yesno(dev_priv->psr.source_ok));
1704
1705         enabled = HAS_PSR(dev) &&
1706                 I915_READ(EDP_PSR_CTL(dev)) & EDP_PSR_ENABLE;
1707         seq_printf(m, "Enabled: %s\n", yesno(enabled));
1708
1709         if (HAS_PSR(dev))
1710                 psrperf = I915_READ(EDP_PSR_PERF_CNT(dev)) &
1711                         EDP_PSR_PERF_CNT_MASK;
1712         seq_printf(m, "Performance_Counter: %u\n", psrperf);
1713
1714         return 0;
1715 }
1716
1717 static int i915_energy_uJ(struct seq_file *m, void *data)
1718 {
1719         struct drm_info_node *node = m->private;
1720         struct drm_device *dev = node->minor->dev;
1721         struct drm_i915_private *dev_priv = dev->dev_private;
1722         u64 power;
1723         u32 units;
1724
1725         if (INTEL_INFO(dev)->gen < 6)
1726                 return -ENODEV;
1727
1728         rdmsrl(MSR_RAPL_POWER_UNIT, power);
1729         power = (power & 0x1f00) >> 8;
1730         units = 1000000 / (1 << power); /* convert to uJ */
1731         power = I915_READ(MCH_SECP_NRG_STTS);
1732         power *= units;
1733
1734         seq_printf(m, "%llu", (long long unsigned)power);
1735
1736         return 0;
1737 }
1738
1739 static int i915_pc8_status(struct seq_file *m, void *unused)
1740 {
1741         struct drm_info_node *node = (struct drm_info_node *) m->private;
1742         struct drm_device *dev = node->minor->dev;
1743         struct drm_i915_private *dev_priv = dev->dev_private;
1744
1745         if (!IS_HASWELL(dev)) {
1746                 seq_puts(m, "not supported\n");
1747                 return 0;
1748         }
1749
1750         mutex_lock(&dev_priv->pc8.lock);
1751         seq_printf(m, "Requirements met: %s\n",
1752                    yesno(dev_priv->pc8.requirements_met));
1753         seq_printf(m, "GPU idle: %s\n", yesno(dev_priv->pc8.gpu_idle));
1754         seq_printf(m, "Disable count: %d\n", dev_priv->pc8.disable_count);
1755         seq_printf(m, "IRQs disabled: %s\n",
1756                    yesno(dev_priv->pc8.irqs_disabled));
1757         seq_printf(m, "Enabled: %s\n", yesno(dev_priv->pc8.enabled));
1758         mutex_unlock(&dev_priv->pc8.lock);
1759
1760         return 0;
1761 }
1762
1763 struct pipe_crc_info {
1764         const char *name;
1765         struct drm_device *dev;
1766         enum pipe pipe;
1767 };
1768
1769 static int i915_pipe_crc_open(struct inode *inode, struct file *filep)
1770 {
1771         struct pipe_crc_info *info = inode->i_private;
1772         struct drm_i915_private *dev_priv = info->dev->dev_private;
1773         struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
1774
1775         if (!atomic_dec_and_test(&pipe_crc->available)) {
1776                 atomic_inc(&pipe_crc->available);
1777                 return -EBUSY; /* already open */
1778         }
1779
1780         filep->private_data = inode->i_private;
1781
1782         return 0;
1783 }
1784
1785 static int i915_pipe_crc_release(struct inode *inode, struct file *filep)
1786 {
1787         struct pipe_crc_info *info = inode->i_private;
1788         struct drm_i915_private *dev_priv = info->dev->dev_private;
1789         struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
1790
1791         atomic_inc(&pipe_crc->available); /* release the device */
1792
1793         return 0;
1794 }
1795
1796 /* (6 fields, 8 chars each, space separated (5) + '\n') */
1797 #define PIPE_CRC_LINE_LEN       (6 * 8 + 5 + 1)
1798 /* account for \'0' */
1799 #define PIPE_CRC_BUFFER_LEN     (PIPE_CRC_LINE_LEN + 1)
1800
1801 static int pipe_crc_data_count(struct intel_pipe_crc *pipe_crc)
1802 {
1803         int head, tail;
1804
1805         head = atomic_read(&pipe_crc->head);
1806         tail = atomic_read(&pipe_crc->tail);
1807
1808         return CIRC_CNT(head, tail, INTEL_PIPE_CRC_ENTRIES_NR);
1809 }
1810
1811 static ssize_t
1812 i915_pipe_crc_read(struct file *filep, char __user *user_buf, size_t count,
1813                    loff_t *pos)
1814 {
1815         struct pipe_crc_info *info = filep->private_data;
1816         struct drm_device *dev = info->dev;
1817         struct drm_i915_private *dev_priv = dev->dev_private;
1818         struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[info->pipe];
1819         char buf[PIPE_CRC_BUFFER_LEN];
1820         int head, tail, n_entries, n;
1821         ssize_t bytes_read;
1822
1823         /*
1824          * Don't allow user space to provide buffers not big enough to hold
1825          * a line of data.
1826          */
1827         if (count < PIPE_CRC_LINE_LEN)
1828                 return -EINVAL;
1829
1830         if (pipe_crc->source == INTEL_PIPE_CRC_SOURCE_NONE)
1831                 return 0;
1832
1833         /* nothing to read */
1834         while (pipe_crc_data_count(pipe_crc) == 0) {
1835                 if (filep->f_flags & O_NONBLOCK)
1836                         return -EAGAIN;
1837
1838                 if (wait_event_interruptible(pipe_crc->wq,
1839                                              pipe_crc_data_count(pipe_crc)))
1840                          return -ERESTARTSYS;
1841         }
1842
1843         /* We now have one or more entries to read */
1844         head = atomic_read(&pipe_crc->head);
1845         tail = atomic_read(&pipe_crc->tail);
1846         n_entries = min((size_t)CIRC_CNT(head, tail, INTEL_PIPE_CRC_ENTRIES_NR),
1847                         count / PIPE_CRC_LINE_LEN);
1848         bytes_read = 0;
1849         n = 0;
1850         do {
1851                 struct intel_pipe_crc_entry *entry = &pipe_crc->entries[tail];
1852                 int ret;
1853
1854                 bytes_read += snprintf(buf, PIPE_CRC_BUFFER_LEN,
1855                                        "%8u %8x %8x %8x %8x %8x\n",
1856                                        entry->frame, entry->crc[0],
1857                                        entry->crc[1], entry->crc[2],
1858                                        entry->crc[3], entry->crc[4]);
1859
1860                 ret = copy_to_user(user_buf + n * PIPE_CRC_LINE_LEN,
1861                                    buf, PIPE_CRC_LINE_LEN);
1862                 if (ret == PIPE_CRC_LINE_LEN)
1863                         return -EFAULT;
1864
1865                 BUILD_BUG_ON_NOT_POWER_OF_2(INTEL_PIPE_CRC_ENTRIES_NR);
1866                 tail = (tail + 1) & (INTEL_PIPE_CRC_ENTRIES_NR - 1);
1867                 atomic_set(&pipe_crc->tail, tail);
1868                 n++;
1869         } while (--n_entries);
1870
1871         return bytes_read;
1872 }
1873
1874 static const struct file_operations i915_pipe_crc_fops = {
1875         .owner = THIS_MODULE,
1876         .open = i915_pipe_crc_open,
1877         .read = i915_pipe_crc_read,
1878         .release = i915_pipe_crc_release,
1879 };
1880
1881 static struct pipe_crc_info i915_pipe_crc_data[I915_MAX_PIPES] = {
1882         {
1883                 .name = "i915_pipe_A_crc",
1884                 .pipe = PIPE_A,
1885         },
1886         {
1887                 .name = "i915_pipe_B_crc",
1888                 .pipe = PIPE_B,
1889         },
1890         {
1891                 .name = "i915_pipe_C_crc",
1892                 .pipe = PIPE_C,
1893         },
1894 };
1895
1896 static int i915_pipe_crc_create(struct dentry *root, struct drm_minor *minor,
1897                                 enum pipe pipe)
1898 {
1899         struct drm_device *dev = minor->dev;
1900         struct dentry *ent;
1901         struct pipe_crc_info *info = &i915_pipe_crc_data[pipe];
1902
1903         info->dev = dev;
1904         ent = debugfs_create_file(info->name, S_IRUGO, root, info,
1905                                   &i915_pipe_crc_fops);
1906         if (IS_ERR(ent))
1907                 return PTR_ERR(ent);
1908
1909         return drm_add_fake_info_node(minor, ent, info);
1910 }
1911
1912 static const char * const pipe_crc_sources[] = {
1913         "none",
1914         "plane1",
1915         "plane2",
1916         "pf",
1917         "pipe",
1918         "TV",
1919         "DP-B",
1920         "DP-C",
1921         "DP-D",
1922 };
1923
1924 static const char *pipe_crc_source_name(enum intel_pipe_crc_source source)
1925 {
1926         BUILD_BUG_ON(ARRAY_SIZE(pipe_crc_sources) != INTEL_PIPE_CRC_SOURCE_MAX);
1927         return pipe_crc_sources[source];
1928 }
1929
1930 static int display_crc_ctl_show(struct seq_file *m, void *data)
1931 {
1932         struct drm_device *dev = m->private;
1933         struct drm_i915_private *dev_priv = dev->dev_private;
1934         int i;
1935
1936         for (i = 0; i < I915_MAX_PIPES; i++)
1937                 seq_printf(m, "%c %s\n", pipe_name(i),
1938                            pipe_crc_source_name(dev_priv->pipe_crc[i].source));
1939
1940         return 0;
1941 }
1942
1943 static int display_crc_ctl_open(struct inode *inode, struct file *file)
1944 {
1945         struct drm_device *dev = inode->i_private;
1946
1947         return single_open(file, display_crc_ctl_show, dev);
1948 }
1949
1950 static int i8xx_pipe_crc_ctl_reg(enum intel_pipe_crc_source source,
1951                                  uint32_t *val)
1952 {
1953         switch (source) {
1954         case INTEL_PIPE_CRC_SOURCE_PIPE:
1955                 *val = PIPE_CRC_ENABLE | PIPE_CRC_INCLUDE_BORDER_I8XX;
1956                 break;
1957         case INTEL_PIPE_CRC_SOURCE_NONE:
1958                 *val = 0;
1959                 break;
1960         default:
1961                 return -EINVAL;
1962         }
1963
1964         return 0;
1965 }
1966
1967 static int i9xx_pipe_crc_ctl_reg(struct drm_device *dev,
1968                                  enum intel_pipe_crc_source source,
1969                                  uint32_t *val)
1970 {
1971         switch (source) {
1972         case INTEL_PIPE_CRC_SOURCE_PIPE:
1973                 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_I9XX;
1974                 break;
1975         case INTEL_PIPE_CRC_SOURCE_TV:
1976                 if (!SUPPORTS_TV(dev))
1977                         return -EINVAL;
1978                 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_TV_PRE;
1979                 break;
1980         case INTEL_PIPE_CRC_SOURCE_DP_B:
1981                 if (!IS_G4X(dev))
1982                         return -EINVAL;
1983                 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_B_G4X;
1984                 break;
1985         case INTEL_PIPE_CRC_SOURCE_DP_C:
1986                 if (!IS_G4X(dev))
1987                         return -EINVAL;
1988                 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_C_G4X;
1989                 break;
1990         case INTEL_PIPE_CRC_SOURCE_DP_D:
1991                 if (!IS_G4X(dev))
1992                         return -EINVAL;
1993                 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DP_D_G4X;
1994                 break;
1995         case INTEL_PIPE_CRC_SOURCE_NONE:
1996                 *val = 0;
1997                 break;
1998         default:
1999                 return -EINVAL;
2000         }
2001
2002         return 0;
2003 }
2004
2005 static int ilk_pipe_crc_ctl_reg(enum intel_pipe_crc_source source,
2006                                 uint32_t *val)
2007 {
2008         switch (source) {
2009         case INTEL_PIPE_CRC_SOURCE_PLANE1:
2010                 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_ILK;
2011                 break;
2012         case INTEL_PIPE_CRC_SOURCE_PLANE2:
2013                 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_ILK;
2014                 break;
2015         case INTEL_PIPE_CRC_SOURCE_PIPE:
2016                 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_ILK;
2017                 break;
2018         case INTEL_PIPE_CRC_SOURCE_NONE:
2019                 *val = 0;
2020                 break;
2021         default:
2022                 return -EINVAL;
2023         }
2024
2025         return 0;
2026 }
2027
2028 static int ivb_pipe_crc_ctl_reg(enum intel_pipe_crc_source source,
2029                                 uint32_t *val)
2030 {
2031         switch (source) {
2032         case INTEL_PIPE_CRC_SOURCE_PLANE1:
2033                 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_IVB;
2034                 break;
2035         case INTEL_PIPE_CRC_SOURCE_PLANE2:
2036                 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_IVB;
2037                 break;
2038         case INTEL_PIPE_CRC_SOURCE_PF:
2039                 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PF_IVB;
2040                 break;
2041         case INTEL_PIPE_CRC_SOURCE_NONE:
2042                 *val = 0;
2043                 break;
2044         default:
2045                 return -EINVAL;
2046         }
2047
2048         return 0;
2049 }
2050
2051 static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe,
2052                                enum intel_pipe_crc_source source)
2053 {
2054         struct drm_i915_private *dev_priv = dev->dev_private;
2055         struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];
2056         u32 val;
2057         int ret;
2058
2059         if (IS_VALLEYVIEW(dev))
2060                 return -ENODEV;
2061
2062         if (pipe_crc->source == source)
2063                 return 0;
2064
2065         /* forbid changing the source without going back to 'none' */
2066         if (pipe_crc->source && source)
2067                 return -EINVAL;
2068
2069         if (IS_GEN2(dev))
2070                 ret = i8xx_pipe_crc_ctl_reg(source, &val);
2071         else if (INTEL_INFO(dev)->gen < 5)
2072                 ret = i9xx_pipe_crc_ctl_reg(dev, source, &val);
2073         else if (IS_GEN5(dev) || IS_GEN6(dev))
2074                 ret = ilk_pipe_crc_ctl_reg(source, &val);
2075         else
2076                 ret = ivb_pipe_crc_ctl_reg(source, &val);
2077
2078         if (ret != 0)
2079                 return ret;
2080
2081         /* none -> real source transition */
2082         if (source) {
2083                 DRM_DEBUG_DRIVER("collecting CRCs for pipe %c, %s\n",
2084                                  pipe_name(pipe), pipe_crc_source_name(source));
2085
2086                 pipe_crc->entries = kzalloc(sizeof(*pipe_crc->entries) *
2087                                             INTEL_PIPE_CRC_ENTRIES_NR,
2088                                             GFP_KERNEL);
2089                 if (!pipe_crc->entries)
2090                         return -ENOMEM;
2091
2092                 atomic_set(&pipe_crc->head, 0);
2093                 atomic_set(&pipe_crc->tail, 0);
2094         }
2095
2096         pipe_crc->source = source;
2097
2098         I915_WRITE(PIPE_CRC_CTL(pipe), val);
2099         POSTING_READ(PIPE_CRC_CTL(pipe));
2100
2101         /* real source -> none transition */
2102         if (source == INTEL_PIPE_CRC_SOURCE_NONE) {
2103                 DRM_DEBUG_DRIVER("stopping CRCs for pipe %c\n",
2104                                  pipe_name(pipe));
2105
2106                 intel_wait_for_vblank(dev, pipe);
2107
2108                 kfree(pipe_crc->entries);
2109                 pipe_crc->entries = NULL;
2110         }
2111
2112         return 0;
2113 }
2114
2115 /*
2116  * Parse pipe CRC command strings:
2117  *   command: wsp* object wsp+ name wsp+ source wsp*
2118  *   object: 'pipe'
2119  *   name: (A | B | C)
2120  *   source: (none | plane1 | plane2 | pf)
2121  *   wsp: (#0x20 | #0x9 | #0xA)+
2122  *
2123  * eg.:
2124  *  "pipe A plane1"  ->  Start CRC computations on plane1 of pipe A
2125  *  "pipe A none"    ->  Stop CRC
2126  */
2127 static int display_crc_ctl_tokenize(char *buf, char *words[], int max_words)
2128 {
2129         int n_words = 0;
2130
2131         while (*buf) {
2132                 char *end;
2133
2134                 /* skip leading white space */
2135                 buf = skip_spaces(buf);
2136                 if (!*buf)
2137                         break;  /* end of buffer */
2138
2139                 /* find end of word */
2140                 for (end = buf; *end && !isspace(*end); end++)
2141                         ;
2142
2143                 if (n_words == max_words) {
2144                         DRM_DEBUG_DRIVER("too many words, allowed <= %d\n",
2145                                          max_words);
2146                         return -EINVAL; /* ran out of words[] before bytes */
2147                 }
2148
2149                 if (*end)
2150                         *end++ = '\0';
2151                 words[n_words++] = buf;
2152                 buf = end;
2153         }
2154
2155         return n_words;
2156 }
2157
2158 enum intel_pipe_crc_object {
2159         PIPE_CRC_OBJECT_PIPE,
2160 };
2161
2162 static const char * const pipe_crc_objects[] = {
2163         "pipe",
2164 };
2165
2166 static int
2167 display_crc_ctl_parse_object(const char *buf, enum intel_pipe_crc_object *o)
2168 {
2169         int i;
2170
2171         for (i = 0; i < ARRAY_SIZE(pipe_crc_objects); i++)
2172                 if (!strcmp(buf, pipe_crc_objects[i])) {
2173                         *o = i;
2174                         return 0;
2175                     }
2176
2177         return -EINVAL;
2178 }
2179
2180 static int display_crc_ctl_parse_pipe(const char *buf, enum pipe *pipe)
2181 {
2182         const char name = buf[0];
2183
2184         if (name < 'A' || name >= pipe_name(I915_MAX_PIPES))
2185                 return -EINVAL;
2186
2187         *pipe = name - 'A';
2188
2189         return 0;
2190 }
2191
2192 static int
2193 display_crc_ctl_parse_source(const char *buf, enum intel_pipe_crc_source *s)
2194 {
2195         int i;
2196
2197         for (i = 0; i < ARRAY_SIZE(pipe_crc_sources); i++)
2198                 if (!strcmp(buf, pipe_crc_sources[i])) {
2199                         *s = i;
2200                         return 0;
2201                     }
2202
2203         return -EINVAL;
2204 }
2205
2206 static int display_crc_ctl_parse(struct drm_device *dev, char *buf, size_t len)
2207 {
2208 #define N_WORDS 3
2209         int n_words;
2210         char *words[N_WORDS];
2211         enum pipe pipe;
2212         enum intel_pipe_crc_object object;
2213         enum intel_pipe_crc_source source;
2214
2215         n_words = display_crc_ctl_tokenize(buf, words, N_WORDS);
2216         if (n_words != N_WORDS) {
2217                 DRM_DEBUG_DRIVER("tokenize failed, a command is %d words\n",
2218                                  N_WORDS);
2219                 return -EINVAL;
2220         }
2221
2222         if (display_crc_ctl_parse_object(words[0], &object) < 0) {
2223                 DRM_DEBUG_DRIVER("unknown object %s\n", words[0]);
2224                 return -EINVAL;
2225         }
2226
2227         if (display_crc_ctl_parse_pipe(words[1], &pipe) < 0) {
2228                 DRM_DEBUG_DRIVER("unknown pipe %s\n", words[1]);
2229                 return -EINVAL;
2230         }
2231
2232         if (display_crc_ctl_parse_source(words[2], &source) < 0) {
2233                 DRM_DEBUG_DRIVER("unknown source %s\n", words[2]);
2234                 return -EINVAL;
2235         }
2236
2237         return pipe_crc_set_source(dev, pipe, source);
2238 }
2239
2240 static ssize_t display_crc_ctl_write(struct file *file, const char __user *ubuf,
2241                                      size_t len, loff_t *offp)
2242 {
2243         struct seq_file *m = file->private_data;
2244         struct drm_device *dev = m->private;
2245         char *tmpbuf;
2246         int ret;
2247
2248         if (len == 0)
2249                 return 0;
2250
2251         if (len > PAGE_SIZE - 1) {
2252                 DRM_DEBUG_DRIVER("expected <%lu bytes into pipe crc control\n",
2253                                  PAGE_SIZE);
2254                 return -E2BIG;
2255         }
2256
2257         tmpbuf = kmalloc(len + 1, GFP_KERNEL);
2258         if (!tmpbuf)
2259                 return -ENOMEM;
2260
2261         if (copy_from_user(tmpbuf, ubuf, len)) {
2262                 ret = -EFAULT;
2263                 goto out;
2264         }
2265         tmpbuf[len] = '\0';
2266
2267         ret = display_crc_ctl_parse(dev, tmpbuf, len);
2268
2269 out:
2270         kfree(tmpbuf);
2271         if (ret < 0)
2272                 return ret;
2273
2274         *offp += len;
2275         return len;
2276 }
2277
2278 static const struct file_operations i915_display_crc_ctl_fops = {
2279         .owner = THIS_MODULE,
2280         .open = display_crc_ctl_open,
2281         .read = seq_read,
2282         .llseek = seq_lseek,
2283         .release = single_release,
2284         .write = display_crc_ctl_write
2285 };
2286
2287 static int
2288 i915_wedged_get(void *data, u64 *val)
2289 {
2290         struct drm_device *dev = data;
2291         drm_i915_private_t *dev_priv = dev->dev_private;
2292
2293         *val = atomic_read(&dev_priv->gpu_error.reset_counter);
2294
2295         return 0;
2296 }
2297
2298 static int
2299 i915_wedged_set(void *data, u64 val)
2300 {
2301         struct drm_device *dev = data;
2302
2303         DRM_INFO("Manually setting wedged to %llu\n", val);
2304         i915_handle_error(dev, val);
2305
2306         return 0;
2307 }
2308
2309 DEFINE_SIMPLE_ATTRIBUTE(i915_wedged_fops,
2310                         i915_wedged_get, i915_wedged_set,
2311                         "%llu\n");
2312
2313 static int
2314 i915_ring_stop_get(void *data, u64 *val)
2315 {
2316         struct drm_device *dev = data;
2317         drm_i915_private_t *dev_priv = dev->dev_private;
2318
2319         *val = dev_priv->gpu_error.stop_rings;
2320
2321         return 0;
2322 }
2323
2324 static int
2325 i915_ring_stop_set(void *data, u64 val)
2326 {
2327         struct drm_device *dev = data;
2328         struct drm_i915_private *dev_priv = dev->dev_private;
2329         int ret;
2330
2331         DRM_DEBUG_DRIVER("Stopping rings 0x%08llx\n", val);
2332
2333         ret = mutex_lock_interruptible(&dev->struct_mutex);
2334         if (ret)
2335                 return ret;
2336
2337         dev_priv->gpu_error.stop_rings = val;
2338         mutex_unlock(&dev->struct_mutex);
2339
2340         return 0;
2341 }
2342
2343 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_stop_fops,
2344                         i915_ring_stop_get, i915_ring_stop_set,
2345                         "0x%08llx\n");
2346
2347 static int
2348 i915_ring_missed_irq_get(void *data, u64 *val)
2349 {
2350         struct drm_device *dev = data;
2351         struct drm_i915_private *dev_priv = dev->dev_private;
2352
2353         *val = dev_priv->gpu_error.missed_irq_rings;
2354         return 0;
2355 }
2356
2357 static int
2358 i915_ring_missed_irq_set(void *data, u64 val)
2359 {
2360         struct drm_device *dev = data;
2361         struct drm_i915_private *dev_priv = dev->dev_private;
2362         int ret;
2363
2364         /* Lock against concurrent debugfs callers */
2365         ret = mutex_lock_interruptible(&dev->struct_mutex);
2366         if (ret)
2367                 return ret;
2368         dev_priv->gpu_error.missed_irq_rings = val;
2369         mutex_unlock(&dev->struct_mutex);
2370
2371         return 0;
2372 }
2373
2374 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_missed_irq_fops,
2375                         i915_ring_missed_irq_get, i915_ring_missed_irq_set,
2376                         "0x%08llx\n");
2377
2378 static int
2379 i915_ring_test_irq_get(void *data, u64 *val)
2380 {
2381         struct drm_device *dev = data;
2382         struct drm_i915_private *dev_priv = dev->dev_private;
2383
2384         *val = dev_priv->gpu_error.test_irq_rings;
2385
2386         return 0;
2387 }
2388
2389 static int
2390 i915_ring_test_irq_set(void *data, u64 val)
2391 {
2392         struct drm_device *dev = data;
2393         struct drm_i915_private *dev_priv = dev->dev_private;
2394         int ret;
2395
2396         DRM_DEBUG_DRIVER("Masking interrupts on rings 0x%08llx\n", val);
2397
2398         /* Lock against concurrent debugfs callers */
2399         ret = mutex_lock_interruptible(&dev->struct_mutex);
2400         if (ret)
2401                 return ret;
2402
2403         dev_priv->gpu_error.test_irq_rings = val;
2404         mutex_unlock(&dev->struct_mutex);
2405
2406         return 0;
2407 }
2408
2409 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_test_irq_fops,
2410                         i915_ring_test_irq_get, i915_ring_test_irq_set,
2411                         "0x%08llx\n");
2412
2413 #define DROP_UNBOUND 0x1
2414 #define DROP_BOUND 0x2
2415 #define DROP_RETIRE 0x4
2416 #define DROP_ACTIVE 0x8
2417 #define DROP_ALL (DROP_UNBOUND | \
2418                   DROP_BOUND | \
2419                   DROP_RETIRE | \
2420                   DROP_ACTIVE)
2421 static int
2422 i915_drop_caches_get(void *data, u64 *val)
2423 {
2424         *val = DROP_ALL;
2425
2426         return 0;
2427 }
2428
2429 static int
2430 i915_drop_caches_set(void *data, u64 val)
2431 {
2432         struct drm_device *dev = data;
2433         struct drm_i915_private *dev_priv = dev->dev_private;
2434         struct drm_i915_gem_object *obj, *next;
2435         struct i915_address_space *vm;
2436         struct i915_vma *vma, *x;
2437         int ret;
2438
2439         DRM_DEBUG_DRIVER("Dropping caches: 0x%08llx\n", val);
2440
2441         /* No need to check and wait for gpu resets, only libdrm auto-restarts
2442          * on ioctls on -EAGAIN. */
2443         ret = mutex_lock_interruptible(&dev->struct_mutex);
2444         if (ret)
2445                 return ret;
2446
2447         if (val & DROP_ACTIVE) {
2448                 ret = i915_gpu_idle(dev);
2449                 if (ret)
2450                         goto unlock;
2451         }
2452
2453         if (val & (DROP_RETIRE | DROP_ACTIVE))
2454                 i915_gem_retire_requests(dev);
2455
2456         if (val & DROP_BOUND) {
2457                 list_for_each_entry(vm, &dev_priv->vm_list, global_link) {
2458                         list_for_each_entry_safe(vma, x, &vm->inactive_list,
2459                                                  mm_list) {
2460                                 if (vma->obj->pin_count)
2461                                         continue;
2462
2463                                 ret = i915_vma_unbind(vma);
2464                                 if (ret)
2465                                         goto unlock;
2466                         }
2467                 }
2468         }
2469
2470         if (val & DROP_UNBOUND) {
2471                 list_for_each_entry_safe(obj, next, &dev_priv->mm.unbound_list,
2472                                          global_list)
2473                         if (obj->pages_pin_count == 0) {
2474                                 ret = i915_gem_object_put_pages(obj);
2475                                 if (ret)
2476                                         goto unlock;
2477                         }
2478         }
2479
2480 unlock:
2481         mutex_unlock(&dev->struct_mutex);
2482
2483         return ret;
2484 }
2485
2486 DEFINE_SIMPLE_ATTRIBUTE(i915_drop_caches_fops,
2487                         i915_drop_caches_get, i915_drop_caches_set,
2488                         "0x%08llx\n");
2489
2490 static int
2491 i915_max_freq_get(void *data, u64 *val)
2492 {
2493         struct drm_device *dev = data;
2494         drm_i915_private_t *dev_priv = dev->dev_private;
2495         int ret;
2496
2497         if (!(IS_GEN6(dev) || IS_GEN7(dev)))
2498                 return -ENODEV;
2499
2500         flush_delayed_work(&dev_priv->rps.delayed_resume_work);
2501
2502         ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
2503         if (ret)
2504                 return ret;
2505
2506         if (IS_VALLEYVIEW(dev))
2507                 *val = vlv_gpu_freq(dev_priv->mem_freq,
2508                                     dev_priv->rps.max_delay);
2509         else
2510                 *val = dev_priv->rps.max_delay * GT_FREQUENCY_MULTIPLIER;
2511         mutex_unlock(&dev_priv->rps.hw_lock);
2512
2513         return 0;
2514 }
2515
2516 static int
2517 i915_max_freq_set(void *data, u64 val)
2518 {
2519         struct drm_device *dev = data;
2520         struct drm_i915_private *dev_priv = dev->dev_private;
2521         int ret;
2522
2523         if (!(IS_GEN6(dev) || IS_GEN7(dev)))
2524                 return -ENODEV;
2525
2526         flush_delayed_work(&dev_priv->rps.delayed_resume_work);
2527
2528         DRM_DEBUG_DRIVER("Manually setting max freq to %llu\n", val);
2529
2530         ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
2531         if (ret)
2532                 return ret;
2533
2534         /*
2535          * Turbo will still be enabled, but won't go above the set value.
2536          */
2537         if (IS_VALLEYVIEW(dev)) {
2538                 val = vlv_freq_opcode(dev_priv->mem_freq, val);
2539                 dev_priv->rps.max_delay = val;
2540                 gen6_set_rps(dev, val);
2541         } else {
2542                 do_div(val, GT_FREQUENCY_MULTIPLIER);
2543                 dev_priv->rps.max_delay = val;
2544                 gen6_set_rps(dev, val);
2545         }
2546
2547         mutex_unlock(&dev_priv->rps.hw_lock);
2548
2549         return 0;
2550 }
2551
2552 DEFINE_SIMPLE_ATTRIBUTE(i915_max_freq_fops,
2553                         i915_max_freq_get, i915_max_freq_set,
2554                         "%llu\n");
2555
2556 static int
2557 i915_min_freq_get(void *data, u64 *val)
2558 {
2559         struct drm_device *dev = data;
2560         drm_i915_private_t *dev_priv = dev->dev_private;
2561         int ret;
2562
2563         if (!(IS_GEN6(dev) || IS_GEN7(dev)))
2564                 return -ENODEV;
2565
2566         flush_delayed_work(&dev_priv->rps.delayed_resume_work);
2567
2568         ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
2569         if (ret)
2570                 return ret;
2571
2572         if (IS_VALLEYVIEW(dev))
2573                 *val = vlv_gpu_freq(dev_priv->mem_freq,
2574                                     dev_priv->rps.min_delay);
2575         else
2576                 *val = dev_priv->rps.min_delay * GT_FREQUENCY_MULTIPLIER;
2577         mutex_unlock(&dev_priv->rps.hw_lock);
2578
2579         return 0;
2580 }
2581
2582 static int
2583 i915_min_freq_set(void *data, u64 val)
2584 {
2585         struct drm_device *dev = data;
2586         struct drm_i915_private *dev_priv = dev->dev_private;
2587         int ret;
2588
2589         if (!(IS_GEN6(dev) || IS_GEN7(dev)))
2590                 return -ENODEV;
2591
2592         flush_delayed_work(&dev_priv->rps.delayed_resume_work);
2593
2594         DRM_DEBUG_DRIVER("Manually setting min freq to %llu\n", val);
2595
2596         ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
2597         if (ret)
2598                 return ret;
2599
2600         /*
2601          * Turbo will still be enabled, but won't go below the set value.
2602          */
2603         if (IS_VALLEYVIEW(dev)) {
2604                 val = vlv_freq_opcode(dev_priv->mem_freq, val);
2605                 dev_priv->rps.min_delay = val;
2606                 valleyview_set_rps(dev, val);
2607         } else {
2608                 do_div(val, GT_FREQUENCY_MULTIPLIER);
2609                 dev_priv->rps.min_delay = val;
2610                 gen6_set_rps(dev, val);
2611         }
2612         mutex_unlock(&dev_priv->rps.hw_lock);
2613
2614         return 0;
2615 }
2616
2617 DEFINE_SIMPLE_ATTRIBUTE(i915_min_freq_fops,
2618                         i915_min_freq_get, i915_min_freq_set,
2619                         "%llu\n");
2620
2621 static int
2622 i915_cache_sharing_get(void *data, u64 *val)
2623 {
2624         struct drm_device *dev = data;
2625         drm_i915_private_t *dev_priv = dev->dev_private;
2626         u32 snpcr;
2627         int ret;
2628
2629         if (!(IS_GEN6(dev) || IS_GEN7(dev)))
2630                 return -ENODEV;
2631
2632         ret = mutex_lock_interruptible(&dev->struct_mutex);
2633         if (ret)
2634                 return ret;
2635
2636         snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
2637         mutex_unlock(&dev_priv->dev->struct_mutex);
2638
2639         *val = (snpcr & GEN6_MBC_SNPCR_MASK) >> GEN6_MBC_SNPCR_SHIFT;
2640
2641         return 0;
2642 }
2643
2644 static int
2645 i915_cache_sharing_set(void *data, u64 val)
2646 {
2647         struct drm_device *dev = data;
2648         struct drm_i915_private *dev_priv = dev->dev_private;
2649         u32 snpcr;
2650
2651         if (!(IS_GEN6(dev) || IS_GEN7(dev)))
2652                 return -ENODEV;
2653
2654         if (val > 3)
2655                 return -EINVAL;
2656
2657         DRM_DEBUG_DRIVER("Manually setting uncore sharing to %llu\n", val);
2658
2659         /* Update the cache sharing policy here as well */
2660         snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
2661         snpcr &= ~GEN6_MBC_SNPCR_MASK;
2662         snpcr |= (val << GEN6_MBC_SNPCR_SHIFT);
2663         I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr);
2664
2665         return 0;
2666 }
2667
2668 DEFINE_SIMPLE_ATTRIBUTE(i915_cache_sharing_fops,
2669                         i915_cache_sharing_get, i915_cache_sharing_set,
2670                         "%llu\n");
2671
2672 static int i915_forcewake_open(struct inode *inode, struct file *file)
2673 {
2674         struct drm_device *dev = inode->i_private;
2675         struct drm_i915_private *dev_priv = dev->dev_private;
2676
2677         if (INTEL_INFO(dev)->gen < 6)
2678                 return 0;
2679
2680         gen6_gt_force_wake_get(dev_priv);
2681
2682         return 0;
2683 }
2684
2685 static int i915_forcewake_release(struct inode *inode, struct file *file)
2686 {
2687         struct drm_device *dev = inode->i_private;
2688         struct drm_i915_private *dev_priv = dev->dev_private;
2689
2690         if (INTEL_INFO(dev)->gen < 6)
2691                 return 0;
2692
2693         gen6_gt_force_wake_put(dev_priv);
2694
2695         return 0;
2696 }
2697
2698 static const struct file_operations i915_forcewake_fops = {
2699         .owner = THIS_MODULE,
2700         .open = i915_forcewake_open,
2701         .release = i915_forcewake_release,
2702 };
2703
2704 static int i915_forcewake_create(struct dentry *root, struct drm_minor *minor)
2705 {
2706         struct drm_device *dev = minor->dev;
2707         struct dentry *ent;
2708
2709         ent = debugfs_create_file("i915_forcewake_user",
2710                                   S_IRUSR,
2711                                   root, dev,
2712                                   &i915_forcewake_fops);
2713         if (IS_ERR(ent))
2714                 return PTR_ERR(ent);
2715
2716         return drm_add_fake_info_node(minor, ent, &i915_forcewake_fops);
2717 }
2718
2719 static int i915_debugfs_create(struct dentry *root,
2720                                struct drm_minor *minor,
2721                                const char *name,
2722                                const struct file_operations *fops)
2723 {
2724         struct drm_device *dev = minor->dev;
2725         struct dentry *ent;
2726
2727         ent = debugfs_create_file(name,
2728                                   S_IRUGO | S_IWUSR,
2729                                   root, dev,
2730                                   fops);
2731         if (IS_ERR(ent))
2732                 return PTR_ERR(ent);
2733
2734         return drm_add_fake_info_node(minor, ent, fops);
2735 }
2736
2737 static struct drm_info_list i915_debugfs_list[] = {
2738         {"i915_capabilities", i915_capabilities, 0},
2739         {"i915_gem_objects", i915_gem_object_info, 0},
2740         {"i915_gem_gtt", i915_gem_gtt_info, 0},
2741         {"i915_gem_pinned", i915_gem_gtt_info, 0, (void *) PINNED_LIST},
2742         {"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
2743         {"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST},
2744         {"i915_gem_stolen", i915_gem_stolen_list_info },
2745         {"i915_gem_pageflip", i915_gem_pageflip_info, 0},
2746         {"i915_gem_request", i915_gem_request_info, 0},
2747         {"i915_gem_seqno", i915_gem_seqno_info, 0},
2748         {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
2749         {"i915_gem_interrupt", i915_interrupt_info, 0},
2750         {"i915_gem_hws", i915_hws_info, 0, (void *)RCS},
2751         {"i915_gem_hws_blt", i915_hws_info, 0, (void *)BCS},
2752         {"i915_gem_hws_bsd", i915_hws_info, 0, (void *)VCS},
2753         {"i915_gem_hws_vebox", i915_hws_info, 0, (void *)VECS},
2754         {"i915_rstdby_delays", i915_rstdby_delays, 0},
2755         {"i915_cur_delayinfo", i915_cur_delayinfo, 0},
2756         {"i915_delayfreq_table", i915_delayfreq_table, 0},
2757         {"i915_inttoext_table", i915_inttoext_table, 0},
2758         {"i915_drpc_info", i915_drpc_info, 0},
2759         {"i915_emon_status", i915_emon_status, 0},
2760         {"i915_ring_freq_table", i915_ring_freq_table, 0},
2761         {"i915_gfxec", i915_gfxec, 0},
2762         {"i915_fbc_status", i915_fbc_status, 0},
2763         {"i915_ips_status", i915_ips_status, 0},
2764         {"i915_sr_status", i915_sr_status, 0},
2765         {"i915_opregion", i915_opregion, 0},
2766         {"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
2767         {"i915_context_status", i915_context_status, 0},
2768         {"i915_gen6_forcewake_count", i915_gen6_forcewake_count_info, 0},
2769         {"i915_swizzle_info", i915_swizzle_info, 0},
2770         {"i915_ppgtt_info", i915_ppgtt_info, 0},
2771         {"i915_dpio", i915_dpio_info, 0},
2772         {"i915_llc", i915_llc, 0},
2773         {"i915_edp_psr_status", i915_edp_psr_status, 0},
2774         {"i915_energy_uJ", i915_energy_uJ, 0},
2775         {"i915_pc8_status", i915_pc8_status, 0},
2776 };
2777 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
2778
2779 static struct i915_debugfs_files {
2780         const char *name;
2781         const struct file_operations *fops;
2782 } i915_debugfs_files[] = {
2783         {"i915_wedged", &i915_wedged_fops},
2784         {"i915_max_freq", &i915_max_freq_fops},
2785         {"i915_min_freq", &i915_min_freq_fops},
2786         {"i915_cache_sharing", &i915_cache_sharing_fops},
2787         {"i915_ring_stop", &i915_ring_stop_fops},
2788         {"i915_ring_missed_irq", &i915_ring_missed_irq_fops},
2789         {"i915_ring_test_irq", &i915_ring_test_irq_fops},
2790         {"i915_gem_drop_caches", &i915_drop_caches_fops},
2791         {"i915_error_state", &i915_error_state_fops},
2792         {"i915_next_seqno", &i915_next_seqno_fops},
2793         {"i915_display_crc_ctl", &i915_display_crc_ctl_fops},
2794 };
2795
2796 void intel_display_crc_init(struct drm_device *dev)
2797 {
2798         struct drm_i915_private *dev_priv = dev->dev_private;
2799         int i;
2800
2801         for (i = 0; i < INTEL_INFO(dev)->num_pipes; i++) {
2802                 struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[i];
2803
2804                 atomic_set(&pipe_crc->available, 1);
2805                 init_waitqueue_head(&pipe_crc->wq);
2806         }
2807 }
2808
2809 int i915_debugfs_init(struct drm_minor *minor)
2810 {
2811         int ret, i;
2812
2813         ret = i915_forcewake_create(minor->debugfs_root, minor);
2814         if (ret)
2815                 return ret;
2816
2817         for (i = 0; i < ARRAY_SIZE(i915_pipe_crc_data); i++) {
2818                 ret = i915_pipe_crc_create(minor->debugfs_root, minor, i);
2819                 if (ret)
2820                         return ret;
2821         }
2822
2823         for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
2824                 ret = i915_debugfs_create(minor->debugfs_root, minor,
2825                                           i915_debugfs_files[i].name,
2826                                           i915_debugfs_files[i].fops);
2827                 if (ret)
2828                         return ret;
2829         }
2830
2831         return drm_debugfs_create_files(i915_debugfs_list,
2832                                         I915_DEBUGFS_ENTRIES,
2833                                         minor->debugfs_root, minor);
2834 }
2835
2836 void i915_debugfs_cleanup(struct drm_minor *minor)
2837 {
2838         int i;
2839
2840         drm_debugfs_remove_files(i915_debugfs_list,
2841                                  I915_DEBUGFS_ENTRIES, minor);
2842
2843         drm_debugfs_remove_files((struct drm_info_list *) &i915_forcewake_fops,
2844                                  1, minor);
2845
2846         for (i = 0; i < ARRAY_SIZE(i915_pipe_crc_data); i++) {
2847                 struct drm_info_list *info_list =
2848                         (struct drm_info_list *)&i915_pipe_crc_data[i];
2849
2850                 drm_debugfs_remove_files(info_list, 1, minor);
2851         }
2852
2853         for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
2854                 struct drm_info_list *info_list =
2855                         (struct drm_info_list *) i915_debugfs_files[i].fops;
2856
2857                 drm_debugfs_remove_files(info_list, 1, minor);
2858         }
2859 }
2860
2861 #endif /* CONFIG_DEBUG_FS */