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/debugfs.h>
  30 #include <linux/sort.h>
  31 #include "intel_drv.h"
  32
  33 static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node)
  34 {
  35         return to_i915(node->minor->dev);
  36 }
  37
  38 static __always_inline void seq_print_param(struct seq_file *m,
  39                                             const char *name,
  40                                             const char *type,
  41                                             const void *x)
  42 {
  43         if (!__builtin_strcmp(type, "bool"))
  44                 seq_printf(m, "i915.%s=%s\n", name, yesno(*(const bool *)x));
  45         else if (!__builtin_strcmp(type, "int"))
  46                 seq_printf(m, "i915.%s=%d\n", name, *(const int *)x);
  47         else if (!__builtin_strcmp(type, "unsigned int"))
  48                 seq_printf(m, "i915.%s=%u\n", name, *(const unsigned int *)x);
  49         else if (!__builtin_strcmp(type, "char *"))
  50                 seq_printf(m, "i915.%s=%s\n", name, *(const char **)x);
  51         else
  52                 BUILD_BUG();
  53 }
  54
  55 static int i915_capabilities(struct seq_file *m, void *data)
  56 {
  57         struct drm_i915_private *dev_priv = node_to_i915(m->private);
  58         const struct intel_device_info *info = INTEL_INFO(dev_priv);
  59
  60         seq_printf(m, "gen: %d\n", INTEL_GEN(dev_priv));
  61         seq_printf(m, "platform: %s\n", intel_platform_name(info->platform));
  62         seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev_priv));
  63
  64 #define PRINT_FLAG(x)  seq_printf(m, #x ": %s\n", yesno(info->x))
  65         DEV_INFO_FOR_EACH_FLAG(PRINT_FLAG);
  66 #undef PRINT_FLAG
  67
  68         kernel_param_lock(THIS_MODULE);
  69 #define PRINT_PARAM(T, x) seq_print_param(m, #x, #T, &i915.x);
  70         I915_PARAMS_FOR_EACH(PRINT_PARAM);
  71 #undef PRINT_PARAM
  72         kernel_param_unlock(THIS_MODULE);
  73
  74         return 0;
  75 }
  76
  77 static char get_active_flag(struct drm_i915_gem_object *obj)
  78 {
  79         return i915_gem_object_is_active(obj) ? '*' : ' ';
  80 }
  81
  82 static char get_pin_flag(struct drm_i915_gem_object *obj)
  83 {
  84         return obj->pin_display ? 'p' : ' ';
  85 }
  86
  87 static char get_tiling_flag(struct drm_i915_gem_object *obj)
  88 {
  89         switch (i915_gem_object_get_tiling(obj)) {
  90         default:
  91         case I915_TILING_NONE: return ' ';
  92         case I915_TILING_X: return 'X';
  93         case I915_TILING_Y: return 'Y';
  94         }
  95 }
  96
  97 static char get_global_flag(struct drm_i915_gem_object *obj)
  98 {
  99         return !list_empty(&obj->userfault_link) ? 'g' : ' ';
 100 }
 101
 102 static char get_pin_mapped_flag(struct drm_i915_gem_object *obj)
 103 {
 104         return obj->mm.mapping ? 'M' : ' ';
 105 }
 106
 107 static u64 i915_gem_obj_total_ggtt_size(struct drm_i915_gem_object *obj)
 108 {
 109         u64 size = 0;
 110         struct i915_vma *vma;
 111
 112         list_for_each_entry(vma, &obj->vma_list, obj_link) {
 113                 if (i915_vma_is_ggtt(vma) && drm_mm_node_allocated(&vma->node))
 114                         size += vma->node.size;
 115         }
 116
 117         return size;
 118 }
 119
 120 static void
 121 describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
 122 {
 123         struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
 124         struct intel_engine_cs *engine;
 125         struct i915_vma *vma;
 126         unsigned int frontbuffer_bits;
 127         int pin_count = 0;
 128
 129         lockdep_assert_held(&obj->base.dev->struct_mutex);
 130
 131         seq_printf(m, "%pK: %c%c%c%c%c %8zdKiB %02x %02x %s%s%s",
 132                    &obj->base,
 133                    get_active_flag(obj),
 134                    get_pin_flag(obj),
 135                    get_tiling_flag(obj),
 136                    get_global_flag(obj),
 137                    get_pin_mapped_flag(obj),
 138                    obj->base.size / 1024,
 139                    obj->base.read_domains,
 140                    obj->base.write_domain,
 141                    i915_cache_level_str(dev_priv, obj->cache_level),
 142                    obj->mm.dirty ? " dirty" : "",
 143                    obj->mm.madv == I915_MADV_DONTNEED ? " purgeable" : "");
 144         if (obj->base.name)
 145                 seq_printf(m, " (name: %d)", obj->base.name);
 146         list_for_each_entry(vma, &obj->vma_list, obj_link) {
 147                 if (i915_vma_is_pinned(vma))
 148                         pin_count++;
 149         }
 150         seq_printf(m, " (pinned x %d)", pin_count);
 151         if (obj->pin_display)
 152                 seq_printf(m, " (display)");
 153         list_for_each_entry(vma, &obj->vma_list, obj_link) {
 154                 if (!drm_mm_node_allocated(&vma->node))
 155                         continue;
 156
 157                 seq_printf(m, " (%sgtt offset: %08llx, size: %08llx",
 158                            i915_vma_is_ggtt(vma) ? "g" : "pp",
 159                            vma->node.start, vma->node.size);
 160                 if (i915_vma_is_ggtt(vma)) {
 161                         switch (vma->ggtt_view.type) {
 162                         case I915_GGTT_VIEW_NORMAL:
 163                                 seq_puts(m, ", normal");
 164                                 break;
 165
 166                         case I915_GGTT_VIEW_PARTIAL:
 167                                 seq_printf(m, ", partial [%08llx+%x]",
 168                                            vma->ggtt_view.partial.offset << PAGE_SHIFT,
 169                                            vma->ggtt_view.partial.size << PAGE_SHIFT);
 170                                 break;
 171
 172                         case I915_GGTT_VIEW_ROTATED:
 173                                 seq_printf(m, ", rotated [(%ux%u, stride=%u, offset=%u), (%ux%u, stride=%u, offset=%u)]",
 174                                            vma->ggtt_view.rotated.plane[0].width,
 175                                            vma->ggtt_view.rotated.plane[0].height,
 176                                            vma->ggtt_view.rotated.plane[0].stride,
 177                                            vma->ggtt_view.rotated.plane[0].offset,
 178                                            vma->ggtt_view.rotated.plane[1].width,
 179                                            vma->ggtt_view.rotated.plane[1].height,
 180                                            vma->ggtt_view.rotated.plane[1].stride,
 181                                            vma->ggtt_view.rotated.plane[1].offset);
 182                                 break;
 183
 184                         default:
 185                                 MISSING_CASE(vma->ggtt_view.type);
 186                                 break;
 187                         }
 188                 }
 189                 if (vma->fence)
 190                         seq_printf(m, " , fence: %d%s",
 191                                    vma->fence->id,
 192                                    i915_gem_active_isset(&vma->last_fence) ? "*" : "");
 193                 seq_puts(m, ")");
 194         }
 195         if (obj->stolen)
 196                 seq_printf(m, " (stolen: %08llx)", obj->stolen->start);
 197
 198         engine = i915_gem_object_last_write_engine(obj);
 199         if (engine)
 200                 seq_printf(m, " (%s)", engine->name);
 201
 202         frontbuffer_bits = atomic_read(&obj->frontbuffer_bits);
 203         if (frontbuffer_bits)
 204                 seq_printf(m, " (frontbuffer: 0x%03x)", frontbuffer_bits);
 205 }
 206
 207 static int obj_rank_by_stolen(const void *A, const void *B)
 208 {
 209         const struct drm_i915_gem_object *a =
 210                 *(const struct drm_i915_gem_object **)A;
 211         const struct drm_i915_gem_object *b =
 212                 *(const struct drm_i915_gem_object **)B;
 213
 214         if (a->stolen->start < b->stolen->start)
 215                 return -1;
 216         if (a->stolen->start > b->stolen->start)
 217                 return 1;
 218         return 0;
 219 }
 220
 221 static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
 222 {
 223         struct drm_i915_private *dev_priv = node_to_i915(m->private);
 224         struct drm_device *dev = &dev_priv->drm;
 225         struct drm_i915_gem_object **objects;
 226         struct drm_i915_gem_object *obj;
 227         u64 total_obj_size, total_gtt_size;
 228         unsigned long total, count, n;
 229         int ret;
 230
 231         total = READ_ONCE(dev_priv->mm.object_count);
 232         objects = kvmalloc_array(total, sizeof(*objects), GFP_KERNEL);
 233         if (!objects)
 234                 return -ENOMEM;
 235
 236         ret = mutex_lock_interruptible(&dev->struct_mutex);
 237         if (ret)
 238                 goto out;
 239
 240         total_obj_size = total_gtt_size = count = 0;
 241         list_for_each_entry(obj, &dev_priv->mm.bound_list, global_link) {
 242                 if (count == total)
 243                         break;
 244
 245                 if (obj->stolen == NULL)
 246                         continue;
 247
 248                 objects[count++] = obj;
 249                 total_obj_size += obj->base.size;
 250                 total_gtt_size += i915_gem_obj_total_ggtt_size(obj);
 251
 252         }
 253         list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_link) {
 254                 if (count == total)
 255                         break;
 256
 257                 if (obj->stolen == NULL)
 258                         continue;
 259
 260                 objects[count++] = obj;
 261                 total_obj_size += obj->base.size;
 262         }
 263
 264         sort(objects, count, sizeof(*objects), obj_rank_by_stolen, NULL);
 265
 266         seq_puts(m, "Stolen:\n");
 267         for (n = 0; n < count; n++) {
 268                 seq_puts(m, "   ");
 269                 describe_obj(m, objects[n]);
 270                 seq_putc(m, '\n');
 271         }
 272         seq_printf(m, "Total %lu objects, %llu bytes, %llu GTT size\n",
 273                    count, total_obj_size, total_gtt_size);
 274
 275         mutex_unlock(&dev->struct_mutex);
 276 out:
 277         kvfree(objects);
 278         return ret;
 279 }
 280
 281 struct file_stats {
 282         struct drm_i915_file_private *file_priv;
 283         unsigned long count;
 284         u64 total, unbound;
 285         u64 global, shared;
 286         u64 active, inactive;
 287 };
 288
 289 static int per_file_stats(int id, void *ptr, void *data)
 290 {
 291         struct drm_i915_gem_object *obj = ptr;
 292         struct file_stats *stats = data;
 293         struct i915_vma *vma;
 294
 295         stats->count++;
 296         stats->total += obj->base.size;
 297         if (!obj->bind_count)
 298                 stats->unbound += obj->base.size;
 299         if (obj->base.name || obj->base.dma_buf)
 300                 stats->shared += obj->base.size;
 301
 302         list_for_each_entry(vma, &obj->vma_list, obj_link) {
 303                 if (!drm_mm_node_allocated(&vma->node))
 304                         continue;
 305
 306                 if (i915_vma_is_ggtt(vma)) {
 307                         stats->global += vma->node.size;
 308                 } else {
 309                         struct i915_hw_ppgtt *ppgtt = i915_vm_to_ppgtt(vma->vm);
 310
 311                         if (ppgtt->base.file != stats->file_priv)
 312                                 continue;
 313                 }
 314
 315                 if (i915_vma_is_active(vma))
 316                         stats->active += vma->node.size;
 317                 else
 318                         stats->inactive += vma->node.size;
 319         }
 320
 321         return 0;
 322 }
 323
 324 #define print_file_stats(m, name, stats) do { \
 325         if (stats.count) \
 326                 seq_printf(m, "%s: %lu objects, %llu bytes (%llu active, %llu inactive, %llu global, %llu shared, %llu unbound)\n", \
 327                            name, \
 328                            stats.count, \
 329                            stats.total, \
 330                            stats.active, \
 331                            stats.inactive, \
 332                            stats.global, \
 333                            stats.shared, \
 334                            stats.unbound); \
 335 } while (0)
 336
 337 static void print_batch_pool_stats(struct seq_file *m,
 338                                    struct drm_i915_private *dev_priv)
 339 {
 340         struct drm_i915_gem_object *obj;
 341         struct file_stats stats;
 342         struct intel_engine_cs *engine;
 343         enum intel_engine_id id;
 344         int j;
 345
 346         memset(&stats, 0, sizeof(stats));
 347
 348         for_each_engine(engine, dev_priv, id) {
 349                 for (j = 0; j < ARRAY_SIZE(engine->batch_pool.cache_list); j++) {
 350                         list_for_each_entry(obj,
 351                                             &engine->batch_pool.cache_list[j],
 352                                             batch_pool_link)
 353                                 per_file_stats(0, obj, &stats);
 354                 }
 355         }
 356
 357         print_file_stats(m, "[k]batch pool", stats);
 358 }
 359
 360 static int per_file_ctx_stats(int id, void *ptr, void *data)
 361 {
 362         struct i915_gem_context *ctx = ptr;
 363         int n;
 364
 365         for (n = 0; n < ARRAY_SIZE(ctx->engine); n++) {
 366                 if (ctx->engine[n].state)
 367                         per_file_stats(0, ctx->engine[n].state->obj, data);
 368                 if (ctx->engine[n].ring)
 369                         per_file_stats(0, ctx->engine[n].ring->vma->obj, data);
 370         }
 371
 372         return 0;
 373 }
 374
 375 static void print_context_stats(struct seq_file *m,
 376                                 struct drm_i915_private *dev_priv)
 377 {
 378         struct drm_device *dev = &dev_priv->drm;
 379         struct file_stats stats;
 380         struct drm_file *file;
 381
 382         memset(&stats, 0, sizeof(stats));
 383
 384         mutex_lock(&dev->struct_mutex);
 385         if (dev_priv->kernel_context)
 386                 per_file_ctx_stats(0, dev_priv->kernel_context, &stats);
 387
 388         list_for_each_entry(file, &dev->filelist, lhead) {
 389                 struct drm_i915_file_private *fpriv = file->driver_priv;
 390                 idr_for_each(&fpriv->context_idr, per_file_ctx_stats, &stats);
 391         }
 392         mutex_unlock(&dev->struct_mutex);
 393
 394         print_file_stats(m, "[k]contexts", stats);
 395 }
 396
 397 static int i915_gem_object_info(struct seq_file *m, void *data)
 398 {
 399         struct drm_i915_private *dev_priv = node_to_i915(m->private);
 400         struct drm_device *dev = &dev_priv->drm;
 401         struct i915_ggtt *ggtt = &dev_priv->ggtt;
 402         u32 count, mapped_count, purgeable_count, dpy_count;
 403         u64 size, mapped_size, purgeable_size, dpy_size;
 404         struct drm_i915_gem_object *obj;
 405         struct drm_file *file;
 406         int ret;
 407
 408         ret = mutex_lock_interruptible(&dev->struct_mutex);
 409         if (ret)
 410                 return ret;
 411
 412         seq_printf(m, "%u objects, %llu bytes\n",
 413                    dev_priv->mm.object_count,
 414                    dev_priv->mm.object_memory);
 415
 416         size = count = 0;
 417         mapped_size = mapped_count = 0;
 418         purgeable_size = purgeable_count = 0;
 419         list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_link) {
 420                 size += obj->base.size;
 421                 ++count;
 422
 423                 if (obj->mm.madv == I915_MADV_DONTNEED) {
 424                         purgeable_size += obj->base.size;
 425                         ++purgeable_count;
 426                 }
 427
 428                 if (obj->mm.mapping) {
 429                         mapped_count++;
 430                         mapped_size += obj->base.size;
 431                 }
 432         }
 433         seq_printf(m, "%u unbound objects, %llu bytes\n", count, size);
 434
 435         size = count = dpy_size = dpy_count = 0;
 436         list_for_each_entry(obj, &dev_priv->mm.bound_list, global_link) {
 437                 size += obj->base.size;
 438                 ++count;
 439
 440                 if (obj->pin_display) {
 441                         dpy_size += obj->base.size;
 442                         ++dpy_count;
 443                 }
 444
 445                 if (obj->mm.madv == I915_MADV_DONTNEED) {
 446                         purgeable_size += obj->base.size;
 447                         ++purgeable_count;
 448                 }
 449
 450                 if (obj->mm.mapping) {
 451                         mapped_count++;
 452                         mapped_size += obj->base.size;
 453                 }
 454         }
 455         seq_printf(m, "%u bound objects, %llu bytes\n",
 456                    count, size);
 457         seq_printf(m, "%u purgeable objects, %llu bytes\n",
 458                    purgeable_count, purgeable_size);
 459         seq_printf(m, "%u mapped objects, %llu bytes\n",
 460                    mapped_count, mapped_size);
 461         seq_printf(m, "%u display objects (pinned), %llu bytes\n",
 462                    dpy_count, dpy_size);
 463
 464         seq_printf(m, "%llu [%llu] gtt total\n",
 465                    ggtt->base.total, ggtt->mappable_end);
 466
 467         seq_putc(m, '\n');
 468         print_batch_pool_stats(m, dev_priv);
 469         mutex_unlock(&dev->struct_mutex);
 470
 471         mutex_lock(&dev->filelist_mutex);
 472         print_context_stats(m, dev_priv);
 473         list_for_each_entry_reverse(file, &dev->filelist, lhead) {
 474                 struct file_stats stats;
 475                 struct drm_i915_file_private *file_priv = file->driver_priv;
 476                 struct drm_i915_gem_request *request;
 477                 struct task_struct *task;
 478
 479                 memset(&stats, 0, sizeof(stats));
 480                 stats.file_priv = file->driver_priv;
 481                 spin_lock(&file->table_lock);
 482                 idr_for_each(&file->object_idr, per_file_stats, &stats);
 483                 spin_unlock(&file->table_lock);
 484                 /*
 485                  * Although we have a valid reference on file->pid, that does
 486                  * not guarantee that the task_struct who called get_pid() is
 487                  * still alive (e.g. get_pid(current) => fork() => exit()).
 488                  * Therefore, we need to protect this ->comm access using RCU.
 489                  */
 490                 mutex_lock(&dev->struct_mutex);
 491                 request = list_first_entry_or_null(&file_priv->mm.request_list,
 492                                                    struct drm_i915_gem_request,
 493                                                    client_link);
 494                 rcu_read_lock();
 495                 task = pid_task(request && request->ctx->pid ?
 496                                 request->ctx->pid : file->pid,
 497                                 PIDTYPE_PID);
 498                 print_file_stats(m, task ? task->comm : "<unknown>", stats);
 499                 rcu_read_unlock();
 500                 mutex_unlock(&dev->struct_mutex);
 501         }
 502         mutex_unlock(&dev->filelist_mutex);
 503
 504         return 0;
 505 }
 506
 507 static int i915_gem_gtt_info(struct seq_file *m, void *data)
 508 {
 509         struct drm_info_node *node = m->private;
 510         struct drm_i915_private *dev_priv = node_to_i915(node);
 511         struct drm_device *dev = &dev_priv->drm;
 512         bool show_pin_display_only = !!node->info_ent->data;
 513         struct drm_i915_gem_object *obj;
 514         u64 total_obj_size, total_gtt_size;
 515         int count, ret;
 516
 517         ret = mutex_lock_interruptible(&dev->struct_mutex);
 518         if (ret)
 519                 return ret;
 520
 521         total_obj_size = total_gtt_size = count = 0;
 522         list_for_each_entry(obj, &dev_priv->mm.bound_list, global_link) {
 523                 if (show_pin_display_only && !obj->pin_display)
 524                         continue;
 525
 526                 seq_puts(m, "   ");
 527                 describe_obj(m, obj);
 528                 seq_putc(m, '\n');
 529                 total_obj_size += obj->base.size;
 530                 total_gtt_size += i915_gem_obj_total_ggtt_size(obj);
 531                 count++;
 532         }
 533
 534         mutex_unlock(&dev->struct_mutex);
 535
 536         seq_printf(m, "Total %d objects, %llu bytes, %llu GTT size\n",
 537                    count, total_obj_size, total_gtt_size);
 538
 539         return 0;
 540 }
 541
 542 static int i915_gem_pageflip_info(struct seq_file *m, void *data)
 543 {
 544         struct drm_i915_private *dev_priv = node_to_i915(m->private);
 545         struct drm_device *dev = &dev_priv->drm;
 546         struct intel_crtc *crtc;
 547         int ret;
 548
 549         ret = mutex_lock_interruptible(&dev->struct_mutex);
 550         if (ret)
 551                 return ret;
 552
 553         for_each_intel_crtc(dev, crtc) {
 554                 const char pipe = pipe_name(crtc->pipe);
 555                 const char plane = plane_name(crtc->plane);
 556                 struct intel_flip_work *work;
 557
 558                 spin_lock_irq(&dev->event_lock);
 559                 work = crtc->flip_work;
 560                 if (work == NULL) {
 561                         seq_printf(m, "No flip due on pipe %c (plane %c)\n",
 562                                    pipe, plane);
 563                 } else {
 564                         u32 pending;
 565                         u32 addr;
 566
 567                         pending = atomic_read(&work->pending);
 568                         if (pending) {
 569                                 seq_printf(m, "Flip ioctl preparing on pipe %c (plane %c)\n",
 570                                            pipe, plane);
 571                         } else {
 572                                 seq_printf(m, "Flip pending (waiting for vsync) on pipe %c (plane %c)\n",
 573                                            pipe, plane);
 574                         }
 575                         if (work->flip_queued_req) {
 576                                 struct intel_engine_cs *engine = work->flip_queued_req->engine;
 577
 578                                 seq_printf(m, "Flip queued on %s at seqno %x, last submitted seqno %x [current breadcrumb %x], completed? %d\n",
 579                                            engine->name,
 580                                            work->flip_queued_req->global_seqno,
 581                                            intel_engine_last_submit(engine),
 582                                            intel_engine_get_seqno(engine),
 583                                            i915_gem_request_completed(work->flip_queued_req));
 584                         } else
 585                                 seq_printf(m, "Flip not associated with any ring\n");
 586                         seq_printf(m, "Flip queued on frame %d, (was ready on frame %d), now %d\n",
 587                                    work->flip_queued_vblank,
 588                                    work->flip_ready_vblank,
 589                                    intel_crtc_get_vblank_counter(crtc));
 590                         seq_printf(m, "%d prepares\n", atomic_read(&work->pending));
 591
 592                         if (INTEL_GEN(dev_priv) >= 4)
 593                                 addr = I915_HI_DISPBASE(I915_READ(DSPSURF(crtc->plane)));
 594                         else
 595                                 addr = I915_READ(DSPADDR(crtc->plane));
 596                         seq_printf(m, "Current scanout address 0x%08x\n", addr);
 597
 598                         if (work->pending_flip_obj) {
 599                                 seq_printf(m, "New framebuffer address 0x%08lx\n", (long)work->gtt_offset);
 600                                 seq_printf(m, "MMIO update completed? %d\n",  addr == work->gtt_offset);
 601                         }
 602                 }
 603                 spin_unlock_irq(&dev->event_lock);
 604         }
 605
 606         mutex_unlock(&dev->struct_mutex);
 607
 608         return 0;
 609 }
 610
 611 static int i915_gem_batch_pool_info(struct seq_file *m, void *data)
 612 {
 613         struct drm_i915_private *dev_priv = node_to_i915(m->private);
 614         struct drm_device *dev = &dev_priv->drm;
 615         struct drm_i915_gem_object *obj;
 616         struct intel_engine_cs *engine;
 617         enum intel_engine_id id;
 618         int total = 0;
 619         int ret, j;
 620
 621         ret = mutex_lock_interruptible(&dev->struct_mutex);
 622         if (ret)
 623                 return ret;
 624
 625         for_each_engine(engine, dev_priv, id) {
 626                 for (j = 0; j < ARRAY_SIZE(engine->batch_pool.cache_list); j++) {
 627                         int count;
 628
 629                         count = 0;
 630                         list_for_each_entry(obj,
 631                                             &engine->batch_pool.cache_list[j],
 632                                             batch_pool_link)
 633                                 count++;
 634                         seq_printf(m, "%s cache[%d]: %d objects\n",
 635                                    engine->name, j, count);
 636
 637                         list_for_each_entry(obj,
 638                                             &engine->batch_pool.cache_list[j],
 639                                             batch_pool_link) {
 640                                 seq_puts(m, "   ");
 641                                 describe_obj(m, obj);
 642                                 seq_putc(m, '\n');
 643                         }
 644
 645                         total += count;
 646                 }
 647         }
 648
 649         seq_printf(m, "total: %d\n", total);
 650
 651         mutex_unlock(&dev->struct_mutex);
 652
 653         return 0;
 654 }
 655
 656 static void print_request(struct seq_file *m,
 657                           struct drm_i915_gem_request *rq,
 658                           const char *prefix)
 659 {
 660         seq_printf(m, "%s%x [%x:%x] prio=%d @ %dms: %s\n", prefix,
 661                    rq->global_seqno, rq->ctx->hw_id, rq->fence.seqno,
 662                    rq->priotree.priority,
 663                    jiffies_to_msecs(jiffies - rq->emitted_jiffies),
 664                    rq->timeline->common->name);
 665 }
 666
 667 static int i915_gem_request_info(struct seq_file *m, void *data)
 668 {
 669         struct drm_i915_private *dev_priv = node_to_i915(m->private);
 670         struct drm_device *dev = &dev_priv->drm;
 671         struct drm_i915_gem_request *req;
 672         struct intel_engine_cs *engine;
 673         enum intel_engine_id id;
 674         int ret, any;
 675
 676         ret = mutex_lock_interruptible(&dev->struct_mutex);
 677         if (ret)
 678                 return ret;
 679
 680         any = 0;
 681         for_each_engine(engine, dev_priv, id) {
 682                 int count;
 683
 684                 count = 0;
 685                 list_for_each_entry(req, &engine->timeline->requests, link)
 686                         count++;
 687                 if (count == 0)
 688                         continue;
 689
 690                 seq_printf(m, "%s requests: %d\n", engine->name, count);
 691                 list_for_each_entry(req, &engine->timeline->requests, link)
 692                         print_request(m, req, "    ");
 693
 694                 any++;
 695         }
 696         mutex_unlock(&dev->struct_mutex);
 697
 698         if (any == 0)
 699                 seq_puts(m, "No requests\n");
 700
 701         return 0;
 702 }
 703
 704 static void i915_ring_seqno_info(struct seq_file *m,
 705                                  struct intel_engine_cs *engine)
 706 {
 707         struct intel_breadcrumbs *b = &engine->breadcrumbs;
 708         struct rb_node *rb;
 709
 710         seq_printf(m, "Current sequence (%s): %x\n",
 711                    engine->name, intel_engine_get_seqno(engine));
 712
 713         spin_lock_irq(&b->rb_lock);
 714         for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) {
 715                 struct intel_wait *w = rb_entry(rb, typeof(*w), node);
 716
 717                 seq_printf(m, "Waiting (%s): %s [%d] on %x\n",
 718                            engine->name, w->tsk->comm, w->tsk->pid, w->seqno);
 719         }
 720         spin_unlock_irq(&b->rb_lock);
 721 }
 722
 723 static int i915_gem_seqno_info(struct seq_file *m, void *data)
 724 {
 725         struct drm_i915_private *dev_priv = node_to_i915(m->private);
 726         struct intel_engine_cs *engine;
 727         enum intel_engine_id id;
 728
 729         for_each_engine(engine, dev_priv, id)
 730                 i915_ring_seqno_info(m, engine);
 731
 732         return 0;
 733 }
 734
 735
 736 static int i915_interrupt_info(struct seq_file *m, void *data)
 737 {
 738         struct drm_i915_private *dev_priv = node_to_i915(m->private);
 739         struct intel_engine_cs *engine;
 740         enum intel_engine_id id;
 741         int i, pipe;
 742
 743         intel_runtime_pm_get(dev_priv);
 744
 745         if (IS_CHERRYVIEW(dev_priv)) {
 746                 seq_printf(m, "Master Interrupt Control:\t%08x\n",
 747                            I915_READ(GEN8_MASTER_IRQ));
 748
 749                 seq_printf(m, "Display IER:\t%08x\n",
 750                            I915_READ(VLV_IER));
 751                 seq_printf(m, "Display IIR:\t%08x\n",
 752                            I915_READ(VLV_IIR));
 753                 seq_printf(m, "Display IIR_RW:\t%08x\n",
 754                            I915_READ(VLV_IIR_RW));
 755                 seq_printf(m, "Display IMR:\t%08x\n",
 756                            I915_READ(VLV_IMR));
 757                 for_each_pipe(dev_priv, pipe) {
 758                         enum intel_display_power_domain power_domain;
 759
 760                         power_domain = POWER_DOMAIN_PIPE(pipe);
 761                         if (!intel_display_power_get_if_enabled(dev_priv,
 762                                                                 power_domain)) {
 763                                 seq_printf(m, "Pipe %c power disabled\n",
 764                                            pipe_name(pipe));
 765                                 continue;
 766                         }
 767
 768                         seq_printf(m, "Pipe %c stat:\t%08x\n",
 769                                    pipe_name(pipe),
 770                                    I915_READ(PIPESTAT(pipe)));
 771
 772                         intel_display_power_put(dev_priv, power_domain);
 773                 }
 774
 775                 intel_display_power_get(dev_priv, POWER_DOMAIN_INIT);
 776                 seq_printf(m, "Port hotplug:\t%08x\n",
 777                            I915_READ(PORT_HOTPLUG_EN));
 778                 seq_printf(m, "DPFLIPSTAT:\t%08x\n",
 779                            I915_READ(VLV_DPFLIPSTAT));
 780                 seq_printf(m, "DPINVGTT:\t%08x\n",
 781                            I915_READ(DPINVGTT));
 782                 intel_display_power_put(dev_priv, POWER_DOMAIN_INIT);
 783
 784                 for (i = 0; i < 4; i++) {
 785                         seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
 786                                    i, I915_READ(GEN8_GT_IMR(i)));
 787                         seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
 788                                    i, I915_READ(GEN8_GT_IIR(i)));
 789                         seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
 790                                    i, I915_READ(GEN8_GT_IER(i)));
 791                 }
 792
 793                 seq_printf(m, "PCU interrupt mask:\t%08x\n",
 794                            I915_READ(GEN8_PCU_IMR));
 795                 seq_printf(m, "PCU interrupt identity:\t%08x\n",
 796                            I915_READ(GEN8_PCU_IIR));
 797                 seq_printf(m, "PCU interrupt enable:\t%08x\n",
 798                            I915_READ(GEN8_PCU_IER));
 799         } else if (INTEL_GEN(dev_priv) >= 8) {
 800                 seq_printf(m, "Master Interrupt Control:\t%08x\n",
 801                            I915_READ(GEN8_MASTER_IRQ));
 802
 803                 for (i = 0; i < 4; i++) {
 804                         seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
 805                                    i, I915_READ(GEN8_GT_IMR(i)));
 806                         seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
 807                                    i, I915_READ(GEN8_GT_IIR(i)));
 808                         seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
 809                                    i, I915_READ(GEN8_GT_IER(i)));
 810                 }
 811
 812                 for_each_pipe(dev_priv, pipe) {
 813                         enum intel_display_power_domain power_domain;
 814
 815                         power_domain = POWER_DOMAIN_PIPE(pipe);
 816                         if (!intel_display_power_get_if_enabled(dev_priv,
 817                                                                 power_domain)) {
 818                                 seq_printf(m, "Pipe %c power disabled\n",
 819                                            pipe_name(pipe));
 820                                 continue;
 821                         }
 822                         seq_printf(m, "Pipe %c IMR:\t%08x\n",
 823                                    pipe_name(pipe),
 824                                    I915_READ(GEN8_DE_PIPE_IMR(pipe)));
 825                         seq_printf(m, "Pipe %c IIR:\t%08x\n",
 826                                    pipe_name(pipe),
 827                                    I915_READ(GEN8_DE_PIPE_IIR(pipe)));
 828                         seq_printf(m, "Pipe %c IER:\t%08x\n",
 829                                    pipe_name(pipe),
 830                                    I915_READ(GEN8_DE_PIPE_IER(pipe)));
 831
 832                         intel_display_power_put(dev_priv, power_domain);
 833                 }
 834
 835                 seq_printf(m, "Display Engine port interrupt mask:\t%08x\n",
 836                            I915_READ(GEN8_DE_PORT_IMR));
 837                 seq_printf(m, "Display Engine port interrupt identity:\t%08x\n",
 838                            I915_READ(GEN8_DE_PORT_IIR));
 839                 seq_printf(m, "Display Engine port interrupt enable:\t%08x\n",
 840                            I915_READ(GEN8_DE_PORT_IER));
 841
 842                 seq_printf(m, "Display Engine misc interrupt mask:\t%08x\n",
 843                            I915_READ(GEN8_DE_MISC_IMR));
 844                 seq_printf(m, "Display Engine misc interrupt identity:\t%08x\n",
 845                            I915_READ(GEN8_DE_MISC_IIR));
 846                 seq_printf(m, "Display Engine misc interrupt enable:\t%08x\n",
 847                            I915_READ(GEN8_DE_MISC_IER));
 848
 849                 seq_printf(m, "PCU interrupt mask:\t%08x\n",
 850                            I915_READ(GEN8_PCU_IMR));
 851                 seq_printf(m, "PCU interrupt identity:\t%08x\n",
 852                            I915_READ(GEN8_PCU_IIR));
 853                 seq_printf(m, "PCU interrupt enable:\t%08x\n",
 854                            I915_READ(GEN8_PCU_IER));
 855         } else if (IS_VALLEYVIEW(dev_priv)) {
 856                 seq_printf(m, "Display IER:\t%08x\n",
 857                            I915_READ(VLV_IER));
 858                 seq_printf(m, "Display IIR:\t%08x\n",
 859                            I915_READ(VLV_IIR));
 860                 seq_printf(m, "Display IIR_RW:\t%08x\n",
 861                            I915_READ(VLV_IIR_RW));
 862                 seq_printf(m, "Display IMR:\t%08x\n",
 863                            I915_READ(VLV_IMR));
 864                 for_each_pipe(dev_priv, pipe) {
 865                         enum intel_display_power_domain power_domain;
 866
 867                         power_domain = POWER_DOMAIN_PIPE(pipe);
 868                         if (!intel_display_power_get_if_enabled(dev_priv,
 869                                                                 power_domain)) {
 870                                 seq_printf(m, "Pipe %c power disabled\n",
 871                                            pipe_name(pipe));
 872                                 continue;
 873                         }
 874
 875                         seq_printf(m, "Pipe %c stat:\t%08x\n",
 876                                    pipe_name(pipe),
 877                                    I915_READ(PIPESTAT(pipe)));
 878                         intel_display_power_put(dev_priv, power_domain);
 879                 }
 880
 881                 seq_printf(m, "Master IER:\t%08x\n",
 882                            I915_READ(VLV_MASTER_IER));
 883
 884                 seq_printf(m, "Render IER:\t%08x\n",
 885                            I915_READ(GTIER));
 886                 seq_printf(m, "Render IIR:\t%08x\n",
 887                            I915_READ(GTIIR));
 888                 seq_printf(m, "Render IMR:\t%08x\n",
 889                            I915_READ(GTIMR));
 890
 891                 seq_printf(m, "PM IER:\t\t%08x\n",
 892                            I915_READ(GEN6_PMIER));
 893                 seq_printf(m, "PM IIR:\t\t%08x\n",
 894                            I915_READ(GEN6_PMIIR));
 895                 seq_printf(m, "PM IMR:\t\t%08x\n",
 896                            I915_READ(GEN6_PMIMR));
 897
 898                 seq_printf(m, "Port hotplug:\t%08x\n",
 899                            I915_READ(PORT_HOTPLUG_EN));
 900                 seq_printf(m, "DPFLIPSTAT:\t%08x\n",
 901                            I915_READ(VLV_DPFLIPSTAT));
 902                 seq_printf(m, "DPINVGTT:\t%08x\n",
 903                            I915_READ(DPINVGTT));
 904
 905         } else if (!HAS_PCH_SPLIT(dev_priv)) {
 906                 seq_printf(m, "Interrupt enable:    %08x\n",
 907                            I915_READ(IER));
 908                 seq_printf(m, "Interrupt identity:  %08x\n",
 909                            I915_READ(IIR));
 910                 seq_printf(m, "Interrupt mask:      %08x\n",
 911                            I915_READ(IMR));
 912                 for_each_pipe(dev_priv, pipe)
 913                         seq_printf(m, "Pipe %c stat:         %08x\n",
 914                                    pipe_name(pipe),
 915                                    I915_READ(PIPESTAT(pipe)));
 916         } else {
 917                 seq_printf(m, "North Display Interrupt enable:          %08x\n",
 918                            I915_READ(DEIER));
 919                 seq_printf(m, "North Display Interrupt identity:        %08x\n",
 920                            I915_READ(DEIIR));
 921                 seq_printf(m, "North Display Interrupt mask:            %08x\n",
 922                            I915_READ(DEIMR));
 923                 seq_printf(m, "South Display Interrupt enable:          %08x\n",
 924                            I915_READ(SDEIER));
 925                 seq_printf(m, "South Display Interrupt identity:        %08x\n",
 926                            I915_READ(SDEIIR));
 927                 seq_printf(m, "South Display Interrupt mask:            %08x\n",
 928                            I915_READ(SDEIMR));
 929                 seq_printf(m, "Graphics Interrupt enable:               %08x\n",
 930                            I915_READ(GTIER));
 931                 seq_printf(m, "Graphics Interrupt identity:             %08x\n",
 932                            I915_READ(GTIIR));
 933                 seq_printf(m, "Graphics Interrupt mask:         %08x\n",
 934                            I915_READ(GTIMR));
 935         }
 936         for_each_engine(engine, dev_priv, id) {
 937                 if (INTEL_GEN(dev_priv) >= 6) {
 938                         seq_printf(m,
 939                                    "Graphics Interrupt mask (%s):       %08x\n",
 940                                    engine->name, I915_READ_IMR(engine));
 941                 }
 942                 i915_ring_seqno_info(m, engine);
 943         }
 944         intel_runtime_pm_put(dev_priv);
 945
 946         return 0;
 947 }
 948
 949 static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
 950 {
 951         struct drm_i915_private *dev_priv = node_to_i915(m->private);
 952         struct drm_device *dev = &dev_priv->drm;
 953         int i, ret;
 954
 955         ret = mutex_lock_interruptible(&dev->struct_mutex);
 956         if (ret)
 957                 return ret;
 958
 959         seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
 960         for (i = 0; i < dev_priv->num_fence_regs; i++) {
 961                 struct i915_vma *vma = dev_priv->fence_regs[i].vma;
 962
 963                 seq_printf(m, "Fence %d, pin count = %d, object = ",
 964                            i, dev_priv->fence_regs[i].pin_count);
 965                 if (!vma)
 966                         seq_puts(m, "unused");
 967                 else
 968                         describe_obj(m, vma->obj);
 969                 seq_putc(m, '\n');
 970         }
 971
 972         mutex_unlock(&dev->struct_mutex);
 973         return 0;
 974 }
 975
 976 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
 977 static ssize_t gpu_state_read(struct file *file, char __user *ubuf,
 978                               size_t count, loff_t *pos)
 979 {
 980         struct i915_gpu_state *error = file->private_data;
 981         struct drm_i915_error_state_buf str;
 982         ssize_t ret;
 983         loff_t tmp;
 984
 985         if (!error)
 986                 return 0;
 987
 988         ret = i915_error_state_buf_init(&str, error->i915, count, *pos);
 989         if (ret)
 990                 return ret;
 991
 992         ret = i915_error_state_to_str(&str, error);
 993         if (ret)
 994                 goto out;
 995
 996         tmp = 0;
 997         ret = simple_read_from_buffer(ubuf, count, &tmp, str.buf, str.bytes);
 998         if (ret < 0)
 999                 goto out;
1000
1001         *pos = str.start + ret;
1002 out:
1003         i915_error_state_buf_release(&str);
1004         return ret;
1005 }
1006
1007 static int gpu_state_release(struct inode *inode, struct file *file)
1008 {
1009         i915_gpu_state_put(file->private_data);
1010         return 0;
1011 }
1012
1013 static int i915_gpu_info_open(struct inode *inode, struct file *file)
1014 {
1015         struct drm_i915_private *i915 = inode->i_private;
1016         struct i915_gpu_state *gpu;
1017
1018         intel_runtime_pm_get(i915);
1019         gpu = i915_capture_gpu_state(i915);
1020         intel_runtime_pm_put(i915);
1021         if (!gpu)
1022                 return -ENOMEM;
1023
1024         file->private_data = gpu;
1025         return 0;
1026 }
1027
1028 static const struct file_operations i915_gpu_info_fops = {
1029         .owner = THIS_MODULE,
1030         .open = i915_gpu_info_open,
1031         .read = gpu_state_read,
1032         .llseek = default_llseek,
1033         .release = gpu_state_release,
1034 };
1035
1036 static ssize_t
1037 i915_error_state_write(struct file *filp,
1038                        const char __user *ubuf,
1039                        size_t cnt,
1040                        loff_t *ppos)
1041 {
1042         struct i915_gpu_state *error = filp->private_data;
1043
1044         if (!error)
1045                 return 0;
1046
1047         DRM_DEBUG_DRIVER("Resetting error state\n");
1048         i915_reset_error_state(error->i915);
1049
1050         return cnt;
1051 }
1052
1053 static int i915_error_state_open(struct inode *inode, struct file *file)
1054 {
1055         file->private_data = i915_first_error_state(inode->i_private);
1056         return 0;
1057 }
1058
1059 static const struct file_operations i915_error_state_fops = {
1060         .owner = THIS_MODULE,
1061         .open = i915_error_state_open,
1062         .read = gpu_state_read,
1063         .write = i915_error_state_write,
1064         .llseek = default_llseek,
1065         .release = gpu_state_release,
1066 };
1067 #endif
1068
1069 static int
1070 i915_next_seqno_set(void *data, u64 val)
1071 {
1072         struct drm_i915_private *dev_priv = data;
1073         struct drm_device *dev = &dev_priv->drm;
1074         int ret;
1075
1076         ret = mutex_lock_interruptible(&dev->struct_mutex);
1077         if (ret)
1078                 return ret;
1079
1080         ret = i915_gem_set_global_seqno(dev, val);
1081         mutex_unlock(&dev->struct_mutex);
1082
1083         return ret;
1084 }
1085
1086 DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops,
1087                         NULL, i915_next_seqno_set,
1088                         "0x%llx\n");
1089
1090 static int i915_frequency_info(struct seq_file *m, void *unused)
1091 {
1092         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1093         int ret = 0;
1094
1095         intel_runtime_pm_get(dev_priv);
1096
1097         if (IS_GEN5(dev_priv)) {
1098                 u16 rgvswctl = I915_READ16(MEMSWCTL);
1099                 u16 rgvstat = I915_READ16(MEMSTAT_ILK);
1100
1101                 seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
1102                 seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
1103                 seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
1104                            MEMSTAT_VID_SHIFT);
1105                 seq_printf(m, "Current P-state: %d\n",
1106                            (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
1107         } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
1108                 u32 freq_sts;
1109
1110                 mutex_lock(&dev_priv->rps.hw_lock);
1111                 freq_sts = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
1112                 seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
1113                 seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
1114
1115                 seq_printf(m, "actual GPU freq: %d MHz\n",
1116                            intel_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff));
1117
1118                 seq_printf(m, "current GPU freq: %d MHz\n",
1119                            intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
1120
1121                 seq_printf(m, "max GPU freq: %d MHz\n",
1122                            intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
1123
1124                 seq_printf(m, "min GPU freq: %d MHz\n",
1125                            intel_gpu_freq(dev_priv, dev_priv->rps.min_freq));
1126
1127                 seq_printf(m, "idle GPU freq: %d MHz\n",
1128                            intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq));
1129
1130                 seq_printf(m,
1131                            "efficient (RPe) frequency: %d MHz\n",
1132                            intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
1133                 mutex_unlock(&dev_priv->rps.hw_lock);
1134         } else if (INTEL_GEN(dev_priv) >= 6) {
1135                 u32 rp_state_limits;
1136                 u32 gt_perf_status;
1137                 u32 rp_state_cap;
1138                 u32 rpmodectl, rpinclimit, rpdeclimit;
1139                 u32 rpstat, cagf, reqf;
1140                 u32 rpupei, rpcurup, rpprevup;
1141                 u32 rpdownei, rpcurdown, rpprevdown;
1142                 u32 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask;
1143                 int max_freq;
1144
1145                 rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
1146                 if (IS_GEN9_LP(dev_priv)) {
1147                         rp_state_cap = I915_READ(BXT_RP_STATE_CAP);
1148                         gt_perf_status = I915_READ(BXT_GT_PERF_STATUS);
1149                 } else {
1150                         rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
1151                         gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
1152                 }
1153
1154                 /* RPSTAT1 is in the GT power well */
1155                 intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
1156
1157                 reqf = I915_READ(GEN6_RPNSWREQ);
1158                 if (IS_GEN9(dev_priv))
1159                         reqf >>= 23;
1160                 else {
1161                         reqf &= ~GEN6_TURBO_DISABLE;
1162                         if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
1163                                 reqf >>= 24;
1164                         else
1165                                 reqf >>= 25;
1166                 }
1167                 reqf = intel_gpu_freq(dev_priv, reqf);
1168
1169                 rpmodectl = I915_READ(GEN6_RP_CONTROL);
1170                 rpinclimit = I915_READ(GEN6_RP_UP_THRESHOLD);
1171                 rpdeclimit = I915_READ(GEN6_RP_DOWN_THRESHOLD);
1172
1173                 rpstat = I915_READ(GEN6_RPSTAT1);
1174                 rpupei = I915_READ(GEN6_RP_CUR_UP_EI) & GEN6_CURICONT_MASK;
1175                 rpcurup = I915_READ(GEN6_RP_CUR_UP) & GEN6_CURBSYTAVG_MASK;
1176                 rpprevup = I915_READ(GEN6_RP_PREV_UP) & GEN6_CURBSYTAVG_MASK;
1177                 rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI) & GEN6_CURIAVG_MASK;
1178                 rpcurdown = I915_READ(GEN6_RP_CUR_DOWN) & GEN6_CURBSYTAVG_MASK;
1179                 rpprevdown = I915_READ(GEN6_RP_PREV_DOWN) & GEN6_CURBSYTAVG_MASK;
1180                 if (IS_GEN9(dev_priv))
1181                         cagf = (rpstat & GEN9_CAGF_MASK) >> GEN9_CAGF_SHIFT;
1182                 else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
1183                         cagf = (rpstat & HSW_CAGF_MASK) >> HSW_CAGF_SHIFT;
1184                 else
1185                         cagf = (rpstat & GEN6_CAGF_MASK) >> GEN6_CAGF_SHIFT;
1186                 cagf = intel_gpu_freq(dev_priv, cagf);
1187
1188                 intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
1189
1190                 if (IS_GEN6(dev_priv) || IS_GEN7(dev_priv)) {
1191                         pm_ier = I915_READ(GEN6_PMIER);
1192                         pm_imr = I915_READ(GEN6_PMIMR);
1193                         pm_isr = I915_READ(GEN6_PMISR);
1194                         pm_iir = I915_READ(GEN6_PMIIR);
1195                         pm_mask = I915_READ(GEN6_PMINTRMSK);
1196                 } else {
1197                         pm_ier = I915_READ(GEN8_GT_IER(2));
1198                         pm_imr = I915_READ(GEN8_GT_IMR(2));
1199                         pm_isr = I915_READ(GEN8_GT_ISR(2));
1200                         pm_iir = I915_READ(GEN8_GT_IIR(2));
1201                         pm_mask = I915_READ(GEN6_PMINTRMSK);
1202                 }
1203                 seq_printf(m, "PM IER=0x%08x IMR=0x%08x ISR=0x%08x IIR=0x%08x, MASK=0x%08x\n",
1204                            pm_ier, pm_imr, pm_isr, pm_iir, pm_mask);
1205                 seq_printf(m, "pm_intrmsk_mbz: 0x%08x\n",
1206                            dev_priv->rps.pm_intrmsk_mbz);
1207                 seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
1208                 seq_printf(m, "Render p-state ratio: %d\n",
1209                            (gt_perf_status & (IS_GEN9(dev_priv) ? 0x1ff00 : 0xff00)) >> 8);
1210                 seq_printf(m, "Render p-state VID: %d\n",
1211                            gt_perf_status & 0xff);
1212                 seq_printf(m, "Render p-state limit: %d\n",
1213                            rp_state_limits & 0xff);
1214                 seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
1215                 seq_printf(m, "RPMODECTL: 0x%08x\n", rpmodectl);
1216                 seq_printf(m, "RPINCLIMIT: 0x%08x\n", rpinclimit);
1217                 seq_printf(m, "RPDECLIMIT: 0x%08x\n", rpdeclimit);
1218                 seq_printf(m, "RPNSWREQ: %dMHz\n", reqf);
1219                 seq_printf(m, "CAGF: %dMHz\n", cagf);
1220                 seq_printf(m, "RP CUR UP EI: %d (%dus)\n",
1221                            rpupei, GT_PM_INTERVAL_TO_US(dev_priv, rpupei));
1222                 seq_printf(m, "RP CUR UP: %d (%dus)\n",
1223                            rpcurup, GT_PM_INTERVAL_TO_US(dev_priv, rpcurup));
1224                 seq_printf(m, "RP PREV UP: %d (%dus)\n",
1225                            rpprevup, GT_PM_INTERVAL_TO_US(dev_priv, rpprevup));
1226                 seq_printf(m, "Up threshold: %d%%\n",
1227                            dev_priv->rps.up_threshold);
1228
1229                 seq_printf(m, "RP CUR DOWN EI: %d (%dus)\n",
1230                            rpdownei, GT_PM_INTERVAL_TO_US(dev_priv, rpdownei));
1231                 seq_printf(m, "RP CUR DOWN: %d (%dus)\n",
1232                            rpcurdown, GT_PM_INTERVAL_TO_US(dev_priv, rpcurdown));
1233                 seq_printf(m, "RP PREV DOWN: %d (%dus)\n",
1234                            rpprevdown, GT_PM_INTERVAL_TO_US(dev_priv, rpprevdown));
1235                 seq_printf(m, "Down threshold: %d%%\n",
1236                            dev_priv->rps.down_threshold);
1237
1238                 max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 0 :
1239                             rp_state_cap >> 16) & 0xff;
1240                 max_freq *= (IS_GEN9_BC(dev_priv) ? GEN9_FREQ_SCALER : 1);
1241                 seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
1242                            intel_gpu_freq(dev_priv, max_freq));
1243
1244                 max_freq = (rp_state_cap & 0xff00) >> 8;
1245                 max_freq *= (IS_GEN9_BC(dev_priv) ? GEN9_FREQ_SCALER : 1);
1246                 seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
1247                            intel_gpu_freq(dev_priv, max_freq));
1248
1249                 max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 16 :
1250                             rp_state_cap >> 0) & 0xff;
1251                 max_freq *= (IS_GEN9_BC(dev_priv) ? GEN9_FREQ_SCALER : 1);
1252                 seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
1253                            intel_gpu_freq(dev_priv, max_freq));
1254                 seq_printf(m, "Max overclocked frequency: %dMHz\n",
1255                            intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
1256
1257                 seq_printf(m, "Current freq: %d MHz\n",
1258                            intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
1259                 seq_printf(m, "Actual freq: %d MHz\n", cagf);
1260                 seq_printf(m, "Idle freq: %d MHz\n",
1261                            intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq));
1262                 seq_printf(m, "Min freq: %d MHz\n",
1263                            intel_gpu_freq(dev_priv, dev_priv->rps.min_freq));
1264                 seq_printf(m, "Boost freq: %d MHz\n",
1265                            intel_gpu_freq(dev_priv, dev_priv->rps.boost_freq));
1266                 seq_printf(m, "Max freq: %d MHz\n",
1267                            intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
1268                 seq_printf(m,
1269                            "efficient (RPe) frequency: %d MHz\n",
1270                            intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
1271         } else {
1272                 seq_puts(m, "no P-state info available\n");
1273         }
1274
1275         seq_printf(m, "Current CD clock frequency: %d kHz\n", dev_priv->cdclk.hw.cdclk);
1276         seq_printf(m, "Max CD clock frequency: %d kHz\n", dev_priv->max_cdclk_freq);
1277         seq_printf(m, "Max pixel clock frequency: %d kHz\n", dev_priv->max_dotclk_freq);
1278
1279         intel_runtime_pm_put(dev_priv);
1280         return ret;
1281 }
1282
1283 static void i915_instdone_info(struct drm_i915_private *dev_priv,
1284                                struct seq_file *m,
1285                                struct intel_instdone *instdone)
1286 {
1287         int slice;
1288         int subslice;
1289
1290         seq_printf(m, "\t\tINSTDONE: 0x%08x\n",
1291                    instdone->instdone);
1292
1293         if (INTEL_GEN(dev_priv) <= 3)
1294                 return;
1295
1296         seq_printf(m, "\t\tSC_INSTDONE: 0x%08x\n",
1297                    instdone->slice_common);
1298
1299         if (INTEL_GEN(dev_priv) <= 6)
1300                 return;
1301
1302         for_each_instdone_slice_subslice(dev_priv, slice, subslice)
1303                 seq_printf(m, "\t\tSAMPLER_INSTDONE[%d][%d]: 0x%08x\n",
1304                            slice, subslice, instdone->sampler[slice][subslice]);
1305
1306         for_each_instdone_slice_subslice(dev_priv, slice, subslice)
1307                 seq_printf(m, "\t\tROW_INSTDONE[%d][%d]: 0x%08x\n",
1308                            slice, subslice, instdone->row[slice][subslice]);
1309 }
1310
1311 static int i915_hangcheck_info(struct seq_file *m, void *unused)
1312 {
1313         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1314         struct intel_engine_cs *engine;
1315         u64 acthd[I915_NUM_ENGINES];
1316         u32 seqno[I915_NUM_ENGINES];
1317         struct intel_instdone instdone;
1318         enum intel_engine_id id;
1319
1320         if (test_bit(I915_WEDGED, &dev_priv->gpu_error.flags))
1321                 seq_puts(m, "Wedged\n");
1322         if (test_bit(I915_RESET_BACKOFF, &dev_priv->gpu_error.flags))
1323                 seq_puts(m, "Reset in progress: struct_mutex backoff\n");
1324         if (test_bit(I915_RESET_HANDOFF, &dev_priv->gpu_error.flags))
1325                 seq_puts(m, "Reset in progress: reset handoff to waiter\n");
1326         if (waitqueue_active(&dev_priv->gpu_error.wait_queue))
1327                 seq_puts(m, "Waiter holding struct mutex\n");
1328         if (waitqueue_active(&dev_priv->gpu_error.reset_queue))
1329                 seq_puts(m, "struct_mutex blocked for reset\n");
1330
1331         if (!i915.enable_hangcheck) {
1332                 seq_puts(m, "Hangcheck disabled\n");
1333                 return 0;
1334         }
1335
1336         intel_runtime_pm_get(dev_priv);
1337
1338         for_each_engine(engine, dev_priv, id) {
1339                 acthd[id] = intel_engine_get_active_head(engine);
1340                 seqno[id] = intel_engine_get_seqno(engine);
1341         }
1342
1343         intel_engine_get_instdone(dev_priv->engine[RCS], &instdone);
1344
1345         intel_runtime_pm_put(dev_priv);
1346
1347         if (timer_pending(&dev_priv->gpu_error.hangcheck_work.timer))
1348                 seq_printf(m, "Hangcheck active, timer fires in %dms\n",
1349                            jiffies_to_msecs(dev_priv->gpu_error.hangcheck_work.timer.expires -
1350                                             jiffies));
1351         else if (delayed_work_pending(&dev_priv->gpu_error.hangcheck_work))
1352                 seq_puts(m, "Hangcheck active, work pending\n");
1353         else
1354                 seq_puts(m, "Hangcheck inactive\n");
1355
1356         seq_printf(m, "GT active? %s\n", yesno(dev_priv->gt.awake));
1357
1358         for_each_engine(engine, dev_priv, id) {
1359                 struct intel_breadcrumbs *b = &engine->breadcrumbs;
1360                 struct rb_node *rb;
1361
1362                 seq_printf(m, "%s:\n", engine->name);
1363                 seq_printf(m, "\tseqno = %x [current %x, last %x], inflight %d\n",
1364                            engine->hangcheck.seqno, seqno[id],
1365                            intel_engine_last_submit(engine),
1366                            engine->timeline->inflight_seqnos);
1367                 seq_printf(m, "\twaiters? %s, fake irq active? %s, stalled? %s\n",
1368                            yesno(intel_engine_has_waiter(engine)),
1369                            yesno(test_bit(engine->id,
1370                                           &dev_priv->gpu_error.missed_irq_rings)),
1371                            yesno(engine->hangcheck.stalled));
1372
1373                 spin_lock_irq(&b->rb_lock);
1374                 for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) {
1375                         struct intel_wait *w = rb_entry(rb, typeof(*w), node);
1376
1377                         seq_printf(m, "\t%s [%d] waiting for %x\n",
1378                                    w->tsk->comm, w->tsk->pid, w->seqno);
1379                 }
1380                 spin_unlock_irq(&b->rb_lock);
1381
1382                 seq_printf(m, "\tACTHD = 0x%08llx [current 0x%08llx]\n",
1383                            (long long)engine->hangcheck.acthd,
1384                            (long long)acthd[id]);
1385                 seq_printf(m, "\taction = %s(%d) %d ms ago\n",
1386                            hangcheck_action_to_str(engine->hangcheck.action),
1387                            engine->hangcheck.action,
1388                            jiffies_to_msecs(jiffies -
1389                                             engine->hangcheck.action_timestamp));
1390
1391                 if (engine->id == RCS) {
1392                         seq_puts(m, "\tinstdone read =\n");
1393
1394                         i915_instdone_info(dev_priv, m, &instdone);
1395
1396                         seq_puts(m, "\tinstdone accu =\n");
1397
1398                         i915_instdone_info(dev_priv, m,
1399                                            &engine->hangcheck.instdone);
1400                 }
1401         }
1402
1403         return 0;
1404 }
1405
1406 static int ironlake_drpc_info(struct seq_file *m)
1407 {
1408         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1409         u32 rgvmodectl, rstdbyctl;
1410         u16 crstandvid;
1411
1412         rgvmodectl = I915_READ(MEMMODECTL);
1413         rstdbyctl = I915_READ(RSTDBYCTL);
1414         crstandvid = I915_READ16(CRSTANDVID);
1415
1416         seq_printf(m, "HD boost: %s\n", yesno(rgvmodectl & MEMMODE_BOOST_EN));
1417         seq_printf(m, "Boost freq: %d\n",
1418                    (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
1419                    MEMMODE_BOOST_FREQ_SHIFT);
1420         seq_printf(m, "HW control enabled: %s\n",
1421                    yesno(rgvmodectl & MEMMODE_HWIDLE_EN));
1422         seq_printf(m, "SW control enabled: %s\n",
1423                    yesno(rgvmodectl & MEMMODE_SWMODE_EN));
1424         seq_printf(m, "Gated voltage change: %s\n",
1425                    yesno(rgvmodectl & MEMMODE_RCLK_GATE));
1426         seq_printf(m, "Starting frequency: P%d\n",
1427                    (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
1428         seq_printf(m, "Max P-state: P%d\n",
1429                    (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
1430         seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
1431         seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
1432         seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
1433         seq_printf(m, "Render standby enabled: %s\n",
1434                    yesno(!(rstdbyctl & RCX_SW_EXIT)));
1435         seq_puts(m, "Current RS state: ");
1436         switch (rstdbyctl & RSX_STATUS_MASK) {
1437         case RSX_STATUS_ON:
1438                 seq_puts(m, "on\n");
1439                 break;
1440         case RSX_STATUS_RC1:
1441                 seq_puts(m, "RC1\n");
1442                 break;
1443         case RSX_STATUS_RC1E:
1444                 seq_puts(m, "RC1E\n");
1445                 break;
1446         case RSX_STATUS_RS1:
1447                 seq_puts(m, "RS1\n");
1448                 break;
1449         case RSX_STATUS_RS2:
1450                 seq_puts(m, "RS2 (RC6)\n");
1451                 break;
1452         case RSX_STATUS_RS3:
1453                 seq_puts(m, "RC3 (RC6+)\n");
1454                 break;
1455         default:
1456                 seq_puts(m, "unknown\n");
1457                 break;
1458         }
1459
1460         return 0;
1461 }
1462
1463 static int i915_forcewake_domains(struct seq_file *m, void *data)
1464 {
1465         struct drm_i915_private *i915 = node_to_i915(m->private);
1466         struct intel_uncore_forcewake_domain *fw_domain;
1467         unsigned int tmp;
1468
1469         for_each_fw_domain(fw_domain, i915, tmp)
1470                 seq_printf(m, "%s.wake_count = %u\n",
1471                            intel_uncore_forcewake_domain_to_str(fw_domain->id),
1472                            READ_ONCE(fw_domain->wake_count));
1473
1474         return 0;
1475 }
1476
1477 static void print_rc6_res(struct seq_file *m,
1478                           const char *title,
1479                           const i915_reg_t reg)
1480 {
1481         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1482
1483         seq_printf(m, "%s %u (%llu us)\n",
1484                    title, I915_READ(reg),
1485                    intel_rc6_residency_us(dev_priv, reg));
1486 }
1487
1488 static int vlv_drpc_info(struct seq_file *m)
1489 {
1490         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1491         u32 rpmodectl1, rcctl1, pw_status;
1492
1493         pw_status = I915_READ(VLV_GTLC_PW_STATUS);
1494         rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
1495         rcctl1 = I915_READ(GEN6_RC_CONTROL);
1496
1497         seq_printf(m, "Video Turbo Mode: %s\n",
1498                    yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
1499         seq_printf(m, "Turbo enabled: %s\n",
1500                    yesno(rpmodectl1 & GEN6_RP_ENABLE));
1501         seq_printf(m, "HW control enabled: %s\n",
1502                    yesno(rpmodectl1 & GEN6_RP_ENABLE));
1503         seq_printf(m, "SW control enabled: %s\n",
1504                    yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
1505                           GEN6_RP_MEDIA_SW_MODE));
1506         seq_printf(m, "RC6 Enabled: %s\n",
1507                    yesno(rcctl1 & (GEN7_RC_CTL_TO_MODE |
1508                                         GEN6_RC_CTL_EI_MODE(1))));
1509         seq_printf(m, "Render Power Well: %s\n",
1510                    (pw_status & VLV_GTLC_PW_RENDER_STATUS_MASK) ? "Up" : "Down");
1511         seq_printf(m, "Media Power Well: %s\n",
1512                    (pw_status & VLV_GTLC_PW_MEDIA_STATUS_MASK) ? "Up" : "Down");
1513
1514         print_rc6_res(m, "Render RC6 residency since boot:", VLV_GT_RENDER_RC6);
1515         print_rc6_res(m, "Media RC6 residency since boot:", VLV_GT_MEDIA_RC6);
1516
1517         return i915_forcewake_domains(m, NULL);
1518 }
1519
1520 static int gen6_drpc_info(struct seq_file *m)
1521 {
1522         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1523         u32 rpmodectl1, gt_core_status, rcctl1, rc6vids = 0;
1524         u32 gen9_powergate_enable = 0, gen9_powergate_status = 0;
1525         unsigned forcewake_count;
1526         int count = 0;
1527
1528         forcewake_count = READ_ONCE(dev_priv->uncore.fw_domain[FW_DOMAIN_ID_RENDER].wake_count);
1529         if (forcewake_count) {
1530                 seq_puts(m, "RC information inaccurate because somebody "
1531                             "holds a forcewake reference \n");
1532         } else {
1533                 /* NB: we cannot use forcewake, else we read the wrong values */
1534                 while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
1535                         udelay(10);
1536                 seq_printf(m, "RC information accurate: %s\n", yesno(count < 51));
1537         }
1538
1539         gt_core_status = I915_READ_FW(GEN6_GT_CORE_STATUS);
1540         trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true);
1541
1542         rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
1543         rcctl1 = I915_READ(GEN6_RC_CONTROL);
1544         if (INTEL_GEN(dev_priv) >= 9) {
1545                 gen9_powergate_enable = I915_READ(GEN9_PG_ENABLE);
1546                 gen9_powergate_status = I915_READ(GEN9_PWRGT_DOMAIN_STATUS);
1547         }
1548
1549         mutex_lock(&dev_priv->rps.hw_lock);
1550         sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, &rc6vids);
1551         mutex_unlock(&dev_priv->rps.hw_lock);
1552
1553         seq_printf(m, "Video Turbo Mode: %s\n",
1554                    yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
1555         seq_printf(m, "HW control enabled: %s\n",
1556                    yesno(rpmodectl1 & GEN6_RP_ENABLE));
1557         seq_printf(m, "SW control enabled: %s\n",
1558                    yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
1559                           GEN6_RP_MEDIA_SW_MODE));
1560         seq_printf(m, "RC1e Enabled: %s\n",
1561                    yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
1562         seq_printf(m, "RC6 Enabled: %s\n",
1563                    yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
1564         if (INTEL_GEN(dev_priv) >= 9) {
1565                 seq_printf(m, "Render Well Gating Enabled: %s\n",
1566                         yesno(gen9_powergate_enable & GEN9_RENDER_PG_ENABLE));
1567                 seq_printf(m, "Media Well Gating Enabled: %s\n",
1568                         yesno(gen9_powergate_enable & GEN9_MEDIA_PG_ENABLE));
1569         }
1570         seq_printf(m, "Deep RC6 Enabled: %s\n",
1571                    yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
1572         seq_printf(m, "Deepest RC6 Enabled: %s\n",
1573                    yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
1574         seq_puts(m, "Current RC state: ");
1575         switch (gt_core_status & GEN6_RCn_MASK) {
1576         case GEN6_RC0:
1577                 if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
1578                         seq_puts(m, "Core Power Down\n");
1579                 else
1580                         seq_puts(m, "on\n");
1581                 break;
1582         case GEN6_RC3:
1583                 seq_puts(m, "RC3\n");
1584                 break;
1585         case GEN6_RC6:
1586                 seq_puts(m, "RC6\n");
1587                 break;
1588         case GEN6_RC7:
1589                 seq_puts(m, "RC7\n");
1590                 break;
1591         default:
1592                 seq_puts(m, "Unknown\n");
1593                 break;
1594         }
1595
1596         seq_printf(m, "Core Power Down: %s\n",
1597                    yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
1598         if (INTEL_GEN(dev_priv) >= 9) {
1599                 seq_printf(m, "Render Power Well: %s\n",
1600                         (gen9_powergate_status &
1601                          GEN9_PWRGT_RENDER_STATUS_MASK) ? "Up" : "Down");
1602                 seq_printf(m, "Media Power Well: %s\n",
1603                         (gen9_powergate_status &
1604                          GEN9_PWRGT_MEDIA_STATUS_MASK) ? "Up" : "Down");
1605         }
1606
1607         /* Not exactly sure what this is */
1608         print_rc6_res(m, "RC6 \"Locked to RPn\" residency since boot:",
1609                       GEN6_GT_GFX_RC6_LOCKED);
1610         print_rc6_res(m, "RC6 residency since boot:", GEN6_GT_GFX_RC6);
1611         print_rc6_res(m, "RC6+ residency since boot:", GEN6_GT_GFX_RC6p);
1612         print_rc6_res(m, "RC6++ residency since boot:", GEN6_GT_GFX_RC6pp);
1613
1614         seq_printf(m, "RC6   voltage: %dmV\n",
1615                    GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
1616         seq_printf(m, "RC6+  voltage: %dmV\n",
1617                    GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
1618         seq_printf(m, "RC6++ voltage: %dmV\n",
1619                    GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
1620         return i915_forcewake_domains(m, NULL);
1621 }
1622
1623 static int i915_drpc_info(struct seq_file *m, void *unused)
1624 {
1625         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1626         int err;
1627
1628         intel_runtime_pm_get(dev_priv);
1629
1630         if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
1631                 err = vlv_drpc_info(m);
1632         else if (INTEL_GEN(dev_priv) >= 6)
1633                 err = gen6_drpc_info(m);
1634         else
1635                 err = ironlake_drpc_info(m);
1636
1637         intel_runtime_pm_put(dev_priv);
1638
1639         return err;
1640 }
1641
1642 static int i915_frontbuffer_tracking(struct seq_file *m, void *unused)
1643 {
1644         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1645
1646         seq_printf(m, "FB tracking busy bits: 0x%08x\n",
1647                    dev_priv->fb_tracking.busy_bits);
1648
1649         seq_printf(m, "FB tracking flip bits: 0x%08x\n",
1650                    dev_priv->fb_tracking.flip_bits);
1651
1652         return 0;
1653 }
1654
1655 static int i915_fbc_status(struct seq_file *m, void *unused)
1656 {
1657         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1658
1659         if (!HAS_FBC(dev_priv)) {
1660                 seq_puts(m, "FBC unsupported on this chipset\n");
1661                 return 0;
1662         }
1663
1664         intel_runtime_pm_get(dev_priv);
1665         mutex_lock(&dev_priv->fbc.lock);
1666
1667         if (intel_fbc_is_active(dev_priv))
1668                 seq_puts(m, "FBC enabled\n");
1669         else
1670                 seq_printf(m, "FBC disabled: %s\n",
1671                            dev_priv->fbc.no_fbc_reason);
1672
1673         if (intel_fbc_is_active(dev_priv)) {
1674                 u32 mask;
1675
1676                 if (INTEL_GEN(dev_priv) >= 8)
1677                         mask = I915_READ(IVB_FBC_STATUS2) & BDW_FBC_COMP_SEG_MASK;
1678                 else if (INTEL_GEN(dev_priv) >= 7)
1679                         mask = I915_READ(IVB_FBC_STATUS2) & IVB_FBC_COMP_SEG_MASK;
1680                 else if (INTEL_GEN(dev_priv) >= 5)
1681                         mask = I915_READ(ILK_DPFC_STATUS) & ILK_DPFC_COMP_SEG_MASK;
1682                 else if (IS_G4X(dev_priv))
1683                         mask = I915_READ(DPFC_STATUS) & DPFC_COMP_SEG_MASK;
1684                 else
1685                         mask = I915_READ(FBC_STATUS) & (FBC_STAT_COMPRESSING |
1686                                                         FBC_STAT_COMPRESSED);
1687
1688                 seq_printf(m, "Compressing: %s\n", yesno(mask));
1689         }
1690
1691         mutex_unlock(&dev_priv->fbc.lock);
1692         intel_runtime_pm_put(dev_priv);
1693
1694         return 0;
1695 }
1696
1697 static int i915_fbc_false_color_get(void *data, u64 *val)
1698 {
1699         struct drm_i915_private *dev_priv = data;
1700
1701         if (INTEL_GEN(dev_priv) < 7 || !HAS_FBC(dev_priv))
1702                 return -ENODEV;
1703
1704         *val = dev_priv->fbc.false_color;
1705
1706         return 0;
1707 }
1708
1709 static int i915_fbc_false_color_set(void *data, u64 val)
1710 {
1711         struct drm_i915_private *dev_priv = data;
1712         u32 reg;
1713
1714         if (INTEL_GEN(dev_priv) < 7 || !HAS_FBC(dev_priv))
1715                 return -ENODEV;
1716
1717         mutex_lock(&dev_priv->fbc.lock);
1718
1719         reg = I915_READ(ILK_DPFC_CONTROL);
1720         dev_priv->fbc.false_color = val;
1721
1722         I915_WRITE(ILK_DPFC_CONTROL, val ?
1723                    (reg | FBC_CTL_FALSE_COLOR) :
1724                    (reg & ~FBC_CTL_FALSE_COLOR));
1725
1726         mutex_unlock(&dev_priv->fbc.lock);
1727         return 0;
1728 }
1729
1730 DEFINE_SIMPLE_ATTRIBUTE(i915_fbc_false_color_fops,
1731                         i915_fbc_false_color_get, i915_fbc_false_color_set,
1732                         "%llu\n");
1733
1734 static int i915_ips_status(struct seq_file *m, void *unused)
1735 {
1736         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1737
1738         if (!HAS_IPS(dev_priv)) {
1739                 seq_puts(m, "not supported\n");
1740                 return 0;
1741         }
1742
1743         intel_runtime_pm_get(dev_priv);
1744
1745         seq_printf(m, "Enabled by kernel parameter: %s\n",
1746                    yesno(i915.enable_ips));
1747
1748         if (INTEL_GEN(dev_priv) >= 8) {
1749                 seq_puts(m, "Currently: unknown\n");
1750         } else {
1751                 if (I915_READ(IPS_CTL) & IPS_ENABLE)
1752                         seq_puts(m, "Currently: enabled\n");
1753                 else
1754                         seq_puts(m, "Currently: disabled\n");
1755         }
1756
1757         intel_runtime_pm_put(dev_priv);
1758
1759         return 0;
1760 }
1761
1762 static int i915_sr_status(struct seq_file *m, void *unused)
1763 {
1764         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1765         bool sr_enabled = false;
1766
1767         intel_runtime_pm_get(dev_priv);
1768         intel_display_power_get(dev_priv, POWER_DOMAIN_INIT);
1769
1770         if (INTEL_GEN(dev_priv) >= 9)
1771                 /* no global SR status; inspect per-plane WM */;
1772         else if (HAS_PCH_SPLIT(dev_priv))
1773                 sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
1774         else if (IS_I965GM(dev_priv) || IS_G4X(dev_priv) ||
1775                  IS_I945G(dev_priv) || IS_I945GM(dev_priv))
1776                 sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
1777         else if (IS_I915GM(dev_priv))
1778                 sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
1779         else if (IS_PINEVIEW(dev_priv))
1780                 sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
1781         else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
1782                 sr_enabled = I915_READ(FW_BLC_SELF_VLV) & FW_CSPWRDWNEN;
1783
1784         intel_display_power_put(dev_priv, POWER_DOMAIN_INIT);
1785         intel_runtime_pm_put(dev_priv);
1786
1787         seq_printf(m, "self-refresh: %s\n", enableddisabled(sr_enabled));
1788
1789         return 0;
1790 }
1791
1792 static int i915_emon_status(struct seq_file *m, void *unused)
1793 {
1794         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1795         struct drm_device *dev = &dev_priv->drm;
1796         unsigned long temp, chipset, gfx;
1797         int ret;
1798
1799         if (!IS_GEN5(dev_priv))
1800                 return -ENODEV;
1801
1802         ret = mutex_lock_interruptible(&dev->struct_mutex);
1803         if (ret)
1804                 return ret;
1805
1806         temp = i915_mch_val(dev_priv);
1807         chipset = i915_chipset_val(dev_priv);
1808         gfx = i915_gfx_val(dev_priv);
1809         mutex_unlock(&dev->struct_mutex);
1810
1811         seq_printf(m, "GMCH temp: %ld\n", temp);
1812         seq_printf(m, "Chipset power: %ld\n", chipset);
1813         seq_printf(m, "GFX power: %ld\n", gfx);
1814         seq_printf(m, "Total power: %ld\n", chipset + gfx);
1815
1816         return 0;
1817 }
1818
1819 static int i915_ring_freq_table(struct seq_file *m, void *unused)
1820 {
1821         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1822         int ret = 0;
1823         int gpu_freq, ia_freq;
1824         unsigned int max_gpu_freq, min_gpu_freq;
1825
1826         if (!HAS_LLC(dev_priv)) {
1827                 seq_puts(m, "unsupported on this chipset\n");
1828                 return 0;
1829         }
1830
1831         intel_runtime_pm_get(dev_priv);
1832
1833         ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
1834         if (ret)
1835                 goto out;
1836
1837         if (IS_GEN9_BC(dev_priv)) {
1838                 /* Convert GT frequency to 50 HZ units */
1839                 min_gpu_freq =
1840                         dev_priv->rps.min_freq_softlimit / GEN9_FREQ_SCALER;
1841                 max_gpu_freq =
1842                         dev_priv->rps.max_freq_softlimit / GEN9_FREQ_SCALER;
1843         } else {
1844                 min_gpu_freq = dev_priv->rps.min_freq_softlimit;
1845                 max_gpu_freq = dev_priv->rps.max_freq_softlimit;
1846         }
1847
1848         seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
1849
1850         for (gpu_freq = min_gpu_freq; gpu_freq <= max_gpu_freq; gpu_freq++) {
1851                 ia_freq = gpu_freq;
1852                 sandybridge_pcode_read(dev_priv,
1853                                        GEN6_PCODE_READ_MIN_FREQ_TABLE,
1854                                        &ia_freq);
1855                 seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
1856                            intel_gpu_freq(dev_priv, (gpu_freq *
1857                                                      (IS_GEN9_BC(dev_priv) ?
1858                                                       GEN9_FREQ_SCALER : 1))),
1859                            ((ia_freq >> 0) & 0xff) * 100,
1860                            ((ia_freq >> 8) & 0xff) * 100);
1861         }
1862
1863         mutex_unlock(&dev_priv->rps.hw_lock);
1864
1865 out:
1866         intel_runtime_pm_put(dev_priv);
1867         return ret;
1868 }
1869
1870 static int i915_opregion(struct seq_file *m, void *unused)
1871 {
1872         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1873         struct drm_device *dev = &dev_priv->drm;
1874         struct intel_opregion *opregion = &dev_priv->opregion;
1875         int ret;
1876
1877         ret = mutex_lock_interruptible(&dev->struct_mutex);
1878         if (ret)
1879                 goto out;
1880
1881         if (opregion->header)
1882                 seq_write(m, opregion->header, OPREGION_SIZE);
1883
1884         mutex_unlock(&dev->struct_mutex);
1885
1886 out:
1887         return 0;
1888 }
1889
1890 static int i915_vbt(struct seq_file *m, void *unused)
1891 {
1892         struct intel_opregion *opregion = &node_to_i915(m->private)->opregion;
1893
1894         if (opregion->vbt)
1895                 seq_write(m, opregion->vbt, opregion->vbt_size);
1896
1897         return 0;
1898 }
1899
1900 static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
1901 {
1902         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1903         struct drm_device *dev = &dev_priv->drm;
1904         struct intel_framebuffer *fbdev_fb = NULL;
1905         struct drm_framebuffer *drm_fb;
1906         int ret;
1907
1908         ret = mutex_lock_interruptible(&dev->struct_mutex);
1909         if (ret)
1910                 return ret;
1911
1912 #ifdef CONFIG_DRM_FBDEV_EMULATION
1913         if (dev_priv->fbdev) {
1914                 fbdev_fb = to_intel_framebuffer(dev_priv->fbdev->helper.fb);
1915
1916                 seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ",
1917                            fbdev_fb->base.width,
1918                            fbdev_fb->base.height,
1919                            fbdev_fb->base.format->depth,
1920                            fbdev_fb->base.format->cpp[0] * 8,
1921                            fbdev_fb->base.modifier,
1922                            drm_framebuffer_read_refcount(&fbdev_fb->base));
1923                 describe_obj(m, fbdev_fb->obj);
1924                 seq_putc(m, '\n');
1925         }
1926 #endif
1927
1928         mutex_lock(&dev->mode_config.fb_lock);
1929         drm_for_each_fb(drm_fb, dev) {
1930                 struct intel_framebuffer *fb = to_intel_framebuffer(drm_fb);
1931                 if (fb == fbdev_fb)
1932                         continue;
1933
1934                 seq_printf(m, "user size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ",
1935                            fb->base.width,
1936                            fb->base.height,
1937                            fb->base.format->depth,
1938                            fb->base.format->cpp[0] * 8,
1939                            fb->base.modifier,
1940                            drm_framebuffer_read_refcount(&fb->base));
1941                 describe_obj(m, fb->obj);
1942                 seq_putc(m, '\n');
1943         }
1944         mutex_unlock(&dev->mode_config.fb_lock);
1945         mutex_unlock(&dev->struct_mutex);
1946
1947         return 0;
1948 }
1949
1950 static void describe_ctx_ring(struct seq_file *m, struct intel_ring *ring)
1951 {
1952         seq_printf(m, " (ringbuffer, space: %d, head: %u, tail: %u)",
1953                    ring->space, ring->head, ring->tail);
1954 }
1955
1956 static int i915_context_status(struct seq_file *m, void *unused)
1957 {
1958         struct drm_i915_private *dev_priv = node_to_i915(m->private);
1959         struct drm_device *dev = &dev_priv->drm;
1960         struct intel_engine_cs *engine;
1961         struct i915_gem_context *ctx;
1962         enum intel_engine_id id;
1963         int ret;
1964
1965         ret = mutex_lock_interruptible(&dev->struct_mutex);
1966         if (ret)
1967                 return ret;
1968
1969         list_for_each_entry(ctx, &dev_priv->context_list, link) {
1970                 seq_printf(m, "HW context %u ", ctx->hw_id);
1971                 if (ctx->pid) {
1972                         struct task_struct *task;
1973
1974                         task = get_pid_task(ctx->pid, PIDTYPE_PID);
1975                         if (task) {
1976                                 seq_printf(m, "(%s [%d]) ",
1977                                            task->comm, task->pid);
1978                                 put_task_struct(task);
1979                         }
1980                 } else if (IS_ERR(ctx->file_priv)) {
1981                         seq_puts(m, "(deleted) ");
1982                 } else {
1983                         seq_puts(m, "(kernel) ");
1984                 }
1985
1986                 seq_putc(m, ctx->remap_slice ? 'R' : 'r');
1987                 seq_putc(m, '\n');
1988
1989                 for_each_engine(engine, dev_priv, id) {
1990                         struct intel_context *ce = &ctx->engine[engine->id];
1991
1992                         seq_printf(m, "%s: ", engine->name);
1993                         seq_putc(m, ce->initialised ? 'I' : 'i');
1994                         if (ce->state)
1995                                 describe_obj(m, ce->state->obj);
1996                         if (ce->ring)
1997                                 describe_ctx_ring(m, ce->ring);
1998                         seq_putc(m, '\n');
1999                 }
2000
2001                 seq_printf(m,
2002                            "\tvma hashtable size=%u (actual %lu), count=%u\n",
2003                            ctx->vma_lut.ht_size,
2004                            BIT(ctx->vma_lut.ht_bits),
2005                            ctx->vma_lut.ht_count);
2006
2007                 seq_putc(m, '\n');
2008         }
2009
2010         mutex_unlock(&dev->struct_mutex);
2011
2012         return 0;
2013 }
2014
2015 static void i915_dump_lrc_obj(struct seq_file *m,
2016                               struct i915_gem_context *ctx,
2017                               struct intel_engine_cs *engine)
2018 {
2019         struct i915_vma *vma = ctx->engine[engine->id].state;
2020         struct page *page;
2021         int j;
2022
2023         seq_printf(m, "CONTEXT: %s %u\n", engine->name, ctx->hw_id);
2024
2025         if (!vma) {
2026                 seq_puts(m, "\tFake context\n");
2027                 return;
2028         }
2029
2030         if (vma->flags & I915_VMA_GLOBAL_BIND)
2031                 seq_printf(m, "\tBound in GGTT at 0x%08x\n",
2032                            i915_ggtt_offset(vma));
2033
2034         if (i915_gem_object_pin_pages(vma->obj)) {
2035                 seq_puts(m, "\tFailed to get pages for context object\n\n");
2036                 return;
2037         }
2038
2039         page = i915_gem_object_get_page(vma->obj, LRC_STATE_PN);
2040         if (page) {
2041                 u32 *reg_state = kmap_atomic(page);
2042
2043                 for (j = 0; j < 0x600 / sizeof(u32) / 4; j += 4) {
2044                         seq_printf(m,
2045                                    "\t[0x%04x] 0x%08x 0x%08x 0x%08x 0x%08x\n",
2046                                    j * 4,
2047                                    reg_state[j], reg_state[j + 1],
2048                                    reg_state[j + 2], reg_state[j + 3]);
2049                 }
2050                 kunmap_atomic(reg_state);
2051         }
2052
2053         i915_gem_object_unpin_pages(vma->obj);
2054         seq_putc(m, '\n');
2055 }
2056
2057 static int i915_dump_lrc(struct seq_file *m, void *unused)
2058 {
2059         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2060         struct drm_device *dev = &dev_priv->drm;
2061         struct intel_engine_cs *engine;
2062         struct i915_gem_context *ctx;
2063         enum intel_engine_id id;
2064         int ret;
2065
2066         if (!i915.enable_execlists) {
2067                 seq_printf(m, "Logical Ring Contexts are disabled\n");
2068                 return 0;
2069         }
2070
2071         ret = mutex_lock_interruptible(&dev->struct_mutex);
2072         if (ret)
2073                 return ret;
2074
2075         list_for_each_entry(ctx, &dev_priv->context_list, link)
2076                 for_each_engine(engine, dev_priv, id)
2077                         i915_dump_lrc_obj(m, ctx, engine);
2078
2079         mutex_unlock(&dev->struct_mutex);
2080
2081         return 0;
2082 }
2083
2084 static const char *swizzle_string(unsigned swizzle)
2085 {
2086         switch (swizzle) {
2087         case I915_BIT_6_SWIZZLE_NONE:
2088                 return "none";
2089         case I915_BIT_6_SWIZZLE_9:
2090                 return "bit9";
2091         case I915_BIT_6_SWIZZLE_9_10:
2092                 return "bit9/bit10";
2093         case I915_BIT_6_SWIZZLE_9_11:
2094                 return "bit9/bit11";
2095         case I915_BIT_6_SWIZZLE_9_10_11:
2096                 return "bit9/bit10/bit11";
2097         case I915_BIT_6_SWIZZLE_9_17:
2098                 return "bit9/bit17";
2099         case I915_BIT_6_SWIZZLE_9_10_17:
2100                 return "bit9/bit10/bit17";
2101         case I915_BIT_6_SWIZZLE_UNKNOWN:
2102                 return "unknown";
2103         }
2104
2105         return "bug";
2106 }
2107
2108 static int i915_swizzle_info(struct seq_file *m, void *data)
2109 {
2110         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2111
2112         intel_runtime_pm_get(dev_priv);
2113
2114         seq_printf(m, "bit6 swizzle for X-tiling = %s\n",
2115                    swizzle_string(dev_priv->mm.bit_6_swizzle_x));
2116         seq_printf(m, "bit6 swizzle for Y-tiling = %s\n",
2117                    swizzle_string(dev_priv->mm.bit_6_swizzle_y));
2118
2119         if (IS_GEN3(dev_priv) || IS_GEN4(dev_priv)) {
2120                 seq_printf(m, "DDC = 0x%08x\n",
2121                            I915_READ(DCC));
2122                 seq_printf(m, "DDC2 = 0x%08x\n",
2123                            I915_READ(DCC2));
2124                 seq_printf(m, "C0DRB3 = 0x%04x\n",
2125                            I915_READ16(C0DRB3));
2126                 seq_printf(m, "C1DRB3 = 0x%04x\n",
2127                            I915_READ16(C1DRB3));
2128         } else if (INTEL_GEN(dev_priv) >= 6) {
2129                 seq_printf(m, "MAD_DIMM_C0 = 0x%08x\n",
2130                            I915_READ(MAD_DIMM_C0));
2131                 seq_printf(m, "MAD_DIMM_C1 = 0x%08x\n",
2132                            I915_READ(MAD_DIMM_C1));
2133                 seq_printf(m, "MAD_DIMM_C2 = 0x%08x\n",
2134                            I915_READ(MAD_DIMM_C2));
2135                 seq_printf(m, "TILECTL = 0x%08x\n",
2136                            I915_READ(TILECTL));
2137                 if (INTEL_GEN(dev_priv) >= 8)
2138                         seq_printf(m, "GAMTARBMODE = 0x%08x\n",
2139                                    I915_READ(GAMTARBMODE));
2140                 else
2141                         seq_printf(m, "ARB_MODE = 0x%08x\n",
2142                                    I915_READ(ARB_MODE));
2143                 seq_printf(m, "DISP_ARB_CTL = 0x%08x\n",
2144                            I915_READ(DISP_ARB_CTL));
2145         }
2146
2147         if (dev_priv->quirks & QUIRK_PIN_SWIZZLED_PAGES)
2148                 seq_puts(m, "L-shaped memory detected\n");
2149
2150         intel_runtime_pm_put(dev_priv);
2151
2152         return 0;
2153 }
2154
2155 static int per_file_ctx(int id, void *ptr, void *data)
2156 {
2157         struct i915_gem_context *ctx = ptr;
2158         struct seq_file *m = data;
2159         struct i915_hw_ppgtt *ppgtt = ctx->ppgtt;
2160
2161         if (!ppgtt) {
2162                 seq_printf(m, "  no ppgtt for context %d\n",
2163                            ctx->user_handle);
2164                 return 0;
2165         }
2166
2167         if (i915_gem_context_is_default(ctx))
2168                 seq_puts(m, "  default context:\n");
2169         else
2170                 seq_printf(m, "  context %d:\n", ctx->user_handle);
2171         ppgtt->debug_dump(ppgtt, m);
2172
2173         return 0;
2174 }
2175
2176 static void gen8_ppgtt_info(struct seq_file *m,
2177                             struct drm_i915_private *dev_priv)
2178 {
2179         struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
2180         struct intel_engine_cs *engine;
2181         enum intel_engine_id id;
2182         int i;
2183
2184         if (!ppgtt)
2185                 return;
2186
2187         for_each_engine(engine, dev_priv, id) {
2188                 seq_printf(m, "%s\n", engine->name);
2189                 for (i = 0; i < 4; i++) {
2190                         u64 pdp = I915_READ(GEN8_RING_PDP_UDW(engine, i));
2191                         pdp <<= 32;
2192                         pdp |= I915_READ(GEN8_RING_PDP_LDW(engine, i));
2193                         seq_printf(m, "\tPDP%d 0x%016llx\n", i, pdp);
2194                 }
2195         }
2196 }
2197
2198 static void gen6_ppgtt_info(struct seq_file *m,
2199                             struct drm_i915_private *dev_priv)
2200 {
2201         struct intel_engine_cs *engine;
2202         enum intel_engine_id id;
2203
2204         if (IS_GEN6(dev_priv))
2205                 seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(GFX_MODE));
2206
2207         for_each_engine(engine, dev_priv, id) {
2208                 seq_printf(m, "%s\n", engine->name);
2209                 if (IS_GEN7(dev_priv))
2210                         seq_printf(m, "GFX_MODE: 0x%08x\n",
2211                                    I915_READ(RING_MODE_GEN7(engine)));
2212                 seq_printf(m, "PP_DIR_BASE: 0x%08x\n",
2213                            I915_READ(RING_PP_DIR_BASE(engine)));
2214                 seq_printf(m, "PP_DIR_BASE_READ: 0x%08x\n",
2215                            I915_READ(RING_PP_DIR_BASE_READ(engine)));
2216                 seq_printf(m, "PP_DIR_DCLV: 0x%08x\n",
2217                            I915_READ(RING_PP_DIR_DCLV(engine)));
2218         }
2219         if (dev_priv->mm.aliasing_ppgtt) {
2220                 struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
2221
2222                 seq_puts(m, "aliasing PPGTT:\n");
2223                 seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd.base.ggtt_offset);
2224
2225                 ppgtt->debug_dump(ppgtt, m);
2226         }
2227
2228         seq_printf(m, "ECOCHK: 0x%08x\n", I915_READ(GAM_ECOCHK));
2229 }
2230
2231 static int i915_ppgtt_info(struct seq_file *m, void *data)
2232 {
2233         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2234         struct drm_device *dev = &dev_priv->drm;
2235         struct drm_file *file;
2236         int ret;
2237
2238         mutex_lock(&dev->filelist_mutex);
2239         ret = mutex_lock_interruptible(&dev->struct_mutex);
2240         if (ret)
2241                 goto out_unlock;
2242
2243         intel_runtime_pm_get(dev_priv);
2244
2245         if (INTEL_GEN(dev_priv) >= 8)
2246                 gen8_ppgtt_info(m, dev_priv);
2247         else if (INTEL_GEN(dev_priv) >= 6)
2248                 gen6_ppgtt_info(m, dev_priv);
2249
2250         list_for_each_entry_reverse(file, &dev->filelist, lhead) {
2251                 struct drm_i915_file_private *file_priv = file->driver_priv;
2252                 struct task_struct *task;
2253
2254                 task = get_pid_task(file->pid, PIDTYPE_PID);
2255                 if (!task) {
2256                         ret = -ESRCH;
2257                         goto out_rpm;
2258                 }
2259                 seq_printf(m, "\nproc: %s\n", task->comm);
2260                 put_task_struct(task);
2261                 idr_for_each(&file_priv->context_idr, per_file_ctx,
2262                              (void *)(unsigned long)m);
2263         }
2264
2265 out_rpm:
2266         intel_runtime_pm_put(dev_priv);
2267         mutex_unlock(&dev->struct_mutex);
2268 out_unlock:
2269         mutex_unlock(&dev->filelist_mutex);
2270         return ret;
2271 }
2272
2273 static int count_irq_waiters(struct drm_i915_private *i915)
2274 {
2275         struct intel_engine_cs *engine;
2276         enum intel_engine_id id;
2277         int count = 0;
2278
2279         for_each_engine(engine, i915, id)
2280                 count += intel_engine_has_waiter(engine);
2281
2282         return count;
2283 }
2284
2285 static const char *rps_power_to_str(unsigned int power)
2286 {
2287         static const char * const strings[] = {
2288                 [LOW_POWER] = "low power",
2289                 [BETWEEN] = "mixed",
2290                 [HIGH_POWER] = "high power",
2291         };
2292
2293         if (power >= ARRAY_SIZE(strings) || !strings[power])
2294                 return "unknown";
2295
2296         return strings[power];
2297 }
2298
2299 static int i915_rps_boost_info(struct seq_file *m, void *data)
2300 {
2301         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2302         struct drm_device *dev = &dev_priv->drm;
2303         struct drm_file *file;
2304
2305         seq_printf(m, "RPS enabled? %d\n", dev_priv->rps.enabled);
2306         seq_printf(m, "GPU busy? %s [%d requests]\n",
2307                    yesno(dev_priv->gt.awake), dev_priv->gt.active_requests);
2308         seq_printf(m, "CPU waiting? %d\n", count_irq_waiters(dev_priv));
2309         seq_printf(m, "Frequency requested %d\n",
2310                    intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
2311         seq_printf(m, "  min hard:%d, soft:%d; max soft:%d, hard:%d\n",
2312                    intel_gpu_freq(dev_priv, dev_priv->rps.min_freq),
2313                    intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit),
2314                    intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit),
2315                    intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
2316         seq_printf(m, "  idle:%d, efficient:%d, boost:%d\n",
2317                    intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq),
2318                    intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq),
2319                    intel_gpu_freq(dev_priv, dev_priv->rps.boost_freq));
2320
2321         mutex_lock(&dev->filelist_mutex);
2322         spin_lock(&dev_priv->rps.client_lock);
2323         list_for_each_entry_reverse(file, &dev->filelist, lhead) {
2324                 struct drm_i915_file_private *file_priv = file->driver_priv;
2325                 struct task_struct *task;
2326
2327                 rcu_read_lock();
2328                 task = pid_task(file->pid, PIDTYPE_PID);
2329                 seq_printf(m, "%s [%d]: %d boosts%s\n",
2330                            task ? task->comm : "<unknown>",
2331                            task ? task->pid : -1,
2332                            file_priv->rps.boosts,
2333                            list_empty(&file_priv->rps.link) ? "" : ", active");
2334                 rcu_read_unlock();
2335         }
2336         seq_printf(m, "Kernel (anonymous) boosts: %d\n", dev_priv->rps.boosts);
2337         spin_unlock(&dev_priv->rps.client_lock);
2338         mutex_unlock(&dev->filelist_mutex);
2339
2340         if (INTEL_GEN(dev_priv) >= 6 &&
2341             dev_priv->rps.enabled &&
2342             dev_priv->gt.active_requests) {
2343                 u32 rpup, rpupei;
2344                 u32 rpdown, rpdownei;
2345
2346                 intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
2347                 rpup = I915_READ_FW(GEN6_RP_CUR_UP) & GEN6_RP_EI_MASK;
2348                 rpupei = I915_READ_FW(GEN6_RP_CUR_UP_EI) & GEN6_RP_EI_MASK;
2349                 rpdown = I915_READ_FW(GEN6_RP_CUR_DOWN) & GEN6_RP_EI_MASK;
2350                 rpdownei = I915_READ_FW(GEN6_RP_CUR_DOWN_EI) & GEN6_RP_EI_MASK;
2351                 intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
2352
2353                 seq_printf(m, "\nRPS Autotuning (current \"%s\" window):\n",
2354                            rps_power_to_str(dev_priv->rps.power));
2355                 seq_printf(m, "  Avg. up: %d%% [above threshold? %d%%]\n",
2356                            rpup && rpupei ? 100 * rpup / rpupei : 0,
2357                            dev_priv->rps.up_threshold);
2358                 seq_printf(m, "  Avg. down: %d%% [below threshold? %d%%]\n",
2359                            rpdown && rpdownei ? 100 * rpdown / rpdownei : 0,
2360                            dev_priv->rps.down_threshold);
2361         } else {
2362                 seq_puts(m, "\nRPS Autotuning inactive\n");
2363         }
2364
2365         return 0;
2366 }
2367
2368 static int i915_llc(struct seq_file *m, void *data)
2369 {
2370         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2371         const bool edram = INTEL_GEN(dev_priv) > 8;
2372
2373         seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(dev_priv)));
2374         seq_printf(m, "%s: %lluMB\n", edram ? "eDRAM" : "eLLC",
2375                    intel_uncore_edram_size(dev_priv)/1024/1024);
2376
2377         return 0;
2378 }
2379
2380 static int i915_huc_load_status_info(struct seq_file *m, void *data)
2381 {
2382         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2383         struct intel_uc_fw *huc_fw = &dev_priv->huc.fw;
2384
2385         if (!HAS_HUC_UCODE(dev_priv))
2386                 return 0;
2387
2388         seq_puts(m, "HuC firmware status:\n");
2389         seq_printf(m, "\tpath: %s\n", huc_fw->path);
2390         seq_printf(m, "\tfetch: %s\n",
2391                 intel_uc_fw_status_repr(huc_fw->fetch_status));
2392         seq_printf(m, "\tload: %s\n",
2393                 intel_uc_fw_status_repr(huc_fw->load_status));
2394         seq_printf(m, "\tversion wanted: %d.%d\n",
2395                 huc_fw->major_ver_wanted, huc_fw->minor_ver_wanted);
2396         seq_printf(m, "\tversion found: %d.%d\n",
2397                 huc_fw->major_ver_found, huc_fw->minor_ver_found);
2398         seq_printf(m, "\theader: offset is %d; size = %d\n",
2399                 huc_fw->header_offset, huc_fw->header_size);
2400         seq_printf(m, "\tuCode: offset is %d; size = %d\n",
2401                 huc_fw->ucode_offset, huc_fw->ucode_size);
2402         seq_printf(m, "\tRSA: offset is %d; size = %d\n",
2403                 huc_fw->rsa_offset, huc_fw->rsa_size);
2404
2405         intel_runtime_pm_get(dev_priv);
2406         seq_printf(m, "\nHuC status 0x%08x:\n", I915_READ(HUC_STATUS2));
2407         intel_runtime_pm_put(dev_priv);
2408
2409         return 0;
2410 }
2411
2412 static int i915_guc_load_status_info(struct seq_file *m, void *data)
2413 {
2414         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2415         struct intel_uc_fw *guc_fw = &dev_priv->guc.fw;
2416         u32 tmp, i;
2417
2418         if (!HAS_GUC_UCODE(dev_priv))
2419                 return 0;
2420
2421         seq_printf(m, "GuC firmware status:\n");
2422         seq_printf(m, "\tpath: %s\n",
2423                 guc_fw->path);
2424         seq_printf(m, "\tfetch: %s\n",
2425                 intel_uc_fw_status_repr(guc_fw->fetch_status));
2426         seq_printf(m, "\tload: %s\n",
2427                 intel_uc_fw_status_repr(guc_fw->load_status));
2428         seq_printf(m, "\tversion wanted: %d.%d\n",
2429                 guc_fw->major_ver_wanted, guc_fw->minor_ver_wanted);
2430         seq_printf(m, "\tversion found: %d.%d\n",
2431                 guc_fw->major_ver_found, guc_fw->minor_ver_found);
2432         seq_printf(m, "\theader: offset is %d; size = %d\n",
2433                 guc_fw->header_offset, guc_fw->header_size);
2434         seq_printf(m, "\tuCode: offset is %d; size = %d\n",
2435                 guc_fw->ucode_offset, guc_fw->ucode_size);
2436         seq_printf(m, "\tRSA: offset is %d; size = %d\n",
2437                 guc_fw->rsa_offset, guc_fw->rsa_size);
2438
2439         intel_runtime_pm_get(dev_priv);
2440
2441         tmp = I915_READ(GUC_STATUS);
2442
2443         seq_printf(m, "\nGuC status 0x%08x:\n", tmp);
2444         seq_printf(m, "\tBootrom status = 0x%x\n",
2445                 (tmp & GS_BOOTROM_MASK) >> GS_BOOTROM_SHIFT);
2446         seq_printf(m, "\tuKernel status = 0x%x\n",
2447                 (tmp & GS_UKERNEL_MASK) >> GS_UKERNEL_SHIFT);
2448         seq_printf(m, "\tMIA Core status = 0x%x\n",
2449                 (tmp & GS_MIA_MASK) >> GS_MIA_SHIFT);
2450         seq_puts(m, "\nScratch registers:\n");
2451         for (i = 0; i < 16; i++)
2452                 seq_printf(m, "\t%2d: \t0x%x\n", i, I915_READ(SOFT_SCRATCH(i)));
2453
2454         intel_runtime_pm_put(dev_priv);
2455
2456         return 0;
2457 }
2458
2459 static void i915_guc_log_info(struct seq_file *m,
2460                               struct drm_i915_private *dev_priv)
2461 {
2462         struct intel_guc *guc = &dev_priv->guc;
2463
2464         seq_puts(m, "\nGuC logging stats:\n");
2465
2466         seq_printf(m, "\tISR:   flush count %10u, overflow count %10u\n",
2467                    guc->log.flush_count[GUC_ISR_LOG_BUFFER],
2468                    guc->log.total_overflow_count[GUC_ISR_LOG_BUFFER]);
2469
2470         seq_printf(m, "\tDPC:   flush count %10u, overflow count %10u\n",
2471                    guc->log.flush_count[GUC_DPC_LOG_BUFFER],
2472                    guc->log.total_overflow_count[GUC_DPC_LOG_BUFFER]);
2473
2474         seq_printf(m, "\tCRASH: flush count %10u, overflow count %10u\n",
2475                    guc->log.flush_count[GUC_CRASH_DUMP_LOG_BUFFER],
2476                    guc->log.total_overflow_count[GUC_CRASH_DUMP_LOG_BUFFER]);
2477
2478         seq_printf(m, "\tTotal flush interrupt count: %u\n",
2479                    guc->log.flush_interrupt_count);
2480
2481         seq_printf(m, "\tCapture miss count: %u\n",
2482                    guc->log.capture_miss_count);
2483 }
2484
2485 static void i915_guc_client_info(struct seq_file *m,
2486                                  struct drm_i915_private *dev_priv,
2487                                  struct i915_guc_client *client)
2488 {
2489         struct intel_engine_cs *engine;
2490         enum intel_engine_id id;
2491         uint64_t tot = 0;
2492
2493         seq_printf(m, "\tPriority %d, GuC stage index: %u, PD offset 0x%x\n",
2494                 client->priority, client->stage_id, client->proc_desc_offset);
2495         seq_printf(m, "\tDoorbell id %d, offset: 0x%lx, cookie 0x%x\n",
2496                 client->doorbell_id, client->doorbell_offset, client->doorbell_cookie);
2497         seq_printf(m, "\tWQ size %d, offset: 0x%x, tail %d\n",
2498                 client->wq_size, client->wq_offset, client->wq_tail);
2499
2500         seq_printf(m, "\tWork queue full: %u\n", client->no_wq_space);
2501
2502         for_each_engine(engine, dev_priv, id) {
2503                 u64 submissions = client->submissions[id];
2504                 tot += submissions;
2505                 seq_printf(m, "\tSubmissions: %llu %s\n",
2506                                 submissions, engine->name);
2507         }
2508         seq_printf(m, "\tTotal: %llu\n", tot);
2509 }
2510
2511 static bool check_guc_submission(struct seq_file *m)
2512 {
2513         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2514         const struct intel_guc *guc = &dev_priv->guc;
2515
2516         if (!guc->execbuf_client) {
2517                 seq_printf(m, "GuC submission %s\n",
2518                            HAS_GUC_SCHED(dev_priv) ?
2519                            "disabled" :
2520                            "not supported");
2521                 return false;
2522         }
2523
2524         return true;
2525 }
2526
2527 static int i915_guc_info(struct seq_file *m, void *data)
2528 {
2529         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2530         const struct intel_guc *guc = &dev_priv->guc;
2531
2532         if (!check_guc_submission(m))
2533                 return 0;
2534
2535         seq_printf(m, "Doorbell map:\n");
2536         seq_printf(m, "\t%*pb\n", GUC_NUM_DOORBELLS, guc->doorbell_bitmap);
2537         seq_printf(m, "Doorbell next cacheline: 0x%x\n\n", guc->db_cacheline);
2538
2539         seq_printf(m, "\nGuC execbuf client @ %p:\n", guc->execbuf_client);
2540         i915_guc_client_info(m, dev_priv, guc->execbuf_client);
2541
2542         i915_guc_log_info(m, dev_priv);
2543
2544         /* Add more as required ... */
2545
2546         return 0;
2547 }
2548
2549 static int i915_guc_stage_pool(struct seq_file *m, void *data)
2550 {
2551         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2552         const struct intel_guc *guc = &dev_priv->guc;
2553         struct guc_stage_desc *desc = guc->stage_desc_pool_vaddr;
2554         struct i915_guc_client *client = guc->execbuf_client;
2555         unsigned int tmp;
2556         int index;
2557
2558         if (!check_guc_submission(m))
2559                 return 0;
2560
2561         for (index = 0; index < GUC_MAX_STAGE_DESCRIPTORS; index++, desc++) {
2562                 struct intel_engine_cs *engine;
2563
2564                 if (!(desc->attribute & GUC_STAGE_DESC_ATTR_ACTIVE))
2565                         continue;
2566
2567                 seq_printf(m, "GuC stage descriptor %u:\n", index);
2568                 seq_printf(m, "\tIndex: %u\n", desc->stage_id);
2569                 seq_printf(m, "\tAttribute: 0x%x\n", desc->attribute);
2570                 seq_printf(m, "\tPriority: %d\n", desc->priority);
2571                 seq_printf(m, "\tDoorbell id: %d\n", desc->db_id);
2572                 seq_printf(m, "\tEngines used: 0x%x\n",
2573                            desc->engines_used);
2574                 seq_printf(m, "\tDoorbell trigger phy: 0x%llx, cpu: 0x%llx, uK: 0x%x\n",
2575                            desc->db_trigger_phy,
2576                            desc->db_trigger_cpu,
2577                            desc->db_trigger_uk);
2578                 seq_printf(m, "\tProcess descriptor: 0x%x\n",
2579                            desc->process_desc);
2580                 seq_printf(m, "\tWorkqueue address: 0x%x, size: 0x%x\n",
2581                            desc->wq_addr, desc->wq_size);
2582                 seq_putc(m, '\n');
2583
2584                 for_each_engine_masked(engine, dev_priv, client->engines, tmp) {
2585                         u32 guc_engine_id = engine->guc_id;
2586                         struct guc_execlist_context *lrc =
2587                                                 &desc->lrc[guc_engine_id];
2588
2589                         seq_printf(m, "\t%s LRC:\n", engine->name);
2590                         seq_printf(m, "\t\tContext desc: 0x%x\n",
2591                                    lrc->context_desc);
2592                         seq_printf(m, "\t\tContext id: 0x%x\n", lrc->context_id);
2593                         seq_printf(m, "\t\tLRCA: 0x%x\n", lrc->ring_lrca);
2594                         seq_printf(m, "\t\tRing begin: 0x%x\n", lrc->ring_begin);
2595                         seq_printf(m, "\t\tRing end: 0x%x\n", lrc->ring_end);
2596                         seq_putc(m, '\n');
2597                 }
2598         }
2599
2600         return 0;
2601 }
2602
2603 static int i915_guc_log_dump(struct seq_file *m, void *data)
2604 {
2605         struct drm_info_node *node = m->private;
2606         struct drm_i915_private *dev_priv = node_to_i915(node);
2607         bool dump_load_err = !!node->info_ent->data;
2608         struct drm_i915_gem_object *obj = NULL;
2609         u32 *log;
2610         int i = 0;
2611
2612         if (dump_load_err)
2613                 obj = dev_priv->guc.load_err_log;
2614         else if (dev_priv->guc.log.vma)
2615                 obj = dev_priv->guc.log.vma->obj;
2616
2617         if (!obj)
2618                 return 0;
2619
2620         log = i915_gem_object_pin_map(obj, I915_MAP_WC);
2621         if (IS_ERR(log)) {
2622                 DRM_DEBUG("Failed to pin object\n");
2623                 seq_puts(m, "(log data unaccessible)\n");
2624                 return PTR_ERR(log);
2625         }
2626
2627         for (i = 0; i < obj->base.size / sizeof(u32); i += 4)
2628                 seq_printf(m, "0x%08x 0x%08x 0x%08x 0x%08x\n",
2629                            *(log + i), *(log + i + 1),
2630                            *(log + i + 2), *(log + i + 3));
2631
2632         seq_putc(m, '\n');
2633
2634         i915_gem_object_unpin_map(obj);
2635
2636         return 0;
2637 }
2638
2639 static int i915_guc_log_control_get(void *data, u64 *val)
2640 {
2641         struct drm_i915_private *dev_priv = data;
2642
2643         if (!dev_priv->guc.log.vma)
2644                 return -EINVAL;
2645
2646         *val = i915.guc_log_level;
2647
2648         return 0;
2649 }
2650
2651 static int i915_guc_log_control_set(void *data, u64 val)
2652 {
2653         struct drm_i915_private *dev_priv = data;
2654         int ret;
2655
2656         if (!dev_priv->guc.log.vma)
2657                 return -EINVAL;
2658
2659         ret = mutex_lock_interruptible(&dev_priv->drm.struct_mutex);
2660         if (ret)
2661                 return ret;
2662
2663         intel_runtime_pm_get(dev_priv);
2664         ret = i915_guc_log_control(dev_priv, val);
2665         intel_runtime_pm_put(dev_priv);
2666
2667         mutex_unlock(&dev_priv->drm.struct_mutex);
2668         return ret;
2669 }
2670
2671 DEFINE_SIMPLE_ATTRIBUTE(i915_guc_log_control_fops,
2672                         i915_guc_log_control_get, i915_guc_log_control_set,
2673                         "%lld\n");
2674
2675 static const char *psr2_live_status(u32 val)
2676 {
2677         static const char * const live_status[] = {
2678                 "IDLE",
2679                 "CAPTURE",
2680                 "CAPTURE_FS",
2681                 "SLEEP",
2682                 "BUFON_FW",
2683                 "ML_UP",
2684                 "SU_STANDBY",
2685                 "FAST_SLEEP",
2686                 "DEEP_SLEEP",
2687                 "BUF_ON",
2688                 "TG_ON"
2689         };
2690
2691         val = (val & EDP_PSR2_STATUS_STATE_MASK) >> EDP_PSR2_STATUS_STATE_SHIFT;
2692         if (val < ARRAY_SIZE(live_status))
2693                 return live_status[val];
2694
2695         return "unknown";
2696 }
2697
2698 static int i915_edp_psr_status(struct seq_file *m, void *data)
2699 {
2700         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2701         u32 psrperf = 0;
2702         u32 stat[3];
2703         enum pipe pipe;
2704         bool enabled = false;
2705
2706         if (!HAS_PSR(dev_priv)) {
2707                 seq_puts(m, "PSR not supported\n");
2708                 return 0;
2709         }
2710
2711         intel_runtime_pm_get(dev_priv);
2712
2713         mutex_lock(&dev_priv->psr.lock);
2714         seq_printf(m, "Sink_Support: %s\n", yesno(dev_priv->psr.sink_support));
2715         seq_printf(m, "Source_OK: %s\n", yesno(dev_priv->psr.source_ok));
2716         seq_printf(m, "Enabled: %s\n", yesno((bool)dev_priv->psr.enabled));
2717         seq_printf(m, "Active: %s\n", yesno(dev_priv->psr.active));
2718         seq_printf(m, "Busy frontbuffer bits: 0x%03x\n",
2719                    dev_priv->psr.busy_frontbuffer_bits);
2720         seq_printf(m, "Re-enable work scheduled: %s\n",
2721                    yesno(work_busy(&dev_priv->psr.work.work)));
2722
2723         if (HAS_DDI(dev_priv)) {
2724                 if (dev_priv->psr.psr2_support)
2725                         enabled = I915_READ(EDP_PSR2_CTL) & EDP_PSR2_ENABLE;
2726                 else
2727                         enabled = I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE;
2728         } else {
2729                 for_each_pipe(dev_priv, pipe) {
2730                         enum transcoder cpu_transcoder =
2731                                 intel_pipe_to_cpu_transcoder(dev_priv, pipe);
2732                         enum intel_display_power_domain power_domain;
2733
2734                         power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder);
2735                         if (!intel_display_power_get_if_enabled(dev_priv,
2736                                                                 power_domain))
2737                                 continue;
2738
2739                         stat[pipe] = I915_READ(VLV_PSRSTAT(pipe)) &
2740                                 VLV_EDP_PSR_CURR_STATE_MASK;
2741                         if ((stat[pipe] == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
2742                             (stat[pipe] == VLV_EDP_PSR_ACTIVE_SF_UPDATE))
2743                                 enabled = true;
2744
2745                         intel_display_power_put(dev_priv, power_domain);
2746                 }
2747         }
2748
2749         seq_printf(m, "Main link in standby mode: %s\n",
2750                    yesno(dev_priv->psr.link_standby));
2751
2752         seq_printf(m, "HW Enabled & Active bit: %s", yesno(enabled));
2753
2754         if (!HAS_DDI(dev_priv))
2755                 for_each_pipe(dev_priv, pipe) {
2756                         if ((stat[pipe] == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
2757                             (stat[pipe] == VLV_EDP_PSR_ACTIVE_SF_UPDATE))
2758                                 seq_printf(m, " pipe %c", pipe_name(pipe));
2759                 }
2760         seq_puts(m, "\n");
2761
2762         /*
2763          * VLV/CHV PSR has no kind of performance counter
2764          * SKL+ Perf counter is reset to 0 everytime DC state is entered
2765          */
2766         if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
2767                 psrperf = I915_READ(EDP_PSR_PERF_CNT) &
2768                         EDP_PSR_PERF_CNT_MASK;
2769
2770                 seq_printf(m, "Performance_Counter: %u\n", psrperf);
2771         }
2772         if (dev_priv->psr.psr2_support) {
2773                 u32 psr2 = I915_READ(EDP_PSR2_STATUS_CTL);
2774
2775                 seq_printf(m, "EDP_PSR2_STATUS_CTL: %x [%s]\n",
2776                            psr2, psr2_live_status(psr2));
2777         }
2778         mutex_unlock(&dev_priv->psr.lock);
2779
2780         intel_runtime_pm_put(dev_priv);
2781         return 0;
2782 }
2783
2784 static int i915_sink_crc(struct seq_file *m, void *data)
2785 {
2786         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2787         struct drm_device *dev = &dev_priv->drm;
2788         struct intel_connector *connector;
2789         struct drm_connector_list_iter conn_iter;
2790         struct intel_dp *intel_dp = NULL;
2791         int ret;
2792         u8 crc[6];
2793
2794         drm_modeset_lock_all(dev);
2795         drm_connector_list_iter_begin(dev, &conn_iter);
2796         for_each_intel_connector_iter(connector, &conn_iter) {
2797                 struct drm_crtc *crtc;
2798
2799                 if (!connector->base.state->best_encoder)
2800                         continue;
2801
2802                 crtc = connector->base.state->crtc;
2803                 if (!crtc->state->active)
2804                         continue;
2805
2806                 if (connector->base.connector_type != DRM_MODE_CONNECTOR_eDP)
2807                         continue;
2808
2809                 intel_dp = enc_to_intel_dp(connector->base.state->best_encoder);
2810
2811                 ret = intel_dp_sink_crc(intel_dp, crc);
2812                 if (ret)
2813                         goto out;
2814
2815                 seq_printf(m, "%02x%02x%02x%02x%02x%02x\n",
2816                            crc[0], crc[1], crc[2],
2817                            crc[3], crc[4], crc[5]);
2818                 goto out;
2819         }
2820         ret = -ENODEV;
2821 out:
2822         drm_connector_list_iter_end(&conn_iter);
2823         drm_modeset_unlock_all(dev);
2824         return ret;
2825 }
2826
2827 static int i915_energy_uJ(struct seq_file *m, void *data)
2828 {
2829         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2830         u64 power;
2831         u32 units;
2832
2833         if (INTEL_GEN(dev_priv) < 6)
2834                 return -ENODEV;
2835
2836         intel_runtime_pm_get(dev_priv);
2837
2838         rdmsrl(MSR_RAPL_POWER_UNIT, power);
2839         power = (power & 0x1f00) >> 8;
2840         units = 1000000 / (1 << power); /* convert to uJ */
2841         power = I915_READ(MCH_SECP_NRG_STTS);
2842         power *= units;
2843
2844         intel_runtime_pm_put(dev_priv);
2845
2846         seq_printf(m, "%llu", (long long unsigned)power);
2847
2848         return 0;
2849 }
2850
2851 static int i915_runtime_pm_status(struct seq_file *m, void *unused)
2852 {
2853         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2854         struct pci_dev *pdev = dev_priv->drm.pdev;
2855
2856         if (!HAS_RUNTIME_PM(dev_priv))
2857                 seq_puts(m, "Runtime power management not supported\n");
2858
2859         seq_printf(m, "GPU idle: %s\n", yesno(!dev_priv->gt.awake));
2860         seq_printf(m, "IRQs disabled: %s\n",
2861                    yesno(!intel_irqs_enabled(dev_priv)));
2862 #ifdef CONFIG_PM
2863         seq_printf(m, "Usage count: %d\n",
2864                    atomic_read(&dev_priv->drm.dev->power.usage_count));
2865 #else
2866         seq_printf(m, "Device Power Management (CONFIG_PM) disabled\n");
2867 #endif
2868         seq_printf(m, "PCI device power state: %s [%d]\n",
2869                    pci_power_name(pdev->current_state),
2870                    pdev->current_state);
2871
2872         return 0;
2873 }
2874
2875 static int i915_power_domain_info(struct seq_file *m, void *unused)
2876 {
2877         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2878         struct i915_power_domains *power_domains = &dev_priv->power_domains;
2879         int i;
2880
2881         mutex_lock(&power_domains->lock);
2882
2883         seq_printf(m, "%-25s %s\n", "Power well/domain", "Use count");
2884         for (i = 0; i < power_domains->power_well_count; i++) {
2885                 struct i915_power_well *power_well;
2886                 enum intel_display_power_domain power_domain;
2887
2888                 power_well = &power_domains->power_wells[i];
2889                 seq_printf(m, "%-25s %d\n", power_well->name,
2890                            power_well->count);
2891
2892                 for_each_power_domain(power_domain, power_well->domains)
2893                         seq_printf(m, "  %-23s %d\n",
2894                                  intel_display_power_domain_str(power_domain),
2895                                  power_domains->domain_use_count[power_domain]);
2896         }
2897
2898         mutex_unlock(&power_domains->lock);
2899
2900         return 0;
2901 }
2902
2903 static int i915_dmc_info(struct seq_file *m, void *unused)
2904 {
2905         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2906         struct intel_csr *csr;
2907
2908         if (!HAS_CSR(dev_priv)) {
2909                 seq_puts(m, "not supported\n");
2910                 return 0;
2911         }
2912
2913         csr = &dev_priv->csr;
2914
2915         intel_runtime_pm_get(dev_priv);
2916
2917         seq_printf(m, "fw loaded: %s\n", yesno(csr->dmc_payload != NULL));
2918         seq_printf(m, "path: %s\n", csr->fw_path);
2919
2920         if (!csr->dmc_payload)
2921                 goto out;
2922
2923         seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version),
2924                    CSR_VERSION_MINOR(csr->version));
2925
2926         if (IS_KABYLAKE(dev_priv) ||
2927             (IS_SKYLAKE(dev_priv) && csr->version >= CSR_VERSION(1, 6))) {
2928                 seq_printf(m, "DC3 -> DC5 count: %d\n",
2929                            I915_READ(SKL_CSR_DC3_DC5_COUNT));
2930                 seq_printf(m, "DC5 -> DC6 count: %d\n",
2931                            I915_READ(SKL_CSR_DC5_DC6_COUNT));
2932         } else if (IS_BROXTON(dev_priv) && csr->version >= CSR_VERSION(1, 4)) {
2933                 seq_printf(m, "DC3 -> DC5 count: %d\n",
2934                            I915_READ(BXT_CSR_DC3_DC5_COUNT));
2935         }
2936
2937 out:
2938         seq_printf(m, "program base: 0x%08x\n", I915_READ(CSR_PROGRAM(0)));
2939         seq_printf(m, "ssp base: 0x%08x\n", I915_READ(CSR_SSP_BASE));
2940         seq_printf(m, "htp: 0x%08x\n", I915_READ(CSR_HTP_SKL));
2941
2942         intel_runtime_pm_put(dev_priv);
2943
2944         return 0;
2945 }
2946
2947 static void intel_seq_print_mode(struct seq_file *m, int tabs,
2948                                  struct drm_display_mode *mode)
2949 {
2950         int i;
2951
2952         for (i = 0; i < tabs; i++)
2953                 seq_putc(m, '\t');
2954
2955         seq_printf(m, "id %d:\"%s\" freq %d clock %d hdisp %d hss %d hse %d htot %d vdisp %d vss %d vse %d vtot %d type 0x%x flags 0x%x\n",
2956                    mode->base.id, mode->name,
2957                    mode->vrefresh, mode->clock,
2958                    mode->hdisplay, mode->hsync_start,
2959                    mode->hsync_end, mode->htotal,
2960                    mode->vdisplay, mode->vsync_start,
2961                    mode->vsync_end, mode->vtotal,
2962                    mode->type, mode->flags);
2963 }
2964
2965 static void intel_encoder_info(struct seq_file *m,
2966                                struct intel_crtc *intel_crtc,
2967                                struct intel_encoder *intel_encoder)
2968 {
2969         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2970         struct drm_device *dev = &dev_priv->drm;
2971         struct drm_crtc *crtc = &intel_crtc->base;
2972         struct intel_connector *intel_connector;
2973         struct drm_encoder *encoder;
2974
2975         encoder = &intel_encoder->base;
2976         seq_printf(m, "\tencoder %d: type: %s, connectors:\n",
2977                    encoder->base.id, encoder->name);
2978         for_each_connector_on_encoder(dev, encoder, intel_connector) {
2979                 struct drm_connector *connector = &intel_connector->base;
2980                 seq_printf(m, "\t\tconnector %d: type: %s, status: %s",
2981                            connector->base.id,
2982                            connector->name,
2983                            drm_get_connector_status_name(connector->status));
2984                 if (connector->status == connector_status_connected) {
2985                         struct drm_display_mode *mode = &crtc->mode;
2986                         seq_printf(m, ", mode:\n");
2987                         intel_seq_print_mode(m, 2, mode);
2988                 } else {
2989                         seq_putc(m, '\n');
2990                 }
2991         }
2992 }
2993
2994 static void intel_crtc_info(struct seq_file *m, struct intel_crtc *intel_crtc)
2995 {
2996         struct drm_i915_private *dev_priv = node_to_i915(m->private);
2997         struct drm_device *dev = &dev_priv->drm;
2998         struct drm_crtc *crtc = &intel_crtc->base;
2999         struct intel_encoder *intel_encoder;
3000         struct drm_plane_state *plane_state = crtc->primary->state;
3001         struct drm_framebuffer *fb = plane_state->fb;
3002
3003         if (fb)
3004                 seq_printf(m, "\tfb: %d, pos: %dx%d, size: %dx%d\n",
3005                            fb->base.id, plane_state->src_x >> 16,
3006                            plane_state->src_y >> 16, fb->width, fb->height);
3007         else
3008                 seq_puts(m, "\tprimary plane disabled\n");
3009         for_each_encoder_on_crtc(dev, crtc, intel_encoder)
3010                 intel_encoder_info(m, intel_crtc, intel_encoder);
3011 }
3012
3013 static void intel_panel_info(struct seq_file *m, struct intel_panel *panel)
3014 {
3015         struct drm_display_mode *mode = panel->fixed_mode;
3016
3017         seq_printf(m, "\tfixed mode:\n");
3018         intel_seq_print_mode(m, 2, mode);
3019 }
3020
3021 static void intel_dp_info(struct seq_file *m,
3022                           struct intel_connector *intel_connector)
3023 {
3024         struct intel_encoder *intel_encoder = intel_connector->encoder;
3025         struct intel_dp *intel_dp = enc_to_intel_dp(&intel_encoder->base);
3026
3027         seq_printf(m, "\tDPCD rev: %x\n", intel_dp->dpcd[DP_DPCD_REV]);
3028         seq_printf(m, "\taudio support: %s\n", yesno(intel_dp->has_audio));
3029         if (intel_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)
3030                 intel_panel_info(m, &intel_connector->panel);
3031
3032         drm_dp_downstream_debug(m, intel_dp->dpcd, intel_dp->downstream_ports,
3033                                 &intel_dp->aux);
3034 }
3035
3036 static void intel_dp_mst_info(struct seq_file *m,
3037                           struct intel_connector *intel_connector)
3038 {
3039         struct intel_encoder *intel_encoder = intel_connector->encoder;
3040         struct intel_dp_mst_encoder *intel_mst =
3041                 enc_to_mst(&intel_encoder->base);
3042         struct intel_digital_port *intel_dig_port = intel_mst->primary;
3043         struct intel_dp *intel_dp = &intel_dig_port->dp;
3044         bool has_audio = drm_dp_mst_port_has_audio(&intel_dp->mst_mgr,
3045                                         intel_connector->port);
3046
3047         seq_printf(m, "\taudio support: %s\n", yesno(has_audio));
3048 }
3049
3050 static void intel_hdmi_info(struct seq_file *m,
3051                             struct intel_connector *intel_connector)
3052 {
3053         struct intel_encoder *intel_encoder = intel_connector->encoder;
3054         struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&intel_encoder->base);
3055
3056         seq_printf(m, "\taudio support: %s\n", yesno(intel_hdmi->has_audio));
3057 }
3058
3059 static void intel_lvds_info(struct seq_file *m,
3060                             struct intel_connector *intel_connector)
3061 {
3062         intel_panel_info(m, &intel_connector->panel);
3063 }
3064
3065 static void intel_connector_info(struct seq_file *m,
3066                                  struct drm_connector *connector)
3067 {
3068         struct intel_connector *intel_connector = to_intel_connector(connector);
3069         struct intel_encoder *intel_encoder = intel_connector->encoder;
3070         struct drm_display_mode *mode;
3071
3072         seq_printf(m, "connector %d: type %s, status: %s\n",
3073                    connector->base.id, connector->name,
3074                    drm_get_connector_status_name(connector->status));
3075         if (connector->status == connector_status_connected) {
3076                 seq_printf(m, "\tname: %s\n", connector->display_info.name);
3077                 seq_printf(m, "\tphysical dimensions: %dx%dmm\n",
3078                            connector->display_info.width_mm,
3079                            connector->display_info.height_mm);
3080                 seq_printf(m, "\tsubpixel order: %s\n",
3081                            drm_get_subpixel_order_name(connector->display_info.subpixel_order));
3082                 seq_printf(m, "\tCEA rev: %d\n",
3083                            connector->display_info.cea_rev);
3084         }
3085
3086         if (!intel_encoder)
3087                 return;
3088
3089         switch (connector->connector_type) {
3090         case DRM_MODE_CONNECTOR_DisplayPort:
3091         case DRM_MODE_CONNECTOR_eDP:
3092                 if (intel_encoder->type == INTEL_OUTPUT_DP_MST)
3093                         intel_dp_mst_info(m, intel_connector);
3094                 else
3095                         intel_dp_info(m, intel_connector);
3096                 break;
3097         case DRM_MODE_CONNECTOR_LVDS:
3098                 if (intel_encoder->type == INTEL_OUTPUT_LVDS)
3099                         intel_lvds_info(m, intel_connector);
3100                 break;
3101         case DRM_MODE_CONNECTOR_HDMIA:
3102                 if (intel_encoder->type == INTEL_OUTPUT_HDMI ||
3103                     intel_encoder->type == INTEL_OUTPUT_UNKNOWN)
3104                         intel_hdmi_info(m, intel_connector);
3105                 break;
3106         default:
3107                 break;
3108         }
3109
3110         seq_printf(m, "\tmodes:\n");
3111         list_for_each_entry(mode, &connector->modes, head)
3112                 intel_seq_print_mode(m, 2, mode);
3113 }
3114
3115 static const char *plane_type(enum drm_plane_type type)
3116 {
3117         switch (type) {
3118         case DRM_PLANE_TYPE_OVERLAY:
3119                 return "OVL";
3120         case DRM_PLANE_TYPE_PRIMARY:
3121                 return "PRI";
3122         case DRM_PLANE_TYPE_CURSOR:
3123                 return "CUR";
3124         /*
3125          * Deliberately omitting default: to generate compiler warnings
3126          * when a new drm_plane_type gets added.
3127          */
3128         }
3129
3130         return "unknown";
3131 }
3132
3133 static const char *plane_rotation(unsigned int rotation)
3134 {
3135         static char buf[48];
3136         /*
3137          * According to doc only one DRM_MODE_ROTATE_ is allowed but this
3138          * will print them all to visualize if the values are misused
3139          */
3140         snprintf(buf, sizeof(buf),
3141                  "%s%s%s%s%s%s(0x%08x)",
3142                  (rotation & DRM_MODE_ROTATE_0) ? "0 " : "",
3143                  (rotation & DRM_MODE_ROTATE_90) ? "90 " : "",
3144                  (rotation & DRM_MODE_ROTATE_180) ? "180 " : "",
3145                  (rotation & DRM_MODE_ROTATE_270) ? "270 " : "",
3146                  (rotation & DRM_MODE_REFLECT_X) ? "FLIPX " : "",
3147                  (rotation & DRM_MODE_REFLECT_Y) ? "FLIPY " : "",
3148                  rotation);
3149
3150         return buf;
3151 }
3152
3153 static void intel_plane_info(struct seq_file *m, struct intel_crtc *intel_crtc)
3154 {
3155         struct drm_i915_private *dev_priv = node_to_i915(m->private);
3156         struct drm_device *dev = &dev_priv->drm;
3157         struct intel_plane *intel_plane;
3158
3159         for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) {
3160                 struct drm_plane_state *state;
3161                 struct drm_plane *plane = &intel_plane->base;
3162                 struct drm_format_name_buf format_name;
3163
3164                 if (!plane->state) {
3165                         seq_puts(m, "plane->state is NULL!\n");
3166                         continue;
3167                 }
3168
3169                 state = plane->state;
3170
3171                 if (state->fb) {
3172                         drm_get_format_name(state->fb->format->format,
3173                                             &format_name);
3174                 } else {
3175                         sprintf(format_name.str, "N/A");
3176                 }
3177
3178                 seq_printf(m, "\t--Plane id %d: type=%s, crtc_pos=%4dx%4d, crtc_size=%4dx%4d, src_pos=%d.%04ux%d.%04u, src_size=%d.%04ux%d.%04u, format=%s, rotation=%s\n",
3179                            plane->base.id,
3180                            plane_type(intel_plane->base.type),
3181                            state->crtc_x, state->crtc_y,
3182                            state->crtc_w, state->crtc_h,
3183                            (state->src_x >> 16),
3184                            ((state->src_x & 0xffff) * 15625) >> 10,
3185                            (state->src_y >> 16),
3186                            ((state->src_y & 0xffff) * 15625) >> 10,
3187                            (state->src_w >> 16),
3188                            ((state->src_w & 0xffff) * 15625) >> 10,
3189                            (state->src_h >> 16),
3190                            ((state->src_h & 0xffff) * 15625) >> 10,
3191                            format_name.str,
3192                            plane_rotation(state->rotation));
3193         }
3194 }
3195
3196 static void intel_scaler_info(struct seq_file *m, struct intel_crtc *intel_crtc)
3197 {
3198         struct intel_crtc_state *pipe_config;
3199         int num_scalers = intel_crtc->num_scalers;
3200         int i;
3201
3202         pipe_config = to_intel_crtc_state(intel_crtc->base.state);
3203
3204         /* Not all platformas have a scaler */
3205         if (num_scalers) {
3206                 seq_printf(m, "\tnum_scalers=%d, scaler_users=%x scaler_id=%d",
3207                            num_scalers,
3208                            pipe_config->scaler_state.scaler_users,
3209                            pipe_config->scaler_state.scaler_id);
3210
3211                 for (i = 0; i < num_scalers; i++) {
3212                         struct intel_scaler *sc =
3213                                         &pipe_config->scaler_state.scalers[i];
3214
3215                         seq_printf(m, ", scalers[%d]: use=%s, mode=%x",
3216                                    i, yesno(sc->in_use), sc->mode);
3217                 }
3218                 seq_puts(m, "\n");
3219         } else {
3220                 seq_puts(m, "\tNo scalers available on this platform\n");
3221         }
3222 }
3223
3224 static int i915_display_info(struct seq_file *m, void *unused)
3225 {
3226         struct drm_i915_private *dev_priv = node_to_i915(m->private);
3227         struct drm_device *dev = &dev_priv->drm;
3228         struct intel_crtc *crtc;
3229         struct drm_connector *connector;
3230         struct drm_connector_list_iter conn_iter;
3231
3232         intel_runtime_pm_get(dev_priv);
3233         seq_printf(m, "CRTC info\n");
3234         seq_printf(m, "---------\n");
3235         for_each_intel_crtc(dev, crtc) {
3236                 struct intel_crtc_state *pipe_config;
3237
3238                 drm_modeset_lock(&crtc->base.mutex, NULL);
3239                 pipe_config = to_intel_crtc_state(crtc->base.state);
3240
3241                 seq_printf(m, "CRTC %d: pipe: %c, active=%s, (size=%dx%d), dither=%s, bpp=%d\n",
3242                            crtc->base.base.id, pipe_name(crtc->pipe),
3243                            yesno(pipe_config->base.active),
3244                            pipe_config->pipe_src_w, pipe_config->pipe_src_h,
3245                            yesno(pipe_config->dither), pipe_config->pipe_bpp);
3246
3247                 if (pipe_config->base.active) {
3248                         struct intel_plane *cursor =
3249                                 to_intel_plane(crtc->base.cursor);
3250
3251                         intel_crtc_info(m, crtc);
3252
3253                         seq_printf(m, "\tcursor visible? %s, position (%d, %d), size %dx%d, addr 0x%08x\n",
3254                                    yesno(cursor->base.state->visible),
3255                                    cursor->base.state->crtc_x,
3256                                    cursor->base.state->crtc_y,
3257                                    cursor->base.state->crtc_w,
3258                                    cursor->base.state->crtc_h,
3259                                    cursor->cursor.base);
3260                         intel_scaler_info(m, crtc);
3261                         intel_plane_info(m, crtc);
3262                 }
3263
3264                 seq_printf(m, "\tunderrun reporting: cpu=%s pch=%s \n",
3265                            yesno(!crtc->cpu_fifo_underrun_disabled),
3266                            yesno(!crtc->pch_fifo_underrun_disabled));
3267                 drm_modeset_unlock(&crtc->base.mutex);
3268         }
3269
3270         seq_printf(m, "\n");
3271         seq_printf(m, "Connector info\n");
3272         seq_printf(m, "--------------\n");
3273         mutex_lock(&dev->mode_config.mutex);
3274         drm_connector_list_iter_begin(dev, &conn_iter);
3275         drm_for_each_connector_iter(connector, &conn_iter)
3276                 intel_connector_info(m, connector);
3277         drm_connector_list_iter_end(&conn_iter);
3278         mutex_unlock(&dev->mode_config.mutex);
3279
3280         intel_runtime_pm_put(dev_priv);
3281
3282         return 0;
3283 }
3284
3285 static int i915_engine_info(struct seq_file *m, void *unused)
3286 {
3287         struct drm_i915_private *dev_priv = node_to_i915(m->private);
3288         struct intel_engine_cs *engine;
3289         enum intel_engine_id id;
3290
3291         intel_runtime_pm_get(dev_priv);
3292
3293         seq_printf(m, "GT awake? %s\n",
3294                    yesno(dev_priv->gt.awake));
3295         seq_printf(m, "Global active requests: %d\n",
3296                    dev_priv->gt.active_requests);
3297
3298         for_each_engine(engine, dev_priv, id) {
3299                 struct intel_breadcrumbs *b = &engine->breadcrumbs;
3300                 struct drm_i915_gem_request *rq;
3301                 struct rb_node *rb;
3302                 u64 addr;
3303
3304                 seq_printf(m, "%s\n", engine->name);
3305                 seq_printf(m, "\tcurrent seqno %x, last %x, hangcheck %x [%d ms], inflight %d\n",
3306                            intel_engine_get_seqno(engine),
3307                            intel_engine_last_submit(engine),
3308                            engine->hangcheck.seqno,
3309                            jiffies_to_msecs(jiffies - engine->hangcheck.action_timestamp),
3310                            engine->timeline->inflight_seqnos);
3311
3312                 rcu_read_lock();
3313
3314                 seq_printf(m, "\tRequests:\n");
3315
3316                 rq = list_first_entry(&engine->timeline->requests,
3317                                       struct drm_i915_gem_request, link);
3318                 if (&rq->link != &engine->timeline->requests)
3319                         print_request(m, rq, "\t\tfirst  ");
3320
3321                 rq = list_last_entry(&engine->timeline->requests,
3322                                      struct drm_i915_gem_request, link);
3323                 if (&rq->link != &engine->timeline->requests)
3324                         print_request(m, rq, "\t\tlast   ");
3325
3326                 rq = i915_gem_find_active_request(engine);
3327                 if (rq) {
3328                         print_request(m, rq, "\t\tactive ");
3329                         seq_printf(m,
3330                                    "\t\t[head %04x, postfix %04x, tail %04x, batch 0x%08x_%08x]\n",
3331                                    rq->head, rq->postfix, rq->tail,
3332                                    rq->batch ? upper_32_bits(rq->batch->node.start) : ~0u,
3333                                    rq->batch ? lower_32_bits(rq->batch->node.start) : ~0u);
3334                 }
3335
3336                 seq_printf(m, "\tRING_START: 0x%08x [0x%08x]\n",
3337                            I915_READ(RING_START(engine->mmio_base)),
3338                            rq ? i915_ggtt_offset(rq->ring->vma) : 0);
3339                 seq_printf(m, "\tRING_HEAD:  0x%08x [0x%08x]\n",
3340                            I915_READ(RING_HEAD(engine->mmio_base)) & HEAD_ADDR,
3341                            rq ? rq->ring->head : 0);
3342                 seq_printf(m, "\tRING_TAIL:  0x%08x [0x%08x]\n",
3343                            I915_READ(RING_TAIL(engine->mmio_base)) & TAIL_ADDR,
3344                            rq ? rq->ring->tail : 0);
3345                 seq_printf(m, "\tRING_CTL:   0x%08x [%s]\n",
3346                            I915_READ(RING_CTL(engine->mmio_base)),
3347                            I915_READ(RING_CTL(engine->mmio_base)) & (RING_WAIT | RING_WAIT_SEMAPHORE) ? "waiting" : "");
3348
3349                 rcu_read_unlock();
3350
3351                 addr = intel_engine_get_active_head(engine);
3352                 seq_printf(m, "\tACTHD:  0x%08x_%08x\n",
3353                            upper_32_bits(addr), lower_32_bits(addr));
3354                 addr = intel_engine_get_last_batch_head(engine);
3355                 seq_printf(m, "\tBBADDR: 0x%08x_%08x\n",
3356                            upper_32_bits(addr), lower_32_bits(addr));
3357
3358                 if (i915.enable_execlists) {
3359                         u32 ptr, read, write;
3360                         unsigned int idx;
3361
3362                         seq_printf(m, "\tExeclist status: 0x%08x %08x\n",
3363                                    I915_READ(RING_EXECLIST_STATUS_LO(engine)),
3364                                    I915_READ(RING_EXECLIST_STATUS_HI(engine)));
3365
3366                         ptr = I915_READ(RING_CONTEXT_STATUS_PTR(engine));
3367                         read = GEN8_CSB_READ_PTR(ptr);
3368                         write = GEN8_CSB_WRITE_PTR(ptr);
3369                         seq_printf(m, "\tExeclist CSB read %d, write %d\n",
3370                                    read, write);
3371                         if (read >= GEN8_CSB_ENTRIES)
3372                                 read = 0;
3373                         if (write >= GEN8_CSB_ENTRIES)
3374                                 write = 0;
3375                         if (read > write)
3376                                 write += GEN8_CSB_ENTRIES;
3377                         while (read < write) {
3378                                 idx = ++read % GEN8_CSB_ENTRIES;
3379                                 seq_printf(m, "\tExeclist CSB[%d]: 0x%08x, context: %d\n",
3380                                            idx,
3381                                            I915_READ(RING_CONTEXT_STATUS_BUF_LO(engine, idx)),
3382                                            I915_READ(RING_CONTEXT_STATUS_BUF_HI(engine, idx)));
3383                         }
3384
3385                         rcu_read_lock();
3386                         for (idx = 0; idx < ARRAY_SIZE(engine->execlist_port); idx++) {
3387                                 unsigned int count;
3388
3389                                 rq = port_unpack(&engine->execlist_port[idx],
3390                                                  &count);
3391                                 if (rq) {
3392                                         seq_printf(m, "\t\tELSP[%d] count=%d, ",
3393                                                    idx, count);
3394                                         print_request(m, rq, "rq: ");
3395                                 } else {
3396                                         seq_printf(m, "\t\tELSP[%d] idle\n",
3397                                                    idx);
3398                                 }
3399                         }
3400                         rcu_read_unlock();
3401
3402                         spin_lock_irq(&engine->timeline->lock);
3403                         for (rb = engine->execlist_first; rb; rb = rb_next(rb)){
3404                                 struct i915_priolist *p =
3405                                         rb_entry(rb, typeof(*p), node);
3406
3407                                 list_for_each_entry(rq, &p->requests,
3408                                                     priotree.link)
3409                                         print_request(m, rq, "\t\tQ ");
3410                         }
3411                         spin_unlock_irq(&engine->timeline->lock);
3412                 } else if (INTEL_GEN(dev_priv) > 6) {
3413                         seq_printf(m, "\tPP_DIR_BASE: 0x%08x\n",
3414                                    I915_READ(RING_PP_DIR_BASE(engine)));
3415                         seq_printf(m, "\tPP_DIR_BASE_READ: 0x%08x\n",
3416                                    I915_READ(RING_PP_DIR_BASE_READ(engine)));
3417                         seq_printf(m, "\tPP_DIR_DCLV: 0x%08x\n",
3418                                    I915_READ(RING_PP_DIR_DCLV(engine)));
3419                 }
3420
3421                 spin_lock_irq(&b->rb_lock);
3422                 for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) {
3423                         struct intel_wait *w = rb_entry(rb, typeof(*w), node);
3424
3425                         seq_printf(m, "\t%s [%d] waiting for %x\n",
3426                                    w->tsk->comm, w->tsk->pid, w->seqno);
3427                 }
3428                 spin_unlock_irq(&b->rb_lock);
3429
3430                 seq_puts(m, "\n");
3431         }
3432
3433         intel_runtime_pm_put(dev_priv);
3434
3435         return 0;
3436 }
3437
3438 static int i915_semaphore_status(struct seq_file *m, void *unused)
3439 {
3440         struct drm_i915_private *dev_priv = node_to_i915(m->private);
3441         struct drm_device *dev = &dev_priv->drm;
3442         struct intel_engine_cs *engine;
3443         int num_rings = INTEL_INFO(dev_priv)->num_rings;
3444         enum intel_engine_id id;
3445         int j, ret;
3446
3447         if (!i915.semaphores) {
3448                 seq_puts(m, "Semaphores are disabled\n");
3449                 return 0;
3450         }
3451
3452         ret = mutex_lock_interruptible(&dev->struct_mutex);
3453         if (ret)
3454                 return ret;
3455         intel_runtime_pm_get(dev_priv);
3456
3457         if (IS_BROADWELL(dev_priv)) {
3458                 struct page *page;
3459                 uint64_t *seqno;
3460
3461                 page = i915_gem_object_get_page(dev_priv->semaphore->obj, 0);
3462
3463                 seqno = (uint64_t *)kmap_atomic(page);
3464                 for_each_engine(engine, dev_priv, id) {
3465                         uint64_t offset;
3466
3467                         seq_printf(m, "%s\n", engine->name);
3468
3469                         seq_puts(m, "  Last signal:");
3470                         for (j = 0; j < num_rings; j++) {
3471                                 offset = id * I915_NUM_ENGINES + j;
3472                                 seq_printf(m, "0x%08llx (0x%02llx) ",
3473                                            seqno[offset], offset * 8);
3474                         }
3475                         seq_putc(m, '\n');
3476
3477                         seq_puts(m, "  Last wait:  ");
3478                         for (j = 0; j < num_rings; j++) {
3479                                 offset = id + (j * I915_NUM_ENGINES);
3480                                 seq_printf(m, "0x%08llx (0x%02llx) ",
3481                                            seqno[offset], offset * 8);
3482                         }
3483                         seq_putc(m, '\n');
3484
3485                 }
3486                 kunmap_atomic(seqno);
3487         } else {
3488                 seq_puts(m, "  Last signal:");
3489                 for_each_engine(engine, dev_priv, id)
3490                         for (j = 0; j < num_rings; j++)
3491                                 seq_printf(m, "0x%08x\n",
3492                                            I915_READ(engine->semaphore.mbox.signal[j]));
3493                 seq_putc(m, '\n');
3494         }
3495
3496         intel_runtime_pm_put(dev_priv);
3497         mutex_unlock(&dev->struct_mutex);
3498         return 0;
3499 }
3500
3501 static int i915_shared_dplls_info(struct seq_file *m, void *unused)
3502 {
3503         struct drm_i915_private *dev_priv = node_to_i915(m->private);
3504         struct drm_device *dev = &dev_priv->drm;
3505         int i;
3506
3507         drm_modeset_lock_all(dev);
3508         for (i = 0; i < dev_priv->num_shared_dpll; i++) {
3509                 struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
3510
3511                 seq_printf(m, "DPLL%i: %s, id: %i\n", i, pll->name, pll->id);
3512                 seq_printf(m, " crtc_mask: 0x%08x, active: 0x%x, on: %s\n",
3513                            pll->state.crtc_mask, pll->active_mask, yesno(pll->on));
3514                 seq_printf(m, " tracked hardware state:\n");
3515                 seq_printf(m, " dpll:    0x%08x\n", pll->state.hw_state.dpll);
3516                 seq_printf(m, " dpll_md: 0x%08x\n",
3517                            pll->state.hw_state.dpll_md);
3518                 seq_printf(m, " fp0:     0x%08x\n", pll->state.hw_state.fp0);
3519                 seq_printf(m, " fp1:     0x%08x\n", pll->state.hw_state.fp1);
3520                 seq_printf(m, " wrpll:   0x%08x\n", pll->state.hw_state.wrpll);
3521         }
3522         drm_modeset_unlock_all(dev);
3523
3524         return 0;
3525 }
3526
3527 static int i915_wa_registers(struct seq_file *m, void *unused)
3528 {
3529         int i;
3530         int ret;
3531         struct intel_engine_cs *engine;
3532         struct drm_i915_private *dev_priv = node_to_i915(m->private);
3533         struct drm_device *dev = &dev_priv->drm;
3534         struct i915_workarounds *workarounds = &dev_priv->workarounds;
3535         enum intel_engine_id id;
3536
3537         ret = mutex_lock_interruptible(&dev->struct_mutex);
3538         if (ret)
3539                 return ret;
3540
3541         intel_runtime_pm_get(dev_priv);
3542
3543         seq_printf(m, "Workarounds applied: %d\n", workarounds->count);
3544         for_each_engine(engine, dev_priv, id)
3545                 seq_printf(m, "HW whitelist count for %s: %d\n",
3546                            engine->name, workarounds->hw_whitelist_count[id]);
3547         for (i = 0; i < workarounds->count; ++i) {
3548                 i915_reg_t addr;
3549                 u32 mask, value, read;
3550                 bool ok;
3551
3552                 addr = workarounds->reg[i].addr;
3553                 mask = workarounds->reg[i].mask;
3554                 value = workarounds->reg[i].value;
3555                 read = I915_READ(addr);
3556                 ok = (value & mask) == (read & mask);
3557                 seq_printf(m, "0x%X: 0x%08X, mask: 0x%08X, read: 0x%08x, status: %s\n",
3558                            i915_mmio_reg_offset(addr), value, mask, read, ok ? "OK" : "FAIL");
3559         }
3560
3561         intel_runtime_pm_put(dev_priv);
3562         mutex_unlock(&dev->struct_mutex);
3563
3564         return 0;
3565 }
3566
3567 static int i915_ddb_info(struct seq_file *m, void *unused)
3568 {
3569         struct drm_i915_private *dev_priv = node_to_i915(m->private);
3570         struct drm_device *dev = &dev_priv->drm;
3571         struct skl_ddb_allocation *ddb;
3572         struct skl_ddb_entry *entry;
3573         enum pipe pipe;
3574         int plane;
3575
3576         if (INTEL_GEN(dev_priv) < 9)
3577                 return 0;
3578
3579         drm_modeset_lock_all(dev);
3580
3581         ddb = &dev_priv->wm.skl_hw.ddb;
3582
3583         seq_printf(m, "%-15s%8s%8s%8s\n", "", "Start", "End", "Size");
3584
3585         for_each_pipe(dev_priv, pipe) {
3586                 seq_printf(m, "Pipe %c\n", pipe_name(pipe));
3587
3588                 for_each_universal_plane(dev_priv, pipe, plane) {
3589                         entry = &ddb->plane[pipe][plane];
3590                         seq_printf(m, "  Plane%-8d%8u%8u%8u\n", plane + 1,
3591                                    entry->start, entry->end,
3592                                    skl_ddb_entry_size(entry));
3593                 }
3594
3595                 entry = &ddb->plane[pipe][PLANE_CURSOR];
3596                 seq_printf(m, "  %-13s%8u%8u%8u\n", "Cursor", entry->start,
3597                            entry->end, skl_ddb_entry_size(entry));
3598         }
3599
3600         drm_modeset_unlock_all(dev);
3601
3602         return 0;
3603 }
3604
3605 static void drrs_status_per_crtc(struct seq_file *m,
3606                                  struct drm_device *dev,
3607                                  struct intel_crtc *intel_crtc)
3608 {
3609         struct drm_i915_private *dev_priv = to_i915(dev);
3610         struct i915_drrs *drrs = &dev_priv->drrs;
3611         int vrefresh = 0;
3612         struct drm_connector *connector;
3613         struct drm_connector_list_iter conn_iter;
3614
3615         drm_connector_list_iter_begin(dev, &conn_iter);
3616         drm_for_each_connector_iter(connector, &conn_iter) {
3617                 if (connector->state->crtc != &intel_crtc->base)
3618                         continue;
3619
3620                 seq_printf(m, "%s:\n", connector->name);
3621         }
3622         drm_connector_list_iter_end(&conn_iter);
3623
3624         if (dev_priv->vbt.drrs_type == STATIC_DRRS_SUPPORT)
3625                 seq_puts(m, "\tVBT: DRRS_type: Static");
3626         else if (dev_priv->vbt.drrs_type == SEAMLESS_DRRS_SUPPORT)
3627                 seq_puts(m, "\tVBT: DRRS_type: Seamless");
3628         else if (dev_priv->vbt.drrs_type == DRRS_NOT_SUPPORTED)
3629                 seq_puts(m, "\tVBT: DRRS_type: None");
3630         else
3631                 seq_puts(m, "\tVBT: DRRS_type: FIXME: Unrecognized Value");
3632
3633         seq_puts(m, "\n\n");
3634
3635         if (to_intel_crtc_state(intel_crtc->base.state)->has_drrs) {
3636                 struct intel_panel *panel;
3637
3638                 mutex_lock(&drrs->mutex);
3639                 /* DRRS Supported */
3640                 seq_puts(m, "\tDRRS Supported: Yes\n");
3641
3642                 /* disable_drrs() will make drrs->dp NULL */
3643                 if (!drrs->dp) {
3644                         seq_puts(m, "Idleness DRRS: Disabled");
3645                         mutex_unlock(&drrs->mutex);
3646                         return;
3647                 }
3648
3649                 panel = &drrs->dp->attached_connector->panel;
3650                 seq_printf(m, "\t\tBusy_frontbuffer_bits: 0x%X",
3651                                         drrs->busy_frontbuffer_bits);
3652
3653                 seq_puts(m, "\n\t\t");
3654                 if (drrs->refresh_rate_type == DRRS_HIGH_RR) {
3655                         seq_puts(m, "DRRS_State: DRRS_HIGH_RR\n");
3656                         vrefresh = panel->fixed_mode->vrefresh;
3657                 } else if (drrs->refresh_rate_type == DRRS_LOW_RR) {
3658                         seq_puts(m, "DRRS_State: DRRS_LOW_RR\n");
3659                         vrefresh = panel->downclock_mode->vrefresh;
3660                 } else {
3661                         seq_printf(m, "DRRS_State: Unknown(%d)\n",
3662                                                 drrs->refresh_rate_type);
3663                         mutex_unlock(&drrs->mutex);
3664                         return;
3665                 }
3666                 seq_printf(m, "\t\tVrefresh: %d", vrefresh);
3667
3668                 seq_puts(m, "\n\t\t");
3669                 mutex_unlock(&drrs->mutex);
3670         } else {
3671                 /* DRRS not supported. Print the VBT parameter*/
3672                 seq_puts(m, "\tDRRS Supported : No");
3673         }
3674         seq_puts(m, "\n");
3675 }
3676
3677 static int i915_drrs_status(struct seq_file *m, void *unused)
3678 {
3679         struct drm_i915_private *dev_priv = node_to_i915(m->private);
3680         struct drm_device *dev = &dev_priv->drm;
3681         struct intel_crtc *intel_crtc;
3682         int active_crtc_cnt = 0;
3683
3684         drm_modeset_lock_all(dev);
3685         for_each_intel_crtc(dev, intel_crtc) {
3686                 if (intel_crtc->base.state->active) {
3687                         active_crtc_cnt++;
3688                         seq_printf(m, "\nCRTC %d:  ", active_crtc_cnt);
3689
3690                         drrs_status_per_crtc(m, dev, intel_crtc);
3691                 }
3692         }
3693         drm_modeset_unlock_all(dev);
3694
3695         if (!active_crtc_cnt)
3696                 seq_puts(m, "No active crtc found\n");
3697
3698         return 0;
3699 }
3700
3701 static int i915_dp_mst_info(struct seq_file *m, void *unused)
3702 {
3703         struct drm_i915_private *dev_priv = node_to_i915(m->private);
3704         struct drm_device *dev = &dev_priv->drm;
3705         struct intel_encoder *intel_encoder;
3706         struct intel_digital_port *intel_dig_port;
3707         struct drm_connector *connector;
3708         struct drm_connector_list_iter conn_iter;
3709
3710         drm_connector_list_iter_begin(dev, &conn_iter);
3711         drm_for_each_connector_iter(connector, &conn_iter) {
3712                 if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort)
3713                         continue;
3714
3715                 intel_encoder = intel_attached_encoder(connector);
3716                 if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
3717                         continue;
3718
3719                 intel_dig_port = enc_to_dig_port(&intel_encoder->base);
3720                 if (!intel_dig_port->dp.can_mst)
3721                         continue;
3722
3723                 seq_printf(m, "MST Source Port %c\n",
3724                            port_name(intel_dig_port->port));
3725                 drm_dp_mst_dump_topology(m, &intel_dig_port->dp.mst_mgr);
3726         }
3727         drm_connector_list_iter_end(&conn_iter);
3728
3729         return 0;
3730 }
3731
3732 static ssize_t i915_displayport_test_active_write(struct file *file,
3733                                                   const char __user *ubuf,
3734                                                   size_t len, loff_t *offp)
3735 {
3736         char *input_buffer;
3737         int status = 0;
3738         struct drm_device *dev;
3739         struct drm_connector *connector;
3740         struct drm_connector_list_iter conn_iter;
3741         struct intel_dp *intel_dp;
3742         int val = 0;
3743
3744         dev = ((struct seq_file *)file->private_data)->private;
3745
3746         if (len == 0)
3747                 return 0;
3748
3749         input_buffer = memdup_user_nul(ubuf, len);
3750         if (IS_ERR(input_buffer))
3751                 return PTR_ERR(input_buffer);
3752
3753         DRM_DEBUG_DRIVER("Copied %d bytes from user\n", (unsigned int)len);
3754
3755         drm_connector_list_iter_begin(dev, &conn_iter);
3756         drm_for_each_connector_iter(connector, &conn_iter) {
3757                 if (connector->connector_type !=
3758                     DRM_MODE_CONNECTOR_DisplayPort)
3759                         continue;
3760
3761                 if (connector->status == connector_status_connected &&
3762                     connector->encoder != NULL) {
3763                         intel_dp = enc_to_intel_dp(connector->encoder);
3764                         status = kstrtoint(input_buffer, 10, &val);
3765                         if (status < 0)
3766                                 break;
3767                         DRM_DEBUG_DRIVER("Got %d for test active\n", val);
3768                         /* To prevent erroneous activation of the compliance
3769                          * testing code, only accept an actual value of 1 here
3770                          */
3771                         if (val == 1)
3772                                 intel_dp->compliance.test_active = 1;
3773                         else
3774                                 intel_dp->compliance.test_active = 0;
3775                 }
3776         }
3777         drm_connector_list_iter_end(&conn_iter);
3778         kfree(input_buffer);
3779         if (status < 0)
3780                 return status;
3781
3782         *offp += len;
3783         return len;
3784 }
3785
3786 static int i915_displayport_test_active_show(struct seq_file *m, void *data)
3787 {
3788         struct drm_device *dev = m->private;
3789         struct drm_connector *connector;
3790         struct drm_connector_list_iter conn_iter;
3791         struct intel_dp *intel_dp;
3792
3793         drm_connector_list_iter_begin(dev, &conn_iter);
3794         drm_for_each_connector_iter(connector, &conn_iter) {
3795                 if (connector->connector_type !=
3796                     DRM_MODE_CONNECTOR_DisplayPort)
3797                         continue;
3798
3799                 if (connector->status == connector_status_connected &&
3800                     connector->encoder != NULL) {
3801                         intel_dp = enc_to_intel_dp(connector->encoder);
3802                         if (intel_dp->compliance.test_active)
3803                                 seq_puts(m, "1");
3804                         else
3805                                 seq_puts(m, "0");
3806                 } else
3807                         seq_puts(m, "0");
3808         }
3809         drm_connector_list_iter_end(&conn_iter);
3810
3811         return 0;
3812 }
3813
3814 static int i915_displayport_test_active_open(struct inode *inode,
3815                                              struct file *file)
3816 {
3817         struct drm_i915_private *dev_priv = inode->i_private;
3818
3819         return single_open(file, i915_displayport_test_active_show,
3820                            &dev_priv->drm);
3821 }
3822
3823 static const struct file_operations i915_displayport_test_active_fops = {
3824         .owner = THIS_MODULE,
3825         .open = i915_displayport_test_active_open,
3826         .read = seq_read,
3827         .llseek = seq_lseek,
3828         .release = single_release,
3829         .write = i915_displayport_test_active_write
3830 };
3831
3832 static int i915_displayport_test_data_show(struct seq_file *m, void *data)
3833 {
3834         struct drm_device *dev = m->private;
3835         struct drm_connector *connector;
3836         struct drm_connector_list_iter conn_iter;
3837         struct intel_dp *intel_dp;
3838
3839         drm_connector_list_iter_begin(dev, &conn_iter);
3840         drm_for_each_connector_iter(connector, &conn_iter) {
3841                 if (connector->connector_type !=
3842                     DRM_MODE_CONNECTOR_DisplayPort)
3843                         continue;
3844
3845                 if (connector->status == connector_status_connected &&
3846                     connector->encoder != NULL) {
3847                         intel_dp = enc_to_intel_dp(connector->encoder);
3848                         if (intel_dp->compliance.test_type ==
3849                             DP_TEST_LINK_EDID_READ)
3850                                 seq_printf(m, "%lx",
3851                                            intel_dp->compliance.test_data.edid);
3852                         else if (intel_dp->compliance.test_type ==
3853                                  DP_TEST_LINK_VIDEO_PATTERN) {
3854                                 seq_printf(m, "hdisplay: %d\n",
3855                                            intel_dp->compliance.test_data.hdisplay);
3856                                 seq_printf(m, "vdisplay: %d\n",
3857                                            intel_dp->compliance.test_data.vdisplay);
3858                                 seq_printf(m, "bpc: %u\n",
3859                                            intel_dp->compliance.test_data.bpc);
3860                         }
3861                 } else
3862                         seq_puts(m, "0");
3863         }
3864         drm_connector_list_iter_end(&conn_iter);
3865
3866         return 0;
3867 }
3868 static int i915_displayport_test_data_open(struct inode *inode,
3869                                            struct file *file)
3870 {
3871         struct drm_i915_private *dev_priv = inode->i_private;
3872
3873         return single_open(file, i915_displayport_test_data_show,
3874                            &dev_priv->drm);
3875 }
3876
3877 static const struct file_operations i915_displayport_test_data_fops = {
3878         .owner = THIS_MODULE,
3879         .open = i915_displayport_test_data_open,
3880         .read = seq_read,
3881         .llseek = seq_lseek,
3882         .release = single_release
3883 };
3884
3885 static int i915_displayport_test_type_show(struct seq_file *m, void *data)
3886 {
3887         struct drm_device *dev = m->private;
3888         struct drm_connector *connector;
3889         struct drm_connector_list_iter conn_iter;
3890         struct intel_dp *intel_dp;
3891
3892         drm_connector_list_iter_begin(dev, &conn_iter);
3893         drm_for_each_connector_iter(connector, &conn_iter) {
3894                 if (connector->connector_type !=
3895                     DRM_MODE_CONNECTOR_DisplayPort)
3896                         continue;
3897
3898                 if (connector->status == connector_status_connected &&
3899                     connector->encoder != NULL) {
3900                         intel_dp = enc_to_intel_dp(connector->encoder);
3901                         seq_printf(m, "%02lx", intel_dp->compliance.test_type);
3902                 } else
3903                         seq_puts(m, "0");
3904         }
3905         drm_connector_list_iter_end(&conn_iter);
3906
3907         return 0;
3908 }
3909
3910 static int i915_displayport_test_type_open(struct inode *inode,
3911                                        struct file *file)
3912 {
3913         struct drm_i915_private *dev_priv = inode->i_private;
3914
3915         return single_open(file, i915_displayport_test_type_show,
3916                            &dev_priv->drm);
3917 }
3918
3919 static const struct file_operations i915_displayport_test_type_fops = {
3920         .owner = THIS_MODULE,
3921         .open = i915_displayport_test_type_open,
3922         .read = seq_read,
3923         .llseek = seq_lseek,
3924         .release = single_release
3925 };
3926
3927 static void wm_latency_show(struct seq_file *m, const uint16_t wm[8])
3928 {
3929         struct drm_i915_private *dev_priv = m->private;
3930         struct drm_device *dev = &dev_priv->drm;
3931         int level;
3932         int num_levels;
3933
3934         if (IS_CHERRYVIEW(dev_priv))
3935                 num_levels = 3;
3936         else if (IS_VALLEYVIEW(dev_priv))
3937                 num_levels = 1;
3938         else if (IS_G4X(dev_priv))
3939                 num_levels = 3;
3940         else
3941                 num_levels = ilk_wm_max_level(dev_priv) + 1;
3942
3943         drm_modeset_lock_all(dev);
3944
3945         for (level = 0; level < num_levels; level++) {
3946                 unsigned int latency = wm[level];
3947
3948                 /*
3949                  * - WM1+ latency values in 0.5us units
3950                  * - latencies are in us on gen9/vlv/chv
3951                  */
3952                 if (INTEL_GEN(dev_priv) >= 9 ||
3953                     IS_VALLEYVIEW(dev_priv) ||
3954                     IS_CHERRYVIEW(dev_priv) ||
3955                     IS_G4X(dev_priv))
3956                         latency *= 10;
3957                 else if (level > 0)
3958                         latency *= 5;
3959
3960                 seq_printf(m, "WM%d %u (%u.%u usec)\n",
3961                            level, wm[level], latency / 10, latency % 10);
3962         }
3963
3964         drm_modeset_unlock_all(dev);
3965 }
3966
3967 static int pri_wm_latency_show(struct seq_file *m, void *data)
3968 {
3969         struct drm_i915_private *dev_priv = m->private;
3970         const uint16_t *latencies;
3971
3972         if (INTEL_GEN(dev_priv) >= 9)
3973                 latencies = dev_priv->wm.skl_latency;
3974         else
3975                 latencies = dev_priv->wm.pri_latency;
3976
3977         wm_latency_show(m, latencies);
3978
3979         return 0;
3980 }
3981
3982 static int spr_wm_latency_show(struct seq_file *m, void *data)
3983 {
3984         struct drm_i915_private *dev_priv = m->private;
3985         const uint16_t *latencies;
3986
3987         if (INTEL_GEN(dev_priv) >= 9)
3988                 latencies = dev_priv->wm.skl_latency;
3989         else
3990                 latencies = dev_priv->wm.spr_latency;
3991
3992         wm_latency_show(m, latencies);
3993
3994         return 0;
3995 }
3996
3997 static int cur_wm_latency_show(struct seq_file *m, void *data)
3998 {
3999         struct drm_i915_private *dev_priv = m->private;
4000         const uint16_t *latencies;
4001
4002         if (INTEL_GEN(dev_priv) >= 9)
4003                 latencies = dev_priv->wm.skl_latency;
4004         else
4005                 latencies = dev_priv->wm.cur_latency;
4006
4007         wm_latency_show(m, latencies);
4008
4009         return 0;
4010 }
4011
4012 static int pri_wm_latency_open(struct inode *inode, struct file *file)
4013 {
4014         struct drm_i915_private *dev_priv = inode->i_private;
4015
4016         if (INTEL_GEN(dev_priv) < 5 && !IS_G4X(dev_priv))
4017                 return -ENODEV;
4018
4019         return single_open(file, pri_wm_latency_show, dev_priv);
4020 }
4021
4022 static int spr_wm_latency_open(struct inode *inode, struct file *file)
4023 {
4024         struct drm_i915_private *dev_priv = inode->i_private;
4025
4026         if (HAS_GMCH_DISPLAY(dev_priv))
4027                 return -ENODEV;
4028
4029         return single_open(file, spr_wm_latency_show, dev_priv);
4030 }
4031
4032 static int cur_wm_latency_open(struct inode *inode, struct file *file)
4033 {
4034         struct drm_i915_private *dev_priv = inode->i_private;
4035
4036         if (HAS_GMCH_DISPLAY(dev_priv))
4037                 return -ENODEV;
4038
4039         return single_open(file, cur_wm_latency_show, dev_priv);
4040 }
4041
4042 static ssize_t wm_latency_write(struct file *file, const char __user *ubuf,
4043                                 size_t len, loff_t *offp, uint16_t wm[8])
4044 {
4045         struct seq_file *m = file->private_data;
4046         struct drm_i915_private *dev_priv = m->private;
4047         struct drm_device *dev = &dev_priv->drm;
4048         uint16_t new[8] = { 0 };
4049         int num_levels;
4050         int level;
4051         int ret;
4052         char tmp[32];
4053
4054         if (IS_CHERRYVIEW(dev_priv))
4055                 num_levels = 3;
4056         else if (IS_VALLEYVIEW(dev_priv))
4057                 num_levels = 1;
4058         else if (IS_G4X(dev_priv))
4059                 num_levels = 3;
4060         else
4061                 num_levels = ilk_wm_max_level(dev_priv) + 1;
4062
4063         if (len >= sizeof(tmp))
4064                 return -EINVAL;
4065
4066         if (copy_from_user(tmp, ubuf, len))
4067                 return -EFAULT;
4068
4069         tmp[len] = '\0';
4070
4071         ret = sscanf(tmp, "%hu %hu %hu %hu %hu %hu %hu %hu",
4072                      &new[0], &new[1], &new[2], &new[3],
4073                      &new[4], &new[5], &new[6], &new[7]);
4074         if (ret != num_levels)
4075                 return -EINVAL;
4076
4077         drm_modeset_lock_all(dev);
4078
4079         for (level = 0; level < num_levels; level++)
4080                 wm[level] = new[level];
4081
4082         drm_modeset_unlock_all(dev);
4083
4084         return len;
4085 }
4086
4087
4088 static ssize_t pri_wm_latency_write(struct file *file, const char __user *ubuf,
4089                                     size_t len, loff_t *offp)
4090 {
4091         struct seq_file *m = file->private_data;
4092         struct drm_i915_private *dev_priv = m->private;
4093         uint16_t *latencies;
4094
4095         if (INTEL_GEN(dev_priv) >= 9)
4096                 latencies = dev_priv->wm.skl_latency;
4097         else
4098                 latencies = dev_priv->wm.pri_latency;
4099
4100         return wm_latency_write(file, ubuf, len, offp, latencies);
4101 }
4102
4103 static ssize_t spr_wm_latency_write(struct file *file, const char __user *ubuf,
4104                                     size_t len, loff_t *offp)
4105 {
4106         struct seq_file *m = file->private_data;
4107         struct drm_i915_private *dev_priv = m->private;
4108         uint16_t *latencies;
4109
4110         if (INTEL_GEN(dev_priv) >= 9)
4111                 latencies = dev_priv->wm.skl_latency;
4112         else
4113                 latencies = dev_priv->wm.spr_latency;
4114
4115         return wm_latency_write(file, ubuf, len, offp, latencies);
4116 }
4117
4118 static ssize_t cur_wm_latency_write(struct file *file, const char __user *ubuf,
4119                                     size_t len, loff_t *offp)
4120 {
4121         struct seq_file *m = file->private_data;
4122         struct drm_i915_private *dev_priv = m->private;
4123         uint16_t *latencies;
4124
4125         if (INTEL_GEN(dev_priv) >= 9)
4126                 latencies = dev_priv->wm.skl_latency;
4127         else
4128                 latencies = dev_priv->wm.cur_latency;
4129
4130         return wm_latency_write(file, ubuf, len, offp, latencies);
4131 }
4132
4133 static const struct file_operations i915_pri_wm_latency_fops = {
4134         .owner = THIS_MODULE,
4135         .open = pri_wm_latency_open,
4136         .read = seq_read,
4137         .llseek = seq_lseek,
4138         .release = single_release,
4139         .write = pri_wm_latency_write
4140 };
4141
4142 static const struct file_operations i915_spr_wm_latency_fops = {
4143         .owner = THIS_MODULE,
4144         .open = spr_wm_latency_open,
4145         .read = seq_read,
4146         .llseek = seq_lseek,
4147         .release = single_release,
4148         .write = spr_wm_latency_write
4149 };
4150
4151 static const struct file_operations i915_cur_wm_latency_fops = {
4152         .owner = THIS_MODULE,
4153         .open = cur_wm_latency_open,
4154         .read = seq_read,
4155         .llseek = seq_lseek,
4156         .release = single_release,
4157         .write = cur_wm_latency_write
4158 };
4159
4160 static int
4161 i915_wedged_get(void *data, u64 *val)
4162 {
4163         struct drm_i915_private *dev_priv = data;
4164
4165         *val = i915_terminally_wedged(&dev_priv->gpu_error);
4166
4167         return 0;
4168 }
4169
4170 static int
4171 i915_wedged_set(void *data, u64 val)
4172 {
4173         struct drm_i915_private *i915 = data;
4174         struct intel_engine_cs *engine;
4175         unsigned int tmp;
4176
4177         /*
4178          * There is no safeguard against this debugfs entry colliding
4179          * with the hangcheck calling same i915_handle_error() in
4180          * parallel, causing an explosion. For now we assume that the
4181          * test harness is responsible enough not to inject gpu hangs
4182          * while it is writing to 'i915_wedged'
4183          */
4184
4185         if (i915_reset_backoff(&i915->gpu_error))
4186                 return -EAGAIN;
4187
4188         for_each_engine_masked(engine, i915, val, tmp) {
4189                 engine->hangcheck.seqno = intel_engine_get_seqno(engine);
4190                 engine->hangcheck.stalled = true;
4191         }
4192
4193         i915_handle_error(i915, val, "Manually setting wedged to %llu", val);
4194
4195         wait_on_bit(&i915->gpu_error.flags,
4196                     I915_RESET_HANDOFF,
4197                     TASK_UNINTERRUPTIBLE);
4198
4199         return 0;
4200 }
4201
4202 DEFINE_SIMPLE_ATTRIBUTE(i915_wedged_fops,
4203                         i915_wedged_get, i915_wedged_set,
4204                         "%llu\n");
4205
4206 static int
4207 fault_irq_set(struct drm_i915_private *i915,
4208               unsigned long *irq,
4209               unsigned long val)
4210 {
4211         int err;
4212
4213         err = mutex_lock_interruptible(&i915->drm.struct_mutex);
4214         if (err)
4215                 return err;
4216
4217         err = i915_gem_wait_for_idle(i915,
4218                                      I915_WAIT_LOCKED |
4219                                      I915_WAIT_INTERRUPTIBLE);
4220         if (err)
4221                 goto err_unlock;
4222
4223         *irq = val;
4224         mutex_unlock(&i915->drm.struct_mutex);
4225
4226         /* Flush idle worker to disarm irq */
4227         while (flush_delayed_work(&i915->gt.idle_work))
4228                 ;
4229
4230         return 0;
4231
4232 err_unlock:
4233         mutex_unlock(&i915->drm.struct_mutex);
4234         return err;
4235 }
4236
4237 static int
4238 i915_ring_missed_irq_get(void *data, u64 *val)
4239 {
4240         struct drm_i915_private *dev_priv = data;
4241
4242         *val = dev_priv->gpu_error.missed_irq_rings;
4243         return 0;
4244 }
4245
4246 static int
4247 i915_ring_missed_irq_set(void *data, u64 val)
4248 {
4249         struct drm_i915_private *i915 = data;
4250
4251         return fault_irq_set(i915, &i915->gpu_error.missed_irq_rings, val);
4252 }
4253
4254 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_missed_irq_fops,
4255                         i915_ring_missed_irq_get, i915_ring_missed_irq_set,
4256                         "0x%08llx\n");
4257
4258 static int
4259 i915_ring_test_irq_get(void *data, u64 *val)
4260 {
4261         struct drm_i915_private *dev_priv = data;
4262
4263         *val = dev_priv->gpu_error.test_irq_rings;
4264
4265         return 0;
4266 }
4267
4268 static int
4269 i915_ring_test_irq_set(void *data, u64 val)
4270 {
4271         struct drm_i915_private *i915 = data;
4272
4273         val &= INTEL_INFO(i915)->ring_mask;
4274         DRM_DEBUG_DRIVER("Masking interrupts on rings 0x%08llx\n", val);
4275
4276         return fault_irq_set(i915, &i915->gpu_error.test_irq_rings, val);
4277 }
4278
4279 DEFINE_SIMPLE_ATTRIBUTE(i915_ring_test_irq_fops,
4280                         i915_ring_test_irq_get, i915_ring_test_irq_set,
4281                         "0x%08llx\n");
4282
4283 #define DROP_UNBOUND 0x1
4284 #define DROP_BOUND 0x2
4285 #define DROP_RETIRE 0x4
4286 #define DROP_ACTIVE 0x8
4287 #define DROP_FREED 0x10
4288 #define DROP_SHRINK_ALL 0x20
4289 #define DROP_ALL (DROP_UNBOUND  | \
4290                   DROP_BOUND    | \
4291                   DROP_RETIRE   | \
4292                   DROP_ACTIVE   | \
4293                   DROP_FREED    | \
4294                   DROP_SHRINK_ALL)
4295 static int
4296 i915_drop_caches_get(void *data, u64 *val)
4297 {
4298         *val = DROP_ALL;
4299
4300         return 0;
4301 }
4302
4303 static int
4304 i915_drop_caches_set(void *data, u64 val)
4305 {
4306         struct drm_i915_private *dev_priv = data;
4307         struct drm_device *dev = &dev_priv->drm;
4308         int ret = 0;
4309
4310         DRM_DEBUG("Dropping caches: 0x%08llx\n", val);
4311
4312         /* No need to check and wait for gpu resets, only libdrm auto-restarts
4313          * on ioctls on -EAGAIN. */
4314         if (val & (DROP_ACTIVE | DROP_RETIRE)) {
4315                 ret = mutex_lock_interruptible(&dev->struct_mutex);
4316                 if (ret)
4317                         return ret;
4318
4319                 if (val & DROP_ACTIVE)
4320                         ret = i915_gem_wait_for_idle(dev_priv,
4321                                                      I915_WAIT_INTERRUPTIBLE |
4322                                                      I915_WAIT_LOCKED);
4323
4324                 if (val & DROP_RETIRE)
4325                         i915_gem_retire_requests(dev_priv);
4326
4327                 mutex_unlock(&dev->struct_mutex);
4328         }
4329
4330         lockdep_set_current_reclaim_state(GFP_KERNEL);
4331         if (val & DROP_BOUND)
4332                 i915_gem_shrink(dev_priv, LONG_MAX, I915_SHRINK_BOUND);
4333
4334         if (val & DROP_UNBOUND)
4335                 i915_gem_shrink(dev_priv, LONG_MAX, I915_SHRINK_UNBOUND);
4336
4337         if (val & DROP_SHRINK_ALL)
4338                 i915_gem_shrink_all(dev_priv);
4339         lockdep_clear_current_reclaim_state();
4340
4341         if (val & DROP_FREED) {
4342                 synchronize_rcu();
4343                 i915_gem_drain_freed_objects(dev_priv);
4344         }
4345
4346         return ret;
4347 }
4348
4349 DEFINE_SIMPLE_ATTRIBUTE(i915_drop_caches_fops,
4350                         i915_drop_caches_get, i915_drop_caches_set,
4351                         "0x%08llx\n");
4352
4353 static int
4354 i915_max_freq_get(void *data, u64 *val)
4355 {
4356         struct drm_i915_private *dev_priv = data;
4357
4358         if (INTEL_GEN(dev_priv) < 6)
4359                 return -ENODEV;
4360
4361         *val = intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit);
4362         return 0;
4363 }
4364
4365 static int
4366 i915_max_freq_set(void *data, u64 val)
4367 {
4368         struct drm_i915_private *dev_priv = data;
4369         u32 hw_max, hw_min;
4370         int ret;
4371
4372         if (INTEL_GEN(dev_priv) < 6)
4373                 return -ENODEV;
4374
4375         DRM_DEBUG_DRIVER("Manually setting max freq to %llu\n", val);
4376
4377         ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
4378         if (ret)
4379                 return ret;
4380
4381         /*
4382          * Turbo will still be enabled, but won't go above the set value.
4383          */
4384         val = intel_freq_opcode(dev_priv, val);
4385
4386         hw_max = dev_priv->rps.max_freq;
4387         hw_min = dev_priv->rps.min_freq;
4388
4389         if (val < hw_min || val > hw_max || val < dev_priv->rps.min_freq_softlimit) {
4390                 mutex_unlock(&dev_priv->rps.hw_lock);
4391                 return -EINVAL;
4392         }
4393
4394         dev_priv->rps.max_freq_softlimit = val;
4395
4396         if (intel_set_rps(dev_priv, val))
4397                 DRM_DEBUG_DRIVER("failed to update RPS to new softlimit\n");
4398
4399         mutex_unlock(&dev_priv->rps.hw_lock);
4400
4401         return 0;
4402 }
4403
4404 DEFINE_SIMPLE_ATTRIBUTE(i915_max_freq_fops,
4405                         i915_max_freq_get, i915_max_freq_set,
4406                         "%llu\n");
4407
4408 static int
4409 i915_min_freq_get(void *data, u64 *val)
4410 {
4411         struct drm_i915_private *dev_priv = data;
4412
4413         if (INTEL_GEN(dev_priv) < 6)
4414                 return -ENODEV;
4415
4416         *val = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit);
4417         return 0;
4418 }
4419
4420 static int
4421 i915_min_freq_set(void *data, u64 val)
4422 {
4423         struct drm_i915_private *dev_priv = data;
4424         u32 hw_max, hw_min;
4425         int ret;
4426
4427         if (INTEL_GEN(dev_priv) < 6)
4428                 return -ENODEV;
4429
4430         DRM_DEBUG_DRIVER("Manually setting min freq to %llu\n", val);
4431
4432         ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
4433         if (ret)
4434                 return ret;
4435
4436         /*
4437          * Turbo will still be enabled, but won't go below the set value.
4438          */
4439         val = intel_freq_opcode(dev_priv, val);
4440
4441         hw_max = dev_priv->rps.max_freq;
4442         hw_min = dev_priv->rps.min_freq;
4443
4444         if (val < hw_min ||
4445             val > hw_max || val > dev_priv->rps.max_freq_softlimit) {
4446                 mutex_unlock(&dev_priv->rps.hw_lock);
4447                 return -EINVAL;
4448         }
4449
4450         dev_priv->rps.min_freq_softlimit = val;
4451
4452         if (intel_set_rps(dev_priv, val))
4453                 DRM_DEBUG_DRIVER("failed to update RPS to new softlimit\n");
4454
4455         mutex_unlock(&dev_priv->rps.hw_lock);
4456
4457         return 0;
4458 }
4459
4460 DEFINE_SIMPLE_ATTRIBUTE(i915_min_freq_fops,
4461                         i915_min_freq_get, i915_min_freq_set,
4462                         "%llu\n");
4463
4464 static int
4465 i915_cache_sharing_get(void *data, u64 *val)
4466 {
4467         struct drm_i915_private *dev_priv = data;
4468         u32 snpcr;
4469
4470         if (!(IS_GEN6(dev_priv) || IS_GEN7(dev_priv)))
4471                 return -ENODEV;
4472
4473         intel_runtime_pm_get(dev_priv);
4474
4475         snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
4476
4477         intel_runtime_pm_put(dev_priv);
4478
4479         *val = (snpcr & GEN6_MBC_SNPCR_MASK) >> GEN6_MBC_SNPCR_SHIFT;
4480
4481         return 0;
4482 }
4483
4484 static int
4485 i915_cache_sharing_set(void *data, u64 val)
4486 {
4487         struct drm_i915_private *dev_priv = data;
4488         u32 snpcr;
4489
4490         if (!(IS_GEN6(dev_priv) || IS_GEN7(dev_priv)))
4491                 return -ENODEV;
4492
4493         if (val > 3)
4494                 return -EINVAL;
4495
4496         intel_runtime_pm_get(dev_priv);
4497         DRM_DEBUG_DRIVER("Manually setting uncore sharing to %llu\n", val);
4498
4499         /* Update the cache sharing policy here as well */
4500         snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
4501         snpcr &= ~GEN6_MBC_SNPCR_MASK;
4502         snpcr |= (val << GEN6_MBC_SNPCR_SHIFT);
4503         I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr);
4504
4505         intel_runtime_pm_put(dev_priv);
4506         return 0;
4507 }
4508
4509 DEFINE_SIMPLE_ATTRIBUTE(i915_cache_sharing_fops,
4510                         i915_cache_sharing_get, i915_cache_sharing_set,
4511                         "%llu\n");
4512
4513 static void cherryview_sseu_device_status(struct drm_i915_private *dev_priv,
4514                                           struct sseu_dev_info *sseu)
4515 {
4516         int ss_max = 2;
4517         int ss;
4518         u32 sig1[ss_max], sig2[ss_max];
4519
4520         sig1[0] = I915_READ(CHV_POWER_SS0_SIG1);
4521         sig1[1] = I915_READ(CHV_POWER_SS1_SIG1);
4522         sig2[0] = I915_READ(CHV_POWER_SS0_SIG2);
4523         sig2[1] = I915_READ(CHV_POWER_SS1_SIG2);
4524
4525         for (ss = 0; ss < ss_max; ss++) {
4526                 unsigned int eu_cnt;
4527
4528                 if (sig1[ss] & CHV_SS_PG_ENABLE)
4529                         /* skip disabled subslice */
4530                         continue;
4531
4532                 sseu->slice_mask = BIT(0);
4533                 sseu->subslice_mask |= BIT(ss);
4534                 eu_cnt = ((sig1[ss] & CHV_EU08_PG_ENABLE) ? 0 : 2) +
4535                          ((sig1[ss] & CHV_EU19_PG_ENABLE) ? 0 : 2) +
4536                          ((sig1[ss] & CHV_EU210_PG_ENABLE) ? 0 : 2) +
4537                          ((sig2[ss] & CHV_EU311_PG_ENABLE) ? 0 : 2);
4538                 sseu->eu_total += eu_cnt;
4539                 sseu->eu_per_subslice = max_t(unsigned int,
4540                                               sseu->eu_per_subslice, eu_cnt);
4541         }
4542 }
4543
4544 static void gen9_sseu_device_status(struct drm_i915_private *dev_priv,
4545                                     struct sseu_dev_info *sseu)
4546 {
4547         int s_max = 3, ss_max = 4;
4548         int s, ss;
4549         u32 s_reg[s_max], eu_reg[2*s_max], eu_mask[2];
4550
4551         /* BXT has a single slice and at most 3 subslices. */
4552         if (IS_GEN9_LP(dev_priv)) {
4553                 s_max = 1;
4554                 ss_max = 3;
4555         }
4556
4557         for (s = 0; s < s_max; s++) {
4558                 s_reg[s] = I915_READ(GEN9_SLICE_PGCTL_ACK(s));
4559                 eu_reg[2*s] = I915_READ(GEN9_SS01_EU_PGCTL_ACK(s));
4560                 eu_reg[2*s + 1] = I915_READ(GEN9_SS23_EU_PGCTL_ACK(s));
4561         }
4562
4563         eu_mask[0] = GEN9_PGCTL_SSA_EU08_ACK |
4564                      GEN9_PGCTL_SSA_EU19_ACK |
4565                      GEN9_PGCTL_SSA_EU210_ACK |
4566                      GEN9_PGCTL_SSA_EU311_ACK;
4567         eu_mask[1] = GEN9_PGCTL_SSB_EU08_ACK |
4568                      GEN9_PGCTL_SSB_EU19_ACK |
4569                      GEN9_PGCTL_SSB_EU210_ACK |
4570                      GEN9_PGCTL_SSB_EU311_ACK;
4571
4572         for (s = 0; s < s_max; s++) {
4573                 if ((s_reg[s] & GEN9_PGCTL_SLICE_ACK) == 0)
4574                         /* skip disabled slice */
4575                         continue;
4576
4577                 sseu->slice_mask |= BIT(s);
4578
4579                 if (IS_GEN9_BC(dev_priv))
4580                         sseu->subslice_mask =
4581                                 INTEL_INFO(dev_priv)->sseu.subslice_mask;
4582
4583                 for (ss = 0; ss < ss_max; ss++) {
4584                         unsigned int eu_cnt;
4585
4586                         if (IS_GEN9_LP(dev_priv)) {
4587                                 if (!(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss))))
4588                                         /* skip disabled subslice */
4589                                         continue;
4590
4591                                 sseu->subslice_mask |= BIT(ss);
4592                         }
4593
4594                         eu_cnt = 2 * hweight32(eu_reg[2*s + ss/2] &
4595                                                eu_mask[ss%2]);
4596                         sseu->eu_total += eu_cnt;
4597                         sseu->eu_per_subslice = max_t(unsigned int,
4598                                                       sseu->eu_per_subslice,
4599                                                       eu_cnt);
4600                 }
4601         }
4602 }
4603
4604 static void broadwell_sseu_device_status(struct drm_i915_private *dev_priv,
4605                                          struct sseu_dev_info *sseu)
4606 {
4607         u32 slice_info = I915_READ(GEN8_GT_SLICE_INFO);
4608         int s;
4609
4610         sseu->slice_mask = slice_info & GEN8_LSLICESTAT_MASK;
4611
4612         if (sseu->slice_mask) {
4613                 sseu->subslice_mask = INTEL_INFO(dev_priv)->sseu.subslice_mask;
4614                 sseu->eu_per_subslice =
4615                                 INTEL_INFO(dev_priv)->sseu.eu_per_subslice;
4616                 sseu->eu_total = sseu->eu_per_subslice *
4617                                  sseu_subslice_total(sseu);
4618
4619                 /* subtract fused off EU(s) from enabled slice(s) */
4620                 for (s = 0; s < fls(sseu->slice_mask); s++) {
4621                         u8 subslice_7eu =
4622                                 INTEL_INFO(dev_priv)->sseu.subslice_7eu[s];
4623
4624                         sseu->eu_total -= hweight8(subslice_7eu);
4625                 }
4626         }
4627 }
4628
4629 static void i915_print_sseu_info(struct seq_file *m, bool is_available_info,
4630                                  const struct sseu_dev_info *sseu)
4631 {
4632         struct drm_i915_private *dev_priv = node_to_i915(m->private);
4633         const char *type = is_available_info ? "Available" : "Enabled";
4634
4635         seq_printf(m, "  %s Slice Mask: %04x\n", type,
4636                    sseu->slice_mask);
4637         seq_printf(m, "  %s Slice Total: %u\n", type,
4638                    hweight8(sseu->slice_mask));
4639         seq_printf(m, "  %s Subslice Total: %u\n", type,
4640                    sseu_subslice_total(sseu));
4641         seq_printf(m, "  %s Subslice Mask: %04x\n", type,
4642                    sseu->subslice_mask);
4643         seq_printf(m, "  %s Subslice Per Slice: %u\n", type,
4644                    hweight8(sseu->subslice_mask));
4645         seq_printf(m, "  %s EU Total: %u\n", type,
4646                    sseu->eu_total);
4647         seq_printf(m, "  %s EU Per Subslice: %u\n", type,
4648                    sseu->eu_per_subslice);
4649
4650         if (!is_available_info)
4651                 return;
4652
4653         seq_printf(m, "  Has Pooled EU: %s\n", yesno(HAS_POOLED_EU(dev_priv)));
4654         if (HAS_POOLED_EU(dev_priv))
4655                 seq_printf(m, "  Min EU in pool: %u\n", sseu->min_eu_in_pool);
4656
4657         seq_printf(m, "  Has Slice Power Gating: %s\n",
4658                    yesno(sseu->has_slice_pg));
4659         seq_printf(m, "  Has Subslice Power Gating: %s\n",
4660                    yesno(sseu->has_subslice_pg));
4661         seq_printf(m, "  Has EU Power Gating: %s\n",
4662                    yesno(sseu->has_eu_pg));
4663 }
4664
4665 static int i915_sseu_status(struct seq_file *m, void *unused)
4666 {
4667         struct drm_i915_private *dev_priv = node_to_i915(m->private);
4668         struct sseu_dev_info sseu;
4669
4670         if (INTEL_GEN(dev_priv) < 8)
4671                 return -ENODEV;
4672
4673         seq_puts(m, "SSEU Device Info\n");
4674         i915_print_sseu_info(m, true, &INTEL_INFO(dev_priv)->sseu);
4675
4676         seq_puts(m, "SSEU Device Status\n");
4677         memset(&sseu, 0, sizeof(sseu));
4678
4679         intel_runtime_pm_get(dev_priv);
4680
4681         if (IS_CHERRYVIEW(dev_priv)) {
4682                 cherryview_sseu_device_status(dev_priv, &sseu);
4683         } else if (IS_BROADWELL(dev_priv)) {
4684                 broadwell_sseu_device_status(dev_priv, &sseu);
4685         } else if (INTEL_GEN(dev_priv) >= 9) {
4686                 gen9_sseu_device_status(dev_priv, &sseu);
4687         }
4688
4689         intel_runtime_pm_put(dev_priv);
4690
4691         i915_print_sseu_info(m, false, &sseu);
4692
4693         return 0;
4694 }
4695
4696 static int i915_forcewake_open(struct inode *inode, struct file *file)
4697 {
4698         struct drm_i915_private *dev_priv = inode->i_private;
4699
4700         if (INTEL_GEN(dev_priv) < 6)
4701                 return 0;
4702
4703         intel_runtime_pm_get(dev_priv);
4704         intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
4705
4706         return 0;
4707 }
4708
4709 static int i915_forcewake_release(struct inode *inode, struct file *file)
4710 {
4711         struct drm_i915_private *dev_priv = inode->i_private;
4712
4713         if (INTEL_GEN(dev_priv) < 6)
4714                 return 0;
4715
4716         intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
4717         intel_runtime_pm_put(dev_priv);
4718
4719         return 0;
4720 }
4721
4722 static const struct file_operations i915_forcewake_fops = {
4723         .owner = THIS_MODULE,
4724         .open = i915_forcewake_open,
4725         .release = i915_forcewake_release,
4726 };
4727
4728 static int i915_hpd_storm_ctl_show(struct seq_file *m, void *data)
4729 {
4730         struct drm_i915_private *dev_priv = m->private;
4731         struct i915_hotplug *hotplug = &dev_priv->hotplug;
4732
4733         seq_printf(m, "Threshold: %d\n", hotplug->hpd_storm_threshold);
4734         seq_printf(m, "Detected: %s\n",
4735                    yesno(delayed_work_pending(&hotplug->reenable_work)));
4736
4737         return 0;
4738 }
4739
4740 static ssize_t i915_hpd_storm_ctl_write(struct file *file,
4741                                         const char __user *ubuf, size_t len,
4742                                         loff_t *offp)
4743 {
4744         struct seq_file *m = file->private_data;
4745         struct drm_i915_private *dev_priv = m->private;
4746         struct i915_hotplug *hotplug = &dev_priv->hotplug;
4747         unsigned int new_threshold;
4748         int i;
4749         char *newline;
4750         char tmp[16];
4751
4752         if (len >= sizeof(tmp))
4753                 return -EINVAL;
4754
4755         if (copy_from_user(tmp, ubuf, len))
4756                 return -EFAULT;
4757
4758         tmp[len] = '\0';
4759
4760         /* Strip newline, if any */
4761         newline = strchr(tmp, '\n');
4762         if (newline)
4763                 *newline = '\0';
4764
4765         if (strcmp(tmp, "reset") == 0)
4766                 new_threshold = HPD_STORM_DEFAULT_THRESHOLD;
4767         else if (kstrtouint(tmp, 10, &new_threshold) != 0)
4768                 return -EINVAL;
4769
4770         if (new_threshold > 0)
4771                 DRM_DEBUG_KMS("Setting HPD storm detection threshold to %d\n",
4772                               new_threshold);
4773         else
4774                 DRM_DEBUG_KMS("Disabling HPD storm detection\n");
4775
4776         spin_lock_irq(&dev_priv->irq_lock);
4777         hotplug->hpd_storm_threshold = new_threshold;
4778         /* Reset the HPD storm stats so we don't accidentally trigger a storm */
4779         for_each_hpd_pin(i)
4780                 hotplug->stats[i].count = 0;
4781         spin_unlock_irq(&dev_priv->irq_lock);
4782
4783         /* Re-enable hpd immediately if we were in an irq storm */
4784         flush_delayed_work(&dev_priv->hotplug.reenable_work);
4785
4786         return len;
4787 }
4788
4789 static int i915_hpd_storm_ctl_open(struct inode *inode, struct file *file)
4790 {
4791         return single_open(file, i915_hpd_storm_ctl_show, inode->i_private);
4792 }
4793
4794 static const struct file_operations i915_hpd_storm_ctl_fops = {
4795         .owner = THIS_MODULE,
4796         .open = i915_hpd_storm_ctl_open,
4797         .read = seq_read,
4798         .llseek = seq_lseek,
4799         .release = single_release,
4800         .write = i915_hpd_storm_ctl_write
4801 };
4802
4803 static const struct drm_info_list i915_debugfs_list[] = {
4804         {"i915_capabilities", i915_capabilities, 0},
4805         {"i915_gem_objects", i915_gem_object_info, 0},
4806         {"i915_gem_gtt", i915_gem_gtt_info, 0},
4807         {"i915_gem_pin_display", i915_gem_gtt_info, 0, (void *)1},
4808         {"i915_gem_stolen", i915_gem_stolen_list_info },
4809         {"i915_gem_pageflip", i915_gem_pageflip_info, 0},
4810         {"i915_gem_request", i915_gem_request_info, 0},
4811         {"i915_gem_seqno", i915_gem_seqno_info, 0},
4812         {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
4813         {"i915_gem_interrupt", i915_interrupt_info, 0},
4814         {"i915_gem_batch_pool", i915_gem_batch_pool_info, 0},
4815         {"i915_guc_info", i915_guc_info, 0},
4816         {"i915_guc_load_status", i915_guc_load_status_info, 0},
4817         {"i915_guc_log_dump", i915_guc_log_dump, 0},
4818         {"i915_guc_load_err_log_dump", i915_guc_log_dump, 0, (void *)1},
4819         {"i915_guc_stage_pool", i915_guc_stage_pool, 0},
4820         {"i915_huc_load_status", i915_huc_load_status_info, 0},
4821         {"i915_frequency_info", i915_frequency_info, 0},
4822         {"i915_hangcheck_info", i915_hangcheck_info, 0},
4823         {"i915_drpc_info", i915_drpc_info, 0},
4824         {"i915_emon_status", i915_emon_status, 0},
4825         {"i915_ring_freq_table", i915_ring_freq_table, 0},
4826         {"i915_frontbuffer_tracking", i915_frontbuffer_tracking, 0},
4827         {"i915_fbc_status", i915_fbc_status, 0},
4828         {"i915_ips_status", i915_ips_status, 0},
4829         {"i915_sr_status", i915_sr_status, 0},
4830         {"i915_opregion", i915_opregion, 0},
4831         {"i915_vbt", i915_vbt, 0},
4832         {"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
4833         {"i915_context_status", i915_context_status, 0},
4834         {"i915_dump_lrc", i915_dump_lrc, 0},
4835         {"i915_forcewake_domains", i915_forcewake_domains, 0},
4836         {"i915_swizzle_info", i915_swizzle_info, 0},
4837         {"i915_ppgtt_info", i915_ppgtt_info, 0},
4838         {"i915_llc", i915_llc, 0},
4839         {"i915_edp_psr_status", i915_edp_psr_status, 0},
4840         {"i915_sink_crc_eDP1", i915_sink_crc, 0},
4841         {"i915_energy_uJ", i915_energy_uJ, 0},
4842         {"i915_runtime_pm_status", i915_runtime_pm_status, 0},
4843         {"i915_power_domain_info", i915_power_domain_info, 0},
4844         {"i915_dmc_info", i915_dmc_info, 0},
4845         {"i915_display_info", i915_display_info, 0},
4846         {"i915_engine_info", i915_engine_info, 0},
4847         {"i915_semaphore_status", i915_semaphore_status, 0},
4848         {"i915_shared_dplls_info", i915_shared_dplls_info, 0},
4849         {"i915_dp_mst_info", i915_dp_mst_info, 0},
4850         {"i915_wa_registers", i915_wa_registers, 0},
4851         {"i915_ddb_info", i915_ddb_info, 0},
4852         {"i915_sseu_status", i915_sseu_status, 0},
4853         {"i915_drrs_status", i915_drrs_status, 0},
4854         {"i915_rps_boost_info", i915_rps_boost_info, 0},
4855 };
4856 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
4857
4858 static const struct i915_debugfs_files {
4859         const char *name;
4860         const struct file_operations *fops;
4861 } i915_debugfs_files[] = {
4862         {"i915_wedged", &i915_wedged_fops},
4863         {"i915_max_freq", &i915_max_freq_fops},
4864         {"i915_min_freq", &i915_min_freq_fops},
4865         {"i915_cache_sharing", &i915_cache_sharing_fops},
4866         {"i915_ring_missed_irq", &i915_ring_missed_irq_fops},
4867         {"i915_ring_test_irq", &i915_ring_test_irq_fops},
4868         {"i915_gem_drop_caches", &i915_drop_caches_fops},
4869 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
4870         {"i915_error_state", &i915_error_state_fops},
4871         {"i915_gpu_info", &i915_gpu_info_fops},
4872 #endif
4873         {"i915_next_seqno", &i915_next_seqno_fops},
4874         {"i915_display_crc_ctl", &i915_display_crc_ctl_fops},
4875         {"i915_pri_wm_latency", &i915_pri_wm_latency_fops},
4876         {"i915_spr_wm_latency", &i915_spr_wm_latency_fops},
4877         {"i915_cur_wm_latency", &i915_cur_wm_latency_fops},
4878         {"i915_fbc_false_color", &i915_fbc_false_color_fops},
4879         {"i915_dp_test_data", &i915_displayport_test_data_fops},
4880         {"i915_dp_test_type", &i915_displayport_test_type_fops},
4881         {"i915_dp_test_active", &i915_displayport_test_active_fops},
4882         {"i915_guc_log_control", &i915_guc_log_control_fops},
4883         {"i915_hpd_storm_ctl", &i915_hpd_storm_ctl_fops}
4884 };
4885
4886 int i915_debugfs_register(struct drm_i915_private *dev_priv)
4887 {
4888         struct drm_minor *minor = dev_priv->drm.primary;
4889         struct dentry *ent;
4890         int ret, i;
4891
4892         ent = debugfs_create_file("i915_forcewake_user", S_IRUSR,
4893                                   minor->debugfs_root, to_i915(minor->dev),
4894                                   &i915_forcewake_fops);
4895         if (!ent)
4896                 return -ENOMEM;
4897
4898         ret = intel_pipe_crc_create(minor);
4899         if (ret)
4900                 return ret;
4901
4902         for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
4903                 ent = debugfs_create_file(i915_debugfs_files[i].name,
4904                                           S_IRUGO | S_IWUSR,
4905                                           minor->debugfs_root,
4906                                           to_i915(minor->dev),
4907                                           i915_debugfs_files[i].fops);
4908                 if (!ent)
4909                         return -ENOMEM;
4910         }
4911
4912         return drm_debugfs_create_files(i915_debugfs_list,
4913                                         I915_DEBUGFS_ENTRIES,
4914                                         minor->debugfs_root, minor);
4915 }
4916
4917 struct dpcd_block {
4918         /* DPCD dump start address. */
4919         unsigned int offset;
4920         /* DPCD dump end address, inclusive. If unset, .size will be used. */
4921         unsigned int end;
4922         /* DPCD dump size. Used if .end is unset. If unset, defaults to 1. */
4923         size_t size;
4924         /* Only valid for eDP. */
4925         bool edp;
4926 };
4927
4928 static const struct dpcd_block i915_dpcd_debug[] = {
4929         { .offset = DP_DPCD_REV, .size = DP_RECEIVER_CAP_SIZE },
4930         { .offset = DP_PSR_SUPPORT, .end = DP_PSR_CAPS },
4931         { .offset = DP_DOWNSTREAM_PORT_0, .size = 16 },
4932         { .offset = DP_LINK_BW_SET, .end = DP_EDP_CONFIGURATION_SET },
4933         { .offset = DP_SINK_COUNT, .end = DP_ADJUST_REQUEST_LANE2_3 },
4934         { .offset = DP_SET_POWER },
4935         { .offset = DP_EDP_DPCD_REV },
4936         { .offset = DP_EDP_GENERAL_CAP_1, .end = DP_EDP_GENERAL_CAP_3 },
4937         { .offset = DP_EDP_DISPLAY_CONTROL_REGISTER, .end = DP_EDP_BACKLIGHT_FREQ_CAP_MAX_LSB },
4938         { .offset = DP_EDP_DBC_MINIMUM_BRIGHTNESS_SET, .end = DP_EDP_DBC_MAXIMUM_BRIGHTNESS_SET },
4939 };
4940
4941 static int i915_dpcd_show(struct seq_file *m, void *data)
4942 {
4943         struct drm_connector *connector = m->private;
4944         struct intel_dp *intel_dp =
4945                 enc_to_intel_dp(&intel_attached_encoder(connector)->base);
4946         uint8_t buf[16];
4947         ssize_t err;
4948         int i;
4949
4950         if (connector->status != connector_status_connected)
4951                 return -ENODEV;
4952
4953         for (i = 0; i < ARRAY_SIZE(i915_dpcd_debug); i++) {
4954                 const struct dpcd_block *b = &i915_dpcd_debug[i];
4955                 size_t size = b->end ? b->end - b->offset + 1 : (b->size ?: 1);
4956
4957                 if (b->edp &&
4958                     connector->connector_type != DRM_MODE_CONNECTOR_eDP)
4959                         continue;
4960
4961                 /* low tech for now */
4962                 if (WARN_ON(size > sizeof(buf)))
4963                         continue;
4964
4965                 err = drm_dp_dpcd_read(&intel_dp->aux, b->offset, buf, size);
4966                 if (err <= 0) {
4967                         DRM_ERROR("dpcd read (%zu bytes at %u) failed (%zd)\n",
4968                                   size, b->offset, err);
4969                         continue;
4970                 }
4971
4972                 seq_printf(m, "%04x: %*ph\n", b->offset, (int) size, buf);
4973         }
4974
4975         return 0;
4976 }
4977
4978 static int i915_dpcd_open(struct inode *inode, struct file *file)
4979 {
4980         return single_open(file, i915_dpcd_show, inode->i_private);
4981 }
4982
4983 static const struct file_operations i915_dpcd_fops = {
4984         .owner = THIS_MODULE,
4985         .open = i915_dpcd_open,
4986         .read = seq_read,
4987         .llseek = seq_lseek,
4988         .release = single_release,
4989 };
4990
4991 static int i915_panel_show(struct seq_file *m, void *data)
4992 {
4993         struct drm_connector *connector = m->private;
4994         struct intel_dp *intel_dp =
4995                 enc_to_intel_dp(&intel_attached_encoder(connector)->base);
4996
4997         if (connector->status != connector_status_connected)
4998                 return -ENODEV;
4999
5000         seq_printf(m, "Panel power up delay: %d\n",
5001                    intel_dp->panel_power_up_delay);
5002         seq_printf(m, "Panel power down delay: %d\n",
5003                    intel_dp->panel_power_down_delay);
5004         seq_printf(m, "Backlight on delay: %d\n",
5005                    intel_dp->backlight_on_delay);
5006         seq_printf(m, "Backlight off delay: %d\n",
5007                    intel_dp->backlight_off_delay);
5008
5009         return 0;
5010 }
5011
5012 static int i915_panel_open(struct inode *inode, struct file *file)
5013 {
5014         return single_open(file, i915_panel_show, inode->i_private);
5015 }
5016
5017 static const struct file_operations i915_panel_fops = {
5018         .owner = THIS_MODULE,
5019         .open = i915_panel_open,
5020         .read = seq_read,
5021         .llseek = seq_lseek,
5022         .release = single_release,
5023 };
5024
5025 /**
5026  * i915_debugfs_connector_add - add i915 specific connector debugfs files
5027  * @connector: pointer to a registered drm_connector
5028  *
5029  * Cleanup will be done by drm_connector_unregister() through a call to
5030  * drm_debugfs_connector_remove().
5031  *
5032  * Returns 0 on success, negative error codes on error.
5033  */
5034 int i915_debugfs_connector_add(struct drm_connector *connector)
5035 {
5036         struct dentry *root = connector->debugfs_entry;
5037
5038         /* The connector must have been registered beforehands. */
5039         if (!root)
5040                 return -ENODEV;
5041
5042         if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
5043             connector->connector_type == DRM_MODE_CONNECTOR_eDP)
5044                 debugfs_create_file("i915_dpcd", S_IRUGO, root,
5045                                     connector, &i915_dpcd_fops);
5046
5047         if (connector->connector_type == DRM_MODE_CONNECTOR_eDP)
5048                 debugfs_create_file("i915_panel_timings", S_IRUGO, root,
5049                                     connector, &i915_panel_fops);
5050
5051         return 0;
5052 }