drivers/gpu/drm/msm/msm_drv.c

   1 /*
   2  * Copyright (C) 2013 Red Hat
   3  * Author: Rob Clark <robdclark@gmail.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 as published by
   7  * the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include "msm_drv.h"
  19 #include "msm_gpu.h"
  20
  21 static void msm_fb_output_poll_changed(struct drm_device *dev)
  22 {
  23         struct msm_drm_private *priv = dev->dev_private;
  24         if (priv->fbdev)
  25                 drm_fb_helper_hotplug_event(priv->fbdev);
  26 }
  27
  28 static const struct drm_mode_config_funcs mode_config_funcs = {
  29         .fb_create = msm_framebuffer_create,
  30         .output_poll_changed = msm_fb_output_poll_changed,
  31 };
  32
  33 static int msm_fault_handler(struct iommu_domain *iommu, struct device *dev,
  34                 unsigned long iova, int flags, void *arg)
  35 {
  36         DBG("*** fault: iova=%08lx, flags=%d", iova, flags);
  37         return 0;
  38 }
  39
  40 int msm_register_iommu(struct drm_device *dev, struct iommu_domain *iommu)
  41 {
  42         struct msm_drm_private *priv = dev->dev_private;
  43         int idx = priv->num_iommus++;
  44
  45         if (WARN_ON(idx >= ARRAY_SIZE(priv->iommus)))
  46                 return -EINVAL;
  47
  48         priv->iommus[idx] = iommu;
  49
  50         iommu_set_fault_handler(iommu, msm_fault_handler, dev);
  51
  52         /* need to iommu_attach_device() somewhere??  on resume?? */
  53
  54         return idx;
  55 }
  56
  57 int msm_iommu_attach(struct drm_device *dev, struct iommu_domain *iommu,
  58                 const char **names, int cnt)
  59 {
  60         int i, ret;
  61
  62         for (i = 0; i < cnt; i++) {
  63                 /* TODO maybe some day msm iommu won't require this hack: */
  64                 struct device *msm_iommu_get_ctx(const char *ctx_name);
  65                 struct device *ctx = msm_iommu_get_ctx(names[i]);
  66                 if (!ctx)
  67                         continue;
  68                 ret = iommu_attach_device(iommu, ctx);
  69                 if (ret) {
  70                         dev_warn(dev->dev, "could not attach iommu to %s", names[i]);
  71                         return ret;
  72                 }
  73         }
  74         return 0;
  75 }
  76
  77 #ifdef CONFIG_DRM_MSM_REGISTER_LOGGING
  78 static bool reglog = false;
  79 MODULE_PARM_DESC(reglog, "Enable register read/write logging");
  80 module_param(reglog, bool, 0600);
  81 #else
  82 #define reglog 0
  83 #endif
  84
  85 void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
  86                 const char *dbgname)
  87 {
  88         struct resource *res;
  89         unsigned long size;
  90         void __iomem *ptr;
  91
  92         if (name)
  93                 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
  94         else
  95                 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
  96
  97         if (!res) {
  98                 dev_err(&pdev->dev, "failed to get memory resource: %s\n", name);
  99                 return ERR_PTR(-EINVAL);
 100         }
 101
 102         size = resource_size(res);
 103
 104         ptr = devm_ioremap_nocache(&pdev->dev, res->start, size);
 105         if (!ptr) {
 106                 dev_err(&pdev->dev, "failed to ioremap: %s\n", name);
 107                 return ERR_PTR(-ENOMEM);
 108         }
 109
 110         if (reglog)
 111                 printk(KERN_DEBUG "IO:region %s %08x %08lx\n", dbgname, (u32)ptr, size);
 112
 113         return ptr;
 114 }
 115
 116 void msm_writel(u32 data, void __iomem *addr)
 117 {
 118         if (reglog)
 119                 printk(KERN_DEBUG "IO:W %08x %08x\n", (u32)addr, data);
 120         writel(data, addr);
 121 }
 122
 123 u32 msm_readl(const void __iomem *addr)
 124 {
 125         u32 val = readl(addr);
 126         if (reglog)
 127                 printk(KERN_ERR "IO:R %08x %08x\n", (u32)addr, val);
 128         return val;
 129 }
 130
 131 /*
 132  * DRM operations:
 133  */
 134
 135 static int msm_unload(struct drm_device *dev)
 136 {
 137         struct msm_drm_private *priv = dev->dev_private;
 138         struct msm_kms *kms = priv->kms;
 139         struct msm_gpu *gpu = priv->gpu;
 140
 141         drm_kms_helper_poll_fini(dev);
 142         drm_mode_config_cleanup(dev);
 143         drm_vblank_cleanup(dev);
 144
 145         pm_runtime_get_sync(dev->dev);
 146         drm_irq_uninstall(dev);
 147         pm_runtime_put_sync(dev->dev);
 148
 149         flush_workqueue(priv->wq);
 150         destroy_workqueue(priv->wq);
 151
 152         if (kms) {
 153                 pm_runtime_disable(dev->dev);
 154                 kms->funcs->destroy(kms);
 155         }
 156
 157         if (gpu) {
 158                 mutex_lock(&dev->struct_mutex);
 159                 gpu->funcs->pm_suspend(gpu);
 160                 gpu->funcs->destroy(gpu);
 161                 mutex_unlock(&dev->struct_mutex);
 162         }
 163
 164         dev->dev_private = NULL;
 165
 166         kfree(priv);
 167
 168         return 0;
 169 }
 170
 171 static int msm_load(struct drm_device *dev, unsigned long flags)
 172 {
 173         struct platform_device *pdev = dev->platformdev;
 174         struct msm_drm_private *priv;
 175         struct msm_kms *kms;
 176         int ret;
 177
 178         priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 179         if (!priv) {
 180                 dev_err(dev->dev, "failed to allocate private data\n");
 181                 return -ENOMEM;
 182         }
 183
 184         dev->dev_private = priv;
 185
 186         priv->wq = alloc_ordered_workqueue("msm", 0);
 187         init_waitqueue_head(&priv->fence_event);
 188
 189         INIT_LIST_HEAD(&priv->inactive_list);
 190         INIT_LIST_HEAD(&priv->fence_cbs);
 191
 192         drm_mode_config_init(dev);
 193
 194         kms = mdp4_kms_init(dev);
 195         if (IS_ERR(kms)) {
 196                 /*
 197                  * NOTE: once we have GPU support, having no kms should not
 198                  * be considered fatal.. ideally we would still support gpu
 199                  * and (for example) use dmabuf/prime to share buffers with
 200                  * imx drm driver on iMX5
 201                  */
 202                 dev_err(dev->dev, "failed to load kms\n");
 203                 ret = PTR_ERR(kms);
 204                 goto fail;
 205         }
 206
 207         priv->kms = kms;
 208
 209         if (kms) {
 210                 pm_runtime_enable(dev->dev);
 211                 ret = kms->funcs->hw_init(kms);
 212                 if (ret) {
 213                         dev_err(dev->dev, "kms hw init failed: %d\n", ret);
 214                         goto fail;
 215                 }
 216         }
 217
 218         dev->mode_config.min_width = 0;
 219         dev->mode_config.min_height = 0;
 220         dev->mode_config.max_width = 2048;
 221         dev->mode_config.max_height = 2048;
 222         dev->mode_config.funcs = &mode_config_funcs;
 223
 224         ret = drm_vblank_init(dev, 1);
 225         if (ret < 0) {
 226                 dev_err(dev->dev, "failed to initialize vblank\n");
 227                 goto fail;
 228         }
 229
 230         pm_runtime_get_sync(dev->dev);
 231         ret = drm_irq_install(dev);
 232         pm_runtime_put_sync(dev->dev);
 233         if (ret < 0) {
 234                 dev_err(dev->dev, "failed to install IRQ handler\n");
 235                 goto fail;
 236         }
 237
 238         platform_set_drvdata(pdev, dev);
 239
 240 #ifdef CONFIG_DRM_MSM_FBDEV
 241         priv->fbdev = msm_fbdev_init(dev);
 242 #endif
 243
 244         drm_kms_helper_poll_init(dev);
 245
 246         return 0;
 247
 248 fail:
 249         msm_unload(dev);
 250         return ret;
 251 }
 252
 253 static void load_gpu(struct drm_device *dev)
 254 {
 255         struct msm_drm_private *priv = dev->dev_private;
 256         struct msm_gpu *gpu;
 257
 258         if (priv->gpu)
 259                 return;
 260
 261         mutex_lock(&dev->struct_mutex);
 262         gpu = a3xx_gpu_init(dev);
 263         if (IS_ERR(gpu)) {
 264                 dev_warn(dev->dev, "failed to load a3xx gpu\n");
 265                 gpu = NULL;
 266                 /* not fatal */
 267         }
 268         mutex_unlock(&dev->struct_mutex);
 269
 270         if (gpu) {
 271                 int ret;
 272                 gpu->funcs->pm_resume(gpu);
 273                 ret = gpu->funcs->hw_init(gpu);
 274                 if (ret) {
 275                         dev_err(dev->dev, "gpu hw init failed: %d\n", ret);
 276                         gpu->funcs->destroy(gpu);
 277                         gpu = NULL;
 278                 }
 279         }
 280
 281         priv->gpu = gpu;
 282 }
 283
 284 static int msm_open(struct drm_device *dev, struct drm_file *file)
 285 {
 286         struct msm_file_private *ctx;
 287
 288         /* For now, load gpu on open.. to avoid the requirement of having
 289          * firmware in the initrd.
 290          */
 291         load_gpu(dev);
 292
 293         ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
 294         if (!ctx)
 295                 return -ENOMEM;
 296
 297         file->driver_priv = ctx;
 298
 299         return 0;
 300 }
 301
 302 static void msm_preclose(struct drm_device *dev, struct drm_file *file)
 303 {
 304         struct msm_drm_private *priv = dev->dev_private;
 305         struct msm_file_private *ctx = file->driver_priv;
 306         struct msm_kms *kms = priv->kms;
 307
 308         if (kms)
 309                 kms->funcs->preclose(kms, file);
 310
 311         mutex_lock(&dev->struct_mutex);
 312         if (ctx == priv->lastctx)
 313                 priv->lastctx = NULL;
 314         mutex_unlock(&dev->struct_mutex);
 315
 316         kfree(ctx);
 317 }
 318
 319 static void msm_lastclose(struct drm_device *dev)
 320 {
 321         struct msm_drm_private *priv = dev->dev_private;
 322         if (priv->fbdev) {
 323                 drm_modeset_lock_all(dev);
 324                 drm_fb_helper_restore_fbdev_mode(priv->fbdev);
 325                 drm_modeset_unlock_all(dev);
 326         }
 327 }
 328
 329 static irqreturn_t msm_irq(DRM_IRQ_ARGS)
 330 {
 331         struct drm_device *dev = arg;
 332         struct msm_drm_private *priv = dev->dev_private;
 333         struct msm_kms *kms = priv->kms;
 334         BUG_ON(!kms);
 335         return kms->funcs->irq(kms);
 336 }
 337
 338 static void msm_irq_preinstall(struct drm_device *dev)
 339 {
 340         struct msm_drm_private *priv = dev->dev_private;
 341         struct msm_kms *kms = priv->kms;
 342         BUG_ON(!kms);
 343         kms->funcs->irq_preinstall(kms);
 344 }
 345
 346 static int msm_irq_postinstall(struct drm_device *dev)
 347 {
 348         struct msm_drm_private *priv = dev->dev_private;
 349         struct msm_kms *kms = priv->kms;
 350         BUG_ON(!kms);
 351         return kms->funcs->irq_postinstall(kms);
 352 }
 353
 354 static void msm_irq_uninstall(struct drm_device *dev)
 355 {
 356         struct msm_drm_private *priv = dev->dev_private;
 357         struct msm_kms *kms = priv->kms;
 358         BUG_ON(!kms);
 359         kms->funcs->irq_uninstall(kms);
 360 }
 361
 362 static int msm_enable_vblank(struct drm_device *dev, int crtc_id)
 363 {
 364         struct msm_drm_private *priv = dev->dev_private;
 365         struct msm_kms *kms = priv->kms;
 366         if (!kms)
 367                 return -ENXIO;
 368         DBG("dev=%p, crtc=%d", dev, crtc_id);
 369         return kms->funcs->enable_vblank(kms, priv->crtcs[crtc_id]);
 370 }
 371
 372 static void msm_disable_vblank(struct drm_device *dev, int crtc_id)
 373 {
 374         struct msm_drm_private *priv = dev->dev_private;
 375         struct msm_kms *kms = priv->kms;
 376         if (!kms)
 377                 return;
 378         DBG("dev=%p, crtc=%d", dev, crtc_id);
 379         kms->funcs->disable_vblank(kms, priv->crtcs[crtc_id]);
 380 }
 381
 382 /*
 383  * DRM debugfs:
 384  */
 385
 386 #ifdef CONFIG_DEBUG_FS
 387 static int msm_gpu_show(struct drm_device *dev, struct seq_file *m)
 388 {
 389         struct msm_drm_private *priv = dev->dev_private;
 390         struct msm_gpu *gpu = priv->gpu;
 391
 392         if (gpu) {
 393                 seq_printf(m, "%s Status:\n", gpu->name);
 394                 gpu->funcs->show(gpu, m);
 395         }
 396
 397         return 0;
 398 }
 399
 400 static int msm_gem_show(struct drm_device *dev, struct seq_file *m)
 401 {
 402         struct msm_drm_private *priv = dev->dev_private;
 403         struct msm_gpu *gpu = priv->gpu;
 404
 405         if (gpu) {
 406                 seq_printf(m, "Active Objects (%s):\n", gpu->name);
 407                 msm_gem_describe_objects(&gpu->active_list, m);
 408         }
 409
 410         seq_printf(m, "Inactive Objects:\n");
 411         msm_gem_describe_objects(&priv->inactive_list, m);
 412
 413         return 0;
 414 }
 415
 416 static int msm_mm_show(struct drm_device *dev, struct seq_file *m)
 417 {
 418         return drm_mm_dump_table(m, dev->mm_private);
 419 }
 420
 421 static int msm_fb_show(struct drm_device *dev, struct seq_file *m)
 422 {
 423         struct msm_drm_private *priv = dev->dev_private;
 424         struct drm_framebuffer *fb, *fbdev_fb = NULL;
 425
 426         if (priv->fbdev) {
 427                 seq_printf(m, "fbcon ");
 428                 fbdev_fb = priv->fbdev->fb;
 429                 msm_framebuffer_describe(fbdev_fb, m);
 430         }
 431
 432         mutex_lock(&dev->mode_config.fb_lock);
 433         list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
 434                 if (fb == fbdev_fb)
 435                         continue;
 436
 437                 seq_printf(m, "user ");
 438                 msm_framebuffer_describe(fb, m);
 439         }
 440         mutex_unlock(&dev->mode_config.fb_lock);
 441
 442         return 0;
 443 }
 444
 445 static int show_locked(struct seq_file *m, void *arg)
 446 {
 447         struct drm_info_node *node = (struct drm_info_node *) m->private;
 448         struct drm_device *dev = node->minor->dev;
 449         int (*show)(struct drm_device *dev, struct seq_file *m) =
 450                         node->info_ent->data;
 451         int ret;
 452
 453         ret = mutex_lock_interruptible(&dev->struct_mutex);
 454         if (ret)
 455                 return ret;
 456
 457         ret = show(dev, m);
 458
 459         mutex_unlock(&dev->struct_mutex);
 460
 461         return ret;
 462 }
 463
 464 static struct drm_info_list msm_debugfs_list[] = {
 465                 {"gpu", show_locked, 0, msm_gpu_show},
 466                 {"gem", show_locked, 0, msm_gem_show},
 467                 { "mm", show_locked, 0, msm_mm_show },
 468                 { "fb", show_locked, 0, msm_fb_show },
 469 };
 470
 471 static int msm_debugfs_init(struct drm_minor *minor)
 472 {
 473         struct drm_device *dev = minor->dev;
 474         int ret;
 475
 476         ret = drm_debugfs_create_files(msm_debugfs_list,
 477                         ARRAY_SIZE(msm_debugfs_list),
 478                         minor->debugfs_root, minor);
 479
 480         if (ret) {
 481                 dev_err(dev->dev, "could not install msm_debugfs_list\n");
 482                 return ret;
 483         }
 484
 485         return ret;
 486 }
 487
 488 static void msm_debugfs_cleanup(struct drm_minor *minor)
 489 {
 490         drm_debugfs_remove_files(msm_debugfs_list,
 491                         ARRAY_SIZE(msm_debugfs_list), minor);
 492 }
 493 #endif
 494
 495 /*
 496  * Fences:
 497  */
 498
 499 int msm_wait_fence_interruptable(struct drm_device *dev, uint32_t fence,
 500                 struct timespec *timeout)
 501 {
 502         struct msm_drm_private *priv = dev->dev_private;
 503         int ret;
 504
 505         if (!priv->gpu)
 506                 return 0;
 507
 508         if (fence > priv->gpu->submitted_fence) {
 509                 DRM_ERROR("waiting on invalid fence: %u (of %u)\n",
 510                                 fence, priv->gpu->submitted_fence);
 511                 return -EINVAL;
 512         }
 513
 514         if (!timeout) {
 515                 /* no-wait: */
 516                 ret = fence_completed(dev, fence) ? 0 : -EBUSY;
 517         } else {
 518                 unsigned long timeout_jiffies = timespec_to_jiffies(timeout);
 519                 unsigned long start_jiffies = jiffies;
 520                 unsigned long remaining_jiffies;
 521
 522                 if (time_after(start_jiffies, timeout_jiffies))
 523                         remaining_jiffies = 0;
 524                 else
 525                         remaining_jiffies = timeout_jiffies - start_jiffies;
 526
 527                 ret = wait_event_interruptible_timeout(priv->fence_event,
 528                                 fence_completed(dev, fence),
 529                                 remaining_jiffies);
 530
 531                 if (ret == 0) {
 532                         DBG("timeout waiting for fence: %u (completed: %u)",
 533                                         fence, priv->completed_fence);
 534                         ret = -ETIMEDOUT;
 535                 } else if (ret != -ERESTARTSYS) {
 536                         ret = 0;
 537                 }
 538         }
 539
 540         return ret;
 541 }
 542
 543 /* called from workqueue */
 544 void msm_update_fence(struct drm_device *dev, uint32_t fence)
 545 {
 546         struct msm_drm_private *priv = dev->dev_private;
 547
 548         mutex_lock(&dev->struct_mutex);
 549         priv->completed_fence = max(fence, priv->completed_fence);
 550
 551         while (!list_empty(&priv->fence_cbs)) {
 552                 struct msm_fence_cb *cb;
 553
 554                 cb = list_first_entry(&priv->fence_cbs,
 555                                 struct msm_fence_cb, work.entry);
 556
 557                 if (cb->fence > priv->completed_fence)
 558                         break;
 559
 560                 list_del_init(&cb->work.entry);
 561                 queue_work(priv->wq, &cb->work);
 562         }
 563
 564         mutex_unlock(&dev->struct_mutex);
 565
 566         wake_up_all(&priv->fence_event);
 567 }
 568
 569 void __msm_fence_worker(struct work_struct *work)
 570 {
 571         struct msm_fence_cb *cb = container_of(work, struct msm_fence_cb, work);
 572         cb->func(cb);
 573 }
 574
 575 /*
 576  * DRM ioctls:
 577  */
 578
 579 static int msm_ioctl_get_param(struct drm_device *dev, void *data,
 580                 struct drm_file *file)
 581 {
 582         struct msm_drm_private *priv = dev->dev_private;
 583         struct drm_msm_param *args = data;
 584         struct msm_gpu *gpu;
 585
 586         /* for now, we just have 3d pipe.. eventually this would need to
 587          * be more clever to dispatch to appropriate gpu module:
 588          */
 589         if (args->pipe != MSM_PIPE_3D0)
 590                 return -EINVAL;
 591
 592         gpu = priv->gpu;
 593
 594         if (!gpu)
 595                 return -ENXIO;
 596
 597         return gpu->funcs->get_param(gpu, args->param, &args->value);
 598 }
 599
 600 static int msm_ioctl_gem_new(struct drm_device *dev, void *data,
 601                 struct drm_file *file)
 602 {
 603         struct drm_msm_gem_new *args = data;
 604         return msm_gem_new_handle(dev, file, args->size,
 605                         args->flags, &args->handle);
 606 }
 607
 608 #define TS(t) ((struct timespec){ .tv_sec = (t).tv_sec, .tv_nsec = (t).tv_nsec })
 609
 610 static int msm_ioctl_gem_cpu_prep(struct drm_device *dev, void *data,
 611                 struct drm_file *file)
 612 {
 613         struct drm_msm_gem_cpu_prep *args = data;
 614         struct drm_gem_object *obj;
 615         int ret;
 616
 617         obj = drm_gem_object_lookup(dev, file, args->handle);
 618         if (!obj)
 619                 return -ENOENT;
 620
 621         ret = msm_gem_cpu_prep(obj, args->op, &TS(args->timeout));
 622
 623         drm_gem_object_unreference_unlocked(obj);
 624
 625         return ret;
 626 }
 627
 628 static int msm_ioctl_gem_cpu_fini(struct drm_device *dev, void *data,
 629                 struct drm_file *file)
 630 {
 631         struct drm_msm_gem_cpu_fini *args = data;
 632         struct drm_gem_object *obj;
 633         int ret;
 634
 635         obj = drm_gem_object_lookup(dev, file, args->handle);
 636         if (!obj)
 637                 return -ENOENT;
 638
 639         ret = msm_gem_cpu_fini(obj);
 640
 641         drm_gem_object_unreference_unlocked(obj);
 642
 643         return ret;
 644 }
 645
 646 static int msm_ioctl_gem_info(struct drm_device *dev, void *data,
 647                 struct drm_file *file)
 648 {
 649         struct drm_msm_gem_info *args = data;
 650         struct drm_gem_object *obj;
 651         int ret = 0;
 652
 653         if (args->pad)
 654                 return -EINVAL;
 655
 656         obj = drm_gem_object_lookup(dev, file, args->handle);
 657         if (!obj)
 658                 return -ENOENT;
 659
 660         args->offset = msm_gem_mmap_offset(obj);
 661
 662         drm_gem_object_unreference_unlocked(obj);
 663
 664         return ret;
 665 }
 666
 667 static int msm_ioctl_wait_fence(struct drm_device *dev, void *data,
 668                 struct drm_file *file)
 669 {
 670         struct drm_msm_wait_fence *args = data;
 671         return msm_wait_fence_interruptable(dev, args->fence, &TS(args->timeout));
 672 }
 673
 674 static const struct drm_ioctl_desc msm_ioctls[] = {
 675         DRM_IOCTL_DEF_DRV(MSM_GET_PARAM,    msm_ioctl_get_param,    DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 676         DRM_IOCTL_DEF_DRV(MSM_GEM_NEW,      msm_ioctl_gem_new,      DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 677         DRM_IOCTL_DEF_DRV(MSM_GEM_INFO,     msm_ioctl_gem_info,     DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 678         DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_PREP, msm_ioctl_gem_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 679         DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_FINI, msm_ioctl_gem_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 680         DRM_IOCTL_DEF_DRV(MSM_GEM_SUBMIT,   msm_ioctl_gem_submit,   DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 681         DRM_IOCTL_DEF_DRV(MSM_WAIT_FENCE,   msm_ioctl_wait_fence,   DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
 682 };
 683
 684 static const struct vm_operations_struct vm_ops = {
 685         .fault = msm_gem_fault,
 686         .open = drm_gem_vm_open,
 687         .close = drm_gem_vm_close,
 688 };
 689
 690 static const struct file_operations fops = {
 691         .owner              = THIS_MODULE,
 692         .open               = drm_open,
 693         .release            = drm_release,
 694         .unlocked_ioctl     = drm_ioctl,
 695 #ifdef CONFIG_COMPAT
 696         .compat_ioctl       = drm_compat_ioctl,
 697 #endif
 698         .poll               = drm_poll,
 699         .read               = drm_read,
 700         .llseek             = no_llseek,
 701         .mmap               = msm_gem_mmap,
 702 };
 703
 704 static struct drm_driver msm_driver = {
 705         .driver_features    = DRIVER_HAVE_IRQ |
 706                                 DRIVER_GEM |
 707                                 DRIVER_PRIME |
 708                                 DRIVER_RENDER |
 709                                 DRIVER_MODESET,
 710         .load               = msm_load,
 711         .unload             = msm_unload,
 712         .open               = msm_open,
 713         .preclose           = msm_preclose,
 714         .lastclose          = msm_lastclose,
 715         .irq_handler        = msm_irq,
 716         .irq_preinstall     = msm_irq_preinstall,
 717         .irq_postinstall    = msm_irq_postinstall,
 718         .irq_uninstall      = msm_irq_uninstall,
 719         .get_vblank_counter = drm_vblank_count,
 720         .enable_vblank      = msm_enable_vblank,
 721         .disable_vblank     = msm_disable_vblank,
 722         .gem_free_object    = msm_gem_free_object,
 723         .gem_vm_ops         = &vm_ops,
 724         .dumb_create        = msm_gem_dumb_create,
 725         .dumb_map_offset    = msm_gem_dumb_map_offset,
 726         .dumb_destroy       = drm_gem_dumb_destroy,
 727         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 728         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 729         .gem_prime_export   = drm_gem_prime_export,
 730         .gem_prime_import   = drm_gem_prime_import,
 731         .gem_prime_pin      = msm_gem_prime_pin,
 732         .gem_prime_unpin    = msm_gem_prime_unpin,
 733         .gem_prime_get_sg_table = msm_gem_prime_get_sg_table,
 734         .gem_prime_import_sg_table = msm_gem_prime_import_sg_table,
 735         .gem_prime_vmap     = msm_gem_prime_vmap,
 736         .gem_prime_vunmap   = msm_gem_prime_vunmap,
 737 #ifdef CONFIG_DEBUG_FS
 738         .debugfs_init       = msm_debugfs_init,
 739         .debugfs_cleanup    = msm_debugfs_cleanup,
 740 #endif
 741         .ioctls             = msm_ioctls,
 742         .num_ioctls         = DRM_MSM_NUM_IOCTLS,
 743         .fops               = &fops,
 744         .name               = "msm",
 745         .desc               = "MSM Snapdragon DRM",
 746         .date               = "20130625",
 747         .major              = 1,
 748         .minor              = 0,
 749 };
 750
 751 #ifdef CONFIG_PM_SLEEP
 752 static int msm_pm_suspend(struct device *dev)
 753 {
 754         struct drm_device *ddev = dev_get_drvdata(dev);
 755
 756         drm_kms_helper_poll_disable(ddev);
 757
 758         return 0;
 759 }
 760
 761 static int msm_pm_resume(struct device *dev)
 762 {
 763         struct drm_device *ddev = dev_get_drvdata(dev);
 764
 765         drm_kms_helper_poll_enable(ddev);
 766
 767         return 0;
 768 }
 769 #endif
 770
 771 static const struct dev_pm_ops msm_pm_ops = {
 772         SET_SYSTEM_SLEEP_PM_OPS(msm_pm_suspend, msm_pm_resume)
 773 };
 774
 775 /*
 776  * Platform driver:
 777  */
 778
 779 static int msm_pdev_probe(struct platform_device *pdev)
 780 {
 781         return drm_platform_init(&msm_driver, pdev);
 782 }
 783
 784 static int msm_pdev_remove(struct platform_device *pdev)
 785 {
 786         drm_platform_exit(&msm_driver, pdev);
 787
 788         return 0;
 789 }
 790
 791 static const struct platform_device_id msm_id[] = {
 792         { "mdp", 0 },
 793         { }
 794 };
 795
 796 static struct platform_driver msm_platform_driver = {
 797         .probe      = msm_pdev_probe,
 798         .remove     = msm_pdev_remove,
 799         .driver     = {
 800                 .owner  = THIS_MODULE,
 801                 .name   = "msm",
 802                 .pm     = &msm_pm_ops,
 803         },
 804         .id_table   = msm_id,
 805 };
 806
 807 static int __init msm_drm_register(void)
 808 {
 809         DBG("init");
 810         hdmi_register();
 811         a3xx_register();
 812         return platform_driver_register(&msm_platform_driver);
 813 }
 814
 815 static void __exit msm_drm_unregister(void)
 816 {
 817         DBG("fini");
 818         platform_driver_unregister(&msm_platform_driver);
 819         hdmi_unregister();
 820         a3xx_unregister();
 821 }
 822
 823 module_init(msm_drm_register);
 824 module_exit(msm_drm_unregister);
 825
 826 MODULE_AUTHOR("Rob Clark <robdclark@gmail.com");
 827 MODULE_DESCRIPTION("MSM DRM Driver");
 828 MODULE_LICENSE("GPL");