drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

   1 /**************************************************************************
   2  *
   3  * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "drmP.h"
  29 #include "vmwgfx_drv.h"
  30 #include "ttm/ttm_placement.h"
  31 #include "ttm/ttm_bo_driver.h"
  32 #include "ttm/ttm_object.h"
  33 #include "ttm/ttm_module.h"
  34
  35 #define VMWGFX_DRIVER_NAME "vmwgfx"
  36 #define VMWGFX_DRIVER_DESC "Linux drm driver for VMware graphics devices"
  37 #define VMWGFX_CHIP_SVGAII 0
  38 #define VMW_FB_RESERVATION 0
  39
  40 /**
  41  * Fully encoded drm commands. Might move to vmw_drm.h
  42  */
  43
  44 #define DRM_IOCTL_VMW_GET_PARAM                                 \
  45         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GET_PARAM,          \
  46                  struct drm_vmw_getparam_arg)
  47 #define DRM_IOCTL_VMW_ALLOC_DMABUF                              \
  48         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_ALLOC_DMABUF,       \
  49                 union drm_vmw_alloc_dmabuf_arg)
  50 #define DRM_IOCTL_VMW_UNREF_DMABUF                              \
  51         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_DMABUF,        \
  52                 struct drm_vmw_unref_dmabuf_arg)
  53 #define DRM_IOCTL_VMW_CURSOR_BYPASS                             \
  54         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CURSOR_BYPASS,       \
  55                  struct drm_vmw_cursor_bypass_arg)
  56
  57 #define DRM_IOCTL_VMW_CONTROL_STREAM                            \
  58         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CONTROL_STREAM,      \
  59                  struct drm_vmw_control_stream_arg)
  60 #define DRM_IOCTL_VMW_CLAIM_STREAM                              \
  61         DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CLAIM_STREAM,        \
  62                  struct drm_vmw_stream_arg)
  63 #define DRM_IOCTL_VMW_UNREF_STREAM                              \
  64         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_STREAM,        \
  65                  struct drm_vmw_stream_arg)
  66
  67 #define DRM_IOCTL_VMW_CREATE_CONTEXT                            \
  68         DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CREATE_CONTEXT,      \
  69                 struct drm_vmw_context_arg)
  70 #define DRM_IOCTL_VMW_UNREF_CONTEXT                             \
  71         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_CONTEXT,       \
  72                 struct drm_vmw_context_arg)
  73 #define DRM_IOCTL_VMW_CREATE_SURFACE                            \
  74         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SURFACE,     \
  75                  union drm_vmw_surface_create_arg)
  76 #define DRM_IOCTL_VMW_UNREF_SURFACE                             \
  77         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SURFACE,       \
  78                  struct drm_vmw_surface_arg)
  79 #define DRM_IOCTL_VMW_REF_SURFACE                               \
  80         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_REF_SURFACE,        \
  81                  union drm_vmw_surface_reference_arg)
  82 #define DRM_IOCTL_VMW_EXECBUF                                   \
  83         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_EXECBUF,             \
  84                 struct drm_vmw_execbuf_arg)
  85 #define DRM_IOCTL_VMW_FIFO_DEBUG                                \
  86         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FIFO_DEBUG,         \
  87                  struct drm_vmw_fifo_debug_arg)
  88 #define DRM_IOCTL_VMW_FENCE_WAIT                                \
  89         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_WAIT,         \
  90                  struct drm_vmw_fence_wait_arg)
  91
  92
  93 /**
  94  * The core DRM version of this macro doesn't account for
  95  * DRM_COMMAND_BASE.
  96  */
  97
  98 #define VMW_IOCTL_DEF(ioctl, func, flags) \
  99         [DRM_IOCTL_NR(ioctl) - DRM_COMMAND_BASE] = {ioctl, flags, func}
 100
 101 /**
 102  * Ioctl definitions.
 103  */
 104
 105 static struct drm_ioctl_desc vmw_ioctls[] = {
 106         VMW_IOCTL_DEF(DRM_IOCTL_VMW_GET_PARAM, vmw_getparam_ioctl,
 107                       DRM_AUTH | DRM_UNLOCKED),
 108         VMW_IOCTL_DEF(DRM_IOCTL_VMW_ALLOC_DMABUF, vmw_dmabuf_alloc_ioctl,
 109                       DRM_AUTH | DRM_UNLOCKED),
 110         VMW_IOCTL_DEF(DRM_IOCTL_VMW_UNREF_DMABUF, vmw_dmabuf_unref_ioctl,
 111                       DRM_AUTH | DRM_UNLOCKED),
 112         VMW_IOCTL_DEF(DRM_IOCTL_VMW_CURSOR_BYPASS,
 113                       vmw_kms_cursor_bypass_ioctl,
 114                       DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
 115
 116         VMW_IOCTL_DEF(DRM_IOCTL_VMW_CONTROL_STREAM, vmw_overlay_ioctl,
 117                       DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
 118         VMW_IOCTL_DEF(DRM_IOCTL_VMW_CLAIM_STREAM, vmw_stream_claim_ioctl,
 119                       DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
 120         VMW_IOCTL_DEF(DRM_IOCTL_VMW_UNREF_STREAM, vmw_stream_unref_ioctl,
 121                       DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
 122
 123         VMW_IOCTL_DEF(DRM_IOCTL_VMW_CREATE_CONTEXT, vmw_context_define_ioctl,
 124                       DRM_AUTH | DRM_UNLOCKED),
 125         VMW_IOCTL_DEF(DRM_IOCTL_VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl,
 126                       DRM_AUTH | DRM_UNLOCKED),
 127         VMW_IOCTL_DEF(DRM_IOCTL_VMW_CREATE_SURFACE, vmw_surface_define_ioctl,
 128                       DRM_AUTH | DRM_UNLOCKED),
 129         VMW_IOCTL_DEF(DRM_IOCTL_VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl,
 130                       DRM_AUTH | DRM_UNLOCKED),
 131         VMW_IOCTL_DEF(DRM_IOCTL_VMW_REF_SURFACE, vmw_surface_reference_ioctl,
 132                       DRM_AUTH | DRM_UNLOCKED),
 133         VMW_IOCTL_DEF(DRM_IOCTL_VMW_EXECBUF, vmw_execbuf_ioctl,
 134                       DRM_AUTH | DRM_UNLOCKED),
 135         VMW_IOCTL_DEF(DRM_IOCTL_VMW_FIFO_DEBUG, vmw_fifo_debug_ioctl,
 136                       DRM_AUTH | DRM_ROOT_ONLY | DRM_MASTER | DRM_UNLOCKED),
 137         VMW_IOCTL_DEF(DRM_IOCTL_VMW_FENCE_WAIT, vmw_fence_wait_ioctl,
 138                       DRM_AUTH | DRM_UNLOCKED)
 139 };
 140
 141 static struct pci_device_id vmw_pci_id_list[] = {
 142         {0x15ad, 0x0405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VMWGFX_CHIP_SVGAII},
 143         {0, 0, 0}
 144 };
 145
 146 static char *vmw_devname = "vmwgfx";
 147
 148 static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
 149 static void vmw_master_init(struct vmw_master *);
 150 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
 151                               void *ptr);
 152
 153 static void vmw_print_capabilities(uint32_t capabilities)
 154 {
 155         DRM_INFO("Capabilities:\n");
 156         if (capabilities & SVGA_CAP_RECT_COPY)
 157                 DRM_INFO("  Rect copy.\n");
 158         if (capabilities & SVGA_CAP_CURSOR)
 159                 DRM_INFO("  Cursor.\n");
 160         if (capabilities & SVGA_CAP_CURSOR_BYPASS)
 161                 DRM_INFO("  Cursor bypass.\n");
 162         if (capabilities & SVGA_CAP_CURSOR_BYPASS_2)
 163                 DRM_INFO("  Cursor bypass 2.\n");
 164         if (capabilities & SVGA_CAP_8BIT_EMULATION)
 165                 DRM_INFO("  8bit emulation.\n");
 166         if (capabilities & SVGA_CAP_ALPHA_CURSOR)
 167                 DRM_INFO("  Alpha cursor.\n");
 168         if (capabilities & SVGA_CAP_3D)
 169                 DRM_INFO("  3D.\n");
 170         if (capabilities & SVGA_CAP_EXTENDED_FIFO)
 171                 DRM_INFO("  Extended Fifo.\n");
 172         if (capabilities & SVGA_CAP_MULTIMON)
 173                 DRM_INFO("  Multimon.\n");
 174         if (capabilities & SVGA_CAP_PITCHLOCK)
 175                 DRM_INFO("  Pitchlock.\n");
 176         if (capabilities & SVGA_CAP_IRQMASK)
 177                 DRM_INFO("  Irq mask.\n");
 178         if (capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)
 179                 DRM_INFO("  Display Topology.\n");
 180         if (capabilities & SVGA_CAP_GMR)
 181                 DRM_INFO("  GMR.\n");
 182         if (capabilities & SVGA_CAP_TRACES)
 183                 DRM_INFO("  Traces.\n");
 184 }
 185
 186 static int vmw_request_device(struct vmw_private *dev_priv)
 187 {
 188         int ret;
 189
 190         vmw_kms_save_vga(dev_priv);
 191
 192         ret = vmw_fifo_init(dev_priv, &dev_priv->fifo);
 193         if (unlikely(ret != 0)) {
 194                 DRM_ERROR("Unable to initialize FIFO.\n");
 195                 return ret;
 196         }
 197
 198         return 0;
 199 }
 200
 201 static void vmw_release_device(struct vmw_private *dev_priv)
 202 {
 203         vmw_fifo_release(dev_priv, &dev_priv->fifo);
 204         vmw_kms_restore_vga(dev_priv);
 205 }
 206
 207
 208 static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 209 {
 210         struct vmw_private *dev_priv;
 211         int ret;
 212         uint32_t svga_id;
 213
 214         dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
 215         if (unlikely(dev_priv == NULL)) {
 216                 DRM_ERROR("Failed allocating a device private struct.\n");
 217                 return -ENOMEM;
 218         }
 219         memset(dev_priv, 0, sizeof(*dev_priv));
 220
 221         dev_priv->dev = dev;
 222         dev_priv->vmw_chipset = chipset;
 223         dev_priv->last_read_sequence = (uint32_t) -100;
 224         mutex_init(&dev_priv->hw_mutex);
 225         mutex_init(&dev_priv->cmdbuf_mutex);
 226         rwlock_init(&dev_priv->resource_lock);
 227         idr_init(&dev_priv->context_idr);
 228         idr_init(&dev_priv->surface_idr);
 229         idr_init(&dev_priv->stream_idr);
 230         ida_init(&dev_priv->gmr_ida);
 231         mutex_init(&dev_priv->init_mutex);
 232         init_waitqueue_head(&dev_priv->fence_queue);
 233         init_waitqueue_head(&dev_priv->fifo_queue);
 234         atomic_set(&dev_priv->fence_queue_waiters, 0);
 235         atomic_set(&dev_priv->fifo_queue_waiters, 0);
 236         INIT_LIST_HEAD(&dev_priv->gmr_lru);
 237
 238         dev_priv->io_start = pci_resource_start(dev->pdev, 0);
 239         dev_priv->vram_start = pci_resource_start(dev->pdev, 1);
 240         dev_priv->mmio_start = pci_resource_start(dev->pdev, 2);
 241
 242         mutex_lock(&dev_priv->hw_mutex);
 243
 244         vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
 245         svga_id = vmw_read(dev_priv, SVGA_REG_ID);
 246         if (svga_id != SVGA_ID_2) {
 247                 ret = -ENOSYS;
 248                 DRM_ERROR("Unsuported SVGA ID 0x%x\n", svga_id);
 249                 mutex_unlock(&dev_priv->hw_mutex);
 250                 goto out_err0;
 251         }
 252
 253         dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES);
 254
 255         if (dev_priv->capabilities & SVGA_CAP_GMR) {
 256                 dev_priv->max_gmr_descriptors =
 257                         vmw_read(dev_priv,
 258                                  SVGA_REG_GMR_MAX_DESCRIPTOR_LENGTH);
 259                 dev_priv->max_gmr_ids =
 260                         vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS);
 261         }
 262
 263         dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE);
 264         dev_priv->mmio_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE);
 265         dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH);
 266         dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT);
 267
 268         mutex_unlock(&dev_priv->hw_mutex);
 269
 270         vmw_print_capabilities(dev_priv->capabilities);
 271
 272         if (dev_priv->capabilities & SVGA_CAP_GMR) {
 273                 DRM_INFO("Max GMR ids is %u\n",
 274                          (unsigned)dev_priv->max_gmr_ids);
 275                 DRM_INFO("Max GMR descriptors is %u\n",
 276                          (unsigned)dev_priv->max_gmr_descriptors);
 277         }
 278         DRM_INFO("VRAM at 0x%08x size is %u kiB\n",
 279                  dev_priv->vram_start, dev_priv->vram_size / 1024);
 280         DRM_INFO("MMIO at 0x%08x size is %u kiB\n",
 281                  dev_priv->mmio_start, dev_priv->mmio_size / 1024);
 282
 283         ret = vmw_ttm_global_init(dev_priv);
 284         if (unlikely(ret != 0))
 285                 goto out_err0;
 286
 287
 288         vmw_master_init(&dev_priv->fbdev_master);
 289         ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
 290         dev_priv->active_master = &dev_priv->fbdev_master;
 291
 292
 293         ret = ttm_bo_device_init(&dev_priv->bdev,
 294                                  dev_priv->bo_global_ref.ref.object,
 295                                  &vmw_bo_driver, VMWGFX_FILE_PAGE_OFFSET,
 296                                  false);
 297         if (unlikely(ret != 0)) {
 298                 DRM_ERROR("Failed initializing TTM buffer object driver.\n");
 299                 goto out_err1;
 300         }
 301
 302         ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM,
 303                              (dev_priv->vram_size >> PAGE_SHIFT));
 304         if (unlikely(ret != 0)) {
 305                 DRM_ERROR("Failed initializing memory manager for VRAM.\n");
 306                 goto out_err2;
 307         }
 308
 309         dev_priv->mmio_mtrr = drm_mtrr_add(dev_priv->mmio_start,
 310                                            dev_priv->mmio_size, DRM_MTRR_WC);
 311
 312         dev_priv->mmio_virt = ioremap_wc(dev_priv->mmio_start,
 313                                          dev_priv->mmio_size);
 314
 315         if (unlikely(dev_priv->mmio_virt == NULL)) {
 316                 ret = -ENOMEM;
 317                 DRM_ERROR("Failed mapping MMIO.\n");
 318                 goto out_err3;
 319         }
 320
 321         dev_priv->tdev = ttm_object_device_init
 322             (dev_priv->mem_global_ref.object, 12);
 323
 324         if (unlikely(dev_priv->tdev == NULL)) {
 325                 DRM_ERROR("Unable to initialize TTM object management.\n");
 326                 ret = -ENOMEM;
 327                 goto out_err4;
 328         }
 329
 330         dev->dev_private = dev_priv;
 331
 332         if (!dev->devname)
 333                 dev->devname = vmw_devname;
 334
 335         if (dev_priv->capabilities & SVGA_CAP_IRQMASK) {
 336                 ret = drm_irq_install(dev);
 337                 if (unlikely(ret != 0)) {
 338                         DRM_ERROR("Failed installing irq: %d\n", ret);
 339                         goto out_no_irq;
 340                 }
 341         }
 342
 343         ret = pci_request_regions(dev->pdev, "vmwgfx probe");
 344         dev_priv->stealth = (ret != 0);
 345         if (dev_priv->stealth) {
 346                 /**
 347                  * Request at least the mmio PCI resource.
 348                  */
 349
 350                 DRM_INFO("It appears like vesafb is loaded. "
 351                          "Ignore above error if any.\n");
 352                 ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe");
 353                 if (unlikely(ret != 0)) {
 354                         DRM_ERROR("Failed reserving the SVGA MMIO resource.\n");
 355                         goto out_no_device;
 356                 }
 357         }
 358         ret = vmw_request_device(dev_priv);
 359         if (unlikely(ret != 0))
 360                 goto out_no_device;
 361         vmw_kms_init(dev_priv);
 362         vmw_overlay_init(dev_priv);
 363         vmw_fb_init(dev_priv);
 364
 365         dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
 366         register_pm_notifier(&dev_priv->pm_nb);
 367
 368         DRM_INFO("%s", vmw_fifo_have_3d(dev_priv) ? "Have 3D\n" : "No 3D\n");
 369
 370         return 0;
 371
 372 out_no_device:
 373         if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
 374                 drm_irq_uninstall(dev_priv->dev);
 375         if (dev->devname == vmw_devname)
 376                 dev->devname = NULL;
 377 out_no_irq:
 378         ttm_object_device_release(&dev_priv->tdev);
 379 out_err4:
 380         iounmap(dev_priv->mmio_virt);
 381 out_err3:
 382         drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start,
 383                      dev_priv->mmio_size, DRM_MTRR_WC);
 384         (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
 385 out_err2:
 386         (void)ttm_bo_device_release(&dev_priv->bdev);
 387 out_err1:
 388         vmw_ttm_global_release(dev_priv);
 389 out_err0:
 390         ida_destroy(&dev_priv->gmr_ida);
 391         idr_destroy(&dev_priv->surface_idr);
 392         idr_destroy(&dev_priv->context_idr);
 393         idr_destroy(&dev_priv->stream_idr);
 394         kfree(dev_priv);
 395         return ret;
 396 }
 397
 398 static int vmw_driver_unload(struct drm_device *dev)
 399 {
 400         struct vmw_private *dev_priv = vmw_priv(dev);
 401
 402         DRM_INFO(VMWGFX_DRIVER_NAME " unload.\n");
 403
 404         unregister_pm_notifier(&dev_priv->pm_nb);
 405
 406         vmw_fb_close(dev_priv);
 407         vmw_kms_close(dev_priv);
 408         vmw_overlay_close(dev_priv);
 409         vmw_release_device(dev_priv);
 410         if (dev_priv->stealth)
 411                 pci_release_region(dev->pdev, 2);
 412         else
 413                 pci_release_regions(dev->pdev);
 414
 415         if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
 416                 drm_irq_uninstall(dev_priv->dev);
 417         if (dev->devname == vmw_devname)
 418                 dev->devname = NULL;
 419         ttm_object_device_release(&dev_priv->tdev);
 420         iounmap(dev_priv->mmio_virt);
 421         drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start,
 422                      dev_priv->mmio_size, DRM_MTRR_WC);
 423         (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
 424         (void)ttm_bo_device_release(&dev_priv->bdev);
 425         vmw_ttm_global_release(dev_priv);
 426         ida_destroy(&dev_priv->gmr_ida);
 427         idr_destroy(&dev_priv->surface_idr);
 428         idr_destroy(&dev_priv->context_idr);
 429         idr_destroy(&dev_priv->stream_idr);
 430
 431         kfree(dev_priv);
 432
 433         return 0;
 434 }
 435
 436 static void vmw_postclose(struct drm_device *dev,
 437                          struct drm_file *file_priv)
 438 {
 439         struct vmw_fpriv *vmw_fp;
 440
 441         vmw_fp = vmw_fpriv(file_priv);
 442         ttm_object_file_release(&vmw_fp->tfile);
 443         if (vmw_fp->locked_master)
 444                 drm_master_put(&vmw_fp->locked_master);
 445         kfree(vmw_fp);
 446 }
 447
 448 static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
 449 {
 450         struct vmw_private *dev_priv = vmw_priv(dev);
 451         struct vmw_fpriv *vmw_fp;
 452         int ret = -ENOMEM;
 453
 454         vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL);
 455         if (unlikely(vmw_fp == NULL))
 456                 return ret;
 457
 458         vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev, 10);
 459         if (unlikely(vmw_fp->tfile == NULL))
 460                 goto out_no_tfile;
 461
 462         file_priv->driver_priv = vmw_fp;
 463
 464         if (unlikely(dev_priv->bdev.dev_mapping == NULL))
 465                 dev_priv->bdev.dev_mapping =
 466                         file_priv->filp->f_path.dentry->d_inode->i_mapping;
 467
 468         return 0;
 469
 470 out_no_tfile:
 471         kfree(vmw_fp);
 472         return ret;
 473 }
 474
 475 static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd,
 476                                unsigned long arg)
 477 {
 478         struct drm_file *file_priv = filp->private_data;
 479         struct drm_device *dev = file_priv->minor->dev;
 480         unsigned int nr = DRM_IOCTL_NR(cmd);
 481
 482         /*
 483          * Do extra checking on driver private ioctls.
 484          */
 485
 486         if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
 487             && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
 488                 struct drm_ioctl_desc *ioctl =
 489                     &vmw_ioctls[nr - DRM_COMMAND_BASE];
 490
 491                 if (unlikely(ioctl->cmd != cmd)) {
 492                         DRM_ERROR("Invalid command format, ioctl %d\n",
 493                                   nr - DRM_COMMAND_BASE);
 494                         return -EINVAL;
 495                 }
 496         }
 497
 498         return drm_ioctl(filp, cmd, arg);
 499 }
 500
 501 static int vmw_firstopen(struct drm_device *dev)
 502 {
 503         struct vmw_private *dev_priv = vmw_priv(dev);
 504         dev_priv->is_opened = true;
 505
 506         return 0;
 507 }
 508
 509 static void vmw_lastclose(struct drm_device *dev)
 510 {
 511         struct vmw_private *dev_priv = vmw_priv(dev);
 512         struct drm_crtc *crtc;
 513         struct drm_mode_set set;
 514         int ret;
 515
 516         /**
 517          * Do nothing on the lastclose call from drm_unload.
 518          */
 519
 520         if (!dev_priv->is_opened)
 521                 return;
 522
 523         dev_priv->is_opened = false;
 524         set.x = 0;
 525         set.y = 0;
 526         set.fb = NULL;
 527         set.mode = NULL;
 528         set.connectors = NULL;
 529         set.num_connectors = 0;
 530
 531         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 532                 set.crtc = crtc;
 533                 ret = crtc->funcs->set_config(&set);
 534                 WARN_ON(ret != 0);
 535         }
 536
 537 }
 538
 539 static void vmw_master_init(struct vmw_master *vmaster)
 540 {
 541         ttm_lock_init(&vmaster->lock);
 542 }
 543
 544 static int vmw_master_create(struct drm_device *dev,
 545                              struct drm_master *master)
 546 {
 547         struct vmw_master *vmaster;
 548
 549         DRM_INFO("Master create.\n");
 550         vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL);
 551         if (unlikely(vmaster == NULL))
 552                 return -ENOMEM;
 553
 554         ttm_lock_init(&vmaster->lock);
 555         ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
 556         master->driver_priv = vmaster;
 557
 558         return 0;
 559 }
 560
 561 static void vmw_master_destroy(struct drm_device *dev,
 562                                struct drm_master *master)
 563 {
 564         struct vmw_master *vmaster = vmw_master(master);
 565
 566         DRM_INFO("Master destroy.\n");
 567         master->driver_priv = NULL;
 568         kfree(vmaster);
 569 }
 570
 571
 572 static int vmw_master_set(struct drm_device *dev,
 573                           struct drm_file *file_priv,
 574                           bool from_open)
 575 {
 576         struct vmw_private *dev_priv = vmw_priv(dev);
 577         struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
 578         struct vmw_master *active = dev_priv->active_master;
 579         struct vmw_master *vmaster = vmw_master(file_priv->master);
 580         int ret = 0;
 581
 582         DRM_INFO("Master set.\n");
 583
 584         if (active) {
 585                 BUG_ON(active != &dev_priv->fbdev_master);
 586                 ret = ttm_vt_lock(&active->lock, false, vmw_fp->tfile);
 587                 if (unlikely(ret != 0))
 588                         goto out_no_active_lock;
 589
 590                 ttm_lock_set_kill(&active->lock, true, SIGTERM);
 591                 ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
 592                 if (unlikely(ret != 0)) {
 593                         DRM_ERROR("Unable to clean VRAM on "
 594                                   "master drop.\n");
 595                 }
 596
 597                 dev_priv->active_master = NULL;
 598         }
 599
 600         ttm_lock_set_kill(&vmaster->lock, false, SIGTERM);
 601         if (!from_open) {
 602                 ttm_vt_unlock(&vmaster->lock);
 603                 BUG_ON(vmw_fp->locked_master != file_priv->master);
 604                 drm_master_put(&vmw_fp->locked_master);
 605         }
 606
 607         dev_priv->active_master = vmaster;
 608
 609         return 0;
 610
 611 out_no_active_lock:
 612         vmw_release_device(dev_priv);
 613         return ret;
 614 }
 615
 616 static void vmw_master_drop(struct drm_device *dev,
 617                             struct drm_file *file_priv,
 618                             bool from_release)
 619 {
 620         struct vmw_private *dev_priv = vmw_priv(dev);
 621         struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
 622         struct vmw_master *vmaster = vmw_master(file_priv->master);
 623         int ret;
 624
 625         DRM_INFO("Master drop.\n");
 626
 627         /**
 628          * Make sure the master doesn't disappear while we have
 629          * it locked.
 630          */
 631
 632         vmw_fp->locked_master = drm_master_get(file_priv->master);
 633         ret = ttm_vt_lock(&vmaster->lock, false, vmw_fp->tfile);
 634
 635         if (unlikely((ret != 0))) {
 636                 DRM_ERROR("Unable to lock TTM at VT switch.\n");
 637                 drm_master_put(&vmw_fp->locked_master);
 638         }
 639
 640         ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
 641
 642         dev_priv->active_master = &dev_priv->fbdev_master;
 643         ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
 644         ttm_vt_unlock(&dev_priv->fbdev_master.lock);
 645
 646         vmw_fb_on(dev_priv);
 647 }
 648
 649
 650 static void vmw_remove(struct pci_dev *pdev)
 651 {
 652         struct drm_device *dev = pci_get_drvdata(pdev);
 653
 654         drm_put_dev(dev);
 655 }
 656
 657 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
 658                               void *ptr)
 659 {
 660         struct vmw_private *dev_priv =
 661                 container_of(nb, struct vmw_private, pm_nb);
 662         struct vmw_master *vmaster = dev_priv->active_master;
 663
 664         switch (val) {
 665         case PM_HIBERNATION_PREPARE:
 666         case PM_SUSPEND_PREPARE:
 667                 ttm_suspend_lock(&vmaster->lock);
 668
 669                 /**
 670                  * This empties VRAM and unbinds all GMR bindings.
 671                  * Buffer contents is moved to swappable memory.
 672                  */
 673                 ttm_bo_swapout_all(&dev_priv->bdev);
 674                 break;
 675         case PM_POST_HIBERNATION:
 676         case PM_POST_SUSPEND:
 677                 ttm_suspend_unlock(&vmaster->lock);
 678                 break;
 679         case PM_RESTORE_PREPARE:
 680                 break;
 681         case PM_POST_RESTORE:
 682                 break;
 683         default:
 684                 break;
 685         }
 686         return 0;
 687 }
 688
 689 /**
 690  * These might not be needed with the virtual SVGA device.
 691  */
 692
 693 int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 694 {
 695         pci_save_state(pdev);
 696         pci_disable_device(pdev);
 697         pci_set_power_state(pdev, PCI_D3hot);
 698         return 0;
 699 }
 700
 701 int vmw_pci_resume(struct pci_dev *pdev)
 702 {
 703         pci_set_power_state(pdev, PCI_D0);
 704         pci_restore_state(pdev);
 705         return pci_enable_device(pdev);
 706 }
 707
 708 static struct drm_driver driver = {
 709         .driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
 710         DRIVER_MODESET,
 711         .load = vmw_driver_load,
 712         .unload = vmw_driver_unload,
 713         .firstopen = vmw_firstopen,
 714         .lastclose = vmw_lastclose,
 715         .irq_preinstall = vmw_irq_preinstall,
 716         .irq_postinstall = vmw_irq_postinstall,
 717         .irq_uninstall = vmw_irq_uninstall,
 718         .irq_handler = vmw_irq_handler,
 719         .reclaim_buffers_locked = NULL,
 720         .get_map_ofs = drm_core_get_map_ofs,
 721         .get_reg_ofs = drm_core_get_reg_ofs,
 722         .ioctls = vmw_ioctls,
 723         .num_ioctls = DRM_ARRAY_SIZE(vmw_ioctls),
 724         .dma_quiescent = NULL,  /*vmw_dma_quiescent, */
 725         .master_create = vmw_master_create,
 726         .master_destroy = vmw_master_destroy,
 727         .master_set = vmw_master_set,
 728         .master_drop = vmw_master_drop,
 729         .open = vmw_driver_open,
 730         .postclose = vmw_postclose,
 731         .fops = {
 732                  .owner = THIS_MODULE,
 733                  .open = drm_open,
 734                  .release = drm_release,
 735                  .unlocked_ioctl = vmw_unlocked_ioctl,
 736                  .mmap = vmw_mmap,
 737                  .poll = drm_poll,
 738                  .fasync = drm_fasync,
 739 #if defined(CONFIG_COMPAT)
 740                  .compat_ioctl = drm_compat_ioctl,
 741 #endif
 742                  },
 743         .pci_driver = {
 744                        .name = VMWGFX_DRIVER_NAME,
 745                        .id_table = vmw_pci_id_list,
 746                        .probe = vmw_probe,
 747                        .remove = vmw_remove,
 748                        .suspend = vmw_pci_suspend,
 749                        .resume = vmw_pci_resume
 750                        },
 751         .name = VMWGFX_DRIVER_NAME,
 752         .desc = VMWGFX_DRIVER_DESC,
 753         .date = VMWGFX_DRIVER_DATE,
 754         .major = VMWGFX_DRIVER_MAJOR,
 755         .minor = VMWGFX_DRIVER_MINOR,
 756         .patchlevel = VMWGFX_DRIVER_PATCHLEVEL
 757 };
 758
 759 static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 760 {
 761         return drm_get_dev(pdev, ent, &driver);
 762 }
 763
 764 static int __init vmwgfx_init(void)
 765 {
 766         int ret;
 767         ret = drm_init(&driver);
 768         if (ret)
 769                 DRM_ERROR("Failed initializing DRM.\n");
 770         return ret;
 771 }
 772
 773 static void __exit vmwgfx_exit(void)
 774 {
 775         drm_exit(&driver);
 776 }
 777
 778 module_init(vmwgfx_init);
 779 module_exit(vmwgfx_exit);
 780
 781 MODULE_AUTHOR("VMware Inc. and others");
 782 MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device");
 783 MODULE_LICENSE("GPL and additional rights");