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 #include <linux/module.h>
  28
  29 #include <drm/drmP.h>
  30 #include "vmwgfx_drv.h"
  31 #include <drm/ttm/ttm_placement.h>
  32 #include <drm/ttm/ttm_bo_driver.h>
  33 #include <drm/ttm/ttm_object.h>
  34 #include <drm/ttm/ttm_module.h>
  35
  36 #define VMWGFX_DRIVER_NAME "vmwgfx"
  37 #define VMWGFX_DRIVER_DESC "Linux drm driver for VMware graphics devices"
  38 #define VMWGFX_CHIP_SVGAII 0
  39 #define VMW_FB_RESERVATION 0
  40
  41 #define VMW_MIN_INITIAL_WIDTH 800
  42 #define VMW_MIN_INITIAL_HEIGHT 600
  43
  44
  45 /**
  46  * Fully encoded drm commands. Might move to vmw_drm.h
  47  */
  48
  49 #define DRM_IOCTL_VMW_GET_PARAM                                 \
  50         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GET_PARAM,          \
  51                  struct drm_vmw_getparam_arg)
  52 #define DRM_IOCTL_VMW_ALLOC_DMABUF                              \
  53         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_ALLOC_DMABUF,       \
  54                 union drm_vmw_alloc_dmabuf_arg)
  55 #define DRM_IOCTL_VMW_UNREF_DMABUF                              \
  56         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_DMABUF,        \
  57                 struct drm_vmw_unref_dmabuf_arg)
  58 #define DRM_IOCTL_VMW_CURSOR_BYPASS                             \
  59         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CURSOR_BYPASS,       \
  60                  struct drm_vmw_cursor_bypass_arg)
  61
  62 #define DRM_IOCTL_VMW_CONTROL_STREAM                            \
  63         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CONTROL_STREAM,      \
  64                  struct drm_vmw_control_stream_arg)
  65 #define DRM_IOCTL_VMW_CLAIM_STREAM                              \
  66         DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CLAIM_STREAM,        \
  67                  struct drm_vmw_stream_arg)
  68 #define DRM_IOCTL_VMW_UNREF_STREAM                              \
  69         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_STREAM,        \
  70                  struct drm_vmw_stream_arg)
  71
  72 #define DRM_IOCTL_VMW_CREATE_CONTEXT                            \
  73         DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CREATE_CONTEXT,      \
  74                 struct drm_vmw_context_arg)
  75 #define DRM_IOCTL_VMW_UNREF_CONTEXT                             \
  76         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_CONTEXT,       \
  77                 struct drm_vmw_context_arg)
  78 #define DRM_IOCTL_VMW_CREATE_SURFACE                            \
  79         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SURFACE,     \
  80                  union drm_vmw_surface_create_arg)
  81 #define DRM_IOCTL_VMW_UNREF_SURFACE                             \
  82         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SURFACE,       \
  83                  struct drm_vmw_surface_arg)
  84 #define DRM_IOCTL_VMW_REF_SURFACE                               \
  85         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_REF_SURFACE,        \
  86                  union drm_vmw_surface_reference_arg)
  87 #define DRM_IOCTL_VMW_EXECBUF                                   \
  88         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_EXECBUF,             \
  89                 struct drm_vmw_execbuf_arg)
  90 #define DRM_IOCTL_VMW_GET_3D_CAP                                \
  91         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_GET_3D_CAP,          \
  92                  struct drm_vmw_get_3d_cap_arg)
  93 #define DRM_IOCTL_VMW_FENCE_WAIT                                \
  94         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_WAIT,         \
  95                  struct drm_vmw_fence_wait_arg)
  96 #define DRM_IOCTL_VMW_FENCE_SIGNALED                            \
  97         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_SIGNALED,     \
  98                  struct drm_vmw_fence_signaled_arg)
  99 #define DRM_IOCTL_VMW_FENCE_UNREF                               \
 100         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_UNREF,         \
 101                  struct drm_vmw_fence_arg)
 102 #define DRM_IOCTL_VMW_FENCE_EVENT                               \
 103         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_EVENT,         \
 104                  struct drm_vmw_fence_event_arg)
 105 #define DRM_IOCTL_VMW_PRESENT                                   \
 106         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT,             \
 107                  struct drm_vmw_present_arg)
 108 #define DRM_IOCTL_VMW_PRESENT_READBACK                          \
 109         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT_READBACK,    \
 110                  struct drm_vmw_present_readback_arg)
 111 #define DRM_IOCTL_VMW_UPDATE_LAYOUT                             \
 112         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT,       \
 113                  struct drm_vmw_update_layout_arg)
 114
 115 /**
 116  * The core DRM version of this macro doesn't account for
 117  * DRM_COMMAND_BASE.
 118  */
 119
 120 #define VMW_IOCTL_DEF(ioctl, func, flags) \
 121   [DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = {DRM_##ioctl, flags, func, DRM_IOCTL_##ioctl}
 122
 123 /**
 124  * Ioctl definitions.
 125  */
 126
 127 static const struct drm_ioctl_desc vmw_ioctls[] = {
 128         VMW_IOCTL_DEF(VMW_GET_PARAM, vmw_getparam_ioctl,
 129                       DRM_AUTH | DRM_UNLOCKED),
 130         VMW_IOCTL_DEF(VMW_ALLOC_DMABUF, vmw_dmabuf_alloc_ioctl,
 131                       DRM_AUTH | DRM_UNLOCKED),
 132         VMW_IOCTL_DEF(VMW_UNREF_DMABUF, vmw_dmabuf_unref_ioctl,
 133                       DRM_AUTH | DRM_UNLOCKED),
 134         VMW_IOCTL_DEF(VMW_CURSOR_BYPASS,
 135                       vmw_kms_cursor_bypass_ioctl,
 136                       DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
 137
 138         VMW_IOCTL_DEF(VMW_CONTROL_STREAM, vmw_overlay_ioctl,
 139                       DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
 140         VMW_IOCTL_DEF(VMW_CLAIM_STREAM, vmw_stream_claim_ioctl,
 141                       DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
 142         VMW_IOCTL_DEF(VMW_UNREF_STREAM, vmw_stream_unref_ioctl,
 143                       DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
 144
 145         VMW_IOCTL_DEF(VMW_CREATE_CONTEXT, vmw_context_define_ioctl,
 146                       DRM_AUTH | DRM_UNLOCKED),
 147         VMW_IOCTL_DEF(VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl,
 148                       DRM_AUTH | DRM_UNLOCKED),
 149         VMW_IOCTL_DEF(VMW_CREATE_SURFACE, vmw_surface_define_ioctl,
 150                       DRM_AUTH | DRM_UNLOCKED),
 151         VMW_IOCTL_DEF(VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl,
 152                       DRM_AUTH | DRM_UNLOCKED),
 153         VMW_IOCTL_DEF(VMW_REF_SURFACE, vmw_surface_reference_ioctl,
 154                       DRM_AUTH | DRM_UNLOCKED),
 155         VMW_IOCTL_DEF(VMW_EXECBUF, vmw_execbuf_ioctl,
 156                       DRM_AUTH | DRM_UNLOCKED),
 157         VMW_IOCTL_DEF(VMW_FENCE_WAIT, vmw_fence_obj_wait_ioctl,
 158                       DRM_AUTH | DRM_UNLOCKED),
 159         VMW_IOCTL_DEF(VMW_FENCE_SIGNALED,
 160                       vmw_fence_obj_signaled_ioctl,
 161                       DRM_AUTH | DRM_UNLOCKED),
 162         VMW_IOCTL_DEF(VMW_FENCE_UNREF, vmw_fence_obj_unref_ioctl,
 163                       DRM_AUTH | DRM_UNLOCKED),
 164         VMW_IOCTL_DEF(VMW_FENCE_EVENT,
 165                       vmw_fence_event_ioctl,
 166                       DRM_AUTH | DRM_UNLOCKED),
 167         VMW_IOCTL_DEF(VMW_GET_3D_CAP, vmw_get_cap_3d_ioctl,
 168                       DRM_AUTH | DRM_UNLOCKED),
 169
 170         /* these allow direct access to the framebuffers mark as master only */
 171         VMW_IOCTL_DEF(VMW_PRESENT, vmw_present_ioctl,
 172                       DRM_MASTER | DRM_AUTH | DRM_UNLOCKED),
 173         VMW_IOCTL_DEF(VMW_PRESENT_READBACK,
 174                       vmw_present_readback_ioctl,
 175                       DRM_MASTER | DRM_AUTH | DRM_UNLOCKED),
 176         VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT,
 177                       vmw_kms_update_layout_ioctl,
 178                       DRM_MASTER | DRM_UNLOCKED),
 179 };
 180
 181 static struct pci_device_id vmw_pci_id_list[] = {
 182         {0x15ad, 0x0405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VMWGFX_CHIP_SVGAII},
 183         {0, 0, 0}
 184 };
 185 MODULE_DEVICE_TABLE(pci, vmw_pci_id_list);
 186
 187 static int enable_fbdev = IS_ENABLED(CONFIG_DRM_VMWGFX_FBCON);
 188
 189 static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
 190 static void vmw_master_init(struct vmw_master *);
 191 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
 192                               void *ptr);
 193
 194 MODULE_PARM_DESC(enable_fbdev, "Enable vmwgfx fbdev");
 195 module_param_named(enable_fbdev, enable_fbdev, int, 0600);
 196
 197 static void vmw_print_capabilities(uint32_t capabilities)
 198 {
 199         DRM_INFO("Capabilities:\n");
 200         if (capabilities & SVGA_CAP_RECT_COPY)
 201                 DRM_INFO("  Rect copy.\n");
 202         if (capabilities & SVGA_CAP_CURSOR)
 203                 DRM_INFO("  Cursor.\n");
 204         if (capabilities & SVGA_CAP_CURSOR_BYPASS)
 205                 DRM_INFO("  Cursor bypass.\n");
 206         if (capabilities & SVGA_CAP_CURSOR_BYPASS_2)
 207                 DRM_INFO("  Cursor bypass 2.\n");
 208         if (capabilities & SVGA_CAP_8BIT_EMULATION)
 209                 DRM_INFO("  8bit emulation.\n");
 210         if (capabilities & SVGA_CAP_ALPHA_CURSOR)
 211                 DRM_INFO("  Alpha cursor.\n");
 212         if (capabilities & SVGA_CAP_3D)
 213                 DRM_INFO("  3D.\n");
 214         if (capabilities & SVGA_CAP_EXTENDED_FIFO)
 215                 DRM_INFO("  Extended Fifo.\n");
 216         if (capabilities & SVGA_CAP_MULTIMON)
 217                 DRM_INFO("  Multimon.\n");
 218         if (capabilities & SVGA_CAP_PITCHLOCK)
 219                 DRM_INFO("  Pitchlock.\n");
 220         if (capabilities & SVGA_CAP_IRQMASK)
 221                 DRM_INFO("  Irq mask.\n");
 222         if (capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)
 223                 DRM_INFO("  Display Topology.\n");
 224         if (capabilities & SVGA_CAP_GMR)
 225                 DRM_INFO("  GMR.\n");
 226         if (capabilities & SVGA_CAP_TRACES)
 227                 DRM_INFO("  Traces.\n");
 228         if (capabilities & SVGA_CAP_GMR2)
 229                 DRM_INFO("  GMR2.\n");
 230         if (capabilities & SVGA_CAP_SCREEN_OBJECT_2)
 231                 DRM_INFO("  Screen Object 2.\n");
 232 }
 233
 234
 235 /**
 236  * vmw_execbuf_prepare_dummy_query - Initialize a query result structure at
 237  * the start of a buffer object.
 238  *
 239  * @dev_priv: The device private structure.
 240  *
 241  * This function will idle the buffer using an uninterruptible wait, then
 242  * map the first page and initialize a pending occlusion query result structure,
 243  * Finally it will unmap the buffer.
 244  *
 245  * TODO: Since we're only mapping a single page, we should optimize the map
 246  * to use kmap_atomic / iomap_atomic.
 247  */
 248 static void vmw_dummy_query_bo_prepare(struct vmw_private *dev_priv)
 249 {
 250         struct ttm_bo_kmap_obj map;
 251         volatile SVGA3dQueryResult *result;
 252         bool dummy;
 253         int ret;
 254         struct ttm_bo_device *bdev = &dev_priv->bdev;
 255         struct ttm_buffer_object *bo = dev_priv->dummy_query_bo;
 256
 257         ttm_bo_reserve(bo, false, false, false, 0);
 258         spin_lock(&bdev->fence_lock);
 259         ret = ttm_bo_wait(bo, false, false, false);
 260         spin_unlock(&bdev->fence_lock);
 261         if (unlikely(ret != 0))
 262                 (void) vmw_fallback_wait(dev_priv, false, true, 0, false,
 263                                          10*HZ);
 264
 265         ret = ttm_bo_kmap(bo, 0, 1, &map);
 266         if (likely(ret == 0)) {
 267                 result = ttm_kmap_obj_virtual(&map, &dummy);
 268                 result->totalSize = sizeof(*result);
 269                 result->state = SVGA3D_QUERYSTATE_PENDING;
 270                 result->result32 = 0xff;
 271                 ttm_bo_kunmap(&map);
 272         } else
 273                 DRM_ERROR("Dummy query buffer map failed.\n");
 274         ttm_bo_unreserve(bo);
 275 }
 276
 277
 278 /**
 279  * vmw_dummy_query_bo_create - create a bo to hold a dummy query result
 280  *
 281  * @dev_priv: A device private structure.
 282  *
 283  * This function creates a small buffer object that holds the query
 284  * result for dummy queries emitted as query barriers.
 285  * No interruptible waits are done within this function.
 286  *
 287  * Returns an error if bo creation fails.
 288  */
 289 static int vmw_dummy_query_bo_create(struct vmw_private *dev_priv)
 290 {
 291         return ttm_bo_create(&dev_priv->bdev,
 292                              PAGE_SIZE,
 293                              ttm_bo_type_device,
 294                              &vmw_vram_sys_placement,
 295                              0, false, NULL,
 296                              &dev_priv->dummy_query_bo);
 297 }
 298
 299
 300 static int vmw_request_device(struct vmw_private *dev_priv)
 301 {
 302         int ret;
 303
 304         ret = vmw_fifo_init(dev_priv, &dev_priv->fifo);
 305         if (unlikely(ret != 0)) {
 306                 DRM_ERROR("Unable to initialize FIFO.\n");
 307                 return ret;
 308         }
 309         vmw_fence_fifo_up(dev_priv->fman);
 310         ret = vmw_dummy_query_bo_create(dev_priv);
 311         if (unlikely(ret != 0))
 312                 goto out_no_query_bo;
 313         vmw_dummy_query_bo_prepare(dev_priv);
 314
 315         return 0;
 316
 317 out_no_query_bo:
 318         vmw_fence_fifo_down(dev_priv->fman);
 319         vmw_fifo_release(dev_priv, &dev_priv->fifo);
 320         return ret;
 321 }
 322
 323 static void vmw_release_device(struct vmw_private *dev_priv)
 324 {
 325         /*
 326          * Previous destructions should've released
 327          * the pinned bo.
 328          */
 329
 330         BUG_ON(dev_priv->pinned_bo != NULL);
 331
 332         ttm_bo_unref(&dev_priv->dummy_query_bo);
 333         vmw_fence_fifo_down(dev_priv->fman);
 334         vmw_fifo_release(dev_priv, &dev_priv->fifo);
 335 }
 336
 337 /**
 338  * Increase the 3d resource refcount.
 339  * If the count was prevously zero, initialize the fifo, switching to svga
 340  * mode. Note that the master holds a ref as well, and may request an
 341  * explicit switch to svga mode if fb is not running, using @unhide_svga.
 342  */
 343 int vmw_3d_resource_inc(struct vmw_private *dev_priv,
 344                         bool unhide_svga)
 345 {
 346         int ret = 0;
 347
 348         mutex_lock(&dev_priv->release_mutex);
 349         if (unlikely(dev_priv->num_3d_resources++ == 0)) {
 350                 ret = vmw_request_device(dev_priv);
 351                 if (unlikely(ret != 0))
 352                         --dev_priv->num_3d_resources;
 353         } else if (unhide_svga) {
 354                 mutex_lock(&dev_priv->hw_mutex);
 355                 vmw_write(dev_priv, SVGA_REG_ENABLE,
 356                           vmw_read(dev_priv, SVGA_REG_ENABLE) &
 357                           ~SVGA_REG_ENABLE_HIDE);
 358                 mutex_unlock(&dev_priv->hw_mutex);
 359         }
 360
 361         mutex_unlock(&dev_priv->release_mutex);
 362         return ret;
 363 }
 364
 365 /**
 366  * Decrease the 3d resource refcount.
 367  * If the count reaches zero, disable the fifo, switching to vga mode.
 368  * Note that the master holds a refcount as well, and may request an
 369  * explicit switch to vga mode when it releases its refcount to account
 370  * for the situation of an X server vt switch to VGA with 3d resources
 371  * active.
 372  */
 373 void vmw_3d_resource_dec(struct vmw_private *dev_priv,
 374                          bool hide_svga)
 375 {
 376         int32_t n3d;
 377
 378         mutex_lock(&dev_priv->release_mutex);
 379         if (unlikely(--dev_priv->num_3d_resources == 0))
 380                 vmw_release_device(dev_priv);
 381         else if (hide_svga) {
 382                 mutex_lock(&dev_priv->hw_mutex);
 383                 vmw_write(dev_priv, SVGA_REG_ENABLE,
 384                           vmw_read(dev_priv, SVGA_REG_ENABLE) |
 385                           SVGA_REG_ENABLE_HIDE);
 386                 mutex_unlock(&dev_priv->hw_mutex);
 387         }
 388
 389         n3d = (int32_t) dev_priv->num_3d_resources;
 390         mutex_unlock(&dev_priv->release_mutex);
 391
 392         BUG_ON(n3d < 0);
 393 }
 394
 395 /**
 396  * Sets the initial_[width|height] fields on the given vmw_private.
 397  *
 398  * It does so by reading SVGA_REG_[WIDTH|HEIGHT] regs and then
 399  * clamping the value to fb_max_[width|height] fields and the
 400  * VMW_MIN_INITIAL_[WIDTH|HEIGHT].
 401  * If the values appear to be invalid, set them to
 402  * VMW_MIN_INITIAL_[WIDTH|HEIGHT].
 403  */
 404 static void vmw_get_initial_size(struct vmw_private *dev_priv)
 405 {
 406         uint32_t width;
 407         uint32_t height;
 408
 409         width = vmw_read(dev_priv, SVGA_REG_WIDTH);
 410         height = vmw_read(dev_priv, SVGA_REG_HEIGHT);
 411
 412         width = max_t(uint32_t, width, VMW_MIN_INITIAL_WIDTH);
 413         height = max_t(uint32_t, height, VMW_MIN_INITIAL_HEIGHT);
 414
 415         if (width > dev_priv->fb_max_width ||
 416             height > dev_priv->fb_max_height) {
 417
 418                 /*
 419                  * This is a host error and shouldn't occur.
 420                  */
 421
 422                 width = VMW_MIN_INITIAL_WIDTH;
 423                 height = VMW_MIN_INITIAL_HEIGHT;
 424         }
 425
 426         dev_priv->initial_width = width;
 427         dev_priv->initial_height = height;
 428 }
 429
 430 static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 431 {
 432         struct vmw_private *dev_priv;
 433         int ret;
 434         uint32_t svga_id;
 435         enum vmw_res_type i;
 436
 437         dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
 438         if (unlikely(dev_priv == NULL)) {
 439                 DRM_ERROR("Failed allocating a device private struct.\n");
 440                 return -ENOMEM;
 441         }
 442
 443         pci_set_master(dev->pdev);
 444
 445         dev_priv->dev = dev;
 446         dev_priv->vmw_chipset = chipset;
 447         dev_priv->last_read_seqno = (uint32_t) -100;
 448         mutex_init(&dev_priv->hw_mutex);
 449         mutex_init(&dev_priv->cmdbuf_mutex);
 450         mutex_init(&dev_priv->release_mutex);
 451         rwlock_init(&dev_priv->resource_lock);
 452
 453         for (i = vmw_res_context; i < vmw_res_max; ++i) {
 454                 idr_init(&dev_priv->res_idr[i]);
 455                 INIT_LIST_HEAD(&dev_priv->res_lru[i]);
 456         }
 457
 458         mutex_init(&dev_priv->init_mutex);
 459         init_waitqueue_head(&dev_priv->fence_queue);
 460         init_waitqueue_head(&dev_priv->fifo_queue);
 461         dev_priv->fence_queue_waiters = 0;
 462         atomic_set(&dev_priv->fifo_queue_waiters, 0);
 463
 464         dev_priv->used_memory_size = 0;
 465
 466         dev_priv->io_start = pci_resource_start(dev->pdev, 0);
 467         dev_priv->vram_start = pci_resource_start(dev->pdev, 1);
 468         dev_priv->mmio_start = pci_resource_start(dev->pdev, 2);
 469
 470         dev_priv->enable_fb = enable_fbdev;
 471
 472         mutex_lock(&dev_priv->hw_mutex);
 473
 474         vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
 475         svga_id = vmw_read(dev_priv, SVGA_REG_ID);
 476         if (svga_id != SVGA_ID_2) {
 477                 ret = -ENOSYS;
 478                 DRM_ERROR("Unsupported SVGA ID 0x%x\n", svga_id);
 479                 mutex_unlock(&dev_priv->hw_mutex);
 480                 goto out_err0;
 481         }
 482
 483         dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES);
 484
 485         dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE);
 486         dev_priv->mmio_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE);
 487         dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH);
 488         dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT);
 489
 490         vmw_get_initial_size(dev_priv);
 491
 492         if (dev_priv->capabilities & SVGA_CAP_GMR) {
 493                 dev_priv->max_gmr_descriptors =
 494                         vmw_read(dev_priv,
 495                                  SVGA_REG_GMR_MAX_DESCRIPTOR_LENGTH);
 496                 dev_priv->max_gmr_ids =
 497                         vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS);
 498         }
 499         if (dev_priv->capabilities & SVGA_CAP_GMR2) {
 500                 dev_priv->max_gmr_pages =
 501                         vmw_read(dev_priv, SVGA_REG_GMRS_MAX_PAGES);
 502                 dev_priv->memory_size =
 503                         vmw_read(dev_priv, SVGA_REG_MEMORY_SIZE);
 504                 dev_priv->memory_size -= dev_priv->vram_size;
 505         } else {
 506                 /*
 507                  * An arbitrary limit of 512MiB on surface
 508                  * memory. But all HWV8 hardware supports GMR2.
 509                  */
 510                 dev_priv->memory_size = 512*1024*1024;
 511         }
 512
 513         mutex_unlock(&dev_priv->hw_mutex);
 514
 515         vmw_print_capabilities(dev_priv->capabilities);
 516
 517         if (dev_priv->capabilities & SVGA_CAP_GMR) {
 518                 DRM_INFO("Max GMR ids is %u\n",
 519                          (unsigned)dev_priv->max_gmr_ids);
 520                 DRM_INFO("Max GMR descriptors is %u\n",
 521                          (unsigned)dev_priv->max_gmr_descriptors);
 522         }
 523         if (dev_priv->capabilities & SVGA_CAP_GMR2) {
 524                 DRM_INFO("Max number of GMR pages is %u\n",
 525                          (unsigned)dev_priv->max_gmr_pages);
 526                 DRM_INFO("Max dedicated hypervisor surface memory is %u kiB\n",
 527                          (unsigned)dev_priv->memory_size / 1024);
 528         }
 529         DRM_INFO("VRAM at 0x%08x size is %u kiB\n",
 530                  dev_priv->vram_start, dev_priv->vram_size / 1024);
 531         DRM_INFO("MMIO at 0x%08x size is %u kiB\n",
 532                  dev_priv->mmio_start, dev_priv->mmio_size / 1024);
 533
 534         ret = vmw_ttm_global_init(dev_priv);
 535         if (unlikely(ret != 0))
 536                 goto out_err0;
 537
 538
 539         vmw_master_init(&dev_priv->fbdev_master);
 540         ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
 541         dev_priv->active_master = &dev_priv->fbdev_master;
 542
 543
 544         ret = ttm_bo_device_init(&dev_priv->bdev,
 545                                  dev_priv->bo_global_ref.ref.object,
 546                                  &vmw_bo_driver, VMWGFX_FILE_PAGE_OFFSET,
 547                                  false);
 548         if (unlikely(ret != 0)) {
 549                 DRM_ERROR("Failed initializing TTM buffer object driver.\n");
 550                 goto out_err1;
 551         }
 552
 553         ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM,
 554                              (dev_priv->vram_size >> PAGE_SHIFT));
 555         if (unlikely(ret != 0)) {
 556                 DRM_ERROR("Failed initializing memory manager for VRAM.\n");
 557                 goto out_err2;
 558         }
 559
 560         dev_priv->has_gmr = true;
 561         if (ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_GMR,
 562                            dev_priv->max_gmr_ids) != 0) {
 563                 DRM_INFO("No GMR memory available. "
 564                          "Graphics memory resources are very limited.\n");
 565                 dev_priv->has_gmr = false;
 566         }
 567
 568         dev_priv->mmio_mtrr = arch_phys_wc_add(dev_priv->mmio_start,
 569                                                dev_priv->mmio_size);
 570
 571         dev_priv->mmio_virt = ioremap_wc(dev_priv->mmio_start,
 572                                          dev_priv->mmio_size);
 573
 574         if (unlikely(dev_priv->mmio_virt == NULL)) {
 575                 ret = -ENOMEM;
 576                 DRM_ERROR("Failed mapping MMIO.\n");
 577                 goto out_err3;
 578         }
 579
 580         /* Need mmio memory to check for fifo pitchlock cap. */
 581         if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
 582             !(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) &&
 583             !vmw_fifo_have_pitchlock(dev_priv)) {
 584                 ret = -ENOSYS;
 585                 DRM_ERROR("Hardware has no pitchlock\n");
 586                 goto out_err4;
 587         }
 588
 589         dev_priv->tdev = ttm_object_device_init
 590             (dev_priv->mem_global_ref.object, 12);
 591
 592         if (unlikely(dev_priv->tdev == NULL)) {
 593                 DRM_ERROR("Unable to initialize TTM object management.\n");
 594                 ret = -ENOMEM;
 595                 goto out_err4;
 596         }
 597
 598         dev->dev_private = dev_priv;
 599
 600         ret = pci_request_regions(dev->pdev, "vmwgfx probe");
 601         dev_priv->stealth = (ret != 0);
 602         if (dev_priv->stealth) {
 603                 /**
 604                  * Request at least the mmio PCI resource.
 605                  */
 606
 607                 DRM_INFO("It appears like vesafb is loaded. "
 608                          "Ignore above error if any.\n");
 609                 ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe");
 610                 if (unlikely(ret != 0)) {
 611                         DRM_ERROR("Failed reserving the SVGA MMIO resource.\n");
 612                         goto out_no_device;
 613                 }
 614         }
 615
 616         if (dev_priv->capabilities & SVGA_CAP_IRQMASK) {
 617                 ret = drm_irq_install(dev);
 618                 if (ret != 0) {
 619                         DRM_ERROR("Failed installing irq: %d\n", ret);
 620                         goto out_no_irq;
 621                 }
 622         }
 623
 624         dev_priv->fman = vmw_fence_manager_init(dev_priv);
 625         if (unlikely(dev_priv->fman == NULL)) {
 626                 ret = -ENOMEM;
 627                 goto out_no_fman;
 628         }
 629
 630         vmw_kms_save_vga(dev_priv);
 631
 632         /* Start kms and overlay systems, needs fifo. */
 633         ret = vmw_kms_init(dev_priv);
 634         if (unlikely(ret != 0))
 635                 goto out_no_kms;
 636         vmw_overlay_init(dev_priv);
 637
 638         if (dev_priv->enable_fb) {
 639                 ret = vmw_3d_resource_inc(dev_priv, true);
 640                 if (unlikely(ret != 0))
 641                         goto out_no_fifo;
 642                 vmw_fb_init(dev_priv);
 643         }
 644
 645         dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
 646         register_pm_notifier(&dev_priv->pm_nb);
 647
 648         return 0;
 649
 650 out_no_fifo:
 651         vmw_overlay_close(dev_priv);
 652         vmw_kms_close(dev_priv);
 653 out_no_kms:
 654         vmw_kms_restore_vga(dev_priv);
 655         vmw_fence_manager_takedown(dev_priv->fman);
 656 out_no_fman:
 657         if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
 658                 drm_irq_uninstall(dev_priv->dev);
 659 out_no_irq:
 660         if (dev_priv->stealth)
 661                 pci_release_region(dev->pdev, 2);
 662         else
 663                 pci_release_regions(dev->pdev);
 664 out_no_device:
 665         ttm_object_device_release(&dev_priv->tdev);
 666 out_err4:
 667         iounmap(dev_priv->mmio_virt);
 668 out_err3:
 669         arch_phys_wc_del(dev_priv->mmio_mtrr);
 670         if (dev_priv->has_gmr)
 671                 (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
 672         (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
 673 out_err2:
 674         (void)ttm_bo_device_release(&dev_priv->bdev);
 675 out_err1:
 676         vmw_ttm_global_release(dev_priv);
 677 out_err0:
 678         for (i = vmw_res_context; i < vmw_res_max; ++i)
 679                 idr_destroy(&dev_priv->res_idr[i]);
 680
 681         kfree(dev_priv);
 682         return ret;
 683 }
 684
 685 static int vmw_driver_unload(struct drm_device *dev)
 686 {
 687         struct vmw_private *dev_priv = vmw_priv(dev);
 688         enum vmw_res_type i;
 689
 690         unregister_pm_notifier(&dev_priv->pm_nb);
 691
 692         if (dev_priv->ctx.res_ht_initialized)
 693                 drm_ht_remove(&dev_priv->ctx.res_ht);
 694         if (dev_priv->ctx.cmd_bounce)
 695                 vfree(dev_priv->ctx.cmd_bounce);
 696         if (dev_priv->enable_fb) {
 697                 vmw_fb_close(dev_priv);
 698                 vmw_kms_restore_vga(dev_priv);
 699                 vmw_3d_resource_dec(dev_priv, false);
 700         }
 701         vmw_kms_close(dev_priv);
 702         vmw_overlay_close(dev_priv);
 703         vmw_fence_manager_takedown(dev_priv->fman);
 704         if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
 705                 drm_irq_uninstall(dev_priv->dev);
 706         if (dev_priv->stealth)
 707                 pci_release_region(dev->pdev, 2);
 708         else
 709                 pci_release_regions(dev->pdev);
 710
 711         ttm_object_device_release(&dev_priv->tdev);
 712         iounmap(dev_priv->mmio_virt);
 713         arch_phys_wc_del(dev_priv->mmio_mtrr);
 714         if (dev_priv->has_gmr)
 715                 (void)ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
 716         (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
 717         (void)ttm_bo_device_release(&dev_priv->bdev);
 718         vmw_ttm_global_release(dev_priv);
 719
 720         for (i = vmw_res_context; i < vmw_res_max; ++i)
 721                 idr_destroy(&dev_priv->res_idr[i]);
 722
 723         kfree(dev_priv);
 724
 725         return 0;
 726 }
 727
 728 static void vmw_preclose(struct drm_device *dev,
 729                          struct drm_file *file_priv)
 730 {
 731         struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
 732         struct vmw_private *dev_priv = vmw_priv(dev);
 733
 734         vmw_event_fence_fpriv_gone(dev_priv->fman, &vmw_fp->fence_events);
 735 }
 736
 737 static void vmw_postclose(struct drm_device *dev,
 738                          struct drm_file *file_priv)
 739 {
 740         struct vmw_fpriv *vmw_fp;
 741
 742         vmw_fp = vmw_fpriv(file_priv);
 743
 744         if (vmw_fp->locked_master) {
 745                 struct vmw_master *vmaster =
 746                         vmw_master(vmw_fp->locked_master);
 747
 748                 ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
 749                 ttm_vt_unlock(&vmaster->lock);
 750                 drm_master_put(&vmw_fp->locked_master);
 751         }
 752
 753         ttm_object_file_release(&vmw_fp->tfile);
 754         kfree(vmw_fp);
 755 }
 756
 757 static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
 758 {
 759         struct vmw_private *dev_priv = vmw_priv(dev);
 760         struct vmw_fpriv *vmw_fp;
 761         int ret = -ENOMEM;
 762
 763         vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL);
 764         if (unlikely(vmw_fp == NULL))
 765                 return ret;
 766
 767         INIT_LIST_HEAD(&vmw_fp->fence_events);
 768         vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev, 10);
 769         if (unlikely(vmw_fp->tfile == NULL))
 770                 goto out_no_tfile;
 771
 772         file_priv->driver_priv = vmw_fp;
 773         dev_priv->bdev.dev_mapping = dev->dev_mapping;
 774
 775         return 0;
 776
 777 out_no_tfile:
 778         kfree(vmw_fp);
 779         return ret;
 780 }
 781
 782 static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd,
 783                                unsigned long arg)
 784 {
 785         struct drm_file *file_priv = filp->private_data;
 786         struct drm_device *dev = file_priv->minor->dev;
 787         unsigned int nr = DRM_IOCTL_NR(cmd);
 788
 789         /*
 790          * Do extra checking on driver private ioctls.
 791          */
 792
 793         if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
 794             && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
 795                 const struct drm_ioctl_desc *ioctl =
 796                     &vmw_ioctls[nr - DRM_COMMAND_BASE];
 797
 798                 if (unlikely(ioctl->cmd_drv != cmd)) {
 799                         DRM_ERROR("Invalid command format, ioctl %d\n",
 800                                   nr - DRM_COMMAND_BASE);
 801                         return -EINVAL;
 802                 }
 803         }
 804
 805         return drm_ioctl(filp, cmd, arg);
 806 }
 807
 808 static void vmw_lastclose(struct drm_device *dev)
 809 {
 810         struct drm_crtc *crtc;
 811         struct drm_mode_set set;
 812         int ret;
 813
 814         set.x = 0;
 815         set.y = 0;
 816         set.fb = NULL;
 817         set.mode = NULL;
 818         set.connectors = NULL;
 819         set.num_connectors = 0;
 820
 821         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 822                 set.crtc = crtc;
 823                 ret = drm_mode_set_config_internal(&set);
 824                 WARN_ON(ret != 0);
 825         }
 826
 827 }
 828
 829 static void vmw_master_init(struct vmw_master *vmaster)
 830 {
 831         ttm_lock_init(&vmaster->lock);
 832         INIT_LIST_HEAD(&vmaster->fb_surf);
 833         mutex_init(&vmaster->fb_surf_mutex);
 834 }
 835
 836 static int vmw_master_create(struct drm_device *dev,
 837                              struct drm_master *master)
 838 {
 839         struct vmw_master *vmaster;
 840
 841         vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL);
 842         if (unlikely(vmaster == NULL))
 843                 return -ENOMEM;
 844
 845         vmw_master_init(vmaster);
 846         ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
 847         master->driver_priv = vmaster;
 848
 849         return 0;
 850 }
 851
 852 static void vmw_master_destroy(struct drm_device *dev,
 853                                struct drm_master *master)
 854 {
 855         struct vmw_master *vmaster = vmw_master(master);
 856
 857         master->driver_priv = NULL;
 858         kfree(vmaster);
 859 }
 860
 861
 862 static int vmw_master_set(struct drm_device *dev,
 863                           struct drm_file *file_priv,
 864                           bool from_open)
 865 {
 866         struct vmw_private *dev_priv = vmw_priv(dev);
 867         struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
 868         struct vmw_master *active = dev_priv->active_master;
 869         struct vmw_master *vmaster = vmw_master(file_priv->master);
 870         int ret = 0;
 871
 872         if (!dev_priv->enable_fb) {
 873                 ret = vmw_3d_resource_inc(dev_priv, true);
 874                 if (unlikely(ret != 0))
 875                         return ret;
 876                 vmw_kms_save_vga(dev_priv);
 877                 mutex_lock(&dev_priv->hw_mutex);
 878                 vmw_write(dev_priv, SVGA_REG_TRACES, 0);
 879                 mutex_unlock(&dev_priv->hw_mutex);
 880         }
 881
 882         if (active) {
 883                 BUG_ON(active != &dev_priv->fbdev_master);
 884                 ret = ttm_vt_lock(&active->lock, false, vmw_fp->tfile);
 885                 if (unlikely(ret != 0))
 886                         goto out_no_active_lock;
 887
 888                 ttm_lock_set_kill(&active->lock, true, SIGTERM);
 889                 ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
 890                 if (unlikely(ret != 0)) {
 891                         DRM_ERROR("Unable to clean VRAM on "
 892                                   "master drop.\n");
 893                 }
 894
 895                 dev_priv->active_master = NULL;
 896         }
 897
 898         ttm_lock_set_kill(&vmaster->lock, false, SIGTERM);
 899         if (!from_open) {
 900                 ttm_vt_unlock(&vmaster->lock);
 901                 BUG_ON(vmw_fp->locked_master != file_priv->master);
 902                 drm_master_put(&vmw_fp->locked_master);
 903         }
 904
 905         dev_priv->active_master = vmaster;
 906
 907         return 0;
 908
 909 out_no_active_lock:
 910         if (!dev_priv->enable_fb) {
 911                 vmw_kms_restore_vga(dev_priv);
 912                 vmw_3d_resource_dec(dev_priv, true);
 913                 mutex_lock(&dev_priv->hw_mutex);
 914                 vmw_write(dev_priv, SVGA_REG_TRACES, 1);
 915                 mutex_unlock(&dev_priv->hw_mutex);
 916         }
 917         return ret;
 918 }
 919
 920 static void vmw_master_drop(struct drm_device *dev,
 921                             struct drm_file *file_priv,
 922                             bool from_release)
 923 {
 924         struct vmw_private *dev_priv = vmw_priv(dev);
 925         struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
 926         struct vmw_master *vmaster = vmw_master(file_priv->master);
 927         int ret;
 928
 929         /**
 930          * Make sure the master doesn't disappear while we have
 931          * it locked.
 932          */
 933
 934         vmw_fp->locked_master = drm_master_get(file_priv->master);
 935         ret = ttm_vt_lock(&vmaster->lock, false, vmw_fp->tfile);
 936         if (unlikely((ret != 0))) {
 937                 DRM_ERROR("Unable to lock TTM at VT switch.\n");
 938                 drm_master_put(&vmw_fp->locked_master);
 939         }
 940
 941         ttm_lock_set_kill(&vmaster->lock, false, SIGTERM);
 942         vmw_execbuf_release_pinned_bo(dev_priv);
 943
 944         if (!dev_priv->enable_fb) {
 945                 ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
 946                 if (unlikely(ret != 0))
 947                         DRM_ERROR("Unable to clean VRAM on master drop.\n");
 948                 vmw_kms_restore_vga(dev_priv);
 949                 vmw_3d_resource_dec(dev_priv, true);
 950                 mutex_lock(&dev_priv->hw_mutex);
 951                 vmw_write(dev_priv, SVGA_REG_TRACES, 1);
 952                 mutex_unlock(&dev_priv->hw_mutex);
 953         }
 954
 955         dev_priv->active_master = &dev_priv->fbdev_master;
 956         ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
 957         ttm_vt_unlock(&dev_priv->fbdev_master.lock);
 958
 959         if (dev_priv->enable_fb)
 960                 vmw_fb_on(dev_priv);
 961 }
 962
 963
 964 static void vmw_remove(struct pci_dev *pdev)
 965 {
 966         struct drm_device *dev = pci_get_drvdata(pdev);
 967
 968         drm_put_dev(dev);
 969 }
 970
 971 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
 972                               void *ptr)
 973 {
 974         struct vmw_private *dev_priv =
 975                 container_of(nb, struct vmw_private, pm_nb);
 976         struct vmw_master *vmaster = dev_priv->active_master;
 977
 978         switch (val) {
 979         case PM_HIBERNATION_PREPARE:
 980         case PM_SUSPEND_PREPARE:
 981                 ttm_suspend_lock(&vmaster->lock);
 982
 983                 /**
 984                  * This empties VRAM and unbinds all GMR bindings.
 985                  * Buffer contents is moved to swappable memory.
 986                  */
 987                 vmw_execbuf_release_pinned_bo(dev_priv);
 988                 vmw_resource_evict_all(dev_priv);
 989                 ttm_bo_swapout_all(&dev_priv->bdev);
 990
 991                 break;
 992         case PM_POST_HIBERNATION:
 993         case PM_POST_SUSPEND:
 994         case PM_POST_RESTORE:
 995                 ttm_suspend_unlock(&vmaster->lock);
 996
 997                 break;
 998         case PM_RESTORE_PREPARE:
 999                 break;
1000         default:
1001                 break;
1002         }
1003         return 0;
1004 }
1005
1006 /**
1007  * These might not be needed with the virtual SVGA device.
1008  */
1009
1010 static int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
1011 {
1012         struct drm_device *dev = pci_get_drvdata(pdev);
1013         struct vmw_private *dev_priv = vmw_priv(dev);
1014
1015         if (dev_priv->num_3d_resources != 0) {
1016                 DRM_INFO("Can't suspend or hibernate "
1017                          "while 3D resources are active.\n");
1018                 return -EBUSY;
1019         }
1020
1021         pci_save_state(pdev);
1022         pci_disable_device(pdev);
1023         pci_set_power_state(pdev, PCI_D3hot);
1024         return 0;
1025 }
1026
1027 static int vmw_pci_resume(struct pci_dev *pdev)
1028 {
1029         pci_set_power_state(pdev, PCI_D0);
1030         pci_restore_state(pdev);
1031         return pci_enable_device(pdev);
1032 }
1033
1034 static int vmw_pm_suspend(struct device *kdev)
1035 {
1036         struct pci_dev *pdev = to_pci_dev(kdev);
1037         struct pm_message dummy;
1038
1039         dummy.event = 0;
1040
1041         return vmw_pci_suspend(pdev, dummy);
1042 }
1043
1044 static int vmw_pm_resume(struct device *kdev)
1045 {
1046         struct pci_dev *pdev = to_pci_dev(kdev);
1047
1048         return vmw_pci_resume(pdev);
1049 }
1050
1051 static int vmw_pm_prepare(struct device *kdev)
1052 {
1053         struct pci_dev *pdev = to_pci_dev(kdev);
1054         struct drm_device *dev = pci_get_drvdata(pdev);
1055         struct vmw_private *dev_priv = vmw_priv(dev);
1056
1057         /**
1058          * Release 3d reference held by fbdev and potentially
1059          * stop fifo.
1060          */
1061         dev_priv->suspended = true;
1062         if (dev_priv->enable_fb)
1063                         vmw_3d_resource_dec(dev_priv, true);
1064
1065         if (dev_priv->num_3d_resources != 0) {
1066
1067                 DRM_INFO("Can't suspend or hibernate "
1068                          "while 3D resources are active.\n");
1069
1070                 if (dev_priv->enable_fb)
1071                         vmw_3d_resource_inc(dev_priv, true);
1072                 dev_priv->suspended = false;
1073                 return -EBUSY;
1074         }
1075
1076         return 0;
1077 }
1078
1079 static void vmw_pm_complete(struct device *kdev)
1080 {
1081         struct pci_dev *pdev = to_pci_dev(kdev);
1082         struct drm_device *dev = pci_get_drvdata(pdev);
1083         struct vmw_private *dev_priv = vmw_priv(dev);
1084
1085         mutex_lock(&dev_priv->hw_mutex);
1086         vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
1087         (void) vmw_read(dev_priv, SVGA_REG_ID);
1088         mutex_unlock(&dev_priv->hw_mutex);
1089
1090         /**
1091          * Reclaim 3d reference held by fbdev and potentially
1092          * start fifo.
1093          */
1094         if (dev_priv->enable_fb)
1095                         vmw_3d_resource_inc(dev_priv, false);
1096
1097         dev_priv->suspended = false;
1098 }
1099
1100 static const struct dev_pm_ops vmw_pm_ops = {
1101         .prepare = vmw_pm_prepare,
1102         .complete = vmw_pm_complete,
1103         .suspend = vmw_pm_suspend,
1104         .resume = vmw_pm_resume,
1105 };
1106
1107 static const struct file_operations vmwgfx_driver_fops = {
1108         .owner = THIS_MODULE,
1109         .open = drm_open,
1110         .release = drm_release,
1111         .unlocked_ioctl = vmw_unlocked_ioctl,
1112         .mmap = vmw_mmap,
1113         .poll = vmw_fops_poll,
1114         .read = vmw_fops_read,
1115 #if defined(CONFIG_COMPAT)
1116         .compat_ioctl = drm_compat_ioctl,
1117 #endif
1118         .llseek = noop_llseek,
1119 };
1120
1121 static struct drm_driver driver = {
1122         .driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
1123         DRIVER_MODESET,
1124         .load = vmw_driver_load,
1125         .unload = vmw_driver_unload,
1126         .lastclose = vmw_lastclose,
1127         .irq_preinstall = vmw_irq_preinstall,
1128         .irq_postinstall = vmw_irq_postinstall,
1129         .irq_uninstall = vmw_irq_uninstall,
1130         .irq_handler = vmw_irq_handler,
1131         .get_vblank_counter = vmw_get_vblank_counter,
1132         .enable_vblank = vmw_enable_vblank,
1133         .disable_vblank = vmw_disable_vblank,
1134         .ioctls = vmw_ioctls,
1135         .num_ioctls = DRM_ARRAY_SIZE(vmw_ioctls),
1136         .master_create = vmw_master_create,
1137         .master_destroy = vmw_master_destroy,
1138         .master_set = vmw_master_set,
1139         .master_drop = vmw_master_drop,
1140         .open = vmw_driver_open,
1141         .preclose = vmw_preclose,
1142         .postclose = vmw_postclose,
1143
1144         .dumb_create = vmw_dumb_create,
1145         .dumb_map_offset = vmw_dumb_map_offset,
1146         .dumb_destroy = vmw_dumb_destroy,
1147
1148         .fops = &vmwgfx_driver_fops,
1149         .name = VMWGFX_DRIVER_NAME,
1150         .desc = VMWGFX_DRIVER_DESC,
1151         .date = VMWGFX_DRIVER_DATE,
1152         .major = VMWGFX_DRIVER_MAJOR,
1153         .minor = VMWGFX_DRIVER_MINOR,
1154         .patchlevel = VMWGFX_DRIVER_PATCHLEVEL
1155 };
1156
1157 static struct pci_driver vmw_pci_driver = {
1158         .name = VMWGFX_DRIVER_NAME,
1159         .id_table = vmw_pci_id_list,
1160         .probe = vmw_probe,
1161         .remove = vmw_remove,
1162         .driver = {
1163                 .pm = &vmw_pm_ops
1164         }
1165 };
1166
1167 static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1168 {
1169         return drm_get_pci_dev(pdev, ent, &driver);
1170 }
1171
1172 static int __init vmwgfx_init(void)
1173 {
1174         int ret;
1175         ret = drm_pci_init(&driver, &vmw_pci_driver);
1176         if (ret)
1177                 DRM_ERROR("Failed initializing DRM.\n");
1178         return ret;
1179 }
1180
1181 static void __exit vmwgfx_exit(void)
1182 {
1183         drm_pci_exit(&driver, &vmw_pci_driver);
1184 }
1185
1186 module_init(vmwgfx_init);
1187 module_exit(vmwgfx_exit);
1188
1189 MODULE_AUTHOR("VMware Inc. and others");
1190 MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device");
1191 MODULE_LICENSE("GPL and additional rights");
1192 MODULE_VERSION(__stringify(VMWGFX_DRIVER_MAJOR) "."
1193                __stringify(VMWGFX_DRIVER_MINOR) "."
1194                __stringify(VMWGFX_DRIVER_PATCHLEVEL) "."
1195                "0");