drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

   1 /**************************************************************************
   2  *
   3  * Copyright © 2009-2016 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 #include <linux/console.h>
  29
  30 #include <drm/drmP.h>
  31 #include "vmwgfx_drv.h"
  32 #include "vmwgfx_binding.h"
  33 #include <drm/ttm/ttm_placement.h>
  34 #include <drm/ttm/ttm_bo_driver.h>
  35 #include <drm/ttm/ttm_object.h>
  36 #include <drm/ttm/ttm_module.h>
  37 #include <linux/dma_remapping.h>
  38
  39 #define VMWGFX_DRIVER_DESC "Linux drm driver for VMware graphics devices"
  40 #define VMWGFX_CHIP_SVGAII 0
  41 #define VMW_FB_RESERVATION 0
  42
  43 #define VMW_MIN_INITIAL_WIDTH 800
  44 #define VMW_MIN_INITIAL_HEIGHT 600
  45
  46 #ifndef VMWGFX_GIT_VERSION
  47 #define VMWGFX_GIT_VERSION "Unknown"
  48 #endif
  49
  50 #define VMWGFX_REPO "In Tree"
  51
  52
  53 /**
  54  * Fully encoded drm commands. Might move to vmw_drm.h
  55  */
  56
  57 #define DRM_IOCTL_VMW_GET_PARAM                                 \
  58         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GET_PARAM,          \
  59                  struct drm_vmw_getparam_arg)
  60 #define DRM_IOCTL_VMW_ALLOC_DMABUF                              \
  61         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_ALLOC_DMABUF,       \
  62                 union drm_vmw_alloc_dmabuf_arg)
  63 #define DRM_IOCTL_VMW_UNREF_DMABUF                              \
  64         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_DMABUF,        \
  65                 struct drm_vmw_unref_dmabuf_arg)
  66 #define DRM_IOCTL_VMW_CURSOR_BYPASS                             \
  67         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CURSOR_BYPASS,       \
  68                  struct drm_vmw_cursor_bypass_arg)
  69
  70 #define DRM_IOCTL_VMW_CONTROL_STREAM                            \
  71         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CONTROL_STREAM,      \
  72                  struct drm_vmw_control_stream_arg)
  73 #define DRM_IOCTL_VMW_CLAIM_STREAM                              \
  74         DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CLAIM_STREAM,        \
  75                  struct drm_vmw_stream_arg)
  76 #define DRM_IOCTL_VMW_UNREF_STREAM                              \
  77         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_STREAM,        \
  78                  struct drm_vmw_stream_arg)
  79
  80 #define DRM_IOCTL_VMW_CREATE_CONTEXT                            \
  81         DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CREATE_CONTEXT,      \
  82                 struct drm_vmw_context_arg)
  83 #define DRM_IOCTL_VMW_UNREF_CONTEXT                             \
  84         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_CONTEXT,       \
  85                 struct drm_vmw_context_arg)
  86 #define DRM_IOCTL_VMW_CREATE_SURFACE                            \
  87         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SURFACE,     \
  88                  union drm_vmw_surface_create_arg)
  89 #define DRM_IOCTL_VMW_UNREF_SURFACE                             \
  90         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SURFACE,       \
  91                  struct drm_vmw_surface_arg)
  92 #define DRM_IOCTL_VMW_REF_SURFACE                               \
  93         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_REF_SURFACE,        \
  94                  union drm_vmw_surface_reference_arg)
  95 #define DRM_IOCTL_VMW_EXECBUF                                   \
  96         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_EXECBUF,             \
  97                 struct drm_vmw_execbuf_arg)
  98 #define DRM_IOCTL_VMW_GET_3D_CAP                                \
  99         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_GET_3D_CAP,          \
 100                  struct drm_vmw_get_3d_cap_arg)
 101 #define DRM_IOCTL_VMW_FENCE_WAIT                                \
 102         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_WAIT,         \
 103                  struct drm_vmw_fence_wait_arg)
 104 #define DRM_IOCTL_VMW_FENCE_SIGNALED                            \
 105         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_SIGNALED,     \
 106                  struct drm_vmw_fence_signaled_arg)
 107 #define DRM_IOCTL_VMW_FENCE_UNREF                               \
 108         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_UNREF,         \
 109                  struct drm_vmw_fence_arg)
 110 #define DRM_IOCTL_VMW_FENCE_EVENT                               \
 111         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_EVENT,         \
 112                  struct drm_vmw_fence_event_arg)
 113 #define DRM_IOCTL_VMW_PRESENT                                   \
 114         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT,             \
 115                  struct drm_vmw_present_arg)
 116 #define DRM_IOCTL_VMW_PRESENT_READBACK                          \
 117         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT_READBACK,    \
 118                  struct drm_vmw_present_readback_arg)
 119 #define DRM_IOCTL_VMW_UPDATE_LAYOUT                             \
 120         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT,       \
 121                  struct drm_vmw_update_layout_arg)
 122 #define DRM_IOCTL_VMW_CREATE_SHADER                             \
 123         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SHADER,      \
 124                  struct drm_vmw_shader_create_arg)
 125 #define DRM_IOCTL_VMW_UNREF_SHADER                              \
 126         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SHADER,        \
 127                  struct drm_vmw_shader_arg)
 128 #define DRM_IOCTL_VMW_GB_SURFACE_CREATE                         \
 129         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_CREATE,  \
 130                  union drm_vmw_gb_surface_create_arg)
 131 #define DRM_IOCTL_VMW_GB_SURFACE_REF                            \
 132         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF,     \
 133                  union drm_vmw_gb_surface_reference_arg)
 134 #define DRM_IOCTL_VMW_SYNCCPU                                   \
 135         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_SYNCCPU,             \
 136                  struct drm_vmw_synccpu_arg)
 137 #define DRM_IOCTL_VMW_CREATE_EXTENDED_CONTEXT                   \
 138         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_EXTENDED_CONTEXT,    \
 139                 struct drm_vmw_context_arg)
 140
 141 /**
 142  * The core DRM version of this macro doesn't account for
 143  * DRM_COMMAND_BASE.
 144  */
 145
 146 #define VMW_IOCTL_DEF(ioctl, func, flags) \
 147   [DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = {DRM_IOCTL_##ioctl, flags, func}
 148
 149 /**
 150  * Ioctl definitions.
 151  */
 152
 153 static const struct drm_ioctl_desc vmw_ioctls[] = {
 154         VMW_IOCTL_DEF(VMW_GET_PARAM, vmw_getparam_ioctl,
 155                       DRM_AUTH | DRM_RENDER_ALLOW),
 156         VMW_IOCTL_DEF(VMW_ALLOC_DMABUF, vmw_dmabuf_alloc_ioctl,
 157                       DRM_AUTH | DRM_RENDER_ALLOW),
 158         VMW_IOCTL_DEF(VMW_UNREF_DMABUF, vmw_dmabuf_unref_ioctl,
 159                       DRM_RENDER_ALLOW),
 160         VMW_IOCTL_DEF(VMW_CURSOR_BYPASS,
 161                       vmw_kms_cursor_bypass_ioctl,
 162                       DRM_MASTER | DRM_CONTROL_ALLOW),
 163
 164         VMW_IOCTL_DEF(VMW_CONTROL_STREAM, vmw_overlay_ioctl,
 165                       DRM_MASTER | DRM_CONTROL_ALLOW),
 166         VMW_IOCTL_DEF(VMW_CLAIM_STREAM, vmw_stream_claim_ioctl,
 167                       DRM_MASTER | DRM_CONTROL_ALLOW),
 168         VMW_IOCTL_DEF(VMW_UNREF_STREAM, vmw_stream_unref_ioctl,
 169                       DRM_MASTER | DRM_CONTROL_ALLOW),
 170
 171         VMW_IOCTL_DEF(VMW_CREATE_CONTEXT, vmw_context_define_ioctl,
 172                       DRM_AUTH | DRM_RENDER_ALLOW),
 173         VMW_IOCTL_DEF(VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl,
 174                       DRM_RENDER_ALLOW),
 175         VMW_IOCTL_DEF(VMW_CREATE_SURFACE, vmw_surface_define_ioctl,
 176                       DRM_AUTH | DRM_RENDER_ALLOW),
 177         VMW_IOCTL_DEF(VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl,
 178                       DRM_RENDER_ALLOW),
 179         VMW_IOCTL_DEF(VMW_REF_SURFACE, vmw_surface_reference_ioctl,
 180                       DRM_AUTH | DRM_RENDER_ALLOW),
 181         VMW_IOCTL_DEF(VMW_EXECBUF, NULL, DRM_AUTH |
 182                       DRM_RENDER_ALLOW),
 183         VMW_IOCTL_DEF(VMW_FENCE_WAIT, vmw_fence_obj_wait_ioctl,
 184                       DRM_RENDER_ALLOW),
 185         VMW_IOCTL_DEF(VMW_FENCE_SIGNALED,
 186                       vmw_fence_obj_signaled_ioctl,
 187                       DRM_RENDER_ALLOW),
 188         VMW_IOCTL_DEF(VMW_FENCE_UNREF, vmw_fence_obj_unref_ioctl,
 189                       DRM_RENDER_ALLOW),
 190         VMW_IOCTL_DEF(VMW_FENCE_EVENT, vmw_fence_event_ioctl,
 191                       DRM_AUTH | DRM_RENDER_ALLOW),
 192         VMW_IOCTL_DEF(VMW_GET_3D_CAP, vmw_get_cap_3d_ioctl,
 193                       DRM_AUTH | DRM_RENDER_ALLOW),
 194
 195         /* these allow direct access to the framebuffers mark as master only */
 196         VMW_IOCTL_DEF(VMW_PRESENT, vmw_present_ioctl,
 197                       DRM_MASTER | DRM_AUTH),
 198         VMW_IOCTL_DEF(VMW_PRESENT_READBACK,
 199                       vmw_present_readback_ioctl,
 200                       DRM_MASTER | DRM_AUTH),
 201         /*
 202          * The permissions of the below ioctl are overridden in
 203          * vmw_generic_ioctl(). We require either
 204          * DRM_MASTER or capable(CAP_SYS_ADMIN).
 205          */
 206         VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT,
 207                       vmw_kms_update_layout_ioctl,
 208                       DRM_RENDER_ALLOW),
 209         VMW_IOCTL_DEF(VMW_CREATE_SHADER,
 210                       vmw_shader_define_ioctl,
 211                       DRM_AUTH | DRM_RENDER_ALLOW),
 212         VMW_IOCTL_DEF(VMW_UNREF_SHADER,
 213                       vmw_shader_destroy_ioctl,
 214                       DRM_RENDER_ALLOW),
 215         VMW_IOCTL_DEF(VMW_GB_SURFACE_CREATE,
 216                       vmw_gb_surface_define_ioctl,
 217                       DRM_AUTH | DRM_RENDER_ALLOW),
 218         VMW_IOCTL_DEF(VMW_GB_SURFACE_REF,
 219                       vmw_gb_surface_reference_ioctl,
 220                       DRM_AUTH | DRM_RENDER_ALLOW),
 221         VMW_IOCTL_DEF(VMW_SYNCCPU,
 222                       vmw_user_dmabuf_synccpu_ioctl,
 223                       DRM_RENDER_ALLOW),
 224         VMW_IOCTL_DEF(VMW_CREATE_EXTENDED_CONTEXT,
 225                       vmw_extended_context_define_ioctl,
 226                       DRM_AUTH | DRM_RENDER_ALLOW),
 227 };
 228
 229 static const struct pci_device_id vmw_pci_id_list[] = {
 230         {0x15ad, 0x0405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VMWGFX_CHIP_SVGAII},
 231         {0, 0, 0}
 232 };
 233 MODULE_DEVICE_TABLE(pci, vmw_pci_id_list);
 234
 235 static int enable_fbdev = IS_ENABLED(CONFIG_DRM_VMWGFX_FBCON);
 236 static int vmw_force_iommu;
 237 static int vmw_restrict_iommu;
 238 static int vmw_force_coherent;
 239 static int vmw_restrict_dma_mask;
 240 static int vmw_assume_16bpp;
 241
 242 static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
 243 static void vmw_master_init(struct vmw_master *);
 244 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
 245                               void *ptr);
 246
 247 MODULE_PARM_DESC(enable_fbdev, "Enable vmwgfx fbdev");
 248 module_param_named(enable_fbdev, enable_fbdev, int, 0600);
 249 MODULE_PARM_DESC(force_dma_api, "Force using the DMA API for TTM pages");
 250 module_param_named(force_dma_api, vmw_force_iommu, int, 0600);
 251 MODULE_PARM_DESC(restrict_iommu, "Try to limit IOMMU usage for TTM pages");
 252 module_param_named(restrict_iommu, vmw_restrict_iommu, int, 0600);
 253 MODULE_PARM_DESC(force_coherent, "Force coherent TTM pages");
 254 module_param_named(force_coherent, vmw_force_coherent, int, 0600);
 255 MODULE_PARM_DESC(restrict_dma_mask, "Restrict DMA mask to 44 bits with IOMMU");
 256 module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, 0600);
 257 MODULE_PARM_DESC(assume_16bpp, "Assume 16-bpp when filtering modes");
 258 module_param_named(assume_16bpp, vmw_assume_16bpp, int, 0600);
 259
 260
 261 static void vmw_print_capabilities(uint32_t capabilities)
 262 {
 263         DRM_INFO("Capabilities:\n");
 264         if (capabilities & SVGA_CAP_RECT_COPY)
 265                 DRM_INFO("  Rect copy.\n");
 266         if (capabilities & SVGA_CAP_CURSOR)
 267                 DRM_INFO("  Cursor.\n");
 268         if (capabilities & SVGA_CAP_CURSOR_BYPASS)
 269                 DRM_INFO("  Cursor bypass.\n");
 270         if (capabilities & SVGA_CAP_CURSOR_BYPASS_2)
 271                 DRM_INFO("  Cursor bypass 2.\n");
 272         if (capabilities & SVGA_CAP_8BIT_EMULATION)
 273                 DRM_INFO("  8bit emulation.\n");
 274         if (capabilities & SVGA_CAP_ALPHA_CURSOR)
 275                 DRM_INFO("  Alpha cursor.\n");
 276         if (capabilities & SVGA_CAP_3D)
 277                 DRM_INFO("  3D.\n");
 278         if (capabilities & SVGA_CAP_EXTENDED_FIFO)
 279                 DRM_INFO("  Extended Fifo.\n");
 280         if (capabilities & SVGA_CAP_MULTIMON)
 281                 DRM_INFO("  Multimon.\n");
 282         if (capabilities & SVGA_CAP_PITCHLOCK)
 283                 DRM_INFO("  Pitchlock.\n");
 284         if (capabilities & SVGA_CAP_IRQMASK)
 285                 DRM_INFO("  Irq mask.\n");
 286         if (capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)
 287                 DRM_INFO("  Display Topology.\n");
 288         if (capabilities & SVGA_CAP_GMR)
 289                 DRM_INFO("  GMR.\n");
 290         if (capabilities & SVGA_CAP_TRACES)
 291                 DRM_INFO("  Traces.\n");
 292         if (capabilities & SVGA_CAP_GMR2)
 293                 DRM_INFO("  GMR2.\n");
 294         if (capabilities & SVGA_CAP_SCREEN_OBJECT_2)
 295                 DRM_INFO("  Screen Object 2.\n");
 296         if (capabilities & SVGA_CAP_COMMAND_BUFFERS)
 297                 DRM_INFO("  Command Buffers.\n");
 298         if (capabilities & SVGA_CAP_CMD_BUFFERS_2)
 299                 DRM_INFO("  Command Buffers 2.\n");
 300         if (capabilities & SVGA_CAP_GBOBJECTS)
 301                 DRM_INFO("  Guest Backed Resources.\n");
 302         if (capabilities & SVGA_CAP_DX)
 303                 DRM_INFO("  DX Features.\n");
 304         if (capabilities & SVGA_CAP_HP_CMD_QUEUE)
 305                 DRM_INFO("  HP Command Queue.\n");
 306 }
 307
 308 /**
 309  * vmw_dummy_query_bo_create - create a bo to hold a dummy query result
 310  *
 311  * @dev_priv: A device private structure.
 312  *
 313  * This function creates a small buffer object that holds the query
 314  * result for dummy queries emitted as query barriers.
 315  * The function will then map the first page and initialize a pending
 316  * occlusion query result structure, Finally it will unmap the buffer.
 317  * No interruptible waits are done within this function.
 318  *
 319  * Returns an error if bo creation or initialization fails.
 320  */
 321 static int vmw_dummy_query_bo_create(struct vmw_private *dev_priv)
 322 {
 323         int ret;
 324         struct vmw_dma_buffer *vbo;
 325         struct ttm_bo_kmap_obj map;
 326         volatile SVGA3dQueryResult *result;
 327         bool dummy;
 328
 329         /*
 330          * Create the vbo as pinned, so that a tryreserve will
 331          * immediately succeed. This is because we're the only
 332          * user of the bo currently.
 333          */
 334         vbo = kzalloc(sizeof(*vbo), GFP_KERNEL);
 335         if (!vbo)
 336                 return -ENOMEM;
 337
 338         ret = vmw_dmabuf_init(dev_priv, vbo, PAGE_SIZE,
 339                               &vmw_sys_ne_placement, false,
 340                               &vmw_dmabuf_bo_free);
 341         if (unlikely(ret != 0))
 342                 return ret;
 343
 344         ret = ttm_bo_reserve(&vbo->base, false, true, NULL);
 345         BUG_ON(ret != 0);
 346         vmw_bo_pin_reserved(vbo, true);
 347
 348         ret = ttm_bo_kmap(&vbo->base, 0, 1, &map);
 349         if (likely(ret == 0)) {
 350                 result = ttm_kmap_obj_virtual(&map, &dummy);
 351                 result->totalSize = sizeof(*result);
 352                 result->state = SVGA3D_QUERYSTATE_PENDING;
 353                 result->result32 = 0xff;
 354                 ttm_bo_kunmap(&map);
 355         }
 356         vmw_bo_pin_reserved(vbo, false);
 357         ttm_bo_unreserve(&vbo->base);
 358
 359         if (unlikely(ret != 0)) {
 360                 DRM_ERROR("Dummy query buffer map failed.\n");
 361                 vmw_dmabuf_unreference(&vbo);
 362         } else
 363                 dev_priv->dummy_query_bo = vbo;
 364
 365         return ret;
 366 }
 367
 368 /**
 369  * vmw_request_device_late - Perform late device setup
 370  *
 371  * @dev_priv: Pointer to device private.
 372  *
 373  * This function performs setup of otables and enables large command
 374  * buffer submission. These tasks are split out to a separate function
 375  * because it reverts vmw_release_device_early and is intended to be used
 376  * by an error path in the hibernation code.
 377  */
 378 static int vmw_request_device_late(struct vmw_private *dev_priv)
 379 {
 380         int ret;
 381
 382         if (dev_priv->has_mob) {
 383                 ret = vmw_otables_setup(dev_priv);
 384                 if (unlikely(ret != 0)) {
 385                         DRM_ERROR("Unable to initialize "
 386                                   "guest Memory OBjects.\n");
 387                         return ret;
 388                 }
 389         }
 390
 391         if (dev_priv->cman) {
 392                 ret = vmw_cmdbuf_set_pool_size(dev_priv->cman,
 393                                                256*4096, 2*4096);
 394                 if (ret) {
 395                         struct vmw_cmdbuf_man *man = dev_priv->cman;
 396
 397                         dev_priv->cman = NULL;
 398                         vmw_cmdbuf_man_destroy(man);
 399                 }
 400         }
 401
 402         return 0;
 403 }
 404
 405 static int vmw_request_device(struct vmw_private *dev_priv)
 406 {
 407         int ret;
 408
 409         ret = vmw_fifo_init(dev_priv, &dev_priv->fifo);
 410         if (unlikely(ret != 0)) {
 411                 DRM_ERROR("Unable to initialize FIFO.\n");
 412                 return ret;
 413         }
 414         vmw_fence_fifo_up(dev_priv->fman);
 415         dev_priv->cman = vmw_cmdbuf_man_create(dev_priv);
 416         if (IS_ERR(dev_priv->cman)) {
 417                 dev_priv->cman = NULL;
 418                 dev_priv->has_dx = false;
 419         }
 420
 421         ret = vmw_request_device_late(dev_priv);
 422         if (ret)
 423                 goto out_no_mob;
 424
 425         ret = vmw_dummy_query_bo_create(dev_priv);
 426         if (unlikely(ret != 0))
 427                 goto out_no_query_bo;
 428
 429         return 0;
 430
 431 out_no_query_bo:
 432         if (dev_priv->cman)
 433                 vmw_cmdbuf_remove_pool(dev_priv->cman);
 434         if (dev_priv->has_mob) {
 435                 (void) ttm_bo_evict_mm(&dev_priv->bdev, VMW_PL_MOB);
 436                 vmw_otables_takedown(dev_priv);
 437         }
 438         if (dev_priv->cman)
 439                 vmw_cmdbuf_man_destroy(dev_priv->cman);
 440 out_no_mob:
 441         vmw_fence_fifo_down(dev_priv->fman);
 442         vmw_fifo_release(dev_priv, &dev_priv->fifo);
 443         return ret;
 444 }
 445
 446 /**
 447  * vmw_release_device_early - Early part of fifo takedown.
 448  *
 449  * @dev_priv: Pointer to device private struct.
 450  *
 451  * This is the first part of command submission takedown, to be called before
 452  * buffer management is taken down.
 453  */
 454 static void vmw_release_device_early(struct vmw_private *dev_priv)
 455 {
 456         /*
 457          * Previous destructions should've released
 458          * the pinned bo.
 459          */
 460
 461         BUG_ON(dev_priv->pinned_bo != NULL);
 462
 463         vmw_dmabuf_unreference(&dev_priv->dummy_query_bo);
 464         if (dev_priv->cman)
 465                 vmw_cmdbuf_remove_pool(dev_priv->cman);
 466
 467         if (dev_priv->has_mob) {
 468                 ttm_bo_evict_mm(&dev_priv->bdev, VMW_PL_MOB);
 469                 vmw_otables_takedown(dev_priv);
 470         }
 471 }
 472
 473 /**
 474  * vmw_release_device_late - Late part of fifo takedown.
 475  *
 476  * @dev_priv: Pointer to device private struct.
 477  *
 478  * This is the last part of the command submission takedown, to be called when
 479  * command submission is no longer needed. It may wait on pending fences.
 480  */
 481 static void vmw_release_device_late(struct vmw_private *dev_priv)
 482 {
 483         vmw_fence_fifo_down(dev_priv->fman);
 484         if (dev_priv->cman)
 485                 vmw_cmdbuf_man_destroy(dev_priv->cman);
 486
 487         vmw_fifo_release(dev_priv, &dev_priv->fifo);
 488 }
 489
 490 /**
 491  * Sets the initial_[width|height] fields on the given vmw_private.
 492  *
 493  * It does so by reading SVGA_REG_[WIDTH|HEIGHT] regs and then
 494  * clamping the value to fb_max_[width|height] fields and the
 495  * VMW_MIN_INITIAL_[WIDTH|HEIGHT].
 496  * If the values appear to be invalid, set them to
 497  * VMW_MIN_INITIAL_[WIDTH|HEIGHT].
 498  */
 499 static void vmw_get_initial_size(struct vmw_private *dev_priv)
 500 {
 501         uint32_t width;
 502         uint32_t height;
 503
 504         width = vmw_read(dev_priv, SVGA_REG_WIDTH);
 505         height = vmw_read(dev_priv, SVGA_REG_HEIGHT);
 506
 507         width = max_t(uint32_t, width, VMW_MIN_INITIAL_WIDTH);
 508         height = max_t(uint32_t, height, VMW_MIN_INITIAL_HEIGHT);
 509
 510         if (width > dev_priv->fb_max_width ||
 511             height > dev_priv->fb_max_height) {
 512
 513                 /*
 514                  * This is a host error and shouldn't occur.
 515                  */
 516
 517                 width = VMW_MIN_INITIAL_WIDTH;
 518                 height = VMW_MIN_INITIAL_HEIGHT;
 519         }
 520
 521         dev_priv->initial_width = width;
 522         dev_priv->initial_height = height;
 523 }
 524
 525 /**
 526  * vmw_dma_select_mode - Determine how DMA mappings should be set up for this
 527  * system.
 528  *
 529  * @dev_priv: Pointer to a struct vmw_private
 530  *
 531  * This functions tries to determine the IOMMU setup and what actions
 532  * need to be taken by the driver to make system pages visible to the
 533  * device.
 534  * If this function decides that DMA is not possible, it returns -EINVAL.
 535  * The driver may then try to disable features of the device that require
 536  * DMA.
 537  */
 538 static int vmw_dma_select_mode(struct vmw_private *dev_priv)
 539 {
 540         static const char *names[vmw_dma_map_max] = {
 541                 [vmw_dma_phys] = "Using physical TTM page addresses.",
 542                 [vmw_dma_alloc_coherent] = "Using coherent TTM pages.",
 543                 [vmw_dma_map_populate] = "Keeping DMA mappings.",
 544                 [vmw_dma_map_bind] = "Giving up DMA mappings early."};
 545 #ifdef CONFIG_X86
 546         const struct dma_map_ops *dma_ops = get_dma_ops(dev_priv->dev->dev);
 547
 548 #ifdef CONFIG_INTEL_IOMMU
 549         if (intel_iommu_enabled) {
 550                 dev_priv->map_mode = vmw_dma_map_populate;
 551                 goto out_fixup;
 552         }
 553 #endif
 554
 555         if (!(vmw_force_iommu || vmw_force_coherent)) {
 556                 dev_priv->map_mode = vmw_dma_phys;
 557                 DRM_INFO("DMA map mode: %s\n", names[dev_priv->map_mode]);
 558                 return 0;
 559         }
 560
 561         dev_priv->map_mode = vmw_dma_map_populate;
 562
 563         if (dma_ops->sync_single_for_cpu)
 564                 dev_priv->map_mode = vmw_dma_alloc_coherent;
 565 #ifdef CONFIG_SWIOTLB
 566         if (swiotlb_nr_tbl() == 0)
 567                 dev_priv->map_mode = vmw_dma_map_populate;
 568 #endif
 569
 570 #ifdef CONFIG_INTEL_IOMMU
 571 out_fixup:
 572 #endif
 573         if (dev_priv->map_mode == vmw_dma_map_populate &&
 574             vmw_restrict_iommu)
 575                 dev_priv->map_mode = vmw_dma_map_bind;
 576
 577         if (vmw_force_coherent)
 578                 dev_priv->map_mode = vmw_dma_alloc_coherent;
 579
 580 #if !defined(CONFIG_SWIOTLB) && !defined(CONFIG_INTEL_IOMMU)
 581         /*
 582          * No coherent page pool
 583          */
 584         if (dev_priv->map_mode == vmw_dma_alloc_coherent)
 585                 return -EINVAL;
 586 #endif
 587
 588 #else /* CONFIG_X86 */
 589         dev_priv->map_mode = vmw_dma_map_populate;
 590 #endif /* CONFIG_X86 */
 591
 592         DRM_INFO("DMA map mode: %s\n", names[dev_priv->map_mode]);
 593
 594         return 0;
 595 }
 596
 597 /**
 598  * vmw_dma_masks - set required page- and dma masks
 599  *
 600  * @dev: Pointer to struct drm-device
 601  *
 602  * With 32-bit we can only handle 32 bit PFNs. Optionally set that
 603  * restriction also for 64-bit systems.
 604  */
 605 #ifdef CONFIG_INTEL_IOMMU
 606 static int vmw_dma_masks(struct vmw_private *dev_priv)
 607 {
 608         struct drm_device *dev = dev_priv->dev;
 609
 610         if (intel_iommu_enabled &&
 611             (sizeof(unsigned long) == 4 || vmw_restrict_dma_mask)) {
 612                 DRM_INFO("Restricting DMA addresses to 44 bits.\n");
 613                 return dma_set_mask(dev->dev, DMA_BIT_MASK(44));
 614         }
 615         return 0;
 616 }
 617 #else
 618 static int vmw_dma_masks(struct vmw_private *dev_priv)
 619 {
 620         return 0;
 621 }
 622 #endif
 623
 624 static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 625 {
 626         struct vmw_private *dev_priv;
 627         int ret;
 628         uint32_t svga_id;
 629         enum vmw_res_type i;
 630         bool refuse_dma = false;
 631         char host_log[100] = {0};
 632
 633         dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
 634         if (unlikely(!dev_priv)) {
 635                 DRM_ERROR("Failed allocating a device private struct.\n");
 636                 return -ENOMEM;
 637         }
 638
 639         pci_set_master(dev->pdev);
 640
 641         dev_priv->dev = dev;
 642         dev_priv->vmw_chipset = chipset;
 643         dev_priv->last_read_seqno = (uint32_t) -100;
 644         mutex_init(&dev_priv->cmdbuf_mutex);
 645         mutex_init(&dev_priv->release_mutex);
 646         mutex_init(&dev_priv->binding_mutex);
 647         mutex_init(&dev_priv->global_kms_state_mutex);
 648         rwlock_init(&dev_priv->resource_lock);
 649         ttm_lock_init(&dev_priv->reservation_sem);
 650         spin_lock_init(&dev_priv->hw_lock);
 651         spin_lock_init(&dev_priv->waiter_lock);
 652         spin_lock_init(&dev_priv->cap_lock);
 653         spin_lock_init(&dev_priv->svga_lock);
 654         spin_lock_init(&dev_priv->cursor_lock);
 655
 656         for (i = vmw_res_context; i < vmw_res_max; ++i) {
 657                 idr_init(&dev_priv->res_idr[i]);
 658                 INIT_LIST_HEAD(&dev_priv->res_lru[i]);
 659         }
 660
 661         mutex_init(&dev_priv->init_mutex);
 662         init_waitqueue_head(&dev_priv->fence_queue);
 663         init_waitqueue_head(&dev_priv->fifo_queue);
 664         dev_priv->fence_queue_waiters = 0;
 665         dev_priv->fifo_queue_waiters = 0;
 666
 667         dev_priv->used_memory_size = 0;
 668
 669         dev_priv->io_start = pci_resource_start(dev->pdev, 0);
 670         dev_priv->vram_start = pci_resource_start(dev->pdev, 1);
 671         dev_priv->mmio_start = pci_resource_start(dev->pdev, 2);
 672
 673         dev_priv->assume_16bpp = !!vmw_assume_16bpp;
 674
 675         dev_priv->enable_fb = enable_fbdev;
 676
 677         vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
 678         svga_id = vmw_read(dev_priv, SVGA_REG_ID);
 679         if (svga_id != SVGA_ID_2) {
 680                 ret = -ENOSYS;
 681                 DRM_ERROR("Unsupported SVGA ID 0x%x\n", svga_id);
 682                 goto out_err0;
 683         }
 684
 685         dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES);
 686         ret = vmw_dma_select_mode(dev_priv);
 687         if (unlikely(ret != 0)) {
 688                 DRM_INFO("Restricting capabilities due to IOMMU setup.\n");
 689                 refuse_dma = true;
 690         }
 691
 692         dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE);
 693         dev_priv->mmio_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE);
 694         dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH);
 695         dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT);
 696
 697         vmw_get_initial_size(dev_priv);
 698
 699         if (dev_priv->capabilities & SVGA_CAP_GMR2) {
 700                 dev_priv->max_gmr_ids =
 701                         vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS);
 702                 dev_priv->max_gmr_pages =
 703                         vmw_read(dev_priv, SVGA_REG_GMRS_MAX_PAGES);
 704                 dev_priv->memory_size =
 705                         vmw_read(dev_priv, SVGA_REG_MEMORY_SIZE);
 706                 dev_priv->memory_size -= dev_priv->vram_size;
 707         } else {
 708                 /*
 709                  * An arbitrary limit of 512MiB on surface
 710                  * memory. But all HWV8 hardware supports GMR2.
 711                  */
 712                 dev_priv->memory_size = 512*1024*1024;
 713         }
 714         dev_priv->max_mob_pages = 0;
 715         dev_priv->max_mob_size = 0;
 716         if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) {
 717                 uint64_t mem_size =
 718                         vmw_read(dev_priv,
 719                                  SVGA_REG_SUGGESTED_GBOBJECT_MEM_SIZE_KB);
 720
 721                 /*
 722                  * Workaround for low memory 2D VMs to compensate for the
 723                  * allocation taken by fbdev
 724                  */
 725                 if (!(dev_priv->capabilities & SVGA_CAP_3D))
 726                         mem_size *= 3;
 727
 728                 dev_priv->max_mob_pages = mem_size * 1024 / PAGE_SIZE;
 729                 dev_priv->prim_bb_mem =
 730                         vmw_read(dev_priv,
 731                                  SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM);
 732                 dev_priv->max_mob_size =
 733                         vmw_read(dev_priv, SVGA_REG_MOB_MAX_SIZE);
 734                 dev_priv->stdu_max_width =
 735                         vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_WIDTH);
 736                 dev_priv->stdu_max_height =
 737                         vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_HEIGHT);
 738
 739                 vmw_write(dev_priv, SVGA_REG_DEV_CAP,
 740                           SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH);
 741                 dev_priv->texture_max_width = vmw_read(dev_priv,
 742                                                        SVGA_REG_DEV_CAP);
 743                 vmw_write(dev_priv, SVGA_REG_DEV_CAP,
 744                           SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT);
 745                 dev_priv->texture_max_height = vmw_read(dev_priv,
 746                                                         SVGA_REG_DEV_CAP);
 747         } else {
 748                 dev_priv->texture_max_width = 8192;
 749                 dev_priv->texture_max_height = 8192;
 750                 dev_priv->prim_bb_mem = dev_priv->vram_size;
 751         }
 752
 753         vmw_print_capabilities(dev_priv->capabilities);
 754
 755         ret = vmw_dma_masks(dev_priv);
 756         if (unlikely(ret != 0))
 757                 goto out_err0;
 758
 759         if (dev_priv->capabilities & SVGA_CAP_GMR2) {
 760                 DRM_INFO("Max GMR ids is %u\n",
 761                          (unsigned)dev_priv->max_gmr_ids);
 762                 DRM_INFO("Max number of GMR pages is %u\n",
 763                          (unsigned)dev_priv->max_gmr_pages);
 764                 DRM_INFO("Max dedicated hypervisor surface memory is %u kiB\n",
 765                          (unsigned)dev_priv->memory_size / 1024);
 766         }
 767         DRM_INFO("Maximum display memory size is %u kiB\n",
 768                  dev_priv->prim_bb_mem / 1024);
 769         DRM_INFO("VRAM at 0x%08x size is %u kiB\n",
 770                  dev_priv->vram_start, dev_priv->vram_size / 1024);
 771         DRM_INFO("MMIO at 0x%08x size is %u kiB\n",
 772                  dev_priv->mmio_start, dev_priv->mmio_size / 1024);
 773
 774         ret = vmw_ttm_global_init(dev_priv);
 775         if (unlikely(ret != 0))
 776                 goto out_err0;
 777
 778
 779         vmw_master_init(&dev_priv->fbdev_master);
 780         ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
 781         dev_priv->active_master = &dev_priv->fbdev_master;
 782
 783         dev_priv->mmio_virt = memremap(dev_priv->mmio_start,
 784                                        dev_priv->mmio_size, MEMREMAP_WB);
 785
 786         if (unlikely(dev_priv->mmio_virt == NULL)) {
 787                 ret = -ENOMEM;
 788                 DRM_ERROR("Failed mapping MMIO.\n");
 789                 goto out_err3;
 790         }
 791
 792         /* Need mmio memory to check for fifo pitchlock cap. */
 793         if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
 794             !(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) &&
 795             !vmw_fifo_have_pitchlock(dev_priv)) {
 796                 ret = -ENOSYS;
 797                 DRM_ERROR("Hardware has no pitchlock\n");
 798                 goto out_err4;
 799         }
 800
 801         dev_priv->tdev = ttm_object_device_init
 802                 (dev_priv->mem_global_ref.object, 12, &vmw_prime_dmabuf_ops);
 803
 804         if (unlikely(dev_priv->tdev == NULL)) {
 805                 DRM_ERROR("Unable to initialize TTM object management.\n");
 806                 ret = -ENOMEM;
 807                 goto out_err4;
 808         }
 809
 810         dev->dev_private = dev_priv;
 811
 812         ret = pci_request_regions(dev->pdev, "vmwgfx probe");
 813         dev_priv->stealth = (ret != 0);
 814         if (dev_priv->stealth) {
 815                 /**
 816                  * Request at least the mmio PCI resource.
 817                  */
 818
 819                 DRM_INFO("It appears like vesafb is loaded. "
 820                          "Ignore above error if any.\n");
 821                 ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe");
 822                 if (unlikely(ret != 0)) {
 823                         DRM_ERROR("Failed reserving the SVGA MMIO resource.\n");
 824                         goto out_no_device;
 825                 }
 826         }
 827
 828         if (dev_priv->capabilities & SVGA_CAP_IRQMASK) {
 829                 ret = vmw_irq_install(dev, dev->pdev->irq);
 830                 if (ret != 0) {
 831                         DRM_ERROR("Failed installing irq: %d\n", ret);
 832                         goto out_no_irq;
 833                 }
 834         }
 835
 836         dev_priv->fman = vmw_fence_manager_init(dev_priv);
 837         if (unlikely(dev_priv->fman == NULL)) {
 838                 ret = -ENOMEM;
 839                 goto out_no_fman;
 840         }
 841
 842         ret = ttm_bo_device_init(&dev_priv->bdev,
 843                                  dev_priv->bo_global_ref.ref.object,
 844                                  &vmw_bo_driver,
 845                                  dev->anon_inode->i_mapping,
 846                                  VMWGFX_FILE_PAGE_OFFSET,
 847                                  false);
 848         if (unlikely(ret != 0)) {
 849                 DRM_ERROR("Failed initializing TTM buffer object driver.\n");
 850                 goto out_no_bdev;
 851         }
 852
 853         /*
 854          * Enable VRAM, but initially don't use it until SVGA is enabled and
 855          * unhidden.
 856          */
 857         ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM,
 858                              (dev_priv->vram_size >> PAGE_SHIFT));
 859         if (unlikely(ret != 0)) {
 860                 DRM_ERROR("Failed initializing memory manager for VRAM.\n");
 861                 goto out_no_vram;
 862         }
 863         dev_priv->bdev.man[TTM_PL_VRAM].use_type = false;
 864
 865         dev_priv->has_gmr = true;
 866         if (((dev_priv->capabilities & (SVGA_CAP_GMR | SVGA_CAP_GMR2)) == 0) ||
 867             refuse_dma || ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_GMR,
 868                                          VMW_PL_GMR) != 0) {
 869                 DRM_INFO("No GMR memory available. "
 870                          "Graphics memory resources are very limited.\n");
 871                 dev_priv->has_gmr = false;
 872         }
 873
 874         if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) {
 875                 dev_priv->has_mob = true;
 876                 if (ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_MOB,
 877                                    VMW_PL_MOB) != 0) {
 878                         DRM_INFO("No MOB memory available. "
 879                                  "3D will be disabled.\n");
 880                         dev_priv->has_mob = false;
 881                 }
 882         }
 883
 884         if (dev_priv->has_mob) {
 885                 spin_lock(&dev_priv->cap_lock);
 886                 vmw_write(dev_priv, SVGA_REG_DEV_CAP, SVGA3D_DEVCAP_DX);
 887                 dev_priv->has_dx = !!vmw_read(dev_priv, SVGA_REG_DEV_CAP);
 888                 spin_unlock(&dev_priv->cap_lock);
 889         }
 890
 891
 892         ret = vmw_kms_init(dev_priv);
 893         if (unlikely(ret != 0))
 894                 goto out_no_kms;
 895         vmw_overlay_init(dev_priv);
 896
 897         ret = vmw_request_device(dev_priv);
 898         if (ret)
 899                 goto out_no_fifo;
 900
 901         DRM_INFO("DX: %s\n", dev_priv->has_dx ? "yes." : "no.");
 902         DRM_INFO("Atomic: %s\n",
 903                  (dev->driver->driver_features & DRIVER_ATOMIC) ? "yes" : "no");
 904
 905         snprintf(host_log, sizeof(host_log), "vmwgfx: %s-%s",
 906                 VMWGFX_REPO, VMWGFX_GIT_VERSION);
 907         vmw_host_log(host_log);
 908
 909         memset(host_log, 0, sizeof(host_log));
 910         snprintf(host_log, sizeof(host_log), "vmwgfx: Module Version: %d.%d.%d",
 911                 VMWGFX_DRIVER_MAJOR, VMWGFX_DRIVER_MINOR,
 912                 VMWGFX_DRIVER_PATCHLEVEL);
 913         vmw_host_log(host_log);
 914
 915         if (dev_priv->enable_fb) {
 916                 vmw_fifo_resource_inc(dev_priv);
 917                 vmw_svga_enable(dev_priv);
 918                 vmw_fb_init(dev_priv);
 919         }
 920
 921         dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
 922         register_pm_notifier(&dev_priv->pm_nb);
 923
 924         return 0;
 925
 926 out_no_fifo:
 927         vmw_overlay_close(dev_priv);
 928         vmw_kms_close(dev_priv);
 929 out_no_kms:
 930         if (dev_priv->has_mob)
 931                 (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB);
 932         if (dev_priv->has_gmr)
 933                 (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
 934         (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
 935 out_no_vram:
 936         (void)ttm_bo_device_release(&dev_priv->bdev);
 937 out_no_bdev:
 938         vmw_fence_manager_takedown(dev_priv->fman);
 939 out_no_fman:
 940         if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
 941                 vmw_irq_uninstall(dev_priv->dev);
 942 out_no_irq:
 943         if (dev_priv->stealth)
 944                 pci_release_region(dev->pdev, 2);
 945         else
 946                 pci_release_regions(dev->pdev);
 947 out_no_device:
 948         ttm_object_device_release(&dev_priv->tdev);
 949 out_err4:
 950         memunmap(dev_priv->mmio_virt);
 951 out_err3:
 952         vmw_ttm_global_release(dev_priv);
 953 out_err0:
 954         for (i = vmw_res_context; i < vmw_res_max; ++i)
 955                 idr_destroy(&dev_priv->res_idr[i]);
 956
 957         if (dev_priv->ctx.staged_bindings)
 958                 vmw_binding_state_free(dev_priv->ctx.staged_bindings);
 959         kfree(dev_priv);
 960         return ret;
 961 }
 962
 963 static void vmw_driver_unload(struct drm_device *dev)
 964 {
 965         struct vmw_private *dev_priv = vmw_priv(dev);
 966         enum vmw_res_type i;
 967
 968         unregister_pm_notifier(&dev_priv->pm_nb);
 969
 970         if (dev_priv->ctx.res_ht_initialized)
 971                 drm_ht_remove(&dev_priv->ctx.res_ht);
 972         vfree(dev_priv->ctx.cmd_bounce);
 973         if (dev_priv->enable_fb) {
 974                 vmw_fb_off(dev_priv);
 975                 vmw_fb_close(dev_priv);
 976                 vmw_fifo_resource_dec(dev_priv);
 977                 vmw_svga_disable(dev_priv);
 978         }
 979
 980         vmw_kms_close(dev_priv);
 981         vmw_overlay_close(dev_priv);
 982
 983         if (dev_priv->has_gmr)
 984                 (void)ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
 985         (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
 986
 987         vmw_release_device_early(dev_priv);
 988         if (dev_priv->has_mob)
 989                 (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB);
 990         (void) ttm_bo_device_release(&dev_priv->bdev);
 991         vmw_release_device_late(dev_priv);
 992         vmw_fence_manager_takedown(dev_priv->fman);
 993         if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
 994                 vmw_irq_uninstall(dev_priv->dev);
 995         if (dev_priv->stealth)
 996                 pci_release_region(dev->pdev, 2);
 997         else
 998                 pci_release_regions(dev->pdev);
 999
1000         ttm_object_device_release(&dev_priv->tdev);
1001         memunmap(dev_priv->mmio_virt);
1002         if (dev_priv->ctx.staged_bindings)
1003                 vmw_binding_state_free(dev_priv->ctx.staged_bindings);
1004         vmw_ttm_global_release(dev_priv);
1005
1006         for (i = vmw_res_context; i < vmw_res_max; ++i)
1007                 idr_destroy(&dev_priv->res_idr[i]);
1008
1009         kfree(dev_priv);
1010 }
1011
1012 static void vmw_postclose(struct drm_device *dev,
1013                          struct drm_file *file_priv)
1014 {
1015         struct vmw_fpriv *vmw_fp;
1016
1017         vmw_fp = vmw_fpriv(file_priv);
1018
1019         if (vmw_fp->locked_master) {
1020                 struct vmw_master *vmaster =
1021                         vmw_master(vmw_fp->locked_master);
1022
1023                 ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
1024                 ttm_vt_unlock(&vmaster->lock);
1025                 drm_master_put(&vmw_fp->locked_master);
1026         }
1027
1028         ttm_object_file_release(&vmw_fp->tfile);
1029         kfree(vmw_fp);
1030 }
1031
1032 static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
1033 {
1034         struct vmw_private *dev_priv = vmw_priv(dev);
1035         struct vmw_fpriv *vmw_fp;
1036         int ret = -ENOMEM;
1037
1038         vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL);
1039         if (unlikely(!vmw_fp))
1040                 return ret;
1041
1042         vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev, 10);
1043         if (unlikely(vmw_fp->tfile == NULL))
1044                 goto out_no_tfile;
1045
1046         file_priv->driver_priv = vmw_fp;
1047
1048         return 0;
1049
1050 out_no_tfile:
1051         kfree(vmw_fp);
1052         return ret;
1053 }
1054
1055 static struct vmw_master *vmw_master_check(struct drm_device *dev,
1056                                            struct drm_file *file_priv,
1057                                            unsigned int flags)
1058 {
1059         int ret;
1060         struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
1061         struct vmw_master *vmaster;
1062
1063         if (!drm_is_primary_client(file_priv) || !(flags & DRM_AUTH))
1064                 return NULL;
1065
1066         ret = mutex_lock_interruptible(&dev->master_mutex);
1067         if (unlikely(ret != 0))
1068                 return ERR_PTR(-ERESTARTSYS);
1069
1070         if (drm_is_current_master(file_priv)) {
1071                 mutex_unlock(&dev->master_mutex);
1072                 return NULL;
1073         }
1074
1075         /*
1076          * Check if we were previously master, but now dropped. In that
1077          * case, allow at least render node functionality.
1078          */
1079         if (vmw_fp->locked_master) {
1080                 mutex_unlock(&dev->master_mutex);
1081
1082                 if (flags & DRM_RENDER_ALLOW)
1083                         return NULL;
1084
1085                 DRM_ERROR("Dropped master trying to access ioctl that "
1086                           "requires authentication.\n");
1087                 return ERR_PTR(-EACCES);
1088         }
1089         mutex_unlock(&dev->master_mutex);
1090
1091         /*
1092          * Take the TTM lock. Possibly sleep waiting for the authenticating
1093          * master to become master again, or for a SIGTERM if the
1094          * authenticating master exits.
1095          */
1096         vmaster = vmw_master(file_priv->master);
1097         ret = ttm_read_lock(&vmaster->lock, true);
1098         if (unlikely(ret != 0))
1099                 vmaster = ERR_PTR(ret);
1100
1101         return vmaster;
1102 }
1103
1104 static long vmw_generic_ioctl(struct file *filp, unsigned int cmd,
1105                               unsigned long arg,
1106                               long (*ioctl_func)(struct file *, unsigned int,
1107                                                  unsigned long))
1108 {
1109         struct drm_file *file_priv = filp->private_data;
1110         struct drm_device *dev = file_priv->minor->dev;
1111         unsigned int nr = DRM_IOCTL_NR(cmd);
1112         struct vmw_master *vmaster;
1113         unsigned int flags;
1114         long ret;
1115
1116         /*
1117          * Do extra checking on driver private ioctls.
1118          */
1119
1120         if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
1121             && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
1122                 const struct drm_ioctl_desc *ioctl =
1123                         &vmw_ioctls[nr - DRM_COMMAND_BASE];
1124
1125                 if (nr == DRM_COMMAND_BASE + DRM_VMW_EXECBUF) {
1126                         ret = (long) drm_ioctl_permit(ioctl->flags, file_priv);
1127                         if (unlikely(ret != 0))
1128                                 return ret;
1129
1130                         if (unlikely((cmd & (IOC_IN | IOC_OUT)) != IOC_IN))
1131                                 goto out_io_encoding;
1132
1133                         return (long) vmw_execbuf_ioctl(dev, arg, file_priv,
1134                                                         _IOC_SIZE(cmd));
1135                 } else if (nr == DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT) {
1136                         if (!drm_is_current_master(file_priv) &&
1137                             !capable(CAP_SYS_ADMIN))
1138                                 return -EACCES;
1139                 }
1140
1141                 if (unlikely(ioctl->cmd != cmd))
1142                         goto out_io_encoding;
1143
1144                 flags = ioctl->flags;
1145         } else if (!drm_ioctl_flags(nr, &flags))
1146                 return -EINVAL;
1147
1148         vmaster = vmw_master_check(dev, file_priv, flags);
1149         if (IS_ERR(vmaster)) {
1150                 ret = PTR_ERR(vmaster);
1151
1152                 if (ret != -ERESTARTSYS)
1153                         DRM_INFO("IOCTL ERROR Command %d, Error %ld.\n",
1154                                  nr, ret);
1155                 return ret;
1156         }
1157
1158         ret = ioctl_func(filp, cmd, arg);
1159         if (vmaster)
1160                 ttm_read_unlock(&vmaster->lock);
1161
1162         return ret;
1163
1164 out_io_encoding:
1165         DRM_ERROR("Invalid command format, ioctl %d\n",
1166                   nr - DRM_COMMAND_BASE);
1167
1168         return -EINVAL;
1169 }
1170
1171 static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd,
1172                                unsigned long arg)
1173 {
1174         return vmw_generic_ioctl(filp, cmd, arg, &drm_ioctl);
1175 }
1176
1177 #ifdef CONFIG_COMPAT
1178 static long vmw_compat_ioctl(struct file *filp, unsigned int cmd,
1179                              unsigned long arg)
1180 {
1181         return vmw_generic_ioctl(filp, cmd, arg, &drm_compat_ioctl);
1182 }
1183 #endif
1184
1185 static void vmw_lastclose(struct drm_device *dev)
1186 {
1187 }
1188
1189 static void vmw_master_init(struct vmw_master *vmaster)
1190 {
1191         ttm_lock_init(&vmaster->lock);
1192 }
1193
1194 static int vmw_master_create(struct drm_device *dev,
1195                              struct drm_master *master)
1196 {
1197         struct vmw_master *vmaster;
1198
1199         vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL);
1200         if (unlikely(!vmaster))
1201                 return -ENOMEM;
1202
1203         vmw_master_init(vmaster);
1204         ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
1205         master->driver_priv = vmaster;
1206
1207         return 0;
1208 }
1209
1210 static void vmw_master_destroy(struct drm_device *dev,
1211                                struct drm_master *master)
1212 {
1213         struct vmw_master *vmaster = vmw_master(master);
1214
1215         master->driver_priv = NULL;
1216         kfree(vmaster);
1217 }
1218
1219 static int vmw_master_set(struct drm_device *dev,
1220                           struct drm_file *file_priv,
1221                           bool from_open)
1222 {
1223         struct vmw_private *dev_priv = vmw_priv(dev);
1224         struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
1225         struct vmw_master *active = dev_priv->active_master;
1226         struct vmw_master *vmaster = vmw_master(file_priv->master);
1227         int ret = 0;
1228
1229         if (active) {
1230                 BUG_ON(active != &dev_priv->fbdev_master);
1231                 ret = ttm_vt_lock(&active->lock, false, vmw_fp->tfile);
1232                 if (unlikely(ret != 0))
1233                         return ret;
1234
1235                 ttm_lock_set_kill(&active->lock, true, SIGTERM);
1236                 dev_priv->active_master = NULL;
1237         }
1238
1239         ttm_lock_set_kill(&vmaster->lock, false, SIGTERM);
1240         if (!from_open) {
1241                 ttm_vt_unlock(&vmaster->lock);
1242                 BUG_ON(vmw_fp->locked_master != file_priv->master);
1243                 drm_master_put(&vmw_fp->locked_master);
1244         }
1245
1246         dev_priv->active_master = vmaster;
1247         drm_sysfs_hotplug_event(dev);
1248
1249         return 0;
1250 }
1251
1252 static void vmw_master_drop(struct drm_device *dev,
1253                             struct drm_file *file_priv)
1254 {
1255         struct vmw_private *dev_priv = vmw_priv(dev);
1256         struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
1257         struct vmw_master *vmaster = vmw_master(file_priv->master);
1258         int ret;
1259
1260         /**
1261          * Make sure the master doesn't disappear while we have
1262          * it locked.
1263          */
1264
1265         vmw_fp->locked_master = drm_master_get(file_priv->master);
1266         ret = ttm_vt_lock(&vmaster->lock, false, vmw_fp->tfile);
1267         vmw_kms_legacy_hotspot_clear(dev_priv);
1268         if (unlikely((ret != 0))) {
1269                 DRM_ERROR("Unable to lock TTM at VT switch.\n");
1270                 drm_master_put(&vmw_fp->locked_master);
1271         }
1272
1273         ttm_lock_set_kill(&vmaster->lock, false, SIGTERM);
1274
1275         if (!dev_priv->enable_fb)
1276                 vmw_svga_disable(dev_priv);
1277
1278         dev_priv->active_master = &dev_priv->fbdev_master;
1279         ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
1280         ttm_vt_unlock(&dev_priv->fbdev_master.lock);
1281
1282         vmw_fb_refresh(dev_priv);
1283 }
1284
1285 /**
1286  * __vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM.
1287  *
1288  * @dev_priv: Pointer to device private struct.
1289  * Needs the reservation sem to be held in non-exclusive mode.
1290  */
1291 static void __vmw_svga_enable(struct vmw_private *dev_priv)
1292 {
1293         spin_lock(&dev_priv->svga_lock);
1294         if (!dev_priv->bdev.man[TTM_PL_VRAM].use_type) {
1295                 vmw_write(dev_priv, SVGA_REG_ENABLE, SVGA_REG_ENABLE);
1296                 dev_priv->bdev.man[TTM_PL_VRAM].use_type = true;
1297         }
1298         spin_unlock(&dev_priv->svga_lock);
1299 }
1300
1301 /**
1302  * vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM.
1303  *
1304  * @dev_priv: Pointer to device private struct.
1305  */
1306 void vmw_svga_enable(struct vmw_private *dev_priv)
1307 {
1308         (void) ttm_read_lock(&dev_priv->reservation_sem, false);
1309         __vmw_svga_enable(dev_priv);
1310         ttm_read_unlock(&dev_priv->reservation_sem);
1311 }
1312
1313 /**
1314  * __vmw_svga_disable - Disable SVGA mode and use of VRAM.
1315  *
1316  * @dev_priv: Pointer to device private struct.
1317  * Needs the reservation sem to be held in exclusive mode.
1318  * Will not empty VRAM. VRAM must be emptied by caller.
1319  */
1320 static void __vmw_svga_disable(struct vmw_private *dev_priv)
1321 {
1322         spin_lock(&dev_priv->svga_lock);
1323         if (dev_priv->bdev.man[TTM_PL_VRAM].use_type) {
1324                 dev_priv->bdev.man[TTM_PL_VRAM].use_type = false;
1325                 vmw_write(dev_priv, SVGA_REG_ENABLE,
1326                           SVGA_REG_ENABLE_HIDE |
1327                           SVGA_REG_ENABLE_ENABLE);
1328         }
1329         spin_unlock(&dev_priv->svga_lock);
1330 }
1331
1332 /**
1333  * vmw_svga_disable - Disable SVGA_MODE, and use of VRAM. Keep the fifo
1334  * running.
1335  *
1336  * @dev_priv: Pointer to device private struct.
1337  * Will empty VRAM.
1338  */
1339 void vmw_svga_disable(struct vmw_private *dev_priv)
1340 {
1341         ttm_write_lock(&dev_priv->reservation_sem, false);
1342         spin_lock(&dev_priv->svga_lock);
1343         if (dev_priv->bdev.man[TTM_PL_VRAM].use_type) {
1344                 dev_priv->bdev.man[TTM_PL_VRAM].use_type = false;
1345                 spin_unlock(&dev_priv->svga_lock);
1346                 if (ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM))
1347                         DRM_ERROR("Failed evicting VRAM buffers.\n");
1348                 vmw_write(dev_priv, SVGA_REG_ENABLE,
1349                           SVGA_REG_ENABLE_HIDE |
1350                           SVGA_REG_ENABLE_ENABLE);
1351         } else
1352                 spin_unlock(&dev_priv->svga_lock);
1353         ttm_write_unlock(&dev_priv->reservation_sem);
1354 }
1355
1356 static void vmw_remove(struct pci_dev *pdev)
1357 {
1358         struct drm_device *dev = pci_get_drvdata(pdev);
1359
1360         pci_disable_device(pdev);
1361         drm_put_dev(dev);
1362 }
1363
1364 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
1365                               void *ptr)
1366 {
1367         struct vmw_private *dev_priv =
1368                 container_of(nb, struct vmw_private, pm_nb);
1369
1370         switch (val) {
1371         case PM_HIBERNATION_PREPARE:
1372                 /*
1373                  * Take the reservation sem in write mode, which will make sure
1374                  * there are no other processes holding a buffer object
1375                  * reservation, meaning we should be able to evict all buffer
1376                  * objects if needed.
1377                  * Once user-space processes have been frozen, we can release
1378                  * the lock again.
1379                  */
1380                 ttm_suspend_lock(&dev_priv->reservation_sem);
1381                 dev_priv->suspend_locked = true;
1382                 break;
1383         case PM_POST_HIBERNATION:
1384         case PM_POST_RESTORE:
1385                 if (READ_ONCE(dev_priv->suspend_locked)) {
1386                         dev_priv->suspend_locked = false;
1387                         ttm_suspend_unlock(&dev_priv->reservation_sem);
1388                 }
1389                 break;
1390         default:
1391                 break;
1392         }
1393         return 0;
1394 }
1395
1396 static int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
1397 {
1398         struct drm_device *dev = pci_get_drvdata(pdev);
1399         struct vmw_private *dev_priv = vmw_priv(dev);
1400
1401         if (dev_priv->refuse_hibernation)
1402                 return -EBUSY;
1403
1404         pci_save_state(pdev);
1405         pci_disable_device(pdev);
1406         pci_set_power_state(pdev, PCI_D3hot);
1407         return 0;
1408 }
1409
1410 static int vmw_pci_resume(struct pci_dev *pdev)
1411 {
1412         pci_set_power_state(pdev, PCI_D0);
1413         pci_restore_state(pdev);
1414         return pci_enable_device(pdev);
1415 }
1416
1417 static int vmw_pm_suspend(struct device *kdev)
1418 {
1419         struct pci_dev *pdev = to_pci_dev(kdev);
1420         struct pm_message dummy;
1421
1422         dummy.event = 0;
1423
1424         return vmw_pci_suspend(pdev, dummy);
1425 }
1426
1427 static int vmw_pm_resume(struct device *kdev)
1428 {
1429         struct pci_dev *pdev = to_pci_dev(kdev);
1430
1431         return vmw_pci_resume(pdev);
1432 }
1433
1434 static int vmw_pm_freeze(struct device *kdev)
1435 {
1436         struct pci_dev *pdev = to_pci_dev(kdev);
1437         struct drm_device *dev = pci_get_drvdata(pdev);
1438         struct vmw_private *dev_priv = vmw_priv(dev);
1439         int ret;
1440
1441         /*
1442          * Unlock for vmw_kms_suspend.
1443          * No user-space processes should be running now.
1444          */
1445         ttm_suspend_unlock(&dev_priv->reservation_sem);
1446         ret = vmw_kms_suspend(dev_priv->dev);
1447         if (ret) {
1448                 ttm_suspend_lock(&dev_priv->reservation_sem);
1449                 DRM_ERROR("Failed to freeze modesetting.\n");
1450                 return ret;
1451         }
1452         dev_priv->suspended = true;
1453         if (dev_priv->enable_fb)
1454                 vmw_fb_off(dev_priv);
1455
1456         ttm_suspend_lock(&dev_priv->reservation_sem);
1457         vmw_execbuf_release_pinned_bo(dev_priv);
1458         vmw_resource_evict_all(dev_priv);
1459         vmw_release_device_early(dev_priv);
1460         ttm_bo_swapout_all(&dev_priv->bdev);
1461         if (dev_priv->enable_fb)
1462                 vmw_fifo_resource_dec(dev_priv);
1463         if (atomic_read(&dev_priv->num_fifo_resources) != 0) {
1464                 DRM_ERROR("Can't hibernate while 3D resources are active.\n");
1465                 if (dev_priv->enable_fb)
1466                         vmw_fifo_resource_inc(dev_priv);
1467                 WARN_ON(vmw_request_device_late(dev_priv));
1468                 dev_priv->suspend_locked = false;
1469                 ttm_suspend_unlock(&dev_priv->reservation_sem);
1470                 if (dev_priv->suspend_state)
1471                         vmw_kms_resume(dev);
1472                 if (dev_priv->enable_fb)
1473                         vmw_fb_on(dev_priv);
1474                 dev_priv->suspended = false;
1475                 vmw_fb_refresh(dev_priv);
1476                 return -EBUSY;
1477         }
1478
1479         vmw_fence_fifo_down(dev_priv->fman);
1480         __vmw_svga_disable(dev_priv);
1481
1482         vmw_release_device_late(dev_priv);
1483         return 0;
1484 }
1485
1486 static int vmw_pm_restore(struct device *kdev)
1487 {
1488         struct pci_dev *pdev = to_pci_dev(kdev);
1489         struct drm_device *dev = pci_get_drvdata(pdev);
1490         struct vmw_private *dev_priv = vmw_priv(dev);
1491         int ret;
1492
1493         vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
1494         (void) vmw_read(dev_priv, SVGA_REG_ID);
1495
1496         if (dev_priv->enable_fb)
1497                 vmw_fifo_resource_inc(dev_priv);
1498
1499         ret = vmw_request_device(dev_priv);
1500         if (ret)
1501                 return ret;
1502
1503         if (dev_priv->enable_fb)
1504                 __vmw_svga_enable(dev_priv);
1505
1506         vmw_fence_fifo_up(dev_priv->fman);
1507         dev_priv->suspend_locked = false;
1508         ttm_suspend_unlock(&dev_priv->reservation_sem);
1509         if (dev_priv->suspend_state)
1510                 vmw_kms_resume(dev_priv->dev);
1511
1512         if (dev_priv->enable_fb)
1513                 vmw_fb_on(dev_priv);
1514
1515         dev_priv->suspended = false;
1516         vmw_fb_refresh(dev_priv);
1517
1518         return 0;
1519 }
1520
1521 static const struct dev_pm_ops vmw_pm_ops = {
1522         .freeze = vmw_pm_freeze,
1523         .thaw = vmw_pm_restore,
1524         .restore = vmw_pm_restore,
1525         .suspend = vmw_pm_suspend,
1526         .resume = vmw_pm_resume,
1527 };
1528
1529 static const struct file_operations vmwgfx_driver_fops = {
1530         .owner = THIS_MODULE,
1531         .open = drm_open,
1532         .release = drm_release,
1533         .unlocked_ioctl = vmw_unlocked_ioctl,
1534         .mmap = vmw_mmap,
1535         .poll = vmw_fops_poll,
1536         .read = vmw_fops_read,
1537 #if defined(CONFIG_COMPAT)
1538         .compat_ioctl = vmw_compat_ioctl,
1539 #endif
1540         .llseek = noop_llseek,
1541 };
1542
1543 static struct drm_driver driver = {
1544         .driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
1545         DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER | DRIVER_ATOMIC,
1546         .load = vmw_driver_load,
1547         .unload = vmw_driver_unload,
1548         .lastclose = vmw_lastclose,
1549         .get_vblank_counter = vmw_get_vblank_counter,
1550         .enable_vblank = vmw_enable_vblank,
1551         .disable_vblank = vmw_disable_vblank,
1552         .ioctls = vmw_ioctls,
1553         .num_ioctls = ARRAY_SIZE(vmw_ioctls),
1554         .master_create = vmw_master_create,
1555         .master_destroy = vmw_master_destroy,
1556         .master_set = vmw_master_set,
1557         .master_drop = vmw_master_drop,
1558         .open = vmw_driver_open,
1559         .postclose = vmw_postclose,
1560
1561         .dumb_create = vmw_dumb_create,
1562         .dumb_map_offset = vmw_dumb_map_offset,
1563         .dumb_destroy = vmw_dumb_destroy,
1564
1565         .prime_fd_to_handle = vmw_prime_fd_to_handle,
1566         .prime_handle_to_fd = vmw_prime_handle_to_fd,
1567
1568         .fops = &vmwgfx_driver_fops,
1569         .name = VMWGFX_DRIVER_NAME,
1570         .desc = VMWGFX_DRIVER_DESC,
1571         .date = VMWGFX_DRIVER_DATE,
1572         .major = VMWGFX_DRIVER_MAJOR,
1573         .minor = VMWGFX_DRIVER_MINOR,
1574         .patchlevel = VMWGFX_DRIVER_PATCHLEVEL
1575 };
1576
1577 static struct pci_driver vmw_pci_driver = {
1578         .name = VMWGFX_DRIVER_NAME,
1579         .id_table = vmw_pci_id_list,
1580         .probe = vmw_probe,
1581         .remove = vmw_remove,
1582         .driver = {
1583                 .pm = &vmw_pm_ops
1584         }
1585 };
1586
1587 static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1588 {
1589         return drm_get_pci_dev(pdev, ent, &driver);
1590 }
1591
1592 static int __init vmwgfx_init(void)
1593 {
1594         int ret;
1595
1596         if (vgacon_text_force())
1597                 return -EINVAL;
1598
1599         ret = pci_register_driver(&vmw_pci_driver);
1600         if (ret)
1601                 DRM_ERROR("Failed initializing DRM.\n");
1602         return ret;
1603 }
1604
1605 static void __exit vmwgfx_exit(void)
1606 {
1607         pci_unregister_driver(&vmw_pci_driver);
1608 }
1609
1610 module_init(vmwgfx_init);
1611 module_exit(vmwgfx_exit);
1612
1613 MODULE_AUTHOR("VMware Inc. and others");
1614 MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device");
1615 MODULE_LICENSE("GPL and additional rights");
1616 MODULE_VERSION(__stringify(VMWGFX_DRIVER_MAJOR) "."
1617                __stringify(VMWGFX_DRIVER_MINOR) "."
1618                __stringify(VMWGFX_DRIVER_PATCHLEVEL) "."
1619                "0");