release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

   1 /**************************************************************************
   2  *
   3  * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "drmP.h"
  29 #include "vmwgfx_drv.h"
  30 #include "ttm/ttm_placement.h"
  31 #include "ttm/ttm_bo_driver.h"
  32 #include "ttm/ttm_object.h"
  33 #include "ttm/ttm_module.h"
  34
  35 #define VMWGFX_DRIVER_NAME "vmwgfx"
  36 #define VMWGFX_DRIVER_DESC "Linux drm driver for VMware graphics devices"
  37 #define VMWGFX_CHIP_SVGAII 0
  38 #define VMW_FB_RESERVATION 0
  39
  40 /**
  41  * Fully encoded drm commands. Might move to vmw_drm.h
  42  */
  43
  44 #define DRM_IOCTL_VMW_GET_PARAM                                 \
  45         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GET_PARAM,          \
  46                  struct drm_vmw_getparam_arg)
  47 #define DRM_IOCTL_VMW_ALLOC_DMABUF                              \
  48         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_ALLOC_DMABUF,       \
  49                 union drm_vmw_alloc_dmabuf_arg)
  50 #define DRM_IOCTL_VMW_UNREF_DMABUF                              \
  51         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_DMABUF,        \
  52                 struct drm_vmw_unref_dmabuf_arg)
  53 #define DRM_IOCTL_VMW_CURSOR_BYPASS                             \
  54         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CURSOR_BYPASS,       \
  55                  struct drm_vmw_cursor_bypass_arg)
  56
  57 #define DRM_IOCTL_VMW_CONTROL_STREAM                            \
  58         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CONTROL_STREAM,      \
  59                  struct drm_vmw_control_stream_arg)
  60 #define DRM_IOCTL_VMW_CLAIM_STREAM                              \
  61         DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CLAIM_STREAM,        \
  62                  struct drm_vmw_stream_arg)
  63 #define DRM_IOCTL_VMW_UNREF_STREAM                              \
  64         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_STREAM,        \
  65                  struct drm_vmw_stream_arg)
  66
  67 #define DRM_IOCTL_VMW_CREATE_CONTEXT                            \
  68         DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CREATE_CONTEXT,      \
  69                 struct drm_vmw_context_arg)
  70 #define DRM_IOCTL_VMW_UNREF_CONTEXT                             \
  71         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_CONTEXT,       \
  72                 struct drm_vmw_context_arg)
  73 #define DRM_IOCTL_VMW_CREATE_SURFACE                            \
  74         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SURFACE,     \
  75                  union drm_vmw_surface_create_arg)
  76 #define DRM_IOCTL_VMW_UNREF_SURFACE                             \
  77         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SURFACE,       \
  78                  struct drm_vmw_surface_arg)
  79 #define DRM_IOCTL_VMW_REF_SURFACE                               \
  80         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_REF_SURFACE,        \
  81                  union drm_vmw_surface_reference_arg)
  82 #define DRM_IOCTL_VMW_EXECBUF                                   \
  83         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_EXECBUF,             \
  84                 struct drm_vmw_execbuf_arg)
  85 #define DRM_IOCTL_VMW_FIFO_DEBUG                                \
  86         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FIFO_DEBUG,         \
  87                  struct drm_vmw_fifo_debug_arg)
  88 #define DRM_IOCTL_VMW_FENCE_WAIT                                \
  89         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_WAIT,         \
  90                  struct drm_vmw_fence_wait_arg)
  91 #define DRM_IOCTL_VMW_UPDATE_LAYOUT                             \
  92         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT,      \
  93                  struct drm_vmw_update_layout_arg)
  94
  95
  96 /**
  97  * The core DRM version of this macro doesn't account for
  98  * DRM_COMMAND_BASE.
  99  */
 100
 101 #define VMW_IOCTL_DEF(ioctl, func, flags) \
 102   [DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = {DRM_##ioctl, flags, func, DRM_IOCTL_##ioctl}
 103
 104 /**
 105  * Ioctl definitions.
 106  */
 107
 108 static struct drm_ioctl_desc vmw_ioctls[] = {
 109         VMW_IOCTL_DEF(VMW_GET_PARAM, vmw_getparam_ioctl,
 110                       DRM_AUTH | DRM_UNLOCKED),
 111         VMW_IOCTL_DEF(VMW_ALLOC_DMABUF, vmw_dmabuf_alloc_ioctl,
 112                       DRM_AUTH | DRM_UNLOCKED),
 113         VMW_IOCTL_DEF(VMW_UNREF_DMABUF, vmw_dmabuf_unref_ioctl,
 114                       DRM_AUTH | DRM_UNLOCKED),
 115         VMW_IOCTL_DEF(VMW_CURSOR_BYPASS,
 116                       vmw_kms_cursor_bypass_ioctl,
 117                       DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
 118
 119         VMW_IOCTL_DEF(VMW_CONTROL_STREAM, vmw_overlay_ioctl,
 120                       DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
 121         VMW_IOCTL_DEF(VMW_CLAIM_STREAM, vmw_stream_claim_ioctl,
 122                       DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
 123         VMW_IOCTL_DEF(VMW_UNREF_STREAM, vmw_stream_unref_ioctl,
 124                       DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
 125
 126         VMW_IOCTL_DEF(VMW_CREATE_CONTEXT, vmw_context_define_ioctl,
 127                       DRM_AUTH | DRM_UNLOCKED),
 128         VMW_IOCTL_DEF(VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl,
 129                       DRM_AUTH | DRM_UNLOCKED),
 130         VMW_IOCTL_DEF(VMW_CREATE_SURFACE, vmw_surface_define_ioctl,
 131                       DRM_AUTH | DRM_UNLOCKED),
 132         VMW_IOCTL_DEF(VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl,
 133                       DRM_AUTH | DRM_UNLOCKED),
 134         VMW_IOCTL_DEF(VMW_REF_SURFACE, vmw_surface_reference_ioctl,
 135                       DRM_AUTH | DRM_UNLOCKED),
 136         VMW_IOCTL_DEF(VMW_EXECBUF, vmw_execbuf_ioctl,
 137                       DRM_AUTH | DRM_UNLOCKED),
 138         VMW_IOCTL_DEF(VMW_FIFO_DEBUG, vmw_fifo_debug_ioctl,
 139                       DRM_AUTH | DRM_ROOT_ONLY | DRM_MASTER | DRM_UNLOCKED),
 140         VMW_IOCTL_DEF(VMW_FENCE_WAIT, vmw_fence_wait_ioctl,
 141                       DRM_AUTH | DRM_UNLOCKED),
 142         VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT, vmw_kms_update_layout_ioctl,
 143                       DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED)
 144 };
 145
 146 static struct pci_device_id vmw_pci_id_list[] = {
 147         {0x15ad, 0x0405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VMWGFX_CHIP_SVGAII},
 148         {0, 0, 0}
 149 };
 150
 151 static int enable_fbdev;
 152
 153 static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
 154 static void vmw_master_init(struct vmw_master *);
 155 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
 156                               void *ptr);
 157
 158 MODULE_PARM_DESC(enable_fbdev, "Enable vmwgfx fbdev");
 159 module_param_named(enable_fbdev, enable_fbdev, int, 0600);
 160
 161 static void vmw_print_capabilities(uint32_t capabilities)
 162 {
 163         DRM_INFO("Capabilities:\n");
 164         if (capabilities & SVGA_CAP_RECT_COPY)
 165                 DRM_INFO("  Rect copy.\n");
 166         if (capabilities & SVGA_CAP_CURSOR)
 167                 DRM_INFO("  Cursor.\n");
 168         if (capabilities & SVGA_CAP_CURSOR_BYPASS)
 169                 DRM_INFO("  Cursor bypass.\n");
 170         if (capabilities & SVGA_CAP_CURSOR_BYPASS_2)
 171                 DRM_INFO("  Cursor bypass 2.\n");
 172         if (capabilities & SVGA_CAP_8BIT_EMULATION)
 173                 DRM_INFO("  8bit emulation.\n");
 174         if (capabilities & SVGA_CAP_ALPHA_CURSOR)
 175                 DRM_INFO("  Alpha cursor.\n");
 176         if (capabilities & SVGA_CAP_3D)
 177                 DRM_INFO("  3D.\n");
 178         if (capabilities & SVGA_CAP_EXTENDED_FIFO)
 179                 DRM_INFO("  Extended Fifo.\n");
 180         if (capabilities & SVGA_CAP_MULTIMON)
 181                 DRM_INFO("  Multimon.\n");
 182         if (capabilities & SVGA_CAP_PITCHLOCK)
 183                 DRM_INFO("  Pitchlock.\n");
 184         if (capabilities & SVGA_CAP_IRQMASK)
 185                 DRM_INFO("  Irq mask.\n");
 186         if (capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)
 187                 DRM_INFO("  Display Topology.\n");
 188         if (capabilities & SVGA_CAP_GMR)
 189                 DRM_INFO("  GMR.\n");
 190         if (capabilities & SVGA_CAP_TRACES)
 191                 DRM_INFO("  Traces.\n");
 192 }
 193
 194 static int vmw_request_device(struct vmw_private *dev_priv)
 195 {
 196         int ret;
 197
 198         ret = vmw_fifo_init(dev_priv, &dev_priv->fifo);
 199         if (unlikely(ret != 0)) {
 200                 DRM_ERROR("Unable to initialize FIFO.\n");
 201                 return ret;
 202         }
 203
 204         return 0;
 205 }
 206
 207 static void vmw_release_device(struct vmw_private *dev_priv)
 208 {
 209         vmw_fifo_release(dev_priv, &dev_priv->fifo);
 210 }
 211
 212 int vmw_3d_resource_inc(struct vmw_private *dev_priv)
 213 {
 214         int ret = 0;
 215
 216         mutex_lock(&dev_priv->release_mutex);
 217         if (unlikely(dev_priv->num_3d_resources++ == 0)) {
 218                 ret = vmw_request_device(dev_priv);
 219                 if (unlikely(ret != 0))
 220                         --dev_priv->num_3d_resources;
 221         }
 222         mutex_unlock(&dev_priv->release_mutex);
 223         return ret;
 224 }
 225
 226
 227 void vmw_3d_resource_dec(struct vmw_private *dev_priv)
 228 {
 229         int32_t n3d;
 230
 231         mutex_lock(&dev_priv->release_mutex);
 232         if (unlikely(--dev_priv->num_3d_resources == 0))
 233                 vmw_release_device(dev_priv);
 234         n3d = (int32_t) dev_priv->num_3d_resources;
 235         mutex_unlock(&dev_priv->release_mutex);
 236
 237         BUG_ON(n3d < 0);
 238 }
 239
 240 static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 241 {
 242         struct vmw_private *dev_priv;
 243         int ret;
 244         uint32_t svga_id;
 245
 246         dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
 247         if (unlikely(dev_priv == NULL)) {
 248                 DRM_ERROR("Failed allocating a device private struct.\n");
 249                 return -ENOMEM;
 250         }
 251         memset(dev_priv, 0, sizeof(*dev_priv));
 252
 253         dev_priv->dev = dev;
 254         dev_priv->vmw_chipset = chipset;
 255         dev_priv->last_read_sequence = (uint32_t) -100;
 256         mutex_init(&dev_priv->hw_mutex);
 257         mutex_init(&dev_priv->cmdbuf_mutex);
 258         mutex_init(&dev_priv->release_mutex);
 259         rwlock_init(&dev_priv->resource_lock);
 260         idr_init(&dev_priv->context_idr);
 261         idr_init(&dev_priv->surface_idr);
 262         idr_init(&dev_priv->stream_idr);
 263         ida_init(&dev_priv->gmr_ida);
 264         mutex_init(&dev_priv->init_mutex);
 265         init_waitqueue_head(&dev_priv->fence_queue);
 266         init_waitqueue_head(&dev_priv->fifo_queue);
 267         atomic_set(&dev_priv->fence_queue_waiters, 0);
 268         atomic_set(&dev_priv->fifo_queue_waiters, 0);
 269         INIT_LIST_HEAD(&dev_priv->gmr_lru);
 270
 271         dev_priv->io_start = pci_resource_start(dev->pdev, 0);
 272         dev_priv->vram_start = pci_resource_start(dev->pdev, 1);
 273         dev_priv->mmio_start = pci_resource_start(dev->pdev, 2);
 274
 275         dev_priv->enable_fb = enable_fbdev;
 276
 277         mutex_lock(&dev_priv->hw_mutex);
 278
 279         vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
 280         svga_id = vmw_read(dev_priv, SVGA_REG_ID);
 281         if (svga_id != SVGA_ID_2) {
 282                 ret = -ENOSYS;
 283                 DRM_ERROR("Unsuported SVGA ID 0x%x\n", svga_id);
 284                 mutex_unlock(&dev_priv->hw_mutex);
 285                 goto out_err0;
 286         }
 287
 288         dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES);
 289
 290         if (dev_priv->capabilities & SVGA_CAP_GMR) {
 291                 dev_priv->max_gmr_descriptors =
 292                         vmw_read(dev_priv,
 293                                  SVGA_REG_GMR_MAX_DESCRIPTOR_LENGTH);
 294                 dev_priv->max_gmr_ids =
 295                         vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS);
 296         }
 297
 298         dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE);
 299         dev_priv->mmio_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE);
 300         dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH);
 301         dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT);
 302
 303         mutex_unlock(&dev_priv->hw_mutex);
 304
 305         vmw_print_capabilities(dev_priv->capabilities);
 306
 307         if (dev_priv->capabilities & SVGA_CAP_GMR) {
 308                 DRM_INFO("Max GMR ids is %u\n",
 309                          (unsigned)dev_priv->max_gmr_ids);
 310                 DRM_INFO("Max GMR descriptors is %u\n",
 311                          (unsigned)dev_priv->max_gmr_descriptors);
 312         }
 313         DRM_INFO("VRAM at 0x%08x size is %u kiB\n",
 314                  dev_priv->vram_start, dev_priv->vram_size / 1024);
 315         DRM_INFO("MMIO at 0x%08x size is %u kiB\n",
 316                  dev_priv->mmio_start, dev_priv->mmio_size / 1024);
 317
 318         ret = vmw_ttm_global_init(dev_priv);
 319         if (unlikely(ret != 0))
 320                 goto out_err0;
 321
 322
 323         vmw_master_init(&dev_priv->fbdev_master);
 324         ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
 325         dev_priv->active_master = &dev_priv->fbdev_master;
 326
 327
 328         ret = ttm_bo_device_init(&dev_priv->bdev,
 329                                  dev_priv->bo_global_ref.ref.object,
 330                                  &vmw_bo_driver, VMWGFX_FILE_PAGE_OFFSET,
 331                                  false);
 332         if (unlikely(ret != 0)) {
 333                 DRM_ERROR("Failed initializing TTM buffer object driver.\n");
 334                 goto out_err1;
 335         }
 336
 337         ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM,
 338                              (dev_priv->vram_size >> PAGE_SHIFT));
 339         if (unlikely(ret != 0)) {
 340                 DRM_ERROR("Failed initializing memory manager for VRAM.\n");
 341                 goto out_err2;
 342         }
 343
 344         dev_priv->mmio_mtrr = drm_mtrr_add(dev_priv->mmio_start,
 345                                            dev_priv->mmio_size, DRM_MTRR_WC);
 346
 347         dev_priv->mmio_virt = ioremap_wc(dev_priv->mmio_start,
 348                                          dev_priv->mmio_size);
 349
 350         if (unlikely(dev_priv->mmio_virt == NULL)) {
 351                 ret = -ENOMEM;
 352                 DRM_ERROR("Failed mapping MMIO.\n");
 353                 goto out_err3;
 354         }
 355
 356         /* Need mmio memory to check for fifo pitchlock cap. */
 357         if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
 358             !(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) &&
 359             !vmw_fifo_have_pitchlock(dev_priv)) {
 360                 ret = -ENOSYS;
 361                 DRM_ERROR("Hardware has no pitchlock\n");
 362                 goto out_err4;
 363         }
 364
 365         dev_priv->tdev = ttm_object_device_init
 366             (dev_priv->mem_global_ref.object, 12);
 367
 368         if (unlikely(dev_priv->tdev == NULL)) {
 369                 DRM_ERROR("Unable to initialize TTM object management.\n");
 370                 ret = -ENOMEM;
 371                 goto out_err4;
 372         }
 373
 374         dev->dev_private = dev_priv;
 375
 376         ret = pci_request_regions(dev->pdev, "vmwgfx probe");
 377         dev_priv->stealth = (ret != 0);
 378         if (dev_priv->stealth) {
 379                 /**
 380                  * Request at least the mmio PCI resource.
 381                  */
 382
 383                 DRM_INFO("It appears like vesafb is loaded. "
 384                          "Ignore above error if any.\n");
 385                 ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe");
 386                 if (unlikely(ret != 0)) {
 387                         DRM_ERROR("Failed reserving the SVGA MMIO resource.\n");
 388                         goto out_no_device;
 389                 }
 390         }
 391         ret = vmw_kms_init(dev_priv);
 392         if (unlikely(ret != 0))
 393                 goto out_no_kms;
 394         vmw_overlay_init(dev_priv);
 395         if (dev_priv->enable_fb) {
 396                 ret = vmw_3d_resource_inc(dev_priv);
 397                 if (unlikely(ret != 0))
 398                         goto out_no_fifo;
 399                 vmw_kms_save_vga(dev_priv);
 400                 vmw_fb_init(dev_priv);
 401                 DRM_INFO("%s", vmw_fifo_have_3d(dev_priv) ?
 402                          "Detected device 3D availability.\n" :
 403                          "Detected no device 3D availability.\n");
 404         } else {
 405                 DRM_INFO("Delayed 3D detection since we're not "
 406                          "running the device in SVGA mode yet.\n");
 407         }
 408
 409         if (dev_priv->capabilities & SVGA_CAP_IRQMASK) {
 410                 ret = drm_irq_install(dev);
 411                 if (unlikely(ret != 0)) {
 412                         DRM_ERROR("Failed installing irq: %d\n", ret);
 413                         goto out_no_irq;
 414                 }
 415         }
 416
 417         dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
 418         register_pm_notifier(&dev_priv->pm_nb);
 419
 420         return 0;
 421
 422 out_no_irq:
 423         if (dev_priv->enable_fb) {
 424                 vmw_fb_close(dev_priv);
 425                 vmw_kms_restore_vga(dev_priv);
 426                 vmw_3d_resource_dec(dev_priv);
 427         }
 428 out_no_fifo:
 429         vmw_overlay_close(dev_priv);
 430         vmw_kms_close(dev_priv);
 431 out_no_kms:
 432         if (dev_priv->stealth)
 433                 pci_release_region(dev->pdev, 2);
 434         else
 435                 pci_release_regions(dev->pdev);
 436 out_no_device:
 437         ttm_object_device_release(&dev_priv->tdev);
 438 out_err4:
 439         iounmap(dev_priv->mmio_virt);
 440 out_err3:
 441         drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start,
 442                      dev_priv->mmio_size, DRM_MTRR_WC);
 443         (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
 444 out_err2:
 445         (void)ttm_bo_device_release(&dev_priv->bdev);
 446 out_err1:
 447         vmw_ttm_global_release(dev_priv);
 448 out_err0:
 449         ida_destroy(&dev_priv->gmr_ida);
 450         idr_destroy(&dev_priv->surface_idr);
 451         idr_destroy(&dev_priv->context_idr);
 452         idr_destroy(&dev_priv->stream_idr);
 453         kfree(dev_priv);
 454         return ret;
 455 }
 456
 457 static int vmw_driver_unload(struct drm_device *dev)
 458 {
 459         struct vmw_private *dev_priv = vmw_priv(dev);
 460
 461         unregister_pm_notifier(&dev_priv->pm_nb);
 462
 463         if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
 464                 drm_irq_uninstall(dev_priv->dev);
 465         if (dev_priv->enable_fb) {
 466                 vmw_fb_close(dev_priv);
 467                 vmw_kms_restore_vga(dev_priv);
 468                 vmw_3d_resource_dec(dev_priv);
 469         }
 470         vmw_kms_close(dev_priv);
 471         vmw_overlay_close(dev_priv);
 472         if (dev_priv->stealth)
 473                 pci_release_region(dev->pdev, 2);
 474         else
 475                 pci_release_regions(dev->pdev);
 476
 477         ttm_object_device_release(&dev_priv->tdev);
 478         iounmap(dev_priv->mmio_virt);
 479         drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start,
 480                      dev_priv->mmio_size, DRM_MTRR_WC);
 481         (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
 482         (void)ttm_bo_device_release(&dev_priv->bdev);
 483         vmw_ttm_global_release(dev_priv);
 484         ida_destroy(&dev_priv->gmr_ida);
 485         idr_destroy(&dev_priv->surface_idr);
 486         idr_destroy(&dev_priv->context_idr);
 487         idr_destroy(&dev_priv->stream_idr);
 488
 489         kfree(dev_priv);
 490
 491         return 0;
 492 }
 493
 494 static void vmw_postclose(struct drm_device *dev,
 495                          struct drm_file *file_priv)
 496 {
 497         struct vmw_fpriv *vmw_fp;
 498
 499         vmw_fp = vmw_fpriv(file_priv);
 500         ttm_object_file_release(&vmw_fp->tfile);
 501         if (vmw_fp->locked_master)
 502                 drm_master_put(&vmw_fp->locked_master);
 503         kfree(vmw_fp);
 504 }
 505
 506 static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
 507 {
 508         struct vmw_private *dev_priv = vmw_priv(dev);
 509         struct vmw_fpriv *vmw_fp;
 510         int ret = -ENOMEM;
 511
 512         vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL);
 513         if (unlikely(vmw_fp == NULL))
 514                 return ret;
 515
 516         vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev, 10);
 517         if (unlikely(vmw_fp->tfile == NULL))
 518                 goto out_no_tfile;
 519
 520         file_priv->driver_priv = vmw_fp;
 521
 522         if (unlikely(dev_priv->bdev.dev_mapping == NULL))
 523                 dev_priv->bdev.dev_mapping =
 524                         file_priv->filp->f_path.dentry->d_inode->i_mapping;
 525
 526         return 0;
 527
 528 out_no_tfile:
 529         kfree(vmw_fp);
 530         return ret;
 531 }
 532
 533 static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd,
 534                                unsigned long arg)
 535 {
 536         struct drm_file *file_priv = filp->private_data;
 537         struct drm_device *dev = file_priv->minor->dev;
 538         unsigned int nr = DRM_IOCTL_NR(cmd);
 539
 540         /*
 541          * Do extra checking on driver private ioctls.
 542          */
 543
 544         if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
 545             && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
 546                 struct drm_ioctl_desc *ioctl =
 547                     &vmw_ioctls[nr - DRM_COMMAND_BASE];
 548
 549                 if (unlikely(ioctl->cmd_drv != cmd)) {
 550                         DRM_ERROR("Invalid command format, ioctl %d\n",
 551                                   nr - DRM_COMMAND_BASE);
 552                         return -EINVAL;
 553                 }
 554         }
 555
 556         return drm_ioctl(filp, cmd, arg);
 557 }
 558
 559 static int vmw_firstopen(struct drm_device *dev)
 560 {
 561         struct vmw_private *dev_priv = vmw_priv(dev);
 562         dev_priv->is_opened = true;
 563
 564         return 0;
 565 }
 566
 567 static void vmw_lastclose(struct drm_device *dev)
 568 {
 569         struct vmw_private *dev_priv = vmw_priv(dev);
 570         struct drm_crtc *crtc;
 571         struct drm_mode_set set;
 572         int ret;
 573
 574         /**
 575          * Do nothing on the lastclose call from drm_unload.
 576          */
 577
 578         if (!dev_priv->is_opened)
 579                 return;
 580
 581         dev_priv->is_opened = false;
 582         set.x = 0;
 583         set.y = 0;
 584         set.fb = NULL;
 585         set.mode = NULL;
 586         set.connectors = NULL;
 587         set.num_connectors = 0;
 588
 589         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 590                 set.crtc = crtc;
 591                 ret = crtc->funcs->set_config(&set);
 592                 WARN_ON(ret != 0);
 593         }
 594
 595 }
 596
 597 static void vmw_master_init(struct vmw_master *vmaster)
 598 {
 599         ttm_lock_init(&vmaster->lock);
 600 }
 601
 602 static int vmw_master_create(struct drm_device *dev,
 603                              struct drm_master *master)
 604 {
 605         struct vmw_master *vmaster;
 606
 607         vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL);
 608         if (unlikely(vmaster == NULL))
 609                 return -ENOMEM;
 610
 611         ttm_lock_init(&vmaster->lock);
 612         ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
 613         master->driver_priv = vmaster;
 614
 615         return 0;
 616 }
 617
 618 static void vmw_master_destroy(struct drm_device *dev,
 619                                struct drm_master *master)
 620 {
 621         struct vmw_master *vmaster = vmw_master(master);
 622
 623         master->driver_priv = NULL;
 624         kfree(vmaster);
 625 }
 626
 627
 628 static int vmw_master_set(struct drm_device *dev,
 629                           struct drm_file *file_priv,
 630                           bool from_open)
 631 {
 632         struct vmw_private *dev_priv = vmw_priv(dev);
 633         struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
 634         struct vmw_master *active = dev_priv->active_master;
 635         struct vmw_master *vmaster = vmw_master(file_priv->master);
 636         int ret = 0;
 637
 638         if (!dev_priv->enable_fb) {
 639                 ret = vmw_3d_resource_inc(dev_priv);
 640                 if (unlikely(ret != 0))
 641                         return ret;
 642                 vmw_kms_save_vga(dev_priv);
 643                 mutex_lock(&dev_priv->hw_mutex);
 644                 vmw_write(dev_priv, SVGA_REG_TRACES, 0);
 645                 mutex_unlock(&dev_priv->hw_mutex);
 646         }
 647
 648         if (active) {
 649                 BUG_ON(active != &dev_priv->fbdev_master);
 650                 ret = ttm_vt_lock(&active->lock, false, vmw_fp->tfile);
 651                 if (unlikely(ret != 0))
 652                         goto out_no_active_lock;
 653
 654                 ttm_lock_set_kill(&active->lock, true, SIGTERM);
 655                 ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
 656                 if (unlikely(ret != 0)) {
 657                         DRM_ERROR("Unable to clean VRAM on "
 658                                   "master drop.\n");
 659                 }
 660
 661                 dev_priv->active_master = NULL;
 662         }
 663
 664         ttm_lock_set_kill(&vmaster->lock, false, SIGTERM);
 665         if (!from_open) {
 666                 ttm_vt_unlock(&vmaster->lock);
 667                 BUG_ON(vmw_fp->locked_master != file_priv->master);
 668                 drm_master_put(&vmw_fp->locked_master);
 669         }
 670
 671         dev_priv->active_master = vmaster;
 672
 673         return 0;
 674
 675 out_no_active_lock:
 676         if (!dev_priv->enable_fb) {
 677                 mutex_lock(&dev_priv->hw_mutex);
 678                 vmw_write(dev_priv, SVGA_REG_TRACES, 1);
 679                 mutex_unlock(&dev_priv->hw_mutex);
 680                 vmw_kms_restore_vga(dev_priv);
 681                 vmw_3d_resource_dec(dev_priv);
 682         }
 683         return ret;
 684 }
 685
 686 static void vmw_master_drop(struct drm_device *dev,
 687                             struct drm_file *file_priv,
 688                             bool from_release)
 689 {
 690         struct vmw_private *dev_priv = vmw_priv(dev);
 691         struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
 692         struct vmw_master *vmaster = vmw_master(file_priv->master);
 693         int ret;
 694
 695         /**
 696          * Make sure the master doesn't disappear while we have
 697          * it locked.
 698          */
 699
 700         vmw_fp->locked_master = drm_master_get(file_priv->master);
 701         ret = ttm_vt_lock(&vmaster->lock, false, vmw_fp->tfile);
 702
 703         if (unlikely((ret != 0))) {
 704                 DRM_ERROR("Unable to lock TTM at VT switch.\n");
 705                 drm_master_put(&vmw_fp->locked_master);
 706         }
 707
 708         ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
 709
 710         if (!dev_priv->enable_fb) {
 711                 ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
 712                 if (unlikely(ret != 0))
 713                         DRM_ERROR("Unable to clean VRAM on master drop.\n");
 714                 mutex_lock(&dev_priv->hw_mutex);
 715                 vmw_write(dev_priv, SVGA_REG_TRACES, 1);
 716                 mutex_unlock(&dev_priv->hw_mutex);
 717                 vmw_kms_restore_vga(dev_priv);
 718                 vmw_3d_resource_dec(dev_priv);
 719         }
 720
 721         dev_priv->active_master = &dev_priv->fbdev_master;
 722         ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
 723         ttm_vt_unlock(&dev_priv->fbdev_master.lock);
 724
 725         if (dev_priv->enable_fb)
 726                 vmw_fb_on(dev_priv);
 727 }
 728
 729
 730 static void vmw_remove(struct pci_dev *pdev)
 731 {
 732         struct drm_device *dev = pci_get_drvdata(pdev);
 733
 734         drm_put_dev(dev);
 735 }
 736
 737 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
 738                               void *ptr)
 739 {
 740         struct vmw_private *dev_priv =
 741                 container_of(nb, struct vmw_private, pm_nb);
 742         struct vmw_master *vmaster = dev_priv->active_master;
 743
 744         switch (val) {
 745         case PM_HIBERNATION_PREPARE:
 746         case PM_SUSPEND_PREPARE:
 747                 ttm_suspend_lock(&vmaster->lock);
 748
 749                 /**
 750                  * This empties VRAM and unbinds all GMR bindings.
 751                  * Buffer contents is moved to swappable memory.
 752                  */
 753                 ttm_bo_swapout_all(&dev_priv->bdev);
 754                 break;
 755         case PM_POST_HIBERNATION:
 756         case PM_POST_SUSPEND:
 757                 ttm_suspend_unlock(&vmaster->lock);
 758                 break;
 759         case PM_RESTORE_PREPARE:
 760                 break;
 761         case PM_POST_RESTORE:
 762                 break;
 763         default:
 764                 break;
 765         }
 766         return 0;
 767 }
 768
 769 /**
 770  * These might not be needed with the virtual SVGA device.
 771  */
 772
 773 int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 774 {
 775         pci_save_state(pdev);
 776         pci_disable_device(pdev);
 777         pci_set_power_state(pdev, PCI_D3hot);
 778         return 0;
 779 }
 780
 781 int vmw_pci_resume(struct pci_dev *pdev)
 782 {
 783         pci_set_power_state(pdev, PCI_D0);
 784         pci_restore_state(pdev);
 785         return pci_enable_device(pdev);
 786 }
 787
 788 static struct drm_driver driver = {
 789         .driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
 790         DRIVER_MODESET,
 791         .load = vmw_driver_load,
 792         .unload = vmw_driver_unload,
 793         .firstopen = vmw_firstopen,
 794         .lastclose = vmw_lastclose,
 795         .irq_preinstall = vmw_irq_preinstall,
 796         .irq_postinstall = vmw_irq_postinstall,
 797         .irq_uninstall = vmw_irq_uninstall,
 798         .irq_handler = vmw_irq_handler,
 799         .get_vblank_counter = vmw_get_vblank_counter,
 800         .reclaim_buffers_locked = NULL,
 801         .get_map_ofs = drm_core_get_map_ofs,
 802         .get_reg_ofs = drm_core_get_reg_ofs,
 803         .ioctls = vmw_ioctls,
 804         .num_ioctls = DRM_ARRAY_SIZE(vmw_ioctls),
 805         .dma_quiescent = NULL,  /*vmw_dma_quiescent, */
 806         .master_create = vmw_master_create,
 807         .master_destroy = vmw_master_destroy,
 808         .master_set = vmw_master_set,
 809         .master_drop = vmw_master_drop,
 810         .open = vmw_driver_open,
 811         .postclose = vmw_postclose,
 812         .fops = {
 813                  .owner = THIS_MODULE,
 814                  .open = drm_open,
 815                  .release = drm_release,
 816                  .unlocked_ioctl = vmw_unlocked_ioctl,
 817                  .mmap = vmw_mmap,
 818                  .poll = drm_poll,
 819                  .fasync = drm_fasync,
 820 #if defined(CONFIG_COMPAT)
 821                  .compat_ioctl = drm_compat_ioctl,
 822 #endif
 823                  },
 824         .pci_driver = {
 825                        .name = VMWGFX_DRIVER_NAME,
 826                        .id_table = vmw_pci_id_list,
 827                        .probe = vmw_probe,
 828                        .remove = vmw_remove,
 829                        .suspend = vmw_pci_suspend,
 830                        .resume = vmw_pci_resume
 831                        },
 832         .name = VMWGFX_DRIVER_NAME,
 833         .desc = VMWGFX_DRIVER_DESC,
 834         .date = VMWGFX_DRIVER_DATE,
 835         .major = VMWGFX_DRIVER_MAJOR,
 836         .minor = VMWGFX_DRIVER_MINOR,
 837         .patchlevel = VMWGFX_DRIVER_PATCHLEVEL
 838 };
 839
 840 static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 841 {
 842         return drm_get_pci_dev(pdev, ent, &driver);
 843 }
 844
 845 static int __init vmwgfx_init(void)
 846 {
 847         int ret;
 848         ret = drm_init(&driver);
 849         if (ret)
 850                 DRM_ERROR("Failed initializing DRM.\n");
 851         return ret;
 852 }
 853
 854 static void __exit vmwgfx_exit(void)
 855 {
 856         drm_exit(&driver);
 857 }
 858
 859 module_init(vmwgfx_init);
 860 module_exit(vmwgfx_exit);
 861
 862 MODULE_AUTHOR("VMware Inc. and others");
 863 MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device");
 864 MODULE_LICENSE("GPL and additional rights");