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         mutex_init(&dev_priv->init_mutex);
 264         init_waitqueue_head(&dev_priv->fence_queue);
 265         init_waitqueue_head(&dev_priv->fifo_queue);
 266         atomic_set(&dev_priv->fence_queue_waiters, 0);
 267         atomic_set(&dev_priv->fifo_queue_waiters, 0);
 268
 269         dev_priv->io_start = pci_resource_start(dev->pdev, 0);
 270         dev_priv->vram_start = pci_resource_start(dev->pdev, 1);
 271         dev_priv->mmio_start = pci_resource_start(dev->pdev, 2);
 272
 273         dev_priv->enable_fb = enable_fbdev;
 274
 275         mutex_lock(&dev_priv->hw_mutex);
 276
 277         vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
 278         svga_id = vmw_read(dev_priv, SVGA_REG_ID);
 279         if (svga_id != SVGA_ID_2) {
 280                 ret = -ENOSYS;
 281                 DRM_ERROR("Unsuported SVGA ID 0x%x\n", svga_id);
 282                 mutex_unlock(&dev_priv->hw_mutex);
 283                 goto out_err0;
 284         }
 285
 286         dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES);
 287
 288         if (dev_priv->capabilities & SVGA_CAP_GMR) {
 289                 dev_priv->max_gmr_descriptors =
 290                         vmw_read(dev_priv,
 291                                  SVGA_REG_GMR_MAX_DESCRIPTOR_LENGTH);
 292                 dev_priv->max_gmr_ids =
 293                         vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS);
 294         }
 295
 296         dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE);
 297         dev_priv->mmio_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE);
 298         dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH);
 299         dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT);
 300
 301         mutex_unlock(&dev_priv->hw_mutex);
 302
 303         vmw_print_capabilities(dev_priv->capabilities);
 304
 305         if (dev_priv->capabilities & SVGA_CAP_GMR) {
 306                 DRM_INFO("Max GMR ids is %u\n",
 307                          (unsigned)dev_priv->max_gmr_ids);
 308                 DRM_INFO("Max GMR descriptors is %u\n",
 309                          (unsigned)dev_priv->max_gmr_descriptors);
 310         }
 311         DRM_INFO("VRAM at 0x%08x size is %u kiB\n",
 312                  dev_priv->vram_start, dev_priv->vram_size / 1024);
 313         DRM_INFO("MMIO at 0x%08x size is %u kiB\n",
 314                  dev_priv->mmio_start, dev_priv->mmio_size / 1024);
 315
 316         ret = vmw_ttm_global_init(dev_priv);
 317         if (unlikely(ret != 0))
 318                 goto out_err0;
 319
 320
 321         vmw_master_init(&dev_priv->fbdev_master);
 322         ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
 323         dev_priv->active_master = &dev_priv->fbdev_master;
 324
 325         dev_priv->bdev.dev = dev->dev;
 326         ret = ttm_bo_device_init(&dev_priv->bdev,
 327                                  dev_priv->bo_global_ref.ref.object,
 328                                  &vmw_bo_driver, VMWGFX_FILE_PAGE_OFFSET,
 329                                  false);
 330         if (unlikely(ret != 0)) {
 331                 DRM_ERROR("Failed initializing TTM buffer object driver.\n");
 332                 goto out_err1;
 333         }
 334
 335         ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM,
 336                              (dev_priv->vram_size >> PAGE_SHIFT));
 337         if (unlikely(ret != 0)) {
 338                 DRM_ERROR("Failed initializing memory manager for VRAM.\n");
 339                 goto out_err2;
 340         }
 341
 342         dev_priv->has_gmr = true;
 343         if (ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_GMR,
 344                            dev_priv->max_gmr_ids) != 0) {
 345                 DRM_INFO("No GMR memory available. "
 346                          "Graphics memory resources are very limited.\n");
 347                 dev_priv->has_gmr = false;
 348         }
 349
 350         dev_priv->mmio_mtrr = drm_mtrr_add(dev_priv->mmio_start,
 351                                            dev_priv->mmio_size, DRM_MTRR_WC);
 352
 353         dev_priv->mmio_virt = ioremap_wc(dev_priv->mmio_start,
 354                                          dev_priv->mmio_size);
 355
 356         if (unlikely(dev_priv->mmio_virt == NULL)) {
 357                 ret = -ENOMEM;
 358                 DRM_ERROR("Failed mapping MMIO.\n");
 359                 goto out_err3;
 360         }
 361
 362         /* Need mmio memory to check for fifo pitchlock cap. */
 363         if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
 364             !(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) &&
 365             !vmw_fifo_have_pitchlock(dev_priv)) {
 366                 ret = -ENOSYS;
 367                 DRM_ERROR("Hardware has no pitchlock\n");
 368                 goto out_err4;
 369         }
 370
 371         dev_priv->tdev = ttm_object_device_init
 372             (dev_priv->mem_global_ref.object, 12);
 373
 374         if (unlikely(dev_priv->tdev == NULL)) {
 375                 DRM_ERROR("Unable to initialize TTM object management.\n");
 376                 ret = -ENOMEM;
 377                 goto out_err4;
 378         }
 379
 380         dev->dev_private = dev_priv;
 381
 382         ret = pci_request_regions(dev->pdev, "vmwgfx probe");
 383         dev_priv->stealth = (ret != 0);
 384         if (dev_priv->stealth) {
 385                 /**
 386                  * Request at least the mmio PCI resource.
 387                  */
 388
 389                 DRM_INFO("It appears like vesafb is loaded. "
 390                          "Ignore above error if any.\n");
 391                 ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe");
 392                 if (unlikely(ret != 0)) {
 393                         DRM_ERROR("Failed reserving the SVGA MMIO resource.\n");
 394                         goto out_no_device;
 395                 }
 396         }
 397         ret = vmw_kms_init(dev_priv);
 398         if (unlikely(ret != 0))
 399                 goto out_no_kms;
 400         vmw_overlay_init(dev_priv);
 401         if (dev_priv->enable_fb) {
 402                 ret = vmw_3d_resource_inc(dev_priv);
 403                 if (unlikely(ret != 0))
 404                         goto out_no_fifo;
 405                 vmw_kms_save_vga(dev_priv);
 406                 vmw_fb_init(dev_priv);
 407                 DRM_INFO("%s", vmw_fifo_have_3d(dev_priv) ?
 408                          "Detected device 3D availability.\n" :
 409                          "Detected no device 3D availability.\n");
 410         } else {
 411                 DRM_INFO("Delayed 3D detection since we're not "
 412                          "running the device in SVGA mode yet.\n");
 413         }
 414
 415         if (dev_priv->capabilities & SVGA_CAP_IRQMASK) {
 416                 ret = drm_irq_install(dev);
 417                 if (unlikely(ret != 0)) {
 418                         DRM_ERROR("Failed installing irq: %d\n", ret);
 419                         goto out_no_irq;
 420                 }
 421         }
 422
 423         dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
 424         register_pm_notifier(&dev_priv->pm_nb);
 425
 426         return 0;
 427
 428 out_no_irq:
 429         if (dev_priv->enable_fb) {
 430                 vmw_fb_close(dev_priv);
 431                 vmw_kms_restore_vga(dev_priv);
 432                 vmw_3d_resource_dec(dev_priv);
 433         }
 434 out_no_fifo:
 435         vmw_overlay_close(dev_priv);
 436         vmw_kms_close(dev_priv);
 437 out_no_kms:
 438         if (dev_priv->stealth)
 439                 pci_release_region(dev->pdev, 2);
 440         else
 441                 pci_release_regions(dev->pdev);
 442 out_no_device:
 443         ttm_object_device_release(&dev_priv->tdev);
 444 out_err4:
 445         iounmap(dev_priv->mmio_virt);
 446 out_err3:
 447         drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start,
 448                      dev_priv->mmio_size, DRM_MTRR_WC);
 449         if (dev_priv->has_gmr)
 450                 (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
 451         (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
 452 out_err2:
 453         (void)ttm_bo_device_release(&dev_priv->bdev);
 454 out_err1:
 455         vmw_ttm_global_release(dev_priv);
 456 out_err0:
 457         idr_destroy(&dev_priv->surface_idr);
 458         idr_destroy(&dev_priv->context_idr);
 459         idr_destroy(&dev_priv->stream_idr);
 460         kfree(dev_priv);
 461         return ret;
 462 }
 463
 464 static int vmw_driver_unload(struct drm_device *dev)
 465 {
 466         struct vmw_private *dev_priv = vmw_priv(dev);
 467
 468         unregister_pm_notifier(&dev_priv->pm_nb);
 469
 470         if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
 471                 drm_irq_uninstall(dev_priv->dev);
 472         if (dev_priv->enable_fb) {
 473                 vmw_fb_close(dev_priv);
 474                 vmw_kms_restore_vga(dev_priv);
 475                 vmw_3d_resource_dec(dev_priv);
 476         }
 477         vmw_kms_close(dev_priv);
 478         vmw_overlay_close(dev_priv);
 479         if (dev_priv->stealth)
 480                 pci_release_region(dev->pdev, 2);
 481         else
 482                 pci_release_regions(dev->pdev);
 483
 484         ttm_object_device_release(&dev_priv->tdev);
 485         iounmap(dev_priv->mmio_virt);
 486         drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start,
 487                      dev_priv->mmio_size, DRM_MTRR_WC);
 488         if (dev_priv->has_gmr)
 489                 (void)ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR);
 490         (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM);
 491         (void)ttm_bo_device_release(&dev_priv->bdev);
 492         vmw_ttm_global_release(dev_priv);
 493         idr_destroy(&dev_priv->surface_idr);
 494         idr_destroy(&dev_priv->context_idr);
 495         idr_destroy(&dev_priv->stream_idr);
 496
 497         kfree(dev_priv);
 498
 499         return 0;
 500 }
 501
 502 static void vmw_postclose(struct drm_device *dev,
 503                          struct drm_file *file_priv)
 504 {
 505         struct vmw_fpriv *vmw_fp;
 506
 507         vmw_fp = vmw_fpriv(file_priv);
 508         ttm_object_file_release(&vmw_fp->tfile);
 509         if (vmw_fp->locked_master)
 510                 drm_master_put(&vmw_fp->locked_master);
 511         kfree(vmw_fp);
 512 }
 513
 514 static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
 515 {
 516         struct vmw_private *dev_priv = vmw_priv(dev);
 517         struct vmw_fpriv *vmw_fp;
 518         int ret = -ENOMEM;
 519
 520         vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL);
 521         if (unlikely(vmw_fp == NULL))
 522                 return ret;
 523
 524         vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev, 10);
 525         if (unlikely(vmw_fp->tfile == NULL))
 526                 goto out_no_tfile;
 527
 528         file_priv->driver_priv = vmw_fp;
 529
 530         if (unlikely(dev_priv->bdev.dev_mapping == NULL))
 531                 dev_priv->bdev.dev_mapping =
 532                         file_priv->filp->f_path.dentry->d_inode->i_mapping;
 533
 534         return 0;
 535
 536 out_no_tfile:
 537         kfree(vmw_fp);
 538         return ret;
 539 }
 540
 541 static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd,
 542                                unsigned long arg)
 543 {
 544         struct drm_file *file_priv = filp->private_data;
 545         struct drm_device *dev = file_priv->minor->dev;
 546         unsigned int nr = DRM_IOCTL_NR(cmd);
 547
 548         /*
 549          * Do extra checking on driver private ioctls.
 550          */
 551
 552         if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
 553             && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
 554                 struct drm_ioctl_desc *ioctl =
 555                     &vmw_ioctls[nr - DRM_COMMAND_BASE];
 556
 557                 if (unlikely(ioctl->cmd_drv != cmd)) {
 558                         DRM_ERROR("Invalid command format, ioctl %d\n",
 559                                   nr - DRM_COMMAND_BASE);
 560                         return -EINVAL;
 561                 }
 562         }
 563
 564         return drm_ioctl(filp, cmd, arg);
 565 }
 566
 567 static int vmw_firstopen(struct drm_device *dev)
 568 {
 569         struct vmw_private *dev_priv = vmw_priv(dev);
 570         dev_priv->is_opened = true;
 571
 572         return 0;
 573 }
 574
 575 static void vmw_lastclose(struct drm_device *dev)
 576 {
 577         struct vmw_private *dev_priv = vmw_priv(dev);
 578         struct drm_crtc *crtc;
 579         struct drm_mode_set set;
 580         int ret;
 581
 582         /**
 583          * Do nothing on the lastclose call from drm_unload.
 584          */
 585
 586         if (!dev_priv->is_opened)
 587                 return;
 588
 589         dev_priv->is_opened = false;
 590         set.x = 0;
 591         set.y = 0;
 592         set.fb = NULL;
 593         set.mode = NULL;
 594         set.connectors = NULL;
 595         set.num_connectors = 0;
 596
 597         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 598                 set.crtc = crtc;
 599                 ret = crtc->funcs->set_config(&set);
 600                 WARN_ON(ret != 0);
 601         }
 602
 603 }
 604
 605 static void vmw_master_init(struct vmw_master *vmaster)
 606 {
 607         ttm_lock_init(&vmaster->lock);
 608         INIT_LIST_HEAD(&vmaster->fb_surf);
 609         mutex_init(&vmaster->fb_surf_mutex);
 610 }
 611
 612 static int vmw_master_create(struct drm_device *dev,
 613                              struct drm_master *master)
 614 {
 615         struct vmw_master *vmaster;
 616
 617         vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL);
 618         if (unlikely(vmaster == NULL))
 619                 return -ENOMEM;
 620
 621         vmw_master_init(vmaster);
 622         ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
 623         master->driver_priv = vmaster;
 624
 625         return 0;
 626 }
 627
 628 static void vmw_master_destroy(struct drm_device *dev,
 629                                struct drm_master *master)
 630 {
 631         struct vmw_master *vmaster = vmw_master(master);
 632
 633         master->driver_priv = NULL;
 634         kfree(vmaster);
 635 }
 636
 637
 638 static int vmw_master_set(struct drm_device *dev,
 639                           struct drm_file *file_priv,
 640                           bool from_open)
 641 {
 642         struct vmw_private *dev_priv = vmw_priv(dev);
 643         struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
 644         struct vmw_master *active = dev_priv->active_master;
 645         struct vmw_master *vmaster = vmw_master(file_priv->master);
 646         int ret = 0;
 647
 648         if (!dev_priv->enable_fb) {
 649                 ret = vmw_3d_resource_inc(dev_priv);
 650                 if (unlikely(ret != 0))
 651                         return ret;
 652                 vmw_kms_save_vga(dev_priv);
 653                 mutex_lock(&dev_priv->hw_mutex);
 654                 vmw_write(dev_priv, SVGA_REG_TRACES, 0);
 655                 mutex_unlock(&dev_priv->hw_mutex);
 656         }
 657
 658         if (active) {
 659                 BUG_ON(active != &dev_priv->fbdev_master);
 660                 ret = ttm_vt_lock(&active->lock, false, vmw_fp->tfile);
 661                 if (unlikely(ret != 0))
 662                         goto out_no_active_lock;
 663
 664                 ttm_lock_set_kill(&active->lock, true, SIGTERM);
 665                 ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
 666                 if (unlikely(ret != 0)) {
 667                         DRM_ERROR("Unable to clean VRAM on "
 668                                   "master drop.\n");
 669                 }
 670
 671                 dev_priv->active_master = NULL;
 672         }
 673
 674         ttm_lock_set_kill(&vmaster->lock, false, SIGTERM);
 675         if (!from_open) {
 676                 ttm_vt_unlock(&vmaster->lock);
 677                 BUG_ON(vmw_fp->locked_master != file_priv->master);
 678                 drm_master_put(&vmw_fp->locked_master);
 679         }
 680
 681         dev_priv->active_master = vmaster;
 682
 683         return 0;
 684
 685 out_no_active_lock:
 686         if (!dev_priv->enable_fb) {
 687                 mutex_lock(&dev_priv->hw_mutex);
 688                 vmw_write(dev_priv, SVGA_REG_TRACES, 1);
 689                 mutex_unlock(&dev_priv->hw_mutex);
 690                 vmw_kms_restore_vga(dev_priv);
 691                 vmw_3d_resource_dec(dev_priv);
 692         }
 693         return ret;
 694 }
 695
 696 static void vmw_master_drop(struct drm_device *dev,
 697                             struct drm_file *file_priv,
 698                             bool from_release)
 699 {
 700         struct vmw_private *dev_priv = vmw_priv(dev);
 701         struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
 702         struct vmw_master *vmaster = vmw_master(file_priv->master);
 703         int ret;
 704
 705         /**
 706          * Make sure the master doesn't disappear while we have
 707          * it locked.
 708          */
 709
 710         vmw_fp->locked_master = drm_master_get(file_priv->master);
 711         ret = ttm_vt_lock(&vmaster->lock, false, vmw_fp->tfile);
 712         vmw_kms_idle_workqueues(vmaster);
 713
 714         if (unlikely((ret != 0))) {
 715                 DRM_ERROR("Unable to lock TTM at VT switch.\n");
 716                 drm_master_put(&vmw_fp->locked_master);
 717         }
 718
 719         ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
 720
 721         if (!dev_priv->enable_fb) {
 722                 ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
 723                 if (unlikely(ret != 0))
 724                         DRM_ERROR("Unable to clean VRAM on master drop.\n");
 725                 mutex_lock(&dev_priv->hw_mutex);
 726                 vmw_write(dev_priv, SVGA_REG_TRACES, 1);
 727                 mutex_unlock(&dev_priv->hw_mutex);
 728                 vmw_kms_restore_vga(dev_priv);
 729                 vmw_3d_resource_dec(dev_priv);
 730         }
 731
 732         dev_priv->active_master = &dev_priv->fbdev_master;
 733         ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
 734         ttm_vt_unlock(&dev_priv->fbdev_master.lock);
 735
 736         if (dev_priv->enable_fb)
 737                 vmw_fb_on(dev_priv);
 738 }
 739
 740
 741 static void vmw_remove(struct pci_dev *pdev)
 742 {
 743         struct drm_device *dev = pci_get_drvdata(pdev);
 744
 745         drm_put_dev(dev);
 746 }
 747
 748 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
 749                               void *ptr)
 750 {
 751         struct vmw_private *dev_priv =
 752                 container_of(nb, struct vmw_private, pm_nb);
 753         struct vmw_master *vmaster = dev_priv->active_master;
 754
 755         switch (val) {
 756         case PM_HIBERNATION_PREPARE:
 757         case PM_SUSPEND_PREPARE:
 758                 ttm_suspend_lock(&vmaster->lock);
 759
 760                 /**
 761                  * This empties VRAM and unbinds all GMR bindings.
 762                  * Buffer contents is moved to swappable memory.
 763                  */
 764                 ttm_bo_swapout_all(&dev_priv->bdev);
 765
 766                 break;
 767         case PM_POST_HIBERNATION:
 768         case PM_POST_SUSPEND:
 769         case PM_POST_RESTORE:
 770                 ttm_suspend_unlock(&vmaster->lock);
 771
 772                 break;
 773         case PM_RESTORE_PREPARE:
 774                 break;
 775         default:
 776                 break;
 777         }
 778         return 0;
 779 }
 780
 781 /**
 782  * These might not be needed with the virtual SVGA device.
 783  */
 784
 785 static int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 786 {
 787         struct drm_device *dev = pci_get_drvdata(pdev);
 788         struct vmw_private *dev_priv = vmw_priv(dev);
 789
 790         if (dev_priv->num_3d_resources != 0) {
 791                 DRM_INFO("Can't suspend or hibernate "
 792                          "while 3D resources are active.\n");
 793                 return -EBUSY;
 794         }
 795
 796         pci_save_state(pdev);
 797         pci_disable_device(pdev);
 798         pci_set_power_state(pdev, PCI_D3hot);
 799         return 0;
 800 }
 801
 802 static int vmw_pci_resume(struct pci_dev *pdev)
 803 {
 804         pci_set_power_state(pdev, PCI_D0);
 805         pci_restore_state(pdev);
 806         return pci_enable_device(pdev);
 807 }
 808
 809 static int vmw_pm_suspend(struct device *kdev)
 810 {
 811         struct pci_dev *pdev = to_pci_dev(kdev);
 812         struct pm_message dummy;
 813
 814         dummy.event = 0;
 815
 816         return vmw_pci_suspend(pdev, dummy);
 817 }
 818
 819 static int vmw_pm_resume(struct device *kdev)
 820 {
 821         struct pci_dev *pdev = to_pci_dev(kdev);
 822
 823         return vmw_pci_resume(pdev);
 824 }
 825
 826 static int vmw_pm_prepare(struct device *kdev)
 827 {
 828         struct pci_dev *pdev = to_pci_dev(kdev);
 829         struct drm_device *dev = pci_get_drvdata(pdev);
 830         struct vmw_private *dev_priv = vmw_priv(dev);
 831
 832         /**
 833          * Release 3d reference held by fbdev and potentially
 834          * stop fifo.
 835          */
 836         dev_priv->suspended = true;
 837         if (dev_priv->enable_fb)
 838                 vmw_3d_resource_dec(dev_priv);
 839
 840         if (dev_priv->num_3d_resources != 0) {
 841
 842                 DRM_INFO("Can't suspend or hibernate "
 843                          "while 3D resources are active.\n");
 844
 845                 if (dev_priv->enable_fb)
 846                         vmw_3d_resource_inc(dev_priv);
 847                 dev_priv->suspended = false;
 848                 return -EBUSY;
 849         }
 850
 851         return 0;
 852 }
 853
 854 static void vmw_pm_complete(struct device *kdev)
 855 {
 856         struct pci_dev *pdev = to_pci_dev(kdev);
 857         struct drm_device *dev = pci_get_drvdata(pdev);
 858         struct vmw_private *dev_priv = vmw_priv(dev);
 859
 860         /**
 861          * Reclaim 3d reference held by fbdev and potentially
 862          * start fifo.
 863          */
 864         if (dev_priv->enable_fb)
 865                 vmw_3d_resource_inc(dev_priv);
 866
 867         dev_priv->suspended = false;
 868 }
 869
 870 static const struct dev_pm_ops vmw_pm_ops = {
 871         .prepare = vmw_pm_prepare,
 872         .complete = vmw_pm_complete,
 873         .suspend = vmw_pm_suspend,
 874         .resume = vmw_pm_resume,
 875 };
 876
 877 static struct drm_driver driver = {
 878         .driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
 879         DRIVER_MODESET,
 880         .load = vmw_driver_load,
 881         .unload = vmw_driver_unload,
 882         .firstopen = vmw_firstopen,
 883         .lastclose = vmw_lastclose,
 884         .irq_preinstall = vmw_irq_preinstall,
 885         .irq_postinstall = vmw_irq_postinstall,
 886         .irq_uninstall = vmw_irq_uninstall,
 887         .irq_handler = vmw_irq_handler,
 888         .get_vblank_counter = vmw_get_vblank_counter,
 889         .reclaim_buffers_locked = NULL,
 890         .ioctls = vmw_ioctls,
 891         .num_ioctls = DRM_ARRAY_SIZE(vmw_ioctls),
 892         .dma_quiescent = NULL,  /*vmw_dma_quiescent, */
 893         .master_create = vmw_master_create,
 894         .master_destroy = vmw_master_destroy,
 895         .master_set = vmw_master_set,
 896         .master_drop = vmw_master_drop,
 897         .open = vmw_driver_open,
 898         .postclose = vmw_postclose,
 899         .fops = {
 900                  .owner = THIS_MODULE,
 901                  .open = drm_open,
 902                  .release = drm_release,
 903                  .unlocked_ioctl = vmw_unlocked_ioctl,
 904                  .mmap = vmw_mmap,
 905                  .poll = drm_poll,
 906                  .fasync = drm_fasync,
 907 #if defined(CONFIG_COMPAT)
 908                  .compat_ioctl = drm_compat_ioctl,
 909 #endif
 910                  .llseek = noop_llseek,
 911         },
 912         .name = VMWGFX_DRIVER_NAME,
 913         .desc = VMWGFX_DRIVER_DESC,
 914         .date = VMWGFX_DRIVER_DATE,
 915         .major = VMWGFX_DRIVER_MAJOR,
 916         .minor = VMWGFX_DRIVER_MINOR,
 917         .patchlevel = VMWGFX_DRIVER_PATCHLEVEL
 918 };
 919
 920 static struct pci_driver vmw_pci_driver = {
 921         .name = VMWGFX_DRIVER_NAME,
 922         .id_table = vmw_pci_id_list,
 923         .probe = vmw_probe,
 924         .remove = vmw_remove,
 925         .driver = {
 926                 .pm = &vmw_pm_ops
 927         }
 928 };
 929
 930 static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 931 {
 932         return drm_get_pci_dev(pdev, ent, &driver);
 933 }
 934
 935 static int __init vmwgfx_init(void)
 936 {
 937         int ret;
 938         ret = drm_pci_init(&driver, &vmw_pci_driver);
 939         if (ret)
 940                 DRM_ERROR("Failed initializing DRM.\n");
 941         return ret;
 942 }
 943
 944 static void __exit vmwgfx_exit(void)
 945 {
 946         drm_pci_exit(&driver, &vmw_pci_driver);
 947 }
 948
 949 module_init(vmwgfx_init);
 950 module_exit(vmwgfx_exit);
 951
 952 MODULE_AUTHOR("VMware Inc. and others");
 953 MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device");
 954 MODULE_LICENSE("GPL and additional rights");
 955 MODULE_VERSION(__stringify(VMWGFX_DRIVER_MAJOR) "."
 956                __stringify(VMWGFX_DRIVER_MINOR) "."
 957                __stringify(VMWGFX_DRIVER_PATCHLEVEL) "."
 958                "0");