drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

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