drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

   1 // SPDX-License-Identifier: GPL-2.0 OR MIT
   2 /**************************************************************************
   3  *
   4  * Copyright 2009-2016 VMware, Inc., Palo Alto, CA., USA
   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 <linux/console.h>
  29 #include <linux/dma-mapping.h>
  30 #include <linux/module.h>
  31 #include <linux/pci.h>
  32 #include <linux/mem_encrypt.h>
  33
  34 #include <drm/drm_drv.h>
  35 #include <drm/drm_ioctl.h>
  36 #include <drm/drm_sysfs.h>
  37 #include <drm/ttm/ttm_bo_driver.h>
  38 #include <drm/ttm/ttm_module.h>
  39 #include <drm/ttm/ttm_placement.h>
  40
  41 #include "ttm_object.h"
  42 #include "vmwgfx_binding.h"
  43 #include "vmwgfx_drv.h"
  44
  45 #define VMWGFX_DRIVER_DESC "Linux drm driver for VMware graphics devices"
  46 #define VMWGFX_CHIP_SVGAII 0
  47 #define VMW_FB_RESERVATION 0
  48
  49 #define VMW_MIN_INITIAL_WIDTH 800
  50 #define VMW_MIN_INITIAL_HEIGHT 600
  51
  52 #ifndef VMWGFX_GIT_VERSION
  53 #define VMWGFX_GIT_VERSION "Unknown"
  54 #endif
  55
  56 #define VMWGFX_REPO "In Tree"
  57
  58 #define VMWGFX_VALIDATION_MEM_GRAN (16*PAGE_SIZE)
  59
  60
  61 /**
  62  * Fully encoded drm commands. Might move to vmw_drm.h
  63  */
  64
  65 #define DRM_IOCTL_VMW_GET_PARAM                                 \
  66         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GET_PARAM,          \
  67                  struct drm_vmw_getparam_arg)
  68 #define DRM_IOCTL_VMW_ALLOC_DMABUF                              \
  69         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_ALLOC_DMABUF,       \
  70                 union drm_vmw_alloc_dmabuf_arg)
  71 #define DRM_IOCTL_VMW_UNREF_DMABUF                              \
  72         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_DMABUF,        \
  73                 struct drm_vmw_unref_dmabuf_arg)
  74 #define DRM_IOCTL_VMW_CURSOR_BYPASS                             \
  75         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CURSOR_BYPASS,       \
  76                  struct drm_vmw_cursor_bypass_arg)
  77
  78 #define DRM_IOCTL_VMW_CONTROL_STREAM                            \
  79         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CONTROL_STREAM,      \
  80                  struct drm_vmw_control_stream_arg)
  81 #define DRM_IOCTL_VMW_CLAIM_STREAM                              \
  82         DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CLAIM_STREAM,        \
  83                  struct drm_vmw_stream_arg)
  84 #define DRM_IOCTL_VMW_UNREF_STREAM                              \
  85         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_STREAM,        \
  86                  struct drm_vmw_stream_arg)
  87
  88 #define DRM_IOCTL_VMW_CREATE_CONTEXT                            \
  89         DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CREATE_CONTEXT,      \
  90                 struct drm_vmw_context_arg)
  91 #define DRM_IOCTL_VMW_UNREF_CONTEXT                             \
  92         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_CONTEXT,       \
  93                 struct drm_vmw_context_arg)
  94 #define DRM_IOCTL_VMW_CREATE_SURFACE                            \
  95         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SURFACE,     \
  96                  union drm_vmw_surface_create_arg)
  97 #define DRM_IOCTL_VMW_UNREF_SURFACE                             \
  98         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SURFACE,       \
  99                  struct drm_vmw_surface_arg)
 100 #define DRM_IOCTL_VMW_REF_SURFACE                               \
 101         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_REF_SURFACE,        \
 102                  union drm_vmw_surface_reference_arg)
 103 #define DRM_IOCTL_VMW_EXECBUF                                   \
 104         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_EXECBUF,             \
 105                 struct drm_vmw_execbuf_arg)
 106 #define DRM_IOCTL_VMW_GET_3D_CAP                                \
 107         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_GET_3D_CAP,          \
 108                  struct drm_vmw_get_3d_cap_arg)
 109 #define DRM_IOCTL_VMW_FENCE_WAIT                                \
 110         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_WAIT,         \
 111                  struct drm_vmw_fence_wait_arg)
 112 #define DRM_IOCTL_VMW_FENCE_SIGNALED                            \
 113         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_SIGNALED,     \
 114                  struct drm_vmw_fence_signaled_arg)
 115 #define DRM_IOCTL_VMW_FENCE_UNREF                               \
 116         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_UNREF,         \
 117                  struct drm_vmw_fence_arg)
 118 #define DRM_IOCTL_VMW_FENCE_EVENT                               \
 119         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_EVENT,         \
 120                  struct drm_vmw_fence_event_arg)
 121 #define DRM_IOCTL_VMW_PRESENT                                   \
 122         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT,             \
 123                  struct drm_vmw_present_arg)
 124 #define DRM_IOCTL_VMW_PRESENT_READBACK                          \
 125         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT_READBACK,    \
 126                  struct drm_vmw_present_readback_arg)
 127 #define DRM_IOCTL_VMW_UPDATE_LAYOUT                             \
 128         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT,       \
 129                  struct drm_vmw_update_layout_arg)
 130 #define DRM_IOCTL_VMW_CREATE_SHADER                             \
 131         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SHADER,      \
 132                  struct drm_vmw_shader_create_arg)
 133 #define DRM_IOCTL_VMW_UNREF_SHADER                              \
 134         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SHADER,        \
 135                  struct drm_vmw_shader_arg)
 136 #define DRM_IOCTL_VMW_GB_SURFACE_CREATE                         \
 137         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_CREATE,  \
 138                  union drm_vmw_gb_surface_create_arg)
 139 #define DRM_IOCTL_VMW_GB_SURFACE_REF                            \
 140         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF,     \
 141                  union drm_vmw_gb_surface_reference_arg)
 142 #define DRM_IOCTL_VMW_SYNCCPU                                   \
 143         DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_SYNCCPU,             \
 144                  struct drm_vmw_synccpu_arg)
 145 #define DRM_IOCTL_VMW_CREATE_EXTENDED_CONTEXT                   \
 146         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_EXTENDED_CONTEXT,    \
 147                 struct drm_vmw_context_arg)
 148 #define DRM_IOCTL_VMW_GB_SURFACE_CREATE_EXT                             \
 149         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_CREATE_EXT,      \
 150                 union drm_vmw_gb_surface_create_ext_arg)
 151 #define DRM_IOCTL_VMW_GB_SURFACE_REF_EXT                                \
 152         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF_EXT,         \
 153                 union drm_vmw_gb_surface_reference_ext_arg)
 154 #define DRM_IOCTL_VMW_MSG                                               \
 155         DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_MSG,                        \
 156                 struct drm_vmw_msg_arg)
 157
 158 /**
 159  * The core DRM version of this macro doesn't account for
 160  * DRM_COMMAND_BASE.
 161  */
 162
 163 #define VMW_IOCTL_DEF(ioctl, func, flags) \
 164   [DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = {DRM_IOCTL_##ioctl, flags, func}
 165
 166 /**
 167  * Ioctl definitions.
 168  */
 169
 170 static const struct drm_ioctl_desc vmw_ioctls[] = {
 171         VMW_IOCTL_DEF(VMW_GET_PARAM, vmw_getparam_ioctl,
 172                       DRM_RENDER_ALLOW),
 173         VMW_IOCTL_DEF(VMW_ALLOC_DMABUF, vmw_bo_alloc_ioctl,
 174                       DRM_RENDER_ALLOW),
 175         VMW_IOCTL_DEF(VMW_UNREF_DMABUF, vmw_bo_unref_ioctl,
 176                       DRM_RENDER_ALLOW),
 177         VMW_IOCTL_DEF(VMW_CURSOR_BYPASS,
 178                       vmw_kms_cursor_bypass_ioctl,
 179                       DRM_MASTER),
 180
 181         VMW_IOCTL_DEF(VMW_CONTROL_STREAM, vmw_overlay_ioctl,
 182                       DRM_MASTER),
 183         VMW_IOCTL_DEF(VMW_CLAIM_STREAM, vmw_stream_claim_ioctl,
 184                       DRM_MASTER),
 185         VMW_IOCTL_DEF(VMW_UNREF_STREAM, vmw_stream_unref_ioctl,
 186                       DRM_MASTER),
 187
 188         VMW_IOCTL_DEF(VMW_CREATE_CONTEXT, vmw_context_define_ioctl,
 189                       DRM_RENDER_ALLOW),
 190         VMW_IOCTL_DEF(VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl,
 191                       DRM_RENDER_ALLOW),
 192         VMW_IOCTL_DEF(VMW_CREATE_SURFACE, vmw_surface_define_ioctl,
 193                       DRM_RENDER_ALLOW),
 194         VMW_IOCTL_DEF(VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl,
 195                       DRM_RENDER_ALLOW),
 196         VMW_IOCTL_DEF(VMW_REF_SURFACE, vmw_surface_reference_ioctl,
 197                       DRM_RENDER_ALLOW),
 198         VMW_IOCTL_DEF(VMW_EXECBUF, vmw_execbuf_ioctl,
 199                       DRM_RENDER_ALLOW),
 200         VMW_IOCTL_DEF(VMW_FENCE_WAIT, vmw_fence_obj_wait_ioctl,
 201                       DRM_RENDER_ALLOW),
 202         VMW_IOCTL_DEF(VMW_FENCE_SIGNALED,
 203                       vmw_fence_obj_signaled_ioctl,
 204                       DRM_RENDER_ALLOW),
 205         VMW_IOCTL_DEF(VMW_FENCE_UNREF, vmw_fence_obj_unref_ioctl,
 206                       DRM_RENDER_ALLOW),
 207         VMW_IOCTL_DEF(VMW_FENCE_EVENT, vmw_fence_event_ioctl,
 208                       DRM_RENDER_ALLOW),
 209         VMW_IOCTL_DEF(VMW_GET_3D_CAP, vmw_get_cap_3d_ioctl,
 210                       DRM_RENDER_ALLOW),
 211
 212         /* these allow direct access to the framebuffers mark as master only */
 213         VMW_IOCTL_DEF(VMW_PRESENT, vmw_present_ioctl,
 214                       DRM_MASTER | DRM_AUTH),
 215         VMW_IOCTL_DEF(VMW_PRESENT_READBACK,
 216                       vmw_present_readback_ioctl,
 217                       DRM_MASTER | DRM_AUTH),
 218         /*
 219          * The permissions of the below ioctl are overridden in
 220          * vmw_generic_ioctl(). We require either
 221          * DRM_MASTER or capable(CAP_SYS_ADMIN).
 222          */
 223         VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT,
 224                       vmw_kms_update_layout_ioctl,
 225                       DRM_RENDER_ALLOW),
 226         VMW_IOCTL_DEF(VMW_CREATE_SHADER,
 227                       vmw_shader_define_ioctl,
 228                       DRM_RENDER_ALLOW),
 229         VMW_IOCTL_DEF(VMW_UNREF_SHADER,
 230                       vmw_shader_destroy_ioctl,
 231                       DRM_RENDER_ALLOW),
 232         VMW_IOCTL_DEF(VMW_GB_SURFACE_CREATE,
 233                       vmw_gb_surface_define_ioctl,
 234                       DRM_RENDER_ALLOW),
 235         VMW_IOCTL_DEF(VMW_GB_SURFACE_REF,
 236                       vmw_gb_surface_reference_ioctl,
 237                       DRM_RENDER_ALLOW),
 238         VMW_IOCTL_DEF(VMW_SYNCCPU,
 239                       vmw_user_bo_synccpu_ioctl,
 240                       DRM_RENDER_ALLOW),
 241         VMW_IOCTL_DEF(VMW_CREATE_EXTENDED_CONTEXT,
 242                       vmw_extended_context_define_ioctl,
 243                       DRM_RENDER_ALLOW),
 244         VMW_IOCTL_DEF(VMW_GB_SURFACE_CREATE_EXT,
 245                       vmw_gb_surface_define_ext_ioctl,
 246                       DRM_RENDER_ALLOW),
 247         VMW_IOCTL_DEF(VMW_GB_SURFACE_REF_EXT,
 248                       vmw_gb_surface_reference_ext_ioctl,
 249                       DRM_RENDER_ALLOW),
 250         VMW_IOCTL_DEF(VMW_MSG,
 251                       vmw_msg_ioctl,
 252                       DRM_RENDER_ALLOW),
 253 };
 254
 255 static const struct pci_device_id vmw_pci_id_list[] = {
 256         {0x15ad, 0x0405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VMWGFX_CHIP_SVGAII},
 257         {0, 0, 0}
 258 };
 259 MODULE_DEVICE_TABLE(pci, vmw_pci_id_list);
 260
 261 static int enable_fbdev = IS_ENABLED(CONFIG_DRM_VMWGFX_FBCON);
 262 static int vmw_force_iommu;
 263 static int vmw_restrict_iommu;
 264 static int vmw_force_coherent;
 265 static int vmw_restrict_dma_mask;
 266 static int vmw_assume_16bpp;
 267
 268 static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
 269 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
 270                               void *ptr);
 271
 272 MODULE_PARM_DESC(enable_fbdev, "Enable vmwgfx fbdev");
 273 module_param_named(enable_fbdev, enable_fbdev, int, 0600);
 274 MODULE_PARM_DESC(force_dma_api, "Force using the DMA API for TTM pages");
 275 module_param_named(force_dma_api, vmw_force_iommu, int, 0600);
 276 MODULE_PARM_DESC(restrict_iommu, "Try to limit IOMMU usage for TTM pages");
 277 module_param_named(restrict_iommu, vmw_restrict_iommu, int, 0600);
 278 MODULE_PARM_DESC(force_coherent, "Force coherent TTM pages");
 279 module_param_named(force_coherent, vmw_force_coherent, int, 0600);
 280 MODULE_PARM_DESC(restrict_dma_mask, "Restrict DMA mask to 44 bits with IOMMU");
 281 module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, 0600);
 282 MODULE_PARM_DESC(assume_16bpp, "Assume 16-bpp when filtering modes");
 283 module_param_named(assume_16bpp, vmw_assume_16bpp, int, 0600);
 284
 285
 286 static void vmw_print_capabilities2(uint32_t capabilities2)
 287 {
 288         DRM_INFO("Capabilities2:\n");
 289         if (capabilities2 & SVGA_CAP2_GROW_OTABLE)
 290                 DRM_INFO("  Grow oTable.\n");
 291         if (capabilities2 & SVGA_CAP2_INTRA_SURFACE_COPY)
 292                 DRM_INFO("  IntraSurface copy.\n");
 293         if (capabilities2 & SVGA_CAP2_DX3)
 294                 DRM_INFO("  DX3.\n");
 295 }
 296
 297 static void vmw_print_capabilities(uint32_t capabilities)
 298 {
 299         DRM_INFO("Capabilities:\n");
 300         if (capabilities & SVGA_CAP_RECT_COPY)
 301                 DRM_INFO("  Rect copy.\n");
 302         if (capabilities & SVGA_CAP_CURSOR)
 303                 DRM_INFO("  Cursor.\n");
 304         if (capabilities & SVGA_CAP_CURSOR_BYPASS)
 305                 DRM_INFO("  Cursor bypass.\n");
 306         if (capabilities & SVGA_CAP_CURSOR_BYPASS_2)
 307                 DRM_INFO("  Cursor bypass 2.\n");
 308         if (capabilities & SVGA_CAP_8BIT_EMULATION)
 309                 DRM_INFO("  8bit emulation.\n");
 310         if (capabilities & SVGA_CAP_ALPHA_CURSOR)
 311                 DRM_INFO("  Alpha cursor.\n");
 312         if (capabilities & SVGA_CAP_3D)
 313                 DRM_INFO("  3D.\n");
 314         if (capabilities & SVGA_CAP_EXTENDED_FIFO)
 315                 DRM_INFO("  Extended Fifo.\n");
 316         if (capabilities & SVGA_CAP_MULTIMON)
 317                 DRM_INFO("  Multimon.\n");
 318         if (capabilities & SVGA_CAP_PITCHLOCK)
 319                 DRM_INFO("  Pitchlock.\n");
 320         if (capabilities & SVGA_CAP_IRQMASK)
 321                 DRM_INFO("  Irq mask.\n");
 322         if (capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)
 323                 DRM_INFO("  Display Topology.\n");
 324         if (capabilities & SVGA_CAP_GMR)
 325                 DRM_INFO("  GMR.\n");
 326         if (capabilities & SVGA_CAP_TRACES)
 327                 DRM_INFO("  Traces.\n");
 328         if (capabilities & SVGA_CAP_GMR2)
 329                 DRM_INFO("  GMR2.\n");
 330         if (capabilities & SVGA_CAP_SCREEN_OBJECT_2)
 331                 DRM_INFO("  Screen Object 2.\n");
 332         if (capabilities & SVGA_CAP_COMMAND_BUFFERS)
 333                 DRM_INFO("  Command Buffers.\n");
 334         if (capabilities & SVGA_CAP_CMD_BUFFERS_2)
 335                 DRM_INFO("  Command Buffers 2.\n");
 336         if (capabilities & SVGA_CAP_GBOBJECTS)
 337                 DRM_INFO("  Guest Backed Resources.\n");
 338         if (capabilities & SVGA_CAP_DX)
 339                 DRM_INFO("  DX Features.\n");
 340         if (capabilities & SVGA_CAP_HP_CMD_QUEUE)
 341                 DRM_INFO("  HP Command Queue.\n");
 342 }
 343
 344 /**
 345  * vmw_dummy_query_bo_create - create a bo to hold a dummy query result
 346  *
 347  * @dev_priv: A device private structure.
 348  *
 349  * This function creates a small buffer object that holds the query
 350  * result for dummy queries emitted as query barriers.
 351  * The function will then map the first page and initialize a pending
 352  * occlusion query result structure, Finally it will unmap the buffer.
 353  * No interruptible waits are done within this function.
 354  *
 355  * Returns an error if bo creation or initialization fails.
 356  */
 357 static int vmw_dummy_query_bo_create(struct vmw_private *dev_priv)
 358 {
 359         int ret;
 360         struct vmw_buffer_object *vbo;
 361         struct ttm_bo_kmap_obj map;
 362         volatile SVGA3dQueryResult *result;
 363         bool dummy;
 364
 365         /*
 366          * Create the vbo as pinned, so that a tryreserve will
 367          * immediately succeed. This is because we're the only
 368          * user of the bo currently.
 369          */
 370         vbo = kzalloc(sizeof(*vbo), GFP_KERNEL);
 371         if (!vbo)
 372                 return -ENOMEM;
 373
 374         ret = vmw_bo_init(dev_priv, vbo, PAGE_SIZE,
 375                           &vmw_sys_placement, false, true,
 376                           &vmw_bo_bo_free);
 377         if (unlikely(ret != 0))
 378                 return ret;
 379
 380         ret = ttm_bo_reserve(&vbo->base, false, true, NULL);
 381         BUG_ON(ret != 0);
 382         vmw_bo_pin_reserved(vbo, true);
 383
 384         ret = ttm_bo_kmap(&vbo->base, 0, 1, &map);
 385         if (likely(ret == 0)) {
 386                 result = ttm_kmap_obj_virtual(&map, &dummy);
 387                 result->totalSize = sizeof(*result);
 388                 result->state = SVGA3D_QUERYSTATE_PENDING;
 389                 result->result32 = 0xff;
 390                 ttm_bo_kunmap(&map);
 391         }
 392         vmw_bo_pin_reserved(vbo, false);
 393         ttm_bo_unreserve(&vbo->base);
 394
 395         if (unlikely(ret != 0)) {
 396                 DRM_ERROR("Dummy query buffer map failed.\n");
 397                 vmw_bo_unreference(&vbo);
 398         } else
 399                 dev_priv->dummy_query_bo = vbo;
 400
 401         return ret;
 402 }
 403
 404 /**
 405  * vmw_request_device_late - Perform late device setup
 406  *
 407  * @dev_priv: Pointer to device private.
 408  *
 409  * This function performs setup of otables and enables large command
 410  * buffer submission. These tasks are split out to a separate function
 411  * because it reverts vmw_release_device_early and is intended to be used
 412  * by an error path in the hibernation code.
 413  */
 414 static int vmw_request_device_late(struct vmw_private *dev_priv)
 415 {
 416         int ret;
 417
 418         if (dev_priv->has_mob) {
 419                 ret = vmw_otables_setup(dev_priv);
 420                 if (unlikely(ret != 0)) {
 421                         DRM_ERROR("Unable to initialize "
 422                                   "guest Memory OBjects.\n");
 423                         return ret;
 424                 }
 425         }
 426
 427         if (dev_priv->cman) {
 428                 ret = vmw_cmdbuf_set_pool_size(dev_priv->cman,
 429                                                256*4096, 2*4096);
 430                 if (ret) {
 431                         struct vmw_cmdbuf_man *man = dev_priv->cman;
 432
 433                         dev_priv->cman = NULL;
 434                         vmw_cmdbuf_man_destroy(man);
 435                 }
 436         }
 437
 438         return 0;
 439 }
 440
 441 static int vmw_request_device(struct vmw_private *dev_priv)
 442 {
 443         int ret;
 444
 445         ret = vmw_fifo_init(dev_priv, &dev_priv->fifo);
 446         if (unlikely(ret != 0)) {
 447                 DRM_ERROR("Unable to initialize FIFO.\n");
 448                 return ret;
 449         }
 450         vmw_fence_fifo_up(dev_priv->fman);
 451         dev_priv->cman = vmw_cmdbuf_man_create(dev_priv);
 452         if (IS_ERR(dev_priv->cman)) {
 453                 dev_priv->cman = NULL;
 454                 dev_priv->sm_type = VMW_SM_LEGACY;
 455         }
 456
 457         ret = vmw_request_device_late(dev_priv);
 458         if (ret)
 459                 goto out_no_mob;
 460
 461         ret = vmw_dummy_query_bo_create(dev_priv);
 462         if (unlikely(ret != 0))
 463                 goto out_no_query_bo;
 464
 465         return 0;
 466
 467 out_no_query_bo:
 468         if (dev_priv->cman)
 469                 vmw_cmdbuf_remove_pool(dev_priv->cman);
 470         if (dev_priv->has_mob) {
 471                 struct ttm_resource_manager *man;
 472
 473                 man = ttm_manager_type(&dev_priv->bdev, VMW_PL_MOB);
 474                 ttm_resource_manager_evict_all(&dev_priv->bdev, man);
 475                 vmw_otables_takedown(dev_priv);
 476         }
 477         if (dev_priv->cman)
 478                 vmw_cmdbuf_man_destroy(dev_priv->cman);
 479 out_no_mob:
 480         vmw_fence_fifo_down(dev_priv->fman);
 481         vmw_fifo_release(dev_priv, &dev_priv->fifo);
 482         return ret;
 483 }
 484
 485 /**
 486  * vmw_release_device_early - Early part of fifo takedown.
 487  *
 488  * @dev_priv: Pointer to device private struct.
 489  *
 490  * This is the first part of command submission takedown, to be called before
 491  * buffer management is taken down.
 492  */
 493 static void vmw_release_device_early(struct vmw_private *dev_priv)
 494 {
 495         /*
 496          * Previous destructions should've released
 497          * the pinned bo.
 498          */
 499
 500         BUG_ON(dev_priv->pinned_bo != NULL);
 501
 502         vmw_bo_unreference(&dev_priv->dummy_query_bo);
 503         if (dev_priv->cman)
 504                 vmw_cmdbuf_remove_pool(dev_priv->cman);
 505
 506         if (dev_priv->has_mob) {
 507                 struct ttm_resource_manager *man;
 508
 509                 man = ttm_manager_type(&dev_priv->bdev, VMW_PL_MOB);
 510                 ttm_resource_manager_evict_all(&dev_priv->bdev, man);
 511                 vmw_otables_takedown(dev_priv);
 512         }
 513 }
 514
 515 /**
 516  * vmw_release_device_late - Late part of fifo takedown.
 517  *
 518  * @dev_priv: Pointer to device private struct.
 519  *
 520  * This is the last part of the command submission takedown, to be called when
 521  * command submission is no longer needed. It may wait on pending fences.
 522  */
 523 static void vmw_release_device_late(struct vmw_private *dev_priv)
 524 {
 525         vmw_fence_fifo_down(dev_priv->fman);
 526         if (dev_priv->cman)
 527                 vmw_cmdbuf_man_destroy(dev_priv->cman);
 528
 529         vmw_fifo_release(dev_priv, &dev_priv->fifo);
 530 }
 531
 532 /**
 533  * Sets the initial_[width|height] fields on the given vmw_private.
 534  *
 535  * It does so by reading SVGA_REG_[WIDTH|HEIGHT] regs and then
 536  * clamping the value to fb_max_[width|height] fields and the
 537  * VMW_MIN_INITIAL_[WIDTH|HEIGHT].
 538  * If the values appear to be invalid, set them to
 539  * VMW_MIN_INITIAL_[WIDTH|HEIGHT].
 540  */
 541 static void vmw_get_initial_size(struct vmw_private *dev_priv)
 542 {
 543         uint32_t width;
 544         uint32_t height;
 545
 546         width = vmw_read(dev_priv, SVGA_REG_WIDTH);
 547         height = vmw_read(dev_priv, SVGA_REG_HEIGHT);
 548
 549         width = max_t(uint32_t, width, VMW_MIN_INITIAL_WIDTH);
 550         height = max_t(uint32_t, height, VMW_MIN_INITIAL_HEIGHT);
 551
 552         if (width > dev_priv->fb_max_width ||
 553             height > dev_priv->fb_max_height) {
 554
 555                 /*
 556                  * This is a host error and shouldn't occur.
 557                  */
 558
 559                 width = VMW_MIN_INITIAL_WIDTH;
 560                 height = VMW_MIN_INITIAL_HEIGHT;
 561         }
 562
 563         dev_priv->initial_width = width;
 564         dev_priv->initial_height = height;
 565 }
 566
 567 /**
 568  * vmw_dma_select_mode - Determine how DMA mappings should be set up for this
 569  * system.
 570  *
 571  * @dev_priv: Pointer to a struct vmw_private
 572  *
 573  * This functions tries to determine what actions need to be taken by the
 574  * driver to make system pages visible to the device.
 575  * If this function decides that DMA is not possible, it returns -EINVAL.
 576  * The driver may then try to disable features of the device that require
 577  * DMA.
 578  */
 579 static int vmw_dma_select_mode(struct vmw_private *dev_priv)
 580 {
 581         static const char *names[vmw_dma_map_max] = {
 582                 [vmw_dma_phys] = "Using physical TTM page addresses.",
 583                 [vmw_dma_alloc_coherent] = "Using coherent TTM pages.",
 584                 [vmw_dma_map_populate] = "Caching DMA mappings.",
 585                 [vmw_dma_map_bind] = "Giving up DMA mappings early."};
 586
 587         /* TTM currently doesn't fully support SEV encryption. */
 588         if (mem_encrypt_active())
 589                 return -EINVAL;
 590
 591         if (vmw_force_coherent)
 592                 dev_priv->map_mode = vmw_dma_alloc_coherent;
 593         else if (vmw_restrict_iommu)
 594                 dev_priv->map_mode = vmw_dma_map_bind;
 595         else
 596                 dev_priv->map_mode = vmw_dma_map_populate;
 597
 598         DRM_INFO("DMA map mode: %s\n", names[dev_priv->map_mode]);
 599         return 0;
 600 }
 601
 602 /**
 603  * vmw_dma_masks - set required page- and dma masks
 604  *
 605  * @dev: Pointer to struct drm-device
 606  *
 607  * With 32-bit we can only handle 32 bit PFNs. Optionally set that
 608  * restriction also for 64-bit systems.
 609  */
 610 static int vmw_dma_masks(struct vmw_private *dev_priv)
 611 {
 612         struct drm_device *dev = dev_priv->dev;
 613         int ret = 0;
 614
 615         ret = dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(64));
 616         if (dev_priv->map_mode != vmw_dma_phys &&
 617             (sizeof(unsigned long) == 4 || vmw_restrict_dma_mask)) {
 618                 DRM_INFO("Restricting DMA addresses to 44 bits.\n");
 619                 return dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(44));
 620         }
 621
 622         return ret;
 623 }
 624
 625 static int vmw_vram_manager_init(struct vmw_private *dev_priv)
 626 {
 627         int ret;
 628 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 629         ret = vmw_thp_init(dev_priv);
 630 #else
 631         ret = ttm_range_man_init(&dev_priv->bdev, TTM_PL_VRAM, false,
 632                                  dev_priv->vram_size >> PAGE_SHIFT);
 633 #endif
 634         ttm_resource_manager_set_used(ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM), false);
 635         return ret;
 636 }
 637
 638 static void vmw_vram_manager_fini(struct vmw_private *dev_priv)
 639 {
 640 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 641         vmw_thp_fini(dev_priv);
 642 #else
 643         ttm_range_man_fini(&dev_priv->bdev, TTM_PL_VRAM);
 644 #endif
 645 }
 646
 647 static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 648 {
 649         struct vmw_private *dev_priv;
 650         int ret;
 651         uint32_t svga_id;
 652         enum vmw_res_type i;
 653         bool refuse_dma = false;
 654         char host_log[100] = {0};
 655
 656         dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
 657         if (unlikely(!dev_priv)) {
 658                 DRM_ERROR("Failed allocating a device private struct.\n");
 659                 return -ENOMEM;
 660         }
 661
 662         pci_set_master(dev->pdev);
 663
 664         dev_priv->dev = dev;
 665         dev_priv->vmw_chipset = chipset;
 666         dev_priv->last_read_seqno = (uint32_t) -100;
 667         mutex_init(&dev_priv->cmdbuf_mutex);
 668         mutex_init(&dev_priv->release_mutex);
 669         mutex_init(&dev_priv->binding_mutex);
 670         mutex_init(&dev_priv->global_kms_state_mutex);
 671         ttm_lock_init(&dev_priv->reservation_sem);
 672         spin_lock_init(&dev_priv->resource_lock);
 673         spin_lock_init(&dev_priv->hw_lock);
 674         spin_lock_init(&dev_priv->waiter_lock);
 675         spin_lock_init(&dev_priv->cap_lock);
 676         spin_lock_init(&dev_priv->svga_lock);
 677         spin_lock_init(&dev_priv->cursor_lock);
 678
 679         for (i = vmw_res_context; i < vmw_res_max; ++i) {
 680                 idr_init(&dev_priv->res_idr[i]);
 681                 INIT_LIST_HEAD(&dev_priv->res_lru[i]);
 682         }
 683
 684         init_waitqueue_head(&dev_priv->fence_queue);
 685         init_waitqueue_head(&dev_priv->fifo_queue);
 686         dev_priv->fence_queue_waiters = 0;
 687         dev_priv->fifo_queue_waiters = 0;
 688
 689         dev_priv->used_memory_size = 0;
 690
 691         dev_priv->io_start = pci_resource_start(dev->pdev, 0);
 692         dev_priv->vram_start = pci_resource_start(dev->pdev, 1);
 693         dev_priv->mmio_start = pci_resource_start(dev->pdev, 2);
 694
 695         dev_priv->assume_16bpp = !!vmw_assume_16bpp;
 696
 697         dev_priv->enable_fb = enable_fbdev;
 698
 699         vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
 700         svga_id = vmw_read(dev_priv, SVGA_REG_ID);
 701         if (svga_id != SVGA_ID_2) {
 702                 ret = -ENOSYS;
 703                 DRM_ERROR("Unsupported SVGA ID 0x%x\n", svga_id);
 704                 goto out_err0;
 705         }
 706
 707         dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES);
 708
 709         if (dev_priv->capabilities & SVGA_CAP_CAP2_REGISTER) {
 710                 dev_priv->capabilities2 = vmw_read(dev_priv, SVGA_REG_CAP2);
 711         }
 712
 713
 714         ret = vmw_dma_select_mode(dev_priv);
 715         if (unlikely(ret != 0)) {
 716                 DRM_INFO("Restricting capabilities since DMA not available.\n");
 717                 refuse_dma = true;
 718                 if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS)
 719                         DRM_INFO("Disabling 3D acceleration.\n");
 720         }
 721
 722         dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE);
 723         dev_priv->mmio_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE);
 724         dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH);
 725         dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT);
 726
 727         vmw_get_initial_size(dev_priv);
 728
 729         if (dev_priv->capabilities & SVGA_CAP_GMR2) {
 730                 dev_priv->max_gmr_ids =
 731                         vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS);
 732                 dev_priv->max_gmr_pages =
 733                         vmw_read(dev_priv, SVGA_REG_GMRS_MAX_PAGES);
 734                 dev_priv->memory_size =
 735                         vmw_read(dev_priv, SVGA_REG_MEMORY_SIZE);
 736                 dev_priv->memory_size -= dev_priv->vram_size;
 737         } else {
 738                 /*
 739                  * An arbitrary limit of 512MiB on surface
 740                  * memory. But all HWV8 hardware supports GMR2.
 741                  */
 742                 dev_priv->memory_size = 512*1024*1024;
 743         }
 744         dev_priv->max_mob_pages = 0;
 745         dev_priv->max_mob_size = 0;
 746         if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) {
 747                 uint64_t mem_size;
 748
 749                 if (dev_priv->capabilities2 & SVGA_CAP2_GB_MEMSIZE_2)
 750                         mem_size = vmw_read(dev_priv,
 751                                             SVGA_REG_GBOBJECT_MEM_SIZE_KB);
 752                 else
 753                         mem_size =
 754                                 vmw_read(dev_priv,
 755                                          SVGA_REG_SUGGESTED_GBOBJECT_MEM_SIZE_KB);
 756
 757                 /*
 758                  * Workaround for low memory 2D VMs to compensate for the
 759                  * allocation taken by fbdev
 760                  */
 761                 if (!(dev_priv->capabilities & SVGA_CAP_3D))
 762                         mem_size *= 3;
 763
 764                 dev_priv->max_mob_pages = mem_size * 1024 / PAGE_SIZE;
 765                 dev_priv->prim_bb_mem =
 766                         vmw_read(dev_priv,
 767                                  SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM);
 768                 dev_priv->max_mob_size =
 769                         vmw_read(dev_priv, SVGA_REG_MOB_MAX_SIZE);
 770                 dev_priv->stdu_max_width =
 771                         vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_WIDTH);
 772                 dev_priv->stdu_max_height =
 773                         vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_HEIGHT);
 774
 775                 vmw_write(dev_priv, SVGA_REG_DEV_CAP,
 776                           SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH);
 777                 dev_priv->texture_max_width = vmw_read(dev_priv,
 778                                                        SVGA_REG_DEV_CAP);
 779                 vmw_write(dev_priv, SVGA_REG_DEV_CAP,
 780                           SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT);
 781                 dev_priv->texture_max_height = vmw_read(dev_priv,
 782                                                         SVGA_REG_DEV_CAP);
 783         } else {
 784                 dev_priv->texture_max_width = 8192;
 785                 dev_priv->texture_max_height = 8192;
 786                 dev_priv->prim_bb_mem = dev_priv->vram_size;
 787         }
 788
 789         vmw_print_capabilities(dev_priv->capabilities);
 790         if (dev_priv->capabilities & SVGA_CAP_CAP2_REGISTER)
 791                 vmw_print_capabilities2(dev_priv->capabilities2);
 792
 793         ret = vmw_dma_masks(dev_priv);
 794         if (unlikely(ret != 0))
 795                 goto out_err0;
 796
 797         dma_set_max_seg_size(dev->dev, U32_MAX);
 798
 799         if (dev_priv->capabilities & SVGA_CAP_GMR2) {
 800                 DRM_INFO("Max GMR ids is %u\n",
 801                          (unsigned)dev_priv->max_gmr_ids);
 802                 DRM_INFO("Max number of GMR pages is %u\n",
 803                          (unsigned)dev_priv->max_gmr_pages);
 804                 DRM_INFO("Max dedicated hypervisor surface memory is %u kiB\n",
 805                          (unsigned)dev_priv->memory_size / 1024);
 806         }
 807         DRM_INFO("Maximum display memory size is %u kiB\n",
 808                  dev_priv->prim_bb_mem / 1024);
 809         DRM_INFO("VRAM at 0x%08x size is %u kiB\n",
 810                  dev_priv->vram_start, dev_priv->vram_size / 1024);
 811         DRM_INFO("MMIO at 0x%08x size is %u kiB\n",
 812                  dev_priv->mmio_start, dev_priv->mmio_size / 1024);
 813
 814         dev_priv->mmio_virt = memremap(dev_priv->mmio_start,
 815                                        dev_priv->mmio_size, MEMREMAP_WB);
 816
 817         if (unlikely(dev_priv->mmio_virt == NULL)) {
 818                 ret = -ENOMEM;
 819                 DRM_ERROR("Failed mapping MMIO.\n");
 820                 goto out_err0;
 821         }
 822
 823         /* Need mmio memory to check for fifo pitchlock cap. */
 824         if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) &&
 825             !(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) &&
 826             !vmw_fifo_have_pitchlock(dev_priv)) {
 827                 ret = -ENOSYS;
 828                 DRM_ERROR("Hardware has no pitchlock\n");
 829                 goto out_err4;
 830         }
 831
 832         dev_priv->tdev = ttm_object_device_init(&ttm_mem_glob, 12,
 833                                                 &vmw_prime_dmabuf_ops);
 834
 835         if (unlikely(dev_priv->tdev == NULL)) {
 836                 DRM_ERROR("Unable to initialize TTM object management.\n");
 837                 ret = -ENOMEM;
 838                 goto out_err4;
 839         }
 840
 841         dev->dev_private = dev_priv;
 842
 843         ret = pci_request_regions(dev->pdev, "vmwgfx probe");
 844         dev_priv->stealth = (ret != 0);
 845         if (dev_priv->stealth) {
 846                 /**
 847                  * Request at least the mmio PCI resource.
 848                  */
 849
 850                 DRM_INFO("It appears like vesafb is loaded. "
 851                          "Ignore above error if any.\n");
 852                 ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe");
 853                 if (unlikely(ret != 0)) {
 854                         DRM_ERROR("Failed reserving the SVGA MMIO resource.\n");
 855                         goto out_no_device;
 856                 }
 857         }
 858
 859         if (dev_priv->capabilities & SVGA_CAP_IRQMASK) {
 860                 ret = vmw_irq_install(dev, dev->pdev->irq);
 861                 if (ret != 0) {
 862                         DRM_ERROR("Failed installing irq: %d\n", ret);
 863                         goto out_no_irq;
 864                 }
 865         }
 866
 867         dev_priv->fman = vmw_fence_manager_init(dev_priv);
 868         if (unlikely(dev_priv->fman == NULL)) {
 869                 ret = -ENOMEM;
 870                 goto out_no_fman;
 871         }
 872
 873         drm_vma_offset_manager_init(&dev_priv->vma_manager,
 874                                     DRM_FILE_PAGE_OFFSET_START,
 875                                     DRM_FILE_PAGE_OFFSET_SIZE);
 876         ret = ttm_bo_device_init(&dev_priv->bdev, &vmw_bo_driver,
 877                                  dev_priv->dev->dev,
 878                                  dev->anon_inode->i_mapping,
 879                                  &dev_priv->vma_manager,
 880                                  dev_priv->map_mode == vmw_dma_alloc_coherent,
 881                                  false);
 882         if (unlikely(ret != 0)) {
 883                 DRM_ERROR("Failed initializing TTM buffer object driver.\n");
 884                 goto out_no_bdev;
 885         }
 886
 887         /*
 888          * Enable VRAM, but initially don't use it until SVGA is enabled and
 889          * unhidden.
 890          */
 891
 892         ret = vmw_vram_manager_init(dev_priv);
 893         if (unlikely(ret != 0)) {
 894                 DRM_ERROR("Failed initializing memory manager for VRAM.\n");
 895                 goto out_no_vram;
 896         }
 897
 898         /*
 899          * "Guest Memory Regions" is an aperture like feature with
 900          *  one slot per bo. There is an upper limit of the number of
 901          *  slots as well as the bo size.
 902          */
 903         dev_priv->has_gmr = true;
 904         /* TODO: This is most likely not correct */
 905         if (((dev_priv->capabilities & (SVGA_CAP_GMR | SVGA_CAP_GMR2)) == 0) ||
 906             refuse_dma ||
 907             vmw_gmrid_man_init(dev_priv, VMW_PL_GMR) != 0) {
 908                 DRM_INFO("No GMR memory available. "
 909                          "Graphics memory resources are very limited.\n");
 910                 dev_priv->has_gmr = false;
 911         }
 912
 913         if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS && !refuse_dma) {
 914                 dev_priv->has_mob = true;
 915
 916                 if (vmw_gmrid_man_init(dev_priv, VMW_PL_MOB) != 0) {
 917                         DRM_INFO("No MOB memory available. "
 918                                  "3D will be disabled.\n");
 919                         dev_priv->has_mob = false;
 920                 }
 921         }
 922
 923         if (dev_priv->has_mob && (dev_priv->capabilities & SVGA_CAP_DX)) {
 924                 spin_lock(&dev_priv->cap_lock);
 925                 vmw_write(dev_priv, SVGA_REG_DEV_CAP, SVGA3D_DEVCAP_DXCONTEXT);
 926                 if (vmw_read(dev_priv, SVGA_REG_DEV_CAP))
 927                         dev_priv->sm_type = VMW_SM_4;
 928                 spin_unlock(&dev_priv->cap_lock);
 929         }
 930
 931         vmw_validation_mem_init_ttm(dev_priv, VMWGFX_VALIDATION_MEM_GRAN);
 932
 933         /* SVGA_CAP2_DX2 (DefineGBSurface_v3) is needed for SM4_1 support */
 934         if (has_sm4_context(dev_priv) &&
 935             (dev_priv->capabilities2 & SVGA_CAP2_DX2)) {
 936                 vmw_write(dev_priv, SVGA_REG_DEV_CAP, SVGA3D_DEVCAP_SM41);
 937
 938                 if (vmw_read(dev_priv, SVGA_REG_DEV_CAP))
 939                         dev_priv->sm_type = VMW_SM_4_1;
 940
 941                 if (has_sm4_1_context(dev_priv) &&
 942                     (dev_priv->capabilities2 & SVGA_CAP2_DX3)) {
 943                         vmw_write(dev_priv, SVGA_REG_DEV_CAP, SVGA3D_DEVCAP_SM5);
 944                         if (vmw_read(dev_priv, SVGA_REG_DEV_CAP))
 945                                 dev_priv->sm_type = VMW_SM_5;
 946                 }
 947         }
 948
 949         ret = vmw_kms_init(dev_priv);
 950         if (unlikely(ret != 0))
 951                 goto out_no_kms;
 952         vmw_overlay_init(dev_priv);
 953
 954         ret = vmw_request_device(dev_priv);
 955         if (ret)
 956                 goto out_no_fifo;
 957
 958         DRM_INFO("Atomic: %s\n", (dev->driver->driver_features & DRIVER_ATOMIC)
 959                  ? "yes." : "no.");
 960         if (dev_priv->sm_type == VMW_SM_5)
 961                 DRM_INFO("SM5 support available.\n");
 962         if (dev_priv->sm_type == VMW_SM_4_1)
 963                 DRM_INFO("SM4_1 support available.\n");
 964         if (dev_priv->sm_type == VMW_SM_4)
 965                 DRM_INFO("SM4 support available.\n");
 966
 967         snprintf(host_log, sizeof(host_log), "vmwgfx: %s-%s",
 968                 VMWGFX_REPO, VMWGFX_GIT_VERSION);
 969         vmw_host_log(host_log);
 970
 971         memset(host_log, 0, sizeof(host_log));
 972         snprintf(host_log, sizeof(host_log), "vmwgfx: Module Version: %d.%d.%d",
 973                 VMWGFX_DRIVER_MAJOR, VMWGFX_DRIVER_MINOR,
 974                 VMWGFX_DRIVER_PATCHLEVEL);
 975         vmw_host_log(host_log);
 976
 977         if (dev_priv->enable_fb) {
 978                 vmw_fifo_resource_inc(dev_priv);
 979                 vmw_svga_enable(dev_priv);
 980                 vmw_fb_init(dev_priv);
 981         }
 982
 983         dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
 984         register_pm_notifier(&dev_priv->pm_nb);
 985
 986         return 0;
 987
 988 out_no_fifo:
 989         vmw_overlay_close(dev_priv);
 990         vmw_kms_close(dev_priv);
 991 out_no_kms:
 992         if (dev_priv->has_mob)
 993                 vmw_gmrid_man_fini(dev_priv, VMW_PL_MOB);
 994         if (dev_priv->has_gmr)
 995                 vmw_gmrid_man_fini(dev_priv, VMW_PL_GMR);
 996         vmw_vram_manager_fini(dev_priv);
 997 out_no_vram:
 998         (void)ttm_bo_device_release(&dev_priv->bdev);
 999 out_no_bdev:
1000         vmw_fence_manager_takedown(dev_priv->fman);
1001 out_no_fman:
1002         if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
1003                 vmw_irq_uninstall(dev_priv->dev);
1004 out_no_irq:
1005         if (dev_priv->stealth)
1006                 pci_release_region(dev->pdev, 2);
1007         else
1008                 pci_release_regions(dev->pdev);
1009 out_no_device:
1010         ttm_object_device_release(&dev_priv->tdev);
1011 out_err4:
1012         memunmap(dev_priv->mmio_virt);
1013 out_err0:
1014         for (i = vmw_res_context; i < vmw_res_max; ++i)
1015                 idr_destroy(&dev_priv->res_idr[i]);
1016
1017         if (dev_priv->ctx.staged_bindings)
1018                 vmw_binding_state_free(dev_priv->ctx.staged_bindings);
1019         kfree(dev_priv);
1020         return ret;
1021 }
1022
1023 static void vmw_driver_unload(struct drm_device *dev)
1024 {
1025         struct vmw_private *dev_priv = vmw_priv(dev);
1026         enum vmw_res_type i;
1027
1028         unregister_pm_notifier(&dev_priv->pm_nb);
1029
1030         if (dev_priv->ctx.res_ht_initialized)
1031                 drm_ht_remove(&dev_priv->ctx.res_ht);
1032         vfree(dev_priv->ctx.cmd_bounce);
1033         if (dev_priv->enable_fb) {
1034                 vmw_fb_off(dev_priv);
1035                 vmw_fb_close(dev_priv);
1036                 vmw_fifo_resource_dec(dev_priv);
1037                 vmw_svga_disable(dev_priv);
1038         }
1039
1040         vmw_kms_close(dev_priv);
1041         vmw_overlay_close(dev_priv);
1042
1043         if (dev_priv->has_gmr)
1044                 vmw_gmrid_man_fini(dev_priv, VMW_PL_GMR);
1045
1046         vmw_release_device_early(dev_priv);
1047         if (dev_priv->has_mob)
1048                 vmw_gmrid_man_fini(dev_priv, VMW_PL_MOB);
1049         vmw_vram_manager_fini(dev_priv);
1050         (void) ttm_bo_device_release(&dev_priv->bdev);
1051         drm_vma_offset_manager_destroy(&dev_priv->vma_manager);
1052         vmw_release_device_late(dev_priv);
1053         vmw_fence_manager_takedown(dev_priv->fman);
1054         if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
1055                 vmw_irq_uninstall(dev_priv->dev);
1056         if (dev_priv->stealth)
1057                 pci_release_region(dev->pdev, 2);
1058         else
1059                 pci_release_regions(dev->pdev);
1060
1061         ttm_object_device_release(&dev_priv->tdev);
1062         memunmap(dev_priv->mmio_virt);
1063         if (dev_priv->ctx.staged_bindings)
1064                 vmw_binding_state_free(dev_priv->ctx.staged_bindings);
1065
1066         for (i = vmw_res_context; i < vmw_res_max; ++i)
1067                 idr_destroy(&dev_priv->res_idr[i]);
1068
1069         kfree(dev_priv);
1070 }
1071
1072 static void vmw_postclose(struct drm_device *dev,
1073                          struct drm_file *file_priv)
1074 {
1075         struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
1076
1077         ttm_object_file_release(&vmw_fp->tfile);
1078         kfree(vmw_fp);
1079 }
1080
1081 static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
1082 {
1083         struct vmw_private *dev_priv = vmw_priv(dev);
1084         struct vmw_fpriv *vmw_fp;
1085         int ret = -ENOMEM;
1086
1087         vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL);
1088         if (unlikely(!vmw_fp))
1089                 return ret;
1090
1091         vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev, 10);
1092         if (unlikely(vmw_fp->tfile == NULL))
1093                 goto out_no_tfile;
1094
1095         file_priv->driver_priv = vmw_fp;
1096
1097         return 0;
1098
1099 out_no_tfile:
1100         kfree(vmw_fp);
1101         return ret;
1102 }
1103
1104 static long vmw_generic_ioctl(struct file *filp, unsigned int cmd,
1105                               unsigned long arg,
1106                               long (*ioctl_func)(struct file *, unsigned int,
1107                                                  unsigned long))
1108 {
1109         struct drm_file *file_priv = filp->private_data;
1110         struct drm_device *dev = file_priv->minor->dev;
1111         unsigned int nr = DRM_IOCTL_NR(cmd);
1112         unsigned int flags;
1113
1114         /*
1115          * Do extra checking on driver private ioctls.
1116          */
1117
1118         if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
1119             && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) {
1120                 const struct drm_ioctl_desc *ioctl =
1121                         &vmw_ioctls[nr - DRM_COMMAND_BASE];
1122
1123                 if (nr == DRM_COMMAND_BASE + DRM_VMW_EXECBUF) {
1124                         return ioctl_func(filp, cmd, arg);
1125                 } else if (nr == DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT) {
1126                         if (!drm_is_current_master(file_priv) &&
1127                             !capable(CAP_SYS_ADMIN))
1128                                 return -EACCES;
1129                 }
1130
1131                 if (unlikely(ioctl->cmd != cmd))
1132                         goto out_io_encoding;
1133
1134                 flags = ioctl->flags;
1135         } else if (!drm_ioctl_flags(nr, &flags))
1136                 return -EINVAL;
1137
1138         return ioctl_func(filp, cmd, arg);
1139
1140 out_io_encoding:
1141         DRM_ERROR("Invalid command format, ioctl %d\n",
1142                   nr - DRM_COMMAND_BASE);
1143
1144         return -EINVAL;
1145 }
1146
1147 static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd,
1148                                unsigned long arg)
1149 {
1150         return vmw_generic_ioctl(filp, cmd, arg, &drm_ioctl);
1151 }
1152
1153 #ifdef CONFIG_COMPAT
1154 static long vmw_compat_ioctl(struct file *filp, unsigned int cmd,
1155                              unsigned long arg)
1156 {
1157         return vmw_generic_ioctl(filp, cmd, arg, &drm_compat_ioctl);
1158 }
1159 #endif
1160
1161 static void vmw_master_set(struct drm_device *dev,
1162                            struct drm_file *file_priv,
1163                            bool from_open)
1164 {
1165         /*
1166          * Inform a new master that the layout may have changed while
1167          * it was gone.
1168          */
1169         if (!from_open)
1170                 drm_sysfs_hotplug_event(dev);
1171 }
1172
1173 static void vmw_master_drop(struct drm_device *dev,
1174                             struct drm_file *file_priv)
1175 {
1176         struct vmw_private *dev_priv = vmw_priv(dev);
1177
1178         vmw_kms_legacy_hotspot_clear(dev_priv);
1179         if (!dev_priv->enable_fb)
1180                 vmw_svga_disable(dev_priv);
1181 }
1182
1183 /**
1184  * __vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM.
1185  *
1186  * @dev_priv: Pointer to device private struct.
1187  * Needs the reservation sem to be held in non-exclusive mode.
1188  */
1189 static void __vmw_svga_enable(struct vmw_private *dev_priv)
1190 {
1191         struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM);
1192
1193         spin_lock(&dev_priv->svga_lock);
1194         if (!ttm_resource_manager_used(man)) {
1195                 vmw_write(dev_priv, SVGA_REG_ENABLE, SVGA_REG_ENABLE);
1196                 ttm_resource_manager_set_used(man, true);
1197         }
1198         spin_unlock(&dev_priv->svga_lock);
1199 }
1200
1201 /**
1202  * vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM.
1203  *
1204  * @dev_priv: Pointer to device private struct.
1205  */
1206 void vmw_svga_enable(struct vmw_private *dev_priv)
1207 {
1208         (void) ttm_read_lock(&dev_priv->reservation_sem, false);
1209         __vmw_svga_enable(dev_priv);
1210         ttm_read_unlock(&dev_priv->reservation_sem);
1211 }
1212
1213 /**
1214  * __vmw_svga_disable - Disable SVGA mode and use of VRAM.
1215  *
1216  * @dev_priv: Pointer to device private struct.
1217  * Needs the reservation sem to be held in exclusive mode.
1218  * Will not empty VRAM. VRAM must be emptied by caller.
1219  */
1220 static void __vmw_svga_disable(struct vmw_private *dev_priv)
1221 {
1222         struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM);
1223
1224         spin_lock(&dev_priv->svga_lock);
1225         if (ttm_resource_manager_used(man)) {
1226                 ttm_resource_manager_set_used(man, false);
1227                 vmw_write(dev_priv, SVGA_REG_ENABLE,
1228                           SVGA_REG_ENABLE_HIDE |
1229                           SVGA_REG_ENABLE_ENABLE);
1230         }
1231         spin_unlock(&dev_priv->svga_lock);
1232 }
1233
1234 /**
1235  * vmw_svga_disable - Disable SVGA_MODE, and use of VRAM. Keep the fifo
1236  * running.
1237  *
1238  * @dev_priv: Pointer to device private struct.
1239  * Will empty VRAM.
1240  */
1241 void vmw_svga_disable(struct vmw_private *dev_priv)
1242 {
1243         struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM);
1244         /*
1245          * Disabling SVGA will turn off device modesetting capabilities, so
1246          * notify KMS about that so that it doesn't cache atomic state that
1247          * isn't valid anymore, for example crtcs turned on.
1248          * Strictly we'd want to do this under the SVGA lock (or an SVGA mutex),
1249          * but vmw_kms_lost_device() takes the reservation sem and thus we'll
1250          * end up with lock order reversal. Thus, a master may actually perform
1251          * a new modeset just after we call vmw_kms_lost_device() and race with
1252          * vmw_svga_disable(), but that should at worst cause atomic KMS state
1253          * to be inconsistent with the device, causing modesetting problems.
1254          *
1255          */
1256         vmw_kms_lost_device(dev_priv->dev);
1257         ttm_write_lock(&dev_priv->reservation_sem, false);
1258         spin_lock(&dev_priv->svga_lock);
1259         if (ttm_resource_manager_used(man)) {
1260                 ttm_resource_manager_set_used(man, false);
1261                 spin_unlock(&dev_priv->svga_lock);
1262                 if (ttm_resource_manager_evict_all(&dev_priv->bdev, man))
1263                         DRM_ERROR("Failed evicting VRAM buffers.\n");
1264                 vmw_write(dev_priv, SVGA_REG_ENABLE,
1265                           SVGA_REG_ENABLE_HIDE |
1266                           SVGA_REG_ENABLE_ENABLE);
1267         } else
1268                 spin_unlock(&dev_priv->svga_lock);
1269         ttm_write_unlock(&dev_priv->reservation_sem);
1270 }
1271
1272 static void vmw_remove(struct pci_dev *pdev)
1273 {
1274         struct drm_device *dev = pci_get_drvdata(pdev);
1275
1276         drm_dev_unregister(dev);
1277         vmw_driver_unload(dev);
1278         drm_dev_put(dev);
1279         pci_disable_device(pdev);
1280 }
1281
1282 static unsigned long
1283 vmw_get_unmapped_area(struct file *file, unsigned long uaddr,
1284                       unsigned long len, unsigned long pgoff,
1285                       unsigned long flags)
1286 {
1287         struct drm_file *file_priv = file->private_data;
1288         struct vmw_private *dev_priv = vmw_priv(file_priv->minor->dev);
1289
1290         return drm_get_unmapped_area(file, uaddr, len, pgoff, flags,
1291                                      &dev_priv->vma_manager);
1292 }
1293
1294 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
1295                               void *ptr)
1296 {
1297         struct vmw_private *dev_priv =
1298                 container_of(nb, struct vmw_private, pm_nb);
1299
1300         switch (val) {
1301         case PM_HIBERNATION_PREPARE:
1302                 /*
1303                  * Take the reservation sem in write mode, which will make sure
1304                  * there are no other processes holding a buffer object
1305                  * reservation, meaning we should be able to evict all buffer
1306                  * objects if needed.
1307                  * Once user-space processes have been frozen, we can release
1308                  * the lock again.
1309                  */
1310                 ttm_suspend_lock(&dev_priv->reservation_sem);
1311                 dev_priv->suspend_locked = true;
1312                 break;
1313         case PM_POST_HIBERNATION:
1314         case PM_POST_RESTORE:
1315                 if (READ_ONCE(dev_priv->suspend_locked)) {
1316                         dev_priv->suspend_locked = false;
1317                         ttm_suspend_unlock(&dev_priv->reservation_sem);
1318                 }
1319                 break;
1320         default:
1321                 break;
1322         }
1323         return 0;
1324 }
1325
1326 static int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
1327 {
1328         struct drm_device *dev = pci_get_drvdata(pdev);
1329         struct vmw_private *dev_priv = vmw_priv(dev);
1330
1331         if (dev_priv->refuse_hibernation)
1332                 return -EBUSY;
1333
1334         pci_save_state(pdev);
1335         pci_disable_device(pdev);
1336         pci_set_power_state(pdev, PCI_D3hot);
1337         return 0;
1338 }
1339
1340 static int vmw_pci_resume(struct pci_dev *pdev)
1341 {
1342         pci_set_power_state(pdev, PCI_D0);
1343         pci_restore_state(pdev);
1344         return pci_enable_device(pdev);
1345 }
1346
1347 static int vmw_pm_suspend(struct device *kdev)
1348 {
1349         struct pci_dev *pdev = to_pci_dev(kdev);
1350         struct pm_message dummy;
1351
1352         dummy.event = 0;
1353
1354         return vmw_pci_suspend(pdev, dummy);
1355 }
1356
1357 static int vmw_pm_resume(struct device *kdev)
1358 {
1359         struct pci_dev *pdev = to_pci_dev(kdev);
1360
1361         return vmw_pci_resume(pdev);
1362 }
1363
1364 static int vmw_pm_freeze(struct device *kdev)
1365 {
1366         struct pci_dev *pdev = to_pci_dev(kdev);
1367         struct drm_device *dev = pci_get_drvdata(pdev);
1368         struct vmw_private *dev_priv = vmw_priv(dev);
1369         struct ttm_operation_ctx ctx = {
1370                 .interruptible = false,
1371                 .no_wait_gpu = false
1372         };
1373         int ret;
1374
1375         /*
1376          * Unlock for vmw_kms_suspend.
1377          * No user-space processes should be running now.
1378          */
1379         ttm_suspend_unlock(&dev_priv->reservation_sem);
1380         ret = vmw_kms_suspend(dev_priv->dev);
1381         if (ret) {
1382                 ttm_suspend_lock(&dev_priv->reservation_sem);
1383                 DRM_ERROR("Failed to freeze modesetting.\n");
1384                 return ret;
1385         }
1386         if (dev_priv->enable_fb)
1387                 vmw_fb_off(dev_priv);
1388
1389         ttm_suspend_lock(&dev_priv->reservation_sem);
1390         vmw_execbuf_release_pinned_bo(dev_priv);
1391         vmw_resource_evict_all(dev_priv);
1392         vmw_release_device_early(dev_priv);
1393         while (ttm_bo_swapout(&ctx) == 0);
1394         if (dev_priv->enable_fb)
1395                 vmw_fifo_resource_dec(dev_priv);
1396         if (atomic_read(&dev_priv->num_fifo_resources) != 0) {
1397                 DRM_ERROR("Can't hibernate while 3D resources are active.\n");
1398                 if (dev_priv->enable_fb)
1399                         vmw_fifo_resource_inc(dev_priv);
1400                 WARN_ON(vmw_request_device_late(dev_priv));
1401                 dev_priv->suspend_locked = false;
1402                 ttm_suspend_unlock(&dev_priv->reservation_sem);
1403                 if (dev_priv->suspend_state)
1404                         vmw_kms_resume(dev);
1405                 if (dev_priv->enable_fb)
1406                         vmw_fb_on(dev_priv);
1407                 return -EBUSY;
1408         }
1409
1410         vmw_fence_fifo_down(dev_priv->fman);
1411         __vmw_svga_disable(dev_priv);
1412
1413         vmw_release_device_late(dev_priv);
1414         return 0;
1415 }
1416
1417 static int vmw_pm_restore(struct device *kdev)
1418 {
1419         struct pci_dev *pdev = to_pci_dev(kdev);
1420         struct drm_device *dev = pci_get_drvdata(pdev);
1421         struct vmw_private *dev_priv = vmw_priv(dev);
1422         int ret;
1423
1424         vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
1425         (void) vmw_read(dev_priv, SVGA_REG_ID);
1426
1427         if (dev_priv->enable_fb)
1428                 vmw_fifo_resource_inc(dev_priv);
1429
1430         ret = vmw_request_device(dev_priv);
1431         if (ret)
1432                 return ret;
1433
1434         if (dev_priv->enable_fb)
1435                 __vmw_svga_enable(dev_priv);
1436
1437         vmw_fence_fifo_up(dev_priv->fman);
1438         dev_priv->suspend_locked = false;
1439         ttm_suspend_unlock(&dev_priv->reservation_sem);
1440         if (dev_priv->suspend_state)
1441                 vmw_kms_resume(dev_priv->dev);
1442
1443         if (dev_priv->enable_fb)
1444                 vmw_fb_on(dev_priv);
1445
1446         return 0;
1447 }
1448
1449 static const struct dev_pm_ops vmw_pm_ops = {
1450         .freeze = vmw_pm_freeze,
1451         .thaw = vmw_pm_restore,
1452         .restore = vmw_pm_restore,
1453         .suspend = vmw_pm_suspend,
1454         .resume = vmw_pm_resume,
1455 };
1456
1457 static const struct file_operations vmwgfx_driver_fops = {
1458         .owner = THIS_MODULE,
1459         .open = drm_open,
1460         .release = drm_release,
1461         .unlocked_ioctl = vmw_unlocked_ioctl,
1462         .mmap = vmw_mmap,
1463         .poll = vmw_fops_poll,
1464         .read = vmw_fops_read,
1465 #if defined(CONFIG_COMPAT)
1466         .compat_ioctl = vmw_compat_ioctl,
1467 #endif
1468         .llseek = noop_llseek,
1469         .get_unmapped_area = vmw_get_unmapped_area,
1470 };
1471
1472 static const struct drm_driver driver = {
1473         .driver_features =
1474         DRIVER_MODESET | DRIVER_RENDER | DRIVER_ATOMIC,
1475         .ioctls = vmw_ioctls,
1476         .num_ioctls = ARRAY_SIZE(vmw_ioctls),
1477         .master_set = vmw_master_set,
1478         .master_drop = vmw_master_drop,
1479         .open = vmw_driver_open,
1480         .postclose = vmw_postclose,
1481
1482         .dumb_create = vmw_dumb_create,
1483         .dumb_map_offset = vmw_dumb_map_offset,
1484         .dumb_destroy = vmw_dumb_destroy,
1485
1486         .prime_fd_to_handle = vmw_prime_fd_to_handle,
1487         .prime_handle_to_fd = vmw_prime_handle_to_fd,
1488
1489         .fops = &vmwgfx_driver_fops,
1490         .name = VMWGFX_DRIVER_NAME,
1491         .desc = VMWGFX_DRIVER_DESC,
1492         .date = VMWGFX_DRIVER_DATE,
1493         .major = VMWGFX_DRIVER_MAJOR,
1494         .minor = VMWGFX_DRIVER_MINOR,
1495         .patchlevel = VMWGFX_DRIVER_PATCHLEVEL
1496 };
1497
1498 static struct pci_driver vmw_pci_driver = {
1499         .name = VMWGFX_DRIVER_NAME,
1500         .id_table = vmw_pci_id_list,
1501         .probe = vmw_probe,
1502         .remove = vmw_remove,
1503         .driver = {
1504                 .pm = &vmw_pm_ops
1505         }
1506 };
1507
1508 static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1509 {
1510         struct drm_device *dev;
1511         int ret;
1512
1513         ret = pci_enable_device(pdev);
1514         if (ret)
1515                 return ret;
1516
1517         dev = drm_dev_alloc(&driver, &pdev->dev);
1518         if (IS_ERR(dev)) {
1519                 ret = PTR_ERR(dev);
1520                 goto err_pci_disable_device;
1521         }
1522
1523         dev->pdev = pdev;
1524         pci_set_drvdata(pdev, dev);
1525
1526         ret = vmw_driver_load(dev, ent->driver_data);
1527         if (ret)
1528                 goto err_drm_dev_put;
1529
1530         ret = drm_dev_register(dev, ent->driver_data);
1531         if (ret)
1532                 goto err_vmw_driver_unload;
1533
1534         return 0;
1535
1536 err_vmw_driver_unload:
1537         vmw_driver_unload(dev);
1538 err_drm_dev_put:
1539         drm_dev_put(dev);
1540 err_pci_disable_device:
1541         pci_disable_device(pdev);
1542         return ret;
1543 }
1544
1545 static int __init vmwgfx_init(void)
1546 {
1547         int ret;
1548
1549         if (vgacon_text_force())
1550                 return -EINVAL;
1551
1552         ret = pci_register_driver(&vmw_pci_driver);
1553         if (ret)
1554                 DRM_ERROR("Failed initializing DRM.\n");
1555         return ret;
1556 }
1557
1558 static void __exit vmwgfx_exit(void)
1559 {
1560         pci_unregister_driver(&vmw_pci_driver);
1561 }
1562
1563 module_init(vmwgfx_init);
1564 module_exit(vmwgfx_exit);
1565
1566 MODULE_AUTHOR("VMware Inc. and others");
1567 MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device");
1568 MODULE_LICENSE("GPL and additional rights");
1569 MODULE_VERSION(__stringify(VMWGFX_DRIVER_MAJOR) "."
1570                __stringify(VMWGFX_DRIVER_MINOR) "."
1571                __stringify(VMWGFX_DRIVER_PATCHLEVEL) "."
1572                "0");