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 #include <linux/module.h> 28 #include <linux/console.h> 29 30 #include <drm/drmP.h> 31 #include "vmwgfx_drv.h" 32 #include "vmwgfx_binding.h" 33 #include "ttm_object.h" 34 #include <drm/ttm/ttm_placement.h> 35 #include <drm/ttm/ttm_bo_driver.h> 36 #include <drm/ttm/ttm_module.h> 37 #include <linux/dma_remapping.h> 38 39 #define VMWGFX_DRIVER_DESC "Linux drm driver for VMware graphics devices" 40 #define VMWGFX_CHIP_SVGAII 0 41 #define VMW_FB_RESERVATION 0 42 43 #define VMW_MIN_INITIAL_WIDTH 800 44 #define VMW_MIN_INITIAL_HEIGHT 600 45 46 #ifndef VMWGFX_GIT_VERSION 47 #define VMWGFX_GIT_VERSION "Unknown" 48 #endif 49 50 #define VMWGFX_REPO "In Tree" 51 52 53 /** 54 * Fully encoded drm commands. Might move to vmw_drm.h 55 */ 56 57 #define DRM_IOCTL_VMW_GET_PARAM \ 58 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GET_PARAM, \ 59 struct drm_vmw_getparam_arg) 60 #define DRM_IOCTL_VMW_ALLOC_DMABUF \ 61 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_ALLOC_DMABUF, \ 62 union drm_vmw_alloc_dmabuf_arg) 63 #define DRM_IOCTL_VMW_UNREF_DMABUF \ 64 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_DMABUF, \ 65 struct drm_vmw_unref_dmabuf_arg) 66 #define DRM_IOCTL_VMW_CURSOR_BYPASS \ 67 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CURSOR_BYPASS, \ 68 struct drm_vmw_cursor_bypass_arg) 69 70 #define DRM_IOCTL_VMW_CONTROL_STREAM \ 71 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CONTROL_STREAM, \ 72 struct drm_vmw_control_stream_arg) 73 #define DRM_IOCTL_VMW_CLAIM_STREAM \ 74 DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CLAIM_STREAM, \ 75 struct drm_vmw_stream_arg) 76 #define DRM_IOCTL_VMW_UNREF_STREAM \ 77 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_STREAM, \ 78 struct drm_vmw_stream_arg) 79 80 #define DRM_IOCTL_VMW_CREATE_CONTEXT \ 81 DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CREATE_CONTEXT, \ 82 struct drm_vmw_context_arg) 83 #define DRM_IOCTL_VMW_UNREF_CONTEXT \ 84 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_CONTEXT, \ 85 struct drm_vmw_context_arg) 86 #define DRM_IOCTL_VMW_CREATE_SURFACE \ 87 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SURFACE, \ 88 union drm_vmw_surface_create_arg) 89 #define DRM_IOCTL_VMW_UNREF_SURFACE \ 90 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SURFACE, \ 91 struct drm_vmw_surface_arg) 92 #define DRM_IOCTL_VMW_REF_SURFACE \ 93 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_REF_SURFACE, \ 94 union drm_vmw_surface_reference_arg) 95 #define DRM_IOCTL_VMW_EXECBUF \ 96 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_EXECBUF, \ 97 struct drm_vmw_execbuf_arg) 98 #define DRM_IOCTL_VMW_GET_3D_CAP \ 99 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_GET_3D_CAP, \ 100 struct drm_vmw_get_3d_cap_arg) 101 #define DRM_IOCTL_VMW_FENCE_WAIT \ 102 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_WAIT, \ 103 struct drm_vmw_fence_wait_arg) 104 #define DRM_IOCTL_VMW_FENCE_SIGNALED \ 105 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_SIGNALED, \ 106 struct drm_vmw_fence_signaled_arg) 107 #define DRM_IOCTL_VMW_FENCE_UNREF \ 108 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_UNREF, \ 109 struct drm_vmw_fence_arg) 110 #define DRM_IOCTL_VMW_FENCE_EVENT \ 111 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_EVENT, \ 112 struct drm_vmw_fence_event_arg) 113 #define DRM_IOCTL_VMW_PRESENT \ 114 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT, \ 115 struct drm_vmw_present_arg) 116 #define DRM_IOCTL_VMW_PRESENT_READBACK \ 117 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT_READBACK, \ 118 struct drm_vmw_present_readback_arg) 119 #define DRM_IOCTL_VMW_UPDATE_LAYOUT \ 120 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT, \ 121 struct drm_vmw_update_layout_arg) 122 #define DRM_IOCTL_VMW_CREATE_SHADER \ 123 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SHADER, \ 124 struct drm_vmw_shader_create_arg) 125 #define DRM_IOCTL_VMW_UNREF_SHADER \ 126 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SHADER, \ 127 struct drm_vmw_shader_arg) 128 #define DRM_IOCTL_VMW_GB_SURFACE_CREATE \ 129 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_CREATE, \ 130 union drm_vmw_gb_surface_create_arg) 131 #define DRM_IOCTL_VMW_GB_SURFACE_REF \ 132 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF, \ 133 union drm_vmw_gb_surface_reference_arg) 134 #define DRM_IOCTL_VMW_SYNCCPU \ 135 DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_SYNCCPU, \ 136 struct drm_vmw_synccpu_arg) 137 #define DRM_IOCTL_VMW_CREATE_EXTENDED_CONTEXT \ 138 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_EXTENDED_CONTEXT, \ 139 struct drm_vmw_context_arg) 140 #define DRM_IOCTL_VMW_GB_SURFACE_CREATE_EXT \ 141 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_CREATE_EXT, \ 142 union drm_vmw_gb_surface_create_ext_arg) 143 #define DRM_IOCTL_VMW_GB_SURFACE_REF_EXT \ 144 DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF_EXT, \ 145 union drm_vmw_gb_surface_reference_ext_arg) 146 147 /** 148 * The core DRM version of this macro doesn't account for 149 * DRM_COMMAND_BASE. 150 */ 151 152 #define VMW_IOCTL_DEF(ioctl, func, flags) \ 153 [DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = {DRM_IOCTL_##ioctl, flags, func} 154 155 /** 156 * Ioctl definitions. 157 */ 158 159 static const struct drm_ioctl_desc vmw_ioctls[] = { 160 VMW_IOCTL_DEF(VMW_GET_PARAM, vmw_getparam_ioctl, 161 DRM_AUTH | DRM_RENDER_ALLOW), 162 VMW_IOCTL_DEF(VMW_ALLOC_DMABUF, vmw_bo_alloc_ioctl, 163 DRM_AUTH | DRM_RENDER_ALLOW), 164 VMW_IOCTL_DEF(VMW_UNREF_DMABUF, vmw_bo_unref_ioctl, 165 DRM_RENDER_ALLOW), 166 VMW_IOCTL_DEF(VMW_CURSOR_BYPASS, 167 vmw_kms_cursor_bypass_ioctl, 168 DRM_MASTER), 169 170 VMW_IOCTL_DEF(VMW_CONTROL_STREAM, vmw_overlay_ioctl, 171 DRM_MASTER), 172 VMW_IOCTL_DEF(VMW_CLAIM_STREAM, vmw_stream_claim_ioctl, 173 DRM_MASTER), 174 VMW_IOCTL_DEF(VMW_UNREF_STREAM, vmw_stream_unref_ioctl, 175 DRM_MASTER), 176 177 VMW_IOCTL_DEF(VMW_CREATE_CONTEXT, vmw_context_define_ioctl, 178 DRM_AUTH | DRM_RENDER_ALLOW), 179 VMW_IOCTL_DEF(VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl, 180 DRM_RENDER_ALLOW), 181 VMW_IOCTL_DEF(VMW_CREATE_SURFACE, vmw_surface_define_ioctl, 182 DRM_AUTH | DRM_RENDER_ALLOW), 183 VMW_IOCTL_DEF(VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl, 184 DRM_RENDER_ALLOW), 185 VMW_IOCTL_DEF(VMW_REF_SURFACE, vmw_surface_reference_ioctl, 186 DRM_AUTH | DRM_RENDER_ALLOW), 187 VMW_IOCTL_DEF(VMW_EXECBUF, NULL, DRM_AUTH | 188 DRM_RENDER_ALLOW), 189 VMW_IOCTL_DEF(VMW_FENCE_WAIT, vmw_fence_obj_wait_ioctl, 190 DRM_RENDER_ALLOW), 191 VMW_IOCTL_DEF(VMW_FENCE_SIGNALED, 192 vmw_fence_obj_signaled_ioctl, 193 DRM_RENDER_ALLOW), 194 VMW_IOCTL_DEF(VMW_FENCE_UNREF, vmw_fence_obj_unref_ioctl, 195 DRM_RENDER_ALLOW), 196 VMW_IOCTL_DEF(VMW_FENCE_EVENT, vmw_fence_event_ioctl, 197 DRM_AUTH | DRM_RENDER_ALLOW), 198 VMW_IOCTL_DEF(VMW_GET_3D_CAP, vmw_get_cap_3d_ioctl, 199 DRM_AUTH | DRM_RENDER_ALLOW), 200 201 /* these allow direct access to the framebuffers mark as master only */ 202 VMW_IOCTL_DEF(VMW_PRESENT, vmw_present_ioctl, 203 DRM_MASTER | DRM_AUTH), 204 VMW_IOCTL_DEF(VMW_PRESENT_READBACK, 205 vmw_present_readback_ioctl, 206 DRM_MASTER | DRM_AUTH), 207 /* 208 * The permissions of the below ioctl are overridden in 209 * vmw_generic_ioctl(). We require either 210 * DRM_MASTER or capable(CAP_SYS_ADMIN). 211 */ 212 VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT, 213 vmw_kms_update_layout_ioctl, 214 DRM_RENDER_ALLOW), 215 VMW_IOCTL_DEF(VMW_CREATE_SHADER, 216 vmw_shader_define_ioctl, 217 DRM_AUTH | DRM_RENDER_ALLOW), 218 VMW_IOCTL_DEF(VMW_UNREF_SHADER, 219 vmw_shader_destroy_ioctl, 220 DRM_RENDER_ALLOW), 221 VMW_IOCTL_DEF(VMW_GB_SURFACE_CREATE, 222 vmw_gb_surface_define_ioctl, 223 DRM_AUTH | DRM_RENDER_ALLOW), 224 VMW_IOCTL_DEF(VMW_GB_SURFACE_REF, 225 vmw_gb_surface_reference_ioctl, 226 DRM_AUTH | DRM_RENDER_ALLOW), 227 VMW_IOCTL_DEF(VMW_SYNCCPU, 228 vmw_user_bo_synccpu_ioctl, 229 DRM_RENDER_ALLOW), 230 VMW_IOCTL_DEF(VMW_CREATE_EXTENDED_CONTEXT, 231 vmw_extended_context_define_ioctl, 232 DRM_AUTH | DRM_RENDER_ALLOW), 233 VMW_IOCTL_DEF(VMW_GB_SURFACE_CREATE_EXT, 234 vmw_gb_surface_define_ext_ioctl, 235 DRM_AUTH | DRM_RENDER_ALLOW), 236 VMW_IOCTL_DEF(VMW_GB_SURFACE_REF_EXT, 237 vmw_gb_surface_reference_ext_ioctl, 238 DRM_AUTH | DRM_RENDER_ALLOW), 239 }; 240 241 static const struct pci_device_id vmw_pci_id_list[] = { 242 {0x15ad, 0x0405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VMWGFX_CHIP_SVGAII}, 243 {0, 0, 0} 244 }; 245 MODULE_DEVICE_TABLE(pci, vmw_pci_id_list); 246 247 static int enable_fbdev = IS_ENABLED(CONFIG_DRM_VMWGFX_FBCON); 248 static int vmw_force_iommu; 249 static int vmw_restrict_iommu; 250 static int vmw_force_coherent; 251 static int vmw_restrict_dma_mask; 252 static int vmw_assume_16bpp; 253 254 static int vmw_probe(struct pci_dev *, const struct pci_device_id *); 255 static void vmw_master_init(struct vmw_master *); 256 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val, 257 void *ptr); 258 259 MODULE_PARM_DESC(enable_fbdev, "Enable vmwgfx fbdev"); 260 module_param_named(enable_fbdev, enable_fbdev, int, 0600); 261 MODULE_PARM_DESC(force_dma_api, "Force using the DMA API for TTM pages"); 262 module_param_named(force_dma_api, vmw_force_iommu, int, 0600); 263 MODULE_PARM_DESC(restrict_iommu, "Try to limit IOMMU usage for TTM pages"); 264 module_param_named(restrict_iommu, vmw_restrict_iommu, int, 0600); 265 MODULE_PARM_DESC(force_coherent, "Force coherent TTM pages"); 266 module_param_named(force_coherent, vmw_force_coherent, int, 0600); 267 MODULE_PARM_DESC(restrict_dma_mask, "Restrict DMA mask to 44 bits with IOMMU"); 268 module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, 0600); 269 MODULE_PARM_DESC(assume_16bpp, "Assume 16-bpp when filtering modes"); 270 module_param_named(assume_16bpp, vmw_assume_16bpp, int, 0600); 271 272 273 static void vmw_print_capabilities2(uint32_t capabilities2) 274 { 275 DRM_INFO("Capabilities2:\n"); 276 if (capabilities2 & SVGA_CAP2_GROW_OTABLE) 277 DRM_INFO(" Grow oTable.\n"); 278 if (capabilities2 & SVGA_CAP2_INTRA_SURFACE_COPY) 279 DRM_INFO(" IntraSurface copy.\n"); 280 } 281 282 static void vmw_print_capabilities(uint32_t capabilities) 283 { 284 DRM_INFO("Capabilities:\n"); 285 if (capabilities & SVGA_CAP_RECT_COPY) 286 DRM_INFO(" Rect copy.\n"); 287 if (capabilities & SVGA_CAP_CURSOR) 288 DRM_INFO(" Cursor.\n"); 289 if (capabilities & SVGA_CAP_CURSOR_BYPASS) 290 DRM_INFO(" Cursor bypass.\n"); 291 if (capabilities & SVGA_CAP_CURSOR_BYPASS_2) 292 DRM_INFO(" Cursor bypass 2.\n"); 293 if (capabilities & SVGA_CAP_8BIT_EMULATION) 294 DRM_INFO(" 8bit emulation.\n"); 295 if (capabilities & SVGA_CAP_ALPHA_CURSOR) 296 DRM_INFO(" Alpha cursor.\n"); 297 if (capabilities & SVGA_CAP_3D) 298 DRM_INFO(" 3D.\n"); 299 if (capabilities & SVGA_CAP_EXTENDED_FIFO) 300 DRM_INFO(" Extended Fifo.\n"); 301 if (capabilities & SVGA_CAP_MULTIMON) 302 DRM_INFO(" Multimon.\n"); 303 if (capabilities & SVGA_CAP_PITCHLOCK) 304 DRM_INFO(" Pitchlock.\n"); 305 if (capabilities & SVGA_CAP_IRQMASK) 306 DRM_INFO(" Irq mask.\n"); 307 if (capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) 308 DRM_INFO(" Display Topology.\n"); 309 if (capabilities & SVGA_CAP_GMR) 310 DRM_INFO(" GMR.\n"); 311 if (capabilities & SVGA_CAP_TRACES) 312 DRM_INFO(" Traces.\n"); 313 if (capabilities & SVGA_CAP_GMR2) 314 DRM_INFO(" GMR2.\n"); 315 if (capabilities & SVGA_CAP_SCREEN_OBJECT_2) 316 DRM_INFO(" Screen Object 2.\n"); 317 if (capabilities & SVGA_CAP_COMMAND_BUFFERS) 318 DRM_INFO(" Command Buffers.\n"); 319 if (capabilities & SVGA_CAP_CMD_BUFFERS_2) 320 DRM_INFO(" Command Buffers 2.\n"); 321 if (capabilities & SVGA_CAP_GBOBJECTS) 322 DRM_INFO(" Guest Backed Resources.\n"); 323 if (capabilities & SVGA_CAP_DX) 324 DRM_INFO(" DX Features.\n"); 325 if (capabilities & SVGA_CAP_HP_CMD_QUEUE) 326 DRM_INFO(" HP Command Queue.\n"); 327 } 328 329 /** 330 * vmw_dummy_query_bo_create - create a bo to hold a dummy query result 331 * 332 * @dev_priv: A device private structure. 333 * 334 * This function creates a small buffer object that holds the query 335 * result for dummy queries emitted as query barriers. 336 * The function will then map the first page and initialize a pending 337 * occlusion query result structure, Finally it will unmap the buffer. 338 * No interruptible waits are done within this function. 339 * 340 * Returns an error if bo creation or initialization fails. 341 */ 342 static int vmw_dummy_query_bo_create(struct vmw_private *dev_priv) 343 { 344 int ret; 345 struct vmw_buffer_object *vbo; 346 struct ttm_bo_kmap_obj map; 347 volatile SVGA3dQueryResult *result; 348 bool dummy; 349 350 /* 351 * Create the vbo as pinned, so that a tryreserve will 352 * immediately succeed. This is because we're the only 353 * user of the bo currently. 354 */ 355 vbo = kzalloc(sizeof(*vbo), GFP_KERNEL); 356 if (!vbo) 357 return -ENOMEM; 358 359 ret = vmw_bo_init(dev_priv, vbo, PAGE_SIZE, 360 &vmw_sys_ne_placement, false, 361 &vmw_bo_bo_free); 362 if (unlikely(ret != 0)) 363 return ret; 364 365 ret = ttm_bo_reserve(&vbo->base, false, true, NULL); 366 BUG_ON(ret != 0); 367 vmw_bo_pin_reserved(vbo, true); 368 369 ret = ttm_bo_kmap(&vbo->base, 0, 1, &map); 370 if (likely(ret == 0)) { 371 result = ttm_kmap_obj_virtual(&map, &dummy); 372 result->totalSize = sizeof(*result); 373 result->state = SVGA3D_QUERYSTATE_PENDING; 374 result->result32 = 0xff; 375 ttm_bo_kunmap(&map); 376 } 377 vmw_bo_pin_reserved(vbo, false); 378 ttm_bo_unreserve(&vbo->base); 379 380 if (unlikely(ret != 0)) { 381 DRM_ERROR("Dummy query buffer map failed.\n"); 382 vmw_bo_unreference(&vbo); 383 } else 384 dev_priv->dummy_query_bo = vbo; 385 386 return ret; 387 } 388 389 /** 390 * vmw_request_device_late - Perform late device setup 391 * 392 * @dev_priv: Pointer to device private. 393 * 394 * This function performs setup of otables and enables large command 395 * buffer submission. These tasks are split out to a separate function 396 * because it reverts vmw_release_device_early and is intended to be used 397 * by an error path in the hibernation code. 398 */ 399 static int vmw_request_device_late(struct vmw_private *dev_priv) 400 { 401 int ret; 402 403 if (dev_priv->has_mob) { 404 ret = vmw_otables_setup(dev_priv); 405 if (unlikely(ret != 0)) { 406 DRM_ERROR("Unable to initialize " 407 "guest Memory OBjects.\n"); 408 return ret; 409 } 410 } 411 412 if (dev_priv->cman) { 413 ret = vmw_cmdbuf_set_pool_size(dev_priv->cman, 414 256*4096, 2*4096); 415 if (ret) { 416 struct vmw_cmdbuf_man *man = dev_priv->cman; 417 418 dev_priv->cman = NULL; 419 vmw_cmdbuf_man_destroy(man); 420 } 421 } 422 423 return 0; 424 } 425 426 static int vmw_request_device(struct vmw_private *dev_priv) 427 { 428 int ret; 429 430 ret = vmw_fifo_init(dev_priv, &dev_priv->fifo); 431 if (unlikely(ret != 0)) { 432 DRM_ERROR("Unable to initialize FIFO.\n"); 433 return ret; 434 } 435 vmw_fence_fifo_up(dev_priv->fman); 436 dev_priv->cman = vmw_cmdbuf_man_create(dev_priv); 437 if (IS_ERR(dev_priv->cman)) { 438 dev_priv->cman = NULL; 439 dev_priv->has_dx = false; 440 } 441 442 ret = vmw_request_device_late(dev_priv); 443 if (ret) 444 goto out_no_mob; 445 446 ret = vmw_dummy_query_bo_create(dev_priv); 447 if (unlikely(ret != 0)) 448 goto out_no_query_bo; 449 450 return 0; 451 452 out_no_query_bo: 453 if (dev_priv->cman) 454 vmw_cmdbuf_remove_pool(dev_priv->cman); 455 if (dev_priv->has_mob) { 456 (void) ttm_bo_evict_mm(&dev_priv->bdev, VMW_PL_MOB); 457 vmw_otables_takedown(dev_priv); 458 } 459 if (dev_priv->cman) 460 vmw_cmdbuf_man_destroy(dev_priv->cman); 461 out_no_mob: 462 vmw_fence_fifo_down(dev_priv->fman); 463 vmw_fifo_release(dev_priv, &dev_priv->fifo); 464 return ret; 465 } 466 467 /** 468 * vmw_release_device_early - Early part of fifo takedown. 469 * 470 * @dev_priv: Pointer to device private struct. 471 * 472 * This is the first part of command submission takedown, to be called before 473 * buffer management is taken down. 474 */ 475 static void vmw_release_device_early(struct vmw_private *dev_priv) 476 { 477 /* 478 * Previous destructions should've released 479 * the pinned bo. 480 */ 481 482 BUG_ON(dev_priv->pinned_bo != NULL); 483 484 vmw_bo_unreference(&dev_priv->dummy_query_bo); 485 if (dev_priv->cman) 486 vmw_cmdbuf_remove_pool(dev_priv->cman); 487 488 if (dev_priv->has_mob) { 489 ttm_bo_evict_mm(&dev_priv->bdev, VMW_PL_MOB); 490 vmw_otables_takedown(dev_priv); 491 } 492 } 493 494 /** 495 * vmw_release_device_late - Late part of fifo takedown. 496 * 497 * @dev_priv: Pointer to device private struct. 498 * 499 * This is the last part of the command submission takedown, to be called when 500 * command submission is no longer needed. It may wait on pending fences. 501 */ 502 static void vmw_release_device_late(struct vmw_private *dev_priv) 503 { 504 vmw_fence_fifo_down(dev_priv->fman); 505 if (dev_priv->cman) 506 vmw_cmdbuf_man_destroy(dev_priv->cman); 507 508 vmw_fifo_release(dev_priv, &dev_priv->fifo); 509 } 510 511 /** 512 * Sets the initial_[width|height] fields on the given vmw_private. 513 * 514 * It does so by reading SVGA_REG_[WIDTH|HEIGHT] regs and then 515 * clamping the value to fb_max_[width|height] fields and the 516 * VMW_MIN_INITIAL_[WIDTH|HEIGHT]. 517 * If the values appear to be invalid, set them to 518 * VMW_MIN_INITIAL_[WIDTH|HEIGHT]. 519 */ 520 static void vmw_get_initial_size(struct vmw_private *dev_priv) 521 { 522 uint32_t width; 523 uint32_t height; 524 525 width = vmw_read(dev_priv, SVGA_REG_WIDTH); 526 height = vmw_read(dev_priv, SVGA_REG_HEIGHT); 527 528 width = max_t(uint32_t, width, VMW_MIN_INITIAL_WIDTH); 529 height = max_t(uint32_t, height, VMW_MIN_INITIAL_HEIGHT); 530 531 if (width > dev_priv->fb_max_width || 532 height > dev_priv->fb_max_height) { 533 534 /* 535 * This is a host error and shouldn't occur. 536 */ 537 538 width = VMW_MIN_INITIAL_WIDTH; 539 height = VMW_MIN_INITIAL_HEIGHT; 540 } 541 542 dev_priv->initial_width = width; 543 dev_priv->initial_height = height; 544 } 545 546 /** 547 * vmw_dma_select_mode - Determine how DMA mappings should be set up for this 548 * system. 549 * 550 * @dev_priv: Pointer to a struct vmw_private 551 * 552 * This functions tries to determine the IOMMU setup and what actions 553 * need to be taken by the driver to make system pages visible to the 554 * device. 555 * If this function decides that DMA is not possible, it returns -EINVAL. 556 * The driver may then try to disable features of the device that require 557 * DMA. 558 */ 559 static int vmw_dma_select_mode(struct vmw_private *dev_priv) 560 { 561 static const char *names[vmw_dma_map_max] = { 562 [vmw_dma_phys] = "Using physical TTM page addresses.", 563 [vmw_dma_alloc_coherent] = "Using coherent TTM pages.", 564 [vmw_dma_map_populate] = "Keeping DMA mappings.", 565 [vmw_dma_map_bind] = "Giving up DMA mappings early."}; 566 #ifdef CONFIG_X86 567 const struct dma_map_ops *dma_ops = get_dma_ops(dev_priv->dev->dev); 568 569 #ifdef CONFIG_INTEL_IOMMU 570 if (intel_iommu_enabled) { 571 dev_priv->map_mode = vmw_dma_map_populate; 572 goto out_fixup; 573 } 574 #endif 575 576 if (!(vmw_force_iommu || vmw_force_coherent)) { 577 dev_priv->map_mode = vmw_dma_phys; 578 DRM_INFO("DMA map mode: %s\n", names[dev_priv->map_mode]); 579 return 0; 580 } 581 582 dev_priv->map_mode = vmw_dma_map_populate; 583 584 if (dma_ops->sync_single_for_cpu) 585 dev_priv->map_mode = vmw_dma_alloc_coherent; 586 #ifdef CONFIG_SWIOTLB 587 if (swiotlb_nr_tbl() == 0) 588 dev_priv->map_mode = vmw_dma_map_populate; 589 #endif 590 591 #ifdef CONFIG_INTEL_IOMMU 592 out_fixup: 593 #endif 594 if (dev_priv->map_mode == vmw_dma_map_populate && 595 vmw_restrict_iommu) 596 dev_priv->map_mode = vmw_dma_map_bind; 597 598 if (vmw_force_coherent) 599 dev_priv->map_mode = vmw_dma_alloc_coherent; 600 601 #if !defined(CONFIG_SWIOTLB) && !defined(CONFIG_INTEL_IOMMU) 602 /* 603 * No coherent page pool 604 */ 605 if (dev_priv->map_mode == vmw_dma_alloc_coherent) 606 return -EINVAL; 607 #endif 608 609 #else /* CONFIG_X86 */ 610 dev_priv->map_mode = vmw_dma_map_populate; 611 #endif /* CONFIG_X86 */ 612 613 DRM_INFO("DMA map mode: %s\n", names[dev_priv->map_mode]); 614 615 return 0; 616 } 617 618 /** 619 * vmw_dma_masks - set required page- and dma masks 620 * 621 * @dev: Pointer to struct drm-device 622 * 623 * With 32-bit we can only handle 32 bit PFNs. Optionally set that 624 * restriction also for 64-bit systems. 625 */ 626 #ifdef CONFIG_INTEL_IOMMU 627 static int vmw_dma_masks(struct vmw_private *dev_priv) 628 { 629 struct drm_device *dev = dev_priv->dev; 630 631 if (intel_iommu_enabled && 632 (sizeof(unsigned long) == 4 || vmw_restrict_dma_mask)) { 633 DRM_INFO("Restricting DMA addresses to 44 bits.\n"); 634 return dma_set_mask(dev->dev, DMA_BIT_MASK(44)); 635 } 636 return 0; 637 } 638 #else 639 static int vmw_dma_masks(struct vmw_private *dev_priv) 640 { 641 return 0; 642 } 643 #endif 644 645 static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) 646 { 647 struct vmw_private *dev_priv; 648 int ret; 649 uint32_t svga_id; 650 enum vmw_res_type i; 651 bool refuse_dma = false; 652 char host_log[100] = {0}; 653 654 dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL); 655 if (unlikely(!dev_priv)) { 656 DRM_ERROR("Failed allocating a device private struct.\n"); 657 return -ENOMEM; 658 } 659 660 pci_set_master(dev->pdev); 661 662 dev_priv->dev = dev; 663 dev_priv->vmw_chipset = chipset; 664 dev_priv->last_read_seqno = (uint32_t) -100; 665 mutex_init(&dev_priv->cmdbuf_mutex); 666 mutex_init(&dev_priv->release_mutex); 667 mutex_init(&dev_priv->binding_mutex); 668 mutex_init(&dev_priv->requested_layout_mutex); 669 mutex_init(&dev_priv->global_kms_state_mutex); 670 ttm_lock_init(&dev_priv->reservation_sem); 671 spin_lock_init(&dev_priv->resource_lock); 672 spin_lock_init(&dev_priv->hw_lock); 673 spin_lock_init(&dev_priv->waiter_lock); 674 spin_lock_init(&dev_priv->cap_lock); 675 spin_lock_init(&dev_priv->svga_lock); 676 spin_lock_init(&dev_priv->cursor_lock); 677 678 for (i = vmw_res_context; i < vmw_res_max; ++i) { 679 idr_init(&dev_priv->res_idr[i]); 680 INIT_LIST_HEAD(&dev_priv->res_lru[i]); 681 } 682 683 mutex_init(&dev_priv->init_mutex); 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 due to IOMMU setup.\n"); 717 refuse_dma = true; 718 } 719 720 dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE); 721 dev_priv->mmio_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE); 722 dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH); 723 dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT); 724 725 vmw_get_initial_size(dev_priv); 726 727 if (dev_priv->capabilities & SVGA_CAP_GMR2) { 728 dev_priv->max_gmr_ids = 729 vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS); 730 dev_priv->max_gmr_pages = 731 vmw_read(dev_priv, SVGA_REG_GMRS_MAX_PAGES); 732 dev_priv->memory_size = 733 vmw_read(dev_priv, SVGA_REG_MEMORY_SIZE); 734 dev_priv->memory_size -= dev_priv->vram_size; 735 } else { 736 /* 737 * An arbitrary limit of 512MiB on surface 738 * memory. But all HWV8 hardware supports GMR2. 739 */ 740 dev_priv->memory_size = 512*1024*1024; 741 } 742 dev_priv->max_mob_pages = 0; 743 dev_priv->max_mob_size = 0; 744 if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) { 745 uint64_t mem_size = 746 vmw_read(dev_priv, 747 SVGA_REG_SUGGESTED_GBOBJECT_MEM_SIZE_KB); 748 749 /* 750 * Workaround for low memory 2D VMs to compensate for the 751 * allocation taken by fbdev 752 */ 753 if (!(dev_priv->capabilities & SVGA_CAP_3D)) 754 mem_size *= 3; 755 756 dev_priv->max_mob_pages = mem_size * 1024 / PAGE_SIZE; 757 dev_priv->prim_bb_mem = 758 vmw_read(dev_priv, 759 SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM); 760 dev_priv->max_mob_size = 761 vmw_read(dev_priv, SVGA_REG_MOB_MAX_SIZE); 762 dev_priv->stdu_max_width = 763 vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_WIDTH); 764 dev_priv->stdu_max_height = 765 vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_HEIGHT); 766 767 vmw_write(dev_priv, SVGA_REG_DEV_CAP, 768 SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH); 769 dev_priv->texture_max_width = vmw_read(dev_priv, 770 SVGA_REG_DEV_CAP); 771 vmw_write(dev_priv, SVGA_REG_DEV_CAP, 772 SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT); 773 dev_priv->texture_max_height = vmw_read(dev_priv, 774 SVGA_REG_DEV_CAP); 775 } else { 776 dev_priv->texture_max_width = 8192; 777 dev_priv->texture_max_height = 8192; 778 dev_priv->prim_bb_mem = dev_priv->vram_size; 779 } 780 781 vmw_print_capabilities(dev_priv->capabilities); 782 if (dev_priv->capabilities & SVGA_CAP_CAP2_REGISTER) 783 vmw_print_capabilities2(dev_priv->capabilities2); 784 785 ret = vmw_dma_masks(dev_priv); 786 if (unlikely(ret != 0)) 787 goto out_err0; 788 789 if (dev_priv->capabilities & SVGA_CAP_GMR2) { 790 DRM_INFO("Max GMR ids is %u\n", 791 (unsigned)dev_priv->max_gmr_ids); 792 DRM_INFO("Max number of GMR pages is %u\n", 793 (unsigned)dev_priv->max_gmr_pages); 794 DRM_INFO("Max dedicated hypervisor surface memory is %u kiB\n", 795 (unsigned)dev_priv->memory_size / 1024); 796 } 797 DRM_INFO("Maximum display memory size is %u kiB\n", 798 dev_priv->prim_bb_mem / 1024); 799 DRM_INFO("VRAM at 0x%08x size is %u kiB\n", 800 dev_priv->vram_start, dev_priv->vram_size / 1024); 801 DRM_INFO("MMIO at 0x%08x size is %u kiB\n", 802 dev_priv->mmio_start, dev_priv->mmio_size / 1024); 803 804 vmw_master_init(&dev_priv->fbdev_master); 805 ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM); 806 dev_priv->active_master = &dev_priv->fbdev_master; 807 808 dev_priv->mmio_virt = memremap(dev_priv->mmio_start, 809 dev_priv->mmio_size, MEMREMAP_WB); 810 811 if (unlikely(dev_priv->mmio_virt == NULL)) { 812 ret = -ENOMEM; 813 DRM_ERROR("Failed mapping MMIO.\n"); 814 goto out_err0; 815 } 816 817 /* Need mmio memory to check for fifo pitchlock cap. */ 818 if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) && 819 !(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) && 820 !vmw_fifo_have_pitchlock(dev_priv)) { 821 ret = -ENOSYS; 822 DRM_ERROR("Hardware has no pitchlock\n"); 823 goto out_err4; 824 } 825 826 dev_priv->tdev = ttm_object_device_init(&ttm_mem_glob, 12, 827 &vmw_prime_dmabuf_ops); 828 829 if (unlikely(dev_priv->tdev == NULL)) { 830 DRM_ERROR("Unable to initialize TTM object management.\n"); 831 ret = -ENOMEM; 832 goto out_err4; 833 } 834 835 dev->dev_private = dev_priv; 836 837 ret = pci_request_regions(dev->pdev, "vmwgfx probe"); 838 dev_priv->stealth = (ret != 0); 839 if (dev_priv->stealth) { 840 /** 841 * Request at least the mmio PCI resource. 842 */ 843 844 DRM_INFO("It appears like vesafb is loaded. " 845 "Ignore above error if any.\n"); 846 ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe"); 847 if (unlikely(ret != 0)) { 848 DRM_ERROR("Failed reserving the SVGA MMIO resource.\n"); 849 goto out_no_device; 850 } 851 } 852 853 if (dev_priv->capabilities & SVGA_CAP_IRQMASK) { 854 ret = vmw_irq_install(dev, dev->pdev->irq); 855 if (ret != 0) { 856 DRM_ERROR("Failed installing irq: %d\n", ret); 857 goto out_no_irq; 858 } 859 } 860 861 dev_priv->fman = vmw_fence_manager_init(dev_priv); 862 if (unlikely(dev_priv->fman == NULL)) { 863 ret = -ENOMEM; 864 goto out_no_fman; 865 } 866 867 ret = ttm_bo_device_init(&dev_priv->bdev, 868 &vmw_bo_driver, 869 dev->anon_inode->i_mapping, 870 VMWGFX_FILE_PAGE_OFFSET, 871 false); 872 if (unlikely(ret != 0)) { 873 DRM_ERROR("Failed initializing TTM buffer object driver.\n"); 874 goto out_no_bdev; 875 } 876 877 /* 878 * Enable VRAM, but initially don't use it until SVGA is enabled and 879 * unhidden. 880 */ 881 ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM, 882 (dev_priv->vram_size >> PAGE_SHIFT)); 883 if (unlikely(ret != 0)) { 884 DRM_ERROR("Failed initializing memory manager for VRAM.\n"); 885 goto out_no_vram; 886 } 887 dev_priv->bdev.man[TTM_PL_VRAM].use_type = false; 888 889 dev_priv->has_gmr = true; 890 if (((dev_priv->capabilities & (SVGA_CAP_GMR | SVGA_CAP_GMR2)) == 0) || 891 refuse_dma || ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_GMR, 892 VMW_PL_GMR) != 0) { 893 DRM_INFO("No GMR memory available. " 894 "Graphics memory resources are very limited.\n"); 895 dev_priv->has_gmr = false; 896 } 897 898 if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) { 899 dev_priv->has_mob = true; 900 if (ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_MOB, 901 VMW_PL_MOB) != 0) { 902 DRM_INFO("No MOB memory available. " 903 "3D will be disabled.\n"); 904 dev_priv->has_mob = false; 905 } 906 } 907 908 if (dev_priv->has_mob) { 909 spin_lock(&dev_priv->cap_lock); 910 vmw_write(dev_priv, SVGA_REG_DEV_CAP, SVGA3D_DEVCAP_DXCONTEXT); 911 dev_priv->has_dx = !!vmw_read(dev_priv, SVGA_REG_DEV_CAP); 912 spin_unlock(&dev_priv->cap_lock); 913 } 914 915 916 ret = vmw_kms_init(dev_priv); 917 if (unlikely(ret != 0)) 918 goto out_no_kms; 919 vmw_overlay_init(dev_priv); 920 921 ret = vmw_request_device(dev_priv); 922 if (ret) 923 goto out_no_fifo; 924 925 if (dev_priv->has_dx) { 926 /* 927 * SVGA_CAP2_DX2 (DefineGBSurface_v3) is needed for SM4_1 928 * support 929 */ 930 if ((dev_priv->capabilities2 & SVGA_CAP2_DX2) != 0) { 931 vmw_write(dev_priv, SVGA_REG_DEV_CAP, 932 SVGA3D_DEVCAP_SM41); 933 dev_priv->has_sm4_1 = vmw_read(dev_priv, 934 SVGA_REG_DEV_CAP); 935 } 936 } 937 938 DRM_INFO("DX: %s\n", dev_priv->has_dx ? "yes." : "no."); 939 DRM_INFO("Atomic: %s\n", (dev->driver->driver_features & DRIVER_ATOMIC) 940 ? "yes." : "no."); 941 DRM_INFO("SM4_1: %s\n", dev_priv->has_sm4_1 ? "yes." : "no."); 942 943 snprintf(host_log, sizeof(host_log), "vmwgfx: %s-%s", 944 VMWGFX_REPO, VMWGFX_GIT_VERSION); 945 vmw_host_log(host_log); 946 947 memset(host_log, 0, sizeof(host_log)); 948 snprintf(host_log, sizeof(host_log), "vmwgfx: Module Version: %d.%d.%d", 949 VMWGFX_DRIVER_MAJOR, VMWGFX_DRIVER_MINOR, 950 VMWGFX_DRIVER_PATCHLEVEL); 951 vmw_host_log(host_log); 952 953 if (dev_priv->enable_fb) { 954 vmw_fifo_resource_inc(dev_priv); 955 vmw_svga_enable(dev_priv); 956 vmw_fb_init(dev_priv); 957 } 958 959 dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier; 960 register_pm_notifier(&dev_priv->pm_nb); 961 962 return 0; 963 964 out_no_fifo: 965 vmw_overlay_close(dev_priv); 966 vmw_kms_close(dev_priv); 967 out_no_kms: 968 if (dev_priv->has_mob) 969 (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB); 970 if (dev_priv->has_gmr) 971 (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR); 972 (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM); 973 out_no_vram: 974 (void)ttm_bo_device_release(&dev_priv->bdev); 975 out_no_bdev: 976 vmw_fence_manager_takedown(dev_priv->fman); 977 out_no_fman: 978 if (dev_priv->capabilities & SVGA_CAP_IRQMASK) 979 vmw_irq_uninstall(dev_priv->dev); 980 out_no_irq: 981 if (dev_priv->stealth) 982 pci_release_region(dev->pdev, 2); 983 else 984 pci_release_regions(dev->pdev); 985 out_no_device: 986 ttm_object_device_release(&dev_priv->tdev); 987 out_err4: 988 memunmap(dev_priv->mmio_virt); 989 out_err0: 990 for (i = vmw_res_context; i < vmw_res_max; ++i) 991 idr_destroy(&dev_priv->res_idr[i]); 992 993 if (dev_priv->ctx.staged_bindings) 994 vmw_binding_state_free(dev_priv->ctx.staged_bindings); 995 kfree(dev_priv); 996 return ret; 997 } 998 999 static void vmw_driver_unload(struct drm_device *dev) 1000 { 1001 struct vmw_private *dev_priv = vmw_priv(dev); 1002 enum vmw_res_type i; 1003 1004 unregister_pm_notifier(&dev_priv->pm_nb); 1005 1006 if (dev_priv->ctx.res_ht_initialized) 1007 drm_ht_remove(&dev_priv->ctx.res_ht); 1008 vfree(dev_priv->ctx.cmd_bounce); 1009 if (dev_priv->enable_fb) { 1010 vmw_fb_off(dev_priv); 1011 vmw_fb_close(dev_priv); 1012 vmw_fifo_resource_dec(dev_priv); 1013 vmw_svga_disable(dev_priv); 1014 } 1015 1016 vmw_kms_close(dev_priv); 1017 vmw_overlay_close(dev_priv); 1018 1019 if (dev_priv->has_gmr) 1020 (void)ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR); 1021 (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM); 1022 1023 vmw_release_device_early(dev_priv); 1024 if (dev_priv->has_mob) 1025 (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB); 1026 (void) ttm_bo_device_release(&dev_priv->bdev); 1027 vmw_release_device_late(dev_priv); 1028 vmw_fence_manager_takedown(dev_priv->fman); 1029 if (dev_priv->capabilities & SVGA_CAP_IRQMASK) 1030 vmw_irq_uninstall(dev_priv->dev); 1031 if (dev_priv->stealth) 1032 pci_release_region(dev->pdev, 2); 1033 else 1034 pci_release_regions(dev->pdev); 1035 1036 ttm_object_device_release(&dev_priv->tdev); 1037 memunmap(dev_priv->mmio_virt); 1038 if (dev_priv->ctx.staged_bindings) 1039 vmw_binding_state_free(dev_priv->ctx.staged_bindings); 1040 1041 for (i = vmw_res_context; i < vmw_res_max; ++i) 1042 idr_destroy(&dev_priv->res_idr[i]); 1043 1044 kfree(dev_priv); 1045 } 1046 1047 static void vmw_postclose(struct drm_device *dev, 1048 struct drm_file *file_priv) 1049 { 1050 struct vmw_fpriv *vmw_fp; 1051 1052 vmw_fp = vmw_fpriv(file_priv); 1053 1054 if (vmw_fp->locked_master) { 1055 struct vmw_master *vmaster = 1056 vmw_master(vmw_fp->locked_master); 1057 1058 ttm_lock_set_kill(&vmaster->lock, true, SIGTERM); 1059 ttm_vt_unlock(&vmaster->lock); 1060 drm_master_put(&vmw_fp->locked_master); 1061 } 1062 1063 ttm_object_file_release(&vmw_fp->tfile); 1064 kfree(vmw_fp); 1065 } 1066 1067 static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv) 1068 { 1069 struct vmw_private *dev_priv = vmw_priv(dev); 1070 struct vmw_fpriv *vmw_fp; 1071 int ret = -ENOMEM; 1072 1073 vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL); 1074 if (unlikely(!vmw_fp)) 1075 return ret; 1076 1077 vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev, 10); 1078 if (unlikely(vmw_fp->tfile == NULL)) 1079 goto out_no_tfile; 1080 1081 file_priv->driver_priv = vmw_fp; 1082 1083 return 0; 1084 1085 out_no_tfile: 1086 kfree(vmw_fp); 1087 return ret; 1088 } 1089 1090 static struct vmw_master *vmw_master_check(struct drm_device *dev, 1091 struct drm_file *file_priv, 1092 unsigned int flags) 1093 { 1094 int ret; 1095 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); 1096 struct vmw_master *vmaster; 1097 1098 if (!drm_is_primary_client(file_priv) || !(flags & DRM_AUTH)) 1099 return NULL; 1100 1101 ret = mutex_lock_interruptible(&dev->master_mutex); 1102 if (unlikely(ret != 0)) 1103 return ERR_PTR(-ERESTARTSYS); 1104 1105 if (drm_is_current_master(file_priv)) { 1106 mutex_unlock(&dev->master_mutex); 1107 return NULL; 1108 } 1109 1110 /* 1111 * Check if we were previously master, but now dropped. In that 1112 * case, allow at least render node functionality. 1113 */ 1114 if (vmw_fp->locked_master) { 1115 mutex_unlock(&dev->master_mutex); 1116 1117 if (flags & DRM_RENDER_ALLOW) 1118 return NULL; 1119 1120 DRM_ERROR("Dropped master trying to access ioctl that " 1121 "requires authentication.\n"); 1122 return ERR_PTR(-EACCES); 1123 } 1124 mutex_unlock(&dev->master_mutex); 1125 1126 /* 1127 * Take the TTM lock. Possibly sleep waiting for the authenticating 1128 * master to become master again, or for a SIGTERM if the 1129 * authenticating master exits. 1130 */ 1131 vmaster = vmw_master(file_priv->master); 1132 ret = ttm_read_lock(&vmaster->lock, true); 1133 if (unlikely(ret != 0)) 1134 vmaster = ERR_PTR(ret); 1135 1136 return vmaster; 1137 } 1138 1139 static long vmw_generic_ioctl(struct file *filp, unsigned int cmd, 1140 unsigned long arg, 1141 long (*ioctl_func)(struct file *, unsigned int, 1142 unsigned long)) 1143 { 1144 struct drm_file *file_priv = filp->private_data; 1145 struct drm_device *dev = file_priv->minor->dev; 1146 unsigned int nr = DRM_IOCTL_NR(cmd); 1147 struct vmw_master *vmaster; 1148 unsigned int flags; 1149 long ret; 1150 1151 /* 1152 * Do extra checking on driver private ioctls. 1153 */ 1154 1155 if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) 1156 && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) { 1157 const struct drm_ioctl_desc *ioctl = 1158 &vmw_ioctls[nr - DRM_COMMAND_BASE]; 1159 1160 if (nr == DRM_COMMAND_BASE + DRM_VMW_EXECBUF) { 1161 ret = (long) drm_ioctl_permit(ioctl->flags, file_priv); 1162 if (unlikely(ret != 0)) 1163 return ret; 1164 1165 if (unlikely((cmd & (IOC_IN | IOC_OUT)) != IOC_IN)) 1166 goto out_io_encoding; 1167 1168 return (long) vmw_execbuf_ioctl(dev, arg, file_priv, 1169 _IOC_SIZE(cmd)); 1170 } else if (nr == DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT) { 1171 if (!drm_is_current_master(file_priv) && 1172 !capable(CAP_SYS_ADMIN)) 1173 return -EACCES; 1174 } 1175 1176 if (unlikely(ioctl->cmd != cmd)) 1177 goto out_io_encoding; 1178 1179 flags = ioctl->flags; 1180 } else if (!drm_ioctl_flags(nr, &flags)) 1181 return -EINVAL; 1182 1183 vmaster = vmw_master_check(dev, file_priv, flags); 1184 if (IS_ERR(vmaster)) { 1185 ret = PTR_ERR(vmaster); 1186 1187 if (ret != -ERESTARTSYS) 1188 DRM_INFO("IOCTL ERROR Command %d, Error %ld.\n", 1189 nr, ret); 1190 return ret; 1191 } 1192 1193 ret = ioctl_func(filp, cmd, arg); 1194 if (vmaster) 1195 ttm_read_unlock(&vmaster->lock); 1196 1197 return ret; 1198 1199 out_io_encoding: 1200 DRM_ERROR("Invalid command format, ioctl %d\n", 1201 nr - DRM_COMMAND_BASE); 1202 1203 return -EINVAL; 1204 } 1205 1206 static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd, 1207 unsigned long arg) 1208 { 1209 return vmw_generic_ioctl(filp, cmd, arg, &drm_ioctl); 1210 } 1211 1212 #ifdef CONFIG_COMPAT 1213 static long vmw_compat_ioctl(struct file *filp, unsigned int cmd, 1214 unsigned long arg) 1215 { 1216 return vmw_generic_ioctl(filp, cmd, arg, &drm_compat_ioctl); 1217 } 1218 #endif 1219 1220 static void vmw_lastclose(struct drm_device *dev) 1221 { 1222 } 1223 1224 static void vmw_master_init(struct vmw_master *vmaster) 1225 { 1226 ttm_lock_init(&vmaster->lock); 1227 } 1228 1229 static int vmw_master_create(struct drm_device *dev, 1230 struct drm_master *master) 1231 { 1232 struct vmw_master *vmaster; 1233 1234 vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL); 1235 if (unlikely(!vmaster)) 1236 return -ENOMEM; 1237 1238 vmw_master_init(vmaster); 1239 ttm_lock_set_kill(&vmaster->lock, true, SIGTERM); 1240 master->driver_priv = vmaster; 1241 1242 return 0; 1243 } 1244 1245 static void vmw_master_destroy(struct drm_device *dev, 1246 struct drm_master *master) 1247 { 1248 struct vmw_master *vmaster = vmw_master(master); 1249 1250 master->driver_priv = NULL; 1251 kfree(vmaster); 1252 } 1253 1254 static int vmw_master_set(struct drm_device *dev, 1255 struct drm_file *file_priv, 1256 bool from_open) 1257 { 1258 struct vmw_private *dev_priv = vmw_priv(dev); 1259 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); 1260 struct vmw_master *active = dev_priv->active_master; 1261 struct vmw_master *vmaster = vmw_master(file_priv->master); 1262 int ret = 0; 1263 1264 if (active) { 1265 BUG_ON(active != &dev_priv->fbdev_master); 1266 ret = ttm_vt_lock(&active->lock, false, vmw_fp->tfile); 1267 if (unlikely(ret != 0)) 1268 return ret; 1269 1270 ttm_lock_set_kill(&active->lock, true, SIGTERM); 1271 dev_priv->active_master = NULL; 1272 } 1273 1274 ttm_lock_set_kill(&vmaster->lock, false, SIGTERM); 1275 if (!from_open) { 1276 ttm_vt_unlock(&vmaster->lock); 1277 BUG_ON(vmw_fp->locked_master != file_priv->master); 1278 drm_master_put(&vmw_fp->locked_master); 1279 } 1280 1281 dev_priv->active_master = vmaster; 1282 drm_sysfs_hotplug_event(dev); 1283 1284 return 0; 1285 } 1286 1287 static void vmw_master_drop(struct drm_device *dev, 1288 struct drm_file *file_priv) 1289 { 1290 struct vmw_private *dev_priv = vmw_priv(dev); 1291 struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); 1292 struct vmw_master *vmaster = vmw_master(file_priv->master); 1293 int ret; 1294 1295 /** 1296 * Make sure the master doesn't disappear while we have 1297 * it locked. 1298 */ 1299 1300 vmw_fp->locked_master = drm_master_get(file_priv->master); 1301 ret = ttm_vt_lock(&vmaster->lock, false, vmw_fp->tfile); 1302 vmw_kms_legacy_hotspot_clear(dev_priv); 1303 if (unlikely((ret != 0))) { 1304 DRM_ERROR("Unable to lock TTM at VT switch.\n"); 1305 drm_master_put(&vmw_fp->locked_master); 1306 } 1307 1308 ttm_lock_set_kill(&vmaster->lock, false, SIGTERM); 1309 1310 if (!dev_priv->enable_fb) 1311 vmw_svga_disable(dev_priv); 1312 1313 dev_priv->active_master = &dev_priv->fbdev_master; 1314 ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM); 1315 ttm_vt_unlock(&dev_priv->fbdev_master.lock); 1316 } 1317 1318 /** 1319 * __vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM. 1320 * 1321 * @dev_priv: Pointer to device private struct. 1322 * Needs the reservation sem to be held in non-exclusive mode. 1323 */ 1324 static void __vmw_svga_enable(struct vmw_private *dev_priv) 1325 { 1326 spin_lock(&dev_priv->svga_lock); 1327 if (!dev_priv->bdev.man[TTM_PL_VRAM].use_type) { 1328 vmw_write(dev_priv, SVGA_REG_ENABLE, SVGA_REG_ENABLE); 1329 dev_priv->bdev.man[TTM_PL_VRAM].use_type = true; 1330 } 1331 spin_unlock(&dev_priv->svga_lock); 1332 } 1333 1334 /** 1335 * vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM. 1336 * 1337 * @dev_priv: Pointer to device private struct. 1338 */ 1339 void vmw_svga_enable(struct vmw_private *dev_priv) 1340 { 1341 (void) ttm_read_lock(&dev_priv->reservation_sem, false); 1342 __vmw_svga_enable(dev_priv); 1343 ttm_read_unlock(&dev_priv->reservation_sem); 1344 } 1345 1346 /** 1347 * __vmw_svga_disable - Disable SVGA mode and use of VRAM. 1348 * 1349 * @dev_priv: Pointer to device private struct. 1350 * Needs the reservation sem to be held in exclusive mode. 1351 * Will not empty VRAM. VRAM must be emptied by caller. 1352 */ 1353 static void __vmw_svga_disable(struct vmw_private *dev_priv) 1354 { 1355 spin_lock(&dev_priv->svga_lock); 1356 if (dev_priv->bdev.man[TTM_PL_VRAM].use_type) { 1357 dev_priv->bdev.man[TTM_PL_VRAM].use_type = false; 1358 vmw_write(dev_priv, SVGA_REG_ENABLE, 1359 SVGA_REG_ENABLE_HIDE | 1360 SVGA_REG_ENABLE_ENABLE); 1361 } 1362 spin_unlock(&dev_priv->svga_lock); 1363 } 1364 1365 /** 1366 * vmw_svga_disable - Disable SVGA_MODE, and use of VRAM. Keep the fifo 1367 * running. 1368 * 1369 * @dev_priv: Pointer to device private struct. 1370 * Will empty VRAM. 1371 */ 1372 void vmw_svga_disable(struct vmw_private *dev_priv) 1373 { 1374 /* 1375 * Disabling SVGA will turn off device modesetting capabilities, so 1376 * notify KMS about that so that it doesn't cache atomic state that 1377 * isn't valid anymore, for example crtcs turned on. 1378 * Strictly we'd want to do this under the SVGA lock (or an SVGA mutex), 1379 * but vmw_kms_lost_device() takes the reservation sem and thus we'll 1380 * end up with lock order reversal. Thus, a master may actually perform 1381 * a new modeset just after we call vmw_kms_lost_device() and race with 1382 * vmw_svga_disable(), but that should at worst cause atomic KMS state 1383 * to be inconsistent with the device, causing modesetting problems. 1384 * 1385 */ 1386 vmw_kms_lost_device(dev_priv->dev); 1387 ttm_write_lock(&dev_priv->reservation_sem, false); 1388 spin_lock(&dev_priv->svga_lock); 1389 if (dev_priv->bdev.man[TTM_PL_VRAM].use_type) { 1390 dev_priv->bdev.man[TTM_PL_VRAM].use_type = false; 1391 spin_unlock(&dev_priv->svga_lock); 1392 if (ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM)) 1393 DRM_ERROR("Failed evicting VRAM buffers.\n"); 1394 vmw_write(dev_priv, SVGA_REG_ENABLE, 1395 SVGA_REG_ENABLE_HIDE | 1396 SVGA_REG_ENABLE_ENABLE); 1397 } else 1398 spin_unlock(&dev_priv->svga_lock); 1399 ttm_write_unlock(&dev_priv->reservation_sem); 1400 } 1401 1402 static void vmw_remove(struct pci_dev *pdev) 1403 { 1404 struct drm_device *dev = pci_get_drvdata(pdev); 1405 1406 pci_disable_device(pdev); 1407 drm_put_dev(dev); 1408 } 1409 1410 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val, 1411 void *ptr) 1412 { 1413 struct vmw_private *dev_priv = 1414 container_of(nb, struct vmw_private, pm_nb); 1415 1416 switch (val) { 1417 case PM_HIBERNATION_PREPARE: 1418 /* 1419 * Take the reservation sem in write mode, which will make sure 1420 * there are no other processes holding a buffer object 1421 * reservation, meaning we should be able to evict all buffer 1422 * objects if needed. 1423 * Once user-space processes have been frozen, we can release 1424 * the lock again. 1425 */ 1426 ttm_suspend_lock(&dev_priv->reservation_sem); 1427 dev_priv->suspend_locked = true; 1428 break; 1429 case PM_POST_HIBERNATION: 1430 case PM_POST_RESTORE: 1431 if (READ_ONCE(dev_priv->suspend_locked)) { 1432 dev_priv->suspend_locked = false; 1433 ttm_suspend_unlock(&dev_priv->reservation_sem); 1434 } 1435 break; 1436 default: 1437 break; 1438 } 1439 return 0; 1440 } 1441 1442 static int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state) 1443 { 1444 struct drm_device *dev = pci_get_drvdata(pdev); 1445 struct vmw_private *dev_priv = vmw_priv(dev); 1446 1447 if (dev_priv->refuse_hibernation) 1448 return -EBUSY; 1449 1450 pci_save_state(pdev); 1451 pci_disable_device(pdev); 1452 pci_set_power_state(pdev, PCI_D3hot); 1453 return 0; 1454 } 1455 1456 static int vmw_pci_resume(struct pci_dev *pdev) 1457 { 1458 pci_set_power_state(pdev, PCI_D0); 1459 pci_restore_state(pdev); 1460 return pci_enable_device(pdev); 1461 } 1462 1463 static int vmw_pm_suspend(struct device *kdev) 1464 { 1465 struct pci_dev *pdev = to_pci_dev(kdev); 1466 struct pm_message dummy; 1467 1468 dummy.event = 0; 1469 1470 return vmw_pci_suspend(pdev, dummy); 1471 } 1472 1473 static int vmw_pm_resume(struct device *kdev) 1474 { 1475 struct pci_dev *pdev = to_pci_dev(kdev); 1476 1477 return vmw_pci_resume(pdev); 1478 } 1479 1480 static int vmw_pm_freeze(struct device *kdev) 1481 { 1482 struct pci_dev *pdev = to_pci_dev(kdev); 1483 struct drm_device *dev = pci_get_drvdata(pdev); 1484 struct vmw_private *dev_priv = vmw_priv(dev); 1485 int ret; 1486 1487 /* 1488 * Unlock for vmw_kms_suspend. 1489 * No user-space processes should be running now. 1490 */ 1491 ttm_suspend_unlock(&dev_priv->reservation_sem); 1492 ret = vmw_kms_suspend(dev_priv->dev); 1493 if (ret) { 1494 ttm_suspend_lock(&dev_priv->reservation_sem); 1495 DRM_ERROR("Failed to freeze modesetting.\n"); 1496 return ret; 1497 } 1498 if (dev_priv->enable_fb) 1499 vmw_fb_off(dev_priv); 1500 1501 ttm_suspend_lock(&dev_priv->reservation_sem); 1502 vmw_execbuf_release_pinned_bo(dev_priv); 1503 vmw_resource_evict_all(dev_priv); 1504 vmw_release_device_early(dev_priv); 1505 ttm_bo_swapout_all(&dev_priv->bdev); 1506 if (dev_priv->enable_fb) 1507 vmw_fifo_resource_dec(dev_priv); 1508 if (atomic_read(&dev_priv->num_fifo_resources) != 0) { 1509 DRM_ERROR("Can't hibernate while 3D resources are active.\n"); 1510 if (dev_priv->enable_fb) 1511 vmw_fifo_resource_inc(dev_priv); 1512 WARN_ON(vmw_request_device_late(dev_priv)); 1513 dev_priv->suspend_locked = false; 1514 ttm_suspend_unlock(&dev_priv->reservation_sem); 1515 if (dev_priv->suspend_state) 1516 vmw_kms_resume(dev); 1517 if (dev_priv->enable_fb) 1518 vmw_fb_on(dev_priv); 1519 return -EBUSY; 1520 } 1521 1522 vmw_fence_fifo_down(dev_priv->fman); 1523 __vmw_svga_disable(dev_priv); 1524 1525 vmw_release_device_late(dev_priv); 1526 return 0; 1527 } 1528 1529 static int vmw_pm_restore(struct device *kdev) 1530 { 1531 struct pci_dev *pdev = to_pci_dev(kdev); 1532 struct drm_device *dev = pci_get_drvdata(pdev); 1533 struct vmw_private *dev_priv = vmw_priv(dev); 1534 int ret; 1535 1536 vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2); 1537 (void) vmw_read(dev_priv, SVGA_REG_ID); 1538 1539 if (dev_priv->enable_fb) 1540 vmw_fifo_resource_inc(dev_priv); 1541 1542 ret = vmw_request_device(dev_priv); 1543 if (ret) 1544 return ret; 1545 1546 if (dev_priv->enable_fb) 1547 __vmw_svga_enable(dev_priv); 1548 1549 vmw_fence_fifo_up(dev_priv->fman); 1550 dev_priv->suspend_locked = false; 1551 ttm_suspend_unlock(&dev_priv->reservation_sem); 1552 if (dev_priv->suspend_state) 1553 vmw_kms_resume(dev_priv->dev); 1554 1555 if (dev_priv->enable_fb) 1556 vmw_fb_on(dev_priv); 1557 1558 return 0; 1559 } 1560 1561 static const struct dev_pm_ops vmw_pm_ops = { 1562 .freeze = vmw_pm_freeze, 1563 .thaw = vmw_pm_restore, 1564 .restore = vmw_pm_restore, 1565 .suspend = vmw_pm_suspend, 1566 .resume = vmw_pm_resume, 1567 }; 1568 1569 static const struct file_operations vmwgfx_driver_fops = { 1570 .owner = THIS_MODULE, 1571 .open = drm_open, 1572 .release = drm_release, 1573 .unlocked_ioctl = vmw_unlocked_ioctl, 1574 .mmap = vmw_mmap, 1575 .poll = vmw_fops_poll, 1576 .read = vmw_fops_read, 1577 #if defined(CONFIG_COMPAT) 1578 .compat_ioctl = vmw_compat_ioctl, 1579 #endif 1580 .llseek = noop_llseek, 1581 }; 1582 1583 static struct drm_driver driver = { 1584 .driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | 1585 DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER | DRIVER_ATOMIC, 1586 .load = vmw_driver_load, 1587 .unload = vmw_driver_unload, 1588 .lastclose = vmw_lastclose, 1589 .get_vblank_counter = vmw_get_vblank_counter, 1590 .enable_vblank = vmw_enable_vblank, 1591 .disable_vblank = vmw_disable_vblank, 1592 .ioctls = vmw_ioctls, 1593 .num_ioctls = ARRAY_SIZE(vmw_ioctls), 1594 .master_create = vmw_master_create, 1595 .master_destroy = vmw_master_destroy, 1596 .master_set = vmw_master_set, 1597 .master_drop = vmw_master_drop, 1598 .open = vmw_driver_open, 1599 .postclose = vmw_postclose, 1600 1601 .dumb_create = vmw_dumb_create, 1602 .dumb_map_offset = vmw_dumb_map_offset, 1603 .dumb_destroy = vmw_dumb_destroy, 1604 1605 .prime_fd_to_handle = vmw_prime_fd_to_handle, 1606 .prime_handle_to_fd = vmw_prime_handle_to_fd, 1607 1608 .fops = &vmwgfx_driver_fops, 1609 .name = VMWGFX_DRIVER_NAME, 1610 .desc = VMWGFX_DRIVER_DESC, 1611 .date = VMWGFX_DRIVER_DATE, 1612 .major = VMWGFX_DRIVER_MAJOR, 1613 .minor = VMWGFX_DRIVER_MINOR, 1614 .patchlevel = VMWGFX_DRIVER_PATCHLEVEL 1615 }; 1616 1617 static struct pci_driver vmw_pci_driver = { 1618 .name = VMWGFX_DRIVER_NAME, 1619 .id_table = vmw_pci_id_list, 1620 .probe = vmw_probe, 1621 .remove = vmw_remove, 1622 .driver = { 1623 .pm = &vmw_pm_ops 1624 } 1625 }; 1626 1627 static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 1628 { 1629 return drm_get_pci_dev(pdev, ent, &driver); 1630 } 1631 1632 static int __init vmwgfx_init(void) 1633 { 1634 int ret; 1635 1636 if (vgacon_text_force()) 1637 return -EINVAL; 1638 1639 ret = pci_register_driver(&vmw_pci_driver); 1640 if (ret) 1641 DRM_ERROR("Failed initializing DRM.\n"); 1642 return ret; 1643 } 1644 1645 static void __exit vmwgfx_exit(void) 1646 { 1647 pci_unregister_driver(&vmw_pci_driver); 1648 } 1649 1650 module_init(vmwgfx_init); 1651 module_exit(vmwgfx_exit); 1652 1653 MODULE_AUTHOR("VMware Inc. and others"); 1654 MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device"); 1655 MODULE_LICENSE("GPL and additional rights"); 1656 MODULE_VERSION(__stringify(VMWGFX_DRIVER_MAJOR) "." 1657 __stringify(VMWGFX_DRIVER_MINOR) "." 1658 __stringify(VMWGFX_DRIVER_PATCHLEVEL) "." 1659 "0"); 1660