1// SPDX-License-Identifier: GPL-2.0 OR MIT
   2/**************************************************************************
   3 *
   4 * Copyright 2009-2015 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 <drm/ttm/ttm_placement.h>
  29
  30#include "vmwgfx_drv.h"
  31#include "vmwgfx_resource_priv.h"
  32#include "vmwgfx_so.h"
  33#include "vmwgfx_binding.h"
 
  34#include "device_include/svga3d_surfacedefs.h"
  35
  36#define SVGA3D_FLAGS_64(upper32, lower32) (((uint64_t)upper32 << 32) | lower32)
  37#define SVGA3D_FLAGS_UPPER_32(svga3d_flags) (svga3d_flags >> 32)
  38#define SVGA3D_FLAGS_LOWER_32(svga3d_flags) \
  39	(svga3d_flags & ((uint64_t)U32_MAX))
  40
  41/**
  42 * struct vmw_user_surface - User-space visible surface resource
  43 *
  44 * @base:           The TTM base object handling user-space visibility.
  45 * @srf:            The surface metadata.
  46 * @size:           TTM accounting size for the surface.
  47 * @master: master of the creating client. Used for security check.
  48 */
  49struct vmw_user_surface {
  50	struct ttm_prime_object prime;
  51	struct vmw_surface srf;
  52	uint32_t size;
  53	struct drm_master *master;
  54	struct ttm_base_object *backup_base;
  55};
  56
  57/**
  58 * struct vmw_surface_offset - Backing store mip level offset info
  59 *
  60 * @face:           Surface face.
  61 * @mip:            Mip level.
  62 * @bo_offset:      Offset into backing store of this mip level.
  63 *
  64 */
  65struct vmw_surface_offset {
  66	uint32_t face;
  67	uint32_t mip;
  68	uint32_t bo_offset;
  69};
  70
  71static void vmw_user_surface_free(struct vmw_resource *res);
  72static struct vmw_resource *
  73vmw_user_surface_base_to_res(struct ttm_base_object *base);
  74static int vmw_legacy_srf_bind(struct vmw_resource *res,
  75			       struct ttm_validate_buffer *val_buf);
  76static int vmw_legacy_srf_unbind(struct vmw_resource *res,
  77				 bool readback,
  78				 struct ttm_validate_buffer *val_buf);
  79static int vmw_legacy_srf_create(struct vmw_resource *res);
  80static int vmw_legacy_srf_destroy(struct vmw_resource *res);
  81static int vmw_gb_surface_create(struct vmw_resource *res);
  82static int vmw_gb_surface_bind(struct vmw_resource *res,
  83			       struct ttm_validate_buffer *val_buf);
  84static int vmw_gb_surface_unbind(struct vmw_resource *res,
  85				 bool readback,
  86				 struct ttm_validate_buffer *val_buf);
  87static int vmw_gb_surface_destroy(struct vmw_resource *res);
  88static int
  89vmw_gb_surface_define_internal(struct drm_device *dev,
  90			       struct drm_vmw_gb_surface_create_ext_req *req,
  91			       struct drm_vmw_gb_surface_create_rep *rep,
  92			       struct drm_file *file_priv);
  93static int
  94vmw_gb_surface_reference_internal(struct drm_device *dev,
  95				  struct drm_vmw_surface_arg *req,
  96				  struct drm_vmw_gb_surface_ref_ext_rep *rep,
  97				  struct drm_file *file_priv);
  98
  99static const struct vmw_user_resource_conv user_surface_conv = {
 100	.object_type = VMW_RES_SURFACE,
 101	.base_obj_to_res = vmw_user_surface_base_to_res,
 102	.res_free = vmw_user_surface_free
 103};
 104
 105const struct vmw_user_resource_conv *user_surface_converter =
 106	&user_surface_conv;
 107
 108
 109static uint64_t vmw_user_surface_size;
 110
 111static const struct vmw_res_func vmw_legacy_surface_func = {
 112	.res_type = vmw_res_surface,
 113	.needs_backup = false,
 114	.may_evict = true,
 115	.prio = 1,
 116	.dirty_prio = 1,
 117	.type_name = "legacy surfaces",
 118	.backup_placement = &vmw_srf_placement,
 119	.create = &vmw_legacy_srf_create,
 120	.destroy = &vmw_legacy_srf_destroy,
 121	.bind = &vmw_legacy_srf_bind,
 122	.unbind = &vmw_legacy_srf_unbind
 123};
 124
 125static const struct vmw_res_func vmw_gb_surface_func = {
 126	.res_type = vmw_res_surface,
 127	.needs_backup = true,
 128	.may_evict = true,
 129	.prio = 1,
 130	.dirty_prio = 2,
 131	.type_name = "guest backed surfaces",
 132	.backup_placement = &vmw_mob_placement,
 133	.create = vmw_gb_surface_create,
 134	.destroy = vmw_gb_surface_destroy,
 135	.bind = vmw_gb_surface_bind,
 136	.unbind = vmw_gb_surface_unbind
 137};
 138
 139/**
 140 * struct vmw_surface_dma - SVGA3D DMA command
 141 */
 142struct vmw_surface_dma {
 143	SVGA3dCmdHeader header;
 144	SVGA3dCmdSurfaceDMA body;
 145	SVGA3dCopyBox cb;
 146	SVGA3dCmdSurfaceDMASuffix suffix;
 147};
 148
 149/**
 150 * struct vmw_surface_define - SVGA3D Surface Define command
 151 */
 152struct vmw_surface_define {
 153	SVGA3dCmdHeader header;
 154	SVGA3dCmdDefineSurface body;
 155};
 156
 157/**
 158 * struct vmw_surface_destroy - SVGA3D Surface Destroy command
 159 */
 160struct vmw_surface_destroy {
 161	SVGA3dCmdHeader header;
 162	SVGA3dCmdDestroySurface body;
 163};
 164
 165
 166/**
 167 * vmw_surface_dma_size - Compute fifo size for a dma command.
 168 *
 169 * @srf: Pointer to a struct vmw_surface
 170 *
 171 * Computes the required size for a surface dma command for backup or
 172 * restoration of the surface represented by @srf.
 173 */
 174static inline uint32_t vmw_surface_dma_size(const struct vmw_surface *srf)
 175{
 176	return srf->num_sizes * sizeof(struct vmw_surface_dma);
 177}
 178
 179
 180/**
 181 * vmw_surface_define_size - Compute fifo size for a surface define command.
 182 *
 183 * @srf: Pointer to a struct vmw_surface
 184 *
 185 * Computes the required size for a surface define command for the definition
 186 * of the surface represented by @srf.
 187 */
 188static inline uint32_t vmw_surface_define_size(const struct vmw_surface *srf)
 189{
 190	return sizeof(struct vmw_surface_define) + srf->num_sizes *
 191		sizeof(SVGA3dSize);
 192}
 193
 194
 195/**
 196 * vmw_surface_destroy_size - Compute fifo size for a surface destroy command.
 197 *
 198 * Computes the required size for a surface destroy command for the destruction
 199 * of a hw surface.
 200 */
 201static inline uint32_t vmw_surface_destroy_size(void)
 202{
 203	return sizeof(struct vmw_surface_destroy);
 204}
 205
 206/**
 207 * vmw_surface_destroy_encode - Encode a surface_destroy command.
 208 *
 209 * @id: The surface id
 210 * @cmd_space: Pointer to memory area in which the commands should be encoded.
 211 */
 212static void vmw_surface_destroy_encode(uint32_t id,
 213				       void *cmd_space)
 214{
 215	struct vmw_surface_destroy *cmd = (struct vmw_surface_destroy *)
 216		cmd_space;
 217
 218	cmd->header.id = SVGA_3D_CMD_SURFACE_DESTROY;
 219	cmd->header.size = sizeof(cmd->body);
 220	cmd->body.sid = id;
 221}
 222
 223/**
 224 * vmw_surface_define_encode - Encode a surface_define command.
 225 *
 226 * @srf: Pointer to a struct vmw_surface object.
 227 * @cmd_space: Pointer to memory area in which the commands should be encoded.
 228 */
 229static void vmw_surface_define_encode(const struct vmw_surface *srf,
 230				      void *cmd_space)
 231{
 232	struct vmw_surface_define *cmd = (struct vmw_surface_define *)
 233		cmd_space;
 234	struct drm_vmw_size *src_size;
 235	SVGA3dSize *cmd_size;
 236	uint32_t cmd_len;
 237	int i;
 238
 239	cmd_len = sizeof(cmd->body) + srf->num_sizes * sizeof(SVGA3dSize);
 240
 241	cmd->header.id = SVGA_3D_CMD_SURFACE_DEFINE;
 242	cmd->header.size = cmd_len;
 243	cmd->body.sid = srf->res.id;
 244	/*
 245	 * Downcast of surfaceFlags, was upcasted when received from user-space,
 246	 * since driver internally stores as 64 bit.
 247	 * For legacy surface define only 32 bit flag is supported.
 248	 */
 249	cmd->body.surfaceFlags = (SVGA3dSurface1Flags)srf->flags;
 250	cmd->body.format = srf->format;
 251	for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i)
 252		cmd->body.face[i].numMipLevels = srf->mip_levels[i];
 253
 254	cmd += 1;
 255	cmd_size = (SVGA3dSize *) cmd;
 256	src_size = srf->sizes;
 257
 258	for (i = 0; i < srf->num_sizes; ++i, cmd_size++, src_size++) {
 259		cmd_size->width = src_size->width;
 260		cmd_size->height = src_size->height;
 261		cmd_size->depth = src_size->depth;
 262	}
 263}
 264
 265/**
 266 * vmw_surface_dma_encode - Encode a surface_dma command.
 267 *
 268 * @srf: Pointer to a struct vmw_surface object.
 269 * @cmd_space: Pointer to memory area in which the commands should be encoded.
 270 * @ptr: Pointer to an SVGAGuestPtr indicating where the surface contents
 271 * should be placed or read from.
 272 * @to_surface: Boolean whether to DMA to the surface or from the surface.
 273 */
 274static void vmw_surface_dma_encode(struct vmw_surface *srf,
 275				   void *cmd_space,
 276				   const SVGAGuestPtr *ptr,
 277				   bool to_surface)
 278{
 279	uint32_t i;
 280	struct vmw_surface_dma *cmd = (struct vmw_surface_dma *)cmd_space;
 281	const struct svga3d_surface_desc *desc =
 282		svga3dsurface_get_desc(srf->format);
 283
 284	for (i = 0; i < srf->num_sizes; ++i) {
 285		SVGA3dCmdHeader *header = &cmd->header;
 286		SVGA3dCmdSurfaceDMA *body = &cmd->body;
 287		SVGA3dCopyBox *cb = &cmd->cb;
 288		SVGA3dCmdSurfaceDMASuffix *suffix = &cmd->suffix;
 289		const struct vmw_surface_offset *cur_offset = &srf->offsets[i];
 290		const struct drm_vmw_size *cur_size = &srf->sizes[i];
 291
 292		header->id = SVGA_3D_CMD_SURFACE_DMA;
 293		header->size = sizeof(*body) + sizeof(*cb) + sizeof(*suffix);
 294
 295		body->guest.ptr = *ptr;
 296		body->guest.ptr.offset += cur_offset->bo_offset;
 297		body->guest.pitch = svga3dsurface_calculate_pitch(desc,
 298								  cur_size);
 299		body->host.sid = srf->res.id;
 300		body->host.face = cur_offset->face;
 301		body->host.mipmap = cur_offset->mip;
 302		body->transfer = ((to_surface) ?  SVGA3D_WRITE_HOST_VRAM :
 303				  SVGA3D_READ_HOST_VRAM);
 304		cb->x = 0;
 305		cb->y = 0;
 306		cb->z = 0;
 307		cb->srcx = 0;
 308		cb->srcy = 0;
 309		cb->srcz = 0;
 310		cb->w = cur_size->width;
 311		cb->h = cur_size->height;
 312		cb->d = cur_size->depth;
 313
 314		suffix->suffixSize = sizeof(*suffix);
 315		suffix->maximumOffset =
 316			svga3dsurface_get_image_buffer_size(desc, cur_size,
 317							    body->guest.pitch);
 318		suffix->flags.discard = 0;
 319		suffix->flags.unsynchronized = 0;
 320		suffix->flags.reserved = 0;
 321		++cmd;
 322	}
 323};
 324
 325
 326/**
 327 * vmw_hw_surface_destroy - destroy a Device surface
 328 *
 329 * @res:        Pointer to a struct vmw_resource embedded in a struct
 330 *              vmw_surface.
 331 *
 332 * Destroys a the device surface associated with a struct vmw_surface if
 333 * any, and adjusts accounting and resource count accordingly.
 334 */
 335static void vmw_hw_surface_destroy(struct vmw_resource *res)
 336{
 337
 338	struct vmw_private *dev_priv = res->dev_priv;
 339	struct vmw_surface *srf;
 340	void *cmd;
 341
 342	if (res->func->destroy == vmw_gb_surface_destroy) {
 343		(void) vmw_gb_surface_destroy(res);
 344		return;
 345	}
 346
 347	if (res->id != -1) {
 348
 349		cmd = VMW_FIFO_RESERVE(dev_priv, vmw_surface_destroy_size());
 350		if (unlikely(!cmd))
 
 
 351			return;
 
 352
 353		vmw_surface_destroy_encode(res->id, cmd);
 354		vmw_fifo_commit(dev_priv, vmw_surface_destroy_size());
 355
 356		/*
 357		 * used_memory_size_atomic, or separate lock
 358		 * to avoid taking dev_priv::cmdbuf_mutex in
 359		 * the destroy path.
 360		 */
 361
 362		mutex_lock(&dev_priv->cmdbuf_mutex);
 363		srf = vmw_res_to_srf(res);
 364		dev_priv->used_memory_size -= res->backup_size;
 365		mutex_unlock(&dev_priv->cmdbuf_mutex);
 366	}
 
 367}
 368
 369/**
 370 * vmw_legacy_srf_create - Create a device surface as part of the
 371 * resource validation process.
 372 *
 373 * @res: Pointer to a struct vmw_surface.
 374 *
 375 * If the surface doesn't have a hw id.
 376 *
 377 * Returns -EBUSY if there wasn't sufficient device resources to
 378 * complete the validation. Retry after freeing up resources.
 379 *
 380 * May return other errors if the kernel is out of guest resources.
 381 */
 382static int vmw_legacy_srf_create(struct vmw_resource *res)
 383{
 384	struct vmw_private *dev_priv = res->dev_priv;
 385	struct vmw_surface *srf;
 386	uint32_t submit_size;
 387	uint8_t *cmd;
 388	int ret;
 389
 390	if (likely(res->id != -1))
 391		return 0;
 392
 393	srf = vmw_res_to_srf(res);
 394	if (unlikely(dev_priv->used_memory_size + res->backup_size >=
 395		     dev_priv->memory_size))
 396		return -EBUSY;
 397
 398	/*
 399	 * Alloc id for the resource.
 400	 */
 401
 402	ret = vmw_resource_alloc_id(res);
 403	if (unlikely(ret != 0)) {
 404		DRM_ERROR("Failed to allocate a surface id.\n");
 405		goto out_no_id;
 406	}
 407
 408	if (unlikely(res->id >= SVGA3D_MAX_SURFACE_IDS)) {
 409		ret = -EBUSY;
 410		goto out_no_fifo;
 411	}
 412
 413	/*
 414	 * Encode surface define- commands.
 415	 */
 416
 417	submit_size = vmw_surface_define_size(srf);
 418	cmd = VMW_FIFO_RESERVE(dev_priv, submit_size);
 419	if (unlikely(!cmd)) {
 
 
 420		ret = -ENOMEM;
 421		goto out_no_fifo;
 422	}
 423
 424	vmw_surface_define_encode(srf, cmd);
 425	vmw_fifo_commit(dev_priv, submit_size);
 426	vmw_fifo_resource_inc(dev_priv);
 427
 428	/*
 429	 * Surface memory usage accounting.
 430	 */
 431
 432	dev_priv->used_memory_size += res->backup_size;
 433	return 0;
 434
 435out_no_fifo:
 436	vmw_resource_release_id(res);
 437out_no_id:
 438	return ret;
 439}
 440
 441/**
 442 * vmw_legacy_srf_dma - Copy backup data to or from a legacy surface.
 443 *
 444 * @res:            Pointer to a struct vmw_res embedded in a struct
 445 *                  vmw_surface.
 446 * @val_buf:        Pointer to a struct ttm_validate_buffer containing
 447 *                  information about the backup buffer.
 448 * @bind:           Boolean wether to DMA to the surface.
 449 *
 450 * Transfer backup data to or from a legacy surface as part of the
 451 * validation process.
 452 * May return other errors if the kernel is out of guest resources.
 453 * The backup buffer will be fenced or idle upon successful completion,
 454 * and if the surface needs persistent backup storage, the backup buffer
 455 * will also be returned reserved iff @bind is true.
 456 */
 457static int vmw_legacy_srf_dma(struct vmw_resource *res,
 458			      struct ttm_validate_buffer *val_buf,
 459			      bool bind)
 460{
 461	SVGAGuestPtr ptr;
 462	struct vmw_fence_obj *fence;
 463	uint32_t submit_size;
 464	struct vmw_surface *srf = vmw_res_to_srf(res);
 465	uint8_t *cmd;
 466	struct vmw_private *dev_priv = res->dev_priv;
 467
 468	BUG_ON(!val_buf->bo);
 469	submit_size = vmw_surface_dma_size(srf);
 470	cmd = VMW_FIFO_RESERVE(dev_priv, submit_size);
 471	if (unlikely(!cmd))
 
 
 472		return -ENOMEM;
 473
 474	vmw_bo_get_guest_ptr(val_buf->bo, &ptr);
 475	vmw_surface_dma_encode(srf, cmd, &ptr, bind);
 476
 477	vmw_fifo_commit(dev_priv, submit_size);
 478
 479	/*
 480	 * Create a fence object and fence the backup buffer.
 481	 */
 482
 483	(void) vmw_execbuf_fence_commands(NULL, dev_priv,
 484					  &fence, NULL);
 485
 486	vmw_bo_fence_single(val_buf->bo, fence);
 487
 488	if (likely(fence != NULL))
 489		vmw_fence_obj_unreference(&fence);
 490
 491	return 0;
 492}
 493
 494/**
 495 * vmw_legacy_srf_bind - Perform a legacy surface bind as part of the
 496 *                       surface validation process.
 497 *
 498 * @res:            Pointer to a struct vmw_res embedded in a struct
 499 *                  vmw_surface.
 500 * @val_buf:        Pointer to a struct ttm_validate_buffer containing
 501 *                  information about the backup buffer.
 502 *
 503 * This function will copy backup data to the surface if the
 504 * backup buffer is dirty.
 505 */
 506static int vmw_legacy_srf_bind(struct vmw_resource *res,
 507			       struct ttm_validate_buffer *val_buf)
 508{
 509	if (!res->backup_dirty)
 510		return 0;
 511
 512	return vmw_legacy_srf_dma(res, val_buf, true);
 513}
 514
 515
 516/**
 517 * vmw_legacy_srf_unbind - Perform a legacy surface unbind as part of the
 518 *                         surface eviction process.
 519 *
 520 * @res:            Pointer to a struct vmw_res embedded in a struct
 521 *                  vmw_surface.
 522 * @val_buf:        Pointer to a struct ttm_validate_buffer containing
 523 *                  information about the backup buffer.
 524 *
 525 * This function will copy backup data from the surface.
 526 */
 527static int vmw_legacy_srf_unbind(struct vmw_resource *res,
 528				 bool readback,
 529				 struct ttm_validate_buffer *val_buf)
 530{
 531	if (unlikely(readback))
 532		return vmw_legacy_srf_dma(res, val_buf, false);
 533	return 0;
 534}
 535
 536/**
 537 * vmw_legacy_srf_destroy - Destroy a device surface as part of a
 538 *                          resource eviction process.
 539 *
 540 * @res:            Pointer to a struct vmw_res embedded in a struct
 541 *                  vmw_surface.
 542 */
 543static int vmw_legacy_srf_destroy(struct vmw_resource *res)
 544{
 545	struct vmw_private *dev_priv = res->dev_priv;
 546	uint32_t submit_size;
 547	uint8_t *cmd;
 548
 549	BUG_ON(res->id == -1);
 550
 551	/*
 552	 * Encode the dma- and surface destroy commands.
 553	 */
 554
 555	submit_size = vmw_surface_destroy_size();
 556	cmd = VMW_FIFO_RESERVE(dev_priv, submit_size);
 557	if (unlikely(!cmd))
 
 
 558		return -ENOMEM;
 
 559
 560	vmw_surface_destroy_encode(res->id, cmd);
 561	vmw_fifo_commit(dev_priv, submit_size);
 562
 563	/*
 564	 * Surface memory usage accounting.
 565	 */
 566
 567	dev_priv->used_memory_size -= res->backup_size;
 568
 569	/*
 570	 * Release the surface ID.
 571	 */
 572
 573	vmw_resource_release_id(res);
 574	vmw_fifo_resource_dec(dev_priv);
 575
 576	return 0;
 577}
 578
 579
 580/**
 581 * vmw_surface_init - initialize a struct vmw_surface
 582 *
 583 * @dev_priv:       Pointer to a device private struct.
 584 * @srf:            Pointer to the struct vmw_surface to initialize.
 585 * @res_free:       Pointer to a resource destructor used to free
 586 *                  the object.
 587 */
 588static int vmw_surface_init(struct vmw_private *dev_priv,
 589			    struct vmw_surface *srf,
 590			    void (*res_free) (struct vmw_resource *res))
 591{
 592	int ret;
 593	struct vmw_resource *res = &srf->res;
 594
 595	BUG_ON(!res_free);
 
 
 596	ret = vmw_resource_init(dev_priv, res, true, res_free,
 597				(dev_priv->has_mob) ? &vmw_gb_surface_func :
 598				&vmw_legacy_surface_func);
 599
 600	if (unlikely(ret != 0)) {
 
 
 601		res_free(res);
 602		return ret;
 603	}
 604
 605	/*
 606	 * The surface won't be visible to hardware until a
 607	 * surface validate.
 608	 */
 609
 610	INIT_LIST_HEAD(&srf->view_list);
 611	res->hw_destroy = vmw_hw_surface_destroy;
 612	return ret;
 613}
 614
 615/**
 616 * vmw_user_surface_base_to_res - TTM base object to resource converter for
 617 *                                user visible surfaces
 618 *
 619 * @base:           Pointer to a TTM base object
 620 *
 621 * Returns the struct vmw_resource embedded in a struct vmw_surface
 622 * for the user-visible object identified by the TTM base object @base.
 623 */
 624static struct vmw_resource *
 625vmw_user_surface_base_to_res(struct ttm_base_object *base)
 626{
 627	return &(container_of(base, struct vmw_user_surface,
 628			      prime.base)->srf.res);
 629}
 630
 631/**
 632 * vmw_user_surface_free - User visible surface resource destructor
 633 *
 634 * @res:            A struct vmw_resource embedded in a struct vmw_surface.
 635 */
 636static void vmw_user_surface_free(struct vmw_resource *res)
 637{
 638	struct vmw_surface *srf = vmw_res_to_srf(res);
 639	struct vmw_user_surface *user_srf =
 640	    container_of(srf, struct vmw_user_surface, srf);
 641	struct vmw_private *dev_priv = srf->res.dev_priv;
 642	uint32_t size = user_srf->size;
 643
 644	if (user_srf->master)
 645		drm_master_put(&user_srf->master);
 646	kfree(srf->offsets);
 647	kfree(srf->sizes);
 648	kfree(srf->snooper.image);
 649	ttm_prime_object_kfree(user_srf, prime);
 650	ttm_mem_global_free(vmw_mem_glob(dev_priv), size);
 651}
 652
 653/**
 654 * vmw_user_surface_free - User visible surface TTM base object destructor
 655 *
 656 * @p_base:         Pointer to a pointer to a TTM base object
 657 *                  embedded in a struct vmw_user_surface.
 658 *
 659 * Drops the base object's reference on its resource, and the
 660 * pointer pointed to by *p_base is set to NULL.
 661 */
 662static void vmw_user_surface_base_release(struct ttm_base_object **p_base)
 663{
 664	struct ttm_base_object *base = *p_base;
 665	struct vmw_user_surface *user_srf =
 666	    container_of(base, struct vmw_user_surface, prime.base);
 667	struct vmw_resource *res = &user_srf->srf.res;
 668
 669	*p_base = NULL;
 670	if (user_srf->backup_base)
 671		ttm_base_object_unref(&user_srf->backup_base);
 672	vmw_resource_unreference(&res);
 673}
 674
 675/**
 676 * vmw_user_surface_destroy_ioctl - Ioctl function implementing
 677 *                                  the user surface destroy functionality.
 678 *
 679 * @dev:            Pointer to a struct drm_device.
 680 * @data:           Pointer to data copied from / to user-space.
 681 * @file_priv:      Pointer to a drm file private structure.
 682 */
 683int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
 684			      struct drm_file *file_priv)
 685{
 686	struct drm_vmw_surface_arg *arg = (struct drm_vmw_surface_arg *)data;
 687	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 688
 689	return ttm_ref_object_base_unref(tfile, arg->sid, TTM_REF_USAGE);
 690}
 691
 692/**
 693 * vmw_user_surface_define_ioctl - Ioctl function implementing
 694 *                                  the user surface define functionality.
 695 *
 696 * @dev:            Pointer to a struct drm_device.
 697 * @data:           Pointer to data copied from / to user-space.
 698 * @file_priv:      Pointer to a drm file private structure.
 699 */
 700int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
 701			     struct drm_file *file_priv)
 702{
 703	struct vmw_private *dev_priv = vmw_priv(dev);
 704	struct vmw_user_surface *user_srf;
 705	struct vmw_surface *srf;
 706	struct vmw_resource *res;
 707	struct vmw_resource *tmp;
 708	union drm_vmw_surface_create_arg *arg =
 709	    (union drm_vmw_surface_create_arg *)data;
 710	struct drm_vmw_surface_create_req *req = &arg->req;
 711	struct drm_vmw_surface_arg *rep = &arg->rep;
 712	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 713	struct ttm_operation_ctx ctx = {
 714		.interruptible = true,
 715		.no_wait_gpu = false
 716	};
 717	int ret;
 718	int i, j;
 719	uint32_t cur_bo_offset;
 720	struct drm_vmw_size *cur_size;
 721	struct vmw_surface_offset *cur_offset;
 722	uint32_t num_sizes;
 723	uint32_t size;
 724	const struct svga3d_surface_desc *desc;
 725
 726	if (unlikely(vmw_user_surface_size == 0))
 727		vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) +
 728			VMW_IDA_ACC_SIZE + TTM_OBJ_EXTRA_SIZE;
 729
 730	num_sizes = 0;
 731	for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
 732		if (req->mip_levels[i] > DRM_VMW_MAX_MIP_LEVELS)
 733			return -EINVAL;
 734		num_sizes += req->mip_levels[i];
 735	}
 736
 737	if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * DRM_VMW_MAX_MIP_LEVELS ||
 738	    num_sizes == 0)
 739		return -EINVAL;
 740
 741	size = vmw_user_surface_size +
 742		ttm_round_pot(num_sizes * sizeof(struct drm_vmw_size)) +
 743		ttm_round_pot(num_sizes * sizeof(struct vmw_surface_offset));
 744
 
 745	desc = svga3dsurface_get_desc(req->format);
 746	if (unlikely(desc->block_desc == SVGA3DBLOCKDESC_NONE)) {
 747		VMW_DEBUG_USER("Invalid format %d for surface creation.\n",
 748			       req->format);
 749		return -EINVAL;
 750	}
 751
 752	ret = ttm_read_lock(&dev_priv->reservation_sem, true);
 753	if (unlikely(ret != 0))
 754		return ret;
 755
 756	ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv),
 757				   size, &ctx);
 758	if (unlikely(ret != 0)) {
 759		if (ret != -ERESTARTSYS)
 760			DRM_ERROR("Out of graphics memory for surface.\n");
 
 761		goto out_unlock;
 762	}
 763
 764	user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL);
 765	if (unlikely(!user_srf)) {
 766		ret = -ENOMEM;
 767		goto out_no_user_srf;
 768	}
 769
 770	srf = &user_srf->srf;
 771	res = &srf->res;
 772
 773	/* Driver internally stores as 64-bit flags */
 774	srf->flags = (SVGA3dSurfaceAllFlags)req->flags;
 775	srf->format = req->format;
 776	srf->scanout = req->scanout;
 777
 778	memcpy(srf->mip_levels, req->mip_levels, sizeof(srf->mip_levels));
 779	srf->num_sizes = num_sizes;
 780	user_srf->size = size;
 781	srf->sizes = memdup_user((struct drm_vmw_size __user *)(unsigned long)
 782				 req->size_addr,
 783				 sizeof(*srf->sizes) * srf->num_sizes);
 784	if (IS_ERR(srf->sizes)) {
 785		ret = PTR_ERR(srf->sizes);
 786		goto out_no_sizes;
 787	}
 788	srf->offsets = kmalloc_array(srf->num_sizes,
 789				     sizeof(*srf->offsets),
 790				     GFP_KERNEL);
 791	if (unlikely(!srf->offsets)) {
 792		ret = -ENOMEM;
 793		goto out_no_offsets;
 794	}
 795
 796	srf->base_size = *srf->sizes;
 797	srf->autogen_filter = SVGA3D_TEX_FILTER_NONE;
 798	srf->multisample_count = 0;
 799	srf->multisample_pattern = SVGA3D_MS_PATTERN_NONE;
 800	srf->quality_level = SVGA3D_MS_QUALITY_NONE;
 801
 802	cur_bo_offset = 0;
 803	cur_offset = srf->offsets;
 804	cur_size = srf->sizes;
 805
 806	for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
 807		for (j = 0; j < srf->mip_levels[i]; ++j) {
 808			uint32_t stride = svga3dsurface_calculate_pitch
 809				(desc, cur_size);
 810
 811			cur_offset->face = i;
 812			cur_offset->mip = j;
 813			cur_offset->bo_offset = cur_bo_offset;
 814			cur_bo_offset += svga3dsurface_get_image_buffer_size
 815				(desc, cur_size, stride);
 816			++cur_offset;
 817			++cur_size;
 818		}
 819	}
 820	res->backup_size = cur_bo_offset;
 821	if (srf->scanout &&
 822	    srf->num_sizes == 1 &&
 823	    srf->sizes[0].width == 64 &&
 824	    srf->sizes[0].height == 64 &&
 825	    srf->format == SVGA3D_A8R8G8B8) {
 826
 827		srf->snooper.image = kzalloc(64 * 64 * 4, GFP_KERNEL);
 828		if (!srf->snooper.image) {
 829			DRM_ERROR("Failed to allocate cursor_image\n");
 830			ret = -ENOMEM;
 831			goto out_no_copy;
 832		}
 833	} else {
 834		srf->snooper.image = NULL;
 835	}
 
 836
 837	user_srf->prime.base.shareable = false;
 838	user_srf->prime.base.tfile = NULL;
 839	if (drm_is_primary_client(file_priv))
 840		user_srf->master = drm_master_get(file_priv->master);
 841
 842	/**
 843	 * From this point, the generic resource management functions
 844	 * destroy the object on failure.
 845	 */
 846
 847	ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free);
 848	if (unlikely(ret != 0))
 849		goto out_unlock;
 850
 851	/*
 852	 * A gb-aware client referencing a shared surface will
 853	 * expect a backup buffer to be present.
 854	 */
 855	if (dev_priv->has_mob && req->shareable) {
 856		uint32_t backup_handle;
 857
 858		ret = vmw_user_bo_alloc(dev_priv, tfile,
 859					res->backup_size,
 860					true,
 861					&backup_handle,
 862					&res->backup,
 863					&user_srf->backup_base);
 864		if (unlikely(ret != 0)) {
 865			vmw_resource_unreference(&res);
 866			goto out_unlock;
 867		}
 868	}
 869
 870	tmp = vmw_resource_reference(&srf->res);
 871	ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime,
 872				    req->shareable, VMW_RES_SURFACE,
 873				    &vmw_user_surface_base_release, NULL);
 874
 875	if (unlikely(ret != 0)) {
 876		vmw_resource_unreference(&tmp);
 877		vmw_resource_unreference(&res);
 878		goto out_unlock;
 879	}
 880
 881	rep->sid = user_srf->prime.base.handle;
 882	vmw_resource_unreference(&res);
 883
 884	ttm_read_unlock(&dev_priv->reservation_sem);
 885	return 0;
 886out_no_copy:
 887	kfree(srf->offsets);
 888out_no_offsets:
 889	kfree(srf->sizes);
 890out_no_sizes:
 891	ttm_prime_object_kfree(user_srf, prime);
 892out_no_user_srf:
 893	ttm_mem_global_free(vmw_mem_glob(dev_priv), size);
 894out_unlock:
 895	ttm_read_unlock(&dev_priv->reservation_sem);
 896	return ret;
 897}
 898
 899
 900static int
 901vmw_surface_handle_reference(struct vmw_private *dev_priv,
 902			     struct drm_file *file_priv,
 903			     uint32_t u_handle,
 904			     enum drm_vmw_handle_type handle_type,
 905			     struct ttm_base_object **base_p)
 906{
 907	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 908	struct vmw_user_surface *user_srf;
 909	uint32_t handle;
 910	struct ttm_base_object *base;
 911	int ret;
 912	bool require_exist = false;
 913
 914	if (handle_type == DRM_VMW_HANDLE_PRIME) {
 915		ret = ttm_prime_fd_to_handle(tfile, u_handle, &handle);
 916		if (unlikely(ret != 0))
 917			return ret;
 918	} else {
 919		if (unlikely(drm_is_render_client(file_priv)))
 920			require_exist = true;
 921
 
 
 
 
 
 
 922		handle = u_handle;
 923	}
 924
 925	ret = -EINVAL;
 926	base = ttm_base_object_lookup_for_ref(dev_priv->tdev, handle);
 927	if (unlikely(!base)) {
 928		VMW_DEBUG_USER("Could not find surface to reference.\n");
 929		goto out_no_lookup;
 930	}
 931
 932	if (unlikely(ttm_base_object_type(base) != VMW_RES_SURFACE)) {
 933		VMW_DEBUG_USER("Referenced object is not a surface.\n");
 934		goto out_bad_resource;
 935	}
 936
 937	if (handle_type != DRM_VMW_HANDLE_PRIME) {
 938		user_srf = container_of(base, struct vmw_user_surface,
 939					prime.base);
 940
 941		/*
 942		 * Make sure the surface creator has the same
 943		 * authenticating master, or is already registered with us.
 944		 */
 945		if (drm_is_primary_client(file_priv) &&
 946		    user_srf->master != file_priv->master)
 947			require_exist = true;
 948
 949		ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL,
 950					 require_exist);
 951		if (unlikely(ret != 0)) {
 952			DRM_ERROR("Could not add a reference to a surface.\n");
 953			goto out_bad_resource;
 954		}
 955	}
 956
 957	*base_p = base;
 958	return 0;
 959
 960out_bad_resource:
 961	ttm_base_object_unref(&base);
 962out_no_lookup:
 963	if (handle_type == DRM_VMW_HANDLE_PRIME)
 964		(void) ttm_ref_object_base_unref(tfile, handle, TTM_REF_USAGE);
 965
 966	return ret;
 967}
 968
 969/**
 970 * vmw_user_surface_define_ioctl - Ioctl function implementing
 971 *                                  the user surface reference functionality.
 972 *
 973 * @dev:            Pointer to a struct drm_device.
 974 * @data:           Pointer to data copied from / to user-space.
 975 * @file_priv:      Pointer to a drm file private structure.
 976 */
 977int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
 978				struct drm_file *file_priv)
 979{
 980	struct vmw_private *dev_priv = vmw_priv(dev);
 981	union drm_vmw_surface_reference_arg *arg =
 982	    (union drm_vmw_surface_reference_arg *)data;
 983	struct drm_vmw_surface_arg *req = &arg->req;
 984	struct drm_vmw_surface_create_req *rep = &arg->rep;
 985	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 986	struct vmw_surface *srf;
 987	struct vmw_user_surface *user_srf;
 988	struct drm_vmw_size __user *user_sizes;
 989	struct ttm_base_object *base;
 990	int ret;
 991
 992	ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid,
 993					   req->handle_type, &base);
 994	if (unlikely(ret != 0))
 995		return ret;
 996
 997	user_srf = container_of(base, struct vmw_user_surface, prime.base);
 998	srf = &user_srf->srf;
 999
1000	/* Downcast of flags when sending back to user space */
1001	rep->flags = (uint32_t)srf->flags;
1002	rep->format = srf->format;
1003	memcpy(rep->mip_levels, srf->mip_levels, sizeof(srf->mip_levels));
1004	user_sizes = (struct drm_vmw_size __user *)(unsigned long)
1005	    rep->size_addr;
1006
1007	if (user_sizes)
1008		ret = copy_to_user(user_sizes, &srf->base_size,
1009				   sizeof(srf->base_size));
1010	if (unlikely(ret != 0)) {
1011		VMW_DEBUG_USER("copy_to_user failed %p %u\n", user_sizes,
1012			       srf->num_sizes);
1013		ttm_ref_object_base_unref(tfile, base->handle, TTM_REF_USAGE);
1014		ret = -EFAULT;
1015	}
1016
1017	ttm_base_object_unref(&base);
1018
1019	return ret;
1020}
1021
1022/**
1023 * vmw_surface_define_encode - Encode a surface_define command.
1024 *
1025 * @srf: Pointer to a struct vmw_surface object.
1026 * @cmd_space: Pointer to memory area in which the commands should be encoded.
1027 */
1028static int vmw_gb_surface_create(struct vmw_resource *res)
1029{
1030	struct vmw_private *dev_priv = res->dev_priv;
1031	struct vmw_surface *srf = vmw_res_to_srf(res);
1032	uint32_t cmd_len, cmd_id, submit_len;
1033	int ret;
1034	struct {
1035		SVGA3dCmdHeader header;
1036		SVGA3dCmdDefineGBSurface body;
1037	} *cmd;
1038	struct {
1039		SVGA3dCmdHeader header;
1040		SVGA3dCmdDefineGBSurface_v2 body;
1041	} *cmd2;
1042	struct {
1043		SVGA3dCmdHeader header;
1044		SVGA3dCmdDefineGBSurface_v3 body;
1045	} *cmd3;
1046
1047	if (likely(res->id != -1))
1048		return 0;
1049
1050	vmw_fifo_resource_inc(dev_priv);
1051	ret = vmw_resource_alloc_id(res);
1052	if (unlikely(ret != 0)) {
1053		DRM_ERROR("Failed to allocate a surface id.\n");
1054		goto out_no_id;
1055	}
1056
1057	if (unlikely(res->id >= VMWGFX_NUM_GB_SURFACE)) {
1058		ret = -EBUSY;
1059		goto out_no_fifo;
1060	}
1061
1062	if (dev_priv->has_sm4_1 && srf->array_size > 0) {
1063		cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V3;
1064		cmd_len = sizeof(cmd3->body);
1065		submit_len = sizeof(*cmd3);
1066	} else if (srf->array_size > 0) {
1067		/* has_dx checked on creation time. */
1068		cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V2;
1069		cmd_len = sizeof(cmd2->body);
1070		submit_len = sizeof(*cmd2);
1071	} else {
1072		cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE;
1073		cmd_len = sizeof(cmd->body);
1074		submit_len = sizeof(*cmd);
1075	}
1076
1077	cmd = VMW_FIFO_RESERVE(dev_priv, submit_len);
1078	cmd2 = (typeof(cmd2))cmd;
1079	cmd3 = (typeof(cmd3))cmd;
1080	if (unlikely(!cmd)) {
 
 
1081		ret = -ENOMEM;
1082		goto out_no_fifo;
1083	}
1084
1085	if (dev_priv->has_sm4_1 && srf->array_size > 0) {
1086		cmd3->header.id = cmd_id;
1087		cmd3->header.size = cmd_len;
1088		cmd3->body.sid = srf->res.id;
1089		cmd3->body.surfaceFlags = srf->flags;
1090		cmd3->body.format = srf->format;
1091		cmd3->body.numMipLevels = srf->mip_levels[0];
1092		cmd3->body.multisampleCount = srf->multisample_count;
1093		cmd3->body.multisamplePattern = srf->multisample_pattern;
1094		cmd3->body.qualityLevel = srf->quality_level;
1095		cmd3->body.autogenFilter = srf->autogen_filter;
1096		cmd3->body.size.width = srf->base_size.width;
1097		cmd3->body.size.height = srf->base_size.height;
1098		cmd3->body.size.depth = srf->base_size.depth;
1099		cmd3->body.arraySize = srf->array_size;
1100	} else if (srf->array_size > 0) {
1101		cmd2->header.id = cmd_id;
1102		cmd2->header.size = cmd_len;
1103		cmd2->body.sid = srf->res.id;
1104		cmd2->body.surfaceFlags = srf->flags;
1105		cmd2->body.format = srf->format;
1106		cmd2->body.numMipLevels = srf->mip_levels[0];
1107		cmd2->body.multisampleCount = srf->multisample_count;
1108		cmd2->body.autogenFilter = srf->autogen_filter;
1109		cmd2->body.size.width = srf->base_size.width;
1110		cmd2->body.size.height = srf->base_size.height;
1111		cmd2->body.size.depth = srf->base_size.depth;
1112		cmd2->body.arraySize = srf->array_size;
1113	} else {
1114		cmd->header.id = cmd_id;
1115		cmd->header.size = cmd_len;
1116		cmd->body.sid = srf->res.id;
1117		cmd->body.surfaceFlags = srf->flags;
1118		cmd->body.format = srf->format;
1119		cmd->body.numMipLevels = srf->mip_levels[0];
1120		cmd->body.multisampleCount = srf->multisample_count;
1121		cmd->body.autogenFilter = srf->autogen_filter;
1122		cmd->body.size.width = srf->base_size.width;
1123		cmd->body.size.height = srf->base_size.height;
1124		cmd->body.size.depth = srf->base_size.depth;
1125	}
1126
1127	vmw_fifo_commit(dev_priv, submit_len);
1128
1129	return 0;
1130
1131out_no_fifo:
1132	vmw_resource_release_id(res);
1133out_no_id:
1134	vmw_fifo_resource_dec(dev_priv);
1135	return ret;
1136}
1137
1138
1139static int vmw_gb_surface_bind(struct vmw_resource *res,
1140			       struct ttm_validate_buffer *val_buf)
1141{
1142	struct vmw_private *dev_priv = res->dev_priv;
1143	struct {
1144		SVGA3dCmdHeader header;
1145		SVGA3dCmdBindGBSurface body;
1146	} *cmd1;
1147	struct {
1148		SVGA3dCmdHeader header;
1149		SVGA3dCmdUpdateGBSurface body;
1150	} *cmd2;
1151	uint32_t submit_size;
1152	struct ttm_buffer_object *bo = val_buf->bo;
1153
1154	BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
1155
1156	submit_size = sizeof(*cmd1) + (res->backup_dirty ? sizeof(*cmd2) : 0);
1157
1158	cmd1 = VMW_FIFO_RESERVE(dev_priv, submit_size);
1159	if (unlikely(!cmd1))
 
 
1160		return -ENOMEM;
 
1161
1162	cmd1->header.id = SVGA_3D_CMD_BIND_GB_SURFACE;
1163	cmd1->header.size = sizeof(cmd1->body);
1164	cmd1->body.sid = res->id;
1165	cmd1->body.mobid = bo->mem.start;
1166	if (res->backup_dirty) {
1167		cmd2 = (void *) &cmd1[1];
1168		cmd2->header.id = SVGA_3D_CMD_UPDATE_GB_SURFACE;
1169		cmd2->header.size = sizeof(cmd2->body);
1170		cmd2->body.sid = res->id;
1171		res->backup_dirty = false;
1172	}
1173	vmw_fifo_commit(dev_priv, submit_size);
1174
1175	return 0;
1176}
1177
1178static int vmw_gb_surface_unbind(struct vmw_resource *res,
1179				 bool readback,
1180				 struct ttm_validate_buffer *val_buf)
1181{
1182	struct vmw_private *dev_priv = res->dev_priv;
1183	struct ttm_buffer_object *bo = val_buf->bo;
1184	struct vmw_fence_obj *fence;
1185
1186	struct {
1187		SVGA3dCmdHeader header;
1188		SVGA3dCmdReadbackGBSurface body;
1189	} *cmd1;
1190	struct {
1191		SVGA3dCmdHeader header;
1192		SVGA3dCmdInvalidateGBSurface body;
1193	} *cmd2;
1194	struct {
1195		SVGA3dCmdHeader header;
1196		SVGA3dCmdBindGBSurface body;
1197	} *cmd3;
1198	uint32_t submit_size;
1199	uint8_t *cmd;
1200
1201
1202	BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
1203
1204	submit_size = sizeof(*cmd3) + (readback ? sizeof(*cmd1) : sizeof(*cmd2));
1205	cmd = VMW_FIFO_RESERVE(dev_priv, submit_size);
1206	if (unlikely(!cmd))
 
 
1207		return -ENOMEM;
 
1208
1209	if (readback) {
1210		cmd1 = (void *) cmd;
1211		cmd1->header.id = SVGA_3D_CMD_READBACK_GB_SURFACE;
1212		cmd1->header.size = sizeof(cmd1->body);
1213		cmd1->body.sid = res->id;
1214		cmd3 = (void *) &cmd1[1];
1215	} else {
1216		cmd2 = (void *) cmd;
1217		cmd2->header.id = SVGA_3D_CMD_INVALIDATE_GB_SURFACE;
1218		cmd2->header.size = sizeof(cmd2->body);
1219		cmd2->body.sid = res->id;
1220		cmd3 = (void *) &cmd2[1];
1221	}
1222
1223	cmd3->header.id = SVGA_3D_CMD_BIND_GB_SURFACE;
1224	cmd3->header.size = sizeof(cmd3->body);
1225	cmd3->body.sid = res->id;
1226	cmd3->body.mobid = SVGA3D_INVALID_ID;
1227
1228	vmw_fifo_commit(dev_priv, submit_size);
1229
1230	/*
1231	 * Create a fence object and fence the backup buffer.
1232	 */
1233
1234	(void) vmw_execbuf_fence_commands(NULL, dev_priv,
1235					  &fence, NULL);
1236
1237	vmw_bo_fence_single(val_buf->bo, fence);
1238
1239	if (likely(fence != NULL))
1240		vmw_fence_obj_unreference(&fence);
1241
1242	return 0;
1243}
1244
1245static int vmw_gb_surface_destroy(struct vmw_resource *res)
1246{
1247	struct vmw_private *dev_priv = res->dev_priv;
1248	struct vmw_surface *srf = vmw_res_to_srf(res);
1249	struct {
1250		SVGA3dCmdHeader header;
1251		SVGA3dCmdDestroyGBSurface body;
1252	} *cmd;
1253
1254	if (likely(res->id == -1))
1255		return 0;
1256
1257	mutex_lock(&dev_priv->binding_mutex);
1258	vmw_view_surface_list_destroy(dev_priv, &srf->view_list);
1259	vmw_binding_res_list_scrub(&res->binding_head);
1260
1261	cmd = VMW_FIFO_RESERVE(dev_priv, sizeof(*cmd));
1262	if (unlikely(!cmd)) {
 
 
1263		mutex_unlock(&dev_priv->binding_mutex);
1264		return -ENOMEM;
1265	}
1266
1267	cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SURFACE;
1268	cmd->header.size = sizeof(cmd->body);
1269	cmd->body.sid = res->id;
1270	vmw_fifo_commit(dev_priv, sizeof(*cmd));
1271	mutex_unlock(&dev_priv->binding_mutex);
1272	vmw_resource_release_id(res);
1273	vmw_fifo_resource_dec(dev_priv);
1274
1275	return 0;
1276}
1277
1278
1279/**
1280 * vmw_gb_surface_define_ioctl - Ioctl function implementing
1281 * the user surface define functionality.
1282 *
1283 * @dev: Pointer to a struct drm_device.
1284 * @data: Pointer to data copied from / to user-space.
1285 * @file_priv: Pointer to a drm file private structure.
1286 */
1287int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
1288				struct drm_file *file_priv)
1289{
 
 
 
 
 
1290	union drm_vmw_gb_surface_create_arg *arg =
1291	    (union drm_vmw_gb_surface_create_arg *)data;
 
1292	struct drm_vmw_gb_surface_create_rep *rep = &arg->rep;
1293	struct drm_vmw_gb_surface_create_ext_req req_ext;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1294
1295	req_ext.base = arg->req;
1296	req_ext.version = drm_vmw_gb_surface_v1;
1297	req_ext.svga3d_flags_upper_32_bits = 0;
1298	req_ext.multisample_pattern = SVGA3D_MS_PATTERN_NONE;
1299	req_ext.quality_level = SVGA3D_MS_QUALITY_NONE;
1300	req_ext.must_be_zero = 0;
1301
1302	return vmw_gb_surface_define_internal(dev, &req_ext, rep, file_priv);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1303}
1304
1305/**
1306 * vmw_gb_surface_reference_ioctl - Ioctl function implementing
1307 * the user surface reference functionality.
1308 *
1309 * @dev: Pointer to a struct drm_device.
1310 * @data: Pointer to data copied from / to user-space.
1311 * @file_priv: Pointer to a drm file private structure.
1312 */
1313int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
1314				   struct drm_file *file_priv)
1315{
 
1316	union drm_vmw_gb_surface_reference_arg *arg =
1317	    (union drm_vmw_gb_surface_reference_arg *)data;
1318	struct drm_vmw_surface_arg *req = &arg->req;
1319	struct drm_vmw_gb_surface_ref_rep *rep = &arg->rep;
1320	struct drm_vmw_gb_surface_ref_ext_rep rep_ext;
1321	int ret;
1322
1323	ret = vmw_gb_surface_reference_internal(dev, req, &rep_ext, file_priv);
 
 
1324
 
 
1325	if (unlikely(ret != 0))
1326		return ret;
1327
1328	rep->creq = rep_ext.creq.base;
1329	rep->crep = rep_ext.crep;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1330
1331	return ret;
1332}
1333
1334/**
1335 * vmw_surface_gb_priv_define - Define a private GB surface
1336 *
1337 * @dev:  Pointer to a struct drm_device
1338 * @user_accounting_size:  Used to track user-space memory usage, set
1339 *                         to 0 for kernel mode only memory
1340 * @svga3d_flags: SVGA3d surface flags for the device
1341 * @format: requested surface format
1342 * @for_scanout: true if inteded to be used for scanout buffer
1343 * @num_mip_levels:  number of MIP levels
1344 * @multisample_count:
1345 * @array_size: Surface array size.
1346 * @size: width, heigh, depth of the surface requested
1347 * @multisample_pattern: Multisampling pattern when msaa is supported
1348 * @quality_level: Precision settings
1349 * @user_srf_out: allocated user_srf.  Set to NULL on failure.
1350 *
1351 * GB surfaces allocated by this function will not have a user mode handle, and
1352 * thus will only be visible to vmwgfx.  For optimization reasons the
1353 * surface may later be given a user mode handle by another function to make
1354 * it available to user mode drivers.
1355 */
1356int vmw_surface_gb_priv_define(struct drm_device *dev,
1357			       uint32_t user_accounting_size,
1358			       SVGA3dSurfaceAllFlags svga3d_flags,
1359			       SVGA3dSurfaceFormat format,
1360			       bool for_scanout,
1361			       uint32_t num_mip_levels,
1362			       uint32_t multisample_count,
1363			       uint32_t array_size,
1364			       struct drm_vmw_size size,
1365			       SVGA3dMSPattern multisample_pattern,
1366			       SVGA3dMSQualityLevel quality_level,
1367			       struct vmw_surface **srf_out)
1368{
1369	struct vmw_private *dev_priv = vmw_priv(dev);
1370	struct vmw_user_surface *user_srf;
1371	struct ttm_operation_ctx ctx = {
1372		.interruptible = true,
1373		.no_wait_gpu = false
1374	};
1375	struct vmw_surface *srf;
1376	int ret;
1377	u32 num_layers = 1;
1378	u32 sample_count = 1;
1379
1380	*srf_out = NULL;
1381
1382	if (for_scanout) {
1383		if (!svga3dsurface_is_screen_target_format(format)) {
1384			VMW_DEBUG_USER("Invalid Screen Target surface format.");
1385			return -EINVAL;
1386		}
1387
1388		if (size.width > dev_priv->texture_max_width ||
1389		    size.height > dev_priv->texture_max_height) {
1390			VMW_DEBUG_USER("%ux%u\n, exceeds max surface size %ux%u",
1391				       size.width, size.height,
1392				       dev_priv->texture_max_width,
1393				       dev_priv->texture_max_height);
1394			return -EINVAL;
1395		}
1396	} else {
1397		const struct svga3d_surface_desc *desc;
1398
1399		desc = svga3dsurface_get_desc(format);
1400		if (unlikely(desc->block_desc == SVGA3DBLOCKDESC_NONE)) {
1401			VMW_DEBUG_USER("Invalid surface format.\n");
1402			return -EINVAL;
1403		}
1404	}
1405
1406	/* array_size must be null for non-GL3 host. */
1407	if (array_size > 0 && !dev_priv->has_dx) {
1408		VMW_DEBUG_USER("Tried to create DX surface on non-DX host.\n");
1409		return -EINVAL;
1410	}
1411
1412	ret = ttm_read_lock(&dev_priv->reservation_sem, true);
1413	if (unlikely(ret != 0))
1414		return ret;
1415
1416	ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv),
1417				   user_accounting_size, &ctx);
1418	if (unlikely(ret != 0)) {
1419		if (ret != -ERESTARTSYS)
1420			DRM_ERROR("Out of graphics memory for surface"
1421				  " creation.\n");
1422		goto out_unlock;
1423	}
1424
1425	user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL);
1426	if (unlikely(!user_srf)) {
1427		ret = -ENOMEM;
1428		goto out_no_user_srf;
1429	}
1430
1431	*srf_out  = &user_srf->srf;
1432	user_srf->size = user_accounting_size;
1433	user_srf->prime.base.shareable = false;
1434	user_srf->prime.base.tfile     = NULL;
1435
1436	srf = &user_srf->srf;
1437	srf->flags             = svga3d_flags;
1438	srf->format            = format;
1439	srf->scanout           = for_scanout;
1440	srf->mip_levels[0]     = num_mip_levels;
1441	srf->num_sizes         = 1;
1442	srf->sizes             = NULL;
1443	srf->offsets           = NULL;
1444	srf->base_size         = size;
1445	srf->autogen_filter    = SVGA3D_TEX_FILTER_NONE;
1446	srf->array_size        = array_size;
1447	srf->multisample_count = multisample_count;
1448	srf->multisample_pattern = multisample_pattern;
1449	srf->quality_level = quality_level;
1450
1451	if (array_size)
1452		num_layers = array_size;
1453	else if (svga3d_flags & SVGA3D_SURFACE_CUBEMAP)
1454		num_layers = SVGA3D_MAX_SURFACE_FACES;
1455
1456	if (srf->flags & SVGA3D_SURFACE_MULTISAMPLE)
1457		sample_count = srf->multisample_count;
1458
1459	srf->res.backup_size   =
1460		svga3dsurface_get_serialized_size_extended(srf->format,
1461							   srf->base_size,
1462							   srf->mip_levels[0],
1463							   num_layers,
1464							   sample_count);
1465
1466	if (srf->flags & SVGA3D_SURFACE_BIND_STREAM_OUTPUT)
1467		srf->res.backup_size += sizeof(SVGA3dDXSOState);
1468
1469	/*
1470	 * Don't set SVGA3D_SURFACE_SCREENTARGET flag for a scanout surface with
1471	 * size greater than STDU max width/height. This is really a workaround
1472	 * to support creation of big framebuffer requested by some user-space
1473	 * for whole topology. That big framebuffer won't really be used for
1474	 * binding with screen target as during prepare_fb a separate surface is
1475	 * created so it's safe to ignore SVGA3D_SURFACE_SCREENTARGET flag.
1476	 */
1477	if (dev_priv->active_display_unit == vmw_du_screen_target &&
1478	    for_scanout && size.width <= dev_priv->stdu_max_width &&
1479	    size.height <= dev_priv->stdu_max_height)
1480		srf->flags |= SVGA3D_SURFACE_SCREENTARGET;
1481
1482	/*
1483	 * From this point, the generic resource management functions
1484	 * destroy the object on failure.
1485	 */
1486	ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free);
1487
1488	ttm_read_unlock(&dev_priv->reservation_sem);
1489	return ret;
1490
1491out_no_user_srf:
1492	ttm_mem_global_free(vmw_mem_glob(dev_priv), user_accounting_size);
1493
1494out_unlock:
1495	ttm_read_unlock(&dev_priv->reservation_sem);
1496	return ret;
1497}
1498
1499/**
1500 * vmw_gb_surface_define_ext_ioctl - Ioctl function implementing
1501 * the user surface define functionality.
1502 *
1503 * @dev: Pointer to a struct drm_device.
1504 * @data: Pointer to data copied from / to user-space.
1505 * @file_priv: Pointer to a drm file private structure.
1506 */
1507int vmw_gb_surface_define_ext_ioctl(struct drm_device *dev, void *data,
1508				struct drm_file *file_priv)
1509{
1510	union drm_vmw_gb_surface_create_ext_arg *arg =
1511	    (union drm_vmw_gb_surface_create_ext_arg *)data;
1512	struct drm_vmw_gb_surface_create_ext_req *req = &arg->req;
1513	struct drm_vmw_gb_surface_create_rep *rep = &arg->rep;
1514
1515	return vmw_gb_surface_define_internal(dev, req, rep, file_priv);
1516}
1517
1518/**
1519 * vmw_gb_surface_reference_ext_ioctl - Ioctl function implementing
1520 * the user surface reference functionality.
1521 *
1522 * @dev: Pointer to a struct drm_device.
1523 * @data: Pointer to data copied from / to user-space.
1524 * @file_priv: Pointer to a drm file private structure.
1525 */
1526int vmw_gb_surface_reference_ext_ioctl(struct drm_device *dev, void *data,
1527				   struct drm_file *file_priv)
1528{
1529	union drm_vmw_gb_surface_reference_ext_arg *arg =
1530	    (union drm_vmw_gb_surface_reference_ext_arg *)data;
1531	struct drm_vmw_surface_arg *req = &arg->req;
1532	struct drm_vmw_gb_surface_ref_ext_rep *rep = &arg->rep;
1533
1534	return vmw_gb_surface_reference_internal(dev, req, rep, file_priv);
1535}
1536
1537/**
1538 * vmw_gb_surface_define_internal - Ioctl function implementing
1539 * the user surface define functionality.
1540 *
1541 * @dev: Pointer to a struct drm_device.
1542 * @req: Request argument from user-space.
1543 * @rep: Response argument to user-space.
1544 * @file_priv: Pointer to a drm file private structure.
1545 */
1546static int
1547vmw_gb_surface_define_internal(struct drm_device *dev,
1548			       struct drm_vmw_gb_surface_create_ext_req *req,
1549			       struct drm_vmw_gb_surface_create_rep *rep,
1550			       struct drm_file *file_priv)
1551{
1552	struct vmw_private *dev_priv = vmw_priv(dev);
1553	struct vmw_user_surface *user_srf;
1554	struct vmw_surface *srf;
1555	struct vmw_resource *res;
1556	struct vmw_resource *tmp;
1557	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1558	int ret;
1559	uint32_t size;
1560	uint32_t backup_handle = 0;
1561	SVGA3dSurfaceAllFlags svga3d_flags_64 =
1562		SVGA3D_FLAGS_64(req->svga3d_flags_upper_32_bits,
1563				req->base.svga3d_flags);
1564
1565	if (!dev_priv->has_sm4_1) {
1566		/*
1567		 * If SM4_1 is not support then cannot send 64-bit flag to
1568		 * device.
1569		 */
1570		if (req->svga3d_flags_upper_32_bits != 0)
1571			return -EINVAL;
1572
1573		if (req->base.multisample_count != 0)
1574			return -EINVAL;
1575
1576		if (req->multisample_pattern != SVGA3D_MS_PATTERN_NONE)
1577			return -EINVAL;
1578
1579		if (req->quality_level != SVGA3D_MS_QUALITY_NONE)
1580			return -EINVAL;
1581	}
1582
1583	if ((svga3d_flags_64 & SVGA3D_SURFACE_MULTISAMPLE) &&
1584	    req->base.multisample_count == 0)
1585		return -EINVAL;
1586
1587	if (req->base.mip_levels > DRM_VMW_MAX_MIP_LEVELS)
1588		return -EINVAL;
1589
1590	if (unlikely(vmw_user_surface_size == 0))
1591		vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) +
1592			VMW_IDA_ACC_SIZE + TTM_OBJ_EXTRA_SIZE;
1593
1594	size = vmw_user_surface_size;
1595
1596	/* Define a surface based on the parameters. */
1597	ret = vmw_surface_gb_priv_define(dev,
1598					 size,
1599					 svga3d_flags_64,
1600					 req->base.format,
1601					 req->base.drm_surface_flags &
1602					 drm_vmw_surface_flag_scanout,
1603					 req->base.mip_levels,
1604					 req->base.multisample_count,
1605					 req->base.array_size,
1606					 req->base.base_size,
1607					 req->multisample_pattern,
1608					 req->quality_level,
1609					 &srf);
1610	if (unlikely(ret != 0))
1611		return ret;
1612
1613	user_srf = container_of(srf, struct vmw_user_surface, srf);
1614	if (drm_is_primary_client(file_priv))
1615		user_srf->master = drm_master_get(file_priv->master);
1616
1617	ret = ttm_read_lock(&dev_priv->reservation_sem, true);
1618	if (unlikely(ret != 0))
1619		return ret;
1620
1621	res = &user_srf->srf.res;
1622
1623	if (req->base.buffer_handle != SVGA3D_INVALID_ID) {
1624		ret = vmw_user_bo_lookup(tfile, req->base.buffer_handle,
1625					 &res->backup,
1626					 &user_srf->backup_base);
1627		if (ret == 0) {
1628			if (res->backup->base.num_pages * PAGE_SIZE <
1629			    res->backup_size) {
1630				VMW_DEBUG_USER("Surface backup buffer too small.\n");
1631				vmw_bo_unreference(&res->backup);
1632				ret = -EINVAL;
1633				goto out_unlock;
1634			} else {
1635				backup_handle = req->base.buffer_handle;
1636			}
1637		}
1638	} else if (req->base.drm_surface_flags &
1639		   drm_vmw_surface_flag_create_buffer)
1640		ret = vmw_user_bo_alloc(dev_priv, tfile,
1641					res->backup_size,
1642					req->base.drm_surface_flags &
1643					drm_vmw_surface_flag_shareable,
1644					&backup_handle,
1645					&res->backup,
1646					&user_srf->backup_base);
1647
1648	if (unlikely(ret != 0)) {
1649		vmw_resource_unreference(&res);
1650		goto out_unlock;
1651	}
1652
1653	tmp = vmw_resource_reference(res);
1654	ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime,
1655				    req->base.drm_surface_flags &
1656				    drm_vmw_surface_flag_shareable,
1657				    VMW_RES_SURFACE,
1658				    &vmw_user_surface_base_release, NULL);
1659
1660	if (unlikely(ret != 0)) {
1661		vmw_resource_unreference(&tmp);
1662		vmw_resource_unreference(&res);
1663		goto out_unlock;
1664	}
1665
1666	rep->handle      = user_srf->prime.base.handle;
1667	rep->backup_size = res->backup_size;
1668	if (res->backup) {
1669		rep->buffer_map_handle =
1670			drm_vma_node_offset_addr(&res->backup->base.base.vma_node);
1671		rep->buffer_size = res->backup->base.num_pages * PAGE_SIZE;
1672		rep->buffer_handle = backup_handle;
1673	} else {
1674		rep->buffer_map_handle = 0;
1675		rep->buffer_size = 0;
1676		rep->buffer_handle = SVGA3D_INVALID_ID;
1677	}
1678
1679	vmw_resource_unreference(&res);
1680
1681out_unlock:
1682	ttm_read_unlock(&dev_priv->reservation_sem);
1683	return ret;
1684}
1685
1686/**
1687 * vmw_gb_surface_reference_internal - Ioctl function implementing
1688 * the user surface reference functionality.
1689 *
1690 * @dev: Pointer to a struct drm_device.
1691 * @req: Pointer to user-space request surface arg.
1692 * @rep: Pointer to response to user-space.
1693 * @file_priv: Pointer to a drm file private structure.
1694 */
1695static int
1696vmw_gb_surface_reference_internal(struct drm_device *dev,
1697				  struct drm_vmw_surface_arg *req,
1698				  struct drm_vmw_gb_surface_ref_ext_rep *rep,
1699				  struct drm_file *file_priv)
1700{
1701	struct vmw_private *dev_priv = vmw_priv(dev);
1702	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1703	struct vmw_surface *srf;
1704	struct vmw_user_surface *user_srf;
1705	struct ttm_base_object *base;
1706	uint32_t backup_handle;
1707	int ret = -EINVAL;
1708
1709	ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid,
1710					   req->handle_type, &base);
1711	if (unlikely(ret != 0))
1712		return ret;
1713
1714	user_srf = container_of(base, struct vmw_user_surface, prime.base);
1715	srf = &user_srf->srf;
1716	if (!srf->res.backup) {
1717		DRM_ERROR("Shared GB surface is missing a backup buffer.\n");
1718		goto out_bad_resource;
1719	}
1720
1721	mutex_lock(&dev_priv->cmdbuf_mutex); /* Protect res->backup */
1722	ret = vmw_user_bo_reference(tfile, srf->res.backup, &backup_handle);
1723	mutex_unlock(&dev_priv->cmdbuf_mutex);
1724
1725	if (unlikely(ret != 0)) {
1726		DRM_ERROR("Could not add a reference to a GB surface "
1727			  "backup buffer.\n");
1728		(void) ttm_ref_object_base_unref(tfile, base->handle,
1729						 TTM_REF_USAGE);
1730		goto out_bad_resource;
1731	}
1732
1733	rep->creq.base.svga3d_flags = SVGA3D_FLAGS_LOWER_32(srf->flags);
1734	rep->creq.base.format = srf->format;
1735	rep->creq.base.mip_levels = srf->mip_levels[0];
1736	rep->creq.base.drm_surface_flags = 0;
1737	rep->creq.base.multisample_count = srf->multisample_count;
1738	rep->creq.base.autogen_filter = srf->autogen_filter;
1739	rep->creq.base.array_size = srf->array_size;
1740	rep->creq.base.buffer_handle = backup_handle;
1741	rep->creq.base.base_size = srf->base_size;
1742	rep->crep.handle = user_srf->prime.base.handle;
1743	rep->crep.backup_size = srf->res.backup_size;
1744	rep->crep.buffer_handle = backup_handle;
1745	rep->crep.buffer_map_handle =
1746		drm_vma_node_offset_addr(&srf->res.backup->base.base.vma_node);
1747	rep->crep.buffer_size = srf->res.backup->base.num_pages * PAGE_SIZE;
1748
1749	rep->creq.version = drm_vmw_gb_surface_v1;
1750	rep->creq.svga3d_flags_upper_32_bits =
1751		SVGA3D_FLAGS_UPPER_32(srf->flags);
1752	rep->creq.multisample_pattern = srf->multisample_pattern;
1753	rep->creq.quality_level = srf->quality_level;
1754	rep->creq.must_be_zero = 0;
1755
1756out_bad_resource:
1757	ttm_base_object_unref(&base);
1758
1759	return ret;
1760}