src/intel/vulkan/anv_pass.c

   1 /*
   2  * Copyright © 2015 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include "anv_private.h"
  25
  26 #include "vk_util.h"
  27
  28 static void
  29 anv_render_pass_add_subpass_dep(struct anv_render_pass *pass,
  30                                 const VkSubpassDependency2KHR *dep)
  31 {
  32    if (dep->dstSubpass == VK_SUBPASS_EXTERNAL) {
  33       pass->subpass_flushes[pass->subpass_count] |=
  34          anv_pipe_invalidate_bits_for_access_flags(dep->dstAccessMask);
  35    } else {
  36       assert(dep->dstSubpass < pass->subpass_count);
  37       pass->subpass_flushes[dep->dstSubpass] |=
  38          anv_pipe_invalidate_bits_for_access_flags(dep->dstAccessMask);
  39    }
  40
  41    if (dep->srcSubpass == VK_SUBPASS_EXTERNAL) {
  42       pass->subpass_flushes[0] |=
  43          anv_pipe_flush_bits_for_access_flags(dep->srcAccessMask);
  44    } else {
  45       assert(dep->srcSubpass < pass->subpass_count);
  46       pass->subpass_flushes[dep->srcSubpass + 1] |=
  47          anv_pipe_flush_bits_for_access_flags(dep->srcAccessMask);
  48    }
  49 }
  50
  51 /* Do a second "compile" step on a render pass */
  52 static void
  53 anv_render_pass_compile(struct anv_render_pass *pass)
  54 {
  55    /* The CreateRenderPass code zeros the entire render pass and also uses a
  56     * designated initializer for filling these out.  There's no need for us to
  57     * do it again.
  58     *
  59     * for (uint32_t i = 0; i < pass->attachment_count; i++) {
  60     *    pass->attachments[i].usage = 0;
  61     *    pass->attachments[i].first_subpass_layout = VK_IMAGE_LAYOUT_UNDEFINED;
  62     * }
  63     */
  64
  65    VkImageUsageFlags all_usage = 0;
  66    for (uint32_t i = 0; i < pass->subpass_count; i++) {
  67       struct anv_subpass *subpass = &pass->subpasses[i];
  68
  69       /* We don't allow depth_stencil_attachment to be non-NULL and be
  70        * VK_ATTACHMENT_UNUSED.  This way something can just check for NULL
  71        * and be guaranteed that they have a valid attachment.
  72        */
  73       if (subpass->depth_stencil_attachment &&
  74           subpass->depth_stencil_attachment->attachment == VK_ATTACHMENT_UNUSED)
  75          subpass->depth_stencil_attachment = NULL;
  76
  77       if (subpass->ds_resolve_attachment &&
  78           subpass->ds_resolve_attachment->attachment == VK_ATTACHMENT_UNUSED)
  79          subpass->ds_resolve_attachment = NULL;
  80
  81       for (uint32_t j = 0; j < subpass->attachment_count; j++) {
  82          struct anv_subpass_attachment *subpass_att = &subpass->attachments[j];
  83          if (subpass_att->attachment == VK_ATTACHMENT_UNUSED)
  84             continue;
  85
  86          struct anv_render_pass_attachment *pass_att =
  87             &pass->attachments[subpass_att->attachment];
  88
  89          assert(__builtin_popcount(subpass_att->usage) == 1);
  90          pass_att->usage |= subpass_att->usage;
  91          pass_att->last_subpass_idx = i;
  92
  93          all_usage |= subpass_att->usage;
  94
  95          if (pass_att->first_subpass_layout == VK_IMAGE_LAYOUT_UNDEFINED) {
  96             pass_att->first_subpass_layout = subpass_att->layout;
  97             assert(pass_att->first_subpass_layout != VK_IMAGE_LAYOUT_UNDEFINED);
  98          }
  99
 100          if (subpass_att->usage == VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT &&
 101              subpass->depth_stencil_attachment &&
 102              subpass_att->attachment == subpass->depth_stencil_attachment->attachment)
 103             subpass->has_ds_self_dep = true;
 104       }
 105
 106       /* We have to handle resolve attachments specially */
 107       subpass->has_color_resolve = false;
 108       if (subpass->resolve_attachments) {
 109          for (uint32_t j = 0; j < subpass->color_count; j++) {
 110             struct anv_subpass_attachment *color_att =
 111                &subpass->color_attachments[j];
 112             struct anv_subpass_attachment *resolve_att =
 113                &subpass->resolve_attachments[j];
 114             if (resolve_att->attachment == VK_ATTACHMENT_UNUSED)
 115                continue;
 116
 117             subpass->has_color_resolve = true;
 118
 119             assert(resolve_att->usage == VK_IMAGE_USAGE_TRANSFER_DST_BIT);
 120             color_att->usage |= VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
 121          }
 122       }
 123
 124       if (subpass->ds_resolve_attachment) {
 125          struct anv_subpass_attachment *ds_att =
 126             subpass->depth_stencil_attachment;
 127          UNUSED struct anv_subpass_attachment *resolve_att =
 128             subpass->ds_resolve_attachment;
 129
 130          assert(resolve_att->usage == VK_IMAGE_USAGE_TRANSFER_DST_BIT);
 131          ds_att->usage |= VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
 132       }
 133    }
 134
 135    /* From the Vulkan 1.0.39 spec:
 136     *
 137     *    If there is no subpass dependency from VK_SUBPASS_EXTERNAL to the
 138     *    first subpass that uses an attachment, then an implicit subpass
 139     *    dependency exists from VK_SUBPASS_EXTERNAL to the first subpass it is
 140     *    used in. The subpass dependency operates as if defined with the
 141     *    following parameters:
 142     *
 143     *    VkSubpassDependency implicitDependency = {
 144     *        .srcSubpass = VK_SUBPASS_EXTERNAL;
 145     *        .dstSubpass = firstSubpass; // First subpass attachment is used in
 146     *        .srcStageMask = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
 147     *        .dstStageMask = VK_PIPELINE_STAGE_ALL_COMMANDS_BIT;
 148     *        .srcAccessMask = 0;
 149     *        .dstAccessMask = VK_ACCESS_INPUT_ATTACHMENT_READ_BIT |
 150     *                         VK_ACCESS_COLOR_ATTACHMENT_READ_BIT |
 151     *                         VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT |
 152     *                         VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_READ_BIT |
 153     *                         VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT;
 154     *        .dependencyFlags = 0;
 155     *    };
 156     *
 157     *    Similarly, if there is no subpass dependency from the last subpass
 158     *    that uses an attachment to VK_SUBPASS_EXTERNAL, then an implicit
 159     *    subpass dependency exists from the last subpass it is used in to
 160     *    VK_SUBPASS_EXTERNAL. The subpass dependency operates as if defined
 161     *    with the following parameters:
 162     *
 163     *    VkSubpassDependency implicitDependency = {
 164     *        .srcSubpass = lastSubpass; // Last subpass attachment is used in
 165     *        .dstSubpass = VK_SUBPASS_EXTERNAL;
 166     *        .srcStageMask = VK_PIPELINE_STAGE_ALL_COMMANDS_BIT;
 167     *        .dstStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
 168     *        .srcAccessMask = VK_ACCESS_INPUT_ATTACHMENT_READ_BIT |
 169     *                         VK_ACCESS_COLOR_ATTACHMENT_READ_BIT |
 170     *                         VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT |
 171     *                         VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_READ_BIT |
 172     *                         VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT;
 173     *        .dstAccessMask = 0;
 174     *        .dependencyFlags = 0;
 175     *    };
 176     *
 177     * We could implement this by walking over all of the attachments and
 178     * subpasses and checking to see if any of them don't have an external
 179     * dependency.  Or, we could just be lazy and add a couple extra flushes.
 180     * We choose to be lazy.
 181     *
 182     * From the documentation for vkCmdNextSubpass:
 183     *
 184     *    "Moving to the next subpass automatically performs any multisample
 185     *    resolve operations in the subpass being ended. End-of-subpass
 186     *    multisample resolves are treated as color attachment writes for the
 187     *    purposes of synchronization. This applies to resolve operations for
 188     *    both color and depth/stencil attachments. That is, they are
 189     *    considered to execute in the
 190     *    VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT pipeline stage and
 191     *    their writes are synchronized with
 192     *    VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT."
 193     *
 194     * Therefore, the above flags concerning color attachments also apply to
 195     * color and depth/stencil resolve attachments.
 196     */
 197    if (all_usage & VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT) {
 198       pass->subpass_flushes[0] |=
 199          ANV_PIPE_TEXTURE_CACHE_INVALIDATE_BIT;
 200    }
 201    if (all_usage & (VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |
 202                     VK_IMAGE_USAGE_TRANSFER_DST_BIT)) {
 203       pass->subpass_flushes[pass->subpass_count] |=
 204          ANV_PIPE_RENDER_TARGET_CACHE_FLUSH_BIT;
 205    }
 206    if (all_usage & VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT) {
 207       pass->subpass_flushes[pass->subpass_count] |=
 208          ANV_PIPE_DEPTH_CACHE_FLUSH_BIT;
 209    }
 210 }
 211
 212 static unsigned
 213 num_subpass_attachments(const VkSubpassDescription *desc)
 214 {
 215    return desc->inputAttachmentCount +
 216           desc->colorAttachmentCount +
 217           (desc->pResolveAttachments ? desc->colorAttachmentCount : 0) +
 218           (desc->pDepthStencilAttachment != NULL);
 219 }
 220
 221 VkResult anv_CreateRenderPass(
 222     VkDevice                                    _device,
 223     const VkRenderPassCreateInfo*               pCreateInfo,
 224     const VkAllocationCallbacks*                pAllocator,
 225     VkRenderPass*                               pRenderPass)
 226 {
 227    ANV_FROM_HANDLE(anv_device, device, _device);
 228
 229    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO);
 230
 231    struct anv_render_pass *pass;
 232    struct anv_subpass *subpasses;
 233    struct anv_render_pass_attachment *attachments;
 234    enum anv_pipe_bits *subpass_flushes;
 235
 236    ANV_MULTIALLOC(ma);
 237    anv_multialloc_add(&ma, &pass, 1);
 238    anv_multialloc_add(&ma, &subpasses, pCreateInfo->subpassCount);
 239    anv_multialloc_add(&ma, &attachments, pCreateInfo->attachmentCount);
 240    anv_multialloc_add(&ma, &subpass_flushes, pCreateInfo->subpassCount + 1);
 241
 242    struct anv_subpass_attachment *subpass_attachments;
 243    uint32_t subpass_attachment_count = 0;
 244    for (uint32_t i = 0; i < pCreateInfo->subpassCount; i++) {
 245       subpass_attachment_count +=
 246          num_subpass_attachments(&pCreateInfo->pSubpasses[i]);
 247    }
 248    anv_multialloc_add(&ma, &subpass_attachments, subpass_attachment_count);
 249
 250    if (!anv_multialloc_alloc2(&ma, &device->alloc, pAllocator,
 251                               VK_SYSTEM_ALLOCATION_SCOPE_OBJECT))
 252       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 253
 254    /* Clear the subpasses along with the parent pass. This required because
 255     * each array member of anv_subpass must be a valid pointer if not NULL.
 256     */
 257    memset(pass, 0, ma.size);
 258    pass->attachment_count = pCreateInfo->attachmentCount;
 259    pass->subpass_count = pCreateInfo->subpassCount;
 260    pass->attachments = attachments;
 261    pass->subpass_flushes = subpass_flushes;
 262
 263    for (uint32_t i = 0; i < pCreateInfo->attachmentCount; i++) {
 264       pass->attachments[i] = (struct anv_render_pass_attachment) {
 265          .format                 = pCreateInfo->pAttachments[i].format,
 266          .samples                = pCreateInfo->pAttachments[i].samples,
 267          .load_op                = pCreateInfo->pAttachments[i].loadOp,
 268          .store_op               = pCreateInfo->pAttachments[i].storeOp,
 269          .stencil_load_op        = pCreateInfo->pAttachments[i].stencilLoadOp,
 270          .initial_layout         = pCreateInfo->pAttachments[i].initialLayout,
 271          .final_layout           = pCreateInfo->pAttachments[i].finalLayout,
 272
 273          .stencil_initial_layout = pCreateInfo->pAttachments[i].initialLayout,
 274          .stencil_final_layout   = pCreateInfo->pAttachments[i].finalLayout,
 275       };
 276    }
 277
 278    for (uint32_t i = 0; i < pCreateInfo->subpassCount; i++) {
 279       const VkSubpassDescription *desc = &pCreateInfo->pSubpasses[i];
 280       struct anv_subpass *subpass = &pass->subpasses[i];
 281
 282       subpass->input_count = desc->inputAttachmentCount;
 283       subpass->color_count = desc->colorAttachmentCount;
 284       subpass->attachment_count = num_subpass_attachments(desc);
 285       subpass->attachments = subpass_attachments;
 286       subpass->view_mask = 0;
 287
 288       if (desc->inputAttachmentCount > 0) {
 289          subpass->input_attachments = subpass_attachments;
 290          subpass_attachments += desc->inputAttachmentCount;
 291
 292          for (uint32_t j = 0; j < desc->inputAttachmentCount; j++) {
 293             subpass->input_attachments[j] = (struct anv_subpass_attachment) {
 294                .usage =          VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT,
 295                .attachment =     desc->pInputAttachments[j].attachment,
 296                .layout =         desc->pInputAttachments[j].layout,
 297                .stencil_layout = desc->pInputAttachments[j].layout,
 298             };
 299          }
 300       }
 301
 302       if (desc->colorAttachmentCount > 0) {
 303          subpass->color_attachments = subpass_attachments;
 304          subpass_attachments += desc->colorAttachmentCount;
 305
 306          for (uint32_t j = 0; j < desc->colorAttachmentCount; j++) {
 307             subpass->color_attachments[j] = (struct anv_subpass_attachment) {
 308                .usage =       VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
 309                .attachment =  desc->pColorAttachments[j].attachment,
 310                .layout =      desc->pColorAttachments[j].layout,
 311             };
 312          }
 313       }
 314
 315       if (desc->pResolveAttachments) {
 316          subpass->resolve_attachments = subpass_attachments;
 317          subpass_attachments += desc->colorAttachmentCount;
 318
 319          for (uint32_t j = 0; j < desc->colorAttachmentCount; j++) {
 320             subpass->resolve_attachments[j] = (struct anv_subpass_attachment) {
 321                .usage =       VK_IMAGE_USAGE_TRANSFER_DST_BIT,
 322                .attachment =  desc->pResolveAttachments[j].attachment,
 323                .layout =      desc->pResolveAttachments[j].layout,
 324             };
 325          }
 326       }
 327
 328       if (desc->pDepthStencilAttachment) {
 329          subpass->depth_stencil_attachment = subpass_attachments++;
 330
 331          *subpass->depth_stencil_attachment = (struct anv_subpass_attachment) {
 332             .usage =          VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT,
 333             .attachment =     desc->pDepthStencilAttachment->attachment,
 334             .layout =         desc->pDepthStencilAttachment->layout,
 335             .stencil_layout = desc->pDepthStencilAttachment->layout,
 336          };
 337       }
 338    }
 339
 340    for (uint32_t i = 0; i < pCreateInfo->dependencyCount; i++) {
 341       /* Convert to a Dependency2KHR */
 342       VkSubpassDependency2 dep2 = {
 343          .srcSubpass       = pCreateInfo->pDependencies[i].srcSubpass,
 344          .dstSubpass       = pCreateInfo->pDependencies[i].dstSubpass,
 345          .srcStageMask     = pCreateInfo->pDependencies[i].srcStageMask,
 346          .dstStageMask     = pCreateInfo->pDependencies[i].dstStageMask,
 347          .srcAccessMask    = pCreateInfo->pDependencies[i].srcAccessMask,
 348          .dstAccessMask    = pCreateInfo->pDependencies[i].dstAccessMask,
 349          .dependencyFlags  = pCreateInfo->pDependencies[i].dependencyFlags,
 350       };
 351       anv_render_pass_add_subpass_dep(pass, &dep2);
 352    }
 353
 354    vk_foreach_struct(ext, pCreateInfo->pNext) {
 355       switch (ext->sType) {
 356       case VK_STRUCTURE_TYPE_RENDER_PASS_INPUT_ATTACHMENT_ASPECT_CREATE_INFO:
 357          /* We don't care about this information */
 358          break;
 359
 360       case VK_STRUCTURE_TYPE_RENDER_PASS_MULTIVIEW_CREATE_INFO: {
 361          VkRenderPassMultiviewCreateInfo *mv = (void *)ext;
 362
 363          for (uint32_t i = 0; i < mv->subpassCount; i++) {
 364             pass->subpasses[i].view_mask = mv->pViewMasks[i];
 365          }
 366          break;
 367       }
 368
 369       default:
 370          anv_debug_ignored_stype(ext->sType);
 371       }
 372    }
 373
 374    anv_render_pass_compile(pass);
 375
 376    *pRenderPass = anv_render_pass_to_handle(pass);
 377
 378    return VK_SUCCESS;
 379 }
 380
 381 static unsigned
 382 num_subpass_attachments2(const VkSubpassDescription2KHR *desc)
 383 {
 384    const VkSubpassDescriptionDepthStencilResolveKHR *ds_resolve =
 385       vk_find_struct_const(desc->pNext,
 386                            SUBPASS_DESCRIPTION_DEPTH_STENCIL_RESOLVE_KHR);
 387
 388    return desc->inputAttachmentCount +
 389           desc->colorAttachmentCount +
 390           (desc->pResolveAttachments ? desc->colorAttachmentCount : 0) +
 391           (desc->pDepthStencilAttachment != NULL) +
 392           (ds_resolve && ds_resolve->pDepthStencilResolveAttachment);
 393 }
 394
 395 VkResult anv_CreateRenderPass2(
 396     VkDevice                                    _device,
 397     const VkRenderPassCreateInfo2KHR*           pCreateInfo,
 398     const VkAllocationCallbacks*                pAllocator,
 399     VkRenderPass*                               pRenderPass)
 400 {
 401    ANV_FROM_HANDLE(anv_device, device, _device);
 402
 403    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO_2_KHR);
 404
 405    struct anv_render_pass *pass;
 406    struct anv_subpass *subpasses;
 407    struct anv_render_pass_attachment *attachments;
 408    enum anv_pipe_bits *subpass_flushes;
 409
 410    ANV_MULTIALLOC(ma);
 411    anv_multialloc_add(&ma, &pass, 1);
 412    anv_multialloc_add(&ma, &subpasses, pCreateInfo->subpassCount);
 413    anv_multialloc_add(&ma, &attachments, pCreateInfo->attachmentCount);
 414    anv_multialloc_add(&ma, &subpass_flushes, pCreateInfo->subpassCount + 1);
 415
 416    struct anv_subpass_attachment *subpass_attachments;
 417    uint32_t subpass_attachment_count = 0;
 418    for (uint32_t i = 0; i < pCreateInfo->subpassCount; i++) {
 419       subpass_attachment_count +=
 420          num_subpass_attachments2(&pCreateInfo->pSubpasses[i]);
 421    }
 422    anv_multialloc_add(&ma, &subpass_attachments, subpass_attachment_count);
 423
 424    if (!anv_multialloc_alloc2(&ma, &device->alloc, pAllocator,
 425                               VK_SYSTEM_ALLOCATION_SCOPE_OBJECT))
 426       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 427
 428    /* Clear the subpasses along with the parent pass. This required because
 429     * each array member of anv_subpass must be a valid pointer if not NULL.
 430     */
 431    memset(pass, 0, ma.size);
 432    pass->attachment_count = pCreateInfo->attachmentCount;
 433    pass->subpass_count = pCreateInfo->subpassCount;
 434    pass->attachments = attachments;
 435    pass->subpass_flushes = subpass_flushes;
 436
 437    for (uint32_t i = 0; i < pCreateInfo->attachmentCount; i++) {
 438       const VkAttachmentDescriptionStencilLayoutKHR *stencil_layout =
 439          vk_find_struct_const(pCreateInfo->pAttachments[i].pNext,
 440                               ATTACHMENT_DESCRIPTION_STENCIL_LAYOUT_KHR);
 441
 442       pass->attachments[i] = (struct anv_render_pass_attachment) {
 443          .format                 = pCreateInfo->pAttachments[i].format,
 444          .samples                = pCreateInfo->pAttachments[i].samples,
 445          .load_op                = pCreateInfo->pAttachments[i].loadOp,
 446          .store_op               = pCreateInfo->pAttachments[i].storeOp,
 447          .stencil_load_op        = pCreateInfo->pAttachments[i].stencilLoadOp,
 448          .initial_layout         = pCreateInfo->pAttachments[i].initialLayout,
 449          .final_layout           = pCreateInfo->pAttachments[i].finalLayout,
 450
 451          .stencil_initial_layout = (stencil_layout ?
 452                                     stencil_layout->stencilInitialLayout :
 453                                     pCreateInfo->pAttachments[i].initialLayout),
 454          .stencil_final_layout   = (stencil_layout ?
 455                                     stencil_layout->stencilFinalLayout :
 456                                     pCreateInfo->pAttachments[i].finalLayout),
 457       };
 458    }
 459
 460    for (uint32_t i = 0; i < pCreateInfo->subpassCount; i++) {
 461       const VkSubpassDescription2KHR *desc = &pCreateInfo->pSubpasses[i];
 462       struct anv_subpass *subpass = &pass->subpasses[i];
 463
 464       subpass->input_count = desc->inputAttachmentCount;
 465       subpass->color_count = desc->colorAttachmentCount;
 466       subpass->attachment_count = num_subpass_attachments2(desc);
 467       subpass->attachments = subpass_attachments;
 468       subpass->view_mask = desc->viewMask;
 469
 470       if (desc->inputAttachmentCount > 0) {
 471          subpass->input_attachments = subpass_attachments;
 472          subpass_attachments += desc->inputAttachmentCount;
 473
 474          for (uint32_t j = 0; j < desc->inputAttachmentCount; j++) {
 475             const VkAttachmentReferenceStencilLayoutKHR *stencil_layout =
 476                vk_find_struct_const(desc->pInputAttachments[j].pNext,
 477                                     ATTACHMENT_REFERENCE_STENCIL_LAYOUT_KHR);
 478
 479             subpass->input_attachments[j] = (struct anv_subpass_attachment) {
 480                .usage =          VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT,
 481                .attachment =     desc->pInputAttachments[j].attachment,
 482                .layout =         desc->pInputAttachments[j].layout,
 483                .stencil_layout = (stencil_layout ?
 484                                   stencil_layout->stencilLayout :
 485                                   desc->pInputAttachments[j].layout),
 486             };
 487          }
 488       }
 489
 490       if (desc->colorAttachmentCount > 0) {
 491          subpass->color_attachments = subpass_attachments;
 492          subpass_attachments += desc->colorAttachmentCount;
 493
 494          for (uint32_t j = 0; j < desc->colorAttachmentCount; j++) {
 495             subpass->color_attachments[j] = (struct anv_subpass_attachment) {
 496                .usage =       VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
 497                .attachment =  desc->pColorAttachments[j].attachment,
 498                .layout =      desc->pColorAttachments[j].layout,
 499             };
 500          }
 501       }
 502
 503       if (desc->pResolveAttachments) {
 504          subpass->resolve_attachments = subpass_attachments;
 505          subpass_attachments += desc->colorAttachmentCount;
 506
 507          for (uint32_t j = 0; j < desc->colorAttachmentCount; j++) {
 508             subpass->resolve_attachments[j] = (struct anv_subpass_attachment) {
 509                .usage =       VK_IMAGE_USAGE_TRANSFER_DST_BIT,
 510                .attachment =  desc->pResolveAttachments[j].attachment,
 511                .layout =      desc->pResolveAttachments[j].layout,
 512             };
 513          }
 514       }
 515
 516       if (desc->pDepthStencilAttachment) {
 517          subpass->depth_stencil_attachment = subpass_attachments++;
 518
 519          const VkAttachmentReferenceStencilLayoutKHR *stencil_attachment =
 520             vk_find_struct_const(desc->pDepthStencilAttachment->pNext,
 521                                  ATTACHMENT_REFERENCE_STENCIL_LAYOUT_KHR);
 522
 523          *subpass->depth_stencil_attachment = (struct anv_subpass_attachment) {
 524             .usage =          VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT,
 525             .attachment =     desc->pDepthStencilAttachment->attachment,
 526             .layout =         desc->pDepthStencilAttachment->layout,
 527             .stencil_layout = stencil_attachment ?
 528                               stencil_attachment->stencilLayout :
 529                               desc->pDepthStencilAttachment->layout,
 530          };
 531       }
 532
 533       const VkSubpassDescriptionDepthStencilResolveKHR *ds_resolve =
 534          vk_find_struct_const(desc->pNext,
 535                               SUBPASS_DESCRIPTION_DEPTH_STENCIL_RESOLVE_KHR);
 536
 537       if (ds_resolve && ds_resolve->pDepthStencilResolveAttachment) {
 538          subpass->ds_resolve_attachment = subpass_attachments++;
 539
 540          const VkAttachmentReferenceStencilLayoutKHR *stencil_resolve_attachment =
 541             vk_find_struct_const(ds_resolve->pDepthStencilResolveAttachment->pNext,
 542                                  ATTACHMENT_REFERENCE_STENCIL_LAYOUT_KHR);
 543
 544          *subpass->ds_resolve_attachment = (struct anv_subpass_attachment) {
 545             .usage =          VK_IMAGE_USAGE_TRANSFER_DST_BIT,
 546             .attachment =     ds_resolve->pDepthStencilResolveAttachment->attachment,
 547             .layout =         ds_resolve->pDepthStencilResolveAttachment->layout,
 548             .stencil_layout = stencil_resolve_attachment ?
 549                               stencil_resolve_attachment->stencilLayout :
 550                               ds_resolve->pDepthStencilResolveAttachment->layout,
 551          };
 552          subpass->depth_resolve_mode = ds_resolve->depthResolveMode;
 553          subpass->stencil_resolve_mode = ds_resolve->stencilResolveMode;
 554       }
 555    }
 556
 557    for (uint32_t i = 0; i < pCreateInfo->dependencyCount; i++)
 558       anv_render_pass_add_subpass_dep(pass, &pCreateInfo->pDependencies[i]);
 559
 560    vk_foreach_struct(ext, pCreateInfo->pNext) {
 561       switch (ext->sType) {
 562       default:
 563          anv_debug_ignored_stype(ext->sType);
 564       }
 565    }
 566
 567    anv_render_pass_compile(pass);
 568
 569    *pRenderPass = anv_render_pass_to_handle(pass);
 570
 571    return VK_SUCCESS;
 572 }
 573
 574 void anv_DestroyRenderPass(
 575     VkDevice                                    _device,
 576     VkRenderPass                                _pass,
 577     const VkAllocationCallbacks*                pAllocator)
 578 {
 579    ANV_FROM_HANDLE(anv_device, device, _device);
 580    ANV_FROM_HANDLE(anv_render_pass, pass, _pass);
 581
 582    vk_free2(&device->alloc, pAllocator, pass);
 583 }
 584
 585 void anv_GetRenderAreaGranularity(
 586     VkDevice                                    device,
 587     VkRenderPass                                renderPass,
 588     VkExtent2D*                                 pGranularity)
 589 {
 590    ANV_FROM_HANDLE(anv_render_pass, pass, renderPass);
 591
 592    /* This granularity satisfies HiZ fast clear alignment requirements
 593     * for all sample counts.
 594     */
 595    for (unsigned i = 0; i < pass->subpass_count; ++i) {
 596       if (pass->subpasses[i].depth_stencil_attachment) {
 597          *pGranularity = (VkExtent2D) { .width = 8, .height = 4 };
 598          return;
 599       }
 600    }
 601
 602    *pGranularity = (VkExtent2D) { 1, 1 };
 603 }