src/vulkan/anv_image.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 <assert.h>
  25 #include <stdbool.h>
  26 #include <string.h>
  27 #include <unistd.h>
  28 #include <fcntl.h>
  29
  30 #include "anv_private.h"
  31
  32 /**
  33  * The \a format argument is required and overrides any format found in struct
  34  * anv_image_create_info. Exactly one bit must be set in \a aspect.
  35  */
  36 static isl_surf_usage_flags_t
  37 choose_isl_surf_usage(const struct anv_image_create_info *info,
  38                       VkImageAspectFlags aspect)
  39 {
  40    const VkImageCreateInfo *vk_info = info->vk_info;
  41    isl_surf_usage_flags_t isl_flags = 0;
  42
  43    /* FINISHME: Support aux surfaces */
  44    isl_flags |= ISL_SURF_USAGE_DISABLE_AUX_BIT;
  45
  46    if (vk_info->usage & VK_IMAGE_USAGE_SAMPLED_BIT)
  47       isl_flags |= ISL_SURF_USAGE_TEXTURE_BIT;
  48
  49    if (vk_info->usage & VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT)
  50       isl_flags |= ISL_SURF_USAGE_TEXTURE_BIT;
  51
  52    if (vk_info->usage & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT)
  53       isl_flags |= ISL_SURF_USAGE_RENDER_TARGET_BIT;
  54
  55    if (vk_info->flags & VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT)
  56       isl_flags |= ISL_SURF_USAGE_CUBE_BIT;
  57
  58    if (vk_info->usage & VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT) {
  59       switch (aspect) {
  60       default:
  61          unreachable("bad VkImageAspect");
  62       case VK_IMAGE_ASPECT_DEPTH_BIT:
  63          isl_flags |= ISL_SURF_USAGE_DEPTH_BIT;
  64          break;
  65       case VK_IMAGE_ASPECT_STENCIL_BIT:
  66          isl_flags |= ISL_SURF_USAGE_STENCIL_BIT;
  67          break;
  68       }
  69    }
  70
  71    if (vk_info->usage & VK_IMAGE_USAGE_TRANSFER_SRC_BIT) {
  72       /* Meta implements transfers by sampling from the source image. */
  73       isl_flags |= ISL_SURF_USAGE_TEXTURE_BIT;
  74    }
  75
  76    if (vk_info->usage & VK_IMAGE_USAGE_TRANSFER_DST_BIT) {
  77       /* Meta implements transfers by rendering into the destination image. */
  78       isl_flags |= ISL_SURF_USAGE_RENDER_TARGET_BIT;
  79    }
  80
  81    return isl_flags;
  82 }
  83
  84 /**
  85  * Exactly one bit must be set in \a aspect.
  86  */
  87 static struct anv_surface *
  88 get_surface(struct anv_image *image, VkImageAspectFlags aspect)
  89 {
  90    switch (aspect) {
  91    default:
  92       unreachable("bad VkImageAspect");
  93    case VK_IMAGE_ASPECT_COLOR_BIT:
  94       return &image->color_surface;
  95    case VK_IMAGE_ASPECT_DEPTH_BIT:
  96       return &image->depth_surface;
  97    case VK_IMAGE_ASPECT_STENCIL_BIT:
  98       return &image->stencil_surface;
  99    }
 100 }
 101
 102 /**
 103  * Initialize the anv_image::*_surface selected by \a aspect. Then update the
 104  * image's memory requirements (that is, the image's size and alignment).
 105  *
 106  * Exactly one bit must be set in \a aspect.
 107  */
 108 static VkResult
 109 make_surface(const struct anv_device *dev,
 110              struct anv_image *image,
 111              const struct anv_image_create_info *anv_info,
 112              VkImageAspectFlags aspect)
 113 {
 114    const VkImageCreateInfo *vk_info = anv_info->vk_info;
 115    bool ok UNUSED;
 116
 117    static const enum isl_surf_dim vk_to_isl_surf_dim[] = {
 118       [VK_IMAGE_TYPE_1D] = ISL_SURF_DIM_1D,
 119       [VK_IMAGE_TYPE_2D] = ISL_SURF_DIM_2D,
 120       [VK_IMAGE_TYPE_3D] = ISL_SURF_DIM_3D,
 121    };
 122
 123    isl_tiling_flags_t tiling_flags = anv_info->isl_tiling_flags;
 124    if (vk_info->tiling == VK_IMAGE_TILING_LINEAR)
 125       tiling_flags &= ISL_TILING_LINEAR_BIT;
 126
 127    struct anv_surface *anv_surf = get_surface(image, aspect);
 128
 129    ok = isl_surf_init(&dev->isl_dev, &anv_surf->isl,
 130       .dim = vk_to_isl_surf_dim[vk_info->imageType],
 131       .format = anv_get_isl_format(vk_info->format, aspect,
 132                                    vk_info->tiling, NULL),
 133       .width = vk_info->extent.width,
 134       .height = vk_info->extent.height,
 135       .depth = vk_info->extent.depth,
 136       .levels = vk_info->mipLevels,
 137       .array_len = vk_info->arrayLayers,
 138       .samples = vk_info->samples,
 139       .min_alignment = 0,
 140       .min_pitch = 0,
 141       .usage = choose_isl_surf_usage(anv_info, aspect),
 142       .tiling_flags = tiling_flags);
 143
 144    /* isl_surf_init() will fail only if provided invalid input. Invalid input
 145     * is illegal in Vulkan.
 146     */
 147    assert(ok);
 148
 149    anv_surf->offset = align_u32(image->size, anv_surf->isl.alignment);
 150    image->size = anv_surf->offset + anv_surf->isl.size;
 151    image->alignment = MAX(image->alignment, anv_surf->isl.alignment);
 152
 153    return VK_SUCCESS;
 154 }
 155
 156 static VkImageUsageFlags
 157 anv_image_get_full_usage(const VkImageCreateInfo *info)
 158 {
 159    VkImageUsageFlags usage = info->usage;
 160
 161    if (usage & VK_IMAGE_USAGE_TRANSFER_SRC_BIT) {
 162       /* Meta will transfer from the image by binding it as a texture. */
 163       usage |= VK_IMAGE_USAGE_SAMPLED_BIT;
 164    }
 165
 166    if (usage & VK_IMAGE_USAGE_TRANSFER_DST_BIT) {
 167       /* Meta will transfer to the image by binding it as a color attachment,
 168        * even if the image format is not a color format.
 169        */
 170       usage |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 171    }
 172
 173    return usage;
 174 }
 175
 176 VkResult
 177 anv_image_create(VkDevice _device,
 178                  const struct anv_image_create_info *create_info,
 179                  const VkAllocationCallbacks* alloc,
 180                  VkImage *pImage)
 181 {
 182    ANV_FROM_HANDLE(anv_device, device, _device);
 183    const VkImageCreateInfo *pCreateInfo = create_info->vk_info;
 184    struct anv_image *image = NULL;
 185    VkResult r;
 186
 187    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO);
 188
 189    anv_assert(pCreateInfo->mipLevels > 0);
 190    anv_assert(pCreateInfo->arrayLayers > 0);
 191    anv_assert(pCreateInfo->samples > 0);
 192    anv_assert(pCreateInfo->extent.width > 0);
 193    anv_assert(pCreateInfo->extent.height > 0);
 194    anv_assert(pCreateInfo->extent.depth > 0);
 195
 196    image = anv_alloc2(&device->alloc, alloc, sizeof(*image), 8,
 197                       VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 198    if (!image)
 199       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 200
 201    memset(image, 0, sizeof(*image));
 202    image->type = pCreateInfo->imageType;
 203    image->extent = pCreateInfo->extent;
 204    image->vk_format = pCreateInfo->format;
 205    image->format = anv_format_for_vk_format(pCreateInfo->format);
 206    image->levels = pCreateInfo->mipLevels;
 207    image->array_size = pCreateInfo->arrayLayers;
 208    image->samples = pCreateInfo->samples;
 209    image->usage = anv_image_get_full_usage(pCreateInfo);
 210    image->tiling = pCreateInfo->tiling;
 211
 212    if (image->usage & VK_IMAGE_USAGE_SAMPLED_BIT) {
 213       image->needs_nonrt_surface_state = true;
 214    }
 215
 216    if (image->usage & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT) {
 217       image->needs_color_rt_surface_state = true;
 218    }
 219
 220    if (image->usage & VK_IMAGE_USAGE_STORAGE_BIT) {
 221       image->needs_storage_surface_state = true;
 222    }
 223
 224    if (likely(anv_format_is_color(image->format))) {
 225       r = make_surface(device, image, create_info,
 226                        VK_IMAGE_ASPECT_COLOR_BIT);
 227       if (r != VK_SUCCESS)
 228          goto fail;
 229    } else {
 230       if (image->format->depth_format) {
 231          r = make_surface(device, image, create_info,
 232                           VK_IMAGE_ASPECT_DEPTH_BIT);
 233          if (r != VK_SUCCESS)
 234             goto fail;
 235       }
 236
 237       if (image->format->has_stencil) {
 238          r = make_surface(device, image, create_info,
 239                           VK_IMAGE_ASPECT_STENCIL_BIT);
 240          if (r != VK_SUCCESS)
 241             goto fail;
 242       }
 243    }
 244
 245    *pImage = anv_image_to_handle(image);
 246
 247    return VK_SUCCESS;
 248
 249 fail:
 250    if (image)
 251       anv_free2(&device->alloc, alloc, image);
 252
 253    return r;
 254 }
 255
 256 VkResult
 257 anv_CreateImage(VkDevice device,
 258                 const VkImageCreateInfo *pCreateInfo,
 259                 const VkAllocationCallbacks *pAllocator,
 260                 VkImage *pImage)
 261 {
 262    return anv_image_create(device,
 263       &(struct anv_image_create_info) {
 264          .vk_info = pCreateInfo,
 265          .isl_tiling_flags = ISL_TILING_ANY_MASK,
 266       },
 267       pAllocator,
 268       pImage);
 269 }
 270
 271 void
 272 anv_DestroyImage(VkDevice _device, VkImage _image,
 273                  const VkAllocationCallbacks *pAllocator)
 274 {
 275    ANV_FROM_HANDLE(anv_device, device, _device);
 276
 277    anv_free2(&device->alloc, pAllocator, anv_image_from_handle(_image));
 278 }
 279
 280 static void
 281 anv_surface_get_subresource_layout(struct anv_image *image,
 282                                    struct anv_surface *surface,
 283                                    const VkImageSubresource *subresource,
 284                                    VkSubresourceLayout *layout)
 285 {
 286    /* If we are on a non-zero mip level or array slice, we need to
 287     * calculate a real offset.
 288     */
 289    anv_assert(subresource->mipLevel == 0);
 290    anv_assert(subresource->arrayLayer == 0);
 291
 292    layout->offset = surface->offset;
 293    layout->rowPitch = surface->isl.row_pitch;
 294    layout->depthPitch = isl_surf_get_array_pitch(&surface->isl);
 295    layout->arrayPitch = isl_surf_get_array_pitch(&surface->isl);
 296    layout->size = surface->isl.size;
 297 }
 298
 299 void anv_GetImageSubresourceLayout(
 300     VkDevice                                    device,
 301     VkImage                                     _image,
 302     const VkImageSubresource*                   pSubresource,
 303     VkSubresourceLayout*                        pLayout)
 304 {
 305    ANV_FROM_HANDLE(anv_image, image, _image);
 306
 307    assert(__builtin_popcount(pSubresource->aspectMask) == 1);
 308
 309    switch (pSubresource->aspectMask) {
 310    case VK_IMAGE_ASPECT_COLOR_BIT:
 311       anv_surface_get_subresource_layout(image, &image->color_surface,
 312                                          pSubresource, pLayout);
 313       break;
 314    case VK_IMAGE_ASPECT_DEPTH_BIT:
 315       anv_surface_get_subresource_layout(image, &image->depth_surface,
 316                                          pSubresource, pLayout);
 317       break;
 318    case VK_IMAGE_ASPECT_STENCIL_BIT:
 319       anv_surface_get_subresource_layout(image, &image->stencil_surface,
 320                                          pSubresource, pLayout);
 321       break;
 322    default:
 323       assert(!"Invalid image aspect");
 324    }
 325 }
 326
 327 VkResult
 328 anv_validate_CreateImageView(VkDevice _device,
 329                              const VkImageViewCreateInfo *pCreateInfo,
 330                              const VkAllocationCallbacks *pAllocator,
 331                              VkImageView *pView)
 332 {
 333    ANV_FROM_HANDLE(anv_image, image, pCreateInfo->image);
 334    const VkImageSubresourceRange *subresource;
 335    const struct anv_format *view_format_info;
 336
 337    /* Validate structure type before dereferencing it. */
 338    assert(pCreateInfo);
 339    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO);
 340    subresource = &pCreateInfo->subresourceRange;
 341
 342    /* Validate viewType is in range before using it. */
 343    assert(pCreateInfo->viewType >= VK_IMAGE_VIEW_TYPE_BEGIN_RANGE);
 344    assert(pCreateInfo->viewType <= VK_IMAGE_VIEW_TYPE_END_RANGE);
 345
 346    /* Validate format is in range before using it. */
 347    assert(pCreateInfo->format >= VK_FORMAT_BEGIN_RANGE);
 348    assert(pCreateInfo->format <= VK_FORMAT_END_RANGE);
 349    view_format_info = anv_format_for_vk_format(pCreateInfo->format);
 350
 351    /* Validate channel swizzles. */
 352    assert(pCreateInfo->components.r >= VK_COMPONENT_SWIZZLE_BEGIN_RANGE);
 353    assert(pCreateInfo->components.r <= VK_COMPONENT_SWIZZLE_END_RANGE);
 354    assert(pCreateInfo->components.g >= VK_COMPONENT_SWIZZLE_BEGIN_RANGE);
 355    assert(pCreateInfo->components.g <= VK_COMPONENT_SWIZZLE_END_RANGE);
 356    assert(pCreateInfo->components.b >= VK_COMPONENT_SWIZZLE_BEGIN_RANGE);
 357    assert(pCreateInfo->components.b <= VK_COMPONENT_SWIZZLE_END_RANGE);
 358    assert(pCreateInfo->components.a >= VK_COMPONENT_SWIZZLE_BEGIN_RANGE);
 359    assert(pCreateInfo->components.a <= VK_COMPONENT_SWIZZLE_END_RANGE);
 360
 361    /* Validate subresource. */
 362    assert(subresource->aspectMask != 0);
 363    assert(subresource->levelCount > 0);
 364    assert(subresource->layerCount > 0);
 365    assert(subresource->baseMipLevel < image->levels);
 366    assert(subresource->baseMipLevel + subresource->levelCount <= image->levels);
 367    assert(subresource->baseArrayLayer < image->array_size);
 368    assert(subresource->baseArrayLayer + subresource->layerCount <= image->array_size);
 369    assert(pView);
 370
 371    const VkImageAspectFlags ds_flags = VK_IMAGE_ASPECT_DEPTH_BIT
 372                                      | VK_IMAGE_ASPECT_STENCIL_BIT;
 373
 374    /* Validate format. */
 375    if (subresource->aspectMask & VK_IMAGE_ASPECT_COLOR_BIT) {
 376       assert(subresource->aspectMask == VK_IMAGE_ASPECT_COLOR_BIT);
 377       assert(!image->format->depth_format);
 378       assert(!image->format->has_stencil);
 379       assert(!view_format_info->depth_format);
 380       assert(!view_format_info->has_stencil);
 381       assert(view_format_info->isl_layout->bs ==
 382              image->format->isl_layout->bs);
 383    } else if (subresource->aspectMask & ds_flags) {
 384       assert((subresource->aspectMask & ~ds_flags) == 0);
 385
 386       if (subresource->aspectMask & VK_IMAGE_ASPECT_STENCIL_BIT) {
 387          assert(image->format->depth_format);
 388          assert(view_format_info->depth_format);
 389          assert(view_format_info->isl_layout->bs ==
 390                 image->format->isl_layout->bs);
 391       }
 392
 393       if (subresource->aspectMask & VK_IMAGE_ASPECT_STENCIL_BIT) {
 394          /* FINISHME: Is it legal to have an R8 view of S8? */
 395          assert(image->format->has_stencil);
 396          assert(view_format_info->has_stencil);
 397       }
 398    } else {
 399       assert(!"bad VkImageSubresourceRange::aspectFlags");
 400    }
 401
 402    return anv_CreateImageView(_device, pCreateInfo, pAllocator, pView);
 403 }
 404
 405 void
 406 anv_fill_image_surface_state(struct anv_device *device, struct anv_state state,
 407                              struct anv_image_view *iview,
 408                              const VkImageViewCreateInfo *pCreateInfo,
 409                              VkImageUsageFlagBits usage)
 410 {
 411    switch (device->info.gen) {
 412    case 7:
 413       if (device->info.is_haswell)
 414          gen75_fill_image_surface_state(device, state.map, iview,
 415                                         pCreateInfo, usage);
 416       else
 417          gen7_fill_image_surface_state(device, state.map, iview,
 418                                        pCreateInfo, usage);
 419       break;
 420    case 8:
 421       gen8_fill_image_surface_state(device, state.map, iview,
 422                                     pCreateInfo, usage);
 423       break;
 424    case 9:
 425       gen9_fill_image_surface_state(device, state.map, iview,
 426                                     pCreateInfo, usage);
 427       break;
 428    default:
 429       unreachable("unsupported gen\n");
 430    }
 431
 432    if (!device->info.has_llc)
 433       anv_state_clflush(state);
 434 }
 435
 436 static struct anv_state
 437 alloc_surface_state(struct anv_device *device,
 438                     struct anv_cmd_buffer *cmd_buffer)
 439 {
 440       if (cmd_buffer) {
 441          return anv_cmd_buffer_alloc_surface_state(cmd_buffer);
 442       } else {
 443          return anv_state_pool_alloc(&device->surface_state_pool, 64, 64);
 444       }
 445 }
 446
 447 static bool
 448 has_matching_storage_typed_format(const struct anv_device *device,
 449                                   enum isl_format format)
 450 {
 451    return (isl_format_get_layout(format)->bs <= 4 ||
 452            (isl_format_get_layout(format)->bs <= 8 &&
 453             (device->info.gen >= 8 || device->info.is_haswell)) ||
 454            device->info.gen >= 9);
 455 }
 456
 457 static VkComponentSwizzle
 458 remap_swizzle(VkComponentSwizzle swizzle, VkComponentSwizzle component,
 459               struct anv_format_swizzle format_swizzle)
 460 {
 461    if (swizzle == VK_COMPONENT_SWIZZLE_IDENTITY)
 462       swizzle = component;
 463
 464    switch (swizzle) {
 465    case VK_COMPONENT_SWIZZLE_ZERO:
 466       return VK_COMPONENT_SWIZZLE_ZERO;
 467    case VK_COMPONENT_SWIZZLE_ONE:
 468       return VK_COMPONENT_SWIZZLE_ONE;
 469    case VK_COMPONENT_SWIZZLE_R:
 470       return VK_COMPONENT_SWIZZLE_R + format_swizzle.r;
 471    case VK_COMPONENT_SWIZZLE_G:
 472       return VK_COMPONENT_SWIZZLE_R + format_swizzle.g;
 473    case VK_COMPONENT_SWIZZLE_B:
 474       return VK_COMPONENT_SWIZZLE_R + format_swizzle.b;
 475    case VK_COMPONENT_SWIZZLE_A:
 476       return VK_COMPONENT_SWIZZLE_R + format_swizzle.a;
 477    default:
 478       unreachable("Invalid swizzle");
 479    }
 480 }
 481
 482 void
 483 anv_image_view_init(struct anv_image_view *iview,
 484                     struct anv_device *device,
 485                     const VkImageViewCreateInfo* pCreateInfo,
 486                     struct anv_cmd_buffer *cmd_buffer)
 487 {
 488    ANV_FROM_HANDLE(anv_image, image, pCreateInfo->image);
 489    const VkImageSubresourceRange *range = &pCreateInfo->subresourceRange;
 490
 491    assert(range->layerCount > 0);
 492    assert(range->baseMipLevel < image->levels);
 493    assert(image->usage & (VK_IMAGE_USAGE_SAMPLED_BIT |
 494                           VK_IMAGE_USAGE_STORAGE_BIT |
 495                           VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |
 496                           VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT));
 497
 498    switch (image->type) {
 499    default:
 500       unreachable("bad VkImageType");
 501    case VK_IMAGE_TYPE_1D:
 502    case VK_IMAGE_TYPE_2D:
 503       assert(range->baseArrayLayer + range->layerCount - 1 <= image->array_size);
 504       break;
 505    case VK_IMAGE_TYPE_3D:
 506       assert(range->baseArrayLayer + range->layerCount - 1
 507              <= anv_minify(image->extent.depth, range->baseMipLevel));
 508       break;
 509    }
 510
 511    struct anv_surface *surface =
 512       anv_image_get_surface_for_aspect_mask(image, range->aspectMask);
 513
 514    iview->image = image;
 515    iview->bo = image->bo;
 516    iview->offset = image->offset + surface->offset;
 517
 518    iview->aspect_mask = pCreateInfo->subresourceRange.aspectMask;
 519    iview->vk_format = pCreateInfo->format;
 520
 521    struct anv_format_swizzle swizzle;
 522    iview->format = anv_get_isl_format(pCreateInfo->format, iview->aspect_mask,
 523                                       image->tiling, &swizzle);
 524    iview->swizzle.r = remap_swizzle(pCreateInfo->components.r,
 525                                     VK_COMPONENT_SWIZZLE_R, swizzle);
 526    iview->swizzle.g = remap_swizzle(pCreateInfo->components.g,
 527                                     VK_COMPONENT_SWIZZLE_G, swizzle);
 528    iview->swizzle.b = remap_swizzle(pCreateInfo->components.b,
 529                                     VK_COMPONENT_SWIZZLE_B, swizzle);
 530    iview->swizzle.a = remap_swizzle(pCreateInfo->components.a,
 531                                     VK_COMPONENT_SWIZZLE_A, swizzle);
 532
 533    iview->base_layer = range->baseArrayLayer;
 534    iview->base_mip = range->baseMipLevel;
 535    iview->extent = (VkExtent3D) {
 536       .width = anv_minify(image->extent.width, range->baseMipLevel),
 537       .height = anv_minify(image->extent.height, range->baseMipLevel),
 538       .depth = anv_minify(image->extent.depth, range->baseMipLevel),
 539    };
 540
 541    if (image->needs_nonrt_surface_state) {
 542       iview->nonrt_surface_state = alloc_surface_state(device, cmd_buffer);
 543
 544       anv_fill_image_surface_state(device, iview->nonrt_surface_state,
 545                                    iview, pCreateInfo,
 546                                    VK_IMAGE_USAGE_SAMPLED_BIT);
 547    } else {
 548       iview->nonrt_surface_state.alloc_size = 0;
 549    }
 550
 551    if (image->needs_color_rt_surface_state) {
 552       iview->color_rt_surface_state = alloc_surface_state(device, cmd_buffer);
 553
 554       anv_fill_image_surface_state(device, iview->color_rt_surface_state,
 555                                    iview, pCreateInfo,
 556                                    VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT);
 557    } else {
 558       iview->color_rt_surface_state.alloc_size = 0;
 559    }
 560
 561    if (image->needs_storage_surface_state) {
 562       iview->storage_surface_state = alloc_surface_state(device, cmd_buffer);
 563
 564       if (has_matching_storage_typed_format(device, iview->format))
 565          anv_fill_image_surface_state(device, iview->storage_surface_state,
 566                                       iview, pCreateInfo,
 567                                       VK_IMAGE_USAGE_STORAGE_BIT);
 568       else
 569          anv_fill_buffer_surface_state(device, iview->storage_surface_state,
 570                                        ISL_FORMAT_RAW,
 571                                        iview->offset,
 572                                        iview->bo->size - iview->offset, 1);
 573
 574    } else {
 575       iview->storage_surface_state.alloc_size = 0;
 576    }
 577 }
 578
 579 VkResult
 580 anv_CreateImageView(VkDevice _device,
 581                     const VkImageViewCreateInfo *pCreateInfo,
 582                     const VkAllocationCallbacks *pAllocator,
 583                     VkImageView *pView)
 584 {
 585    ANV_FROM_HANDLE(anv_device, device, _device);
 586    struct anv_image_view *view;
 587
 588    view = anv_alloc2(&device->alloc, pAllocator, sizeof(*view), 8,
 589                      VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 590    if (view == NULL)
 591       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 592
 593    anv_image_view_init(view, device, pCreateInfo, NULL);
 594
 595    *pView = anv_image_view_to_handle(view);
 596
 597    return VK_SUCCESS;
 598 }
 599
 600 void
 601 anv_DestroyImageView(VkDevice _device, VkImageView _iview,
 602                      const VkAllocationCallbacks *pAllocator)
 603 {
 604    ANV_FROM_HANDLE(anv_device, device, _device);
 605    ANV_FROM_HANDLE(anv_image_view, iview, _iview);
 606
 607    if (iview->image->needs_color_rt_surface_state) {
 608       anv_state_pool_free(&device->surface_state_pool,
 609                           iview->color_rt_surface_state);
 610    }
 611
 612    if (iview->image->needs_nonrt_surface_state) {
 613       anv_state_pool_free(&device->surface_state_pool,
 614                           iview->nonrt_surface_state);
 615    }
 616
 617    if (iview->image->needs_storage_surface_state) {
 618       anv_state_pool_free(&device->surface_state_pool,
 619                           iview->storage_surface_state);
 620    }
 621
 622    anv_free2(&device->alloc, pAllocator, iview);
 623 }
 624
 625 VkResult
 626 anv_CreateBufferView(VkDevice _device,
 627                      const VkBufferViewCreateInfo *pCreateInfo,
 628                      const VkAllocationCallbacks *pAllocator,
 629                      VkBufferView *pView)
 630 {
 631    ANV_FROM_HANDLE(anv_device, device, _device);
 632    ANV_FROM_HANDLE(anv_buffer, buffer, pCreateInfo->buffer);
 633    struct anv_buffer_view *view;
 634
 635    view = anv_alloc2(&device->alloc, pAllocator, sizeof(*view), 8,
 636                      VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
 637    if (!view)
 638       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 639
 640    const struct anv_format *format =
 641       anv_format_for_vk_format(pCreateInfo->format);
 642
 643    view->format = format->surface_format;
 644    view->bo = buffer->bo;
 645    view->offset = buffer->offset + pCreateInfo->offset;
 646    view->range = pCreateInfo->range == VK_WHOLE_SIZE ?
 647                  buffer->size - view->offset : pCreateInfo->range;
 648
 649    if (buffer->usage & VK_BUFFER_USAGE_UNIFORM_TEXEL_BUFFER_BIT) {
 650       view->surface_state =
 651          anv_state_pool_alloc(&device->surface_state_pool, 64, 64);
 652
 653       anv_fill_buffer_surface_state(device, view->surface_state,
 654                                     view->format,
 655                                     view->offset, view->range,
 656                                     format->isl_layout->bs);
 657    } else {
 658       view->surface_state = (struct anv_state){ 0 };
 659    }
 660
 661    if (buffer->usage & VK_BUFFER_USAGE_STORAGE_TEXEL_BUFFER_BIT) {
 662       view->storage_surface_state =
 663          anv_state_pool_alloc(&device->surface_state_pool, 64, 64);
 664
 665       enum isl_format storage_format =
 666          has_matching_storage_typed_format(device, view->format) ?
 667          isl_lower_storage_image_format(&device->isl_dev, view->format) :
 668          ISL_FORMAT_RAW;
 669
 670       anv_fill_buffer_surface_state(device, view->storage_surface_state,
 671                                     storage_format,
 672                                     view->offset, view->range,
 673                                     (storage_format == ISL_FORMAT_RAW ? 1 :
 674                                      format->isl_layout->bs));
 675
 676    } else {
 677       view->storage_surface_state = (struct anv_state){ 0 };
 678    }
 679
 680    *pView = anv_buffer_view_to_handle(view);
 681
 682    return VK_SUCCESS;
 683 }
 684
 685 void
 686 anv_DestroyBufferView(VkDevice _device, VkBufferView bufferView,
 687                       const VkAllocationCallbacks *pAllocator)
 688 {
 689    ANV_FROM_HANDLE(anv_device, device, _device);
 690    ANV_FROM_HANDLE(anv_buffer_view, view, bufferView);
 691
 692    if (view->surface_state.alloc_size > 0)
 693       anv_state_pool_free(&device->surface_state_pool,
 694                           view->surface_state);
 695
 696    if (view->storage_surface_state.alloc_size > 0)
 697       anv_state_pool_free(&device->surface_state_pool,
 698                           view->storage_surface_state);
 699
 700    anv_free2(&device->alloc, pAllocator, view);
 701 }
 702
 703 struct anv_surface *
 704 anv_image_get_surface_for_aspect_mask(struct anv_image *image, VkImageAspectFlags aspect_mask)
 705 {
 706    switch (aspect_mask) {
 707    case VK_IMAGE_ASPECT_COLOR_BIT:
 708       /* Dragons will eat you.
 709        *
 710        * Meta attaches all destination surfaces as color render targets. Guess
 711        * what surface the Meta Dragons really want.
 712        */
 713       if (image->format->depth_format && image->format->has_stencil) {
 714          return &image->depth_surface;
 715       } else if (image->format->depth_format) {
 716          return &image->depth_surface;
 717       } else if (image->format->has_stencil) {
 718          return &image->stencil_surface;
 719       } else {
 720          return &image->color_surface;
 721       }
 722       break;
 723    case VK_IMAGE_ASPECT_DEPTH_BIT:
 724       assert(image->format->depth_format);
 725       return &image->depth_surface;
 726    case VK_IMAGE_ASPECT_STENCIL_BIT:
 727       assert(image->format->has_stencil);
 728       return &image->stencil_surface;
 729    case VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT:
 730       if (image->format->depth_format && image->format->has_stencil) {
 731          /* FINISHME: The Vulkan spec (git a511ba2) requires support for
 732           * combined depth stencil formats. Specifically, it states:
 733           *
 734           *    At least one of ename:VK_FORMAT_D24_UNORM_S8_UINT or
 735           *    ename:VK_FORMAT_D32_SFLOAT_S8_UINT must be supported.
 736           *
 737           * Image views with both depth and stencil aspects are only valid for
 738           * render target attachments, in which case
 739           * cmd_buffer_emit_depth_stencil() will pick out both the depth and
 740           * stencil surfaces from the underlying surface.
 741           */
 742          return &image->depth_surface;
 743       } else if (image->format->depth_format) {
 744          return &image->depth_surface;
 745       } else if (image->format->has_stencil) {
 746          return &image->stencil_surface;
 747       }
 748       /* fallthrough */
 749     default:
 750        unreachable("image does not have aspect");
 751        return NULL;
 752    }
 753 }
 754
 755 static void
 756 image_param_defaults(struct brw_image_param *param)
 757 {
 758    memset(param, 0, sizeof *param);
 759    /* Set the swizzling shifts to all-ones to effectively disable swizzling --
 760     * See emit_address_calculation() in brw_fs_surface_builder.cpp for a more
 761     * detailed explanation of these parameters.
 762     */
 763    param->swizzling[0] = 0xff;
 764    param->swizzling[1] = 0xff;
 765 }
 766
 767 void
 768 anv_image_view_fill_image_param(struct anv_device *device,
 769                                 struct anv_image_view *view,
 770                                 struct brw_image_param *param)
 771 {
 772    image_param_defaults(param);
 773
 774    const struct isl_surf *surf = &view->image->color_surface.isl;
 775    const int cpp = isl_format_get_layout(surf->format)->bs;
 776    const struct isl_extent3d image_align_sa =
 777       isl_surf_get_image_alignment_sa(surf);
 778
 779    param->size[0] = view->extent.width;
 780    param->size[1] = view->extent.height;
 781    if (surf->dim == ISL_SURF_DIM_3D) {
 782       param->size[2] = view->extent.depth;
 783    } else {
 784       param->size[2] = surf->logical_level0_px.array_len - view->base_layer;
 785    }
 786
 787    isl_surf_get_image_offset_el(surf, view->base_mip, view->base_layer, 0,
 788                                 &param->offset[0],  &param->offset[1]);
 789
 790    param->stride[0] = cpp;
 791    param->stride[1] = surf->row_pitch / cpp;
 792
 793    if (device->info.gen < 9 && surf->dim == ISL_SURF_DIM_3D) {
 794       param->stride[2] = util_align_npot(param->size[0], image_align_sa.w);
 795       param->stride[3] = util_align_npot(param->size[1], image_align_sa.h);
 796    } else {
 797       param->stride[2] = 0;
 798       param->stride[3] = isl_surf_get_array_pitch_el_rows(surf);
 799    }
 800
 801    switch (surf->tiling) {
 802    case ISL_TILING_LINEAR:
 803       /* image_param_defaults is good enough */
 804       break;
 805
 806    case ISL_TILING_X:
 807       /* An X tile is a rectangular block of 512x8 bytes. */
 808       param->tiling[0] = util_logbase2(512 / cpp);
 809       param->tiling[1] = util_logbase2(8);
 810
 811       if (device->isl_dev.has_bit6_swizzling) {
 812          /* Right shifts required to swizzle bits 9 and 10 of the memory
 813           * address with bit 6.
 814           */
 815          param->swizzling[0] = 3;
 816          param->swizzling[1] = 4;
 817       }
 818       break;
 819
 820    case ISL_TILING_Y0:
 821       /* The layout of a Y-tiled surface in memory isn't really fundamentally
 822        * different to the layout of an X-tiled surface, we simply pretend that
 823        * the surface is broken up in a number of smaller 16Bx32 tiles, each
 824        * one arranged in X-major order just like is the case for X-tiling.
 825        */
 826       param->tiling[0] = util_logbase2(16 / cpp);
 827       param->tiling[1] = util_logbase2(32);
 828
 829       if (device->isl_dev.has_bit6_swizzling) {
 830          /* Right shift required to swizzle bit 9 of the memory address with
 831           * bit 6.
 832           */
 833          param->swizzling[0] = 3;
 834          param->swizzling[1] = 0xff;
 835       }
 836       break;
 837
 838    default:
 839       assert(!"Unhandled storage image tiling");
 840    }
 841
 842    /* 3D textures are arranged in 2D in memory with 2^lod slices per row.  The
 843     * address calculation algorithm (emit_address_calculation() in
 844     * brw_fs_surface_builder.cpp) handles this as a sort of tiling with
 845     * modulus equal to the LOD.
 846     */
 847    param->tiling[2] = (device->info.gen < 9 && surf->dim == ISL_SURF_DIM_3D ?
 848                        view->base_mip : 0);
 849 }
 850
 851 void
 852 anv_buffer_view_fill_image_param(struct anv_device *device,
 853                                  struct anv_buffer_view *view,
 854                                  struct brw_image_param *param)
 855 {
 856    image_param_defaults(param);
 857
 858    param->stride[0] = isl_format_layouts[view->format].bs;
 859    param->size[0] = view->range / param->stride[0];
 860 }