src/intel/vulkan/anv_intel.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 VkResult anv_CreateDmaBufImageINTEL(
  33     VkDevice                                    _device,
  34     const VkDmaBufImageCreateInfo*              pCreateInfo,
  35     const VkAllocationCallbacks*                pAllocator,
  36     VkDeviceMemory*                             pMem,
  37     VkImage*                                    pImage)
  38 {
  39    ANV_FROM_HANDLE(anv_device, device, _device);
  40    struct anv_device_memory *mem;
  41    struct anv_image *image;
  42    VkResult result;
  43    VkImage image_h;
  44
  45    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_DMA_BUF_IMAGE_CREATE_INFO_INTEL);
  46
  47    mem = vk_alloc2(&device->alloc, pAllocator, sizeof(*mem), 8,
  48                     VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
  49    if (mem == NULL)
  50       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
  51
  52    result = anv_image_create(_device,
  53       &(struct anv_image_create_info) {
  54          .isl_tiling_flags = ISL_TILING_X_BIT,
  55          .stride = pCreateInfo->strideInBytes,
  56          .vk_info = &(VkImageCreateInfo) {
  57             .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
  58             .imageType = VK_IMAGE_TYPE_2D,
  59             .format = pCreateInfo->format,
  60             .extent = pCreateInfo->extent,
  61             .mipLevels = 1,
  62             .arrayLayers = 1,
  63             .samples = 1,
  64             /* FIXME: Need a way to use X tiling to allow scanout */
  65             .tiling = VK_IMAGE_TILING_OPTIMAL,
  66             .usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
  67             .flags = 0,
  68          }
  69       }, pAllocator, &image_h);
  70    if (result != VK_SUCCESS)
  71       goto fail;
  72
  73    image = anv_image_from_handle(image_h);
  74
  75    uint64_t bo_flags = ANV_BO_EXTERNAL;
  76    if (device->instance->physicalDevice.supports_48bit_addresses)
  77       bo_flags |= EXEC_OBJECT_SUPPORTS_48B_ADDRESS;
  78    if (device->instance->physicalDevice.use_softpin)
  79       bo_flags |= EXEC_OBJECT_PINNED;
  80
  81    result = anv_bo_cache_import(device, &device->bo_cache,
  82                                 pCreateInfo->fd, bo_flags, &mem->bo);
  83    if (result != VK_SUCCESS)
  84       goto fail_import;
  85
  86    VkDeviceSize aligned_image_size = align_u64(image->size, 4096);
  87
  88    if (mem->bo->size < aligned_image_size) {
  89       result = vk_errorf(device->instance, device,
  90                          VK_ERROR_INVALID_EXTERNAL_HANDLE,
  91                          "dma-buf too small for image in "
  92                          "vkCreateDmaBufImageINTEL: %"PRIu64"B < "PRIu64"B",
  93                          mem->bo->size, aligned_image_size);
  94       anv_bo_cache_release(device, &device->bo_cache, mem->bo);
  95       goto fail_import;
  96    }
  97
  98    image->planes[0].address = (struct anv_address) {
  99       .bo = mem->bo,
 100       .offset = 0,
 101    };
 102
 103    assert(image->extent.width > 0);
 104    assert(image->extent.height > 0);
 105    assert(image->extent.depth == 1);
 106
 107    *pMem = anv_device_memory_to_handle(mem);
 108    *pImage = anv_image_to_handle(image);
 109
 110    close(pCreateInfo->fd);
 111
 112    return VK_SUCCESS;
 113
 114  fail_import:
 115    vk_free2(&device->alloc, pAllocator, image);
 116
 117  fail:
 118    vk_free2(&device->alloc, pAllocator, mem);
 119
 120    return result;
 121 }