anv_intel.c revision b8e80941 
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
32VkResult 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 =
57      &(VkImageCreateInfo) {
58         .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
59         .imageType = VK_IMAGE_TYPE_2D,
60         .format = pCreateInfo->format,
61         .extent = pCreateInfo->extent,
62         .mipLevels = 1,
63         .arrayLayers = 1,
64         .samples = 1,
65         /* FIXME: Need a way to use X tiling to allow scanout */
66         .tiling = VK_IMAGE_TILING_OPTIMAL,
67         .usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
68         .flags = 0,
69      }},
70      pAllocator, &image_h);
71   if (result != VK_SUCCESS)
72      goto fail;
73
74   image = anv_image_from_handle(image_h);
75
76   uint64_t bo_flags = ANV_BO_EXTERNAL;
77   if (device->instance->physicalDevice.supports_48bit_addresses)
78      bo_flags |= EXEC_OBJECT_SUPPORTS_48B_ADDRESS;
79   if (device->instance->physicalDevice.use_softpin)
80      bo_flags |= EXEC_OBJECT_PINNED;
81
82   result = anv_bo_cache_import(device, &device->bo_cache,
83                                pCreateInfo->fd, bo_flags, &mem->bo);
84   if (result != VK_SUCCESS)
85      goto fail_import;
86
87   VkDeviceSize aligned_image_size = align_u64(image->size, 4096);
88
89   if (mem->bo->size < aligned_image_size) {
90      result = vk_errorf(device->instance, device,
91                         VK_ERROR_INVALID_EXTERNAL_HANDLE,
92                         "dma-buf too small for image in "
93                         "vkCreateDmaBufImageINTEL: %"PRIu64"B < %"PRIu64"B",
94                         mem->bo->size, aligned_image_size);
95      anv_bo_cache_release(device, &device->bo_cache, mem->bo);
96      goto fail_import;
97   }
98
99   image->planes[0].address = (struct anv_address) {
100      .bo = mem->bo,
101      .offset = 0,
102   };
103
104   assert(image->extent.width > 0);
105   assert(image->extent.height > 0);
106   assert(image->extent.depth == 1);
107
108   *pMem = anv_device_memory_to_handle(mem);
109   *pImage = anv_image_to_handle(image);
110
111   close(pCreateInfo->fd);
112
113   return VK_SUCCESS;
114
115 fail_import:
116   vk_free2(&device->alloc, pAllocator, image);
117
118 fail:
119   vk_free2(&device->alloc, pAllocator, mem);
120
121   return result;
122}
123