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1 /*
2  * Copyright © 2017 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 "wsi_common_private.h"
25 #include "util/macros.h"
26 #include "util/os_file.h"
27 #include "util/xmlconfig.h"
28 #include "vk_util.h"
29 #include "drm-uapi/drm_fourcc.h"
30 
31 #include <time.h>
32 #include <unistd.h>
33 #include <stdlib.h>
34 #include <stdio.h>
35 #include <xf86drm.h>
36 
37 bool
wsi_device_matches_drm_fd(const struct wsi_device * wsi,int drm_fd)38 wsi_device_matches_drm_fd(const struct wsi_device *wsi, int drm_fd)
39 {
40    drmDevicePtr fd_device;
41    int ret = drmGetDevice2(drm_fd, 0, &fd_device);
42    if (ret)
43       return false;
44 
45    bool match = false;
46    switch (fd_device->bustype) {
47    case DRM_BUS_PCI:
48       match = wsi->pci_bus_info.pciDomain == fd_device->businfo.pci->domain &&
49               wsi->pci_bus_info.pciBus == fd_device->businfo.pci->bus &&
50               wsi->pci_bus_info.pciDevice == fd_device->businfo.pci->dev &&
51               wsi->pci_bus_info.pciFunction == fd_device->businfo.pci->func;
52       break;
53 
54    default:
55       break;
56    }
57 
58    drmFreeDevice(&fd_device);
59 
60    return match;
61 }
62 
63 static uint32_t
select_memory_type(const struct wsi_device * wsi,VkMemoryPropertyFlags props,uint32_t type_bits)64 select_memory_type(const struct wsi_device *wsi,
65                    VkMemoryPropertyFlags props,
66                    uint32_t type_bits)
67 {
68    for (uint32_t i = 0; i < wsi->memory_props.memoryTypeCount; i++) {
69        const VkMemoryType type = wsi->memory_props.memoryTypes[i];
70        if ((type_bits & (1 << i)) && (type.propertyFlags & props) == props)
71          return i;
72    }
73 
74    unreachable("No memory type found");
75 }
76 
77 static uint32_t
vk_format_size(VkFormat format)78 vk_format_size(VkFormat format)
79 {
80    switch (format) {
81    case VK_FORMAT_B8G8R8A8_UNORM:
82    case VK_FORMAT_B8G8R8A8_SRGB:
83       return 4;
84    default:
85       unreachable("Unknown WSI Format");
86    }
87 }
88 
89 VkResult
wsi_create_native_image(const struct wsi_swapchain * chain,const VkSwapchainCreateInfoKHR * pCreateInfo,uint32_t num_modifier_lists,const uint32_t * num_modifiers,const uint64_t * const * modifiers,struct wsi_image * image)90 wsi_create_native_image(const struct wsi_swapchain *chain,
91                         const VkSwapchainCreateInfoKHR *pCreateInfo,
92                         uint32_t num_modifier_lists,
93                         const uint32_t *num_modifiers,
94                         const uint64_t *const *modifiers,
95                         struct wsi_image *image)
96 {
97    const struct wsi_device *wsi = chain->wsi;
98    VkResult result;
99 
100    memset(image, 0, sizeof(*image));
101    for (int i = 0; i < ARRAY_SIZE(image->fds); i++)
102       image->fds[i] = -1;
103 
104    VkImageCreateInfo image_info = {
105       .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
106       .flags = 0,
107       .imageType = VK_IMAGE_TYPE_2D,
108       .format = pCreateInfo->imageFormat,
109       .extent = {
110          .width = pCreateInfo->imageExtent.width,
111          .height = pCreateInfo->imageExtent.height,
112          .depth = 1,
113       },
114       .mipLevels = 1,
115       .arrayLayers = 1,
116       .samples = VK_SAMPLE_COUNT_1_BIT,
117       .tiling = VK_IMAGE_TILING_OPTIMAL,
118       .usage = pCreateInfo->imageUsage,
119       .sharingMode = pCreateInfo->imageSharingMode,
120       .queueFamilyIndexCount = pCreateInfo->queueFamilyIndexCount,
121       .pQueueFamilyIndices = pCreateInfo->pQueueFamilyIndices,
122       .initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
123    };
124 
125    VkImageFormatListCreateInfoKHR image_format_list;
126    if (pCreateInfo->flags & VK_SWAPCHAIN_CREATE_MUTABLE_FORMAT_BIT_KHR) {
127       image_info.flags |= VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT |
128                           VK_IMAGE_CREATE_EXTENDED_USAGE_BIT_KHR;
129 
130       const VkImageFormatListCreateInfoKHR *format_list =
131          vk_find_struct_const(pCreateInfo->pNext,
132                               IMAGE_FORMAT_LIST_CREATE_INFO_KHR);
133 
134 #ifndef NDEBUG
135       assume(format_list && format_list->viewFormatCount > 0);
136       bool format_found = false;
137       for (int i = 0; i < format_list->viewFormatCount; i++)
138          if (pCreateInfo->imageFormat == format_list->pViewFormats[i])
139             format_found = true;
140       assert(format_found);
141 #endif
142 
143       image_format_list = *format_list;
144       image_format_list.pNext = NULL;
145       __vk_append_struct(&image_info, &image_format_list);
146    }
147 
148    struct wsi_image_create_info image_wsi_info;
149    VkImageDrmFormatModifierListCreateInfoEXT image_modifier_list;
150 
151    uint32_t image_modifier_count = 0, modifier_prop_count = 0;
152    struct VkDrmFormatModifierPropertiesEXT *modifier_props = NULL;
153    uint64_t *image_modifiers = NULL;
154    if (num_modifier_lists == 0) {
155       /* If we don't have modifiers, fall back to the legacy "scanout" flag */
156       image_wsi_info = (struct wsi_image_create_info) {
157          .sType = VK_STRUCTURE_TYPE_WSI_IMAGE_CREATE_INFO_MESA,
158          .scanout = true,
159       };
160       __vk_append_struct(&image_info, &image_wsi_info);
161    } else {
162       /* The winsys can't request modifiers if we don't support them. */
163       assert(wsi->supports_modifiers);
164       struct VkDrmFormatModifierPropertiesListEXT modifier_props_list = {
165          .sType = VK_STRUCTURE_TYPE_DRM_FORMAT_MODIFIER_PROPERTIES_LIST_EXT,
166       };
167       VkFormatProperties2 format_props = {
168          .sType = VK_STRUCTURE_TYPE_FORMAT_PROPERTIES_2,
169          .pNext = &modifier_props_list,
170       };
171       wsi->GetPhysicalDeviceFormatProperties2KHR(wsi->pdevice,
172                                                  pCreateInfo->imageFormat,
173                                                  &format_props);
174       assert(modifier_props_list.drmFormatModifierCount > 0);
175       modifier_props = vk_alloc(&chain->alloc,
176                                 sizeof(*modifier_props) *
177                                 modifier_props_list.drmFormatModifierCount,
178                                 8,
179                                 VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
180       if (!modifier_props) {
181          result = VK_ERROR_OUT_OF_HOST_MEMORY;
182          goto fail;
183       }
184 
185       modifier_props_list.pDrmFormatModifierProperties = modifier_props;
186       wsi->GetPhysicalDeviceFormatProperties2KHR(wsi->pdevice,
187                                                  pCreateInfo->imageFormat,
188                                                  &format_props);
189 
190       /* Call GetImageFormatProperties with every modifier and filter the list
191        * down to those that we know work.
192        */
193       modifier_prop_count = 0;
194       for (uint32_t i = 0; i < modifier_props_list.drmFormatModifierCount; i++) {
195          VkPhysicalDeviceImageDrmFormatModifierInfoEXT mod_info = {
196             .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_DRM_FORMAT_MODIFIER_INFO_EXT,
197             .drmFormatModifier = modifier_props[i].drmFormatModifier,
198             .sharingMode = pCreateInfo->imageSharingMode,
199             .queueFamilyIndexCount = pCreateInfo->queueFamilyIndexCount,
200             .pQueueFamilyIndices = pCreateInfo->pQueueFamilyIndices,
201          };
202          VkPhysicalDeviceImageFormatInfo2 format_info = {
203             .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_FORMAT_INFO_2,
204             .format = pCreateInfo->imageFormat,
205             .type = VK_IMAGE_TYPE_2D,
206             .tiling = VK_IMAGE_TILING_DRM_FORMAT_MODIFIER_EXT,
207             .usage = pCreateInfo->imageUsage,
208             .flags = image_info.flags,
209          };
210 
211          VkImageFormatListCreateInfoKHR format_list;
212          if (image_info.flags & VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT) {
213             format_list = image_format_list;
214             format_list.pNext = NULL;
215             __vk_append_struct(&format_info, &format_list);
216          }
217 
218          VkImageFormatProperties2 format_props = {
219             .sType = VK_STRUCTURE_TYPE_IMAGE_FORMAT_PROPERTIES_2,
220             .pNext = NULL,
221          };
222          __vk_append_struct(&format_info, &mod_info);
223          result = wsi->GetPhysicalDeviceImageFormatProperties2(wsi->pdevice,
224                                                                &format_info,
225                                                                &format_props);
226          if (result == VK_SUCCESS)
227             modifier_props[modifier_prop_count++] = modifier_props[i];
228       }
229 
230       uint32_t max_modifier_count = 0;
231       for (uint32_t l = 0; l < num_modifier_lists; l++)
232          max_modifier_count = MAX2(max_modifier_count, num_modifiers[l]);
233 
234       image_modifiers = vk_alloc(&chain->alloc,
235                                  sizeof(*image_modifiers) *
236                                  max_modifier_count,
237                                  8,
238                                  VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
239       if (!image_modifiers) {
240          result = VK_ERROR_OUT_OF_HOST_MEMORY;
241          goto fail;
242       }
243 
244       image_modifier_count = 0;
245       for (uint32_t l = 0; l < num_modifier_lists; l++) {
246          /* Walk the modifier lists and construct a list of supported
247           * modifiers.
248           */
249          for (uint32_t i = 0; i < num_modifiers[l]; i++) {
250             for (uint32_t j = 0; j < modifier_prop_count; j++) {
251                if (modifier_props[j].drmFormatModifier == modifiers[l][i])
252                   image_modifiers[image_modifier_count++] = modifiers[l][i];
253             }
254          }
255 
256          /* We only want to take the modifiers from the first list */
257          if (image_modifier_count > 0)
258             break;
259       }
260 
261       if (image_modifier_count > 0) {
262          image_modifier_list = (VkImageDrmFormatModifierListCreateInfoEXT) {
263             .sType = VK_STRUCTURE_TYPE_IMAGE_DRM_FORMAT_MODIFIER_LIST_CREATE_INFO_EXT,
264             .drmFormatModifierCount = image_modifier_count,
265             .pDrmFormatModifiers = image_modifiers,
266          };
267          image_info.tiling = VK_IMAGE_TILING_DRM_FORMAT_MODIFIER_EXT;
268          __vk_append_struct(&image_info, &image_modifier_list);
269       } else {
270          /* TODO: Add a proper error here */
271          assert(!"Failed to find a supported modifier!  This should never "
272                  "happen because LINEAR should always be available");
273          result = VK_ERROR_OUT_OF_HOST_MEMORY;
274          goto fail;
275       }
276    }
277 
278    result = wsi->CreateImage(chain->device, &image_info,
279                              &chain->alloc, &image->image);
280    if (result != VK_SUCCESS)
281       goto fail;
282 
283    VkMemoryRequirements reqs;
284    wsi->GetImageMemoryRequirements(chain->device, image->image, &reqs);
285 
286    const struct wsi_memory_allocate_info memory_wsi_info = {
287       .sType = VK_STRUCTURE_TYPE_WSI_MEMORY_ALLOCATE_INFO_MESA,
288       .pNext = NULL,
289       .implicit_sync = true,
290    };
291    const VkExportMemoryAllocateInfo memory_export_info = {
292       .sType = VK_STRUCTURE_TYPE_EXPORT_MEMORY_ALLOCATE_INFO,
293       .pNext = &memory_wsi_info,
294       .handleTypes = VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT,
295    };
296    const VkMemoryDedicatedAllocateInfo memory_dedicated_info = {
297       .sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO,
298       .pNext = &memory_export_info,
299       .image = image->image,
300       .buffer = VK_NULL_HANDLE,
301    };
302    const VkMemoryAllocateInfo memory_info = {
303       .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
304       .pNext = &memory_dedicated_info,
305       .allocationSize = reqs.size,
306       .memoryTypeIndex = select_memory_type(wsi, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
307                                             reqs.memoryTypeBits),
308    };
309    result = wsi->AllocateMemory(chain->device, &memory_info,
310                                 &chain->alloc, &image->memory);
311    if (result != VK_SUCCESS)
312       goto fail;
313 
314    result = wsi->BindImageMemory(chain->device, image->image,
315                                  image->memory, 0);
316    if (result != VK_SUCCESS)
317       goto fail;
318 
319    int fd = -1;
320    if (!wsi->sw) {
321       const VkMemoryGetFdInfoKHR memory_get_fd_info = {
322          .sType = VK_STRUCTURE_TYPE_MEMORY_GET_FD_INFO_KHR,
323          .pNext = NULL,
324          .memory = image->memory,
325          .handleType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT,
326       };
327 
328       result = wsi->GetMemoryFdKHR(chain->device, &memory_get_fd_info, &fd);
329       if (result != VK_SUCCESS)
330          goto fail;
331    }
332 
333    if (!wsi->sw && num_modifier_lists > 0) {
334       VkImageDrmFormatModifierPropertiesEXT image_mod_props = {
335          .sType = VK_STRUCTURE_TYPE_IMAGE_DRM_FORMAT_MODIFIER_PROPERTIES_EXT,
336       };
337       result = wsi->GetImageDrmFormatModifierPropertiesEXT(chain->device,
338                                                            image->image,
339                                                            &image_mod_props);
340       if (result != VK_SUCCESS) {
341          close(fd);
342          goto fail;
343       }
344       image->drm_modifier = image_mod_props.drmFormatModifier;
345       assert(image->drm_modifier != DRM_FORMAT_MOD_INVALID);
346 
347       for (uint32_t j = 0; j < modifier_prop_count; j++) {
348          if (modifier_props[j].drmFormatModifier == image->drm_modifier) {
349             image->num_planes = modifier_props[j].drmFormatModifierPlaneCount;
350             break;
351          }
352       }
353 
354       for (uint32_t p = 0; p < image->num_planes; p++) {
355          const VkImageSubresource image_subresource = {
356             .aspectMask = VK_IMAGE_ASPECT_PLANE_0_BIT << p,
357             .mipLevel = 0,
358             .arrayLayer = 0,
359          };
360          VkSubresourceLayout image_layout;
361          wsi->GetImageSubresourceLayout(chain->device, image->image,
362                                         &image_subresource, &image_layout);
363          image->sizes[p] = image_layout.size;
364          image->row_pitches[p] = image_layout.rowPitch;
365          image->offsets[p] = image_layout.offset;
366          if (p == 0) {
367             image->fds[p] = fd;
368          } else {
369             image->fds[p] = os_dupfd_cloexec(fd);
370             if (image->fds[p] == -1) {
371                for (uint32_t i = 0; i < p; i++)
372                   close(image->fds[i]);
373 
374                result = VK_ERROR_OUT_OF_HOST_MEMORY;
375                goto fail;
376             }
377          }
378       }
379    } else {
380       const VkImageSubresource image_subresource = {
381          .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
382          .mipLevel = 0,
383          .arrayLayer = 0,
384       };
385       VkSubresourceLayout image_layout;
386       wsi->GetImageSubresourceLayout(chain->device, image->image,
387                                      &image_subresource, &image_layout);
388 
389       image->drm_modifier = DRM_FORMAT_MOD_INVALID;
390       image->num_planes = 1;
391       image->sizes[0] = reqs.size;
392       image->row_pitches[0] = image_layout.rowPitch;
393       image->offsets[0] = 0;
394       image->fds[0] = fd;
395    }
396 
397    vk_free(&chain->alloc, modifier_props);
398    vk_free(&chain->alloc, image_modifiers);
399 
400    return VK_SUCCESS;
401 
402 fail:
403    vk_free(&chain->alloc, modifier_props);
404    vk_free(&chain->alloc, image_modifiers);
405    wsi_destroy_image(chain, image);
406 
407    return result;
408 }
409 
410 static inline uint32_t
align_u32(uint32_t v,uint32_t a)411 align_u32(uint32_t v, uint32_t a)
412 {
413    assert(a != 0 && a == (a & -a));
414    return (v + a - 1) & ~(a - 1);
415 }
416 
417 #define WSI_PRIME_LINEAR_STRIDE_ALIGN 256
418 
419 VkResult
wsi_create_prime_image(const struct wsi_swapchain * chain,const VkSwapchainCreateInfoKHR * pCreateInfo,bool use_modifier,struct wsi_image * image)420 wsi_create_prime_image(const struct wsi_swapchain *chain,
421                        const VkSwapchainCreateInfoKHR *pCreateInfo,
422                        bool use_modifier,
423                        struct wsi_image *image)
424 {
425    const struct wsi_device *wsi = chain->wsi;
426    VkResult result;
427 
428    memset(image, 0, sizeof(*image));
429 
430    const uint32_t cpp = vk_format_size(pCreateInfo->imageFormat);
431    const uint32_t linear_stride = align_u32(pCreateInfo->imageExtent.width * cpp,
432                                             WSI_PRIME_LINEAR_STRIDE_ALIGN);
433 
434    uint32_t linear_size = linear_stride * pCreateInfo->imageExtent.height;
435    linear_size = align_u32(linear_size, 4096);
436 
437    const VkExternalMemoryBufferCreateInfo prime_buffer_external_info = {
438       .sType = VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_BUFFER_CREATE_INFO,
439       .pNext = NULL,
440       .handleTypes = VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT,
441    };
442    const VkBufferCreateInfo prime_buffer_info = {
443       .sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
444       .pNext = &prime_buffer_external_info,
445       .size = linear_size,
446       .usage = VK_BUFFER_USAGE_TRANSFER_DST_BIT,
447       .sharingMode = VK_SHARING_MODE_EXCLUSIVE,
448    };
449    result = wsi->CreateBuffer(chain->device, &prime_buffer_info,
450                               &chain->alloc, &image->prime.buffer);
451    if (result != VK_SUCCESS)
452       goto fail;
453 
454    VkMemoryRequirements reqs;
455    wsi->GetBufferMemoryRequirements(chain->device, image->prime.buffer, &reqs);
456    assert(reqs.size <= linear_size);
457 
458    const struct wsi_memory_allocate_info memory_wsi_info = {
459       .sType = VK_STRUCTURE_TYPE_WSI_MEMORY_ALLOCATE_INFO_MESA,
460       .pNext = NULL,
461       .implicit_sync = true,
462    };
463    const VkExportMemoryAllocateInfo prime_memory_export_info = {
464       .sType = VK_STRUCTURE_TYPE_EXPORT_MEMORY_ALLOCATE_INFO,
465       .pNext = &memory_wsi_info,
466       .handleTypes = VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT,
467    };
468    const VkMemoryDedicatedAllocateInfo prime_memory_dedicated_info = {
469       .sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO,
470       .pNext = &prime_memory_export_info,
471       .image = VK_NULL_HANDLE,
472       .buffer = image->prime.buffer,
473    };
474    const VkMemoryAllocateInfo prime_memory_info = {
475       .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
476       .pNext = &prime_memory_dedicated_info,
477       .allocationSize = linear_size,
478       .memoryTypeIndex = select_memory_type(wsi, 0, reqs.memoryTypeBits),
479    };
480    result = wsi->AllocateMemory(chain->device, &prime_memory_info,
481                                 &chain->alloc, &image->prime.memory);
482    if (result != VK_SUCCESS)
483       goto fail;
484 
485    result = wsi->BindBufferMemory(chain->device, image->prime.buffer,
486                                   image->prime.memory, 0);
487    if (result != VK_SUCCESS)
488       goto fail;
489 
490    const VkImageCreateInfo image_info = {
491       .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
492       .pNext = NULL,
493       .flags = 0,
494       .imageType = VK_IMAGE_TYPE_2D,
495       .format = pCreateInfo->imageFormat,
496       .extent = {
497          .width = pCreateInfo->imageExtent.width,
498          .height = pCreateInfo->imageExtent.height,
499          .depth = 1,
500       },
501       .mipLevels = 1,
502       .arrayLayers = 1,
503       .samples = VK_SAMPLE_COUNT_1_BIT,
504       .tiling = VK_IMAGE_TILING_OPTIMAL,
505       .usage = pCreateInfo->imageUsage | VK_IMAGE_USAGE_TRANSFER_SRC_BIT,
506       .sharingMode = pCreateInfo->imageSharingMode,
507       .queueFamilyIndexCount = pCreateInfo->queueFamilyIndexCount,
508       .pQueueFamilyIndices = pCreateInfo->pQueueFamilyIndices,
509       .initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
510    };
511    result = wsi->CreateImage(chain->device, &image_info,
512                              &chain->alloc, &image->image);
513    if (result != VK_SUCCESS)
514       goto fail;
515 
516    wsi->GetImageMemoryRequirements(chain->device, image->image, &reqs);
517 
518    const VkMemoryDedicatedAllocateInfo memory_dedicated_info = {
519       .sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO,
520       .pNext = NULL,
521       .image = image->image,
522       .buffer = VK_NULL_HANDLE,
523    };
524    const VkMemoryAllocateInfo memory_info = {
525       .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
526       .pNext = &memory_dedicated_info,
527       .allocationSize = reqs.size,
528       .memoryTypeIndex = select_memory_type(wsi, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
529                                             reqs.memoryTypeBits),
530    };
531    result = wsi->AllocateMemory(chain->device, &memory_info,
532                                 &chain->alloc, &image->memory);
533    if (result != VK_SUCCESS)
534       goto fail;
535 
536    result = wsi->BindImageMemory(chain->device, image->image,
537                                  image->memory, 0);
538    if (result != VK_SUCCESS)
539       goto fail;
540 
541    image->prime.blit_cmd_buffers =
542       vk_zalloc(&chain->alloc,
543                 sizeof(VkCommandBuffer) * wsi->queue_family_count, 8,
544                 VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
545    if (!image->prime.blit_cmd_buffers) {
546       result = VK_ERROR_OUT_OF_HOST_MEMORY;
547       goto fail;
548    }
549 
550    for (uint32_t i = 0; i < wsi->queue_family_count; i++) {
551       const VkCommandBufferAllocateInfo cmd_buffer_info = {
552          .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO,
553          .pNext = NULL,
554          .commandPool = chain->cmd_pools[i],
555          .level = VK_COMMAND_BUFFER_LEVEL_PRIMARY,
556          .commandBufferCount = 1,
557       };
558       result = wsi->AllocateCommandBuffers(chain->device, &cmd_buffer_info,
559                                            &image->prime.blit_cmd_buffers[i]);
560       if (result != VK_SUCCESS)
561          goto fail;
562 
563       const VkCommandBufferBeginInfo begin_info = {
564          .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
565       };
566       wsi->BeginCommandBuffer(image->prime.blit_cmd_buffers[i], &begin_info);
567 
568       struct VkBufferImageCopy buffer_image_copy = {
569          .bufferOffset = 0,
570          .bufferRowLength = linear_stride / cpp,
571          .bufferImageHeight = 0,
572          .imageSubresource = {
573             .aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
574             .mipLevel = 0,
575             .baseArrayLayer = 0,
576             .layerCount = 1,
577          },
578          .imageOffset = { .x = 0, .y = 0, .z = 0 },
579          .imageExtent = {
580             .width = pCreateInfo->imageExtent.width,
581             .height = pCreateInfo->imageExtent.height,
582             .depth = 1,
583          },
584       };
585       wsi->CmdCopyImageToBuffer(image->prime.blit_cmd_buffers[i],
586                                 image->image,
587                                 VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
588                                 image->prime.buffer,
589                                 1, &buffer_image_copy);
590 
591       result = wsi->EndCommandBuffer(image->prime.blit_cmd_buffers[i]);
592       if (result != VK_SUCCESS)
593          goto fail;
594    }
595 
596    const VkMemoryGetFdInfoKHR linear_memory_get_fd_info = {
597       .sType = VK_STRUCTURE_TYPE_MEMORY_GET_FD_INFO_KHR,
598       .pNext = NULL,
599       .memory = image->prime.memory,
600       .handleType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT,
601    };
602    int fd;
603    result = wsi->GetMemoryFdKHR(chain->device, &linear_memory_get_fd_info, &fd);
604    if (result != VK_SUCCESS)
605       goto fail;
606 
607    image->drm_modifier = use_modifier ? DRM_FORMAT_MOD_LINEAR : DRM_FORMAT_MOD_INVALID;
608    image->num_planes = 1;
609    image->sizes[0] = linear_size;
610    image->row_pitches[0] = linear_stride;
611    image->offsets[0] = 0;
612    image->fds[0] = fd;
613 
614    return VK_SUCCESS;
615 
616 fail:
617    wsi_destroy_image(chain, image);
618 
619    return result;
620 }
621 
622