anv: Implement VK_EXT_external_memory_dma_buf

This is a modified version of the patch originally sent by Chad Versace.
The primary difference is that this version claims that OPQAUE_FD and
DMA_BUF are compatible handle types.

Reviewed-by: Dave Airlie <[email protected]>
Reviewed-by: Chad Versace <[email protected]>

1 files changed, 27 insertions, 15 deletions

diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index b5577ee61de..1ee54cddaf6 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -1563,11 +1563,11 @@ VkResult anv_AllocateMemory(
     * ignored.
     */
    if (fd_info && fd_info->handleType) {
-      /* At the moment, we only support the OPAQUE_FD memory type which is
-       * just a GEM buffer.
-       */
+      /* At the moment, we support only the below handle types. */
       assert(fd_info->handleType ==
-             VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHR);
+               VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHR ||
+             fd_info->handleType ==
+               VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT);
 
       result = anv_bo_cache_import(device, &device->bo_cache,
                                    fd_info->fd, &mem->bo);
@@ -1641,26 +1641,38 @@ VkResult anv_GetMemoryFdKHR(
 
    assert(pGetFdInfo->sType == VK_STRUCTURE_TYPE_MEMORY_GET_FD_INFO_KHR);
 
-   /* We support only one handle type. */
-   assert(pGetFdInfo->handleType ==
-          VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHR);
+   assert(pGetFdInfo->handleType == VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHR ||
+          pGetFdInfo->handleType == VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT);
 
    return anv_bo_cache_export(dev, &dev->bo_cache, mem->bo, pFd);
 }
 
 VkResult anv_GetMemoryFdPropertiesKHR(
-    VkDevice                                    device_h,
+    VkDevice                                    _device,
     VkExternalMemoryHandleTypeFlagBitsKHR       handleType,
     int                                         fd,
     VkMemoryFdPropertiesKHR*                    pMemoryFdProperties)
 {
-   /* The valid usage section for this function says:
-    *
-    *    "handleType must not be one of the handle types defined as opaque."
-    *
-    * Since we only handle opaque handles for now, there are no FD properties.
-    */
-   return VK_ERROR_INVALID_EXTERNAL_HANDLE_KHR;
+   ANV_FROM_HANDLE(anv_device, device, _device);
+   struct anv_physical_device *pdevice = &device->instance->physicalDevice;
+
+   switch (handleType) {
+   case VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHR:
+      /* dma-buf can be imported as any memory type */
+      pMemoryFdProperties->memoryTypeBits =
+         (1 << pdevice->memory.type_count) - 1;
+      return VK_SUCCESS;
+
+   default:
+      /* The valid usage section for this function says:
+       *
+       *    "handleType must not be one of the handle types defined as
+       *    opaque."
+       *
+       * So opaque handle types fall into the default "unsupported" case.
+       */
+      return vk_error(VK_ERROR_INVALID_EXTERNAL_HANDLE_KHR);
+   }
 }
 
 void anv_FreeMemory(