[Mesa-dev] [PATCH] radv: Implement VK_KHR_external_memory

Jason Ekstrand jason at jlekstrand.net
Fri Jul 14 18:13:08 UTC 2017


This effectively reverts commit 43a171878bb4b5aedb36a.  Technically,
VK_KHR_get_memory_requirements2 and VK_KHR_dedicated_allocation are
required for the KHR version but this at least restores the removed
functionality.  This patch builds but has received zero testing.

Cc: Dave Airlie <airlied at redhat.com>
---
 src/amd/vulkan/radv_device.c           |  70 ++++++++++++++++++++-
 src/amd/vulkan/radv_entrypoints_gen.py |   3 +
 src/amd/vulkan/radv_formats.c          | 112 +++++++++++++++++++++++++++++++++
 src/amd/vulkan/radv_image.c            |   7 ++-
 4 files changed, 190 insertions(+), 2 deletions(-)

diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index 3b3a368..92be461 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -98,6 +98,10 @@ static const VkExtensionProperties instance_extensions[] = {
 		.extensionName = VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME,
 		.specVersion = 1,
 	},
+	{
+		.extensionName = VK_KHR_EXTERNAL_MEMORY_CAPABILITIES_EXTENSION_NAME,
+		.specVersion = 1,
+	},
 };
 
 static const VkExtensionProperties common_device_extensions[] = {
@@ -137,6 +141,14 @@ static const VkExtensionProperties common_device_extensions[] = {
 		.extensionName = VK_NV_DEDICATED_ALLOCATION_EXTENSION_NAME,
 		.specVersion = 1,
 	},
+	{
+		.extensionName = VK_KHR_EXTERNAL_MEMORY_EXTENSION_NAME,
+		.specVersion = 1,
+	},
+	{
+		.extensionName = VK_KHR_EXTERNAL_MEMORY_FD_EXTENSION_NAME,
+		.specVersion = 1,
+	},
 };
 
 static VkResult
@@ -723,6 +735,7 @@ void radv_GetPhysicalDeviceProperties2KHR(
 	VkPhysicalDevice                            physicalDevice,
 	VkPhysicalDeviceProperties2KHR             *pProperties)
 {
+	RADV_FROM_HANDLE(radv_physical_device, pdevice, physicalDevice);
 	radv_GetPhysicalDeviceProperties(physicalDevice, &pProperties->properties);
 
 	vk_foreach_struct(ext, pProperties->pNext) {
@@ -733,6 +746,13 @@ void radv_GetPhysicalDeviceProperties2KHR(
 			properties->maxPushDescriptors = MAX_PUSH_DESCRIPTORS;
 			break;
 		}
+		case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ID_PROPERTIES_KHR: {
+			VkPhysicalDeviceIDPropertiesKHR *properties = (VkPhysicalDeviceIDPropertiesKHR*)ext;
+			radv_device_get_cache_uuid(0, properties->driverUUID);
+			memcpy(properties->deviceUUID, pdevice->device_uuid, VK_UUID_SIZE);
+			properties->deviceLUIDValid = false;
+			break;
+		}
 		default:
 			break;
 		}
@@ -2068,6 +2088,9 @@ VkResult radv_AllocateMemory(
 		*pMem = VK_NULL_HANDLE;
 		return VK_SUCCESS;
 	}
+
+	const VkImportMemoryFdInfoKHR *import_info =
+		vk_find_struct_const(pAllocateInfo->pNext, IMPORT_MEMORY_FD_INFO_KHR);
 	const VkDedicatedAllocationMemoryAllocateInfoNV *dedicate_info =
 		vk_find_struct_const(pAllocateInfo->pNext, DEDICATED_ALLOCATION_MEMORY_ALLOCATE_INFO_NV);
 
@@ -2084,6 +2107,18 @@ VkResult radv_AllocateMemory(
 		mem->buffer = NULL;
 	}
 
+	if (import_info) {
+		assert(import_info->handleType ==
+		       VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHR);
+		mem->bo = device->ws->buffer_from_fd(device->ws, import_info->fd,
+						     NULL, NULL);
+		if (!mem->bo) {
+			result = VK_ERROR_INVALID_EXTERNAL_HANDLE_KHR;
+			goto fail;
+		} else
+			goto out_success;
+	}
+
 	uint64_t alloc_size = align_u64(pAllocateInfo->allocationSize, 4096);
 	if (pAllocateInfo->memoryTypeIndex == RADV_MEM_TYPE_GTT_WRITE_COMBINE ||
 	    pAllocateInfo->memoryTypeIndex == RADV_MEM_TYPE_GTT_CACHED)
@@ -2107,7 +2142,7 @@ VkResult radv_AllocateMemory(
 		goto fail;
 	}
 	mem->type_index = pAllocateInfo->memoryTypeIndex;
-
+out_success:
 	*pMem = radv_device_memory_to_handle(mem);
 
 	return VK_SUCCESS;
@@ -3255,3 +3290,36 @@ vk_icdNegotiateLoaderICDInterfaceVersion(uint32_t *pSupportedVersion)
 	*pSupportedVersion = MIN2(*pSupportedVersion, 3u);
 	return VK_SUCCESS;
 }
+
+VkResult radv_GetMemoryFdKHR(VkDevice _device,
+			     const VkMemoryGetFdInfoKHR *pGetFdInfo,
+			     int *pFD)
+{
+	RADV_FROM_HANDLE(radv_device, device, _device);
+	RADV_FROM_HANDLE(radv_device_memory, memory, pGetFdInfo->memory);
+
+	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);
+
+	bool ret = radv_get_memory_fd(device, memory, pFD);
+	if (ret == false)
+		return VK_ERROR_OUT_OF_DEVICE_MEMORY;
+	return VK_SUCCESS;
+}
+
+VkResult radv_GetMemoryFdPropertiesKHR(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;
+}
diff --git a/src/amd/vulkan/radv_entrypoints_gen.py b/src/amd/vulkan/radv_entrypoints_gen.py
index 3474c78..bc46886 100644
--- a/src/amd/vulkan/radv_entrypoints_gen.py
+++ b/src/amd/vulkan/radv_entrypoints_gen.py
@@ -42,6 +42,9 @@ supported_extensions = [
    'VK_KHR_wayland_surface',
    'VK_KHR_xcb_surface',
    'VK_KHR_xlib_surface',
+   'VK_KHR_external_memory_capabilities',
+   'VK_KHR_external_memory',
+   'VK_KHR_external_memory_fd',
 ]
 
 # We generate a static hash table for entry point lookup
diff --git a/src/amd/vulkan/radv_formats.c b/src/amd/vulkan/radv_formats.c
index b740a1a..4d0aca1 100644
--- a/src/amd/vulkan/radv_formats.c
+++ b/src/amd/vulkan/radv_formats.c
@@ -1142,12 +1142,37 @@ VkResult radv_GetPhysicalDeviceImageFormatProperties(
 						pImageFormatProperties);
 }
 
+static void
+get_external_image_format_properties(const VkPhysicalDeviceImageFormatInfo2KHR *pImageFormatInfo,
+				     VkExternalMemoryPropertiesKHR *external_properties)
+{
+	VkExternalMemoryFeatureFlagBitsKHR flags = 0;
+	VkExternalMemoryHandleTypeFlagsKHR export_flags = 0;
+	VkExternalMemoryHandleTypeFlagsKHR compat_flags = 0;
+	switch (pImageFormatInfo->type) {
+	case VK_IMAGE_TYPE_2D:
+		flags = VK_EXTERNAL_MEMORY_FEATURE_DEDICATED_ONLY_BIT_KHR|VK_EXTERNAL_MEMORY_FEATURE_EXPORTABLE_BIT_KHR|VK_EXTERNAL_MEMORY_FEATURE_IMPORTABLE_BIT_KHR;
+		compat_flags = export_flags = VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHR;
+		break;
+	default:
+		break;
+	}
+
+	*external_properties = (VkExternalMemoryPropertiesKHR) {
+		.externalMemoryFeatures = flags,
+		.exportFromImportedHandleTypes = export_flags,
+		.compatibleHandleTypes = compat_flags,
+	};
+}
+
 VkResult radv_GetPhysicalDeviceImageFormatProperties2KHR(
 	VkPhysicalDevice                            physicalDevice,
 	const VkPhysicalDeviceImageFormatInfo2KHR  *base_info,
 	VkImageFormatProperties2KHR                *base_props)
 {
 	RADV_FROM_HANDLE(radv_physical_device, physical_device, physicalDevice);
+	const VkPhysicalDeviceExternalImageFormatInfoKHR *external_info = NULL;
+	VkExternalImageFormatPropertiesKHR *external_props = NULL;
 	VkResult result;
 
 	result = radv_get_image_format_properties(physical_device, base_info,
@@ -1155,7 +1180,69 @@ VkResult radv_GetPhysicalDeviceImageFormatProperties2KHR(
 	if (result != VK_SUCCESS)
 		return result;
 
+	   /* Extract input structs */
+	vk_foreach_struct_const(s, base_info->pNext) {
+		switch (s->sType) {
+		case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_IMAGE_FORMAT_INFO_KHR:
+			external_info = (const void *) s;
+			break;
+		default:
+			break;
+		}
+	}
+
+	/* Extract output structs */
+	vk_foreach_struct(s, base_props->pNext) {
+		switch (s->sType) {
+		case VK_STRUCTURE_TYPE_EXTERNAL_IMAGE_FORMAT_PROPERTIES_KHR:
+			external_props = (void *) s;
+			break;
+		default:
+			break;
+		}
+	}
+
+	/* From the Vulkan 1.0.42 spec:
+	 *
+	 *    If handleType is 0, vkGetPhysicalDeviceImageFormatProperties2KHR will
+	 *    behave as if VkPhysicalDeviceExternalImageFormatInfoKHR was not
+	 *    present and VkExternalImageFormatPropertiesKHR will be ignored.
+	 */
+	if (external_info && external_info->handleType != 0) {
+		switch (external_info->handleType) {
+		case VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHR:
+			get_external_image_format_properties(base_info, &external_props->externalMemoryProperties);
+			break;
+		default:
+			/* From the Vulkan 1.0.42 spec:
+			 *
+			 *    If handleType is not compatible with the [parameters] specified
+			 *    in VkPhysicalDeviceImageFormatInfo2KHR, then
+			 *    vkGetPhysicalDeviceImageFormatProperties2KHR returns
+			 *    VK_ERROR_FORMAT_NOT_SUPPORTED.
+			 */
+			result = vk_errorf(VK_ERROR_FORMAT_NOT_SUPPORTED,
+					   "unsupported VkExternalMemoryTypeFlagBitsKHR 0x%x",
+					   external_info->handleType);
+			goto fail;
+		}
+	}
+
 	return VK_SUCCESS;
+
+fail:
+	if (result == VK_ERROR_FORMAT_NOT_SUPPORTED) {
+		/* From the Vulkan 1.0.42 spec:
+		 *
+		 *    If the combination of parameters to
+		 *    vkGetPhysicalDeviceImageFormatProperties2KHR is not supported by
+		 *    the implementation for use in vkCreateImage, then all members of
+		 *    imageFormatProperties will be filled with zero.
+		 */
+		base_props->imageFormatProperties = (VkImageFormatProperties) {0};
+	}
+
+	return result;
 }
 
 void radv_GetPhysicalDeviceSparseImageFormatProperties(
@@ -1181,3 +1268,28 @@ void radv_GetPhysicalDeviceSparseImageFormatProperties2KHR(
 	/* Sparse images are not yet supported. */
 	*pPropertyCount = 0;
 }
+
+void radv_GetPhysicalDeviceExternalBufferPropertiesKHR(
+	VkPhysicalDevice                            physicalDevice,
+	const VkPhysicalDeviceExternalBufferInfoKHR *pExternalBufferInfo,
+	VkExternalBufferPropertiesKHR               *pExternalBufferProperties)
+{
+	VkExternalMemoryFeatureFlagBitsKHR flags = 0;
+	VkExternalMemoryHandleTypeFlagsKHR export_flags = 0;
+	VkExternalMemoryHandleTypeFlagsKHR compat_flags = 0;
+	switch(pExternalBufferInfo->handleType) {
+	case VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHR:
+		flags = VK_EXTERNAL_MEMORY_FEATURE_DEDICATED_ONLY_BIT_KHR |
+		        VK_EXTERNAL_MEMORY_FEATURE_EXPORTABLE_BIT_KHR |
+		        VK_EXTERNAL_MEMORY_FEATURE_IMPORTABLE_BIT_KHR;
+		compat_flags = export_flags = VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT_KHR;
+		break;
+	default:
+		break;
+	}
+	pExternalBufferProperties->externalMemoryProperties = (VkExternalMemoryPropertiesKHR) {
+		.externalMemoryFeatures = flags,
+		.exportFromImportedHandleTypes = export_flags,
+		.compatibleHandleTypes = compat_flags,
+	};
+}
diff --git a/src/amd/vulkan/radv_image.c b/src/amd/vulkan/radv_image.c
index fc00d01..a77be28 100644
--- a/src/amd/vulkan/radv_image.c
+++ b/src/amd/vulkan/radv_image.c
@@ -783,7 +783,10 @@ radv_image_create(VkDevice _device,
 	image->exclusive = pCreateInfo->sharingMode == VK_SHARING_MODE_EXCLUSIVE;
 	if (pCreateInfo->sharingMode == VK_SHARING_MODE_CONCURRENT) {
 		for (uint32_t i = 0; i < pCreateInfo->queueFamilyIndexCount; ++i)
-			image->queue_family_mask |= 1u << pCreateInfo->pQueueFamilyIndices[i];
+			if (pCreateInfo->pQueueFamilyIndices[i] == VK_QUEUE_FAMILY_EXTERNAL_KHR)
+				image->queue_family_mask |= (1u << RADV_MAX_QUEUE_FAMILIES) - 1u;
+			else
+				image->queue_family_mask |= 1u << pCreateInfo->pQueueFamilyIndices[i];
 	}
 
 	radv_init_surface(device, &image->surface, create_info);
@@ -962,6 +965,8 @@ unsigned radv_image_queue_family_mask(const struct radv_image *image, uint32_t f
 {
 	if (!image->exclusive)
 		return image->queue_family_mask;
+	if (family == VK_QUEUE_FAMILY_EXTERNAL_KHR)
+		return (1u << RADV_MAX_QUEUE_FAMILIES) - 1u;
 	if (family == VK_QUEUE_FAMILY_IGNORED)
 		return 1u << queue_family;
 	return 1u << family;
-- 
2.5.0.400.gff86faf



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