Registered Extension Number

61

Revision

4

Extension and Version Dependencies

Deprecation state

Other Extension Metadata

Last Modified Date

2017-10-10

IP Status

No known IP claims.

Interactions and External Dependencies
  • Promoted to Vulkan 1.1 Core

Contributors
  • Jeff Bolz, NVIDIA

  • Tobias Hector, Imagination Technologies

Description

This extension provides functionality to use a logical device that consists of multiple physical devices, as created with the VK_KHR_device_group_creation extension. A device group can allocate memory across the subdevices, bind memory from one subdevice to a resource on another subdevice, record command buffers where some work executes on an arbitrary subset of the subdevices, and potentially present a swapchain image from one or more subdevices.

New Object Types

None.

New Enum Constants

  • Extending VkStructureType:

    • VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_FLAGS_INFO_KHR

    • VK_STRUCTURE_TYPE_DEVICE_GROUP_RENDER_PASS_BEGIN_INFO_KHR

    • VK_STRUCTURE_TYPE_DEVICE_GROUP_COMMAND_BUFFER_BEGIN_INFO_KHR

    • VK_STRUCTURE_TYPE_DEVICE_GROUP_SUBMIT_INFO_KHR

    • VK_STRUCTURE_TYPE_DEVICE_GROUP_BIND_SPARSE_INFO_KHR

    • VK_STRUCTURE_TYPE_DEVICE_GROUP_PRESENT_CAPABILITIES_KHR

    • VK_STRUCTURE_TYPE_IMAGE_SWAPCHAIN_CREATE_INFO_KHR

    • VK_STRUCTURE_TYPE_BIND_IMAGE_MEMORY_SWAPCHAIN_INFO_KHR

    • VK_STRUCTURE_TYPE_ACQUIRE_NEXT_IMAGE_INFO_KHR

    • VK_STRUCTURE_TYPE_DEVICE_GROUP_PRESENT_INFO_KHR

    • VK_STRUCTURE_TYPE_DEVICE_GROUP_SWAPCHAIN_CREATE_INFO_KHR

    • VK_STRUCTURE_TYPE_BIND_BUFFER_MEMORY_DEVICE_GROUP_INFO_KHR

    • VK_STRUCTURE_TYPE_BIND_IMAGE_MEMORY_DEVICE_GROUP_INFO_KHR

  • Extending VkImageCreateFlagBits

    • VK_IMAGE_CREATE_SPLIT_INSTANCE_BIND_REGIONS_BIT_KHR

  • Extending VkPipelineCreateFlagBits

    • VK_PIPELINE_CREATE_VIEW_INDEX_FROM_DEVICE_INDEX_BIT_KHR

    • VK_PIPELINE_CREATE_DISPATCH_BASE_KHR

  • Extending VkDependencyFlagBits

    • VK_DEPENDENCY_DEVICE_GROUP_BIT_KHR

  • Extending VkSwapchainCreateFlagBitsKHR

    • VK_SWAPCHAIN_CREATE_SPLIT_INSTANCE_BIND_REGIONS_BIT_KHR

New Built-In Variables

New SPIR-V Capabilities

Promotion to Vulkan 1.1

The following enums, types and commands are included as interactions with VK_KHR_swapchain:

If Vulkan 1.1 and VK_KHR_swapchain are supported, these are included by VK_KHR_swapchain.

The base functionality in this extension is included in core Vulkan 1.1, with the KHR suffix omitted. The original type, enum and command names are still available as aliases of the core functionality.

Issues

None.

Examples

TODO

Version History

  • Revision 1, 2016-10-19 (Jeff Bolz)

    • Internal revisions

  • Revision 2, 2017-05-19 (Tobias Hector)

    • Removed extended memory bind functions to VK_KHR_bind_memory2, added dependency on that extension, and device-group-specific structs for those functions.

  • Revision 3, 2017-10-06 (Ian Elliott)

    • Corrected Vulkan 1.1 interactions with the WSI extensions. All Vulkan 1.1 WSI interactions are with the VK_KHR_swapchain extension.

  • Revision 4, 2017-10-10 (Jeff Bolz)

    • Rename "SFR" bits and structure members to use the phrase "split instance bind regions".

See Also

Document Notes

For more information, see the Vulkan Specification

This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.

Copyright (c) 2014-2020 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.