VK_KHR_maintenance11

Other Extension Metadata

Last Modified Date

2025-09-09

Interactions and External Dependencies###### Contributors
  • Mike Blumenkrantz, Valve
  • Piers Daniell, NVIDIA
  • Hans-Kristian Arntzen, Valve
  • Caterina Shablia, Collabora

Description

VK_KHR_maintenance11 adds a collection of minor features, none of which would warrant an entire extension of their own.

The new features are as follows:

  • Add D3D compatibility for mismatch between Arrayed in shaders and the arrayness of the underlying descriptor when the descriptor contains a single array layer
  • Clarify the pipeline depth clipping state when the pipeline is created without VK_DYNAMIC_STATE_DEPTH_CLIP_ENABLE_EXT being set and the VkPipelineRasterizationDepthClipStateCreateInfoEXT struct is not present
  • Add VK_SHADER_CREATE_INDEPENDENT_SETS_BIT_KHR to enable shader object functionality to mimic VK_PIPELINE_LAYOUT_CREATE_INDEPENDENT_SETS_BIT_EXT used for graphics pipeline libraries, including a new pipeline layout creation flag VK_PIPELINE_LAYOUT_CREATE_NO_TASK_SHADER_BIT_KHR to ensure pipeline layouts used with shader objects also created with VK_SHADER_CREATE_NO_TASK_SHADER_BIT_EXT to be compatible
  • Allow queueFamilyIndexCount of 1 in VkBufferCreateInfo, VkImageCreateInfo, VkPhysicalDeviceImageDrmFormatModifierInfoEXT, VkTensorCreateInfoARM when sharingMode is VK_SHARING_MODE_CONCURRENT.
  • Require minImageTransferGranularity to be (1,1,1) even on transfer-only queues and add optimalImageTransferGranularity queue family property to communicate the performance bump for copies not aligned to the optimal granularity.
  • When copying between a buffer and an image on a transfer-only queue, do not require bufferOffset to be a multiple of 4.

New Structures

New Enum Constants

  • VK_KHR_MAINTENANCE_11_EXTENSION_NAME
  • VK_KHR_MAINTENANCE_11_SPEC_VERSION
  • Extending VkImageCreateFlagBits:
    • VK_IMAGE_CREATE_ALIAS_SINGLE_LAYER_DESCRIPTOR_BIT_KHR
  • Extending VkStructureType:
    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MAINTENANCE_11_FEATURES_KHR
    • VK_STRUCTURE_TYPE_QUEUE_FAMILY_OPTIMAL_IMAGE_TRANSFER_GRANULARITY_PROPERTIES_KHR

If VK_EXT_shader_object is supported:

If VK_EXT_shader_object and VK_EXT_mesh_shader or VK_NV_mesh_shader is supported:

Issues

None.

Version History

  • Revision 1, 2025-09-09 (Mike Blumenkrantz)
    • Initial revision