VK_NV_extended_sparse_address_space

Other Extension Metadata

Last Modified Date

2023-10-03

Contributors

• Russell Chou, NVIDIA
• Christoph Kubisch, NVIDIA
• Eric Werness, NVIDIA
• Jeff Bolz, NVIDIA

Description

Implementations may be able to support an extended address space for sparse memory resources, but only for a certain set of usages.

This extension adds a query for the extended limit, and the supported usages that are allowed for that limit. This limit is an increase to VkPhysicalDeviceLimits::sparseAddressSpaceSize when the VkImage or VkBuffer uses only usages that are supported.

New Structures

• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceExtendedSparseAddressSpaceFeaturesNV
• Extending VkPhysicalDeviceProperties2:
  • VkPhysicalDeviceExtendedSparseAddressSpacePropertiesNV

New Enum Constants

• VK_NV_EXTENDED_SPARSE_ADDRESS_SPACE_EXTENSION_NAME
• VK_NV_EXTENDED_SPARSE_ADDRESS_SPACE_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTENDED_SPARSE_ADDRESS_SPACE_FEATURES_NV
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTENDED_SPARSE_ADDRESS_SPACE_PROPERTIES_NV

Version History

• Revision 1, 2023-10-03 (Russell Chou)
  • Initial draft