# VK_NV_extended_sparse_address_space(3) Manual Page

## Name

VK_NV_extended_sparse_address_space - device extension

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## Registered Extension Number

493

## Revision

1

## Ratification Status

Not ratified

## Extension and Version Dependencies

None

## Contact

- Russell Chou [GitHub]russellcnv

## 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

## See Also

No cross-references are available

## 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

Copyright 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0