# VK_QCOM_cooperative_matrix_conversion(3) Manual Page

## Name

VK_QCOM_cooperative_matrix_conversion - device extension

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## Registered Extension Number

173

## Revision

1

## Ratification Status

Not ratified

## Extension and Version Dependencies

VK_KHR_cooperative_matrix

## SPIR-V Dependencies

- SPV_QCOM_cooperative_matrix_conversion

## Contact

- Matthew Netsch [GitHub]mnetsch

## Extension Proposal

VK_QCOM_cooperative_matrix_conversion

## Other Extension Metadata

Last Modified Date

  2026-01-28

Interactions and External Dependencies

  - This extension provides API support for `GLSL_QCOM_cooperative_matrix_conversion`

Contributors

  - Matthew Netsch, Qualcomm Technologies, Inc

  - Elina Kamenetskaya, Qualcomm Technologies, Inc

  - Alex Bourd, Qualcomm Technologies, Inc

  - Ruihao Zhang, Qualcomm Technologies, Inc

  - Wooyoung Kim, Qualcomm Technologies, Inc

## Description

This extension adds support for new SPIR-V shader instructions that allow loading and storing a cooperative matrix without needing to stage through shared memory and to allow bit casting arrays.

These instructions are defined by the `SPV_QCOM_cooperative_matrix_conversion` SPIR-V extension and can be used with the `GLSL_QCOM_cooperative_matrix_conversion` GLSL extension.

## New Structures

- Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:

  - VkPhysicalDeviceCooperativeMatrixConversionFeaturesQCOM

## New Enum Constants

- `VK_QCOM_COOPERATIVE_MATRIX_CONVERSION_EXTENSION_NAME`

- `VK_QCOM_COOPERATIVE_MATRIX_CONVERSION_SPEC_VERSION`

- Extending VkStructureType:

  - VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_COOPERATIVE_MATRIX_CONVERSION_FEATURES_QCOM

## New SPIR-V Capabilities

- CooperativeMatrixConversionQCOM

## Version History

- Revision 1, 2026-01-28 (Matthew Netsch)

  - 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 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0