Name

VK_KHR_shader_atomic_int64 - device extension

VK_KHR_shader_atomic_int64

Name String

VK_KHR_shader_atomic_int64

Extension Type

Device extension

Registered Extension Number

181

Revision

1

Ratification Status

Ratified

Extension and Version Dependencies

VK_KHR_get_physical_device_properties2

Deprecation State

• Promoted to Vulkan 1.2

Contact

• Aaron Hagan @ahagan%0A*Here describe the issue or question you have about the VK_KHR_shader_atomic_int64 extension*

Other Extension Metadata

Last Modified Date

2018-07-05

Interactions and External Dependencies

• Promoted to Vulkan 1.2 Core
• This extension provides API support for GL_ARB_gpu_shader_int64 and GL_EXT_shader_atomic_int64

Contributors

• Aaron Hagan, AMD
• Daniel Rakos, AMD
• Jeff Bolz, NVIDIA
• Neil Henning, Codeplay

Description

This extension advertises the SPIR-V Int64Atomics capability for Vulkan, which allows a shader to contain 64-bit atomic operations on signed and unsigned integers. The supported operations include OpAtomicMin, OpAtomicMax, OpAtomicAnd, OpAtomicOr, OpAtomicXor, OpAtomicAdd, OpAtomicExchange, and OpAtomicCompareExchange.

Promotion to Vulkan 1.2

All functionality in this extension is included in core Vulkan 1.2, with the KHR suffix omitted. However, if Vulkan 1.2 is supported and this extension is not, the shaderBufferInt64Atomics capability is optional. The original type, enum and command names are still available as aliases of the core functionality.

New Structures

• Extending PhysicalDeviceFeatures2, DeviceCreateInfo:

  • PhysicalDeviceShaderAtomicInt64FeaturesKHR

New Enum Constants

• KHR_SHADER_ATOMIC_INT64_EXTENSION_NAME

• KHR_SHADER_ATOMIC_INT64_SPEC_VERSION

• Extending StructureType:

  • STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_ATOMIC_INT64_FEATURES_KHR

New SPIR-V Capabilities

• Int64Atomics

Version History

• Revision 1, 2018-07-05 (Aaron Hagan)

  • Internal revisions

See Also

PhysicalDeviceShaderAtomicInt64FeaturesKHR

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.