VK_KHR_shader_subgroup_rotate

Last Modified Date

2024-01-29

IP Status

No known IP claims.

Contributors

• Kévin Petit, Arm Ltd.
• Tobias Hector, AMD
• Jon Leech, Khronos
• Matthew Netsch, Qualcomm
• Jan-Harald Fredriksen, Arm Ltd.
• Graeme Leese, Broadcom
• Tom Olson, Arm Ltd.
• Spencer Fricke, LunarG Inc.

This extension adds support for the subgroup rotate instruction defined in SPV_KHR_subgroup_rotate.

New Structures

• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceShaderSubgroupRotateFeaturesKHR

New Enum Constants

• VK_KHR_SHADER_SUBGROUP_ROTATE_EXTENSION_NAME
• VK_KHR_SHADER_SUBGROUP_ROTATE_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_SUBGROUP_ROTATE_FEATURES_KHR
• Extending VkSubgroupFeatureFlagBits:
  • VK_SUBGROUP_FEATURE_ROTATE_BIT_KHR
  • VK_SUBGROUP_FEATURE_ROTATE_CLUSTERED_BIT_KHR

New SPIR-V Capabilities

• GroupNonUniformRotateKHR

Promotion to Vulkan 1.4

Functionality in this extension is included in core Vulkan 1.4 with the KHR suffix omitted. The original type, enum and command names are still available as aliases of the core functionality.

Version History

• Revision 2, 2024-01-29 (Kévin Petit)
  • Add VK_SUBGROUP_FEATURE_ROTATE_BIT_KHR and VK_SUBGROUP_FEATURE_ROTATE_CLUSTERED_BIT_KHR
• Revision 1, 2023-06-20 (Kévin Petit)
  • Initial revision