VK_KHR_vulkan_memory_model
Other Extension Metadata
Last Modified Date
2018-12-10
IP Status
No known IP claims.
Contributors
- Jeff Bolz, NVIDIA
- Alan Baker, Google
- Tobias Hector, AMD
- David Neto, Google
- Robert Simpson, Qualcomm Technologies, Inc.
- Brian Sumner, AMD
Description
The VK_KHR_vulkan_memory_model extension allows use of the features
guarded by the VulkanMemoryModel, VulkanMemoryModelDeviceScope,
and VulkanMemoryModelAvailabilityVisibilityChains capabilities in
shader modules.
The Vulkan Memory Model formally defines how to synchronize
memory accesses to the same memory locations performed by multiple shader
invocations.
Version 3 of the spec added a member
(vulkanMemoryModelAvailabilityVisibilityChains) to
VkPhysicalDeviceVulkanMemoryModelFeaturesKHR, which is an incompatible
change from version 2.
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
vulkanMemoryModel capability is optional.
The original type, enum, and command names are still available as aliases of
the core functionality.
New Structures
- Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
New Enum Constants
VK_KHR_VULKAN_MEMORY_MODEL_EXTENSION_NAMEVK_KHR_VULKAN_MEMORY_MODEL_SPEC_VERSION- Extending VkStructureType:
VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_MEMORY_MODEL_FEATURES_KHR
New SPIR-V Capabilities
Version History
- Revision 1, 2018-06-24 (Jeff Bolz)
- Initial draft
- Revision 3, 2018-12-10 (Jeff Bolz)
- Add vulkanMemoryModelAvailabilityVisibilityChains member to the VkPhysicalDeviceVulkanMemoryModelFeaturesKHR structure.