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* Update release number to 98.
Public Issues:
* Fix missing markup in flink:vkDestroyPipelineLayout valid usage
statement (pull request 882).
* Add missing contributors for `<<VK_EXT_buffer_device_address>>` (public
pull request 891).
Internal Issues:
* Detect nested bullet points in valid usage blocks and warn about them
during VUID assignment (internal issue 1382).
* Update the style guide to document the process for reserving new bits in
bitmask types (internal issue 1411).
* Clarify for slink:VkApplicationInfo::pname:apiVersion and in the
<<fundamentals-validusage-versions, Valid Usage for Newer Core
Versions>> section when it is valid for an application to use a certain
version of Vulkan API functionality (for an instance and for a
device/physical device); and when the validation layers must generate an
error (internal issue 1412).
* Add optional <<memory-model-availability-visibility, transitive
availability/visibility operations to the memory model, including a new
pname:vulkanMemoryModelAvailabilityVisibilityChains feature for
slink:VkPhysicalDeviceVulkanMemoryModelFeaturesKHR (internal issue
1460).
* Add the code:StorageBuffer storage class to those in the
<<interfaces-resources-descset, Descriptor Set Interface>> (internal
issue 1480).
* Add missing `returnedonly` tags for a number of returned extension
structures that can be passed in pname:pNext chains (internal issue
1515).
* Clean up and rearrange some spec language for
slink:VkRenderPassCreateInfo and slink:VkAttachmentReference.txt
(internal issue 1522).
* Correctly round the code:OpVectorTimesScalar and
code:OpMatrixTimesScalar SPIR-V operations in the <<Precision of core
SPIR-V Instructions>> table (internal merge request 2996).
* Work around cases in flink:vkCmdBeginTransformFeedbackEXT,
flink:vkCmdEndTransformFeedbackEXT, and
slink:VkPipelineCoverageModulationStateCreateInfoNV where an array
parameter is `optional` but the length is not in `vk.xml`. This is an
interim fix using `noautovalidity` + handcoded VU replacing those that
should be autogenerated (internal issue 2944 and
https://github.com/KhronosGroup/Vulkan-ValidationLayers/issues/480).
* Remove redundant capability validation of the code:float16 and code:int8
SPIR-V capabilities from the <<spirvenv-capabilities, Capabilities>>
section, since they are already covered in the preceding table.
* Update check_spec_links script, including validation for reference page
open blocks. Fix errors identified by the script.
55 lines
1.5 KiB
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55 lines
1.5 KiB
Plaintext
Executable File
// Copyright (c) 2017-2019 Khronos Group. This work is licensed under a
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// Creative Commons Attribution 4.0 International License; see
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// http://creativecommons.org/licenses/by/4.0/
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include::meta/VK_KHR_vulkan_memory_model.txt[]
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*Last Modified Date*::
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2018-12-10
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*IP Status*::
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No known IP claims.
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*Interactions and External Dependencies*::
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- This extension requires
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https://www.khronos.org/registry/spir-v/extensions/KHR/SPV_KHR_vulkan_memory_model.html[`SPV_KHR_vulkan_memory_model`]
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*Contributors*::
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- Jeff Bolz, NVIDIA
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- Alan Baker, Google
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- Tobias Hector, AMD
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- David Neto, Google
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- Robert Simpson, Qualcomm Technologies, Inc.
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- Brian Sumner, AMD
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The `VK_KHR_vulkan_memory_model` extension allows use of the
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<<memory-model,Vulkan Memory Model>>, which formally defines how to
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synchronize memory accesses to the same memory locations performed by
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multiple shader invocations.
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=== New Enum Constants
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* Extending elink:VkStructureType:
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** ename:VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_MEMORY_MODEL_FEATURES_KHR
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=== New Structures
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* slink:VkPhysicalDeviceVulkanMemoryModelFeaturesKHR
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[NOTE]
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.Note
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====
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Version 3 of the spec added a member
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(pname:vulkanMemoryModelAvailabilityVisibilityChains) to
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slink:VkPhysicalDeviceVulkanMemoryModelFeaturesKHR, which is an incompatible
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change from version 2.
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====
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=== New SPIR-V Capabilities
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* <<spirvenv-capabilities-table-memorymodel,code:VulkanMemoryModelKHR>>
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=== Issues
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=== Version History
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* Revision 1, 2018-06-24 (Jeff Bolz)
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- Initial draft
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