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Change log for March 7, 2018 Vulkan 1.1.70 spec update: * Vulkan 1.1 initial release. Bump API patch number and header version number to 70 for this update. The patch number will be used for both Vulkan 1.1 and Vulkan 1.0 updates, and continues to increment continuously from the previous Vulkan 1.0.69 update. NOTE: We are not publishing an updated 1.0.70 specification, or 1.1 reference pages, along with 1.1.70. There are still minor issues to work out with those build targets. However, we will soon generate all three types of documents as part of the regular spec update cycle. NOTE: The GitHub KhronosGroup/Vulkan-Docs repository now maintains the current specification in the `master` branch. The `1.0` branch is out of date and will not be maintained, since we will be generating both 1.1 and 1.0 specifications from the `master` branch in the future. Github Issues: * Clarify how mapped memory ranges are flushed in flink:vkFlushMappedMemoryRanges (public issue 127). * Specify that <<synchronization-pipeline-stages, Pipeline Stages>> are a list of tasks that each command performs, rather than necessarily being discrete pieces of hardware that one task flows through. Add a "`synchronization command`" pipeline type which all synchronization command execute (it's just TOP + BOTTOM), with an explanatory note (public issue 554). Internal Issues: * Regenerate all images used in the spec in Inkscape with a consistent look-and-feel, and adjust image size attributes so they're all legible, and not too large with respect to the spec body text (internal issue 701). * Document in the <<extensions,extensions>> appendix and in the style guide that `KHX` extensions are no longer supported or used in the Vulkan 1.1 timeframe (internal issue 714). * Remove the leftover equations_temp directory after PDF build completes (internal issue 925). * Update the <<credits, Credits (Informative)>> appendix to include contributors to Vulkan 1.1, and to list them according to the API version(s) they contributed to (internal issue 987). * Add a NOTE to the introduction explaining that interfaces defined by extensions which were promoted to Vulkan 1.1 are now expressed as aliases of the Vulkan 1.1 type (internal issue 991). * Instrument spec source conditionals so spec can be built with 1.1 features, extensions promoted to 1.1, or both (internal issues 992, 998). * Modify the XML schema and tools to support explicit aliasing of types, structures, and commands, and use this to express the promotion of 1.0 extensions to 1.1 core features, by making the extension interfaces aliases of the core features they were promoted to. Mark up promoted interfaces to allow still generating 1.0 + extension specifications (internal issue 991). * Platform names, along with corresponding preprocessor symbols to enable extensions specific to those platforms, are now reserved in vk.xml using the <platform> tag. Update the registry schema and schema specification to match (internal issue 1011). * Updated the <<textures-texel-replacement, Texel Replacement>> section to clarify that reads from invalid texels for image resources result in undefined values (internal issue 1014). * Modify description of patch version so it continues to increment across minor version changes (internal issue 1033). * Clarify and unify language describing physical device-level core and extension functionality in the <<fundamentals-validusage-extensions, Valid Usage for Extensions>>, <<fundamentals-validusage-versions, Valid Usage for Newer Core Versions>>, <<initialization-functionpointers Command Function Pointers>>, <<initialization-phys-dev-extensions, Extending Physical Device From Device Extensions>> <<extended-functionality-instance-extensions-and-devices, Instance Extensions and Device Extensions>> sections and for flink:vkGetPhysicalDeviceImageFormatProperties2. This documents that instance-level functionality is tied to the loader, and independent of the ICD; physical device-level functionality is tied to the ICD, and associated with device extensions; physical devices are treated more uniformly between core and extensions; and instance and physical versions can be different (internal issue 1048). * Updated the <<commandbuffers-lifecycle, Command Buffer Lifecycle>> section to clarify the ability for pending command buffers to transition to the invalid state after submission, and add a command buffer lifecycle diagram (internal issue 1050). * Clarify that some flink:VkDescriptorUpdateTemplateCreateInfo parameters are ignored when push descriptors are not supported (internal issue 1054). * Specify that flink:vkCreateImage will return an error if the image is too large, in a NOTE in the slink:VkImageFormatProperties description (internal issue 1078). * Remove near-duplicate NOTEs about when to query function pointers dynamically in the <<initialization, Initialization>> chapter and replace by extending the NOTE in the <<fundamentals-abi, Application Binary Interface>> section (internal issue 1085). * Restore missing references to "`Sparse Resource Features`" in the flink:VkBufferCreateFlagBits description (internal issue 1086). * Tidy up definitions of descriptor types in the `GL_KHR_vulkan_glsl` specification, the <<descriptorsets, Resource Descriptors>> section and its subsections, and the <<interfaces-resources-descset, Descriptor Set Interface>> for consistency, reduction of duplicate information, and removal of GLSL correspondance/examples (internal issue 1090). * Correctly describe code:PrimitiveId as an Input for tessellation control and evaluation shaders, not an Output (internal issue 1109). * Relax the requirements on chroma offsets for nearest filtering in <<textures-implict-reconstruction, Implicit Reconstruction>> (internal issue 1116). Other Issues: * Clarify the intended relationship between specification language and certain terms defined in the Khronos Intellectual Property Rights policy. Specific changes include: ** Rewrote IP/Copyright preamble and introduction to better agree with normative language both as laid out in the introduction, and the Khronos IPR policy. ** Added notion of fully informative sections, which are now tagged with "`(Informative)`" in their titles. ** Removed non-normative uses of the phrase "`not required`" ** Clarified the distinction between terms "`optional`" and "`not required:`" as they relate to the IPR Policy, and updated specification text to use terms consistent with the intent. ** Reduced additions to RFC 2119, and ensured the specification agreed with the leaner language. ** Removed the terms "`hardware`", "`software`", "`CPU`", and "`GPU`" from normative text. ** Moved several paragraphs that should not have been normative to informative notes. ** Clarified a number of definitions in the Glossary. ** Updated the document writing guide to match new terminology changes. * Explicitly state in the <<fundamentals-objectmodel-lifetime-acquire, application memory lifetime>> language that that for objects other than descriptor sets, a slink:VkDescriptorSetLayout object used in the creation of another object (such as slink:VkPipelineLayout or slink:VkDescriptorUpdateTemplateKHR) is only in use during the creation of that object and can be safely destroyed afterwards. * Updated the <<textures-scale-factor, Scale Factor Operation>> section to use the ratio of anisotropy, rather than the integer sample rate, to perform the LOD calculation. The spec still allows use of the sample rate as the value used to calculate the LOD, but no longer requires it. * Update `vulkan_ext.c` to include all platform-related definitions from the Vulkan platform headers, following the split of the headers into platform-specific and non-platform-specific files. * Fix bogus anchor name in the <<commandbuffers, Command Buffers>> chapter which accidentally duplicated an anchor in the pipelines chapter. There were no reference to this anchor, fortunately. * Add valid usage statement for slink:VkWriteDescriptorSet and slink:VkCopyDescriptorSet requiring that the slink:VkDescriptorSetLayout used to allocate the source and destination sets must not have been destroyed at the time flink:vkUpdateDescriptorSets is called. * Document mapping of subgroup barrier functions to SPIR-V, and clarify a place where subgroupBarrier sounds like it's execution-only in the standalone `GL_KHR_shader_subgroup` specification. * Use an HTML stylesheet derived from the Asciidoctor `colony` theme, with the default Arial font family replaced by the sans-serif Noto font family. * Numerous minor updates to README.adoc, build scripts, Makefiles, and registry and style guide specifications to support Vulkan 1.1 outputs, use them as defaults, and remove mention of `KHX` extensions, which are no longer supported. New Extensions: * `VK_EXT_vertex_attrib_divisor`
2018-03-07 12:18:52 +00:00
// Copyright (c) 2016-2018 Khronos Group. This work is licensed under a
// Creative Commons Attribution 4.0 International License; see
// http://creativecommons.org/licenses/by/4.0/
include::meta/VK_KHR_device_group.txt[]
*Last Modified Date*::
2017-10-06
*IP Status*::
No known IP claims.
*Interactions and External Dependencies*::
- Promoted to Vulkan 1.1 Core
*Contributors*::
- Jeff Bolz, NVIDIA
- Tobias Hector, Imagination Technologies
This extension provides functionality to use a logical device that consists
of multiple physical devices, as created with the
`<<VK_KHR_device_group_creation>>` extension.
A device group can allocate memory across the subdevices, bind memory from
one subdevice to a resource on another subdevice, record command buffers
where some work executes on an arbitrary subset of the subdevices, and
potentially present a swapchain image from one or more subdevices.
=== New Object Types
None.
=== New Enum Constants
* Extending elink:VkStructureType:
** ename:VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_FLAGS_INFO_KHR
** ename:VK_STRUCTURE_TYPE_DEVICE_GROUP_RENDER_PASS_BEGIN_INFO_KHR
** ename:VK_STRUCTURE_TYPE_DEVICE_GROUP_COMMAND_BUFFER_BEGIN_INFO_KHR
** ename:VK_STRUCTURE_TYPE_DEVICE_GROUP_SUBMIT_INFO_KHR
** ename:VK_STRUCTURE_TYPE_DEVICE_GROUP_BIND_SPARSE_INFO_KHR
ifdef::VK_KHR_swapchain[]
** ename:VK_STRUCTURE_TYPE_DEVICE_GROUP_PRESENT_CAPABILITIES_KHR
** ename:VK_STRUCTURE_TYPE_IMAGE_SWAPCHAIN_CREATE_INFO_KHR
** ename:VK_STRUCTURE_TYPE_BIND_IMAGE_MEMORY_SWAPCHAIN_INFO_KHR
** ename:VK_STRUCTURE_TYPE_ACQUIRE_NEXT_IMAGE_INFO_KHR
** ename:VK_STRUCTURE_TYPE_DEVICE_GROUP_PRESENT_INFO_KHR
** ename:VK_STRUCTURE_TYPE_DEVICE_GROUP_SWAPCHAIN_CREATE_INFO_KHR
endif::VK_KHR_swapchain[]
** ename:VK_STRUCTURE_TYPE_BIND_BUFFER_MEMORY_DEVICE_GROUP_INFO_KHR
** ename:VK_STRUCTURE_TYPE_BIND_IMAGE_MEMORY_DEVICE_GROUP_INFO_KHR
* Extending elink:VkImageCreateFlagBits
** ename:VK_IMAGE_CREATE_SPLIT_INSTANCE_BIND_REGIONS_BIT_KHR
* Extending elink:VkPipelineCreateFlagBits
** ename:VK_PIPELINE_CREATE_VIEW_INDEX_FROM_DEVICE_INDEX_BIT_KHR
** ename:VK_PIPELINE_CREATE_DISPATCH_BASE_KHR
* Extending elink:VkDependencyFlagBits
** ename:VK_DEPENDENCY_DEVICE_GROUP_BIT_KHR
ifdef::VK_KHR_swapchain[]
* Extending elink:VkSwapchainCreateFlagBitsKHR
** ename:VK_SWAPCHAIN_CREATE_SPLIT_INSTANCE_BIND_REGIONS_BIT_KHR
endif::VK_KHR_swapchain[]
=== New Enums
* elink:VkPeerMemoryFeatureFlagBitsKHR
* elink:VkMemoryAllocateFlagBitsKHR
ifdef::VK_KHR_swapchain[]
* elink:VkDeviceGroupPresentModeFlagBitsKHR
endif::VK_KHR_swapchain[]
=== New Structures
* slink:VkMemoryAllocateFlagsInfoKHR
* slink:VkDeviceGroupRenderPassBeginInfoKHR
* slink:VkDeviceGroupCommandBufferBeginInfoKHR
* slink:VkDeviceGroupSubmitInfoKHR
* slink:VkDeviceGroupBindSparseInfoKHR
* slink:VkBindBufferMemoryDeviceGroupInfoKHR
* slink:VkBindImageMemoryDeviceGroupInfoKHR
ifdef::VK_KHR_swapchain[]
* slink:VkDeviceGroupPresentCapabilitiesKHR
* slink:VkImageSwapchainCreateInfoKHR
* slink:VkBindImageMemorySwapchainInfoKHR
* slink:VkAcquireNextImageInfoKHR
* slink:VkDeviceGroupPresentInfoKHR
* slink:VkDeviceGroupSwapchainCreateInfoKHR
endif::VK_KHR_swapchain[]
=== New Functions
* flink:vkGetDeviceGroupPeerMemoryFeaturesKHR
* flink:vkCmdSetDeviceMaskKHR
* flink:vkCmdDispatchBaseKHR
ifdef::VK_KHR_swapchain[]
* flink:vkGetDeviceGroupPresentCapabilitiesKHR
* flink:vkGetDeviceGroupSurfacePresentModesKHR
* flink:vkGetPhysicalDevicePresentRectanglesKHR
* flink:vkAcquireNextImage2KHR
endif::VK_KHR_swapchain[]
=== New Built-In Variables
* <<interfaces-builtin-variables-deviceindex,code:DeviceIndex>>
=== New SPIR-V Capabilities
* <<spirvenv-capabilities,code:DeviceGroup>>
=== Promotion to Vulkan 1.1
ifdef::VK_KHR_swapchain[]
The following enums, types and commands are included as interactions with
`<<VK_KHR_swapchain>>`:
* ename:VK_STRUCTURE_TYPE_DEVICE_GROUP_PRESENT_CAPABILITIES_KHR
* ename:VK_STRUCTURE_TYPE_IMAGE_SWAPCHAIN_CREATE_INFO_KHR
* ename:VK_STRUCTURE_TYPE_BIND_IMAGE_MEMORY_SWAPCHAIN_INFO_KHR
* ename:VK_STRUCTURE_TYPE_ACQUIRE_NEXT_IMAGE_INFO_KHR
* ename:VK_STRUCTURE_TYPE_DEVICE_GROUP_PRESENT_INFO_KHR
* ename:VK_STRUCTURE_TYPE_DEVICE_GROUP_SWAPCHAIN_CREATE_INFO_KHR
* ename:VK_SWAPCHAIN_CREATE_SPLIT_INSTANCE_BIND_REGIONS_BIT_KHR
* elink:VkDeviceGroupPresentModeFlagBitsKHR
* slink:VkDeviceGroupPresentCapabilitiesKHR
* slink:VkImageSwapchainCreateInfoKHR
* slink:VkBindImageMemorySwapchainInfoKHR
* slink:VkAcquireNextImageInfoKHR
* slink:VkDeviceGroupPresentInfoKHR
* slink:VkDeviceGroupSwapchainCreateInfoKHR
* flink:vkGetDeviceGroupPresentCapabilitiesKHR
* flink:vkGetDeviceGroupSurfacePresentModesKHR
* flink:vkGetPhysicalDevicePresentRectanglesKHR
* flink:vkAcquireNextImage2KHR
If Vulkan 1.1 and VK_KHR_swapchain are supported, these are included by
VK_KHR_swapchain.
endif::VK_KHR_swapchain[]
The base functionality in this extension is included in core Vulkan 1.1,
with the KHR suffix omitted.
The original type, enum and command names are still available as aliases of
the core functionality.
=== Issues
None.
=== Examples
TODO
=== Version History
* Revision 1, 2016-10-19 (Jeff Bolz)
- Internal revisions
* Revision 2, 2017-05-19 (Tobias Hector)
- Removed extended memory bind functions to VK_KHR_bind_memory2, added
dependency on that extension, and device-group-specific structs for
those functions.
* Revision 3, 2017-10-06 (Ian Elliott)
- Corrected Vulkan 1.1 interactions with the WSI extensions.
All Vulkan 1.1 WSI interactions are with the VK_KHR_swapchain
extension.
* Revision 4, 2017-10-10 (Jeff Bolz)
- Rename "SFR" bits and structure members to use the phrase "split
instance bind regions".