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Vulkan-Docs/doc/specs/vulkan/appendices/VK_EXT_global_priority.txt

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Change log for October 13, 2017 Vulkan 1.0.63 spec update: * Bump API patch number and header version number to 63 for this update. Github Issues: * Add missing valid usage statements for ptext:maxDescriptorSets*, ptext:maxPerStageDescriptorInputAttachments, and ptext:maxPerStageResources to slink:VkPipelineLayoutCreateInfo.txt, flink:VkComputePipelineCreateInfo, and flink:VkGraphicsPipelineCreateInfo (public issue 546). * Fix typos in ftext:vkCmdDraw*AMD descriptions (public pull request 549). * Fixed flink:vkCmdWriteTimestamp so it is not unnecessarily restricted to queues supporting graphics or compute operations (public issue 558). * Improvements to valid usage generator for output `*Flags` pointer parameters and for some `void *` parameters (public pull requests 560, 562). * Document `altlen` attribute in XML schema as valid C99 syntax and tweak `vk.xml` to match (public pull request 566). * Clarify when pname:fence is signaled by flink:vkQueueSubmit in a more obvious place (public issue 577). Internal Issues: * Specify a whitelist of supported SPIR-V Storage Classes in the <<spirvenv-module-validation, Validation Rules within a Module>> appendix (internal SPIR-V issue 166). * Relax the shared semaphore wait timeout requirement in the <<synchronization-semaphores-importing, Importing Semaphore Payloads>> section (internal issue 820). * Update the <<textures-image-level-selection, Image Level(s) Selection>> equations so that the parameters returned by the level-of-detail query appear explicitly, also fixing the issue that linear filtering would select a level below the base level for magnification (internal issue 926). * Disallow creation of a swapchain with zero pname:imageExtent in slink:VkSurfaceCapabilitiesKHR and slink:VkSwapchainCreateInfoKHR (internal issue 1020). Other Issues: * Clarify in <<textures-operation-validation,Image View Validation>> that the layout of subresources in an image view must have a layout that matches that written into the descriptor, and that this section is about validating image views, not images. New Extensions: * `VK_EXT_global_priority`
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include::meta/VK_EXT_global_priority.txt[]
*Last Modified Date*::
2017-10-06
*IP Status*::
No known IP claims.
*Contributors*::
- Andres Rodriguez, Valve
- Pierre-Loup Griffais, Valve
- Dan Ginsburg, Valve
- Mitch Singer, AMD
In Vulkan, users can specify device-scope queue priorities.
In some cases it may be useful to extend this concept to a system-wide
scope.
This extension provides a mechanism for caller's to set their system-wide
priority.
Change log for November 27, 2017 Vulkan 1.0.66 spec update: * Bump API patch number and header version number to 66 for this update. Github Issues: * Clarified how and when ename:VK_ERROR_TOO_MANY_OBJECTS is generated in flink:vkAllocate Memory, and remove incorrect valid usage statement about exceeding the API limit (public issue 356). * Minor clarification of the description of flink:vkUpdateDescriptorSetWithTemplateKHR::pname:descriptorUpdateTemplate (public issue 564). * Minor fixes for flink:vkCmdSetViewportWScalingNV (public pull request 588). * Fix random name markup issues (public pull request 603). * Fix code:BuiltIn decoration typo in the <<fxvertex-attrib, Vertex Attributes>> section (public pull request 606). * Fix synchronization language following the definition of flink:vkAcquireNextImageKHR (public issue 607). * Restore descriptions of several commands and structures missing from the generated spec due to a mistyped asciidoctor conditional (public issue 612). * Fix 1.0.41 changelog to refer to public issues 403/404 (public issue 618). Internal Issues: * Refactor valid usage statements with internal conditionals in `copies.txt`, `pipelines.txt`, `renderpass.txt`, and `resources.txt` so each branch of the conditional appears as a standalone statement which can contain a separate VUID. This should have no impact on the generated specs, but is necessary given the present state of the VU extractor and the validation layer code that consumes them (internal issue 1043). * Fix VkQueueGlobalPriorityEXT enum values missing _EXT suffix (internal issue 1045). * Clarified initial ownership of resources bound to shared memory objects, (internal issue 1068). * Fix duplicated valid usage ID tag for flink:vkCmdCopyImage, and make the required layouts include ename:VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIONAL in both cases (internal issue 1084). Other Issues: * Remove the noise functions from GLSL for SPIR-V for Vulkan in the `GL_KHR_vulkan_glsl.txt` extension. New Extensions: * `VK_EXT_external_memory_host` * `VK_EXT_external_memory_dma_buf` * `VK_EXT_queue_family_foreign`
2017-11-27 09:07:06 +00:00
The default queue priority is ename:VK_QUEUE_GLOBAL_PRIORITY_MEDIUM_EXT.
Change log for October 13, 2017 Vulkan 1.0.63 spec update: * Bump API patch number and header version number to 63 for this update. Github Issues: * Add missing valid usage statements for ptext:maxDescriptorSets*, ptext:maxPerStageDescriptorInputAttachments, and ptext:maxPerStageResources to slink:VkPipelineLayoutCreateInfo.txt, flink:VkComputePipelineCreateInfo, and flink:VkGraphicsPipelineCreateInfo (public issue 546). * Fix typos in ftext:vkCmdDraw*AMD descriptions (public pull request 549). * Fixed flink:vkCmdWriteTimestamp so it is not unnecessarily restricted to queues supporting graphics or compute operations (public issue 558). * Improvements to valid usage generator for output `*Flags` pointer parameters and for some `void *` parameters (public pull requests 560, 562). * Document `altlen` attribute in XML schema as valid C99 syntax and tweak `vk.xml` to match (public pull request 566). * Clarify when pname:fence is signaled by flink:vkQueueSubmit in a more obvious place (public issue 577). Internal Issues: * Specify a whitelist of supported SPIR-V Storage Classes in the <<spirvenv-module-validation, Validation Rules within a Module>> appendix (internal SPIR-V issue 166). * Relax the shared semaphore wait timeout requirement in the <<synchronization-semaphores-importing, Importing Semaphore Payloads>> section (internal issue 820). * Update the <<textures-image-level-selection, Image Level(s) Selection>> equations so that the parameters returned by the level-of-detail query appear explicitly, also fixing the issue that linear filtering would select a level below the base level for magnification (internal issue 926). * Disallow creation of a swapchain with zero pname:imageExtent in slink:VkSurfaceCapabilitiesKHR and slink:VkSwapchainCreateInfoKHR (internal issue 1020). Other Issues: * Clarify in <<textures-operation-validation,Image View Validation>> that the layout of subresources in an image view must have a layout that matches that written into the descriptor, and that this section is about validating image views, not images. New Extensions: * `VK_EXT_global_priority`
2017-10-13 02:57:47 +00:00
The driver implementation will attempt to skew hardware resource allocation
in favour of the higher-priority task.
Therefore, higher-priority work may retain similar latency and throughput
characteristics even if the system is congested with lower priority work.
The global priority level of a queue shall take predence over the
per-process queue priority
(sname:VkDeviceQueueCreateInfo::pname:pQueuePriorities).
Abuse of this feature may result in starving the rest of the system from
hardware resources.
Therefore, the driver implementation may deny requests to acquire a priority
Change log for November 27, 2017 Vulkan 1.0.66 spec update: * Bump API patch number and header version number to 66 for this update. Github Issues: * Clarified how and when ename:VK_ERROR_TOO_MANY_OBJECTS is generated in flink:vkAllocate Memory, and remove incorrect valid usage statement about exceeding the API limit (public issue 356). * Minor clarification of the description of flink:vkUpdateDescriptorSetWithTemplateKHR::pname:descriptorUpdateTemplate (public issue 564). * Minor fixes for flink:vkCmdSetViewportWScalingNV (public pull request 588). * Fix random name markup issues (public pull request 603). * Fix code:BuiltIn decoration typo in the <<fxvertex-attrib, Vertex Attributes>> section (public pull request 606). * Fix synchronization language following the definition of flink:vkAcquireNextImageKHR (public issue 607). * Restore descriptions of several commands and structures missing from the generated spec due to a mistyped asciidoctor conditional (public issue 612). * Fix 1.0.41 changelog to refer to public issues 403/404 (public issue 618). Internal Issues: * Refactor valid usage statements with internal conditionals in `copies.txt`, `pipelines.txt`, `renderpass.txt`, and `resources.txt` so each branch of the conditional appears as a standalone statement which can contain a separate VUID. This should have no impact on the generated specs, but is necessary given the present state of the VU extractor and the validation layer code that consumes them (internal issue 1043). * Fix VkQueueGlobalPriorityEXT enum values missing _EXT suffix (internal issue 1045). * Clarified initial ownership of resources bound to shared memory objects, (internal issue 1068). * Fix duplicated valid usage ID tag for flink:vkCmdCopyImage, and make the required layouts include ename:VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIONAL in both cases (internal issue 1084). Other Issues: * Remove the noise functions from GLSL for SPIR-V for Vulkan in the `GL_KHR_vulkan_glsl.txt` extension. New Extensions: * `VK_EXT_external_memory_host` * `VK_EXT_external_memory_dma_buf` * `VK_EXT_queue_family_foreign`
2017-11-27 09:07:06 +00:00
above the default priority (ename:VK_QUEUE_GLOBAL_PRIORITY_MEDIUM_EXT) if
the caller does not have sufficient privileges.
Fix random name markup - add missing `*name` and `*link` and `code` - change where wrong macro was used - swap `*name` and `*link` where appropriate - correct misspelled names - that sort of thing...
2017-11-08 23:09:27 +00:00
In this scenario ename:VK_ERROR_NOT_PERMITTED_EXT is returned.
Change log for October 13, 2017 Vulkan 1.0.63 spec update: * Bump API patch number and header version number to 63 for this update. Github Issues: * Add missing valid usage statements for ptext:maxDescriptorSets*, ptext:maxPerStageDescriptorInputAttachments, and ptext:maxPerStageResources to slink:VkPipelineLayoutCreateInfo.txt, flink:VkComputePipelineCreateInfo, and flink:VkGraphicsPipelineCreateInfo (public issue 546). * Fix typos in ftext:vkCmdDraw*AMD descriptions (public pull request 549). * Fixed flink:vkCmdWriteTimestamp so it is not unnecessarily restricted to queues supporting graphics or compute operations (public issue 558). * Improvements to valid usage generator for output `*Flags` pointer parameters and for some `void *` parameters (public pull requests 560, 562). * Document `altlen` attribute in XML schema as valid C99 syntax and tweak `vk.xml` to match (public pull request 566). * Clarify when pname:fence is signaled by flink:vkQueueSubmit in a more obvious place (public issue 577). Internal Issues: * Specify a whitelist of supported SPIR-V Storage Classes in the <<spirvenv-module-validation, Validation Rules within a Module>> appendix (internal SPIR-V issue 166). * Relax the shared semaphore wait timeout requirement in the <<synchronization-semaphores-importing, Importing Semaphore Payloads>> section (internal issue 820). * Update the <<textures-image-level-selection, Image Level(s) Selection>> equations so that the parameters returned by the level-of-detail query appear explicitly, also fixing the issue that linear filtering would select a level below the base level for magnification (internal issue 926). * Disallow creation of a swapchain with zero pname:imageExtent in slink:VkSurfaceCapabilitiesKHR and slink:VkSwapchainCreateInfoKHR (internal issue 1020). Other Issues: * Clarify in <<textures-operation-validation,Image View Validation>> that the layout of subresources in an image view must have a layout that matches that written into the descriptor, and that this section is about validating image views, not images. New Extensions: * `VK_EXT_global_priority`
2017-10-13 02:57:47 +00:00
The driver implementation may fail the queue allocation request if resources
required to complete the operation have been exhausted (either by the same
process or a different process).
Fix random name markup - add missing `*name` and `*link` and `code` - change where wrong macro was used - swap `*name` and `*link` where appropriate - correct misspelled names - that sort of thing...
2017-11-08 23:09:27 +00:00
In this scenario ename:VK_ERROR_INITIALIZATION_FAILED is returned.
Change log for October 13, 2017 Vulkan 1.0.63 spec update: * Bump API patch number and header version number to 63 for this update. Github Issues: * Add missing valid usage statements for ptext:maxDescriptorSets*, ptext:maxPerStageDescriptorInputAttachments, and ptext:maxPerStageResources to slink:VkPipelineLayoutCreateInfo.txt, flink:VkComputePipelineCreateInfo, and flink:VkGraphicsPipelineCreateInfo (public issue 546). * Fix typos in ftext:vkCmdDraw*AMD descriptions (public pull request 549). * Fixed flink:vkCmdWriteTimestamp so it is not unnecessarily restricted to queues supporting graphics or compute operations (public issue 558). * Improvements to valid usage generator for output `*Flags` pointer parameters and for some `void *` parameters (public pull requests 560, 562). * Document `altlen` attribute in XML schema as valid C99 syntax and tweak `vk.xml` to match (public pull request 566). * Clarify when pname:fence is signaled by flink:vkQueueSubmit in a more obvious place (public issue 577). Internal Issues: * Specify a whitelist of supported SPIR-V Storage Classes in the <<spirvenv-module-validation, Validation Rules within a Module>> appendix (internal SPIR-V issue 166). * Relax the shared semaphore wait timeout requirement in the <<synchronization-semaphores-importing, Importing Semaphore Payloads>> section (internal issue 820). * Update the <<textures-image-level-selection, Image Level(s) Selection>> equations so that the parameters returned by the level-of-detail query appear explicitly, also fixing the issue that linear filtering would select a level below the base level for magnification (internal issue 926). * Disallow creation of a swapchain with zero pname:imageExtent in slink:VkSurfaceCapabilitiesKHR and slink:VkSwapchainCreateInfoKHR (internal issue 1020). Other Issues: * Clarify in <<textures-operation-validation,Image View Validation>> that the layout of subresources in an image view must have a layout that matches that written into the descriptor, and that this section is about validating image views, not images. New Extensions: * `VK_EXT_global_priority`
2017-10-13 02:57:47 +00:00
=== New Object Types
None.
=== New Enum Constants
* Extending elink:VkStructureType:
Fix random name markup - add missing `*name` and `*link` and `code` - change where wrong macro was used - swap `*name` and `*link` where appropriate - correct misspelled names - that sort of thing...
2017-11-08 23:09:27 +00:00
** ename:VK_STRUCTURE_TYPE_DEVICE_QUEUE_GLOBAL_PRIORITY_CREATE_INFO_EXT
Change log for October 13, 2017 Vulkan 1.0.63 spec update: * Bump API patch number and header version number to 63 for this update. Github Issues: * Add missing valid usage statements for ptext:maxDescriptorSets*, ptext:maxPerStageDescriptorInputAttachments, and ptext:maxPerStageResources to slink:VkPipelineLayoutCreateInfo.txt, flink:VkComputePipelineCreateInfo, and flink:VkGraphicsPipelineCreateInfo (public issue 546). * Fix typos in ftext:vkCmdDraw*AMD descriptions (public pull request 549). * Fixed flink:vkCmdWriteTimestamp so it is not unnecessarily restricted to queues supporting graphics or compute operations (public issue 558). * Improvements to valid usage generator for output `*Flags` pointer parameters and for some `void *` parameters (public pull requests 560, 562). * Document `altlen` attribute in XML schema as valid C99 syntax and tweak `vk.xml` to match (public pull request 566). * Clarify when pname:fence is signaled by flink:vkQueueSubmit in a more obvious place (public issue 577). Internal Issues: * Specify a whitelist of supported SPIR-V Storage Classes in the <<spirvenv-module-validation, Validation Rules within a Module>> appendix (internal SPIR-V issue 166). * Relax the shared semaphore wait timeout requirement in the <<synchronization-semaphores-importing, Importing Semaphore Payloads>> section (internal issue 820). * Update the <<textures-image-level-selection, Image Level(s) Selection>> equations so that the parameters returned by the level-of-detail query appear explicitly, also fixing the issue that linear filtering would select a level below the base level for magnification (internal issue 926). * Disallow creation of a swapchain with zero pname:imageExtent in slink:VkSurfaceCapabilitiesKHR and slink:VkSwapchainCreateInfoKHR (internal issue 1020). Other Issues: * Clarify in <<textures-operation-validation,Image View Validation>> that the layout of subresources in an image view must have a layout that matches that written into the descriptor, and that this section is about validating image views, not images. New Extensions: * `VK_EXT_global_priority`
2017-10-13 02:57:47 +00:00
* Extending elink:VkResult:
Fix random name markup - add missing `*name` and `*link` and `code` - change where wrong macro was used - swap `*name` and `*link` where appropriate - correct misspelled names - that sort of thing...
2017-11-08 23:09:27 +00:00
** ename:VK_ERROR_NOT_PERMITTED_EXT
Change log for October 13, 2017 Vulkan 1.0.63 spec update: * Bump API patch number and header version number to 63 for this update. Github Issues: * Add missing valid usage statements for ptext:maxDescriptorSets*, ptext:maxPerStageDescriptorInputAttachments, and ptext:maxPerStageResources to slink:VkPipelineLayoutCreateInfo.txt, flink:VkComputePipelineCreateInfo, and flink:VkGraphicsPipelineCreateInfo (public issue 546). * Fix typos in ftext:vkCmdDraw*AMD descriptions (public pull request 549). * Fixed flink:vkCmdWriteTimestamp so it is not unnecessarily restricted to queues supporting graphics or compute operations (public issue 558). * Improvements to valid usage generator for output `*Flags` pointer parameters and for some `void *` parameters (public pull requests 560, 562). * Document `altlen` attribute in XML schema as valid C99 syntax and tweak `vk.xml` to match (public pull request 566). * Clarify when pname:fence is signaled by flink:vkQueueSubmit in a more obvious place (public issue 577). Internal Issues: * Specify a whitelist of supported SPIR-V Storage Classes in the <<spirvenv-module-validation, Validation Rules within a Module>> appendix (internal SPIR-V issue 166). * Relax the shared semaphore wait timeout requirement in the <<synchronization-semaphores-importing, Importing Semaphore Payloads>> section (internal issue 820). * Update the <<textures-image-level-selection, Image Level(s) Selection>> equations so that the parameters returned by the level-of-detail query appear explicitly, also fixing the issue that linear filtering would select a level below the base level for magnification (internal issue 926). * Disallow creation of a swapchain with zero pname:imageExtent in slink:VkSurfaceCapabilitiesKHR and slink:VkSwapchainCreateInfoKHR (internal issue 1020). Other Issues: * Clarify in <<textures-operation-validation,Image View Validation>> that the layout of subresources in an image view must have a layout that matches that written into the descriptor, and that this section is about validating image views, not images. New Extensions: * `VK_EXT_global_priority`
2017-10-13 02:57:47 +00:00
=== New Enums
* elink:VkQueueGlobalPriorityEXT
=== New Structures
* slink:VkDeviceQueueGlobalPriorityCreateInfoEXT
=== New Functions
None.
=== Issues
None.
=== Version History
Change log for November 27, 2017 Vulkan 1.0.66 spec update: * Bump API patch number and header version number to 66 for this update. Github Issues: * Clarified how and when ename:VK_ERROR_TOO_MANY_OBJECTS is generated in flink:vkAllocate Memory, and remove incorrect valid usage statement about exceeding the API limit (public issue 356). * Minor clarification of the description of flink:vkUpdateDescriptorSetWithTemplateKHR::pname:descriptorUpdateTemplate (public issue 564). * Minor fixes for flink:vkCmdSetViewportWScalingNV (public pull request 588). * Fix random name markup issues (public pull request 603). * Fix code:BuiltIn decoration typo in the <<fxvertex-attrib, Vertex Attributes>> section (public pull request 606). * Fix synchronization language following the definition of flink:vkAcquireNextImageKHR (public issue 607). * Restore descriptions of several commands and structures missing from the generated spec due to a mistyped asciidoctor conditional (public issue 612). * Fix 1.0.41 changelog to refer to public issues 403/404 (public issue 618). Internal Issues: * Refactor valid usage statements with internal conditionals in `copies.txt`, `pipelines.txt`, `renderpass.txt`, and `resources.txt` so each branch of the conditional appears as a standalone statement which can contain a separate VUID. This should have no impact on the generated specs, but is necessary given the present state of the VU extractor and the validation layer code that consumes them (internal issue 1043). * Fix VkQueueGlobalPriorityEXT enum values missing _EXT suffix (internal issue 1045). * Clarified initial ownership of resources bound to shared memory objects, (internal issue 1068). * Fix duplicated valid usage ID tag for flink:vkCmdCopyImage, and make the required layouts include ename:VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIONAL in both cases (internal issue 1084). Other Issues: * Remove the noise functions from GLSL for SPIR-V for Vulkan in the `GL_KHR_vulkan_glsl.txt` extension. New Extensions: * `VK_EXT_external_memory_host` * `VK_EXT_external_memory_dma_buf` * `VK_EXT_queue_family_foreign`
2017-11-27 09:07:06 +00:00
* Revision 2, 2017-11-03 (Andres Rodriguez)
- Fixed VkQueueGlobalPriorityEXT missing _EXT suffix
Change log for October 13, 2017 Vulkan 1.0.63 spec update: * Bump API patch number and header version number to 63 for this update. Github Issues: * Add missing valid usage statements for ptext:maxDescriptorSets*, ptext:maxPerStageDescriptorInputAttachments, and ptext:maxPerStageResources to slink:VkPipelineLayoutCreateInfo.txt, flink:VkComputePipelineCreateInfo, and flink:VkGraphicsPipelineCreateInfo (public issue 546). * Fix typos in ftext:vkCmdDraw*AMD descriptions (public pull request 549). * Fixed flink:vkCmdWriteTimestamp so it is not unnecessarily restricted to queues supporting graphics or compute operations (public issue 558). * Improvements to valid usage generator for output `*Flags` pointer parameters and for some `void *` parameters (public pull requests 560, 562). * Document `altlen` attribute in XML schema as valid C99 syntax and tweak `vk.xml` to match (public pull request 566). * Clarify when pname:fence is signaled by flink:vkQueueSubmit in a more obvious place (public issue 577). Internal Issues: * Specify a whitelist of supported SPIR-V Storage Classes in the <<spirvenv-module-validation, Validation Rules within a Module>> appendix (internal SPIR-V issue 166). * Relax the shared semaphore wait timeout requirement in the <<synchronization-semaphores-importing, Importing Semaphore Payloads>> section (internal issue 820). * Update the <<textures-image-level-selection, Image Level(s) Selection>> equations so that the parameters returned by the level-of-detail query appear explicitly, also fixing the issue that linear filtering would select a level below the base level for magnification (internal issue 926). * Disallow creation of a swapchain with zero pname:imageExtent in slink:VkSurfaceCapabilitiesKHR and slink:VkSwapchainCreateInfoKHR (internal issue 1020). Other Issues: * Clarify in <<textures-operation-validation,Image View Validation>> that the layout of subresources in an image view must have a layout that matches that written into the descriptor, and that this section is about validating image views, not images. New Extensions: * `VK_EXT_global_priority`
2017-10-13 02:57:47 +00:00
* Revision 1, 2017-10-06 (Andres Rodriguez)
- First version.