{-# language CPP #-} -- | = Name -- -- VK_EXT_subgroup_size_control - device extension -- -- == VK_EXT_subgroup_size_control -- -- [__Name String__] -- @VK_EXT_subgroup_size_control@ -- -- [__Extension Type__] -- Device extension -- -- [__Registered Extension Number__] -- 226 -- -- [__Revision__] -- 2 -- -- [__Extension and Version Dependencies__] -- -- - Requires Vulkan 1.1 -- -- [__Deprecation state__] -- -- - /Promoted/ to -- -- -- [__Contact__] -- -- - Neil Henning -- > > -- -- == Other Extension Metadata -- -- [__Last Modified Date__] -- 2019-03-05 -- -- [__Interactions and External Dependencies__] -- -- - Promoted to Vulkan 1.3 Core -- -- [__Contributors__] -- -- - Jeff Bolz, NVIDIA -- -- - Jason Ekstrand, Intel -- -- - Sławek Grajewski, Intel -- -- - Jesse Hall, Google -- -- - Neil Henning, AMD -- -- - Daniel Koch, NVIDIA -- -- - Jeff Leger, Qualcomm -- -- - Graeme Leese, Broadcom -- -- - Allan MacKinnon, Google -- -- - Mariusz Merecki, Intel -- -- - Graham Wihlidal, Electronic Arts -- -- == Description -- -- This extension enables an implementation to control the subgroup size by -- allowing a varying subgroup size and also specifying a required subgroup -- size. -- -- It extends the subgroup support in Vulkan 1.1 to allow an implementation -- to expose a varying subgroup size. Previously Vulkan exposed a single -- subgroup size per physical device, with the expectation that -- implementations will behave as if all subgroups have the same size. Some -- implementations /may/ dispatch shaders with a varying subgroup size for -- different subgroups. As a result they could implicitly split a large -- subgroup into smaller subgroups or represent a small subgroup as a -- larger subgroup, some of whose invocations were inactive on launch. -- -- To aid developers in understanding the performance characteristics of -- their programs, this extension exposes a minimum and maximum subgroup -- size that a physical device supports and a pipeline create flag to -- enable that pipeline to vary its subgroup size. If enabled, any -- @SubgroupSize@ decorated variables in the SPIR-V shader modules provided -- to pipeline creation /may/ vary between the -- -- and -- -- subgroup sizes. -- -- An implementation is also optionally allowed to support specifying a -- required subgroup size for a given pipeline stage. Implementations -- advertise which -- , -- and any pipeline of a supported stage can be passed a -- 'PipelineShaderStageRequiredSubgroupSizeCreateInfoEXT' structure to set -- the subgroup size for that shader stage of the pipeline. For compute -- shaders, this requires the developer to query the -- -- and ensure that: -- -- \[s = { WorkGroupSize.x \times WorkGroupSize.y \times WorkgroupSize.z \leq SubgroupSize \times maxComputeWorkgroupSubgroups }\] -- -- Developers can also specify a new pipeline shader stage create flag that -- requires the implementation to have fully populated subgroups within -- local workgroups. This requires the workgroup size in the X dimension to -- be a multiple of the subgroup size. -- -- == New Structures -- -- - Extending -- 'Vulkan.Core11.Promoted_From_VK_KHR_get_physical_device_properties2.PhysicalDeviceFeatures2', -- 'Vulkan.Core10.Device.DeviceCreateInfo': -- -- - 'PhysicalDeviceSubgroupSizeControlFeaturesEXT' -- -- - Extending -- 'Vulkan.Core11.Promoted_From_VK_KHR_get_physical_device_properties2.PhysicalDeviceProperties2': -- -- - 'PhysicalDeviceSubgroupSizeControlPropertiesEXT' -- -- - Extending 'Vulkan.Core10.Pipeline.PipelineShaderStageCreateInfo': -- -- - 'PipelineShaderStageRequiredSubgroupSizeCreateInfoEXT' -- -- == New Enum Constants -- -- - 'EXT_SUBGROUP_SIZE_CONTROL_EXTENSION_NAME' -- -- - 'EXT_SUBGROUP_SIZE_CONTROL_SPEC_VERSION' -- -- - Extending -- 'Vulkan.Core10.Enums.PipelineShaderStageCreateFlagBits.PipelineShaderStageCreateFlagBits': -- -- - 'PIPELINE_SHADER_STAGE_CREATE_ALLOW_VARYING_SUBGROUP_SIZE_BIT_EXT' -- -- - 'PIPELINE_SHADER_STAGE_CREATE_REQUIRE_FULL_SUBGROUPS_BIT_EXT' -- -- - Extending 'Vulkan.Core10.Enums.StructureType.StructureType': -- -- - 'STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_SIZE_CONTROL_FEATURES_EXT' -- -- - 'STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_SIZE_CONTROL_PROPERTIES_EXT' -- -- - 'STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_REQUIRED_SUBGROUP_SIZE_CREATE_INFO_EXT' -- -- == Promotion to Vulkan 1.3 -- -- Functionality in this extension is included in core Vulkan 1.3, with the -- EXT suffix omitted. The original type, enum and command names are still -- available as aliases of the core functionality. -- -- == Version History -- -- - Revision 1, 2019-03-05 (Neil Henning) -- -- - Initial draft -- -- - Revision 2, 2019-07-26 (Jason Ekstrand) -- -- - Add the missing 'PhysicalDeviceSubgroupSizeControlFeaturesEXT' -- for querying subgroup size control features. -- -- == See Also -- -- 'PhysicalDeviceSubgroupSizeControlFeaturesEXT', -- 'PhysicalDeviceSubgroupSizeControlPropertiesEXT', -- 'PipelineShaderStageRequiredSubgroupSizeCreateInfoEXT' -- -- == Document Notes -- -- For more information, see the -- -- -- This page is a generated document. Fixes and changes should be made to -- the generator scripts, not directly. module Vulkan.Extensions.VK_EXT_subgroup_size_control ( pattern STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_SIZE_CONTROL_PROPERTIES_EXT , pattern STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_REQUIRED_SUBGROUP_SIZE_CREATE_INFO_EXT , pattern STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_SIZE_CONTROL_FEATURES_EXT , pattern PIPELINE_SHADER_STAGE_CREATE_ALLOW_VARYING_SUBGROUP_SIZE_BIT_EXT , pattern PIPELINE_SHADER_STAGE_CREATE_REQUIRE_FULL_SUBGROUPS_BIT_EXT , PhysicalDeviceSubgroupSizeControlFeaturesEXT , PhysicalDeviceSubgroupSizeControlPropertiesEXT , PipelineShaderStageRequiredSubgroupSizeCreateInfoEXT , EXT_SUBGROUP_SIZE_CONTROL_SPEC_VERSION , pattern EXT_SUBGROUP_SIZE_CONTROL_SPEC_VERSION , EXT_SUBGROUP_SIZE_CONTROL_EXTENSION_NAME , pattern EXT_SUBGROUP_SIZE_CONTROL_EXTENSION_NAME ) where import Data.String (IsString) import Vulkan.Core13.Promoted_From_VK_EXT_subgroup_size_control (PhysicalDeviceSubgroupSizeControlFeatures) import Vulkan.Core13.Promoted_From_VK_EXT_subgroup_size_control (PhysicalDeviceSubgroupSizeControlProperties) import Vulkan.Core13.Promoted_From_VK_EXT_subgroup_size_control (PipelineShaderStageRequiredSubgroupSizeCreateInfo) import Vulkan.Core10.Enums.PipelineShaderStageCreateFlagBits (PipelineShaderStageCreateFlags) import Vulkan.Core10.Enums.PipelineShaderStageCreateFlagBits (PipelineShaderStageCreateFlagBits(PIPELINE_SHADER_STAGE_CREATE_ALLOW_VARYING_SUBGROUP_SIZE_BIT)) import Vulkan.Core10.Enums.PipelineShaderStageCreateFlagBits (PipelineShaderStageCreateFlags) import Vulkan.Core10.Enums.PipelineShaderStageCreateFlagBits (PipelineShaderStageCreateFlagBits(PIPELINE_SHADER_STAGE_CREATE_REQUIRE_FULL_SUBGROUPS_BIT)) import Vulkan.Core10.Enums.StructureType (StructureType(STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_SIZE_CONTROL_FEATURES)) import Vulkan.Core10.Enums.StructureType (StructureType(STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_SIZE_CONTROL_PROPERTIES)) import Vulkan.Core10.Enums.StructureType (StructureType(STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_REQUIRED_SUBGROUP_SIZE_CREATE_INFO)) -- No documentation found for TopLevel "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_SIZE_CONTROL_PROPERTIES_EXT" pattern STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_SIZE_CONTROL_PROPERTIES_EXT = STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_SIZE_CONTROL_PROPERTIES -- No documentation found for TopLevel "VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_REQUIRED_SUBGROUP_SIZE_CREATE_INFO_EXT" pattern STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_REQUIRED_SUBGROUP_SIZE_CREATE_INFO_EXT = STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_REQUIRED_SUBGROUP_SIZE_CREATE_INFO -- No documentation found for TopLevel "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_SIZE_CONTROL_FEATURES_EXT" pattern STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_SIZE_CONTROL_FEATURES_EXT = STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_SIZE_CONTROL_FEATURES -- No documentation found for TopLevel "VK_PIPELINE_SHADER_STAGE_CREATE_ALLOW_VARYING_SUBGROUP_SIZE_BIT_EXT" pattern PIPELINE_SHADER_STAGE_CREATE_ALLOW_VARYING_SUBGROUP_SIZE_BIT_EXT = PIPELINE_SHADER_STAGE_CREATE_ALLOW_VARYING_SUBGROUP_SIZE_BIT -- No documentation found for TopLevel "VK_PIPELINE_SHADER_STAGE_CREATE_REQUIRE_FULL_SUBGROUPS_BIT_EXT" pattern PIPELINE_SHADER_STAGE_CREATE_REQUIRE_FULL_SUBGROUPS_BIT_EXT = PIPELINE_SHADER_STAGE_CREATE_REQUIRE_FULL_SUBGROUPS_BIT -- No documentation found for TopLevel "VkPhysicalDeviceSubgroupSizeControlFeaturesEXT" type PhysicalDeviceSubgroupSizeControlFeaturesEXT = PhysicalDeviceSubgroupSizeControlFeatures -- No documentation found for TopLevel "VkPhysicalDeviceSubgroupSizeControlPropertiesEXT" type PhysicalDeviceSubgroupSizeControlPropertiesEXT = PhysicalDeviceSubgroupSizeControlProperties -- No documentation found for TopLevel "VkPipelineShaderStageRequiredSubgroupSizeCreateInfoEXT" type PipelineShaderStageRequiredSubgroupSizeCreateInfoEXT = PipelineShaderStageRequiredSubgroupSizeCreateInfo type EXT_SUBGROUP_SIZE_CONTROL_SPEC_VERSION = 2 -- No documentation found for TopLevel "VK_EXT_SUBGROUP_SIZE_CONTROL_SPEC_VERSION" pattern EXT_SUBGROUP_SIZE_CONTROL_SPEC_VERSION :: forall a . Integral a => a pattern EXT_SUBGROUP_SIZE_CONTROL_SPEC_VERSION = 2 type EXT_SUBGROUP_SIZE_CONTROL_EXTENSION_NAME = "VK_EXT_subgroup_size_control" -- No documentation found for TopLevel "VK_EXT_SUBGROUP_SIZE_CONTROL_EXTENSION_NAME" pattern EXT_SUBGROUP_SIZE_CONTROL_EXTENSION_NAME :: forall a . (Eq a, IsString a) => a pattern EXT_SUBGROUP_SIZE_CONTROL_EXTENSION_NAME = "VK_EXT_subgroup_size_control"