Vulkan.Extensions.VK_AMD_device_coherent_memory

Name

VK_AMD_device_coherent_memory - device extension

VK_AMD_device_coherent_memory

Name String

VK_AMD_device_coherent_memory

Extension Type

Device extension

Registered Extension Number

230

Revision

1

Ratification Status

Not ratified

Extension and Version Dependencies

VK_KHR_get_physical_device_properties2

Contact

• Tobias Hector @tobski%0A*Here describe the issue or question you have about the VK_AMD_device_coherent_memory extension*

Other Extension Metadata

Last Modified Date

2019-02-04

Contributors

• Ping Fu, AMD
• Timothy Lottes, AMD
• Tobias Hector, AMD

Description

This extension adds the device coherent and device uncached memory types. Any device accesses to device coherent memory are automatically made visible to any other device access. Device uncached memory indicates to applications that caches are disabled for a particular memory type, which guarantees device coherence.

Device coherent and uncached memory are expected to have lower performance for general access than non-device coherent memory, but can be useful in certain scenarios; particularly so for debugging.

New Structures

• Extending PhysicalDeviceFeatures2, DeviceCreateInfo:

  • PhysicalDeviceCoherentMemoryFeaturesAMD

New Enum Constants

• AMD_DEVICE_COHERENT_MEMORY_EXTENSION_NAME

• AMD_DEVICE_COHERENT_MEMORY_SPEC_VERSION

• Extending MemoryPropertyFlagBits:

  • MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD
  • MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD

• Extending StructureType:

  • STRUCTURE_TYPE_PHYSICAL_DEVICE_COHERENT_MEMORY_FEATURES_AMD

Version History

• Revision 1, 2019-02-04 (Tobias Hector)

  • Initial revision

See Also

PhysicalDeviceCoherentMemoryFeaturesAMD

Document Notes

For more information, see the Vulkan Specification

This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.

Documentation

data PhysicalDeviceCoherentMemoryFeaturesAMD

VkPhysicalDeviceCoherentMemoryFeaturesAMD - Structure describing whether device coherent memory can be supported by an implementation

Members

This structure describes the following feature:

Description

If the PhysicalDeviceCoherentMemoryFeaturesAMD structure is included in the pNext chain of the PhysicalDeviceFeatures2 structure passed to getPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. PhysicalDeviceCoherentMemoryFeaturesAMD can also be used in the pNext chain of DeviceCreateInfo to selectively enable these features.

Valid Usage (Implicit)

See Also

VK_AMD_device_coherent_memory, Bool32, StructureType

Constructors

PhysicalDeviceCoherentMemoryFeaturesAMD

Fields

• deviceCoherentMemory :: Bool

  deviceCoherentMemory indicates that the implementation supports device coherent memory.

Instances

Storable PhysicalDeviceCoherentMemoryFeaturesAMD

Defined in Vulkan.Extensions.VK_AMD_device_coherent_memory

Methods

sizeOf :: PhysicalDeviceCoherentMemoryFeaturesAMD -> Int

alignment :: PhysicalDeviceCoherentMemoryFeaturesAMD -> Int

peekElemOff :: Ptr PhysicalDeviceCoherentMemoryFeaturesAMD -> Int -> IO PhysicalDeviceCoherentMemoryFeaturesAMD

pokeElemOff :: Ptr PhysicalDeviceCoherentMemoryFeaturesAMD -> Int -> PhysicalDeviceCoherentMemoryFeaturesAMD -> IO ()

peekByteOff :: Ptr b -> Int -> IO PhysicalDeviceCoherentMemoryFeaturesAMD

pokeByteOff :: Ptr b -> Int -> PhysicalDeviceCoherentMemoryFeaturesAMD -> IO ()

peek :: Ptr PhysicalDeviceCoherentMemoryFeaturesAMD -> IO PhysicalDeviceCoherentMemoryFeaturesAMD

poke :: Ptr PhysicalDeviceCoherentMemoryFeaturesAMD -> PhysicalDeviceCoherentMemoryFeaturesAMD -> IO ()

Show PhysicalDeviceCoherentMemoryFeaturesAMD

Defined in Vulkan.Extensions.VK_AMD_device_coherent_memory

Methods

showsPrec :: Int -> PhysicalDeviceCoherentMemoryFeaturesAMD -> ShowS

show :: PhysicalDeviceCoherentMemoryFeaturesAMD -> String

showList :: [PhysicalDeviceCoherentMemoryFeaturesAMD] -> ShowS

Eq PhysicalDeviceCoherentMemoryFeaturesAMD

Defined in Vulkan.Extensions.VK_AMD_device_coherent_memory

Methods

(==) :: PhysicalDeviceCoherentMemoryFeaturesAMD -> PhysicalDeviceCoherentMemoryFeaturesAMD -> Bool

(/=) :: PhysicalDeviceCoherentMemoryFeaturesAMD -> PhysicalDeviceCoherentMemoryFeaturesAMD -> Bool

FromCStruct PhysicalDeviceCoherentMemoryFeaturesAMD

Defined in Vulkan.Extensions.VK_AMD_device_coherent_memory

Methods

peekCStruct :: Ptr PhysicalDeviceCoherentMemoryFeaturesAMD -> IO PhysicalDeviceCoherentMemoryFeaturesAMD

ToCStruct PhysicalDeviceCoherentMemoryFeaturesAMD

Defined in Vulkan.Extensions.VK_AMD_device_coherent_memory

Methods

withCStruct :: PhysicalDeviceCoherentMemoryFeaturesAMD -> (Ptr PhysicalDeviceCoherentMemoryFeaturesAMD -> IO b) -> IO b

pokeCStruct :: Ptr PhysicalDeviceCoherentMemoryFeaturesAMD -> PhysicalDeviceCoherentMemoryFeaturesAMD -> IO b -> IO b

withZeroCStruct :: (Ptr PhysicalDeviceCoherentMemoryFeaturesAMD -> IO b) -> IO b

pokeZeroCStruct :: Ptr PhysicalDeviceCoherentMemoryFeaturesAMD -> IO b -> IO b

cStructSize :: Int

cStructAlignment :: Int

Zero PhysicalDeviceCoherentMemoryFeaturesAMD

Defined in Vulkan.Extensions.VK_AMD_device_coherent_memory

Methods

zero :: PhysicalDeviceCoherentMemoryFeaturesAMD

type AMD_DEVICE_COHERENT_MEMORY_SPEC_VERSION = 1

pattern AMD_DEVICE_COHERENT_MEMORY_SPEC_VERSION :: forall a. Integral a => a

type AMD_DEVICE_COHERENT_MEMORY_EXTENSION_NAME = "VK_AMD_device_coherent_memory"

pattern AMD_DEVICE_COHERENT_MEMORY_EXTENSION_NAME :: forall a. (Eq a, IsString a) => a