Name

VK_EXT_pci_bus_info - device extension

VK_EXT_pci_bus_info

Name String

VK_EXT_pci_bus_info

Extension Type

Device extension

Registered Extension Number

213

Revision

2

Extension and Version Dependencies

• Requires Vulkan 1.0
• Requires VK_KHR_get_physical_device_properties2

Contact

• Matthaeus G. Chajdas https://github.com/KhronosGroup/Vulkan-Docs/issues/new?title=VK_EXT_pci_bus_info:%20&body=@anteru%20

Other Extension Metadata

Last Modified Date

2018-12-10

IP Status

No known IP claims.

Contributors

• Matthaeus G. Chajdas, AMD
• Daniel Rakos, AMD

Description

This extension adds a new query to obtain PCI bus information about a physical device.

Not all physical devices have PCI bus information, either due to the device not being connected to the system through a PCI interface or due to platform specific restrictions and policies. Thus this extension is only expected to be supported by physical devices which can provide the information.

As a consequence, applications should always check for the presence of the extension string for each individual physical device for which they intend to issue the new query for and should not have any assumptions about the availability of the extension on any given platform.

New Structures

• Extending PhysicalDeviceProperties2:

  • PhysicalDevicePCIBusInfoPropertiesEXT

New Enum Constants

• EXT_PCI_BUS_INFO_EXTENSION_NAME

• EXT_PCI_BUS_INFO_SPEC_VERSION

• Extending StructureType:

  • STRUCTURE_TYPE_PHYSICAL_DEVICE_PCI_BUS_INFO_PROPERTIES_EXT

Version History

• Revision 2, 2018-12-10 (Daniel Rakos)

  • Changed all members of the new structure to have the uint32_t type

• Revision 1, 2018-10-11 (Daniel Rakos)

  • Initial revision

See Also

PhysicalDevicePCIBusInfoPropertiesEXT

Document Notes

For more information, see the Vulkan Specification

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