This extension provides new facilities to query DRM properties for physical devices, enabling users to match Vulkan physical devices with DRM nodes on Linux.

Its functionality closely overlaps with EGL_EXT_device_drm¹. Unlike the EGL extension, this extension does not expose a string containing the name of the device file and instead exposes device minor numbers.

DRM defines multiple device node types. Each physical device may have one primary node and one render node associated. Physical devices may have no primary node (e.g. if the device does not have a display subsystem), may have no render node (e.g. if it is a software rendering engine), or may have neither (e.g. if it is a software rendering engine without a display subsystem).

To query DRM properties for a physical device, chain VkPhysicalDeviceDrmPropertiesEXT to VkPhysicalDeviceProperties2.

References

• EGL_EXT_device_drm

VK_EXT_physical_device_drm

Name String

VK_EXT_physical_device_drm

Extension Type

Device extension

Registered Extension Number

354

Revision

1

Extension and Version Dependencies

VK_KHR_get_physical_device_properties2

Contact

• Simon Ser emersion

Other Extension Metadata

Last Modified Date

2021-06-09

IP Status

No known IP claims.

Contributors

• Simon Ser