1// Copyright (c) 2020 Simon Ser 2// 3// SPDX-License-Identifier: CC-BY-4.0 4 5include::{generated}/meta/{refprefix}VK_EXT_physical_device_drm.adoc[] 6 7=== Other Extension Metadata 8 9*Last Modified Date*:: 10 2021-06-09 11*IP Status*:: 12 No known IP claims. 13*Contributors*:: 14 - Simon Ser 15 16=== Description 17 18This extension provides new facilities to query DRM properties for physical 19devices, enabling users to match Vulkan physical devices with DRM nodes on 20Linux. 21 22Its functionality closely overlaps with 23`EGL_EXT_device_drm`^<<VK_EXT_physical_device_drm-fn1,1>>^. 24Unlike the EGL extension, this extension does not expose a string containing 25the name of the device file and instead exposes device minor numbers. 26 27DRM defines multiple device node types. 28Each physical device may have one primary node and one render node 29associated. 30Physical devices may have no primary node (e.g. if the device does not have 31a display subsystem), may have no render node (e.g. if it is a software 32rendering engine), or may have neither (e.g. if it is a software rendering 33engine without a display subsystem). 34 35To query DRM properties for a physical device, chain 36slink:VkPhysicalDeviceDrmPropertiesEXT to slink:VkPhysicalDeviceProperties2. 37 38include::{generated}/interfaces/VK_EXT_physical_device_drm.adoc[] 39 40=== References 41 42 . [[VK_EXT_physical_device_drm-fn1]] 43 https://registry.khronos.org/EGL/extensions/EXT/EGL_EXT_device_drm.txt[`EGL_EXT_device_drm`] 44 45=== Version History 46 47 * Revision 1, 2021-06-09 48 ** First stable revision 49