Atomic Mode-Setting Ported To The Cirrus KMS Driver

Written by Michael Larabel in Linux Kernel on 18 August 2017 at 12:11 PM EDT. Add A Comment
LINUX KERNEL
The Cirrus DRM/KMS driver commonly used by virtual machines with QEMU emulating the vintage graphics processor now has support for atomic mode-setting.

Varad Gautam has ported atomic mode-setting to the Cirrus DRM driver so that it can be used by this emulated hardware in QEMU, not particularly for the actual Cirrus hardware from the late 90's.

Atomic mode-setting cleans up Linux's display mode-setting and can make for a cleaner experience by testing a desired mode in advance of the commit operation, reducing possible flickering situations, and also being faster than the traditional code-paths.

The patches come in at less than one thousand lines of code and are up for review on dri-devel.
Add A Comment
Related News
Linux 6.10 Preps A Kernel Panic Screen - Sort Of A "Blue Screen of Death"
Linus Torvalds Injects Tabs To Thwart Kconfig Parsers Not Correctly Handling Them
Linux 6.9-rc4 Brings More Bcachefs Fixes, Native BHI Mitigation
Linux 6.10 To Account For NUMA Node When Allocating Per-CPU Cpumasks
Linux 6.10 SLUB Optimization To Reduce Memory Consumption In Extreme Scenarios
Linux 6.8.5 & Other Stable Kernel Updates Due To Native BHI Vulnerability
About The Author
Michael Larabel

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.

Popular News This Week
Linus Torvalds Injects Tabs To Thwart Kconfig Parsers Not Correctly Handling Them
Linux 6.10 To Merge NTSYNC Driver For Emulating Windows NT Synchronization Primitives
Fedora 41 Looks To "-O3" Optimizations For Its Python Build
Former Nouveau Lead Developer Joins NVIDIA, Continues Working On Open-Source Driver
APT 2.9 Released: Debian's APT 3.0 To Have A New UI With Colors, Columnar Display & More
Rust-Written LAVD Kernel Scheduler Shows Promising Results For Linux Gaming
Open-Source Radeon Driver Enables Support For Vulkan Video H.264/H.265 Encode
Ubuntu 24.04 Beta Now Available For Testing