While AMD is letting go of their Linux staff responsible for new CPU enablement, there's no slowdown on the Intel side for future hardware enablement under Linux. New Haswell Linux patches were published yesterday, which also reveal a few more details about the video playback improvements to be found on these Intel processors to be introduced in 2013.
If you liked yesterday's post by Daniel Vetter of Intel's Open-Source Technology Center that covered going over the Graphics Execution Manager for memory management, today he's around with a second part that details command submission handling for the Intel open-source Linux driver.
For those not yet familiar with GEM, the Graphics Execution Manager, that Intel's open-source Linux graphics driver uses for in-kernel memory management, here's a brief guide.
Intel Linux developers continue to work on atomic mode-setting and page-flipping support for their Linux DRM infrastructure.
Just minutes after writing about how Intel keeps releasing open-source Linux code for Haswell, their next-generation hardware for 2013, they ended up pushing out their initial video acceleration (VA-API) support code.
Intel continues to push out more open-source kernel code for enabling their next-generation Haswell processors to be properly supported under Linux.
Open-Source Intel developers have long been working towards a tear-free Linux desktop with proper vsync support. For Sandy Bridge and Ivy Bridge hardware there's still been some tearing issues, but they hope to soon finally have it solved.
While Intel is now forcing on S3TC to be advertised for their Mesa driver by default, the ETC2 texture compression scheme holds more hope and support for it within the Intel Mesa driver is also being worked on.
Two patches from Intel's Ian Romanick for their open-source Mesa DRI driver will now enable S3TC extensions always plus floating-point textures. These two features previously were not enabled by default out of patent fears.
After the change yesterday to now hide early Intel hardware support by default to fend off early driver issues for new graphics hardware -- such as mode-setting just outright failing to work -- Intel has commented a bit more on the driver support for the forthcoming "Haswell" hardware.
While Intel is quick to work on enabling future hardware within their open-source graphics driver stack for Linux, the early support is often buggy and problematic on the early code before the hardware is released. Intel now intends to conceal this early hardware support -- for Valley View and Haswell right now -- behind a run-time variable for toggling the support.
Chris Wilson released the xf86-video-intel 2.20.10 DDX driver this weekend and it fixes up a number of core graphics driver bugs, including issues for older generations of Intel integrated graphics hardware.
Following this morning's article about running GStreamer over VA-API on Wayland, Gwenole Beauchesne of Intel wrote in about some new VA-API package releases.
There's a bit of a spat that started between Intel and Samsung developers working on the Tizen operating system.
Aside from knowing about the Radeon DRM driver changes queued up for the Linux 3.7 kernel, there's also lots of good changes piling up for the Intel DRM graphics driver with this next kernel release.
Intel SMAP support has landed in the mainline Linux kernel, which is a Supervisor Mode Access Prevention found on newer Intel CPUs.
The Intel i965 Mesa DRI driver can now handle register spilling.
Chris Wilson has released yet another xf86-video-intel 2.20.x driver. This time around, the 2.20.9 point release brings back X-Video Motion Compensation (XvMC) and also fixes a critical bug.
While it's been a number of days since mentioning anything on Intel's forthcoming Valley View Atom SoC, the open-source graphics driver support continues to mature.
An alpha release of the Tizen 2.0 SDK with source-code was released this week.
Several Phoronix readers have written in about libhybris, a way to load Android libraries while overriding some Bionic symbols with those symbols from glibc.
Intel has been working on a tablet shell for Wayland's Weston compositor. Work on this reference tablet shell continues to move forward.
Back in August new Intel driver mode-setting code was unveiled by Daniel Vetter. Today at XDC2012 he explained this i915 KMS driver rework to the X.Org developers in Germany.
While some users want an Intel Gallium3D driver, it likely won't happen anytime soon (if ever) since the Intel OTC developers remain unconvinced.
There's a new Intel X.Org driver release which now allows the Valley View software development vehicle to light up.
While Intel can be loved for consistently supporting their in-house products under Linux, and their Open-Source Technology Center (OTC) makes great strides at improving Linux from open-source contributions to the Mesa graphics stack to doing all sorts of kernel-level work along with major contributions to WebKit, Tizen, Wayland, and other key open-source components, they have a new blemish. It appears Intel won't be supporting their forthcoming Atom "Clover Trail" hardware under Linux.
New patches have emerged today for supporting Stereoscopic 3D, as part of the HDMI 1.4a specification, with the open-source Intel Linux graphics driver.
For those wondering about the state of atomic mode-setting / page-flipping, it's still being tackled by an Intel developer.
A patch has finally been written for supporting HBR (High-Bit-Rate) audio over Intel HDMI devices on Linux.
Aside from a new Intel PRIME'd driver this weekend, there's also new Intel DRM driver code available for testing.
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