Linux Graphics: AMD and Mesa
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AMD Zen CPU Microcode Added To Linux-Firmware Tree, Bulldozer Updated
When the Linux Firmware tree was updated on Friday with the newest AMDGPU firmware files for the graphics processors, the Family 17h "Zen" CPU microcode files also made their debut.
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Learn How To Make Use Of Vulkan's New Debug Extension - VK_EXT_debug_utils
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ARM Mali 400/450 "Lima" DRM Driver Steps Closer To Mainline
When it comes to open-source ARM Mali graphics driver efforts there has been the Panfrost driver targeting the Mali T700 series that has occupied much of the limelight recently, but there has been a separate effort still working on open-source driver support for the older 400/450 series.
Qiang Yu who works for AMD during the daytime has for the past number of months been working in his spare time on reviving open-source ARM Mali 400 series support. Qiang's efforts are based upon the original "Lima" driver initiative that was started years earlier by Luc Verhaegen.
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AMD Rolls Out New Firmware For A Number Of GPUs
AMD has landed a number of updated firmware images into the linux-firmware tree for their recent generations of hardware.
There is updated Radeon GPU firmware for Raven Ridge, Fiji, Tonga, Stoney, Topaz, Carrizo, Vega 10, Polaris 10, Polaris 11, and Polaris 12 GPU families. More or less, the newer AMD GPUs now have updated firmware available.
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RADV Gets Support For 32-bit GPU Pointers For User SGPRs, Benefiting Performance
Samuel Pitoiset of Valve's Linux graphics driver team has been working on support for 32-bit GPU pointers for user SGPRs as his latest performance enhancement for this open-source Radeon Vulkan driver.
Months after AMD's Marek Olšák was working on 32-bit pointers for RadeonSI to free up some scalar general purpose registers (SGPRs), Pitoiset has been pursuing similar support for the RADV Vulkan driver.
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Raven Ridge With The Ryzen 5 2400G On Mesa 18.2 + Linux 4.17 Is Finally Stable
Depending upon the motherboard and other factors, the Raven Ridge Linux support has been a bit of a mess since its February launch. Fortunately, with time various Linux driver fixes have landed for improving the stability and performance of these APUs with Zen CPU cores and Vega graphics. During my recent testing of the AMD Ryzen 5 2400G, it was completely stable and running fine with the newest open-source driver code but the Ryzen 3 2200G was still a stability nightmare.
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Mesa 18.1 is out with the shader cache on for Intel
Open source drivers on Linux have advanced rather quickly and now we have another fresh release out with Mesa 18.1 which was released yesterday.
One of the major new features, is that the shader cache for Intel is now turned on by default, which should hopefully result in smoother performance for those of you gaming with an Intel GPU. Vulkan 1.1 support for the AMD RADV and Intel ANV drivers, plus various performance improvements and bug fixes.
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