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Graphics: Mesa and Intel

Submitted by Roy Schestowitz on Wednesday 13th of March 2019 02:54:31 PM Filed under
Graphics/Benchmarks
  • GLX_ARB_create_context_no_error Support Lands In Mesa 19.1

    Mesa 19.1 has added support for the GLX extension to create an OpenGL / OpenGL ES context that doesn't generate errors -- assuming the driver supports the likes of KHR_no_error. For applications/games acquiring their GL/GLES context in this no-error mode, it can yield possible performance benefits.

    After floating around the mailing list for many months (well, almost two years!), GLX_ARB_create_context_no_error support has landed into the Mesa GLX code for next quarter's 19.1 release.

  • NIR Improvements Land In Mesa 19.1, Helping RadeonSI & Intel

    Over the past day there has been some notable NIR improvements landing in Mesa 19.1.

    First up, Timothy Arceri working for Valve landed partial loop unrolling support to the common NIR compiler code. For a Rise of the Tomb Raider compute shader test this partial loop unrolling drops the GPU time from 350 to 325 seconds. The shader-db coverage also is in favor on various Radeon and Intel systems. Timothy also pushed several follow-on patches with related enhancements.

  • Intel Sends Out Comet Lake Linux Graphics Driver Support

    While we are looking forward most to Icelake with the new "Gen 11" graphics, Intel has been working on Comet Lake for introduction this year as a Coffeelake derived successor to Whiskey Lake for desktops and mobile devices. The patches needed for Comet Lake graphics driver support on Linux are now pending.

    Sent out last week were the patches for adding Comet Lake "CML" support to the Intel Linux DRM kernel driver. Given that Comet Lake graphics are pretty much the same Kabylake/Coffeelake "Gen 9" graphics that have been out for a while, it's namely new PCI IDs being added.

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