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Graphics: Intel's OpenGL Mesa Driver, DRM and More

Submitted by Roy Schestowitz on Friday 15th of February 2019 10:34:01 AM Filed under
Graphics/Benchmarks
  • Intel's OpenGL Mesa Driver To Better Handle Recovery In Case Of GPU Hangs

    It's sure been a busy week in the Intel open-source graphics driver space... The latest improvement is a patch series providing better context restoration in the case of GPU hangs.

    Chris Wilson who usually deals with the Intel DRM kernel driver, including on the reset/restore front recently, sent out a set of two patches for improving the Intel i965 Mesa driver's behavior following GPU hangs.

  • Intel's Linux DRM Driver To Enable PSR2 Power-Savings By Default

    The Intel DRM/KMS kernel driver will soon see PSR2 panel self refresh capabilities enabled by default for allowing more power-savings on Intel-powered ultrabooks/notebooks.

    For a while now Intel's Direct Rendering Manager driver has enabled Panel Self Refresh (PSR) by default as well as other power-savings features like frame-buffer compression (FBC). But the newer Panel Self Refresh standard, PSR2, for eDP displays has not been enabled by default.

  • Intel Linux Graphics Driver Adding Device Local Memory - Possible Start of dGPU Bring-Up

    A big patch series was sent out today amounting to 42 patches and over four thousand lines of code for introducing the concept of memory regions to the Intel Linux graphics driver. The memory regions support is preparing for device local memory with future Intel graphics products.

    The concept of memory regions is being added to the Intel "i915" Linux kernel DRM driver for "preparation for upcoming devices with device local memory." The concept is about having different "regions" of memory for system memory as for any device local memory (LMEM). Today's published code also introduces a simple allocator and allowing the existing GEM memory management code to be able to allocate memory to these different memory regions. Up to now with Intel integrated graphics, they haven't had to worry about this functionality not even with their eDRAM/L4 cache of select graphics processors.

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