Mesa 20.1.7 Brings OpenBSD Fixes, New RadeonSI Workaround

While Mesa 20.2 will hopefully be out next week, Mesa 20.1.7 is out today as the newest stable release for this collection of open-source Linux graphics drivers.

With Mesa 20.1.7 there still are a fair number of changes even with being quite late in the cycle for this Q2'2020 driver series. Among the highlights with Mesa 20.1.7 are:

- A new option for clamping division by zero and through the RadeonSI Gallium3D driver exposing it as the "clamp_div_by_zero" option. This clamp_div_by_zero option in turn is being enabled by default for RadeonSI when running SPECViewPerf 13 and Road Redemption for corrected rendering.

- Fixing Gallivm (Gallium LLVM) to build with the latest LLVM 12 Git development code.

- Many OpenBSD platform fixes from correcting the endian detection to futex fixes to properly being able to read the available system memory.

- The used C++ version is bumped to C++14 with SCons to match the existing behavior of the Meson build system settings for Mesa.

- A variety of Intel fixes.

- Fixing 3D blits with RADV.

- Several fixes for the Panfrost Gallium3D driver for the Arm Mali open-source support.

- Memory leak fixes in the common Vulkan code.

The full list of Mesa 20.1.7 changes via the release announcement.