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bc8bd54ffd
This week I started seeing GPU crashes on my DragonBoard 845c which I narrowed down to being caused by commitccac7ce373("drm/msm: Refactor address space initialization"). Looking through the patch, Jordan and I couldn't find anything obviously wrong, so I ended up breaking that change up into a number of smaller logical steps so I could figure out which part was causing the trouble. Ends up, visually counting 'f's is hard, esp across a number of lines: 0xfffffff != 0xffffffff This patch corrects the end value we pass in to msm_gem_address_space_create() in adreno_iommu_create_address_space() so that it matches the value used before the problematic patch landed. With this change, I no longer see the GPU crashes that were affecting me. Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Rob Clark <robdclark@gmail.com> Cc: Sean Paul <sean@poorly.run> Cc: Jordan Crouse <jcrouse@codeaurora.org> Cc: freedreno@lists.freedesktop.org Fixes:ccac7ce373("drm/msm: Refactor address space initialization") Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.