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bceddc2cb5
It turns out that when the display is enabled by the bootloader, we can get some transient iommu faults from the display. Which doesn't go over too well when we install a fault handler that is gpu specific. To avoid this, defer installing the fault handler until we get around to setting up per-process pgtables (which is adreno_smmu specific). The arm-smmu fallback error reporting is sufficient for reporting display related faults (and in fact was all we had prior tof8f934c180) Reported-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reported-by: Yassine Oudjana <y.oudjana@protonmail.com> Fixes:2a574cc05d("drm/msm: Improve the a6xx page fault handler") Signed-off-by: Rob Clark <robdclark@chromium.org> Tested-by: John Stultz <john.stultz@linaro.org> Tested-by: Yassine Oudjana <y.oudjana@protonmail.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20210707180113.840741-1-robdclark@gmail.com 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.