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b156def991
Currently a FIFO underrun just causes FBC to be deactivated, and later checks then prevent it from being reactivated. We can simpify our lives a bit by logically disabling FBC on FIFO underruns. This avoids the funny intermediate state where FBC is logically enabled but can't actually be activated. v2: intel_wait_for_vblank() is no more Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211124113652.22090-16-ville.syrjala@linux.intel.com Reviewed-by: Mika Kahola <mika.kahola@intel.com>
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.