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21eb1850fa
The evidence suggests that we need to start treating writes via GGTT as incoherent for gen10+, that is that they are internally buffered and not immediately visible via a read along a different physical path. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107398 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107400 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107435 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180801104721.4030-1-chris@chris-wilson.co.uk
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.