11988e3938
The addition of the DC_FLUSH failed to ensure sanctity of the post-sync write as CI immediately got a completion CS-event before the breadcrumb was coherent. So let's try the other idea of moving the post-sync write into the CS_STALL. References: https://bugs.freedesktop.org/show_bug.cgi?id=111514 References: e8f6b4952ec5 ("drm/i915/execlists: Flush the post-sync breadcrumb write harder") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190829081150.10271-2-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.
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.