Chris Wilson 39f3be162c drm/i915: Kick waiters on resetting legacy rings
For reasons unknown, interrupts following a reset do not arrive, but
this can be papered over by kicking any waiter and peeking at the
breadcrumbs following the reset.

Testcase: igt/gem_eio/reset-stress
References: https://bugs.freedesktop.org/show_bug.cgi?id=105957
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180730075351.15569-2-chris@chris-wilson.co.uk
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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.
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