Chris Wilson 62c8e42345 drm/i915: Skip unused contexts for context_barrier_task()
If the context has not been used yet, it needs no barrier, and in the
process fix up the selftest in mock_contexts.

Testcase: igt/gem_ctx_clone/vm
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190429090735.326-1-chris@chris-wilson.co.uk
2019-04-29 11:12:37 +01:00
2019-03-07 18:32:03 -08:00
2019-04-15 15:51:49 +10:00
2019-04-02 18:12:44 -10:00
2019-04-14 15:17:41 -07:00

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.
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