drm/i915/execlists: Mark up priority boost on preemption

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Record the priority boost we giving to the preempted client or else we
may end up in a situation where the priority queue no longer matches the
request priority order and so we can end up in an infinite loop of
preempting the same pair of requests.

Fixes: e9eaf82d97 ("drm/i915: Priority boost for waiting clients")
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/20190123135155.21562-1-chris@chris-wilson.co.uk
(cherry picked from commit 6e062b60b0)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

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Chris Wilson 2019-01-23 13:51:55 +00:00 • committed by Jani Nikula

parent 49a57857ae

commit 2b24408158

1 changed files with 4 additions and 0 deletions

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drivers/gpu/drm/i915/intel_lrc.c

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