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(parent: 313443b) | patch
drm/i915/gt: Ignore forcewake acquisition for posting_reads
authorChris Wilson <chris@chris-wilson.co.uk>
Wed, 3 Jul 2019 15:52:25 +0000 (16:52 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Thu, 4 Jul 2019 13:42:38 +0000 (14:42 +0100)
commit21de5a9e34fb0f3efa31df5712cedc0ae97f7b4d
tree9b4d2a327fbd32c74a5455deeecf375a1e91b93etree | snapshot
parent313443b16ac26dd0250462d8513c5b5c0a188e38commit | diff
drm/i915/gt: Ignore forcewake acquisition for posting_reads

We don't care about the result of the read, so it may be garbage, we
only care that the mmio is flushed. As such, we can forgo using an
individual forcewake and lock around any posting-read for an engine.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190703155225.9501-4-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/gt/intel_engine.h diff | blob | history
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