drm/i915: Filter out no-op frontbuffer tracking flushes

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Paulo noticed that the fbc frontbuffer tracking flush callback
occasionally gets a call without any bit set. This can happen when we
have to filter flush calls due to e.g. gpu rendering. Filter these
out.

Reported-by: Paulo Zanoni <przanoni@gmail.com>
Cc: Paulo Zanoni <przanoni@gmail.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

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Daniel Vetter 2015-06-18 10:30:21 +02:00

parent fdbff9282c

commit 27e78a2a1f

1 changed files with 3 additions and 0 deletions

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drivers/gpu/drm/i915/intel_frontbuffer.c

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