drm/i915: only recompress FBC after flushing a drawing operation

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There's no need to stop and restart FBC, which is quite expensive as
we have to revalidate the CRTC state. After flushing a drawing
operation we know the CRTC state hasn't changed, so a nuke
(recompress) should be fine.

v2: Make it simpler (Chris).
v3: Rewrite the patch again due to patch order changes.
v4: Rewrite commit message (Chris).

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/

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Paulo Zanoni 2015-11-11 14:46:22 -02:00

parent 820bcabbf0

commit ee7d6cfa4b

1 changed files with 6 additions and 2 deletions

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drivers/gpu/drm/i915/intel_fbc.c

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