drm/i915: Skip vblank waits for cursor updates when watermarks dont need updating

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In legacy cursor updates we need the extra vblank waits if we update
watermarks, and then we cannot skip the vblank for cursors.

This is why for < gen9 we disabled the cursor fastpath, but we can skip
the wait when post vblank watermarks are untouched.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170919121419.13708-2-maarten.lankhorst@linux.intel.com

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Maarten Lankhorst 2017-09-19 14:14:19 +02:00

parent 3cf50c63a7

commit 213f1bd035

1 changed files with 10 additions and 2 deletions

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drivers/gpu/drm/i915/intel_display.c

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