drm/i915: Optimize gen8_enable|disable_vblank functions

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Let's cache the IMR value like on other platforms. This is needed to
implement the underrun reporting since then we'll have two places that
change the same register at runtime.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Daniel Vetter 2013-11-07 11:05:45 +01:00

parent 0fbe7870d7

commit 7167d7c677

1 changed files with 6 additions and 12 deletions

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drivers/gpu/drm/i915/i915_irq.c

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