drm/i915: Use I915_READ_FW in i915_get_vblank_counter()

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Optimize the multi-register read in i915_get_vblank_counter() a little
bit by grabbing the uncore lock manually and using I915_READ_FW().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170309154434.29303-2-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

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Ville Syrjälä 2017-03-09 17:44:30 +02:00

parent c750bdd3e7

commit 694e409daa

1 changed files with 8 additions and 3 deletions

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drivers/gpu/drm/i915/i915_irq.c

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