drm/i915: add set_tail hook in struct intel_ring_buffer

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This is prepared for video codec ring buffer on Sandybridge. It is
needed to read/write more than one register to move the tail pointer of
the video codec ring on Sandybridge.

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

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Xiang, Haihao 2010-09-16 10:43:12 +08:00 • committed by Chris Wilson

parent 5c1143bbec

commit d46eefa297

2 changed files with 19 additions and 5 deletions

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22

drivers/gpu/drm/i915/intel_ringbuffer.c

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2

drivers/gpu/drm/i915/intel_ringbuffer.h

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