From d46eefa29724b1be0e8e90a3a51a190b912ebfab Mon Sep 17 00:00:00 2001 From: "Xiang, Haihao" Date: Thu, 16 Sep 2010 10:43:12 +0800 Subject: drm/i915: add set_tail hook in struct intel_ring_buffer 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 Reviewed-by: Chris Wilson Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/intel_ringbuffer.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.h') diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 5603d6e945e9..7bd571c796ae 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -48,6 +48,8 @@ struct intel_ring_buffer { struct intel_ring_buffer *ring); unsigned int (*get_tail)(struct drm_device *dev, struct intel_ring_buffer *ring); + void (*set_tail)(struct drm_device *dev, + u32 value); unsigned int (*get_active_head)(struct drm_device *dev, struct intel_ring_buffer *ring); void (*advance_ring)(struct drm_device *dev, -- cgit v1.2.3