[Intel-gfx] [Inter-gfx][PATCH][v3 3/4] drm/i915: add set_tail hook in struct intel_ring_buffer

[Zhenyu Wang]

On 2010.09.16 13:10:29 +0800, Xiang, Haihao wrote:
> > Or can't that be done in init function by using advance_ring?
> advance_ring uses ring->tail to set TAIL register, i965_reset() also
> invokes ring->init() to re-init ring buffer, how to guarantee ring->tail
> is 0? BTW advance_ring can be implemented as set_tail(dev, ring->tail).
> 

oh, that's bad, not only just for render ring, but ring tail should
always be inited correctly, not just in static variable..

-- 
Open Source Technology Center, Intel ltd.

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