On Thu, 26 Jun 2014 18:23:58 +0100 John.C.Harrison@xxxxxxxxx wrote: > From: John Harrison <John.C.Harrison@xxxxxxxxx> > > There is a workaround for a hardware bug when reading the seqno from the status > page. The bug does not exist on VLV however, the workaround was still being > applied. > --- > drivers/gpu/drm/i915/intel_ringbuffer.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c > index 279488a..bad5db0 100644 > --- a/drivers/gpu/drm/i915/intel_ringbuffer.c > +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c > @@ -1960,7 +1960,10 @@ int intel_init_render_ring_buffer(struct drm_device *dev) > ring->irq_put = gen6_ring_put_irq; > } > ring->irq_enable_mask = GT_RENDER_USER_INTERRUPT; > - ring->get_seqno = gen6_ring_get_seqno; > + if (IS_VALLEYVIEW(dev)) > + ring->get_seqno = ring_get_seqno; > + else > + ring->get_seqno = gen6_ring_get_seqno; > ring->set_seqno = ring_set_seqno; > ring->semaphore.sync_to = gen6_ring_sync; > ring->semaphore.signal = gen6_signal; Assuming this has been well tested: Reviewed-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> -- Jesse Barnes, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
