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; -- 1.7.9.5 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
