drm/i915: Implement GPU semaphores for inter-ring synchronisation on SNB
The bulk of the change is to convert the growing list of rings into an
array so that the relationship between the rings and the semaphore sync
registers can be easily computed.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 64844e2..413a040 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -487,11 +487,11 @@
!dev_priv->mm.suspended) {
dev_priv->mm.suspended = 0;
- dev_priv->render_ring.init(&dev_priv->render_ring);
+ dev_priv->ring[RCS].init(&dev_priv->ring[RCS]);
if (HAS_BSD(dev))
- dev_priv->bsd_ring.init(&dev_priv->bsd_ring);
+ dev_priv->ring[VCS].init(&dev_priv->ring[VCS]);
if (HAS_BLT(dev))
- dev_priv->blt_ring.init(&dev_priv->blt_ring);
+ dev_priv->ring[BCS].init(&dev_priv->ring[BCS]);
mutex_unlock(&dev->struct_mutex);
drm_irq_uninstall(dev);