[intel] When polling for ring space, sleep for a lot longer (10ms)

If the ring is full, the engine will surely be running for more than 10ms.

diff --git a/shared-core/i915_dma.c b/shared-core/i915_dma.c
index 24f361e..cf2dfeb 100644 (file)
--- a/shared-core/i915_dma.c
+++ b/shared-core/i915_dma.c
@@ -63,7 +63,7 @@ int i915_wait_ring(struct drm_device * dev, int n, const char *caller)
 
                last_head = ring->head;
                last_acthd = acthd;
-               DRM_UDELAY(10);
+               msleep_interruptible (10);
        }
 
        return -EBUSY;