drm/radeon: rename struct radeon_cp to radeon_ring

That naming seems to make more sense, since we not
only want to run PM4 rings with it.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/radeon_semaphore.c b/drivers/gpu/drm/radeon/radeon_semaphore.c
index 80c1a9e..f8cf044 100644
--- a/drivers/gpu/drm/radeon/radeon_semaphore.c
+++ b/drivers/gpu/drm/radeon/radeon_semaphore.c
@@ -121,13 +121,13 @@
 void radeon_semaphore_emit_signal(struct radeon_device *rdev, int ring,
 			          struct radeon_semaphore *semaphore)
 {
-	radeon_semaphore_ring_emit(rdev, ring, &rdev->cp[ring], semaphore, false);
+	radeon_semaphore_ring_emit(rdev, ring, &rdev->ring[ring], semaphore, false);
 }
 
 void radeon_semaphore_emit_wait(struct radeon_device *rdev, int ring,
 			        struct radeon_semaphore *semaphore)
 {
-	radeon_semaphore_ring_emit(rdev, ring, &rdev->cp[ring], semaphore, true);
+	radeon_semaphore_ring_emit(rdev, ring, &rdev->ring[ring], semaphore, true);
 }
 
 void radeon_semaphore_free(struct radeon_device *rdev,