drm/radeon: fix ring free alignment calculations

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / radeon / radeon_cp.c

diff --git a/drivers/gpu/drm/radeon/radeon_cp.c b/drivers/gpu/drm/radeon/radeon_cp.c
index 77a7a4d846508f8e2f1e89aee9b0f3ff812cd84a..aff90bb964885568567f17d43a2f1b8dd79f179c 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_cp.c
+++ b/drivers/gpu/drm/radeon/radeon_cp.c
@@ -2185,9 +2185,9 @@ void radeon_commit_ring(drm_radeon_private_t *dev_priv)
 
        /* check if the ring is padded out to 16-dword alignment */
 
-       tail_aligned = dev_priv->ring.tail & 0xf;
+       tail_aligned = dev_priv->ring.tail & (RADEON_RING_ALIGN-1);
        if (tail_aligned) {
-               int num_p2 = 16 - tail_aligned;
+               int num_p2 = RADEON_RING_ALIGN - tail_aligned;
 
                ring = dev_priv->ring.start;
                /* pad with some CP_PACKET2 */