drm: fix compile failure by including <linux/swiotlb.h>

On tile architecture (with "make allyesconfig") including
<linux/swiotlb.h> is required to call swiotlb_nr_tbl().

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
This commit is contained in:
Chris Metcalf 2013-02-01 13:44:33 -05:00
commit 4cfe7629be
2 changed files with 2 additions and 0 deletions