diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index d33fec488713b71c7fd45d4b452d739e7f85ee0d..bdb4c0e0736ba2fcdf1c78cbcc04cc44a754bc7b 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -869,11 +869,11 @@ static ssize_t radeon_ttm_gtt_read(struct file *f, char __user *buf,
 
 		page = rdev->gart.pages[p];
 		if (page) {
-			ptr = kmap(page);
+			ptr = kmap_local_page(page);
 			ptr += off;
 
 			r = copy_to_user(buf, ptr, cur_size);
-			kunmap(rdev->gart.pages[p]);
+			kunmap_local(ptr);
 		} else
 			r = clear_user(buf, cur_size);