minigbm: use drv_array for mappings

Let's start allowing multiple mappings of the same buffer when
different map flags are passed in.

BUG=chromium:764871
TEST=mmap_test -g on Kevin, gbmtest

Change-Id: I4eb0b6f4c3572a92001696c2720d5a5f7d9d73a4
Reviewed-on: https://chromium-review.googlesource.com/758146
Commit-Ready: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Joe Kniss <djmk@google.com>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drv_priv.h b/drv_priv.h
index e5b9d55..dceeeb7 100644
--- a/drv_priv.h
+++ b/drv_priv.h
@@ -60,7 +60,7 @@ struct driver {
 	const struct backend *backend;
 	void *priv;
 	void *buffer_table;
-	void *map_table;
+	struct drv_array *mappings;
 	struct combinations combos;
 	pthread_mutex_t driver_lock;
 };