minigbm: respect map_flags in all cases
When the map flags do not feature BO_TRANSFER_WRITE, we should
not copy back any shadow buffers we maintain.
BUG=b:67434931
TEST=android.view.cts.SurfaceViewSyncTests on Mediatek/Rockchip
Change-Id: I7078bfc5a8d770a52949d43ea68efc4a870e9227
Reviewed-on: https://chromium-review.googlesource.com/703875
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Gurchetan Singh <gurchetansingh@chromium.org>
Commit-Queue: Gurchetan Singh <gurchetansingh@chromium.org>
diff --git a/drv.h b/drv.h
index ad2f82a..e62d164 100644
--- a/drv.h
+++ b/drv.h
@@ -82,6 +82,7 @@
void *addr;
size_t length;
uint32_t handle;
+ uint32_t map_flags;
int32_t refcount;
void *priv;
};