gralloc0_register_buffer: initialize gralloc0 when needed

[android-x86/external-minigbm.git] / mediatek.c

diff --git a/mediatek.c b/mediatek.c
index b999e28..1a1061c 100644 (file)
--- a/mediatek.c
+++ b/mediatek.c
@@ -78,7 +78,7 @@ static int mediatek_bo_create(struct bo *bo, uint32_t width, uint32_t height, ui
        return 0;
 }
 
-static void *mediatek_bo_map(struct bo *bo, struct map_info *data, size_t plane, int prot)
+static void *mediatek_bo_map(struct bo *bo, struct map_info *data, size_t plane, uint32_t map_flags)
 {
        int ret;
        struct drm_mtk_gem_map_off gem_map;
@@ -93,7 +93,8 @@ static void *mediatek_bo_map(struct bo *bo, struct map_info *data, size_t plane,
                return MAP_FAILED;
        }
 
-       void *addr = mmap(0, bo->total_size, prot, MAP_SHARED, bo->drv->fd, gem_map.offset);
+       void *addr = mmap(0, bo->total_size, drv_get_prot(map_flags), MAP_SHARED, bo->drv->fd,
+                         gem_map.offset);
 
        data->length = bo->total_size;
 
@@ -125,7 +126,7 @@ static int mediatek_bo_unmap(struct bo *bo, struct map_info *data)
 static int mediatek_bo_flush(struct bo *bo, struct map_info *data)
 {
        struct mediatek_private_map_data *priv = data->priv;
-       if (priv)
+       if (priv && (data->map_flags & BO_MAP_WRITE))
                memcpy(priv->gem_addr, priv->cached_addr, bo->total_size);
 
        return 0;