host1x_bo_pin
map = host1x_bo_pin(dc->dev, &bo->base, DMA_TO_DEVICE, &dc->client.cache);
mapping->map = host1x_bo_pin(mapping_dev, mapping->bo, direction, NULL);
EXPORT_SYMBOL(host1x_bo_pin);
map = host1x_bo_pin(dev, bo, direction, NULL);
map = host1x_bo_pin(host->dev, g->bo, DMA_TO_DEVICE, NULL);
struct host1x_bo_mapping *host1x_bo_pin(struct device *dev, struct host1x_bo *bo,