rockchip_gem_prime_vmap 226 drivers/gpu/drm/rockchip/rockchip_drm_drv.c .gem_prime_vmap = rockchip_gem_prime_vmap, rockchip_gem_prime_vmap 34 drivers/gpu/drm/rockchip/rockchip_drm_gem.h void *rockchip_gem_prime_vmap(struct drm_gem_object *obj);