rockchip_gem_mmap  208 drivers/gpu/drm/rockchip/rockchip_drm_drv.c 	.mmap = rockchip_gem_mmap,
rockchip_gem_mmap   38 drivers/gpu/drm/rockchip/rockchip_drm_gem.h int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma);