/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note *//* * Framework for buffer objects that can be shared across devices/subsystems. * * Copyright(C) 2015 Intel Ltd * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program.  If not, see <http://www.gnu.org/licenses/>. */ #ifndef _DMA_BUF_UAPI_H_#define _DMA_BUF_UAPI_H_ #include <linux/types.h> /* begin/end dma-buf functions used for userspace mmap. */struct dma_buf_sync {	__u64 flags;}; #define DMA_BUF_SYNC_READ      (1 << 0)#define DMA_BUF_SYNC_WRITE     (2 << 0)#define DMA_BUF_SYNC_RW        (DMA_BUF_SYNC_READ | DMA_BUF_SYNC_WRITE)#define DMA_BUF_SYNC_START     (0 << 2)#define DMA_BUF_SYNC_END       (1 << 2)#define DMA_BUF_SYNC_VALID_FLAGS_MASK \	(DMA_BUF_SYNC_RW | DMA_BUF_SYNC_END) #define DMA_BUF_NAME_LEN	32 #define DMA_BUF_BASE		'b'#define DMA_BUF_IOCTL_SYNC	_IOW(DMA_BUF_BASE, 0, struct dma_buf_sync)#define DMA_BUF_SET_NAME	_IOW(DMA_BUF_BASE, 1, const char *) #endif