| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| /* |
| * |
| * (C) COPYRIGHT 2012, 2020-2021 ARM Limited. All rights reserved. |
| * |
| * This program is free software and is provided to you under the terms of the |
| * GNU General Public License version 2 as published by the Free Software |
| * Foundation, and any use by you of this program is subject to the terms |
| * of such GNU license. |
| * |
| * 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, you can access it online at |
| * http://www.gnu.org/licenses/gpl-2.0.html. |
| * |
| */ |
| |
| #ifndef _DMA_BUF_LOCK_H |
| #define _DMA_BUF_LOCK_H |
| |
| enum dma_buf_lock_exclusive { |
| DMA_BUF_LOCK_NONEXCLUSIVE = 0, |
| DMA_BUF_LOCK_EXCLUSIVE = -1 |
| }; |
| |
| struct dma_buf_lock_k_request { |
| int count; |
| int *list_of_dma_buf_fds; |
| int timeout; |
| enum dma_buf_lock_exclusive exclusive; |
| }; |
| |
| #define DMA_BUF_LOCK_IOC_MAGIC '~' |
| |
| #define DMA_BUF_LOCK_FUNC_LOCK_ASYNC _IOW(DMA_BUF_LOCK_IOC_MAGIC, 11, struct dma_buf_lock_k_request) |
| |
| #define DMA_BUF_LOCK_IOC_MINNR 11 |
| #define DMA_BUF_LOCK_IOC_MAXNR 11 |
| |
| #endif /* _DMA_BUF_LOCK_H */ |
