zhangzl7
1dca9978e3
Improvements made to ION to add an additional debugfs file to display allocation/reference information for all ION buffers. Change-Id: Ife122fb3357c549ce962e7b7ead8d2447d352885 Signed-off-by: zhangzl7 <zhangzl7@lenovo.com> Reviewed-on: https://gerrit.mot.com/1535657 SLTApproved: Slta Waiver SME-Granted: SME Approvals Granted Tested-by: Jira Key Reviewed-by: Zhenxin Xi <xizx@motorola.com> Submit-Approved: Jira Key
48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Framework for buffer objects that can be shared across devices/subsystems.
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*
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* Copyright(C) 2015 Intel Ltd
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _DMA_BUF_UAPI_H_
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#define _DMA_BUF_UAPI_H_
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#include <linux/types.h>
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/* begin/end dma-buf functions used for userspace mmap. */
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struct dma_buf_sync {
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__u64 flags;
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};
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#define DMA_BUF_SYNC_READ (1 << 0)
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#define DMA_BUF_SYNC_WRITE (2 << 0)
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#define DMA_BUF_SYNC_RW (DMA_BUF_SYNC_READ | DMA_BUF_SYNC_WRITE)
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#define DMA_BUF_SYNC_START (0 << 2)
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#define DMA_BUF_SYNC_END (1 << 2)
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#define DMA_BUF_SYNC_USER_MAPPED (1 << 3)
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#define DMA_BUF_SYNC_VALID_FLAGS_MASK \
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(DMA_BUF_SYNC_RW | DMA_BUF_SYNC_END | DMA_BUF_SYNC_USER_MAPPED)
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#define DMA_BUF_NAME_LEN 32
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#define DMA_BUF_BASE 'b'
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#define DMA_BUF_IOCTL_SYNC _IOW(DMA_BUF_BASE, 0, struct dma_buf_sync)
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#define DMA_BUF_SET_NAME _IOW(DMA_BUF_BASE, 1, const char *)
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#define DMA_BUF_IOCTL_IMPORT_BUF_ADD_BY_MOTO _IO(DMA_BUF_BASE, 0xCC)
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#endif
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