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-rw-r--r--include/nvgpu/linux/dma.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/include/nvgpu/linux/dma.h b/include/nvgpu/linux/dma.h
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1/*
2 * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16
17#ifndef __NVGPU_LINUX_DMA_H__
18#define __NVGPU_LINUX_DMA_H__
19
20/**
21 * Functions used internally for building the backing SGTs for nvgpu_mems.
22 */
23
24
25int nvgpu_get_sgtable_attrs(struct gk20a *g, struct sg_table **sgt,
26 void *cpuva, u64 iova,
27 size_t size, unsigned long flags);
28
29int nvgpu_get_sgtable(struct gk20a *g, struct sg_table **sgt,
30 void *cpuva, u64 iova, size_t size);
31
32int nvgpu_get_sgtable_from_pages(struct gk20a *g, struct sg_table **sgt,
33 struct page **pages, u64 iova,
34 size_t size);
35
36void nvgpu_free_sgtable(struct gk20a *g, struct sg_table **sgt);
37
38#endif