/*
 * Copyright (c) 2017, NVIDIA CORPORATION.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope 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 __NVGPU_LINUX_DMA_H__
#define __NVGPU_LINUX_DMA_H__

/**
 * Functions used internally for building the backing SGTs for nvgpu_mems.
 */

int nvgpu_get_sgtable(struct gk20a *g, struct sg_table **sgt,
		      void *cpuva, u64 iova,
		      size_t size);

int nvgpu_get_sgtable_from_pages(struct gk20a *g, struct sg_table **sgt,
				 struct page **pages, u64 iova,
				 size_t size);

void nvgpu_free_sgtable(struct gk20a *g, struct sg_table **sgt);

#endif
