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/*
* 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_GMMU_H__
#define __NVGPU_GMMU_H__
#include <nvgpu/types.h>
/*
* This is the GMMU API visible to blocks outside of the GMMU. Basically this
* API supports all the different types of mappings that might be done in the
* GMMU.
*/
struct vm_gk20a;
struct nvgpu_mem;
enum nvgpu_aperture;
/**
* nvgpu_gmmu_map - Map memory into the GMMU.
*
* Kernel space.
*/
u64 nvgpu_gmmu_map(struct vm_gk20a *vm,
struct nvgpu_mem *mem,
u64 size,
u32 flags,
int rw_flag,
bool priv,
enum nvgpu_aperture aperture);
/**
* nvgpu_gmmu_map_fixed - Map memory into the GMMU.
*
* Kernel space.
*/
u64 nvgpu_gmmu_map_fixed(struct vm_gk20a *vm,
struct nvgpu_mem *mem,
u64 addr,
u64 size,
u32 flags,
int rw_flag,
bool priv,
enum nvgpu_aperture aperture);
/**
* nvgpu_gmmu_unmap - Unmap a buffer.
*
* Kernel space.
*/
void nvgpu_gmmu_unmap(struct vm_gk20a *vm,
struct nvgpu_mem *mem,
u64 gpu_va);
#endif
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