1/* SPDX-License-Identifier: GPL-2.0 */ 2/* Copyright (C) 2018 Intel Corporation */ 3/* Copyright 2018 Google LLC. */ 4 5#ifndef __IPU3_MMU_H 6#define __IPU3_MMU_H 7 8#define IPU3_PAGE_SHIFT 12 9#define IPU3_PAGE_SIZE (1UL << IPU3_PAGE_SHIFT) 10 11/** 12 * struct imgu_mmu_info - Describes mmu geometry 13 * 14 * @aperture_start: First address that can be mapped 15 * @aperture_end: Last address that can be mapped 16 */ 17struct imgu_mmu_info { 18 dma_addr_t aperture_start; 19 dma_addr_t aperture_end; 20}; 21 22struct device; 23struct scatterlist; 24 25struct imgu_mmu_info *imgu_mmu_init(struct device *parent, void __iomem *base); 26void imgu_mmu_exit(struct imgu_mmu_info *info); 27void imgu_mmu_suspend(struct imgu_mmu_info *info); 28void imgu_mmu_resume(struct imgu_mmu_info *info); 29 30int imgu_mmu_map(struct imgu_mmu_info *info, unsigned long iova, 31 phys_addr_t paddr, size_t size); 32size_t imgu_mmu_unmap(struct imgu_mmu_info *info, unsigned long iova, 33 size_t size); 34size_t imgu_mmu_map_sg(struct imgu_mmu_info *info, unsigned long iova, 35 struct scatterlist *sg, unsigned int nents); 36#endif 37