linux-imx

/*

 * Copyright (c) 2015-2016 MediaTek Inc.

 * Author: Honghui Zhang <honghui.zhang@mediatek.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 * This program is distributed in the hope that 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.

 */

​

#ifndef _MTK_IOMMU_H_

#define _MTK_IOMMU_H_

​

#include <linux/clk.h>

#include <linux/component.h>

#include <linux/device.h>

#include <linux/io.h>

#include <linux/io-pgtable.h>

#include <linux/iommu.h>

#include <linux/list.h>

#include <linux/spinlock.h>

#include <soc/mediatek/smi.h>

​

struct mtk_iommu_suspend_reg {

    u32             standard_axi_mode;

    u32             dcm_dis;

    u32             ctrl_reg;

    u32             int_control0;

    u32             int_main_control;

    u32             ivrp_paddr;

};

​

enum mtk_iommu_plat {

    M4U_MT2701,

    M4U_MT2712,

    M4U_MT8173,

};

​

struct mtk_iommu_domain;

​

struct mtk_iommu_data {

    void __iomem            *base;

    int             irq;

    struct device           *dev;

    struct clk          *bclk;

    phys_addr_t         protect_base; /* protect memory base */

    struct mtk_iommu_suspend_reg    reg;

    struct mtk_iommu_domain     *m4u_dom;

    struct iommu_group      *m4u_group;

    struct mtk_smi_iommu        smi_imu;      /* SMI larb iommu info */

    bool                            enable_4GB;

    bool                tlb_flush_active;

​

    struct iommu_device     iommu;

    enum mtk_iommu_plat     m4u_plat;

​

    struct list_head        list;

};

​