forked from mirrors/linux
b77cf11f09
Move io-pgtable.h to include/linux/ and export alloc_io_pgtable_ops and free_io_pgtable_ops. This enables drivers outside drivers/iommu/ to use the page table library. Specifically, some ARM Mali GPUs use the ARM page table formats. Cc: Will Deacon <will.deacon@arm.com> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Rob Clark <robdclark@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: iommu@lists.linux-foundation.org Cc: linux-mediatek@lists.infradead.org Cc: linux-arm-msm@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Joerg Roedel <jroedel@suse.de>
88 lines
2 KiB
C
88 lines
2 KiB
C
/*
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* Copyright (c) 2015-2016 MediaTek Inc.
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* Author: Honghui Zhang <honghui.zhang@mediatek.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _MTK_IOMMU_H_
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#define _MTK_IOMMU_H_
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#include <linux/clk.h>
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#include <linux/component.h>
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#include <linux/device.h>
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#include <linux/io.h>
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#include <linux/io-pgtable.h>
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#include <linux/iommu.h>
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#include <linux/list.h>
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#include <linux/spinlock.h>
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#include <soc/mediatek/smi.h>
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struct mtk_iommu_suspend_reg {
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u32 standard_axi_mode;
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u32 dcm_dis;
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u32 ctrl_reg;
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u32 int_control0;
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u32 int_main_control;
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u32 ivrp_paddr;
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};
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enum mtk_iommu_plat {
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M4U_MT2701,
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M4U_MT2712,
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M4U_MT8173,
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};
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struct mtk_iommu_domain;
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struct mtk_iommu_data {
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void __iomem *base;
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int irq;
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struct device *dev;
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struct clk *bclk;
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phys_addr_t protect_base; /* protect memory base */
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struct mtk_iommu_suspend_reg reg;
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struct mtk_iommu_domain *m4u_dom;
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struct iommu_group *m4u_group;
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struct mtk_smi_iommu smi_imu; /* SMI larb iommu info */
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bool enable_4GB;
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bool tlb_flush_active;
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struct iommu_device iommu;
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enum mtk_iommu_plat m4u_plat;
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struct list_head list;
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};
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static inline int compare_of(struct device *dev, void *data)
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{
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return dev->of_node == data;
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}
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static inline void release_of(struct device *dev, void *data)
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{
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of_node_put(data);
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}
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static inline int mtk_iommu_bind(struct device *dev)
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{
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struct mtk_iommu_data *data = dev_get_drvdata(dev);
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return component_bind_all(dev, &data->smi_imu);
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}
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static inline void mtk_iommu_unbind(struct device *dev)
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{
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struct mtk_iommu_data *data = dev_get_drvdata(dev);
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component_unbind_all(dev, &data->smi_imu);
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}
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#endif
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