30 lines
630 B
C
30 lines
630 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2021 Rockchip Electronics Co., Ltd
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*/
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#ifndef __SOC_ROCKCHIP_IOMMU_H
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#define __SOC_ROCKCHIP_IOMMU_H
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struct device;
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#if IS_ENABLED(CONFIG_ROCKCHIP_IOMMU)
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int rockchip_iommu_enable(struct device *dev);
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int rockchip_iommu_disable(struct device *dev);
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bool rockchip_iommu_is_enabled(struct device *dev);
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#else
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static inline int rockchip_iommu_enable(struct device *dev)
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{
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return -ENODEV;
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}
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static inline int rockchip_iommu_disable(struct device *dev)
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{
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return -ENODEV;
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}
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static inline bool rockchip_iommu_is_enabled(struct device *dev)
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{
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return false;
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}
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#endif
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#endif
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