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https://github.com/torvalds/linux
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d81aecb5e6
This patch changes file license to GPL Most of exynos files had been copied from some random file and not updated correctly. So this patch corrects the file license. Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/* exynos_drm_iommu.h
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*
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* Copyright (c) 2012 Samsung Electronics Co., Ltd.
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* Authoer: Inki Dae <inki.dae@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef _EXYNOS_DRM_IOMMU_H_
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#define _EXYNOS_DRM_IOMMU_H_
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#define EXYNOS_DEV_ADDR_START 0x20000000
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#define EXYNOS_DEV_ADDR_SIZE 0x40000000
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#define EXYNOS_DEV_ADDR_ORDER 0x4
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#ifdef CONFIG_DRM_EXYNOS_IOMMU
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int drm_create_iommu_mapping(struct drm_device *drm_dev);
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void drm_release_iommu_mapping(struct drm_device *drm_dev);
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int drm_iommu_attach_device(struct drm_device *drm_dev,
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struct device *subdrv_dev);
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void drm_iommu_detach_device(struct drm_device *dev_dev,
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struct device *subdrv_dev);
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static inline bool is_drm_iommu_supported(struct drm_device *drm_dev)
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{
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#ifdef CONFIG_ARM_DMA_USE_IOMMU
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struct device *dev = drm_dev->dev;
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return dev->archdata.mapping ? true : false;
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#else
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return false;
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#endif
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}
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#else
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struct dma_iommu_mapping;
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static inline int drm_create_iommu_mapping(struct drm_device *drm_dev)
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{
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return 0;
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}
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static inline void drm_release_iommu_mapping(struct drm_device *drm_dev)
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{
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}
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static inline int drm_iommu_attach_device(struct drm_device *drm_dev,
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struct device *subdrv_dev)
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{
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return 0;
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}
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static inline void drm_iommu_detach_device(struct drm_device *drm_dev,
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struct device *subdrv_dev)
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{
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}
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static inline bool is_drm_iommu_supported(struct drm_device *drm_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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