Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2014-2015 ARM Ltd.
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*/
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#ifndef __DMA_IOMMU_H
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#define __DMA_IOMMU_H
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#include <linux/iommu.h>
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#ifdef CONFIG_IOMMU_DMA
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void iommu_setup_dma_ops(struct device *dev);
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int iommu_get_dma_cookie(struct iommu_domain *domain);
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void iommu_put_dma_cookie(struct iommu_domain *domain);
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void iommu_put_msi_cookie(struct iommu_domain *domain);
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int iommu_dma_init_fq(struct iommu_domain *domain);
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void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list);
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int iommu_dma_sw_msi(struct iommu_domain *domain, struct msi_desc *desc,
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phys_addr_t msi_addr);
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extern bool iommu_dma_forcedac;
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#else /* CONFIG_IOMMU_DMA */
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static inline void iommu_setup_dma_ops(struct device *dev)
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{
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}
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static inline int iommu_dma_init_fq(struct iommu_domain *domain)
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{
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return -EINVAL;
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}
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static inline int iommu_get_dma_cookie(struct iommu_domain *domain)
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{
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return -ENODEV;
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}
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static inline void iommu_put_dma_cookie(struct iommu_domain *domain)
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{
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}
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static inline void iommu_put_msi_cookie(struct iommu_domain *domain)
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{
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}
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static inline void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list)
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{
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}
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static inline int iommu_dma_sw_msi(struct iommu_domain *domain,
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struct msi_desc *desc, phys_addr_t msi_addr)
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{
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return -ENODEV;
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}
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#endif /* CONFIG_IOMMU_DMA */
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#endif /* __DMA_IOMMU_H */
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