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52 lines
1.8 KiB
52 lines
1.8 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef LINUX_PCI_ATS_H |
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#define LINUX_PCI_ATS_H |
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#include <linux/pci.h> |
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#ifdef CONFIG_PCI_ATS |
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/* Address Translation Service */ |
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bool pci_ats_supported(struct pci_dev *dev); |
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int pci_enable_ats(struct pci_dev *dev, int ps); |
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void pci_disable_ats(struct pci_dev *dev); |
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int pci_ats_queue_depth(struct pci_dev *dev); |
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int pci_ats_page_aligned(struct pci_dev *dev); |
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#else /* CONFIG_PCI_ATS */ |
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static inline bool pci_ats_supported(struct pci_dev *d) |
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{ return false; } |
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static inline int pci_enable_ats(struct pci_dev *d, int ps) |
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{ return -ENODEV; } |
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static inline void pci_disable_ats(struct pci_dev *d) { } |
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static inline int pci_ats_queue_depth(struct pci_dev *d) |
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{ return -ENODEV; } |
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static inline int pci_ats_page_aligned(struct pci_dev *dev) |
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{ return 0; } |
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#endif /* CONFIG_PCI_ATS */ |
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#ifdef CONFIG_PCI_PRI |
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int pci_enable_pri(struct pci_dev *pdev, u32 reqs); |
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void pci_disable_pri(struct pci_dev *pdev); |
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int pci_reset_pri(struct pci_dev *pdev); |
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int pci_prg_resp_pasid_required(struct pci_dev *pdev); |
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bool pci_pri_supported(struct pci_dev *pdev); |
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#else |
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static inline bool pci_pri_supported(struct pci_dev *pdev) |
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{ return false; } |
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#endif /* CONFIG_PCI_PRI */ |
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#ifdef CONFIG_PCI_PASID |
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int pci_enable_pasid(struct pci_dev *pdev, int features); |
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void pci_disable_pasid(struct pci_dev *pdev); |
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int pci_pasid_features(struct pci_dev *pdev); |
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int pci_max_pasids(struct pci_dev *pdev); |
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#else /* CONFIG_PCI_PASID */ |
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static inline int pci_enable_pasid(struct pci_dev *pdev, int features) |
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{ return -EINVAL; } |
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static inline void pci_disable_pasid(struct pci_dev *pdev) { } |
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static inline int pci_pasid_features(struct pci_dev *pdev) |
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{ return -EINVAL; } |
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static inline int pci_max_pasids(struct pci_dev *pdev) |
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{ return -EINVAL; } |
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#endif /* CONFIG_PCI_PASID */ |
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#endif /* LINUX_PCI_ATS_H */
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