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