5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
/* 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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