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| Commit | Line | Data |
|---|---|---|
| 5cdede24 JR |
1 | #ifndef LINUX_PCI_ATS_H |
| 2 | #define LINUX_PCI_ATS_H | |
| 3 | ||
| db3c33c6 JR |
4 | #include <linux/pci.h> |
| 5 | ||
| 5cdede24 JR |
6 | /* Address Translation Service */ |
| 7 | struct pci_ats { | |
| 8 | int pos; /* capability position */ | |
| 9 | int stu; /* Smallest Translation Unit */ | |
| 10 | int qdep; /* Invalidate Queue Depth */ | |
| 11 | int ref_cnt; /* Physical Function reference count */ | |
| 12 | unsigned int is_enabled:1; /* Enable bit is set */ | |
| 13 | }; | |
| 14 | ||
| 466b3ddf | 15 | #ifdef CONFIG_PCI_ATS |
| 5cdede24 | 16 | |
| f39d5b72 BH |
17 | int pci_enable_ats(struct pci_dev *dev, int ps); |
| 18 | void pci_disable_ats(struct pci_dev *dev); | |
| 19 | int pci_ats_queue_depth(struct pci_dev *dev); | |
| c320b976 | 20 | |
| 5cdede24 JR |
21 | /** |
| 22 | * pci_ats_enabled - query the ATS status | |
| 23 | * @dev: the PCI device | |
| 24 | * | |
| 25 | * Returns 1 if ATS capability is enabled, or 0 if not. | |
| 26 | */ | |
| 27 | static inline int pci_ats_enabled(struct pci_dev *dev) | |
| 28 | { | |
| 29 | return dev->ats && dev->ats->is_enabled; | |
| 30 | } | |
| 31 | ||
| 466b3ddf | 32 | #else /* CONFIG_PCI_ATS */ |
| 5cdede24 JR |
33 | |
| 34 | static inline int pci_enable_ats(struct pci_dev *dev, int ps) | |
| 35 | { | |
| 36 | return -ENODEV; | |
| 37 | } | |
| 38 | ||
| 39 | static inline void pci_disable_ats(struct pci_dev *dev) | |
| 40 | { | |
| 41 | } | |
| 42 | ||
| 43 | static inline int pci_ats_queue_depth(struct pci_dev *dev) | |
| 44 | { | |
| 45 | return -ENODEV; | |
| 46 | } | |
| 47 | ||
| 48 | static inline int pci_ats_enabled(struct pci_dev *dev) | |
| 49 | { | |
| 50 | return 0; | |
| 51 | } | |
| 52 | ||
| 466b3ddf | 53 | #endif /* CONFIG_PCI_ATS */ |
| 5cdede24 | 54 | |
| c320b976 JR |
55 | #ifdef CONFIG_PCI_PRI |
| 56 | ||
| f39d5b72 BH |
57 | int pci_enable_pri(struct pci_dev *pdev, u32 reqs); |
| 58 | void pci_disable_pri(struct pci_dev *pdev); | |
| f39d5b72 | 59 | int pci_reset_pri(struct pci_dev *pdev); |
| c320b976 JR |
60 | |
| 61 | #else /* CONFIG_PCI_PRI */ | |
| 62 | ||
| 63 | static inline int pci_enable_pri(struct pci_dev *pdev, u32 reqs) | |
| 64 | { | |
| 65 | return -ENODEV; | |
| 66 | } | |
| 67 | ||
| 68 | static inline void pci_disable_pri(struct pci_dev *pdev) | |
| 69 | { | |
| 70 | } | |
| 71 | ||
| c320b976 JR |
72 | static inline int pci_reset_pri(struct pci_dev *pdev) |
| 73 | { | |
| 74 | return -ENODEV; | |
| 75 | } | |
| 76 | ||
| c320b976 JR |
77 | #endif /* CONFIG_PCI_PRI */ |
| 78 | ||
| 086ac11f JR |
79 | #ifdef CONFIG_PCI_PASID |
| 80 | ||
| f39d5b72 BH |
81 | int pci_enable_pasid(struct pci_dev *pdev, int features); |
| 82 | void pci_disable_pasid(struct pci_dev *pdev); | |
| 83 | int pci_pasid_features(struct pci_dev *pdev); | |
| 84 | int pci_max_pasids(struct pci_dev *pdev); | |
| 086ac11f JR |
85 | |
| 86 | #else /* CONFIG_PCI_PASID */ | |
| 87 | ||
| 88 | static inline int pci_enable_pasid(struct pci_dev *pdev, int features) | |
| 89 | { | |
| 90 | return -EINVAL; | |
| 91 | } | |
| 92 | ||
| 93 | static inline void pci_disable_pasid(struct pci_dev *pdev) | |
| 94 | { | |
| 95 | } | |
| 96 | ||
| 97 | static inline int pci_pasid_features(struct pci_dev *pdev) | |
| 98 | { | |
| 99 | return -EINVAL; | |
| 100 | } | |
| 101 | ||
| 102 | static inline int pci_max_pasids(struct pci_dev *pdev) | |
| 103 | { | |
| 104 | return -EINVAL; | |
| 105 | } | |
| 106 | ||
| 107 | #endif /* CONFIG_PCI_PASID */ | |
| 108 | ||
| 109 | ||
| 5cdede24 | 110 | #endif /* LINUX_PCI_ATS_H*/ |