include/linux/pci-ats.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef LINUX_PCI_ATS_H
   3 #define LINUX_PCI_ATS_H
   4
   5 #include <linux/pci.h>
   6
   7 #ifdef CONFIG_PCI_PRI
   8
   9 int pci_enable_pri(struct pci_dev *pdev, u32 reqs);
  10 void pci_disable_pri(struct pci_dev *pdev);
  11 void pci_restore_pri_state(struct pci_dev *pdev);
  12 int pci_reset_pri(struct pci_dev *pdev);
  13
  14 #else /* CONFIG_PCI_PRI */
  15
  16 static inline int pci_enable_pri(struct pci_dev *pdev, u32 reqs)
  17 {
  18         return -ENODEV;
  19 }
  20
  21 static inline void pci_disable_pri(struct pci_dev *pdev)
  22 {
  23 }
  24
  25 static inline void pci_restore_pri_state(struct pci_dev *pdev)
  26 {
  27 }
  28
  29 static inline int pci_reset_pri(struct pci_dev *pdev)
  30 {
  31         return -ENODEV;
  32 }
  33
  34 #endif /* CONFIG_PCI_PRI */
  35
  36 #ifdef CONFIG_PCI_PASID
  37
  38 int pci_enable_pasid(struct pci_dev *pdev, int features);
  39 void pci_disable_pasid(struct pci_dev *pdev);
  40 void pci_restore_pasid_state(struct pci_dev *pdev);
  41 int pci_pasid_features(struct pci_dev *pdev);
  42 int pci_max_pasids(struct pci_dev *pdev);
  43
  44 #else  /* CONFIG_PCI_PASID */
  45
  46 static inline int pci_enable_pasid(struct pci_dev *pdev, int features)
  47 {
  48         return -EINVAL;
  49 }
  50
  51 static inline void pci_disable_pasid(struct pci_dev *pdev)
  52 {
  53 }
  54
  55 static inline void pci_restore_pasid_state(struct pci_dev *pdev)
  56 {
  57 }
  58
  59 static inline int pci_pasid_features(struct pci_dev *pdev)
  60 {
  61         return -EINVAL;
  62 }
  63
  64 static inline int pci_max_pasids(struct pci_dev *pdev)
  65 {
  66         return -EINVAL;
  67 }
  68
  69 #endif /* CONFIG_PCI_PASID */
  70
  71
  72 #endif /* LINUX_PCI_ATS_H*/