Eric Lee / smarc-fsl-linux-kernel

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include/linux/pci-ats.h 1.52 KB
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d7d243b52   Eric Lee   SMARC-iMX8MQ Linu... 
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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_PRI
  
  int pci_enable_pri(struct pci_dev *pdev, u32 reqs);
  void pci_disable_pri(struct pci_dev *pdev);
  void pci_restore_pri_state(struct pci_dev *pdev);
  int pci_reset_pri(struct pci_dev *pdev);
  
  #else /* CONFIG_PCI_PRI */
  
  static inline int pci_enable_pri(struct pci_dev *pdev, u32 reqs)
  {
  	return -ENODEV;
  }
  
  static inline void pci_disable_pri(struct pci_dev *pdev)
  {
  }
  
  static inline void pci_restore_pri_state(struct pci_dev *pdev)
  {
  }
  
  static inline int pci_reset_pri(struct pci_dev *pdev)
  {
  	return -ENODEV;
  }
  
  #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);
  void pci_restore_pasid_state(struct pci_dev *pdev);
  int pci_pasid_features(struct pci_dev *pdev);
  int pci_max_pasids(struct pci_dev *pdev);
  int pci_prg_resp_pasid_required(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 void pci_restore_pasid_state(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;
  }
  
  static inline int pci_prg_resp_pasid_required(struct pci_dev *pdev)
  {
  	return 0;
  }
  #endif /* CONFIG_PCI_PASID */
  
  
  #endif /* LINUX_PCI_ATS_H*/