mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 19:45:22 +07:00
4ebeb1ec56
After a Function-Level Reset, PCI states need to be restored. Save PASID features and PRI reqs cached. [bhelgaas: search for capability only if PRI/PASID were enabled] Signed-off-by: CQ Tang <cq.tang@intel.com> Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Jean-Phillipe Brucker <jean-philippe.brucker@arm.com> Cc: David Woodhouse <dwmw2@infradead.org>
72 lines
1.3 KiB
C
72 lines
1.3 KiB
C
#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);
|
|
|
|
#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;
|
|
}
|
|
|
|
#endif /* CONFIG_PCI_PASID */
|
|
|
|
|
|
#endif /* LINUX_PCI_ATS_H*/
|