mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-15 07:16:39 +07:00
b340cacc1b
My philosophy is unused code is dead code. And dead code is subject to bit
rot and is a likely source of bugs. Use it or lose it.
This reverts parts of c320b976d7 ("PCI: Add implementation for PRI
capability"), removing these interfaces:
pci_pri_enabled()
pci_pri_stopped()
pci_pri_status()
[bhelgaas: split to separate patch]
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Joerg Roedel <joro@8bytes.org>
111 lines
2.1 KiB
C
111 lines
2.1 KiB
C
#ifndef LINUX_PCI_ATS_H
|
|
#define LINUX_PCI_ATS_H
|
|
|
|
#include <linux/pci.h>
|
|
|
|
/* Address Translation Service */
|
|
struct pci_ats {
|
|
int pos; /* capability position */
|
|
int stu; /* Smallest Translation Unit */
|
|
int qdep; /* Invalidate Queue Depth */
|
|
int ref_cnt; /* Physical Function reference count */
|
|
unsigned int is_enabled:1; /* Enable bit is set */
|
|
};
|
|
|
|
#ifdef CONFIG_PCI_ATS
|
|
|
|
int pci_enable_ats(struct pci_dev *dev, int ps);
|
|
void pci_disable_ats(struct pci_dev *dev);
|
|
int pci_ats_queue_depth(struct pci_dev *dev);
|
|
|
|
/**
|
|
* pci_ats_enabled - query the ATS status
|
|
* @dev: the PCI device
|
|
*
|
|
* Returns 1 if ATS capability is enabled, or 0 if not.
|
|
*/
|
|
static inline int pci_ats_enabled(struct pci_dev *dev)
|
|
{
|
|
return dev->ats && dev->ats->is_enabled;
|
|
}
|
|
|
|
#else /* CONFIG_PCI_ATS */
|
|
|
|
static inline int pci_enable_ats(struct pci_dev *dev, int ps)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
static inline void pci_disable_ats(struct pci_dev *dev)
|
|
{
|
|
}
|
|
|
|
static inline int pci_ats_queue_depth(struct pci_dev *dev)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
static inline int pci_ats_enabled(struct pci_dev *dev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_PCI_ATS */
|
|
|
|
#ifdef CONFIG_PCI_PRI
|
|
|
|
int pci_enable_pri(struct pci_dev *pdev, u32 reqs);
|
|
void pci_disable_pri(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 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);
|
|
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 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*/
|