mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 15:13:55 +08:00
466b3ddfbc
The ats and sroiv members of 'struct pci_dev' are required for the ATS code already, even without IOV support compiled in. So depend on ATS here. This is fine with PCI_IOV too because it selects PCI_ATS. Also the prototypes for ATS need to be available for PCI_ATS. Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
128 lines
2.6 KiB
C
128 lines
2.6 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
|
|
|
|
extern int pci_enable_ats(struct pci_dev *dev, int ps);
|
|
extern void pci_disable_ats(struct pci_dev *dev);
|
|
extern 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
|
|
|
|
extern int pci_enable_pri(struct pci_dev *pdev, u32 reqs);
|
|
extern void pci_disable_pri(struct pci_dev *pdev);
|
|
extern bool pci_pri_enabled(struct pci_dev *pdev);
|
|
extern int pci_reset_pri(struct pci_dev *pdev);
|
|
extern bool pci_pri_stopped(struct pci_dev *pdev);
|
|
extern int pci_pri_status(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 bool pci_pri_enabled(struct pci_dev *pdev)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline int pci_reset_pri(struct pci_dev *pdev)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
static inline bool pci_pri_stopped(struct pci_dev *pdev)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static inline int pci_pri_status(struct pci_dev *pdev)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
#endif /* CONFIG_PCI_PRI */
|
|
|
|
#ifdef CONFIG_PCI_PASID
|
|
|
|
extern int pci_enable_pasid(struct pci_dev *pdev, int features);
|
|
extern void pci_disable_pasid(struct pci_dev *pdev);
|
|
extern int pci_pasid_features(struct pci_dev *pdev);
|
|
extern 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*/
|