diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-22 21:38:22 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-22 21:38:22 -0700 |
commit | 687d680985b1438360a9ba470ece8b57cd205c3b (patch) | |
tree | ae253608531e5c3e823600974c610e722e7de759 /drivers/pci/pci.h | |
parent | 1053414068bad659479e6efa62a67403b8b1ec0a (diff) | |
parent | 008fe148cb0fb51d266baabe2c09997b21cf90c6 (diff) |
Merge git://git.infradead.org/~dwmw2/iommu-2.6.31
* git://git.infradead.org/~dwmw2/iommu-2.6.31:
intel-iommu: Fix one last ia64 build problem in Pass Through Support
VT-d: support the device IOTLB
VT-d: cleanup iommu_flush_iotlb_psi and flush_unmaps
VT-d: add device IOTLB invalidation support
VT-d: parse ATSR in DMA Remapping Reporting Structure
PCI: handle Virtual Function ATS enabling
PCI: support the ATS capability
intel-iommu: dmar_set_interrupt return error value
intel-iommu: Tidy up iommu->gcmd handling
intel-iommu: Fix tiny theoretical race in write-buffer flush.
intel-iommu: Clean up handling of "caching mode" vs. IOTLB flushing.
intel-iommu: Clean up handling of "caching mode" vs. context flushing.
VT-d: fix invalid domain id for KVM context flush
Fix !CONFIG_DMAR build failure introduced by Intel IOMMU Pass Through Support
Intel IOMMU Pass Through Support
Fix up trivial conflicts in drivers/pci/{intel-iommu.c,intr_remapping.c}
Diffstat (limited to 'drivers/pci/pci.h')
-rw-r--r-- | drivers/pci/pci.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index d03f6b99f29..f73bcbedf37 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -229,6 +229,15 @@ struct pci_sriov { u8 __iomem *mstate; /* VF Migration State Array */ }; +/* 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 */ + int is_enabled:1; /* Enable bit is set */ +}; + #ifdef CONFIG_PCI_IOV extern int pci_iov_init(struct pci_dev *dev); extern void pci_iov_release(struct pci_dev *dev); @@ -236,6 +245,20 @@ extern int pci_iov_resource_bar(struct pci_dev *dev, int resno, enum pci_bar_type *type); extern void pci_restore_iov_state(struct pci_dev *dev); extern int pci_iov_bus_range(struct pci_bus *bus); + +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 static inline int pci_iov_init(struct pci_dev *dev) { @@ -257,6 +280,22 @@ static inline int pci_iov_bus_range(struct pci_bus *bus) { return 0; } + +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_IOV */ #endif /* DRIVERS_PCI_H */ |