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Merge branch 'pci/iommu' into next

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* pci/iommu:
  PCI: Add bridge DMA alias quirk for ASMedia and Tundra bridges
  PCI: Add support for PCIe-to-PCI bridge DMA alias quirks
  PCI: Add function 1 DMA alias quirk for Marvell devices
  PCI: Add function 0 DMA alias quirk for Ricoh devices
  PCI: Add support for DMA alias quirks
  PCI: Convert pci_dev_flags definitions to bit shifts
  PCI: Add DMA alias iterator
This commit is contained in:
Bjorn Helgaas
2014-06-02 16:18:48 -06:00
parent 617b4157a5 ebdb51eb78
commit 0eeb4f2af5
3 changed files with 175 additions and 4 deletions
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include/linux/pci.h
+13 -4
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@@ -164,13 +164,17 @@ enum pci_dev_flags {
/* INTX_DISABLE in PCI_COMMAND register disables MSI
* generation too.
*/
PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG = (__force pci_dev_flags_t) 1,
PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG = (__force pci_dev_flags_t) (1 << 0),
/* Device configuration is irrevocably lost if disabled into D3 */
PCI_DEV_FLAGS_NO_D3 = (__force pci_dev_flags_t) 2,
PCI_DEV_FLAGS_NO_D3 = (__force pci_dev_flags_t) (1 << 1),
/* Provide indication device is assigned by a Virtual Machine Manager */
PCI_DEV_FLAGS_ASSIGNED = (__force pci_dev_flags_t) 4,
PCI_DEV_FLAGS_ASSIGNED = (__force pci_dev_flags_t) (1 << 2),
/* Flag for quirk use to store if quirk-specific ACS is enabled */
PCI_DEV_FLAGS_ACS_ENABLED_QUIRK = (__force pci_dev_flags_t) 8,
PCI_DEV_FLAGS_ACS_ENABLED_QUIRK = (__force pci_dev_flags_t) (1 << 3),
/* Flag to indicate the device uses dma_alias_devfn */
PCI_DEV_FLAGS_DMA_ALIAS_DEVFN = (__force pci_dev_flags_t) (1 << 4),
/* Use a PCIe-to-PCI bridge alias even if !pci_is_pcie */
PCI_DEV_FLAG_PCIE_BRIDGE_ALIAS = (__force pci_dev_flags_t) (1 << 5),
};
enum pci_irq_reroute_variant {
@@ -268,6 +272,7 @@ struct pci_dev {
u8 rom_base_reg; /* which config register controls the ROM */
u8 pin; /* which interrupt pin this device uses */
u16 pcie_flags_reg; /* cached PCIe Capabilities Register */
u8 dma_alias_devfn;/* devfn of DMA alias, if any */
struct pci_driver *driver; /* which driver has allocated this device */
u64 dma_mask; /* Mask of the bits of bus address this
@@ -1809,6 +1814,10 @@ static inline struct eeh_dev *pci_dev_to_eeh_dev(struct pci_dev *pdev)
}
#endif
int pci_for_each_dma_alias(struct pci_dev *pdev,
int (*fn)(struct pci_dev *pdev,
u16 alias, void *data), void *data);
/**
* pci_find_upstream_pcie_bridge - find upstream PCIe-to-PCI bridge of a device
* @pdev: the PCI device