diff options
Diffstat (limited to 'drivers/pci/pci-bridge-emul.h')
| -rw-r--r-- | drivers/pci/pci-bridge-emul.h | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/drivers/pci/pci-bridge-emul.h b/drivers/pci/pci-bridge-emul.h index 49bbd37ee318..71392b67471d 100644 --- a/drivers/pci/pci-bridge-emul.h +++ b/drivers/pci/pci-bridge-emul.h @@ -90,6 +90,14 @@ struct pci_bridge_emul_ops { */ pci_bridge_emul_read_status_t (*read_pcie)(struct pci_bridge_emul *bridge, int reg, u32 *value); + + /* + * Same as ->read_base(), except it is for reading from the + * PCIe extended capability configuration space. + */ + pci_bridge_emul_read_status_t (*read_ext)(struct pci_bridge_emul *bridge, + int reg, u32 *value); + /* * Called when writing to the regular PCI bridge configuration * space. old is the current value, new is the new value being @@ -105,6 +113,13 @@ struct pci_bridge_emul_ops { */ void (*write_pcie)(struct pci_bridge_emul *bridge, int reg, u32 old, u32 new, u32 mask); + + /* + * Same as ->write_base(), except it is for writing from the + * PCIe extended capability configuration space. + */ + void (*write_ext)(struct pci_bridge_emul *bridge, int reg, + u32 old, u32 new, u32 mask); }; struct pci_bridge_reg_behavior; @@ -112,15 +127,27 @@ struct pci_bridge_reg_behavior; struct pci_bridge_emul { struct pci_bridge_emul_conf conf; struct pci_bridge_emul_pcie_conf pcie_conf; - struct pci_bridge_emul_ops *ops; + const struct pci_bridge_emul_ops *ops; struct pci_bridge_reg_behavior *pci_regs_behavior; struct pci_bridge_reg_behavior *pcie_cap_regs_behavior; void *data; bool has_pcie; + u16 subsystem_vendor_id; + u16 subsystem_id; }; enum { - PCI_BRIDGE_EMUL_NO_PREFETCHABLE_BAR = BIT(0), + /* + * PCI bridge does not support forwarding of prefetchable memory + * requests between primary and secondary buses. + */ + PCI_BRIDGE_EMUL_NO_PREFMEM_FORWARD = BIT(0), + + /* + * PCI bridge does not support forwarding of IO requests between + * primary and secondary buses. + */ + PCI_BRIDGE_EMUL_NO_IO_FORWARD = BIT(1), }; int pci_bridge_emul_init(struct pci_bridge_emul *bridge, |