diff options
| author | Ivan Kokshaysky <ink@jurassic.park.msu.ru> | 2002-09-07 18:23:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@home.transmeta.com> | 2002-09-07 18:23:34 -0700 |
| commit | 36780249955396f8c9a76192f360ac3a8e9d1e01 (patch) | |
| tree | 5733cceaf034bbe8a3926f22c0d06cdeefeb9227 /include/linux | |
| parent | be4bde6098bb8738c291d8f6679b0c071e227161 (diff) | |
[PATCH] pci bus resources, transparent bridges
Added PCI_BUS_NUM_RESOURCES as Ben suggested. Default value is 4
and can be overridden by arch (probably in asm/system.h).
pci_read_bridge_bases() and pci_assign_bus_resource() changed
accordingly. "for (i = 0 ; i < 4; i++)" in pci_add_new_bus() not
changed, as it's used _only_ for pci-pci and cardbus bridges.
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pci.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 3c76341f02bf..b82ec8e41174 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -386,6 +386,9 @@ struct pci_dev { int ro; /* ISAPnP: read only */ unsigned short regs; /* ISAPnP: supported registers */ + /* These fields are used by common fixups */ + unsigned short transparent:1; /* Transparent PCI bridge */ + int (*prepare)(struct pci_dev *dev); /* ISAPnP hooks */ int (*activate)(struct pci_dev *dev); int (*deactivate)(struct pci_dev *dev); @@ -406,6 +409,10 @@ struct pci_dev { #define PCI_ROM_RESOURCE 6 #define PCI_BRIDGE_RESOURCES 7 #define PCI_NUM_RESOURCES 11 + +#ifndef PCI_BUS_NUM_RESOURCES +#define PCI_BUS_NUM_RESOURCES 4 +#endif #define PCI_REGION_FLAG_MASK 0x0fU /* These bits of resource flags tell us the PCI region flags */ @@ -415,7 +422,8 @@ struct pci_bus { struct list_head children; /* list of child buses */ struct list_head devices; /* list of devices on this bus */ struct pci_dev *self; /* bridge device as seen by parent */ - struct resource *resource[4]; /* address space routed to this bus */ + struct resource *resource[PCI_BUS_NUM_RESOURCES]; + /* address space routed to this bus */ struct pci_ops *ops; /* configuration access functions */ void *sysdata; /* hook for sys-specific extension */ |