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PCI: add a new function to map BAR offsets

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Add a function to map a given resource number to a corresponding
register so drivers can get the offset and type of device specific BARs.

Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Yu Zhao
2008-11-22 02:41:27 +08:00
committed by Jesse Barnes
parent 3789fa8a2e
commit 613e7ed6f7
3 changed files with 29 additions and 8 deletions
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2
drivers/pci/pci.h
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@@ -171,6 +171,8 @@ enum pci_bar_type {
extern int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
struct resource *res, unsigned int reg);
extern int pci_resource_bar(struct pci_dev *dev, int resno,
enum pci_bar_type *type);
extern void pci_enable_ari(struct pci_dev *dev);
/**
* pci_ari_enabled - query ARI forwarding status