From b923650b84068b74b6df838aa8f9b2a350171de6 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 30 Jan 2012 00:20:48 +0200 Subject: lib: add NO_GENERIC_PCI_IOPORT_MAP Some architectures need to override the way IO port mapping is done on PCI devices. Supply a generic macro that calls ioport_map, and make it possible for architectures to override. Signed-off-by: Michael S. Tsirkin Acked-by: Arnd Bergmann --- include/asm-generic/pci_iomap.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/asm-generic/pci_iomap.h') diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h index 8de4b73e19e2..e58fcf891370 100644 --- a/include/asm-generic/pci_iomap.h +++ b/include/asm-generic/pci_iomap.h @@ -15,6 +15,16 @@ struct pci_dev; #ifdef CONFIG_PCI /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); +/* Create a virtual mapping cookie for a port on a given PCI device. + * Do not call this directly, it exists to make it easier for architectures + * to override */ +#ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP +extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port, + unsigned int nr); +#else +#define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr)) +#endif + #else static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) { -- cgit v1.2.3