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lib: add GENERIC_PCI_IOMAP

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Many architectures want a generic pci_iomap but
not the rest of iomap.c. Split that to a separate .c
file and add a new config symbol. select automatically
by GENERIC_IOMAP.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2011-11-24 20:45:20 +02:00
commit 66eab4df28
7 changed files with 85 additions and 44 deletions
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9
include/asm-generic/iomap.h
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@ -67,18 +67,15 @@ extern void ioport_unmap(void __iomem *);
#endif
#ifdef CONFIG_PCI
/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
/* Destroy a virtual mapping cookie for a PCI BAR (memory or IO) */
struct pci_dev;
extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
#else
struct pci_dev;
static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
{
return NULL;
}
static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
{ }
#endif
#include <asm-generic/pci_iomap.h>
#endif