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generic: add ioremap_wc() interface wrapper

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x86 has ioremap_wc for wc remap. Also introduce a generic ioremap_wc
aliased to ioremap_uc so that drivers can use this interface transparently.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
venkatesh.pallipadi@intel.com 2008-03-18 17:00:24 -07:00 committed by Ingo Molnar
parent 1f56cf1c58
commit 1526a756fb
1 changed files with 4 additions and 0 deletions
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4
include/asm-generic/iomap.h
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@ -60,6 +60,10 @@ extern void iowrite32_rep(void __iomem *port, const void *buf, unsigned long cou
extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
extern void ioport_unmap(void __iomem *);
#ifndef ARCH_HAS_IOREMAP_WC
#define ioremap_wc ioremap_nocache
#endif
/* Create 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);