[PARISC] Make ioremap default to _nocache
Since it is way more work to change most drivers to comply with parisc, take the easy way out and make ioremap _NO_CACHE by default. This is in line with what powerpc does. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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@ -126,24 +126,17 @@ static inline void gsc_writeq(unsigned long long val, unsigned long addr)
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extern void __iomem * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
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extern void __iomem * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
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/* Most machines react poorly to I/O-space being cacheable... Instead let's
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* define ioremap() in terms of ioremap_nocache().
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*/
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extern inline void __iomem * ioremap(unsigned long offset, unsigned long size)
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extern inline void __iomem * ioremap(unsigned long offset, unsigned long size)
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{
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{
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return __ioremap(offset, size, 0);
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return __ioremap(offset, size, _PAGE_NO_CACHE);
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}
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/*
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* This one maps high address device memory and turns off caching for that area.
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* it's useful if some control registers are in such an area and write combining
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* or read caching is not desirable:
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*/
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extern inline void * ioremap_nocache(unsigned long offset, unsigned long size)
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{
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return __ioremap(offset, size, _PAGE_NO_CACHE /* _PAGE_PCD */);
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}
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}
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#define ioremap_nocache(off, sz) ioremap((off), (sz))
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extern void iounmap(void __iomem *addr);
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extern void iounmap(void __iomem *addr);
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static inline unsigned char __raw_readb(const volatile void __iomem *addr)
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static inline unsigned char __raw_readb(const volatile void __iomem *addr)
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{
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{
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return (*(volatile unsigned char __force *) (addr));
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return (*(volatile unsigned char __force *) (addr));
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