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Commit f855b2f5 authored by Oliver O'Halloran's avatar Oliver O'Halloran Committed by Michael Ellerman
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powerpc/mm: Wire up ioremap_cache() 



The default implementation of ioremap_cache() is aliased to ioremap().
On powerpc ioremap() creates cache-inhibited mappings by default which
is almost certainly not what you wanted.

Signed-off-by: default avatarOliver O'Halloran <oohall@gmail.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent a050d20d

arch/powerpc/include/asm/io.h

+2 −0
Original line number Original line Diff line number Diff line
@@ -759,6 +759,8 @@ extern void __iomem *ioremap_prot(phys_addr_t address, unsigned long size, 
extern void __iomem *ioremap_wc(phys_addr_t address, unsigned long size);

extern void __iomem *ioremap_wc(phys_addr_t address, unsigned long size);

#define ioremap_nocache(addr, size)	ioremap((addr), (size))

#define ioremap_nocache(addr, size)	ioremap((addr), (size))

#define ioremap_uc(addr, size)		ioremap((addr), (size))

#define ioremap_uc(addr, size)		ioremap((addr), (size))

#define ioremap_cache(addr, size) \

	ioremap_prot((addr), (size), pgprot_val(PAGE_KERNEL))





extern void iounmap(volatile void __iomem *addr);

extern void iounmap(volatile void __iomem *addr);