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| author |   Oliver O'Halloran <oohall@gmail.com> | 2017-04-12 03:42:31 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2017-04-21 21:08:47 +1000 |
| commit | f855b2f544d664cfa3055edb7ffd20e9ae0e2dce (patch) | |
| tree | 6c380d6317c333a60420ea48e3d383c3afc0298d /arch | |
| parent | powerpc/64s: Use relon prolog for EXC_VIRT_OOL_MASKABLE_HV handlers (diff) | |
| download | linux-dev-f855b2f544d664cfa3055edb7ffd20e9ae0e2dce.tar.xz linux-dev-f855b2f544d664cfa3055edb7ffd20e9ae0e2dce.zip | |
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: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/io.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h index c398e86cd1cc..422f99cf9924 100644 --- a/arch/powerpc/include/asm/io.h +++ b/arch/powerpc/include/asm/io.h @@ -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); #define ioremap_nocache(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); |