arm64: Remove pgprot_dmacoherent()

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Since this macro is identical to pgprot_writecombine() and is only used
in a single place, remove it completely to avoid confusion. On ARMv7+
processors, the coherent DMA mapping must be Normal NonCacheable (a.k.a.
writecombine) to avoid mismatched hardware attribute aliases (with the
kernel linear mapping as Normal Cacheable).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Catalin Marinas 2014-03-24 10:35:35 +00:00

parent 214fdbe74a

commit 196adf2f30

2 changed files with 1 additions and 5 deletions

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2

arch/arm64/include/asm/pgtable.h

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4

arch/arm64/mm/dma-mapping.c

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