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(parent: 214fdbe) | patch
arm64: Remove pgprot_dmacoherent()
authorCatalin Marinas <catalin.marinas@arm.com>
Mon, 24 Mar 2014 10:35:35 +0000 (10:35 +0000)
committerCatalin Marinas <catalin.marinas@arm.com>
Mon, 24 Mar 2014 10:35:35 +0000 (10:35 +0000)
commit196adf2f3015eacac0567278ba538e3ffdd16d0e
tree2dc6514b3263a9f3ed69b3b0ff34ef908afa5af7tree | snapshot
parent214fdbe74a096c3aeb7af81d7900e2ab966b10d6commit | diff
arm64: Remove pgprot_dmacoherent()

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>
arch/arm64/include/asm/pgtable.h diff | blob | blame | history
arch/arm64/mm/dma-mapping.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)