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| author | Catalin Marinas <catalin.marinas@arm.com> | 2014-03-24 11:35:35 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2014-03-24 11:35:35 +0100 |
| commit | 196adf2f3015eacac0567278ba538e3ffdd16d0e (patch) | |
| tree | 2dc6514b3263a9f3ed69b3b0ff34ef908afa5af7 /arch/arm64/kernel/smp.c | |
| parent | arm64: Support DMA_ATTR_WRITE_COMBINE (diff) | |
| download | linux-196adf2f3015eacac0567278ba538e3ffdd16d0e.tar.xz linux-196adf2f3015eacac0567278ba538e3ffdd16d0e.zip | |
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>
Diffstat (limited to 'arch/arm64/kernel/smp.c')
0 files changed, 0 insertions, 0 deletions