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(parent: a482418) | patch
arm64: Fix memory shareability attribute for ioremap_wc/cache
authorCatalin Marinas <catalin.marinas@arm.com>
Thu, 5 Dec 2013 16:56:50 +0000 (16:56 +0000)
committerCatalin Marinas <catalin.marinas@arm.com>
Fri, 6 Dec 2013 17:21:52 +0000 (17:21 +0000)
commit107d53fc26d1a926c2c3eee587b44c0753114a07
treea66a8bbd89cea0bb39e98638d0d805d72dd4a45dtree | snapshot
parenta482418706249f3523f4c0f0bc1704347152c652commit | diff
arm64: Fix memory shareability attribute for ioremap_wc/cache

Write-combine and cacheable mappings use Normal memory on arm64. On SMP
systems, the pte needs the shareability bit which is set in
pgprot_default. Use this for defining PROT_DEFAULT used by ioremap_wc
and ioremap_cache (Device memory is shareable by default, does not need
additional attributes).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/include/asm/io.h diff | blob | history
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