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authorSteve Capper <steve.capper@linaro.org>2013-05-17 12:33:28 +0100
committerSteve Capper <steve.capper@linaro.org>2013-06-04 16:52:37 +0100
commit0b19f93351dd68cb68a1a5b2d74e13d2ddfcfc64 (patch)
tree73eb1635f093b9351f1d1bb47f2614167def60ec /arch/arm/mm/dma-mapping.c
parentdde1b65110353517816bcbc58539463396202244 (diff)
downloadlinux-0b19f93351dd68cb68a1a5b2d74e13d2ddfcfc64.tar.bz2
ARM: mm: Add support for flushing HugeTLB pages.
On ARM we use the __flush_dcache_page function to flush the dcache of pages when needed; usually when the PG_dcache_clean bit is unset and we are setting a PTE. A HugeTLB page is represented as a compound page consisting of an array of pages. Thus to flush the dcache of a HugeTLB page, one must flush more than a single page. This patch modifies __flush_dcache_page such that all constituent pages of a HugeTLB page are flushed. Signed-off-by: Steve Capper <steve.capper@linaro.org> Reviewed-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm/mm/dma-mapping.c')
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