]> git.karo-electronics.de Git - karo-tx-linux.git/commit
ARM: mm: Add support for flushing HugeTLB pages.
authorSteve Capper <steve.capper@linaro.org>
Fri, 17 May 2013 11:33:28 +0000 (12:33 +0100)
committerSteve Capper <steve.capper@linaro.org>
Tue, 4 Jun 2013 15:52:37 +0000 (16:52 +0100)
commit0b19f93351dd68cb68a1a5b2d74e13d2ddfcfc64
tree73eb1635f093b9351f1d1bb47f2614167def60ec
parentdde1b65110353517816bcbc58539463396202244
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>
arch/arm/mm/flush.c