diff options
| author | Catalin Marinas <catalin.marinas@arm.com> | 2012-07-25 14:32:38 +0100 |
|---|---|---|
| committer | Steve Capper <steve.capper@linaro.org> | 2013-06-04 16:52:37 +0100 |
| commit | 1355e2a6eb88f04d76125c057dc5fca64d4b6a9e (patch) | |
| tree | af2c21aba209583f46e2424aec2e5d70b80c7965 /arch/arm/mm/dma-mapping.c | |
| parent | 0b19f93351dd68cb68a1a5b2d74e13d2ddfcfc64 (diff) | |
ARM: mm: HugeTLB support for LPAE systems.
This patch adds support for hugetlbfs based on the x86 implementation.
It allows mapping of 2MB sections (see Documentation/vm/hugetlbpage.txt
for usage). The 64K pages configuration is not supported (section size
is 512MB in this case).
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
[steve.capper@linaro.org: symbolic constants replace numbers in places.
Split up into multiple files, to simplify future non-LPAE support,
removed huge_pmd_share code, as this is very rarely executed,
Added PROT_NONE support].
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')
| -rw-r--r-- | arch/arm/mm/dma-mapping.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index ef3e0f3aac96..9674476a75dc 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -250,7 +250,7 @@ static void __dma_free_buffer(struct page *page, size_t size) #ifdef CONFIG_MMU #ifdef CONFIG_HUGETLB_PAGE -#error ARM Coherent DMA allocator does not (yet) support huge TLB +#warning ARM Coherent DMA allocator does not (yet) support huge TLB #endif static void *__alloc_from_contiguous(struct device *dev, size_t size, |