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authorMarek Szyprowski <m.szyprowski@samsung.com>2012-07-30 09:11:33 +0200
committerMarek Szyprowski <m.szyprowski@samsung.com>2012-07-30 12:25:45 +0200
commite9da6e9905e639b0f842a244bc770b48ad0523e9 (patch)
treec99beeb259716121dcb388f35f54f99a2a414a92 /include/linux/vmalloc.h
parent5e6cafc83e30f0f70c79a2b7aef237dc57e29f02 (diff)
downloadop-kernel-dev-e9da6e9905e639b0f842a244bc770b48ad0523e9.zip
op-kernel-dev-e9da6e9905e639b0f842a244bc770b48ad0523e9.tar.gz
ARM: dma-mapping: remove custom consistent dma region
This patch changes dma-mapping subsystem to use generic vmalloc areas for all consistent dma allocations. This increases the total size limit of the consistent allocations and removes platform hacks and a lot of duplicated code. Atomic allocations are served from special pool preallocated on boot, because vmalloc areas cannot be reliably created in atomic context. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Minchan Kim <minchan@kernel.org>
Diffstat (limited to 'include/linux/vmalloc.h')
-rw-r--r--include/linux/vmalloc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 2e28f4d..6071e91 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -93,6 +93,7 @@ extern struct vm_struct *__get_vm_area_caller(unsigned long size,
unsigned long start, unsigned long end,
const void *caller);
extern struct vm_struct *remove_vm_area(const void *addr);
+extern struct vm_struct *find_vm_area(const void *addr);
extern int map_vm_area(struct vm_struct *area, pgprot_t prot,
struct page ***pages);
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