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| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2012-07-30 09:11:33 +0200 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2012-07-30 12:25:45 +0200 |
| commit | e9da6e9905e639b0f842a244bc770b48ad0523e9 (patch) | |
| tree | c99beeb259716121dcb388f35f54f99a2a414a92 /include/linux/vmalloc.h | |
| parent | 5e6cafc83e30f0f70c79a2b7aef237dc57e29f02 (diff) | |
| download | lwn-e9da6e9905e639b0f842a244bc770b48ad0523e9.tar.gz lwn-e9da6e9905e639b0f842a244bc770b48ad0523e9.zip | |
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.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 2e28f4d40d7f..6071e911c7f4 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); |