diff options
| author | Krishna Reddy <vdumpa@nvidia.com> | 2014-06-26 17:29:30 -0700 |
|---|---|---|
| committer | Mandar Padmawar <mpadmawar@nvidia.com> | 2014-06-30 04:08:26 -0700 |
| commit | a983aa965a92305360f854362cf770bc82503675 (patch) | |
| tree | 8b1cb3503b7abd103e9404fe53cd2ba30be8b5f7 /include | |
| parent | 7d511f3a70cfe9508a9bd2230d8b20b6c5114689 (diff) | |
base: dma-contiguous: add API to specify the start of allocation
Add API dma_alloc_at_from_contiguous to support allocations at
specific phys address.
Bug 200016405
Change-Id: I425a25af3163c391e6b7d9b8bc3299f3ffc7c7c8
Signed-off-by: Krishna Reddy <vdumpa@nvidia.com>
Reviewed-on: http://git-master/r/431949
GVS: Gerrit_Virtual_Submit
Diffstat (limited to 'include')
| -rwxr-xr-x | include/linux/dma-contiguous.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/dma-contiguous.h b/include/linux/dma-contiguous.h index 3aba068c2d8b..a2010387b2c5 100755 --- a/include/linux/dma-contiguous.h +++ b/include/linux/dma-contiguous.h @@ -78,6 +78,8 @@ int dma_declare_contiguous(struct device *dev, phys_addr_t size, struct page *dma_alloc_from_contiguous(struct device *dev, int count, unsigned int order); +struct page *dma_alloc_at_from_contiguous(struct device *dev, int count, + unsigned int order, phys_addr_t at_addr); bool dma_release_from_contiguous(struct device *dev, struct page *pages, int count); int dma_get_contiguous_stats(struct device *dev, @@ -99,6 +101,13 @@ int dma_declare_contiguous(struct device *dev, phys_addr_t size, } static inline +struct page *dma_alloc_at_from_contiguous(struct device *dev, int count, + unsigned int order, phys_addr_t at_addr) +{ + return NULL; +} + +static inline struct page *dma_alloc_from_contiguous(struct device *dev, int count, unsigned int order) { |