diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-04 10:36:39 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-04 10:36:39 -0700 |
| commit | 4a35cee066df1b1958e25e71595b3845d06b192e (patch) | |
| tree | 0d6c9de77da09a6d42d1bf03983f620615cc6f24 /include/linux | |
| parent | 7e6880951da86928c7f6cecf26dcb8e8d9f826da (diff) | |
| parent | d7ef1533a90f432615d25729c2477bac9e72051d (diff) | |
Merge branch 'stable/swiotlb-0.8.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb-2.6
* 'stable/swiotlb-0.8.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb-2.6:
swiotlb: Make swiotlb bookkeeping functions visible in the header file.
swiotlb: search and replace "int dir" with "enum dma_data_direction dir"
swiotlb: Make internal bookkeeping functions have 'swiotlb_tbl' prefix.
swiotlb: add the swiotlb initialization function with iotlb memory
swiotlb: add swiotlb_tbl_map_single library function
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/swiotlb.h | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h index 81a4e213c6cf..8c0e349f4a6c 100644 --- a/include/linux/swiotlb.h +++ b/include/linux/swiotlb.h @@ -23,6 +23,29 @@ extern int swiotlb_force; #define IO_TLB_SHIFT 11 extern void swiotlb_init(int verbose); +extern void swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, int verbose); + +/* + * Enumeration for sync targets + */ +enum dma_sync_target { + SYNC_FOR_CPU = 0, + SYNC_FOR_DEVICE = 1, +}; +extern void *swiotlb_tbl_map_single(struct device *hwdev, dma_addr_t tbl_dma_addr, + phys_addr_t phys, size_t size, + enum dma_data_direction dir); + +extern void swiotlb_tbl_unmap_single(struct device *hwdev, char *dma_addr, + size_t size, enum dma_data_direction dir); + +extern void swiotlb_tbl_sync_single(struct device *hwdev, char *dma_addr, + size_t size, enum dma_data_direction dir, + enum dma_sync_target target); + +/* Accessory functions. */ +extern void swiotlb_bounce(phys_addr_t phys, char *dma_addr, size_t size, + enum dma_data_direction dir); extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size, @@ -42,11 +65,11 @@ extern void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr, extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nents, - int direction); + enum dma_data_direction dir); extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents, - int direction); + enum dma_data_direction dir); extern int swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems, |