diff options
| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2010-05-28 11:37:10 -0400 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2010-06-07 11:59:27 -0400 |
| commit | d7ef1533a90f432615d25729c2477bac9e72051d (patch) | |
| tree | 1cb27e7e3e7341b870ca94bcd38e9da1115ef11b /include/linux/swiotlb.h | |
| parent | 22d48269984fc93a71f65a54aa422aacf5fdb926 (diff) | |
swiotlb: Make swiotlb bookkeeping functions visible in the header file.
We put the functions dealing with the operations on
the SWIOTLB buffer in the header and make those functions non-static.
And also make the functions exported via EXPORT_SYMBOL_GPL.
See "swiotlb: swiotlb: add swiotlb_tbl_map_single library function" for
full description of patchset.
[v2: swiotlb_sync_single_range_for_* no more. Remove usage.]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Tested-by: Albert Herranz <albert_herranz@yahoo.es>
Diffstat (limited to 'include/linux/swiotlb.h')
| -rw-r--r-- | include/linux/swiotlb.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h index 250d766f17f..8c0e349f4a6 100644 --- a/include/linux/swiotlb.h +++ b/include/linux/swiotlb.h @@ -25,6 +25,28 @@ extern int swiotlb_force; 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, dma_addr_t *dma_handle, gfp_t flags); |