diff options
| author | FUJITA Tomonori <tomof@acm.org> | 2008-02-05 07:28:07 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-05 18:44:11 +0100 |
| commit | 0291df8cc9dac09c303d21d5bcd2ad73762c836a (patch) | |
| tree | 5a79187b309cc1a2115a94bc7927c85dd3c67ac9 /include | |
| parent | iommu sg merging: aacraid: use pci_set_dma_max_seg_size (diff) | |
| download | linux-0291df8cc9dac09c303d21d5bcd2ad73762c836a.tar.xz linux-0291df8cc9dac09c303d21d5bcd2ad73762c836a.zip | |
iommu sg: add IOMMU helper functions for the free area management
This adds IOMMU helper functions for the free area management. These
functions take care of LLD's segment boundary limit for IOMMUs. They would be
useful for IOMMUs that use bitmap for the free area management.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/iommu-helper.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/iommu-helper.h b/include/linux/iommu-helper.h new file mode 100644 index 000000000000..4dd4c04ff2f4 --- /dev/null +++ b/include/linux/iommu-helper.h @@ -0,0 +1,7 @@ +extern unsigned long iommu_area_alloc(unsigned long *map, unsigned long size, + unsigned long start, unsigned int nr, + unsigned long shift, + unsigned long boundary_size, + unsigned long align_mask); +extern void iommu_area_free(unsigned long *map, unsigned long start, + unsigned int nr); |