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iommu sg merging: ppc: make iommu respect the segment size limits

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This patch makes iommu respect segment size limits when merging sg
lists.

Signed-off-by: FUJITA Tomonori <[email protected]>
Cc: Jeff Garzik <[email protected]>
Cc: James Bottomley <[email protected]>
Acked-by: Jens Axboe <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
FUJITA Tomonori 2008-02-04 22:27:57 -08:00 • committed by Linus Torvalds
commit 740c3ce667
3 changed files with 8 additions and 4 deletions
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2
include/asm-powerpc/iommu.h
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@ -79,7 +79,7 @@ extern void iommu_free_table(struct iommu_table *tbl, const char *node_name);
extern struct iommu_table *iommu_init_table(struct iommu_table * tbl,
int nid);
extern int iommu_map_sg(struct iommu_table *tbl, struct scatterlist *sglist,
extern int iommu_map_sg(struct device *dev, struct scatterlist *sglist,
int nelems, unsigned long mask,
enum dma_data_direction direction);
extern void iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist,