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0291df8cc iommu sg: add IOMMU helper functions for the free area management ... Browse Code »

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
Cc: Jeff Garzik
Cc: James Bottomley
Cc: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds

FUJITA Tomonori
2008-02-06 01:44:11 +0800

iommu-helper.h 327 Bytes

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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);