intel-iommu: Introduce domain_sg_mapping() to speed up intel_map_sg()

Browse source

Instead of calling domain_pfn_mapping() repeatedly with single or
small numbers of pages, just pass the sglist in. It can optimise the
number of cache flushes like domain_pfn_mapping() does, and gives a huge
speedup for large scatterlists.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

...

This commit is contained in:

David Woodhouse 2009-06-29 11:17:38 +01:00

parent 875764de6f

commit e1605495c7

1 changed files with 62 additions and 21 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

83

drivers/pci/intel-iommu.c

View file