msm: iommu: Support cache-coherent memory access

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Add support for allowing IOMMU memory transactions to be
cache coherent, eliminating the need for software cache
management in certain situations. This can lead to
improvements in performance and power usage, assuming the
multimedia core's access pattern exhibits spatial locality
and that its working set fits into the cache.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

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Stepan Moskovchenko 2010-11-15 18:20:08 -08:00 • committed by Daniel Walker

parent 08bd683978

commit 100832c9b6

1 changed files with 82 additions and 11 deletions

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arch/arm/mach-msm/iommu.c

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