iommu/dma: Make PCI window reservation generic

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Now that we're applying the IOMMU API reserved regions to our IOVA
domains, we shouldn't need to privately special-case PCI windows, or
indeed anything else which isn't specific to our iommu-dma layer.
However, since those aren't IOMMU-specific either, rather than start
duplicating code into IOMMU drivers let's transform the existing
function into an iommu_get_resv_regions() helper that they can share.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Robin Murphy 2017-03-16 17:00:19 +00:00 • committed by Joerg Roedel

parent 7c1b058c8b

commit 273df96353

4 changed files with 37 additions and 10 deletions

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include/linux/dma-iommu.h

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