iommu/io-pgtable: Rationalise quirk handling

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As the number of io-pgtable implementations grows beyond 1, it's time
to rationalise the quirks mechanism before things have a chance to
start getting really ugly and out-of-hand.

To that end:
- Indicate exactly which quirks each format can/does support.
- Fail creating a table if a caller wants unsupported quirks.
- Properly document where each quirk applies and why.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

...

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Robin Murphy 2016-02-12 17:09:46 +00:00 • committed by Will Deacon

parent 88492a4700

commit 3850db49da

3 changed files with 34 additions and 6 deletions

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drivers/iommu/io-pgtable-arm-v7s.c

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drivers/iommu/io-pgtable-arm.c

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drivers/iommu/io-pgtable.h

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