iommu/ipmmu-vmsa: Support multiple micro TLBs per device

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Devices such as the system DMA controller are connected to multiple
micro TLBs of the same IOMMU. Support this.

Selective enabling of micro TLBs based on runtime device usage isn't
possible at the moment due to lack of support in the IOMMU and DMA
mapping APIs. Support for devices connected to different IOMMUs is also
unsupported for the same reason.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

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Laurent Pinchart 2014-07-24 01:36:43 +02:00

parent 275f5053c7

commit a166d31ee5

1 changed files with 86 additions and 29 deletions

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drivers/iommu/ipmmu-vmsa.c

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