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iommu/ipmmu-vmsa: Support multiple micro TLBs per device
authorLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Wed, 23 Jul 2014 23:36:43 +0000 (01:36 +0200)
committerLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Fri, 16 Jan 2015 16:03:05 +0000 (18:03 +0200)
commita166d31ee56e8fc56ce2497d8de9da5359f4ee41
treeabe53fe4b25e43ccdf4026f1042e71c848e68ddatree | snapshot (tar.gz zip)
parent275f5053c7786285d2f20d2dd12908f834c47ad8commit | diff
iommu/ipmmu-vmsa: Support multiple micro TLBs per device

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>
drivers/iommu/ipmmu-vmsa.c diff | blob | blame | history