commit e1d3c0fd701df831169b116cd5c5d6203ac07f70
author Will Deacon <will.deacon@arm.com> Fri Nov 14 17:18:23 2014 +0000
committer Will Deacon <will.deacon@arm.com> Mon Jan 19 14:46:44 2015 +0000
tree eb2537042682bf45a36148d06bb0bfb10ce3da74
parent fdb1d7be7c4d452e9735aeb2b60ae8a2fcf0a514

iommu: add ARM LPAE page table allocator

A number of IOMMUs found in ARM SoCs can walk architecture-compatible
page tables.

This patch adds a generic allocator for Stage-1 and Stage-2 v7/v8
long-descriptor page tables. 4k, 16k and 64k pages are supported, with
up to 4-levels of walk to cover a 48-bit address space.

Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>