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103 Commits

Author SHA1 Message Date
Laurent Pinchart c896c132b0 iommu: io-pgtable-arm: add non-secure quirk 
The quirk causes the Non-Secure bit to be set in all page table entries.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
 2015-01-19 14:46:45 +00:00
Will Deacon fe4b991dcd iommu: add self-consistency tests to ARM LPAE IO page table allocator 
This patch adds a series of basic self-consistency tests to the ARM LPAE
IO page table allocator that exercise corner cases in map/unmap, as well
as testing all valid configurations of pagesize, ias and stage.

Signed-off-by: Will Deacon <will.deacon@arm.com>
 2015-01-19 14:46:44 +00:00
Will Deacon e1d3c0fd70 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>
 2015-01-19 14:46:44 +00:00