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2016-04-05iommu/io-pgtable: Fix a brace coding style issue.Cosmin-Gabriel Samoila1-2/+1
Fixed a coding style issue. Signed-off-by: Cosmin-Gabriel Samoila <gabrielcsmo@gmail.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-02-17iommu/io-pgtable: Add helper functions for TLB opsRobin Murphy1-1/+1
Add some simple wrappers to avoid having the guts of the TLB operations spilled all over the page table implementations, and to provide a point to implement extra common functionality. Acked-by: Will Deacon <will.deacon@arm.com> Acked-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>
2016-02-17iommu/io-pgtable: Add ARMv7 short descriptor supportRobin Murphy1-0/+3
Add a nearly-complete ARMv7 short descriptor implementation, omitting only a few legacy and CPU-centric aspects which shouldn't be necessary for IOMMU API use anyway. Reviewed-by: Yong Wu <yong.wu@mediatek.com> Tested-by: Yong Wu <yong.wu@mediatek.com> Signed-off-by: Yong Wu <yong.wu@mediatek.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-08-13iommu/io-pgtable-arm: Move init-fn declarations to io-pgtable.hJoerg Roedel1-5/+0
Avoid extern declarations in c files. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-01-19iommu: add ARM LPAE page table allocatorWill Deacon1-0/+11
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>
2015-01-19iommu: introduce generic page table allocation frameworkWill Deacon1-0/+71
This patch introduces a generic framework for allocating page tables for an IOMMU. There are a number of reasons we want to do this: - It avoids duplication of complex table management code in IOMMU drivers that use the same page table format - It removes any coupling with the CPU table format (and even the architecture!) - It defines an API for IOMMU TLB maintenance Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Will Deacon <will.deacon@arm.com>