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| author |   Will Deacon <will.deacon@arm.com> | 2014-11-14 17:16:49 +0000 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2015-01-19 14:46:43 +0000 |
| commit | fdb1d7be7c4d452e9735aeb2b60ae8a2fcf0a514 (patch) | |
| tree | 108b994fbb99aed086654bae4badabc13d9d7adf /drivers/iommu/Kconfig | |
| parent | linux 3.19-rc4 (diff) | |
| download | linux-dev-fdb1d7be7c4d452e9735aeb2b60ae8a2fcf0a514.tar.xz linux-dev-fdb1d7be7c4d452e9735aeb2b60ae8a2fcf0a514.zip | |
iommu: introduce generic page table allocation framework
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>
Diffstat (limited to 'drivers/iommu/Kconfig')
| -rw-r--r-- | drivers/iommu/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 325188eef1c1..3faaa41db8ff 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -13,6 +13,14 @@ menuconfig IOMMU_SUPPORT if IOMMU_SUPPORT +menu "Generic IOMMU Pagetable Support" + +# Selected by the actual pagetable implementations +config IOMMU_IO_PGTABLE + bool + +endmenu + config OF_IOMMU def_bool y depends on OF && IOMMU_API |