diff options
| author | Joerg Roedel <jroedel@suse.de> | 2015-01-26 13:42:49 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2015-01-26 13:42:49 +0100 |
| commit | fd47b693c3c694da8210b5a0c01b1e379f4d9865 (patch) | |
| tree | 84d8c5596df7f6eb295ac380b8ddb983af6c906d /drivers/iommu/Kconfig | |
| parent | Merge branch 'iommu/next' of git://linuxtv.org/pinchartl/fbdev into arm/renesas (diff) | |
| parent | Merge branch 'for-joerg/arm-smmu/updates' of git://git.kernel.org/pub/scm/lin... (diff) | |
| download | linux-fd47b693c3c694da8210b5a0c01b1e379f4d9865.tar.xz linux-fd47b693c3c694da8210b5a0c01b1e379f4d9865.zip | |
Merge branch 'arm/smmu' into arm/renesas
Diffstat (limited to 'drivers/iommu/Kconfig')
| -rw-r--r-- | drivers/iommu/Kconfig | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 325188eef1c1..87060ad6829d 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -13,6 +13,32 @@ menuconfig IOMMU_SUPPORT if IOMMU_SUPPORT +menu "Generic IOMMU Pagetable Support" + +# Selected by the actual pagetable implementations +config IOMMU_IO_PGTABLE + bool + +config IOMMU_IO_PGTABLE_LPAE + bool "ARMv7/v8 Long Descriptor Format" + select IOMMU_IO_PGTABLE + help + Enable support for the ARM long descriptor pagetable format. + This allocator supports 4K/2M/1G, 16K/32M and 64K/512M page + sizes at both stage-1 and stage-2, as well as address spaces + up to 48-bits in size. + +config IOMMU_IO_PGTABLE_LPAE_SELFTEST + bool "LPAE selftests" + depends on IOMMU_IO_PGTABLE_LPAE + help + Enable self-tests for LPAE page table allocator. This performs + a series of page-table consistency checks during boot. + + If unsure, say N here. + +endmenu + config OF_IOMMU def_bool y depends on OF && IOMMU_API @@ -304,13 +330,13 @@ config SPAPR_TCE_IOMMU config ARM_SMMU bool "ARM Ltd. System MMU (SMMU) Support" - depends on ARM64 || (ARM_LPAE && OF) + depends on ARM64 || ARM select IOMMU_API + select IOMMU_IO_PGTABLE_LPAE select ARM_DMA_USE_IOMMU if ARM help Support for implementations of the ARM System MMU architecture - versions 1 and 2. The driver supports both v7l and v8l table - formats with 4k and 64k page sizes. + versions 1 and 2. Say Y here if your SoC includes an IOMMU device implementing the ARM SMMU architecture. |