summaryrefslogtreecommitdiffstats
path: root/drivers/iommu/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/iommu/Kconfig')
-rw-r--r--drivers/iommu/Kconfig51
1 files changed, 43 insertions, 8 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 325188eef1c1..baa0d9786f50 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -4,6 +4,7 @@ config IOMMU_API
menuconfig IOMMU_SUPPORT
bool "IOMMU Hardware Support"
+ depends on MMU
default y
---help---
Say Y here if you want to compile device drivers for IO Memory
@@ -13,13 +14,43 @@ 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 IOMMU_IOVA
+ bool
+
config OF_IOMMU
def_bool y
depends on OF && IOMMU_API
config FSL_PAMU
bool "Freescale IOMMU support"
- depends on PPC_E500MC
+ depends on PPC32
+ depends on PPC_E500MC || COMPILE_TEST
select IOMMU_API
select GENERIC_ALLOCATOR
help
@@ -30,7 +61,8 @@ config FSL_PAMU
# MSM IOMMU support
config MSM_IOMMU
bool "MSM IOMMU Support"
- depends on ARCH_MSM8X60 || ARCH_MSM8960
+ depends on ARM
+ depends on ARCH_MSM8X60 || ARCH_MSM8960 || COMPILE_TEST
select IOMMU_API
help
Support for the IOMMUs found on certain Qualcomm SOCs.
@@ -91,6 +123,7 @@ config INTEL_IOMMU
bool "Support for Intel IOMMU using DMA Remapping Devices"
depends on PCI_MSI && ACPI && (X86 || IA64_GENERIC)
select IOMMU_API
+ select IOMMU_IOVA
select DMAR_TABLE
help
DMA remapping (DMAR) devices support enables independent address
@@ -140,7 +173,8 @@ config IRQ_REMAP
# OMAP IOMMU support
config OMAP_IOMMU
bool "OMAP IOMMU Support"
- depends on ARCH_OMAP2PLUS
+ depends on ARM && MMU
+ depends on ARCH_OMAP2PLUS || COMPILE_TEST
select IOMMU_API
config OMAP_IOMMU_DEBUG
@@ -187,7 +221,7 @@ config TEGRA_IOMMU_SMMU
config EXYNOS_IOMMU
bool "Exynos IOMMU Support"
- depends on ARCH_EXYNOS && ARM
+ depends on ARCH_EXYNOS && ARM && MMU
select IOMMU_API
select ARM_DMA_USE_IOMMU
help
@@ -216,7 +250,7 @@ config SHMOBILE_IPMMU_TLB
config SHMOBILE_IOMMU
bool "IOMMU for Renesas IPMMU/IPMMUI"
default n
- depends on ARM
+ depends on ARM && MMU
depends on ARCH_SHMOBILE || COMPILE_TEST
select IOMMU_API
select ARM_DMA_USE_IOMMU
@@ -287,6 +321,7 @@ config IPMMU_VMSA
depends on ARM_LPAE
depends on ARCH_SHMOBILE || COMPILE_TEST
select IOMMU_API
+ select IOMMU_IO_PGTABLE_LPAE
select ARM_DMA_USE_IOMMU
help
Support for the Renesas VMSA-compatible IPMMU Renesas found in the
@@ -304,13 +339,13 @@ config SPAPR_TCE_IOMMU
config ARM_SMMU
bool "ARM Ltd. System MMU (SMMU) Support"
- depends on ARM64 || (ARM_LPAE && OF)
+ depends on (ARM64 || ARM) && MMU
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.