x86/ia64: intel-iommu: move to drivers/iommu/

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / iommu / Kconfig

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 9246c5bf25afd5e9a1de65bcea476820b0db7868..e2a5f141ae2d18088be68d37b261c1cce2b54017 100644 (file)
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -46,3 +46,52 @@ config AMD_IOMMU_STATS
          statistics about whats happening in the driver and exports that
          information to userspace via debugfs.
          If unsure, say N.
+
+# Intel IOMMU support
+config DMAR
+       bool "Support for DMA Remapping Devices"
+       depends on PCI_MSI && ACPI && (X86 || IA64_GENERIC)
+       select IOMMU_API
+       help
+         DMA remapping (DMAR) devices support enables independent address
+         translations for Direct Memory Access (DMA) from devices.
+         These DMA remapping devices are reported via ACPI tables
+         and include PCI device scope covered by these DMA
+         remapping devices.
+
+config DMAR_DEFAULT_ON
+       def_bool y
+       prompt "Enable DMA Remapping Devices by default"
+       depends on DMAR
+       help
+         Selecting this option will enable a DMAR device at boot time if
+         one is found. If this option is not selected, DMAR support can
+         be enabled by passing intel_iommu=on to the kernel.
+
+config DMAR_BROKEN_GFX_WA
+       bool "Workaround broken graphics drivers (going away soon)"
+       depends on DMAR && BROKEN && X86
+       ---help---
+         Current Graphics drivers tend to use physical address
+         for DMA and avoid using DMA APIs. Setting this config
+         option permits the IOMMU driver to set a unity map for
+         all the OS-visible memory. Hence the driver can continue
+         to use physical addresses for DMA, at least until this
+         option is removed in the 2.6.32 kernel.
+
+config DMAR_FLOPPY_WA
+       def_bool y
+       depends on DMAR && X86
+       ---help---
+         Floppy disk drivers are known to bypass DMA API calls
+         thereby failing to work when IOMMU is enabled. This
+         workaround will setup a 1:1 mapping for the first
+         16MiB to make floppy (an ISA device) work.
+
+config INTR_REMAP
+       bool "Support for Interrupt Remapping (EXPERIMENTAL)"
+       depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI && EXPERIMENTAL
+       ---help---
+         Supports Interrupt remapping for IO-APIC and MSI devices.
+         To use x2apic mode in the CPU's which support x2APIC enhancements or
+         to support platforms with CPU's having > 8 bit APIC ID, say Y.