x86: enable DMAR by default

[pandora-kernel.git] / arch / x86 / Kconfig

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 249d1e0..bc2fbad 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -27,6 +27,7 @@ config X86
        select HAVE_IOREMAP_PROT
        select HAVE_KPROBES
        select ARCH_WANT_OPTIONAL_GPIOLIB
+       select ARCH_WANT_FRAME_POINTERS
        select HAVE_KRETPROBES
        select HAVE_FTRACE_MCOUNT_RECORD
        select HAVE_DYNAMIC_FTRACE
@@ -586,6 +587,16 @@ config AMD_IOMMU
          your BIOS for an option to enable it or if you have an IVRS ACPI
          table.
 
+config AMD_IOMMU_STATS
+       bool "Export AMD IOMMU statistics to debugfs"
+       depends on AMD_IOMMU
+       select DEBUG_FS
+       help
+         This option enables code in the AMD IOMMU driver to collect various
+         statistics about whats happening in the driver and exports that
+         information to userspace via debugfs.
+         If unsure, say N.
+
 # need this always selected by IOMMU for the VIA workaround
 config SWIOTLB
        def_bool y if X86_64
@@ -599,6 +610,9 @@ config SWIOTLB
 config IOMMU_HELPER
        def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU)
 
+config IOMMU_API
+       def_bool (AMD_IOMMU || DMAR)
+
 config MAXSMP
        bool "Configure Maximum number of SMP Processors and NUMA Nodes"
        depends on X86_64 && SMP && DEBUG_KERNEL && EXPERIMENTAL
@@ -1788,6 +1802,17 @@ config DMAR
          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. It is
+         recommended you say N here while the DMAR code remains
+         experimental.
+
 config DMAR_GFX_WA
        def_bool y
        prompt "Support for Graphics workaround"