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authorOhad Ben-Cohen <ohad@wizery.com>2011-06-05 18:22:18 +0300
committerJoerg Roedel <joerg.roedel@amd.com>2011-06-21 10:49:29 +0200
commit29b68415e335ba9e0eb6057f9405aa4d9c23efe4 (patch)
tree76d1a8990ab1e5db5f6860262cb52c186d477925
parentb10f127e1a4d8cac5414c6e2b152c205b66c9f16 (diff)
x86: amd_iommu: move to drivers/iommu/
This should ease finding similarities with different platforms, with the intention of solving problems once in a generic framework which everyone can use. Compile-tested on x86_64. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
-rw-r--r--arch/x86/Kconfig28
-rw-r--r--arch/x86/kernel/Makefile2
-rw-r--r--drivers/iommu/Kconfig29
-rw-r--r--drivers/iommu/Makefile1
-rw-r--r--drivers/iommu/amd_iommu.c (renamed from arch/x86/kernel/amd_iommu.c)0
5 files changed, 31 insertions, 29 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 460d5737001..1b6a2e212db 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -680,34 +680,6 @@ config CALGARY_IOMMU_ENABLED_BY_DEFAULT
Calgary anyway, pass 'iommu=calgary' on the kernel command line.
If unsure, say Y.
-config AMD_IOMMU
- bool "AMD IOMMU support"
- select SWIOTLB
- select PCI_MSI
- select PCI_IOV
- select IOMMU_API
- depends on X86_64 && PCI && ACPI
- ---help---
- With this option you can enable support for AMD IOMMU hardware in
- your system. An IOMMU is a hardware component which provides
- remapping of DMA memory accesses from devices. With an AMD IOMMU you
- can isolate the the DMA memory of different devices and protect the
- system from misbehaving device drivers or hardware.
-
- You can find out if your system has an AMD IOMMU if you look into
- 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
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 90b06d4daee..aef02989c93 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -123,7 +123,7 @@ ifeq ($(CONFIG_X86_64),y)
obj-$(CONFIG_GART_IOMMU) += amd_gart_64.o aperture_64.o
obj-$(CONFIG_CALGARY_IOMMU) += pci-calgary_64.o tce_64.o
- obj-$(CONFIG_AMD_IOMMU) += amd_iommu_init.o amd_iommu.o
+ obj-$(CONFIG_AMD_IOMMU) += amd_iommu_init.o
obj-$(CONFIG_PCI_MMCONFIG) += mmconf-fam10h_64.o
obj-y += vsmp_64.o
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 21a80bfbdb5..9246c5bf25a 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -17,3 +17,32 @@ config MSM_IOMMU
config IOMMU_PGTABLES_L2
def_bool y
depends on MSM_IOMMU && MMU && SMP && CPU_DCACHE_DISABLE=n
+
+# AMD IOMMU support
+config AMD_IOMMU
+ bool "AMD IOMMU support"
+ select SWIOTLB
+ select PCI_MSI
+ select PCI_IOV
+ select IOMMU_API
+ depends on X86_64 && PCI && ACPI
+ ---help---
+ With this option you can enable support for AMD IOMMU hardware in
+ your system. An IOMMU is a hardware component which provides
+ remapping of DMA memory accesses from devices. With an AMD IOMMU you
+ can isolate the the DMA memory of different devices and protect the
+ system from misbehaving device drivers or hardware.
+
+ You can find out if your system has an AMD IOMMU if you look into
+ 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.
diff --git a/drivers/iommu/Makefile b/drivers/iommu/Makefile
index 1a71c82b1af..4237eaf8460 100644
--- a/drivers/iommu/Makefile
+++ b/drivers/iommu/Makefile
@@ -1,2 +1,3 @@
obj-$(CONFIG_IOMMU_API) += iommu.o
obj-$(CONFIG_MSM_IOMMU) += msm_iommu.o msm_iommu_dev.o
+obj-$(CONFIG_AMD_IOMMU) += amd_iommu.o
diff --git a/arch/x86/kernel/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 7c3a95e54ec..7c3a95e54ec 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c