iommu/amd: Move Kconfig and Makefile bits down into amd directory

Move AMD Kconfig and Makefile bits down into the amd directory
with the rest of the AMD specific files.

Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20200630200636.48600-3-jsnitsel@redhat.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

drivers/iommu/Kconfig

@@ -128,50 +128,7 @@ config MSM_IOMMU
 
 	  If unsure, say N here.
 
-# AMD IOMMU support
+source "drivers/iommu/amd/Kconfig"
-config AMD_IOMMU
-	bool "AMD IOMMU support"
-	select SWIOTLB
-	select PCI_MSI
-	select PCI_ATS
-	select PCI_PRI
-	select PCI_PASID
-	select IOMMU_API
-	select IOMMU_IOVA
-	select IOMMU_DMA
-	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 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_V2
-	tristate "AMD IOMMU Version 2 driver"
-	depends on AMD_IOMMU
-	select MMU_NOTIFIER
-	help
-	  This option enables support for the AMD IOMMUv2 features of the IOMMU
-	  hardware. Select this option if you want to use devices that support
-	  the PCI PRI and PASID interface.
-
-config AMD_IOMMU_DEBUGFS
-	bool "Enable AMD IOMMU internals in DebugFS"
-	depends on AMD_IOMMU && IOMMU_DEBUGFS
-	help
-	  !!!WARNING!!!  !!!WARNING!!!  !!!WARNING!!!  !!!WARNING!!!
-
-	  DO NOT ENABLE THIS OPTION UNLESS YOU REALLY, -REALLY- KNOW WHAT YOU ARE DOING!!!
-	  Exposes AMD IOMMU device internals in DebugFS.
-
-	  This option is -NOT- intended for production environments, and should
-	  not generally be enabled.
-
 source "drivers/iommu/intel/Kconfig"
 
 config IRQ_REMAP

drivers/iommu/Makefile

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
-obj-y += intel/
+obj-y += amd/ intel/
 obj-$(CONFIG_IOMMU_API) += iommu.o
 obj-$(CONFIG_IOMMU_API) += iommu-traces.o
 obj-$(CONFIG_IOMMU_API) += iommu-sysfs.o
@@ -12,9 +12,6 @@ obj-$(CONFIG_IOASID) += ioasid.o
 obj-$(CONFIG_IOMMU_IOVA) += iova.o
 obj-$(CONFIG_OF_IOMMU)	+= of_iommu.o
 obj-$(CONFIG_MSM_IOMMU) += msm_iommu.o
-obj-$(CONFIG_AMD_IOMMU) += amd/iommu.o amd/init.o amd/quirks.o
-obj-$(CONFIG_AMD_IOMMU_DEBUGFS) += amd/debugfs.o
-obj-$(CONFIG_AMD_IOMMU_V2) += amd/iommu_v2.o
 obj-$(CONFIG_ARM_SMMU) += arm_smmu.o
 arm_smmu-objs += arm-smmu.o arm-smmu-impl.o arm-smmu-qcom.o
 obj-$(CONFIG_ARM_SMMU_V3) += arm-smmu-v3.o

drivers/iommu/amd/Kconfig

@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# AMD IOMMU support
+config AMD_IOMMU
+	bool "AMD IOMMU support"
+	select SWIOTLB
+	select PCI_MSI
+	select PCI_ATS
+	select PCI_PRI
+	select PCI_PASID
+	select IOMMU_API
+	select IOMMU_IOVA
+	select IOMMU_DMA
+	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 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_V2
+	tristate "AMD IOMMU Version 2 driver"
+	depends on AMD_IOMMU
+	select MMU_NOTIFIER
+	help
+	  This option enables support for the AMD IOMMUv2 features of the IOMMU
+	  hardware. Select this option if you want to use devices that support
+	  the PCI PRI and PASID interface.
+
+config AMD_IOMMU_DEBUGFS
+	bool "Enable AMD IOMMU internals in DebugFS"
+	depends on AMD_IOMMU && IOMMU_DEBUGFS
+	help
+	  !!!WARNING!!!  !!!WARNING!!!  !!!WARNING!!!  !!!WARNING!!!
+
+	  DO NOT ENABLE THIS OPTION UNLESS YOU REALLY, -REALLY- KNOW WHAT YOU ARE DOING!!!
+	  Exposes AMD IOMMU device internals in DebugFS.
+
+	  This option is -NOT- intended for production environments, and should
+	  not generally be enabled.

drivers/iommu/amd/Makefile

@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_AMD_IOMMU) += iommu.o init.o quirks.o
+obj-$(CONFIG_AMD_IOMMU_DEBUGFS) += debugfs.o
+obj-$(CONFIG_AMD_IOMMU_V2) += iommu_v2.o