* [PATCH v2 0/2] iommu: Move AMD and Intel Kconfig + Makefile bits into their directories
@ 2020-06-30 20:06 Jerry Snitselaar
2020-06-30 20:06 ` [PATCH v2 1/2] iommu/vt-d: Move Kconfig and Makefile bits down into intel directory Jerry Snitselaar
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Jerry Snitselaar @ 2020-06-30 20:06 UTC (permalink / raw)
To: linux-kernel, iommu
This patchset imeplements the suggestion from Linus to move the
Kconfig and Makefile bits for AMD and Intel into their respective
directories.
v2: Rebase against v5.8-rc3. Dropped ---help--- changes from Kconfig as that was
dealt with in systemwide cleanup.
Jerry Snitselaar (2):
iommu/vt-d: Move Kconfig and Makefile bits down into intel directory
iommu/amd: Move Kconfig and Makefile bits down into amd directory
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^ permalink raw reply [flat|nested] 6+ messages in thread* [PATCH v2 1/2] iommu/vt-d: Move Kconfig and Makefile bits down into intel directory 2020-06-30 20:06 [PATCH v2 0/2] iommu: Move AMD and Intel Kconfig + Makefile bits into their directories Jerry Snitselaar @ 2020-06-30 20:06 ` Jerry Snitselaar 2020-07-01 1:49 ` Lu Baolu 2020-06-30 20:06 ` [PATCH v2 2/2] iommu/amd: Move Kconfig and Makefile bits down into amd directory Jerry Snitselaar 2020-07-27 22:47 ` [PATCH v2 0/2] iommu: Move AMD and Intel Kconfig + Makefile bits into their directories Jerry Snitselaar 2 siblings, 1 reply; 6+ messages in thread From: Jerry Snitselaar @ 2020-06-30 20:06 UTC (permalink / raw) To: linux-kernel, iommu Move Intel Kconfig and Makefile bits down into intel directory with the rest of the Intel specific files. Cc: Joerg Roedel <joro@8bytes.org> Cc: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com> --- drivers/iommu/Kconfig | 86 +----------------------------------- drivers/iommu/Makefile | 8 +--- drivers/iommu/intel/Kconfig | 86 ++++++++++++++++++++++++++++++++++++ drivers/iommu/intel/Makefile | 7 +++ 4 files changed, 96 insertions(+), 91 deletions(-) create mode 100644 drivers/iommu/intel/Kconfig create mode 100644 drivers/iommu/intel/Makefile diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 6dc49ed8377a..281cd6bd0fe0 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -176,91 +176,7 @@ config AMD_IOMMU_DEBUGFS This option is -NOT- intended for production environments, and should not generally be enabled. -# Intel IOMMU support -config DMAR_TABLE - bool - -config INTEL_IOMMU - bool "Support for Intel IOMMU using DMA Remapping Devices" - depends on PCI_MSI && ACPI && (X86 || IA64) - select IOMMU_API - select IOMMU_IOVA - select NEED_DMA_MAP_STATE - select DMAR_TABLE - select SWIOTLB - select IOASID - 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 INTEL_IOMMU_DEBUGFS - bool "Export Intel IOMMU internals in Debugfs" - depends on INTEL_IOMMU && IOMMU_DEBUGFS - help - !!!WARNING!!! - - DO NOT ENABLE THIS OPTION UNLESS YOU REALLY KNOW WHAT YOU ARE DOING!!! - - Expose Intel IOMMU internals in Debugfs. - - This option is -NOT- intended for production environments, and should - only be enabled for debugging Intel IOMMU. - -config INTEL_IOMMU_SVM - bool "Support for Shared Virtual Memory with Intel IOMMU" - depends on INTEL_IOMMU && X86_64 - select PCI_PASID - select PCI_PRI - select MMU_NOTIFIER - select IOASID - help - Shared Virtual Memory (SVM) provides a facility for devices - to access DMA resources through process address space by - means of a Process Address Space ID (PASID). - -config INTEL_IOMMU_DEFAULT_ON - def_bool y - prompt "Enable Intel DMA Remapping Devices by default" - depends on INTEL_IOMMU - 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 INTEL_IOMMU_BROKEN_GFX_WA - bool "Workaround broken graphics drivers (going away soon)" - depends on INTEL_IOMMU && 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 INTEL_IOMMU_FLOPPY_WA - def_bool y - depends on INTEL_IOMMU && 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 INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON - bool "Enable Intel IOMMU scalable mode by default" - depends on INTEL_IOMMU - help - Selecting this option will enable by default the scalable mode if - hardware presents the capability. The scalable mode is defined in - VT-d 3.0. The scalable mode capability could be checked by reading - /sys/devices/virtual/iommu/dmar*/intel-iommu/ecap. If this option - is not selected, scalable mode support could also be enabled by - passing intel_iommu=sm_on to the kernel. If not sure, please use - the default value. +source "drivers/iommu/intel/Kconfig" config IRQ_REMAP bool "Support for Interrupt Remapping" diff --git a/drivers/iommu/Makefile b/drivers/iommu/Makefile index 342190196dfb..71dd2f382e78 100644 --- a/drivers/iommu/Makefile +++ b/drivers/iommu/Makefile @@ -1,4 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 +obj-y += intel/ obj-$(CONFIG_IOMMU_API) += iommu.o obj-$(CONFIG_IOMMU_API) += iommu-traces.o obj-$(CONFIG_IOMMU_API) += iommu-sysfs.o @@ -17,13 +18,8 @@ obj-$(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 -obj-$(CONFIG_DMAR_TABLE) += intel/dmar.o -obj-$(CONFIG_INTEL_IOMMU) += intel/iommu.o intel/pasid.o -obj-$(CONFIG_INTEL_IOMMU) += intel/trace.o -obj-$(CONFIG_INTEL_IOMMU_DEBUGFS) += intel/debugfs.o -obj-$(CONFIG_INTEL_IOMMU_SVM) += intel/svm.o obj-$(CONFIG_IPMMU_VMSA) += ipmmu-vmsa.o -obj-$(CONFIG_IRQ_REMAP) += intel/irq_remapping.o irq_remapping.o +obj-$(CONFIG_IRQ_REMAP) += irq_remapping.o obj-$(CONFIG_MTK_IOMMU) += mtk_iommu.o obj-$(CONFIG_MTK_IOMMU_V1) += mtk_iommu_v1.o obj-$(CONFIG_OMAP_IOMMU) += omap-iommu.o diff --git a/drivers/iommu/intel/Kconfig b/drivers/iommu/intel/Kconfig new file mode 100644 index 000000000000..877beec9d987 --- /dev/null +++ b/drivers/iommu/intel/Kconfig @@ -0,0 +1,86 @@ +# SPDX-License-Identifier: GPL-2.0-only +# Intel IOMMU support +config DMAR_TABLE + bool + +config INTEL_IOMMU + bool "Support for Intel IOMMU using DMA Remapping Devices" + depends on PCI_MSI && ACPI && (X86 || IA64) + select IOMMU_API + select IOMMU_IOVA + select NEED_DMA_MAP_STATE + select DMAR_TABLE + select SWIOTLB + select IOASID + 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 INTEL_IOMMU_DEBUGFS + bool "Export Intel IOMMU internals in Debugfs" + depends on INTEL_IOMMU && IOMMU_DEBUGFS + help + !!!WARNING!!! + + DO NOT ENABLE THIS OPTION UNLESS YOU REALLY KNOW WHAT YOU ARE DOING!!! + + Expose Intel IOMMU internals in Debugfs. + + This option is -NOT- intended for production environments, and should + only be enabled for debugging Intel IOMMU. + +config INTEL_IOMMU_SVM + bool "Support for Shared Virtual Memory with Intel IOMMU" + depends on INTEL_IOMMU && X86_64 + select PCI_PASID + select PCI_PRI + select MMU_NOTIFIER + select IOASID + help + Shared Virtual Memory (SVM) provides a facility for devices + to access DMA resources through process address space by + means of a Process Address Space ID (PASID). + +config INTEL_IOMMU_DEFAULT_ON + def_bool y + prompt "Enable Intel DMA Remapping Devices by default" + depends on INTEL_IOMMU + 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 INTEL_IOMMU_BROKEN_GFX_WA + bool "Workaround broken graphics drivers (going away soon)" + depends on INTEL_IOMMU && 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 INTEL_IOMMU_FLOPPY_WA + def_bool y + depends on INTEL_IOMMU && 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 INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON + bool "Enable Intel IOMMU scalable mode by default" + depends on INTEL_IOMMU + help + Selecting this option will enable by default the scalable mode if + hardware presents the capability. The scalable mode is defined in + VT-d 3.0. The scalable mode capability could be checked by reading + /sys/devices/virtual/iommu/dmar*/intel-iommu/ecap. If this option + is not selected, scalable mode support could also be enabled by + passing intel_iommu=sm_on to the kernel. If not sure, please use + the default value. diff --git a/drivers/iommu/intel/Makefile b/drivers/iommu/intel/Makefile new file mode 100644 index 000000000000..fb8e1e8c8029 --- /dev/null +++ b/drivers/iommu/intel/Makefile @@ -0,0 +1,7 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_DMAR_TABLE) += dmar.o +obj-$(CONFIG_INTEL_IOMMU) += iommu.o pasid.o +obj-$(CONFIG_INTEL_IOMMU) += trace.o +obj-$(CONFIG_INTEL_IOMMU_DEBUGFS) += debugfs.o +obj-$(CONFIG_INTEL_IOMMU_SVM) += svm.o +obj-$(CONFIG_IRQ_REMAP) += irq_remapping.o -- 2.27.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v2 1/2] iommu/vt-d: Move Kconfig and Makefile bits down into intel directory 2020-06-30 20:06 ` [PATCH v2 1/2] iommu/vt-d: Move Kconfig and Makefile bits down into intel directory Jerry Snitselaar @ 2020-07-01 1:49 ` Lu Baolu 0 siblings, 0 replies; 6+ messages in thread From: Lu Baolu @ 2020-07-01 1:49 UTC (permalink / raw) To: Jerry Snitselaar, linux-kernel, iommu Hi Jerry, On 7/1/20 4:06 AM, Jerry Snitselaar wrote: > Move Intel Kconfig and Makefile bits down into intel directory > with the rest of the Intel specific files. > > Cc: Joerg Roedel <joro@8bytes.org> > Cc: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Best regards, baolu > Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com> > --- > drivers/iommu/Kconfig | 86 +----------------------------------- > drivers/iommu/Makefile | 8 +--- > drivers/iommu/intel/Kconfig | 86 ++++++++++++++++++++++++++++++++++++ > drivers/iommu/intel/Makefile | 7 +++ > 4 files changed, 96 insertions(+), 91 deletions(-) > create mode 100644 drivers/iommu/intel/Kconfig > create mode 100644 drivers/iommu/intel/Makefile > > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig > index 6dc49ed8377a..281cd6bd0fe0 100644 > --- a/drivers/iommu/Kconfig > +++ b/drivers/iommu/Kconfig > @@ -176,91 +176,7 @@ config AMD_IOMMU_DEBUGFS > This option is -NOT- intended for production environments, and should > not generally be enabled. > > -# Intel IOMMU support > -config DMAR_TABLE > - bool > - > -config INTEL_IOMMU > - bool "Support for Intel IOMMU using DMA Remapping Devices" > - depends on PCI_MSI && ACPI && (X86 || IA64) > - select IOMMU_API > - select IOMMU_IOVA > - select NEED_DMA_MAP_STATE > - select DMAR_TABLE > - select SWIOTLB > - select IOASID > - 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 INTEL_IOMMU_DEBUGFS > - bool "Export Intel IOMMU internals in Debugfs" > - depends on INTEL_IOMMU && IOMMU_DEBUGFS > - help > - !!!WARNING!!! > - > - DO NOT ENABLE THIS OPTION UNLESS YOU REALLY KNOW WHAT YOU ARE DOING!!! > - > - Expose Intel IOMMU internals in Debugfs. > - > - This option is -NOT- intended for production environments, and should > - only be enabled for debugging Intel IOMMU. > - > -config INTEL_IOMMU_SVM > - bool "Support for Shared Virtual Memory with Intel IOMMU" > - depends on INTEL_IOMMU && X86_64 > - select PCI_PASID > - select PCI_PRI > - select MMU_NOTIFIER > - select IOASID > - help > - Shared Virtual Memory (SVM) provides a facility for devices > - to access DMA resources through process address space by > - means of a Process Address Space ID (PASID). > - > -config INTEL_IOMMU_DEFAULT_ON > - def_bool y > - prompt "Enable Intel DMA Remapping Devices by default" > - depends on INTEL_IOMMU > - 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 INTEL_IOMMU_BROKEN_GFX_WA > - bool "Workaround broken graphics drivers (going away soon)" > - depends on INTEL_IOMMU && 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 INTEL_IOMMU_FLOPPY_WA > - def_bool y > - depends on INTEL_IOMMU && 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 INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON > - bool "Enable Intel IOMMU scalable mode by default" > - depends on INTEL_IOMMU > - help > - Selecting this option will enable by default the scalable mode if > - hardware presents the capability. The scalable mode is defined in > - VT-d 3.0. The scalable mode capability could be checked by reading > - /sys/devices/virtual/iommu/dmar*/intel-iommu/ecap. If this option > - is not selected, scalable mode support could also be enabled by > - passing intel_iommu=sm_on to the kernel. If not sure, please use > - the default value. > +source "drivers/iommu/intel/Kconfig" > > config IRQ_REMAP > bool "Support for Interrupt Remapping" > diff --git a/drivers/iommu/Makefile b/drivers/iommu/Makefile > index 342190196dfb..71dd2f382e78 100644 > --- a/drivers/iommu/Makefile > +++ b/drivers/iommu/Makefile > @@ -1,4 +1,5 @@ > # SPDX-License-Identifier: GPL-2.0 > +obj-y += intel/ > obj-$(CONFIG_IOMMU_API) += iommu.o > obj-$(CONFIG_IOMMU_API) += iommu-traces.o > obj-$(CONFIG_IOMMU_API) += iommu-sysfs.o > @@ -17,13 +18,8 @@ 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-$(CONFIG_ARM_SMMU_V3) += arm-smmu-v3.o > -obj-$(CONFIG_DMAR_TABLE) += intel/dmar.o > -obj-$(CONFIG_INTEL_IOMMU) += intel/iommu.o intel/pasid.o > -obj-$(CONFIG_INTEL_IOMMU) += intel/trace.o > -obj-$(CONFIG_INTEL_IOMMU_DEBUGFS) += intel/debugfs.o > -obj-$(CONFIG_INTEL_IOMMU_SVM) += intel/svm.o > obj-$(CONFIG_IPMMU_VMSA) += ipmmu-vmsa.o > -obj-$(CONFIG_IRQ_REMAP) += intel/irq_remapping.o irq_remapping.o > +obj-$(CONFIG_IRQ_REMAP) += irq_remapping.o > obj-$(CONFIG_MTK_IOMMU) += mtk_iommu.o > obj-$(CONFIG_MTK_IOMMU_V1) += mtk_iommu_v1.o > obj-$(CONFIG_OMAP_IOMMU) += omap-iommu.o > diff --git a/drivers/iommu/intel/Kconfig b/drivers/iommu/intel/Kconfig > new file mode 100644 > index 000000000000..877beec9d987 > --- /dev/null > +++ b/drivers/iommu/intel/Kconfig > @@ -0,0 +1,86 @@ > +# SPDX-License-Identifier: GPL-2.0-only > +# Intel IOMMU support > +config DMAR_TABLE > + bool > + > +config INTEL_IOMMU > + bool "Support for Intel IOMMU using DMA Remapping Devices" > + depends on PCI_MSI && ACPI && (X86 || IA64) > + select IOMMU_API > + select IOMMU_IOVA > + select NEED_DMA_MAP_STATE > + select DMAR_TABLE > + select SWIOTLB > + select IOASID > + 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 INTEL_IOMMU_DEBUGFS > + bool "Export Intel IOMMU internals in Debugfs" > + depends on INTEL_IOMMU && IOMMU_DEBUGFS > + help > + !!!WARNING!!! > + > + DO NOT ENABLE THIS OPTION UNLESS YOU REALLY KNOW WHAT YOU ARE DOING!!! > + > + Expose Intel IOMMU internals in Debugfs. > + > + This option is -NOT- intended for production environments, and should > + only be enabled for debugging Intel IOMMU. > + > +config INTEL_IOMMU_SVM > + bool "Support for Shared Virtual Memory with Intel IOMMU" > + depends on INTEL_IOMMU && X86_64 > + select PCI_PASID > + select PCI_PRI > + select MMU_NOTIFIER > + select IOASID > + help > + Shared Virtual Memory (SVM) provides a facility for devices > + to access DMA resources through process address space by > + means of a Process Address Space ID (PASID). > + > +config INTEL_IOMMU_DEFAULT_ON > + def_bool y > + prompt "Enable Intel DMA Remapping Devices by default" > + depends on INTEL_IOMMU > + 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 INTEL_IOMMU_BROKEN_GFX_WA > + bool "Workaround broken graphics drivers (going away soon)" > + depends on INTEL_IOMMU && 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 INTEL_IOMMU_FLOPPY_WA > + def_bool y > + depends on INTEL_IOMMU && 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 INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON > + bool "Enable Intel IOMMU scalable mode by default" > + depends on INTEL_IOMMU > + help > + Selecting this option will enable by default the scalable mode if > + hardware presents the capability. The scalable mode is defined in > + VT-d 3.0. The scalable mode capability could be checked by reading > + /sys/devices/virtual/iommu/dmar*/intel-iommu/ecap. If this option > + is not selected, scalable mode support could also be enabled by > + passing intel_iommu=sm_on to the kernel. If not sure, please use > + the default value. > diff --git a/drivers/iommu/intel/Makefile b/drivers/iommu/intel/Makefile > new file mode 100644 > index 000000000000..fb8e1e8c8029 > --- /dev/null > +++ b/drivers/iommu/intel/Makefile > @@ -0,0 +1,7 @@ > +# SPDX-License-Identifier: GPL-2.0 > +obj-$(CONFIG_DMAR_TABLE) += dmar.o > +obj-$(CONFIG_INTEL_IOMMU) += iommu.o pasid.o > +obj-$(CONFIG_INTEL_IOMMU) += trace.o > +obj-$(CONFIG_INTEL_IOMMU_DEBUGFS) += debugfs.o > +obj-$(CONFIG_INTEL_IOMMU_SVM) += svm.o > +obj-$(CONFIG_IRQ_REMAP) += irq_remapping.o > _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v2 2/2] iommu/amd: Move Kconfig and Makefile bits down into amd directory 2020-06-30 20:06 [PATCH v2 0/2] iommu: Move AMD and Intel Kconfig + Makefile bits into their directories Jerry Snitselaar 2020-06-30 20:06 ` [PATCH v2 1/2] iommu/vt-d: Move Kconfig and Makefile bits down into intel directory Jerry Snitselaar @ 2020-06-30 20:06 ` Jerry Snitselaar 2020-07-27 22:47 ` [PATCH v2 0/2] iommu: Move AMD and Intel Kconfig + Makefile bits into their directories Jerry Snitselaar 2 siblings, 0 replies; 6+ messages in thread From: Jerry Snitselaar @ 2020-06-30 20:06 UTC (permalink / raw) To: linux-kernel, iommu Move AMD Kconfig and Makefile bits down into the amd directory with the rest of the AMD specific files. Cc: Joerg Roedel <joro@8bytes.org> Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com> --- drivers/iommu/Kconfig | 45 +------------------------------------- drivers/iommu/Makefile | 5 +---- drivers/iommu/amd/Kconfig | 44 +++++++++++++++++++++++++++++++++++++ drivers/iommu/amd/Makefile | 4 ++++ 4 files changed, 50 insertions(+), 48 deletions(-) create mode 100644 drivers/iommu/amd/Kconfig create mode 100644 drivers/iommu/amd/Makefile diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 281cd6bd0fe0..24000e7ed0fa 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -132,50 +132,7 @@ 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_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/amd/Kconfig" source "drivers/iommu/intel/Kconfig" config IRQ_REMAP diff --git a/drivers/iommu/Makefile b/drivers/iommu/Makefile index 71dd2f382e78..f356bc12b1c7 100644 --- a/drivers/iommu/Makefile +++ b/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 diff --git a/drivers/iommu/amd/Kconfig b/drivers/iommu/amd/Kconfig new file mode 100644 index 000000000000..1f061d91e0b8 --- /dev/null +++ b/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. diff --git a/drivers/iommu/amd/Makefile b/drivers/iommu/amd/Makefile new file mode 100644 index 000000000000..dc5a2fa4fd37 --- /dev/null +++ b/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 -- 2.27.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v2 0/2] iommu: Move AMD and Intel Kconfig + Makefile bits into their directories 2020-06-30 20:06 [PATCH v2 0/2] iommu: Move AMD and Intel Kconfig + Makefile bits into their directories Jerry Snitselaar 2020-06-30 20:06 ` [PATCH v2 1/2] iommu/vt-d: Move Kconfig and Makefile bits down into intel directory Jerry Snitselaar 2020-06-30 20:06 ` [PATCH v2 2/2] iommu/amd: Move Kconfig and Makefile bits down into amd directory Jerry Snitselaar @ 2020-07-27 22:47 ` Jerry Snitselaar 2020-07-29 12:16 ` Joerg Roedel 2 siblings, 1 reply; 6+ messages in thread From: Jerry Snitselaar @ 2020-07-27 22:47 UTC (permalink / raw) Cc: iommu, linux-kernel Jerry Snitselaar @ 2020-06-30 13:06 MST: > This patchset imeplements the suggestion from Linus to move the > Kconfig and Makefile bits for AMD and Intel into their respective > directories. > > v2: Rebase against v5.8-rc3. Dropped ---help--- changes from Kconfig as that was > dealt with in systemwide cleanup. > > Jerry Snitselaar (2): > iommu/vt-d: Move Kconfig and Makefile bits down into intel directory > iommu/amd: Move Kconfig and Makefile bits down into amd directory > > > _______________________________________________ > iommu mailing list > iommu@lists.linux-foundation.org > https://lists.linuxfoundation.org/mailman/listinfo/iommu Hi Joerg, Looks like I forgot to cc you on this cover letter for v2. Does this work for you now? Regards, Jerry _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2 0/2] iommu: Move AMD and Intel Kconfig + Makefile bits into their directories 2020-07-27 22:47 ` [PATCH v2 0/2] iommu: Move AMD and Intel Kconfig + Makefile bits into their directories Jerry Snitselaar @ 2020-07-29 12:16 ` Joerg Roedel 0 siblings, 0 replies; 6+ messages in thread From: Joerg Roedel @ 2020-07-29 12:16 UTC (permalink / raw) To: Jerry Snitselaar; +Cc: iommu, linux-kernel On Mon, Jul 27, 2020 at 03:47:58PM -0700, Jerry Snitselaar wrote: > Looks like I forgot to cc you on this cover letter for v2. > Does this work for you now? Got it, applied now, thanks Jerry. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-07-29 12:16 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-06-30 20:06 [PATCH v2 0/2] iommu: Move AMD and Intel Kconfig + Makefile bits into their directories Jerry Snitselaar 2020-06-30 20:06 ` [PATCH v2 1/2] iommu/vt-d: Move Kconfig and Makefile bits down into intel directory Jerry Snitselaar 2020-07-01 1:49 ` Lu Baolu 2020-06-30 20:06 ` [PATCH v2 2/2] iommu/amd: Move Kconfig and Makefile bits down into amd directory Jerry Snitselaar 2020-07-27 22:47 ` [PATCH v2 0/2] iommu: Move AMD and Intel Kconfig + Makefile bits into their directories Jerry Snitselaar 2020-07-29 12:16 ` Joerg Roedel
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