mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-01-20 06:26:09 -05:00
4bbdb725a3
Pull iommu updates from Joerg Roedel:
"Core changes:
- Make default-domains mandatory for all IOMMU drivers
- Remove group refcounting
- Add generic_single_device_group() helper and consolidate drivers
- Cleanup map/unmap ops
- Scaling improvements for the IOVA rcache depot
- Convert dart & iommufd to the new domain_alloc_paging()
ARM-SMMU:
- Device-tree binding update:
- Add qcom,sm7150-smmu-v2 for Adreno on SM7150 SoC
- SMMUv2:
- Support for Qualcomm SDM670 (MDSS) and SM7150 SoCs
- SMMUv3:
- Large refactoring of the context descriptor code to move the CD
table into the master, paving the way for '->set_dev_pasid()'
support on non-SVA domains
- Minor cleanups to the SVA code
Intel VT-d:
- Enable debugfs to dump domain attached to a pasid
- Remove an unnecessary inline function
AMD IOMMU:
- Initial patches for SVA support (not complete yet)
S390 IOMMU:
- DMA-API conversion and optimized IOTLB flushing
And some smaller fixes and improvements"
* tag 'iommu-updates-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (102 commits)
iommu/dart: Remove the force_bypass variable
iommu/dart: Call apple_dart_finalize_domain() as part of alloc_paging()
iommu/dart: Convert to domain_alloc_paging()
iommu/dart: Move the blocked domain support to a global static
iommu/dart: Use static global identity domains
iommufd: Convert to alloc_domain_paging()
iommu/vt-d: Use ops->blocked_domain
iommu/vt-d: Update the definition of the blocking domain
iommu: Move IOMMU_DOMAIN_BLOCKED global statics to ops->blocked_domain
Revert "iommu/vt-d: Remove unused function"
iommu/amd: Remove DMA_FQ type from domain allocation path
iommu: change iommu_map_sgtable to return signed values
iommu/virtio: Add __counted_by for struct viommu_request and use struct_size()
iommu/vt-d: debugfs: Support dumping a specified page table
iommu/vt-d: debugfs: Create/remove debugfs file per {device, pasid}
iommu/vt-d: debugfs: Dump entry pointing to huge page
iommu/vt-d: Remove unused function
iommu/arm-smmu-v3-sva: Remove bond refcount
iommu/arm-smmu-v3-sva: Remove unused iommu_sva handle
iommu/arm-smmu-v3: Rename cdcfg to cd_table
...
37 lines
1.2 KiB
Plaintext
37 lines
1.2 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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# AMD IOMMU support
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config AMD_IOMMU
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bool "AMD IOMMU support"
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select SWIOTLB
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select PCI_MSI
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select PCI_ATS
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select PCI_PRI
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select PCI_PASID
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select IOMMU_API
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select IOMMU_IOVA
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select IOMMU_IO_PGTABLE
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select IOMMUFD_DRIVER if IOMMUFD
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depends on X86_64 && PCI && ACPI && HAVE_CMPXCHG_DOUBLE
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help
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With this option you can enable support for AMD IOMMU hardware in
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your system. An IOMMU is a hardware component which provides
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remapping of DMA memory accesses from devices. With an AMD IOMMU you
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can isolate the DMA memory of different devices and protect the
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system from misbehaving device drivers or hardware.
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You can find out if your system has an AMD IOMMU if you look into
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your BIOS for an option to enable it or if you have an IVRS ACPI
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table.
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config AMD_IOMMU_DEBUGFS
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bool "Enable AMD IOMMU internals in DebugFS"
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depends on AMD_IOMMU && IOMMU_DEBUGFS
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help
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!!!WARNING!!! !!!WARNING!!! !!!WARNING!!! !!!WARNING!!!
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DO NOT ENABLE THIS OPTION UNLESS YOU REALLY, -REALLY- KNOW WHAT YOU ARE DOING!!!
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Exposes AMD IOMMU device internals in DebugFS.
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This option is -NOT- intended for production environments, and should
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not generally be enabled.
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