Changes in Kconfig

0fc8f6200d2313278fbf4539bbab74677c685531 - Merge drm/drm-fixes into drm-misc-fixes

Mon, 27 Apr 2026 10:26:49 +0200

Merge drm/drm-fixes into drm-misc-fixesGetting fixes and updates from v7.1-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/drivers/iommu/generic_pt/Kconfig

f4b369c6fe0ceaba2da2daff8c9eb415f85926dd - Merge branch 'next' into for-linus

Mon, 20 Apr 2026 03:28:57 +0200

Merge branch 'next' into for-linusPrepare input updates for 7.1 merge window. List of files: /linux/drivers/iommu/generic_pt/Kconfig

0421ccdfad0d92713a812a5aeb7d07b0ea7213c8 - Merge tag 'v7.0-rc3' into next

Thu, 12 Mar 2026 18:44:42 +0100

Merge tag 'v7.0-rc3' into nextSync up with the mainline to brig up the latest changes, specificallychanges to ALPS driver. List of files: /linux/drivers/iommu/generic_pt/Kconfig

f1d26d72f01556c787b1291729aa7a2ce37656a8 - Merge tag 'iommu-updates-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux

Thu, 16 Apr 2026 00:05:51 +0200

Merge tag 'iommu-updates-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linuxPull iommu updates from Joerg Roedel: "Core: - Support for RISC-V IO-page-table format in generic iommupt code ARM-SMMU Updates: - Introduction of an "invalidation array" for SMMUv3, which enables future scalability work and optimisations for devices with a large number of SMMUv3 instances - Update the conditions under which the SMMUv3 driver works around hardware errata for invalidation on MMU-700 implementations - Fix broken command filtering for the host view of NVIDIA's "cmdqv" SMMUv3 extension - MMU-500 device-tree binding additions for Qualcomm Eliza & Hawi SoCs Intel VT-d: - Support for dirty tracking on domains attached to PASID - Removal of unnecessary read*()/write*() wrappers - Improvements to the invalidation paths AMD Vi: - Race-condition fixed in debugfs code - Make log buffer allocation NUMA aware RISC-V: - IO-TLB flushing improvements - Minor fixes"* tag 'iommu-updates-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (48 commits) iommu/vt-d: Restore IOMMU_CAP_CACHE_COHERENCY dt-bindings: arm-smmu: qcom: Add compatible for Hawi SoC iommu/amd: Invalidate IRT cache for DMA aliases iommu/riscv: Remove overflows on the invalidation path iommu/amd: Fix clone_alias() to use the original device's devid iommu/vt-d: Remove the remaining pages along the invalidation path iommu/vt-d: Pass size_order to qi_desc_piotlb() not npages iommu/vt-d: Split piotlb invalidation into range and all iommu/vt-d: Remove dmar_writel() and dmar_writeq() iommu/vt-d: Remove dmar_readl() and dmar_readq() iommufd/selftest: Test dirty tracking on PASID iommu/vt-d: Support dirty tracking on PASID iommu/vt-d: Rename device_set_dirty_tracking() and pass dmar_domain pointer iommu/vt-d: Block PASID attachment to nested domain with dirty tracking iommu/dma: Always allow DMA-FQ when iommupt provides the iommu_domain iommu/riscv: Fix signedness bug iommu/amd: Fix illegal cap/mmio access in IOMMU debugfs iommu/amd: Fix illegal device-id access in IOMMU debugfs iommu/tegra241-cmdqv: Update uAPI to clarify HYP_OWN requirement iommu/tegra241-cmdqv: Set supports_cmd op in tegra241_vcmdq_hw_init() ... List of files: /linux/drivers/iommu/generic_pt/Kconfig

f8d5e7066d846c92ecac245134baf8a207becb65 - Merge branches 'fixes', 'arm/smmu/updates', 'arm/smmu/bindings', 'riscv', 'intel/vt-d', 'amd/amd-vi' and 'core' into next

Thu, 09 Apr 2026 14:18:27 +0200

Merge branches 'fixes', 'arm/smmu/updates', 'arm/smmu/bindings', 'riscv', 'intel/vt-d', 'amd/amd-vi' and 'core' into next List of files: /linux/drivers/iommu/generic_pt/Kconfig

e71e00127110dedc6a9e746178282b4dac97ed96 - iommupt: Add the RISC-V page table format

Fri, 27 Feb 2026 16:25:36 +0100

iommupt: Add the RISC-V page table formatThe RISC-V format is a fairly simple 5 level page table not unlike the x86one. It has optional support for a single contiguous page size of 64k (16x 4k).The specification describes a 32-bit format, the general code can supportit via a #define but the iommu side implementation has been left off untila user comes.Tested-by: Vincent Chen Acked-by: Paul Walmsley # arch/riscvReviewed-by: Tomasz Jeznach Tested-by: Tomasz Jeznach Signed-off-by: Jason Gunthorpe Signed-off-by: Joerg Roedel List of files: /linux/drivers/iommu/generic_pt/Kconfig

ec496f77b4c11036cc835d6f045fb5e5ef1e6530 - Merge branch 'for-6.20/sony' into for-linus

Mon, 09 Feb 2026 17:33:26 +0100

Merge branch 'for-6.20/sony' into for-linus- Support for Rock band 4 PS4 and PS5 guitars (Rosalie Wanders) List of files: /linux/drivers/iommu/generic_pt/Kconfig

cc4adab164b772a34b3340d644b7c4728498581e - Merge tag 'v6.19-rc1' into msm-next

Tue, 20 Jan 2026 23:06:55 +0100

Merge tag 'v6.19-rc1' into msm-nextMerge Linux 6.19-rc1 in order to catch up with other changes (e.g. UBWCconfig database defining UBWC_6).Signed-off-by: Dmitry Baryshkov List of files: /linux/drivers/iommu/generic_pt/Kconfig

5add3c3c280a35f7e258e9cef7607db5a2e56fdc - Merge drm/drm-next into drm-xe-next

Fri, 19 Dec 2025 11:51:22 +0100

Merge drm/drm-next into drm-xe-nextBackmerging to bring in 6.19-rc1. An important upstream bugfix andto help unblock PTL CI.Signed-off-by: Thomas Hellström List of files: /linux/drivers/iommu/generic_pt/Kconfig

ec439c38013550420aecc15988ae6acb670838c1 - Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 6.19-rc1

Wed, 17 Dec 2025 06:29:38 +0100

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 6.19-rc1Cross-merge BPF and other fixes after downstream PR.Signed-off-by: Alexei Starovoitov List of files: /linux/drivers/iommu/generic_pt/Kconfig

b8304863a3990d0f18c38e5b94191830a63ee1af - Merge drm/drm-next into drm-intel-next

Mon, 15 Dec 2025 14:24:02 +0100

Merge drm/drm-next into drm-intel-nextSync-up some display code needed for Async flips refactor.Signed-off-by: Rodrigo Vivi List of files: /linux/drivers/iommu/generic_pt/Kconfig

7f790dd21a931c61167f7bdc327aecf2cebad327 - Merge drm/drm-next into drm-misc-next

Mon, 15 Dec 2025 09:27:39 +0100

Merge drm/drm-next into drm-misc-nextLet's kickstart the v6.20 (7.0?) release cycle.Signed-off-by: Maxime Ripard List of files: /linux/drivers/iommu/generic_pt/Kconfig

24f171c7e145f43b9f187578e89b0982ce87e54c - Merge tag 'asoc-fix-v6.19-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

Sun, 21 Dec 2025 11:11:11 +0100

Merge tag 'asoc-fix-v6.19-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linusASoC: Fixes for v6.19We've been quite busy with fixes since the merge window, though not inany particularly exciting ways - the standout thing is the fix for _SXcontrols which were broken by a change to how we do clamping, otherwiseit's all fairly run of the mill fixes and quirks. List of files: /linux/drivers/iommu/generic_pt/Kconfig

84318277d6334c6981ab326d4acc87c6a6ddc9b8 - Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Mon, 15 Dec 2025 12:53:27 +0100

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixesPull in rc1 to include all changes since the merge window closed,and grab all fixes and changes from drm/drm-next.Signed-off-by: Maarten Lankhorst List of files: /linux/drivers/iommu/generic_pt/Kconfig

ce5cfb0fa20dc6454da039612e34325b7b4a8243 - Merge tag 'iommu-updates-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux

Fri, 05 Dec 2025 03:05:06 +0100

Merge tag 'iommu-updates-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linuxPull iommu updates from Joerg Roedel: - Introduction of the generic IO page-table framework with support for Intel and AMD IOMMU formats from Jason. This has good potential for unifying more IO page-table implementations and making future enhancements more easy. But this also needed quite some fixes during development. All known issues have been fixed, but my feeling is that there is a higher potential than usual that more might be needed. - Intel VT-d updates: - Use right invalidation hint in qi_desc_iotlb() - Reduce the scope of INTEL_IOMMU_FLOPPY_WA - ARM-SMMU updates: - Qualcomm device-tree binding updates for Kaanapali and Glymur SoCs and a new clock for the TBU. - Fix error handling if level 1 CD table allocation fails. - Permit more than the architectural maximum number of SMRs for funky Qualcomm mis-implementations of SMMUv2. - Mediatek driver: - MT8189 iommu support - Move ARM IO-pgtable selftests to kunit - Device leak fixes for a couple of drivers - Random smaller fixes and improvements* tag 'iommu-updates-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (81 commits) iommupt/vtd: Support mgaw's less than a 4 level walk for first stage iommupt/vtd: Allow VT-d to have a larger table top than the vasz requires powerpc/pseries/svm: Make mem_encrypt.h self contained genpt: Make GENERIC_PT invisible iommupt: Avoid a compiler bug with sw_bit iommu/arm-smmu-qcom: Enable use of all SMR groups when running bare-metal iommupt: Fix unlikely flows in increase_top() iommu/amd: Propagate the error code returned by __modify_irte_ga() in modify_irte_ga() MAINTAINERS: Update my email address iommu/arm-smmu-v3: Fix error check in arm_smmu_alloc_cd_tables dt-bindings: iommu: qcom_iommu: Allow 'tbu' clock iommu/vt-d: Restore previous domain::aperture_end calculation iommu/vt-d: Fix unused invalidation hint in qi_desc_iotlb iommu/vt-d: Set INTEL_IOMMU_FLOPPY_WA depend on BLK_DEV_FD iommu/tegra: fix device leak on probe_device() iommu/sun50i: fix device leak on of_xlate() iommu/omap: simplify probe_device() error handling iommu/omap: fix device leaks on probe_device() iommu/mediatek-v1: add missing larb count sanity check iommu/mediatek-v1: fix device leaks on probe() ... List of files: /linux/drivers/iommu/generic_pt/Kconfig

0d081b16946ef449fcb35b6edc1ef6f9fea6f0a0 - Merge branches 'arm/smmu/updates', 'arm/smmu/bindings', 'mediatek', 'nvidia/tegra', 'intel/vt-d', 'amd/amd-vi' and 'core' into next

Fri, 28 Nov 2025 08:44:21 +0100

Merge branches 'arm/smmu/updates', 'arm/smmu/bindings', 'mediatek', 'nvidia/tegra', 'intel/vt-d', 'amd/amd-vi' and 'core' into next List of files: /linux/drivers/iommu/generic_pt/Kconfig

01569c216ddeda94d3d8ffb8a5241ba3b2d72a5a - genpt: Make GENERIC_PT invisible

Wed, 12 Nov 2025 15:08:05 +0100

genpt: Make GENERIC_PT invisibleThere is no point in asking the user about the Generic Radix PageTable API: - All IOMMU drivers that use this API already select GENERIC_PT when needed, - Most users probably do not know what to answer anyway.Fixes: 7c5b184db7145fd4 ("genpt: Generic Page Table base API")Signed-off-by: Geert Uytterhoeven Reviewed-by: Jason Gunthorpe Signed-off-by: Joerg Roedel List of files: /linux/drivers/iommu/generic_pt/Kconfig

5cb637d9425d7c6282b9f7470d273e4ecac6efb8 - iommupt: Documentation fixes

Thu, 06 Nov 2025 20:02:14 +0100

iommupt: Documentation fixesSome adjustments pointed out by Randy: "decodes an full 64-bit" -> "decodes the full 64 bit" Correct the function parameter name for iova_to_phys() Use the recommended section heading style.Suggested-by: Randy Dunlap Fixes: ab0b572847ac ("genpt: Add Documentation/ files")Fixes: 879ced2bab1b ("iommupt: Add the AMD IOMMU v1 page table format")Fixes: 9d4c274cd7d5 ("iommupt: Add iova_to_phys op")Signed-off-by: Jason Gunthorpe Reviewed-by: Randy Dunlap Tested-by: Randy Dunlap Signed-off-by: Joerg Roedel List of files: /linux/drivers/iommu/generic_pt/Kconfig

5448c1558f60d4051c90938f2878c6fb20e2982a - iommupt: Add the Intel VT-d second stage page table format

Thu, 23 Oct 2025 20:22:33 +0200

iommupt: Add the Intel VT-d second stage page table formatThe VT-d second stage format is almost the same as the x86 PAE format,except the bit encodings in the PTE are different and a few new PTEfeatures, like force coherency are present.Among all the formats it is unique in not having a designated present bit.Comparing the performance of several operations to the existing version:iommu_map() pgsz ,avg new,old ns, min new,old ns , min % (+ve is better) 2^12, 53,66 , 50,64 , 21.21 2^21, 59,70 , 56,67 , 16.16 2^30, 54,66 , 52,63 , 17.17 256*2^12, 384,524 , 337,516 , 34.34 256*2^21, 387,632 , 336,626 , 46.46 256*2^30, 376,629 , 323,623 , 48.48iommu_unmap() pgsz ,avg new,old ns, min new,old ns , min % (+ve is better) 2^12, 67,86 , 63,84 , 25.25 2^21, 64,84 , 59,80 , 26.26 2^30, 59,78 , 56,74 , 24.24 256*2^12, 216,335 , 198,317 , 37.37 256*2^21, 245,350 , 232,344 , 32.32 256*2^30, 248,345 , 226,339 , 33.33Cc: Tina Zhang Cc: Kevin Tian Cc: Lu Baolu Reviewed-by: Lu Baolu Reviewed-by: Kevin Tian Signed-off-by: Jason Gunthorpe Signed-off-by: Joerg Roedel List of files: /linux/drivers/iommu/generic_pt/Kconfig

aef5de756ea871ab44e3a1a87be6c944e6587c51 - iommupt: Add the x86 64 bit page table format

Tue, 04 Nov 2025 19:30:10 +0100

iommupt: Add the x86 64 bit page table formatThis is used by x86 CPUs and can be used in AMD/VT-d x86 IOMMUs. When ax86 IOMMU is running SVA the MM will be using this format.This implementation follows the AMD v2 io-pgtable version.There is nothing remarkable here, the format can have 4 or 5 levels andlimited support for different page sizes. No contiguous pages support.x86 uses a sign extension mechanism where the top bits of the VA mustmatch the sign bit. The core code supports this throughPT_FEAT_SIGN_EXTEND which creates and upper and lower VA range. All thenew operations will work correctly in both spaces, however currently thereis no way to report the upper space to other layers. Future patches canimprove that.In principle this can support 3 page tables levels matching the 32 bit PAEtable format, but no iommu driver needs this. The focus is on the modern64 bit 4 and 5 level formats.Comparing the performance of several operations to the existing version:iommu_map() pgsz ,avg new,old ns, min new,old ns , min % (+ve is better) 2^12, 71,61 , 66,58 , -13.13 2^21, 66,60 , 61,55 , -10.10 2^30, 59,56 , 56,54 , -3.03 256*2^12, 392,1360 , 345,1289 , 73.73 256*2^21, 383,1159 , 335,1145 , 70.70 256*2^30, 378,965 , 331,892 , 62.62iommu_unmap() pgsz ,avg new,old ns, min new,old ns , min % (+ve is better) 2^12, 77,71 , 73,68 , -7.07 2^21, 76,70 , 70,66 , -6.06 2^30, 69,66 , 66,63 , -4.04 256*2^12, 225,899 , 210,870 , 75.75 256*2^21, 262,722 , 248,710 , 65.65 256*2^30, 251,643 , 244,634 , 61.61The small -ve values in the iommu_unmap() are due to the core code callingiommu_pgsize() before invoking the domain op. This is unncessary with thisimplementation. Future work optimizes this and gets to 2%, 4%, 3%.Reviewed-by: Kevin Tian Reviewed-by: Vasant Hegde Tested-by: Alejandro Jimenez Tested-by: Pasha Tatashin Signed-off-by: Jason Gunthorpe Signed-off-by: Joerg Roedel List of files: /linux/drivers/iommu/generic_pt/Kconfig