[git pull] IOMMU Updates for Linux v5.10

From: Joerg Roedel
Date: Tue Oct 13 2020 - 12:04:07 EST

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Hi Linus,

there is a minor conflict this time in include/linux/iommu.h which
should be easy to resolve. I would attach my resolution, but somehow git
[show|log] didn't show it to me.

The conflict is in a function signature, specifically the type of the
pasid parameter. My resolution used iopasid_t.

With that in mind:

The following changes since commit 549738f15da0e5a00275977623be199fbbf7df50:

Linux 5.9-rc8 (2020-10-04 16:04:34 -0700)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git tags/iommu-updates-v5.10

for you to fetch changes up to 7e3c3883c381aeda903778d7e99fc4cd523be610:

Merge branches 'arm/allwinner', 'arm/mediatek', 'arm/renesas', 'arm/tegra', 'arm/qcom', 'arm/smmu', 'ppc/pamu', 'x86/amd', 'x86/vt-d' and 'core' into next (2020-10-07 11:51:59 +0200)

----------------------------------------------------------------
IOMMU Updates for Linux v5.10

Including:

- ARM-SMMU Updates from Will:

- Continued SVM enablement, where page-table is shared with
CPU

- Groundwork to support integrated SMMU with Adreno GPU

- Allow disabling of MSI-based polling on the kernel
command-line

- Minor driver fixes and cleanups (octal permissions, error
messages, ...)

- Secure Nested Paging Support for AMD IOMMU. The IOMMU will
fault when a device tries DMA on memory owned by a guest. This
needs new fault-types as well as a rewrite of the IOMMU memory
semaphore for command completions.

- Allow broken Intel IOMMUs (wrong address widths reported) to
still be used for interrupt remapping.

- IOMMU UAPI updates for supporting vSVA, where the IOMMU can
access address spaces of processes running in a VM.

- Support for the MT8167 IOMMU in the Mediatek IOMMU driver.

- Device-tree updates for the Renesas driver to support r8a7742.

- Several smaller fixes and cleanups all over the place.

----------------------------------------------------------------
Alex Dewar (1):
iommu/pamu: Replace use of kzfree with kfree_sensitive

Andy Shevchenko (1):
iommu/vt-d: Move intel_iommu_gfx_mapped to Intel IOMMU header

Barry Song (3):
iommu/arm-smmu-v3: replace symbolic permissions by octal permissions for module parameter
iommu/arm-smmu-v3: replace module_param_named by module_param for disable_bypass
iommu/arm-smmu-v3: permit users to disable msi polling

David Woodhouse (1):
iommu/vt-d: Gracefully handle DMAR units with no supported address widths

Dmitry Osipenko (1):
iommu/tegra-smmu: Add locking around mapping operations

Fabien Parent (3):
dt-bindings: iommu: Add binding for MediaTek MT8167 IOMMU
iommu/mediatek: Add flag for legacy ivrp paddr
iommu/mediatek: Add support for MT8167

Jacob Pan (6):
docs: IOMMU user API
iommu/uapi: Add argsz for user filled data
iommu/uapi: Use named union for user data
iommu/uapi: Rename uapi functions
iommu/uapi: Handle data and argsz filled by users
iommu/vt-d: Check UAPI data processed by IOMMU core

Jean-Philippe Brucker (9):
iommu/arm-smmu-v3: Fix endianness annotations
arm64: mm: Pin down ASIDs for sharing mm with devices
arm64: cpufeature: Export symbol read_sanitised_ftr_reg()
iommu/io-pgtable-arm: Move some definitions to a header
iommu/arm-smmu-v3: Move definitions to a header
iommu/arm-smmu-v3: Share process page tables
iommu/arm-smmu-v3: Seize private ASID
iommu/arm-smmu-v3: Check for SVA features
iommu/arm-smmu-v3: Add SVA device feature

Joerg Roedel (3):
iommu/sun50i: Fix set-but-not-used variable warning
Merge tag 'arm-smmu-updates' of git://git.kernel.org/.../will/linux into arm/smmu
Merge branches 'arm/allwinner', 'arm/mediatek', 'arm/renesas', 'arm/tegra', 'arm/qcom', 'arm/smmu', 'ppc/pamu', 'x86/amd', 'x86/vt-d' and 'core' into next

Jordan Crouse (3):
iommu/arm-smmu: Pass io-pgtable config to implementation specific function
iommu/arm-smmu: Add support for split pagetables
iommu/arm-smmu: Prepare for the adreno-smmu implementation

Krzysztof Kozlowski (5):
iommu/mediatek: Drop of_match_ptr to fix -Wunused-const-variable
iommu/amd: Add missing function prototypes to fix -Wmissing-prototypes
iommu/amd: Fix kerneldoc comments
iommu/vt-d: Drop kerneldoc marker from regular comment
iommu/qcom: Drop of_match_ptr to fix -Wunused-const-variable

Lad Prabhakar (4):
dt-bindings: iommu: renesas,ipmmu-vmsa: Sort compatible string in increasing number of the SoC
dt-bindings: iommu: renesas,ipmmu-vmsa: Add r8a7742 support
ARM: dts: r8a7742: Add IPMMU DT nodes
iommu/renesas: Update help description for IPMMU_VMSA config

Lu Baolu (1):
iommu/vt-d: Use device numa domain if RHSA is missing

Miles Chen (1):
iommu/mediatek: Check 4GB mode by reading infracfg

Nicolin Chen (5):
iommu/tegra-smmu: Fix tlb_mask
memory: tegra: Correct num_tlb_lines for tegra210
iommu/tegra-smmu: Do not use PAGE_SHIFT and PAGE_MASK
iommu/tegra-smmu: Fix iova->phys translation
iommu/tegra-smmu: Allow to group clients in same swgroup

Rob Clark (1):
iommu/arm-smmu: Constify some helpers

Robin Murphy (1):
iommu/dma: Remove broken huge page handling

Suravee Suthikulpanit (3):
iommu/amd: Use 4K page for completion wait write-back semaphore
iommu/amd: Add support for RMP_PAGE_FAULT and RMP_HW_ERR
iommu/amd: Re-purpose Exclusion range registers to support SNP CWWB

Thierry Reding (3):
iommu/tegra-smmu: Set IOMMU group name
iommu/tegra-smmu: Balance IOMMU group reference count
iommu/tegra-smmu: Prune IOMMU group when it is released

Tom Murphy (2):
iommu: Rename iommu_tlb_* functions to iommu_iotlb_*
iommu/dma: Handle init_iova_flush_queue() failure in dma-iommu path

Will Deacon (1):
Merge branch 'for-next/svm' of git://git.kernel.org/.../arm64/linux into for-joerg/arm-smmu/updates

Yu Kuai (1):
iommu/qcom: add missing put_device() call in qcom_iommu_of_xlate()

Yuqi Jin (1):
iommu/iova: Replace cmpxchg with xchg in queue_iova

Zenghui Yu (1):
iommu/arm-smmu-v3: Fix l1 stream table size in the error message

Zhou Wang (1):
iommu/arm-smmu-v3: Ensure queue is read after updating prod pointer

.../devicetree/bindings/iommu/mediatek,iommu.txt | 2 +
.../bindings/iommu/renesas,ipmmu-vmsa.yaml | 3 +-
Documentation/userspace-api/iommu.rst | 209 +++++
MAINTAINERS | 4 +-
arch/arm/boot/dts/r8a7742.dtsi | 48 ++
arch/arm64/include/asm/barrier.h | 1 +
arch/arm64/include/asm/io.h | 1 +
arch/arm64/include/asm/mmu.h | 3 +
arch/arm64/include/asm/mmu_context.h | 11 +-
arch/arm64/kernel/cpufeature.c | 1 +
arch/arm64/mm/context.c | 105 ++-
drivers/iommu/Kconfig | 12 +-
drivers/iommu/amd/amd_iommu.h | 9 +
drivers/iommu/amd/amd_iommu_types.h | 6 +-
drivers/iommu/amd/init.c | 48 +-
drivers/iommu/amd/iommu.c | 90 ++-
drivers/iommu/arm/arm-smmu-v3/Makefile | 5 +-
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c | 248 ++++++
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 843 ++++-----------------
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 723 ++++++++++++++++++
drivers/iommu/arm/arm-smmu/arm-smmu-impl.c | 3 +-
drivers/iommu/arm/arm-smmu/arm-smmu.c | 102 +--
drivers/iommu/arm/arm-smmu/arm-smmu.h | 84 +-
drivers/iommu/arm/arm-smmu/qcom_iommu.c | 12 +-
drivers/iommu/dma-iommu.c | 22 +-
drivers/iommu/fsl_pamu.c | 2 +-
drivers/iommu/intel/dmar.c | 48 +-
drivers/iommu/intel/iommu.c | 62 +-
drivers/iommu/intel/svm.c | 13 +-
drivers/iommu/io-pgtable-arm.c | 27 +-
drivers/iommu/io-pgtable-arm.h | 30 +
drivers/iommu/iommu.c | 200 ++++-
drivers/iommu/iova.c | 2 +-
drivers/iommu/mtk_iommu.c | 49 +-
drivers/iommu/mtk_iommu.h | 1 +
drivers/iommu/sun50i-iommu.c | 15 +-
drivers/iommu/tegra-smmu.c | 138 +++-
drivers/memory/tegra/tegra210.c | 2 +-
drivers/vfio/vfio_iommu_type1.c | 2 +-
include/drm/intel-gtt.h | 5 +-
include/dt-bindings/memory/mt8167-larb-port.h | 51 ++
include/linux/intel-iommu.h | 1 +
include/linux/io-pgtable.h | 2 +-
include/linux/iommu.h | 45 +-
include/linux/soc/mediatek/infracfg.h | 3 +
include/uapi/linux/iommu.h | 18 +-
46 files changed, 2372 insertions(+), 939 deletions(-)
create mode 100644 Documentation/userspace-api/iommu.rst
create mode 100644 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c
create mode 100644 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h
create mode 100644 drivers/iommu/io-pgtable-arm.h
create mode 100644 include/dt-bindings/memory/mt8167-larb-port.h

Please pull.

Thanks,

Joerg

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