[git pull] IOMMU Updates for Linux v5.15

From: Joerg Roedel
Date: Fri Sep 03 2021 - 10:03:27 EST

Hi Linus,

The tree is a bit more messy this time, mostly because there are many
IOMMU core changes included and driver patches which depend on them
living in different branches. So some cross-merging between branches was
necessary. With that said:

The following changes since commit 7c60610d476766e128cc4284bb6349732cbd6606:

Linux 5.14-rc6 (2021-08-15 13:40:53 -1000)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git tags/iommu-updates-v5.15

for you to fetch changes up to d8768d7eb9c21ef928adb93402d9348bcc4a6915:

Merge branches 'apple/dart', 'arm/smmu', 'iommu/fixes', 'x86/amd', 'x86/vt-d' and 'core' into next (2021-08-20 17:14:35 +0200)

IOMMU Updates for Linux v5.15


- New DART IOMMU driver for Apple Silicon M1 chips.

- Optimizations for iommu_[map/unmap] performance

- Selective TLB flush support for the AMD IOMMU driver to make
it more efficient on emulated IOMMUs.

- Rework IOVA setup and default domain type setting to move more
code out of IOMMU drivers and to support runtime switching
between certain types of default domains.

- VT-d Updates from Lu Baolu:
- Update the virtual command related registers
- Enable Intel IOMMU scalable mode by default
- Preset A/D bits for user space DMA usage
- Allow devices to have more than 32 outstanding PRs
- Various cleanups

- ARM SMMU Updates from Will Deacon:
- SMMUv3: Minor optimisation to avoid zeroing struct members on CMD submission
- SMMUv3: Increased use of batched commands to reduce submission latency
- SMMUv3: Refactoring in preparation for ECMDQ support
- SMMUv2: Fix races when probing devices with identical StreamIDs
- SMMUv2: Optimise walk cache flushing for Qualcomm implementations
- SMMUv2: Allow deep sleep states for some Qualcomm SoCs with shared clocks

- Various smaller optimizations, cleanups, and fixes

Andy Shevchenko (1):
iommu/vt-d: Drop the kernel doc annotation

Ashish Mhetre (1):
iommu: Fix race condition during default domain allocation

Ezequiel Garcia (1):
iommu/dma: Fix leak in non-contiguous API

Fenghua Yu (1):
iommu/vt-d: Fix PASID reference leak

Frank Wunderlich (1):
iommu: Check if group is NULL before remove device

Geert Uytterhoeven (1):
iommu/dart: APPLE_DART should depend on ARCH_APPLE

Isaac J. Manjarres (12):
iommu/io-pgtable: Introduce unmap_pages() as a page table op
iommu: Add an unmap_pages() op for IOMMU drivers
iommu/io-pgtable: Introduce map_pages() as a page table op
iommu: Add a map_pages() op for IOMMU drivers
iommu: Add support for the map_pages() callback
iommu/io-pgtable-arm: Prepare PTE methods for handling multiple entries
iommu/io-pgtable-arm: Implement arm_lpae_unmap_pages()
iommu/io-pgtable-arm: Implement arm_lpae_map_pages()
iommu/io-pgtable-arm-v7s: Implement arm_v7s_unmap_pages()
iommu/io-pgtable-arm-v7s: Implement arm_v7s_map_pages()
iommu/arm-smmu: Implement the unmap_pages() IOMMU driver callback
iommu/arm-smmu: Implement the map_pages() IOMMU driver callback

Joerg Roedel (4):
Merge remote-tracking branch 'korg/core' into x86/amd
iommu/amd: Remove stale amd_iommu_unmap_flush usage
Merge tag 'arm-smmu-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into arm/smmu
Merge branches 'apple/dart', 'arm/smmu', 'iommu/fixes', 'x86/amd', 'x86/vt-d' and 'core' into next

John Garry (5):
iommu: Deprecate Intel and AMD cmdline methods to enable strict mode
iommu: Print strict or lazy mode at init time
iommu: Remove mode argument from iommu_set_dma_strict()
iommu/arm-smmu-v3: Remove some unneeded init in arm_smmu_cmdq_issue_cmdlist()
iommu/arm-smmu-v3: Stop pre-zeroing batch commands

Krishna Reddy (1):
iommu/arm-smmu: Fix race condition during iommu_group creation

Lennert Buytenhek (1):
iommu/amd: Fix printing of IOMMU events when rate limiting kicks in

Liu Yi L (3):
iommu/vt-d: Fix incomplete cache flush in intel_pasid_tear_down_entry()
iommu/vt-d: Use pasid_pte_is_present() helper function
iommu/vt-d: Add present bit check in pasid entry setup helpers

Lu Baolu (8):
iommu/vt-d: Report real pgsize bitmap to iommu core
iommu/vt-d: Implement map/unmap_pages() iommu_ops callback
iommu/vt-d: Move clflush'es from iotlb_sync_map() to map_pages()
iommu/vt-d: Update the virtual command related registers
iommu/vt-d: Refactor Kconfig a bit
iommu/vt-d: Enable Intel IOMMU scalable mode by default
iommu/vt-d: Preset A/D bits for user space DMA usage
iommu/vt-d: Allow devices to have more than 32 outstanding PRs

Nadav Amit (6):
iommu/amd: Selective flush on unmap
iommu/amd: Do not use flush-queue when NpCache is on
iommu: Factor iommu_iotlb_gather_is_disjoint() out
iommu/amd: Tailored gather logic for AMD
iommu/amd: Sync once for scatter-gather operations
iommu/amd: Use only natural aligned flushes in a VM

Robin Murphy (26):
iommu: Streamline iommu_iova_to_phys()
iommu: Improve iommu_iotlb_gather helpers
iommu: Pull IOVA cookie management into the core
iommu/amd: Drop IOVA cookie management
iommu/arm-smmu: Drop IOVA cookie management
iommu/vt-d: Drop IOVA cookie management
iommu/exynos: Drop IOVA cookie management
iommu/ipmmu-vmsa: Drop IOVA cookie management
iommu/mtk: Drop IOVA cookie management
iommu/rockchip: Drop IOVA cookie management
iommu/sprd: Drop IOVA cookie management
iommu/sun50i: Drop IOVA cookie management
iommu/virtio: Drop IOVA cookie management
iommu/dma: Remove redundant "!dev" checks
iommu: Indicate queued flushes via gather data
iommu/io-pgtable: Remove non-strict quirk
iommu: Introduce explicit type for non-strict DMA domains
iommu/amd: Prepare for multiple DMA domain types
iommu/arm-smmu: Prepare for multiple DMA domain types
iommu/vt-d: Prepare for multiple DMA domain types
iommu: Express DMA strictness via the domain type
iommu: Expose DMA domain strictness via sysfs
iommu: Only log strictness for DMA domains
iommu: Merge strictness and domain type configs
iommu: Allow enabling non-strict mode dynamically
iommu/io-pgtable: Abstract iommu_iotlb_gather access

Sai Prakash Ranjan (2):
iommu/arm-smmu: Add clk_bulk_{prepare/unprepare} to system pm callbacks
iommu/arm-smmu: Optimize ->tlb_flush_walk() for qcom implementation

Sven Peter (3):
iommu/io-pgtable: Add DART pagetable format
dt-bindings: iommu: add DART iommu bindings
iommu/dart: Add DART iommu driver

Will Deacon (3):
iommu: Use bitmap to calculate page size in iommu_pgsize()
iommu: Split 'addr_merge' argument to iommu_pgsize() into separate parts
iommu: Hook up '->unmap_pages' driver callback

Xiang Chen (2):
iommu/arm-smmu-v3: Implement the unmap_pages() IOMMU driver callback
iommu/arm-smmu-v3: Implement the map_pages() IOMMU driver callback

Xiyu Yang via iommu (1):
iommu/amd: Convert from atomic_t to refcount_t on pasid_state->count

Yang Yingliang (1):
iommu/arm-smmu: Fix missing unlock on error in arm_smmu_device_group()

Zhen Lei (8):
iommu: Enhance IOMMU default DMA mode build options
iommu/vt-d: Add support for IOMMU default DMA mode build options
iommu/amd: Add support for IOMMU default DMA mode build options
iommu/arm-smmu-v3: Use command queue batching helpers to improve performance
iommu/arm-smmu-v3: Add and use static helper function arm_smmu_cmdq_issue_cmd_with_sync()
iommu/arm-smmu-v3: Add and use static helper function arm_smmu_get_cmdq()
iommu/arm-smmu-v3: Extract reusable function __arm_smmu_cmdq_skip_err()
iommu/vt-d: Remove unnecessary oom message

.../ABI/testing/sysfs-kernel-iommu_groups | 6 +-
Documentation/admin-guide/kernel-parameters.txt | 29 +-
.../devicetree/bindings/iommu/apple,dart.yaml | 81 ++
drivers/iommu/Kconfig | 69 +-
drivers/iommu/Makefile | 1 +
drivers/iommu/amd/amd_iommu_types.h | 6 -
drivers/iommu/amd/init.c | 12 +-
drivers/iommu/amd/io_pgtable.c | 3 -
drivers/iommu/amd/iommu.c | 151 +++-
drivers/iommu/amd/iommu_v2.c | 13 +-
drivers/iommu/apple-dart.c | 923 +++++++++++++++++++++
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 121 +--
drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 11 +
drivers/iommu/arm/arm-smmu/arm-smmu.c | 89 +-
drivers/iommu/arm/arm-smmu/arm-smmu.h | 1 +
drivers/iommu/arm/arm-smmu/qcom_iommu.c | 9 -
drivers/iommu/dma-iommu.c | 52 +-
drivers/iommu/exynos-iommu.c | 19 +-
drivers/iommu/intel/Kconfig | 19 +-
drivers/iommu/intel/dmar.c | 2 -
drivers/iommu/intel/iommu.c | 197 ++---
drivers/iommu/intel/pasid.c | 28 +-
drivers/iommu/intel/pasid.h | 16 +-
drivers/iommu/intel/perf.c | 2 +-
drivers/iommu/intel/svm.c | 7 +-
drivers/iommu/io-pgtable-arm-v7s.c | 62 +-
drivers/iommu/io-pgtable-arm.c | 282 +++++--
drivers/iommu/io-pgtable.c | 1 +
drivers/iommu/iommu.c | 198 +++--
drivers/iommu/iova.c | 14 +-
drivers/iommu/ipmmu-vmsa.c | 28 +-
drivers/iommu/mtk_iommu.c | 13 +-
drivers/iommu/mtk_iommu_v1.c | 1 -
drivers/iommu/rockchip-iommu.c | 12 +-
drivers/iommu/sprd-iommu.c | 7 -
drivers/iommu/sun50i-iommu.c | 13 +-
drivers/iommu/virtio-iommu.c | 8 -
include/linux/dma-iommu.h | 6 +
include/linux/intel-iommu.h | 6 +-
include/linux/intel-svm.h | 5 +
include/linux/io-pgtable.h | 20 +-
include/linux/iommu.h | 114 ++-
43 files changed, 2054 insertions(+), 610 deletions(-)
create mode 100644 Documentation/devicetree/bindings/iommu/apple,dart.yaml
create mode 100644 drivers/iommu/apple-dart.c

Please pull.



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