| From: |
| Lu Baolu <baolu.lu-AT-linux.intel.com> |
| To: |
| Joerg Roedel <joro-AT-8bytes.org>, Will Deacon <will-AT-kernel.org>, Robin Murphy <robin.murphy-AT-arm.com>, Jason Gunthorpe <jgg-AT-ziepe.ca>, Kevin Tian <kevin.tian-AT-intel.com> |
| Subject: |
| [PATCH v4 0/8] iommu: Remove IOMMU_DEV_FEAT_SVA/_IOPF |
| Date: |
| Thu, 13 Mar 2025 13:19:45 +0800 |
| Message-ID: |
| <20250313051953.4064532-1-baolu.lu@linux.intel.com> |
| Cc: |
| Dave Jiang <dave.jiang-AT-intel.com>, Vinod Koul <vkoul-AT-kernel.org>, Fenghua Yu <fenghuay-AT-nvidia.com>, Zhangfei Gao <zhangfei.gao-AT-linaro.org>, Zhou Wang <wangzhou1-AT-hisilicon.com>, iommu-AT-lists.linux.dev, linux-kernel-AT-vger.kernel.org, Lu Baolu <baolu.lu-AT-linux.intel.com>, Jason Gunthorpe <jgg-AT-nvidia.com> |
| Archive-link: |
| Article |
The new method for driver fault reporting support relies on the domain
to specify a iopf_handler. The driver should detect this and setup the
HW when fault capable domains are attached.
Move SMMUv3 to use this method and have VT-D validate support during
attach so that all three fault capable drivers have a no-op FEAT_SVA and
_IOPF. Then remove them.
This was initiated by Jason. I'm following up to remove FEAT_IOPF and
further clean up.
The whole series is also available at github:
https://github.com/LuBaolu/intel-iommu/commits/iommu_no_f...
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Change log:
v4:
- Refined arm_smmu_disable_iopf() to improve code clarity.
- Separate patches for vt-d refactoring have been merged.
- All patches are based on the latest iommu/next branch to prevent
potential merge conflicts.
v3: https://lore.kernel.org/linux-iommu/20250228092631.342546...
- Series has been tested by Zhangfei Gao with arm-smmu-v3 driver.
- Refined some code according to Kevin's suggestions.
- No functional change.
v2: https://lore.kernel.org/linux-iommu/20250224051627.295630...
- Fix removing wrong nesting master_domain in
arm_smmu_remove_master_domain().
- Fix iopf enable/disable in iommufd mock driver for domain
replacement.
v1: https://lore.kernel.org/linux-iommu/20250214061104.195952...
Jason Gunthorpe (2):
iommu/arm-smmu-v3: Put iopf enablement in the domain attach path
iommu: Remove IOMMU_DEV_FEAT_SVA
Lu Baolu (6):
iommu/vt-d: Put iopf enablement in domain attach path
iommufd/selftest: Put iopf enablement in domain attach path
dmaengine: idxd: Remove unnecessary IOMMU_DEV_FEAT_IOPF
uacce: Remove unnecessary IOMMU_DEV_FEAT_IOPF
iommufd: Remove unnecessary IOMMU_DEV_FEAT_IOPF
iommu: Remove iommu_dev_enable/disable_feature()
drivers/accel/amdxdna/aie2_pci.c | 13 +-
drivers/dma/idxd/init.c | 43 +-----
drivers/iommu/amd/iommu.c | 34 -----
.../iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c | 86 +----------
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 137 ++++++++++--------
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 39 +----
drivers/iommu/intel/iommu.c | 71 +++++----
drivers/iommu/intel/iommu.h | 33 +++++
drivers/iommu/intel/nested.c | 16 +-
drivers/iommu/intel/svm.c | 9 +-
drivers/iommu/iommu-sva.c | 3 -
drivers/iommu/iommu.c | 32 ----
drivers/iommu/iommufd/device.c | 64 ++++----
drivers/iommu/iommufd/fault.c | 45 ------
drivers/iommu/iommufd/iommufd_private.h | 5 -
drivers/iommu/iommufd/selftest.c | 64 ++++++--
drivers/misc/uacce/uacce.c | 40 -----
include/linux/iommu.h | 35 -----
18 files changed, 272 insertions(+), 497 deletions(-)
--
2.43.0
