From: Jean-Philippe Brucker <jean-philippe@linaro.org>
To: joro@8bytes.org, will@kernel.org
Cc: devicetree@vger.kernel.org, lorenzo.pieralisi@arm.com,
linux-acpi@vger.kernel.org,
Jean-Philippe Brucker <jean-philippe@linaro.org>,
guohanjun@huawei.com, rjw@rjwysocki.net,
shameerali.kolothum.thodi@huawei.com, eric.auger@redhat.com,
iommu@lists.linux-foundation.org, robh+dt@kernel.org,
linux-accelerators@lists.ozlabs.org, Jonathan.Cameron@huawei.com,
sudeep.holla@arm.com, vivek.gautam@arm.com,
zhangfei.gao@linaro.org, baolu.lu@linux.intel.com,
robin.murphy@arm.com, linux-arm-kernel@lists.infradead.org,
lenb@kernel.org
Subject: [PATCH v9 00/10] iommu: I/O page faults for SMMUv3
Date: Fri, 8 Jan 2021 15:52:08 +0100 [thread overview]
Message-ID: <20210108145217.2254447-1-jean-philippe@linaro.org> (raw)
Add stall support to the SMMUv3, along with a common I/O Page Fault
handler.
Changes since v8 [1]:
* Added patches 1 and 2 which aren't strictly related to IOPF but need to
be applied in order - 8 depends on 2 which depends on 1. Patch 2 moves
pasid-num-bits to a device property, following Robin's comment on v8.
* Patches 3-5 extract the IOPF feature from the SVA one, to support SVA
implementations that handle I/O page faults through the device driver
rather than the IOMMU driver [2]
* Use device properties for dma-can-stall, instead of a special fwspec
member.
* Dropped PRI support for now, since it doesn't seem to be available in
hardware and adds some complexity.
* Had to drop some Acks and Tested tags unfortunately, due to code
changes.
As usual, you can get the latest SVA patches from
http://jpbrucker.net/git/linux sva/current
[1] https://lore.kernel.org/linux-iommu/20201112125519.3987595-1-jean-philippe@linaro.org/
[2] https://lore.kernel.org/linux-iommu/BY5PR12MB3764F5D07E8EC48327E39C86B3C60@BY5PR12MB3764.namprd12.prod.outlook.com/
Jean-Philippe Brucker (10):
iommu: Remove obsolete comment
iommu/arm-smmu-v3: Use device properties for pasid-num-bits
iommu: Separate IOMMU_DEV_FEAT_IOPF from IOMMU_DEV_FEAT_SVA
iommu/vt-d: Support IOMMU_DEV_FEAT_IOPF
uacce: Enable IOMMU_DEV_FEAT_IOPF
iommu: Add a page fault handler
iommu/arm-smmu-v3: Maintain a SID->device structure
dt-bindings: document stall property for IOMMU masters
ACPI/IORT: Enable stall support for platform devices
iommu/arm-smmu-v3: Add stall support for platform devices
drivers/iommu/Makefile | 1 +
.../devicetree/bindings/iommu/iommu.txt | 18 +
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 74 ++-
drivers/iommu/iommu-sva-lib.h | 53 ++
include/linux/iommu.h | 25 +-
drivers/acpi/arm64/iort.c | 15 +-
.../iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c | 70 ++-
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 354 ++++++++++++--
drivers/iommu/intel/iommu.c | 11 +-
drivers/iommu/io-pgfault.c | 462 ++++++++++++++++++
drivers/iommu/of_iommu.c | 5 -
drivers/misc/uacce/uacce.c | 32 +-
12 files changed, 1046 insertions(+), 74 deletions(-)
create mode 100644 drivers/iommu/io-pgfault.c
--
2.29.2
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next reply other threads:[~2021-01-08 15:06 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-08 14:52 Jean-Philippe Brucker [this message]
2021-01-08 14:52 ` [PATCH v9 01/10] iommu: Remove obsolete comment Jean-Philippe Brucker
2021-01-19 11:11 ` Jonathan Cameron
2021-01-20 17:41 ` Jean-Philippe Brucker
2021-01-08 14:52 ` [PATCH v9 02/10] iommu/arm-smmu-v3: Use device properties for pasid-num-bits Jean-Philippe Brucker
2021-01-19 11:22 ` Jonathan Cameron
2021-01-08 14:52 ` [PATCH v9 03/10] iommu: Separate IOMMU_DEV_FEAT_IOPF from IOMMU_DEV_FEAT_SVA Jean-Philippe Brucker
2021-01-12 4:31 ` Lu Baolu
2021-01-12 9:16 ` Jean-Philippe Brucker
2021-01-13 2:49 ` Lu Baolu
2021-01-13 8:10 ` Tian, Kevin
2021-01-14 16:41 ` Jean-Philippe Brucker
2021-01-16 3:54 ` Lu Baolu
2021-01-18 6:54 ` Tian, Kevin
2021-01-19 10:16 ` Jean-Philippe Brucker
2021-01-20 1:57 ` Lu Baolu
2021-01-08 14:52 ` [PATCH v9 04/10] iommu/vt-d: Support IOMMU_DEV_FEAT_IOPF Jean-Philippe Brucker
2021-01-08 14:52 ` [PATCH v9 05/10] uacce: Enable IOMMU_DEV_FEAT_IOPF Jean-Philippe Brucker
2021-01-11 3:29 ` Zhangfei Gao
2021-01-19 12:27 ` Jonathan Cameron
2021-01-20 17:42 ` Jean-Philippe Brucker
2021-01-20 20:47 ` Dave Jiang
2021-01-22 11:53 ` Zhou Wang
2021-01-22 15:43 ` Dave Jiang
2021-01-08 14:52 ` [PATCH v9 06/10] iommu: Add a page fault handler Jean-Philippe Brucker
2021-01-19 13:38 ` Jonathan Cameron
2021-01-20 17:43 ` Jean-Philippe Brucker
2021-01-08 14:52 ` [PATCH v9 07/10] iommu/arm-smmu-v3: Maintain a SID->device structure Jean-Philippe Brucker
2021-01-19 13:51 ` Jonathan Cameron
2021-01-08 14:52 ` [PATCH v9 08/10] dt-bindings: document stall property for IOMMU masters Jean-Philippe Brucker
2021-01-08 14:52 ` [PATCH v9 09/10] ACPI/IORT: Enable stall support for platform devices Jean-Philippe Brucker
2021-01-08 14:52 ` [PATCH v9 10/10] iommu/arm-smmu-v3: Add " Jean-Philippe Brucker
2021-01-19 17:28 ` Robin Murphy
2021-01-20 17:55 ` Jean-Philippe Brucker
2021-01-11 3:26 ` [PATCH v9 00/10] iommu: I/O page faults for SMMUv3 Zhangfei Gao
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