From: Tomasz Nowicki <tn@semihalf.com>
To: will@kernel.org, robin.murphy@arm.com, joro@8bytes.org,
gregory.clement@bootlin.com, robh+dt@kernel.org,
hannah@marvell.com
Cc: linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
devicetree@vger.kernel.org, catalin.marinas@arm.com,
nadavh@marvell.com, linux-arm-kernel@lists.infradead.org,
mw@semihalf.com, Tomasz Nowicki <tn@semihalf.com>
Subject: [PATCH v4 0/4] Add system mmu support for Armada-806
Date: Wed, 15 Jul 2020 09:06:45 +0200 [thread overview]
Message-ID: <20200715070649.18733-1-tn@semihalf.com> (raw)
The series is meant to support SMMU for AP806 and a workaround
for accessing ARM SMMU 64bit registers is the gist of it.
For the record, AP-806 can't access SMMU registers with 64bit width.
This patches split the readq/writeq into two 32bit accesses instead
and update DT bindings.
The series was successfully tested on a vanilla v5.8-rc3 kernel and
Intel e1000e PCIe NIC. The same for platform devices like SATA and USB.
For reference, previous versions are listed below:
V1: https://lkml.org/lkml/2018/10/15/373
V2: https://lkml.org/lkml/2019/7/11/426
V3: https://lkml.org/lkml/2020/7/2/1114
v3 -> v4
- call cfg_probe() impl hook a bit earlier which simplifies errata handling
- use hi_lo_readq_relaxed() and hi_lo_writeq_relaxed() for register accessors
- keep SMMU status disabled by default and enable where possible (DTS changes)
- commit logs improvements and other minor fixes
Hanna Hawa (1):
iommu/arm-smmu: Workaround for Marvell Armada-AP806 SoC erratum
#582743
Marcin Wojtas (1):
arm64: dts: marvell: add SMMU support
Tomasz Nowicki (2):
iommu/arm-smmu: Call configuration impl hook before consuming features
dt-bindings: arm-smmu: add compatible string for Marvell Armada-AP806
SMMU-500
Documentation/arm64/silicon-errata.rst | 3 ++
.../devicetree/bindings/iommu/arm,smmu.yaml | 4 ++
arch/arm64/boot/dts/marvell/armada-7040.dtsi | 28 ++++++++++++
arch/arm64/boot/dts/marvell/armada-8040.dtsi | 40 +++++++++++++++++
arch/arm64/boot/dts/marvell/armada-ap80x.dtsi | 18 ++++++++
drivers/iommu/arm-smmu-impl.c | 45 +++++++++++++++++++
drivers/iommu/arm-smmu.c | 11 +++--
7 files changed, 145 insertions(+), 4 deletions(-)
--
2.17.1
next reply other threads:[~2020-07-15 7:07 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-15 7:06 Tomasz Nowicki [this message]
2020-07-15 7:06 ` [PATCH v4 1/4] iommu/arm-smmu: Call configuration impl hook before consuming features Tomasz Nowicki
2020-07-15 10:20 ` Robin Murphy
2020-07-15 7:06 ` [PATCH v4 2/4] iommu/arm-smmu: Workaround for Marvell Armada-AP806 SoC erratum #582743 Tomasz Nowicki
2020-07-15 10:32 ` Robin Murphy
2020-07-16 7:24 ` Tomasz Nowicki
2020-07-15 7:06 ` [PATCH v4 3/4] dt-bindings: arm-smmu: add compatible string for Marvell Armada-AP806 SMMU-500 Tomasz Nowicki
2020-07-15 10:36 ` Robin Murphy
2020-07-16 7:27 ` Tomasz Nowicki
2020-07-15 7:06 ` [PATCH v4 4/4] arm64: dts: marvell: add SMMU support Tomasz Nowicki
2020-07-18 21:08 ` Gregory CLEMENT
2020-07-16 12:00 ` [PATCH v4 0/4] Add system mmu support for Armada-806 Will Deacon
2020-07-16 12:02 ` Will Deacon
2020-07-16 12:49 ` Marcin Wojtas
2020-07-18 21:07 ` Gregory CLEMENT
2020-10-06 15:16 ` Denis Odintsov
2020-10-07 13:55 ` Marcin Wojtas
2020-10-13 13:08 ` Robin Murphy
2020-10-19 11:49 ` Denis Odintsov
2020-10-23 12:19 ` Tomasz Nowicki
2020-10-23 12:33 ` Robin Murphy
2020-10-23 13:05 ` Tomasz Nowicki
2020-10-23 13:26 ` Denis Odintsov
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