From: Jean-Philippe Brucker <jean-philippe@linaro.org>
To: bhelgaas@google.com, will@kernel.org, robh+dt@kernel.org,
lorenzo.pieralisi@arm.com, joro@8bytes.org,
baolu.lu@linux.intel.com, linux-doc@vger.kernel.org,
linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
devicetree@vger.kernel.org, linux-acpi@vger.kernel.org,
iommu@lists.linux-foundation.org
Cc: corbet@lwn.net, mark.rutland@arm.com, liviu.dudau@arm.com,
sudeep.holla@arm.com, guohanjun@huawei.com, rjw@rjwysocki.net,
lenb@kernel.org, robin.murphy@arm.com, dwmw2@infradead.org,
amurray@thegoodpenguin.co.uk, frowand.list@gmail.com
Subject: [PATCH 11/11] Documentation: Generalize the "pci=noats" boot parameter
Date: Thu, 13 Feb 2020 17:50:49 +0100 [thread overview]
Message-ID: <20200213165049.508908-12-jean-philippe@linaro.org> (raw)
In-Reply-To: <20200213165049.508908-1-jean-philippe@linaro.org>
The "pci=noats" kernel parameter disables PCIe ATS globally, and affects
any ATS-capable IOMMU driver. So rather than adding Arm SMMUv3, which
recently gained ATS support, to the list of relevant build options,
simplify the noats description.
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
---
Documentation/admin-guide/kernel-parameters.txt | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index dbc22d684627..e5fa8d057a3c 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3606,8 +3606,8 @@
on: Turn realloc on
realloc same as realloc=on
noari do not use PCIe ARI.
- noats [PCIE, Intel-IOMMU, AMD-IOMMU]
- do not use PCIe ATS (and IOMMU device IOTLB).
+ noats [PCIE] Do not use PCIe ATS (and IOMMU device
+ IOTLB).
pcie_scan_all Scan all possible PCIe devices. Otherwise we
only look for one device below a PCIe downstream
port.
--
2.25.0
next prev parent reply other threads:[~2020-02-13 16:52 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-13 16:50 [PATCH 00/10] PCI/ATS: Device-tree support and other improvements Jean-Philippe Brucker
2020-02-13 16:50 ` [PATCH 01/11] dt-bindings: PCI: generic: Add ats-supported property Jean-Philippe Brucker
2020-02-19 22:24 ` Rob Herring
2020-02-13 16:50 ` [PATCH 02/11] PCI: Add ats_supported host bridge flag Jean-Philippe Brucker
2020-02-15 21:10 ` Bjorn Helgaas
2020-02-17 15:40 ` Jean-Philippe Brucker
2020-02-13 16:50 ` [PATCH 03/11] PCI: OF: Check whether the host bridge supports ATS Jean-Philippe Brucker
2020-02-13 18:26 ` Rob Herring
2020-02-17 12:40 ` Jean-Philippe Brucker
2020-02-13 16:50 ` [PATCH 04/11] ACPI/IORT: Check ATS capability in root complex node Jean-Philippe Brucker
2020-03-06 9:37 ` Hanjun Guo
2020-02-13 16:50 ` [PATCH 05/11] PCI/ATS: Gather checks into pci_ats_supported() Jean-Philippe Brucker
2020-02-13 16:50 ` [PATCH 06/11] iommu/amd: Use pci_ats_supported() Jean-Philippe Brucker
2020-02-13 16:50 ` [PATCH 07/11] iommu/arm-smmu-v3: " Jean-Philippe Brucker
2020-02-13 16:50 ` [PATCH 08/11] iommu/vt-d: " Jean-Philippe Brucker
2020-02-13 16:50 ` [PATCH 09/11] ACPI/IORT: Drop ATS fwspec flag Jean-Philippe Brucker
2020-03-06 9:42 ` Hanjun Guo
2020-02-13 16:50 ` [PATCH 10/11] arm64: dts: fast models: Enable PCIe ATS for Base RevC FVP Jean-Philippe Brucker
2020-02-13 16:50 ` Jean-Philippe Brucker [this message]
2020-02-19 10:42 ` [PATCH 00/10] PCI/ATS: Device-tree support and other improvements Joerg Roedel
2020-03-06 9:32 ` Hanjun Guo
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