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From: Hanjun Guo <guohanjun@huawei.com>
To: Jean-Philippe Brucker <jean-philippe@linaro.org>,
	<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>, <rjw@rjwysocki.net>, <lenb@kernel.org>,
	<robin.murphy@arm.com>, <dwmw2@infradead.org>,
	<amurray@thegoodpenguin.co.uk>, <frowand.list@gmail.com>,
	Linuxarm <linuxarm@huawei.com>
Subject: Re: [PATCH 00/10] PCI/ATS: Device-tree support and other improvements
Date: Fri, 6 Mar 2020 17:32:57 +0800	[thread overview]
Message-ID: <b898317c-c534-aad8-5b0d-45723e0b8e89@huawei.com> (raw)
In-Reply-To: <20200213165049.508908-1-jean-philippe@linaro.org>

On 2020/2/14 0:50, Jean-Philippe Brucker wrote:
> Enable ATS on device-tree based systems, and factor the common ATS
> enablement checks into pci_enable_ats().
> 
> ATS support in PCIe endpoints is discovered through the ATS capability,
> but there is no common method for discovering whether the host bridge
> supports ATS. Each vendor provides their own ACPI method:
> * DMAR (Intel) reports ATS support per domain or per root port.
> * IVRS (AMD) reports negative ATS support for a range of devices.
> * IORT (ARM) reports ATS support for a root complex.

Tested this patch set against 5.6-rc2 on a Kunpeng920 ARM server,
I just confirmed that this patch set didn't break anything in
my box with ACPI booting, PCI devices work as expected, FWIW,

Tested-by: Hanjun Guo <guohanjun@huawei.com>

Thanks
Hanjun


      parent reply	other threads:[~2020-03-06  9:33 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 ` [PATCH 11/11] Documentation: Generalize the "pci=noats" boot parameter Jean-Philippe Brucker
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 [this message]

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