linux-kernel - Re: [PATCH v5 00/14] ACPI platform MSI support and its example mbigen

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Date:   Mon, 26 Dec 2016 16:57:01 +0800
From:   "majun (Euler7)" <majun258@...wei.com>
To:     Hanjun Guo <guohanjun@...wei.com>,
        Marc Zyngier <marc.zyngier@....com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>
CC:     <majun258@...wei.com>, <linux-acpi@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg KH <gregkh@...uxfoundation.org>,
        Tomasz Nowicki <tn@...ihalf.com>,
        Kefeng Wang <wangkefeng.wang@...wei.com>,
        Agustin Vega-Frias <agustinv@...eaurora.org>,
        Sinan Kaya <okaya@...eaurora.org>,
        Charles Garcia-Tobin <charles.garcia-tobin@....com>,
        <huxinwei@...wei.com>, <yimin@...wei.com>, <linuxarm@...wei.com>,
        <jcm@...hat.com>, Hanjun Guo <hanjun.guo@...aro.org>
Subject: Re: [PATCH v5 00/14] ACPI platform MSI support and its example mbigen

Hi Hanjun:
	This patch set works fine on my Hisilicon D05 board.
Feel free to add
	Tested-by: Majun <majun258@...wei.com>

在 2016/12/22 13:35, Hanjun Guo 写道:
> From: Hanjun Guo <hanjun.guo@...aro.org>
> 
> v4 -> v5:
> 	- Add mbigen support back with tested on with Agustin's patchset,
> 	  and it's a good example of how ACPI platform MSI works
> 	- rebased on top of lastest Linus tree (commit 52bce91 splice: reinstate SIGPIPE/EPIPE handling)
> 
> v3 -> v4:
>         - Drop mbi-gen patches to just submit platform msi support because
>           will rebase mbi-gen patches on top of Agustin's patchset, and discusion
>           is going there.
>         - Add a patch to support device topology such as NC(named componant, paltform device)
>           ->SMMU->ITS which suggested by Lorenzo;
>         - rebased on top of Lorenzo's v9 of ACPI IORT ARM SMMU support;
>         - rebased on top of 4.9-rc7
> 
> v2 -> v3:
>         - Drop RFC tag
>         - Rebase against v4.9-rc2 and Lorenzo's v6 of ACPI IORT ARM SMMU support [1]
>         - Add 3 cleanup patches (patch 1, 2, 3)
>         - Drop arch_init call patch from last version
>         - Introduce a callback for platform device to set msi domain
>         - Introduce a new API to get paltform device's domain instead of
>           reusing the PCI one in previous version
>         - Add a patch to rework iort_node_get_id()
> 
> [1]: http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1251993.html
> 
> v1 -> v2:
>         - Fix the bug of if multi Interrupt() resoures in single _PRS,
>           we need to calculate all the irq numbers (I missed it in previous
>           version);
>         - Rebased on Marc's irq/irqchip-4.9 branch and Lorenzo's v5
>           SMMU patches (also Robin's SMMu patches)
>         - Add patch irqchip: mbigen: promote mbigen init.
> 
> With platform msi support landed in the kernel, and the introduction
> of IORT for GICv3 ITS (PCI MSI) and SMMU, the framework for platform msi
> is ready, this patch set add few patches to enable the ACPI platform
> msi support.
> 
> For platform device connecting to ITS on arm platform, we have IORT
> table with the named componant node to describe the mappings of paltform
> device and ITS, so we can retrieve the dev id and find its parent
> irqdomain (ITS) from IORT table (simlar with the ACPI ITS support).
> 
> The fisrt 3 patches are cleanups;
> 
> Patch 4,5 are refactoring its_pmsi_prepare() for both DT and ACPI
> then retrieve the dev id from iort;
> 
> Patch 6,7 to create platform msi domain to ACPI case which scanned
> the MADT table;
> 
> Patch 8,9,10,11 to setup the msi domain for platform device based
> on IORT table.
> 
> Patch 12,13,14 convert dt based mbigen driver to support ACPI.
> 
> Teasted on Hisilicon D03/D05.
> 
> Happy holidays!
> 
> Thanks
> Hanjun
> 
> Hanjun Guo (12):
>   ACPI: ARM64: IORT: minor cleanup for iort_match_node_callback()
>   irqchip: gic-v3-its: keep the head file include in alphabetic order
>   ACPI: ARM64: IORT: add missing comment for iort_dev_find_its_id()
>   irqchip: gicv3-its: platform-msi: refactor its_pmsi_prepare()
>   ACPI: platform-msi: retrieve dev id from IORT
>   irqchip: gicv3-its: platform-msi: refactor its_pmsi_init() to prepare
>     for ACPI
>   irqchip: gicv3-its: platform-msi: scan MADT to create platform msi
>     domain
>   ACPI: ARM64: IORT: rework iort_node_get_id()
>   ACPI: platform: setup MSI domain for ACPI based platform device
>   ACPI: ARM64: IORT: rework iort_node_get_id() for NC->SMMU->ITS case
>   msi: platform: make platform_msi_create_device_domain() ACPI aware
>   irqchip: mbigen: Add ACPI support
> 
> Kefeng Wang (2):
>   irqchip: mbigen: drop module owner
>   irqchip: mbigen: introduce mbigen_of_create_domain()
> 
>  drivers/acpi/acpi_platform.c                  |  11 ++
>  drivers/acpi/arm64/iort.c                     | 138 ++++++++++++++++++++------
>  drivers/base/platform-msi.c                   |   3 +-
>  drivers/base/platform.c                       |   3 +
>  drivers/irqchip/irq-gic-v3-its-platform-msi.c | 106 +++++++++++++++-----
>  drivers/irqchip/irq-gic-v3-its.c              |   3 +-
>  drivers/irqchip/irq-mbigen.c                  | 109 ++++++++++++++++----
>  include/linux/acpi_iort.h                     |  11 ++
>  include/linux/platform_device.h               |   3 +
>  9 files changed, 309 insertions(+), 78 deletions(-)
>