linux-kernel - Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X in all platforms

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Message-ID: <5427A6A0.5040703@huawei.com>
Date:	Sun, 28 Sep 2014 14:11:44 +0800
From:	Yijing Wang <wangyijing@...wei.com>
To:	Thierry Reding <thierry.reding@...il.com>
CC:	Liviu Dudau <liviu@...au.co.uk>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	<linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Xinwei Hu <huxinwei@...wei.com>, Wuyun <wuyun.wu@...wei.com>,
	<linux-arm-kernel@...ts.infradead.org>,
	Russell King <linux@....linux.org.uk>,
	<linux-arch@...r.kernel.org>, <arnab.basu@...escale.com>,
	<Bharat.Bhushan@...escale.com>, <x86@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Konrad Rzeszutek Wilk" <konrad.wilk@...cle.com>,
	<xen-devel@...ts.xenproject.org>, Joerg Roedel <joro@...tes.org>,
	<iommu@...ts.linux-foundation.org>, <linux-mips@...ux-mips.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	<linuxppc-dev@...ts.ozlabs.org>, <linux-s390@...r.kernel.org>,
	Sebastian Ott <sebott@...ux.vnet.ibm.com>,
	"Tony Luck" <tony.luck@...el.com>, <linux-ia64@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	<sparclinux@...r.kernel.org>, Chris Metcalf <cmetcalf@...era.com>,
	Ralf Baechle <ralf@...ux-mips.org>,
	Lucas Stach <l.stach@...gutronix.de>,
	David Vrabel <david.vrabel@...rix.com>,
	"Sergei Shtylyov" <sergei.shtylyov@...entembedded.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Subject: Re: [PATCH v2 00/22] Use MSI chip framework to configure MSI/MSI-X
 in all platforms

On 2014/9/28 10:32, Yijing Wang wrote:
> On 2014/9/26 17:05, Thierry Reding wrote:
>> On Fri, Sep 26, 2014 at 10:54:32AM +0200, Thierry Reding wrote:
>> [...]
>>> At least for Tegra it's trivial to just hook it up in tegra_pcie_scan_bus()
>>> directly (patch attached).
>>
>> Really attached this time.
>>
>> Thierry
>>
> 
> It looks good to me, so I will update the arm pci hostbridge driver to assign
> pci root bus the msi chip instead of current pcibios_add_bus(). But for other
> platforms which only have a one msi chip, I will kept the arch_find_msi_chip()
> temporarily for more comments, especially from Bjorn.

Oh, sorry, I found designware and rcar use pci_scan_root_bus(), so we can not simply
assign msi chip to root bus in all host drivers's scan functions.

> 
> Thanks!
> Yijing.
> 


-- 
Thanks!
Yijing

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