linux-kernel - Re: [PATCH v2 6/6] drivers/pci/hyperv/arm64: vPCI MSI IRQ domain from DT

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Date: Tue, 11 Jun 2024 07:40:05 -0700
From: Roman Kisel <romank@...ux.microsoft.com>
To: Bjorn Helgaas <helgaas@...nel.org>
Cc: Saurabh Singh Sengar <ssengar@...ux.microsoft.com>, arnd@...db.de,
 bhelgaas@...gle.com, bp@...en8.de, catalin.marinas@....com,
 dave.hansen@...ux.intel.com, decui@...rosoft.com, haiyangz@...rosoft.com,
 hpa@...or.com, kw@...ux.com, kys@...rosoft.com, lenb@...nel.org,
 lpieralisi@...nel.org, mingo@...hat.com, mhklinux@...look.com,
 rafael@...nel.org, robh@...nel.org, tglx@...utronix.de, wei.liu@...nel.org,
 will@...nel.org, linux-acpi@...r.kernel.org, linux-arch@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-hyperv@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org, x86@...nel.org,
 ssengar@...rosoft.com, sunilmut@...rosoft.com, vdso@...bites.dev
Subject: Re: [PATCH v2 6/6] drivers/pci/hyperv/arm64: vPCI MSI IRQ domain from
 DT



On 6/7/2024 12:55 PM, Bjorn Helgaas wrote:
> On Wed, May 15, 2024 at 01:12:38PM -0500, Bjorn Helgaas wrote:
>> On Wed, May 15, 2024 at 09:34:09AM -0700, Roman Kisel wrote:
>>>
>>>
>>> On 5/15/2024 2:48 AM, Saurabh Singh Sengar wrote:
>>>> On Tue, May 14, 2024 at 03:43:53PM -0700, Roman Kisel wrote:
>>>>> The hyperv-pci driver uses ACPI for MSI IRQ domain configuration
>>>>> on arm64 thereby it won't be able to do that in the VTL mode where
>>>>> only DeviceTree can be used.
>>>>>
>>>>> Update the hyperv-pci driver to discover interrupt configuration
>>>>> via DeviceTree.
>>>>
>>>> Subject prefix should be "PCI: hv:"
> 
> I forgot to also suggest that the subject line begin with a verb,
> e.g., "Get vPCI MSI IRQ domain from DT" or similar, again so it reads
> consistently with previous commits.
> 
> Oh, I see patch 5/6, "Get the irq number from DeviceTree" is also very
> similar.  It would be nice if they matched, e.g., both used "IRQ" and
> "DT".
> 
> Bjorn

Will update, thanks! Going to send another version during the next week 
most likely.

-- 
Thank you,
Roman