linux-kernel - Re: [PATCH v2] PCI/MSI: Enable PCI_MSI_IRQ

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Date:   Tue, 15 Oct 2019 07:59:07 +0200
From:   Michal Simek <michal.simek@...inx.com>
To:     Bjorn Helgaas <helgaas@...nel.org>,
        Christoph Hellwig <hch@...radead.org>
Cc:     Michal Simek <michal.simek@...inx.com>,
        linux-kernel@...r.kernel.org, monstr@...str.eu, git@...inx.com,
        Kuldeep Dave <kuldeep.dave@...inx.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Palmer Dabbelt <palmer@...ive.com>, linux-pci@...r.kernel.org,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Firoz Khan <firoz.khan@...aro.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        linux-riscv@...ts.infradead.org, Will Deacon <will@...nel.org>
Subject: Re: [PATCH v2] PCI/MSI: Enable PCI_MSI_IRQ_DOMAIN support for
 Microblaze

Hi Bjorn,

On 15. 10. 19 1:23, Bjorn Helgaas wrote:
> On Tue, Oct 08, 2019 at 08:46:52AM -0700, Christoph Hellwig wrote:
>>> diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
>>> index a304f5ea11b9..9d259372fbfd 100644
>>> --- a/drivers/pci/Kconfig
>>> +++ b/drivers/pci/Kconfig
>>> @@ -52,7 +52,7 @@ config PCI_MSI
>>>  	   If you don't know what to do here, say Y.
>>>  
>>>  config PCI_MSI_IRQ_DOMAIN
>>> -	def_bool ARC || ARM || ARM64 || X86 || RISCV
>>> +	def_bool ARC || ARM || ARM64 || X86 || RISCV || MICROBLAZE
>>
>> Can you find out what the actual dependency is so that we can
>> automatically enabled this instead of the weird arch list?
> 
> Hi Michal, I'll wait for your response on whether it's feasible to do
> something smarter than listing every arch here.  Please ping here or
> post a v3; since I marked this patch "Changed Requested" in patchwork,
> it's fallen off my to-do list.

I was waiting more for you to comment this. I was expecting that the
same question came last time when RISCV was added.
I am happy to investigate more about it but definitely some your input
would help.

Thanks,
Michal