Re: [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1

From	Julien Grall <julien.grall@citrix.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1
Date	2015-09-11 15:00 +0200
Message-ID	<q7w5Q-203-15@gated-at.bofh.it> (permalink)
References	(3 earlier) <q76O6-6hn-7@gated-at.bofh.it> <q7cTw-6MC-35@gated-at.bofh.it> <q7udI-7KK-17@gated-at.bofh.it> <q7udI-7KK-25@gated-at.bofh.it> <q7uno-8bA-25@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 11/09/15 12:09, Marc Zyngier wrote:
> On 11/09/15 11:59, Julien Grall wrote:
>>
>>
>> On 11/09/2015 11:54, Ian Campbell wrote:
>>> On Thu, 2015-09-10 at 17:23 +0100, Julien Grall wrote:
>>>> I applied the two patches on top of linus/master and I'm able to boot
>>>> correctly on X-gene. Thank you!
>>>
>>> Perhaps we should replicate this approach in Xen and get rid of
>>>   PLATFORM_QUIRK_GIC_64K_STRIDE?
>>
>> I was thinking to do it. But, I wasn't sure if it was worth to get a 
>> such "ugly" patch compare to the quirk.
> 
> It is not a quirk. It is actually recommended in the SBSA spec. The
> patch is ugly because we can't do the right thing on the one platform
> that actually implemented ARM's own recommendation (we can't tell the
> bloody firmware to stop overriding our DT).
> 
> I would otherwise have added a "arm,use-sbsa-aliasing" property (or
> something similar) instead of trying to guess things...

I will give a look to port this patch on Xen.

Regards,

-- 
Julien Grall
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Re: [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1 Julien Grall <julien.grall@citrix.com> - 2015-09-09 21:30 +0200
  Re: [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1 Marc Zyngier <marc.zyngier@arm.com> - 2015-09-10 12:00 +0200
    Re: [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1 Marc Zyngier <marc.zyngier@arm.com> - 2015-09-10 13:00 +0200
    Re: [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1 Julien Grall <julien.grall@citrix.com> - 2015-09-10 18:30 +0200
      Re: [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1 Julien Grall <julien.grall@citrix.com> - 2015-09-10 18:40 +0200
      Re: [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1 Marc Zyngier <marc.zyngier@arm.com> - 2015-09-10 18:40 +0200
      Re: [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1 Ian Campbell <ian.campbell@citrix.com> - 2015-09-11 13:00 +0200
        Re: [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1 Julien Grall <julien.grall@citrix.com> - 2015-09-11 13:00 +0200
          Re: [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1 Marc Zyngier <marc.zyngier@arm.com> - 2015-09-11 13:10 +0200
            Re: [PATCH v4 3/4] irqchip: GIC: Convert to EOImode == 1 Julien Grall <julien.grall@citrix.com> - 2015-09-11 15:00 +0200

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