From: Lorenzo Pieralisi <lorenzo.pieralisi-5wv7dgnIgG8@public.gmane.org>
To: Ard Biesheuvel <ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: Sinan Kaya <okaya-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
Lukas Wunner <lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
"linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Matt Fleming
<matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>,
Peter Jones <pjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Bjorn Helgaas <bhelgaas-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
Hanjun Guo <hanjun.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Heyi Guo <heyi.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
linux-pci <linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Yinghai Lu <yinghai-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH v3] efifb: avoid reconfiguration of BAR that covers the framebuffer
Date: Thu, 30 Mar 2017 11:05:32 +0100 [thread overview]
Message-ID: <20170330100524.GA22801@red-moon> (raw)
In-Reply-To: <CAKv+Gu-qRg8-YRCairppKrEfeLcW+OwVF8qZHp7vxXJA_AwPOw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
On Thu, Mar 30, 2017 at 09:46:39AM +0100, Ard Biesheuvel wrote:
[...]
> > I'm asking why we don't fix the actual problem in PCIe ARM64 adaptation instead
> > of working around it by quirks.
> >
> > I don't see any reason why ACPI ARM64 should carry the burden of legacy systems.
> >
> > Legacy only applies to DT based systems.
> >
>
> I fully agree with this point: ACPI implies firmware, and so we should
> be able to rely on firmware to have initialized the PCIe subsystem by
> the time the kernel gets to access it.
https://lkml.org/lkml/2016/3/3/458
Lorenzo
WARNING: multiple messages have this Message-ID (diff)
From: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: "linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
Matt Fleming <matt@codeblueprint.co.uk>,
linux-pci <linux-pci@vger.kernel.org>,
Peter Jones <pjones@redhat.com>,
Sinan Kaya <okaya@codeaurora.org>, Heyi Guo <heyi.guo@linaro.org>,
Lukas Wunner <lukas@wunner.de>,
Hanjun Guo <hanjun.guo@linaro.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Yinghai Lu <yinghai@kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v3] efifb: avoid reconfiguration of BAR that covers the framebuffer
Date: Thu, 30 Mar 2017 11:05:32 +0100 [thread overview]
Message-ID: <20170330100524.GA22801@red-moon> (raw)
In-Reply-To: <CAKv+Gu-qRg8-YRCairppKrEfeLcW+OwVF8qZHp7vxXJA_AwPOw@mail.gmail.com>
On Thu, Mar 30, 2017 at 09:46:39AM +0100, Ard Biesheuvel wrote:
[...]
> > I'm asking why we don't fix the actual problem in PCIe ARM64 adaptation instead
> > of working around it by quirks.
> >
> > I don't see any reason why ACPI ARM64 should carry the burden of legacy systems.
> >
> > Legacy only applies to DT based systems.
> >
>
> I fully agree with this point: ACPI implies firmware, and so we should
> be able to rely on firmware to have initialized the PCIe subsystem by
> the time the kernel gets to access it.
https://lkml.org/lkml/2016/3/3/458
Lorenzo
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: lorenzo.pieralisi@arm.com (Lorenzo Pieralisi)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3] efifb: avoid reconfiguration of BAR that covers the framebuffer
Date: Thu, 30 Mar 2017 11:05:32 +0100 [thread overview]
Message-ID: <20170330100524.GA22801@red-moon> (raw)
In-Reply-To: <CAKv+Gu-qRg8-YRCairppKrEfeLcW+OwVF8qZHp7vxXJA_AwPOw@mail.gmail.com>
On Thu, Mar 30, 2017 at 09:46:39AM +0100, Ard Biesheuvel wrote:
[...]
> > I'm asking why we don't fix the actual problem in PCIe ARM64 adaptation instead
> > of working around it by quirks.
> >
> > I don't see any reason why ACPI ARM64 should carry the burden of legacy systems.
> >
> > Legacy only applies to DT based systems.
> >
>
> I fully agree with this point: ACPI implies firmware, and so we should
> be able to rely on firmware to have initialized the PCIe subsystem by
> the time the kernel gets to access it.
https://lkml.org/lkml/2016/3/3/458
Lorenzo
next prev parent reply other threads:[~2017-03-30 10:05 UTC|newest]
Thread overview: 117+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-22 15:30 [PATCH v3] efifb: avoid reconfiguration of BAR that covers the framebuffer Ard Biesheuvel
2017-03-22 15:30 ` Ard Biesheuvel
2017-03-22 15:30 ` Ard Biesheuvel
[not found] ` <1490196629-28088-1-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2017-03-22 19:31 ` Lukas Wunner
2017-03-22 19:31 ` Lukas Wunner
2017-03-22 19:31 ` Lukas Wunner
2017-03-22 19:32 ` Ard Biesheuvel
2017-03-22 19:32 ` Ard Biesheuvel
2017-03-22 19:32 ` Ard Biesheuvel
[not found] ` <CAKv+Gu_X-SEnz7h9J8boqqjOQGHQawwdSAq4haH-OGu8zdfNfA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-03-23 8:48 ` Lukas Wunner
2017-03-23 8:48 ` Lukas Wunner
2017-03-23 8:48 ` Lukas Wunner
2017-03-23 9:04 ` Ard Biesheuvel
2017-03-23 9:04 ` Ard Biesheuvel
2017-03-23 9:04 ` Ard Biesheuvel
[not found] ` <CAKv+Gu93eJ-js3g7M6Jdm6XGMaWMswFmzBG2qNT4rn+3=1+EyA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-03-23 10:57 ` Lorenzo Pieralisi
2017-03-23 10:57 ` Lorenzo Pieralisi
2017-03-23 10:57 ` Lorenzo Pieralisi
2017-03-23 12:25 ` Ard Biesheuvel
2017-03-23 12:25 ` Ard Biesheuvel
2017-03-23 12:25 ` Ard Biesheuvel
2017-03-23 14:31 ` Lorenzo Pieralisi
2017-03-23 14:31 ` Lorenzo Pieralisi
2017-03-23 14:31 ` Lorenzo Pieralisi
2017-03-23 15:15 ` Ard Biesheuvel
2017-03-23 15:15 ` Ard Biesheuvel
2017-03-23 15:15 ` Ard Biesheuvel
2017-03-27 15:37 ` Ard Biesheuvel
2017-03-27 15:37 ` Ard Biesheuvel
2017-03-27 15:37 ` Ard Biesheuvel
2017-03-28 21:27 ` Sinan Kaya
2017-03-28 21:27 ` Sinan Kaya
2017-03-28 21:27 ` Sinan Kaya
2017-03-28 21:39 ` Ard Biesheuvel
2017-03-28 21:39 ` Ard Biesheuvel
2017-03-28 21:39 ` Ard Biesheuvel
[not found] ` <CAKv+Gu9LbwpnJNi1OL25MWvYPxEOfKRHcs2jA2121BPaQWPzow-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-03-28 21:49 ` Sinan Kaya
2017-03-28 21:49 ` Sinan Kaya
2017-03-28 21:49 ` Sinan Kaya
[not found] ` <27f50de3-721e-e8ec-00c8-b7a9d3cff0d6-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-03-30 8:46 ` Ard Biesheuvel
2017-03-30 8:46 ` Ard Biesheuvel
2017-03-30 8:46 ` Ard Biesheuvel
[not found] ` <CAKv+Gu-qRg8-YRCairppKrEfeLcW+OwVF8qZHp7vxXJA_AwPOw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-03-30 10:05 ` Lorenzo Pieralisi [this message]
2017-03-30 10:05 ` Lorenzo Pieralisi
2017-03-30 10:05 ` Lorenzo Pieralisi
2017-03-30 10:09 ` Ard Biesheuvel
2017-03-30 10:09 ` Ard Biesheuvel
2017-03-30 10:09 ` Ard Biesheuvel
2017-03-30 11:42 ` okaya
2017-03-30 11:42 ` okaya at codeaurora.org
2017-03-30 11:42 ` okaya
2017-03-30 13:38 ` Ard Biesheuvel
2017-03-30 13:38 ` Ard Biesheuvel
2017-03-30 13:38 ` Ard Biesheuvel
2017-03-30 13:50 ` Sinan Kaya
2017-03-30 13:50 ` Sinan Kaya
2017-03-30 13:50 ` Sinan Kaya
[not found] ` <ae87ae28-f50d-095f-576e-f3fd7f96dea2-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-04-02 15:16 ` Ard Biesheuvel
2017-04-02 15:16 ` Ard Biesheuvel
2017-04-02 15:16 ` Ard Biesheuvel
[not found] ` <CAKv+Gu8x0rQUnTUorknW-mW9LFgrxFYsXyy4LU_w9JbA-m_sjA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-10 15:28 ` Ard Biesheuvel
2017-04-10 15:28 ` Ard Biesheuvel
2017-04-10 15:28 ` Ard Biesheuvel
2017-04-10 16:53 ` Lorenzo Pieralisi
2017-04-10 16:53 ` Lorenzo Pieralisi
2017-04-10 16:53 ` Lorenzo Pieralisi
2017-04-10 17:06 ` Sinan Kaya
2017-04-10 17:06 ` Sinan Kaya
2017-04-10 17:06 ` Sinan Kaya
2017-04-10 17:13 ` Ard Biesheuvel
2017-04-10 17:13 ` Ard Biesheuvel
2017-04-10 17:13 ` Ard Biesheuvel
[not found] ` <CAKv+Gu-AN-OwnAJG5dt0Qg4GU8HxZBowTSA0H3LhNA3nHfrsQg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-10 17:29 ` Ard Biesheuvel
2017-04-10 17:29 ` Ard Biesheuvel
2017-04-10 17:29 ` Ard Biesheuvel
[not found] ` <CAKv+Gu9dS4OhLbBw59yKYQmoJ8SpFexzk9yH=XfXnzn8NJ4mcg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-11 13:16 ` Lorenzo Pieralisi
2017-04-11 13:16 ` Lorenzo Pieralisi
2017-04-11 13:16 ` Lorenzo Pieralisi
2017-04-11 16:06 ` Ard Biesheuvel
2017-04-11 16:06 ` Ard Biesheuvel
2017-04-11 16:06 ` Ard Biesheuvel
2017-04-23 1:45 ` Yinghai Lu
2017-04-23 1:45 ` Yinghai Lu
2017-04-23 1:45 ` Yinghai Lu
[not found] ` <20170423014546.GA2704-HmG2f/OLMhfd32I7TRUmRQWg3BAJk+jzdezBB/11ZoCIZ3GwZIjcak9v6f1uFnsJ2SarAXORi/o@public.gmane.org>
2017-04-27 13:55 ` Ard Biesheuvel
2017-04-27 13:55 ` Ard Biesheuvel
2017-04-27 13:55 ` Ard Biesheuvel
[not found] ` <CAKv+Gu_n7xP-2RtF44GVzwyoMXDOeF-bR43yStwp2y+oBNs4jg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-28 20:51 ` Yinghai Lu
2017-04-28 20:51 ` Yinghai Lu
2017-04-28 20:51 ` Yinghai Lu
2017-03-22 19:36 ` Sinan Kaya
2017-03-22 19:36 ` Sinan Kaya
2017-03-22 19:36 ` Sinan Kaya
2017-03-22 19:41 ` Ard Biesheuvel
2017-03-22 19:41 ` Ard Biesheuvel
2017-03-22 19:41 ` Ard Biesheuvel
2017-03-22 19:49 ` Sinan Kaya
2017-03-22 19:49 ` Sinan Kaya
2017-03-22 19:49 ` Sinan Kaya
2017-03-22 19:52 ` Ard Biesheuvel
2017-03-22 19:52 ` Ard Biesheuvel
2017-03-22 19:52 ` Ard Biesheuvel
2017-03-22 19:57 ` Sinan Kaya
2017-03-22 19:57 ` Sinan Kaya
2017-03-22 19:57 ` Sinan Kaya
[not found] ` <4ccb4d92-3830-3980-38c3-7085a3d97734-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-03-22 20:00 ` Ard Biesheuvel
2017-03-22 20:00 ` Ard Biesheuvel
2017-03-22 20:00 ` Ard Biesheuvel
2017-05-03 3:09 ` Heyi Guo
2017-05-03 3:09 ` Heyi Guo
2017-05-03 3:09 ` Heyi Guo
2017-05-18 14:01 ` Bjorn Helgaas
2017-05-18 14:01 ` Bjorn Helgaas
2017-05-18 14:01 ` Bjorn Helgaas
[not found] ` <20170518140154.GA24324-1RhO1Y9PlrlHTL0Zs8A6p5iNqAH0jzoTYJqu5kTmcBRl57MIdRCFDg@public.gmane.org>
2017-05-20 8:19 ` Heyi Guo
2017-05-20 8:19 ` Heyi Guo
2017-05-20 8:19 ` Heyi Guo
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