From: holler@ahsoftware.de (Alexander Holler)
To: linux-arm-kernel@lists.infradead.org
Subject: ACPI vs DT at runtime
Date: Mon, 05 May 2014 09:06:14 +0200 [thread overview]
Message-ID: <53673866.9000105@ahsoftware.de> (raw)
In-Reply-To: <97692EF2-013E-4E4B-BC16-E0915D67EFEC@antoniou-consulting.com>
Am 22.11.2013 13:00, schrieb Pantelis Antoniou:
> As one that's going to be dealing with this, please don't take the DTS
> files from the kernel.
>
> If you do this, I can guarantee that within a year almost no ARM board using DT
> will boot a mainline kernel.
>
> The reason is that vendors have enough trouble (and failing) tracking a single
> tree, adding yet another will just end to the vendor trees as far as the eye can see.
>
> Maybe, maybe, EVMs from silicon vendors will still boot, but I doubt any other
> customer board will work.
A bit late (I don't follow the ML (or what happens in the ARM world)
closely, but as I've recently read that ARM64 will go UEFI and ACPI, I
wonder what was the reasoning behind that decision.
Does anyone really assume we will become high quality UEFI and ACPI
blobs from vendors? And such with reasonable support/update periods?
For me that sounds like someone asked dreamers and was unable to adjust
those answers in regard to reality.
Regards,
Alexander Holler
WARNING: multiple messages have this Message-ID (diff)
From: Alexander Holler <holler-SXC+2es9fhnfWeYVQQPykw@public.gmane.org>
To: Pantelis Antoniou
<panto-wVdstyuyKrO8r51toPun2/C9HSW9iNxf@public.gmane.org>,
Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Russell King - ARM Linux
<linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
Richard Cochran
<richardcochran-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Grant Likely
<grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>,
Jon Masters <jonathan-Zp4isUonpHBD60Wz+7aTrA@public.gmane.org>,
Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Olof Johansson <olof-nZhT3qVonbNeoWH0uzbU5w@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>
Subject: Re: ACPI vs DT at runtime
Date: Mon, 05 May 2014 09:06:14 +0200 [thread overview]
Message-ID: <53673866.9000105@ahsoftware.de> (raw)
In-Reply-To: <97692EF2-013E-4E4B-BC16-E0915D67EFEC-wVdstyuyKrO8r51toPun2/C9HSW9iNxf@public.gmane.org>
Am 22.11.2013 13:00, schrieb Pantelis Antoniou:
> As one that's going to be dealing with this, please don't take the DTS
> files from the kernel.
>
> If you do this, I can guarantee that within a year almost no ARM board using DT
> will boot a mainline kernel.
>
> The reason is that vendors have enough trouble (and failing) tracking a single
> tree, adding yet another will just end to the vendor trees as far as the eye can see.
>
> Maybe, maybe, EVMs from silicon vendors will still boot, but I doubt any other
> customer board will work.
A bit late (I don't follow the ML (or what happens in the ARM world)
closely, but as I've recently read that ARM64 will go UEFI and ACPI, I
wonder what was the reasoning behind that decision.
Does anyone really assume we will become high quality UEFI and ACPI
blobs from vendors? And such with reasonable support/update periods?
For me that sounds like someone asked dreamers and was unable to adjust
those answers in regard to reality.
Regards,
Alexander Holler
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next prev parent reply other threads:[~2014-05-05 7:06 UTC|newest]
Thread overview: 186+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-15 1:44 ACPI vs DT at runtime Olof Johansson
2013-11-15 1:44 ` Olof Johansson
2013-11-15 9:57 ` Mark Rutland
2013-11-15 9:57 ` Mark Rutland
[not found] ` <20131115175241. GB27174@quad.lixom.net>
2013-11-15 17:52 ` Olof Johansson
2013-11-15 17:52 ` Olof Johansson
2013-11-15 18:08 ` Russell King - ARM Linux
2013-11-15 18:08 ` Russell King - ARM Linux
2013-11-15 18:42 ` Olof Johansson
2013-11-15 18:42 ` Olof Johansson
2013-11-15 19:56 ` Arnd Bergmann
2013-11-15 19:56 ` Arnd Bergmann
2013-11-15 23:21 ` Russell King - ARM Linux
2013-11-15 23:21 ` Russell King - ARM Linux
2013-11-18 15:05 ` Arnd Bergmann
2013-11-18 15:05 ` Arnd Bergmann
2013-11-18 15:19 ` Russell King - ARM Linux
2013-11-18 15:19 ` Russell King - ARM Linux
2013-11-18 15:46 ` Arnd Bergmann
2013-11-18 15:46 ` Arnd Bergmann
2013-11-21 16:11 ` Grant Likely
2013-11-21 16:11 ` Grant Likely
2013-11-21 16:10 ` Grant Likely
2013-11-21 16:10 ` Grant Likely
2013-11-21 18:26 ` Arnd Bergmann
2013-11-21 18:26 ` Arnd Bergmann
2013-11-21 19:40 ` Mark Brown
2013-11-21 19:40 ` Mark Brown
2013-11-21 16:00 ` Grant Likely
2013-11-21 16:00 ` Grant Likely
2013-11-15 18:13 ` David Goodenough
2013-11-21 16:15 ` Grant Likely
2013-11-18 17:47 ` Jon Masters
2013-11-18 17:47 ` Jon Masters
2013-11-19 11:30 ` Mark Rutland
2013-11-19 11:30 ` Mark Rutland
2013-11-19 11:35 ` Mark Rutland
2013-11-19 11:35 ` Mark Rutland
2013-11-19 11:51 ` Leif Lindholm
2013-11-19 11:51 ` Leif Lindholm
2013-11-19 11:57 ` Russell King - ARM Linux
2013-11-19 11:57 ` Russell King - ARM Linux
2013-11-19 13:56 ` Stefano Stabellini
2013-11-19 13:56 ` Stefano Stabellini
2013-11-19 14:38 ` Mark Rutland
2013-11-19 14:38 ` Mark Rutland
2013-11-19 14:59 ` Leif Lindholm
2013-11-19 14:59 ` Leif Lindholm
2013-11-19 18:23 ` Olof Johansson
2013-11-19 18:23 ` Olof Johansson
2013-11-19 14:05 ` Arnd Bergmann
2013-11-19 14:05 ` Arnd Bergmann
2013-11-19 15:21 ` Mark Rutland
2013-11-19 15:21 ` Mark Rutland
2013-11-19 16:19 ` Arnd Bergmann
2013-11-19 16:19 ` Arnd Bergmann
2013-11-19 18:34 ` Olof Johansson
2013-11-19 18:34 ` Olof Johansson
2013-11-19 19:06 ` Tom Rini
2013-11-19 19:06 ` Tom Rini
2013-11-19 18:19 ` Olof Johansson
2013-11-19 18:19 ` Olof Johansson
2013-11-21 16:37 ` Grant Likely
2013-11-21 16:37 ` Grant Likely
2013-11-21 16:29 ` Grant Likely
2013-11-21 16:29 ` Grant Likely
2013-11-21 17:01 ` Matthew Garrett
2013-11-21 17:01 ` Matthew Garrett
2013-11-21 18:38 ` Grant Likely
2013-11-21 18:38 ` Grant Likely
2013-11-21 17:58 ` Olof Johansson
2013-11-21 17:58 ` Olof Johansson
2013-11-21 18:19 ` Matthew Garrett
2013-11-21 18:19 ` Matthew Garrett
2013-11-21 18:33 ` Arnd Bergmann
2013-11-21 18:33 ` Arnd Bergmann
2013-11-21 18:54 ` Russell King - ARM Linux
2013-11-21 18:54 ` Russell King - ARM Linux
[not found] ` < CAOesGMgzUSMDy99XojipfRd5OM88UhfbCYO0aoc5m-Q8Fwnddg@mail.gmail.com>
[not found] ` < 20131121190126.GZ16735@n2100.arm.linux.org.uk>
2013-11-21 18:59 ` Olof Johansson
2013-11-21 18:59 ` Olof Johansson
2013-11-21 19:01 ` Russell King - ARM Linux
2013-11-21 19:01 ` Russell King - ARM Linux
2013-11-21 19:31 ` Olof Johansson
2013-11-21 19:31 ` Olof Johansson
2013-11-21 20:44 ` Grant Likely
2013-11-21 20:44 ` Grant Likely
2013-11-21 18:53 ` Mark Brown
2013-11-21 18:53 ` Mark Brown
2013-11-15 18:28 ` Jason Gunthorpe
2013-11-15 18:28 ` Jason Gunthorpe
2013-11-15 18:57 ` Arnd Bergmann
2013-11-15 18:57 ` Arnd Bergmann
2013-11-18 5:19 ` Jon Masters
2013-11-18 5:26 ` Jon Masters
2013-11-18 19:25 ` Olof Johansson
2013-11-18 19:25 ` Olof Johansson
2013-11-18 20:43 ` Jon Masters
2013-11-18 20:43 ` Jon Masters
2013-11-18 21:25 ` Olof Johansson
2013-11-18 21:25 ` Olof Johansson
2013-11-18 7:22 ` Richard Cochran
2013-11-18 13:55 ` Stefano Stabellini
2013-11-18 15:00 ` Mark Brown
2013-11-18 19:13 ` Olof Johansson
2013-11-18 19:13 ` Olof Johansson
2013-11-19 9:12 ` Richard Cochran
2013-11-19 9:12 ` Richard Cochran
2013-11-19 18:48 ` Olof Johansson
2013-11-19 18:48 ` Olof Johansson
2013-11-20 6:40 ` Richard Cochran
2013-11-20 6:40 ` Richard Cochran
2013-11-21 18:16 ` Grant Likely
2013-11-21 18:16 ` Grant Likely
2013-11-21 19:21 ` Russell King - ARM Linux
2013-11-21 19:21 ` Russell King - ARM Linux
2013-11-21 20:47 ` Grant Likely
2013-11-21 20:47 ` Grant Likely
2013-11-22 11:43 ` Catalin Marinas
2013-11-22 11:43 ` Catalin Marinas
2013-11-22 12:00 ` Pantelis Antoniou
2013-11-22 12:00 ` Pantelis Antoniou
2014-05-05 7:06 ` Alexander Holler [this message]
2014-05-05 7:06 ` Alexander Holler
2014-05-05 14:41 ` Arnd Bergmann
2014-05-05 14:41 ` Arnd Bergmann
2014-05-05 15:29 ` Alexander Holler
2014-05-05 15:29 ` Alexander Holler
2014-05-05 17:29 ` Arnd Bergmann
2014-05-05 17:29 ` Arnd Bergmann
2014-05-06 15:37 ` Grant Likely
2014-05-06 15:37 ` Grant Likely
2014-05-06 15:27 ` Grant Likely
2014-05-06 15:27 ` Grant Likely
2014-05-06 16:32 ` Olof Johansson
2014-05-06 16:32 ` Olof Johansson
2013-11-18 15:28 ` Rob Herring
2013-11-18 19:09 ` Olof Johansson
2013-11-18 19:09 ` Olof Johansson
2013-11-18 20:54 ` Jon Masters
2013-11-18 20:54 ` Jon Masters
2013-11-18 21:50 ` Olof Johansson
2013-11-18 21:50 ` Olof Johansson
2013-11-18 21:32 ` Grant Likely
2013-11-18 21:32 ` Grant Likely
2013-11-18 22:47 ` David Goodenough
2013-11-19 12:48 ` Arnd Bergmann
2013-11-19 12:48 ` Arnd Bergmann
2013-11-19 13:34 ` David Goodenough
2013-11-19 16:52 ` Arnd Bergmann
2013-11-21 18:23 ` Grant Likely
2013-11-19 14:33 ` Grant Likely
2013-11-20 13:49 ` Grant Likely
2013-11-20 13:49 ` Grant Likely
2013-11-20 17:43 ` Stefano Stabellini
2013-11-20 17:43 ` Stefano Stabellini
2013-11-20 17:47 ` Olof Johansson
2013-11-20 17:47 ` Olof Johansson
2013-11-15 20:58 ` Arnd Bergmann
2013-11-15 20:58 ` Arnd Bergmann
2013-11-15 21:44 ` Olof Johansson
2013-11-15 21:44 ` Olof Johansson
2013-11-17 17:18 ` Stefano Stabellini
2013-11-17 17:18 ` Stefano Stabellini
2013-11-17 18:10 ` Arnd Bergmann
2013-11-17 18:10 ` Arnd Bergmann
[not found] ` < CAOesGMiYyOcvr3Aqs-p8zc=XDwJM9NZtNxtxrTZssc6F=siZCw@mail.gmail.com>
2013-11-17 22:20 ` Olof Johansson
2013-11-17 22:20 ` Olof Johansson
2013-11-18 8:45 ` Arnd Bergmann
2013-11-18 8:45 ` Arnd Bergmann
2013-11-18 17:33 ` Jon Masters
2013-11-18 17:38 ` Russell King - ARM Linux
2013-11-18 19:21 ` Olof Johansson
2013-11-18 19:21 ` Olof Johansson
2013-11-21 18:26 ` Grant Likely
2013-11-18 15:04 ` Mark Brown
2013-11-18 15:04 ` Mark Brown
2013-11-18 15:10 ` Arnd Bergmann
2013-11-18 15:10 ` Arnd Bergmann
2013-11-18 21:38 ` Grant Likely
2013-11-18 21:38 ` Grant Likely
2013-11-18 23:25 ` Leif Lindholm
2013-11-18 23:25 ` Leif Lindholm
2013-11-18 23:29 ` Olof Johansson
2013-11-18 23:29 ` Olof Johansson
2013-11-18 23:34 ` Leif Lindholm
2013-11-18 23:34 ` Leif Lindholm
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