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From: Len Brown <lenb@kernel.org>
To: Jack Steiner <steiner@sgi.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
	hmh@hmh.eng.br, mingo@elte.hu, tglx@linutronix.de,
	tony.luck@gmail.com, linux-acpi@vger.kernel.org,
	linux-kernel@vger.kernel.org, gbeshers@sgi.com
Subject: Re: [RFC  - V2] - Mapping ACPI tables as CACHED
Date: Thu, 09 Dec 2010 01:12:57 -0500 (EST)	[thread overview]
Message-ID: <alpine.LFD.2.00.1012090104320.27964@x980> (raw)
In-Reply-To: <20101209035025.GB6697@sgi.com>

Jack,

I agree that we should try to map cached always,
and that we should try do the same thing on all platforms.

I favor continuing to map the tables in-place.
Yes, Toshiba has a quirk and we copy the tables there.
But frankly, we have no idea what the heck Toshiba is doing
and we don't want every platform to pay the price because
of some vendor specific evil.

Please send an upstream ready version of this RFC
(checkpatch clean), labled with "PATCH".

thanks,
Len Brown, Intel Open Source Technology Center


ps. acpidump can be updated to use /sys/firmware/acpi/tables
to get rid of the mmap stuff.  That is someplace on our todo list...

  reply	other threads:[~2010-12-09  6:12 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-22 15:22 [RFC] - Mapping ACPI tables as CACHED Jack Steiner
2010-07-22 15:52 ` Len Brown
2010-07-23 16:38   ` Jack Steiner
2010-07-23  1:46 ` ykzhao
2010-07-23  7:23   ` Ingo Molnar
2010-07-23 14:26     ` ykzhao
2010-08-17 14:45       ` Jack Steiner
2010-08-17 15:51       ` H. Peter Anvin
2010-08-17 14:42     ` Jack Steiner
2010-08-17 14:39   ` Jack Steiner
2010-07-24  0:14 ` Henrique de Moraes Holschuh
2010-07-24  0:45   ` Matthew Garrett
2010-07-24 12:26     ` Henrique de Moraes Holschuh
2010-08-17 14:49   ` Jack Steiner
2010-08-17 16:02     ` Linus Torvalds
2010-08-24 21:39   ` H. Peter Anvin
2010-08-26 17:17     ` [RFC - V2] " Jack Steiner
2010-08-26 18:08       ` H. Peter Anvin
2010-12-08 21:22         ` Jack Steiner
2010-12-09  1:27           ` H. Peter Anvin
2010-12-09  3:50             ` Jack Steiner
2010-12-09  6:12               ` Len Brown [this message]
2010-08-17 15:59 ` [RFC] " Jack Steiner
2010-08-26 17:47   ` Len Brown

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