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From: Rene Herman <rene.herman@keyaccess.nl>
To: Andi Kleen <andi@firstfloor.org>
Cc: "David P. Reed" <dpreed@reed.com>,
	linux-kernel@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops
Date: Fri, 07 Dec 2007 16:43:42 +0100	[thread overview]
Message-ID: <47596A2E.4060602@keyaccess.nl> (raw)
In-Reply-To: <20071207145430.GA5992@one.firstfloor.org>

On 07-12-07 15:54, Andi Kleen wrote:

>> My machine in question, for example, needs no waiting within CMOS_READs 
>> at all.   And I doubt any other chip/device needs waiting that isn't 
> 
> I don't know about CMOS, but there were definitely some not too ancient
> systems (let's say not more than 10 years) who required IO delays in the
> floppy driver and the 8253/8259. But on those the jumps are already
> far too fast.

Also see Alan's replies in the thread I posted a link to:

http://linux.derkeiler.com/Mailing-Lists/Kernel/2003-09/5700.html

Also 8254 (PIT) at least it seems.

Rene.

  reply	other threads:[~2007-12-07 15:44 UTC|newest]

Thread overview: 125+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-06 22:38 RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops David P. Reed
2007-12-07  0:15 ` Alan Cox
2007-12-07 10:44 ` Andi Kleen
2007-12-07 14:50   ` David P. Reed
2007-12-05 11:10     ` Pavel Machek
2007-12-08  0:21       ` Andi Kleen
2007-12-07 14:54     ` Andi Kleen
2007-12-07 15:43       ` Rene Herman [this message]
2007-12-07 16:28         ` Rene Herman
2007-12-11  0:31           ` H. Peter Anvin
2007-12-11  5:53       ` H. Peter Anvin
2007-12-07 16:04   ` Alan Cox
2007-12-07 16:31     ` Andi Kleen
2007-12-07 17:19       ` Alan Cox
2007-12-07 18:45         ` Rene Herman
2007-12-07 18:42           ` Alan Cox
2007-12-07 19:25             ` Rene Herman
2007-12-07 21:45               ` Alan Cox
2007-12-08 19:25     ` David P. Reed
2007-12-08 19:50       ` Andi Kleen
2007-12-08 20:47         ` David P. Reed
2007-12-08 21:04           ` Alan Cox
2007-12-08 20:26       ` Alan Cox
2007-12-11  5:58         ` H. Peter Anvin
2007-12-09  5:04       ` Rene Herman
2007-12-09 13:22       ` Pavel Machek
2007-12-11 15:14       ` Lennart Sorensen
2007-12-09 12:54     ` Pavel Machek
2007-12-09 13:41       ` Dr. David Alan Gilbert
2007-12-09 15:54       ` Ondrej Zary
2007-12-09 16:59       ` Andi Kleen
2007-12-09 21:25         ` Pavel Machek
2007-12-09 22:29           ` Alan Cox
2007-12-09 23:22             ` Pavel Machek
2007-12-10 12:02               ` Alan Cox
2007-12-10  4:17           ` Rene Herman
2007-12-10 11:30             ` Krzysztof Halasa
2007-12-10 12:08               ` Rene Herman
2007-12-10 18:02               ` Ondrej Zary
2007-12-11  1:10               ` David Newall
2007-12-11  1:25                 ` H. Peter Anvin
2007-12-11  1:42                   ` David Newall
2007-12-11  1:46                     ` H. Peter Anvin
2007-12-11  1:51                     ` H. Peter Anvin
2007-12-11  7:40                     ` Paul Rolland
2007-12-11  9:50                       ` Rene Herman
2007-12-11 12:08                         ` David Newall
2007-12-11 13:16                           ` Rene Herman
2007-12-11 13:32                             ` Paul Rolland
2007-12-11 14:15                               ` Rene Herman
2007-12-11 15:28                                 ` Rene Herman
2007-12-11 15:37                                   ` Paul Rolland
2007-12-11 15:53                                     ` Rene Herman
2007-12-11 16:58                                       ` David P. Reed
2007-12-11 17:01                                         ` Rene Herman
2007-12-11 17:05                                         ` H. Peter Anvin
2007-12-11 17:32                                         ` Alan Cox
2007-12-11 19:19                                           ` David P. Reed
2007-12-11 19:36                                             ` Pavel Machek
2007-12-11 20:16                                             ` Alan Cox
2007-12-11 20:27                                             ` linux-os (Dick Johnson)
2007-12-11 20:34                                               ` Rene Herman
2007-12-11 21:03                                                 ` David P. Reed
2007-12-11 23:56                                               ` David P. Reed
2007-12-12 13:11                                                 ` linux-os (Dick Johnson)
2007-12-12 16:12                                                   ` Alan Cox
2007-12-14 14:33                                                     ` Ingo Molnar
2007-12-16 21:26                                                       ` Pavel Machek
2007-12-17  0:02                                                         ` Alan Cox
2007-12-17  0:03                                                         ` Alan Cox
2007-12-17  0:28                                                           ` Pavel Machek
2007-12-17 14:42                                                             ` Ingo Molnar
2007-12-27 10:39                                                               ` Pavel Machek
2007-12-12 19:42                                                   ` Attitude problems David P. Reed
2007-12-12 20:31                                                     ` linux-os (Dick Johnson)
2007-12-14 16:01                                                       ` linux-os (Dick Johnson)
2007-12-11 16:32                                   ` RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops John Stoffel
2007-12-11 16:40                                     ` Rene Herman
2007-12-11 13:50                             ` David Newall
2007-12-11 14:14                               ` Rene Herman
2007-12-11 14:25                               ` Alan Cox
2007-12-12 22:18                                 ` David Newall
2007-12-12 23:00                                   ` Alan Cox
2007-12-13 13:13                                     ` David P. Reed
2007-12-13 13:21                                       ` Alan Cox
2007-12-14  1:50                                         ` David P. Reed
2007-12-14 15:16                                           ` Alan Cox
2007-12-11 15:41                               ` linux-os (Dick Johnson)
2007-12-11 16:30                                 ` Andi Kleen
2007-12-11 16:50                                   ` Rene Herman
2007-12-11 17:00                                     ` David P. Reed
2007-12-11 17:04                                       ` Rene Herman
2007-12-11 17:27                                         ` Rene Herman
2007-12-11 19:18                                         ` Pavel Machek
2007-12-11 19:16                                     ` Pavel Machek
2007-12-11 19:59                                       ` Rene Herman
2007-12-11 19:59                                       ` Rene Herman
2007-12-11 20:00                                       ` Rene Herman
2007-12-11 20:00                                       ` Rene Herman
2007-12-12 20:07                                         ` More info on port 80 symptoms on MCP51 machine David P. Reed
2007-12-12 20:26                                           ` Rene Herman
2007-12-12 20:37                                             ` David P. Reed
2007-12-12 20:58                                             ` Rene Herman
2007-12-12 21:01                                               ` Alan Cox
2007-12-12 21:12                                                 ` H. Peter Anvin
2007-12-12 21:29                                                   ` Alan Cox
2007-12-15 22:34                                                   ` Allen Martin
2007-12-15 22:46                                                     ` H. Peter Anvin
2007-12-16  0:46                                                     ` David P. Reed
2007-12-12 21:05                                               ` H. Peter Anvin
2007-12-14 22:05                                                 ` Chuck Ebbert
2007-12-15  7:22                                                   ` Rene Herman
2007-12-11 13:14                     ` RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops Alan Cox
2007-12-11 13:32                       ` Andi Kleen
2007-12-11 13:47                         ` Pavel Machek
2007-12-11 13:50                           ` Andi Kleen
2007-12-14 13:33                             ` Ingo Molnar
2007-12-11  6:54                   ` Rene Herman
2007-12-11 17:01                     ` H. Peter Anvin
     [not found] <fa./27SNSh+L5T3iqFNPdHClEu+yT0@ifi.uio.no>
2007-12-07  0:23 ` Robert Hancock
2007-12-07  5:09   ` Rene Herman
2007-12-07  5:54     ` David P. Reed
2007-12-07  7:17       ` Rene Herman
2007-12-07  7:34         ` Rene Herman
2007-12-07 10:49     ` Andi Kleen

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