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From: Jeff Garzik <jgarzik@pobox.com>
To: Andi Kleen <ak@suse.de>
Cc: Adrian Bunk <bunk@fs.tum.de>,
	ebiederm@xmission.com, akpm@osdl.org, richard.brunner@amd.com,
	linux-kernel@vger.kernel.org, torvalds@osdl.org
Subject: Re: [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata
Date: Fri, 12 Sep 2003 14:45:39 -0400	[thread overview]
Message-ID: <3F621453.40101@pobox.com> (raw)
In-Reply-To: <20030912202851.3529e7e7.ak@suse.de>

Andi Kleen wrote:
>>config X86_USE_3DNOW
>>        bool
>>        depends on MCYRIXIII || MK7
>>        default y
> 
> 
> All 3dnow! code is dynamically patched depending on the CPUID.


Note that the people who care most about x86 kernel size, such as people 
running on brand new 486 and 586 embedded processors (AMD Elan, ...) are 
precisely the people that don't need the "convenience" of having the 
feature dynamically patched into the kernel.

Removal of CONFIG_SSE2 was wrong for this same reason.

300 bytes here, 300 bytes there, and all this code is adding up quick.

We have CONFIG_EMBEDDED to hide such things from your sight, so you 
don't even have to worry about them...  they will always be dynamically 
patched in your kernels :)

	Jeff




  parent reply	other threads:[~2003-09-12 18:48 UTC|newest]

Thread overview: 123+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-09-11  0:56 Update on AMD Athlon/Opteron/Athlon64 Prefetch Errata richard.brunner
2003-09-11  1:27 ` [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata Andi Kleen
2003-09-11  1:44   ` Andrew Morton
2003-09-11  1:47     ` Andi Kleen
2003-09-11 14:15       ` Jeff Garzik
2003-09-11 14:26         ` Andi Kleen
2003-09-11 14:34           ` Jeff Garzik
2003-09-11 14:58             ` Andi Kleen
2003-09-11 15:06               ` Jeff Garzik
2003-09-11 20:08               ` bill davidsen
2003-09-11 19:56             ` bill davidsen
2003-09-11 20:44               ` Alan Cox
2003-09-11 21:29                 ` Mike Fedyk
2003-09-11 21:38                 ` bill davidsen
2003-09-12 17:32             ` Eric W. Biederman
2003-09-12 17:56               ` Andi Kleen
2003-09-12 17:59                 ` Jeff Garzik
2003-09-12 18:22                   ` Adrian Bunk
2003-09-12 18:28                     ` Andi Kleen
2003-09-12 18:39                       ` Jeff Garzik
2003-09-12 18:45                       ` Jeff Garzik [this message]
2003-09-12 18:48                       ` Adrian Bunk
2003-09-12 19:07                         ` Andi Kleen
2003-09-12 19:05                       ` Martin Schlemmer
2003-09-12 19:30                         ` Andi Kleen
2003-09-12 19:58                           ` Martin Schlemmer
2003-09-12 20:00                           ` Adrian Bunk
2003-09-15  0:15                           ` bill davidsen
2003-09-14 23:51                       ` bill davidsen
2003-09-14 23:49                     ` bill davidsen
2003-09-14 23:47                 ` bill davidsen
2003-09-15  1:02                   ` Zwane Mwaikambo
2003-09-15  2:08                     ` Nick Piggin
2003-09-15  3:55                     ` Bill Davidsen
2003-09-15  7:45                       ` Alan Cox
2003-09-15 12:11                         ` Bill Davidsen
2003-09-15 13:48                           ` Alan Cox
2003-09-15 18:50                             ` Bill Davidsen
2003-09-12 18:03               ` Mike Fedyk
2003-09-11 13:54   ` Linus Torvalds
2003-09-11 14:01     ` Andi Kleen
2003-09-11 14:14       ` Dave Jones
2003-09-11 14:29         ` Andi Kleen
2003-09-11 14:14     ` Alan Cox
2003-09-11 14:24       ` Andi Kleen
2003-09-11 14:28         ` Dave Jones
2003-09-11 14:32           ` Andi Kleen
2003-09-11 20:14         ` bill davidsen
2003-09-11 16:58   ` Jamie Lokier
2003-09-11 17:05     ` Andi Kleen
2003-09-11 17:32       ` Jamie Lokier
2003-09-11 17:39         ` Andi Kleen
2003-09-11 17:48           ` Jamie Lokier
2003-09-11 18:18             ` Andi Kleen
2003-09-11 18:59               ` Jamie Lokier
2003-09-11  3:43 Nakajima, Jun
2003-09-11  4:03 ` Valdis.Kletnieks
     [not found] <uqD5.3BI.3@gated-at.bofh.it>
2003-09-11  4:14 ` Andi Kleen
2003-09-11  4:58   ` dada1
2003-09-11  5:11     ` Andi Kleen
2003-09-11  5:58       ` dada1
2003-09-11  4:55 richard.brunner
2003-09-11 16:55 ` Jamie Lokier
2003-09-12 14:14 ` Martin Schlemmer
2003-09-11 17:09 richard.brunner
2003-09-11 17:14 richard.brunner
2003-09-11 17:17 richard.brunner
2003-09-13 16:54 ` Pavel Machek
2003-09-12 21:24 John Bradford
2003-09-15  6:32 John Bradford
2003-09-15  7:40 ` Alan Cox
2003-09-15 12:02   ` Bill Davidsen
2003-09-15 11:48 ` Bill Davidsen
2003-09-15 20:55 ` Adrian Bunk
2003-09-16  0:26   ` Bill Davidsen
2003-09-15  8:31 John Bradford
2003-09-15  8:32 ` Nick Piggin
2003-09-15 20:51   ` Adrian Bunk
2003-09-15  9:39 John Bradford
2003-09-15  9:58 ` Nick Piggin
2003-09-15 10:54 John Bradford
2003-09-15 10:52 ` Nick Piggin
2003-09-15 13:45 ` Alan Cox
2003-09-15 18:44   ` Bill Davidsen
2003-09-15 11:46 John Bradford
2003-09-15 12:38 ` Nick Piggin
2003-09-15 13:46   ` Chris Meadors
2003-09-15 14:00     ` Nick Piggin
2003-09-16 15:06   ` Bill Davidsen
2003-09-16 15:24     ` Nick Piggin
2003-09-15 12:28 Mikael Pettersson
2003-09-15 18:13 ` Bill Davidsen
2003-09-16 11:54 ` Jamie Lokier
2003-09-15 12:43 John Bradford
2003-09-15 18:21 ` Bill Davidsen
2003-09-15 14:21 John Bradford
2003-09-15 16:21 richard.brunner
2003-09-15 19:15 ` Bill Davidsen
2003-09-16 11:46 ` Jamie Lokier
2003-09-16 13:30   ` Dave Jones
2003-09-16 13:52     ` Bill Davidsen
2003-09-16 15:25       ` Timothy Miller
2003-09-16 16:53         ` Bill Davidsen
2003-09-16 17:22         ` Jamie Lokier
2003-09-16 17:23       ` Jamie Lokier
2003-09-18  7:43 ` Pavel Machek
2003-09-18 14:05   ` Dave Jones
2003-09-18 15:56     ` Jamie Lokier
2003-09-18 17:34   ` Bill Davidsen
     [not found] <200309150632.h8F6WnHb000589@81-2-122-30.bradfords.org.uk.suse.lists.linux.kernel>
     [not found] ` <1063611650.2674.1.camel@dhcp23.swansea.linux.org.uk.suse.lists.linux.kernel>
2003-09-15 18:29   ` Andi Kleen
2003-09-15 19:19 John Bradford
2003-09-15 19:34 John Bradford
2003-09-15 19:25 ` Bill Davidsen
2003-09-15 22:28 ` Alan Cox
2003-09-15 19:51 richard.brunner
2003-09-16  0:01 ` David Lang
2003-09-16  0:20 ` Bill Davidsen
2003-09-16 11:50 ` Jamie Lokier
2003-09-16 13:46   ` Bill Davidsen
2003-09-16 17:21     ` Jamie Lokier
2003-09-15 20:03 Nakajima, Jun
2003-09-15 20:20 Nakajima, Jun
2003-09-16  2:23 richard.brunner

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