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From: "J.A. Magallon" <jamagallon@able.es>
To: Lista Linux-Kernel <linux-kernel@vger.kernel.org>
Subject: Use of CONFIG_M686
Date: Tue, 28 May 2002 00:22:53 +0200	[thread overview]
Message-ID: <20020527222253.GG1848@werewolf.able.es> (raw)

Hi all...

Grepping through the sources or the kernel in search of CONFIG_M686
occurences, there are some places where it looks like that flag is
used as 'Anything bigger than a Pentium'. Now kernel has configs
for PIII, P4, probably PII.

It is the f00f bug handling. Files:

arch/i386/kernel/traps.c:

#ifndef CONFIG_M686 <=================== which also passes if PII, P4...
void __init trap_init_f00f_bug(void)
...

arch/i386/kernel/setup.c:

static void __init init_intel(struct cpuinfo_x86 *c)
{
#ifndef CONFIG_M686 <=================== again
    static int f00f_workaround_enabled = 0;
...


So thats why I asked if we could use a CONFIG_MPENTIUMPRO, and make
CONFIG_M686 a generic flag that is also defined for anything bigger
than a Pentium (that looks like the current usage).

So:
Pentium -> M586
PPro    -> MPENTIUMPRO M686
PII     -> MPENTIUMII  M686
PIII    -> MPENTIUMIII M686
P4      -> MPENTIUM4   M686


-- 
J.A. Magallon                           #  Let the source be with you...        
mailto:jamagallon@able.es
Mandrake Linux release 8.3 (Cooker) for i586
Linux werewolf 2.4.19-pre8-jam4 #2 SMP dom may 26 11:20:42 CEST 2002 i686

             reply	other threads:[~2002-05-27 22:23 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-05-27 22:22 J.A. Magallon [this message]
2002-05-27 22:29 ` Use of CONFIG_M686 J.A. Magallon
2002-05-28  0:05   ` Alan Cox
2002-05-29 14:25     ` Dave Jones
2002-05-27 22:38 ` Brian Gerst

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