From: davej@redhat.com
To: torvalds@osdl.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] Cleanup SEP errata workaround.
Date: Mon, 29 Sep 2003 18:04:34 +0100 [thread overview]
Message-ID: <E1A41Rq-0000N1-00@hardwired> (raw)
This looks a little simpler, and has the same effect.
diff -urpN --exclude-from=/home/davej/.exclude bk-linus/arch/i386/kernel/cpu/intel.c linux-2.5/arch/i386/kernel/cpu/intel.c
--- bk-linus/arch/i386/kernel/cpu/intel.c 2003-09-10 20:35:24.000000000 +0100
+++ linux-2.5/arch/i386/kernel/cpu/intel.c 2003-09-24 01:34:29.000000000 +0100
@@ -238,12 +269,9 @@ static void __init init_intel(struct cpu
}
/* SEP CPUID bug: Pentium Pro reports SEP but doesn't have it until model 3 mask 3 */
- if ( c->x86 == 6) {
- unsigned model_mask = (c->x86_model << 8) + c->x86_mask;
- if (model_mask < 0x0303)
- clear_bit(X86_FEATURE_SEP, c->x86_capability);
- }
-
+ if ((c->x86<<8 | c->x86_model<<4 | c->x86_mask) < 0x633)
+ clear_bit(X86_FEATURE_SEP, c->x86_capability);
+
/* Names for the Pentium II/Celeron processors
detectable only by also checking the cache size.
Dixon is NOT a Celeron. */
next reply other threads:[~2003-09-29 17:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-29 17:04 davej [this message]
2003-09-29 17:53 ` [PATCH] Cleanup SEP errata workaround Linus Torvalds
2003-09-29 17:59 ` Dave Jones
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=E1A41Rq-0000N1-00@hardwired \
--to=davej@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=torvalds@osdl.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.