From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Andrew Morton <akpm@osdl.org>
Cc: Linus Torvalds <torvalds@osdl.org>,
Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: [PATCH] High BAT initialization wrong
Date: Sat, 06 Mar 2004 11:04:51 +1100 [thread overview]
Message-ID: <1078531490.5702.137.camel@gaston> (raw)
Hi !
The code initializing the "high" BATs on CPUs like the 750FX got
broken when copied over from 2.4. This cause random problems with
machines using those CPUs (iBook 2s typically). Please apply this
fix asap. Thanks.
===== arch/ppc/kernel/head.S 1.41 vs edited =====
--- 1.41/arch/ppc/kernel/head.S Tue Feb 17 05:37:14 2004
+++ edited/arch/ppc/kernel/head.S Sat Mar 6 11:03:00 2004
@@ -1492,22 +1492,22 @@
* seems that doesn't affect our ability to actually
* write to these SPRs.
*/
- mtspr SPRN_DBAT4U,r20
- mtspr SPRN_DBAT4L,r20
- mtspr SPRN_DBAT5U,r20
- mtspr SPRN_DBAT5L,r20
- mtspr SPRN_DBAT6U,r20
- mtspr SPRN_DBAT6L,r20
- mtspr SPRN_DBAT7U,r20
- mtspr SPRN_DBAT7L,r20
- mtspr SPRN_IBAT4U,r20
- mtspr SPRN_IBAT4L,r20
- mtspr SPRN_IBAT5U,r20
- mtspr SPRN_IBAT5L,r20
- mtspr SPRN_IBAT6U,r20
- mtspr SPRN_IBAT6L,r20
- mtspr SPRN_IBAT7U,r20
- mtspr SPRN_IBAT7L,r20
+ mtspr SPRN_DBAT4U,r10
+ mtspr SPRN_DBAT4L,r10
+ mtspr SPRN_DBAT5U,r10
+ mtspr SPRN_DBAT5L,r10
+ mtspr SPRN_DBAT6U,r10
+ mtspr SPRN_DBAT6L,r10
+ mtspr SPRN_DBAT7U,r10
+ mtspr SPRN_DBAT7L,r10
+ mtspr SPRN_IBAT4U,r10
+ mtspr SPRN_IBAT4L,r10
+ mtspr SPRN_IBAT5U,r10
+ mtspr SPRN_IBAT5L,r10
+ mtspr SPRN_IBAT6U,r10
+ mtspr SPRN_IBAT6L,r10
+ mtspr SPRN_IBAT7U,r10
+ mtspr SPRN_IBAT7L,r10
END_FTR_SECTION_IFSET(CPU_FTR_HAS_HIGH_BATS)
blr
reply other threads:[~2004-03-06 0:05 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=1078531490.5702.137.camel@gaston \
--to=benh@kernel.crashing.org \
--cc=akpm@osdl.org \
--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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®