From: Paul Mackerras <paulus@samba.org>
To: Amit Shah <amitshah@gmx.net>
Cc: linuxppc-dev@lists.linuxppc.org
Subject: Re: IBM 750GX SMP on Marvell Discovery II or III?
Date: Tue, 11 May 2004 09:36:16 +1000 [thread overview]
Message-ID: <16544.4592.978105.177882@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <c7nb0l$5e3$1@sea.gmane.org>
Amit Shah writes:
> I was wondering if SMP is supported for the 750 GX processor built on the
> Marvell Discovery boards.
SMP is not supported for 750 processors.
> If not, what's the problem in getting it supported? An older mail by Cort
> Dougan said it was because of TLB invalidate information not being
> broadcasted, but it was a really old mail, has anyone come up with any
> workarounds?
The real killer is that the cache management instructions are not
broadcast. The fact that the TLB invalidations are not broadcast is
painful but it can be worked around in the kernel. In contrast, the
cache management instructions are used in userspace.
Paul.
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2004-05-10 23:36 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-10 7:28 IBM 750GX SMP on Marvell Discovery II or III? Amit Shah
2004-05-10 23:36 ` Paul Mackerras [this message]
2004-05-11 2:09 ` Dan Malek
2004-05-11 3:03 ` Paul Mackerras
2004-05-11 15:46 ` Dan Malek
2004-05-11 17:23 ` Huailin Chen
2004-05-11 17:31 ` Amit Shah
2004-05-11 20:51 ` Huailin Chen
2004-05-12 0:17 ` Paul Mackerras
2004-05-12 0:12 ` Paul Mackerras
2004-05-12 7:57 ` Giuliano Pochini
2004-05-12 8:00 ` Gabriel Paubert
2004-05-12 10:26 ` Benjamin Herrenschmidt
2004-05-12 11:53 ` Gabriel Paubert
2004-05-12 11:46 ` Paul Mackerras
2004-05-12 13:45 ` Gabriel Paubert
2004-05-12 14:21 ` Geert Uytterhoeven
2004-05-12 14:30 ` Amit Shah
2004-05-13 4:30 ` Bryan Rittmeyer
2004-05-14 8:02 ` Geert Uytterhoeven
2004-05-14 9:11 ` Gabriel Paubert
2004-05-11 3:08 ` Huailin Chen
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