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From: Johannes Stezenbach <js@convergence.de>
To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Cc: "Kevin D. Kissell" <kevink@mips.com>, linux-mips@linux-mips.org
Subject: Re: Once again: test_and_set for CPUs w/o LL/SC
Date: Tue, 15 Oct 2002 18:50:39 +0200	[thread overview]
Message-ID: <20021015165039.GC21220@convergence.de> (raw)
In-Reply-To: <Pine.GSO.3.96.1021015171049.16503A-100000@delta.ds2.pg.gda.pl>

On Tue, Oct 15, 2002 at 05:17:24PM +0200, Maciej W. Rozycki wrote:
> On Mon, 7 Oct 2002, Kevin D. Kissell wrote:
> 
> > That's probably going to be a more reliable design,
> > though I would still consider leaving the TLB refill handler
> > untouched and counting on the fact that k1 must contain
> > a non-lethal EntryLo value on return from the exception.
> 
>  Well, there is a "nop" just before the "eret" in all R4k-style TLB
> exception handlers.  I see no problem to use the slot for explicit
> clobbering of k0 or k1 with a single instruction like "li" or "lui". 

Now that you say it it's pretty obvious...

Thanks,
Johannes

      reply	other threads:[~2002-10-15 16:50 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-09-16 16:40 Once again: test_and_set for CPUs w/o LL/SC Johannes Stezenbach
2002-10-07 14:47 ` Johannes Stezenbach
2002-10-07 16:21   ` Kevin D. Kissell
2002-10-07 16:21     ` Kevin D. Kissell
2002-10-07 18:43     ` Johannes Stezenbach
2002-10-07 18:51       ` Daniel Jacobowitz
2002-10-15 17:52         ` Johannes Stezenbach
2002-10-08  7:38       ` Kevin D. Kissell
2002-10-08  7:38         ` Kevin D. Kissell
2002-10-15 15:36       ` Maciej W. Rozycki
2002-10-15 17:21         ` Johannes Stezenbach
2002-10-16 12:20           ` Maciej W. Rozycki
2002-10-16 12:52             ` Johannes Stezenbach
2002-10-16 16:30               ` Johannes Stezenbach
2002-10-17  9:47                 ` Gleb O. Raiko
2002-10-17 12:02                   ` Maciej W. Rozycki
2002-10-17 13:11                     ` Johannes Stezenbach
2002-10-17 13:32                       ` Gleb O. Raiko
2002-10-17 14:13                         ` Johannes Stezenbach
2002-10-16 18:11         ` Johannes Stezenbach
2002-10-16 18:23           ` Johannes Stezenbach
2002-10-17 11:57           ` Maciej W. Rozycki
2002-10-17 13:25             ` Johannes Stezenbach
2002-10-15 15:17     ` Maciej W. Rozycki
2002-10-15 16:50       ` Johannes Stezenbach [this message]

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