From: "Michael S. Zick" <mszick@morethan.org>
To: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Does it lakes some cloberred r1 in
Date: Sun, 23 Apr 2006 12:06:53 -0500 [thread overview]
Message-ID: <200604231206.53217.mszick@morethan.org> (raw)
In-Reply-To: <200604231118.51833.mszick@morethan.org>
On Sun April 23 2006 11:18, Michael S. Zick wrote:
>
> Next question.
>
My bad, that was just plain rude.
The question and the answer:
Multiple processor pa-risc systems with per-processor
caches use a 'cache coherency' trigger.
To trip the trigger (I.E: make the changes observable)
ldcw,co target_address
Where target_address includes the magic byte[0] of
the cache line.
Translation:
Spin on the ldcw,co not the ldw here.
On the systems with 128 byte long cache lines,
ensure these spinlocks are 128 byte aligned not
64 byte aligned as in this dump.
Mike
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next prev parent reply other threads:[~2006-04-23 17:06 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20060422154641.GC10514@quicksilver.road.mcmartin.ca>
2006-04-22 16:48 ` [parisc-linux] Does it lakes some cloberred r1 in John David Anglin
2006-04-23 16:18 ` Michael S. Zick
2006-04-23 17:06 ` Michael S. Zick [this message]
2006-04-24 15:35 ` John David Anglin
2006-04-24 16:25 ` Grant Grundler
2006-04-24 16:50 ` John David Anglin
2006-04-24 18:55 ` John David Anglin
2006-04-25 0:38 ` Grant Grundler
2006-04-26 16:42 ` Michael S. Zick
2006-04-24 16:35 ` Michael S. Zick
2006-04-24 18:00 ` Michael S. Zick
2006-04-24 19:15 ` John David Anglin
2006-04-24 21:57 ` Michael S. Zick
2006-04-24 22:40 ` John David Anglin
2006-04-24 18:46 ` John David Anglin
2006-04-24 19:12 ` Michael S. Zick
2006-04-24 21:07 ` John David Anglin
2006-04-25 15:17 ` Michael S. Zick
2006-04-25 18:52 ` Michael S. Zick
2006-04-25 21:42 ` John David Anglin
[not found] <200604212013.k3LKDAbx003500@hiauly1.hia.nrc.ca>
2006-04-21 20:30 ` John David Anglin
2006-04-20 17:09 [parisc-linux] Does it lakes some cloberred r1 in __put_kernel_asm() 64bit? Carlos O'Donell
2006-04-20 17:28 ` [parisc-linux] Does it lakes some cloberred r1 in John David Anglin
2006-04-20 17:36 ` Michael S. Zick
2006-04-20 19:32 ` John David Anglin
2006-04-20 20:21 ` Michael S. Zick
2006-04-20 20:04 ` Carlos O'Donell
2006-04-20 21:29 ` John David Anglin
2006-04-21 18:52 ` Michael S. Zick
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