From: Chris Friesen <cfriesen@nortelnetworks.com>
To: linuxppc-dev@ozlabs.org
Subject: dcbz not used on ppc64?
Date: Mon, 03 Jan 2005 16:54:17 -0600 [thread overview]
Message-ID: <41D9CD19.50207@nortelnetworks.com> (raw)
I ran into some issues with the use of the dcbz instruction in the
kernel for ppc32. I'm now looking at porting our work to ppc64, and
when I looked around a bit, I found that the dcbz instruction doesn't
appear to be used in ppc64.
This leads me to ask:
1) Is it in fact true that ppc64 does not use dcbz in the kernel?
2) If so, why not? Presumably it would be a win in some cases,
otherwise they wouldn't be using it in ppc32. Is there some other
factore in play for ppc64?
Thanks,
Chris
next reply other threads:[~2005-01-03 22:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-03 22:54 Chris Friesen [this message]
2005-01-03 22:58 ` dcbz not used on ppc64? Anton Blanchard
2005-01-03 23:34 ` Chris Friesen
2005-01-04 3:16 ` Anton Blanchard
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