Subject: Re: problem with cache flush routine for G5?
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Tom Rini <trini@kernel.crashing.org>
Cc: Chris Friesen <cfriesen@nortelnetworks.com>,
       Linux Kernel list <linux-kernel@vger.kernel.org>
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	 <1078444268.5698.27.camel@gaston>
	 <20040304235754.GK26065@smtp.west.cox.net>
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Date: Fri, 05 Mar 2004 11:04:26 +1100
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> 
> ... unless this is a 'G5' that's not in a pmac, it's not my code, and
> the openfirmware bootloaders don't, IIRC, do any cache stuff.

Heh, well, they should. You need to flush the dcache & invalidate the
icache over the kernel image after decompressing it. It's just that
those routines are totally broken as far as I can see, but I don't
think the pmac bootloaders will use them, they probably use a
different implementation that works.

Note that whatever machines are using those routines will probably
have trouble too anyway

Ben.


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