From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <3E81C5AA.80206@embeddededge.com>
Date: Wed, 26 Mar 2003 10:22:18 -0500
From: Dan Malek <dan@embeddededge.com>
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To: joakim.tjernlund@lumentis.se
Cc: Tom Rini <trini@kernel.crashing.org>,
	"Linuxppc-Embedded@Lists. Linuxppc.  Org" <linuxppc-embedded@lists.linuxppc.org>,
	strauman@SLAC.Stanford.EDU
Subject: Re: dcbz works on 862 everywhere!
References: <IGEFJKJNHJDCBKALBJLLAEHCFLAA.joakim.tjernlund@lumentis.se>
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Joakim Tjernlund wrote:

> I am still intrested in trying copy-on-write but I can't figure out
> how. Is it a big job? Any pointers?

The 8xx properly implements copy-on-write now.  I don't remember when
I updated this, maybe somewhere in the mid 2.3.xxx timeframe.  All of
the processor specific MM functions have to be changed, it isn't
something that is likely going to be a configuration option. due to
all of the common #define, macros, and page table functions.  It
does remove three instructions and a branch from the TLBmiss handler :-)


	-- Dan


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