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Date:      Sat, 01 Feb 2003 11:41:08 -0700
From:      "Justin T. Gibbs" <gibbs@scsiguy.com>
To:        "Alan L. Cox" <alc@imimic.com>
Cc:        cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/i386/i386 identcpu.c initcpu.c locore.s
Message-ID:  <14020000.1044124868@aslan.scsiguy.com>
In-Reply-To: <3E32F7C2.C251040@imimic.com>
References:  <20030125021907.51B482A89E@canning.wemm.org> <3E32F7C2.C251040@imimic.com>

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> Does anyone here know what needs to be done in terms of saving and
> restoring SSE/SSE2 state in order to use non-temporal, i.e., not-cached,
> stores in the idle time page zeroing code?

I don't know if he used SSE/SSE2 or not, but thorpej modified NetBSD's
page zeroing code to avoid touching the cache well over a year ago.
You might look at what they are doing.

--
Justin


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