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[XenPPC] copy_4K_page() doesn't use dcbtst?

To: Paul Mackerras <paulus@xxxxxxxxx>
From: Hollis Blanchard <hollisb@xxxxxxxxxx>
Date: Mon, 28 Aug 2006 12:35:23 -0500
Cc: linuxppc-dev <linuxppc-dev@xxxxxxxxxx>, xen-ppc-devel <xen-ppc-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Mon, 28 Aug 2006 10:34:57 -0700
List-id: Xen PPC development <xen-ppc-devel.lists.xensource.com>

Hi Paul, some Xen people were just noticing that copy_4K_page
(arch/powerpc/lib/copypage_64.S) doesn't use the dcbtst instruction. Why
doesn't it help there?

-- 
Hollis Blanchard
IBM Linux Technology Center


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