From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id E288BB7B8B for ; Thu, 8 Oct 2009 09:20:55 +1100 (EST) Subject: Re: [PATCH 3/6] 8xx: invalidate non present TLBs From: Benjamin Herrenschmidt To: Joakim Tjernlund In-Reply-To: References: <1254948364-30074-1-git-send-email-Joakim.Tjernlund@transmode.se> <1254948364-30074-2-git-send-email-Joakim.Tjernlund@transmode.se> <1254948364-30074-3-git-send-email-Joakim.Tjernlund@transmode.se> <1254948364-30074-4-git-send-email-Joakim.Tjernlund@transmode.se> <1254950285.2409.10.camel@pasglop> Content-Type: text/plain; charset="UTF-8" Date: Thu, 08 Oct 2009 09:20:46 +1100 Message-Id: <1254954046.2409.15.camel@pasglop> Mime-Version: 1.0 Cc: Scott Wood , "linuxppc-dev@ozlabs.org" , Rex Feany List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Thu, 2009-10-08 at 00:12 +0200, Joakim Tjernlund wrote: > > not sure about the dsisr test here, what is the point ? > > To remove the need to do the same in generic pte code. Then > we only need to do it when it counts. Lets see how it works out. But I'm not sure I trust that DSISR test. Just do it unconditionally... How much does it cost anyway ? Ben.