From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from colo.lackof.org (colo.lackof.org [198.49.126.79]) by dsl2.external.hp.com (Postfix) with ESMTP id 7ECA94841 for ; Sun, 12 Oct 2003 22:14:50 -0600 (MDT) Date: Sun, 12 Oct 2003 22:14:48 -0600 From: Grant Grundler To: Joel Soete Cc: parisc-linux@parisc-linux.org Subject: Re: [parisc-linux] flush_tlb_all_local: Message-ID: <20031013041448.GD2467@colo.lackof.org> References: <3F897C56.800@tiscali.be> <20031013031258.GC2467@colo.lackof.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20031013031258.GC2467@colo.lackof.org> Sender: parisc-linux-admin@lists.parisc-linux.org Errors-To: parisc-linux-admin@lists.parisc-linux.org List-Help: List-Post: List-Subscribe: , List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: On Sun, Oct 12, 2003 at 09:12:58PM -0600, Grant Grundler wrote: > On Sun, Oct 12, 2003 at 04:07:50PM +0000, Joel Soete wrote: > > Why twice 'mtctl %r0, %cr17'? > > Good question. No clue. Looks like a brain fart since clearing it > once should work unless there's a weird bug. I'll remove it. definitely not a brainfart. Read PA2.0 arch book (section 2) where it talks about cr17/cr18. CR17 is two registers and writing it twice clear both head/tail of the IIAS. Just like cr18 is also written twice. sorry for not catching that the first time around. grant