From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Benjamin Herrenschmidt To: Becky Bruce In-Reply-To: <00eecfdbd5bccc7b293d847033121eee@freescale.com> References: <1132032910.23979.6.camel@gaston> <00eecfdbd5bccc7b293d847033121eee@freescale.com> Content-Type: text/plain Date: Wed, 16 Nov 2005 13:34:49 +1100 Message-Id: <1132108490.5646.67.camel@gaston> Mime-Version: 1.0 Cc: linuxppc64-dev , linuxppc-dev list Subject: Re: [PATCH] powerpc: Merge align.c List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, 2005-11-15 at 20:19 -0600, Becky Bruce wrote: > Ben, > > Yeah, I clearly shouldn't run testcases at 11pm, because I got in a > rush and only confirmed that lmw/stmw were actually taking the > exception. Those 2 are working beautifully. To test the others, I > need to run on a different board which, of course, isn't bootable at > the moment. As soon as I can get that up and running, I'll try some of > the other cases and let you know how it goes...... > > BTW, Based on the pile of docs I have here, I think the list of > alignment-exception-causing events on FSL's current parts (603, 603e, > 750, 74x, 74xx, e500) is: > > - lmw/stmw (all procs, non-word aligned) > - single and double precision floating point ld/st ops (non-E500, non > data size aligned) > - dcbz to WT or CI memory (all procs) > - dcbz with cache disabled (all procs but 603e?) > - misaligned little endian accesses (603e) > - lwarx/stwcx (all procs) > - multiple/string with LE set (750, 603e, 7450, 7400) > - eciwx/ecowx (750, 7450, 7400) > - a couple of others related to vector processing > > If anybody knows offhand of something missing there, let me know. What about lwz/stw cropssing page boundaries ? Is this handled in HW ? Ben.