From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ixro-ex1.ixiacom.com (unknown [212.146.94.66]) by ozlabs.org (Postfix) with ESMTP id 7A51EDE5E9 for ; Wed, 7 Jan 2009 23:22:32 +1100 (EST) From: Octavian Purdila To: Benjamin Herrenschmidt Subject: Re: [PATCH 0/2] oprofile support for ppc750 Date: Wed, 7 Jan 2009 14:17:11 +0200 References: <1231246535-13151-1-git-send-email-opurdila@ixiacom.com> <1231296754.14860.51.camel@pasglop> In-Reply-To: <1231296754.14860.51.camel@pasglop> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Message-Id: <200901071417.11745.opurdila@ixiacom.com> Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , =46rom: Benjamin Herrenschmidt > On Tue, 2009-01-06 at 14:55 +0200, Octavian Purdila wrote: > > Adds oprofile support for ppc750. ppc750 performance counters > > interface is similar with G4, but it only has 4 performance counters > > instead of 6. > > > > I tested this on a PPC750GX and it seems to work fine. > > I'm not too sure about using the same model as 74xx...=20 I've double checked the bits, and it looks to me that what is implemented i= n=20 op_model_7450.c maps with my User=E2=80=99s Manual IBM PowerPC 750GX and 75= 0GL RISC=20 Microprocessor copy :) > I have some > patches that haven't been released yet from Jack Miller to implement the > full OP support for 750 but they appear to cause crashes. > Were they posted somewhere? > There is a known HW bug in various 750's that basically make the > performance interrupt unuseable. I -think- it may have been fixed in the > very latest revision of the 750CL though but I'm not sure. Yeah, I've read that somewhere, but I did not notice any issues with 750GX = I=20 am using - so far. Thanks, tavi