From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <benh@kernel.crashing.org>
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 D13A9B6F91
 for <linuxppc-dev@lists.ozlabs.org>; Fri, 11 Nov 2011 15:45:54 +1100 (EST)
Message-ID: <1320986742.21206.52.camel@pasglop>
Subject: Re: [RFC PATCH 08/17] powerpc/e500: Remove conditional "lwsync"
 substitution
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Kumar Gala <galak@kernel.crashing.org>
Date: Fri, 11 Nov 2011 15:45:42 +1100
In-Reply-To: <FCE81732-AD2B-4EF2-BC31-E24D0F9D41A9@kernel.crashing.org>
References: <4E42AB6F.1050900@freescale.com>
 <1320883635-17194-9-git-send-email-Kyle.D.Moffett@boeing.com>
 <3937191C-A735-4668-8E80-9FB4B35E2F63@kernel.crashing.org>
 <20111110163100.GA11983@schlenkerla.am.freescale.net>
 <AC287A9B-0C8B-494E-95CD-A33014AECE22@kernel.crashing.org>
 <20111110170334.GF11983@schlenkerla.am.freescale.net>
 <4567A1A9-51D2-4D21-9080-BD3D78901C1D@boeing.com>
 <FCE81732-AD2B-4EF2-BC31-E24D0F9D41A9@kernel.crashing.org>
Content-Type: text/plain; charset="UTF-8"
Mime-Version: 1.0
Cc: Baruch Siach <baruch@tkos.co.il>, Timur Tabi <B04825@freescale.com>,
 "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
 Paul Gortmaker <paul.gortmaker@windriver.com>,
 Paul Mackerras <paulus@samba.org>, "Moffett,
 Kyle D" <Kyle.D.Moffett@boeing.com>, Scott Wood <scottwood@freescale.com>,
 "linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org>
List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>
List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev>
List-Post: <mailto:linuxppc-dev@lists.ozlabs.org>
List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>
List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>

On Thu, 2011-11-10 at 14:34 -0600, Kumar Gala wrote:

> No idea, we have to ask Ben how much he cares.  I don't see any FSL
> customers pushing us to run the same kernel on A2 and P5020 (or future
> FSL devices).

I do care. For example, imagine somebody wanting to support an
enterprise distro on both BG/Q and some FSL based HW ...

Besides, this has generally forced us to do things more cleanly and I
don't want to go back into #ifdef land. These cores are both arch 2.06 E
compilant, there is no good reason to prevent or forbid having them
build into a single binary image.

Look at the mess ARM got into and the pain they are having getting out
of with that stuff ... No way I'm going backward with split configs. If
anything, I'd like to reconcile things even more.

Cheers,
Ben.