Received: by 2002:a25:c593:0:0:0:0:0 with SMTP id v141csp63967ybe; Sun, 1 Sep 2019 20:31:57 -0700 (PDT) X-Google-Smtp-Source: APXvYqwSj+VinuNq03eaA84T46nmfwneSjT7+X1hUpkMxcXlqSMkO+N5xjbxiBu7iRWHbQScfTTL X-Received: by 2002:a62:2603:: with SMTP id m3mr33110916pfm.163.1567395117296; Sun, 01 Sep 2019 20:31:57 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1567395117; cv=none; d=google.com; s=arc-20160816; b=AtNTa5GaVsaFq9ZUerKuxa7LVDXTy9BA5XpGYjpADImLFv1JpA2qpFbvFfDO3XYBC+ N/gXD83g0qOXA/6Oi5vgi6bPZs7mJZYhV27bFkbN2enXtZSc0/TPIPvyAimx8fQ02H4e f20TgAojAF0Jj83NeOJf4Yqb/OuBP9PZoFKfwfHpNa9UGu+R5iI+QTtuK6Q6HZI70huh 0suCE7qTTq2LdSL7ilvJ0hUJ148FFFMuM/IpuhcYWVSMGkL7y2Lbph9087TeuxQ64E8v fjta2n7aFP1zv69ybPg0+ejSkeITTsmCJMiFwD3NaHJlA/idn3eNRIq768r3+lewK+Ej p79A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:date:message-id:subject:cc:from:to :in-reply-to; bh=G+XIr0p6iTSoHTmmoT4phbluQH/jFB1Gp7gvALM3XY4=; b=YEnISLViRLTbsxPGSKd0k+Sk5q3ahM86WL7elYUqzTOPwMJjdKOT4ABYNwgxF/DXqB bopU2pXbsrPlnJSrXRcaWP23bFkUF6ef87EepyN+u6o8EaOM6YtGunqMhFU3nrkrp7xa 3ltbW/mVc3wmt+r1+z00LhHX+vVi85x6HvCvIBMLHu5yCzglyoKcn36OiN3sw05YsC5g eHFQu4tsdPBjEJJZ67A/bXiF8pKzjtiNbditSYt2KIaTDCvrlM2BRi8+0Jl828Fublo0 UzO9mkMqbEd8LbvMqEnkPIjij8wZjQ2ECUcRHbskuy1ySgVsCYjYPprNUFM6m9nISj4c iSww== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id x18si12555551pff.208.2019.09.01.20.31.42; Sun, 01 Sep 2019 20:31:57 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729432AbfIBD3l (ORCPT + 99 others); Sun, 1 Sep 2019 23:29:41 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:57283 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728926AbfIBD3j (ORCPT ); Sun, 1 Sep 2019 23:29:39 -0400 Received: by ozlabs.org (Postfix, from userid 1034) id 46MFv46j2Qz9sPJ; Mon, 2 Sep 2019 13:29:36 +1000 (AEST) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: f7a0bf7d904e902e13024986b7b357181ee30849 In-Reply-To: To: Christophe Leroy , Benjamin Herrenschmidt , Paul Mackerras From: Michael Ellerman Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/6] powerpc/32s: add an option to exclusively select powerpc 601 Message-Id: <46MFv46j2Qz9sPJ@ozlabs.org> Date: Mon, 2 Sep 2019 13:29:36 +1000 (AEST) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2019-08-26 at 15:52:13 UTC, Christophe Leroy wrote: > Powerpc 601 is rather old powerpc which as some important > limitations compared to other book3s/32 powerpcs: > - No Timebase. > - Common BATs for instruction and data. > - No execution protection in segment registers. > - No RI bit in MSR > - ... > > It is starting to be difficult and cumbersome to maintain > kernels that are compatible both with 601 and other 6xx cores. > > Create a compiletime option to exclusively select either powerpc 601 > or other 6xx. > > Signed-off-by: Christophe Leroy Series applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/f7a0bf7d904e902e13024986b7b357181ee30849 cheers