From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 205D7ECAAD8 for ; Wed, 21 Sep 2022 19:06:18 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4MXnvD2YlVz3bqv for ; Thu, 22 Sep 2022 05:06:16 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.crashing.org (client-ip=63.228.1.57; helo=gate.crashing.org; envelope-from=segher@kernel.crashing.org; receiver=) Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) by lists.ozlabs.org (Postfix) with ESMTP id 4MXntn1HmHz30KY for ; Thu, 22 Sep 2022 05:05:52 +1000 (AEST) Received: from gate.crashing.org (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.14.1) with ESMTP id 28LJ3oap025783; Wed, 21 Sep 2022 14:03:50 -0500 Received: (from segher@localhost) by gate.crashing.org (8.14.1/8.14.1/Submit) id 28LJ3oNq025782; Wed, 21 Sep 2022 14:03:50 -0500 X-Authentication-Warning: gate.crashing.org: segher set sender to segher@kernel.crashing.org using -f Date: Wed, 21 Sep 2022 14:03:50 -0500 From: Segher Boessenkool To: Nicholas Piggin Subject: Re: [PATCH 2/2] powerpc/64s: update cpu selection options Message-ID: <20220921190350.GF25951@gate.crashing.org> References: <20220921014103.587954-1-npiggin@gmail.com> <20220921014103.587954-2-npiggin@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220921014103.587954-2-npiggin@gmail.com> User-Agent: Mutt/1.4.2.3i X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Wed, Sep 21, 2022 at 11:41:03AM +1000, Nicholas Piggin wrote: > Update the 64s GENERIC_CPU option. POWER4 support has been dropped, so > make that clear in the option name. The POWER5_CPU option is dropped > because it's uncommon, and GENERIC_CPU covers it. > > -mtune= before power8 is dropped because the minimum gcc version > supports power8, and tuning is made consistent between big and little > endian. > > A 970 option is added for PowerPC 970 / G5 because they still have a > user base, and -mtune=power8 does not generate good code for the 970. > > This also updates the ISA versions document to add Power4/Power4+ > because I didn't realise Power4+ used 2.01. > > Signed-off-by: Nicholas Piggin Reviewed-by: Segher Boessenkool Cheers, Segher