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 5D690C4332F for ; Mon, 17 Oct 2022 00:43:51 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4MrJC94pJpz3bj8 for ; Mon, 17 Oct 2022 11:43:49 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=myUXAcEn; dkim-atps=neutral Received: from gandalf.ozlabs.org (mail.ozlabs.org [IPv6:2404:9400:2221:ea00::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4MrJB71Smxz2xb4 for ; Mon, 17 Oct 2022 11:42:55 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=myUXAcEn; dkim-atps=neutral Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4MrJB706b6z4x1G; Mon, 17 Oct 2022 11:42:54 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ellerman.id.au; s=201909; t=1665967375; bh=N23Jut8Z5LGdpnJdMvqJqMrXe+KgoU+mIuEegke+ihw=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=myUXAcEnbsz1sj2bOG1/Cbkj0CPz8Ezwx/4pZOWzwHb6GhSY1Vf1FpwEAFuJdEtEh oOEToC0cmcBV4NUg7HAojIMmDIHeJiWPzWbxvvdDSP9aLFn/nEIdHHcjQuAB937aL8 s3laOGqVIUPhovd3dF4qsCdlc9OgB0N7N6f3PT2HJGeloRFp8/In1DVbNeRodexAOr qJJs4cxO4A1a/RnxOaokehqqOyu3Fwma+MkjZ5dD7Npl43+2d76dV1ViAsOul7NWSm r8X/fZtnai7LHcegwFd4v38hASwyujlgNYxLUAH3YqpWCpArnhlvMu2j9frdlm9ABZ fI37UZd11Pc0w== From: Michael Ellerman To: Christian Zigotzky , Segher Boessenkool Subject: Re: Issues with the first PowerPC updates for the kernel 6.1 In-Reply-To: References: <20221016164654.GH25951@gate.crashing.org> Date: Mon, 17 Oct 2022 11:42:54 +1100 Message-ID: <87y1tfl1pt.fsf@mpe.ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable 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: Darren Stevens , Andrew Donnellan , npiggin@gmail.com, rmclure@linux.ibm.com, mad skateman , Olof Johansson , linuxppc-dev , Trevor Dickinson , Christian Zigotzky Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Christian Zigotzky writes: > No, it=E2=80=99s not fine. We used the POWER4 CPU config before. We dropped POWER4 support in 2018. The recent commit just updated the help text to match reality. There were some changes to the CPU flags, but if anything they should have made things more likely to work properly on old CPUs. Previously BIG_ENDIAN && GENERIC_CPU would use -mcpu=3Dpower5, now it uses -mcpu=3Dpower4. cheers >> On 16. Oct 2022, at 18:51, Segher Boessenkool wrote: >>=20 >> =EF=BB=BFOn Fri, Oct 14, 2022 at 06:11:21PM +0200, Christian Zigotzky wr= ote: >>> make oldconfig has asked because of the CPU family. I choosed GENERIC f= or my P.A. Semi PWRficient PA6T-1682M. Is this correct? Maybe this is the p= roblem. >>>=20 >>> config GENERIC_CPU >>> - bool "Generic (POWER4 and above)" >>> + bool "Generic (POWER5 and PowerPC 970 and above)" >>> depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN >>> select PPC_64S_HASH_MMU >>>=20 >>> There isn=E2=80=99t a POWER4 anymore and I used it via CONFIG_GENERIC_C= PU=3Dy before. >>=20 >> PA6T is ISA 2.04, just like POWER5+. It should be fine. >>=20 >>=20 >> Segher