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 X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0AA0CC55185 for ; Sat, 25 Apr 2020 23:51:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E498720672 for ; Sat, 25 Apr 2020 23:51:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726295AbgDYXv2 (ORCPT ); Sat, 25 Apr 2020 19:51:28 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:47487 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726117AbgDYXvR (ORCPT ); Sat, 25 Apr 2020 19:51:17 -0400 Received: by ozlabs.org (Postfix, from userid 1034) id 498nql587Wz9sSJ; Sun, 26 Apr 2020 09:51:15 +1000 (AEST) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: 94c0b013c98583614e1ad911e8795ca36da34a85 In-Reply-To: <20200416221908.7886-1-chris.packham@alliedtelesis.co.nz> To: Chris Packham , benh@kernel.crashing.org, christophe.leroy@c-s.fr, tglx@linutronix.de, paulus@samba.org, cai@lca.pw, oss@buserror.net From: Michael Ellerman Cc: Chris Packham , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3] powerpc/setup_64: Set cache-line-size based on cache-block-size Message-Id: <498nql587Wz9sSJ@ozlabs.org> Date: Sun, 26 Apr 2020 09:51:15 +1000 (AEST) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2020-04-16 at 22:19:08 UTC, Chris Packham wrote: > If {i,d}-cache-block-size is set and {i,d}-cache-line-size is not, use > the block-size value for both. Per the devicetree spec cache-line-size > is only needed if it differs from the block size. > > Originally the code would fallback from block size to line size. An > error message was printed if both properties were missing. > > Later the code was refactored to use clearer names and logic but it > inadvertently made line size a required property. This caused the > default values to be used and in turn leads to Power9 systems using the > wrong size. > > Fixes: bd067f83b084 ("powerpc/64: Fix naming of cache block vs. cache lin= > e") > Signed-off-by: Chris Packham Applied to powerpc fixes, thanks. https://git.kernel.org/powerpc/c/94c0b013c98583614e1ad911e8795ca36da34a85 cheers