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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT 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 CA652C433F5 for ; Mon, 13 Sep 2021 13:56:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B5B1F60FC0 for ; Mon, 13 Sep 2021 13:56:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245153AbhIMN5v (ORCPT ); Mon, 13 Sep 2021 09:57:51 -0400 Received: from mail.kernel.org ([198.145.29.99]:36596 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343608AbhIMNzr (ORCPT ); Mon, 13 Sep 2021 09:55:47 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id AC2A961881; Mon, 13 Sep 2021 13:35:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1631540153; bh=M9TyqKf147UjgYaUzTNPsRL9EOOPe/XQokuRChA1r5A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fv0FGPXjMw7JzWMbUFRlGN5R5S4pgHM1YrzRDsQOoMn11uOxoHn1LbCsGXJfNUd5L ZS0A5cIcMr6mmF8q5oQR5WaXrQ8d136vssDFv6Djav/886VDOcEpO+CZDBs2P442fb QXvQ73CFeF8GF7MeQSbplMxuWUk2CePX9yafYD9g= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, kernel test robot , Arnd Bergmann , Geert Uytterhoeven , Sasha Levin Subject: [PATCH 5.13 056/300] m68k: Fix invalid RMW_INSNS on CPUs that lack CAS Date: Mon, 13 Sep 2021 15:11:57 +0200 Message-Id: <20210913131111.249870408@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210913131109.253835823@linuxfoundation.org> References: <20210913131109.253835823@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Geert Uytterhoeven [ Upstream commit 2189e928b62e91d8efbc9826ae7c0968f0d55790 ] When enabling CONFIG_RMW_INSNS in e.g. a Coldfire build: {standard input}:3068: Error: invalid instruction for this architecture; needs 68020 or higher (68020 [68k, 68ec020], 68030 [68ec030], 68040 [68ec040], 68060 [68ec060]) -- statement `casl %d4,%d0,(%a6)' ignored Fix this by (a) adding a new config symbol to track if support for any CPU that lacks the CAS instruction is enabled, and (b) making CONFIG_RMW_INSNS depend on the new symbol not being set. Fixes: 0e152d80507b75c0 ("m68k: reorganize Kconfig options to improve mmu/non-mmu selections") Reported-by: kernel test robot Reported-by: Arnd Bergmann Signed-off-by: Geert Uytterhoeven Acked-by: Arnd Bergmann Link: https://lore.kernel.org/r/20210725104413.318932-1-geert@linux-m68k.org Signed-off-by: Sasha Levin --- arch/m68k/Kconfig.cpu | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu index f4d23977d2a5..1127d64b6c1d 100644 --- a/arch/m68k/Kconfig.cpu +++ b/arch/m68k/Kconfig.cpu @@ -26,6 +26,7 @@ config COLDFIRE bool "Coldfire CPU family support" select ARCH_HAVE_CUSTOM_GPIO_H select CPU_HAS_NO_BITFIELDS + select CPU_HAS_NO_CAS select CPU_HAS_NO_MULDIV64 select GENERIC_CSUM select GPIOLIB @@ -39,6 +40,7 @@ config M68000 bool depends on !MMU select CPU_HAS_NO_BITFIELDS + select CPU_HAS_NO_CAS select CPU_HAS_NO_MULDIV64 select CPU_HAS_NO_UNALIGNED select GENERIC_CSUM @@ -54,6 +56,7 @@ config M68000 config MCPU32 bool select CPU_HAS_NO_BITFIELDS + select CPU_HAS_NO_CAS select CPU_HAS_NO_UNALIGNED select CPU_NO_EFFICIENT_FFS help @@ -383,7 +386,7 @@ config ADVANCED config RMW_INSNS bool "Use read-modify-write instructions" - depends on ADVANCED + depends on ADVANCED && !CPU_HAS_NO_CAS help This allows to use certain instructions that work with indivisible read-modify-write bus cycles. While this is faster than the @@ -459,6 +462,9 @@ config NODES_SHIFT config CPU_HAS_NO_BITFIELDS bool +config CPU_HAS_NO_CAS + bool + config CPU_HAS_NO_MULDIV64 bool -- 2.30.2