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=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no 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 031B5C31E40 for ; Tue, 6 Aug 2019 12:33:36 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CB8502070D for ; Tue, 6 Aug 2019 12:33:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="e1n5xn9C" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CB8502070D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:In-Reply-To: Date:References:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=cWkkbLBhTjJBDYRIhJxNLRJDNfj0dds9S8mh3TLMplU=; b=e1n5xn9CcGdg9P N1fjTZi4nENDaJa1pA+Lc/nP6S+6gSXOrqLNXnRJcQiuT8B5lPtA4e+RvcsUE94xgUkcC0PTrxT9Q n02o4UG+8ZJAZL7+nEDLBP9MLvlrEG3SoOf5YXX0jEp2+5YI2jgZ/RpWJNZONMGao4h1/LNQ7qmmA z3GtKKR/RrMBrFxtCTm/8S3wHiVMrD/mcBHELc29Ktk3EZr2L2aT38iVKPtOPJAleKcAVgTDom7xX rRelFbeaIe7lMh0fxEml1YvUyNFbOSTQrRcr7p7xGL2kv9K8P7mRaijMA+mpOpItlDG9C4uhwaUW3 gtj0coZf2GiU+lxma4gw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1huyee-0002Ae-AO; Tue, 06 Aug 2019 12:33:28 +0000 Received: from mx2.suse.de ([195.135.220.15] helo=mx1.suse.de) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1huyea-0002AF-Kn for linux-arm-kernel@lists.infradead.org; Tue, 06 Aug 2019 12:33:26 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id C383CB05E; Tue, 6 Aug 2019 12:33:22 +0000 (UTC) From: Andreas Schwab To: Robin Murphy Subject: Re: 5.2: arm-smmu e0600000.smmu: Unexpected global fault, this could be serious References: <5036fcb8-131e-9ffe-4bfe-dc8cbae71bc4@arm.com> X-Yow: Then, it's off to RED CHINA!! Date: Tue, 06 Aug 2019 14:33:22 +0200 In-Reply-To: <5036fcb8-131e-9ffe-4bfe-dc8cbae71bc4@arm.com> (Robin Murphy's message of "Tue, 6 Aug 2019 13:17:12 +0100") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.2.90 (gnu/linux) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190806_053324_826899_C7E2852F X-CRM114-Status: GOOD ( 12.23 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Aug 06 2019, Robin Murphy wrote: > I take it you have firmware still using the old "mmu-masters" DT binding > on that machine? Yes. > The way the legacy binding is handled turns out to interact badly with the > disable_bypass option, so CONFIG_ARM_SMMU_DISABLE_BYPASS_BY_DEFAULT is > presumably now tripping you up. The immediate workaround would be to turn > that off and/or boot with "arm-smmu.disable_bypass=0" to ensure it's > overridden. I will try the command line parameter. > If you can update the firmware to something newer using either > the generic "iommus" binding or ACPI (I believe Seattle is supported in > EDK2 these days) that would remove the problem entirely. AMD won't be releasing any new firmware for their seattle platform. Andreas. -- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different." _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel