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=-16.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 5AB4EC47082 for ; Tue, 8 Jun 2021 12:47:41 +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 1F7696108D for ; Tue, 8 Jun 2021 12:47:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1F7696108D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+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.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date:Subject:Cc:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=j+eW9Kva+4AuU3DG5/UniNfIdJS0dEJ1PnsMI45IqPI=; b=eF0S1V1rrxAw3j 32olzCCStcjn4jfitzMKRK2HhlrBKhUPyW+Xr9W/gDjpq9L1gTVt6PXQhd1/X1MGKAYq6G4jn/H5w QhuhqD2AYxp74T4b1y5++d+gsK+7RNoDel2gs29FW7cWHChbpXmT6+PVHa3adpFUmV3TkJ99wc8OT P5Lcb2Yrp6CA2COB0yG6gCiAsw+qC0surpJbqd99nIxzon/HlURg4YctJjgNOVTqO2FwKcLa5YH5H kvoK4PXbtzfps3XLIBeVKKbkTM15nHYzG1YrFu1PBjTUSU4mOzp4Ph1kd+ysut8Yo5KQJv1iM03aM Df1kgMY6qJPGsAdaxcEQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lqb7F-008S0v-HK; Tue, 08 Jun 2021 12:45:58 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lqazO-008OxC-0p for linux-arm-kernel@lists.infradead.org; Tue, 08 Jun 2021 12:37:51 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id C5D8ED6E; Tue, 8 Jun 2021 05:37:48 -0700 (PDT) Received: from lakrids.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id EEDEC3F73D; Tue, 8 Jun 2021 05:37:47 -0700 (PDT) From: Mark Rutland To: linux-arm-kernel@lists.infradead.org Cc: Mark Rutland , Catalin Marinas , Robin Murphy , Will Deacon Subject: [PATCH] arm64: mm: decode xFSC in mem_abort_decode() Date: Tue, 8 Jun 2021 13:37:42 +0100 Message-Id: <20210608123742.11921-1-mark.rutland@arm.com> X-Mailer: git-send-email 2.11.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210608_053750_153207_DD1B80F9 X-CRM114-Status: UNSURE ( 9.50 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org It would be helpful if mem_abort_decode() could decode the DFSC/IFSC, as this can make it easier to identify common bugs (e.g. accesses which trigger alignment faults) without having to manually decode the xFSC value. Decode the xFSC in mem_abort_decode(). Signed-off-by: Mark Rutland Cc: Catalin Marinas Cc: Robin Murphy Cc: Will Deacon --- arch/arm64/mm/fault.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index c10bf749c233..2fba5da62104 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -99,6 +99,8 @@ static void mem_abort_decode(unsigned int esr) pr_alert(" EA = %lu, S1PTW = %lu\n", (esr & ESR_ELx_EA) >> ESR_ELx_EA_SHIFT, (esr & ESR_ELx_S1PTW) >> ESR_ELx_S1PTW_SHIFT); + pr_alert(" FSC = 0x%02x: %s\n", (esr & ESR_ELx_FSC), + esr_to_fault_info(esr)->name); if (esr_is_data_abort(esr)) data_abort_decode(esr); -- 2.11.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel