From patchwork Wed Dec 2 12:04:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Can Guo X-Patchwork-Id: 11945825 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=-18.2 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 A219AC64E8A for ; Wed, 2 Dec 2020 12:05:35 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 1052622203 for ; Wed, 2 Dec 2020 12:05:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1052622203 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org 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=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:MIME-Version:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:References:In-Reply-To:Message-Id:Date: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=I+O/ZeRp+Znxf/56DHlq0r142yfrbMCegq4+r9KgD/A=; b=AhDo44n0m9+BGYLwwO6JTT9UK6 Qy5HKuAeSG6+8SPb8YkoTGP93Ixig8DohDkLPhOVSnOfs+QYk+iyvpx28zTjW86efLpkK/fhqc/iW k6HU/o6jeS5BA4RcY3ePZSpL5/Uk+C/H2QuM65n3+swwrMAvUwUzMQuTgfMFcFZK0QkAsFfTLFu9m GBuoEaDsA4FCMOsG5DmJjBXt/evjPFrPRlXfRund7G4eQXBIXtym8ciBNbwnaUgbPxFtLzh/cbQcj fnP4yhovMkm7/GIvOInqNT1kl8FroxyK7VIFuWUtSNXPIMVuGBVrwSIbJ8z8tF/sNPtdKlgN+FFud Yv14A7ow==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kkQrw-0000iJ-12; Wed, 02 Dec 2020 12:04:24 +0000 Received: from labrats.qualcomm.com ([199.106.110.90]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kkQrr-0000gU-NA; Wed, 02 Dec 2020 12:04:20 +0000 IronPort-SDR: g9jAffxBAYy8vjgsNRxjoVmXcn5jzUqBIOPo+H+d7pjKM2N0MQAF2P1J+MMaQ/geTBFjFRX5N9 rK3I9UUZsXvLNovXuvQHgp/Izv6AO8JuuKNSyyYANy1cb44xHKhqe9W6DBfOwQOTkLRGCh4J51 qdiZvDUvYqfghv6zpkCMouOtSMX/g3+jsUm77ag86NmDJ2G2+cfOHcl3nqngSzCG/yWWL7bzJT Qy8fgXj3ciDGjyrW4/ehRsFpDhCam+ijFEVM8YE/2TD8ybE9S4Emsm3of/3rKgdYoKNX9Zy4m+ E/w= X-IronPort-AV: E=Sophos;i="5.78,386,1599548400"; d="scan'208";a="47540559" Received: from unknown (HELO ironmsg03-sd.qualcomm.com) ([10.53.140.143]) by labrats.qualcomm.com with ESMTP; 02 Dec 2020 04:04:18 -0800 X-QCInternal: smtphost Received: from stor-presley.qualcomm.com ([192.168.140.85]) by ironmsg03-sd.qualcomm.com with ESMTP; 02 Dec 2020 04:04:18 -0800 Received: by stor-presley.qualcomm.com (Postfix, from userid 359480) id F3E5F2106D; Wed, 2 Dec 2020 04:04:17 -0800 (PST) From: Can Guo To: asutoshd@codeaurora.org, nguyenb@codeaurora.org, hongwus@codeaurora.org, rnayak@codeaurora.org, linux-scsi@vger.kernel.org, kernel-team@android.com, saravanak@google.com, salyzyn@google.com, cang@codeaurora.org Subject: [PATCH V7 3/3] scsi: ufs: Print host regs in IRQ handler when AH8 error happens Date: Wed, 2 Dec 2020 04:04:03 -0800 Message-Id: <1606910644-21185-4-git-send-email-cang@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1606910644-21185-1-git-send-email-cang@codeaurora.org> References: <1606910644-21185-1-git-send-email-cang@codeaurora.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201202_070419_994076_89F02AF6 X-CRM114-Status: GOOD ( 10.31 ) 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: Bart Van Assche , "Martin K. Petersen" , "James E.J. Bottomley" , open list , Avri Altman , "moderated list:ARM/Mediatek SoC support" , Alim Akhtar , Matthias Brugger , Stanley Chu , "moderated list:ARM/Mediatek SoC support" , Bean Huo MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org When AH8 error happens, all the regs and states are dumped in err handler. Sometime we need to look into host regs right after AH8 error happens, which is before leaving the IRQ handler. Reviewed-by: Stanley Chu Reviewed-by: Bao D. Nguyen Reviewed-by: Asutosh Das Reviewed-by: Hongwu Su Signed-off-by: Can Guo --- drivers/scsi/ufs/ufshcd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 26c1fa0..4561601 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -6060,7 +6060,8 @@ static irqreturn_t ufshcd_check_errors(struct ufs_hba *hba) hba->saved_uic_err |= hba->uic_error; /* dump controller state before resetting */ - if ((hba->saved_err & (INT_FATAL_ERRORS)) || + if ((hba->saved_err & + (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK)) || (hba->saved_uic_err && (hba->saved_uic_err != UFSHCD_UIC_PA_GENERIC_ERROR))) { dev_err(hba->dev, "%s: saved_err 0x%x saved_uic_err 0x%x\n",