From patchwork Wed Dec 2 08:24:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Can Guo X-Patchwork-Id: 11945113 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 6CDA4C8301D for ; Wed, 2 Dec 2020 08:28:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 37C9A2223F for ; Wed, 2 Dec 2020 08:28:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729130AbgLBI2L (ORCPT ); Wed, 2 Dec 2020 03:28:11 -0500 Received: from labrats.qualcomm.com ([199.106.110.90]:22598 "EHLO labrats.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729039AbgLBI2K (ORCPT ); Wed, 2 Dec 2020 03:28:10 -0500 IronPort-SDR: QaNLU5nCxCuAwcOOnijYGFPXP7xP0o3eowhCEhFJPhcAorTTOCTyFI2izM8Vp0/cSIzYAdfZmy bj/0p+X8aRaNQso9/w6LmwYDYMoYf+hY4ruGMuTEdW/i4dTFJtoZ8MquzxVY4lfX2vvzvHPF6M cllL42jEllHIOMCO6Ryacbs4dFBdshJeXP6IBFrJqylBtRuYe12K2cIbilUWY0tKjmmYjiBsQw lqtouY+0i0U8wOa9nZeQT/BXD581PenlpOHD4X8KmReQ2UP0CotNKrcFVJQUv5qNvzDi74ID5g wz4= X-IronPort-AV: E=Sophos;i="5.78,386,1599548400"; d="scan'208";a="47539711" Received: from unknown (HELO ironmsg05-sd.qualcomm.com) ([10.53.140.145]) by labrats.qualcomm.com with ESMTP; 02 Dec 2020 00:27:07 -0800 X-QCInternal: smtphost Received: from wsp769891wss.qualcomm.com (HELO stor-presley.qualcomm.com) ([192.168.140.85]) by ironmsg05-sd.qualcomm.com with ESMTP; 02 Dec 2020 00:27:05 -0800 Received: by stor-presley.qualcomm.com (Postfix, from userid 359480) id 248E22107E; Wed, 2 Dec 2020 00:27:06 -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 Cc: Alim Akhtar , Avri Altman , "James E.J. Bottomley" , "Martin K. Petersen" , Stanley Chu , Bean Huo , Bart Van Assche , linux-kernel@vger.kernel.org (open list) Subject: [PATCH V5 3/3] scsi: ufs: Print host regs in IRQ handler when AH8 error happens Date: Wed, 2 Dec 2020 00:24:34 -0800 Message-Id: <1606897475-16907-4-git-send-email-cang@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1606897475-16907-1-git-send-email-cang@codeaurora.org> References: <1606897475-16907-1-git-send-email-cang@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.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: Bao D. Nguyen Reviewed-by: Asutosh Das Reviewed-by: Hongwu Su Signed-off-by: Can Guo Reviewed-by: Stanley Chu --- 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 fa90e15..94405e4 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -6057,7 +6057,8 @@ 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",