From patchwork Wed Apr 29 20:52:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bhaumik Bhatt X-Patchwork-Id: 11518385 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 931261392 for ; Wed, 29 Apr 2020 20:52:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7B54D214AF for ; Wed, 29 Apr 2020 20:52:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="Dz1vmcCf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727794AbgD2Uwr (ORCPT ); Wed, 29 Apr 2020 16:52:47 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:31163 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727768AbgD2Uwr (ORCPT ); Wed, 29 Apr 2020 16:52:47 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1588193567; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=lCTsgEWMTt3U5oHW/87m59ypKpEeo0ETAuLI4cY6/+c=; b=Dz1vmcCfR0U4etY2/L7qyEXfnscJQnJkxnQ1oQHEKTVekTBCdKcUiQuxBnMZ9mbmeh1jjBN+ VN1p4w4Zdeti+Qo3Y6AlB4vD/n+36Pgelm8weKL5lbUMf60gz2sAL8IjR67nX2jDk0+QRvXb ORLMik21WXlPE/5YSS++qhuu2UM= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5ea9e91b.7f737703ff80-smtp-out-n03; Wed, 29 Apr 2020 20:52:43 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 96DB9C433BA; Wed, 29 Apr 2020 20:52:42 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.0 Received: from bbhatt-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: bbhatt) by smtp.codeaurora.org (Postfix) with ESMTPSA id A32F7C433F2; Wed, 29 Apr 2020 20:52:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org A32F7C433F2 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=bbhatt@codeaurora.org From: Bhaumik Bhatt To: mani@kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, hemantk@codeaurora.org, jhugo@codeaurora.org, Bhaumik Bhatt Subject: [PATCH v3 8/9] bus: mhi: core: Improve debug logs for loading firmware Date: Wed, 29 Apr 2020 13:52:30 -0700 Message-Id: <1588193551-31439-9-git-send-email-bbhatt@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1588193551-31439-1-git-send-email-bbhatt@codeaurora.org> References: <1588193551-31439-1-git-send-email-bbhatt@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add log messages to track boot flow errors and timeouts in SBL or AMSS firmware loading to aid in debug. Signed-off-by: Bhaumik Bhatt Reviewed-by: Jeffrey Hugo --- drivers/bus/mhi/core/boot.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) diff --git a/drivers/bus/mhi/core/boot.c b/drivers/bus/mhi/core/boot.c index 4e49a0e..0bc9c50 100644 --- a/drivers/bus/mhi/core/boot.c +++ b/drivers/bus/mhi/core/boot.c @@ -121,7 +121,8 @@ static int __mhi_download_rddm_in_panic(struct mhi_controller *mhi_cntrl) ee = mhi_get_exec_env(mhi_cntrl); } - dev_dbg(dev, "Waiting for image download completion, current EE: %s\n", + dev_dbg(dev, + "Waiting for RDDM image download via BHIe, current EE:%s\n", TO_MHI_EXEC_STR(ee)); while (retry--) { @@ -152,11 +153,14 @@ static int __mhi_download_rddm_in_panic(struct mhi_controller *mhi_cntrl) int mhi_download_rddm_img(struct mhi_controller *mhi_cntrl, bool in_panic) { void __iomem *base = mhi_cntrl->bhie; + struct device *dev = &mhi_cntrl->mhi_dev->dev; u32 rx_status; if (in_panic) return __mhi_download_rddm_in_panic(mhi_cntrl); + dev_dbg(dev, "Waiting for RDDM image download via BHIe\n"); + /* Wait for the image download to complete */ wait_event_timeout(mhi_cntrl->state_event, mhi_read_reg_field(mhi_cntrl, base, @@ -174,6 +178,7 @@ static int mhi_fw_load_amss(struct mhi_controller *mhi_cntrl, const struct mhi_buf *mhi_buf) { void __iomem *base = mhi_cntrl->bhie; + struct device *dev = &mhi_cntrl->mhi_dev->dev; rwlock_t *pm_lock = &mhi_cntrl->pm_lock; u32 tx_status, sequence_id; int ret; @@ -184,6 +189,7 @@ static int mhi_fw_load_amss(struct mhi_controller *mhi_cntrl, return -EIO; } + dev_dbg(dev, "Starting AMSS download via BHIe\n"); mhi_write_reg(mhi_cntrl, base, BHIE_TXVECADDR_HIGH_OFFS, upper_32_bits(mhi_buf->dma_addr)); @@ -441,7 +447,12 @@ void mhi_fw_load_handler(struct mhi_controller *mhi_cntrl) release_firmware(firmware); /* Error or in EDL mode, we're done */ - if (ret || mhi_cntrl->ee == MHI_EE_EDL) + if (ret) { + dev_err(dev, "MHI did not load SBL, ret:%d\n", ret); + return; + } + + if (mhi_cntrl->ee == MHI_EE_EDL) return; write_lock_irq(&mhi_cntrl->pm_lock); @@ -469,8 +480,10 @@ void mhi_fw_load_handler(struct mhi_controller *mhi_cntrl) if (!mhi_cntrl->fbc_download) return; - if (ret) + if (ret) { + dev_err(dev, "MHI did not enter READY state\n"); goto error_read; + } /* Wait for the SBL event */ ret = wait_event_timeout(mhi_cntrl->state_event, @@ -488,6 +501,8 @@ void mhi_fw_load_handler(struct mhi_controller *mhi_cntrl) ret = mhi_fw_load_amss(mhi_cntrl, /* Vector table is the last entry */ &image_info->mhi_buf[image_info->entries - 1]); + if (ret) + dev_err(dev, "MHI did not load AMSS, ret:%d\n", ret); release_firmware(firmware);