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=-9.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 E8F2FC3F2CE for ; Wed, 4 Mar 2020 19:48:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BECB02166E for ; Wed, 4 Mar 2020 19:48:09 +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="clD1xlCu" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730022AbgCDTsI (ORCPT ); Wed, 4 Mar 2020 14:48:08 -0500 Received: from mail27.static.mailgun.info ([104.130.122.27]:25473 "EHLO mail27.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729093AbgCDTsH (ORCPT ); Wed, 4 Mar 2020 14:48:07 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1583351286; h=Content-Transfer-Encoding: MIME-Version: References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=fq51DeGJ3Z3tN3afJtV3Ja5oRakP0D/eaYT2hqFUj/k=; b=clD1xlCumUIDvaV4RIgG+4/Kbyq3tYXa1BZKb1kTBLRm7K9eEhwT8pyDlXYMucYms8P2o0nf qoWH8H3UETeej39V1OXfCKBUIVZOoL6IYcjd5rmTMCltHQburF+UWJVokzrQtqRo72DzILVq HZlmUFDGX17YJCNXcDkgO/T3470= X-Mailgun-Sending-Ip: 104.130.122.27 X-Mailgun-Sid: WyI0MWYwYSIsICJsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd 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 5e6005eb.7f08f190b148-smtp-out-n01; Wed, 04 Mar 2020 19:47:55 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id D36EFC447A2; Wed, 4 Mar 2020 19:47:55 +0000 (UTC) Received: from blr-ubuntu-87.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: sibis) by smtp.codeaurora.org (Postfix) with ESMTPSA id E622FC4479D; Wed, 4 Mar 2020 19:47:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org E622FC4479D 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=sibis@codeaurora.org From: Sibi Sankar To: bjorn.andersson@linaro.org, mathieu.poirier@linaro.org, jeffrey.l.hugo@gmail.com, luca@z3ntu.xyz Cc: agross@kernel.org, ohad@wizery.com, linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, Sibi Sankar , stable@vger.kernel.org Subject: [PATCH v4 3/3] remoteproc: qcom_q6v5_mss: Reload the mba region on coredump Date: Thu, 5 Mar 2020 01:17:29 +0530 Message-Id: <20200304194729.27979-4-sibis@codeaurora.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200304194729.27979-1-sibis@codeaurora.org> References: <20200304194729.27979-1-sibis@codeaurora.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On secure devices after a wdog/fatal interrupt, the mba region has to be refreshed in order to prevent the following errors during mba load. Err Logs: remoteproc remoteproc2: stopped remote processor 4080000.remoteproc qcom-q6v5-mss 4080000.remoteproc: PBL returned unexpected status -284031232 qcom-q6v5-mss 4080000.remoteproc: PBL returned unexpected status -284031232 .... qcom-q6v5-mss 4080000.remoteproc: PBL returned unexpected status -284031232 qcom-q6v5-mss 4080000.remoteproc: MBA booted, loading mpss Fixes: 7dd8ade24dc2a ("remoteproc: qcom: q6v5-mss: Add custom dump function for modem") Cc: stable@vger.kernel.org Signed-off-by: Sibi Sankar --- drivers/remoteproc/qcom_q6v5_mss.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c index b8a922181de8a..d7667418a62f4 100644 --- a/drivers/remoteproc/qcom_q6v5_mss.c +++ b/drivers/remoteproc/qcom_q6v5_mss.c @@ -1042,6 +1042,23 @@ static void q6v5_mba_reclaim(struct q6v5 *qproc) } } +static int q6v5_reload_mba(struct rproc *rproc) +{ + struct q6v5 *qproc = rproc->priv; + const struct firmware *fw; + int ret; + + ret = request_firmware(&fw, rproc->firmware, qproc->dev); + if (ret < 0) + return ret; + + q6v5_load(rproc, fw); + ret = q6v5_mba_load(qproc); + release_firmware(fw); + + return ret; +} + static int q6v5_mpss_load(struct q6v5 *qproc) { const struct elf32_phdr *phdrs; @@ -1221,7 +1238,7 @@ static void qcom_q6v5_dump_segment(struct rproc *rproc, /* Unlock mba before copying segments */ if (!qproc->dump_mba_loaded) { - ret = q6v5_mba_load(qproc); + ret = q6v5_reload_mba(rproc); if (!ret) { /* Reset ownership back to Linux to copy segments */ ret = q6v5_xfer_mem_ownership(qproc, &qproc->mpss_perm, -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project