From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Tero Kristo Subject: [PATCHv8 13/15] remoteproc/omap: Report device exceptions and trigger recovery Date: Fri, 13 Mar 2020 10:17:16 +0200 Message-ID: <20200313081718.30612-14-t-kristo@ti.com> In-Reply-To: <20200313081718.30612-1-t-kristo@ti.com> References: <20200313081718.30612-1-t-kristo@ti.com> MIME-Version: 1.0 Content-Type: text/plain To: bjorn.andersson@linaro.org, ohad@wizery.com, linux-remoteproc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, mathieu.poirier@linaro.org, s-anna@ti.com, afd@ti.com, Tero Kristo List-ID: From: Suman Anna The OMAP remote processors send a special mailbox message (RP_MBOX_CRASH) when they crash and detect an internal device exception. Add support to the mailbox handling function upon detection of this special message to report this crash to the remoteproc core. The remoteproc core can trigger a recovery using the prevailing recovery mechanism, already in use for MMU Fault recovery. Co-developed-by: Subramaniam Chanderashekarapuram Signed-off-by: Subramaniam Chanderashekarapuram Signed-off-by: Suman Anna Signed-off-by: Tero Kristo Reviewed-by: Bjorn Andersson Reviewed-by: Andrew F. Davis Acked-by: Mathieu Poirier --- drivers/remoteproc/omap_remoteproc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/remoteproc/omap_remoteproc.c b/drivers/remoteproc/omap_remoteproc.c index ba7c1a1c17d6..ece60a183e19 100644 --- a/drivers/remoteproc/omap_remoteproc.c +++ b/drivers/remoteproc/omap_remoteproc.c @@ -383,8 +383,12 @@ static void omap_rproc_mbox_callback(struct mbox_client *client, void *data) switch (msg) { case RP_MBOX_CRASH: - /* just log this for now. later, we'll also do recovery */ + /* + * remoteproc detected an exception, notify the rproc core. + * The remoteproc core will handle the recovery. + */ dev_err(dev, "omap rproc %s crashed\n", name); + rproc_report_crash(oproc->rproc, RPROC_FATAL_ERROR); break; case RP_MBOX_ECHO_REPLY: dev_info(dev, "received echo reply from %s\n", name); -- 2.17.1 -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki 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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 2E567C10DCE for ; Fri, 13 Mar 2020 08:18:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0621720749 for ; Fri, 13 Mar 2020 08:18:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="SqtEmuh9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726794AbgCMISD (ORCPT ); Fri, 13 Mar 2020 04:18:03 -0400 Received: from lelv0143.ext.ti.com ([198.47.23.248]:57408 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726514AbgCMISA (ORCPT ); Fri, 13 Mar 2020 04:18:00 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 02D8HwlT117772; Fri, 13 Mar 2020 03:17:58 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1584087478; bh=IaFqnCAxGg6QfO8RvZqQWbd4kU8xE3ZjWCsuhoZVVFs=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=SqtEmuh9EPp00EvUwG57Ox97zFl04NjqbR2UpwQAgPqR1PjtFfTLSlZl4OO9c34fA 4Ux/tDBSl/W5TYf3nnGibZaZxpf2aZt+UkSn9CUwih/euIGZMcM59zM2hBgBXG/9Q5 IxgxFQCrVuJnpRHyKZReVfz1ZOWDRuFz2M/9ReNs= Received: from DLEE114.ent.ti.com (dlee114.ent.ti.com [157.170.170.25]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 02D8Hwmr047590 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 13 Mar 2020 03:17:58 -0500 Received: from DLEE101.ent.ti.com (157.170.170.31) by DLEE114.ent.ti.com (157.170.170.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Fri, 13 Mar 2020 03:17:58 -0500 Received: from localhost.localdomain (10.64.41.19) by DLEE101.ent.ti.com (157.170.170.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Fri, 13 Mar 2020 03:17:58 -0500 Received: from sokoban.bb.dnainternet.fi (ileax41-snat.itg.ti.com [10.172.224.153]) by localhost.localdomain (8.15.2/8.15.2) with ESMTP id 02D8HQlj097835; Fri, 13 Mar 2020 03:17:56 -0500 From: Tero Kristo To: , , CC: , , , , Tero Kristo Subject: [PATCHv8 13/15] remoteproc/omap: Report device exceptions and trigger recovery Date: Fri, 13 Mar 2020 10:17:16 +0200 Message-ID: <20200313081718.30612-14-t-kristo@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200313081718.30612-1-t-kristo@ti.com> References: <20200313081718.30612-1-t-kristo@ti.com> MIME-Version: 1.0 Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Suman Anna The OMAP remote processors send a special mailbox message (RP_MBOX_CRASH) when they crash and detect an internal device exception. Add support to the mailbox handling function upon detection of this special message to report this crash to the remoteproc core. The remoteproc core can trigger a recovery using the prevailing recovery mechanism, already in use for MMU Fault recovery. Co-developed-by: Subramaniam Chanderashekarapuram Signed-off-by: Subramaniam Chanderashekarapuram Signed-off-by: Suman Anna Signed-off-by: Tero Kristo Reviewed-by: Bjorn Andersson Reviewed-by: Andrew F. Davis Acked-by: Mathieu Poirier --- drivers/remoteproc/omap_remoteproc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/remoteproc/omap_remoteproc.c b/drivers/remoteproc/omap_remoteproc.c index ba7c1a1c17d6..ece60a183e19 100644 --- a/drivers/remoteproc/omap_remoteproc.c +++ b/drivers/remoteproc/omap_remoteproc.c @@ -383,8 +383,12 @@ static void omap_rproc_mbox_callback(struct mbox_client *client, void *data) switch (msg) { case RP_MBOX_CRASH: - /* just log this for now. later, we'll also do recovery */ + /* + * remoteproc detected an exception, notify the rproc core. + * The remoteproc core will handle the recovery. + */ dev_err(dev, "omap rproc %s crashed\n", name); + rproc_report_crash(oproc->rproc, RPROC_FATAL_ERROR); break; case RP_MBOX_ECHO_REPLY: dev_info(dev, "received echo reply from %s\n", name); -- 2.17.1 -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki