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=-8.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 0AEDCECDE3A for ; Tue, 9 Oct 2018 16:24:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BFAA4214DD for ; Tue, 9 Oct 2018 16:24:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="FewRzA0C"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="kRd4m2bn" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BFAA4214DD 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-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726923AbeJIXlt (ORCPT ); Tue, 9 Oct 2018 19:41:49 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:42314 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726415AbeJIXlt (ORCPT ); Tue, 9 Oct 2018 19:41:49 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 767AC60866; Tue, 9 Oct 2018 16:24:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1539102245; bh=E732yZacHh5Js6UCJf8iPHfocQFXpXKKNzpzQXWw0EY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FewRzA0CvsTBdUP0tY0cxM/yMNNiiCkf9aVpprYrJ2++3quQ86GL/yWTCbqDm6dBo jd0NO04FvKDVCsEoOcZWZnGWOwMi182ozbJcz6VXzpkIBYk2Hg0wZU4IMc6v6RmAg0 Si8UOkz3cchHIw8SlbX6+EhC+6Wsxm66mzwYjMUE= 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@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 5AAC760866; Tue, 9 Oct 2018 16:24:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1539102244; bh=E732yZacHh5Js6UCJf8iPHfocQFXpXKKNzpzQXWw0EY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kRd4m2bnwX2/oBoOrwKiiVuofYmvfl/ENAg3tgamX1tZf+ePKCC68W4w5zyxM96vz o5C5DnOa1dn1dsuL0Fp5Q2H3KQh4cDhrCnM2/POpkAzI1gg4zZV4RYPtA6Rj8Ugsr8 CxU/pi7a04PJsvvSf7omorZtOxK2Hy+GipRsfkLU= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 5AAC760866 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=sibis@codeaurora.org From: Sibi Sankar To: bjorn.andersson@linaro.org, ohad@wizery.com Cc: linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, tsoni@codeaurora.org, sricharan@codeaurora.org, akdwived@codeaurora.org, kyan@codeaurora.org, Sibi Sankar Subject: [PATCH v4 2/5] remoteproc: Add mechanism for custom dump function assignment Date: Tue, 9 Oct 2018 21:53:36 +0530 Message-Id: <20181009162339.30522-3-sibis@codeaurora.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181009162339.30522-1-sibis@codeaurora.org> References: <20181009162339.30522-1-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 This patch adds a mechanism for assigning each rproc dump segment with a custom dump function and private data. The dump function is to be called for each rproc segment during coredump if assigned. Signed-off-by: Sibi Sankar --- drivers/remoteproc/remoteproc_core.c | 39 ++++++++++++++++++++++++++++ include/linux/remoteproc.h | 5 ++++ 2 files changed, 44 insertions(+) diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index afa4274b6ccd..076579f44c3a 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -1121,6 +1121,45 @@ int rproc_coredump_add_segment(struct rproc *rproc, dma_addr_t da, size_t size) } EXPORT_SYMBOL(rproc_coredump_add_segment); +/** + * rproc_coredump_add_custom_segment() - add segment of device memory to + * coredump and extend it with custom + * dump function + * @rproc: handle of a remote processor + * @da: device address + * @size: size of segment + * @priv: private data + * @dumpfn: custom dump function called for each segment during coredump + * + * Add device memory to the list of segments to be included in the coredump + * and associate the segment with the given custom dump function and private + * data. + * + * Return: 0 on success, negative errno on error. + */ +int rproc_coredump_add_custom_segment(struct rproc *rproc, + dma_addr_t da, size_t size, void *priv, + void (*dumpfn)(struct rproc *rproc, + struct rproc_dump_segment *segment, + void *dest)) +{ + struct rproc_dump_segment *segment; + + segment = kzalloc(sizeof(*segment), GFP_KERNEL); + if (!segment) + return -ENOMEM; + + segment->da = da; + segment->size = size; + segment->priv = priv; + segment->dump = dumpfn; + + list_add_tail(&segment->node, &rproc->dump_segments); + + return 0; +} +EXPORT_SYMBOL(rproc_coredump_add_custom_segment); + /** * rproc_coredump() - perform coredump * @rproc: rproc handle diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h index 2a93e102d2ad..0003b23ab117 100644 --- a/include/linux/remoteproc.h +++ b/include/linux/remoteproc.h @@ -563,6 +563,11 @@ int rproc_boot(struct rproc *rproc); void rproc_shutdown(struct rproc *rproc); void rproc_report_crash(struct rproc *rproc, enum rproc_crash_type type); int rproc_coredump_add_segment(struct rproc *rproc, dma_addr_t da, size_t size); +int rproc_coredump_add_custom_segment(struct rproc *rproc, + dma_addr_t da, size_t size, void *priv, + void (*dumpfn)(struct rproc *rproc, + struct rproc_dump_segment *segment, + void *dest)); static inline struct rproc_vdev *vdev_to_rvdev(struct virtio_device *vdev) { -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project