From patchwork Fri Oct 27 12:41:22 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Loic PALLARDY X-Patchwork-Id: 10029739 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 7C10A6032C for ; Fri, 27 Oct 2017 12:42:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6D88228F30 for ; Fri, 27 Oct 2017 12:42:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 60F4228F34; Fri, 27 Oct 2017 12:42:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EEE5A28F30 for ; Fri, 27 Oct 2017 12:42:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752348AbdJ0MmC (ORCPT ); Fri, 27 Oct 2017 08:42:02 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:33671 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752622AbdJ0Mlx (ORCPT ); Fri, 27 Oct 2017 08:41:53 -0400 Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx08-.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v9RCdU7n030382; Fri, 27 Oct 2017 14:41:51 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx08-00178001.pphosted.com with ESMTP id 2duapy88n9-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Fri, 27 Oct 2017 14:41:51 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 22AA534; Fri, 27 Oct 2017 12:41:51 +0000 (GMT) Received: from Webmail-eu.st.com (sfhdag7node2.st.com [10.75.127.20]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id ED72A2702; Fri, 27 Oct 2017 12:41:50 +0000 (GMT) Received: from localhost (10.75.127.48) by SFHDAG7NODE2.st.com (10.75.127.20) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Fri, 27 Oct 2017 14:41:50 +0200 From: Loic Pallardy To: , CC: , , , Loic Pallardy Subject: [PATCH 2/2] remoteproc: debug: add carveouts list dump feature Date: Fri, 27 Oct 2017 14:41:22 +0200 Message-ID: <1509108082-22201-3-git-send-email-loic.pallardy@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1509108082-22201-1-git-send-email-loic.pallardy@st.com> References: <1509108082-22201-1-git-send-email-loic.pallardy@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.48] X-ClientProxiedBy: SFHDAG4NODE3.st.com (10.75.127.12) To SFHDAG7NODE2.st.com (10.75.127.20) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-10-27_07:, , signatures=0 Sender: linux-remoteproc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch offers the capability to dump memory carveouts associated to one remoteprocessor. Signed-off-by: Loic Pallardy --- drivers/remoteproc/remoteproc_debugfs.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/drivers/remoteproc/remoteproc_debugfs.c b/drivers/remoteproc/remoteproc_debugfs.c index c1c9f58..982e6a7 100644 --- a/drivers/remoteproc/remoteproc_debugfs.c +++ b/drivers/remoteproc/remoteproc_debugfs.c @@ -252,6 +252,35 @@ static ssize_t rproc_rsc_table_open(struct inode *inode, struct file *file) .release = single_release, }; +/* Expose carveout content via debugfs */ +static int rproc_carveouts_show(struct seq_file *seq, void *p) +{ + struct rproc *rproc = seq->private; + struct rproc_mem_entry *carveout; + + list_for_each_entry(carveout, &rproc->carveouts, node) { + seq_puts(seq, "Carveout memory entry:\n"); + seq_printf(seq, "\tVirtual address: %p\n", carveout->va); + seq_printf(seq, "\tDMA address: %pad\n", &carveout->dma); + seq_printf(seq, "\tDevice address: 0x%x\n", carveout->da); + seq_printf(seq, "\tLength: 0x%x Bytes\n\n", carveout->len); + } + + return 0; +} + +static ssize_t rproc_carveouts_open(struct inode *inode, struct file *file) +{ + return single_open(file, rproc_carveouts_show, inode->i_private); +} + +static const struct file_operations rproc_carveouts_ops = { + .open = rproc_carveouts_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + void rproc_remove_trace_file(struct dentry *tfile) { debugfs_remove(tfile); @@ -297,6 +326,8 @@ void rproc_create_debug_dir(struct rproc *rproc) rproc, &rproc_recovery_ops); debugfs_create_file("resource_table", 0400, rproc->dbg_dir, rproc, &rproc_rsc_table_ops); + debugfs_create_file("carveout_memories", 0400, rproc->dbg_dir, + rproc, &rproc_carveouts_ops); } void __init rproc_init_debugfs(void)