From patchwork Thu Nov 21 09:12:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dennis-YC Hsieh X-Patchwork-Id: 11255953 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 99A07109A for ; Thu, 21 Nov 2019 09:16:15 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 71FEF2071C for ; Thu, 21 Nov 2019 09:16:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="c/XNWoqM"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="Jry993/a" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 71FEF2071C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=/WbX56FT/RfHVfIXfG3v3Klt9JYK87qTCUGtKgU8bwE=; b=c/XNWoqMpsW4og cDKhF9Ym2dvT07XvETFC4vshNM8KFs4SiVhEtR+r68miF2WKBOdI9Rij+OW4k9RU62tcLON8G1Vxs qiEK/kr3PYKZSVjEMOQiU/fj8B400XVBZ6qq5PixYgDyWmjXFlukdxjcI/IJHKboWAJyTONlTQAM7 bb5Ir0bPXYkDH6c8blNatX8EoXZfzvQzyQeBUxbd6xfojTy3+3uWlgVaNO6wv2nLOuNm63Zwo27Td vdX14Ag/hZFjiE2suSg3EV3nQyBlEUREFWQ1qkgq1Lo813NytP0CzxOnj/XL3xLKRrStRkPlPMTFu RJQo5kRvbuKcYp/6WvHg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iXiZO-0005HQ-Ol; Thu, 21 Nov 2019 09:16:10 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iXiX3-0001nl-JD; Thu, 21 Nov 2019 09:13:47 +0000 X-UUID: a14a61be17fd4826a9761d5f709ee63b-20191121 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=z8Sy2iqPMC8IL+xRKywGw86kYgTHn2BKv7itrUQoNkg=; b=Jry993/aWcgkp2TU6m2sk+BqCSGqReUgNm9TUiwLkDtKPepOIZj5Gvyd3YHCWBGYMNxKsmfVV1cGqQguNKFVUIC+qvAhp4r9m7Xer5JBPPRHR5uGa9OtKMTjLM5q/0Xa+jVvFIWnvJ5MIZpvNVZW6EMQsehLOdwOuM1m7Ck1mt0=; X-UUID: a14a61be17fd4826a9761d5f709ee63b-20191121 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 116382354; Thu, 21 Nov 2019 01:13:39 -0800 Received: from mtkmbs08n1.mediatek.inc (172.21.101.55) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 21 Nov 2019 01:13:43 -0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs08n1.mediatek.inc (172.21.101.55) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 21 Nov 2019 17:13:05 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Thu, 21 Nov 2019 17:13:29 +0800 From: Dennis YC Hsieh To: Rob Herring , Matthias Brugger , Jassi Brar Subject: [PATCH v1 04/12] mailbox: mediatek: cmdq: clear task in channel before shutdown Date: Thu, 21 Nov 2019 17:12:24 +0800 Message-ID: <1574327552-11806-5-git-send-email-dennis-yc.hsieh@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1574327552-11806-1-git-send-email-dennis-yc.hsieh@mediatek.com> References: <1574327552-11806-1-git-send-email-dennis-yc.hsieh@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191121_011345_654885_5B506A02 X-CRM114-Status: UNSURE ( 8.21 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [216.200.240.184 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, wsd_upstream@mediatek.com, linux-kernel@vger.kernel.org, Houlong Wei , Dennis YC Hsieh , linux-mediatek@lists.infradead.org, Bibby Hsieh , CK Hu , linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org Do success callback in channel when shutdown. For those task not finish, callback with error code thus client has chance to cleanup or reset. Signed-off-by: Dennis YC Hsieh --- drivers/mailbox/mtk-cmdq-mailbox.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c index fd519b6..c12a768 100644 --- a/drivers/mailbox/mtk-cmdq-mailbox.c +++ b/drivers/mailbox/mtk-cmdq-mailbox.c @@ -450,6 +450,32 @@ static int cmdq_mbox_startup(struct mbox_chan *chan) static void cmdq_mbox_shutdown(struct mbox_chan *chan) { + struct cmdq_thread *thread = (struct cmdq_thread *)chan->con_priv; + struct cmdq *cmdq = dev_get_drvdata(chan->mbox->dev); + struct cmdq_task *task, *tmp; + unsigned long flags; + + spin_lock_irqsave(&thread->chan->lock, flags); + if (list_empty(&thread->task_busy_list)) + goto done; + + WARN_ON(cmdq_thread_suspend(cmdq, thread) < 0); + + /* make sure executed tasks have success callback */ + cmdq_thread_irq_handler(cmdq, thread); + if (list_empty(&thread->task_busy_list)) + goto done; + + list_for_each_entry_safe(task, tmp, &thread->task_busy_list, + list_entry) { + cmdq_task_exec_done(task, -ECONNABORTED); + kfree(task); + } + + cmdq_thread_disable(cmdq, thread); + clk_disable(cmdq->clock); +done: + spin_unlock_irqrestore(&thread->chan->lock, flags); } static const struct mbox_chan_ops cmdq_mbox_chan_ops = {