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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 6345AC433E1 for ; Mon, 17 Aug 2020 15:42:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2D42622D01 for ; Mon, 17 Aug 2020 15:42:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597678965; bh=sXtgcI/FlirC232oacrQyf899CGFW8M7zfPMnh/iWzs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=XQMaTVzaLIprJxA9h2vI1QUAtqL058mIc3d/I1XTpxMK5tS29eOVLq22In4hyCGuF SuqkXAzvsr6velUb0vMMudXKUCMIGG/yYWYbnLw+NyBRQgQgGJjj73JeQzwDaYOU+m 6EfdB6i8VPdj5jGeYQxTVQT6D9vHNG72BPu3CeGE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387574AbgHQPmn (ORCPT ); Mon, 17 Aug 2020 11:42:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:52794 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387520AbgHQPmi (ORCPT ); Mon, 17 Aug 2020 11:42:38 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 712D220760; Mon, 17 Aug 2020 15:42:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597678957; bh=sXtgcI/FlirC232oacrQyf899CGFW8M7zfPMnh/iWzs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dhqCePTCJpL2aD/uubEbf3eq6CEXFTpYiV1f2Fq7AIMrc6P1zwVuo1uUWaIt9ENT/ kmV2NvYroj3TPWD4bR9wpgXkLkUj1iOqgTI6ZGRwWDUpt610mOnDsG2P5O8RyCxlZ6 ge0EKd8+jnBvBJYbgR+lufVj7Q8obJcv3nFMWgFw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Bjorn Andersson , Rishabh Bhatnagar , Sibi Sankar , Sasha Levin Subject: [PATCH 5.7 047/393] soc: qcom: pdr: Reorder the PD state indication ack Date: Mon, 17 Aug 2020 17:11:37 +0200 Message-Id: <20200817143821.898364445@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200817143819.579311991@linuxfoundation.org> References: <20200817143819.579311991@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Sibi Sankar [ Upstream commit 72fe996f9643043c8f84e32c0610975b01aa555b ] The Protection Domains (PD) have a mechanism to keep its resources enabled until the PD down indication is acked. Reorder the PD state indication ack so that clients get to release the relevant resources before the PD goes down. Reviewed-by: Bjorn Andersson Reviewed-by: Rishabh Bhatnagar Fixes: fbe639b44a82 ("soc: qcom: Introduce Protection Domain Restart helpers") Reported-by: Rishabh Bhatnagar Signed-off-by: Sibi Sankar Link: https://lore.kernel.org/r/20200701195954.9007-1-sibis@codeaurora.org Signed-off-by: Bjorn Andersson Signed-off-by: Sasha Levin --- drivers/soc/qcom/pdr_interface.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/soc/qcom/pdr_interface.c b/drivers/soc/qcom/pdr_interface.c index 17ad3b8698e16..cd8828c857234 100644 --- a/drivers/soc/qcom/pdr_interface.c +++ b/drivers/soc/qcom/pdr_interface.c @@ -282,13 +282,15 @@ static void pdr_indack_work(struct work_struct *work) list_for_each_entry_safe(ind, tmp, &pdr->indack_list, node) { pds = ind->pds; - pdr_send_indack_msg(pdr, pds, ind->transaction_id); mutex_lock(&pdr->status_lock); pds->state = ind->curr_state; pdr->status(pds->state, pds->service_path, pdr->priv); mutex_unlock(&pdr->status_lock); + /* Ack the indication after clients release the PD resources */ + pdr_send_indack_msg(pdr, pds, ind->transaction_id); + mutex_lock(&pdr->list_lock); list_del(&ind->node); mutex_unlock(&pdr->list_lock); -- 2.25.1