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=-5.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 AF604CA9ECF for ; Mon, 4 Nov 2019 05:16:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8497B2190F for ; Mon, 4 Nov 2019 05:16:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572844601; bh=+Gstgoc4FNXZX3hx73bDvUDPMCfgSMqepSBlnRA7H24=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=RzMC+kp8mt/HKSeHDZ7FOi2lSSc31GdWozQPZTc5bdGN7rjyxPtJQvkWrgkHNsQQl NfBltLi2LmL1ud3gUkvD2qMdYkJDCbDC73BWxaN/CMQFFUbByOU+CbGRJT4ZH1MqDP KEpDMfCrvDUh/REN+vueA63lD3DMeiXvhnz7fUn0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725857AbfKDFQi (ORCPT ); Mon, 4 Nov 2019 00:16:38 -0500 Received: from mail.kernel.org ([198.145.29.99]:41502 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727474AbfKDFQi (ORCPT ); Mon, 4 Nov 2019 00:16:38 -0500 Received: from localhost (mobile-107-92-63-247.mycingular.net [107.92.63.247]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 796162190F; Mon, 4 Nov 2019 05:16:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572844597; bh=+Gstgoc4FNXZX3hx73bDvUDPMCfgSMqepSBlnRA7H24=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=RDbrt94hDsDdIPashIMm12Q0DZxoDtVTvBmGRRcpVPPAgtmL2cR0OWnxIHiDW+Ev/ 1RZaTRwaS7hohZkUxlYP5ZCMVbrG7tx5abOhmHR+CWy0FQDwFM93HodwJU4i3s6sqU aamK/h10RdJHpWWJl2QyO2Fe9tWcaNBlHoMyTblc= Date: Sun, 3 Nov 2019 23:16:36 -0600 From: Andy Gross To: Sai Prakash Ranjan Cc: Robin Murphy , Will Deacon , Joerg Roedel , iommu@lists.linux-foundation.org, Stephen Boyd , Vivek Gautam , bjorn.andersson@linaro.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Rajendra Nayak Subject: Re: [PATCHv7 1/3] firmware: qcom_scm-64: Add atomic version of qcom_scm_call Message-ID: <20191104051636.GB5299@hector.lan> Mail-Followup-To: Sai Prakash Ranjan , Robin Murphy , Will Deacon , Joerg Roedel , iommu@lists.linux-foundation.org, Stephen Boyd , Vivek Gautam , bjorn.andersson@linaro.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Rajendra Nayak References: <07c27aa7d7785cb280ea17cdadf5326ae9c3cfd5.1568966170.git.saiprakash.ranjan@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <07c27aa7d7785cb280ea17cdadf5326ae9c3cfd5.1568966170.git.saiprakash.ranjan@codeaurora.org> User-Agent: Mutt/1.5.23.1 (2014-03-12) Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On Fri, Sep 20, 2019 at 01:34:27PM +0530, Sai Prakash Ranjan wrote: > From: Vivek Gautam > > There are scnenarios where drivers are required to make a > scm call in atomic context, such as in one of the qcom's > arm-smmu-500 errata [1]. > > [1] ("https://source.codeaurora.org/quic/la/kernel/msm-4.9/ > tree/drivers/iommu/arm-smmu.c?h=msm-4.9#n4842") > > Signed-off-by: Vivek Gautam > Reviewed-by: Bjorn Andersson > Reviewed-by: Stephen Boyd > Signed-off-by: Sai Prakash Ranjan > --- Acked-by: Andy Gross