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=-5.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 5BB51CA9EB5 for ; Mon, 4 Nov 2019 16:28:40 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (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 3258520848 for ; Mon, 4 Nov 2019 16:28:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="RDbrt94h" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3258520848 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 5DD65FC1; Mon, 4 Nov 2019 16:28:37 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 34A54B1F for ; Mon, 4 Nov 2019 05:16:38 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id E008C5D0 for ; Mon, 4 Nov 2019 05:16:37 +0000 (UTC) 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 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-Disposition: inline In-Reply-To: <07c27aa7d7785cb280ea17cdadf5326ae9c3cfd5.1568966170.git.saiprakash.ranjan@codeaurora.org> User-Agent: Mutt/1.5.23.1 (2014-03-12) X-Mailman-Approved-At: Mon, 04 Nov 2019 16:28:36 +0000 Cc: Rajendra Nayak , Robin Murphy , linux-kernel@vger.kernel.org, Stephen Boyd , iommu@lists.linux-foundation.org, Vivek Gautam , linux-arm-msm@vger.kernel.org, bjorn.andersson@linaro.org, Will Deacon X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.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 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu