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=-8.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 784EFC433E1 for ; Mon, 13 Jul 2020 15:12:41 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 4C1142065D for ; Mon, 13 Jul 2020 15:12:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="sqTastFa"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="raavrl3W" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4C1142065D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=D5Z85XmQbdM+RM7Cplcrurx2wFB7wQoZYcar35tCye8=; b=sqTastFalYxC+Jt+3HLFEqbat bT+goA9DgOWq4y2DQl3m928KLdmGZYlOsHfCWt4fNCw3kqdFOwX3SsWZVZa4nw20hlAZ6DIh+ERdD VHybtcfgane7J3v6myf24aKBxo3XNRdyIIftjMEYMl8DzdLCIa/yoaPr6rok/YqOxtuHtXII4XBWF p8mhLubm+wBb8HcS6+jYm6vAy4ZZwhGMVQfl/Z6Thn/Hao6Xb57Q+G4E2/LwmDr+rRMFrxfUMvE6a vcHIywF1zh0oWRR/3bMI4wNUNjukMNFDX15CD/qznMR/RnZQrfKvpun+9n5zBDUn+JdwCKGiP12kG GZVUMdQqw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jv079-0001mJ-4n; Mon, 13 Jul 2020 15:11:31 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jv076-0001lT-Ck for linux-arm-kernel@lists.infradead.org; Mon, 13 Jul 2020 15:11:29 +0000 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (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 62FEC2065D; Mon, 13 Jul 2020 15:11:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594653087; bh=I6Vfs7pD+NK7NatL7bVzCuvg+VwzAetuiVaLfgSNDAc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=raavrl3WdV/gjrwIT6jXPmi7d598ZzBVpbJbp9TE8L1/4mL44XtWlTNEUHGlk22bU aq5EJWlXQCRohdHmlaPI6zmkuKZLBrq1IjlBa+/+wijh3AQ5d4D7X1ntkV6eeCToJA OqmV/TgXiGeqmqJTPFMLFbwR5J8WgtgyMY/8Yt+M= Date: Mon, 13 Jul 2020 16:11:23 +0100 From: Will Deacon To: Jordan Crouse Subject: Re: [PATCH] iommu/arm-smmu: Add a init_context_bank implementation hook Message-ID: <20200713151123.GB3072@willie-the-truck> References: <20200611223656.4724-1-jcrouse@codeaurora.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200611223656.4724-1-jcrouse@codeaurora.org> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200713_111128_504851_2E8C23BA X-CRM114-Status: GOOD ( 14.51 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-msm@vger.kernel.org, Joerg Roedel , Robin Murphy , linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, freedreno@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Jun 11, 2020 at 04:36:56PM -0600, Jordan Crouse wrote: > Add a new implementation hook to allow the implementation specific code > to tweek the context bank configuration just before it gets written. > The first user will be the Adreno GPU implementation to turn on > SCTLR.HUPCF to ensure that a page fault doesn't terminating pending > transactions. Doing so could hang the GPU if one of the terminated > transactions is a CP read. > > This depends on the arm-smmu adreno SMMU implementation [1]. > > [1] https://patchwork.kernel.org/patch/11600943/ > > Signed-off-by: Jordan Crouse > --- > > drivers/iommu/arm-smmu-qcom.c | 13 +++++++++++++ > drivers/iommu/arm-smmu.c | 28 +++++++++++++--------------- > drivers/iommu/arm-smmu.h | 11 +++++++++++ > 3 files changed, 37 insertions(+), 15 deletions(-) This looks straightforward enough, but I don't want to merge this without a user and Sai's series has open questions afaict. Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel