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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, 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 A218DCA9EA0 for ; Fri, 18 Oct 2019 09:46:36 +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 6BCBA222BD for ; Fri, 18 Oct 2019 09:46:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6BCBA222BD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.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 37FC21416; Fri, 18 Oct 2019 09:46:36 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 40E8AF72 for ; Fri, 18 Oct 2019 09:46:35 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from theia.8bytes.org (8bytes.org [81.169.241.247]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id CBB8D608 for ; Fri, 18 Oct 2019 09:46:34 +0000 (UTC) Received: by theia.8bytes.org (Postfix, from userid 1000) id 70A44300; Fri, 18 Oct 2019 11:46:32 +0200 (CEST) Date: Fri, 18 Oct 2019 11:46:31 +0200 From: Joerg Roedel To: Thierry Reding Subject: Re: [PATCH 1/3] iommu/tegra-smmu: Use non-secure register for flushing Message-ID: <20191018094630.GA4670@8bytes.org> References: <20191016115026.1768745-1-thierry.reding@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20191016115026.1768745-1-thierry.reding@gmail.com> User-Agent: Mutt/1.10.1 (2018-07-13) Cc: linux-tegra@vger.kernel.org, Dmitry Osipenko , iommu@lists.linux-foundation.org, Jon Hunter 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 Wed, Oct 16, 2019 at 01:50:24PM +0200, Thierry Reding wrote: > From: Navneet Kumar > > Use PTB_ASID instead of SMMU_CONFIG to flush smmu. > PTB_ASID can be accessed from non-secure mode, SMMU_CONFIG cannot be. > Using SMMU_CONFIG could pose a problem when kernel doesn't have secure > mode access enabled from boot. > > Signed-off-by: Navneet Kumar > Reviewed-by: Dmitry Osipenko > Tested-by: Dmitry Osipenko > Signed-off-by: Thierry Reding > --- > drivers/iommu/tegra-smmu.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Applied all, thanks. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu