From patchwork Tue Jan 28 22:00:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jordan Crouse X-Patchwork-Id: 11355241 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 60478924 for ; Tue, 28 Jan 2020 22:00:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3D3AB20716 for ; Tue, 28 Jan 2020 22:00:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="rKGUGHAV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726512AbgA1WAp (ORCPT ); Tue, 28 Jan 2020 17:00:45 -0500 Received: from mail25.static.mailgun.info ([104.130.122.25]:15103 "EHLO mail25.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726482AbgA1WAo (ORCPT ); Tue, 28 Jan 2020 17:00:44 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1580248844; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=3XTHOrqJBEezFPn/s5nwaKJiKFWkMkhGMTc5GyAom3o=; b=rKGUGHAVlD9CIHFxlwCla7NhZepqHPQsTn75T8TOA4/uAHBnK90HQdhMAvvpV4yQ461wbfDo hQu0mA6nFP28pCEgAgvTUVoh1m2FgGS7eVkgx9N48+3kwoKFhTlBVXZbHrBCPG3rHQzqbhVR gVIiz9zJrcF3ROS/olHtwD4L4Bg= X-Mailgun-Sending-Ip: 104.130.122.25 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5e30af05.7fe12ba535a8-smtp-out-n01; Tue, 28 Jan 2020 22:00:37 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id E89FCC447BB; Tue, 28 Jan 2020 22:00:34 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from jcrouse1-lnx.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: jcrouse) by smtp.codeaurora.org (Postfix) with ESMTPSA id 9C64DC433CB; Tue, 28 Jan 2020 22:00:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 9C64DC433CB Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=jcrouse@codeaurora.org From: Jordan Crouse To: iommu@lists.linux-foundation.org Cc: robin.murphy@arm.com, will@kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, Joerg Roedel , linux-kernel@vger.kernel.org Subject: [PATCH v5 1/5] iommu: Add DOMAIN_ATTR_SPLIT_TABLES Date: Tue, 28 Jan 2020 15:00:15 -0700 Message-Id: <1580248819-12644-2-git-send-email-jcrouse@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1580248819-12644-1-git-send-email-jcrouse@codeaurora.org> References: <1580248819-12644-1-git-send-email-jcrouse@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add a new attribute to enable and query the state of split pagetables for the domain. Acked-by: Will Deacon Signed-off-by: Jordan Crouse --- include/linux/iommu.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/iommu.h b/include/linux/iommu.h index d1b5f4d..b14398b 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -126,6 +126,8 @@ enum iommu_attr { DOMAIN_ATTR_FSL_PAMUV1, DOMAIN_ATTR_NESTING, /* two stages of translation */ DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE, + /* Enable split pagetables (for example, TTBR1 on arm-smmu) */ + DOMAIN_ATTR_SPLIT_TABLES, DOMAIN_ATTR_MAX, };