From patchwork Thu Apr 9 23:33:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jordan Crouse X-Patchwork-Id: 11482589 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 0A3661392 for ; Thu, 9 Apr 2020 23:34:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DF3F020857 for ; Thu, 9 Apr 2020 23:34:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="MjpOA4yW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726871AbgDIXeG (ORCPT ); Thu, 9 Apr 2020 19:34:06 -0400 Received: from mail27.static.mailgun.info ([104.130.122.27]:17068 "EHLO mail27.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726924AbgDIXeE (ORCPT ); Thu, 9 Apr 2020 19:34:04 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1586475244; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=LoEYHxHjJumMLwAkE0oLJJVPZMxtLaW944wQD+0R1kg=; b=MjpOA4yWNnaH92coteCLxPJSsQ9qnY7E0XhlripNcdy7bbZYoRJwW5N2gO8ZFhJlD9cXxq3n T7iURpYBuuMMGyLFKdcwUYznfi/lGarfiZn/pVZCtaUas7SlVIp9RWEiZs+rgI/iyddbSYS7 THfPy1tXFWpD0jheFbKDNSy9FpM= X-Mailgun-Sending-Ip: 104.130.122.27 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 5e8fb0ea.7f8ac2394dc0-smtp-out-n03; Thu, 09 Apr 2020 23:34:02 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 6D06EC072B7; Thu, 9 Apr 2020 23:33:58 +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 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from localhost.localdomain (c-71-237-101-98.hsd1.co.comcast.net [71.237.101.98]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: jcrouse) by smtp.codeaurora.org (Postfix) with ESMTPSA id 60A7FC433CB; Thu, 9 Apr 2020 23:33:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 60A7FC433CB 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: linux-arm-msm@vger.kernel.org, robin.murphy@arm.com, will@kernel.org, linux-arm-kernel@lists.infradead.org, Joerg Roedel , linux-kernel@vger.kernel.org Subject: [PATCH v6 1/5] iommu: Add DOMAIN_ATTR_SPLIT_TABLES Date: Thu, 9 Apr 2020 17:33:46 -0600 Message-Id: <20200409233350.6343-2-jcrouse@codeaurora.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200409233350.6343-1-jcrouse@codeaurora.org> References: <20200409233350.6343-1-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 7ef8b0bda695..d0f96f748a00 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, };