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Tue, 28 Jan 2020 22:00:36 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 50A4BC447B1; 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 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> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200128_140045_525521_8E7C935E X-CRM114-Status: GOOD ( 11.55 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [104.130.122.25 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid 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: robin.murphy@arm.com, Joerg Roedel , linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, will@kernel.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.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, };