From patchwork Fri Jan 15 12:13:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vivek Kumar Gautam X-Patchwork-Id: 12022429 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=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT 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 1E5D4C433DB for ; Fri, 15 Jan 2021 12:17:17 +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 D4BD120691 for ; Fri, 15 Jan 2021 12:17:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D4BD120691 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com 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:MIME-Version:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:References:In-Reply-To:Message-Id:Date:Subject:To: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=4v0rMIPX7mKEoog5tMvaOJuZk1JAKIEdtelCZ/v3zTE=; b=hP3xuFaDO4Iy7x1xt/lg9YXHVc XNleHO7N+geekO//1nYigA3bwhjR5fOXL/lNjhpJOo2YK2rJIFgQvvGGbrJT9rnaUXNdHgXLVMEzS +CRe2MYCJKUT4bZYxgtPt0LhackpIeiEWiOOaOH8ktXyAfv7SfjIVfGmv/MWADCjAwUlCA/nf3aM6 x8YiAY1kEEpxAybf7Pm0c7UwHFfZZJbHh0TRN1TZCJozkhqs9Xt2r0bqHHOsit+Pu54o+DgxeIkHf hGAkYESe0RwJ8im6l7GdgDG2fQ6YYxIHqKhGuki1HFKFfMl8aTe0IaMEdnmZZUkr9wetDKVRTT4LJ 8fFmBvFw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l0O0P-0007Nn-DU; Fri, 15 Jan 2021 12:15:05 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l0Nzt-0007CK-Bx for linux-arm-kernel@lists.infradead.org; Fri, 15 Jan 2021 12:14:34 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7BC48143B; Fri, 15 Jan 2021 04:14:32 -0800 (PST) Received: from usa.arm.com (a074945.blr.arm.com [10.162.16.71]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id F065D3F70D; Fri, 15 Jan 2021 04:14:27 -0800 (PST) From: Vivek Gautam To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux-foundation.org, virtualization@lists.linux-foundation.org Subject: [PATCH RFC v1 08/15] iommu: Add asid_bits to arm smmu-v3 stage1 table info Date: Fri, 15 Jan 2021 17:43:35 +0530 Message-Id: <20210115121342.15093-9-vivek.gautam@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210115121342.15093-1-vivek.gautam@arm.com> References: <20210115121342.15093-1-vivek.gautam@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210115_071433_491778_7686920F X-CRM114-Status: GOOD ( 13.91 ) 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: jean-philippe@linaro.org, kevin.tian@intel.com, jacob.jun.pan@linux.intel.com, mst@redhat.com, joro@8bytes.org, will.deacon@arm.com, shameerali.kolothum.thodi@huawei.com, eric.auger@redhat.com, alex.williamson@redhat.com, yi.l.liu@intel.com, vivek.gautam@arm.com, lorenzo.pieralisi@arm.com, robin.murphy@arm.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org aisd_bits data is required to prepare stage-1 tables for arm-smmu-v3. Signed-off-by: Vivek Gautam Cc: Joerg Roedel Cc: Will Deacon Cc: Robin Murphy Cc: Jean-Philippe Brucker Cc: Eric Auger Cc: Alex Williamson Cc: Kevin Tian Cc: Jacob Pan Cc: Liu Yi L Cc: Lorenzo Pieralisi Cc: Shameerali Kolothum Thodi --- include/uapi/linux/iommu.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/uapi/linux/iommu.h b/include/uapi/linux/iommu.h index 082d758dd016..96abbfc7c643 100644 --- a/include/uapi/linux/iommu.h +++ b/include/uapi/linux/iommu.h @@ -357,7 +357,7 @@ struct iommu_pasid_smmuv3 { __u32 version; __u8 s1fmt; __u8 s1dss; - __u8 padding[2]; + __u16 asid_bits; }; /**