From patchwork Sat Aug 24 00:10:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolin Chen X-Patchwork-Id: 13776149 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0F1C9C5321D for ; Sat, 24 Aug 2024 00:19:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=WgjAaKrc9hz0B54nKQ0zwOPPpQnmeqESwuEvGcVlrSg=; b=m32IbCq6paaw11Z5GqqWH32jzS EJfZA0pcAtLKpvcn51Z8e8XTUOdPhYRwqMIA24DpC/inlZOcMxXdy9X5G7MZfhQ3jDaiqP9O4nOyb 1zg/r+PdsLV+fIQ58/nYMuBHX4yhUibnFCYD+VSY++SXh8NPciSU4qeS4ZEzqHElI2CBq7VOJMi/E n9Y9KGFFy+VyoxoQWTv171+8mCQ5bLTDE6HjXLJ+b8P3OUWtxBLS7NiQFNLvnQd9i1F9+cGthYPOL 91G8uG1VOfg2WCXVXh5k8nB9QGJVOENB5v9/wlfaFUFQ5QUkef4BQPdhac7nixo5bNDpMCbvcHH3R ENIcBSiA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sheUd-000000012w2-4Aob; Sat, 24 Aug 2024 00:19:00 +0000 Received: from mail-dm6nam12on20601.outbound.protection.outlook.com ([2a01:111:f403:2417::601] helo=NAM12-DM6-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sheNH-000000011A2-1xGh for linux-arm-kernel@lists.infradead.org; Sat, 24 Aug 2024 00:11:25 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=VHTrRBFGjdz4itCHtau3D/ni1+vyryqmpaXixGedIo1z3LQ9adW1fogVgxkr7HxJRCRBXvITKKnJignplBsi7kPxAg3TPRQPvPoi91T+iBlAXzX/IGDGpgxLU5wdrYBwhXY3wGi6JJXTF7NFt417UvMHxsiYQ6sTg8dCOt+DWUK6qdRmHhlLKLxLuqa2hrrQlQgw3UIME/nAsyDhSL7pebqdsvY21gHZfT4uCE15km1aVfR6BS4JDCkg4zXxY96RAQj0238IVGU5YqfOffXhxF5KOLM6JfSWu1cqXYzdcSX57xUE/SIqGnQsJ+5MEW/UEDkiMxhPt3QLaUVEhjkmkg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=WgjAaKrc9hz0B54nKQ0zwOPPpQnmeqESwuEvGcVlrSg=; b=StkHEZblSpy8Who79vK7ZsTNGPR3apVacQQVahYqsgJBb6FZYa4KXVNqdUs3iWLGwP8lWnjFxZ24AzmWtEwppYGumDHw3GB1HKEB2EGBPr+SI4HCECfpCM5t/awKev3br1H5JlSgxl/mEEAER5w1Iwq5KBLyZAhVRFRRSmMY2n8baU3RaJV1BaTgpA+kyEyQSVprsGNmrrBOoDY3UmwdDB0ZvwZZWwkxlmy9RrlTJS3aob5P4jmnhz059xwpyzvHugrYA5RKM+2DMCd5GdY+Nfqt7Q5s6Wgs1ET9K1yyd+oGW+F4fGPeRUssXWrsSP6Ur2HGsEtE6M4971q2I9hwrg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.161) smtp.rcpttodomain=kernel.org smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=WgjAaKrc9hz0B54nKQ0zwOPPpQnmeqESwuEvGcVlrSg=; b=dpB13oivjQ45YG5OTddTmgXYKJ/aubcIFSNd9g1LqOnabOY5kDXAuGjdkAMRk+CSXVi0PhxP6M8RJX36+jjsFFH4H5TqMuN0xiihAWUpQ+I8U4gv9xUIoI88tgBG/qOSlsulw4mHKjKjj53n8gxZY9KHc791uUSvSuBT4WPMwCcUPinPCL3hX/s7mJNBQqkTYujrhEQv2guBd1b8cbPySUcOW29qAw31jgCH/tQi+Iv1Gc4Rc9nwnlMFU+QJX/rMQNNra3Z/XdGh7AVI3f8wLwpa+v1z1dhs/x4hEgMaDVt63xKUOmkTc/vYBVd+ixh3Rg4twZm0SQB6Yl6MTDM/6g== Received: from CH2PR14CA0024.namprd14.prod.outlook.com (2603:10b6:610:60::34) by CY5PR12MB6227.namprd12.prod.outlook.com (2603:10b6:930:21::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7875.25; Sat, 24 Aug 2024 00:11:15 +0000 Received: from CH1PEPF0000AD78.namprd04.prod.outlook.com (2603:10b6:610:60:cafe::ad) by CH2PR14CA0024.outlook.office365.com (2603:10b6:610:60::34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7897.19 via Frontend Transport; Sat, 24 Aug 2024 00:11:15 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.161) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.117.161 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.161; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.161) by CH1PEPF0000AD78.mail.protection.outlook.com (10.167.244.56) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7897.11 via Frontend Transport; Sat, 24 Aug 2024 00:11:15 +0000 Received: from rnnvmail203.nvidia.com (10.129.68.9) by mail.nvidia.com (10.129.200.67) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Fri, 23 Aug 2024 17:10:58 -0700 Received: from rnnvmail204.nvidia.com (10.129.68.6) by rnnvmail203.nvidia.com (10.129.68.9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Fri, 23 Aug 2024 17:10:57 -0700 Received: from Asurada-Nvidia.nvidia.com (10.127.8.12) by mail.nvidia.com (10.129.68.6) with Microsoft SMTP Server id 15.2.1544.4 via Frontend Transport; Fri, 23 Aug 2024 17:10:57 -0700 From: Nicolin Chen To: CC: , , , , , , , , , Subject: [PATCH v13 09/10] iommu/arm-smmu-v3: Start a new batch if new command is not supported Date: Fri, 23 Aug 2024 17:10:43 -0700 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH1PEPF0000AD78:EE_|CY5PR12MB6227:EE_ X-MS-Office365-Filtering-Correlation-Id: 5a1c0ccd-a61f-4fa0-9631-08dcc3d14539 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|82310400026|376014|36860700013; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(1800799024)(82310400026)(376014)(36860700013);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Aug 2024 00:11:15.5032 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5a1c0ccd-a61f-4fa0-9631-08dcc3d14539 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CH1PEPF0000AD78.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY5PR12MB6227 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240823_171123_548192_9DDFCD6E X-CRM114-Status: GOOD ( 14.98 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The VCMDQ in the tegra241-cmdqv driver has a guest mode that supports only a few invalidation commands. A batch is initialized with a cmdq, so it has to confirm whether a new command is supported or not. Add a supports_cmd function pointer to the cmdq structure, where the vcmdq driver should hook a command scan function. Add an inline helper too so it can be used by both sides. If a new command is not supported, simply issue the existing batch and re- init it as a new batch. Signed-off-by: Nicolin Chen --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 6 ++++-- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 7 +++++++ 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index fb7a1d7fcdd6..40dc5b9afa00 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -923,10 +923,12 @@ static void arm_smmu_cmdq_batch_add(struct arm_smmu_device *smmu, struct arm_smmu_cmdq_batch *cmds, struct arm_smmu_cmdq_ent *cmd) { + bool unsupported_cmd = !arm_smmu_cmdq_supports_cmd(cmds->cmdq, cmd); + bool force_sync = (cmds->num == CMDQ_BATCH_ENTRIES - 1) && + (smmu->options & ARM_SMMU_OPT_CMDQ_FORCE_SYNC); int index; - if (cmds->num == CMDQ_BATCH_ENTRIES - 1 && - (smmu->options & ARM_SMMU_OPT_CMDQ_FORCE_SYNC)) { + if (force_sync || unsupported_cmd) { arm_smmu_cmdq_issue_cmdlist(smmu, cmds->cmdq, cmds->cmds, cmds->num, true); arm_smmu_cmdq_batch_init(smmu, cmds); diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h index d820da90a09a..d4e5a22408e3 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h @@ -568,8 +568,15 @@ struct arm_smmu_cmdq { atomic_long_t *valid_map; atomic_t owner_prod; atomic_t lock; + bool (*supports_cmd)(struct arm_smmu_cmdq_ent *ent); }; +static inline bool arm_smmu_cmdq_supports_cmd(struct arm_smmu_cmdq *cmdq, + struct arm_smmu_cmdq_ent *ent) +{ + return cmdq->supports_cmd ? cmdq->supports_cmd(ent) : true; +} + struct arm_smmu_cmdq_batch { u64 cmds[CMDQ_BATCH_ENTRIES * CMDQ_ENT_DWORDS]; struct arm_smmu_cmdq *cmdq;