From patchwork Tue May 31 15:56:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sierra Guiza, Alejandro (Alex)" X-Patchwork-Id: 1637455 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=amd.com header.i=@amd.com header.a=rsa-sha256 header.s=selector1 header.b=bPgc18dy; dkim-atps=neutral Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4LCH373QVRz9s07 for ; Wed, 1 Jun 2022 01:57:07 +1000 (AEST) Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by gandalf.ozlabs.org (Postfix) with ESMTP id 4LCH372zvQz4xZZ for ; Wed, 1 Jun 2022 01:57:07 +1000 (AEST) Received: by gandalf.ozlabs.org (Postfix) id 4LCH372wvHz4xZb; Wed, 1 Jun 2022 01:57:07 +1000 (AEST) Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: gandalf.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-ext4-owner@vger.kernel.org; receiver=) Authentication-Results: gandalf.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=amd.com header.i=@amd.com header.a=rsa-sha256 header.s=selector1 header.b=bPgc18dy; dkim-atps=neutral Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by gandalf.ozlabs.org (Postfix) with ESMTP id 4LCH372r3bz4xZZ for ; Wed, 1 Jun 2022 01:57:07 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345974AbiEaP5F (ORCPT ); Tue, 31 May 2022 11:57:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33376 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345946AbiEaP4u (ORCPT ); Tue, 31 May 2022 11:56:50 -0400 Received: from NAM12-BN8-obe.outbound.protection.outlook.com (mail-bn8nam12on2086.outbound.protection.outlook.com [40.107.237.86]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CF77495AF; Tue, 31 May 2022 08:56:48 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=OSs/Ld04MMg0TretMXIG3YIE8eUoJQ96g2N6P200mwBcHYDpSuhwduoOaRSg7Kdz2BSar8KU/2mcZybdRdq74Hb/zRqFph/v71AuA1yaSqanNS2UmB9hOIKKK/EMLkVksPO9kst6rf6rTXuwTV8PNB/wNP/Cbc7L+JDwW/aWDDr5mkI2ErXKH8I+HqffQ50Ijl59E7FaAutDLLN+9tYaO6tdjEeSDgjwjwOJkHC0pLlPKeEltloWrpBxtmQU3s86Zyd1GjHoE00YG7ZA7JpeI3nOquSZM+JZ1Z29Qzp+z5cosnNnfM3vPvRkWzyUmEYheOHyFQCOq5H+WSo9qgIg2Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; 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=Xa846fnxeU9bk+TyhpVkrT9/4QOUTaeNbDS2MCZJQec=; b=nkxxKHFWQTHGHLPKoPYPIsEPkxmsyDrDv9eyzfM+fBuO0qRif02xgqUv3I5bTpg0KRla1YFEX0QwsIGShF27WmWCrOhCZMUXCVeTmwCHfAo2FOf4G/DsxFaPem+bna3V9F4B+1O7hRMjGfYxDJrA1pj0wbYyW0LADhtUyDjLy1YQ6cd4NUeYNxj2APB0bf9aTtPTP0nJUQZK3pJUOeMd1bIuwsaTnm67xd8fUrkQYju7AEGNcRCnk3Fx/1snAPXr3ycOuP9vqycFIcUB/HNI0aD6ozazsjcI8EOHKqpu1vQhg5qvI4HAHSXaSCKYo+Vss/yOljAkctO06iqkaZ4Lsg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=nvidia.com smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Xa846fnxeU9bk+TyhpVkrT9/4QOUTaeNbDS2MCZJQec=; b=bPgc18dyHpBb5l35YOSItZmEaleflNznXY4JsPxLvJQ0mfGXQlZltYrBtfz5AFjYI1sjsH8kj8o+/Mlag6BZAgd9g05du5z0k5yyl6id/usZaThUvdGfNrsEkvg5lf3QcsUHrIbXP51p1jhHzUgj54df8rH0eorhJygsiBA9fbw= Received: from BN6PR16CA0025.namprd16.prod.outlook.com (2603:10b6:405:14::11) by PH7PR12MB6396.namprd12.prod.outlook.com (2603:10b6:510:1fc::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5293.19; Tue, 31 May 2022 15:56:47 +0000 Received: from BN8NAM11FT043.eop-nam11.prod.protection.outlook.com (2603:10b6:405:14:cafe::6d) by BN6PR16CA0025.outlook.office365.com (2603:10b6:405:14::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5314.12 via Frontend Transport; Tue, 31 May 2022 15:56:46 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by BN8NAM11FT043.mail.protection.outlook.com (10.13.177.218) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.5293.13 via Frontend Transport; Tue, 31 May 2022 15:56:46 +0000 Received: from alex-MS-7B09.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.28; Tue, 31 May 2022 10:56:44 -0500 From: Alex Sierra To: CC: , , , , , , , , , , , , Subject: [PATCH v4 06/13] drm/amdkfd: add SPM support for SVM Date: Tue, 31 May 2022 10:56:22 -0500 Message-ID: <20220531155629.20057-7-alex.sierra@amd.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220531155629.20057-1-alex.sierra@amd.com> References: <20220531155629.20057-1-alex.sierra@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: e0d9fafc-d521-4f3e-ffab-08da431e2a8e X-MS-TrafficTypeDiagnostic: PH7PR12MB6396:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230001)(4636009)(40470700004)(36840700001)(46966006)(336012)(426003)(4326008)(186003)(16526019)(1076003)(70586007)(70206006)(2616005)(83380400001)(40460700003)(8676002)(47076005)(86362001)(2906002)(81166007)(5660300002)(356005)(7416002)(44832011)(36860700001)(8936002)(508600001)(36756003)(7696005)(6666004)(6916009)(26005)(54906003)(316002)(82310400005)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 May 2022 15:56:46.7816 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e0d9fafc-d521-4f3e-ffab-08da431e2a8e X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT043.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB6396 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org When CPU is connected throug XGMI, it has coherent access to VRAM resource. In this case that resource is taken from a table in the device gmc aperture base. This resource is used along with the device type, which could be DEVICE_PRIVATE or DEVICE_COHERENT to create the device page map region. Also, MIGRATE_VMA_SELECT_DEVICE_COHERENT flag is selected for coherent type case during migration to device. Signed-off-by: Alex Sierra Reviewed-by: Felix Kuehling Signed-off-by: Christoph Hellwig --- drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 34 +++++++++++++++--------- 1 file changed, 21 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c index 997650d597ec..39b8c4710caf 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c @@ -671,13 +671,15 @@ svm_migrate_vma_to_ram(struct amdgpu_device *adev, struct svm_range *prange, migrate.vma = vma; migrate.start = start; migrate.end = end; - migrate.flags = MIGRATE_VMA_SELECT_DEVICE_PRIVATE; migrate.pgmap_owner = SVM_ADEV_PGMAP_OWNER(adev); + if (adev->gmc.xgmi.connected_to_cpu) + migrate.flags = MIGRATE_VMA_SELECT_DEVICE_COHERENT; + else + migrate.flags = MIGRATE_VMA_SELECT_DEVICE_PRIVATE; buf = kvcalloc(npages, 2 * sizeof(*migrate.src) + sizeof(uint64_t) + sizeof(dma_addr_t), GFP_KERNEL); - if (!buf) goto out; @@ -947,7 +949,7 @@ int svm_migrate_init(struct amdgpu_device *adev) { struct kfd_dev *kfddev = adev->kfd.dev; struct dev_pagemap *pgmap; - struct resource *res; + struct resource *res = NULL; unsigned long size; void *r; @@ -962,28 +964,34 @@ int svm_migrate_init(struct amdgpu_device *adev) * should remove reserved size */ size = ALIGN(adev->gmc.real_vram_size, 2ULL << 20); - res = devm_request_free_mem_region(adev->dev, &iomem_resource, size); - if (IS_ERR(res)) - return -ENOMEM; + if (adev->gmc.xgmi.connected_to_cpu) { + pgmap->range.start = adev->gmc.aper_base; + pgmap->range.end = adev->gmc.aper_base + adev->gmc.aper_size - 1; + pgmap->type = MEMORY_DEVICE_COHERENT; + } else { + res = devm_request_free_mem_region(adev->dev, &iomem_resource, size); + if (IS_ERR(res)) + return -ENOMEM; + pgmap->range.start = res->start; + pgmap->range.end = res->end; + pgmap->type = MEMORY_DEVICE_PRIVATE; + } - pgmap->type = MEMORY_DEVICE_PRIVATE; pgmap->nr_range = 1; - pgmap->range.start = res->start; - pgmap->range.end = res->end; pgmap->ops = &svm_migrate_pgmap_ops; pgmap->owner = SVM_ADEV_PGMAP_OWNER(adev); - pgmap->flags = MIGRATE_VMA_SELECT_DEVICE_PRIVATE; - + pgmap->flags = 0; /* Device manager releases device-specific resources, memory region and * pgmap when driver disconnects from device. */ r = devm_memremap_pages(adev->dev, pgmap); if (IS_ERR(r)) { pr_err("failed to register HMM device memory\n"); - /* Disable SVM support capability */ pgmap->type = 0; - devm_release_mem_region(adev->dev, res->start, resource_size(res)); + if (pgmap->type == MEMORY_DEVICE_PRIVATE) + devm_release_mem_region(adev->dev, res->start, + res->end - res->start + 1); return PTR_ERR(r); }