Message ID | 20210510163625.407105-8-andrey.grodzovsky@amd.com |
---|---|
State | New |
Headers | show
Return-Path: <linux-pci-owner@vger.kernel.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=<UNKNOWN>) Authentication-Results: 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=QvX5zpMw; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4Ff6CF5Gf0z9sWq for <incoming@patchwork.ozlabs.org>; Tue, 11 May 2021 02:36:57 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231577AbhEJQiB (ORCPT <rfc822;incoming@patchwork.ozlabs.org>); Mon, 10 May 2021 12:38:01 -0400 Received: from mail-co1nam11on2044.outbound.protection.outlook.com ([40.107.220.44]:50529 "EHLO NAM11-CO1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S231374AbhEJQiA (ORCPT <rfc822;linux-pci@vger.kernel.org>); Mon, 10 May 2021 12:38:00 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=DY0+Pxbnuj+jRO5JeW71jQVuQsWzUk6njv3luA+k0/kLdytnhtqfTEqRZyk5HLltrmaj7t8mnAbfdeHBW8ekif0SMtPLRxglYuiNR/3uBzVlJRc/qCu4RknJeOxlH/QlZkgWKtEG4EmNHAyPizibrYwFmEl0sk+2aBLEIwkRHVmMeJe3/lLJnt1xq2NKsN69P4ox3575YNl5ccOscnXiZ2/Wfz5bUErHn/San51o67LMIVPss/3qdCUk7SR40j6sAAudcnR2XeQnArlQmfDujSpvDP9IcqjeWlQzIFdZah+zpNvbjyo3OXOd1/WRfrltvT5Ubt7RLmtNHK/ypY0ZFw== 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-SenderADCheck; bh=ImiQhpPoXfItMc84rz4U+sl7ukQBW3gycLm8/fXkr9o=; b=FVkfI/ZvATN/g8uXINeVRxzj1XMLglvQ3hjQQ5eSpDhlxFIDkjQauDCu4u3jNaJeM6QWeL1dq1oJ6x9zQGJaM809Wlu9t8syDPXMTt5ZLs2an1Lgo6ZPSm/EPOu+ogEo+t8OZ090so2Stqn2YiA4Bae+kje/t5BdPg70f72PGs+GXHfX9Tjtbx0kgucajLppYCVSZ+73WvQZLBA159aEycKmMrpF45orbp7EJeqBigJ3WKv0bbIoGwZlokeougqsdcNTVe1g1hc9UlmH4HQroGPdLJpyjsRc0AiV4jWhe0wenQL7tQGUqqriTjBJya25RULAP4d4ZHWFVUc3Cfm13w== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=amd.com; dmarc=pass action=none header.from=amd.com; dkim=pass header.d=amd.com; 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=ImiQhpPoXfItMc84rz4U+sl7ukQBW3gycLm8/fXkr9o=; b=QvX5zpMwKJS7tM33SuWHN5dgn4f9sHuvaFU0paoYM3fi9C+YinJGg0g6wdW4yvXjbysnMB2uo1bwuI7zFeXNamy38XFb9Yk3UcK0KkGNV8vueUtE8LaXi/a/7foIdX3v2V+wPjMYdES0u2NPbQ4NjcNKttKcUGqdUy84Is1R7MY= Authentication-Results: lists.freedesktop.org; dkim=none (message not signed) header.d=none;lists.freedesktop.org; dmarc=none action=none header.from=amd.com; Received: from SN6PR12MB4623.namprd12.prod.outlook.com (2603:10b6:805:e9::17) by SA0PR12MB4462.namprd12.prod.outlook.com (2603:10b6:806:95::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4108.25; Mon, 10 May 2021 16:36:54 +0000 Received: from SN6PR12MB4623.namprd12.prod.outlook.com ([fe80::ad51:8c49:b171:856c]) by SN6PR12MB4623.namprd12.prod.outlook.com ([fe80::ad51:8c49:b171:856c%7]) with mapi id 15.20.4108.031; Mon, 10 May 2021 16:36:54 +0000 From: Andrey Grodzovsky <andrey.grodzovsky@amd.com> To: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-pci@vger.kernel.org, ckoenig.leichtzumerken@gmail.com, daniel.vetter@ffwll.ch, Harry.Wentland@amd.com Cc: ppaalanen@gmail.com, Alexander.Deucher@amd.com, gregkh@linuxfoundation.org, helgaas@kernel.org, Felix.Kuehling@amd.com, Andrey Grodzovsky <andrey.grodzovsky@amd.com>, =?utf-8?q?Christian_K=C3=B6n?= =?utf-8?q?ig?= <christian.koenig@amd.com> Subject: [PATCH v6 07/16] drm/amdgpu: Remap all page faults to per process dummy page. 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RFC Support hot device unplug in amdgpu
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diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 8c7ec09eb1a4..0d54e70278ca 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -48,6 +48,7 @@ #include <drm/ttm/ttm_placement.h> #include <drm/amdgpu_drm.h> +#include <drm/drm_drv.h> #include "amdgpu.h" #include "amdgpu_object.h" @@ -1905,18 +1906,28 @@ void amdgpu_ttm_set_buffer_funcs_status(struct amdgpu_device *adev, bool enable) static vm_fault_t amdgpu_ttm_fault(struct vm_fault *vmf) { struct ttm_buffer_object *bo = vmf->vma->vm_private_data; + struct drm_device *ddev = bo->base.dev; vm_fault_t ret; + int idx; ret = ttm_bo_vm_reserve(bo, vmf); if (ret) return ret; - ret = amdgpu_bo_fault_reserve_notify(bo); - if (ret) - goto unlock; + if (drm_dev_enter(ddev, &idx)) { + ret = amdgpu_bo_fault_reserve_notify(bo); + if (ret) { + drm_dev_exit(idx); + goto unlock; + } - ret = ttm_bo_vm_fault_reserved(vmf, vmf->vma->vm_page_prot, - TTM_BO_VM_NUM_PREFAULT, 1); + ret = ttm_bo_vm_fault_reserved(vmf, vmf->vma->vm_page_prot, + TTM_BO_VM_NUM_PREFAULT, 1); + + drm_dev_exit(idx); + } else { + ret = ttm_bo_vm_dummy_page(vmf, vmf->vma->vm_page_prot); + } if (ret == VM_FAULT_RETRY && !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) return ret;