Received: by 2002:a25:868d:0:0:0:0:0 with SMTP id z13csp443051ybk; Wed, 20 May 2020 03:40:15 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxx+27nEoHMlhsu6gEnu9UWWd69RWOLh1xqvJ+rrXwqbi7A+0jtCqx13A9cmQ1ID47OuLum X-Received: by 2002:a17:906:b08c:: with SMTP id x12mr3106912ejy.154.1589971215196; Wed, 20 May 2020 03:40:15 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1589971215; cv=none; d=google.com; s=arc-20160816; b=giXYP1W433k8AJFJr9ZYZorQilQPG/8YIMRUDmcC/4ucY9XmLqkmf+MIS4Lf60qWeL wQ1RljGK9g0MqD0D+BxMslyfPiXxGYOyBxHg40d51+JtYaEfnUv1r5c/tJ32/oUSkHIZ EewP5aLHPuXw76qYYA/ATIQSr9DBufP/sG1Xy+SZMRFExmYD14nnU4FPpsAwOuCoQj5U MOetXZqeDncT7UOCaPyKV+5TksUwffRIQcf9ju3O2inStDYisPocYlB38DRNwZmSj7/7 hhuGf1mcSy+EONOKbk0VV7zCQdsBWCTUaSc5VGXEUxQA2e9AcZn1TcjJlecSQSUkX+t/ VE2Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:user-agent:references :message-id:in-reply-to:subject:cc:to:from:date; bh=4d1aeyfyR0LNY+RqhgLM37Ot4lIjij6XnuFdxBtNo9s=; b=waYuczn6l0xiJe9ONuORNTLqkdLNPSgxslS+vESRyveXkoDWfPVYGlWNN9ni4MJXqY JIgZXjmj/jnHFSIP7dxjAefcwTOrYmnsLqrMLEVLHM4N5EduICpMGTa7MS/DLGTgNGKq YZa/FuZxX9qJpAGVA2cR+mAD5UQVrWhNd4jbb9Y1ca3qEh1nlfWRURjGB9v3avD5bDFx E9/c2f5cXq8EKEPJZyjqTNrnlLQApprt1dX48fShJBRvSXzimsaox0TzFkS6Bsqs6j8D 3pqOgbVZNXl2CXz9eWXY3zZ8It/ymihZ5+GMsJOEYv0LK+kas+kvRgrra8dZiv+eZsZy Svqw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id r10si1259287edo.137.2020.05.20.03.39.52; Wed, 20 May 2020 03:40:15 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726868AbgETKhc (ORCPT + 99 others); Wed, 20 May 2020 06:37:32 -0400 Received: from a3.inai.de ([88.198.85.195]:47924 "EHLO a3.inai.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726224AbgETKhb (ORCPT ); Wed, 20 May 2020 06:37:31 -0400 Received: by a3.inai.de (Postfix, from userid 25121) id 76BFF593C1A70; Wed, 20 May 2020 12:37:25 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by a3.inai.de (Postfix) with ESMTP id 72BB36259D2B5; Wed, 20 May 2020 12:37:25 +0200 (CEST) Date: Wed, 20 May 2020 12:37:25 +0200 (CEST) From: Jan Engelhardt To: Sasha Levin cc: Daniel Vetter , Olof Johansson , Jerome Glisse , Jason Ekstrand , Alex Deucher , "Wilson, Chris" , "Syrjala, Ville" , Hawking Zhang , Tvrtko Ursulin , linux-hyperv@vger.kernel.org, Stephen Hemminger , Greg KH , Haiyang Zhang , Linux Kernel Mailing List , dri-devel , spronovo@microsoft.com, Wei Liu , Linux Fbdev development list , iourit@microsoft.com, "K. Y. Srinivasan" Subject: Re: [RFC PATCH 0/4] DirectX on Linux In-Reply-To: <20200519203608.GG33628@sasha-vm> Message-ID: References: <20200519163234.226513-1-sashal@kernel.org> <20200519203608.GG33628@sasha-vm> User-Agent: Alpine 2.22 (LSU 394 2020-01-19) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday 2020-05-19 22:36, Sasha Levin wrote: > >> - Why DX12 on linux? Looking at this feels like classic divide and > > There is a single usecase for this: WSL2 developer who wants to run > machine learning on his GPU. The developer is working on his laptop, > which is running Windows and that laptop has a single GPU that Windows > is using. It does not feel right conceptually. If the target is a Windows API (DX12/ML), why bother with Linux environments? Make it a Windows executable, thereby skipping the WSL translation layer and passthrough.