From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ie0-f180.google.com (mail-ie0-f180.google.com [209.85.223.180]) by kanga.kvack.org (Postfix) with ESMTP id 1C62A6B0035 for ; Tue, 22 Jul 2014 05:21:14 -0400 (EDT) Received: by mail-ie0-f180.google.com with SMTP id at20so7602632iec.25 for ; Tue, 22 Jul 2014 02:21:13 -0700 (PDT) Received: from mail-ie0-x231.google.com (mail-ie0-x231.google.com [2607:f8b0:4001:c03::231]) by mx.google.com with ESMTPS id um8si397581icb.69.2014.07.22.02.21.12 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 22 Jul 2014 02:21:12 -0700 (PDT) Received: by mail-ie0-f177.google.com with SMTP id at20so7496204iec.8 for ; Tue, 22 Jul 2014 02:21:12 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <53CE1E9C.8020105@amd.com> References: <20140720174652.GE3068@gmail.com> <53CD0961.4070505@amd.com> <53CD17FD.3000908@vodafone.de> <20140721152511.GW15237@phenom.ffwll.local> <20140721155851.GB4519@gmail.com> <20140721170546.GB15237@phenom.ffwll.local> <53CD4DD2.10906@amd.com> <53CD5ED9.2040600@amd.com> <20140721190306.GB5278@gmail.com> <20140722072851.GH15237@phenom.ffwll.local> <53CE1E9C.8020105@amd.com> Date: Tue, 22 Jul 2014 11:21:12 +0200 Message-ID: Subject: Re: [PATCH v2 00/25] AMDKFD kernel driver From: Daniel Vetter Content-Type: text/plain; charset=UTF-8 Sender: owner-linux-mm@kvack.org List-ID: To: Oded Gabbay Cc: Jerome Glisse , =?UTF-8?Q?Christian_K=C3=B6nig?= , David Airlie , Alex Deucher , Andrew Morton , John Bridgman , Joerg Roedel , Andrew Lewycky , =?UTF-8?Q?Michel_D=C3=A4nzer?= , Ben Goz , Alexey Skidanov , Evgeny Pinchuk , "linux-kernel@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , linux-mm On Tue, Jul 22, 2014 at 10:19 AM, Oded Gabbay wrote: >> Exactly, just prevent userspace from submitting more. And if you have >> misbehaving userspace that submits too much, reset the gpu and tell it >> that you're sorry but won't schedule any more work. > > I'm not sure how you intend to know if a userspace misbehaves or not. Can > you elaborate ? Well that's mostly policy, currently in i915 we only have a check for hangs, and if userspace hangs a bit too often then we stop it. I guess you can do that with the queue unmapping you've describe in reply to Jerome's mail. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org