From mboxrd@z Thu Jan 1 00:00:00 1970 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 5F043D715E0 for ; Sat, 24 Jan 2026 09:41:23 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C9C2A10E316; Sat, 24 Jan 2026 09:41:22 +0000 (UTC) Received: from h5.fbrelay.privateemail.com (h5.fbrelay.privateemail.com [162.0.218.228]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5DAB510EB02; Fri, 23 Jan 2026 14:26:35 +0000 (UTC) Received: from MTA-13-4.privateemail.com (mta-13-1.privateemail.com [198.54.122.107]) (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 h5.fbrelay.privateemail.com (Postfix) with ESMTPSA id 4dyKxM24g9z2xGP; Fri, 23 Jan 2026 14:26:31 +0000 (UTC) Received: from mta-13.privateemail.com (localhost [127.0.0.1]) by mta-13.privateemail.com (Postfix) with ESMTP id 4dyKxJ64Jnz3hhTT; Fri, 23 Jan 2026 09:26:28 -0500 (EST) Received: from hal-station.localdomain (bras-base-toroon4332w-grc-44-142-112-152-160.dsl.bell.ca [142.112.152.160]) by mta-13.privateemail.com (Postfix) with ESMTPA; Fri, 23 Jan 2026 09:26:00 -0500 (EST) Date: Fri, 23 Jan 2026 09:25:57 -0500 From: Hamza Mahfooz To: Timur =?iso-8859-1?Q?Krist=F3f?= Cc: dri-devel@lists.freedesktop.org, Alex Deucher , Christian =?iso-8859-1?Q?K=F6nig?= , David Airlie , Simona Vetter , Harry Wentland , Leo Li , Rodrigo Siqueira , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Sunil Khatri , Lijo Lazar , Ce Sun , Ivan Lipski , Kenneth Feng , Alex Hung , Tom Chung , Melissa Wen , Michel =?iso-8859-1?Q?D=E4nzer?= , Fangzhi Zuo , amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] drm/amdgpu: implement page_flip_timeout() support Message-ID: References: <20260123000537.2450496-1-someguy@effective-light.com> <20260123000537.2450496-2-someguy@effective-light.com> <10030872.eNJFYEL58v@timur-hyperion> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <10030872.eNJFYEL58v@timur-hyperion> X-Virus-Scanned: ClamAV using ClamSMTP X-Rspamd-Queue-Id: 4dyKxM24g9z2xGP X-Mailman-Approved-At: Sat, 24 Jan 2026 09:41:19 +0000 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" On Fri, Jan 23, 2026 at 12:20:30PM +0100, Timur Kristóf wrote: > MODE2 reset _is_ a full reset on APUs, it resets everything but just doesn't > lose the RAM contents. Also note that MODE2 reset is not supported on > dedicated GPUs, so this will likely trigger a full reset for those. > > Can you say how you tested this? I'd be happy to test it myself too. Unfortunately, I don't have a reliable way to reproduce timeouts. Though, that machine usually hangs if I leave it idle overnight and forget to turn off the display (I have DPMS disabled). So, I just let nature run its course, I guess you can say and checked dmesg in the morning to find that it had reset and was still usable.