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 322B7D36129 for ; Wed, 6 Nov 2024 02:14:53 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D904510E656; Wed, 6 Nov 2024 02:14:52 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="DyyoZYPF"; dkim-atps=neutral Received: from nyc.source.kernel.org (nyc.source.kernel.org [147.75.193.91]) by gabe.freedesktop.org (Postfix) with ESMTPS id 06FC010E654; Wed, 6 Nov 2024 02:14:52 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 23895A416F5; Wed, 6 Nov 2024 02:12:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2516DC4CECF; Wed, 6 Nov 2024 02:14:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1730859290; bh=P2id+Gw2WOcfKdVpLPLdbz2/z6zU4UVmt7vCNRcdu5Y=; h=From:To:Cc:Subject:Date:From; b=DyyoZYPFweVzH6gYO49j2bHiLQ6miHraSUZuy85KXX5UsELMxHMEpbh2pNJZTqnsD qV05dIosfL2kPNELivTElKdt5LfYq9l/Z75beFOPfIGRQyPvO3tK1OfEqoxd5Gn3o+ 9vQAi+LimbM5qaXMO6qRKRjsVVDblb7d1D+6v2a8AihEqyAOctHuoXZCAxmAX7T5sK 8i3mVq4DRI+Uiaeu8ATetpIUh3I9zujyhAB7lBvOJt0JOqBIGNS5rtTA6emHT/KVaV EXpPxbBrzcKrhtc819Yt2BvwSU3u2FG6VRxe+YJdVLQOzmIDEr6AqogM1xc6CWcYxP Ret+wrakWr81Q== From: Sasha Levin To: stable@vger.kernel.org, Ovidiu.Bunea@amd.com Cc: Mario Limonciello , Alex Deucher , Nicholas Kazlauskas , Tom Chung , Daniel Wheeler , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: FAILED: Patch "Revert "drm/amd/display: update DML2 policy EnhancedPrefetchScheduleAccelerationFinal DCN35"" failed to apply to v4.19-stable tree Date: Tue, 5 Nov 2024 21:14:47 -0500 Message-ID: <20241106021447.184517-1-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 X-Patchwork-Hint: ignore X-stable: review Content-Transfer-Encoding: 8bit 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" The patch below does not apply to the v4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . Thanks, Sasha ------------------ original commit in Linus's tree ------------------ >From 1b6063a57754eae5705753c01e78dc268b989038 Mon Sep 17 00:00:00 2001 From: Ovidiu Bunea Date: Fri, 11 Oct 2024 11:12:19 -0400 Subject: [PATCH] Revert "drm/amd/display: update DML2 policy EnhancedPrefetchScheduleAccelerationFinal DCN35" This reverts commit 9dad21f910fc ("drm/amd/display: update DML2 policy EnhancedPrefetchScheduleAccelerationFinal DCN35") [why & how] The offending commit exposes a hang with lid close/open behavior. Both issues seem to be related to ODM 2:1 mode switching, so there is another issue generic to that sequence that needs to be investigated. Cc: Mario Limonciello Cc: Alex Deucher Reviewed-by: Nicholas Kazlauskas Signed-off-by: Ovidiu Bunea Signed-off-by: Tom Chung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher (cherry picked from commit 68bf95317ebf2cfa7105251e4279e951daceefb7) Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/display/dc/dml2/dml2_policy.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_policy.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_policy.c index 11c904ae29586..c4c52173ef224 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_policy.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_policy.c @@ -303,6 +303,7 @@ void build_unoptimized_policy_settings(enum dml_project_id project, struct dml_m if (project == dml_project_dcn35 || project == dml_project_dcn351) { policy->DCCProgrammingAssumesScanDirectionUnknownFinal = false; + policy->EnhancedPrefetchScheduleAccelerationFinal = 0; policy->AllowForPStateChangeOrStutterInVBlankFinal = dml_prefetch_support_uclk_fclk_and_stutter_if_possible; /*new*/ policy->UseOnlyMaxPrefetchModes = 1; } -- 2.43.0