From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0F6892ED84A for ; Mon, 5 Oct 2026 08:06:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791187594; cv=none; b=OYNIjVNKLlGr7v9HNBHhPlbfAKBTARcvDfT7Gh4T4L7+jmsiqTPTCkKzaXAUlkoqo/wisFScozzlCPL78ywPP96qTPq91hCu5hbBwZfm/VPdleaTTudWfbp8tK8TwTJ2oCVRgGi/H/3XxY4jxRXU9RdQ6YCq0eleQYvbxhbN6MI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791187594; c=relaxed/simple; bh=7yd8CNILCymOZ1zf2jhhab4pJuFLMJo4omaLGUqffBk=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=Akwsmt1GKeWqdQUGr2xTynG/p0lJRCt4PASduKecG/Her5FCzRWj6HcymAiKbKwts13vGdgr5RvZL7ITMr+j+p7RtNk9B5rsKOjc8L7jEH7y4FlAfXli9enNiRB6pcQLs8wct8AF1MoPCKfdIbC3xfxSj95v2TrafPiV+GRQ3oE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ggqekFKK; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ggqekFKK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3E1011F000FF; Mon, 5 Oct 2026 08:06:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1791187592; bh=cir2r3HePAn70MM2B0tA+JUnDYhMGv0XrECw8irRGC4=; h=Subject:To:Cc:From:Date; b=ggqekFKKJnzubOLpQy5GU6kfGNuaj52cM6IZpxkTSppyn+nv9Z2DQQFPAFNpsmSP/ ruzl2WjshkacDQ8hZ4q1KTnHh5WkQh30JeZ62sin3kSPx/eEwg+UTX2gvxxRaqoTWv 8vfD/vJlNEAPmnfGCPP60ThESPt9jUQb+zMPygqc= Subject: FAILED: patch "[PATCH] drm/amd/display: Fix fast updates on DCE 8.1" failed to apply to 6.6-stable tree To: timur.kristof@gmail.com,alexander.deucher@amd.com,mario.limonciello@amd.com Cc: From: Date: Mon, 05 Oct 2026 10:06:26 +0200 Message-ID: <2026100526-romp-swizzle-c0a7@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.6-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 . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 687d31ea9ac76b299817060fa1e5582d6c752ae0 # git commit -s git send-email --to '' --in-reply-to '2026100526-romp-swizzle-c0a7@gregkh' --subject-prefix 'PATCH 6.6.y' 'HEAD^..' Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 687d31ea9ac76b299817060fa1e5582d6c752ae0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Timur=20Krist=C3=B3f?= Date: Wed, 23 Sep 2026 14:20:32 +0200 Subject: [PATCH] drm/amd/display: Fix fast updates on DCE 8.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit DCE8 should use legacy fast updates. This was already set for DCE 8.0 and 8.3, but it seems that DCE 8.1 (found in Kaveri chips) was forgotten. This fix should be backported to all kernel versions that have "Refactor fast update to use new HWSS build sequence", but this patch won't apply cleanly to older kernels due to another refactor in "Remove dc param from check_update". Fixes: 0baae6246307 ("drm/amd/display: Refactor fast update to use new HWSS build sequence") Fixes: 9ec11bb842b6 ("drm/amd/display: Remove dc param from check_update") Signed-off-by: Timur Kristóf Reviewed-by: Mario Limonciello Link: https://patch.msgid.link/20260923122033.1046651-2-timur.kristof@gmail.com Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher (cherry picked from commit 57605379559e3b5044c8274a1010ec658e5e73af) Cc: stable@vger.kernel.org diff --git a/drivers/gpu/drm/amd/display/dc/resource/dce80/dce80_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dce80/dce80_resource.c index 26820d35478a..2f4de697ec4b 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dce80/dce80_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dce80/dce80_resource.c @@ -1148,6 +1148,8 @@ static bool dce81_construct( dc->caps.max_cursor_size = 128; dc->caps.min_horizontal_blanking_period = 80; dc->caps.is_apu = true; + dc->debug = debug_defaults; + dc->check_config = config_defaults; /************************************************* * Create resources *