From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 4E0CE320CBA; Mon, 18 Aug 2025 13:42:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755524566; cv=none; b=dRHxnU9fNSYEvt7wRh5+9ws6D+7pBKecWrV8ImAjtoYReKJHvTEdhbFjB4FKal4gqkjayw0bzzedC+kxUwGB4iA0+1B2CZI0qX4FKpL4yw8EG8ELXW5zdpcDwXVFjkAfsoHh5X2FCQaqMNXgWDYaGcZohhxki9nf0X/4Q7u3wss= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755524566; c=relaxed/simple; bh=4Iy9ZGKqh9YSmMNU+R4l6RhTD0pmKATcaR6PqClgDjE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nhNxSPRrA7DCiOfyJK/0A0Bze1nqLW4NMgk8ou+ceDZLXnBsDPO5eHZ9gAKMs+O6MxY+cPHW3BJXzMOaqCmuHTA2aXR36BoxAruLW6XSWVcSDrbNkOOxzGUPvxpn6Kq3n2rcLVd9mophcH8h5fPd0MizeVsXEPQ9DzmgqOKZ9Xo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=UCKxIlxA; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="UCKxIlxA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C6494C4CEEB; Mon, 18 Aug 2025 13:42:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755524566; bh=4Iy9ZGKqh9YSmMNU+R4l6RhTD0pmKATcaR6PqClgDjE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UCKxIlxAZK5yb8Cvi/rhsmPyWJT4PJlWNn8tZ/ok6MVDeqttlQKCLpKWUNFOXfVJ7 JDgmVYemYQ9IWr8CBBD1wL2KzLLsGnsFD7pE3iFFzFTesymUabCq8wmSt8G8hu4la4 VyGZZij4Cw6/OuayyHamCcLOinzRo3PZZeyEvfAw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Mario Limonciello , Ivan Lipski , Daniel Wheeler , Alex Deucher Subject: [PATCH 6.15 512/515] drm/amd/display: Allow DCN301 to clear update flags Date: Mon, 18 Aug 2025 14:48:18 +0200 Message-ID: <20250818124518.144959499@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250818124458.334548733@linuxfoundation.org> References: <20250818124458.334548733@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ivan Lipski commit 2d418e4fd9f1eca7dfce80de86dd702d36a06a25 upstream. [Why & How] Not letting DCN301 to clear after surface/stream update results in artifacts when switching between active overlay planes. The issue is known and has been solved initially. See below: (https://gitlab.freedesktop.org/drm/amd/-/issues/3441) Fixes: f354556e29f4 ("drm/amd/display: limit clear_update_flags t dcn32 and above") Reviewed-by: Mario Limonciello Signed-off-by: Ivan Lipski Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/display/dc/core/dc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -5335,7 +5335,8 @@ bool dc_update_planes_and_stream(struct else ret = update_planes_and_stream_v2(dc, srf_updates, surface_count, stream, stream_update); - if (ret && dc->ctx->dce_version >= DCN_VERSION_3_2) + if (ret && (dc->ctx->dce_version >= DCN_VERSION_3_2 || + dc->ctx->dce_version == DCN_VERSION_3_01)) clear_update_flags(srf_updates, surface_count, stream); return ret;