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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 546DCC433F5 for ; Mon, 14 Feb 2022 10:07:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345687AbiBNKGm (ORCPT ); Mon, 14 Feb 2022 05:06:42 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:54578 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345741AbiBNKBx (ORCPT ); Mon, 14 Feb 2022 05:01:53 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8824F2019D; Mon, 14 Feb 2022 01:48:09 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 24CBA61296; Mon, 14 Feb 2022 09:48:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0ED9AC340E9; Mon, 14 Feb 2022 09:48:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1644832088; bh=oS2lkPCp3aLbjy4x18EkIQmiDK4N9sOMmcJlDMqhD+0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hXwf9ty7D0l5Yh4l1w4m6h+1wTuZxwIBa/yFUyt3dqMCPdGh+nWKvPfpCULaG1Chh Z5M9zk9VdpWSzA/YwgxkSuMsHUn/qTnNlBylc6Vh4sA2K8LbApW6+XKA5H4SfvFpgH qaAHQC2IlH2WZ5GQg4SOJMXqOK5pyu3CsR+K+krk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Harry Wentland , Alex Deucher Subject: [PATCH 5.15 076/172] drm/amdgpu/display: change pipe policy for DCN 2.0 Date: Mon, 14 Feb 2022 10:25:34 +0100 Message-Id: <20220214092509.031262694@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220214092506.354292783@linuxfoundation.org> References: <20220214092506.354292783@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Alex Deucher commit 6e7545ddb13416fd200e0b91c0acfd0404e2e27b upstream. Fixes hangs on driver load with multiple displays on DCN 2.0 parts. Bug: https://bugzilla.kernel.org/show_bug.cgi?id=215511 Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1877 Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1886 Fixes: ee2698cf79cc ("drm/amd/display: Changed pipe split policy to allow for multi-display pipe split") Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c @@ -1067,7 +1067,7 @@ static const struct dc_debug_options deb .timing_trace = false, .clock_trace = true, .disable_pplib_clock_request = true, - .pipe_split_policy = MPC_SPLIT_DYNAMIC, + .pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP, .force_single_disp_pipe_split = false, .disable_dcc = DCC_ENABLE, .vsr_support = true,