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 40803C19F2A for ; Thu, 11 Aug 2022 15:53:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234382AbiHKPxc (ORCPT ); Thu, 11 Aug 2022 11:53:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36752 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236797AbiHKPwt (ORCPT ); Thu, 11 Aug 2022 11:52:49 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4557997D6F; Thu, 11 Aug 2022 08:44:23 -0700 (PDT) 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 D7587616DE; Thu, 11 Aug 2022 15:44:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 13E2BC433C1; Thu, 11 Aug 2022 15:44:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1660232662; bh=lNmtDLIAAiL3OFFYkzeWZzx9f+FhqJ2Knhh21WF6OUM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UuN7KA5ay2FrIrO5TcUDrpAWmHzJO/bhZY2VbMMf3JRnLhFY8WkTa384OgWXX2oMp ea8qp9sRAUkG3+3QKBwbUGYIErDm+yFzZM+shBg5IcqAORjnWZQo0evgAYturhzFMP c+Io8L6fuX3AKd4vohWX9o8zDwgAUgZTxzjz1mem0mpjljdLpfv1f2UN3Cm5PzRGEC emnjtFGN8VhVxwQ4ACr81ovTiBLXRjx62jKYRKuoAQOnRSG/OtVSrQ2efwn1MJzcbt BaqExrvCLpIAXg7dHAwzYXGmetRhgGbERRLx+T8uF7f4a3Mh/6gWnvtHC2GFkDKLdc eBsYkilhQvw+A== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Duncan Ma , Dmytro Laktyushkin , Nicholas Kazlauskas , Hansen Dsouza , Hamza Mahfooz , Daniel Wheeler , Alex Deucher , Sasha Levin , harry.wentland@amd.com, sunpeng.li@amd.com, Rodrigo.Siqueira@amd.com, christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@linux.ie, daniel@ffwll.ch, Aric.Cyr@amd.com, Jun.Lei@amd.com, mwen@igalia.com, wenjing.liu@amd.com, Yi-Ling.Chen2@amd.com, Jimmy.Kizito@amd.com, Jerry.Zuo@amd.com, gabe.teeger@amd.com, Sungjoon.Kim@amd.com, isabbasso@riseup.net, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.18 16/93] drm/amd/display: Fix dpp dto for disabled pipes Date: Thu, 11 Aug 2022 11:41:10 -0400 Message-Id: <20220811154237.1531313-16-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220811154237.1531313-1-sashal@kernel.org> References: <20220811154237.1531313-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Duncan Ma [ Upstream commit d4965c53b95d7533dfc2309d2fc25838bd33220e ] [Why] When switching from 1 pipe to 4to1 mpc combine, DppDtoClk aren't enabled for the disabled pipes pior to programming the pipes. Upon optimizing bandwidth, DppDto are enabled causing intermittent underflow. [How] Update dppclk dto whenever pipe are flagged to enable. Reviewed-by: Dmytro Laktyushkin Reviewed-by: Nicholas Kazlauskas Reviewed-by: Hansen Dsouza Acked-by: Hamza Mahfooz Signed-off-by: Duncan Ma Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c index b627c41713cc..76decaed5acd 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c @@ -1412,11 +1412,15 @@ static void dcn20_update_dchubp_dpp( struct hubp *hubp = pipe_ctx->plane_res.hubp; struct dpp *dpp = pipe_ctx->plane_res.dpp; struct dc_plane_state *plane_state = pipe_ctx->plane_state; + struct dccg *dccg = dc->res_pool->dccg; bool viewport_changed = false; if (pipe_ctx->update_flags.bits.dppclk) dpp->funcs->dpp_dppclk_control(dpp, false, true); + if (pipe_ctx->update_flags.bits.enable) + dccg->funcs->update_dpp_dto(dccg, dpp->inst, pipe_ctx->plane_res.bw.dppclk_khz); + /* TODO: Need input parameter to tell current DCHUB pipe tie to which OTG * VTG is within DCHUBBUB which is commond block share by each pipe HUBP. * VTG is 1:1 mapping with OTG. Each pipe HUBP will select which VTG -- 2.35.1