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 2B4DAC25B0C for ; Thu, 11 Aug 2022 15:31:23 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AB576B436F; Thu, 11 Aug 2022 15:31:17 +0000 (UTC) Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by gabe.freedesktop.org (Postfix) with ESMTPS id EA6072B9EC; Thu, 11 Aug 2022 15:30:58 +0000 (UTC) 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 ams.source.kernel.org (Postfix) with ESMTPS id 941C2B8215D; Thu, 11 Aug 2022 15:30:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 89671C433D6; Thu, 11 Aug 2022 15:30:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1660231856; bh=mNT78fvZUN02mlXBFilWDP/18n51R5iWoqARi/+ZHuY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=e12vZcykQGW3Pra5E8uhciMfOxbuYY7zBoRms3b3H5EK/RjXqs/v+GmqMK1DYKuc2 QennEGSZXO35IPzKaDID9OosClmj1EXFGpp+oWs0GUFPNIr8f1U43VImRfDq/O7ht7 ZaTVxb56UVy7iqCuLqHKc73Kmfrt7iv0O5kbRKIyYeEraABztsDLjzG67SbA1j7ucr ozA0AfP/kS348I+imTYGoRdVxIhVwuZqO1fy5INawgUIEd10wVaz1+nnJa+mQPehlh LW+6Do/DNo0nl/nADpr0SnKQHW47pNGGjesDa2oaCtUckBrWMp1MA0ae9ttvt/Pc/m uKxZSim7f4d5g== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 5.19 017/105] drm/amd/display: Fix dpp dto for disabled pipes Date: Thu, 11 Aug 2022 11:27:01 -0400 Message-Id: <20220811152851.1520029-17-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220811152851.1520029-1-sashal@kernel.org> References: <20220811152851.1520029-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore 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: , Cc: Aric.Cyr@amd.com, airlied@linux.ie, Rodrigo.Siqueira@amd.com, dri-devel@lists.freedesktop.org, Yi-Ling.Chen2@amd.com, Hamza Mahfooz , isabbasso@riseup.net, Jun.Lei@amd.com, Jimmy.Kizito@amd.com, Sasha Levin , gabe.teeger@amd.com, wenjing.liu@amd.com, amd-gfx@lists.freedesktop.org, Jerry.Zuo@amd.com, harry.wentland@amd.com, sunpeng.li@amd.com, Duncan Ma , mwen@igalia.com, Daniel Wheeler , Sungjoon.Kim@amd.com, Hansen Dsouza , Xinhui.Pan@amd.com, Nicholas Kazlauskas , Dmytro Laktyushkin , daniel@ffwll.ch, Alex Deucher , christian.koenig@amd.com Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" 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 ec6aa8d8b251..8b2c15a3cd92 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