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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3D5F3C43331 for ; Mon, 11 Nov 2019 18:56:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0974D20659 for ; Mon, 11 Nov 2019 18:56:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573498608; bh=CKpL9Mzfne8s7/6HlpgrHeezbAsQHaYqTZTaJ60r60Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=GkPCoM3gYcENzc4XRHiL++V2ecRX+5EjChBA/8ng6qd1nbWijAwB+p5Wlec+liF9C jP1LM2ohzGNiFPasrvfG7G7rW1M2ViFWbelVLyCJz2RzLHM9abhZmZ6DKZaC944nLZ 5JT/UrtlbRZgbfYSyVRg3Z2nXCiZTyq8fI7JJgJI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729941AbfKKS4q (ORCPT ); Mon, 11 Nov 2019 13:56:46 -0500 Received: from mail.kernel.org ([198.145.29.99]:55282 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729594AbfKKS4n (ORCPT ); Mon, 11 Nov 2019 13:56:43 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BF86620818; Mon, 11 Nov 2019 18:56:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573498602; bh=CKpL9Mzfne8s7/6HlpgrHeezbAsQHaYqTZTaJ60r60Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OT6giaG3TpF+XlJLlNVv3G5YjrQSjCzmlMH94CnGhnGEyQjGNGkK3IUjFdYv5W+Ly HPukxftoA59MImMO1W57j6pE7Rvg88PTYnd0JAFSEwGv8c9A+Gr+6bPObkWnbnQ8Tx pfkleUBNCSuPheTSB87Ri/2JYT577ZZU5xBVaT1A= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jun Lei , Aric Cyr , Leo Li , Alex Deucher , Sasha Levin Subject: [PATCH 5.3 168/193] drm/amd/display: add 50us buffer as WA for pstate switch in active Date: Mon, 11 Nov 2019 19:29:10 +0100 Message-Id: <20191111181513.523629386@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191111181459.850623879@linuxfoundation.org> References: <20191111181459.850623879@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jun Lei [ Upstream commit 7c37d399c2b84d4b79de4d512a38373f1d71ab90 ] Signed-off-by: Jun Lei Reviewed-by: Aric Cyr Acked-by: Leo Li Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c index 649883777f62a..6c6c486b774a4 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c @@ -2577,7 +2577,8 @@ static void dml20_DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPer mode_lib->vba.MinActiveDRAMClockChangeMargin + mode_lib->vba.DRAMClockChangeLatency; - if (mode_lib->vba.MinActiveDRAMClockChangeMargin > 0) { + if (mode_lib->vba.MinActiveDRAMClockChangeMargin > 50) { + mode_lib->vba.DRAMClockChangeWatermark += 25; mode_lib->vba.DRAMClockChangeSupport[0][0] = dm_dram_clock_change_vactive; } else { if (mode_lib->vba.SynchronizedVBlank || mode_lib->vba.NumberOfActivePlanes == 1) { -- 2.20.1