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=-16.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 98EE4C43331 for ; Wed, 17 Mar 2021 00:57:45 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 3C44E64FBD for ; Wed, 17 Mar 2021 00:57:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3C44E64FBD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 53A2C6E47E; Wed, 17 Mar 2021 00:57:44 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3201089B57; Wed, 17 Mar 2021 00:57:43 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 1BD7C64F9B; Wed, 17 Mar 2021 00:57:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1615942663; bh=Vnr7MAJTIlC5HrBZBnBkc8Elfqq+p/iixIUF9T1HFtM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RFWVjSZ93BRpW/e1CqDdvUbwHO+tQ8EHzO/e5O7LBDDBxLf0ElaNq3ZnUznc2wfaP WCgI+bz3kN6zXOfIJAVOj8mnY7bU4/63Ab5u74MhrTZUh8TcchBp2fzFqI69by6F8l HtItuoctyLwmaei9BzmyXRfKpIHWaVEGMLF161ywnulJP5DgUNhegye97r+ctmTIHG KZ6SKDrdXCSAXlOunvHjafxxRjYXPLysX5CQZ5IMw/aN5bhSYoPAEIkI6g1AZfyBod 55UKmJpO9py1ZQ46rC9TRcSZoOXPRb2pZFz0y52jp70t2vJCrRdN6Fyz2XN0of7Om1 Rk33I1so7i9nQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 5.10 40/54] drm/amd/display: Revert dram_clock_change_latency for DCN2.1 Date: Tue, 16 Mar 2021 20:56:39 -0400 Message-Id: <20210317005654.724862-40-sashal@kernel.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210317005654.724862-1-sashal@kernel.org> References: <20210317005654.724862-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sasha Levin , Sung Lee , Eryk Brol , Haonan Wang , amd-gfx@lists.freedesktop.org, Daniel Wheeler , dri-devel@lists.freedesktop.org, Alex Deucher Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Sung Lee [ Upstream commit b0075d114c33580f5c9fa9cee8e13d06db41471b ] [WHY & HOW] Using values provided by DF for latency may cause hangs in multi display configurations. Revert change to previous value. Tested-by: Daniel Wheeler Signed-off-by: Sung Lee Reviewed-by: Haonan Wang Acked-by: Eryk Brol Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c index 4e2dcf259428..b2b1e3664f28 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c @@ -295,7 +295,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_1_soc = { .num_banks = 8, .num_chans = 4, .vmm_page_size_bytes = 4096, - .dram_clock_change_latency_us = 11.72, + .dram_clock_change_latency_us = 23.84, .return_bus_width_bytes = 64, .dispclk_dppclk_vco_speed_mhz = 3600, .xfc_bus_transport_time_us = 4, -- 2.30.1 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel