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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 0A4A3C433F5 for ; Thu, 9 Sep 2021 12:14:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E9048610E9 for ; Thu, 9 Sep 2021 12:14:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243535AbhIIMQA (ORCPT ); Thu, 9 Sep 2021 08:16:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:47678 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344558AbhIIMG3 (ORCPT ); Thu, 9 Sep 2021 08:06:29 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 08DA561555; Thu, 9 Sep 2021 11:47:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1631188051; bh=5S9rxJwANp0e3k9J5kE6LC6lNjzHJmACQK9MxwK4GO8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rbn2ncKAzMznNLS4Zau+F0wtyIEZv4mDqEJV/+2oV3PUVsnnkv2TZe43YtlYyqwc1 n6ek8CP/ri0c34GWcX828DaiAGjo03qbMFYke5o+ReHjjyN2IESDmixxsg+i2VbCLn utxX2lE99lwLac1H5LT5shgwi7s6btaScE0qB5A1e9i5JjuXAddfj/EdYThv/710At m/OkxGz5gEhZFO76p551Qp0YylN58hztkq1ZU2S7jo5vSamachKhgS7UTY9nJfXrjH gd8MB9fUnHWpOIpxZhQqsaL4JBxjH50LKKVk4c5jz85jh288AGpfIZBJZWghFiqajh Nwm5lHN5Pz0bg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Oliver Logush , Rodrigo Siqueira , Alex Deucher , Sasha Levin , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.13 044/219] drm/amd/display: Fix timer_per_pixel unit error Date: Thu, 9 Sep 2021 07:43:40 -0400 Message-Id: <20210909114635.143983-44-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210909114635.143983-1-sashal@kernel.org> References: <20210909114635.143983-1-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: linux-kernel@vger.kernel.org From: Oliver Logush [ Upstream commit 23e55639b87fb16a9f0f66032ecb57060df6c46c ] [why] The units of the time_per_pixel variable were incorrect, this had to be changed for the code to properly function. [how] The change was very straightforward, only required one line of code to be changed where the calculation was done. Acked-by: Rodrigo Siqueira Signed-off-by: Oliver Logush Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c index 81f583733fa8..12e92f620483 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c @@ -2461,7 +2461,7 @@ void dcn20_set_mcif_arb_params( wb_arb_params->cli_watermark[k] = get_wm_writeback_urgent(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000; wb_arb_params->pstate_watermark[k] = get_wm_writeback_dram_clock_change(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000; } - wb_arb_params->time_per_pixel = 16.0 / context->res_ctx.pipe_ctx[i].stream->phy_pix_clk; /* 4 bit fraction, ms */ + wb_arb_params->time_per_pixel = 16.0 * 1000 / (context->res_ctx.pipe_ctx[i].stream->phy_pix_clk / 1000); /* 4 bit fraction, ms */ wb_arb_params->slice_lines = 32; wb_arb_params->arbitration_slice = 2; wb_arb_params->max_scaled_time = dcn20_calc_max_scaled_time(wb_arb_params->time_per_pixel, -- 2.30.2