From patchwork Tue Sep 12 16:37:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Golani, Mitulkumar Ajitkumar" X-Patchwork-Id: 13381950 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 B82CBCA0EEB for ; Tue, 12 Sep 2023 16:43:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E893110E446; Tue, 12 Sep 2023 16:43:10 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6C6F210E445; Tue, 12 Sep 2023 16:43:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1694536988; x=1726072988; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=e7LHg9nYrvWMHZxedYwBKvv/wcrPKiHK4vtXPbwvz3E=; b=QheiJu+4O3Hxn5zLsC6gl0ndjF6TBsONNda/tiPjj7dKJULcC6r5wOtm Anq/HqhFHcqHupcKhE8SqehEib9tXNruYWA1JLTakISM6NseXik75eEfr F+2ohA+EnMdZnTUcbH2rc5LslV4z6p2KWdbOBXrurxjI12qgDAKEdkT60 SmXOpCbR1sYgDYJniaYuGo5KDoBaJ9yis1A7GulYnN8oqNIBoSXDe3QAs ICMNQ7mAImjYVbm/qnbG9ksM/DQxybEb6wNg5SBFIZIY0NYIT3FqxYS2B BuDO4q03uZPelHN1BGwVSoBlBzN4FlR1uUXwf4wMKh/u0vjf0ffhAsGr+ A==; X-IronPort-AV: E=McAfee;i="6600,9927,10831"; a="442446858" X-IronPort-AV: E=Sophos;i="6.02,139,1688454000"; d="scan'208";a="442446858" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Sep 2023 09:43:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10831"; a="743775734" X-IronPort-AV: E=Sophos;i="6.02,139,1688454000"; d="scan'208";a="743775734" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by orsmga002.jf.intel.com with ESMTP; 12 Sep 2023 09:43:05 -0700 From: Mitul Golani To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Subject: [PATCH 4/8] drm/i915/audio : Consider fractional vdsc bpp while computing tu_data Date: Tue, 12 Sep 2023 22:07:31 +0530 Message-Id: <20230912163735.1075868-5-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230912163735.1075868-1-mitulkumar.ajitkumar.golani@intel.com> References: <20230912163735.1075868-1-mitulkumar.ajitkumar.golani@intel.com> MIME-Version: 1.0 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: jani.nikula@intel.com, suraj.kandpal@intel.com, ankit.k.nautiyal@intel.com, swati2.sharma@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Ankit Nautiyal MTL+ supports fractional compressed bits_per_pixel, with precision of 1/16. This compressed bpp is stored in U6.4 format. Accommodate the precision during calculation of transfer unit data for hblank_early calculation. v2: -Fixed tu_data calculation while dealing with U6.4 format. (Stan) Signed-off-by: Ankit Nautiyal Reviewed-by: Suraj Kandpal --- drivers/gpu/drm/i915/display/intel_audio.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c index 4f1db1581316..3b08be54ce4f 100644 --- a/drivers/gpu/drm/i915/display/intel_audio.c +++ b/drivers/gpu/drm/i915/display/intel_audio.c @@ -522,25 +522,25 @@ static unsigned int calc_hblank_early_prog(struct intel_encoder *encoder, unsigned int link_clks_available, link_clks_required; unsigned int tu_data, tu_line, link_clks_active; unsigned int h_active, h_total, hblank_delta, pixel_clk; - unsigned int fec_coeff, cdclk, vdsc_bpp; + unsigned int fec_coeff, cdclk, vdsc_bppx16; unsigned int link_clk, lanes; unsigned int hblank_rise; h_active = crtc_state->hw.adjusted_mode.crtc_hdisplay; h_total = crtc_state->hw.adjusted_mode.crtc_htotal; pixel_clk = crtc_state->hw.adjusted_mode.crtc_clock; - vdsc_bpp = intel_fractional_bpp_from_x16(crtc_state->dsc.compressed_bpp_x16); + vdsc_bppx16 = crtc_state->dsc.compressed_bpp_x16; cdclk = i915->display.cdclk.hw.cdclk; /* fec= 0.972261, using rounding multiplier of 1000000 */ fec_coeff = 972261; link_clk = crtc_state->port_clock; lanes = crtc_state->lane_count; - drm_dbg_kms(&i915->drm, "h_active = %u link_clk = %u :" - "lanes = %u vdsc_bpp = %u cdclk = %u\n", - h_active, link_clk, lanes, vdsc_bpp, cdclk); + drm_dbg_kms(&i915->drm, + "h_active = %u link_clk = %u : lanes = %u vdsc_bppx16 = %u cdclk = %u\n", + h_active, link_clk, lanes, vdsc_bppx16, cdclk); - if (WARN_ON(!link_clk || !pixel_clk || !lanes || !vdsc_bpp || !cdclk)) + if (WARN_ON(!link_clk || !pixel_clk || !lanes || !vdsc_bppx16 || !cdclk)) return 0; link_clks_available = (h_total - h_active) * link_clk / pixel_clk - 28; @@ -552,8 +552,8 @@ static unsigned int calc_hblank_early_prog(struct intel_encoder *encoder, hblank_delta = DIV64_U64_ROUND_UP(mul_u32_u32(5 * (link_clk + cdclk), pixel_clk), mul_u32_u32(link_clk, cdclk)); - tu_data = div64_u64(mul_u32_u32(pixel_clk * vdsc_bpp * 8, 1000000), - mul_u32_u32(link_clk * lanes, fec_coeff)); + tu_data = div64_u64(mul_u32_u32(pixel_clk * vdsc_bppx16 * 8, 1000000), + mul_u32_u32(link_clk * lanes * 16, fec_coeff)); tu_line = div64_u64(h_active * mul_u32_u32(link_clk, fec_coeff), mul_u32_u32(64 * pixel_clk, 1000000)); link_clks_active = (tu_line - 1) * 64 + tu_data;