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=-14.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY, 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 AD89CC43460 for ; Sat, 8 May 2021 02:28:54 +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 6B6F5610A2 for ; Sat, 8 May 2021 02:28:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6B6F5610A2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0BF366E84F; Sat, 8 May 2021 02:28:36 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1661F6E836 for ; Sat, 8 May 2021 02:28:32 +0000 (UTC) IronPort-SDR: T7ue84sSHHMUqWxZ8GHlHq/+N5a3PrN2HTnorBR5W9KXPwzDZTwclsIy5OXotAjXuCrcrul2Ip v+qex5U7huLA== X-IronPort-AV: E=McAfee;i="6200,9189,9977"; a="198933638" X-IronPort-AV: E=Sophos;i="5.82,282,1613462400"; d="scan'208";a="198933638" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 May 2021 19:28:29 -0700 IronPort-SDR: YdwSWWIyDn8k18lD0tYxi7DFH+QfrzfHz3Snnr4HWAE01VSxM9wBZ0MaFvr1490FqqMNbyd+DP DEPz+lpCATHw== X-IronPort-AV: E=Sophos;i="5.82,282,1613462400"; d="scan'208";a="533910060" Received: from mdroper-desk1.fm.intel.com ([10.1.27.168]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 May 2021 19:28:28 -0700 From: Matt Roper To: intel-gfx@lists.freedesktop.org Date: Fri, 7 May 2021 19:27:42 -0700 Message-Id: <20210508022820.780227-11-matthew.d.roper@intel.com> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20210508022820.780227-1-matthew.d.roper@intel.com> References: <20210508022820.780227-1-matthew.d.roper@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 10/48] drm/i915/xelpd: Support DP1.4 compression BPPs X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Vandita Kulkarni Support compression BPPs from bpc to uncompressed BPP -1. So far we have 8,10,12 as valid compressed BPPS now the support is extended. Cc: Manasi Navare Signed-off-by: Vandita Kulkarni Signed-off-by: Matt Roper --- drivers/gpu/drm/i915/display/intel_dp.c | 32 ++++++++++++++++++------- 1 file changed, 24 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index f163a669f40f..8ccb3c3888f7 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -109,6 +109,7 @@ bool intel_dp_is_edp(struct intel_dp *intel_dp) } static void intel_dp_unset_edid(struct intel_dp *intel_dp); +static int intel_dp_dsc_compute_bpp(struct intel_dp *intel_dp, u8 dsc_max_bpc); /* update sink rates from dpcd */ static void intel_dp_set_sink_rates(struct intel_dp *intel_dp) @@ -494,7 +495,8 @@ small_joiner_ram_size_bits(struct drm_i915_private *i915) static u16 intel_dp_dsc_get_output_bpp(struct drm_i915_private *i915, u32 link_clock, u32 lane_count, u32 mode_clock, u32 mode_hdisplay, - bool bigjoiner) + bool bigjoiner, + u32 pipe_bpp) { u32 bits_per_pixel, max_bpp_small_joiner_ram; int i; @@ -519,6 +521,7 @@ static u16 intel_dp_dsc_get_output_bpp(struct drm_i915_private *i915, drm_dbg_kms(&i915->drm, "Max small joiner bpp: %u\n", max_bpp_small_joiner_ram); + /* * Greatest allowed DSC BPP = MIN (output BPP from available Link BW * check, output bpp from small joiner RAM check) @@ -541,12 +544,17 @@ static u16 intel_dp_dsc_get_output_bpp(struct drm_i915_private *i915, return 0; } - /* Find the nearest match in the array of known BPPs from VESA */ - for (i = 0; i < ARRAY_SIZE(valid_dsc_bpp) - 1; i++) { - if (bits_per_pixel < valid_dsc_bpp[i + 1]) - break; + /* From XE_LPD onwards we support from bpc upto uncompressed bpp-1 BPPs */ + if (DISPLAY_VER(i915) >= 13) { + bits_per_pixel = min(bits_per_pixel, pipe_bpp - 1); + } else { + /* Find the nearest match in the array of known BPPs from VESA */ + for (i = 0; i < ARRAY_SIZE(valid_dsc_bpp) - 1; i++) { + if (bits_per_pixel < valid_dsc_bpp[i + 1]) + break; + } + bits_per_pixel = valid_dsc_bpp[i]; } - bits_per_pixel = valid_dsc_bpp[i]; /* * Compressed BPP in U6.4 format so multiply by 16, for Gen 11, @@ -780,6 +788,12 @@ intel_dp_mode_valid(struct drm_connector *connector, */ if (DISPLAY_VER(dev_priv) >= 10 && drm_dp_sink_supports_dsc(intel_dp->dsc_dpcd)) { + /* + * TBD pass the connector BPC, + * for now U8_MAX so that max BPC on that platform would be picked + */ + int pipe_bpp = intel_dp_dsc_compute_bpp(intel_dp, U8_MAX); + if (intel_dp_is_edp(intel_dp)) { dsc_max_output_bpp = drm_edp_dsc_sink_output_bpp(intel_dp->dsc_dpcd) >> 4; @@ -793,7 +807,8 @@ intel_dp_mode_valid(struct drm_connector *connector, max_lanes, target_clock, mode->hdisplay, - bigjoiner) >> 4; + bigjoiner, + pipe_bpp) >> 4; dsc_slice_count = intel_dp_dsc_get_slice_count(intel_dp, target_clock, @@ -1240,7 +1255,8 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp, pipe_config->lane_count, adjusted_mode->crtc_clock, adjusted_mode->crtc_hdisplay, - pipe_config->bigjoiner); + pipe_config->bigjoiner, + pipe_bpp); dsc_dp_slice_count = intel_dp_dsc_get_slice_count(intel_dp, adjusted_mode->crtc_clock, -- 2.25.4 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx