From patchwork Thu Aug 17 14:24:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Nautiyal, Ankit K" X-Patchwork-Id: 13356595 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 AF668C2FC2E for ; Thu, 17 Aug 2023 14:31:28 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D349110E4D3; Thu, 17 Aug 2023 14:31:26 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id DFB8D10E4B5; Thu, 17 Aug 2023 14:30:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1692282650; x=1723818650; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=yTAMEuLPMNlpCiEhaka+C/fEIUopsI4yJ8Pil6gNPso=; b=BLIAfRxbmeWcFxICwa21BLaJhoTy6Dq4PKVVY2bIJwg4hPh3xyit10gZ HNoiGUbo3Oo3uhxfow7MUZaiLOg+OyYkeQENCCfT0/6uXi9r32suADT+V QheKcu+xJZEtzkqQLeI8cE2UdSUK5qYuGY2OgEMt6Lpm88ETyX983DxUW gptIzHkkreMIA6FwGp5K1enCurOMlVcgiZZ7dG5FSdQ0HfG10to1nMeYe nzQcMG6P2MEuMMmzFB9L7bThcON4VTG1lc5Fjjt+jHsCNm+m/ZSCHWtCV F1fiBt3vg9SHCaiEQZWwIP/x46uw1mkYDCAQMV2k8fEdCrmhE6scOoH9Y A==; X-IronPort-AV: E=McAfee;i="6600,9927,10805"; a="376581771" X-IronPort-AV: E=Sophos;i="6.01,180,1684825200"; d="scan'208";a="376581771" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Aug 2023 07:29:00 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10805"; a="858244162" X-IronPort-AV: E=Sophos;i="6.01,180,1684825200"; d="scan'208";a="858244162" Received: from srr4-3-linux-103-aknautiy.iind.intel.com ([10.223.34.160]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Aug 2023 07:28:58 -0700 From: Ankit Nautiyal To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Date: Thu, 17 Aug 2023 19:54:58 +0530 Message-Id: <20230817142459.89764-18-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230817142459.89764-1-ankit.k.nautiyal@intel.com> References: <20230817142459.89764-1-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 17/18] drm/i915/dp: Check src/sink compressed bpp limit for edp 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Use checks for src and sink limits before computing compressed bpp for eDP. Signed-off-by: Ankit Nautiyal Reviewed-by: Stanislav Lisovskiy --- drivers/gpu/drm/i915/display/intel_dp.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index b295dd32e076..764663cd73ea 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -2027,6 +2027,8 @@ static int intel_edp_dsc_compute_pipe_bpp(struct intel_dp *intel_dp, { struct drm_i915_private *i915 = dp_to_i915(intel_dp); int pipe_bpp, forced_bpp; + int dsc_src_min_bpp, dsc_sink_min_bpp, dsc_min_bpp; + int dsc_src_max_bpp, dsc_sink_max_bpp, dsc_max_bpp; forced_bpp = intel_dp_force_dsc_pipe_bpp(intel_dp, conn_state, limits); @@ -2044,9 +2046,19 @@ static int intel_edp_dsc_compute_pipe_bpp(struct intel_dp *intel_dp, } pipe_config->port_clock = limits->max_rate; pipe_config->lane_count = limits->max_lane_count; - pipe_config->dsc.compressed_bpp = - min_t(u16, drm_edp_dsc_sink_output_bpp(intel_dp->dsc_dpcd) >> 4, - pipe_bpp); + + dsc_src_min_bpp = dsc_src_min_compressed_bpp(); + dsc_sink_min_bpp = dsc_sink_min_compressed_bpp(pipe_config); + dsc_min_bpp = max(dsc_src_min_bpp, dsc_sink_min_bpp); + + dsc_src_max_bpp = dsc_src_max_compressed_bpp(intel_dp); + dsc_sink_max_bpp = dsc_sink_max_compressed_bpp(intel_dp, pipe_config, pipe_bpp / 3); + dsc_max_bpp = dsc_sink_max_bpp ? min(dsc_sink_max_bpp, dsc_src_max_bpp) : dsc_src_max_bpp; + + /* Compressed BPP should be less than the Input DSC bpp */ + dsc_max_bpp = min(dsc_max_bpp, pipe_bpp - 1); + + pipe_config->dsc.compressed_bpp = max(dsc_min_bpp, dsc_max_bpp); pipe_config->pipe_bpp = pipe_bpp;