From patchwork Thu Dec 19 21:34:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jani Nikula X-Patchwork-Id: 13915846 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 D384AE7718A for ; Thu, 19 Dec 2024 21:35:24 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 482A710EDC5; Thu, 19 Dec 2024 21:35:24 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="haMdfbhC"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) by gabe.freedesktop.org (Postfix) with ESMTPS id 729B910EDCD; Thu, 19 Dec 2024 21:35:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1734644123; x=1766180123; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=wNFPJqO00mVn9O2EQ9xYmLD8wrVHLaCeLw0kCzNtP34=; b=haMdfbhCcN8HK3FkMpUBpblSpWMRWMGkVzZla+41ytIbzGDPCaHcEW3D Rjd8lc1nBW+ZxPiM7EamCpl1UW9ZzWBHjfFc1khKGB2erbCG9CKZA/h6G Uni6wYsuho+Fkl+bwSDBvzOV41OKuGqxadIEpGJ+y+6VaYjtg0zy//aYE xpx1jGeqMW82Qzrh40H8Is3TfXC2HIRD0YarKDTLwanVUEShKBTv7JWCV +QN+H7KRycIV/1VrYTRBsZx16NdwB1S16aDScGRpEbZEeF3Pognw3piAO oQWvz3OxZ4i7mxn07rUBh2L/qEqkkmMgtS/Vou6wCYP4V7mgjtpIkLJuo g==; X-CSE-ConnectionGUID: t0AmKlqOSBKCwuL0qXpUxQ== X-CSE-MsgGUID: T05zrqbOTfauj9DQ9TSttQ== X-IronPort-AV: E=McAfee;i="6700,10204,11291"; a="52590382" X-IronPort-AV: E=Sophos;i="6.12,248,1728975600"; d="scan'208";a="52590382" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Dec 2024 13:35:20 -0800 X-CSE-ConnectionGUID: vLYx9jo5Sbewqz/A4rpBxw== X-CSE-MsgGUID: UgeX0LsPR2yrKa9F1qkwiQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,248,1728975600"; d="scan'208";a="129146291" Received: from mjarzebo-mobl1.ger.corp.intel.com (HELO localhost) ([10.245.246.207]) by orviesa002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Dec 2024 13:35:18 -0800 From: Jani Nikula To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org, jani.nikula@intel.com, imre.deak@intel.com Subject: [PATCH v2 12/16] drm/i915/ddi: enable ACT handling for 128b/132b SST Date: Thu, 19 Dec 2024 23:34:01 +0200 Message-Id: <90c3402b0b11f13600c700f07c103738413ae6f9.1734643485.git.jani.nikula@intel.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: References: MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add ACT handling for 128b/132b SST. This is preparation for enabling 128b/132b SST. This path is not reachable yet. Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_ddi.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 91e6cd91e91f..7b739b9c5a06 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -3486,6 +3486,19 @@ static void intel_ddi_enable(struct intel_atomic_state *state, /* Enable/Disable DP2.0 SDP split config before transcoder */ intel_audio_sdp_split_update(crtc_state); + /* 128b/132b SST */ + if (intel_dp_is_uhbr(crtc_state)) { + struct intel_dp *intel_dp = enc_to_intel_dp(encoder); + + intel_ddi_clear_act_sent(encoder, crtc_state); + + intel_de_rmw(display, TRANS_DDI_FUNC_CTL(display, cpu_transcoder), 0, + TRANS_DDI_DP_VC_PAYLOAD_ALLOC); + + intel_ddi_wait_for_act_sent(encoder, crtc_state); + drm_dp_dpcd_poll_act_handled(&intel_dp->aux, 0); + } + intel_enable_transcoder(crtc_state); intel_ddi_wait_for_fec_status(encoder, crtc_state, true);