From patchwork Thu Dec 19 21:33:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jani Nikula X-Patchwork-Id: 13915845 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 EBC54E7718C for ; Thu, 19 Dec 2024 21:35:11 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6798610EDD8; Thu, 19 Dec 2024 21:35:11 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="OuN95kEF"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.16]) by gabe.freedesktop.org (Postfix) with ESMTPS id 31AEF10EDC5; Thu, 19 Dec 2024 21:35:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1734644110; x=1766180110; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=d4uzqwDj6nzDYsWgOLQnVWThnIwGvggvZAQRPHj6C+E=; b=OuN95kEFOFiNeyFiUWWCXMDW9nkvdgqFAGHVGLyIVMwTd46pbmyYW0ve KdcZ6B/cAGlR0sJo0qLPv2N33+sDZ1BG02wr1WGq66tomA3oM+/WoAFRl QUhQhTBB1txoOkRn+om4K89/5+9rlpA63moRTw3OKAsz01pKfVmzkIfDl uRHwLCn/Kg5WPxNsZBNcFtaSALqPxl0uBRt91ezrurkg6E4tPp84O5fsQ 5SB90JJS8tc7dBYwocsD1LDOf026gPKlVPxvNgSR6iUsr1NBfonb3owTD Fetq1sg+EKmwxIluogeyUkJxC2BQsSNKQNRR4La40pmXt+GnR5Z+FO3B7 w==; X-CSE-ConnectionGUID: NUgBL91eRduQ+11QPZcupQ== X-CSE-MsgGUID: K3dZvNLISSG6AuaQ09wj+g== X-IronPort-AV: E=McAfee;i="6700,10204,11291"; a="35330597" X-IronPort-AV: E=Sophos;i="6.12,248,1728975600"; d="scan'208";a="35330597" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Dec 2024 13:35:10 -0800 X-CSE-ConnectionGUID: Ns4ueVHUQAqtQujNIAULjQ== X-CSE-MsgGUID: qMwiYHKkSHKKdh5NPzJbhg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,248,1728975600"; d="scan'208";a="98115773" Received: from mjarzebo-mobl1.ger.corp.intel.com (HELO localhost) ([10.245.246.207]) by fmviesa006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Dec 2024 13:35:07 -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 10/16] drm/i915/ddi: write payload for 128b/132b SST Date: Thu, 19 Dec 2024 23:33:59 +0200 Message-Id: <5ce97e5f6c2dd4d5ee3181b2d4ed968eb806534c.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" Write the payload allocation table for 128b/132b SST. Use VCPID 1 and start from slot 0, with dp_m_n.tu slots. This is preparation for enabling 128b/132b SST. This path is not reachable yet. Indeed, we don't yet compute TU for 128b/132b SST. Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_ddi.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 6f813bf85b23..64528ff8856e 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -2669,6 +2669,12 @@ static void mtl_ddi_pre_enable_dp(struct intel_atomic_state *state, /* 6.o Configure and enable FEC if needed */ intel_ddi_enable_fec(encoder, crtc_state); + /* 7.a 128b/132b SST. */ + if (!is_mst && intel_dp_is_uhbr(crtc_state)) { + /* VCPID 1, start slot 0 for 128b/132b, tu slots */ + drm_dp_dpcd_write_payload(&intel_dp->aux, 1, 0, crtc_state->dp_m_n.tu); + } + if (!is_mst) intel_dsc_dp_pps_write(encoder, crtc_state); } @@ -2808,6 +2814,11 @@ static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state, /* 7.l Configure and enable FEC if needed */ intel_ddi_enable_fec(encoder, crtc_state); + if (!is_mst && intel_dp_is_uhbr(crtc_state)) { + /* VCPID 1, start slot 0 for 128b/132b, tu slots */ + drm_dp_dpcd_write_payload(&intel_dp->aux, 1, 0, crtc_state->dp_m_n.tu); + } + if (!is_mst) intel_dsc_dp_pps_write(encoder, crtc_state); }