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 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 7BB8DC5478C for ; Thu, 22 Feb 2024 07:45:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BF62310E892; Thu, 22 Feb 2024 07:45:58 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="S8GSNFVQ"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.18]) by gabe.freedesktop.org (Postfix) with ESMTPS id 99EA210E892 for ; Thu, 22 Feb 2024 07:45:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1708587957; x=1740123957; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=UavXwdJmwudySItglSYoYO4uA5boXOAsJFZZ/A7/xf4=; b=S8GSNFVQ+Acdy6GmAySCiwJEftPO7tHT7OGW4dURXPpsEkB/CnwbuMSl rDcwsdUxXLR8m+y7dXELluV3xRuToUeaAJS5N6hyIXM5uZ5kfOrFGN0y+ 4CWWay7ozG+7s/u796CitLqjBcoylOAqNVSM74YZRhIkZElLBqQlAuNkb thSMCgLsdtKrgoDzaKiNYOc9XSSwkHBOmnsXnR90y/JpIj3JCINfRTDWQ etelGE0fhx6skE94wQeo7YyWdFjknGg0Lx0qZTzkSUFW0FZ6MlBfVh4nK BoRie4Ctg+uhqAMpUM7DwnftgfHr31IOrZm1Szc+LvsTEciSoBqFK6MNW A==; X-IronPort-AV: E=McAfee;i="6600,9927,10991"; a="2906003" X-IronPort-AV: E=Sophos;i="6.06,177,1705392000"; d="scan'208";a="2906003" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Feb 2024 23:45:57 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,177,1705392000"; d="scan'208";a="5354111" Received: from kandpal-x299-ud4-pro.iind.intel.com ([10.190.239.32]) by fmviesa009.fm.intel.com with ESMTP; 21 Feb 2024 23:45:54 -0800 From: Suraj Kandpal To: intel-gfx@lists.freedesktop.org Cc: uma.shankar@intel.com, ankit.k.nautiyal@intel.com, Suraj Kandpal Subject: [PATCH 00/13] HDCP MST Type1 fixes Date: Thu, 22 Feb 2024 13:13:41 +0530 Message-ID: <20240222074353.1568904-2-suraj.kandpal@intel.com> X-Mailer: git-send-email 2.43.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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" We were seeing a blank screen whenever Type1 content was played. This was due to extra timing which was taken as we had moved to remote read and writes previously for MST scenario, which in turn was done as we were not able to do direct read and writes to the immediate downstream device. The correct flow should be that we talk only to the immediate downstream device and the rest needs to be taken care by that device. With this patch series we move back to direct reads and writes, fix the fastset setting because of which direct reads and writes to HDCP related DPCD register stopped working, derive hdcp structure correctly and increase robustability if rxcaps HDCP capability reporting. Signed-off-by: Suraj Kandpal Suraj Kandpal (13): drm/i915/hdcp: Move to direct reads for HDCP drm/i915/hdcp: Move source hdcp2 checks into its own function drm/i915/hdcp: Refactor intel_dp_hdcp2_capable drm/i915/hdcp: Pass drm_dp_aux to read_bcaps function drm/i915/hdcp: Rename hdcp capable functions drm/i915/hdcp: Add new remote capability check shim function drm/i915/hdcp: HDCP Capability for the downstream device drm/i915/hdcp: Remove additional timing for reading mst hdcp message drm/i915/hdcp: Extract hdcp structure from correct connector drm/i915/hdcp: Don't enable HDCP2.2 directly from check_link drm/i915/hdcp: Don't enable HDCP1.4 directly from check_link drm/i915/hdcp: Allocate stream id after HDCP AKE stage drm/i915/hdcp: Read Rxcaps for robustibility .../drm/i915/display/intel_display_debugfs.c | 21 +- .../drm/i915/display/intel_display_types.h | 12 +- drivers/gpu/drm/i915/display/intel_dp_hdcp.c | 137 +++++++---- drivers/gpu/drm/i915/display/intel_hdcp.c | 226 +++++++++--------- drivers/gpu/drm/i915/display/intel_hdcp.h | 7 +- drivers/gpu/drm/i915/display/intel_hdmi.c | 6 +- 6 files changed, 228 insertions(+), 181 deletions(-) -- 2.43.2