From patchwork Wed Oct 25 10:27:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nemesa Garg X-Patchwork-Id: 13435962 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 DC9D8C25B47 for ; Wed, 25 Oct 2023 10:37:01 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7E3FE10E630; Wed, 25 Oct 2023 10:37:01 +0000 (UTC) X-Greylist: delayed 426 seconds by postgrey-1.36 at gabe; Wed, 25 Oct 2023 10:36:59 UTC Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8D50010E62F for ; Wed, 25 Oct 2023 10:36:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1698230219; x=1729766219; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=87FNk078+pU98fzlTrEPHm3U3IMogBE7P6gs+YdtQWc=; b=G3/zawtMOVgvrd05NijSJMd4cdnL13GvHa9GsV+hW0aCRc0n/N+66w1D fo3VZwN/CZeazdXjnKz5OgrGKbqUe/eEpMmj5C5Vnyb4C8PEnffmtAZcW +fGzhQM8dwhbBADQk0/YLH0pL+EPCvn+2Hw0RHtHVv2p/U8xQV4cvWeLT Ds87ZjBvme2bRL5nv54MVG09mLmpFg1xm3tVQ3KEQp/oDUUI06XRA+59p W1LozdREU7LfLH5L88o9wV+ncjxuUvDiMxEXpOjMn4TZKIM5RZ7wh8NIy iEXK6qijkummGpVnjqjIAPncbsbW8Jwclp8VwBfOS8qaMjbxHQPHelcer A==; X-IronPort-AV: E=McAfee;i="6600,9927,10873"; a="43838" X-IronPort-AV: E=Sophos;i="6.03,250,1694761200"; d="scan'208";a="43838" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Oct 2023 03:29:53 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10873"; a="882409850" X-IronPort-AV: E=Sophos;i="6.03,250,1694761200"; d="scan'208";a="882409850" Received: from nemesa.iind.intel.com ([10.190.239.22]) by orsmga004.jf.intel.com with ESMTP; 25 Oct 2023 03:29:51 -0700 From: Nemesa Garg To: intel-gfx@lists.freedesktop.org Date: Wed, 25 Oct 2023 15:57:32 +0530 Message-Id: <20231025102734.2783492-1-nemesa.garg@intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 0/2] Enable Darkscreen Feature 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" The logic checks for any black screen at pipe level and upon such detection prints error. Darkscreen compares the pixels with the compare value(0x00 - black) for the detection purpose. This feature can be enables/disabled through debugfs. Nemesa Garg (2): drm/i915: Add Darkscreen registers and timer handler. drm/i915: Add the darkscreen debugfs under crtc drivers/gpu/drm/i915/Makefile | 1 + .../gpu/drm/i915/display/intel_darkscreen.c | 107 ++++++++++++++++++ .../gpu/drm/i915/display/intel_darkscreen.h | 40 +++++++ .../drm/i915/display/intel_display_debugfs.c | 2 + .../drm/i915/display/intel_display_types.h | 3 + drivers/gpu/drm/i915/i915_reg.h | 9 ++ 6 files changed, 162 insertions(+) create mode 100644 drivers/gpu/drm/i915/display/intel_darkscreen.c create mode 100644 drivers/gpu/drm/i915/display/intel_darkscreen.h