From patchwork Fri Oct 27 09:53:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nemesa Garg X-Patchwork-Id: 13438460 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 3841AC25B47 for ; Fri, 27 Oct 2023 09:55:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D349A10E009; Fri, 27 Oct 2023 09:55:50 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 42DBB10E009 for ; Fri, 27 Oct 2023 09:55:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1698400548; x=1729936548; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=bz6Y1j67RGy+OY6D7NHOBAZpsuIrQWwomU3zriS+wFo=; b=S4zPXrCtmgbllGOvld7co5x8iqr7GrOIdu/Chdwt6uBtC7zjKGqSw7sC pW4E24VTKMSdKGlFvULj57xm8belopl6qrDamTQlAR2J0FeqvBuTkAimT U5vF3aJkFEVPcMWI0k2UGrYVeidX+YqV18NOE01wPJA3tZIbohqwcqQcu UaAcmlR8W75E9awCp0EXANQK2bFOzcXjlrf1evDdeiE4gJcmm5qQT5RCp TQ/KqyEfzGPxvmuT5KUSXIlgpE0zg5tGS0cY5hFCPj+LbRaxLDKkmovU/ FUjnoLDIDEXIbT1fILUqIoCQ/fi+jQ+ZMDuRj+XbxQDkfKihl13e6J4Ie g==; X-IronPort-AV: E=McAfee;i="6600,9927,10875"; a="384953735" X-IronPort-AV: E=Sophos;i="6.03,255,1694761200"; d="scan'208";a="384953735" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Oct 2023 02:55:47 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10875"; a="1090878998" X-IronPort-AV: E=Sophos;i="6.03,255,1694761200"; d="scan'208";a="1090878998" Received: from nemesa.iind.intel.com ([10.190.239.22]) by fmsmga005.fm.intel.com with ESMTP; 27 Oct 2023 02:55:46 -0700 From: Nemesa Garg To: intel-gfx@lists.freedesktop.org Date: Fri, 27 Oct 2023 15:23:34 +0530 Message-Id: <20231027095336.3059445-1-nemesa.garg@intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Subject: [Intel-gfx] [v2 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/display: Add support for darskscreen detection drm/i915/display: Add darkscreen debugfs entry under crtc drivers/gpu/drm/i915/Makefile | 1 + .../gpu/drm/i915/display/intel_darkscreen.c | 123 ++++++++++++++++++ .../gpu/drm/i915/display/intel_darkscreen.h | 26 ++++ .../drm/i915/display/intel_display_debugfs.c | 2 + .../drm/i915/display/intel_display_types.h | 2 + drivers/gpu/drm/i915/i915_reg.h | 8 ++ 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