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 AAB72CF9C6F for ; Tue, 24 Sep 2024 14:36:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 67D3610E8CC; Tue, 24 Sep 2024 14:36:07 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="ZZU7j0Za"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8535710E8CB for ; Tue, 24 Sep 2024 14:36:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1727188565; x=1758724565; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ZD1/XxQqYF/SP5VOO1LlBnNu4mmGPludgJEz2xSAq34=; b=ZZU7j0Za75JWhd3irkNh8fNuKQtlJJZgXY6sGJNMeZytI2d+u5VciqvZ j0/D5gRkkD+3RlOE1j/SzSms1eE4TdrDSmj62AK4UXmwf/GZ7anXmZ5PU Wp/ablJULQUQMdv08pch63IKntr22755fkKICinuZw9W2H3QcuoOsNlgE eMJ21ebzmf4J6ipqel6Hi4RjKGB6XfOgxud0cjWGK72xe6ZXkjlobjb+b R7AOOLXgvaYliWnKrKpatnKS4uIwP3a8L3zaYEQsgOqoRt8v3TbN5gacZ Fx5rDoSyjroaco8dbA0EAJi91qEDixWeqgSQDuQX20nJXDsVQwlCftgVP w==; X-CSE-ConnectionGUID: sAoDRKErTQySe81d4j232w== X-CSE-MsgGUID: koi8cgkgS4KlCiHBDdv3sA== X-IronPort-AV: E=McAfee;i="6700,10204,11205"; a="26137203" X-IronPort-AV: E=Sophos;i="6.10,254,1719903600"; d="scan'208";a="26137203" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Sep 2024 07:36:05 -0700 X-CSE-ConnectionGUID: aqB8IN40SkabFP4vaUq9CA== X-CSE-MsgGUID: zeqYSpFhQ1ys+Trvqk/M4Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,254,1719903600"; d="scan'208";a="102258333" Received: from bhanu-nuclab.iind.intel.com ([10.145.169.172]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Sep 2024 07:36:04 -0700 From: Bhanuprakash Modem To: igt-dev@lists.freedesktop.org Cc: Bhanuprakash Modem Subject: [i-g-t V2 5/5] lib/igt_kms: Reset spurious hpd to default on exit Date: Tue, 24 Sep 2024 19:56:38 +0530 Message-ID: <20240924142638.238291-6-bhanuprakash.modem@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240924142638.238291-1-bhanuprakash.modem@intel.com> References: <20240924142638.238291-1-bhanuprakash.modem@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: igt-dev@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development mailing list for IGT GPU Tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" Add support to force the spurious hpd to default on exit. Signed-off-by: Bhanuprakash Modem --- lib/igt_kms.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/lib/igt_kms.c b/lib/igt_kms.c index c1d80dbb8..e47db0309 100644 --- a/lib/igt_kms.c +++ b/lib/igt_kms.c @@ -2896,6 +2896,19 @@ static void igt_handle_spurious_hpd(igt_display_t *display) dump_connector_attrs(); } +static void igt_reset_spurious_hpd(int drm_fd) +{ + /* Proceed with spurious HPD handling only if the env var is set */ + if (!getenv("IGT_KMS_IGNORE_HPD")) + return; + + /* Set the ignore HPD for the driver */ + if (!igt_ignore_long_hpd(drm_fd, false)) { + igt_info("Unable set the ignore HPD debugfs entry \n"); + return; + } +} + /** * igt_display_reset_outputs: * @display: a pointer to an initialized #igt_display_t structure @@ -3416,6 +3429,9 @@ void igt_display_fini(igt_display_t *display) igt_output_fini(&display->outputs[i]); } + if (display->n_pipes && display->n_outputs) + igt_reset_spurious_hpd(display->drm_fd); + free(display->outputs); display->outputs = NULL; free(display->pipes); -- 2.43.0