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 D58E9C5321D for ; Mon, 19 Aug 2024 09:14:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8F32B10E22B; Mon, 19 Aug 2024 09:14:32 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="CZ0HXyLV"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4580C10E22B for ; Mon, 19 Aug 2024 09:14:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1724058871; x=1755594871; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=7x/66tqPfLUCjb6cVYkgfBqCXN6RPAXZQ1vm1uEIeNI=; b=CZ0HXyLV5kWuWAHfiFQLPcClFjblrpssEQfL4UgMp2PCrjuBaJoJkHZ1 XJAaXLkwHC3w/b8vGu+VhnE7vPU/8G7MhFmkGUr2dq3BmblnrfQL5gMKB bcNo8ca34nDBwUGzeThHtstQBBRIo7iDiNjgvTkyPOwFFqbvEm2ucFXvC OS689X3RM0rawa4wzTmzUHQGXzC/nCx217edImXgK6/ben3r0PndK0lLs irb9B2UR/JnIP2auDSJ+MdZV9lu8jcJVuFhs3Lepr4TS7cDTB32bxUUCI gzcXjkaRJCydncvMy9LwhX/GmP5w6kq09mM71Ch9EnN6AwoyGnZADyYAp w==; X-CSE-ConnectionGUID: oWFS7eKYSv2RuR2QiD4kDg== X-CSE-MsgGUID: U4X1/S6hQKyECdwe4RlHVQ== X-IronPort-AV: E=McAfee;i="6700,10204,11168"; a="44816324" X-IronPort-AV: E=Sophos;i="6.10,158,1719903600"; d="scan'208";a="44816324" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2024 02:14:31 -0700 X-CSE-ConnectionGUID: i7LwRZ10SBW5VWtKnhVtrg== X-CSE-MsgGUID: C87dKXcYR7m9cYvu4rKT+A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,158,1719903600"; d="scan'208";a="60884187" Received: from kunal-x299-aorus-gaming-3-pro.iind.intel.com ([10.190.239.13]) by orviesa007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2024 02:14:29 -0700 From: Kunal Joshi To: igt-dev@lists.freedesktop.org Cc: imre.deak@intel.com, Kunal Joshi Subject: [PATCH i-g-t 08/12] lib/igt_kms: add helper to get pending lt failures Date: Mon, 19 Aug 2024 14:56:11 +0530 Message-Id: <20240819092615.3669803-9-kunal1.joshi@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240819092615.3669803-1-kunal1.joshi@intel.com> References: <20240819092615.3669803-1-kunal1.joshi@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 helper to get pending link training failure Signed-off-by: Kunal Joshi --- lib/igt_kms.c | 24 ++++++++++++++++++++++++ lib/igt_kms.h | 1 + 2 files changed, 25 insertions(+) diff --git a/lib/igt_kms.c b/lib/igt_kms.c index 2948bbb7a..4a501e6bf 100644 --- a/lib/igt_kms.c +++ b/lib/igt_kms.c @@ -7027,3 +7027,27 @@ bool igt_has_force_link_training_failure_debugfs(int drmfd, igt_output_t *output close(debugfs_fd); return ret >= 0; } + +/** + * igt_read_link_training_info: + * @drm_fd: A drm file descriptor + * @output: Target output + * @link_training_info: Link training info to be filled + * + * Returns: Sets link training info. + */ +int igt_get_dp_pending_lt_failures(int drm_fd, igt_output_t *output) +{ + int dir, res, ret; + char buf[512]; + + igt_require_f(output->name, "Invalid output"); + dir = igt_debugfs_connector_dir(drm_fd, output->name, O_RDONLY); + igt_assert_f(dir >= 0, "Failed to open debugfs dir for connector %s\n", + igt_output_name(output)); + res = igt_debugfs_simple_read(dir, "i915_dp_force_link_training_failure", buf, sizeof(buf)); + close(dir); + igt_require(res > 0); + sscanf(buf, "%d", &ret); + return ret; +} diff --git a/lib/igt_kms.h b/lib/igt_kms.h index 62b1375f2..88e88a6c7 100644 --- a/lib/igt_kms.h +++ b/lib/igt_kms.h @@ -1261,5 +1261,6 @@ void igt_force_link_retrain(int drm_fd, igt_output_t *output, int retrain_count) void igt_force_lt_failure(int drm_fd, igt_output_t *output, int failure_count); bool igt_get_dp_link_retrain_disabled(int drm_fd, igt_output_t *output); bool igt_has_force_link_training_failure_debugfs(int drmfd, igt_output_t *output); +int igt_get_dp_pending_lt_failures(int drm_fd, igt_output_t *output); #endif /* __IGT_KMS_H__ */ -- 2.43.0