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 4676AC56201 for ; Fri, 20 Feb 2026 15:38:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C5A0210E7F5; Fri, 20 Feb 2026 15:38:28 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="ID6jL5iJ"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5509C10E806 for ; Fri, 20 Feb 2026 15:38:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1771601906; x=1803137906; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=2zhWl5I1dGgJbd825k/B45KvEV7oOQxWJgFJuY9NWFw=; b=ID6jL5iJ1hn/2wNMnvL4my/t+gOOqxtXW8EU5RQavQSDFSGEL00rzjki IhJHB43hQQXGbiJF+eGp3pZbRAeiRyZFgGpzi71pKx9XRj7/sA0DCF6Qy W4JQCwRWmLQ4Gl7F5H/EF9P13jXHuDMAdJ5l3O1eT5m0WWMFCk7GhYaQv 7KTc9jzfhATSAy1eXGNvZ0R4mKEQOc42b6F6LGMouwtm31PgbSJ/rFqi1 atRRIQ+5GAKKqb0zzmGEKiXi16OQ+F5FSktyf8evMrBMtkVlKvNgVXx9O mE3Mm9xy7lNXvTxPM6A53Eyp6N4VBejBzQBQS+03ZNbKjzZtE+tbdAX1k A==; X-CSE-ConnectionGUID: sBYkAAAiThyMIwxuNuT/2g== X-CSE-MsgGUID: yyNBaD10SNSUMmcZCLpieQ== X-IronPort-AV: E=McAfee;i="6800,10657,11707"; a="90105386" X-IronPort-AV: E=Sophos;i="6.21,302,1763452800"; d="scan'208";a="90105386" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Feb 2026 07:38:26 -0800 X-CSE-ConnectionGUID: ifBn0zJjRNGYC15ho/YsqA== X-CSE-MsgGUID: 8XZzoecNQlCn0k21q9mwmg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,302,1763452800"; d="scan'208";a="215007740" Received: from cmanszew-dev.igk.intel.com ([10.91.214.222]) by orviesa007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Feb 2026 07:38:24 -0800 From: Christoph Manszewski To: igt-dev@lists.freedesktop.org Cc: Rudnicki@freedesktop.org, Piotr , Piatkowski@freedesktop.org, Dominik Karol , Jan Sokolowski , Christoph Manszewski Subject: [PATCH i-g-t v4 5/5] lib/xe/xe_eudebug: Get drm card sysfs path Date: Fri, 20 Feb 2026 16:37:54 +0100 Message-ID: <20260220153748.210381-12-christoph.manszewski@intel.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20260220153748.210381-7-christoph.manszewski@intel.com> References: <20260220153748.210381-7-christoph.manszewski@intel.com> MIME-Version: 1.0 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 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 function to get the card name as defined in the: '/sys/class/drm/card' path. Signed-off-by: Christoph Manszewski --- lib/xe/xe_eudebug.c | 40 ++++++++++++++++++++++++++++++++++++---- 1 file changed, 36 insertions(+), 4 deletions(-) diff --git a/lib/xe/xe_eudebug.c b/lib/xe/xe_eudebug.c index a0caad2c3..37ce1e2ac 100644 --- a/lib/xe/xe_eudebug.c +++ b/lib/xe/xe_eudebug.c @@ -1901,6 +1901,34 @@ static void metadata_event(struct xe_eudebug_client *c, uint32_t flags, } #define EU_DEBUG_TOGGLE "device/enable_eudebug" + +static char *get_card_name(int fd, char *card_name, size_t len) +{ + char sysfs_path[PATH_MAX]; + char link_target[PATH_MAX]; + char *card_start; + ssize_t link_len; + + if (!igt_sysfs_path(fd, sysfs_path, sizeof(sysfs_path))) + return NULL; + + link_len = readlink(sysfs_path, link_target, sizeof(link_target) - 1); + if (link_len < 0) + return NULL; + + link_target[link_len] = '\0'; + + card_start = strstr(link_target, "card"); + if (!card_start) + return NULL; + + snprintf(card_name, len, "%s", card_start); + card_start = strchr(card_name, '/'); + if (card_start) + *card_start = '\0'; + + return card_name; +} /** * __xe_eudebug_enable_getset * @fd: xe client @@ -1962,7 +1990,7 @@ out: */ bool xe_eudebug_enable(int fd, bool enable) { - char sysfs_path[PATH_MAX]; + char card_name[NAME_MAX]; bool old = false; int ret = 0; @@ -1984,9 +2012,13 @@ bool xe_eudebug_enable(int fd, bool enable) } if (ret == -ENOENT) { - igt_assert(igt_sysfs_path(fd, sysfs_path, sizeof(sysfs_path))); - igt_skip("'%s/" EU_DEBUG_TOGGLE - "' sysfs attribute not found, EU DEBUG not supported\n", sysfs_path); + if (get_card_name(fd, card_name, sizeof(card_name))) + igt_skip("'/sys/class/drm/%s/" EU_DEBUG_TOGGLE + "' sysfs attribute not found, EU DEBUG not supported\n", + card_name); + else + igt_skip("'" EU_DEBUG_TOGGLE + "' sysfs attribute not found, EU DEBUG not supported\n"); } igt_abort_on_f(ret, "xe_eudebug_enable: Failed to %s eudebug\n", -- 2.47.1