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 8E1821061206 for ; Wed, 11 Mar 2026 11:07:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 29A1010E88F; Wed, 11 Mar 2026 11:07:08 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="ip4TPXRR"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) by gabe.freedesktop.org (Postfix) with ESMTPS id DC2EB10E88F for ; Wed, 11 Mar 2026 11:07:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1773227226; x=1804763226; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=oWBk23MwlY9/PP0KhBjTQeoeTpkbv4pM0eVZW/YUvm4=; b=ip4TPXRR476f/6xAJLCCQIyvNs9wUIshCWgh8f0zWjmVjd8EbB0q/JKx 730+IlTj11c69b4rMySkxMg2Mos9oFfWSd6ilDkVsnU5nJlkPYJQNonqH VAuI4AD9pdrLghXNDpGfqm4/kRIrpD6OKTCpaS2OfBiku9qKLyg0xWhgq hUsafd+4u/mqNVfQ+ye8HEu/wYd3mhDWjNqbzj0YKYuVzO2dHWo97mRiw j+EtQelu0okgLgLHyH+lgJ5sLcqu1B5NVeLVwa/6qiuFriWX9SUBchBsC OQFX5Wi255BJXELJO7KC9F83ZM0oPRTmPKCiwStMWRpJUtaPjSZ1cH0bE Q==; X-CSE-ConnectionGUID: 7R5Yry51RF+2i2Y2W/YJMA== X-CSE-MsgGUID: TaFJbzDnQiaRzuaqsTvh8g== X-IronPort-AV: E=McAfee;i="6800,10657,11725"; a="85378248" X-IronPort-AV: E=Sophos;i="6.23,113,1770624000"; d="scan'208";a="85378248" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2026 04:07:06 -0700 X-CSE-ConnectionGUID: Di6RMFV/TlSxgsmK1WiAPw== X-CSE-MsgGUID: Mv97S4M2QIK7WRl5C8X0Eg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,113,1770624000"; d="scan'208";a="258344708" Received: from cmanszew-dev.igk.intel.com ([10.91.214.222]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2026 04:07:04 -0700 From: Christoph Manszewski To: igt-dev@lists.freedesktop.org Cc: Piotr Rudnicki , =?UTF-8?q?Dominik=20Karol=20Pi=C4=85tkowski?= , Jan Sokolowski Subject: [PATCH i-g-t v5 5/5] lib/xe/xe_eudebug: Get drm card sysfs path Date: Wed, 11 Mar 2026 12:06:42 +0100 Message-ID: <20260311110636.798120-12-christoph.manszewski@intel.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20260311110636.798120-7-christoph.manszewski@intel.com> References: <20260311110636.798120-7-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. Reviewed-by: Piotr Rudnicki Link: https://lore.kernel.org/r/20260220153748.210381-12-christoph.manszewski@intel.com 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 c722a968a..3bffda561 100644 --- a/lib/xe/xe_eudebug.c +++ b/lib/xe/xe_eudebug.c @@ -1900,6 +1900,34 @@ 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 @@ -1961,7 +1989,7 @@ 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; @@ -1983,9 +2011,13 @@ 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