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 0373CC02199 for ; Wed, 5 Feb 2025 19:17:47 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B8BB410E3BA; Wed, 5 Feb 2025 19:17:47 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="A+ofxzlL"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9FC9D10E16E for ; Wed, 5 Feb 2025 19:16:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1738783016; x=1770319016; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=8kXx/aZZXsPOv2dGSni1+qImYA3Q9YoerVF450xuVTA=; b=A+ofxzlLMieDHvs2CrmX1wFMmCGfZfuCGNuE4hFrR9h28xnKZMzQYFxA kZ4xW1YuLOEvts2CqT8uS2hbHf3ZcQZ34+JIfDegxbfkiY5JHAouLns1+ BPwfpTvdlwFBDTv8hIvOl5bFhx23noZGqE87BL5nPkVFQ9BWRdMsSUu+U rMxiwoBG3gTAHFbMVnTxpyqtdUf7eocYHl4eSvPIldDfWgxVkorfJ+zQu SrJDtBaCWFKa/bZu41yEyXDpQEppOsipcGuF0L/v9Y0DN5YZ6nsk3fEJo c5OlAzdiToCSe08Z4uSKBRkto/4NGWzvregQEgWlRmX0311Wzlefi8G0B g==; X-CSE-ConnectionGUID: E1fvsU87QgmOnQY9/GlmJA== X-CSE-MsgGUID: DwceBURkRH+zxZGJbxrkOg== X-IronPort-AV: E=McAfee;i="6700,10204,11336"; a="61837884" X-IronPort-AV: E=Sophos;i="6.13,262,1732608000"; d="scan'208";a="61837884" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Feb 2025 11:16:53 -0800 X-CSE-ConnectionGUID: 6ti8wArOQaSPoRmqnCpePw== X-CSE-MsgGUID: wZ4jqjqfSXS3Ld5UtxoNRQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.13,262,1732608000"; d="scan'208";a="111519913" Received: from mbernato-mobl1.ger.corp.intel.com (HELO localhost) ([10.246.3.119]) by fmviesa010-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Feb 2025 11:16:50 -0800 From: Marcin Bernatowicz To: intel-xe@lists.freedesktop.org Cc: Marcin Bernatowicz , Lucas De Marchi , Michal Wajdeczko , =?UTF-8?q?Micha=C5=82=20Winiarski?= , Umesh Nerlige Ramappa Subject: [PATCH 0/2] VF: Avoid reading inaccessible RING_TIMESTAMP Date: Wed, 5 Feb 2025 20:16:42 +0100 Message-Id: <20250205191644.2550879-1-marcin.bernatowicz@linux.intel.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" RING_TIMESTAMP registers are not available for VF (Virtual Function) drivers. Return -EOPNOTSUPP when the DRM_XE_DEVICE_QUERY_ENGINE_CYCLES ioctl is invoked on a VF device. RING_TIMESTAMP registers populate drm-total-cycles-* fdinfo keys. Without drm-total-cycles-*, other keys provide little value. Skip all optional "run_ticks" keys if unable to read the timestamp. v2: - Drop "drm/xe/vf: Return error code from xe_hw_engine_read_timestamp()" patch. (Michal) - Skip "run_ticks" keys if unable to read timestamp. (Lucas) Cc: Lucas De Marchi Cc: Michal Wajdeczko Cc: Michał Winiarski Cc: Umesh Nerlige Ramappa Marcin Bernatowicz (2): drm/xe/vf: Return EOPNOTSUPP for DRM_XE_DEVICE_QUERY_ENGINE_CYCLES if VF drm/xe/client: Skip show_run_ticks if unable to read timestamp drivers/gpu/drm/xe/xe_drm_client.c | 8 ++++++++ drivers/gpu/drm/xe/xe_query.c | 3 +++ 2 files changed, 11 insertions(+) -- 2.31.1