From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 98CA538F236 for ; Wed, 29 Jul 2026 17:28:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.12 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785346091; cv=none; b=aSX3qhByVrNsRwGWcGRh9njrxnybCTHLjtFRvkVlLU+7O8QeAXQZTPcQ1/6NRaV++7cGzvxjYHdQO5gxuGkKmCHyqQ9Kkj8RWbFyriudT6qg9GRnlcdnTQ7JZHq+Ut5p/tORlFneC4CA2axQncy4Doh1di0gj8J5N55RNEaBSq0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785346091; c=relaxed/simple; bh=4BoKs1od+Gv5HH07yihtTbqfbNKVweeOxorcymMBGFk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=U8MZT5g43xMQ+837zzufD57lX2Llkj5O4JRrJjX6u4mzITnUBvpjUwpgNEzgLIKEuq+EgSh8PJxbCC37/jdmtUDIfUSoijv8TvnfLveIl00YMcMQS5vJB096CP5/vNA4WsZ6y7YAPd5nbHwabWBavMZwfKRH2YaQLfDRJ6FBqS8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=WZ03d+R+; arc=none smtp.client-ip=198.175.65.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="WZ03d+R+" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1785346089; x=1816882089; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=4BoKs1od+Gv5HH07yihtTbqfbNKVweeOxorcymMBGFk=; b=WZ03d+R+k26DGS5uNn7fMwUyKKe7JRA/ypReIzduwu27BabkN7JGL2X9 0EvQEbg5Qs2kqqwyoMIKyGahdlp8hANcRzTkCy5WsgbZN/uZu28q1iFD0 thMYjZO6NET7fQtKAEQ7cjbKdotvoKQ4W8/rTiOP1usj8oAoVPFQotd+l vitbk7Gi02aB1NbwgGAS6N62E4j9Xe5oDIcCMr+kfRIP+KrJq3Unl4keU xcxukDimbL/r0zE+lvCZIlB3vlAxovlHv/ElftHnZBCz3S3/UkGdhTe8Q PO0apMScoUz1GpmZEe2gamf4Wv+zH4MoCJAqBIuUncciu9rjXHCRs4w0X A==; X-CSE-ConnectionGUID: zjsvLmH7RuahmjLDTwe5Xg== X-CSE-MsgGUID: tul59gBGQ1GmDNKVJ6wv2Q== X-IronPort-AV: E=McAfee;i="6800,10657,11859"; a="97473644" X-IronPort-AV: E=Sophos;i="6.25,192,1779174000"; d="scan'208";a="97473644" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jul 2026 10:28:02 -0700 X-CSE-ConnectionGUID: FbG+LTywRreyI0YR1IJK/A== X-CSE-MsgGUID: +HrO8dpbQHCWCcaK9Yb3hw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,192,1779174000"; d="scan'208";a="262024596" Received: from iherna2-mobl4.amr.corp.intel.com (HELO agluck-desk3.home.arpa) ([10.124.223.238]) by fmviesa004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jul 2026 10:28:02 -0700 From: Tony Luck To: Fenghua Yu , Reinette Chatre , Maciej Wieczor-Retman , Peter Newman , James Morse , Babu Moger , Drew Fustini , Dave Martin , Chen Yu , David E Box , x86@kernel.org Cc: Christoph Hellwig , linux-kernel@vger.kernel.org, patches@lists.linux.dev, Tony Luck Subject: [PATCH v10 10/17] platform/x86/intel/pmt: Register enumeration functions with resctrl Date: Wed, 29 Jul 2026 10:27:45 -0700 Message-ID: <20260729172752.11561-11-tony.luck@intel.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260729172752.11561-1-tony.luck@intel.com> References: <20260729172752.11561-1-tony.luck@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit INTEL_PMT_TELEMETRY is a loadable module, but resctrl is built-in and cannot call PMT functions directly. Use ".probe_type = PROBE_FORCE_SYNCHRONOUS" to ensure sequential, synchronous calls to per-device .probe() functions. Register the telemetry enumeration function pointers at the end of pmt_telem_init() when all .probe() functions have run and enumeration is complete. Unregister at the start of pmt_telem_exit() before teardown of the auxiliary drivers. Suggested-by: Christoph Hellwig Signed-off-by: Tony Luck --- v10: No need for now that declarations of intel_aet*() moved to drivers/platform/x86/intel/pmt/telemetry.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/platform/x86/intel/pmt/telemetry.c b/drivers/platform/x86/intel/pmt/telemetry.c index 953f35b6daec..cafa2288600d 100644 --- a/drivers/platform/x86/intel/pmt/telemetry.c +++ b/drivers/platform/x86/intel/pmt/telemetry.c @@ -427,16 +427,26 @@ static struct auxiliary_driver pmt_telem_aux_driver = { .id_table = pmt_telem_id_table, .remove = pmt_telem_remove, .probe = pmt_telem_probe, + .driver = { + .probe_type = PROBE_FORCE_SYNCHRONOUS, + }, }; static int __init pmt_telem_init(void) { - return auxiliary_driver_register(&pmt_telem_aux_driver); + int ret = auxiliary_driver_register(&pmt_telem_aux_driver); + + if (!ret) + intel_aet_register_enumeration(THIS_MODULE, intel_pmt_get_regions_by_feature, + intel_pmt_put_feature_group); + + return ret; } module_init(pmt_telem_init); static void __exit pmt_telem_exit(void) { + intel_aet_unregister_enumeration(); auxiliary_driver_unregister(&pmt_telem_aux_driver); xa_destroy(&telem_array); } -- 2.55.0