From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) (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 CBF242405E4 for ; Mon, 3 Mar 2025 23:34:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741044897; cv=none; b=N6verzguj379aLsitEH/2n8dmZnFsHQbdpJciOEPJlz4B9+DZj/NqdHLWD0GSJ97+EfLbS8Ymp3kJSDdPRS8tnPsqIQfEcoQDJ3HXu6x65mhT3zRKHoX8+bqNOJMPmPqE9Z/L18feyYaHRsMI0kq+Phs4cvKzHoffifD1ufjWY8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741044897; c=relaxed/simple; bh=QcahdaJ0srwRFNH4DR64JCumoDDRz85MfhiRqpgaJVk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=AkxKadChcLMaPAIGfsbE1iPZl4fK63INTjNop7upYHHMQufg0OVYQmupy53WSgMjvStkQ82plUrjVuzWRhUk1dBfwJtWrCGlrPfvXS9zmZiO8vXb0pM6LFizMr8iROL/qCfTC1EDK7+wg5Zk29emlY1+gc41vLbZT1TvMydpmB8= 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=jADWn+m3; arc=none smtp.client-ip=192.198.163.17 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="jADWn+m3" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1741044896; x=1772580896; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=QcahdaJ0srwRFNH4DR64JCumoDDRz85MfhiRqpgaJVk=; b=jADWn+m3isGb9l67z6mQTjKOCrfPj2qw/SIIjrbGVQizLsGygpiNiOds YCu79SPlyGFgDetXfm20m65kQdXXbQNY6cVeE+wAswFW82+MRgUiHo5sx FYQpACIYqYFxw9wkh95eJRPdnXrlRV9NwU1Y0zNXmf6uvdiqr2GqnSEP/ wESY3964zAxEUerAUlroogr4H08+2qyWBQE0wtdoEB080md8CE8Vj3L2q 3NJWlzpRXUU4o2MWB4/yEpzrRwTqbiviV1LXx2fAb33Conb5AYh+lCjWn aLTivY5ou741GF9fFYEYK2QEslDXXfCAurh4eZKVnmmQ+XK/uK+pjpdKr g==; X-CSE-ConnectionGUID: +O77Pjb1Q3+c3knDqnXesQ== X-CSE-MsgGUID: qFWnY2PcQqCFyqTz5BMFxA== X-IronPort-AV: E=McAfee;i="6700,10204,11362"; a="41835985" X-IronPort-AV: E=Sophos;i="6.13,330,1732608000"; d="scan'208";a="41835985" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Mar 2025 15:34:47 -0800 X-CSE-ConnectionGUID: jKERIBNCTp2tXNsPsNHOnw== X-CSE-MsgGUID: UHK9V27VQHeTxQNeXIXsFw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.13,330,1732608000"; d="scan'208";a="117982304" Received: from agluck-desk3.sc.intel.com ([172.25.222.70]) by fmviesa006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Mar 2025 15:33:53 -0800 From: Tony Luck To: Fenghua Yu , Reinette Chatre , Maciej Wieczor-Retman , Peter Newman , James Morse , Babu Moger , Drew Fustini , Dave Martin Cc: linux-kernel@vger.kernel.org, patches@lists.linux.dev, Tony Luck Subject: [RFC PATCH 13/17] x86/resctrl: Build lookup table for package events Date: Mon, 3 Mar 2025 15:33:33 -0800 Message-ID: <20250303233340.333743-14-tony.luck@intel.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250303233340.333743-1-tony.luck@intel.com> References: <20250303233340.333743-1-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 The resctrl filesystem saves the evt_type in the private data pointer of the kernfs_node of each file in the mon_data directories. To print the values for each file the show() function will need to map from this evtid to: num_rmids - to make sure data for this file exists guid - to pick the pmt_event(s) for each package stride/offset - to compute MMIO offset for this RMID/event Build a lookup table for each event to save searching through lists and add macros for ease of use. Signed-off-by: Tony Luck --- arch/x86/kernel/cpu/resctrl/intel_pmt.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/x86/kernel/cpu/resctrl/intel_pmt.c b/arch/x86/kernel/cpu/resctrl/intel_pmt.c index 05640e85d303..c5557d7f5fbe 100644 --- a/arch/x86/kernel/cpu/resctrl/intel_pmt.c +++ b/arch/x86/kernel/cpu/resctrl/intel_pmt.c @@ -38,6 +38,18 @@ enum pmt_event_id { PMT_NUM_EVENTS }; +static struct evtinfo { + struct telem_entry *telem_entry; + struct pmt_event *pmt_event; +} evtinfo[PMT_NUM_EVENTS]; + +#define EVT_NUM_RMIDS(evtid) (evtinfo[evtid].telem_entry->num_rmids) +#define EVT_STRIDE(evtid) (evtinfo[evtid].telem_entry->stride) +#define EVT_GUID(evtid) (evtinfo[evtid].telem_entry->guid) + +#define EVT_OFFSET(evtid) (evtinfo[evtid].pmt_event->evt_offset) +#define EVT_TYPE(evtid) (evtinfo[evtid].pmt_event->evt_type) + enum evt_type { EVT_U64, EVT_U46_18, @@ -274,6 +286,9 @@ void rdt_get_intel_pmt_mount(void) for (int i = 0; (*tentry)->evts[i].evt.name; i++) { evt = &(*tentry)->evts[i].evt; list_add_tail(&evt->list, &r->evt_list); + + evtinfo[evt->evtid].telem_entry = *tentry; + evtinfo[evt->evtid].pmt_event = &(*tentry)->evts[i]; ret = true; } if (!r->num_rmid) -- 2.48.1