From nobody Mon Feb 9 19:30:55 2026 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.20]) (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 27197235359 for ; Fri, 21 Mar 2025 23:16:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.20 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742598989; cv=none; b=cfNzDjwe+32XcGPu0LVbPkj+iVs7hDq4pFjHRbAP+bCEgANkNOqMqCEnJwT6MDPOt9ziNaH4/Did9YUuEzyF9NAtkyXHYPMxEJeEy8qFgfHUAnOd+1reHMZxBPr50Cys493pH17lQFnmaj08diyT1kfZ+3/OP0WnhD/GXyp6lkc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742598989; c=relaxed/simple; bh=wNOnSyJUZyVtqGVHCJp5/qbvQ2/t2PXiy9nfB0mLrQE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hXFisfvconLa+GYRV50NwcH8c7jmz+VX1k7JTjHsah9V/bX7bWAApVuzpwc7LhXxFYoFWCcFGDfvujiBcjMgTrhCB+L6PHJs6WJT+ZJ7ZLyIJig0YamfCMVMGKKbABfTkwAO41CE4CeYgI/iAz+BHi6i0QempvghXgIHHet1zzk= 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=EJVDO9M+; arc=none smtp.client-ip=198.175.65.20 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="EJVDO9M+" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1742598988; x=1774134988; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=wNOnSyJUZyVtqGVHCJp5/qbvQ2/t2PXiy9nfB0mLrQE=; b=EJVDO9M+r9TW+I8P+InLbFDu7xCPm9pw2MK1N5TLnvV7DwoaPw8+VnPP 4oDUYZ+/jo23nZQwCmdAc+PTdF/VNPRiUHYJ5AcAA4c1RYH2UMzJ8rwsM L86pMmG6HdBHvGZa4g+TT2AHli/sh1qc7JPaivPIoUtj3DXt+W49s/HM+ /Puf7zBH2no3rbs8WRoVednJJ9j4AprJsl7i4qAThtyEOJz3RembyqSkm DxoQqD9bFjLR1b/8Ne7oj/+S3szjjn2dfV2dVyVxkhwxagopiw9yu9B88 1r5ERBK4H1hY2KL/+FVJDigsxCboSUBiUCOBI92ux+NGnw8i+L77wdJNg Q==; X-CSE-ConnectionGUID: 1uTu1Sm7TUm8FiiX37VEJw== X-CSE-MsgGUID: PwJQfiBOSxKwDjntgiJZrg== X-IronPort-AV: E=McAfee;i="6700,10204,11380"; a="43604628" X-IronPort-AV: E=Sophos;i="6.14,266,1736841600"; d="scan'208";a="43604628" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by orvoesa112.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Mar 2025 16:16:24 -0700 X-CSE-ConnectionGUID: BewV8rCOQeuMTEO0qpwK+w== X-CSE-MsgGUID: PUbPB3lBSMSUITyGOuN4CA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.14,266,1736841600"; d="scan'208";a="128354324" Received: from agluck-desk3.sc.intel.com ([172.25.222.70]) by ORVIESA003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Mar 2025 16:16:23 -0700 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: [PATCH v2 12/16] x86/resctrl: Build lookup table for package events Date: Fri, 21 Mar 2025 16:16:02 -0700 Message-ID: <20250321231609.57418-13-tony.luck@intel.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250321231609.57418-1-tony.luck@intel.com> References: <20250321231609.57418-1-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: quoted-printable Content-Type: text/plain; charset="utf-8" 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_aet.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/x86/kernel/cpu/resctrl/intel_aet.c b/arch/x86/kernel/cpu/= resctrl/intel_aet.c index 9ac912742ef1..bab8e4de26b3 100644 --- a/arch/x86/kernel/cpu/resctrl/intel_aet.c +++ b/arch/x86/kernel/cpu/resctrl/intel_aet.c @@ -39,6 +39,18 @@ enum pmt_event_id { PMT_NUM_EVENTS }; =20 +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 - Type for values for each event. * @EVT_U64: Integer up to 64 bits @@ -328,6 +340,9 @@ void rdt_get_intel_aet_mount(void) for (int i =3D 0; (*tentry)->evts[i].evt.name; i++) { evt =3D &(*tentry)->evts[i].evt; list_add_tail(&evt->list, &r->evt_list); + + evtinfo[evt->evtid].telem_entry =3D *tentry; + evtinfo[evt->evtid].pmt_event =3D &(*tentry)->evts[i]; ret =3D true; } if (!r->num_rmid) --=20 2.48.1