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 X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D50CFC00319 for ; Wed, 27 Feb 2019 22:50:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AA19B217F5 for ; Wed, 27 Feb 2019 22:50:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730675AbfB0Wuu (ORCPT ); Wed, 27 Feb 2019 17:50:50 -0500 Received: from mga03.intel.com ([134.134.136.65]:4751 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730582AbfB0Wun (ORCPT ); Wed, 27 Feb 2019 17:50:43 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 27 Feb 2019 14:50:34 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,420,1544515200"; d="scan'208";a="121349425" Received: from unknown (HELO localhost.lm.intel.com) ([10.232.112.69]) by orsmga008.jf.intel.com with ESMTP; 27 Feb 2019 14:50:33 -0800 From: Keith Busch To: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org Cc: Greg Kroah-Hartman , Rafael Wysocki , Dave Hansen , Dan Williams , Keith Busch Subject: [PATCHv7 08/10] acpi/hmat: Register performance attributes Date: Wed, 27 Feb 2019 15:50:36 -0700 Message-Id: <20190227225038.20438-9-keith.busch@intel.com> X-Mailer: git-send-email 2.13.6 In-Reply-To: <20190227225038.20438-1-keith.busch@intel.com> References: <20190227225038.20438-1-keith.busch@intel.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Save the best performace access attributes and register these with the memory's node if HMAT provides the locality table. While HMAT does make it possible to know performance for all possible initiator-target pairings, we export only the local pairings at this time. Acked-by: Rafael J. Wysocki Signed-off-by: Keith Busch --- drivers/acpi/hmat/Kconfig | 5 ++++- drivers/acpi/hmat/hmat.c | 10 +++++++++- 2 files changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/hmat/Kconfig b/drivers/acpi/hmat/Kconfig index 13cddd612a52..95a29964dbea 100644 --- a/drivers/acpi/hmat/Kconfig +++ b/drivers/acpi/hmat/Kconfig @@ -2,7 +2,10 @@ config ACPI_HMAT bool "ACPI Heterogeneous Memory Attribute Table Support" depends on ACPI_NUMA + select HMEM_REPORTING help If set, this option has the kernel parse and report the platform's ACPI HMAT (Heterogeneous Memory Attributes Table), - and register memory initiators with their targets. + register memory initiators with their targets, and export + performance attributes through the node's sysfs device if + provided. diff --git a/drivers/acpi/hmat/hmat.c b/drivers/acpi/hmat/hmat.c index bb6a11653729..5b469c98a454 100644 --- a/drivers/acpi/hmat/hmat.c +++ b/drivers/acpi/hmat/hmat.c @@ -549,12 +549,20 @@ static __init void hmat_register_target_initiators(struct memory_target *target) } } +static __init void hmat_register_target_perf(struct memory_target *target) +{ + unsigned mem_nid = pxm_to_node(target->memory_pxm); + node_set_perf_attrs(mem_nid, &target->hmem_attrs, 0); +} + static __init void hmat_register_targets(void) { struct memory_target *target; - list_for_each_entry(target, &targets, node) + list_for_each_entry(target, &targets, node) { hmat_register_target_initiators(target); + hmat_register_target_perf(target); + } } static __init void hmat_free_structures(void) -- 2.14.4