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=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 588B1CA9EA0 for ; Mon, 28 Oct 2019 08:00:20 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2C94020650 for ; Mon, 28 Oct 2019 08:00:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2C94020650 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:51624 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iOzwo-0007da-DC for qemu-devel@archiver.kernel.org; Mon, 28 Oct 2019 04:00:18 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:48789) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iOzpb-00018F-Cf for qemu-devel@nongnu.org; Mon, 28 Oct 2019 03:52:52 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iOzpa-0002yp-0T for qemu-devel@nongnu.org; Mon, 28 Oct 2019 03:52:51 -0400 Received: from mga04.intel.com ([192.55.52.120]:47960) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iOzpZ-0002p5-PD for qemu-devel@nongnu.org; Mon, 28 Oct 2019 03:52:49 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 28 Oct 2019 00:52:49 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,239,1569308400"; d="scan'208";a="224558797" Received: from tao-optiplex-7060.sh.intel.com ([10.239.159.36]) by fmsmga004.fm.intel.com with ESMTP; 28 Oct 2019 00:52:47 -0700 From: Tao Xu To: mst@redhat.com, imammedo@redhat.com, eblake@redhat.com, ehabkost@redhat.com, marcel.apfelbaum@gmail.com, armbru@redhat.com, mdroth@linux.vnet.ibm.com, thuth@redhat.com, lvivier@redhat.com Subject: [PATCH v14 09/11] hmat acpi: Build System Locality Latency and Bandwidth Information Structure(s) Date: Mon, 28 Oct 2019 15:52:18 +0800 Message-Id: <20191028075220.25673-10-tao3.xu@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191028075220.25673-1-tao3.xu@intel.com> References: <20191028075220.25673-1-tao3.xu@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 192.55.52.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jingqi.liu@intel.com, tao3.xu@intel.com, fan.du@intel.com, qemu-devel@nongnu.org, jonathan.cameron@huawei.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Liu Jingqi This structure describes the memory access latency and bandwidth information from various memory access initiator proximity domains. The latency and bandwidth numbers represented in this structure correspond to rated latency and bandwidth for the platform. The software could use this information as hint for optimization. Signed-off-by: Liu Jingqi Signed-off-by: Tao Xu --- No changes in v14. Changes in v13: - Calculate the entries in a new patch. --- hw/acpi/hmat.c | 96 +++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 95 insertions(+), 1 deletion(-) diff --git a/hw/acpi/hmat.c b/hw/acpi/hmat.c index c595098ba7..6ec1310e62 100644 --- a/hw/acpi/hmat.c +++ b/hw/acpi/hmat.c @@ -27,6 +27,7 @@ #include "qemu/osdep.h" #include "sysemu/numa.h" #include "hw/acpi/hmat.h" +#include "qemu/error-report.h" /* * ACPI 6.3: @@ -67,11 +68,81 @@ static void build_hmat_mpda(GArray *table_data, uint16_t flags, build_append_int_noprefix(table_data, 0, 8); } +/* + * ACPI 6.3: 5.2.27.4 System Locality Latency and Bandwidth Information + * Structure: Table 5-146 + */ +static void build_hmat_lb(GArray *table_data, HMAT_LB_Info *hmat_lb, + uint32_t num_initiator, uint32_t num_target, + uint32_t *initiator_list) +{ + int i; + uint16_t *lb_data; + uint32_t base; + /* + * Length in bytes for entire structure, including 32 bytes of + * fixed length, length of initiator proximity domain list, + * length of target proximity domain list and length of entries + * provides latency/bandwidth values. + */ + uint32_t lb_length = 32 + 4 * num_initiator + 4 * num_target + + 2 * num_initiator * num_target; + + /* Type */ + build_append_int_noprefix(table_data, 1, 2); + /* Reserved */ + build_append_int_noprefix(table_data, 0, 2); + /* Length */ + build_append_int_noprefix(table_data, lb_length, 4); + /* Flags: Bits [3:0] Memory Hierarchy, Bits[7:4] Reserved */ + assert(!(hmat_lb->hierarchy >> 4)); + build_append_int_noprefix(table_data, hmat_lb->hierarchy, 1); + /* Data Type */ + build_append_int_noprefix(table_data, hmat_lb->data_type, 1); + /* Reserved */ + build_append_int_noprefix(table_data, 0, 2); + /* Number of Initiator Proximity Domains (s) */ + build_append_int_noprefix(table_data, num_initiator, 4); + /* Number of Target Proximity Domains (t) */ + build_append_int_noprefix(table_data, num_target, 4); + /* Reserved */ + build_append_int_noprefix(table_data, 0, 4); + + if (hmat_lb->data_type <= HMAT_LB_DATA_WRITE_LATENCY) { + base = hmat_lb->base_latency; + lb_data = hmat_lb->entry_latency; + } else { + base = hmat_lb->base_bandwidth; + lb_data = hmat_lb->entry_bandwidth; + } + + /* Entry Base Unit */ + build_append_int_noprefix(table_data, base, 8); + + /* Initiator Proximity Domain List */ + for (i = 0; i < num_initiator; i++) { + build_append_int_noprefix(table_data, initiator_list[i], 4); + } + + /* Target Proximity Domain List */ + for (i = 0; i < num_target; i++) { + build_append_int_noprefix(table_data, i, 4); + } + + /* Latency or Bandwidth Entries */ + for (i = 0; i < num_initiator * num_target; i++) { + build_append_int_noprefix(table_data, lb_data[i], 2); + } +} + /* Build HMAT sub table structures */ static void hmat_build_table_structs(GArray *table_data, NumaState *numa_state) { uint16_t flags; - int i; + uint32_t num_initiator = 0; + uint32_t initiator_list[MAX_NODES]; + int i, hierarchy, type; + HMAT_LB_Info *hmat_lb; for (i = 0; i < numa_state->num_nodes; i++) { flags = 0; @@ -82,6 +153,29 @@ static void hmat_build_table_structs(GArray *table_data, NumaState *numa_state) build_hmat_mpda(table_data, flags, numa_state->nodes[i].initiator, i); } + + for (i = 0; i < numa_state->num_nodes; i++) { + if (numa_state->nodes[i].has_cpu) { + initiator_list[num_initiator++] = i; + } + } + + /* + * ACPI 6.3: 5.2.27.4 System Locality Latency and Bandwidth Information + * Structure: Table 5-146 + */ + for (hierarchy = HMAT_LB_MEM_MEMORY; + hierarchy <= HMAT_LB_MEM_CACHE_3RD_LEVEL; hierarchy++) { + for (type = HMAT_LB_DATA_ACCESS_LATENCY; + type <= HMAT_LB_DATA_WRITE_BANDWIDTH; type++) { + hmat_lb = numa_state->hmat_lb[hierarchy][type]; + + if (hmat_lb) { + build_hmat_lb(table_data, hmat_lb, num_initiator, + numa_state->num_nodes, initiator_list); + } + } + } } void build_hmat(GArray *table_data, BIOSLinker *linker, NumaState *numa_state) -- 2.20.1