From patchwork Mon Apr 18 02:09:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gavin Shan X-Patchwork-Id: 12816205 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 9CDE7C433F5 for ; Mon, 18 Apr 2022 02:14:54 +0000 (UTC) Received: from localhost ([::1]:60272 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ngGuj-0001J0-R2 for qemu-devel@archiver.kernel.org; Sun, 17 Apr 2022 22:14:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56240) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ngGrY-0004tY-7w for qemu-devel@nongnu.org; Sun, 17 Apr 2022 22:11:36 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:27836) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ngGrW-000179-JA for qemu-devel@nongnu.org; Sun, 17 Apr 2022 22:11:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1650247894; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=/Spvtr67Ky8pvQzdT7WFb/iOb0ALE3RXhJyn/vk8rwI=; b=acT9SjD6u6RBXvvPunEk5IthT74Hyd0gFhYVfd/8zgVUMApzHIYaqsurrElbAWyG0qc2TW xiwBHUFQN+JrWGGuJIItZ42adkqSShPf5aqEbpHprjX09DHGPQ3VVmlTVcYRV/6zTDz6PH kupp6J+ClnPZOMaW+gN5opXd2g2oMEg= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-671-40t5SJVwMJyj8mxmRdFjoA-1; Sun, 17 Apr 2022 22:11:28 -0400 X-MC-Unique: 40t5SJVwMJyj8mxmRdFjoA-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 7A29685A5BC; Mon, 18 Apr 2022 02:11:27 +0000 (UTC) Received: from gshan.redhat.com (ovpn-13-171.pek2.redhat.com [10.72.13.171]) by smtp.corp.redhat.com (Postfix) with ESMTP id 590F41121333; Mon, 18 Apr 2022 02:11:19 +0000 (UTC) From: Gavin Shan To: qemu-arm@nongnu.org Subject: [PATCH v6 4/4] hw/acpi/aml-build: Use existing CPU topology to build PPTT table Date: Mon, 18 Apr 2022 10:09:20 +0800 Message-Id: <20220418020920.144263-5-gshan@redhat.com> In-Reply-To: <20220418020920.144263-1-gshan@redhat.com> References: <20220418020920.144263-1-gshan@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=gshan@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.129.124; envelope-from=gshan@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: eduardo@habkost.net, peter.maydell@linaro.org, drjones@redhat.com, shan.gavin@gmail.com, mst@redhat.com, thuth@redhat.com, armbru@redhat.com, richard.henderson@linaro.org, qemu-devel@nongnu.org, f4bug@amsat.org, wangyanan55@huawei.com, pbonzini@redhat.com, Jonathan.Cameron@Huawei.com, ani@anisinha.ca, imammedo@redhat.com, lvivier@redhat.com, eblake@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" When the PPTT table is built, the CPU topology is re-calculated, but it's unecessary because the CPU topology has been populated in virt_possible_cpu_arch_ids() on arm/virt machine. This reworks build_pptt() to avoid by reusing the existing one in ms->possible_cpus. Currently, the only user of build_pptt() is arm/virt machine. Signed-off-by: Gavin Shan --- hw/acpi/aml-build.c | 105 ++++++++++++++++++-------------------------- 1 file changed, 43 insertions(+), 62 deletions(-) diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c index 4086879ebf..2bd062a52b 100644 --- a/hw/acpi/aml-build.c +++ b/hw/acpi/aml-build.c @@ -2002,86 +2002,67 @@ void build_pptt(GArray *table_data, BIOSLinker *linker, MachineState *ms, const char *oem_id, const char *oem_table_id) { MachineClass *mc = MACHINE_GET_CLASS(ms); - GQueue *list = g_queue_new(); - guint pptt_start = table_data->len; - guint parent_offset; - guint length, i; - int uid = 0; - int socket; + CPUArchIdList *cpus = ms->possible_cpus; + int64_t socket_id = -1, cluster_id = -1, core_id = -1; + uint32_t socket_offset = 0, cluster_offset = 0, core_offset = 0; + uint32_t pptt_start = table_data->len; + int n; AcpiTable table = { .sig = "PPTT", .rev = 2, .oem_id = oem_id, .oem_table_id = oem_table_id }; acpi_table_begin(&table, table_data); - for (socket = 0; socket < ms->smp.sockets; socket++) { - g_queue_push_tail(list, - GUINT_TO_POINTER(table_data->len - pptt_start)); - build_processor_hierarchy_node( - table_data, - /* - * Physical package - represents the boundary - * of a physical package - */ - (1 << 0), - 0, socket, NULL, 0); - } + /* + * This works with the assumption that cpus[n].props.*_id has been + * sorted from top to down levels in mc->possible_cpu_arch_ids(). + * Otherwise, the unexpected and duplicate containers will be created. + */ + for (n = 0; n < cpus->len; n++) { + if (cpus->cpus[n].props.socket_id != socket_id) { + socket_id = cpus->cpus[n].props.socket_id; + cluster_id = -1; + core_id = -1; + socket_offset = table_data->len - pptt_start; + build_processor_hierarchy_node(table_data, + (1 << 0), /* Physical package */ + 0, socket_id, NULL, 0); + } - if (mc->smp_props.clusters_supported) { - length = g_queue_get_length(list); - for (i = 0; i < length; i++) { - int cluster; - - parent_offset = GPOINTER_TO_UINT(g_queue_pop_head(list)); - for (cluster = 0; cluster < ms->smp.clusters; cluster++) { - g_queue_push_tail(list, - GUINT_TO_POINTER(table_data->len - pptt_start)); - build_processor_hierarchy_node( - table_data, - (0 << 0), /* not a physical package */ - parent_offset, cluster, NULL, 0); + if (mc->smp_props.clusters_supported) { + if (cpus->cpus[n].props.cluster_id != cluster_id) { + cluster_id = cpus->cpus[n].props.cluster_id; + core_id = -1; + cluster_offset = table_data->len - pptt_start; + build_processor_hierarchy_node(table_data, + (0 << 0), /* Not a physical package */ + socket_offset, cluster_id, NULL, 0); } + } else { + cluster_offset = socket_offset; } - } - length = g_queue_get_length(list); - for (i = 0; i < length; i++) { - int core; - - parent_offset = GPOINTER_TO_UINT(g_queue_pop_head(list)); - for (core = 0; core < ms->smp.cores; core++) { - if (ms->smp.threads > 1) { - g_queue_push_tail(list, - GUINT_TO_POINTER(table_data->len - pptt_start)); - build_processor_hierarchy_node( - table_data, + if (ms->smp.threads <= 1) { + build_processor_hierarchy_node(table_data, + (1 << 1) | /* ACPI Processor ID valid */ + (1 << 3), /* Node is a Leaf */ + cluster_offset, n, NULL, 0); + } else { + if (cpus->cpus[n].props.core_id != core_id) { + core_id = cpus->cpus[n].props.core_id; + core_offset = table_data->len - pptt_start; + build_processor_hierarchy_node(table_data, (0 << 0), /* not a physical package */ - parent_offset, core, NULL, 0); - } else { - build_processor_hierarchy_node( - table_data, - (1 << 1) | /* ACPI Processor ID valid */ - (1 << 3), /* Node is a Leaf */ - parent_offset, uid++, NULL, 0); + cluster_offset, core_id, NULL, 0); } - } - } - - length = g_queue_get_length(list); - for (i = 0; i < length; i++) { - int thread; - parent_offset = GPOINTER_TO_UINT(g_queue_pop_head(list)); - for (thread = 0; thread < ms->smp.threads; thread++) { - build_processor_hierarchy_node( - table_data, + build_processor_hierarchy_node(table_data, (1 << 1) | /* ACPI Processor ID valid */ (1 << 2) | /* Processor is a Thread */ (1 << 3), /* Node is a Leaf */ - parent_offset, uid++, NULL, 0); + core_offset, n, NULL, 0); } } - g_queue_free(list); acpi_table_end(linker, &table); }