From patchwork Thu Mar 3 03:11:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gavin Shan X-Patchwork-Id: 12766987 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 83121C433EF for ; Thu, 3 Mar 2022 03:19:19 +0000 (UTC) Received: from localhost ([::1]:45732 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nPbzq-0006xf-KF for qemu-devel@archiver.kernel.org; Wed, 02 Mar 2022 22:19:18 -0500 Received: from eggs.gnu.org ([209.51.188.92]:43702) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nPbtI-0007Xj-EZ for qemu-devel@nongnu.org; Wed, 02 Mar 2022 22:12:33 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:26644) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nPbtG-0003eu-8s for qemu-devel@nongnu.org; Wed, 02 Mar 2022 22:12:32 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1646277149; 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=vRhaIRgCbGADfRTaEO4Z3ZTmpreYWc5KRSfB2lRcngM=; b=Oobq1F+YBSnS//MzxdNXNOfb8jL/+LFHGCeGddOTaMaClkD1oAJH2H8T/B5irCohEYNgB/ IF89rua73uboZsCuVQDvsyRb0BFl1reYycb4qcnWYSDl0rNjG17az2jy2Y0UuzXEr2hdBo liXLG9KRfeGQdNUpf/0AqtOqisiLYkk= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-288-iZy3Pq3ZOlON4mqN63280w-1; Wed, 02 Mar 2022 22:12:26 -0500 X-MC-Unique: iZy3Pq3ZOlON4mqN63280w-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 5A90351DC; Thu, 3 Mar 2022 03:12:25 +0000 (UTC) Received: from gshan.redhat.com (ovpn-13-119.pek2.redhat.com [10.72.13.119]) by smtp.corp.redhat.com (Postfix) with ESMTP id E3BC91006856; Thu, 3 Mar 2022 03:12:21 +0000 (UTC) From: Gavin Shan To: qemu-arm@nongnu.org Subject: [PATCH v2 2/3] hw/acpi/aml-build: Use existing CPU topology to build PPTT table Date: Thu, 3 Mar 2022 11:11:51 +0800 Message-Id: <20220303031152.145960-3-gshan@redhat.com> In-Reply-To: <20220303031152.145960-1-gshan@redhat.com> References: <20220303031152.145960-1-gshan@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 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=170.10.133.124; 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_H5=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: peter.maydell@linaro.org, drjones@redhat.com, richard.henderson@linaro.org, qemu-devel@nongnu.org, zhenyzha@redhat.com, wangyanan55@huawei.com, shan.gavin@gmail.com, imammedo@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, except the cluster IDs, has been populated in virt_possible_cpu_arch_ids() on arm/virt machine. This avoids to re-calculate the CPU topology by reusing the existing one in ms->possible_cpus. However, the cluster ID for the CPU instance has to be calculated dynamically because there is no corresponding field in struct CpuInstanceProperties. Currently, the only user of build_pptt() is arm/virt machine. Signed-off-by: Gavin Shan --- hw/acpi/aml-build.c | 106 ++++++++++++++++++++++++++++++++++---------- 1 file changed, 82 insertions(+), 24 deletions(-) diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c index 8966e16320..572cf5fc00 100644 --- a/hw/acpi/aml-build.c +++ b/hw/acpi/aml-build.c @@ -2002,18 +2002,27 @@ 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); + CPUArchIdList *cpus = ms->possible_cpus; + GQueue *socket_list = g_queue_new(); + GQueue *cluster_list = g_queue_new(); + GQueue *core_list = g_queue_new(); GQueue *list = g_queue_new(); guint pptt_start = table_data->len; guint parent_offset; guint length, i; - int uid = 0; - int socket; + int n, id, socket_id, cluster_id, core_id, thread_id; 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++) { + for (n = 0; n < cpus->len; n++) { + socket_id = cpus->cpus[n].props.socket_id; + if (g_queue_find(socket_list, GUINT_TO_POINTER(socket_id))) { + continue; + } + + g_queue_push_tail(socket_list, GUINT_TO_POINTER(socket_id)); g_queue_push_tail(list, GUINT_TO_POINTER(table_data->len - pptt_start)); build_processor_hierarchy_node( @@ -2023,65 +2032,114 @@ void build_pptt(GArray *table_data, BIOSLinker *linker, MachineState *ms, * of a physical package */ (1 << 0), - 0, socket, NULL, 0); + 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++) { + socket_id = GPOINTER_TO_UINT(g_queue_pop_head(socket_list)); + + for (n = 0; n < cpus->len; n++) { + if (cpus->cpus[n].props.socket_id != socket_id) { + continue; + } + + /* + * We have to calculate the cluster ID because it isn't + * available in the CPU instance properties. + */ + cluster_id = cpus->cpus[n].props.thread_id / + (ms->smp.cores * ms->smp.threads); + if (g_queue_find(cluster_list, GUINT_TO_POINTER(cluster_id))) { + continue; + } + + g_queue_push_tail(cluster_list, GUINT_TO_POINTER(cluster_id)); 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); + parent_offset, cluster_id, NULL, 0); } } } 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, - (0 << 0), /* not a physical package */ - parent_offset, core, NULL, 0); - } else { + if (!mc->smp_props.clusters_supported) { + socket_id = GPOINTER_TO_UINT(g_queue_pop_head(socket_list)); + } else { + cluster_id = GPOINTER_TO_UINT(g_queue_pop_head(cluster_list)); + } + + for (n = 0; n < cpus->len; n++) { + if (!mc->smp_props.clusters_supported && + cpus->cpus[n].props.socket_id != socket_id) { + continue; + } + + /* + * We have to calculate the cluster ID because it isn't + * available in the CPU instance properties. + */ + id = cpus->cpus[n].props.thread_id / + (ms->smp.cores * ms->smp.threads); + if (mc->smp_props.clusters_supported && id != cluster_id) { + continue; + } + + core_id = cpus->cpus[n].props.core_id; + if (ms->smp.threads <= 1) { build_processor_hierarchy_node( table_data, (1 << 1) | /* ACPI Processor ID valid */ (1 << 3), /* Node is a Leaf */ - parent_offset, uid++, NULL, 0); + parent_offset, core_id, NULL, 0); + continue; } + + if (g_queue_find(core_list, GUINT_TO_POINTER(core_id))) { + continue; + } + + g_queue_push_tail(core_list, GUINT_TO_POINTER(core_id)); + 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, 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++) { + core_id = GPOINTER_TO_UINT(g_queue_pop_head(core_list)); + + for (n = 0; n < cpus->len; n++) { + if (cpus->cpus[n].props.core_id != core_id) { + continue; + } + + thread_id = cpus->cpus[n].props.thread_id; 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); + parent_offset, thread_id, NULL, 0); } } g_queue_free(list); + g_queue_free(core_list); + g_queue_free(cluster_list); + g_queue_free(socket_list); acpi_table_end(linker, &table); }