From patchwork Fri Jul 1 11:50:24 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Igor Mammedov X-Patchwork-Id: 9209819 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EA71F6075F for ; Fri, 1 Jul 2016 12:02:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DAE68286A1 for ; Fri, 1 Jul 2016 12:02:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CF2E3286AA; Fri, 1 Jul 2016 12:02:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4C380286A1 for ; Fri, 1 Jul 2016 12:02:53 +0000 (UTC) Received: from localhost ([::1]:33080 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bIx9o-0004JU-8l for patchwork-qemu-devel@patchwork.kernel.org; Fri, 01 Jul 2016 08:02:52 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48990) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bIwxy-0006X0-3D for qemu-devel@nongnu.org; Fri, 01 Jul 2016 07:50:39 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bIwxv-0006vp-Ov for qemu-devel@nongnu.org; Fri, 01 Jul 2016 07:50:37 -0400 Received: from mx1.redhat.com ([209.132.183.28]:58755) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bIwxv-0006vg-6k for qemu-devel@nongnu.org; Fri, 01 Jul 2016 07:50:35 -0400 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id AF384C003556; Fri, 1 Jul 2016 11:50:34 +0000 (UTC) Received: from dell-r430-03.lab.eng.brq.redhat.com (dell-r430-03.lab.eng.brq.redhat.com [10.34.112.60]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u61BoSdO007876; Fri, 1 Jul 2016 07:50:33 -0400 From: Igor Mammedov To: qemu-devel@nongnu.org Date: Fri, 1 Jul 2016 13:50:24 +0200 Message-Id: <1467373826-110305-4-git-send-email-imammedo@redhat.com> In-Reply-To: <1467373826-110305-1-git-send-email-imammedo@redhat.com> References: <1467373826-110305-1-git-send-email-imammedo@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Fri, 01 Jul 2016 11:50:34 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v3 3/5] numa: reduce code duplication by adding helper numa_get_node_for_cpu() X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: marcel@redhat.com, peter.maydell@linaro.org, zhaoshenglong@huawei.com, david@gibson.dropbear.id.au, mst@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Replace repeated pattern for (i = 0; i < nb_numa_nodes; i++) { if (test_bit(idx, numa_info[i].node_cpu)) { ... break; with a helper function to lookup numa node index for cpu. Suggested-by: Michael S. Tsirkin Signed-off-by: Igor Mammedov Reviewed-by: David Gibson --- hw/arm/virt-acpi-build.c | 6 ++---- hw/arm/virt.c | 7 +++---- hw/i386/acpi-build.c | 7 ++----- hw/i386/pc.c | 8 +++----- hw/ppc/spapr_cpu_core.c | 6 ++---- include/sysemu/numa.h | 3 +++ numa.c | 12 ++++++++++++ 7 files changed, 27 insertions(+), 22 deletions(-) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index 28fc59c..5923b3d 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -426,11 +426,9 @@ build_srat(GArray *table_data, BIOSLinker *linker, VirtGuestInfo *guest_info) uint32_t *cpu_node = g_malloc0(guest_info->smp_cpus * sizeof(uint32_t)); for (i = 0; i < guest_info->smp_cpus; i++) { - for (j = 0; j < nb_numa_nodes; j++) { - if (test_bit(i, numa_info[j].node_cpu)) { + j = numa_get_node_for_cpu(i); + if (j < nb_numa_nodes) { cpu_node[i] = j; - break; - } } } diff --git a/hw/arm/virt.c b/hw/arm/virt.c index c5c125e..b066f15 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -411,10 +411,9 @@ static void fdt_add_cpu_nodes(const VirtBoardInfo *vbi) armcpu->mp_affinity); } - for (i = 0; i < nb_numa_nodes; i++) { - if (test_bit(cpu, numa_info[i].node_cpu)) { - qemu_fdt_setprop_cell(vbi->fdt, nodename, "numa-node-id", i); - } + i = numa_get_node_for_cpu(cpu); + if (i < nb_numa_nodes) { + qemu_fdt_setprop_cell(vbi->fdt, nodename, "numa-node-id", i); } g_free(nodename); diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 5a594be..60be550 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -2344,18 +2344,15 @@ build_srat(GArray *table_data, BIOSLinker *linker, MachineState *machine) srat->reserved1 = cpu_to_le32(1); for (i = 0; i < apic_ids->len; i++) { - int j; + int j = numa_get_node_for_cpu(i); int apic_id = apic_ids->cpus[i].arch_id; core = acpi_data_push(table_data, sizeof *core); core->type = ACPI_SRAT_PROCESSOR_APIC; core->length = sizeof(*core); core->local_apic_id = apic_id; - for (j = 0; j < nb_numa_nodes; j++) { - if (test_bit(i, numa_info[j].node_cpu)) { + if (j < nb_numa_nodes) { core->proximity_lo = j; - break; - } } memset(core->proximity_hi, 0, 3); core->local_sapic_eid = 0; diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 44a8f3b..fef34e7 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -780,11 +780,9 @@ static FWCfgState *bochs_bios_init(AddressSpace *as, PCMachineState *pcms) for (i = 0; i < max_cpus; i++) { unsigned int apic_id = x86_cpu_apic_id_from_index(i); assert(apic_id < pcms->apic_id_limit); - for (j = 0; j < nb_numa_nodes; j++) { - if (test_bit(i, numa_info[j].node_cpu)) { - numa_fw_cfg[apic_id + 1] = cpu_to_le64(j); - break; - } + j = numa_get_node_for_cpu(i); + if (j < nb_numa_nodes) { + numa_fw_cfg[apic_id + 1] = cpu_to_le64(j); } } for (i = 0; i < nb_numa_nodes; i++) { diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c index 3a5da09..030016c 100644 --- a/hw/ppc/spapr_cpu_core.c +++ b/hw/ppc/spapr_cpu_core.c @@ -69,11 +69,9 @@ void spapr_cpu_init(sPAPRMachineState *spapr, PowerPCCPU *cpu, Error **errp) } /* Set NUMA node for the added CPUs */ - for (i = 0; i < nb_numa_nodes; i++) { - if (test_bit(cs->cpu_index, numa_info[i].node_cpu)) { + i = numa_get_node_for_cpu(cs->cpu_index); + if (i < nb_numa_nodes) { cs->numa_node = i; - break; - } } xics_cpu_setup(spapr->icp, cpu); diff --git a/include/sysemu/numa.h b/include/sysemu/numa.h index bb184c9..4da808a 100644 --- a/include/sysemu/numa.h +++ b/include/sysemu/numa.h @@ -32,4 +32,7 @@ void numa_set_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node); void numa_unset_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node); uint32_t numa_get_node(ram_addr_t addr, Error **errp); +/* on success returns node index in numa_info, + * on failure returns nb_numa_nodes */ +int numa_get_node_for_cpu(int idx); #endif diff --git a/numa.c b/numa.c index 572712c..5790858 100644 --- a/numa.c +++ b/numa.c @@ -548,3 +548,15 @@ MemdevList *qmp_query_memdev(Error **errp) object_child_foreach(obj, query_memdev, &list); return list; } + +int numa_get_node_for_cpu(int idx) +{ + int i; + + for (i = 0; i < nb_numa_nodes; i++) { + if (test_bit(idx, numa_info[i].node_cpu)) { + break; + } + } + return i; +}