From patchwork Thu Nov 30 14:41:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhao Liu X-Patchwork-Id: 13474515 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="DDMxUwVD" Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1B3E385 for ; Thu, 30 Nov 2023 06:34:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1701354850; x=1732890850; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=IhpodbfJau6szIdQazmb+IK5Vtn7KUNNpXNSlzloW+Q=; b=DDMxUwVDVQzq66QkJ4aOUygoO8SDxvFuGJ/4Er5sk3LDA3hglk1sYARQ wQ3A1B+eo8pRZKd6nUZ+Xu1vQCbuNASN4cuhz+IDTb8pDDkcUfaffT/uF jmRhC7x6WImSGTWiceIGxuB/LSB8pKRxNdKaQg2VBSPOzsGYfYkZZ8VEY XN/+eRnLCnc49VUsDVOvxEjtxQamKwHvx6RyvYO3YVdnS95mxGSDqP0Y+ WaJeZNs0ItEc2PGJp9EJyUuzAKhlubUhqBFnrWBB4wGKgsDXm+hb+C9k9 eKwW16iaTcpy8ZcILMawbqgu1YgdcgVUsTg8/TSI0ibhaGQj2535X0Jom g==; X-IronPort-AV: E=McAfee;i="6600,9927,10910"; a="479532145" X-IronPort-AV: E=Sophos;i="6.04,239,1695711600"; d="scan'208";a="479532145" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Nov 2023 06:34:09 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10910"; a="942730068" X-IronPort-AV: E=Sophos;i="6.04,239,1695711600"; d="scan'208";a="942730068" Received: from liuzhao-optiplex-7080.sh.intel.com ([10.239.160.36]) by orsmga005.jf.intel.com with ESMTP; 30 Nov 2023 06:34:00 -0800 From: Zhao Liu To: Paolo Bonzini , =?utf-8?q?Alex_Benn=C3=A9e?= , =?utf-8?q?Philippe_M?= =?utf-8?q?athieu-Daud=C3=A9?= , Eduardo Habkost , Marcel Apfelbaum , Yanan Wang , Richard Henderson , "Michael S . Tsirkin" , Jason Wang , Nicholas Piggin , Daniel Henrique Barboza , Igor Mammedov , =?utf-8?q?C=C3=A9dric_Le_Goater?= , =?utf-8?b?RnLDqWTDqXJp?= =?utf-8?b?YyBCYXJyYXQ=?= , David Gibson , Harsh Prateek Bora , Stefano Stabellini , Anthony Perard , Paul Durrant , Gerd Hoffmann , Peter Maydell , Alistair Francis , "Edgar E . Iglesias" , =?utf-8?q?Daniel_P_=2E_Ber?= =?utf-8?q?rang=C3=A9?= , Bin Meng , Palmer Dabbelt , Weiwei Li , Liu Zhiwei , qemu-devel@nongnu.org, kvm@vger.kernel.org, qemu-ppc@nongnu.org, xen-devel@lists.xenproject.org, qemu-arm@nongnu.org, qemu-riscv@nongnu.org, qemu-s390x@nongnu.org Cc: Nina Schoetterl-Glausch , Thomas Huth , Zhiyuan Lv , Zhenyu Wang , Yongwei Ma , Zhao Liu Subject: [RFC 23/41] hw/cpu/die: Abstract cpu-die level as topology device Date: Thu, 30 Nov 2023 22:41:45 +0800 Message-Id: <20231130144203.2307629-24-zhao1.liu@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231130144203.2307629-1-zhao1.liu@linux.intel.com> References: <20231130144203.2307629-1-zhao1.liu@linux.intel.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Zhao Liu Abstract die level as a topology device "cpu-die" to allow user to create die level topology from cli and later the cpu-dies could be added into topology tree. In addition, mark the cpu-die as DEVICE_CATEGORY_CPU_DEF category to indicate it belongs to the basic CPU definition and should be created from cli before board initialization. Signed-off-by: Zhao Liu --- MAINTAINERS | 2 ++ hw/cpu/die.c | 46 ++++++++++++++++++++++++++++++++++++++++++++ hw/cpu/meson.build | 2 +- include/hw/cpu/die.h | 38 ++++++++++++++++++++++++++++++++++++ 4 files changed, 87 insertions(+), 1 deletion(-) create mode 100644 hw/cpu/die.c create mode 100644 include/hw/cpu/die.h diff --git a/MAINTAINERS b/MAINTAINERS index 89e350866d6a..91d0936edb32 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1863,6 +1863,7 @@ F: hw/core/machine-smp.c F: hw/core/null-machine.c F: hw/core/numa.c F: hw/cpu/cluster.c +F: hw/cpu/die.c F: qapi/machine.json F: qapi/machine-common.json F: qapi/machine-target.json @@ -1870,6 +1871,7 @@ F: include/hw/boards.h F: include/hw/core/cpu.h F: include/hw/core/cpu-topo.h F: include/hw/cpu/cluster.h +F: include/hw/cpu/die.h F: include/sysemu/numa.h F: tests/unit/test-smp-parse.c T: git https://gitlab.com/ehabkost/qemu.git machine-next diff --git a/hw/cpu/die.c b/hw/cpu/die.c new file mode 100644 index 000000000000..06c4f7cc8fa2 --- /dev/null +++ b/hw/cpu/die.c @@ -0,0 +1,46 @@ +/* + * CPU die abstract device + * + * Copyright (c) 2023 Intel Corporation + * Author: Zhao Liu + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, + * or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +#include "qemu/osdep.h" +#include "hw/cpu/die.h" + +static void cpu_die_class_init(ObjectClass *oc, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(oc); + CPUTopoClass *tc = CPU_TOPO_CLASS(oc); + + set_bit(DEVICE_CATEGORY_CPU_DEF, dc->categories); + + tc->level = CPU_TOPO_DIE; +} + +static const TypeInfo cpu_die_type_info = { + .name = TYPE_CPU_DIE, + .parent = TYPE_CPU_TOPO, + .class_init = cpu_die_class_init, + .instance_size = sizeof(CPUDie), +}; + +static void cpu_die_register_types(void) +{ + type_register_static(&cpu_die_type_info); +} + +type_init(cpu_die_register_types) diff --git a/hw/cpu/meson.build b/hw/cpu/meson.build index 6d319947ca0b..e685fe1c7d8a 100644 --- a/hw/cpu/meson.build +++ b/hw/cpu/meson.build @@ -1,4 +1,4 @@ -system_ss.add(files('core.c', 'cluster.c')) +system_ss.add(files('core.c', 'cluster.c', 'die.c')) system_ss.add(when: 'CONFIG_ARM11MPCORE', if_true: files('arm11mpcore.c')) system_ss.add(when: 'CONFIG_REALVIEW', if_true: files('realview_mpcore.c')) diff --git a/include/hw/cpu/die.h b/include/hw/cpu/die.h new file mode 100644 index 000000000000..4c68786b5f2f --- /dev/null +++ b/include/hw/cpu/die.h @@ -0,0 +1,38 @@ +/* + * CPU die abstract device + * + * Copyright (c) 2023 Intel Corporation + * Author: Zhao Liu + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, + * or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +#ifndef HW_CPU_DIE_H +#define HW_CPU_DIE_H + +#include "hw/core/cpu-topo.h" +#include "hw/qdev-core.h" + +#define TYPE_CPU_DIE "cpu-die" + +OBJECT_DECLARE_SIMPLE_TYPE(CPUDie, CPU_DIE) + +struct CPUDie { + /*< private >*/ + CPUTopoState obj; + + /*< public >*/ +}; + +#endif /* HW_CPU_DIE_H */