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Re: [Qemu-arm] [PATCH v5 01/16] hw/cpu: introduce CPU clusters
From: |
Edgar E. Iglesias |
Subject: |
Re: [Qemu-arm] [PATCH v5 01/16] hw/cpu: introduce CPU clusters |
Date: |
Tue, 13 Nov 2018 11:38:24 +0100 |
User-agent: |
Mutt/1.9.4 (2018-02-28) |
On Sat, Nov 10, 2018 at 09:11:32AM +0100, Luc Michel wrote:
> This commit adds the cpu-cluster type. It aims at gathering CPUs from
> the same cluster in a machine.
>
> For now it only has a `cluster-id` property.
>
> Signed-off-by: Luc Michel <address@hidden>
> Reviewed-by: Alistair Francis <address@hidden>
> Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
> Tested-by: Philippe Mathieu-Daudé <address@hidden>
Reviewed-by: Edgar E. Iglesias <address@hidden>
> ---
> include/hw/cpu/cluster.h | 38 ++++++++++++++++++++++++++
> hw/cpu/cluster.c | 59 ++++++++++++++++++++++++++++++++++++++++
> MAINTAINERS | 2 ++
> hw/cpu/Makefile.objs | 2 +-
> 4 files changed, 100 insertions(+), 1 deletion(-)
> create mode 100644 include/hw/cpu/cluster.h
> create mode 100644 hw/cpu/cluster.c
>
> diff --git a/include/hw/cpu/cluster.h b/include/hw/cpu/cluster.h
> new file mode 100644
> index 0000000000..11f50d5f6b
> --- /dev/null
> +++ b/include/hw/cpu/cluster.h
> @@ -0,0 +1,38 @@
> +/*
> + * QEMU CPU cluster
> + *
> + * Copyright (c) 2018 GreenSocs SAS
> + *
> + * 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
> + * <http://www.gnu.org/licenses/gpl-2.0.html>
> + */
> +#ifndef HW_CPU_CLUSTER_H
> +#define HW_CPU_CLUSTER_H
> +
> +#include "qemu/osdep.h"
> +#include "hw/qdev.h"
> +
> +#define TYPE_CPU_CLUSTER "cpu-cluster"
> +#define CPU_CLUSTER(obj) \
> + OBJECT_CHECK(CPUClusterState, (obj), TYPE_CPU_CLUSTER)
> +
> +typedef struct CPUClusterState {
> + /*< private >*/
> + DeviceState parent_obj;
> +
> + /*< public >*/
> + uint32_t cluster_id;
> +} CPUClusterState;
> +
> +#endif
> diff --git a/hw/cpu/cluster.c b/hw/cpu/cluster.c
> new file mode 100644
> index 0000000000..e0ffd76152
> --- /dev/null
> +++ b/hw/cpu/cluster.c
> @@ -0,0 +1,59 @@
> +/*
> + * QEMU CPU cluster
> + *
> + * Copyright (c) 2018 GreenSocs SAS
> + *
> + * 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
> + * <http://www.gnu.org/licenses/gpl-2.0.html>
> + */
> +
> +#include "qemu/osdep.h"
> +#include "hw/cpu/cluster.h"
> +#include "qapi/error.h"
> +#include "qemu/module.h"
> +
> +static void cpu_cluster_init(Object *obj)
> +{
> + static uint32_t cluster_id_auto_increment;
> + CPUClusterState *cluster = CPU_CLUSTER(obj);
> +
> + cluster->cluster_id = cluster_id_auto_increment++;
> +}
> +
> +static Property cpu_cluster_properties[] = {
> + DEFINE_PROP_UINT32("cluster-id", CPUClusterState, cluster_id, 0),
> + DEFINE_PROP_END_OF_LIST()
> +};
> +
> +static void cpu_cluster_class_init(ObjectClass *klass, void *data)
> +{
> + DeviceClass *dc = DEVICE_CLASS(klass);
> +
> + dc->props = cpu_cluster_properties;
> +}
> +
> +static const TypeInfo cpu_cluster_type_info = {
> + .name = TYPE_CPU_CLUSTER,
> + .parent = TYPE_DEVICE,
> + .instance_size = sizeof(CPUClusterState),
> + .instance_init = cpu_cluster_init,
> + .class_init = cpu_cluster_class_init,
> +};
> +
> +static void cpu_cluster_register_types(void)
> +{
> + type_register_static(&cpu_cluster_type_info);
> +}
> +
> +type_init(cpu_cluster_register_types)
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 126fe0be7e..8e20b0e672 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -1022,11 +1022,13 @@ Machine core
> M: Eduardo Habkost <address@hidden>
> M: Marcel Apfelbaum <address@hidden>
> S: Supported
> F: hw/core/machine.c
> F: hw/core/null-machine.c
> +F: hw/cpu/cluster.c
> F: include/hw/boards.h
> +F: include/hw/cpu/cluster.h
> T: git git://github.com/ehabkost/qemu.git machine-next
>
> Xtensa Machines
> ---------------
> sim
> diff --git a/hw/cpu/Makefile.objs b/hw/cpu/Makefile.objs
> index cd52d20b65..8db9e8a7b3 100644
> --- a/hw/cpu/Makefile.objs
> +++ b/hw/cpu/Makefile.objs
> @@ -1,5 +1,5 @@
> obj-$(CONFIG_ARM11MPCORE) += arm11mpcore.o
> obj-$(CONFIG_REALVIEW) += realview_mpcore.o
> obj-$(CONFIG_A9MPCORE) += a9mpcore.o
> obj-$(CONFIG_A15MPCORE) += a15mpcore.o
> -common-obj-y += core.o
> +common-obj-y += core.o cluster.o
> --
> 2.19.1
>
>
- Re: [Qemu-arm] [PATCH v5 03/16] gdbstub: add multiprocess support to '?' packets, (continued)
[Qemu-arm] [PATCH v5 10/16] gdbstub: add multiprocess support to 'D' packets, Luc Michel, 2018/11/10
[Qemu-arm] [PATCH v5 02/16] gdbstub: introduce GDB processes, Luc Michel, 2018/11/10
[Qemu-arm] [PATCH v5 07/16] gdbstub: add multiprocess support to (f|s)ThreadInfo and ThreadExtraInfo, Luc Michel, 2018/11/10
[Qemu-arm] [PATCH v5 04/16] gdbstub: add multiprocess support to 'H' and 'T' packets, Luc Michel, 2018/11/10
[Qemu-arm] [PATCH v5 01/16] hw/cpu: introduce CPU clusters, Luc Michel, 2018/11/10
- Re: [Qemu-arm] [PATCH v5 01/16] hw/cpu: introduce CPU clusters,
Edgar E. Iglesias <=
[Qemu-arm] [PATCH v5 12/16] gdbstub: add support for vAttach packets, Luc Michel, 2018/11/10
[Qemu-arm] [PATCH v5 06/16] gdbstub: add multiprocess support to 'sC' packets, Luc Michel, 2018/11/10
[Qemu-arm] [PATCH v5 11/16] gdbstub: add support for extended mode packet, Luc Michel, 2018/11/10
[Qemu-arm] [PATCH v5 05/16] gdbstub: add multiprocess support to vCont packets, Luc Michel, 2018/11/10
[Qemu-arm] [PATCH v5 14/16] gdbstub: gdb_set_stop_cpu: ignore request when process is not attached, Luc Michel, 2018/11/10
[Qemu-arm] [PATCH v5 16/16] arm/xlnx-zynqmp: put APUs and RPUs in separate CPU clusters, Luc Michel, 2018/11/10
[Qemu-arm] [PATCH v5 09/16] gdbstub: add multiprocess support to gdb_vm_state_change(), Luc Michel, 2018/11/10
[Qemu-arm] [PATCH v5 15/16] gdbstub: add multiprocess extension support, Luc Michel, 2018/11/10
[Qemu-arm] [PATCH v5 08/16] gdbstub: add multiprocess support to Xfer:features:read:, Luc Michel, 2018/11/10
[Qemu-arm] [PATCH v5 13/16] gdbstub: processes initialization on new peer connection, Luc Michel, 2018/11/10