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author | Rickard Green <rickard@erlang.org> | 2010-09-23 10:17:29 +0200 |
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committer | Rickard Green <rickard@erlang.org> | 2010-11-18 14:13:11 +0100 |
commit | 728b62363b9ec6248d14438f36adf03f7d737f89 (patch) | |
tree | 4dab7fb0582b89a26ebe1bed1a8c2b4b3e47b1c5 /erts/emulator/beam/erl_cpu_topology.h | |
parent | c4b78dcacf24f871cbd2ecc6375c3af2c229d299 (diff) | |
download | otp-728b62363b9ec6248d14438f36adf03f7d737f89.tar.gz otp-728b62363b9ec6248d14438f36adf03f7d737f89.tar.bz2 otp-728b62363b9ec6248d14438f36adf03f7d737f89.zip |
Move cpu topology functionality into erl_cpu_topology.[ch]
Diffstat (limited to 'erts/emulator/beam/erl_cpu_topology.h')
-rw-r--r-- | erts/emulator/beam/erl_cpu_topology.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_cpu_topology.h b/erts/emulator/beam/erl_cpu_topology.h new file mode 100644 index 0000000000..b83ddc25da --- /dev/null +++ b/erts/emulator/beam/erl_cpu_topology.h @@ -0,0 +1,94 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2010. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +/* + * Description: CPU topology and related functionality + * + * Author: Rickard Green + */ + +#ifndef ERL_CPU_TOPOLOGY_H__ +#define ERL_CPU_TOPOLOGY_H__ + +void erts_pre_early_init_cpu_topology(int *max_rg_p, + int *conf_p, + int *onln_p, + int *avail_p); +void erts_early_init_cpu_topology(int no_schedulers, + int *max_main_threads_p, + int max_reader_groups, + int *reader_groups_p); +void erts_init_cpu_topology(void); + + +#define ERTS_INIT_SCHED_BIND_TYPE_SUCCESS 0 +#define ERTS_INIT_SCHED_BIND_TYPE_NOT_SUPPORTED 1 +#define ERTS_INIT_SCHED_BIND_TYPE_ERROR_NO_CPU_TOPOLOGY 2 +#define ERTS_INIT_SCHED_BIND_TYPE_ERROR_NO_BAD_TYPE 3 + +int erts_init_scheduler_bind_type_string(char *how); + + +#define ERTS_INIT_CPU_TOPOLOGY_OK 0 +#define ERTS_INIT_CPU_TOPOLOGY_INVALID_ID 1 +#define ERTS_INIT_CPU_TOPOLOGY_INVALID_ID_RANGE 2 +#define ERTS_INIT_CPU_TOPOLOGY_INVALID_HIERARCHY 3 +#define ERTS_INIT_CPU_TOPOLOGY_INVALID_ID_TYPE 4 +#define ERTS_INIT_CPU_TOPOLOGY_INVALID_NODES 5 +#define ERTS_INIT_CPU_TOPOLOGY_MISSING_LID 6 +#define ERTS_INIT_CPU_TOPOLOGY_NOT_UNIQUE_LIDS 7 +#define ERTS_INIT_CPU_TOPOLOGY_NOT_UNIQUE_ENTITIES 8 +#define ERTS_INIT_CPU_TOPOLOGY_MISSING 9 + +int erts_init_cpu_topology_string(char *topology_str); + +void erts_sched_check_cpu_bind(ErtsSchedulerData *esdp); +#ifdef ERTS_SMP +void erts_sched_init_check_cpu_bind(ErtsSchedulerData *esdp); +void erts_sched_check_cpu_bind_prep_suspend(ErtsSchedulerData *esdp); +void erts_sched_check_cpu_bind_post_suspend(ErtsSchedulerData *esdp); +#endif + +int erts_update_cpu_info(void); + +Eterm erts_bind_schedulers(Process *c_p, Eterm how); +Eterm erts_get_schedulers_binds(Process *c_p); + +Eterm erts_get_reader_groups_map(Process *c_p); + +Eterm erts_set_cpu_topology(Process *c_p, Eterm term); +Eterm erts_get_cpu_topology_term(Process *c_p, Eterm which); + +int erts_update_cpu_info(void); +void erts_get_logical_processors(int *conf, int *onln, int *avail); + +int erts_sched_bind_atthrcreate_prepare(void); +int erts_sched_bind_atthrcreate_child(int unbind); +void erts_sched_bind_atthrcreate_parent(int unbind); + +int erts_sched_bind_atfork_prepare(void); +int erts_sched_bind_atfork_child(int unbind); +char *erts_sched_bind_atvfork_child(int unbind); +void erts_sched_bind_atfork_parent(int unbind); + +Eterm erts_fake_scheduler_bindings(Process *p, Eterm how); +Eterm erts_debug_cpu_groups_map(Process *c_p, int groups); + + +#endif |