Move cpu topology functionality into erl_cpu_topology.[ch]

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