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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _PG_H
#define _PG_H
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Processor Groups
*/
#ifdef __cplusplus
extern "C" {
#endif
#if (defined(_KERNEL) || defined(_KMEMUSER))
#include <sys/cpuvar.h>
#include <sys/group.h>
#include <sys/processor.h>
#include <sys/bitset.h>
#include <sys/atomic.h>
#include <sys/types.h>
#include <sys/kstat.h>
typedef uint_t pgid_t; /* processor group id */
typedef uint_t pg_cid_t; /* processor group class id */
/*
* Nature of CPU relationships
*/
typedef enum pg_relation {
PGR_LOGICAL,
PGR_PHYSICAL
} pg_relation_t;
/*
* Processor group structure
*/
typedef struct pg {
pgid_t pg_id; /* seq id */
pg_relation_t pg_relation; /* grouping relationship */
struct pg_class *pg_class; /* pg class */
struct group pg_cpus; /* group of CPUs */
} pg_t;
/*
* PG class callbacks
*/
struct pg_ops {
struct pg *(*alloc)();
void (*free)(struct pg *);
void (*cpu_init)(struct cpu *);
void (*cpu_fini)(struct cpu *);
void (*cpu_active)(struct cpu *);
void (*cpu_inactive)(struct cpu *);
void (*cpupart_in)(struct cpu *, struct cpupart *);
void (*cpupart_out)(struct cpu *, struct cpupart *);
void (*cpupart_move)(struct cpu *, struct cpupart *,
struct cpupart *);
int (*cpu_belongs)(struct pg *, struct cpu *);
};
#define PG_CLASS_NAME_MAX 32
/*
* PG class structure
*/
typedef struct pg_class {
pg_cid_t pgc_id;
char pgc_name[PG_CLASS_NAME_MAX];
struct pg_ops *pgc_ops;
pg_relation_t pgc_relation;
} pg_class_t;
/*
* Per CPU processor group data
*/
typedef struct cpu_pg {
struct group pgs; /* All the CPU's PGs */
struct group cmt_pgs; /* CMT load balancing lineage */
/* (Group hierarchy ordered) */
struct pg *cmt_lineage; /* Ascending lineage chain */
} cpu_pg_t;
/*
* PG cpu iterator cookie
*/
typedef struct pg_cpu_itr {
pg_t *pg;
group_iter_t position;
} pg_cpu_itr_t;
/*
* Initialize a PG CPU iterator cookie
*/
#define PG_CPU_ITR_INIT(pgrp, itr) \
{ \
group_iter_init(&(itr).position); \
(itr).pg = ((pg_t *)pgrp); \
}
/*
* Return the first CPU in a PG
*/
#define PG_CPU_GET_FIRST(pgrp) \
(GROUP_SIZE(&((pg_t *)pgrp)->pg_cpus) > 0 ? \
GROUP_ACCESS(&((pg_t *)pgrp)->pg_cpus, 0) : NULL)
/*
* Framework routines
*/
void pg_init(void);
pg_cid_t pg_class_register(char *, struct pg_ops *, pg_relation_t);
/*
* PG CPU reconfiguration hooks
*/
void pg_cpu0_init(void);
void pg_cpu_init(cpu_t *);
void pg_cpu_fini(cpu_t *);
void pg_cpu_active(cpu_t *);
void pg_cpu_inactive(cpu_t *);
void pg_cpu_startup(cpu_t *);
void pg_cpu_bootstrap(cpu_t *);
/*
* PG cpupart service hooks
*/
void pg_cpupart_in(cpu_t *, struct cpupart *);
void pg_cpupart_out(cpu_t *, struct cpupart *);
void pg_cpupart_move(cpu_t *, struct cpupart *, struct cpupart *);
/*
* PG CPU utility routines
*/
pg_t *pg_create(pg_cid_t);
void pg_destroy(pg_t *);
void pg_cpu_add(pg_t *, cpu_t *);
void pg_cpu_delete(pg_t *, cpu_t *);
pg_t *pg_cpu_find_pg(cpu_t *, group_t *);
cpu_t *pg_cpu_next(pg_cpu_itr_t *);
#endif /* !_KERNEL && !_KMEMUSER */
#ifdef __cplusplus
}
#endif
#endif /* _PG_H */
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