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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 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _IOSPC_H
#define _IOSPC_H
/*
* Definitions which deal with things other than registers.
*/
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/sunddi.h>
#define SUCCESS 0
#define FAILURE -1
#define NAMEINST(dip) ddi_driver_name(dip), ddi_get_instance(dip)
/* Used for data structure retrieval during kstat update. */
typedef struct iospc_ksinfo {
kstat_t *cntr_ksp;
struct iospc *iospc_p;
struct iospc_grp *grp_p;
void *arg;
} iospc_ksinfo_t;
#define IOSPC_MAX_NUM_GRPS 10
/* State structure. */
typedef struct iospc {
dev_info_t *iospc_dip;
iospc_ksinfo_t *iospc_ksinfo_p[IOSPC_MAX_NUM_GRPS];
} iospc_t;
/*
* Description of a counter's events. Each counter will have an array of these,
* to define the events it can be programmed to report. Nonprogrammable
* counters still need an array of these, to contain the name busstat will
* display for it, and a CLEAR_PIC entry.
*/
typedef struct iospc_event {
char *name;
uint64_t value;
} iospc_event_t;
#define NUM_EVTS(x) (sizeof (x) / sizeof (iospc_event_t))
/*
* Counter description, including its access logistics and how to zero it.
*/
typedef struct iospc_cntr {
off_t regoff; /* Register offset or address. */
uint64_t fld_mask; /* Width of the active part of the register */
off_t zero_regoff; /* Offset of register used to zero counter. */
uint64_t zero_value; /* Value to write to zero_regoff, to clr cntr */
} iospc_cntr_t;
#define FULL64BIT -1ULL /* Can use this for fld_mask. */
#define NUM_CTRS(x) (sizeof (x) / sizeof (iospc_cntr_t))
/*
* Description of a counter's event selection. There will be one entry for
* each counter in the group.
*/
typedef struct iospc_regsel_fld {
iospc_event_t *events_p;
int num_events; /* Size of events array. */
uint64_t event_mask; /* Width of the event field. */
int event_offset; /* Offset of the event field. */
} iospc_regsel_fld_t;
/*
* Description of a group's select register.
*/
typedef struct iospc_regsel {
off_t regoff; /* Register offset or address. */
iospc_regsel_fld_t *fields_p; /* select reg subfield descriptions. */
int num_fields; /* Size of the fields array. */
} iospc_regsel_t;
#define NUM_FLDS(x) (sizeof (x) / sizeof (iospc_regsel_fld_t))
#define IOSPC_REG_READ 0
#define IOSPC_REG_WRITE 1
/* Standin symbol for when there is no register. */
#define NO_REGISTER (off_t)-1ULL
/*
* Group description.
*/
typedef struct iospc_grp {
char *grp_name; /* Name, shows up as busstat "module" name. */
iospc_regsel_t *regsel_p; /* Select register. */
iospc_cntr_t *counters_p; /* Counter definitions. */
int num_counters; /* Size of the counters array. */
int (*access_init)(iospc_t *iospc_p, iospc_ksinfo_t *ksinfo_p);
int (*access)(iospc_t *iospc_p, void *, int op, int regid,
uint64_t *data);
int (*access_fini)(iospc_t *iospc_p, iospc_ksinfo_t *ksinfo_p);
kstat_t **name_kstats_pp; /* Named kstats. One for all instances. */
} iospc_grp_t;
/* Debugging facility. */
#ifdef DEBUG
extern int iospc_debug;
#define IOSPC_DBG1 if (iospc_debug >= 1) printf
#define IOSPC_DBG2 if (iospc_debug >= 2) printf
#else
#define IOSPC_DBG1 0 &&
#define IOSPC_DBG2 0 &&
#endif /* DEBUG */
/* Function definitions exported among different modules. */
extern int iospc_kstat_init(void);
extern void iospc_kstat_fini(void);
extern int iospc_kstat_attach(iospc_t *iospc_p);
extern void iospc_kstat_detach(iospc_t *iospc_p);
extern iospc_grp_t **rfios_bind_group(void);
extern void rfios_unbind_group(void);
#ifdef __cplusplus
}
#endif
#endif /* _IOSPC_H */
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