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/* $OpenBSD: uvm_stat.h,v 1.16 2011/07/03 18:34:14 oga Exp $ */
/* $NetBSD: uvm_stat.h,v 1.19 2001/02/04 10:55:58 mrg Exp $ */
/*
*
* Copyright (c) 1997 Charles D. Cranor and Washington University.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Charles D. Cranor and
* Washington University.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* from: Id: uvm_stat.h,v 1.1.2.4 1998/02/07 01:16:56 chs Exp
*/
#ifndef _UVM_UVM_STAT_H_
#define _UVM_UVM_STAT_H_
#include <sys/queue.h>
/*
* uvm_stat: monitor what is going on with uvm (or whatever)
*/
/*
* counters [XXX: maybe replace event counters with this]
*/
#define UVMCNT_MASK 0xf /* rest are private */
#define UVMCNT_CNT 0 /* normal counter */
#define UVMCNT_DEV 1 /* device event counter */
struct uvm_cnt {
int c; /* the value */
int t; /* type */
struct uvm_cnt *next; /* global list of cnts */
char *name; /* counter name */
void *p; /* private data */
};
#ifdef _KERNEL
extern struct uvm_cnt *uvm_cnt_head;
/*
* counter operations. assume spl is set ok.
*/
#define UVMCNT_INIT(CNT,TYP,VAL,NAM,PRIV) \
do { \
CNT.c = VAL; \
CNT.t = TYP; \
CNT.next = uvm_cnt_head; \
uvm_cnt_head = &CNT; \
CNT.name = NAM; \
CNT.p = PRIV; \
} while (0)
#define UVMCNT_SET(C,V) \
do { \
(C).c = (V); \
} while (0)
#define UVMCNT_ADD(C,V) \
do { \
(C).c += (V); \
} while (0)
#define UVMCNT_INCR(C) UVMCNT_ADD(C,1)
#define UVMCNT_DECR(C) UVMCNT_ADD(C,-1)
#endif /* _KERNEL */
#endif /* _UVM_UVM_STAT_H_ */
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