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/* $OpenBSD: uvm_stat.h,v 1.9 2001/08/11 10:57:22 art Exp $ */
/* $NetBSD: uvm_stat.h,v 1.18 2000/04/11 08:12:14 pk 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 */
/*
* history/tracing
*/
struct uvm_history_ent {
struct timeval tv; /* time stamp */
char *fmt; /* printf format */
size_t fmtlen; /* length of printf format */
char *fn; /* function name */
size_t fnlen; /* length of function name */
u_long call; /* function call number */
u_long v[4]; /* values */
};
struct uvm_history {
const char *name; /* name of this this history */
size_t namelen; /* length of name, not including null */
LIST_ENTRY(uvm_history) list; /* link on list of all histories */
int n; /* number of entries */
int f; /* next free one */
simple_lock_data_t l; /* lock on this history */
struct uvm_history_ent *e; /* the malloc'd entries */
};
LIST_HEAD(uvm_history_head, uvm_history);
/*
* grovelling lists all at once. we currently do not allow more than
* 32 histories to exist, as the way to dump a number of them at once
* is by calling uvm_hist() with a bitmask.
*/
/* this is used to set the size of some arrays */
#define MAXHISTS 32 /* do not change this! */
/* and these are the bit values of each history */
#define UVMHIST_MAPHIST 0x00000001 /* maphist */
#define UVMHIST_PDHIST 0x00000002 /* pdhist */
#ifdef _KERNEL
/*
* macros to use the history/tracing code. note that UVMHIST_LOG
* must take 4 arguments (even if they are ignored by the format).
*/
#ifndef UVMHIST
#define UVMHIST_DECL(NAME)
#define UVMHIST_INIT(NAME,N)
#define UVMHIST_INIT_STATIC(NAME,BUF)
#define UVMHIST_LOG(NAME,FMT,A,B,C,D)
#define UVMHIST_CALLED(NAME)
#define UVMHIST_FUNC(FNAME)
#define uvmhist_dump(NAME)
#else
extern struct uvm_history_head uvm_histories;
#define UVMHIST_DECL(NAME) struct uvm_history NAME
#define UVMHIST_INIT(NAME,N) \
do { \
(NAME).name = __STRING(NAME); \
(NAME).namelen = strlen((NAME).name); \
(NAME).n = (N); \
(NAME).f = 0; \
simple_lock_init(&(NAME).l); \
(NAME).e = (struct uvm_history_ent *) \
malloc(sizeof(struct uvm_history_ent) * (N), M_TEMP, \
M_WAITOK); \
memset((NAME).e, 0, sizeof(struct uvm_history_ent) * (N)); \
LIST_INSERT_HEAD(&uvm_histories, &(NAME), list); \
} while (0)
#define UVMHIST_INIT_STATIC(NAME,BUF) \
do { \
(NAME).name = __STRING(NAME); \
(NAME).namelen = strlen((NAME).name); \
(NAME).n = sizeof(BUF) / sizeof(struct uvm_history_ent); \
(NAME).f = 0; \
simple_lock_init(&(NAME).l); \
(NAME).e = (struct uvm_history_ent *) (BUF); \
memset((NAME).e, 0, sizeof(struct uvm_history_ent) * (NAME).n); \
LIST_INSERT_HEAD(&uvm_histories, &(NAME), list); \
} while (0)
#if defined(UVMHIST_PRINT)
extern int uvmhist_print_enabled;
#define UVMHIST_PRINTNOW(E) \
do { \
if (uvmhist_print_enabled) { \
uvmhist_print(E); \
DELAY(100000); \
} \
} while (0)
#else
#define UVMHIST_PRINTNOW(E) /* nothing */
#endif
#define UVMHIST_LOG(NAME,FMT,A,B,C,D) \
do { \
int _i_, _s_ = splhigh(); \
simple_lock(&(NAME).l); \
_i_ = (NAME).f; \
(NAME).f = (_i_ + 1) % (NAME).n; \
simple_unlock(&(NAME).l); \
splx(_s_); \
if (!cold) \
microtime(&(NAME).e[_i_].tv); \
(NAME).e[_i_].fmt = (FMT); \
(NAME).e[_i_].fmtlen = strlen((NAME).e[_i_].fmt); \
(NAME).e[_i_].fn = _uvmhist_name; \
(NAME).e[_i_].fnlen = strlen((NAME).e[_i_].fn); \
(NAME).e[_i_].call = _uvmhist_call; \
(NAME).e[_i_].v[0] = (u_long)(A); \
(NAME).e[_i_].v[1] = (u_long)(B); \
(NAME).e[_i_].v[2] = (u_long)(C); \
(NAME).e[_i_].v[3] = (u_long)(D); \
UVMHIST_PRINTNOW(&((NAME).e[_i_])); \
} while (0)
#define UVMHIST_CALLED(NAME) \
do { \
{ \
int s = splhigh(); \
simple_lock(&(NAME).l); \
_uvmhist_call = _uvmhist_cnt++; \
simple_unlock(&(NAME).l); \
splx(s); \
} \
UVMHIST_LOG(NAME,"called!", 0, 0, 0, 0); \
} while (0)
#define UVMHIST_FUNC(FNAME) \
static int _uvmhist_cnt = 0; \
static char *_uvmhist_name = FNAME; \
int _uvmhist_call;
static __inline void uvmhist_print __P((struct uvm_history_ent *));
static __inline void
uvmhist_print(e)
struct uvm_history_ent *e;
{
printf("%06ld.%06ld ", e->tv.tv_sec, e->tv.tv_usec);
printf("%s#%ld: ", e->fn, e->call);
printf(e->fmt, e->v[0], e->v[1], e->v[2], e->v[3]);
printf("\n");
}
#endif /* UVMHIST */
#endif /* _KERNEL */
#endif /* _UVM_UVM_STAT_H_ */
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