1 /* 2 * Copyright (c) 1997, 1998 John S. Dyson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice immediately at the beginning of the file, without modification, 10 * this list of conditions, and the following disclaimer. 11 * 2. Absolutely no warranty of function or purpose is made by the author 12 * John S. Dyson. 13 * 14 * $FreeBSD: src/sys/vm/vm_zone.h,v 1.13.2.2 2002/10/10 19:50:16 dillon Exp $ 15 */ 16 17 #ifndef _SYS_ZONE_H 18 19 #define _SYS_ZONE_H 20 21 #define ZONE_INTERRUPT 0x0001 /* If you need to allocate at int time */ 22 #define ZONE_PANICFAIL 0x0002 /* panic if the zalloc fails */ 23 #define ZONE_BOOT 0x0010 /* Internal flag used by zbootinit */ 24 25 #include <machine/lock.h> 26 27 typedef struct vm_zone { 28 struct simplelock zlock; /* lock for data structure */ 29 void *zitems; /* linked list of items */ 30 int zfreecnt; /* free entries */ 31 int zfreemin; /* minimum number of free entries */ 32 int znalloc; /* number of allocations */ 33 vm_offset_t zkva; /* Base kva of zone */ 34 int zpagecount; /* Total # of allocated pages */ 35 int zpagemax; /* Max address space */ 36 int zmax; /* Max number of entries allocated */ 37 int ztotal; /* Total entries allocated now */ 38 int zsize; /* size of each entry */ 39 int zalloc; /* hint for # of pages to alloc */ 40 int zflags; /* flags for zone */ 41 int zallocflag; /* flag for allocation */ 42 struct vm_object *zobj; /* object to hold zone */ 43 char *zname; /* name for diags */ 44 struct vm_zone *znext; /* list of zones for sysctl */ 45 } *vm_zone_t; 46 47 48 void zerror __P((int)) __dead2; 49 vm_zone_t zinit __P((char *name, int size, int nentries, int flags, 50 int zalloc)); 51 int zinitna __P((vm_zone_t z, struct vm_object *obj, char *name, 52 int size, int nentries, int flags, int zalloc)); 53 void * zalloc __P((vm_zone_t z)); 54 void zfree __P((vm_zone_t z, void *item)); 55 void * zalloci __P((vm_zone_t z)); 56 void zfreei __P((vm_zone_t z, void *item)); 57 void zbootinit __P((vm_zone_t z, char *name, int size, void *item, 58 int nitems)); 59 void * _zget __P((vm_zone_t z)); 60 61 #endif /* _SYS_ZONE_H */ 62