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- /*
- * Copyright (c) 1987, 1993
- * The Regents of the University of California. 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 the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
- *
- * @(#)malloc.h 8.3 (Berkeley) 1/12/94
- */
-
- #ifndef _SYS_MALLOC_H_
- #define _SYS_MALLOC_H_
-
- #define KMEMSTATS
-
- /*
- * flags to malloc
- */
- #define M_WAITOK 0x0000
- #define M_NOWAIT 0x0001
-
- /*
- * Types of memory to be allocated
- */
- #define M_FREE 0 /* should be on free list */
- #define M_MBUF 1 /* mbuf */
- #define M_DEVBUF 2 /* device driver memory */
- #define M_SOCKET 3 /* socket structure */
- #define M_PCB 4 /* protocol control block */
- #define M_RTABLE 5 /* routing tables */
- #define M_HTABLE 6 /* IMP host tables */
- #define M_FTABLE 7 /* fragment reassembly header */
- #define M_ZOMBIE 8 /* zombie proc status */
- #define M_IFADDR 9 /* interface address */
- #define M_SOOPTS 10 /* socket options */
- #define M_SONAME 11 /* socket name */
- #define M_NAMEI 12 /* namei path name buffer */
- #define M_GPROF 13 /* kernel profiling buffer */
- #define M_IOCTLOPS 14 /* ioctl data buffer */
- #define M_MAPMEM 15 /* mapped memory descriptors */
- #define M_CRED 16 /* credentials */
- #define M_PGRP 17 /* process group header */
- #define M_SESSION 18 /* session header */
- #define M_IOV 19 /* large iov's */
- #define M_MOUNT 20 /* vfs mount struct */
- #define M_FHANDLE 21 /* network file handle */
- #define M_NFSREQ 22 /* NFS request header */
- #define M_NFSMNT 23 /* NFS mount structure */
- #define M_NFSNODE 24 /* NFS vnode private part */
- #define M_VNODE 25 /* Dynamically allocated vnodes */
- #define M_CACHE 26 /* Dynamically allocated cache entries */
- #define M_DQUOT 27 /* UFS quota entries */
- #define M_UFSMNT 28 /* UFS mount structure */
- #define M_SHM 29 /* SVID compatible shared memory segments */
- #define M_VMMAP 30 /* VM map structures */
- #define M_VMMAPENT 31 /* VM map entry structures */
- #define M_VMOBJ 32 /* VM object structure */
- #define M_VMOBJHASH 33 /* VM object hash structure */
- #define M_VMPMAP 34 /* VM pmap */
- #define M_VMPVENT 35 /* VM phys-virt mapping entry */
- #define M_VMPAGER 36 /* XXX: VM pager struct */
- #define M_VMPGDATA 37 /* XXX: VM pager private data */
- #define M_FILE 38 /* Open file structure */
- #define M_FILEDESC 39 /* Open file descriptor table */
- #define M_LOCKF 40 /* Byte-range locking structures */
- #define M_PROC 41 /* Proc structures */
- #define M_SUBPROC 42 /* Proc sub-structures */
- #define M_SEGMENT 43 /* Segment for LFS */
- #define M_LFSNODE 44 /* LFS vnode private part */
- #define M_FFSNODE 45 /* FFS vnode private part */
- #define M_MFSNODE 46 /* MFS vnode private part */
- #define M_NQLEASE 47 /* Nqnfs lease */
- #define M_NQMHOST 48 /* Nqnfs host address table */
- #define M_NETADDR 49 /* Export host address structure */
- #define M_NFSSVC 50 /* Nfs server structure */
- #define M_NFSUID 51 /* Nfs uid mapping structure */
- #define M_NFSD 52 /* Nfs server daemon structure */
- #define M_IPMOPTS 53 /* internet multicast options */
- #define M_IPMADDR 54 /* internet multicast address */
- #define M_IFMADDR 55 /* link-level multicast address */
- #define M_MRTABLE 56 /* multicast routing tables */
- #define M_ISOFSMNT 57 /* ISOFS mount structure */
- #define M_ISOFSNODE 58 /* ISOFS vnode private part */
- #define M_TEMP 74 /* misc temporary data buffers */
- #define M_LAST 75 /* Must be last type + 1 */
-
- #define INITKMEMNAMES { \
- "free", /* 0 M_FREE */ \
- "mbuf", /* 1 M_MBUF */ \
- "devbuf", /* 2 M_DEVBUF */ \
- "socket", /* 3 M_SOCKET */ \
- "pcb", /* 4 M_PCB */ \
- "routetbl", /* 5 M_RTABLE */ \
- "hosttbl", /* 6 M_HTABLE */ \
- "fragtbl", /* 7 M_FTABLE */ \
- "zombie", /* 8 M_ZOMBIE */ \
- "ifaddr", /* 9 M_IFADDR */ \
- "soopts", /* 10 M_SOOPTS */ \
- "soname", /* 11 M_SONAME */ \
- "namei", /* 12 M_NAMEI */ \
- "gprof", /* 13 M_GPROF */ \
- "ioctlops", /* 14 M_IOCTLOPS */ \
- "mapmem", /* 15 M_MAPMEM */ \
- "cred", /* 16 M_CRED */ \
- "pgrp", /* 17 M_PGRP */ \
- "session", /* 18 M_SESSION */ \
- "iov", /* 19 M_IOV */ \
- "mount", /* 20 M_MOUNT */ \
- "fhandle", /* 21 M_FHANDLE */ \
- "NFS req", /* 22 M_NFSREQ */ \
- "NFS mount", /* 23 M_NFSMNT */ \
- "NFS node", /* 24 M_NFSNODE */ \
- "vnodes", /* 25 M_VNODE */ \
- "namecache", /* 26 M_CACHE */ \
- "UFS quota", /* 27 M_DQUOT */ \
- "UFS mount", /* 28 M_UFSMNT */ \
- "shm", /* 29 M_SHM */ \
- "VM map", /* 30 M_VMMAP */ \
- "VM mapent", /* 31 M_VMMAPENT */ \
- "VM object", /* 32 M_VMOBJ */ \
- "VM objhash", /* 33 M_VMOBJHASH */ \
- "VM pmap", /* 34 M_VMPMAP */ \
- "VM pvmap", /* 35 M_VMPVENT */ \
- "VM pager", /* 36 M_VMPAGER */ \
- "VM pgdata", /* 37 M_VMPGDATA */ \
- "file", /* 38 M_FILE */ \
- "file desc", /* 39 M_FILEDESC */ \
- "lockf", /* 40 M_LOCKF */ \
- "proc", /* 41 M_PROC */ \
- "subproc", /* 42 M_SUBPROC */ \
- "LFS segment", /* 43 M_SEGMENT */ \
- "LFS node", /* 44 M_LFSNODE */ \
- "FFS node", /* 45 M_FFSNODE */ \
- "MFS node", /* 46 M_MFSNODE */ \
- "NQNFS Lease", /* 47 M_NQLEASE */ \
- "NQNFS Host", /* 48 M_NQMHOST */ \
- "Export Host", /* 49 M_NETADDR */ \
- "NFS srvsock", /* 50 M_NFSSVC */ \
- "NFS uid", /* 51 M_NFSUID */ \
- "NFS daemon", /* 52 M_NFSD */ \
- "ip_moptions", /* 53 M_IPMOPTS */ \
- "in_multi", /* 54 M_IPMADDR */ \
- "ether_multi", /* 55 M_IFMADDR */ \
- "mrt", /* 56 M_MRTABLE */ \
- "ISOFS mount", /* 57 M_ISOFSMNT */ \
- "ISOFS node", /* 58 M_ISOFSNODE */ \
- NULL, NULL, NULL, NULL, NULL, \
- NULL, NULL, NULL, NULL, NULL, \
- NULL, NULL, NULL, NULL, NULL, \
- "temp", /* 74 M_TEMP */ \
- }
-
- struct kmemstats {
- long ks_inuse; /* # of packets of this type currently in use */
- long ks_calls; /* total packets of this type ever allocated */
- long ks_memuse; /* total memory held in bytes */
- u_short ks_limblocks; /* number of times blocked for hitting limit */
- u_short ks_mapblocks; /* number of times blocked for kernel map */
- long ks_maxused; /* maximum number ever used */
- long ks_limit; /* most that are allowed to exist */
- long ks_size; /* sizes of this thing that are allocated */
- long ks_spare;
- };
-
- /*
- * Array of descriptors that describe the contents of each page
- */
- struct kmemusage {
- short ku_indx; /* bucket index */
- union {
- u_short freecnt;/* for small allocations, free pieces in page */
- u_short pagecnt;/* for large allocations, pages alloced */
- } ku_un;
- };
- #define ku_freecnt ku_un.freecnt
- #define ku_pagecnt ku_un.pagecnt
-
- /*
- * Set of buckets for each size of memory block that is retained
- */
- struct kmembuckets {
- caddr_t kb_next; /* list of free blocks */
- caddr_t kb_last; /* last free block */
- long kb_calls; /* total calls to allocate this size */
- long kb_total; /* total number of blocks allocated */
- long kb_totalfree; /* # of free elements in this bucket */
- long kb_elmpercl; /* # of elements in this sized allocation */
- long kb_highwat; /* high water mark */
- long kb_couldfree; /* over high water mark and could free */
- };
-
- #ifdef KERNEL
- #define MINALLOCSIZE (1 << MINBUCKET)
- #define BUCKETINDX(size) \
- (size) <= (MINALLOCSIZE * 128) \
- ? (size) <= (MINALLOCSIZE * 8) \
- ? (size) <= (MINALLOCSIZE * 2) \
- ? (size) <= (MINALLOCSIZE * 1) \
- ? (MINBUCKET + 0) \
- : (MINBUCKET + 1) \
- : (size) <= (MINALLOCSIZE * 4) \
- ? (MINBUCKET + 2) \
- : (MINBUCKET + 3) \
- : (size) <= (MINALLOCSIZE* 32) \
- ? (size) <= (MINALLOCSIZE * 16) \
- ? (MINBUCKET + 4) \
- : (MINBUCKET + 5) \
- : (size) <= (MINALLOCSIZE * 64) \
- ? (MINBUCKET + 6) \
- : (MINBUCKET + 7) \
- : (size) <= (MINALLOCSIZE * 2048) \
- ? (size) <= (MINALLOCSIZE * 512) \
- ? (size) <= (MINALLOCSIZE * 256) \
- ? (MINBUCKET + 8) \
- : (MINBUCKET + 9) \
- : (size) <= (MINALLOCSIZE * 1024) \
- ? (MINBUCKET + 10) \
- : (MINBUCKET + 11) \
- : (size) <= (MINALLOCSIZE * 8192) \
- ? (size) <= (MINALLOCSIZE * 4096) \
- ? (MINBUCKET + 12) \
- : (MINBUCKET + 13) \
- : (size) <= (MINALLOCSIZE * 16384) \
- ? (MINBUCKET + 14) \
- : (MINBUCKET + 15)
-
- /*
- * Turn virtual addresses into kmem map indicies
- */
- #define kmemxtob(alloc) (kmembase + (alloc) * NBPG)
- #define btokmemx(addr) (((caddr_t)(addr) - kmembase) / NBPG)
- #define btokup(addr) (&kmemusage[((caddr_t)(addr) - kmembase) >> CLSHIFT])
-
- /*
- * Macro versions for the usual cases of malloc/free
- */
- #if defined(KMEMSTATS) || defined(DIAGNOSTIC)
- #define MALLOC(space, cast, size, type, flags) \
- (space) = (cast)malloc((u_long)(size), type, flags)
- #define FREE(addr, type) free((caddr_t)(addr), type)
-
- #else /* do not collect statistics */
- #define MALLOC(space, cast, size, type, flags) { \
- register struct kmembuckets *kbp = &bucket[BUCKETINDX(size)]; \
- long s = splimp(); \
- if (kbp->kb_next == NULL) { \
- (space) = (cast)malloc((u_long)(size), type, flags); \
- } else { \
- (space) = (cast)kbp->kb_next; \
- kbp->kb_next = *(caddr_t *)(space); \
- } \
- splx(s); \
- }
-
- #define FREE(addr, type) { \
- register struct kmembuckets *kbp; \
- register struct kmemusage *kup = btokup(addr); \
- long s = splimp(); \
- if (1 << kup->ku_indx > MAXALLOCSAVE) { \
- free((caddr_t)(addr), type); \
- } else { \
- kbp = &bucket[kup->ku_indx]; \
- if (kbp->kb_next == NULL) \
- kbp->kb_next = (caddr_t)(addr); \
- else \
- *(caddr_t *)(kbp->kb_last) = (caddr_t)(addr); \
- *(caddr_t *)(addr) = NULL; \
- kbp->kb_last = (caddr_t)(addr); \
- } \
- splx(s); \
- }
- #endif /* do not collect statistics */
-
- extern struct kmemstats kmemstats[];
- extern struct kmemusage *kmemusage;
- extern char *kmembase;
- extern struct kmembuckets bucket[];
- extern void *malloc __P((unsigned long size, int type, int flags));
- extern void free __P((void *addr, int type));
- #endif /* KERNEL */
- #endif /* !_SYS_MALLOC_H_ */
-