diff options
Diffstat (limited to 'cpukit/libnetworking/sys/malloc.h')
| -rw-r--r-- | cpukit/libnetworking/sys/malloc.h | 355 |
1 files changed, 355 insertions, 0 deletions
diff --git a/cpukit/libnetworking/sys/malloc.h b/cpukit/libnetworking/sys/malloc.h new file mode 100644 index 0000000000..ec85c1814d --- /dev/null +++ b/cpukit/libnetworking/sys/malloc.h @@ -0,0 +1,355 @@ +/* + * 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 8.5 (Berkeley) 5/3/95 + * $Id$ + */ + +#ifndef _SYS_MALLOC_H_ +#define _SYS_MALLOC_H_ + +#include <rtems/rtems_bsdnet_internal.h> /* Ensure we get RTEMS malloc hooks */ +#define KMEMSTATS + +/* + * flags to malloc + */ +#define M_WAITOK 0x0000 +#define M_NOWAIT 0x0001 +#define M_KERNEL 0x0002 + +/* + * 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_NFSRVDESC 59 /* NFS server socket descriptor */ +#define M_NFSDIROFF 60 /* NFS directory offset data */ +#define M_NFSBIGFH 61 /* NFS version 3 file handle */ +#define M_MSDOSFSMNT 67 /* MSDOSFS mount structure */ +#define M_MSDOSFSNODE 68 /* MSDOSFS vnode private part */ +#define M_MSDOSFSFAT 69 /* MSDOSFS file allocation table */ +#define M_DEVFSMNT 70 /* DEVFS mount structure */ +#define M_DEVFSBACK 71 /* DEVFS Back node */ +#define M_DEVFSFRONT 72 /* DEVFS Front node */ +#define M_DEVFSNODE 73 /* DEVFS node */ +#define M_TEMP 74 /* misc temporary data buffers */ +#define M_TTYS 75 /* tty data structures */ +#define M_GZIP 76 /* Gzip trees */ +#define M_IPFW 77 /* IpFw/IpAcct chain's */ +#define M_DEVL 78 /* isa_device lists in userconfig() */ +#define M_PKTCLASS 79 /* structures used in packet classifier */ +#define M_SYSCTL 80 /* sysctl internal magic */ +#define M_SECA 81 /* security associations, key management */ +#define M_BIOBUF 82 /* BIO buffer */ +#define M_KTRACE 83 /* KTRACE */ +#define M_SELECT 84 /* select() buffer */ +#define M_CFS 85 /* Coda */ +#define M_LAST 86 /* 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 */ \ + "NFSV3 srvdesc",/* 59 M_NFSRVDESC */ \ + "NFSV3 diroff", /* 60 M_NFSDIROFF */ \ + "NFSV3 bigfh", /* 61 M_NFSBIGFH */ \ + NULL, \ + NULL, NULL, NULL, NULL, \ + "MSDOSFS mount",/* 67 M_MSDOSFSMNT */ \ + "MSDOSFS node", /* 68 M_MSDOSFSNODE */ \ + "MSDOSFS FAT", /* 69 M_MSDOSFSFAR */ \ + "DEVFS mount", /* 70 M_DEVFSMNT */ \ + "DEVFS back", /* 71 M_DEVFSBACK */ \ + "DEVFS front", /* 72 M_DEVFSFRONT */ \ + "DEVFS node", /* 73 M_DEVFSNODE */ \ + "temp", /* 74 M_TEMP */ \ + "ttys", /* 75 M_TTYS */ \ + "Gzip trees", /* 76 M_GZIP */ \ + "IpFw/IpAcct", /* 77 M_IPFW */ \ + "isa_devlist", /* 78 M_DEVL */ \ + "PktClass", /* 79 M_PKTCLASS */ \ + "sysctl", /* 80 M_SYSCTL */ \ + "key mgmt", /* 81 M_SECA */ \ + "BIO buffer", /* 82 M_BIOBUF */ \ + "KTRACE", /* 83 M_KTRACE */ \ + "select", /* 84 M_SELECT */ \ + "Coda", /* 85 M_CFS */ \ +} + +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 indices + */ +#define kmemxtob(alloc) (kmembase + (alloc) * PAGE_SIZE) +#define btokmemx(addr) (((caddr_t)(addr) - kmembase) / PAGE_SIZE) +#define btokup(addr) (&kmemusage[(caddr_t)(addr) - kmembase >> PAGE_SHIFT]) + +/* + * 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((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((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[]; + +void *contigmalloc __P((unsigned long size, int type, int flags, + unsigned long low, unsigned long high, + unsigned long alignment, unsigned long boundary)); +void free __P((void *addr, int type)); +void *malloc __P((unsigned long size, int type, int flags)); +#endif /* KERNEL */ + +#endif /* !_SYS_MALLOC_H_ */ |