1*420Sstevel /* 2*420Sstevel * CDDL HEADER START 3*420Sstevel * 4*420Sstevel * The contents of this file are subject to the terms of the 5*420Sstevel * Common Development and Distribution License, Version 1.0 only 6*420Sstevel * (the "License"). You may not use this file except in compliance 7*420Sstevel * with the License. 8*420Sstevel * 9*420Sstevel * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*420Sstevel * or http://www.opensolaris.org/os/licensing. 11*420Sstevel * See the License for the specific language governing permissions 12*420Sstevel * and limitations under the License. 13*420Sstevel * 14*420Sstevel * When distributing Covered Code, include this CDDL HEADER in each 15*420Sstevel * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*420Sstevel * If applicable, add the following below this CDDL HEADER, with the 17*420Sstevel * fields enclosed by brackets "[]" replaced with your own identifying 18*420Sstevel * information: Portions Copyright [yyyy] [name of copyright owner] 19*420Sstevel * 20*420Sstevel * CDDL HEADER END 21*420Sstevel */ 22*420Sstevel 230Sstevel@tonic-gate /* 240Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 250Sstevel@tonic-gate * Use is subject to license terms. 260Sstevel@tonic-gate */ 270Sstevel@tonic-gate 280Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 290Sstevel@tonic-gate 300Sstevel@tonic-gate #include <sys/systm.h> 310Sstevel@tonic-gate #include <sys/cmn_err.h> 320Sstevel@tonic-gate #include <sys/kobj.h> 330Sstevel@tonic-gate #include <sys/kobj_impl.h> 340Sstevel@tonic-gate 350Sstevel@tonic-gate /* 360Sstevel@tonic-gate * This module is used both during the normal operation of the kernel (i.e. 370Sstevel@tonic-gate * after kmem has been initialized) and during boot (before unix`_start has 380Sstevel@tonic-gate * been called). kobj_alloc is able to tell the difference between the two 390Sstevel@tonic-gate * cases, and as such must be used instead of kmem_alloc. 400Sstevel@tonic-gate */ 410Sstevel@tonic-gate 420Sstevel@tonic-gate void 430Sstevel@tonic-gate zmemcpy(uchar_t *dest, const uchar_t *source, uint_t len) 440Sstevel@tonic-gate { 450Sstevel@tonic-gate bcopy(source, dest, len); 460Sstevel@tonic-gate } 470Sstevel@tonic-gate 480Sstevel@tonic-gate struct zchdr { 490Sstevel@tonic-gate uint_t zch_magic; 500Sstevel@tonic-gate uint_t zch_size; 510Sstevel@tonic-gate }; 520Sstevel@tonic-gate 530Sstevel@tonic-gate #define ZCH_MAGIC 0x3cc13cc1 540Sstevel@tonic-gate 550Sstevel@tonic-gate /*ARGSUSED*/ 560Sstevel@tonic-gate void * 570Sstevel@tonic-gate zcalloc(void *opaque, uint_t items, uint_t size) 580Sstevel@tonic-gate { 590Sstevel@tonic-gate size_t nbytes = sizeof (struct zchdr) + items * size; 600Sstevel@tonic-gate struct zchdr *z = kobj_zalloc(nbytes, KM_NOWAIT|KM_TMP); 610Sstevel@tonic-gate 620Sstevel@tonic-gate if (z == NULL) 630Sstevel@tonic-gate return (NULL); 640Sstevel@tonic-gate 650Sstevel@tonic-gate z->zch_magic = ZCH_MAGIC; 660Sstevel@tonic-gate z->zch_size = nbytes; 670Sstevel@tonic-gate 680Sstevel@tonic-gate return (z + 1); 690Sstevel@tonic-gate } 700Sstevel@tonic-gate 710Sstevel@tonic-gate /*ARGSUSED*/ 720Sstevel@tonic-gate void 730Sstevel@tonic-gate zcfree(void *opaque, void *ptr) 740Sstevel@tonic-gate { 750Sstevel@tonic-gate struct zchdr *z = ((struct zchdr *)ptr) - 1; 760Sstevel@tonic-gate 770Sstevel@tonic-gate if (z->zch_magic != ZCH_MAGIC) 780Sstevel@tonic-gate panic("zcfree region corrupt: hdr=%p ptr=%p", (void *)z, ptr); 790Sstevel@tonic-gate 800Sstevel@tonic-gate kobj_free(z, z->zch_size); 810Sstevel@tonic-gate } 82