1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/types.h> 30 #include <sys/saio.h> 31 #include <sys/sysmacros.h> 32 #include <sys/promif.h> 33 #include <sys/bootconf.h> 34 #include <sys/salib.h> 35 36 #ifdef DEBUG 37 static int resalloc_debug = 1; 38 #else /* DEBUG */ 39 static int resalloc_debug = 0; 40 #endif /* DEBUG */ 41 #define dprintf if (resalloc_debug) printf 42 43 extern caddr_t resalloc(enum RESOURCES type, 44 size_t bytes, caddr_t virthint, int align); 45 extern void resfree(enum RESOURCES type, 46 caddr_t virtaddr, size_t bytes); 47 48 caddr_t memlistpage; 49 extern int pagesize; 50 51 /* 52 * This routine should be called get_a_page(). 53 * It allocates from the appropriate entity one or 54 * more pages and maps them in. 55 */ 56 57 caddr_t 58 kern_resalloc(caddr_t virthint, size_t size, int align) 59 { 60 if (virthint != 0) 61 return (resalloc(RES_CHILDVIRT, size, virthint, align)); 62 else { 63 return (resalloc(RES_BOOTSCRATCH, size, NULL, NULL)); 64 } 65 } 66 67 /* 68 * This is called only on sparcv9 for freeing scratch memory. 69 * The standalone allocator cannot free other types of memory. 70 */ 71 void 72 kern_resfree(caddr_t virtaddr, size_t size) 73 { 74 resfree(RES_BOOTSCRATCH, virtaddr, size); 75 } 76 77 int 78 get_progmemory(caddr_t vaddr, size_t size, int align) 79 { 80 uintptr_t n; 81 82 /* 83 * if the vaddr given is not a mult of PAGESIZE, 84 * then we rounddown to a page, but keep the same 85 * ending addr. 86 */ 87 n = (uintptr_t)vaddr & (pagesize - 1); 88 if (n) { 89 vaddr -= n; 90 size += n; 91 } 92 93 dprintf("get_progmemory: requesting %lx bytes at %p\n", size, 94 (void *)vaddr); 95 if (resalloc(RES_CHILDVIRT, size, vaddr, align) != vaddr) 96 return (-1); 97 return (0); 98 } 99