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 #include <sys/types.h> 28 #include <sys/saio.h> 29 #include <sys/sysmacros.h> 30 #include <sys/promif.h> 31 #include <sys/bootconf.h> 32 #include <sys/salib.h> 33 34 #ifdef DEBUG 35 static int resalloc_debug = 1; 36 #else /* DEBUG */ 37 static int resalloc_debug = 0; 38 #endif /* DEBUG */ 39 #define dprintf if (resalloc_debug) printf 40 41 extern caddr_t resalloc(enum RESOURCES type, 42 size_t bytes, caddr_t virthint, int align); 43 extern void resfree(enum RESOURCES type, 44 caddr_t virtaddr, size_t bytes); 45 46 extern int pagesize; 47 48 /* 49 * This routine should be called get_a_page(). 50 * It allocates from the appropriate entity one or 51 * more pages and maps them in. 52 */ 53 54 caddr_t 55 kern_resalloc(caddr_t virthint, size_t size, int align) 56 { 57 if (virthint != 0) 58 return (resalloc(RES_CHILDVIRT, size, virthint, align)); 59 else { 60 return (resalloc(RES_BOOTSCRATCH, size, NULL, NULL)); 61 } 62 } 63 64 /* 65 * This is called only on sparcv9 for freeing scratch memory. 66 * The standalone allocator cannot free other types of memory. 67 */ 68 void 69 kern_resfree(caddr_t virtaddr, size_t size) 70 { 71 resfree(RES_BOOTSCRATCH, virtaddr, size); 72 } 73 74 int 75 get_progmemory(caddr_t vaddr, size_t size, int align) 76 { 77 uintptr_t n; 78 79 /* 80 * if the vaddr given is not a mult of PAGESIZE, 81 * then we rounddown to a page, but keep the same 82 * ending addr. 83 */ 84 n = (uintptr_t)vaddr & (pagesize - 1); 85 if (n) { 86 vaddr -= n; 87 size += n; 88 } 89 90 dprintf("get_progmemory: requesting %lx bytes at %p\n", size, 91 (void *)vaddr); 92 if (resalloc(RES_CHILDVIRT, size, vaddr, align) != vaddr) 93 return (-1); 94 return (0); 95 } 96