1 /* $NetBSD: OsdMemory.c,v 1.1 2006/03/23 13:41:13 kochi Exp $ */ 2 3 /* 4 * Copyright 2001 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * OS Services Layer 40 * 41 * 6.2: Memory management. 42 */ 43 44 #include <sys/cdefs.h> 45 __KERNEL_RCSID(0, "$NetBSD: OsdMemory.c,v 1.1 2006/03/23 13:41:13 kochi Exp $"); 46 47 #include <sys/param.h> 48 #include <sys/malloc.h> 49 50 #include <dev/acpi/acpica.h> 51 52 #include <machine/acpi_machdep.h> 53 54 MALLOC_DECLARE(M_ACPI); 55 56 /* 57 * AcpiOsMapMemory: 58 * 59 * Map physical memory into the caller's address space. 60 */ 61 ACPI_STATUS 62 AcpiOsMapMemory(ACPI_PHYSICAL_ADDRESS PhysicalAddress, ACPI_SIZE Length, 63 void **LogicalAddress) 64 { 65 66 return acpi_md_OsMapMemory(PhysicalAddress, Length, LogicalAddress); 67 } 68 69 /* 70 * AcpiOsUnmapMemory: 71 * 72 * Remove a physical to logical memory mapping. 73 */ 74 void 75 AcpiOsUnmapMemory(void *LogicalAddress, ACPI_SIZE Length) 76 { 77 78 acpi_md_OsUnmapMemory(LogicalAddress, Length); 79 } 80 81 /* 82 * AcpiOsGetPhysicalAddress: 83 * 84 * Translate a logical address to a physical address. 85 */ 86 ACPI_STATUS 87 AcpiOsGetPhysicalAddress(void *LogicalAddress, 88 ACPI_PHYSICAL_ADDRESS *PhysicalAddress) 89 { 90 91 return acpi_md_OsGetPhysicalAddress(LogicalAddress, PhysicalAddress); 92 } 93 94 /* 95 * AcpiOsAllocate: 96 * 97 * Allocate memory from the dynamic memory pool. 98 */ 99 void * 100 AcpiOsAllocate(ACPI_SIZE Size) 101 { 102 103 return malloc(Size, M_ACPI, M_NOWAIT); 104 } 105 106 /* 107 * AcpiOsFree: 108 * 109 * Free previously allocated memory. 110 */ 111 void 112 AcpiOsFree(void *Memory) 113 { 114 115 free(Memory, M_ACPI); 116 } 117 118 119 /* 120 * AcpiOsReadable: 121 * 122 * Check if a memory region is readable. 123 */ 124 BOOLEAN 125 AcpiOsReadable(void *Pointer, ACPI_SIZE Length) 126 { 127 128 return acpi_md_OsReadable(Pointer, Length); 129 } 130 131 /* 132 * AcpiOsWritable: 133 * 134 * Check if a memory region is writable (and readable). 135 */ 136 BOOLEAN 137 AcpiOsWritable(void *Pointer, ACPI_SIZE Length) 138 { 139 140 return acpi_md_OsWritable(Pointer, Length); 141 } 142