1/*-
|
2 * Copyright (c) 2000 Mitsaru Iwasaki |
3 * Copyright (c) 2000 Michael Smith 4 * Copyright (c) 2000 BSDi 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 *
|
27 * $FreeBSD: head/sys/dev/acpica/Osd/OsdMemory.c 67760 2000-10-28 06:56:15Z msmith $
|
28 * $FreeBSD: head/sys/dev/acpica/Osd/OsdMemory.c 69459 2000-12-01 10:19:28Z msmith $ |
29 */ 30 31/* 32 * 6.2 : Memory Management 33 */ 34 35#include "acpi.h" 36 37#include <sys/kernel.h> 38#include <sys/malloc.h> 39#include <vm/vm.h> 40#include <vm/pmap.h> 41 42MALLOC_DEFINE(M_ACPICA, "acpica", "ACPI CA memory pool"); 43 44void * 45AcpiOsAllocate(UINT32 Size) 46{ 47 return(malloc(Size, M_ACPICA, M_NOWAIT)); 48} 49 50void * 51AcpiOsCallocate (UINT32 Size) 52{ 53 void *alloc; 54 55 alloc = malloc(Size, M_ACPICA, M_NOWAIT); 56 if (alloc != NULL) 57 bzero(alloc, Size); 58 return(alloc); 59} 60 61void 62AcpiOsFree (void *Memory) 63{ 64 free(Memory, M_ACPICA); 65} 66 67ACPI_STATUS
|
67AcpiOsMapMemory (void *PhysicalAddress, UINT32 Length, void **LogicalAddress)
|
68AcpiOsMapMemory (ACPI_PHYSICAL_ADDRESS PhysicalAddress, UINT32 Length, void **LogicalAddress) |
69{ 70 *LogicalAddress = pmap_mapdev((vm_offset_t)PhysicalAddress, Length); 71 if (*LogicalAddress == NULL) 72 return(AE_BAD_ADDRESS); 73 return(AE_OK); 74} 75 76void 77AcpiOsUnmapMemory (void *LogicalAddress, UINT32 Length) 78{ 79 pmap_unmapdev((vm_offset_t)LogicalAddress, Length); 80} 81 82/* 83 * There is no clean way to do this. We make the charitable assumption 84 * that callers will not pass garbage to us. 85 */ 86BOOLEAN 87AcpiOsReadable (void *Pointer, UINT32 Length) 88{ 89 return(TRUE); 90} 91 92BOOLEAN 93AcpiOsWritable (void *Pointer, UINT32 Length) 94{ 95 return(TRUE); 96} 97
|
98static __inline 99UINT32 100AcpiOsMemInX (UINT32 Length, ACPI_PHYSICAL_ADDRESS InAddr) 101{ 102 UINT32 Value; 103 void *LogicalAddress; 104 105 if (AcpiOsMapMemory(InAddr, Length, &LogicalAddress) != AE_OK) { 106 return(0); 107 } 108 109 switch (Length) { 110 case 1: 111 Value = (*(volatile u_int8_t *)LogicalAddress) & 0xff; 112 break; 113 case 2: 114 Value = (*(volatile u_int16_t *)LogicalAddress) & 0xffff; 115 break; 116 case 4: 117 Value = (*(volatile u_int32_t *)LogicalAddress); 118 break; 119 } 120 121 AcpiOsUnmapMemory(LogicalAddress, Length); 122 123 return(Value); 124} 125 126UINT8 127AcpiOsMemIn8 (ACPI_PHYSICAL_ADDRESS InAddr) 128{ 129 return((UINT8)AcpiOsMemInX(1, InAddr)); 130} 131 132UINT16 133AcpiOsMemIn16 (ACPI_PHYSICAL_ADDRESS InAddr) 134{ 135 return((UINT16)AcpiOsMemInX(2, InAddr)); 136} 137 138UINT32 139AcpiOsMemIn32 (ACPI_PHYSICAL_ADDRESS InAddr) 140{ 141 return((UINT32)AcpiOsMemInX(4, InAddr)); 142} 143 144static __inline 145void 146AcpiOsMemOutX (UINT32 Length, ACPI_PHYSICAL_ADDRESS OutAddr, UINT32 Value) 147{ 148 void *LogicalAddress; 149 150 if (AcpiOsMapMemory(OutAddr, Length, &LogicalAddress) != AE_OK) { 151 return; 152 } 153 154 switch (Length) { 155 case 1: 156 (*(volatile u_int8_t *)LogicalAddress) = Value & 0xff; 157 break; 158 case 2: 159 (*(volatile u_int16_t *)LogicalAddress) = Value & 0xffff; 160 break; 161 case 4: 162 (*(volatile u_int32_t *)LogicalAddress) = Value; 163 break; 164 } 165 166 AcpiOsUnmapMemory(LogicalAddress, Length); 167} 168 169void 170AcpiOsMemOut8 (ACPI_PHYSICAL_ADDRESS OutAddr, UINT8 Value) 171{ 172 AcpiOsMemOutX(1, OutAddr, (UINT32)Value); 173} 174 175void 176AcpiOsMemOut16 (ACPI_PHYSICAL_ADDRESS OutAddr, UINT16 Value) 177{ 178 AcpiOsMemOutX(2, OutAddr, (UINT32)Value); 179} 180 181void 182AcpiOsMemOut32 (ACPI_PHYSICAL_ADDRESS OutAddr, UINT32 Value) 183{ 184 AcpiOsMemOutX(4, OutAddr, (UINT32)Value); 185} 186 |
|