OsdMemory.c revision 193530
1234861Sadrian/*- 2234861Sadrian * Copyright (c) 2000 Mitsaru Iwasaki 3234861Sadrian * Copyright (c) 2000 Michael Smith 4234861Sadrian * Copyright (c) 2000 BSDi 5234861Sadrian * All rights reserved. 6234861Sadrian * 7234861Sadrian * Redistribution and use in source and binary forms, with or without 8234861Sadrian * modification, are permitted provided that the following conditions 9234861Sadrian * are met: 10234861Sadrian * 1. Redistributions of source code must retain the above copyright 11234861Sadrian * notice, this list of conditions and the following disclaimer. 12234861Sadrian * 2. Redistributions in binary form must reproduce the above copyright 13234861Sadrian * notice, this list of conditions and the following disclaimer in the 14234861Sadrian * documentation and/or other materials provided with the distribution. 15234861Sadrian * 16234861Sadrian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17234861Sadrian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18234861Sadrian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19234861Sadrian * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20234861Sadrian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21234861Sadrian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22234861Sadrian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23234861Sadrian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24234861Sadrian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25234861Sadrian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26234861Sadrian * SUCH DAMAGE. 27234861Sadrian */ 28234861Sadrian 29234861Sadrian/* 30234861Sadrian * 6.2 : Memory Management 31234861Sadrian */ 32234861Sadrian 33234861Sadrian#include <sys/cdefs.h> 34234861Sadrian__FBSDID("$FreeBSD: head/sys/dev/acpica/Osd/OsdMemory.c 193530 2009-06-05 18:44:36Z jkim $"); 35234861Sadrian 36234861Sadrian#include <contrib/dev/acpica/include/acpi.h> 37234861Sadrian 38234861Sadrian#include <sys/kernel.h> 39234861Sadrian#include <sys/malloc.h> 40234861Sadrian#include <vm/vm.h> 41234861Sadrian#include <vm/pmap.h> 42234861Sadrian 43234861SadrianMALLOC_DEFINE(M_ACPICA, "acpica", "ACPI CA memory pool"); 44234861Sadrian 45234861Sadrianvoid * 46234861SadrianAcpiOsAllocate(ACPI_SIZE Size) 47234861Sadrian{ 48234861Sadrian return (malloc(Size, M_ACPICA, M_NOWAIT)); 49234861Sadrian} 50234861Sadrian 51234861Sadrianvoid 52234861SadrianAcpiOsFree(void *Memory) 53234861Sadrian{ 54234861Sadrian free(Memory, M_ACPICA); 55234861Sadrian} 56234861Sadrian 57234861Sadrianvoid * 58234861SadrianAcpiOsMapMemory(ACPI_PHYSICAL_ADDRESS PhysicalAddress, ACPI_SIZE Length) 59234861Sadrian{ 60234861Sadrian return (pmap_mapbios((vm_offset_t)PhysicalAddress, Length)); 61234861Sadrian} 62234861Sadrian 63234861Sadrianvoid 64234861SadrianAcpiOsUnmapMemory(void *LogicalAddress, ACPI_SIZE Length) 65234861Sadrian{ 66234861Sadrian pmap_unmapbios((vm_offset_t)LogicalAddress, Length); 67234861Sadrian} 68234861Sadrian 69234861SadrianACPI_STATUS 70234861SadrianAcpiOsGetPhysicalAddress(void *LogicalAddress, 71234861Sadrian ACPI_PHYSICAL_ADDRESS *PhysicalAddress) 72234861Sadrian{ 73234861Sadrian /* We can't necessarily do this, so cop out. */ 74234861Sadrian return (AE_BAD_ADDRESS); 75234861Sadrian} 76234861Sadrian 77234861SadrianACPI_STATUS 78234861SadrianAcpiOsValidateInterface (char *Interface) 79234861Sadrian{ 80234861Sadrian return (AE_SUPPORT); 81234861Sadrian} 82234861Sadrian 83234861SadrianBOOLEAN 84234861SadrianAcpiOsReadable (void *Pointer, ACPI_SIZE Length) 85234861Sadrian{ 86234861Sadrian return (TRUE); 87234861Sadrian} 88234861Sadrian 89234861SadrianBOOLEAN 90234861SadrianAcpiOsWritable (void *Pointer, ACPI_SIZE Length) 91234861Sadrian{ 92234861Sadrian return (TRUE); 93234861Sadrian} 94234861Sadrian 95234861SadrianACPI_STATUS 96234861SadrianAcpiOsReadMemory(ACPI_PHYSICAL_ADDRESS Address, UINT32 *Value, UINT32 Width) 97234861Sadrian{ 98234861Sadrian void *LogicalAddress; 99234861Sadrian 100234861Sadrian LogicalAddress = AcpiOsMapMemory(Address, Width / 8); 101234861Sadrian if (LogicalAddress == NULL) 102234861Sadrian return (AE_NOT_EXIST); 103234861Sadrian 104234861Sadrian switch (Width) { 105234861Sadrian case 8: 106234861Sadrian *(u_int8_t *)Value = (*(volatile u_int8_t *)LogicalAddress); 107234861Sadrian break; 108234861Sadrian case 16: 109234861Sadrian *(u_int16_t *)Value = (*(volatile u_int16_t *)LogicalAddress); 110234861Sadrian break; 111234861Sadrian case 32: 112234861Sadrian *(u_int32_t *)Value = (*(volatile u_int32_t *)LogicalAddress); 113234861Sadrian break; 114234861Sadrian case 64: 115234861Sadrian *(u_int64_t *)Value = (*(volatile u_int64_t *)LogicalAddress); 116234861Sadrian break; 117234861Sadrian default: 118 /* debug trap goes here */ 119 break; 120 } 121 122 AcpiOsUnmapMemory(LogicalAddress, Width / 8); 123 124 return (AE_OK); 125} 126 127ACPI_STATUS 128AcpiOsWriteMemory(ACPI_PHYSICAL_ADDRESS Address, UINT32 Value, UINT32 Width) 129{ 130 void *LogicalAddress; 131 132 LogicalAddress = AcpiOsMapMemory(Address, Width / 8); 133 if (LogicalAddress == NULL) 134 return (AE_NOT_EXIST); 135 136 switch (Width) { 137 case 8: 138 (*(volatile u_int8_t *)LogicalAddress) = Value & 0xff; 139 break; 140 case 16: 141 (*(volatile u_int16_t *)LogicalAddress) = Value & 0xffff; 142 break; 143 case 32: 144 (*(volatile u_int32_t *)LogicalAddress) = Value & 0xffffffff; 145 break; 146 case 64: 147 (*(volatile u_int64_t *)LogicalAddress) = Value; 148 break; 149 default: 150 /* debug trap goes here */ 151 break; 152 } 153 154 AcpiOsUnmapMemory(LogicalAddress, Width / 8); 155 156 return (AE_OK); 157} 158