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 */ 28 29 /* 30 * 6.2 : Memory Management 31 */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 #include <contrib/dev/acpica/include/acpi.h> 37 38 #include <sys/kernel.h> 39 #include <sys/malloc.h> 40 #include <vm/vm.h> 41 #include <vm/pmap.h> 42 43 MALLOC_DEFINE(M_ACPICA, "acpica", "ACPI CA memory pool"); 44 45 void * 46 AcpiOsAllocate(ACPI_SIZE Size) 47 { 48 return (malloc(Size, M_ACPICA, M_NOWAIT)); 49 } 50 51 void 52 AcpiOsFree(void *Memory) 53 { 54 free(Memory, M_ACPICA); 55 } 56 57 void * 58 AcpiOsMapMemory(ACPI_PHYSICAL_ADDRESS PhysicalAddress, ACPI_SIZE Length) 59 { 60 return (pmap_mapbios((vm_offset_t)PhysicalAddress, Length)); 61 } 62 63 void 64 AcpiOsUnmapMemory(void *LogicalAddress, ACPI_SIZE Length) 65 { 66 pmap_unmapbios((vm_offset_t)LogicalAddress, Length); 67 } 68 69 ACPI_STATUS 70 AcpiOsGetPhysicalAddress(void *LogicalAddress, 71 ACPI_PHYSICAL_ADDRESS *PhysicalAddress) 72 { 73 /* We can't necessarily do this, so cop out. */ 74 return (AE_BAD_ADDRESS); 75 } 76 77 ACPI_STATUS 78 AcpiOsValidateInterface (char *Interface) 79 { 80 return (AE_SUPPORT); 81 } 82 83 BOOLEAN 84 AcpiOsReadable (void *Pointer, ACPI_SIZE Length) 85 { 86 return (TRUE); 87 } 88 89 BOOLEAN 90 AcpiOsWritable (void *Pointer, ACPI_SIZE Length) 91 { 92 return (TRUE); 93 } 94 95 ACPI_STATUS 96 AcpiOsReadMemory(ACPI_PHYSICAL_ADDRESS Address, UINT32 *Value, UINT32 Width) 97 { 98 void *LogicalAddress; 99 100 LogicalAddress = AcpiOsMapMemory(Address, Width / 8); 101 if (LogicalAddress == NULL) 102 return (AE_NOT_EXIST); 103 104 switch (Width) { 105 case 8: 106 *(u_int8_t *)Value = (*(volatile u_int8_t *)LogicalAddress); 107 break; 108 case 16: 109 *(u_int16_t *)Value = (*(volatile u_int16_t *)LogicalAddress); 110 break; 111 case 32: 112 *(u_int32_t *)Value = (*(volatile u_int32_t *)LogicalAddress); 113 break; 114 case 64: 115 *(u_int64_t *)Value = (*(volatile u_int64_t *)LogicalAddress); 116 break; 117 default: 118 /* debug trap goes here */ 119 break; 120 } 121 122 AcpiOsUnmapMemory(LogicalAddress, Width / 8); 123 124 return (AE_OK); 125 } 126 127 ACPI_STATUS 128 AcpiOsWriteMemory(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