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 #include <contrib/dev/acpica/include/acpi.h> 35 36 #include <sys/kernel.h> 37 #include <sys/malloc.h> 38 #include <vm/vm.h> 39 #include <vm/pmap.h> 40 41 static MALLOC_DEFINE(M_ACPICA, "acpica", "ACPI CA memory pool"); 42 43 void * 44 AcpiOsAllocate(ACPI_SIZE Size) 45 { 46 return (malloc(Size, M_ACPICA, M_NOWAIT)); 47 } 48 49 void 50 AcpiOsFree(void *Memory) 51 { 52 free(Memory, M_ACPICA); 53 } 54 55 void * 56 AcpiOsMapMemory(ACPI_PHYSICAL_ADDRESS PhysicalAddress, ACPI_SIZE Length) 57 { 58 return (pmap_mapbios((vm_offset_t)PhysicalAddress, Length)); 59 } 60 61 void 62 AcpiOsUnmapMemory(void *LogicalAddress, ACPI_SIZE Length) 63 { 64 pmap_unmapbios(LogicalAddress, Length); 65 } 66 67 ACPI_STATUS 68 AcpiOsGetPhysicalAddress(void *LogicalAddress, 69 ACPI_PHYSICAL_ADDRESS *PhysicalAddress) 70 { 71 /* We can't necessarily do this, so cop out. */ 72 return (AE_BAD_ADDRESS); 73 } 74 75 BOOLEAN 76 AcpiOsReadable (void *Pointer, ACPI_SIZE Length) 77 { 78 return (TRUE); 79 } 80 81 BOOLEAN 82 AcpiOsWritable (void *Pointer, ACPI_SIZE Length) 83 { 84 return (TRUE); 85 } 86 87 ACPI_STATUS 88 AcpiOsReadMemory(ACPI_PHYSICAL_ADDRESS Address, UINT64 *Value, UINT32 Width) 89 { 90 void *LogicalAddress; 91 92 LogicalAddress = pmap_mapdev(Address, Width / 8); 93 if (LogicalAddress == NULL) 94 return (AE_NOT_EXIST); 95 96 switch (Width) { 97 case 8: 98 *Value = *(volatile uint8_t *)LogicalAddress; 99 break; 100 case 16: 101 *Value = *(volatile uint16_t *)LogicalAddress; 102 break; 103 case 32: 104 *Value = *(volatile uint32_t *)LogicalAddress; 105 break; 106 case 64: 107 *Value = *(volatile uint64_t *)LogicalAddress; 108 break; 109 } 110 111 pmap_unmapdev(LogicalAddress, Width / 8); 112 113 return (AE_OK); 114 } 115 116 ACPI_STATUS 117 AcpiOsWriteMemory(ACPI_PHYSICAL_ADDRESS Address, UINT64 Value, UINT32 Width) 118 { 119 void *LogicalAddress; 120 121 LogicalAddress = pmap_mapdev(Address, Width / 8); 122 if (LogicalAddress == NULL) 123 return (AE_NOT_EXIST); 124 125 switch (Width) { 126 case 8: 127 *(volatile uint8_t *)LogicalAddress = Value; 128 break; 129 case 16: 130 *(volatile uint16_t *)LogicalAddress = Value; 131 break; 132 case 32: 133 *(volatile uint32_t *)LogicalAddress = Value; 134 break; 135 case 64: 136 *(volatile uint64_t *)LogicalAddress = Value; 137 break; 138 } 139 140 pmap_unmapdev(LogicalAddress, Width / 8); 141 142 return (AE_OK); 143 } 144