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 *
AcpiOsAllocate(ACPI_SIZE Size)44 AcpiOsAllocate(ACPI_SIZE Size)
45 {
46 return (malloc(Size, M_ACPICA, M_NOWAIT));
47 }
48
49 void
AcpiOsFree(void * Memory)50 AcpiOsFree(void *Memory)
51 {
52 free(Memory, M_ACPICA);
53 }
54
55 void *
AcpiOsMapMemory(ACPI_PHYSICAL_ADDRESS PhysicalAddress,ACPI_SIZE Length)56 AcpiOsMapMemory(ACPI_PHYSICAL_ADDRESS PhysicalAddress, ACPI_SIZE Length)
57 {
58 return (pmap_mapbios((vm_offset_t)PhysicalAddress, Length));
59 }
60
61 void
AcpiOsUnmapMemory(void * LogicalAddress,ACPI_SIZE Length)62 AcpiOsUnmapMemory(void *LogicalAddress, ACPI_SIZE Length)
63 {
64 pmap_unmapbios(LogicalAddress, Length);
65 }
66
67 ACPI_STATUS
AcpiOsGetPhysicalAddress(void * LogicalAddress,ACPI_PHYSICAL_ADDRESS * PhysicalAddress)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
AcpiOsReadable(void * Pointer,ACPI_SIZE Length)76 AcpiOsReadable (void *Pointer, ACPI_SIZE Length)
77 {
78 return (TRUE);
79 }
80
81 BOOLEAN
AcpiOsWritable(void * Pointer,ACPI_SIZE Length)82 AcpiOsWritable (void *Pointer, ACPI_SIZE Length)
83 {
84 return (TRUE);
85 }
86
87 ACPI_STATUS
AcpiOsReadMemory(ACPI_PHYSICAL_ADDRESS Address,UINT64 * Value,UINT32 Width)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
AcpiOsWriteMemory(ACPI_PHYSICAL_ADDRESS Address,UINT64 Value,UINT32 Width)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