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: releng/8.1/sys/dev/acpica/Osd/OsdMemory.c 193530 2009-06-05 18:44:36Z jkim $");
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 }
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