OsdMemory.c revision 193530 
1272343Sngie/*-
2272343Sngie * Copyright (c) 2000 Mitsaru Iwasaki
3272343Sngie * Copyright (c) 2000 Michael Smith
4272343Sngie * Copyright (c) 2000 BSDi
5272343Sngie * All rights reserved.
6272343Sngie *
7272343Sngie * Redistribution and use in source and binary forms, with or without
8272343Sngie * modification, are permitted provided that the following conditions
9272343Sngie * are met:
10272343Sngie * 1. Redistributions of source code must retain the above copyright
11272343Sngie *    notice, this list of conditions and the following disclaimer.
12272343Sngie * 2. Redistributions in binary form must reproduce the above copyright
13272343Sngie *    notice, this list of conditions and the following disclaimer in the
14272343Sngie *    documentation and/or other materials provided with the distribution.
15272343Sngie *
16272343Sngie * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17272343Sngie * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18272343Sngie * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19272343Sngie * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20272343Sngie * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21272343Sngie * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22272343Sngie * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23272343Sngie * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24272343Sngie * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25272343Sngie * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26272343Sngie * SUCH DAMAGE.
27272343Sngie */
28272343Sngie
29272343Sngie/*
30272343Sngie * 6.2 : Memory Management
31272343Sngie */
32272343Sngie
33272343Sngie#include <sys/cdefs.h>
34272343Sngie__FBSDID("$FreeBSD: head/sys/dev/acpica/Osd/OsdMemory.c 193530 2009-06-05 18:44:36Z jkim $");
35272343Sngie
36272343Sngie#include <contrib/dev/acpica/include/acpi.h>
37272343Sngie
38272343Sngie#include <sys/kernel.h>
39272343Sngie#include <sys/malloc.h>
40272343Sngie#include <vm/vm.h>
41272343Sngie#include <vm/pmap.h>
42272343Sngie
43272343SngieMALLOC_DEFINE(M_ACPICA, "acpica", "ACPI CA memory pool");
44272343Sngie
45272343Sngievoid *
46272343SngieAcpiOsAllocate(ACPI_SIZE Size)
47272343Sngie{
48272343Sngie    return (malloc(Size, M_ACPICA, M_NOWAIT));
49272343Sngie}
50272343Sngie
51272343Sngievoid
52272343SngieAcpiOsFree(void *Memory)
53272343Sngie{
54272343Sngie    free(Memory, M_ACPICA);
55272343Sngie}
56272343Sngie
57272343Sngievoid *
58272343SngieAcpiOsMapMemory(ACPI_PHYSICAL_ADDRESS PhysicalAddress, ACPI_SIZE Length)
59272343Sngie{
60272343Sngie    return (pmap_mapbios((vm_offset_t)PhysicalAddress, Length));
61272343Sngie}
62272343Sngie
63272343Sngievoid
64272343SngieAcpiOsUnmapMemory(void *LogicalAddress, ACPI_SIZE Length)
65272343Sngie{
66272343Sngie    pmap_unmapbios((vm_offset_t)LogicalAddress, Length);
67272343Sngie}
68272343Sngie
69272343SngieACPI_STATUS
70272343SngieAcpiOsGetPhysicalAddress(void *LogicalAddress,
71272343Sngie    ACPI_PHYSICAL_ADDRESS *PhysicalAddress)
72272343Sngie{
73272343Sngie    /* We can't necessarily do this, so cop out. */
74272343Sngie    return (AE_BAD_ADDRESS);
75272343Sngie}
76272343Sngie
77272343SngieACPI_STATUS
78272343SngieAcpiOsValidateInterface (char *Interface)
79272343Sngie{
80272343Sngie    return (AE_SUPPORT);
81272343Sngie}
82272343Sngie
83272343SngieBOOLEAN
84272343SngieAcpiOsReadable (void *Pointer, ACPI_SIZE Length)
85272343Sngie{
86272343Sngie    return (TRUE);
87272343Sngie}
88272343Sngie
89272343SngieBOOLEAN
90272343SngieAcpiOsWritable (void *Pointer, ACPI_SIZE Length)
91272343Sngie{
92    return (TRUE);
93}
94
95ACPI_STATUS
96AcpiOsReadMemory(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
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