2 * Copyright (c) 2000 Mitsaru Iwasaki
3 * Copyright (c) 2000 Michael Smith
4 * Copyright (c) 2000 BSDi
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
28 * $FreeBSD: src/sys/dev/acpica/Osd/OsdMemory.c,v 1.10.2.1 2003/08/22 20:49:21 jhb Exp $
29 * $DragonFly: src/sys/dev/acpica/Osd/Attic/OsdMemory.c,v 1.1 2003/09/24 03:32:16 drhodus Exp $
33 * 6.2 : Memory Management
38 #include <sys/kernel.h>
39 #include <sys/malloc.h>
43 static MALLOC_DEFINE(M_ACPICA, "acpica", "ACPI CA memory pool");
46 AcpiOsAllocate(ACPI_SIZE Size)
48 return(malloc(Size, M_ACPICA, M_NOWAIT));
52 AcpiOsFree (void *Memory)
54 free(Memory, M_ACPICA);
58 AcpiOsMapMemory (ACPI_PHYSICAL_ADDRESS PhysicalAddress, ACPI_SIZE Length, void **LogicalAddress)
60 *LogicalAddress = pmap_mapdev((vm_offset_t)PhysicalAddress, Length);
61 if (*LogicalAddress == NULL)
62 return(AE_BAD_ADDRESS);
67 AcpiOsUnmapMemory (void *LogicalAddress, ACPI_SIZE Length)
69 pmap_unmapdev((vm_offset_t)LogicalAddress, Length);
73 AcpiOsGetPhysicalAddress(void *LogicalAddress, ACPI_PHYSICAL_ADDRESS *PhysicalAddress)
75 /* we can't necessarily do this, so cop out */
76 return(AE_BAD_ADDRESS);
80 * There is no clean way to do this. We make the charitable assumption
81 * that callers will not pass garbage to us.
84 AcpiOsReadable (void *Pointer, UINT32 Length)
90 AcpiOsWritable (void *Pointer, UINT32 Length)
97 ACPI_PHYSICAL_ADDRESS Address,
101 void *LogicalAddress;
103 if (AcpiOsMapMemory(Address, Width / 8, &LogicalAddress) != AE_OK) {
104 return(AE_NOT_EXIST);
109 *(u_int8_t *)Value = (*(volatile u_int8_t *)LogicalAddress);
112 *(u_int16_t *)Value = (*(volatile u_int16_t *)LogicalAddress);
115 *(u_int32_t *)Value = (*(volatile u_int32_t *)LogicalAddress);
118 *(u_int64_t *)Value = (*(volatile u_int64_t *)LogicalAddress);
121 /* debug trap goes here */
125 AcpiOsUnmapMemory(LogicalAddress, Width / 8);
132 ACPI_PHYSICAL_ADDRESS Address,
136 void *LogicalAddress;
138 if (AcpiOsMapMemory(Address, Width / 8, &LogicalAddress) != AE_OK) {
139 return(AE_NOT_EXIST);
144 (*(volatile u_int8_t *)LogicalAddress) = Value & 0xff;
147 (*(volatile u_int16_t *)LogicalAddress) = Value & 0xffff;
150 (*(volatile u_int32_t *)LogicalAddress) = Value & 0xffffffff;
153 (*(volatile u_int64_t *)LogicalAddress) = Value;
156 /* debug trap goes here */
160 AcpiOsUnmapMemory(LogicalAddress, Width / 8);