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
30 * 6.2 : Memory Management
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 #include <contrib/dev/acpica/include/acpi.h>
38 #include <sys/kernel.h>
39 #include <sys/malloc.h>
43 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)
60 return (pmap_mapbios((vm_offset_t)PhysicalAddress, Length));
64 AcpiOsUnmapMemory(void *LogicalAddress, ACPI_SIZE Length)
66 pmap_unmapbios((vm_offset_t)LogicalAddress, Length);
70 AcpiOsGetPhysicalAddress(void *LogicalAddress,
71 ACPI_PHYSICAL_ADDRESS *PhysicalAddress)
73 /* We can't necessarily do this, so cop out. */
74 return (AE_BAD_ADDRESS);
78 AcpiOsReadable (void *Pointer, ACPI_SIZE Length)
84 AcpiOsWritable (void *Pointer, ACPI_SIZE Length)
90 AcpiOsReadMemory(ACPI_PHYSICAL_ADDRESS Address, UINT32 *Value, UINT32 Width)
94 LogicalAddress = pmap_mapdev(Address, Width / 8);
95 if (LogicalAddress == NULL)
96 return (AE_NOT_EXIST);
100 *Value = *(volatile uint8_t *)LogicalAddress;
103 *Value = *(volatile uint16_t *)LogicalAddress;
106 *Value = *(volatile uint32_t *)LogicalAddress;
110 pmap_unmapdev((vm_offset_t)LogicalAddress, Width / 8);
116 AcpiOsWriteMemory(ACPI_PHYSICAL_ADDRESS Address, UINT32 Value, UINT32 Width)
118 void *LogicalAddress;
120 LogicalAddress = pmap_mapdev(Address, Width / 8);
121 if (LogicalAddress == NULL)
122 return (AE_NOT_EXIST);
126 *(volatile uint8_t *)LogicalAddress = Value;
129 *(volatile uint16_t *)LogicalAddress = Value;
132 *(volatile uint32_t *)LogicalAddress = Value;
136 pmap_unmapdev((vm_offset_t)LogicalAddress, Width / 8);