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/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_NATIVE_UINT 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 AcpiOsValidateInterface (char *Interface)
84 * There is no clean way to do this. We make the charitable assumption
85 * that callers will not pass garbage to us.
88 AcpiOsValidateAddress (UINT8 SpaceId, ACPI_PHYSICAL_ADDRESS Address,
95 AcpiOsReadable (void *Pointer, ACPI_SIZE Length)
101 AcpiOsWritable (void *Pointer, ACPI_SIZE Length)
107 AcpiOsReadMemory(ACPI_PHYSICAL_ADDRESS Address, UINT32 *Value, UINT32 Width)
109 void *LogicalAddress;
111 LogicalAddress = AcpiOsMapMemory(Address, Width / 8);
112 if (LogicalAddress == NULL)
113 return (AE_NOT_EXIST);
117 *(u_int8_t *)Value = (*(volatile u_int8_t *)LogicalAddress);
120 *(u_int16_t *)Value = (*(volatile u_int16_t *)LogicalAddress);
123 *(u_int32_t *)Value = (*(volatile u_int32_t *)LogicalAddress);
126 *(u_int64_t *)Value = (*(volatile u_int64_t *)LogicalAddress);
129 /* debug trap goes here */
133 AcpiOsUnmapMemory(LogicalAddress, Width / 8);
139 AcpiOsWriteMemory(ACPI_PHYSICAL_ADDRESS Address, UINT32 Value, UINT32 Width)
141 void *LogicalAddress;
143 LogicalAddress = AcpiOsMapMemory(Address, Width / 8);
144 if (LogicalAddress == NULL)
145 return (AE_NOT_EXIST);
149 (*(volatile u_int8_t *)LogicalAddress) = Value & 0xff;
152 (*(volatile u_int16_t *)LogicalAddress) = Value & 0xffff;
155 (*(volatile u_int32_t *)LogicalAddress) = Value & 0xffffffff;
158 (*(volatile u_int64_t *)LogicalAddress) = Value;
161 /* debug trap goes here */
165 AcpiOsUnmapMemory(LogicalAddress, Width / 8);