Home | History | Annotate | Line # | Download | only in acpica
OsdMemory.c revision 1.2 
      1 /*	$NetBSD: OsdMemory.c,v 1.2 2007/12/09 20:27:54 jmcneill Exp $	*/
      2 
      3 /*
      4  * Copyright 2001 Wasabi Systems, Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed for the NetBSD Project by
     20  *	Wasabi Systems, Inc.
     21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     22  *    or promote products derived from this software without specific prior
     23  *    written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35  * POSSIBILITY OF SUCH DAMAGE.
     36  */
     37 
     38 /*
     39  * OS Services Layer
     40  *
     41  * 6.2: Memory management.
     42  */
     43 
     44 #include <sys/cdefs.h>
     45 __KERNEL_RCSID(0, "$NetBSD: OsdMemory.c,v 1.2 2007/12/09 20:27:54 jmcneill Exp $");
     46 
     47 #include <sys/param.h>
     48 #include <sys/malloc.h>
     49 
     50 #include <dev/acpi/acpica.h>
     51 
     52 #include <machine/acpi_machdep.h>
     53 
     54 MALLOC_DECLARE(M_ACPI);
     55 
     56 /*
     57  * AcpiOsMapMemory:
     58  *
     59  *	Map physical memory into the caller's address space.
     60  */
     61 void *
     62 AcpiOsMapMemory(ACPI_PHYSICAL_ADDRESS PhysicalAddress, ACPI_SIZE Length)
     63 {
     64 	ACPI_STATUS Status;
     65 	void *LogicalAddress = NULL;
     66 
     67 	Status = acpi_md_OsMapMemory(PhysicalAddress, Length, &LogicalAddress);
     68 	if (ACPI_FAILURE (Status))
     69 		return NULL;
     70 	return LogicalAddress;
     71 }
     72 
     73 /*
     74  * AcpiOsUnmapMemory:
     75  *
     76  *	Remove a physical to logical memory mapping.
     77  */
     78 void
     79 AcpiOsUnmapMemory(void *LogicalAddress, ACPI_SIZE Length)
     80 {
     81 
     82 	acpi_md_OsUnmapMemory(LogicalAddress, Length);
     83 }
     84 
     85 /*
     86  * AcpiOsGetPhysicalAddress:
     87  *
     88  *	Translate a logical address to a physical address.
     89  */
     90 ACPI_STATUS
     91 AcpiOsGetPhysicalAddress(void *LogicalAddress,
     92     ACPI_PHYSICAL_ADDRESS *PhysicalAddress)
     93 {
     94 
     95 	return acpi_md_OsGetPhysicalAddress(LogicalAddress, PhysicalAddress);
     96 }
     97 
     98 /*
     99  * AcpiOsAllocate:
    100  *
    101  *	Allocate memory from the dynamic memory pool.
    102  */
    103 void *
    104 AcpiOsAllocate(ACPI_SIZE Size)
    105 {
    106 
    107 	return malloc(Size, M_ACPI, M_NOWAIT);
    108 }
    109 
    110 /*
    111  * AcpiOsFree:
    112  *
    113  *	Free previously allocated memory.
    114  */
    115 void
    116 AcpiOsFree(void *Memory)
    117 {
    118 
    119 	free(Memory, M_ACPI);
    120 }
    121 
    122 
    123 /*
    124  * AcpiOsReadable:
    125  *
    126  *	Check if a memory region is readable.
    127  */
    128 BOOLEAN
    129 AcpiOsReadable(void *Pointer, ACPI_SIZE Length)
    130 {
    131 
    132 	return acpi_md_OsReadable(Pointer, Length);
    133 }
    134 
    135 /*
    136  * AcpiOsWritable:
    137  *
    138  *	Check if a memory region is writable (and readable).
    139  */
    140 BOOLEAN
    141 AcpiOsWritable(void *Pointer, ACPI_SIZE Length)
    142 {
    143 
    144 	return acpi_md_OsWritable(Pointer, Length);
    145 }
    146 
    147 ACPI_STATUS
    148 AcpiOsValidateInterface(char *Interface)
    149 {
    150 
    151 	return AE_SUPPORT;
    152 }
    153 
    154 ACPI_STATUS
    155 AcpiOsValidateAddress(UINT8 SpaceId, ACPI_PHYSICAL_ADDRESS Address,
    156     ACPI_SIZE Length)
    157 {
    158 
    159 	return AE_OK;
    160 }
    161