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/*-
* Copyright (c) 2000 Mitsaru Iwasaki
* Copyright (c) 2000 Michael Smith
* Copyright (c) 2000 BSDi
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* 6.2 : Memory Management
*/
#include "acpi.h"
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <vm/vm.h>
#include <vm/pmap.h>
static MALLOC_DEFINE(M_ACPICA, "acpica", "ACPI CA memory pool");
void *
AcpiOsAllocate(UINT32 Size)
{
return(malloc(Size, M_ACPICA, M_NOWAIT));
}
void *
AcpiOsCallocate (UINT32 Size)
{
void *alloc;
alloc = malloc(Size, M_ACPICA, M_NOWAIT);
if (alloc != NULL)
bzero(alloc, Size);
return(alloc);
}
void
AcpiOsFree (void *Memory)
{
free(Memory, M_ACPICA);
}
ACPI_STATUS
AcpiOsMapMemory (ACPI_PHYSICAL_ADDRESS PhysicalAddress, UINT32 Length, void **LogicalAddress)
{
*LogicalAddress = pmap_mapdev((vm_offset_t)PhysicalAddress, Length);
if (*LogicalAddress == NULL)
return(AE_BAD_ADDRESS);
return(AE_OK);
}
void
AcpiOsUnmapMemory (void *LogicalAddress, UINT32 Length)
{
pmap_unmapdev((vm_offset_t)LogicalAddress, Length);
}
/*
* There is no clean way to do this. We make the charitable assumption
* that callers will not pass garbage to us.
*/
BOOLEAN
AcpiOsReadable (void *Pointer, UINT32 Length)
{
return(TRUE);
}
BOOLEAN
AcpiOsWritable (void *Pointer, UINT32 Length)
{
return(TRUE);
}
static __inline
UINT32
AcpiOsMemInX (UINT32 Length, ACPI_PHYSICAL_ADDRESS InAddr)
{
UINT32 Value;
void *LogicalAddress;
if (AcpiOsMapMemory(InAddr, Length, &LogicalAddress) != AE_OK) {
return(0);
}
switch (Length) {
case 1:
Value = (*(volatile u_int8_t *)LogicalAddress) & 0xff;
break;
case 2:
Value = (*(volatile u_int16_t *)LogicalAddress) & 0xffff;
break;
case 4:
Value = (*(volatile u_int32_t *)LogicalAddress);
break;
}
AcpiOsUnmapMemory(LogicalAddress, Length);
return(Value);
}
UINT8
AcpiOsMemIn8 (ACPI_PHYSICAL_ADDRESS InAddr)
{
return((UINT8)AcpiOsMemInX(1, InAddr));
}
UINT16
AcpiOsMemIn16 (ACPI_PHYSICAL_ADDRESS InAddr)
{
return((UINT16)AcpiOsMemInX(2, InAddr));
}
UINT32
AcpiOsMemIn32 (ACPI_PHYSICAL_ADDRESS InAddr)
{
return((UINT32)AcpiOsMemInX(4, InAddr));
}
static __inline
void
AcpiOsMemOutX (UINT32 Length, ACPI_PHYSICAL_ADDRESS OutAddr, UINT32 Value)
{
void *LogicalAddress;
if (AcpiOsMapMemory(OutAddr, Length, &LogicalAddress) != AE_OK) {
return;
}
switch (Length) {
case 1:
(*(volatile u_int8_t *)LogicalAddress) = Value & 0xff;
break;
case 2:
(*(volatile u_int16_t *)LogicalAddress) = Value & 0xffff;
break;
case 4:
(*(volatile u_int32_t *)LogicalAddress) = Value;
break;
}
AcpiOsUnmapMemory(LogicalAddress, Length);
}
void
AcpiOsMemOut8 (ACPI_PHYSICAL_ADDRESS OutAddr, UINT8 Value)
{
AcpiOsMemOutX(1, OutAddr, (UINT32)Value);
}
void
AcpiOsMemOut16 (ACPI_PHYSICAL_ADDRESS OutAddr, UINT16 Value)
{
AcpiOsMemOutX(2, OutAddr, (UINT32)Value);
}
void
AcpiOsMemOut32 (ACPI_PHYSICAL_ADDRESS OutAddr, UINT32 Value)
{
AcpiOsMemOutX(4, OutAddr, (UINT32)Value);
}
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