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/*-
* Copyright (c) 2003 Marcel Moolenaar
* 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 ``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 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <contrib/dev/acpica/acpi.h>
#define APIC_IO_SAPIC 6
#define APIC_LOCAL_SAPIC 7
#pragma pack(1)
typedef struct /* LOCAL SAPIC */
{
ACPI_SUBTABLE_HEADER Header;
UINT8 ProcessorId; /* ACPI processor id */
UINT8 LocalSapicId; /* Processor local SAPIC id */
UINT8 LocalSapicEid; /* Processor local SAPIC eid */
UINT8 Reserved[3];
UINT32 ProcessorEnabled: 1;
UINT32 FlagsReserved: 31;
} LOCAL_SAPIC;
typedef struct /* IO SAPIC */
{
ACPI_SUBTABLE_HEADER Header;
UINT8 IoSapicId; /* I/O SAPIC ID */
UINT8 Reserved; /* reserved - must be zero */
UINT32 Vector; /* interrupt base */
UINT64 IoSapicAddress; /* SAPIC's physical address */
} IO_SAPIC;
/*
*/
struct {
ACPI_TABLE_MADT MADT;
ACPI_MADT_LOCAL_SAPIC cpu0;
ACPI_MADT_LOCAL_SAPIC cpu1;
ACPI_MADT_LOCAL_SAPIC cpu2;
ACPI_MADT_LOCAL_SAPIC cpu3;
ACPI_MADT_IO_SAPIC sapic;
} apic = {
/* Header. */
{
ACPI_SIG_MADT, /* Signature. */
sizeof(apic), /* Length of table. */
0, /* ACPI minor revision. */
0, /* Checksum. */
"FBSD", /* OEM Id. */
"SKI", /* OEM table Id. */
0, /* OEM revision. */
"FBSD", /* ASL compiler Id. */
0, /* ASL revision. */
0xfee00000,
},
/* cpu0. */
{
APIC_LOCAL_SAPIC, /* Type. */
sizeof(apic.cpu0), /* Length. */
0, /* ACPI processor id */
0, /* Processor local SAPIC id */
0, /* Processor local SAPIC eid */
{ 0, 0, 0 },
1, /* FL: Enabled. */
},
/* cpu1. */
{
APIC_LOCAL_SAPIC, /* Type. */
sizeof(apic.cpu1), /* Length. */
1, /* ACPI processor id */
0, /* Processor local SAPIC id */
1, /* Processor local SAPIC eid */
{ 0, 0, 0 },
1, /* FL: Enabled. */
},
/* cpu2. */
{
APIC_LOCAL_SAPIC, /* Type. */
sizeof(apic.cpu2), /* Length. */
2, /* ACPI processor id */
1, /* Processor local SAPIC id */
0, /* Processor local SAPIC eid */
{ 0, 0, 0 },
0, /* FL: Enabled. */
},
/* cpu3. */
{
APIC_LOCAL_SAPIC, /* Type. */
sizeof(apic.cpu3), /* Length. */
3, /* ACPI processor id */
1, /* Processor local SAPIC id */
1, /* Processor local SAPIC eid */
{ 0, 0, 0 },
0, /* FL: Enabled. */
},
/* sapic. */
{
APIC_IO_SAPIC, /* Type. */
sizeof(apic.sapic), /* Length. */
4, /* IO SAPIC id. */
0,
16, /* Interrupt base. */
0xfec00000 /* IO SAPIC address. */
}
};
struct {
ACPI_TABLE_HEADER Header;
UINT64 apic_tbl;
} xsdt = {
{
ACPI_SIG_XSDT, /* Signature. */
sizeof(xsdt), /* Length of table. */
0, /* ACPI minor revision. */
0, /* XXX checksum. */
"FBSD", /* OEM Id. */
"SKI", /* OEM table Id. */
0, /* OEM revision. */
"FBSD", /* ASL compiler Id. */
0 /* ASL revision. */
},
0UL /* XXX APIC table address. */
};
ACPI_TABLE_RSDP acpi_root = {
ACPI_SIG_RSDP,
0, /* XXX checksum. */
"FBSD",
2, /* ACPI Rev 2.0. */
0UL,
sizeof(xsdt), /* XSDT length. */
0UL, /* XXX PA of XSDT. */
0, /* XXX Extended checksum. */
};
static void
cksum(void *addr, int sz, UINT8 *sum)
{
UINT8 *p, s;
p = addr;
s = 0;
while (sz--)
s += *p++;
*sum = -s;
}
void
acpi_stub_init(void)
{
acpi_root.XsdtPhysicalAddress = (UINT64)&xsdt;
cksum(&acpi_root, 20, &acpi_root.Checksum);
cksum(&acpi_root, sizeof(acpi_root), &acpi_root.ExtendedChecksum);
cksum(&apic, sizeof(apic), &apic.MADT.Header.Checksum);
xsdt.apic_tbl = (UINT32)&apic;
cksum(&xsdt, sizeof(xsdt), &xsdt.Header.Checksum);
}
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