284 lines
7.1 KiB
C
284 lines
7.1 KiB
C
/*-
|
|
* Copyright (c) 2001 Doug Rabson
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include "acpi.h"
|
|
|
|
#include <machine/cpu.h>
|
|
|
|
struct sapic *sapic_create(int, int, u_int64_t);
|
|
|
|
#pragma pack(1)
|
|
|
|
#define APIC_INTERRUPT_SOURCE_OVERRIDE 2
|
|
#define APIC_NMI 3
|
|
#define APIC_LOCAL_APIC_NMI 4
|
|
#define APIC_LOCAL_APIC_OVERRIDE 5
|
|
#define APIC_IO_SAPIC 6
|
|
#define APIC_LOCAL_SAPIC 7
|
|
#define APIC_PLATFORM_INTERRUPT 8
|
|
|
|
typedef struct /* Interrupt Source Override */
|
|
{
|
|
APIC_HEADER Header;
|
|
UINT8 Bus;
|
|
UINT8 Source;
|
|
UINT32 GlobalSystemInterrupt;
|
|
UINT16 Flags;
|
|
} INTERRUPT_SOURCE_OVERRIDE;
|
|
|
|
typedef struct /* IO SAPIC */
|
|
{
|
|
APIC_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;
|
|
|
|
typedef struct /* LOCAL SAPIC */
|
|
{
|
|
APIC_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 /* PLATFORM INTERRUPT SOURCE */
|
|
{
|
|
APIC_HEADER Header;
|
|
UINT16 Polarity : 2; /* Polarity of input signal */
|
|
UINT16 TriggerMode: 2; /* Trigger mode of input signal */
|
|
UINT16 Reserved1 : 12;
|
|
UINT8 InterruptType; /* 1-PMI, 2-INIT, 3-Error */
|
|
UINT8 ProcessorId; /* Processor ID of destination */
|
|
UINT8 ProcessorEid; /* Processor EID of destination */
|
|
UINT8 IoSapicVector; /* Value for redirection table */
|
|
UINT32 GlobalSystemInterrupt; /* Global System Interrupt */
|
|
UINT32 Reserved2;
|
|
} PLATFORM_INTERRUPT_SOURCE;
|
|
|
|
#pragma pack()
|
|
|
|
static void
|
|
parse_interrupt_override(INTERRUPT_SOURCE_OVERRIDE *override)
|
|
{
|
|
if (bootverbose)
|
|
printf("\t\tBus=%d, Source=%d, Irq=0x%x\n", override->Bus,
|
|
override->Source, override->GlobalSystemInterrupt);
|
|
}
|
|
|
|
static void
|
|
parse_io_sapic(IO_SAPIC *sapic)
|
|
{
|
|
if (bootverbose)
|
|
printf("\t\tId=0x%x, Vector=0x%x, Address=0x%lx\n",
|
|
sapic->IoSapicId, sapic->Vector, sapic->IoSapicAddress);
|
|
sapic_create(sapic->IoSapicId, sapic->Vector, sapic->IoSapicAddress);
|
|
}
|
|
|
|
static void
|
|
parse_local_sapic(LOCAL_SAPIC *sapic)
|
|
{
|
|
if (bootverbose) {
|
|
printf("\t\tProcessorId=0x%x, Id=0x%x, Eid=0x%x",
|
|
sapic->ProcessorId, sapic->LocalSapicId,
|
|
sapic->LocalSapicEid);
|
|
if (!sapic->ProcessorEnabled)
|
|
printf(" (disabled)");
|
|
printf("\n");
|
|
}
|
|
#ifdef SMP
|
|
if (sapic->ProcessorEnabled)
|
|
cpu_mp_add(sapic->ProcessorId, sapic->LocalSapicId,
|
|
sapic->LocalSapicEid);
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
parse_platform_interrupt(PLATFORM_INTERRUPT_SOURCE *source)
|
|
{
|
|
if (bootverbose)
|
|
printf("\t\tPolarity=%d, TriggerMode=%d, Id=0x%x, "
|
|
"Eid=0x%x, Vector=0x%x, Irq=%d\n", source->Polarity,
|
|
source->TriggerMode, source->ProcessorId,
|
|
source->ProcessorEid, source->IoSapicVector,
|
|
source->GlobalSystemInterrupt);
|
|
}
|
|
|
|
static int
|
|
parse_madt(APIC_TABLE *madt, int countcpus)
|
|
{
|
|
char *end, *p;
|
|
int cpus;
|
|
|
|
end = (char *)madt + madt->Header.Length;
|
|
|
|
/*
|
|
* MADT header is followed by a number of variable length
|
|
* structures.
|
|
*/
|
|
|
|
if (countcpus) {
|
|
cpus = 0;
|
|
|
|
for (p = (char *)(madt + 1); p < end; ) {
|
|
APIC_HEADER *head = (APIC_HEADER *)p;
|
|
|
|
if (head->Type == APIC_LOCAL_SAPIC) {
|
|
LOCAL_SAPIC *sapic = (LOCAL_SAPIC *) head;
|
|
if (sapic->ProcessorEnabled)
|
|
cpus++;
|
|
}
|
|
p = p + head->Length;
|
|
}
|
|
|
|
return (cpus);
|
|
}
|
|
|
|
for (p = (char *)(madt + 1); p < end; ) {
|
|
APIC_HEADER *head = (APIC_HEADER *)p;
|
|
|
|
if (bootverbose)
|
|
printf("\t");
|
|
|
|
switch (head->Type) {
|
|
case APIC_PROC:
|
|
if (bootverbose)
|
|
printf("Local APIC entry\n");
|
|
break;
|
|
|
|
case APIC_IO:
|
|
if (bootverbose)
|
|
printf("I/O APIC entry\n");
|
|
break;
|
|
|
|
case APIC_INTERRUPT_SOURCE_OVERRIDE:
|
|
if (bootverbose)
|
|
printf("Interrupt source override entry\n");
|
|
parse_interrupt_override
|
|
((INTERRUPT_SOURCE_OVERRIDE *) head);
|
|
break;
|
|
|
|
case APIC_NMI:
|
|
if (bootverbose)
|
|
printf("NMI entry\n");
|
|
break;
|
|
|
|
case APIC_LOCAL_APIC_NMI:
|
|
if (bootverbose)
|
|
printf("Local APIC NMI entry\n");
|
|
break;
|
|
|
|
|
|
case APIC_LOCAL_APIC_OVERRIDE:
|
|
if (bootverbose)
|
|
printf("Local APIC override entry\n");
|
|
break;
|
|
|
|
case APIC_IO_SAPIC:
|
|
if (bootverbose)
|
|
printf("I/O SAPIC entry\n");
|
|
parse_io_sapic((IO_SAPIC *) head);
|
|
break;
|
|
|
|
case APIC_LOCAL_SAPIC:
|
|
if (bootverbose)
|
|
printf("Local SAPIC entry\n");
|
|
parse_local_sapic((LOCAL_SAPIC *) head);
|
|
break;
|
|
|
|
case APIC_PLATFORM_INTERRUPT:
|
|
if (bootverbose)
|
|
printf("Platform interrupt entry\n");
|
|
parse_platform_interrupt
|
|
((PLATFORM_INTERRUPT_SOURCE *) head);
|
|
break;
|
|
|
|
default:
|
|
if (bootverbose)
|
|
printf("Unknown type %d entry\n", head->Type);
|
|
break;
|
|
}
|
|
|
|
p = p + head->Length;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
parse_table(int countcpus)
|
|
{
|
|
ACPI_POINTER rsdp_ptr;
|
|
RSDP_DESCRIPTOR *rsdp;
|
|
XSDT_DESCRIPTOR *xsdt;
|
|
ACPI_TABLE_HEADER *table;
|
|
int i, count;
|
|
|
|
if (AcpiOsGetRootPointer(ACPI_LOGICAL_ADDRESSING, &rsdp_ptr) != AE_OK)
|
|
return 0;
|
|
|
|
rsdp = (RSDP_DESCRIPTOR *)IA64_PHYS_TO_RR7(rsdp_ptr.Pointer.Physical);
|
|
xsdt = (XSDT_DESCRIPTOR *)IA64_PHYS_TO_RR7(rsdp->XsdtPhysicalAddress);
|
|
|
|
count = (UINT64 *)((char *)xsdt + xsdt->Header.Length)
|
|
- xsdt->TableOffsetEntry;
|
|
for (i = 0; i < count; i++) {
|
|
table = (ACPI_TABLE_HEADER *)
|
|
IA64_PHYS_TO_RR7(xsdt->TableOffsetEntry[i]);
|
|
|
|
if (bootverbose && !countcpus)
|
|
printf("Table '%c%c%c%c' at %p\n", table->Signature[0],
|
|
table->Signature[1], table->Signature[2],
|
|
table->Signature[3], table);
|
|
|
|
if (!strncmp(table->Signature, APIC_SIG, 4))
|
|
return (parse_madt((APIC_TABLE *) table, countcpus));
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
ia64_probe_sapics(void)
|
|
{
|
|
parse_table(0);
|
|
}
|
|
|
|
/*
|
|
* Count the number of local SAPIC entries in the APIC table. Every enabled
|
|
* entry corresponds to a processor.
|
|
*/
|
|
int
|
|
ia64_count_cpus(void)
|
|
{
|
|
return (parse_table(1));
|
|
}
|