* Always retrieve the APIC ID from the descriptors.
* Actually program the IO-APIC ID when configuring the IO-APIC. * Moved some debug output around. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41447 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Michael Lotz
parent
5e36c12a42
commit
6347525607
@ -46,7 +46,7 @@
|
||||
|
||||
// Fields for the id register
|
||||
#define IO_APIC_ID_SHIFT 24
|
||||
#define IO_APIC_ID_MASK 0x0f
|
||||
#define IO_APIC_ID_MASK 0xff
|
||||
|
||||
// Fields for the version register
|
||||
#define IO_APIC_VERSION_SHIFT 0
|
||||
@ -94,6 +94,8 @@ struct ioapic_registers {
|
||||
|
||||
struct ioapic {
|
||||
uint8 number;
|
||||
uint8 apic_id;
|
||||
uint32 version;
|
||||
uint8 max_redirection_entry;
|
||||
uint8 global_interrupt_base;
|
||||
uint8 global_interrupt_last;
|
||||
@ -106,12 +108,22 @@ struct ioapic {
|
||||
};
|
||||
|
||||
|
||||
static ioapic sIOAPICs = { 0, 0, 0, 0, 0, -1, NULL, NULL };
|
||||
static ioapic sIOAPICs = { 0, 0, 0, 0, 0, 0, 0, -1, NULL, NULL };
|
||||
|
||||
|
||||
// #pragma mark - I/O APIC
|
||||
|
||||
|
||||
static void
|
||||
print_ioapic(struct ioapic& ioapic)
|
||||
{
|
||||
dprintf("io-apic %u has range %u-%u, %u entries, version 0x%08lx, "
|
||||
"apic-id %u\n", ioapic.number, ioapic.global_interrupt_base,
|
||||
ioapic.global_interrupt_last, ioapic.max_redirection_entry + 1,
|
||||
ioapic.version, ioapic.apic_id);
|
||||
}
|
||||
|
||||
|
||||
static inline struct ioapic*
|
||||
find_ioapic(int32 gsi)
|
||||
{
|
||||
@ -286,8 +298,8 @@ ioapic_map_ioapic(struct ioapic& ioapic, phys_addr_t physicalAddress)
|
||||
|
||||
dprintf("mapped io-apic %u to %p\n", ioapic.number, ioapic.registers);
|
||||
|
||||
uint32 version = ioapic_read_32(ioapic, IO_APIC_VERSION);
|
||||
if (version == 0xffffffff) {
|
||||
ioapic.version = ioapic_read_32(ioapic, IO_APIC_VERSION);
|
||||
if (ioapic.version == 0xffffffff) {
|
||||
dprintf("io-apic %u seems inaccessible, not using it\n",
|
||||
ioapic.number);
|
||||
vm_delete_area(B_SYSTEM_TEAM, ioapic.register_area, true);
|
||||
@ -297,34 +309,29 @@ ioapic_map_ioapic(struct ioapic& ioapic, phys_addr_t physicalAddress)
|
||||
}
|
||||
|
||||
ioapic.max_redirection_entry
|
||||
= ((version >> IO_APIC_MAX_REDIRECTION_ENTRY_SHIFT)
|
||||
= ((ioapic.version >> IO_APIC_MAX_REDIRECTION_ENTRY_SHIFT)
|
||||
& IO_APIC_MAX_REDIRECTION_ENTRY_MASK);
|
||||
|
||||
ioapic.global_interrupt_last
|
||||
= ioapic.global_interrupt_base + ioapic.max_redirection_entry;
|
||||
|
||||
uint8 id = (ioapic_read_32(ioapic, IO_APIC_ID) >> IO_APIC_ID_SHIFT)
|
||||
& IO_APIC_ID_MASK;
|
||||
|
||||
dprintf("io-apic %u has range %u-%u, %u entries, version 0x%08lx, "
|
||||
"apic-id %u\n", ioapic.number, ioapic.global_interrupt_base,
|
||||
ioapic.global_interrupt_last, ioapic.max_redirection_entry + 1,
|
||||
version, id);
|
||||
|
||||
return B_OK;
|
||||
}
|
||||
|
||||
|
||||
static status_t
|
||||
ioapic_initialize_ioapic(struct ioapic& ioapic, uint64 targetAPIC)
|
||||
ioapic_initialize_ioapic(struct ioapic& ioapic, uint8 targetAPIC)
|
||||
{
|
||||
// program the APIC ID
|
||||
ioapic_write_32(ioapic, IO_APIC_ID, ioapic.apic_id << IO_APIC_ID_SHIFT);
|
||||
|
||||
// program the interrupt vectors of the io-apic
|
||||
ioapic.level_triggered_mask = 0;
|
||||
uint8 gsi = ioapic.global_interrupt_base;
|
||||
for (uint8 i = 0; i <= ioapic.max_redirection_entry; i++, gsi++) {
|
||||
// initialize everything to deliver to the boot CPU in physical mode
|
||||
// and masked until explicitly enabled through enable_io_interrupt()
|
||||
uint64 entry = (targetAPIC << IO_APIC_DESTINATION_FIELD_SHIFT)
|
||||
uint64 entry = ((uint64)targetAPIC << IO_APIC_DESTINATION_FIELD_SHIFT)
|
||||
| (IO_APIC_INTERRUPT_MASKED << IO_APIC_INTERRUPT_MASK_SHIFT)
|
||||
| (IO_APIC_DESTINATION_MODE_PHYSICAL << IO_APIC_DESTINATION_MODE_SHIFT)
|
||||
| ((gsi + ARCH_INTERRUPT_BASE) << IO_APIC_INTERRUPT_VECTOR_SHIFT);
|
||||
@ -373,24 +380,21 @@ acpi_enumerate_ioapics(acpi_module_info* acpi)
|
||||
case ACPI_MADT_TYPE_IO_APIC:
|
||||
{
|
||||
acpi_madt_io_apic* info = (acpi_madt_io_apic*)apicEntry;
|
||||
dprintf("found io-apic with address 0x%08lx and global "
|
||||
"interrupt base %lu\n", (uint32)info->Address,
|
||||
(uint32)info->GlobalIrqBase);
|
||||
dprintf("found io-apic with address 0x%08lx, global "
|
||||
"interrupt base %lu, apic-id %u\n", (uint32)info->Address,
|
||||
(uint32)info->GlobalIrqBase, info->Id);
|
||||
|
||||
struct ioapic* alreadyMapped
|
||||
= find_ioapic((int32)info->GlobalIrqBase);
|
||||
if (alreadyMapped != NULL) {
|
||||
// we've already mapped this IO-APIC (at boot)
|
||||
dprintf("io-apic %u, already mapped at %p, range %u-%u, "
|
||||
"%u entries, version 0x%08lx, apic-id %lu\n",
|
||||
alreadyMapped->number,
|
||||
alreadyMapped->registers,
|
||||
alreadyMapped->global_interrupt_base,
|
||||
alreadyMapped->global_interrupt_last,
|
||||
alreadyMapped->max_redirection_entry + 1,
|
||||
ioapic_read_32(*alreadyMapped, IO_APIC_VERSION),
|
||||
(ioapic_read_32(*alreadyMapped, IO_APIC_ID)
|
||||
>> IO_APIC_ID_SHIFT) & IO_APIC_ID_MASK);
|
||||
// We've already mapped this IO-APIC (at boot), but we
|
||||
// need to fill in the APIC ID. TODO: We might not
|
||||
// actually get the IO-APIC with base 0 as first entry!
|
||||
alreadyMapped->apic_id = info->Id;
|
||||
alreadyMapped->global_interrupt_base = info->GlobalIrqBase;
|
||||
alreadyMapped->global_interrupt_last = info->GlobalIrqBase
|
||||
+ alreadyMapped->max_redirection_entry;
|
||||
print_ioapic(*alreadyMapped);
|
||||
break;
|
||||
}
|
||||
|
||||
@ -403,6 +407,7 @@ acpi_enumerate_ioapics(acpi_module_info* acpi)
|
||||
}
|
||||
|
||||
ioapic->number = lastIOAPIC->number + 1;
|
||||
ioapic->apic_id = info->Id;
|
||||
ioapic->global_interrupt_base = info->GlobalIrqBase;
|
||||
ioapic->registers = NULL;
|
||||
ioapic->next = NULL;
|
||||
@ -410,12 +415,14 @@ acpi_enumerate_ioapics(acpi_module_info* acpi)
|
||||
dprintf("mapping io-apic %u at physical address %p\n",
|
||||
ioapic->number, (void*)info->Address);
|
||||
status_t status = ioapic_map_ioapic(*ioapic, info->Address);
|
||||
if (status == B_OK) {
|
||||
if (status != B_OK) {
|
||||
free(ioapic);
|
||||
break;
|
||||
}
|
||||
|
||||
print_ioapic(*ioapic);
|
||||
lastIOAPIC->next = ioapic;
|
||||
lastIOAPIC = ioapic;
|
||||
} else
|
||||
free(ioapic);
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
@ -548,7 +555,7 @@ ioapic_init(kernel_args* args)
|
||||
print_irq_routing_table(table);
|
||||
|
||||
// use the boot CPU as the target for all interrupts
|
||||
uint64 targetAPIC = args->arch_args.cpu_apic_id[0];
|
||||
uint8 targetAPIC = args->arch_args.cpu_apic_id[0];
|
||||
|
||||
struct ioapic* current = &sIOAPICs;
|
||||
while (current != NULL) {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user