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We need to specify the intended interrupt model with ACPI so that we get the

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correct PCI IRQ routing table for that mode. With this, we finally get the right
PIRQ <-> Global System Interrupt mapping and can therefore program the right
IO APIC entries. The only missing part now is to fix up the pci_info of the
devices with the then active GSI.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41338 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Michael Lotz 2011-05-06 01:55:58 +00:00
parent fa0af37702
commit 1882d05b95
1 changed files with 35 additions and 2 deletions
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37
src/system/kernel/arch/x86/arch_int.cpp
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@ -83,6 +83,12 @@
#define PIC_NUM_INTS 0x0f
// ACPI interrupt models
#define ACPI_INTERRUPT_MODEL_PIC 0
#define ACPI_INTERRUPT_MODEL_APIC 1
#define ACPI_INTERRUPT_MODEL_SAPIC 2
// Definitions for a 82093AA IO APIC controller
#define IO_APIC_IDENTIFICATION 0x00
#define IO_APIC_VERSION 0x01
@ -571,6 +577,21 @@ ioapic_map(kernel_args* args)
}
static status_t
acpi_set_interrupt_model(acpi_module_info* acpiModule, uint32 interruptModel)
{
acpi_object_type model;
model.object_type = ACPI_TYPE_INTEGER;
model.data.integer = interruptModel;
acpi_objects parameter;
parameter.count = 1;
parameter.pointer = &model;
return acpiModule->evaluate_method(NULL, "\\_PIC", &parameter, NULL);
}
static void
ioapic_init(kernel_args* args)
{
@ -609,13 +630,21 @@ ioapic_init(kernel_args* args)
BPrivate::CObjectDeleter<const char, status_t>
acpiModulePutter(B_ACPI_MODULE_NAME, put_module);
// TODO: here ACPI needs to be used to properly set up the PCI IRQ
// routing.
// switch to the APIC interrupt model before retrieving the irq routing
// table as it will return different settings depending on the model
status = acpi_set_interrupt_model(acpiModule, ACPI_INTERRUPT_MODEL_APIC);
if (status != B_OK) {
dprintf("failed to put ACPI into APIC interrupt model, ignoring\n");
// don't abort, as the _PIC method is optional and as long as there
// aren't different routings based on it this is non-fatal
}
IRQRoutingTable table;
status = read_irq_routing_table(acpiModule, &table);
if (status != B_OK) {
dprintf("reading IRQ routing table failed, not configuring ioapic.\n");
acpi_set_interrupt_model(acpiModule, ACPI_INTERRUPT_MODEL_PIC);
// revert to PIC interrupt model just in case
return;
}
@ -663,6 +692,10 @@ ioapic_init(kernel_args* args)
for (uint32 i = 0; i < 256; i++)
sIRQToIOAPICPin[i] = i;
#ifdef TRACE_ARCH_INT
print_irq_routing_table(&table);
#endif
// configure io apic interrupts from pci routing table
for (int i = 0; i < table.Count(); i++) {
uint8 irq = 0;