70 lines
2.0 KiB
D
70 lines
2.0 KiB
D
/**
|
|
* APIC (Advanced Programmable Interrupt Controller) functionality.
|
|
*/
|
|
module hulk.apic;
|
|
|
|
import hulk.klog;
|
|
import hulk.hurl;
|
|
import hulk.acpi;
|
|
|
|
struct apic
|
|
{
|
|
static struct ApicRegister
|
|
{
|
|
private uint register;
|
|
private ubyte[12] _padding;
|
|
|
|
public uint read() const
|
|
{
|
|
return register;
|
|
}
|
|
|
|
public void write(uint value)
|
|
{
|
|
register = value;
|
|
}
|
|
};
|
|
|
|
static struct ApicRegisters
|
|
{
|
|
ApicRegister[2] _reserved0;
|
|
ApicRegister lapic_id;
|
|
ApicRegister lapic_version;
|
|
ApicRegister[4] _reserved1;
|
|
ApicRegister task_priority;
|
|
ApicRegister arbitration_priority;
|
|
ApicRegister processor_priority;
|
|
ApicRegister eoi;
|
|
ApicRegister remote_read;
|
|
ApicRegister logical_destination;
|
|
ApicRegister destination_format;
|
|
ApicRegister spurious_interrupt_vector;
|
|
ApicRegister[8] in_service;
|
|
ApicRegister[8] trigger_mode;
|
|
ApicRegister[8] interrupt_request;
|
|
ApicRegister error_status;
|
|
ApicRegister[6] _reserved2;
|
|
ApicRegister lvt_cmci;
|
|
ApicRegister[2] interrupt_command;
|
|
ApicRegister lvt_timer;
|
|
ApicRegister lvt_thermal_sensor;
|
|
ApicRegister lvt_performance_monitoring_counters;
|
|
ApicRegister[2] lvt_lint;
|
|
ApicRegister lvt_error;
|
|
ApicRegister initial_count;
|
|
ApicRegister current_count;
|
|
ApicRegister[4] _reserved3;
|
|
ApicRegister divide_configuration;
|
|
};
|
|
|
|
public static void initialize()
|
|
{
|
|
ApicRegisters * apic_registers =
|
|
cast(ApicRegisters *)acpi.apic_address;
|
|
hurl.map(cast(ulong)apic_registers, cast(ulong)apic_registers,
|
|
PT_WRITABLE | PT_WRITE_THROUGH | PT_DISABLE_CACHE | PT_NO_EXECUTE);
|
|
klog.writefln("LAPIC ID: 0x%08x", apic_registers.lapic_id.read());
|
|
klog.writefln("LAPIC version: 0x%08x", apic_registers.lapic_version.read());
|
|
}
|
|
}
|