void IOInterruptController::timeStampInterruptHandlerInternal(bool isStart, IOInterruptVectorNumber vectorNumber, IOInterruptVector *vector)
{
uint64_t providerID = 0;
vm_offset_t unslidHandler = 0;
vm_offset_t unslidTarget = 0;
IOService * provider = getProvider();
if (provider) {
providerID = provider->getRegistryEntryID();
}
if (vector) {
unslidHandler = VM_KERNEL_UNSLIDE((vm_offset_t)vector->handler);
unslidTarget = VM_KERNEL_UNSLIDE_OR_PERM((vm_offset_t)vector->target);
}
if (isStart) {
IOTimeStampStartConstant(IODBG_INTC(IOINTC_HANDLER), (uintptr_t)vectorNumber, (uintptr_t)unslidHandler,
(uintptr_t)unslidTarget, (uintptr_t)providerID);
} else {
IOTimeStampEndConstant(IODBG_INTC(IOINTC_HANDLER), (uintptr_t)vectorNumber, (uintptr_t)unslidHandler,
(uintptr_t)unslidTarget, (uintptr_t)providerID);
}
}
IOReturn IOSharedInterruptController::handleInterrupt(void * /*refCon*/,
IOService * nub,
int /*source*/)
{
IOInterruptVectorNumber vectorNumber;
IOInterruptVector *vector;
for (vectorNumber = 0; vectorNumber < numVectors; vectorNumber++) {
vector = &vectors[vectorNumber];
vector->interruptActive = 1;
if (!vector->interruptDisabledSoft) {
// Call the handler if it exists.
if (vector->interruptRegistered) {
bool trace = (gIOKitTrace & kIOTraceInterrupts) ? true : false;
if (trace)
IOTimeStampStartConstant(IODBG_INTC(IOINTC_HANDLER),
(uintptr_t) vectorNumber, (uintptr_t) vector->handler, (uintptr_t)vector->target);
// Call handler.
vector->handler(vector->target, vector->refCon, vector->nub, vector->source);
if (trace)
IOTimeStampEndConstant(IODBG_INTC(IOINTC_HANDLER),
(uintptr_t) vectorNumber, (uintptr_t) vector->handler, (uintptr_t)vector->target);
}
}
vector->interruptActive = 0;
}
// if any of the vectors are dissabled, then dissable this controller.
IOSimpleLockLock(controllerLock);
if (vectorsEnabled != vectorsRegistered) {
nub->disableInterrupt(0);
controllerDisabled = 1;
}
IOSimpleLockUnlock(controllerLock);
return kIOReturnSuccess;
}
void IOInterruptController::timeStampSpuriousInterrupt(void)
{
uint64_t providerID = 0;
IOService * provider = getProvider();
if (provider) {
providerID = provider->getRegistryEntryID();
}
IOTimeStampConstant(IODBG_INTC(IOINTC_SPURIOUS), providerID);
}