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X86: Tell the function that sends int messages who to send to instead of figuring it out itself.

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This commit is contained in:
Gabe Black
2009-04-26 02:09:27 -07:00
parent 88ab4bb257
commit 2f34a7eaeb
4 changed files with 84 additions and 56 deletions
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51
src/arch/x86/interrupts.cc
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@@ -510,11 +510,41 @@ X86ISA::Interrupts::setReg(ApicRegIndex reg, uint32_t val)
bool timing = sys->getMemoryMode() == Enums::timing;
// Be careful no updates of the delivery status bit get lost.
regs[APIC_INTERRUPT_COMMAND_LOW] = low;
ApicList apics;
int numContexts = sys->numContexts();
switch (low.destShorthand) {
case 0:
pendingIPIs++;
intPort->sendMessage(message, timing);
newVal = regs[APIC_INTERRUPT_COMMAND_LOW];
if (message.deliveryMode == DeliveryMode::LowestPriority) {
panic("Lowest priority delivery mode "
"IPIs aren't implemented.\n");
}
if (message.destMode == 1) {
int dest = message.destination;
hack_once("Assuming logical destinations are 1 << id.\n");
for (int i = 0; i < numContexts; i++) {
if (dest & 0x1)
apics.push_back(i);
dest = dest >> 1;
}
} else {
if (message.destination == 0xFF) {
for (int i = 0; i < numContexts; i++) {
if (i == initialApicId) {
requestInterrupt(message.vector,
message.deliveryMode, message.trigger);
} else {
apics.push_back(i);
}
}
} else {
if (message.destination == initialApicId) {
requestInterrupt(message.vector,
message.deliveryMode, message.trigger);
} else {
apics.push_back(message.destination);
}
}
}
break;
case 1:
newVal = val;
@@ -527,22 +557,17 @@ X86ISA::Interrupts::setReg(ApicRegIndex reg, uint32_t val)
// Fall through
case 3:
{
int numContexts = sys->numContexts();
pendingIPIs += (numContexts - 1);
for (int i = 0; i < numContexts; i++) {
int thisId = sys->getThreadContext(i)->contextId();
if (thisId != initialApicId) {
PacketPtr pkt = buildIntRequest(thisId, message);
if (timing)
intPort->sendMessageTiming(pkt, latency);
else
intPort->sendMessageAtomic(pkt);
if (i != initialApicId) {
apics.push_back(i);
}
}
}
newVal = regs[APIC_INTERRUPT_COMMAND_LOW];
break;
}
pendingIPIs += apics.size();
intPort->sendMessage(apics, message, timing);
newVal = regs[APIC_INTERRUPT_COMMAND_LOW];
}
break;
case APIC_LVT_TIMER: