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Working towards making Interrupt support more generic/less NV2A specific

This commit is contained in:
Luke Usher 2017-08-09 21:19:26 +01:00 committed by PatrickvL
parent 147b293c8c
commit a1048d0042
1 changed files with 14 additions and 33 deletions
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47
src/CxbxKrnl/EmuNV2A.cpp
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@ -490,8 +490,6 @@ struct {
uint32_t regs[NV_PGRAPH_SIZE / sizeof(uint32_t)]; // TODO : union
} pgraph;
bool interruptsUpdated = false;
static void update_irq()
{
/* PFIFO */
@ -531,7 +529,13 @@ static void update_irq()
pmc.pending_interrupts &= ~NV_PMC_INTR_0_SOFTWARE;
} */
interruptsUpdated = true;
if (pmc.pending_interrupts && pmc.enabled_interrupts) {
HalSystemInterrupts[3].Assert(true);
} else {
HalSystemInterrupts[3].Assert(false);
}
SwitchToThread();
}
@ -2652,6 +2656,7 @@ static void nv2a_vblank_thread()
}
}
// TODO: Move this into the kernel
static unsigned int WINAPI EmuNV2A_InterruptThread(PVOID param)
{
EmuGenerateFS(CxbxKrnl_TLS, CxbxKrnl_TLSData);
@ -2660,38 +2665,14 @@ static unsigned int WINAPI EmuNV2A_InterruptThread(PVOID param)
_controlfp(_RC_NEAR, _MCW_RC); // Set Rounding control to near (unsure about this)
while (true) {
__try {
// If interrupts need processing, service the NV2A interrupt
// TODO: Move this into the kernel/make this generic, not NV2A specific
// An interrupt thread should exist in the kernel which iterates through
// EmuInterruptList and calls and pending interrupts!
// Note: This is implemented here as currently only NV2A generates
// interrupts, and we have no mechanism for telling the kernel an
// interrupt needs to be fired!
if (interruptsUpdated) {
interruptsUpdated = false;
if (pmc.pending_interrupts && pmc.enabled_interrupts) {
// If GPU Interrupt is connected, call the interrupt service routine
if (EmuInterruptList[3]->Connected) {
// Get a function pointer to the service routine
BOOLEAN(__stdcall *ServiceRoutine)(xboxkrnl::PKINTERRUPT, void*) = (BOOLEAN(__stdcall *)(xboxkrnl::PKINTERRUPT, void*))EmuInterruptList[3]->ServiceRoutine;
// Call the routine, passing the service context and interrupt object
BOOLEAN result = ServiceRoutine(EmuInterruptList[3], EmuInterruptList[3]->ServiceContext);
// TODO: What is the result for?
}
}
else {
// TODO: Cancel IRQ
// EmuWarning("NV2A update_irq() : Cancel IRQ Not Implemented");
}
for (int i = 0; i < MAX_BUS_INTERRUPT_LEVEL; i++) {
// If the interrupt is pending, pending and connected, process it
if (HalSystemInterrupts[i].IsPending() && EmuInterruptList[i]->Connected) {
HalSystemInterrupts[i].Trigger(EmuInterruptList[i]);
}
}
SwitchToThread();
}
__except (EmuException(GetExceptionInformation()))
{
EmuWarning("Problem with ExceptionFilter!");
}
SwitchToThread();
}
return 0;