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GSP: Allow the signaling of the PDC0/1 interrupts even if the GPU right hasn't been acquired. 

This was verified with a hwtest.
This commit is contained in:
Subv 2018-01-06 13:51:33 -05:00
parent aa90198ec5
commit 34685f48dc
2 changed files with 56 additions and 44 deletions
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92
src/core/hle/service/gsp/gsp_gpu.cpp
View File

@ -371,6 +371,43 @@ void GSP_GPU::UnregisterInterruptRelayQueue(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_GSP, "called");
}
void GSP_GPU::SignalInterruptForThread(InterruptId interrupt_id, u32 thread_id) {
SessionData* session_data = FindRegisteredThreadData(thread_id);
if (session_data == nullptr)
return;
auto interrupt_event = session_data->interrupt_event;
if (interrupt_event == nullptr) {
LOG_WARNING(Service_GSP, "cannot synchronize until GSP event has been created!");
return;
}
InterruptRelayQueue* interrupt_relay_queue = GetInterruptRelayQueue(shared_memory, thread_id);
u8 next = interrupt_relay_queue->index;
next += interrupt_relay_queue->number_interrupts;
next = next % 0x34; // 0x34 is the number of interrupt slots
interrupt_relay_queue->number_interrupts += 1;
interrupt_relay_queue->slot[next] = interrupt_id;
interrupt_relay_queue->error_code = 0x0; // No error
// Update framebuffer information if requested
// TODO(yuriks): Confirm where this code should be called. It is definitely updated without
// executing any GSP commands, only waiting on the event.
// TODO(Subv): The real GSP module triggers PDC0 after updating both the top and bottom
// screen, it is currently unknown what PDC1 does.
int screen_id =
(interrupt_id == InterruptId::PDC0) ? 0 : (interrupt_id == InterruptId::PDC1) ? 1 : -1;
if (screen_id != -1) {
FrameBufferUpdate* info = GetFrameBufferInfo(thread_id, screen_id);
if (info->is_dirty) {
GSP::SetBufferSwap(screen_id, info->framebuffer_info[info->index]);
info->is_dirty.Assign(false);
}
}
interrupt_event->Signal();
}
/**
* Signals that the specified interrupt type has occurred to userland code
* @param interrupt_id ID of interrupt that is being signalled
@ -378,59 +415,26 @@ void GSP_GPU::UnregisterInterruptRelayQueue(Kernel::HLERequestContext& ctx) {
* @todo This probably does not belong in the GSP module, instead move to video_core
*/
void GSP_GPU::SignalInterrupt(InterruptId interrupt_id) {
// Don't do anything if no process has acquired the GPU right.
if (active_thread_id == -1)
return;
if (nullptr == shared_memory) {
LOG_WARNING(Service_GSP, "cannot synchronize until GSP shared memory has been created!");
return;
}
// The PDC0 and PDC1 interrupts are fired even if the GPU right hasn't been acquired.
// Normal interrupts are only signaled for the active thread (ie, the thread that has the GPU
// right), but the PDC0/1 interrupts are signaled for every registered thread.
for (int thread_id = 0; thread_id < MaxGSPThreads; ++thread_id) {
if (interrupt_id != InterruptId::PDC0 && interrupt_id != InterruptId::PDC1) {
// Ignore threads that aren't the current active thread
if (thread_id != active_thread_id)
continue;
if (interrupt_id == InterruptId::PDC0 || interrupt_id == InterruptId::PDC1) {
for (u32 thread_id = 0; thread_id < MaxGSPThreads; ++thread_id) {
SignalInterruptForThread(interrupt_id, thread_id);
}
SessionData* session_data = FindRegisteredThreadData(thread_id);
if (session_data == nullptr)
continue;
auto interrupt_event = session_data->interrupt_event;
if (interrupt_event == nullptr) {
LOG_WARNING(Service_GSP, "cannot synchronize until GSP event has been created!");
continue;
}
InterruptRelayQueue* interrupt_relay_queue =
GetInterruptRelayQueue(shared_memory, thread_id);
u8 next = interrupt_relay_queue->index;
next += interrupt_relay_queue->number_interrupts;
next = next % 0x34; // 0x34 is the number of interrupt slots
interrupt_relay_queue->number_interrupts += 1;
interrupt_relay_queue->slot[next] = interrupt_id;
interrupt_relay_queue->error_code = 0x0; // No error
// Update framebuffer information if requested
// TODO(yuriks): Confirm where this code should be called. It is definitely updated without
// executing any GSP commands, only waiting on the event.
// TODO(Subv): The real GSP module triggers PDC0 after updating both the top and bottom
// screen, it is currently unknown what PDC1 does.
int screen_id =
(interrupt_id == InterruptId::PDC0) ? 0 : (interrupt_id == InterruptId::PDC1) ? 1 : -1;
if (screen_id != -1) {
FrameBufferUpdate* info = GetFrameBufferInfo(thread_id, screen_id);
if (info->is_dirty) {
GSP::SetBufferSwap(screen_id, info->framebuffer_info[info->index]);
info->is_dirty.Assign(false);
}
}
interrupt_event->Signal();
return;
}
// For normal interrupts, don't do anything if no process has acquired the GPU right.
if (active_thread_id == -1)
return;
SignalInterruptForThread(interrupt_id, active_thread_id);
}
MICROPROFILE_DEFINE(GPU_GSP_DMA, "GPU", "GSP DMA", MP_RGB(100, 0, 255));

8
src/core/hle/service/gsp/gsp_gpu.h
View File

@ -213,6 +213,14 @@ public:
FrameBufferUpdate* GetFrameBufferInfo(u32 thread_id, u32 screen_index);
private:
/**
* Signals that the specified interrupt type has occurred to userland code for the specified GSP
* thread id.
* @param interrupt_id ID of interrupt that is being signalled.
* @param thread_id GSP thread that will receive the interrupt.
*/
void SignalInterruptForThread(InterruptId interrupt_id, u32 thread_id);
/**
* GSP_GPU::WriteHWRegs service function
*