midou/citra-shitamoto-network
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

HLE/GSP: Only trigger GSP interrupts for the current active GSP thread.

Browse Source 
This is true for all interrupts except PDC0 and PDC1, which should be triggered for all registered threads.

TODO: The real GSP module seems to only trigger PDC0 after updating the screens (both top and bottom). PDC1 doesn't seem to be triggered at all.
This commit is contained in:
Subv 2017-12-21 11:55:44 -05:00
parent 05a44ed353
commit 68fc3b36e6
1 changed files with 19 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
src/core/hle/service/gsp/gsp_gpu.cpp
View File

@ -50,6 +50,9 @@ constexpr ResultCode ERR_REGS_INVALID_SIZE(ErrorDescription::InvalidSize, ErrorM
ErrorSummary::InvalidArgument,
ErrorLevel::Usage); // 0xE0E02BEC
/// Maximum number of threads that can be registered at the same time in the GSP module.
constexpr u32 MaxGSPThreads = 4;
/// Gets a pointer to a thread command buffer in GSP shared memory
static inline u8* GetCommandBuffer(Kernel::SharedPtr<Kernel::SharedMemory> shared_memory,
u32 thread_id) {
@ -325,6 +328,7 @@ void GSP_GPU::RegisterInterruptRelayQueue(Kernel::HLERequestContext& ctx) {
interrupt_event->name = "GSP_GSP_GPU::interrupt_event";
u32 thread_id = next_thread_id++;
ASSERT_MSG(thread_id < MaxGSPThreads, "GSP thread id overflow");
SessionData* session_data = GetSessionData(ctx.Session());
session_data->thread_id = thread_id;
@ -370,11 +374,23 @@ 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;
}
for (int thread_id = 0; thread_id < 0x4; ++thread_id) {
// 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;
}
SessionData* session_data = FindRegisteredThreadData(thread_id);
if (session_data == nullptr)
continue;
@ -398,6 +414,8 @@ void GSP_GPU::SignalInterrupt(InterruptId interrupt_id) {
// 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) {