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Code Issues Releases Activity

core: Run all CPU cores separately, even in single-thread mode.

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This commit is contained in:
bunnei 2018-05-07 22:57:39 -04:00
parent fbd7afefaa
commit edc52250b8
2 changed files with 23 additions and 13 deletions
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26
src/core/core.cpp
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@ -34,6 +34,19 @@ static void RunCpuCore(std::shared_ptr<Cpu> cpu_state) {
}
}
Cpu& System::CurrentCpuCore() {
// If multicore is enabled, use host thread to figure out the current CPU core
if (Settings::values.use_multi_core) {
const auto& search = thread_to_cpu.find(std::this_thread::get_id());
ASSERT(search != thread_to_cpu.end());
ASSERT(search->second);
return *search->second;
}
// Otherwise, use single-threaded mode active_core variable
return *cpu_cores[active_core];
}
System::ResultStatus System::RunLoop(bool tight_loop) {
status = ResultStatus::Success;
@ -55,7 +68,13 @@ System::ResultStatus System::RunLoop(bool tight_loop) {
}
}
cpu_cores[0]->RunLoop(tight_loop);
for (active_core = 0; active_core < NUM_CPU_CORES; ++active_core) {
cpu_cores[active_core]->RunLoop(tight_loop);
if (Settings::values.use_multi_core) {
// Cores 1-3 are run on other threads in this mode
break;
}
}
return status;
}
@ -127,11 +146,6 @@ PerfStats::Results System::GetAndResetPerfStats() {
}
const std::shared_ptr<Kernel::Scheduler>& System::Scheduler(size_t core_index) {
if (!Settings::values.use_multi_core) {
// Always use Core 0 scheduler when multicore is disabled
return cpu_cores[0]->Scheduler();
}
ASSERT(core_index < NUM_CPU_CORES);
return cpu_cores[core_index]->Scheduler();
}

10
src/core/core.h
View file

@ -160,13 +160,8 @@ public:
}
private:
/// Returns the current CPU core based on the calling host thread
Cpu& CurrentCpuCore() {
const auto& search = thread_to_cpu.find(std::this_thread::get_id());
ASSERT(search != thread_to_cpu.end());
ASSERT(search->second);
return *search->second;
}
/// Returns the currently running CPU core
Cpu& CurrentCpuCore();
/**
* Initialize the emulated system.
@ -184,6 +179,7 @@ private:
std::shared_ptr<CpuBarrier> cpu_barrier;
std::array<std::shared_ptr<Cpu>, NUM_CPU_CORES> cpu_cores;
std::array<std::unique_ptr<std::thread>, NUM_CPU_CORES - 1> cpu_core_threads;
size_t active_core{}; ///< Active core, only used in single thread mode
/// Service manager
std::shared_ptr<Service::SM::ServiceManager> service_manager;