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core: Create a thread for each CPU core, keep in lock-step with a barrier.

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This commit is contained in:
bunnei 2018-05-02 21:26:14 -04:00
parent 5590245930
commit 9776ff9179
4 changed files with 94 additions and 18 deletions
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25
src/core/core_cpu.cpp
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@ -2,6 +2,9 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <condition_variable>
#include <mutex>
#include "common/logging/log.h"
#ifdef ARCHITECTURE_x86_64
#include "core/arm/dynarmic/arm_dynarmic.h"
@ -16,7 +19,9 @@
namespace Core {
Cpu::Cpu() {
Cpu::Cpu(std::shared_ptr<CpuBarrier> cpu_barrier, size_t core_index)
: cpu_barrier{std::move(cpu_barrier)}, core_index{core_index} {
if (Settings::values.use_cpu_jit) {
#ifdef ARCHITECTURE_x86_64
arm_interface = std::make_shared<ARM_Dynarmic>();
@ -32,15 +37,25 @@ Cpu::Cpu() {
}
void Cpu::RunLoop(bool tight_loop) {
// Wait for all other CPU cores to complete the previous slice, such that they run in lock-step
cpu_barrier->Rendezvous();
// If we don't have a currently active thread then don't execute instructions,
// instead advance to the next event and try to yield to the next thread
if (Kernel::GetCurrentThread() == nullptr) {
NGLOG_TRACE(Core, "Idling");
CoreTiming::Idle();
CoreTiming::Advance();
NGLOG_TRACE(Core, "Core-{} idling", core_index);
if (IsMainCore()) {
CoreTiming::Idle();
CoreTiming::Advance();
}
PrepareReschedule();
} else {
CoreTiming::Advance();
if (IsMainCore()) {
CoreTiming::Advance();
}
if (tight_loop) {
arm_interface->Run();
} else {