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// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <mutex>
#include "common/assert.h"
#include "core/core.h"
#include "core/hle/kernel/global_scheduler_context.h"
#include "core/hle/kernel/k_scheduler.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/physical_core.h"
namespace Kernel {
GlobalSchedulerContext::GlobalSchedulerContext(KernelCore& kernel_)
: kernel{kernel_}, scheduler_lock{kernel_} {}
GlobalSchedulerContext::~GlobalSchedulerContext() = default;
void GlobalSchedulerContext::AddThread(KThread* thread) {
std::scoped_lock lock{global_list_guard};
thread_list.push_back(thread);
}
void GlobalSchedulerContext::RemoveThread(KThread* thread) {
std::scoped_lock lock{global_list_guard};
thread_list.erase(std::remove(thread_list.begin(), thread_list.end(), thread),
thread_list.end());
}
void GlobalSchedulerContext::PreemptThreads() {
// The priority levels at which the global scheduler preempts threads every 10 ms. They are
// ordered from Core 0 to Core 3.
static constexpr std::array<u32, Core::Hardware::NUM_CPU_CORES> preemption_priorities{
59,
59,
59,
63,
};
ASSERT(IsLocked());
for (u32 core_id = 0; core_id < Core::Hardware::NUM_CPU_CORES; core_id++) {
const u32 priority = preemption_priorities[core_id];
KScheduler::RotateScheduledQueue(kernel, core_id, priority);
}
}
bool GlobalSchedulerContext::IsLocked() const {
return scheduler_lock.IsLockedByCurrentThread();
}
void GlobalSchedulerContext::RegisterDummyThreadForWakeup(KThread* thread) {
ASSERT(IsLocked());
woken_dummy_threads.insert(thread);
}
void GlobalSchedulerContext::UnregisterDummyThreadForWakeup(KThread* thread) {
ASSERT(IsLocked());
woken_dummy_threads.erase(thread);
}
void GlobalSchedulerContext::WakeupWaitingDummyThreads() {
ASSERT(IsLocked());
for (auto* thread : woken_dummy_threads) {
thread->DummyThreadEndWait();
}
woken_dummy_threads.clear();
}
} // namespace Kernel
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