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hle: kernel: Recode implementation of KThread to be more accurate.

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This commit is contained in:
bunnei
2021-01-20 13:42:27 -08:00
parent 1470338458
commit cdd14b03e5
14 changed files with 1583 additions and 806 deletions
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24
src/core/hle/kernel/k_scheduler.h
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@ -33,15 +33,14 @@ class KThread;
class KScheduler final {
public:
explicit KScheduler(Core::System& system, std::size_t core_id);
explicit KScheduler(Core::System& system, s32 core_id);
~KScheduler();
/// Reschedules to the next available thread (call after current thread is suspended)
void RescheduleCurrentCore();
/// Reschedules cores pending reschedule, to be called on EnableScheduling.
static void RescheduleCores(KernelCore& kernel, u64 cores_pending_reschedule,
Core::EmuThreadHandle global_thread);
static void RescheduleCores(KernelCore& kernel, u64 cores_pending_reschedule);
/// The next two are for SingleCore Only.
/// Unload current thread before preempting core.
@ -53,6 +52,11 @@ public:
/// Gets the current running thread
[[nodiscard]] KThread* GetCurrentThread() const;
/// Returns true if the scheduler is idle
[[nodiscard]] bool IsIdle() const {
return GetCurrentThread() == idle_thread;
}
/// Gets the timestamp for the last context switch in ticks.
[[nodiscard]] u64 GetLastContextSwitchTicks() const;
@ -79,7 +83,7 @@ public:
*
* @note This operation can be redundant and no scheduling is changed if marked as so.
*/
void YieldWithoutCoreMigration();
static void YieldWithoutCoreMigration(KernelCore& kernel);
/**
* Takes a thread and moves it to the back of the it's priority list.
@ -88,7 +92,7 @@ public:
*
* @note This operation can be redundant and no scheduling is changed if marked as so.
*/
void YieldWithCoreMigration();
static void YieldWithCoreMigration(KernelCore& kernel);
/**
* Takes a thread and moves it out of the scheduling queue.
@ -97,7 +101,9 @@ public:
*
* @note This operation can be redundant and no scheduling is changed if marked as so.
*/
void YieldToAnyThread();
static void YieldToAnyThread(KernelCore& kernel);
static void ClearPreviousThread(KernelCore& kernel, KThread* thread);
/// Notify the scheduler a thread's status has changed.
static void OnThreadStateChanged(KernelCore& kernel, KThread* thread, ThreadState old_state);
@ -114,8 +120,7 @@ public:
static void SetSchedulerUpdateNeeded(KernelCore& kernel);
static void ClearSchedulerUpdateNeeded(KernelCore& kernel);
static void DisableScheduling(KernelCore& kernel);
static void EnableScheduling(KernelCore& kernel, u64 cores_needing_scheduling,
Core::EmuThreadHandle global_thread);
static void EnableScheduling(KernelCore& kernel, u64 cores_needing_scheduling);
[[nodiscard]] static u64 UpdateHighestPriorityThreads(KernelCore& kernel);
private:
@ -168,6 +173,7 @@ private:
static void OnSwitch(void* this_scheduler);
void SwitchToCurrent();
KThread* prev_thread{};
KThread* current_thread{};
KThread* idle_thread{};
@ -186,7 +192,7 @@ private:
Core::System& system;
u64 last_context_switch_time{};
const std::size_t core_id;
const s32 core_id;
Common::SpinLock guard{};
};