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kern: implement lightlock slowpath (works on hw)

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This commit is contained in:
Michael Scire 2020-02-14 15:27:34 -08:00
parent b3e6571586
commit 11f70759ce
7 changed files with 258 additions and 5 deletions
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27
libraries/libmesosphere/include/mesosphere/kern_k_thread.hpp
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@ -264,7 +264,12 @@ namespace ams::kern {
}
private:
void Suspend();
ALWAYS_INLINE void AddWaiterImpl(KThread *thread);
ALWAYS_INLINE void RemoveWaiterImpl(KThread *thread);
ALWAYS_INLINE static void RestorePriority(KThread *thread);
public:
constexpr u64 GetId() const { return this->thread_id; }
constexpr KThreadContext *GetContext() { return std::addressof(this->thread_context); }
constexpr const KThreadContext *GetContext() const { return std::addressof(this->thread_context); }
constexpr const KAffinityMask &GetAffinityMask() const { return this->affinity_mask; }
@ -277,6 +282,8 @@ namespace ams::kern {
constexpr s32 GetActiveCore() const { return this->core_id; }
constexpr void SetActiveCore(s32 core) { this->core_id = core; }
constexpr s32 GetPriority() const { return this->priority; }
constexpr void SetPriority(s32 prio) { this->priority = prio; }
constexpr s32 GetBasePriority() const { return this->base_priority; }
constexpr QueueEntry &GetPriorityQueueEntry(s32 core) { return this->per_core_priority_queue_entry[core]; }
constexpr const QueueEntry &GetPriorityQueueEntry(s32 core) const { return this->per_core_priority_queue_entry[core]; }
@ -285,8 +292,21 @@ namespace ams::kern {
constexpr const QueueEntry &GetSleepingQueueEntry() const { return this->sleeping_queue_entry; }
constexpr void SetSleepingQueue(KThreadQueue *q) { this->sleeping_queue = q; }
constexpr void /* TODO */ *GetConditionVariable() const { return this->cond_var_tree; }
constexpr s32 GetNumKernelWaiters() const { return this->num_kernel_waiters; }
void AddWaiter(KThread *thread);
void RemoveWaiter(KThread *thread);
KThread *RemoveWaiterByKey(s32 *out_num_waiters, KProcessAddress key);
constexpr KProcessAddress GetAddressKey() const { return this->arbiter_key; }
constexpr void SetAddressKey(KProcessAddress key) { this->arbiter_key = key; }
constexpr void SetLockOwner(KThread *owner) { this->lock_owner = owner; }
constexpr KThread *GetLockOwner() const { return this->lock_owner; }
bool HasWaiters() const { return !this->waiter_list.empty(); }
constexpr s64 GetLastScheduledTick() const { return this->last_scheduled_tick; }
constexpr void SetLastScheduledTick(s64 tick) { this->last_scheduled_tick = tick; }
@ -307,6 +327,13 @@ namespace ams::kern {
constexpr bool IsSuspended() const { return this->GetSuspendFlags() != 0; }
void RequestSuspend(SuspendType type);
void TrySuspend();
void Continue();
void ContinueIfHasKernelWaiters() {
if (this->GetNumKernelWaiters() > 0) {
this->Continue();
}
}
Result SetPriorityToIdle();