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Kernel: Correct behavior of Address Arbiter threads. (#3165)

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* Kernel: Correct behavior of Address Arbiter threads.

This corrects arbitration threads to behave just like in Horizon OS.
They are added into a container and released according to what priority
they had when added. Horizon OS does not reorder them if their priority
changes.

* Kernel: Address Feedback.
This commit is contained in:
Fernando Sahmkow
2019-12-11 11:55:38 -04:00
committed by bunnei
parent 34f8881d3e
commit 22c6b9fab2
3 changed files with 67 additions and 24 deletions
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19
src/core/hle/kernel/address_arbiter.h
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@@ -4,7 +4,9 @@
#pragma once
#include <list>
#include <memory>
#include <unordered_map>
#include <vector>
#include "common/common_types.h"
@@ -48,6 +50,9 @@ public:
/// Waits on an address with a particular arbitration type.
ResultCode WaitForAddress(VAddr address, ArbitrationType type, s32 value, s64 timeout_ns);
/// Removes a thread from the container and resets its address arbiter adress to 0
void HandleWakeupThread(std::shared_ptr<Thread> thread);
private:
/// Signals an address being waited on.
ResultCode SignalToAddressOnly(VAddr address, s32 num_to_wake);
@@ -71,8 +76,20 @@ private:
// Waits on the given address with a timeout in nanoseconds
ResultCode WaitForAddressImpl(VAddr address, s64 timeout);
/// Wake up num_to_wake (or all) threads in a vector.
void WakeThreads(const std::vector<std::shared_ptr<Thread>>& waiting_threads, s32 num_to_wake);
/// Insert a thread into the address arbiter container
void InsertThread(std::shared_ptr<Thread> thread);
/// Removes a thread from the address arbiter container
void RemoveThread(std::shared_ptr<Thread> thread);
// Gets the threads waiting on an address.
std::vector<std::shared_ptr<Thread>> GetThreadsWaitingOnAddress(VAddr address) const;
std::vector<std::shared_ptr<Thread>> GetThreadsWaitingOnAddress(VAddr address);
/// List of threads waiting for a address arbiter
std::unordered_map<VAddr, std::list<std::shared_ptr<Thread>>> arb_threads;
Core::System& system;
};