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author | Lioncash <mathew1800@gmail.com> | 2019-03-05 17:54:06 +0100 |
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committer | Lioncash <mathew1800@gmail.com> | 2019-03-05 18:58:26 +0100 |
commit | ec6664f6d61f46569a2686b864ba3e9a0f85fc60 (patch) | |
tree | 67a78607f085efd3e4258fd90afd2aa2036d0448 /src/core/hle | |
parent | Merge pull request #2185 from FearlessTobi/port-4630 (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/core/hle/kernel/address_arbiter.cpp | 117 | ||||
-rw-r--r-- | src/core/hle/kernel/address_arbiter.h | 68 | ||||
-rw-r--r-- | src/core/hle/kernel/kernel.cpp | 11 | ||||
-rw-r--r-- | src/core/hle/kernel/kernel.h | 7 | ||||
-rw-r--r-- | src/core/hle/kernel/svc.cpp | 14 |
5 files changed, 135 insertions, 82 deletions
diff --git a/src/core/hle/kernel/address_arbiter.cpp b/src/core/hle/kernel/address_arbiter.cpp index a250d088d..f14283cca 100644 --- a/src/core/hle/kernel/address_arbiter.cpp +++ b/src/core/hle/kernel/address_arbiter.cpp @@ -9,6 +9,7 @@ #include "common/common_types.h" #include "core/core.h" #include "core/core_cpu.h" +#include "core/hle/kernel/address_arbiter.h" #include "core/hle/kernel/errors.h" #include "core/hle/kernel/object.h" #include "core/hle/kernel/process.h" @@ -17,53 +18,10 @@ #include "core/hle/result.h" #include "core/memory.h" -namespace Kernel::AddressArbiter { - -// Performs actual address waiting logic. -static ResultCode WaitForAddress(VAddr address, s64 timeout) { - SharedPtr<Thread> current_thread = GetCurrentThread(); - current_thread->SetArbiterWaitAddress(address); - current_thread->SetStatus(ThreadStatus::WaitArb); - current_thread->InvalidateWakeupCallback(); - - current_thread->WakeAfterDelay(timeout); - - Core::System::GetInstance().CpuCore(current_thread->GetProcessorID()).PrepareReschedule(); - return RESULT_TIMEOUT; -} - -// Gets the threads waiting on an address. -static std::vector<SharedPtr<Thread>> GetThreadsWaitingOnAddress(VAddr address) { - const auto RetrieveWaitingThreads = [](std::size_t core_index, - std::vector<SharedPtr<Thread>>& waiting_threads, - VAddr arb_addr) { - const auto& scheduler = Core::System::GetInstance().Scheduler(core_index); - const auto& thread_list = scheduler.GetThreadList(); - - for (const auto& thread : thread_list) { - if (thread->GetArbiterWaitAddress() == arb_addr) - waiting_threads.push_back(thread); - } - }; - - // Retrieve all threads that are waiting for this address. - std::vector<SharedPtr<Thread>> threads; - RetrieveWaitingThreads(0, threads, address); - RetrieveWaitingThreads(1, threads, address); - RetrieveWaitingThreads(2, threads, address); - RetrieveWaitingThreads(3, threads, address); - - // Sort them by priority, such that the highest priority ones come first. - std::sort(threads.begin(), threads.end(), - [](const SharedPtr<Thread>& lhs, const SharedPtr<Thread>& rhs) { - return lhs->GetPriority() < rhs->GetPriority(); - }); - - return threads; -} - +namespace Kernel { +namespace { // Wake up num_to_wake (or all) threads in a vector. -static void WakeThreads(std::vector<SharedPtr<Thread>>& waiting_threads, s32 num_to_wake) { +void WakeThreads(std::vector<SharedPtr<Thread>>& waiting_threads, s32 num_to_wake) { // Only process up to 'target' threads, unless 'target' is <= 0, in which case process // them all. std::size_t last = waiting_threads.size(); @@ -78,17 +36,20 @@ static void WakeThreads(std::vector<SharedPtr<Thread>>& waiting_threads, s32 num waiting_threads[i]->ResumeFromWait(); } } +} // Anonymous namespace -// Signals an address being waited on. -ResultCode SignalToAddress(VAddr address, s32 num_to_wake) { +AddressArbiter::AddressArbiter() = default; +AddressArbiter::~AddressArbiter() = default; + +ResultCode AddressArbiter::SignalToAddress(VAddr address, s32 num_to_wake) { std::vector<SharedPtr<Thread>> waiting_threads = GetThreadsWaitingOnAddress(address); WakeThreads(waiting_threads, num_to_wake); return RESULT_SUCCESS; } -// Signals an address being waited on and increments its value if equal to the value argument. -ResultCode IncrementAndSignalToAddressIfEqual(VAddr address, s32 value, s32 num_to_wake) { +ResultCode AddressArbiter::IncrementAndSignalToAddressIfEqual(VAddr address, s32 value, + s32 num_to_wake) { // Ensure that we can write to the address. if (!Memory::IsValidVirtualAddress(address)) { return ERR_INVALID_ADDRESS_STATE; @@ -103,10 +64,8 @@ ResultCode IncrementAndSignalToAddressIfEqual(VAddr address, s32 value, s32 num_ return SignalToAddress(address, num_to_wake); } -// Signals an address being waited on and modifies its value based on waiting thread count if equal -// to the value argument. -ResultCode ModifyByWaitingCountAndSignalToAddressIfEqual(VAddr address, s32 value, - s32 num_to_wake) { +ResultCode AddressArbiter::ModifyByWaitingCountAndSignalToAddressIfEqual(VAddr address, s32 value, + s32 num_to_wake) { // Ensure that we can write to the address. if (!Memory::IsValidVirtualAddress(address)) { return ERR_INVALID_ADDRESS_STATE; @@ -135,8 +94,8 @@ ResultCode ModifyByWaitingCountAndSignalToAddressIfEqual(VAddr address, s32 valu return RESULT_SUCCESS; } -// Waits on an address if the value passed is less than the argument value, optionally decrementing. -ResultCode WaitForAddressIfLessThan(VAddr address, s32 value, s64 timeout, bool should_decrement) { +ResultCode AddressArbiter::WaitForAddressIfLessThan(VAddr address, s32 value, s64 timeout, + bool should_decrement) { // Ensure that we can read the address. if (!Memory::IsValidVirtualAddress(address)) { return ERR_INVALID_ADDRESS_STATE; @@ -158,8 +117,7 @@ ResultCode WaitForAddressIfLessThan(VAddr address, s32 value, s64 timeout, bool return WaitForAddress(address, timeout); } -// Waits on an address if the value passed is equal to the argument value. -ResultCode WaitForAddressIfEqual(VAddr address, s32 value, s64 timeout) { +ResultCode AddressArbiter::WaitForAddressIfEqual(VAddr address, s32 value, s64 timeout) { // Ensure that we can read the address. if (!Memory::IsValidVirtualAddress(address)) { return ERR_INVALID_ADDRESS_STATE; @@ -175,4 +133,45 @@ ResultCode WaitForAddressIfEqual(VAddr address, s32 value, s64 timeout) { return WaitForAddress(address, timeout); } -} // namespace Kernel::AddressArbiter + +ResultCode AddressArbiter::WaitForAddress(VAddr address, s64 timeout) { + SharedPtr<Thread> current_thread = GetCurrentThread(); + current_thread->SetArbiterWaitAddress(address); + current_thread->SetStatus(ThreadStatus::WaitArb); + current_thread->InvalidateWakeupCallback(); + + current_thread->WakeAfterDelay(timeout); + + Core::System::GetInstance().CpuCore(current_thread->GetProcessorID()).PrepareReschedule(); + return RESULT_TIMEOUT; +} + +std::vector<SharedPtr<Thread>> AddressArbiter::GetThreadsWaitingOnAddress(VAddr address) const { + const auto RetrieveWaitingThreads = [](std::size_t core_index, + std::vector<SharedPtr<Thread>>& waiting_threads, + VAddr arb_addr) { + const auto& scheduler = Core::System::GetInstance().Scheduler(core_index); + const auto& thread_list = scheduler.GetThreadList(); + + for (const auto& thread : thread_list) { + if (thread->GetArbiterWaitAddress() == arb_addr) + waiting_threads.push_back(thread); + } + }; + + // Retrieve all threads that are waiting for this address. + std::vector<SharedPtr<Thread>> threads; + RetrieveWaitingThreads(0, threads, address); + RetrieveWaitingThreads(1, threads, address); + RetrieveWaitingThreads(2, threads, address); + RetrieveWaitingThreads(3, threads, address); + + // Sort them by priority, such that the highest priority ones come first. + std::sort(threads.begin(), threads.end(), + [](const SharedPtr<Thread>& lhs, const SharedPtr<Thread>& rhs) { + return lhs->GetPriority() < rhs->GetPriority(); + }); + + return threads; +} +} // namespace Kernel diff --git a/src/core/hle/kernel/address_arbiter.h b/src/core/hle/kernel/address_arbiter.h index b58f21bec..6f46190f6 100644 --- a/src/core/hle/kernel/address_arbiter.h +++ b/src/core/hle/kernel/address_arbiter.h @@ -5,28 +5,62 @@ #pragma once #include "common/common_types.h" +#include "core/hle/kernel/address_arbiter.h" union ResultCode; -namespace Kernel::AddressArbiter { +namespace Kernel { -enum class ArbitrationType { - WaitIfLessThan = 0, - DecrementAndWaitIfLessThan = 1, - WaitIfEqual = 2, -}; +class Thread; -enum class SignalType { - Signal = 0, - IncrementAndSignalIfEqual = 1, - ModifyByWaitingCountAndSignalIfEqual = 2, -}; +class AddressArbiter { +public: + enum class ArbitrationType { + WaitIfLessThan = 0, + DecrementAndWaitIfLessThan = 1, + WaitIfEqual = 2, + }; + + enum class SignalType { + Signal = 0, + IncrementAndSignalIfEqual = 1, + ModifyByWaitingCountAndSignalIfEqual = 2, + }; + + AddressArbiter(); + ~AddressArbiter(); + + AddressArbiter(const AddressArbiter&) = delete; + AddressArbiter& operator=(const AddressArbiter&) = delete; + + AddressArbiter(AddressArbiter&&) = default; + AddressArbiter& operator=(AddressArbiter&&) = delete; -ResultCode SignalToAddress(VAddr address, s32 num_to_wake); -ResultCode IncrementAndSignalToAddressIfEqual(VAddr address, s32 value, s32 num_to_wake); -ResultCode ModifyByWaitingCountAndSignalToAddressIfEqual(VAddr address, s32 value, s32 num_to_wake); + /// Signals an address being waited on. + ResultCode SignalToAddress(VAddr address, s32 num_to_wake); -ResultCode WaitForAddressIfLessThan(VAddr address, s32 value, s64 timeout, bool should_decrement); -ResultCode WaitForAddressIfEqual(VAddr address, s32 value, s64 timeout); + /// Signals an address being waited on and increments its value if equal to the value argument. + ResultCode IncrementAndSignalToAddressIfEqual(VAddr address, s32 value, s32 num_to_wake); + + /// Signals an address being waited on and modifies its value based on waiting thread count if + /// equal to the value argument. + ResultCode ModifyByWaitingCountAndSignalToAddressIfEqual(VAddr address, s32 value, + s32 num_to_wake); + + /// Waits on an address if the value passed is less than the argument value, + /// optionally decrementing. + ResultCode WaitForAddressIfLessThan(VAddr address, s32 value, s64 timeout, + bool should_decrement); + + /// Waits on an address if the value passed is equal to the argument value. + ResultCode WaitForAddressIfEqual(VAddr address, s32 value, s64 timeout); + +private: + // Waits on the given address with a timeout in nanoseconds + ResultCode WaitForAddress(VAddr address, s64 timeout); + + // Gets the threads waiting on an address. + std::vector<SharedPtr<Thread>> GetThreadsWaitingOnAddress(VAddr address) const; +}; -} // namespace Kernel::AddressArbiter +} // namespace Kernel diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp index dd749eed4..b771a33a6 100644 --- a/src/core/hle/kernel/kernel.cpp +++ b/src/core/hle/kernel/kernel.cpp @@ -12,6 +12,7 @@ #include "core/core.h" #include "core/core_timing.h" +#include "core/hle/kernel/address_arbiter.h" #include "core/hle/kernel/client_port.h" #include "core/hle/kernel/handle_table.h" #include "core/hle/kernel/kernel.h" @@ -135,6 +136,8 @@ struct KernelCore::Impl { std::vector<SharedPtr<Process>> process_list; Process* current_process = nullptr; + Kernel::AddressArbiter address_arbiter; + SharedPtr<ResourceLimit> system_resource_limit; Core::Timing::EventType* thread_wakeup_event_type = nullptr; @@ -184,6 +187,14 @@ const Process* KernelCore::CurrentProcess() const { return impl->current_process; } +AddressArbiter& KernelCore::AddressArbiter() { + return impl->address_arbiter; +} + +const AddressArbiter& KernelCore::AddressArbiter() const { + return impl->address_arbiter; +} + void KernelCore::AddNamedPort(std::string name, SharedPtr<ClientPort> port) { impl->named_ports.emplace(std::move(name), std::move(port)); } diff --git a/src/core/hle/kernel/kernel.h b/src/core/hle/kernel/kernel.h index 154bced42..32b8ede0e 100644 --- a/src/core/hle/kernel/kernel.h +++ b/src/core/hle/kernel/kernel.h @@ -18,6 +18,7 @@ struct EventType; namespace Kernel { +class AddressArbiter; class ClientPort; class HandleTable; class Process; @@ -67,6 +68,12 @@ public: /// Retrieves a const pointer to the current process. const Process* CurrentProcess() const; + /// Provides a reference to the kernel's address arbiter. + Kernel::AddressArbiter& AddressArbiter(); + + /// Provides a const reference to the kernel's address arbiter. + const Kernel::AddressArbiter& AddressArbiter() const; + /// Adds a port to the named port table void AddNamedPort(std::string name, SharedPtr<ClientPort> port); diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index c5d399bab..b7546087e 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -1495,13 +1495,14 @@ static ResultCode WaitForAddress(VAddr address, u32 type, s32 value, s64 timeout return ERR_INVALID_ADDRESS; } + auto& address_arbiter = Core::System::GetInstance().Kernel().AddressArbiter(); switch (static_cast<AddressArbiter::ArbitrationType>(type)) { case AddressArbiter::ArbitrationType::WaitIfLessThan: - return AddressArbiter::WaitForAddressIfLessThan(address, value, timeout, false); + return address_arbiter.WaitForAddressIfLessThan(address, value, timeout, false); case AddressArbiter::ArbitrationType::DecrementAndWaitIfLessThan: - return AddressArbiter::WaitForAddressIfLessThan(address, value, timeout, true); + return address_arbiter.WaitForAddressIfLessThan(address, value, timeout, true); case AddressArbiter::ArbitrationType::WaitIfEqual: - return AddressArbiter::WaitForAddressIfEqual(address, value, timeout); + return address_arbiter.WaitForAddressIfEqual(address, value, timeout); default: LOG_ERROR(Kernel_SVC, "Invalid arbitration type, expected WaitIfLessThan, DecrementAndWaitIfLessThan " @@ -1526,13 +1527,14 @@ static ResultCode SignalToAddress(VAddr address, u32 type, s32 value, s32 num_to return ERR_INVALID_ADDRESS; } + auto& address_arbiter = Core::System::GetInstance().Kernel().AddressArbiter(); switch (static_cast<AddressArbiter::SignalType>(type)) { case AddressArbiter::SignalType::Signal: - return AddressArbiter::SignalToAddress(address, num_to_wake); + return address_arbiter.SignalToAddress(address, num_to_wake); case AddressArbiter::SignalType::IncrementAndSignalIfEqual: - return AddressArbiter::IncrementAndSignalToAddressIfEqual(address, value, num_to_wake); + return address_arbiter.IncrementAndSignalToAddressIfEqual(address, value, num_to_wake); case AddressArbiter::SignalType::ModifyByWaitingCountAndSignalIfEqual: - return AddressArbiter::ModifyByWaitingCountAndSignalToAddressIfEqual(address, value, + return address_arbiter.ModifyByWaitingCountAndSignalToAddressIfEqual(address, value, num_to_wake); default: LOG_ERROR(Kernel_SVC, |