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hle: kernel: KProcess: Improvements for thread pinning.

This commit is contained in:
bunnei 2021-11-10 23:02:45 -08:00
parent 4c74761155
commit 316a2dd22a
2 changed files with 26 additions and 8 deletions
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27
src/core/hle/kernel/k_process.cpp
View File

@ -228,12 +228,15 @@ void KProcess::PinCurrentThread() {
const s32 core_id = GetCurrentCoreId(kernel); const s32 core_id = GetCurrentCoreId(kernel);
KThread* cur_thread = GetCurrentThreadPointer(kernel); KThread* cur_thread = GetCurrentThreadPointer(kernel);
// Pin it. // If the thread isn't terminated, pin it.
PinThread(core_id, cur_thread); if (!cur_thread->IsTerminationRequested()) {
cur_thread->Pin(); // Pin it.
PinThread(core_id, cur_thread);
cur_thread->Pin();
// An update is needed. // An update is needed.
KScheduler::SetSchedulerUpdateNeeded(kernel); KScheduler::SetSchedulerUpdateNeeded(kernel);
}
} }
void KProcess::UnpinCurrentThread() { void KProcess::UnpinCurrentThread() {
@ -251,6 +254,20 @@ void KProcess::UnpinCurrentThread() {
KScheduler::SetSchedulerUpdateNeeded(kernel); KScheduler::SetSchedulerUpdateNeeded(kernel);
} }
void KProcess::UnpinThread(KThread* thread) {
ASSERT(kernel.GlobalSchedulerContext().IsLocked());
// Get the thread's core id.
const auto core_id = thread->GetActiveCore();
// Unpin it.
UnpinThread(core_id, thread);
thread->Unpin();
// An update is needed.
KScheduler::SetSchedulerUpdateNeeded(kernel);
}
ResultCode KProcess::AddSharedMemory(KSharedMemory* shmem, [[maybe_unused]] VAddr address, ResultCode KProcess::AddSharedMemory(KSharedMemory* shmem, [[maybe_unused]] VAddr address,
[[maybe_unused]] size_t size) { [[maybe_unused]] size_t size) {
// Lock ourselves, to prevent concurrent access. // Lock ourselves, to prevent concurrent access.

7
src/core/hle/kernel/k_process.h
View File

@ -259,7 +259,7 @@ public:
[[nodiscard]] KThread* GetPinnedThread(s32 core_id) const { [[nodiscard]] KThread* GetPinnedThread(s32 core_id) const {
ASSERT(0 <= core_id && core_id < static_cast<s32>(Core::Hardware::NUM_CPU_CORES)); ASSERT(0 <= core_id && core_id < static_cast<s32>(Core::Hardware::NUM_CPU_CORES));
return pinned_threads[core_id]; return pinned_threads.at(core_id);
} }
/// Gets 8 bytes of random data for svcGetInfo RandomEntropy /// Gets 8 bytes of random data for svcGetInfo RandomEntropy
@ -347,6 +347,7 @@ public:
void PinCurrentThread(); void PinCurrentThread();
void UnpinCurrentThread(); void UnpinCurrentThread();
void UnpinThread(KThread* thread);
KLightLock& GetStateLock() { KLightLock& GetStateLock() {
return state_lock; return state_lock;
@ -368,14 +369,14 @@ private:
void PinThread(s32 core_id, KThread* thread) { void PinThread(s32 core_id, KThread* thread) {
ASSERT(0 <= core_id && core_id < static_cast<s32>(Core::Hardware::NUM_CPU_CORES)); ASSERT(0 <= core_id && core_id < static_cast<s32>(Core::Hardware::NUM_CPU_CORES));
ASSERT(thread != nullptr); ASSERT(thread != nullptr);
ASSERT(pinned_threads[core_id] == nullptr); ASSERT(pinned_threads.at(core_id) == nullptr);
pinned_threads[core_id] = thread; pinned_threads[core_id] = thread;
} }
void UnpinThread(s32 core_id, KThread* thread) { void UnpinThread(s32 core_id, KThread* thread) {
ASSERT(0 <= core_id && core_id < static_cast<s32>(Core::Hardware::NUM_CPU_CORES)); ASSERT(0 <= core_id && core_id < static_cast<s32>(Core::Hardware::NUM_CPU_CORES));
ASSERT(thread != nullptr); ASSERT(thread != nullptr);
ASSERT(pinned_threads[core_id] == thread); ASSERT(pinned_threads.at(core_id) == thread);
pinned_threads[core_id] = nullptr; pinned_threads[core_id] = nullptr;
} }