3a89723d97
- We largely had the mechanics in place for thread pinning, this change hooks these up. - Validated with tests https://github.com/Atmosphere-NX/Atmosphere/blob/master/tests/TestSvc/source/test_thread_pinning.cpp.
58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
// Copyright 2020 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <mutex>
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#include "common/assert.h"
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#include "core/core.h"
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#include "core/hle/kernel/global_scheduler_context.h"
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#include "core/hle/kernel/k_scheduler.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/kernel/physical_core.h"
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namespace Kernel {
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GlobalSchedulerContext::GlobalSchedulerContext(KernelCore& kernel_)
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: kernel{kernel_}, scheduler_lock{kernel_} {}
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GlobalSchedulerContext::~GlobalSchedulerContext() = default;
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void GlobalSchedulerContext::AddThread(KThread* thread) {
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std::scoped_lock lock{global_list_guard};
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thread_list.push_back(thread);
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}
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void GlobalSchedulerContext::RemoveThread(KThread* thread) {
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std::scoped_lock lock{global_list_guard};
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thread_list.erase(std::remove(thread_list.begin(), thread_list.end(), thread),
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thread_list.end());
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}
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void GlobalSchedulerContext::PreemptThreads() {
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// The priority levels at which the global scheduler preempts threads every 10 ms. They are
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// ordered from Core 0 to Core 3.
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static constexpr std::array<u32, Core::Hardware::NUM_CPU_CORES> preemption_priorities{
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59,
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59,
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59,
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63,
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};
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ASSERT(IsLocked());
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for (u32 core_id = 0; core_id < Core::Hardware::NUM_CPU_CORES; core_id++) {
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const u32 priority = preemption_priorities[core_id];
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kernel.Scheduler(core_id).RotateScheduledQueue(core_id, priority);
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// Signal an interrupt occurred. For core 3, this is a certainty, as preemption will result
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// in the rotator thread being scheduled. For cores 0-2, this is to simulate or system
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// interrupts that may have occurred.
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kernel.PhysicalCore(core_id).Interrupt();
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}
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}
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bool GlobalSchedulerContext::IsLocked() const {
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return scheduler_lock.IsLockedByCurrentThread();
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}
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} // namespace Kernel
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