From 3a89723d97b8e646cde569030057777813f4371c Mon Sep 17 00:00:00 2001 From: bunnei Date: Wed, 29 Dec 2021 21:40:38 -0800 Subject: core: hle: kernel: Implement thread pinning. - 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. --- src/core/hle/kernel/k_interrupt_manager.cpp | 34 +++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 src/core/hle/kernel/k_interrupt_manager.cpp (limited to 'src/core/hle/kernel/k_interrupt_manager.cpp') diff --git a/src/core/hle/kernel/k_interrupt_manager.cpp b/src/core/hle/kernel/k_interrupt_manager.cpp new file mode 100644 index 000000000..e5dd39751 --- /dev/null +++ b/src/core/hle/kernel/k_interrupt_manager.cpp @@ -0,0 +1,34 @@ +// Copyright 2021 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "core/hle/kernel/k_interrupt_manager.h" +#include "core/hle/kernel/k_process.h" +#include "core/hle/kernel/k_scheduler.h" +#include "core/hle/kernel/k_thread.h" +#include "core/hle/kernel/kernel.h" + +namespace Kernel::KInterruptManager { + +void HandleInterrupt(KernelCore& kernel, s32 core_id) { + auto* process = kernel.CurrentProcess(); + if (!process) { + return; + } + + auto& scheduler = kernel.Scheduler(core_id); + auto& current_thread = *scheduler.GetCurrentThread(); + + // If the user disable count is set, we may need to pin the current thread. + if (current_thread.GetUserDisableCount() && !process->GetPinnedThread(core_id)) { + KScopedSchedulerLock sl{kernel}; + + // Pin the current thread. + process->PinCurrentThread(core_id); + + // Set the interrupt flag for the thread. + scheduler.GetCurrentThread()->SetInterruptFlag(); + } +} + +} // namespace Kernel::KInterruptManager -- cgit v1.2.3