mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-10 07:06:34 +00:00
81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <mesosphere.hpp>
|
|
|
|
namespace ams::kern::arch::arm64 {
|
|
|
|
namespace impl {
|
|
|
|
class KHardwareTimerInterruptTask : public KInterruptTask {
|
|
public:
|
|
constexpr KHardwareTimerInterruptTask() : KInterruptTask() { /* ... */ }
|
|
|
|
virtual KInterruptTask *OnInterrupt(s32 interrupt_id) override {
|
|
MESOSPHERE_UNUSED(interrupt_id);
|
|
return this;
|
|
}
|
|
|
|
virtual void DoTask() override {
|
|
Kernel::GetHardwareTimer().DoInterruptTask();
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
namespace {
|
|
|
|
/* One global hardware timer interrupt task per core. */
|
|
impl::KHardwareTimerInterruptTask g_hardware_timer_interrupt_tasks[cpu::NumCores];
|
|
|
|
ALWAYS_INLINE auto *GetHardwareTimerInterruptTask(s32 core_id) {
|
|
return std::addressof(g_hardware_timer_interrupt_tasks[core_id]);
|
|
}
|
|
|
|
}
|
|
|
|
void KHardwareTimer::Initialize(s32 core_id) {
|
|
/* Setup the global timer for the core. */
|
|
InitializeGlobalTimer();
|
|
|
|
/* Bind the interrupt task for this core. */
|
|
Kernel::GetInterruptManager().BindHandler(GetHardwareTimerInterruptTask(core_id), KInterruptName_NonSecurePhysicalTimer, core_id, KInterruptController::PriorityLevel_Timer, true, true);
|
|
}
|
|
|
|
void KHardwareTimer::Finalize() {
|
|
/* Stop the hardware timer. */
|
|
StopTimer();
|
|
}
|
|
|
|
void KHardwareTimer::DoInterruptTask() {
|
|
/* Handle the interrupt. */
|
|
{
|
|
KScopedSchedulerLock slk;
|
|
KScopedSpinLock lk(this->GetLock());
|
|
|
|
/* Disable the timer interrupt while we handle this. */
|
|
DisableInterrupt();
|
|
if (const s64 next_time = this->DoInterruptTaskImpl(GetTick()); next_time > 0) {
|
|
/* We have a next time, so we should set the time to interrupt and turn the interrupt on. */
|
|
SetCompareValue(next_time);
|
|
EnableInterrupt();
|
|
}
|
|
}
|
|
|
|
/* Clear the timer interrupt. */
|
|
Kernel::GetInterruptManager().ClearInterrupt(KInterruptName_NonSecurePhysicalTimer, GetCurrentCoreId());
|
|
}
|
|
|
|
}
|