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// Copyright 2024-2025, Amlal El Mahrouss (amlal@nekernel.org)
// Licensed under the Apache License, Version 2.0 (see LICENSE file)
// Official repository: https://github.com/nekernel-org/nekernel
#include <HALKit/POWER/AP.h>
#include <HALKit/POWER/Processor.h>
#include <KernelKit/DebugOutput.h>
/// @note This part of the HAL needs an owner.
namespace Kernel::Detail {
STATIC void mp_hang_fn(void) {
while (YES);
}
} // namespace Kernel::Detail
namespace Kernel {
/// @brief wakes up thread.
/// wakes up thread from hang.
void mp_wakeup_thread(HAL::StackFramePtr stack) {
if (!stack) return;
MUST_PASS(stack->R15 > 0);
MUST_PASS(stack->IP > 0);
hal_set_pc_to_hart(reinterpret_cast<HAL_HARDWARE_THREAD*>(stack->R15),
reinterpret_cast<VoidPtr>(stack->IP));
}
/// @brief makes thread sleep.
/// hooks and hangs thread to prevent code from executing.
void mp_hang_thread(HAL::StackFramePtr stack) {
if (!stack) return;
MUST_PASS(stack->R15 > 0);
hal_set_pc_to_hart(reinterpret_cast<HAL_HARDWARE_THREAD*>(stack->R15),
reinterpret_cast<VoidPtr>(Kernel::Detail::mp_hang_fn));
}
} // namespace Kernel
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