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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
#ifndef HALKIT_PROCESSOR_H
#define HALKIT_PROCESSOR_H
#include <NeKit/Config.h>
#include <NeKit/Utils.h>
#define rtl_nop_op() asm volatile("mr 0, 0")
#define kHalPPCAlignment __attribute__((aligned(4)))
namespace Kernel::HAL {
typedef UIntPtr Reg;
/// @brief Stack frame (as retrieved from assembly.)
struct PACKED StackFrame final {
Reg R8{0};
Reg R9{0};
Reg R10{0};
Reg R11{0};
Reg R12{0};
Reg R13{0};
Reg R14{0};
Reg R15{0};
Reg SP{0};
Reg IP{0};
};
typedef StackFrame* StackFramePtr;
inline void rt_halt() {
while (true) {
NoOp(); // no oop.
}
}
inline void rt_cli() {
NoOp(); // no oop
}
} // namespace Kernel::HAL
EXTERN_C Kernel::Void int_handle_math(Kernel::UIntPtr sp);
EXTERN_C Kernel::Void int_handle_pf(Kernel::UIntPtr sp);
/// @brief Set TLB.
Kernel::Bool hal_set_tlb(Kernel::UInt8 tlb, Kernel::UInt32 epn, Kernel::UInt64 rpn,
Kernel::UInt8 perms, Kernel::UInt8 wimge, Kernel::UInt8 ts,
Kernel::UInt8 esel, Kernel::UInt8 tsize, Kernel::UInt8 iprot);
/// @brief Write TLB.
Kernel::Void hal_write_tlb(Kernel::UInt32 mas0, Kernel::UInt32 mas1, Kernel::UInt32 mas2,
Kernel::UInt32 mas3, Kernel::UInt32 mas7);
/// @brief Flush TLB.
EXTERN_C Kernel::Void hal_flush_tlb();
#endif
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