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#include "arch/memory.hpp"
#include "kern/error.hpp"
#include "x86_64/boot/boot.hpp"
#include <multiboot2/information.hpp>
#include <atomic>
// extern "C" teachos::arch::asm_pointer<multiboot2::information_view> multiboot_information_pointer;
namespace teachos::arch::memory
{
namespace
{
auto constinit is_initialized = std::atomic_flag{};
// auto create_memory_information() -> x86_64::memory::region_allocator::memory_information {
// };
} // namespace
auto init() -> void
{
if (is_initialized.test_and_set())
{
teachos::panic("[x86_64] Memory management has already been initialized.");
}
auto memory_map = multiboot_information_pointer->maybe_memory_map();
if (!memory_map)
{
teachos::panic("[x86_64] No memory map available.");
}
// auto mem_info = x86_64::memory::region_allocator::memory_information{};
// auto allocator = x86_64::memory::region_allocator{mem_info};
// kernel::cpu::set_cr0_bit(kernel::cpu::cr0_flags::WRITE_PROTECT);
// kernel::cpu::set_efer_bit(kernel::cpu::efer_flags::NXE);
// paging::kernel_mapper kernel(allocator, memory_information);
// kernel.remap_kernel();
// video::vga::text::write("Kernel remapping successful", video::vga::text::common_attributes::green_on_black);
// video::vga::text::newline();
// remap_heap(heap::KERNEL_HEAP_START, heap::KERNEL_HEAP_SIZE);
// video::vga::text::write("Heap remapping successful", video::vga::text::common_attributes::green_on_black);
// video::vga::text::newline();
}
} // namespace teachos::arch::memory
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