From c71d18f32e06fb456bc2829d9dfc5b42b78160b0 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Wed, 29 Oct 2025 11:53:34 +0100
Subject: x86_64: reduce using namespace use

---
 arch/x86_64/src/kapi/memory.cpp | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/arch/x86_64/src/kapi/memory.cpp b/arch/x86_64/src/kapi/memory.cpp
index be47941..46686b6 100644
--- a/arch/x86_64/src/kapi/memory.cpp
+++ b/arch/x86_64/src/kapi/memory.cpp
@@ -6,6 +6,7 @@
 
 #include "x86_64/boot/boot.hpp"
 #include "x86_64/boot/ld.hpp"
+#include "x86_64/cpu/registers.hpp"
 #include "x86_64/memory/region_allocator.hpp"
 
 #include <multiboot2/information.hpp>
@@ -14,9 +15,6 @@
 
 namespace teachos::memory
 {
-  using namespace boot::x86_64;
-  using namespace memory::x86_64;
-
   std::size_t const PLATFORM_FRAME_SIZE{4096};
 
   namespace
@@ -24,12 +22,13 @@ namespace teachos::memory
     auto constinit is_initialized = std::atomic_flag{};
     auto constinit allocator = static_cast<frame_allocator *>(nullptr);
 
-    auto create_memory_information() -> region_allocator::memory_information
+    auto create_memory_information() -> x86_64::region_allocator::memory_information
     {
-      auto const & mbi = multiboot_information_pointer.get();
+      auto const & mbi = boot::x86_64::multiboot_information_pointer.get();
       auto map = mbi->memory_map();
 
-      return {std::make_pair(physical_address{&_start_physical}, physical_address{&_end_physical}),
+      return {std::make_pair(physical_address{&boot::x86_64::_start_physical},
+                             physical_address{&boot::x86_64::_end_physical}),
               std::make_pair(physical_address{std::bit_cast<std::byte *>(&mbi)},
                              physical_address{std::bit_cast<std::byte *>(&mbi) + mbi->size_bytes()}),
               map};
@@ -53,19 +52,20 @@ namespace teachos::memory
       system::panic("[x86_64] Memory management has already been initialized.");
     }
 
-    auto memory_map = multiboot_information_pointer->maybe_memory_map();
+    auto memory_map = boot::x86_64::multiboot_information_pointer->maybe_memory_map();
     if (!memory_map)
     {
       system::panic("[x86_64] No memory map available.");
     }
 
     auto mem_info = create_memory_information();
-    auto allocator = region_allocator{mem_info};
+    auto allocator = x86_64::region_allocator{mem_info};
 
     static_cast<void>(allocator);
 
-    // kernel::cpu::set_cr0_bit(kernel::cpu::cr0_flags::WRITE_PROTECT);
-    // kernel::cpu::set_efer_bit(kernel::cpu::efer_flags::NXE);
+    cpu::x86_64::set_cr0_bit(cpu::x86_64::cr0_flags::WRITE_PROTECT);
+
+    // set_efer_bit(efer_flags::NXE);
 
     // paging::kernel_mapper kernel(allocator, memory_information);
     // kernel.remap_kernel();
-- 
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