From 4514e654552c7d65d14081fcf0f3a0d6515026de Mon Sep 17 00:00:00 2001
From: lizzie <lizzie@eden-emu.dev>
Date: Tue, 15 Sep 2026 08:14:15 +0000
Subject: [PATCH] 2026-09-15 08:14:15

Signed-off-by: lizzie <lizzie@eden-emu.dev>
---
 src/common/CMakeLists.txt         |  1 -
 src/common/spin_lock.h            | 50 -------------------------------
 src/core/hle/kernel/k_slab_heap.h |  3 +-
 src/core/hle/kernel/k_thread.h    |  3 +-
 4 files changed, 2 insertions(+), 55 deletions(-)
 delete mode 100644 src/common/spin_lock.h

diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt
index 61e0e64aa8..94da1724df 100644
--- a/src/common/CMakeLists.txt
+++ b/src/common/CMakeLists.txt
@@ -110,7 +110,6 @@ add_library(
     socket_types.h
     sparse_large_vector.cpp
     sparse_large_vector.h
-    spin_lock.h
     stb.cpp
     stb.h
     steady_clock.cpp
diff --git a/src/common/spin_lock.h b/src/common/spin_lock.h
deleted file mode 100644
index 93d507ae80..0000000000
--- a/src/common/spin_lock.h
+++ /dev/null
@@ -1,50 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#ifdef _MSC_VER
-#include <intrin.h>
-#elif defined(ARCHITECTURE_x86_64)
-#include <xmmintrin.h>
-#endif
-#include <atomic>
-
-namespace Common {
-
-/// @brief A lock similar to mutex that forces a thread to spin wait instead calling the
-/// supervisor. Should be used on short sequences of code.
-struct SpinLock {
-    SpinLock() noexcept = default;
-    SpinLock(const SpinLock&) noexcept = delete;
-    SpinLock& operator=(const SpinLock&) noexcept = delete;
-    SpinLock(SpinLock&&) noexcept = delete;
-    SpinLock& operator=(SpinLock&&) noexcept = delete;
-
-    inline void lock() noexcept {
-        while (lck.test_and_set(std::memory_order_acquire)) {
-#if defined(ARCHITECTURE_x86_64)
-            _mm_pause();
-#elif defined(ARCHITECTURE_arm64) && defined(_MSC_VER)
-            __yield();
-#elif defined(ARCHITECTURE_arm64)
-            asm("yield");
-#endif
-        }
-    }
-
-    inline void unlock() noexcept {
-        lck.clear(std::memory_order_release);
-    }
-
-    [[nodiscard]] inline bool try_lock() noexcept {
-        return !lck.test_and_set(std::memory_order_acquire);
-    }
-
-    std::atomic_flag lck = ATOMIC_FLAG_INIT;
-};
-
-} // namespace Common
diff --git a/src/core/hle/kernel/k_slab_heap.h b/src/core/hle/kernel/k_slab_heap.h
index c91e7969a2..cf9e1328be 100644
--- a/src/core/hle/kernel/k_slab_heap.h
+++ b/src/core/hle/kernel/k_slab_heap.h
@@ -12,7 +12,6 @@
 #include "common/atomic_ops.h"
 #include "common/common_funcs.h"
 #include "common/common_types.h"
-#include "common/spin_lock.h"
 
 namespace Kernel {
 
@@ -68,7 +67,7 @@ public:
 
 private:
     std::atomic<Node*> m_head{};
-    Common::SpinLock m_lock;
+    std::mutex m_lock;
 };
 
 } // namespace impl
diff --git a/src/core/hle/kernel/k_thread.h b/src/core/hle/kernel/k_thread.h
index 95ba1b4d76..0ee5f72c8e 100644
--- a/src/core/hle/kernel/k_thread.h
+++ b/src/core/hle/kernel/k_thread.h
@@ -19,7 +19,6 @@
 
 #include "common/intrusive_red_black_tree.h"
 #include "common/scratch_buffer.h"
-#include "common/spin_lock.h"
 #include "core/arm/arm_interface.h"
 #include "core/hle/kernel/k_affinity_mask.h"
 #include "core/hle/kernel/k_light_lock.h"
@@ -920,7 +919,7 @@ private:
     bool m_resource_limit_release_hint{};
     bool m_is_kernel_address_key{};
     StackParameters m_stack_parameters{};
-    Common::SpinLock m_context_guard{};
+    std::mutex m_context_guard{};
 
     // For emulation
     std::shared_ptr<Common::Fiber> m_host_context{};