1 files changed, 60 insertions, 0 deletions

diff --git a/src/core/hle/kernel/k_device_address_space.h b/src/core/hle/kernel/k_device_address_space.h
new file mode 100644
index 000000000..4709df995
--- /dev/null
+++ b/src/core/hle/kernel/k_device_address_space.h
@@ -0,0 +1,60 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <string>
+
+#include "common/common_types.h"
+#include "core/hle/kernel/k_page_table.h"
+#include "core/hle/kernel/slab_helpers.h"
+#include "core/hle/result.h"
+
+namespace Kernel {
+
+class KDeviceAddressSpace final
+    : public KAutoObjectWithSlabHeapAndContainer<KDeviceAddressSpace, KAutoObjectWithList> {
+    KERNEL_AUTOOBJECT_TRAITS(KDeviceAddressSpace, KAutoObject);
+
+public:
+    explicit KDeviceAddressSpace(KernelCore& kernel);
+    ~KDeviceAddressSpace();
+
+    Result Initialize(u64 address, u64 size);
+    void Finalize();
+
+    bool IsInitialized() const {
+        return m_is_initialized;
+    }
+    static void PostDestroy(uintptr_t arg) {}
+
+    Result Attach(Svc::DeviceName device_name);
+    Result Detach(Svc::DeviceName device_name);
+
+    Result MapByForce(KPageTable* page_table, VAddr process_address, size_t size,
+                      u64 device_address, u32 option) {
+        R_RETURN(this->Map(page_table, process_address, size, device_address, option, false));
+    }
+
+    Result MapAligned(KPageTable* page_table, VAddr process_address, size_t size,
+                      u64 device_address, u32 option) {
+        R_RETURN(this->Map(page_table, process_address, size, device_address, option, true));
+    }
+
+    Result Unmap(KPageTable* page_table, VAddr process_address, size_t size, u64 device_address);
+
+    static void Initialize();
+
+private:
+    Result Map(KPageTable* page_table, VAddr process_address, size_t size, u64 device_address,
+               u32 option, bool is_aligned);
+
+private:
+    KLightLock m_lock;
+    // KDevicePageTable m_table;
+    u64 m_space_address{};
+    u64 m_space_size{};
+    bool m_is_initialized{};
+};
+
+} // namespace Kernel