3 files changed, 160 insertions, 1 deletions

diff --git a/src/core/hle/kernel/memory.cpp b/src/core/hle/kernel/memory.cpp
new file mode 100644
index 000000000..57e1912d3
--- /dev/null
+++ b/src/core/hle/kernel/memory.cpp
@@ -0,0 +1,124 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <map>
+#include <memory>
+#include <utility>
+#include <vector>
+
+#include "common/common_types.h"
+#include "common/logging/log.h"
+
+#include "core/hle/config_mem.h"
+#include "core/hle/kernel/vm_manager.h"
+#include "core/hle/result.h"
+#include "core/hle/shared_page.h"
+#include "core/memory.h"
+#include "core/memory_setup.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+namespace Memory {
+
+namespace {
+
+struct MemoryArea {
+    u32 base;
+    u32 size;
+    const char* name;
+};
+
+// We don't declare the IO regions in here since its handled by other means.
+static MemoryArea memory_areas[] = {
+    {SHARED_MEMORY_VADDR, SHARED_MEMORY_SIZE,     "Shared Memory"}, // Shared memory
+    {VRAM_VADDR,          VRAM_SIZE,              "VRAM"},          // Video memory (VRAM)
+    {DSP_RAM_VADDR,       DSP_RAM_SIZE,           "DSP RAM"},       // DSP memory
+    {TLS_AREA_VADDR,      TLS_AREA_SIZE,          "TLS Area"},      // TLS memory
+};
+
+/// Represents a block of memory mapped by ControlMemory/MapMemoryBlock
+struct MemoryBlock {
+    MemoryBlock() : handle(0), base_address(0), address(0), size(0), operation(0), permissions(0) {
+    }
+    u32 handle;
+    u32 base_address;
+    u32 address;
+    u32 size;
+    u32 operation;
+    u32 permissions;
+
+    const u32 GetVirtualAddress() const{
+        return base_address + address;
+    }
+};
+
+static std::map<u32, MemoryBlock> heap_map;
+static std::map<u32, MemoryBlock> heap_linear_map;
+
+}
+
+u32 MapBlock_Heap(u32 size, u32 operation, u32 permissions) {
+    MemoryBlock block;
+
+    block.base_address  = HEAP_VADDR;
+    block.size          = size;
+    block.operation     = operation;
+    block.permissions   = permissions;
+
+    if (heap_map.size() > 0) {
+        const MemoryBlock last_block = heap_map.rbegin()->second;
+        block.address = last_block.address + last_block.size;
+    }
+    heap_map[block.GetVirtualAddress()] = block;
+
+    return block.GetVirtualAddress();
+}
+
+u32 MapBlock_HeapLinear(u32 size, u32 operation, u32 permissions) {
+    MemoryBlock block;
+
+    block.base_address  = LINEAR_HEAP_VADDR;
+    block.size          = size;
+    block.operation     = operation;
+    block.permissions   = permissions;
+
+    if (heap_linear_map.size() > 0) {
+        const MemoryBlock last_block = heap_linear_map.rbegin()->second;
+        block.address = last_block.address + last_block.size;
+    }
+    heap_linear_map[block.GetVirtualAddress()] = block;
+
+    return block.GetVirtualAddress();
+}
+
+void Init() {
+    InitMemoryMap();
+    LOG_DEBUG(HW_Memory, "initialized OK");
+}
+
+void InitLegacyAddressSpace(Kernel::VMManager& address_space) {
+    using namespace Kernel;
+
+    for (MemoryArea& area : memory_areas) {
+        auto block = std::make_shared<std::vector<u8>>(area.size);
+        address_space.MapMemoryBlock(area.base, std::move(block), 0, area.size, MemoryState::Private).Unwrap();
+    }
+
+    auto cfg_mem_vma = address_space.MapBackingMemory(CONFIG_MEMORY_VADDR,
+            (u8*)&ConfigMem::config_mem, CONFIG_MEMORY_SIZE, MemoryState::Shared).MoveFrom();
+    address_space.Reprotect(cfg_mem_vma, VMAPermission::Read);
+
+    auto shared_page_vma = address_space.MapBackingMemory(SHARED_PAGE_VADDR,
+            (u8*)&SharedPage::shared_page, SHARED_PAGE_SIZE, MemoryState::Shared).MoveFrom();
+    address_space.Reprotect(shared_page_vma, VMAPermission::Read);
+}
+
+void Shutdown() {
+    heap_map.clear();
+    heap_linear_map.clear();
+
+    LOG_DEBUG(HW_Memory, "shutdown OK");
+}
+
+} // namespace
diff --git a/src/core/hle/kernel/memory.h b/src/core/hle/kernel/memory.h
new file mode 100644
index 000000000..cba8a0714
--- /dev/null
+++ b/src/core/hle/kernel/memory.h
@@ -0,0 +1,35 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace Kernel {
+class VMManager;
+}
+
+namespace Memory {
+
+void Init();
+void InitLegacyAddressSpace(Kernel::VMManager& address_space);
+void Shutdown();
+
+/**
+ * Maps a block of memory on the heap
+ * @param size Size of block in bytes
+ * @param operation Memory map operation type
+ * @param permissions Memory allocation permissions
+ */
+u32 MapBlock_Heap(u32 size, u32 operation, u32 permissions);
+
+/**
+ * Maps a block of memory on the GSP heap
+ * @param size Size of block in bytes
+ * @param operation Memory map operation type
+ * @param permissions Control memory permissions
+ */
+u32 MapBlock_HeapLinear(u32 size, u32 operation, u32 permissions);
+
+} // namespace
diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp
index 561824305..2cd1cfc14 100644
--- a/src/core/hle/kernel/process.cpp
+++ b/src/core/hle/kernel/process.cpp
@@ -7,11 +7,11 @@
 #include "common/logging/log.h"
 #include "common/make_unique.h"
 
+#include "core/hle/kernel/memory.h"
 #include "core/hle/kernel/process.h"
 #include "core/hle/kernel/resource_limit.h"
 #include "core/hle/kernel/thread.h"
 #include "core/hle/kernel/vm_manager.h"
-#include "core/mem_map.h"
 #include "core/memory.h"
 
 namespace Kernel {