diff --git a/Source/Core/Common/CodeBlock.h b/Source/Core/Common/CodeBlock.h
index 1666f270a4..40b8db3acf 100644
--- a/Source/Core/Common/CodeBlock.h
+++ b/Source/Core/Common/CodeBlock.h
@@ -48,7 +48,7 @@ public:
   void AllocCodeSpace(int size, bool need_low = true)
   {
     region_size = size;
-    region = (u8*)AllocateExecutableMemory(region_size, need_low);
+    region = static_cast<u8*>(Common::AllocateExecutableMemory(region_size, need_low));
     T::SetCodePtr(region);
   }
 
@@ -63,7 +63,7 @@ public:
   // Call this when shutting down. Don't rely on the destructor, even though it'll do the job.
   void FreeCodeSpace()
   {
-    FreeMemoryPages(region, region_size);
+    Common::FreeMemoryPages(region, region_size);
     region = nullptr;
     region_size = 0;
     parent_region_size = 0;
@@ -77,7 +77,7 @@ public:
   bool IsInSpace(u8* ptr) const { return (ptr >= region) && (ptr < (region + region_size)); }
   // Cannot currently be undone. Will write protect the entire code region.
   // Start over if you need to change the code (call FreeCodeSpace(), AllocCodeSpace()).
-  void WriteProtect() { WriteProtectMemory(region, region_size, true); }
+  void WriteProtect() { Common::WriteProtectMemory(region, region_size, true); }
   void ResetCodePtr() { T::SetCodePtr(region); }
   size_t GetSpaceLeft() const
   {
diff --git a/Source/Core/Common/MemoryUtil.cpp b/Source/Core/Common/MemoryUtil.cpp
index 1941f8e35b..ce0d38cbcb 100644
--- a/Source/Core/Common/MemoryUtil.cpp
+++ b/Source/Core/Common/MemoryUtil.cpp
@@ -31,6 +31,9 @@
 // Uncomment the following line to be able to run Dolphin in Valgrind.
 //#undef MAP_32BIT
 
+namespace Common
+{
+
 #if !defined(_WIN32)
 #include <unistd.h>
 static uintptr_t RoundPage(uintptr_t addr)
@@ -273,3 +276,5 @@ size_t MemPhysical()
   return (size_t)memInfo.totalram * memInfo.mem_unit;
 #endif
 }
+
+}  // namespace Common
diff --git a/Source/Core/Common/MemoryUtil.h b/Source/Core/Common/MemoryUtil.h
index 2224324fa2..56ef604def 100644
--- a/Source/Core/Common/MemoryUtil.h
+++ b/Source/Core/Common/MemoryUtil.h
@@ -7,6 +7,9 @@
 #include <cstddef>
 #include <string>
 
+namespace Common
+{
+
 void* AllocateExecutableMemory(size_t size, bool low = true);
 void* AllocateMemoryPages(size_t size);
 void FreeMemoryPages(void* ptr, size_t size);
@@ -25,3 +28,5 @@ inline int GetPageSize()
 {
   return 4096;
 }
+
+}  // namespace Common
diff --git a/Source/Core/Core/Core.cpp b/Source/Core/Core/Core.cpp
index 9d495f8d02..c18802622e 100644
--- a/Source/Core/Core/Core.cpp
+++ b/Source/Core/Core/Core.cpp
@@ -162,7 +162,7 @@ void FrameUpdateOnCPUThread()
 std::string StopMessage(bool main_thread, const std::string& message)
 {
   return StringFromFormat("Stop [%s %i]\t%s\t%s", main_thread ? "Main Thread" : "Video Thread",
-                          Common::CurrentThreadId(), MemUsage().c_str(), message.c_str());
+                          Common::CurrentThreadId(), Common::MemUsage().c_str(), message.c_str());
 }
 
 void DisplayMessage(const std::string& message, int time_in_ms)
diff --git a/Source/Core/Core/DSP/DSPCore.cpp b/Source/Core/Core/DSP/DSPCore.cpp
index 8c69e4e82d..7c6a3beb52 100644
--- a/Source/Core/Core/DSP/DSPCore.cpp
+++ b/Source/Core/Core/DSP/DSPCore.cpp
@@ -90,10 +90,10 @@ static bool VerifyRoms()
 
 static void DSPCore_FreeMemoryPages()
 {
-  FreeMemoryPages(g_dsp.irom, DSP_IROM_BYTE_SIZE);
-  FreeMemoryPages(g_dsp.iram, DSP_IRAM_BYTE_SIZE);
-  FreeMemoryPages(g_dsp.dram, DSP_DRAM_BYTE_SIZE);
-  FreeMemoryPages(g_dsp.coef, DSP_COEF_BYTE_SIZE);
+  Common::FreeMemoryPages(g_dsp.irom, DSP_IROM_BYTE_SIZE);
+  Common::FreeMemoryPages(g_dsp.iram, DSP_IRAM_BYTE_SIZE);
+  Common::FreeMemoryPages(g_dsp.dram, DSP_DRAM_BYTE_SIZE);
+  Common::FreeMemoryPages(g_dsp.coef, DSP_COEF_BYTE_SIZE);
   g_dsp.irom = g_dsp.iram = g_dsp.dram = g_dsp.coef = nullptr;
 }
 
@@ -103,10 +103,10 @@ bool DSPCore_Init(const DSPInitOptions& opts)
   g_cycles_left = 0;
   g_init_hax = false;
 
-  g_dsp.irom = (u16*)AllocateMemoryPages(DSP_IROM_BYTE_SIZE);
-  g_dsp.iram = (u16*)AllocateMemoryPages(DSP_IRAM_BYTE_SIZE);
-  g_dsp.dram = (u16*)AllocateMemoryPages(DSP_DRAM_BYTE_SIZE);
-  g_dsp.coef = (u16*)AllocateMemoryPages(DSP_COEF_BYTE_SIZE);
+  g_dsp.irom = static_cast<u16*>(Common::AllocateMemoryPages(DSP_IROM_BYTE_SIZE));
+  g_dsp.iram = static_cast<u16*>(Common::AllocateMemoryPages(DSP_IRAM_BYTE_SIZE));
+  g_dsp.dram = static_cast<u16*>(Common::AllocateMemoryPages(DSP_DRAM_BYTE_SIZE));
+  g_dsp.coef = static_cast<u16*>(Common::AllocateMemoryPages(DSP_COEF_BYTE_SIZE));
 
   memcpy(g_dsp.irom, opts.irom_contents.data(), DSP_IROM_BYTE_SIZE);
   memcpy(g_dsp.coef, opts.coef_contents.data(), DSP_COEF_BYTE_SIZE);
@@ -142,7 +142,7 @@ bool DSPCore_Init(const DSPInitOptions& opts)
   gdsp_ifx_init();
   // Mostly keep IRAM write protected. We unprotect only when DMA-ing
   // in new ucodes.
-  WriteProtectMemory(g_dsp.iram, DSP_IRAM_BYTE_SIZE, false);
+  Common::WriteProtectMemory(g_dsp.iram, DSP_IRAM_BYTE_SIZE, false);
 
   // Initialize JIT, if necessary
   if (opts.core_type == DSPInitOptions::CORE_JIT)
diff --git a/Source/Core/Core/DSP/DSPHWInterface.cpp b/Source/Core/Core/DSP/DSPHWInterface.cpp
index b1bf47f3d7..06005f6191 100644
--- a/Source/Core/Core/DSP/DSPHWInterface.cpp
+++ b/Source/Core/Core/DSP/DSPHWInterface.cpp
@@ -225,7 +225,7 @@ u16 gdsp_ifx_read(u16 addr)
 
 static const u8* gdsp_idma_in(u16 dsp_addr, u32 addr, u32 size)
 {
-  UnWriteProtectMemory(g_dsp.iram, DSP_IRAM_BYTE_SIZE, false);
+  Common::UnWriteProtectMemory(g_dsp.iram, DSP_IRAM_BYTE_SIZE, false);
 
   u8* dst = ((u8*)g_dsp.iram);
   for (u32 i = 0; i < size; i += 2)
@@ -233,7 +233,7 @@ static const u8* gdsp_idma_in(u16 dsp_addr, u32 addr, u32 size)
     *(u16*)&dst[dsp_addr + i] =
         Common::swap16(*(const u16*)&g_dsp.cpu_ram[(addr + i) & 0x0fffffff]);
   }
-  WriteProtectMemory(g_dsp.iram, DSP_IRAM_BYTE_SIZE, false);
+  Common::WriteProtectMemory(g_dsp.iram, DSP_IRAM_BYTE_SIZE, false);
 
   DSPHost::CodeLoaded((const u8*)g_dsp.iram + dsp_addr, size);
 
diff --git a/Source/Core/Core/HW/DSP.cpp b/Source/Core/Core/HW/DSP.cpp
index fe37eb3cd2..9fdd22bcf4 100644
--- a/Source/Core/Core/HW/DSP.cpp
+++ b/Source/Core/Core/HW/DSP.cpp
@@ -244,7 +244,7 @@ void Init(bool hle)
     g_ARAM.wii_mode = false;
     g_ARAM.size = ARAM_SIZE;
     g_ARAM.mask = ARAM_MASK;
-    g_ARAM.ptr = (u8*)AllocateMemoryPages(g_ARAM.size);
+    g_ARAM.ptr = static_cast<u8*>(Common::AllocateMemoryPages(g_ARAM.size));
   }
 
   memset(&g_audioDMA, 0, sizeof(g_audioDMA));
@@ -270,7 +270,7 @@ void Shutdown()
 {
   if (!g_ARAM.wii_mode)
   {
-    FreeMemoryPages(g_ARAM.ptr, g_ARAM.size);
+    Common::FreeMemoryPages(g_ARAM.ptr, g_ARAM.size);
     g_ARAM.ptr = nullptr;
   }
 
diff --git a/Source/Core/Core/HW/DSPLLE/DSPLLE.cpp b/Source/Core/Core/HW/DSPLLE/DSPLLE.cpp
index fad25fabb3..dcd77db7d5 100644
--- a/Source/Core/Core/HW/DSPLLE/DSPLLE.cpp
+++ b/Source/Core/Core/HW/DSPLLE/DSPLLE.cpp
@@ -68,9 +68,9 @@ void DSPLLE::DoState(PointerWrap& p)
   p.DoArray(g_dsp.ifx_regs);
   p.Do(g_dsp.mbox[0]);
   p.Do(g_dsp.mbox[1]);
-  UnWriteProtectMemory(g_dsp.iram, DSP_IRAM_BYTE_SIZE, false);
+  Common::UnWriteProtectMemory(g_dsp.iram, DSP_IRAM_BYTE_SIZE, false);
   p.DoArray(g_dsp.iram, DSP_IRAM_SIZE);
-  WriteProtectMemory(g_dsp.iram, DSP_IRAM_BYTE_SIZE, false);
+  Common::WriteProtectMemory(g_dsp.iram, DSP_IRAM_BYTE_SIZE, false);
   if (p.GetMode() == PointerWrap::MODE_READ)
     DSPHost::CodeLoaded((const u8*)g_dsp.iram, DSP_IRAM_BYTE_SIZE);
   p.DoArray(g_dsp.dram, DSP_DRAM_SIZE);
diff --git a/Source/Core/Core/HW/EXI_DeviceIPL.cpp b/Source/Core/Core/HW/EXI_DeviceIPL.cpp
index 4cae293f0b..29d3624e13 100644
--- a/Source/Core/Core/HW/EXI_DeviceIPL.cpp
+++ b/Source/Core/Core/HW/EXI_DeviceIPL.cpp
@@ -93,7 +93,7 @@ CEXIIPL::CEXIIPL() : m_uPosition(0), m_uAddress(0), m_uRWOffset(0), m_FontsLoade
   m_bNTSC = SConfig::GetInstance().bNTSC;
 
   // Create the IPL
-  m_pIPL = (u8*)AllocateMemoryPages(ROM_SIZE);
+  m_pIPL = static_cast<u8*>(Common::AllocateMemoryPages(ROM_SIZE));
 
   if (SConfig::GetInstance().bHLE_BS2)
   {
@@ -122,13 +122,13 @@ CEXIIPL::CEXIIPL() : m_uPosition(0), m_uAddress(0), m_uRWOffset(0), m_FontsLoade
   g_SRAM.lang = SConfig::GetInstance().SelectedLanguage;
   FixSRAMChecksums();
 
-  WriteProtectMemory(m_pIPL, ROM_SIZE);
+  Common::WriteProtectMemory(m_pIPL, ROM_SIZE);
   m_uAddress = 0;
 }
 
 CEXIIPL::~CEXIIPL()
 {
-  FreeMemoryPages(m_pIPL, ROM_SIZE);
+  Common::FreeMemoryPages(m_pIPL, ROM_SIZE);
   m_pIPL = nullptr;
 
   // SRAM
diff --git a/Source/Core/Core/PowerPC/Jit64/Jit.cpp b/Source/Core/Core/PowerPC/Jit64/Jit.cpp
index a1ef3c409c..96159d9154 100644
--- a/Source/Core/Core/PowerPC/Jit64/Jit.cpp
+++ b/Source/Core/Core/PowerPC/Jit64/Jit.cpp
@@ -151,9 +151,9 @@ enum
 void Jit64::AllocStack()
 {
 #ifndef _WIN32
-  m_stack = (u8*)AllocateMemoryPages(STACK_SIZE);
-  ReadProtectMemory(m_stack, GUARD_SIZE);
-  ReadProtectMemory(m_stack + GUARD_OFFSET, GUARD_SIZE);
+  m_stack = static_cast<u8*>(Common::AllocateMemoryPages(STACK_SIZE));
+  Common::ReadProtectMemory(m_stack, GUARD_SIZE);
+  Common::ReadProtectMemory(m_stack + GUARD_OFFSET, GUARD_SIZE);
 #else
   // For windows we just keep using the system stack and reserve a large amount of memory at the end
   // of the stack.
@@ -167,7 +167,7 @@ void Jit64::FreeStack()
 #ifndef _WIN32
   if (m_stack)
   {
-    FreeMemoryPages(m_stack, STACK_SIZE);
+    Common::FreeMemoryPages(m_stack, STACK_SIZE);
     m_stack = nullptr;
   }
 #endif
@@ -186,7 +186,7 @@ bool Jit64::HandleStackFault()
   m_enable_blr_optimization = false;
 #ifndef _WIN32
   // Windows does this automatically.
-  UnWriteProtectMemory(m_stack + GUARD_OFFSET, GUARD_SIZE);
+  Common::UnWriteProtectMemory(m_stack + GUARD_OFFSET, GUARD_SIZE);
 #endif
   // We're going to need to clear the whole cache to get rid of the bad
   // CALLs, but we can't yet.  Fake the downcount so we're forced to the
diff --git a/Source/Core/VideoBackends/OGL/StreamBuffer.cpp b/Source/Core/VideoBackends/OGL/StreamBuffer.cpp
index 1ed598b043..f0ede2d7d0 100644
--- a/Source/Core/VideoBackends/OGL/StreamBuffer.cpp
+++ b/Source/Core/VideoBackends/OGL/StreamBuffer.cpp
@@ -261,8 +261,8 @@ public:
   PinnedMemory(u32 type, u32 size) : StreamBuffer(type, size)
   {
     CreateFences();
-    m_pointer =
-        (u8*)AllocateAlignedMemory(ROUND_UP(m_size, ALIGN_PINNED_MEMORY), ALIGN_PINNED_MEMORY);
+    m_pointer = static_cast<u8*>(
+        Common::AllocateAlignedMemory(ROUND_UP(m_size, ALIGN_PINNED_MEMORY), ALIGN_PINNED_MEMORY));
     glBindBuffer(GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD, m_buffer);
     glBufferData(GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD, ROUND_UP(m_size, ALIGN_PINNED_MEMORY),
                  m_pointer, GL_STREAM_COPY);
@@ -275,7 +275,7 @@ public:
     DeleteFences();
     glBindBuffer(m_buffertype, 0);
     glFinish();  // ogl pipeline must be flushed, else this buffer can be in use
-    FreeAlignedMemory(m_pointer);
+    Common::FreeAlignedMemory(m_pointer);
     m_pointer = nullptr;
   }
 
diff --git a/Source/Core/VideoCommon/Fifo.cpp b/Source/Core/VideoCommon/Fifo.cpp
index 504a274157..fbf22faea7 100644
--- a/Source/Core/VideoCommon/Fifo.cpp
+++ b/Source/Core/VideoCommon/Fifo.cpp
@@ -106,7 +106,7 @@ void PauseAndLock(bool doLock, bool unpauseOnUnlock)
 void Init()
 {
   // Padded so that SIMD overreads in the vertex loader are safe
-  s_video_buffer = (u8*)AllocateMemoryPages(FIFO_SIZE + 4);
+  s_video_buffer = static_cast<u8*>(Common::AllocateMemoryPages(FIFO_SIZE + 4));
   ResetVideoBuffer();
   if (SConfig::GetInstance().bCPUThread)
     s_gpu_mainloop.Prepare();
@@ -118,7 +118,7 @@ void Shutdown()
   if (s_gpu_mainloop.IsRunning())
     PanicAlert("Fifo shutting down while active");
 
-  FreeMemoryPages(s_video_buffer, FIFO_SIZE + 4);
+  Common::FreeMemoryPages(s_video_buffer, FIFO_SIZE + 4);
   s_video_buffer = nullptr;
   s_video_buffer_write_ptr = nullptr;
   s_video_buffer_pp_read_ptr = nullptr;
diff --git a/Source/Core/VideoCommon/HiresTextures.cpp b/Source/Core/VideoCommon/HiresTextures.cpp
index 400596121b..56798d006e 100644
--- a/Source/Core/VideoCommon/HiresTextures.cpp
+++ b/Source/Core/VideoCommon/HiresTextures.cpp
@@ -141,7 +141,7 @@ void HiresTexture::Prefetch()
   Common::SetCurrentThreadName("Prefetcher");
 
   size_t size_sum = 0;
-  size_t sys_mem = MemPhysical();
+  size_t sys_mem = Common::MemPhysical();
   size_t recommended_min_mem = 2 * size_t(1024 * 1024 * 1024);
   // keep 2GB memory for system stability if system RAM is 4GB+ - use half of memory in other cases
   size_t max_mem =
diff --git a/Source/Core/VideoCommon/TextureCacheBase.cpp b/Source/Core/VideoCommon/TextureCacheBase.cpp
index 94095ecf95..1cc0e3635e 100644
--- a/Source/Core/VideoCommon/TextureCacheBase.cpp
+++ b/Source/Core/VideoCommon/TextureCacheBase.cpp
@@ -63,15 +63,15 @@ void TextureCacheBase::CheckTempSize(size_t required_size)
     return;
 
   temp_size = required_size;
-  FreeAlignedMemory(temp);
-  temp = (u8*)AllocateAlignedMemory(temp_size, 16);
+  Common::FreeAlignedMemory(temp);
+  temp = static_cast<u8*>(Common::AllocateAlignedMemory(temp_size, 16));
 }
 
 TextureCacheBase::TextureCacheBase()
 {
   temp_size = 2048 * 2048 * 4;
   if (!temp)
-    temp = (u8*)AllocateAlignedMemory(temp_size, 16);
+    temp = static_cast<u8*>(Common::AllocateAlignedMemory(temp_size, 16));
 
   TexDecoder_SetTexFmtOverlayOptions(g_ActiveConfig.bTexFmtOverlayEnable,
                                      g_ActiveConfig.bTexFmtOverlayCenter);
@@ -103,7 +103,7 @@ TextureCacheBase::~TextureCacheBase()
 {
   HiresTexture::Shutdown();
   Invalidate();
-  FreeAlignedMemory(temp);
+  Common::FreeAlignedMemory(temp);
   temp = nullptr;
 }
 
diff --git a/Source/UnitTests/Core/PageFaultTest.cpp b/Source/UnitTests/Core/PageFaultTest.cpp
index 63990f7a6f..7a1e25885a 100644
--- a/Source/UnitTests/Core/PageFaultTest.cpp
+++ b/Source/UnitTests/Core/PageFaultTest.cpp
@@ -38,7 +38,7 @@ public:
   virtual bool HandleFault(uintptr_t access_address, SContext* ctx) override
   {
     m_pre_unprotect_time = std::chrono::high_resolution_clock::now();
-    UnWriteProtectMemory(m_data, PAGE_GRAN, /*allowExecute*/ false);
+    Common::UnWriteProtectMemory(m_data, PAGE_GRAN, /*allowExecute*/ false);
     m_post_unprotect_time = std::chrono::high_resolution_clock::now();
     return true;
   }
@@ -51,9 +51,9 @@ public:
 TEST(PageFault, PageFault)
 {
   EMM::InstallExceptionHandler();
-  void* data = AllocateMemoryPages(PAGE_GRAN);
+  void* data = Common::AllocateMemoryPages(PAGE_GRAN);
   EXPECT_NE(data, nullptr);
-  WriteProtectMemory(data, PAGE_GRAN, false);
+  Common::WriteProtectMemory(data, PAGE_GRAN, false);
 
   PageFaultFakeJit pfjit;
   jit = &pfjit;