diff --git a/plugins/GSdx/GPULocalMemory.cpp b/plugins/GSdx/GPULocalMemory.cpp
index 589319a3e7..7f330ccd4c 100644
--- a/plugins/GSdx/GPULocalMemory.cpp
+++ b/plugins/GSdx/GPULocalMemory.cpp
@@ -26,7 +26,11 @@
 const GSVector4i GPULocalMemory::m_xxxa(0x00008000);
 const GSVector4i GPULocalMemory::m_xxbx(0x00007c00);
 const GSVector4i GPULocalMemory::m_xgxx(0x000003e0);
-const GSVector4i GPULocalMemory::m_rxxx(0x0000001f);
+const GSVector4i GPULocalMemory::m_rxxx(0x0000001f);
+
+#define VM_SIZE ((1 << (12 + 11)) * sizeof(uint16))
+#define VM_ALLOC_SIZE (VM_SIZE * 2)
+#define TEX_ALLOC_SIZE (256 * 256 * (1 + 1 + 4) * 32)
 
 GPULocalMemory::GPULocalMemory()
 {
@@ -35,9 +39,9 @@ GPULocalMemory::GPULocalMemory()
 
 	//
 
-	int size = (1 << (12 + 11)) * sizeof(uint16);
+	int size = VM_SIZE;
 
-	m_vm = (uint16*)vmalloc(size * 2, false);
+	m_vm = (uint16*)vmalloc(VM_ALLOC_SIZE, false);
 
 	memset(m_vm, 0, size);
 
@@ -48,7 +52,7 @@ GPULocalMemory::GPULocalMemory()
 
 	//
 
-	size = 256 * 256 * (1 + 1 + 4) * 32;
+	size = TEX_ALLOC_SIZE;
 
 	m_texture.buff[0] = (uint8*)vmalloc(size, false);
 	m_texture.buff[1] = m_texture.buff[0] + 256 * 256 * 32;
@@ -78,9 +82,9 @@ GPULocalMemory::GPULocalMemory()
 
 GPULocalMemory::~GPULocalMemory()
 {
-	vmfree(m_vm);
+	vmfree(m_vm, VM_ALLOC_SIZE);
 
-	vmfree(m_texture.buff[0]);
+	vmfree(m_texture.buff[0], TEX_ALLOC_SIZE);
 }
 
 const uint16* GPULocalMemory::GetCLUT(int tp, int cx, int cy)
diff --git a/plugins/GSdx/GSClut.cpp b/plugins/GSdx/GSClut.cpp
index a9d93d23a7..e223b72cb6 100644
--- a/plugins/GSdx/GSClut.cpp
+++ b/plugins/GSdx/GSClut.cpp
@@ -23,10 +23,12 @@
 #include "GSClut.h"
 #include "GSLocalMemory.h"
 
+#define CLUT_ALLOC_SIZE (2 * 4096)
+
 GSClut::GSClut(GSLocalMemory* mem)
 	: m_mem(mem)
 {
-	uint8* p = (uint8*)vmalloc(2 * 4096, false);
+	uint8* p = (uint8*)vmalloc(CLUT_ALLOC_SIZE, false);
 
 	m_clut = (uint16*)&p[0]; // 1k + 1k for buffer overruns (sfex: PSM == PSM_PSMT8, CPSM == PSM_PSMCT32, CSA != 0)
 	m_buff32 = (uint32*)&p[2048]; // 1k
@@ -88,7 +90,7 @@ GSClut::GSClut(GSLocalMemory* mem)
 
 GSClut::~GSClut()
 {
-	vmfree(m_clut);
+	vmfree(m_clut, CLUT_ALLOC_SIZE);
 }
 
 void GSClut::Invalidate()
diff --git a/plugins/GSdx/GSCodeBuffer.cpp b/plugins/GSdx/GSCodeBuffer.cpp
index 66fcedc291..3cd27ce7b7 100644
--- a/plugins/GSdx/GSCodeBuffer.cpp
+++ b/plugins/GSdx/GSCodeBuffer.cpp
@@ -34,7 +34,7 @@ GSCodeBuffer::~GSCodeBuffer()
 {
 	for(list<void*>::iterator i = m_buffers.begin(); i != m_buffers.end(); i++)
 	{
-		vmfree(*i);
+		vmfree(*i, m_blocksize);
 	}
 }
 
diff --git a/plugins/GSdx/GSLocalMemory.cpp b/plugins/GSdx/GSLocalMemory.cpp
index b0421ed93a..8525350843 100644
--- a/plugins/GSdx/GSLocalMemory.cpp
+++ b/plugins/GSdx/GSLocalMemory.cpp
@@ -442,7 +442,7 @@ GSLocalMemory::GSLocalMemory()
 
 GSLocalMemory::~GSLocalMemory()
 {
-	vmfree(m_vm8);
+	vmfree(m_vm8, m_vmsize * 2);
 
 	for_each(m_omap.begin(), m_omap.end(), aligned_free_second());
 	for_each(m_po4map.begin(), m_po4map.end(), aligned_free_second());
diff --git a/plugins/GSdx/GSThread.h b/plugins/GSdx/GSThread.h
index dd37a3857b..b14fc6708f 100644
--- a/plugins/GSdx/GSThread.h
+++ b/plugins/GSdx/GSThread.h
@@ -70,6 +70,7 @@ public:
 #else
 
 #include <pthread.h>
+#include <semaphore.h>
 
 class GSThread
 {
@@ -116,47 +117,14 @@ public:
 class GSAutoResetEvent
 {
 protected:
-    pthread_mutexattr_t m_mutex_attr;
-    pthread_mutex_t m_mutex;
-    pthread_cond_t m_cond;
-    pthread_condattr_t m_cond_attr;
+    sem_t m_sem;
 
 public:
-    GSAutoResetEvent()
-    {
-        pthread_mutexattr_settype(&m_mutex_attr, PTHREAD_MUTEX_FAST_NP);
-        pthread_mutex_init(&m_mutex, &m_mutex_attr);
-        pthread_condattr_init(&m_cond_attr);
-        pthread_cond_init(&m_cond, &m_cond_attr);
-    }
+    GSAutoResetEvent() {sem_init(&m_sem, 0, 0);}
+    ~GSAutoResetEvent() {sem_destroy(&m_sem);}
 
-    ~GSAutoResetEvent()
-    {
-        pthread_mutex_destroy(&m_mutex);
-        pthread_mutexattr_destroy(&m_mutex_attr);
-        pthread_cond_destroy(&m_cond);
-        pthread_condattr_destroy(&m_cond_attr);
-    }
-
-    void Set()
-    {
-        int ret;
-
-        pthread_mutex_lock(&m_mutex);
-        pthread_cond_signal(&m_cond);
-        pthread_mutex_unlock(&m_mutex);
-    }
-
-    bool Wait()
-    {
-        int ret;
-
-        pthread_mutex_lock(&m_mutex);
-        ret = pthread_cond_wait(&m_cond, &m_mutex);
-        pthread_mutex_unlock(&m_mutex);
-
-        return ret == 0;
-    }
+    void Set() {sem_post(&m_sem);}
+    bool Wait() {return sem_wait(&m_sem) == 0;}
 };
 
 #endif
diff --git a/plugins/GSdx/GSWnd.cpp b/plugins/GSdx/GSWnd.cpp
index 1dececffa1..313d1b1068 100644
--- a/plugins/GSdx/GSWnd.cpp
+++ b/plugins/GSdx/GSWnd.cpp
@@ -194,6 +194,8 @@ GSVector4i GSWnd::GetClientRect()
 
     r = GSVector4i::zero();
 
+    // TODO: linux
+
 #endif
 
 	return r;
@@ -225,13 +227,13 @@ void GSWnd::Show()
 
 #ifdef _WINDOWS
 
-	//SetWindowPos(&wndTop, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE);
+    HWND hWnd = (HWND)m_hWnd;
 
-	SetForegroundWindow((HWND)m_hWnd);
+	SetForegroundWindow(hWnd);
 
-	ShowWindow((HWND)m_hWnd, SW_SHOWNORMAL);
+	ShowWindow(hWnd, SW_SHOWNORMAL);
 
-	UpdateWindow((HWND)m_hWnd);
+	UpdateWindow(hWnd);
 
 #else
 
diff --git a/plugins/GSdx/GSdx.gcc.cbp b/plugins/GSdx/GSdx.gcc.cbp
index e07132f0c5..72eca79dad 100644
--- a/plugins/GSdx/GSdx.gcc.cbp
+++ b/plugins/GSdx/GSdx.gcc.cbp
@@ -15,7 +15,6 @@
 				<Option createStaticLib="1" />
 				<Compiler>
 					<Add option="-g" />
-					<Add option="-fno-operator-names" />
 				</Compiler>
 			</Target>
 			<Target title="Release">
@@ -32,6 +31,7 @@
 		</Build>
 		<Compiler>
 			<Add option="-march=pentium4" />
+			<Add option="-fno-operator-names" />
 			<Add option="-D_LINUX" />
 		</Compiler>
 		<Unit filename="GPU.cpp" />
diff --git a/plugins/GSdx/stdafx.cpp b/plugins/GSdx/stdafx.cpp
index 304e966cd0..843588ce8c 100644
--- a/plugins/GSdx/stdafx.cpp
+++ b/plugins/GSdx/stdafx.cpp
@@ -38,26 +38,49 @@ string format(const char* fmt, ...)
 	return s;
 }
 
+#ifdef _WINDOWS
+
 void* vmalloc(size_t size, bool code)
 {
-#ifdef _WINDOWS
     return VirtualAlloc(NULL, size, MEM_COMMIT | MEM_RESERVE, code ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE);
-#else
-    // TODO: linux
-    return malloc(size);
-#endif
 }
 
-void vmfree(void* ptr)
+void vmfree(void* ptr, size_t size)
 {
-#ifdef _WINDOWS
-    VirtualFree(ptr, 0, MEM_RELEASE);
-#else
-    // TODO: linux
-    free(ptr);
-#endif
+    VirtualFree(ptr, size, MEM_RELEASE);
 }
 
+#else
+
+#include <sys/mman.h>
+
+void* vmalloc(size_t size, bool code)
+{
+    size_t mask = getpagesize() - 1;
+
+    size = (size + mask) & ~mask;
+
+    int flags = PROT_READ | PROT_WRITE;
+
+    if(code)
+    {
+        flags |= PROT_EXEC;
+    }
+
+    return mmap(NULL, size, flags, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+}
+
+void vmfree(void* ptr, size_t size)
+{
+    size_t mask = getpagesize() - 1;
+
+    size = (size + mask) & ~mask;
+
+    munmap(ptr, size);
+}
+
+#endif
+
 #if !defined(_MSC_VER) && !defined(HAVE_ALIGNED_MALLOC)
 
 // declare linux equivalents (alignment must be power of 2 (1,2,4...2^15)
diff --git a/plugins/GSdx/stdafx.h b/plugins/GSdx/stdafx.h
index de4fac58f7..bd7a7a175d 100644
--- a/plugins/GSdx/stdafx.h
+++ b/plugins/GSdx/stdafx.h
@@ -307,4 +307,4 @@ __forceinline unsigned long long __rdtsc()
 #endif
 
 extern void* vmalloc(size_t size, bool code);
-extern void vmfree(void* ptr);
+extern void vmfree(void* ptr, size_t size);