Implemented SharedMemory Objects

src/core/hle/kernel/shared_memory.cpp

@@ -29,29 +29,70 @@ public:
         // TODO(bravia): ImplementMe
         return 0;
     }
+
+    template <typename T>
+    inline void Read(T &var, const u32 addr);
+
+    template <typename T>
+    inline void Write(T &var, const u32 addr);
+
+    u32 size;
+    u8* mem_ptr = NULL;
 };
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 
 
 
-/**
-* Creates a mutex
-* @param handle Reference to handle for the newly created mutex
-* @param initial_locked Specifies if the mutex should be locked initially
-*/
-SharedMemory* CreateSharedMemory(Handle& handle) {
+SharedMemory* CreateSharedMemory(Handle& handle, u32 size) {
     SharedMemory* mem = new SharedMemory;
     handle = Kernel::g_object_pool.Create(mem);
-
+    mem->size = size;
     return mem;
 }
 
-
-Handle CreateSharedMemory() {
+Handle CreateSharedMemory(u32 size) {
     Handle handle;
-    SharedMemory* mem = CreateSharedMemory(handle);
+    SharedMemory* mem = CreateSharedMemory(handle, size);
     return handle;
 }
 
+u32 GetSharedMemorySize(Handle handle) {
+    SharedMemory* mem = Kernel::g_object_pool.GetFast<SharedMemory>(handle);
+    _assert_msg_(KERNEL, (mem != nullptr), "called, but mem is nullptr!");
+    return mem->size;
+}
+
+void SetSharedMemoryPointer(Handle handle, u8* ptr) {
+    SharedMemory* mem = Kernel::g_object_pool.GetFast<SharedMemory>(handle);
+    _assert_msg_(KERNEL, (mem != nullptr), "called, but mem is nullptr!");
+    mem->mem_ptr = ptr;
+}
+
+template <typename T>
+inline void ReadSharedMemory(Handle handle, T &var, const u32 addr) {
+    SharedMemory* mem = Kernel::g_object_pool.GetFast<SharedMemory>(handle);
+    _assert_msg_(KERNEL, (mem != nullptr), "called, but mem is nullptr!");
+    if (mem->mem_ptr!=NULL)
+        var = *((const T*)&mem->mem_ptr[addr & (mem->size - 1)]);
+}
+
+template <typename T>
+inline void WriteSharedMemory(Handle handle, const T data, const u32 addr) {
+    SharedMemory* mem = Kernel::g_object_pool.GetFast<SharedMemory>(handle);
+    _assert_msg_(KERNEL, (mem != nullptr), "called, but mem is nullptr!");
+    if (mem->mem_ptr != NULL)
+        *(T*)&mem->mem_ptr[addr & (mem->size - 1)] = data;
+}
+
+template void WriteSharedMemory<u64>(Handle handle, const u64 data, const u32 addr);
+template void WriteSharedMemory<u32>(Handle handle, const u32 data, const u32 addr);
+template void WriteSharedMemory<u16>(Handle handle, const u16 data, const u32 addr);
+template void WriteSharedMemory<u8>(Handle handle, const u8 data, const u32 addr);
+
+template void ReadSharedMemory<u64>(Handle handle, u64 &var, const u32 addr);
+template void ReadSharedMemory<u32>(Handle handle, u32 &var, const u32 addr);
+template void ReadSharedMemory<u16>(Handle handle, u16 &var, const u32 addr);
+template void ReadSharedMemory<u8>(Handle handle, u8 &var, const u32 addr);
+
 } // namespace

src/core/hle/kernel/shared_memory.h

@@ -15,6 +15,16 @@ namespace Kernel {
 * @param handle Reference to handle for the newly created mutex
 * @param 
 */
-Handle CreateSharedMemory();
+Handle CreateSharedMemory(u32 size);
+
+u32 GetSharedMemorySize(Handle handle);
+
+void SetSharedMemoryPointer(Handle handle, u8* ptr);
+
+template <typename T>
+inline void ReadSharedMemory(Handle handle, T &var, const u32 addr);
+
+template <typename T>
+inline void WriteSharedMemory(Handle handle, const T data, const u32 addr);
 
 } // namespace

src/core/hle/service/gsp.cpp

@@ -9,6 +9,7 @@
 #include "core/mem_map.h"
 #include "core/hle/hle.h"
 #include "core/hle/kernel/event.h"
+#include "core/hle/kernel/shared_memory.h"
 #include "core/hle/service/gsp.h"
 
 #include "core/hw/gpu.h"
@@ -20,6 +21,9 @@
 // Main graphics debugger object - TODO: Here is probably not the best place for this
 GraphicsDebugger g_debugger;
 
+//Handle to irq memory
+Handle memIRQ;
+
 /// GSP shared memory GX command buffer header
 union GX_CmdBufferHeader {
     u32 hex;
@@ -121,7 +125,9 @@ void RegisterInterruptRelayQueue(Service::Interface* self) {
     Kernel::SetPermanentLock(event_handle, true);
 
     cmd_buff[2] = g_thread_id;          // ThreadID
-    //TODO(bravia): Implement shared memory handling
+    cmd_buff[3] = 0x0;                  //specified to be zero
+    memIRQ = Kernel::CreateSharedMemory(0x1000); //page size for now
+    cmd_buff[4] = memIRQ;
 }
 
 

src/core/hle/service/hid.cpp

@@ -13,10 +13,12 @@
 
 namespace HID_User {
 
+Handle memIPC;
+
 void GetIPCHandles(Service::Interface* self) {
     u32* cmd_buff = Service::GetCommandBuffer();
-    Handle memHandle = Kernel::CreateSharedMemory();
-    cmd_buff[3] = memHandle; //TODO: return something coherent along with RegisterInterruptRelayQueue for mem handles
+    memIPC = Kernel::CreateSharedMemory(0x1000); //page size for now
+    cmd_buff[3] = memIPC; //TODO: return something coherent along with RegisterInterruptRelayQueue for mem handles
 }
 
 const Interface::FunctionInfo FunctionTable[] = {

src/core/mem_map_funcs.cpp

@@ -9,6 +9,8 @@
 #include "core/mem_map.h"
 #include "core/hw/hw.h"
 #include "hle/hle.h"
+#include "hle/kernel/kernel.h"
+#include "hle/kernel/shared_memory.h"
 #include "hle/config_mem.h"
 
 namespace Memory {
@@ -71,8 +73,15 @@ inline void _Read(T &var, const u32 addr) {
 
     // Shared memory
     } else if ((vaddr >= SHARED_MEMORY_VADDR)  && (vaddr < SHARED_MEMORY_VADDR_END)) {
-        var = *((const T*)&g_shared_mem[vaddr & SHARED_MEMORY_MASK]);
-
+        for (std::map<u32, MemoryBlock>::iterator it = g_shared_map.begin(); it != g_shared_map.end(); it++) {
+            MemoryBlock block = it->second;
+            if ((vaddr >= block.base_address) && (vaddr < block.GetVirtualAddress())) {
+                Handle handle = block.handle;
+                Kernel::ReadSharedMemory<T>(handle, var, addr);
+                return;
+            }
+        }
+        ERROR_LOG(MEMMAP, "Read from unknown shared mapping : Read%d @ 0x%08X", sizeof(var) * 8, vaddr);
     // System memory
     } else if ((vaddr >= SYSTEM_MEMORY_VADDR)  && (vaddr < SYSTEM_MEMORY_VADDR_END)) {
         var = *((const T*)&g_system_mem[vaddr & SYSTEM_MEMORY_MASK]);
@@ -117,6 +126,15 @@ inline void _Write(u32 addr, const T data) {
 
     // Shared memory
     } else if ((vaddr >= SHARED_MEMORY_VADDR)  && (vaddr < SHARED_MEMORY_VADDR_END)) {
+        for (std::map<u32, MemoryBlock>::iterator it = g_shared_map.begin(); it != g_shared_map.end(); it++) {
+            MemoryBlock block = it->second;
+            if ((vaddr >= block.base_address) && (vaddr < block.GetVirtualAddress())) {
+                Handle handle = block.handle;
+                Kernel::WriteSharedMemory<T>(handle, data, addr);
+                return;
+            }
+        }
+        ERROR_LOG(MEMMAP, "Write to unknown shared mapping : Write%d 0x%08X @ 0x%08X", sizeof(data) * 8, data, vaddr);
         *(T*)&g_shared_mem[vaddr & SHARED_MEMORY_MASK] = data;
 
     // System memory
@@ -187,6 +205,7 @@ u32 MapBlock_Shared(u32 handle, u32 addr,u32 permissions) {
     MemoryBlock block;
    
     block.handle        = handle;
+    block.size          = Kernel::GetSharedMemorySize(handle);
     block.base_address  = addr;
     block.permissions   = permissions;
     
@@ -194,9 +213,14 @@ u32 MapBlock_Shared(u32 handle, u32 addr,u32 permissions) {
         const MemoryBlock last_block = g_shared_map.rbegin()->second;
         block.address = last_block.address + last_block.size;
     }
-    g_shared_map[block.GetVirtualAddress()] = block;
 
-    return block.GetVirtualAddress();
+    u32 vaddr = block.GetVirtualAddress();
+
+    g_shared_map[vaddr] = block;
+
+    Kernel::SetSharedMemoryPointer(handle, &g_shared_mem[vaddr & SHARED_MEMORY_MASK]);
+
+    return vaddr;
 }
 
 /**