Merge pull request #740 from yuriks/gsp-shmem

Fix crashes due to un-initialized GSP shared memory

4 files changed, 27 insertions, 17 deletions

diff --git a/src/core/hle/service/apt/apt.cpp b/src/core/hle/service/apt/apt.cpp
index 560c9dcf6..09d463dd5 100644
--- a/src/core/hle/service/apt/apt.cpp
+++ b/src/core/hle/service/apt/apt.cpp
@@ -304,7 +304,9 @@ void Init() {
         file.ReadBytes(shared_font.data(), (size_t)file.GetSize());
 
         // Create shared font memory object
-        shared_font_mem = Kernel::SharedMemory::Create("APT_U:shared_font_mem");
+        using Kernel::MemoryPermission;
+        shared_font_mem = Kernel::SharedMemory::Create(3 * 1024 * 1024, // 3MB
+                MemoryPermission::ReadWrite, MemoryPermission::Read, "APT_U:shared_font_mem");
     } else {
         LOG_WARNING(Service_APT, "Unable to load shared font: %s", filepath.c_str());
         shared_font_mem = nullptr;
diff --git a/src/core/hle/service/gsp_gpu.cpp b/src/core/hle/service/gsp_gpu.cpp
index 8da063bd2..c6252a03b 100644
--- a/src/core/hle/service/gsp_gpu.cpp
+++ b/src/core/hle/service/gsp_gpu.cpp
@@ -30,13 +30,12 @@ namespace GSP_GPU {
 Kernel::SharedPtr<Kernel::Event> g_interrupt_event;
 /// GSP shared memoryings
 Kernel::SharedPtr<Kernel::SharedMemory> g_shared_memory;
-/// Thread index into interrupt relay queue, 1 is arbitrary
-u32 g_thread_id = 1;
+/// Thread index into interrupt relay queue
+u32 g_thread_id = 0;
 
 /// Gets a pointer to a thread command buffer in GSP shared memory
 static inline u8* GetCommandBuffer(u32 thread_id) {
-    ResultVal<u8*> ptr = g_shared_memory->GetPointer(0x800 + (thread_id * sizeof(CommandBuffer)));
-    return ptr.ValueOr(nullptr);
+    return g_shared_memory->GetPointer(0x800 + (thread_id * sizeof(CommandBuffer)));
 }
 
 static inline FrameBufferUpdate* GetFrameBufferInfo(u32 thread_id, u32 screen_index) {
@@ -44,14 +43,14 @@ static inline FrameBufferUpdate* GetFrameBufferInfo(u32 thread_id, u32 screen_in
 
     // For each thread there are two FrameBufferUpdate fields
     u32 offset = 0x200 + (2 * thread_id + screen_index) * sizeof(FrameBufferUpdate);
-    ResultVal<u8*> ptr = g_shared_memory->GetPointer(offset);
-    return reinterpret_cast<FrameBufferUpdate*>(ptr.ValueOr(nullptr));
+    u8* ptr = g_shared_memory->GetPointer(offset);
+    return reinterpret_cast<FrameBufferUpdate*>(ptr);
 }
 
 /// Gets a pointer to the interrupt relay queue for a given thread index
 static inline InterruptRelayQueue* GetInterruptRelayQueue(u32 thread_id) {
-    ResultVal<u8*> ptr = g_shared_memory->GetPointer(sizeof(InterruptRelayQueue) * thread_id);
-    return reinterpret_cast<InterruptRelayQueue*>(ptr.ValueOr(nullptr));
+    u8* ptr = g_shared_memory->GetPointer(sizeof(InterruptRelayQueue) * thread_id);
+    return reinterpret_cast<InterruptRelayQueue*>(ptr);
 }
 
 /**
@@ -278,7 +277,7 @@ static void FlushDataCache(Service::Interface* self) {
  *      1 : "Flags" field, purpose is unknown
  *      3 : Handle to GSP synchronization event
  *  Outputs:
- *      0 : Result of function, 0 on success, otherwise error code
+ *      1 : Result of function, 0x2A07 on success, otherwise error code
  *      2 : Thread index into GSP command buffer
  *      4 : Handle to GSP shared memory
  */
@@ -288,11 +287,12 @@ static void RegisterInterruptRelayQueue(Service::Interface* self) {
 
     g_interrupt_event = Kernel::g_handle_table.Get<Kernel::Event>(cmd_buff[3]);
     ASSERT_MSG((g_interrupt_event != nullptr), "handle is not valid!");
-    g_shared_memory = Kernel::SharedMemory::Create("GSPSharedMem");
 
     Handle shmem_handle = Kernel::g_handle_table.Create(g_shared_memory).MoveFrom();
 
-    cmd_buff[1] = 0x2A07; // Value verified by 3dmoo team, purpose unknown, but needed for GSP init
+    // This specific code is required for a successful initialization, rather than 0
+    cmd_buff[1] = ResultCode((ErrorDescription)519, ErrorModule::GX,
+                             ErrorSummary::Success, ErrorLevel::Success).raw;
     cmd_buff[2] = g_thread_id++; // Thread ID
     cmd_buff[4] = shmem_handle; // GSP shared memory
 
@@ -527,8 +527,12 @@ Interface::Interface() {
     Register(FunctionTable);
 
     g_interrupt_event = 0;
-    g_shared_memory = 0;
-    g_thread_id = 1;
+
+    using Kernel::MemoryPermission;
+    g_shared_memory = Kernel::SharedMemory::Create(0x1000, MemoryPermission::ReadWrite,
+            MemoryPermission::ReadWrite, "GSPSharedMem");
+
+    g_thread_id = 0;
 }
 
 } // namespace
diff --git a/src/core/hle/service/hid/hid.cpp b/src/core/hle/service/hid/hid.cpp
index dd85848d0..9695f7e56 100644
--- a/src/core/hle/service/hid/hid.cpp
+++ b/src/core/hle/service/hid/hid.cpp
@@ -48,7 +48,7 @@ static u32 next_touch_index;
 //     * Set PadData.current_state.circle_right = 1 if current PadEntry.circle_pad_y <= -41
 
 void Update() {
-    SharedMem* mem = reinterpret_cast<SharedMem*>(shared_mem->GetPointer().ValueOr(nullptr));
+    SharedMem* mem = reinterpret_cast<SharedMem*>(shared_mem->GetPointer());
     const PadState state = VideoCore::g_emu_window->GetPadState();
 
     if (mem == nullptr) {
@@ -163,7 +163,9 @@ void Init() {
     AddService(new HID_U_Interface);
     AddService(new HID_SPVR_Interface);
 
-    shared_mem = SharedMemory::Create("HID:SharedMem");
+    using Kernel::MemoryPermission;
+    shared_mem = SharedMemory::Create(0x1000, MemoryPermission::ReadWrite,
+            MemoryPermission::Read, "HID:SharedMem");
 
     next_pad_index = 0;
     next_touch_index = 0;
diff --git a/src/core/hle/service/ir/ir.cpp b/src/core/hle/service/ir/ir.cpp
index 15ac477ef..adfbb258d 100644
--- a/src/core/hle/service/ir/ir.cpp
+++ b/src/core/hle/service/ir/ir.cpp
@@ -34,7 +34,9 @@ void Init() {
     AddService(new IR_U_Interface);
     AddService(new IR_User_Interface);
 
-    shared_memory = SharedMemory::Create("IR:SharedMemory");
+    using Kernel::MemoryPermission;
+    shared_memory = SharedMemory::Create(0x1000, Kernel::MemoryPermission::ReadWrite,
+            Kernel::MemoryPermission::ReadWrite, "IR:SharedMemory");
 
     // Create event handle(s)
     handle_event  = Event::Create(RESETTYPE_ONESHOT, "IR:HandleEvent");