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Services/GSP: Assign a thread id to each connected session when the session is created.

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Most applications call AcquireRight before calling RegisterInterruptRelayQueue so we can't assign the thread id there.
This fixes the bug with LLE applets not launching properly.
This commit is contained in:
Subv 2018-01-02 12:07:26 -05:00
parent fbef978b98
commit d17f148e48
2 changed files with 24 additions and 9 deletions
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26
src/core/hle/service/gsp/gsp_gpu.cpp
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@ -53,6 +53,17 @@ constexpr ResultCode ERR_REGS_INVALID_SIZE(ErrorDescription::InvalidSize, ErrorM
/// Maximum number of threads that can be registered at the same time in the GSP module.
constexpr u32 MaxGSPThreads = 4;
/// Thread ids currently in use by the sessions connected to the GSPGPU service.
static std::array<bool, MaxGSPThreads> used_thread_ids = {false, false, false, false};
static u32 GetUnusedThreadId() {
for (u32 id = 0; id < MaxGSPThreads; ++id) {
if (!used_thread_ids[id])
return id;
}
ASSERT_MSG(false, "All GSP threads are in use");
}
/// Gets a pointer to a thread command buffer in GSP shared memory
static inline u8* GetCommandBuffer(Kernel::SharedPtr<Kernel::SharedMemory> shared_memory,
u32 thread_id) {
@ -327,11 +338,7 @@ void GSP_GPU::RegisterInterruptRelayQueue(Kernel::HLERequestContext& ctx) {
interrupt_event->name = "GSP_GSP_GPU::interrupt_event";
u32 thread_id = next_thread_id++;
ASSERT_MSG(thread_id < MaxGSPThreads, "GSP thread id overflow");
SessionData* session_data = GetSessionData(ctx.Session());
session_data->thread_id = thread_id;
session_data->interrupt_event = std::move(interrupt_event);
session_data->registered = true;
@ -345,7 +352,7 @@ void GSP_GPU::RegisterInterruptRelayQueue(Kernel::HLERequestContext& ctx) {
rb.Push(RESULT_SUCCESS);
}
rb.Push(thread_id);
rb.Push(session_data->thread_id);
rb.PushCopyObjects(shared_memory);
LOG_DEBUG(Service_GSP, "called, flags=0x%08X", flags);
@ -752,5 +759,14 @@ GSP_GPU::GSP_GPU() : ServiceFramework("gsp::Gpu", 2) {
first_initialization = true;
};
SessionData::SessionData() {
// Assign a new thread id to this session when it connects. Note: In the real GSP service this
// is done through a real thread (svcCreateThread) but we have to simulate it since our HLE
// services don't have threads.
thread_id = GetUnusedThreadId();
used_thread_ids[thread_id] = true;
}
} // namespace GSP
} // namespace Service

7
src/core/hle/service/gsp/gsp_gpu.h
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@ -180,10 +180,12 @@ struct CommandBuffer {
static_assert(sizeof(CommandBuffer) == 0x200, "CommandBuffer struct has incorrect size");
struct SessionData : public Kernel::SessionRequestHandler::SessionDataBase {
SessionData();
/// Event triggered when GSP interrupt has been signalled
Kernel::SharedPtr<Kernel::Event> interrupt_event;
/// Thread index into interrupt relay queue
u32 thread_id = 0;
u32 thread_id;
/// Whether RegisterInterruptRelayQueue was called for this session
bool registered = false;
};
@ -363,9 +365,6 @@ private:
/// Returns the session data for the specified registered thread id, or nullptr if not found.
SessionData* FindRegisteredThreadData(u32 thread_id);
/// Next threadid value to use when RegisterInterruptRelayQueue is called.
u32 next_thread_id = 0;
/// GSP shared memory
Kernel::SharedPtr<Kernel::SharedMemory> shared_memory;