[GSP] Add interrupt relay event

include/services/gsp_gpu.hpp

@@ -1,5 +1,6 @@
 #pragma once
 #include <cstring>
+#include <optional>
 #include "PICA/gpu.hpp"
 #include "helpers.hpp"
 #include "kernel_types.hpp"
@@ -16,16 +17,21 @@ enum class GPUInterrupt : u8 {
 	DMA = 6
 };
 
+// More circular dependencies
+class Kernel;
+
 class GPUService {
 	Handle handle = KernelHandles::GPU;
 	Memory& mem;
 	GPU& gpu;
+	Kernel& kernel;
 	u32& currentPID; // Process ID of the current process
 	u8* sharedMem; // Pointer to GSP shared memory
 
 	// At any point in time only 1 process has privileges to use rendering functions
 	// This is the PID of that process
 	u32 privilegedProcess;
+	std::optional<Handle> interruptEvent;
 
 	MAKE_LOG_FUNCTION(log, gspGPULogger)
 	void processCommandBuffer();
@@ -51,7 +57,8 @@ class GPUService {
 	void flushCacheRegions(u32* cmd);
 
 public:
-	GPUService(Memory& mem, GPU& gpu, u32& currentPID) : mem(mem), gpu(gpu), currentPID(currentPID) {}
+	GPUService(Memory& mem, GPU& gpu, Kernel& kernel, u32& currentPID) : mem(mem), gpu(gpu),
+		kernel(kernel), currentPID(currentPID) {}
 	void reset();
 	void handleSyncRequest(u32 messagePointer);
 	void requestInterrupt(GPUInterrupt type);