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	GPU: Implement GPU Clock correctly.
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		 Fernando Sahmkow
					Fernando Sahmkow
				
			
				
					committed by
					
						 FernandoS27
						FernandoS27
					
				
			
			
				
	
			
			
			 FernandoS27
						FernandoS27
					
				
			
						parent
						
							0cb3bcfbb7
						
					
				
				
					commit
					8e9a4944db
				
			| @@ -9,6 +9,7 @@ | ||||
| #include "core/core_timing.h" | ||||
| #include "video_core/engines/maxwell_3d.h" | ||||
| #include "video_core/engines/shader_type.h" | ||||
| #include "video_core/gpu.h" | ||||
| #include "video_core/memory_manager.h" | ||||
| #include "video_core/rasterizer_interface.h" | ||||
| #include "video_core/textures/texture.h" | ||||
| @@ -533,7 +534,7 @@ void Maxwell3D::StampQueryResult(u64 payload, bool long_query) { | ||||
|         LongQueryResult query_result{}; | ||||
|         query_result.value = payload; | ||||
|         // TODO(Subv): Generate a real GPU timestamp and write it here instead of CoreTiming | ||||
|         query_result.timestamp = system.CoreTiming().GetTicks(); | ||||
|         query_result.timestamp = system.GPU().GetTicks(); | ||||
|         memory_manager.WriteBlock(sequence_address, &query_result, sizeof(query_result)); | ||||
|     } else { | ||||
|         memory_manager.Write<u32>(sequence_address, static_cast<u32>(payload)); | ||||
|   | ||||
| @@ -6,6 +6,7 @@ | ||||
| #include "common/microprofile.h" | ||||
| #include "core/core.h" | ||||
| #include "core/core_timing.h" | ||||
| #include "core/core_timing_util.h" | ||||
| #include "core/memory.h" | ||||
| #include "video_core/engines/fermi_2d.h" | ||||
| #include "video_core/engines/kepler_compute.h" | ||||
| @@ -122,6 +123,17 @@ bool GPU::CancelSyncptInterrupt(const u32 syncpoint_id, const u32 value) { | ||||
|     return true; | ||||
| } | ||||
|  | ||||
| // This values were reversed engineered by fincs from NVN | ||||
| // The gpu clock is reported in units of 385/625 nanoseconds | ||||
| constexpr u64 gpu_ticks_num = 384; | ||||
| constexpr u64 gpu_ticks_den = 625; | ||||
|  | ||||
| u64 GPU::GetTicks() const { | ||||
|     const u64 cpu_ticks = system.CoreTiming().GetTicks(); | ||||
|     const u64 nanoseconds = Core::Timing::CyclesToNs(cpu_ticks).count(); | ||||
|     return (nanoseconds * gpu_ticks_num) / gpu_ticks_den; | ||||
| } | ||||
|  | ||||
| void GPU::FlushCommands() { | ||||
|     renderer.Rasterizer().FlushCommands(); | ||||
| } | ||||
| @@ -340,7 +352,7 @@ void GPU::ProcessSemaphoreTriggerMethod() { | ||||
|         block.sequence = regs.semaphore_sequence; | ||||
|         // TODO(Kmather73): Generate a real GPU timestamp and write it here instead of | ||||
|         // CoreTiming | ||||
|         block.timestamp = system.CoreTiming().GetTicks(); | ||||
|         block.timestamp = GetTicks(); | ||||
|         memory_manager->WriteBlock(regs.semaphore_address.SemaphoreAddress(), &block, | ||||
|                                    sizeof(block)); | ||||
|     } else { | ||||
|   | ||||
| @@ -192,6 +192,8 @@ public: | ||||
|  | ||||
|     bool CancelSyncptInterrupt(u32 syncpoint_id, u32 value); | ||||
|  | ||||
|     u64 GetTicks() const; | ||||
|  | ||||
|     std::unique_lock<std::mutex> LockSync() { | ||||
|         return std::unique_lock{sync_mutex}; | ||||
|     } | ||||
|   | ||||
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