void RunGpu() { if (SConfig::GetInstance().m_LocalCoreStartupParameter.bCPUThread && !g_use_deterministic_gpu_thread) return; SCPFifoStruct &fifo = CommandProcessor::fifo; while (fifo.bFF_GPReadEnable && fifo.CPReadWriteDistance && !AtBreakpoint() ) { if (g_use_deterministic_gpu_thread) { ReadDataFromFifoOnCPU(fifo.CPReadPointer); } else { FPURoundMode::SaveSIMDState(); FPURoundMode::LoadDefaultSIMDState(); ReadDataFromFifo(fifo.CPReadPointer); s_video_buffer_read_ptr = OpcodeDecoder_Run(DataReader(s_video_buffer_read_ptr, s_video_buffer_write_ptr), nullptr, false); FPURoundMode::LoadSIMDState(); } //DEBUG_LOG(COMMANDPROCESSOR, "Fifo wraps to base"); if (fifo.CPReadPointer == fifo.CPEnd) fifo.CPReadPointer = fifo.CPBase; else fifo.CPReadPointer += 32; fifo.CPReadWriteDistance -= 32; } CommandProcessor::SetCPStatusFromGPU(); }
static int RunGpuOnCpu(int ticks) { SCPFifoStruct& fifo = CommandProcessor::fifo; bool reset_simd_state = false; int available_ticks = int(ticks * SConfig::GetInstance().fSyncGpuOverclock) + s_sync_ticks.load(); while (fifo.bFF_GPReadEnable && fifo.CPReadWriteDistance && !AtBreakpoint() && available_ticks >= 0) { if (s_use_deterministic_gpu_thread) { ReadDataFromFifoOnCPU(fifo.CPReadPointer); s_gpu_mainloop.Wakeup(); } else { if (!reset_simd_state) { FPURoundMode::SaveSIMDState(); FPURoundMode::LoadDefaultSIMDState(); reset_simd_state = true; } ReadDataFromFifo(fifo.CPReadPointer); u32 cycles = 0; s_video_buffer_read_ptr = OpcodeDecoder::Run( DataReader(s_video_buffer_read_ptr, s_video_buffer_write_ptr), &cycles, false); available_ticks -= cycles; } if (fifo.CPReadPointer == fifo.CPEnd) fifo.CPReadPointer = fifo.CPBase; else fifo.CPReadPointer += 32; fifo.CPReadWriteDistance -= 32; } CommandProcessor::SetCPStatusFromGPU(); if (reset_simd_state) { FPURoundMode::LoadSIMDState(); } // Discard all available ticks as there is nothing to do any more. s_sync_ticks.store(std::min(available_ticks, 0)); // If the GPU is idle, drop the handler. if (available_ticks >= 0) return -1; // Always wait at least for GPU_TIME_SLOT_SIZE cycles. return -available_ticks + GPU_TIME_SLOT_SIZE; }
void RunGpu() { SCPFifoStruct &fifo = CommandProcessor::fifo; const SConfig& param = SConfig::GetInstance(); // execute GPU if (!param.bCPUThread || g_use_deterministic_gpu_thread) { bool reset_simd_state = false; while (fifo.bFF_GPReadEnable && fifo.CPReadWriteDistance && !AtBreakpoint() ) { if (g_use_deterministic_gpu_thread) { ReadDataFromFifoOnCPU(fifo.CPReadPointer); s_gpu_mainloop.Wakeup(); } else { if (!reset_simd_state) { FPURoundMode::SaveSIMDState(); FPURoundMode::LoadDefaultSIMDState(); reset_simd_state = true; } ReadDataFromFifo(fifo.CPReadPointer); s_video_buffer_read_ptr = OpcodeDecoder_Run(DataReader(s_video_buffer_read_ptr, s_video_buffer_write_ptr), nullptr, false); } //DEBUG_LOG(COMMANDPROCESSOR, "Fifo wraps to base"); if (fifo.CPReadPointer == fifo.CPEnd) fifo.CPReadPointer = fifo.CPBase; else fifo.CPReadPointer += 32; fifo.CPReadWriteDistance -= 32; } CommandProcessor::SetCPStatusFromGPU(); if (reset_simd_state) { FPURoundMode::LoadSIMDState(); } } // wake up GPU thread if (param.bCPUThread) { s_gpu_mainloop.Wakeup(); } }