early-access version 2790
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pineappleEA
315
src/video_core/engines/puller.cpp
Executable file
315
src/video_core/engines/puller.cpp
Executable file
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// Copyright 2021 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common/assert.h"
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#include "common/logging/log.h"
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#include "common/settings.h"
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#include "core/core.h"
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#include "video_core/control/channel_state.h"
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#include "video_core/dma_pusher.h"
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#include "video_core/engines/fermi_2d.h"
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#include "video_core/engines/kepler_compute.h"
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#include "video_core/engines/kepler_memory.h"
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#include "video_core/engines/maxwell_3d.h"
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#include "video_core/engines/maxwell_dma.h"
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#include "video_core/engines/puller.h"
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#include "video_core/gpu.h"
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#include "video_core/memory_manager.h"
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#include "video_core/rasterizer_interface.h"
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namespace Tegra::Engines {
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Puller::Puller(GPU& gpu_, MemoryManager& memory_manager_, DmaPusher& dma_pusher_,
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Control::ChannelState& channel_state_)
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: gpu{gpu_}, memory_manager{memory_manager_}, dma_pusher{dma_pusher_}, channel_state{
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channel_state_} {}
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Puller::~Puller() = default;
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void Puller::ProcessBindMethod(const MethodCall& method_call) {
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// Bind the current subchannel to the desired engine id.
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LOG_DEBUG(HW_GPU, "Binding subchannel {} to engine {}", method_call.subchannel,
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method_call.argument);
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const auto engine_id = static_cast<EngineID>(method_call.argument);
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bound_engines[method_call.subchannel] = static_cast<EngineID>(engine_id);
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switch (engine_id) {
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case EngineID::FERMI_TWOD_A:
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dma_pusher.BindSubchannel(channel_state.fermi_2d.get(), method_call.subchannel);
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break;
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case EngineID::MAXWELL_B:
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dma_pusher.BindSubchannel(channel_state.maxwell_3d.get(), method_call.subchannel);
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break;
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case EngineID::KEPLER_COMPUTE_B:
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dma_pusher.BindSubchannel(channel_state.kepler_compute.get(), method_call.subchannel);
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break;
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case EngineID::MAXWELL_DMA_COPY_A:
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dma_pusher.BindSubchannel(channel_state.maxwell_dma.get(), method_call.subchannel);
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break;
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case EngineID::KEPLER_INLINE_TO_MEMORY_B:
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dma_pusher.BindSubchannel(channel_state.kepler_memory.get(), method_call.subchannel);
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break;
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default:
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UNIMPLEMENTED_MSG("Unimplemented engine {:04X}", engine_id);
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}
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}
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void Puller::ProcessFenceActionMethod() {
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switch (regs.fence_action.op) {
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case Puller::FenceOperation::Acquire:
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// UNIMPLEMENTED_MSG("Channel Scheduling pending.");
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// WaitFence(regs.fence_action.syncpoint_id, regs.fence_value);
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rasterizer->ReleaseFences();
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break;
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case Puller::FenceOperation::Increment:
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rasterizer->SignalSyncPoint(regs.fence_action.syncpoint_id);
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break;
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default:
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UNIMPLEMENTED_MSG("Unimplemented operation {}", regs.fence_action.op.Value());
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}
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}
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void Puller::ProcessSemaphoreTriggerMethod() {
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const auto semaphoreOperationMask = 0xF;
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const auto op =
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static_cast<GpuSemaphoreOperation>(regs.semaphore_trigger & semaphoreOperationMask);
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if (op == GpuSemaphoreOperation::WriteLong) {
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struct Block {
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u32 sequence;
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u32 zeros = 0;
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u64 timestamp;
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};
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const GPUVAddr sequence_address{regs.semaphore_address.SemaphoreAddress()};
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const u32 payload = regs.semaphore_sequence;
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std::function<void()> operation([this, sequence_address, payload] {
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Block block{};
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block.sequence = payload;
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block.timestamp = gpu.GetTicks();
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memory_manager.WriteBlockUnsafe(sequence_address, &block, sizeof(block));
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});
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rasterizer->SyncOperation(std::move(operation));
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} else {
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do {
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const u32 word{memory_manager.Read<u32>(regs.semaphore_address.SemaphoreAddress())};
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regs.acquire_source = true;
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regs.acquire_value = regs.semaphore_sequence;
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if (op == GpuSemaphoreOperation::AcquireEqual) {
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regs.acquire_active = true;
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regs.acquire_mode = false;
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if (word != regs.acquire_value) {
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rasterizer->ReleaseFences();
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continue;
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}
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} else if (op == GpuSemaphoreOperation::AcquireGequal) {
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regs.acquire_active = true;
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regs.acquire_mode = true;
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if (word < regs.acquire_value) {
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rasterizer->ReleaseFences();
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continue;
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}
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} else if (op == GpuSemaphoreOperation::AcquireMask) {
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if (word && regs.semaphore_sequence == 0) {
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rasterizer->ReleaseFences();
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continue;
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}
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} else {
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LOG_ERROR(HW_GPU, "Invalid semaphore operation");
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}
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} while (false);
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}
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}
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void Puller::ProcessSemaphoreRelease() {
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const GPUVAddr sequence_address{regs.semaphore_address.SemaphoreAddress()};
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const u32 payload = regs.semaphore_release;
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std::function<void()> operation([this, sequence_address, payload] {
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memory_manager.Write<u32>(sequence_address, payload);
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});
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rasterizer->SyncOperation(std::move(operation));
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}
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void Puller::ProcessSemaphoreAcquire() {
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u32 word = memory_manager.Read<u32>(regs.semaphore_address.SemaphoreAddress());
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const auto value = regs.semaphore_acquire;
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while (word != value) {
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regs.acquire_active = true;
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regs.acquire_value = value;
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std::this_thread::sleep_for(std::chrono::milliseconds(1));
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rasterizer->ReleaseFences();
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word = memory_manager.Read<u32>(regs.semaphore_address.SemaphoreAddress());
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// TODO(kemathe73) figure out how to do the acquire_timeout
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regs.acquire_mode = false;
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regs.acquire_source = false;
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}
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}
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/// Calls a GPU puller method.
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void Puller::CallPullerMethod(const MethodCall& method_call) {
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regs.reg_array[method_call.method] = method_call.argument;
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const auto method = static_cast<BufferMethods>(method_call.method);
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switch (method) {
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case BufferMethods::BindObject: {
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ProcessBindMethod(method_call);
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break;
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}
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case BufferMethods::Nop:
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case BufferMethods::SemaphoreAddressHigh:
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case BufferMethods::SemaphoreAddressLow:
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case BufferMethods::SemaphoreSequencePayload:
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case BufferMethods::SyncpointPayload:
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break;
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case BufferMethods::WrcacheFlush:
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case BufferMethods::RefCnt:
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rasterizer->SignalReference();
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break;
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case BufferMethods::SyncpointOperation:
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ProcessFenceActionMethod();
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break;
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case BufferMethods::WaitForIdle:
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rasterizer->WaitForIdle();
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break;
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case BufferMethods::SemaphoreOperation: {
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ProcessSemaphoreTriggerMethod();
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break;
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}
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case BufferMethods::NonStallInterrupt: {
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LOG_ERROR(HW_GPU, "Special puller engine method NonStallInterrupt not implemented");
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break;
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}
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case BufferMethods::MemOpA: {
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LOG_ERROR(HW_GPU, "Memory Operation A");
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break;
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}
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case BufferMethods::MemOpB: {
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// Implement this better.
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rasterizer->InvalidateGPUCache();
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break;
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}
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case BufferMethods::MemOpC:
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case BufferMethods::MemOpD: {
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LOG_ERROR(HW_GPU, "Memory Operation C,D");
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break;
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}
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case BufferMethods::SemaphoreAcquire: {
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ProcessSemaphoreAcquire();
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break;
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}
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case BufferMethods::SemaphoreRelease: {
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ProcessSemaphoreRelease();
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break;
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}
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case BufferMethods::Yield: {
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// TODO(Kmather73): Research and implement this method.
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LOG_ERROR(HW_GPU, "Special puller engine method Yield not implemented");
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break;
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}
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default:
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LOG_ERROR(HW_GPU, "Special puller engine method {:X} not implemented", method);
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break;
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}
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}
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/// Calls a GPU engine method.
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void Puller::CallEngineMethod(const MethodCall& method_call) {
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const EngineID engine = bound_engines[method_call.subchannel];
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switch (engine) {
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case EngineID::FERMI_TWOD_A:
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channel_state.fermi_2d->CallMethod(method_call.method, method_call.argument,
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method_call.IsLastCall());
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break;
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case EngineID::MAXWELL_B:
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channel_state.maxwell_3d->CallMethod(method_call.method, method_call.argument,
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method_call.IsLastCall());
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break;
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case EngineID::KEPLER_COMPUTE_B:
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channel_state.kepler_compute->CallMethod(method_call.method, method_call.argument,
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method_call.IsLastCall());
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break;
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case EngineID::MAXWELL_DMA_COPY_A:
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channel_state.maxwell_dma->CallMethod(method_call.method, method_call.argument,
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method_call.IsLastCall());
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break;
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case EngineID::KEPLER_INLINE_TO_MEMORY_B:
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channel_state.kepler_memory->CallMethod(method_call.method, method_call.argument,
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method_call.IsLastCall());
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break;
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default:
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UNIMPLEMENTED_MSG("Unimplemented engine");
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}
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}
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/// Calls a GPU engine multivalue method.
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void Puller::CallEngineMultiMethod(u32 method, u32 subchannel, const u32* base_start, u32 amount,
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u32 methods_pending) {
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const EngineID engine = bound_engines[subchannel];
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switch (engine) {
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case EngineID::FERMI_TWOD_A:
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channel_state.fermi_2d->CallMultiMethod(method, base_start, amount, methods_pending);
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break;
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case EngineID::MAXWELL_B:
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channel_state.maxwell_3d->CallMultiMethod(method, base_start, amount, methods_pending);
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break;
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case EngineID::KEPLER_COMPUTE_B:
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channel_state.kepler_compute->CallMultiMethod(method, base_start, amount, methods_pending);
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break;
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case EngineID::MAXWELL_DMA_COPY_A:
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channel_state.maxwell_dma->CallMultiMethod(method, base_start, amount, methods_pending);
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break;
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case EngineID::KEPLER_INLINE_TO_MEMORY_B:
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channel_state.kepler_memory->CallMultiMethod(method, base_start, amount, methods_pending);
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break;
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default:
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UNIMPLEMENTED_MSG("Unimplemented engine");
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}
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}
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/// Calls a GPU method.
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void Puller::CallMethod(const MethodCall& method_call) {
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LOG_TRACE(HW_GPU, "Processing method {:08X} on subchannel {}", method_call.method,
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method_call.subchannel);
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ASSERT(method_call.subchannel < bound_engines.size());
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if (ExecuteMethodOnEngine(method_call.method)) {
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CallEngineMethod(method_call);
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} else {
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CallPullerMethod(method_call);
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}
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}
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/// Calls a GPU multivalue method.
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void Puller::CallMultiMethod(u32 method, u32 subchannel, const u32* base_start, u32 amount,
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u32 methods_pending) {
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LOG_TRACE(HW_GPU, "Processing method {:08X} on subchannel {}", method, subchannel);
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ASSERT(subchannel < bound_engines.size());
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if (ExecuteMethodOnEngine(method)) {
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CallEngineMultiMethod(method, subchannel, base_start, amount, methods_pending);
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} else {
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for (std::size_t i = 0; i < amount; i++) {
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CallPullerMethod(MethodCall{
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method,
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base_start[i],
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subchannel,
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methods_pending - static_cast<u32>(i),
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});
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}
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}
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}
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void Puller::BindRasterizer(VideoCore::RasterizerInterface* rasterizer_) {
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rasterizer = rasterizer_;
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}
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/// Determines where the method should be executed.
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[[nodiscard]] bool Puller::ExecuteMethodOnEngine(u32 method) {
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const auto buffer_method = static_cast<BufferMethods>(method);
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return buffer_method >= BufferMethods::NonPullerMethods;
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}
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} // namespace Tegra::Engines
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