// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/assert.h"
#include "common/logging/log.h"
#include "common/settings.h"
#include "core/core.h"
#include "video_core/control/channel_state.h"
#include "video_core/dma_pusher.h"
#include "video_core/engines/fermi_2d.h"
#include "video_core/engines/kepler_compute.h"
#include "video_core/engines/kepler_memory.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/engines/maxwell_dma.h"
#include "video_core/engines/puller.h"
#include "video_core/gpu.h"
#include "video_core/memory_manager.h"
#include "video_core/rasterizer_interface.h"
namespace Tegra::Engines {
Puller::Puller(GPU& gpu_, MemoryManager& memory_manager_, DmaPusher& dma_pusher_,
Control::ChannelState& channel_state_)
: gpu{gpu_}, memory_manager{memory_manager_}, dma_pusher{dma_pusher_}, channel_state{
channel_state_} {}
Puller::~Puller() = default;
void Puller::ProcessBindMethod(const MethodCall& method_call) {
// Bind the current subchannel to the desired engine id.
LOG_DEBUG(HW_GPU, "Binding subchannel {} to engine {}", method_call.subchannel,
method_call.argument);
const auto engine_id = static_cast<EngineID>(method_call.argument);
bound_engines[method_call.subchannel] = static_cast<EngineID>(engine_id);
switch (engine_id) {
case EngineID::FERMI_TWOD_A:
dma_pusher.BindSubchannel(channel_state.fermi_2d.get(), method_call.subchannel);
break;
case EngineID::MAXWELL_B:
dma_pusher.BindSubchannel(channel_state.maxwell_3d.get(), method_call.subchannel);
break;
case EngineID::KEPLER_COMPUTE_B:
dma_pusher.BindSubchannel(channel_state.kepler_compute.get(), method_call.subchannel);
break;
case EngineID::MAXWELL_DMA_COPY_A:
dma_pusher.BindSubchannel(channel_state.maxwell_dma.get(), method_call.subchannel);
break;
case EngineID::KEPLER_INLINE_TO_MEMORY_B:
dma_pusher.BindSubchannel(channel_state.kepler_memory.get(), method_call.subchannel);
break;
default:
UNIMPLEMENTED_MSG("Unimplemented engine {:04X}", engine_id);
}
}
void Puller::ProcessFenceActionMethod() {
switch (regs.fence_action.op) {
case Puller::FenceOperation::Acquire:
// UNIMPLEMENTED_MSG("Channel Scheduling pending.");
// WaitFence(regs.fence_action.syncpoint_id, regs.fence_value);
break;
case Puller::FenceOperation::Increment:
rasterizer->SignalSyncPoint(regs.fence_action.syncpoint_id);
break;
default:
UNIMPLEMENTED_MSG("Unimplemented operation {}", regs.fence_action.op.Value());
}
}
void Puller::ProcessWaitForInterruptMethod() {
// TODO(bunnei) ImplementMe
LOG_WARNING(HW_GPU, "(STUBBED) called");
}
void Puller::ProcessSemaphoreTriggerMethod() {
const auto semaphoreOperationMask = 0xF;
const auto op =
static_cast<GpuSemaphoreOperation>(regs.semaphore_trigger & semaphoreOperationMask);
if (op == GpuSemaphoreOperation::WriteLong) {
struct Block {
u32 sequence;
u32 zeros = 0;
u64 timestamp;
};
Block block{};
block.sequence = regs.semaphore_sequence;
// TODO(Kmather73): Generate a real GPU timestamp and write it here instead of
// CoreTiming
block.timestamp = gpu.GetTicks();
memory_manager.WriteBlock(regs.semaphore_address.SemaphoreAddress(), &block, sizeof(block));
} else {
const u32 word{memory_manager.Read<u32>(regs.semaphore_address.SemaphoreAddress())};
if ((op == GpuSemaphoreOperation::AcquireEqual && word == regs.semaphore_sequence) ||
(op == GpuSemaphoreOperation::AcquireGequal &&
static_cast<s32>(word - regs.semaphore_sequence) > 0) ||
(op == GpuSemaphoreOperation::AcquireMask && (word & regs.semaphore_sequence))) {
// Nothing to do in this case
} else {
regs.acquire_source = true;
regs.acquire_value = regs.semaphore_sequence;
if (op == GpuSemaphoreOperation::AcquireEqual) {
regs.acquire_active = true;
regs.acquire_mode = false;
} else if (op == GpuSemaphoreOperation::AcquireGequal) {
regs.acquire_active = true;
regs.acquire_mode = true;
} else if (op == GpuSemaphoreOperation::AcquireMask) {
// TODO(kemathe) The acquire mask operation waits for a value that, ANDed with
// semaphore_sequence, gives a non-0 result
LOG_ERROR(HW_GPU, "Invalid semaphore operation AcquireMask not implemented");
} else {
LOG_ERROR(HW_GPU, "Invalid semaphore operation");
}
}
}
}
void Puller::ProcessSemaphoreRelease() {
memory_manager.Write<u32>(regs.semaphore_address.SemaphoreAddress(), regs.semaphore_release);
}
void Puller::ProcessSemaphoreAcquire() {
const u32 word = memory_manager.Read<u32>(regs.semaphore_address.SemaphoreAddress());
const auto value = regs.semaphore_acquire;
if (word != value) {
regs.acquire_active = true;
regs.acquire_value = value;
// TODO(kemathe73) figure out how to do the acquire_timeout
regs.acquire_mode = false;
regs.acquire_source = false;
}
}
/// Calls a GPU puller method.
void Puller::CallPullerMethod(const MethodCall& method_call) {
regs.reg_array[method_call.method] = method_call.argument;
const auto method = static_cast<BufferMethods>(method_call.method);
switch (method) {
case BufferMethods::BindObject: {
ProcessBindMethod(method_call);
break;
}
case BufferMethods::Nop:
case BufferMethods::SemaphoreAddressHigh:
case BufferMethods::SemaphoreAddressLow:
case BufferMethods::SemaphoreSequence:
case BufferMethods::UnkCacheFlush:
case BufferMethods::WrcacheFlush:
case BufferMethods::FenceValue:
break;
case BufferMethods::RefCnt:
rasterizer->SignalReference();
break;
case BufferMethods::FenceAction:
ProcessFenceActionMethod();
break;
case BufferMethods::WaitForInterrupt:
ProcessWaitForInterruptMethod();
break;
case BufferMethods::SemaphoreTrigger: {
ProcessSemaphoreTriggerMethod();
break;
}
case BufferMethods::NotifyIntr: {
// TODO(Kmather73): Research and implement this method.
LOG_ERROR(HW_GPU, "Special puller engine method NotifyIntr not implemented");
break;
}
case BufferMethods::Unk28: {
// TODO(Kmather73): Research and implement this method.
LOG_ERROR(HW_GPU, "Special puller engine method Unk28 not implemented");
break;
}
case BufferMethods::SemaphoreAcquire: {
ProcessSemaphoreAcquire();
break;
}
case BufferMethods::SemaphoreRelease: {
ProcessSemaphoreRelease();
break;
}
case BufferMethods::Yield: {
// TODO(Kmather73): Research and implement this method.
LOG_ERROR(HW_GPU, "Special puller engine method Yield not implemented");
break;
}
default:
LOG_ERROR(HW_GPU, "Special puller engine method {:X} not implemented", method);
break;
}
}
/// Calls a GPU engine method.
void Puller::CallEngineMethod(const MethodCall& method_call) {
const EngineID engine = bound_engines[method_call.subchannel];
switch (engine) {
case EngineID::FERMI_TWOD_A:
channel_state.fermi_2d->CallMethod(method_call.method, method_call.argument,
method_call.IsLastCall());
break;
case EngineID::MAXWELL_B:
channel_state.maxwell_3d->CallMethod(method_call.method, method_call.argument,
method_call.IsLastCall());
break;
case EngineID::KEPLER_COMPUTE_B:
channel_state.kepler_compute->CallMethod(method_call.method, method_call.argument,
method_call.IsLastCall());
break;
case EngineID::MAXWELL_DMA_COPY_A:
channel_state.maxwell_dma->CallMethod(method_call.method, method_call.argument,
method_call.IsLastCall());
break;
case EngineID::KEPLER_INLINE_TO_MEMORY_B:
channel_state.kepler_memory->CallMethod(method_call.method, method_call.argument,
method_call.IsLastCall());
break;
default:
UNIMPLEMENTED_MSG("Unimplemented engine");
}
}
/// Calls a GPU engine multivalue method.
void Puller::CallEngineMultiMethod(u32 method, u32 subchannel, const u32* base_start, u32 amount,
u32 methods_pending) {
const EngineID engine = bound_engines[subchannel];
switch (engine) {
case EngineID::FERMI_TWOD_A:
channel_state.fermi_2d->CallMultiMethod(method, base_start, amount, methods_pending);
break;
case EngineID::MAXWELL_B:
channel_state.maxwell_3d->CallMultiMethod(method, base_start, amount, methods_pending);
break;
case EngineID::KEPLER_COMPUTE_B:
channel_state.kepler_compute->CallMultiMethod(method, base_start, amount, methods_pending);
break;
case EngineID::MAXWELL_DMA_COPY_A:
channel_state.maxwell_dma->CallMultiMethod(method, base_start, amount, methods_pending);
break;
case EngineID::KEPLER_INLINE_TO_MEMORY_B:
channel_state.kepler_memory->CallMultiMethod(method, base_start, amount, methods_pending);
break;
default:
UNIMPLEMENTED_MSG("Unimplemented engine");
}
}
/// Calls a GPU method.
void Puller::CallMethod(const MethodCall& method_call) {
LOG_TRACE(HW_GPU, "Processing method {:08X} on subchannel {}", method_call.method,
method_call.subchannel);
ASSERT(method_call.subchannel < bound_engines.size());
if (ExecuteMethodOnEngine(method_call.method)) {
CallEngineMethod(method_call);
} else {
CallPullerMethod(method_call);
}
}
/// Calls a GPU multivalue method.
void Puller::CallMultiMethod(u32 method, u32 subchannel, const u32* base_start, u32 amount,
u32 methods_pending) {
LOG_TRACE(HW_GPU, "Processing method {:08X} on subchannel {}", method, subchannel);
ASSERT(subchannel < bound_engines.size());
if (ExecuteMethodOnEngine(method)) {
CallEngineMultiMethod(method, subchannel, base_start, amount, methods_pending);
} else {
for (std::size_t i = 0; i < amount; i++) {
CallPullerMethod(MethodCall{
method,
base_start[i],
subchannel,
methods_pending - static_cast<u32>(i),
});
}
}
}
void Puller::BindRasterizer(VideoCore::RasterizerInterface* rasterizer_) {
rasterizer = rasterizer_;
}
/// Determines where the method should be executed.
[[nodiscard]] bool Puller::ExecuteMethodOnEngine(u32 method) {
const auto buffer_method = static_cast<BufferMethods>(method);
return buffer_method >= BufferMethods::NonPullerMethods;
}
} // namespace Tegra::Engines
