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// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <array>
#include <cstddef>
#include <memory>
#include <utility>
#include "common/assert.h"
#include "common/logging/log.h"
#include "common/microprofile.h"
#include "common/vector_math.h"
#include "core/memory.h"
#include "core/tracer/recorder.h"
#include "video_core/command_processor.h"
#include "video_core/engines/fermi_2d.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/engines/maxwell_compute.h"
#include "video_core/gpu.h"
#include "video_core/renderer_base.h"
#include "video_core/video_core.h"
namespace Tegra {
enum class BufferMethods {
BindObject = 0,
CountBufferMethods = 0x100,
};
void GPU::WriteReg(u32 method, u32 subchannel, u32 value) {
LOG_WARNING(HW_GPU, "Processing method %08X on subchannel %u value %08X", method, subchannel,
value);
if (method == static_cast<u32>(BufferMethods::BindObject)) {
// Bind the current subchannel to the desired engine id.
LOG_DEBUG(HW_GPU, "Binding subchannel %u to engine %u", subchannel, value);
ASSERT(bound_engines.find(subchannel) == bound_engines.end());
bound_engines[subchannel] = static_cast<EngineID>(value);
return;
}
if (method < static_cast<u32>(BufferMethods::CountBufferMethods)) {
// TODO(Subv): Research and implement these methods.
LOG_ERROR(HW_GPU, "Special buffer methods other than Bind are not implemented");
return;
}
ASSERT(bound_engines.find(subchannel) != bound_engines.end());
const EngineID engine = bound_engines[subchannel];
switch (engine) {
case EngineID::FERMI_TWOD_A:
fermi_2d->WriteReg(method, value);
break;
case EngineID::MAXWELL_B:
maxwell_3d->WriteReg(method, value);
break;
case EngineID::MAXWELL_COMPUTE_B:
maxwell_compute->WriteReg(method, value);
break;
default:
UNIMPLEMENTED();
}
}
void GPU::CallMethod(u32 method, u32 subchannel, const std::vector<u32>& parameters) {
LOG_WARNING(HW_GPU, "Processing method %08X on subchannel %u num params %zu", method,
subchannel, parameters.size());
if (method < static_cast<u32>(BufferMethods::CountBufferMethods)) {
// TODO(Subv): Research and implement these methods.
LOG_ERROR(HW_GPU, "Special buffer methods other than Bind are not implemented");
return;
}
ASSERT(bound_engines.find(subchannel) != bound_engines.end());
const EngineID engine = bound_engines[subchannel];
switch (engine) {
case EngineID::FERMI_TWOD_A:
fermi_2d->CallMethod(method, parameters);
break;
case EngineID::MAXWELL_B:
maxwell_3d->CallMethod(method, parameters);
break;
case EngineID::MAXWELL_COMPUTE_B:
maxwell_compute->CallMethod(method, parameters);
break;
default:
UNIMPLEMENTED();
}
}
void GPU::ProcessCommandList(GPUVAddr address, u32 size) {
// TODO(Subv): PhysicalToVirtualAddress is a misnomer, it converts a GPU VAddr into an
// application VAddr.
const VAddr head_address = memory_manager->PhysicalToVirtualAddress(address);
VAddr current_addr = head_address;
while (current_addr < head_address + size * sizeof(CommandHeader)) {
const CommandHeader header = {Memory::Read32(current_addr)};
current_addr += sizeof(u32);
switch (header.mode.Value()) {
case SubmissionMode::IncreasingOld:
case SubmissionMode::Increasing: {
// Increase the method value with each argument.
for (unsigned i = 0; i < header.arg_count; ++i) {
WriteReg(header.method + i, header.subchannel, Memory::Read32(current_addr));
current_addr += sizeof(u32);
}
break;
}
case SubmissionMode::NonIncreasingOld:
case SubmissionMode::NonIncreasing: {
// Use the same method value for all arguments.
for (unsigned i = 0; i < header.arg_count; ++i) {
WriteReg(header.method, header.subchannel, Memory::Read32(current_addr));
current_addr += sizeof(u32);
}
break;
}
case SubmissionMode::IncreaseOnce: {
ASSERT(header.arg_count.Value() >= 1);
// Use the original method for the first argument and then the next method for all other
// arguments.
// Process this command as a method call instead of a register write. Gather
// all the parameters first and then pass them at once to the CallMethod function.
std::vector<u32> parameters(header.arg_count);
for (unsigned i = 0; i < header.arg_count; ++i) {
parameters[i] = Memory::Read32(current_addr);
current_addr += sizeof(u32);
}
CallMethod(header.method, header.subchannel, parameters);
break;
}
case SubmissionMode::Inline: {
// The register value is stored in the bits 16-28 as an immediate
WriteReg(header.method, header.subchannel, header.inline_data);
break;
}
default:
UNIMPLEMENTED();
}
}
}
} // namespace Tegra
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