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Merge pull request #10942 from FernandoS27/android-is-a-pain-in-the-a--

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Memory Tracking: Add mechanism to register small writes when gpu page is contested by GPU
This commit is contained in:
liamwhite 2023-07-02 11:29:01 -04:00 • committed by GitHub
commit eaa62aee98
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GPG key ID: 4AEE18F83AFDEB23
20 changed files with 329 additions and 41 deletions
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32
src/core/core.cpp
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@ -27,6 +27,7 @@
#include "core/file_sys/savedata_factory.h"
#include "core/file_sys/vfs_concat.h"
#include "core/file_sys/vfs_real.h"
#include "core/gpu_dirty_memory_manager.h"
#include "core/hid/hid_core.h"
#include "core/hle/kernel/k_memory_manager.h"
#include "core/hle/kernel/k_process.h"
@ -130,7 +131,10 @@ FileSys::VirtualFile GetGameFileFromPath(const FileSys::VirtualFilesystem& vfs,
struct System::Impl {
explicit Impl(System& system)
: kernel{system}, fs_controller{system}, memory{system}, hid_core{}, room_network{},
cpu_manager{system}, reporter{system}, applet_manager{system}, time_manager{system} {}
cpu_manager{system}, reporter{system}, applet_manager{system}, time_manager{system},
gpu_dirty_memory_write_manager{} {
memory.SetGPUDirtyManagers(gpu_dirty_memory_write_manager);
}
void Initialize(System& system) {
device_memory = std::make_unique<Core::DeviceMemory>();
@ -234,6 +238,8 @@ struct System::Impl {
// Setting changes may require a full system reinitialization (e.g., disabling multicore).
ReinitializeIfNecessary(system);
memory.SetGPUDirtyManagers(gpu_dirty_memory_write_manager);
kernel.Initialize();
cpu_manager.Initialize();
@ -540,6 +546,9 @@ struct System::Impl {
std::array<u64, Core::Hardware::NUM_CPU_CORES> dynarmic_ticks{};
std::array<MicroProfileToken, Core::Hardware::NUM_CPU_CORES> microprofile_cpu{};
std::array<Core::GPUDirtyMemoryManager, Core::Hardware::NUM_CPU_CORES>
gpu_dirty_memory_write_manager{};
};
System::System() : impl{std::make_unique<Impl>(*this)} {}
@ -629,10 +638,31 @@ void System::PrepareReschedule(const u32 core_index) {
impl->kernel.PrepareReschedule(core_index);
}
Core::GPUDirtyMemoryManager& System::CurrentGPUDirtyMemoryManager() {
const std::size_t core = impl->kernel.GetCurrentHostThreadID();
return impl->gpu_dirty_memory_write_manager[core < Core::Hardware::NUM_CPU_CORES
? core
: Core::Hardware::NUM_CPU_CORES - 1];
}
/// Provides a constant reference to the current gou dirty memory manager.
const Core::GPUDirtyMemoryManager& System::CurrentGPUDirtyMemoryManager() const {
const std::size_t core = impl->kernel.GetCurrentHostThreadID();
return impl->gpu_dirty_memory_write_manager[core < Core::Hardware::NUM_CPU_CORES
? core
: Core::Hardware::NUM_CPU_CORES - 1];
}
size_t System::GetCurrentHostThreadID() const {
return impl->kernel.GetCurrentHostThreadID();
}
void System::GatherGPUDirtyMemory(std::function<void(VAddr, size_t)>& callback) {
for (auto& manager : impl->gpu_dirty_memory_write_manager) {
manager.Gather(callback);
}
}
PerfStatsResults System::GetAndResetPerfStats() {
return impl->GetAndResetPerfStats();
}

11
src/core/core.h
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@ -108,9 +108,10 @@ class CpuManager;
class Debugger;
class DeviceMemory;
class ExclusiveMonitor;
class SpeedLimiter;
class GPUDirtyMemoryManager;
class PerfStats;
class Reporter;
class SpeedLimiter;
class TelemetrySession;
struct PerfStatsResults;
@ -225,6 +226,14 @@ public:
/// Prepare the core emulation for a reschedule
void PrepareReschedule(u32 core_index);
/// Provides a reference to the gou dirty memory manager.
[[nodiscard]] Core::GPUDirtyMemoryManager& CurrentGPUDirtyMemoryManager();
/// Provides a constant reference to the current gou dirty memory manager.
[[nodiscard]] const Core::GPUDirtyMemoryManager& CurrentGPUDirtyMemoryManager() const;
void GatherGPUDirtyMemory(std::function<void(VAddr, size_t)>& callback);
[[nodiscard]] size_t GetCurrentHostThreadID() const;
/// Gets and resets core performance statistics

122
src/core/gpu_dirty_memory_manager.h Normal file
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@ -0,0 +1,122 @@
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
#include <atomic>
#include <bit>
#include <functional>
#include <mutex>
#include <utility>
#include <vector>
#include "core/memory.h"
namespace Core {
class GPUDirtyMemoryManager {
public:
GPUDirtyMemoryManager() : current{default_transform} {
back_buffer.reserve(256);
front_buffer.reserve(256);
}
~GPUDirtyMemoryManager() = default;
void Collect(VAddr address, size_t size) {
TransformAddress t = BuildTransform(address, size);
TransformAddress tmp, original;
do {
tmp = current.load(std::memory_order_acquire);
original = tmp;
if (tmp.address != t.address) {
if (IsValid(tmp.address)) {
std::scoped_lock lk(guard);
back_buffer.emplace_back(tmp);
current.exchange(t, std::memory_order_relaxed);
return;
}
tmp.address = t.address;
tmp.mask = 0;
}
if ((tmp.mask | t.mask) == tmp.mask) {
return;
}
tmp.mask |= t.mask;
} while (!current.compare_exchange_weak(original, tmp, std::memory_order_release,
std::memory_order_relaxed));
}
void Gather(std::function<void(VAddr, size_t)>& callback) {
{
std::scoped_lock lk(guard);
TransformAddress t = current.exchange(default_transform, std::memory_order_relaxed);
front_buffer.swap(back_buffer);
if (IsValid(t.address)) {
front_buffer.emplace_back(t);
}
}
for (auto& transform : front_buffer) {
size_t offset = 0;
u64 mask = transform.mask;
while (mask != 0) {
const size_t empty_bits = std::countr_zero(mask);
offset += empty_bits << align_bits;
mask = mask >> empty_bits;
const size_t continuous_bits = std::countr_one(mask);
callback((static_cast<VAddr>(transform.address) << page_bits) + offset,
continuous_bits << align_bits);
mask = continuous_bits < align_size ? (mask >> continuous_bits) : 0;
offset += continuous_bits << align_bits;
}
}
front_buffer.clear();
}
private:
struct alignas(8) TransformAddress {
u32 address;
u32 mask;
};
constexpr static size_t page_bits = Memory::YUZU_PAGEBITS - 1;
constexpr static size_t page_size = 1ULL << page_bits;
constexpr static size_t page_mask = page_size - 1;
constexpr static size_t align_bits = 6U;
constexpr static size_t align_size = 1U << align_bits;
constexpr static size_t align_mask = align_size - 1;
constexpr static TransformAddress default_transform = {.address = ~0U, .mask = 0U};
bool IsValid(VAddr address) {
return address < (1ULL << 39);
}
template <typename T>
T CreateMask(size_t top_bit, size_t minor_bit) {
T mask = ~T(0);
mask <<= (sizeof(T) * 8 - top_bit);
mask >>= (sizeof(T) * 8 - top_bit);
mask >>= minor_bit;
mask <<= minor_bit;
return mask;
}
TransformAddress BuildTransform(VAddr address, size_t size) {
const size_t minor_address = address & page_mask;
const size_t minor_bit = minor_address >> align_bits;
const size_t top_bit = (minor_address + size + align_mask) >> align_bits;
TransformAddress result{};
result.address = static_cast<u32>(address >> page_bits);
result.mask = CreateMask<u32>(top_bit, minor_bit);
return result;
}
std::atomic<TransformAddress> current{};
std::mutex guard;
std::vector<TransformAddress> back_buffer;
std::vector<TransformAddress> front_buffer;
};
} // namespace Core

40
src/core/memory.cpp
View file

@ -3,6 +3,7 @@
#include <algorithm>
#include <cstring>
#include <span>
#include "common/assert.h"
#include "common/atomic_ops.h"
@ -13,6 +14,7 @@
#include "common/swap.h"
#include "core/core.h"
#include "core/device_memory.h"
#include "core/gpu_dirty_memory_manager.h"
#include "core/hardware_properties.h"
#include "core/hle/kernel/k_page_table.h"
#include "core/hle/kernel/k_process.h"
@ -678,7 +680,7 @@ struct Memory::Impl {
LOG_ERROR(HW_Memory, "Unmapped Write{} @ 0x{:016X} = 0x{:016X}", sizeof(T) * 8,
GetInteger(vaddr), static_cast<u64>(data));
},
[&]() { system.GPU().InvalidateRegion(GetInteger(vaddr), sizeof(T)); });
[&]() { HandleRasterizerWrite(GetInteger(vaddr), sizeof(T)); });
if (ptr) {
std::memcpy(ptr, &data, sizeof(T));
}
@ -692,7 +694,7 @@ struct Memory::Impl {
LOG_ERROR(HW_Memory, "Unmapped WriteExclusive{} @ 0x{:016X} = 0x{:016X}",
sizeof(T) * 8, GetInteger(vaddr), static_cast<u64>(data));
},
[&]() { system.GPU().InvalidateRegion(GetInteger(vaddr), sizeof(T)); });
[&]() { HandleRasterizerWrite(GetInteger(vaddr), sizeof(T)); });
if (ptr) {
const auto volatile_pointer = reinterpret_cast<volatile T*>(ptr);
return Common::AtomicCompareAndSwap(volatile_pointer, data, expected);
@ -707,7 +709,7 @@ struct Memory::Impl {
LOG_ERROR(HW_Memory, "Unmapped WriteExclusive128 @ 0x{:016X} = 0x{:016X}{:016X}",
GetInteger(vaddr), static_cast<u64>(data[1]), static_cast<u64>(data[0]));
},
[&]() { system.GPU().InvalidateRegion(GetInteger(vaddr), sizeof(u128)); });
[&]() { HandleRasterizerWrite(GetInteger(vaddr), sizeof(u128)); });
if (ptr) {
const auto volatile_pointer = reinterpret_cast<volatile u64*>(ptr);
return Common::AtomicCompareAndSwap(volatile_pointer, data, expected);
@ -717,7 +719,7 @@ struct Memory::Impl {
void HandleRasterizerDownload(VAddr address, size_t size) {
const size_t core = system.GetCurrentHostThreadID();
auto& current_area = rasterizer_areas[core];
auto& current_area = rasterizer_read_areas[core];
const VAddr end_address = address + size;
if (current_area.start_address <= address && end_address <= current_area.end_address)
[[likely]] {
@ -726,9 +728,31 @@ struct Memory::Impl {
current_area = system.GPU().OnCPURead(address, size);
}
Common::PageTable* current_page_table = nullptr;
std::array<VideoCore::RasterizerDownloadArea, Core::Hardware::NUM_CPU_CORES> rasterizer_areas{};
void HandleRasterizerWrite(VAddr address, size_t size) {
const size_t core = system.GetCurrentHostThreadID();
auto& current_area = rasterizer_write_areas[core];
VAddr subaddress = address >> YUZU_PAGEBITS;
bool do_collection = current_area.last_address == subaddress;
if (!do_collection) [[unlikely]] {
do_collection = system.GPU().OnCPUWrite(address, size);
if (!do_collection) {
return;
}
current_area.last_address = subaddress;
}
gpu_dirty_managers[core].Collect(address, size);
}
struct GPUDirtyState {
VAddr last_address;
};
Core::System& system;
Common::PageTable* current_page_table = nullptr;
std::array<VideoCore::RasterizerDownloadArea, Core::Hardware::NUM_CPU_CORES>
rasterizer_read_areas{};
std::array<GPUDirtyState, Core::Hardware::NUM_CPU_CORES> rasterizer_write_areas{};
std::span<Core::GPUDirtyMemoryManager> gpu_dirty_managers;
};
Memory::Memory(Core::System& system_) : system{system_} {
@ -876,6 +900,10 @@ void Memory::ZeroBlock(Common::ProcessAddress dest_addr, const std::size_t size)
impl->ZeroBlock(*system.ApplicationProcess(), dest_addr, size);
}
void Memory::SetGPUDirtyManagers(std::span<Core::GPUDirtyMemoryManager> managers) {
impl->gpu_dirty_managers = managers;
}
Result Memory::InvalidateDataCache(Common::ProcessAddress dest_addr, const std::size_t size) {
return impl->InvalidateDataCache(*system.ApplicationProcess(), dest_addr, size);
}

6
src/core/memory.h
View file

@ -5,6 +5,7 @@
#include <cstddef>
#include <memory>
#include <span>
#include <string>
#include "common/typed_address.h"
#include "core/hle/result.h"
@ -15,7 +16,8 @@ struct PageTable;
namespace Core {
class System;
}
class GPUDirtyMemoryManager;
} // namespace Core
namespace Kernel {
class PhysicalMemory;
@ -458,6 +460,8 @@ public:
*/
void MarkRegionDebug(Common::ProcessAddress vaddr, u64 size, bool debug);
void SetGPUDirtyManagers(std::span<Core::GPUDirtyMemoryManager> managers);
private:
Core::System& system;