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Code Issues Releases Wiki Activity

MemoryTracking: Initial setup of atomic writes.

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This commit is contained in:
Fernando Sahmkow
2023-06-28 06:28:13 +02:00
parent b60b70e86d
commit 47d0d292d5
8 changed files with 183 additions and 14 deletions
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26
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"
@@ -54,6 +55,7 @@
#include "video_core/renderer_base.h"
#include "video_core/video_core.h"
MICROPROFILE_DEFINE(ARM_CPU0, "ARM", "CPU 0", MP_RGB(255, 64, 64));
MICROPROFILE_DEFINE(ARM_CPU1, "ARM", "CPU 1", MP_RGB(255, 64, 64));
MICROPROFILE_DEFINE(ARM_CPU2, "ARM", "CPU 2", MP_RGB(255, 64, 64));
@@ -540,6 +542,9 @@ 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 +634,31 @@ 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

112
src/core/gpu_dirty_memory_manager.h Normal file
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@@ -0,0 +1,112 @@
#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} {}
~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((transform.address << Memory::YUZU_PAGEBITS) + 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(16) TransformAddress {
VAddr address;
u64 mask;
};
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 = ~0ULL, .mask = 0ULL};
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 & Memory::YUZU_PAGEMASK;
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 = address >> Memory::YUZU_PAGEBITS;
result.mask = CreateMask<u64>(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

7
src/core/memory.cpp
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@@ -13,6 +13,7 @@
#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 +679,7 @@ 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)); });
[&]() { system.CurrentGPUDirtyMemoryManager().Collect(GetInteger(vaddr), sizeof(T)); });
if (ptr) {
std::memcpy(ptr, &data, sizeof(T));
}
@@ -692,7 +693,7 @@ 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)); });
[&]() { system.CurrentGPUDirtyMemoryManager().Collect(GetInteger(vaddr), sizeof(T)); });
if (ptr) {
const auto volatile_pointer = reinterpret_cast<volatile T*>(ptr);
return Common::AtomicCompareAndSwap(volatile_pointer, data, expected);
@@ -707,7 +708,7 @@ 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)); });
[&]() { system.CurrentGPUDirtyMemoryManager().Collect(GetInteger(vaddr), sizeof(u128)); });
if (ptr) {
const auto volatile_pointer = reinterpret_cast<volatile u64*>(ptr);
return Common::AtomicCompareAndSwap(volatile_pointer, data, expected);

26
src/video_core/buffer_cache/buffer_cache.h
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@@ -115,7 +115,21 @@ void BufferCache<P>::WriteMemory(VAddr cpu_addr, u64 size) {
template <class P>
void BufferCache<P>::CachedWriteMemory(VAddr cpu_addr, u64 size) {
memory_tracker.CachedCpuWrite(cpu_addr, size);
const bool is_dirty = IsRegionRegistered(cpu_addr, size);
if (!is_dirty) {
return;
}
VAddr aligned_start = Common::AlignDown(cpu_addr, YUZU_PAGESIZE);
VAddr aligned_end = Common::AlignUp(cpu_addr + size, YUZU_PAGESIZE);
if (!IsRegionGpuModified(aligned_start, aligned_end - aligned_start)) {
WriteMemory(cpu_addr, size);
return;
}
tmp_buffer.resize_destructive(size);
cpu_memory.ReadBlockUnsafe(cpu_addr, tmp_buffer.data(), size);
InlineMemoryImplementation(cpu_addr, size, tmp_buffer);
}
template <class P>
@@ -1553,6 +1567,14 @@ bool BufferCache<P>::InlineMemory(VAddr dest_address, size_t copy_size,
return false;
}
InlineMemoryImplementation(dest_address, copy_size, inlined_buffer);
return true;
}
template <class P>
void BufferCache<P>::InlineMemoryImplementation(VAddr dest_address, size_t copy_size,
std::span<const u8> inlined_buffer) {
const IntervalType subtract_interval{dest_address, dest_address + copy_size};
ClearDownload(subtract_interval);
common_ranges.subtract(subtract_interval);
@@ -1574,8 +1596,6 @@ bool BufferCache<P>::InlineMemory(VAddr dest_address, size_t copy_size,
} else {
buffer.ImmediateUpload(buffer.Offset(dest_address), inlined_buffer.first(copy_size));
}
return true;
}
template <class P>

2
src/video_core/buffer_cache/buffer_cache_base.h
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@@ -543,6 +543,8 @@ private:
void ClearDownload(IntervalType subtract_interval);
void InlineMemoryImplementation(VAddr dest_address, size_t copy_size, std::span<const u8> inlined_buffer);
VideoCore::RasterizerInterface& rasterizer;
Core::Memory::Memory& cpu_memory;

4
src/video_core/gpu.cpp
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@@ -95,7 +95,9 @@ struct GPU::Impl {
/// Synchronizes CPU writes with Host GPU memory.
void InvalidateGPUCache() {
rasterizer->InvalidateGPUCache();
std::function<void(VAddr, size_t)> callback_writes(
[this](VAddr address, size_t size) { rasterizer->OnCPUWrite(address, size); });
system.GatherGPUDirtyMemory(callback_writes);
}
/// Signal the ending of command list.

9
src/video_core/renderer_vulkan/vk_rasterizer.cpp
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@@ -570,7 +570,7 @@ void RasterizerVulkan::OnCPUWrite(VAddr addr, u64 size) {
if (addr == 0 || size == 0) {
return;
}
pipeline_cache.OnCPUWrite(addr, size);
{
std::scoped_lock lock{texture_cache.mutex};
texture_cache.WriteMemory(addr, size);
@@ -579,14 +579,11 @@ void RasterizerVulkan::OnCPUWrite(VAddr addr, u64 size) {
std::scoped_lock lock{buffer_cache.mutex};
buffer_cache.CachedWriteMemory(addr, size);
}
pipeline_cache.InvalidateRegion(addr, size);
}
void RasterizerVulkan::InvalidateGPUCache() {
pipeline_cache.SyncGuestHost();
{
std::scoped_lock lock{buffer_cache.mutex};
buffer_cache.FlushCachedWrites();
}
gpu.InvalidateGPUCache();
}
void RasterizerVulkan::UnmapMemory(VAddr addr, u64 size) {