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Initial Reaper Setup

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WIP
This commit is contained in:
ReinUsesLisp 2021-01-19 21:59:53 -03:00 committed by Fernando Sahmkow
parent 5b1efe522e
commit a11bc4a382
6 changed files with 226 additions and 56 deletions
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11
src/video_core/buffer_cache/buffer_base.h
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@ -256,6 +256,16 @@ public:
stream_score += score;
}
/// Sets the new frame tick
void SetFrameTick(u64 new_frame_tick) noexcept {
frame_tick = new_frame_tick;
}
/// Returns the new frame tick
[[nodiscard]] u64 FrameTick() const noexcept {
return frame_tick;
}
/// Returns the likeliness of this being a stream buffer
[[nodiscard]] int StreamScore() const noexcept {
return stream_score;
@ -586,6 +596,7 @@ private:
RasterizerInterface* rasterizer = nullptr;
VAddr cpu_addr = 0;
Words words;
u64 frame_tick = 0;
BufferFlagBits flags{};
int stream_score = 0;
};

138
src/video_core/buffer_cache/buffer_cache.h
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@ -243,6 +243,8 @@ private:
template <bool insert>
void ChangeRegister(BufferId buffer_id);
void TouchBuffer(Buffer& buffer) const noexcept;
bool SynchronizeBuffer(Buffer& buffer, VAddr cpu_addr, u32 size);
bool SynchronizeBufferImpl(Buffer& buffer, VAddr cpu_addr, u32 size);
@ -255,6 +257,10 @@ private:
void MappedUploadMemory(Buffer& buffer, u64 total_size_bytes, std::span<BufferCopy> copies);
void DownloadBufferMemory(Buffer& buffer_id);
void DownloadBufferMemory(Buffer& buffer_id, VAddr cpu_addr, u64 size);
void DeleteBuffer(BufferId buffer_id);
void ReplaceBufferDownloads(BufferId old_buffer_id, BufferId new_buffer_id);
@ -319,6 +325,9 @@ private:
size_t immediate_buffer_capacity = 0;
std::unique_ptr<u8[]> immediate_buffer_alloc;
typename SlotVector<Buffer>::Iterator deletion_iterator;
u64 frame_tick = 0;
std::array<BufferId, ((1ULL << 39) >> PAGE_BITS)> page_table;
};
@ -332,6 +341,7 @@ BufferCache<P>::BufferCache(VideoCore::RasterizerInterface& rasterizer_,
gpu_memory{gpu_memory_}, cpu_memory{cpu_memory_}, runtime{runtime_} {
// Ensure the first slot is used for the null buffer
void(slot_buffers.insert(runtime, NullBufferParams{}));
deletion_iterator = slot_buffers.end();
}
template <class P>
@ -349,7 +359,24 @@ void BufferCache<P>::TickFrame() {
const bool skip_preferred = hits * 256 < shots * 251;
uniform_buffer_skip_cache_size = skip_preferred ? DEFAULT_SKIP_CACHE_SIZE : 0;
static constexpr u64 ticks_to_destroy = 120;
int num_iterations = 32;
for (; num_iterations > 0; --num_iterations) {
if (deletion_iterator == slot_buffers.end()) {
deletion_iterator = slot_buffers.begin();
}
++deletion_iterator;
if (deletion_iterator == slot_buffers.end()) {
break;
}
const auto [buffer_id, buffer] = *deletion_iterator;
if (buffer->FrameTick() + ticks_to_destroy < frame_tick) {
DownloadBufferMemory(*buffer);
DeleteBuffer(buffer_id);
}
}
delayed_destruction_ring.Tick();
++frame_tick;
}
template <class P>
@ -371,50 +398,8 @@ void BufferCache<P>::CachedWriteMemory(VAddr cpu_addr, u64 size) {
template <class P>
void BufferCache<P>::DownloadMemory(VAddr cpu_addr, u64 size) {
ForEachBufferInRange(cpu_addr, size, [&](BufferId, Buffer& buffer) {
boost::container::small_vector<BufferCopy, 1> copies;
u64 total_size_bytes = 0;
u64 largest_copy = 0;
buffer.ForEachDownloadRange(cpu_addr, size, [&](u64 range_offset, u64 range_size) {
copies.push_back(BufferCopy{
.src_offset = range_offset,
.dst_offset = total_size_bytes,
.size = range_size,
});
total_size_bytes += range_size;
largest_copy = std::max(largest_copy, range_size);
});
if (total_size_bytes == 0) {
return;
}
MICROPROFILE_SCOPE(GPU_DownloadMemory);
if constexpr (USE_MEMORY_MAPS) {
auto download_staging = runtime.DownloadStagingBuffer(total_size_bytes);
const u8* const mapped_memory = download_staging.mapped_span.data();
const std::span<BufferCopy> copies_span(copies.data(), copies.data() + copies.size());
for (BufferCopy& copy : copies) {
// Modify copies to have the staging offset in mind
copy.dst_offset += download_staging.offset;
}
runtime.CopyBuffer(download_staging.buffer, buffer, copies_span);
runtime.Finish();
for (const BufferCopy& copy : copies) {
const VAddr copy_cpu_addr = buffer.CpuAddr() + copy.src_offset;
// Undo the modified offset
const u64 dst_offset = copy.dst_offset - download_staging.offset;
const u8* copy_mapped_memory = mapped_memory + dst_offset;
cpu_memory.WriteBlockUnsafe(copy_cpu_addr, copy_mapped_memory, copy.size);
}
} else {
const std::span<u8> immediate_buffer = ImmediateBuffer(largest_copy);
for (const BufferCopy& copy : copies) {
buffer.ImmediateDownload(copy.src_offset, immediate_buffer.subspan(0, copy.size));
const VAddr copy_cpu_addr = buffer.CpuAddr() + copy.src_offset;
cpu_memory.WriteBlockUnsafe(copy_cpu_addr, immediate_buffer.data(), copy.size);
}
}
});
ForEachBufferInRange(cpu_addr, size,
[&](BufferId, Buffer& buffer) { DownloadBufferMemory(buffer); });
}
template <class P>
@ -640,6 +625,7 @@ bool BufferCache<P>::IsRegionGpuModified(VAddr addr, size_t size) {
template <class P>
void BufferCache<P>::BindHostIndexBuffer() {
Buffer& buffer = slot_buffers[index_buffer.buffer_id];
TouchBuffer(buffer);
const u32 offset = buffer.Offset(index_buffer.cpu_addr);
const u32 size = index_buffer.size;
SynchronizeBuffer(buffer, index_buffer.cpu_addr, size);
@ -658,6 +644,7 @@ void BufferCache<P>::BindHostVertexBuffers() {
for (u32 index = 0; index < NUM_VERTEX_BUFFERS; ++index) {
const Binding& binding = vertex_buffers[index];
Buffer& buffer = slot_buffers[binding.buffer_id];
TouchBuffer(buffer);
SynchronizeBuffer(buffer, binding.cpu_addr, binding.size);
if (!flags[Dirty::VertexBuffer0 + index]) {
continue;
@ -693,6 +680,7 @@ void BufferCache<P>::BindHostGraphicsUniformBuffer(size_t stage, u32 index, u32
const VAddr cpu_addr = binding.cpu_addr;
const u32 size = binding.size;
Buffer& buffer = slot_buffers[binding.buffer_id];
TouchBuffer(buffer);
const bool use_fast_buffer = binding.buffer_id != NULL_BUFFER_ID &&
size <= uniform_buffer_skip_cache_size &&
!buffer.IsRegionGpuModified(cpu_addr, size);
@ -744,6 +732,7 @@ void BufferCache<P>::BindHostGraphicsStorageBuffers(size_t stage) {
ForEachEnabledBit(enabled_storage_buffers[stage], [&](u32 index) {
const Binding& binding = storage_buffers[stage][index];
Buffer& buffer = slot_buffers[binding.buffer_id];
TouchBuffer(buffer);
const u32 size = binding.size;
SynchronizeBuffer(buffer, binding.cpu_addr, size);
@ -766,6 +755,7 @@ void BufferCache<P>::BindHostTransformFeedbackBuffers() {
for (u32 index = 0; index < NUM_TRANSFORM_FEEDBACK_BUFFERS; ++index) {
const Binding& binding = transform_feedback_buffers[index];
Buffer& buffer = slot_buffers[binding.buffer_id];
TouchBuffer(buffer);
const u32 size = binding.size;
SynchronizeBuffer(buffer, binding.cpu_addr, size);
@ -784,6 +774,7 @@ void BufferCache<P>::BindHostComputeUniformBuffers() {
ForEachEnabledBit(enabled_compute_uniform_buffers, [&](u32 index) {
const Binding& binding = compute_uniform_buffers[index];
Buffer& buffer = slot_buffers[binding.buffer_id];
TouchBuffer(buffer);
const u32 size = binding.size;
SynchronizeBuffer(buffer, binding.cpu_addr, size);
@ -803,6 +794,7 @@ void BufferCache<P>::BindHostComputeStorageBuffers() {
ForEachEnabledBit(enabled_compute_storage_buffers, [&](u32 index) {
const Binding& binding = compute_storage_buffers[index];
Buffer& buffer = slot_buffers[binding.buffer_id];
TouchBuffer(buffer);
const u32 size = binding.size;
SynchronizeBuffer(buffer, binding.cpu_addr, size);
@ -1101,6 +1093,7 @@ BufferId BufferCache<P>::CreateBuffer(VAddr cpu_addr, u32 wanted_size) {
const OverlapResult overlap = ResolveOverlaps(cpu_addr, wanted_size);
const u32 size = static_cast<u32>(overlap.end - overlap.begin);
const BufferId new_buffer_id = slot_buffers.insert(runtime, rasterizer, overlap.begin, size);
TouchBuffer(slot_buffers[new_buffer_id]);
for (const BufferId overlap_id : overlap.ids) {
JoinOverlap(new_buffer_id, overlap_id, !overlap.has_stream_leap);
}
@ -1135,6 +1128,11 @@ void BufferCache<P>::ChangeRegister(BufferId buffer_id) {
}
}
template <class P>
void BufferCache<P>::TouchBuffer(Buffer& buffer) const noexcept {
buffer.SetFrameTick(frame_tick);
}
template <class P>
bool BufferCache<P>::SynchronizeBuffer(Buffer& buffer, VAddr cpu_addr, u32 size) {
if (buffer.CpuAddr() == 0) {
@ -1211,6 +1209,57 @@ void BufferCache<P>::MappedUploadMemory(Buffer& buffer, u64 total_size_bytes,
runtime.CopyBuffer(buffer, upload_staging.buffer, copies);
}
template <class P>
void BufferCache<P>::DownloadBufferMemory(Buffer& buffer) {
DownloadBufferMemory(buffer, buffer.CpuAddr(), buffer.SizeBytes());
}
template <class P>
void BufferCache<P>::DownloadBufferMemory(Buffer& buffer, VAddr cpu_addr, u64 size) {
boost::container::small_vector<BufferCopy, 1> copies;
u64 total_size_bytes = 0;
u64 largest_copy = 0;
buffer.ForEachDownloadRange(cpu_addr, size, [&](u64 range_offset, u64 range_size) {
copies.push_back(BufferCopy{
.src_offset = range_offset,
.dst_offset = total_size_bytes,
.size = range_size,
});
total_size_bytes += range_size;
largest_copy = std::max(largest_copy, range_size);
});
if (total_size_bytes == 0) {
return;
}
MICROPROFILE_SCOPE(GPU_DownloadMemory);
if constexpr (USE_MEMORY_MAPS) {
auto download_staging = runtime.DownloadStagingBuffer(total_size_bytes);
const u8* const mapped_memory = download_staging.mapped_span.data();
const std::span<BufferCopy> copies_span(copies.data(), copies.data() + copies.size());
for (BufferCopy& copy : copies) {
// Modify copies to have the staging offset in mind
copy.dst_offset += download_staging.offset;
}
runtime.CopyBuffer(download_staging.buffer, buffer, copies_span);
runtime.Finish();
for (const BufferCopy& copy : copies) {
const VAddr copy_cpu_addr = buffer.CpuAddr() + copy.src_offset;
// Undo the modified offset
const u64 dst_offset = copy.dst_offset - download_staging.offset;
const u8* copy_mapped_memory = mapped_memory + dst_offset;
cpu_memory.WriteBlockUnsafe(copy_cpu_addr, copy_mapped_memory, copy.size);
}
} else {
const std::span<u8> immediate_buffer = ImmediateBuffer(largest_copy);
for (const BufferCopy& copy : copies) {
buffer.ImmediateDownload(copy.src_offset, immediate_buffer.subspan(0, copy.size));
const VAddr copy_cpu_addr = buffer.CpuAddr() + copy.src_offset;
cpu_memory.WriteBlockUnsafe(copy_cpu_addr, immediate_buffer.data(), copy.size);
}
}
}
template <class P>
void BufferCache<P>::DeleteBuffer(BufferId buffer_id) {
const auto scalar_replace = [buffer_id](Binding& binding) {
@ -1236,6 +1285,7 @@ void BufferCache<P>::DeleteBuffer(BufferId buffer_id) {
Unregister(buffer_id);
delayed_destruction_ring.Push(std::move(slot_buffers[buffer_id]));
slot_buffers.erase(buffer_id);
NotifyBufferDeletion();
}

17
src/video_core/texture_cache/image_base.cpp
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@ -113,6 +113,23 @@ void ImageBase::InsertView(const ImageViewInfo& view_info, ImageViewId image_vie
image_view_ids.push_back(image_view_id);
}
bool ImageBase::IsSafeDownload() const noexcept {
// Skip images that were not modified from the GPU
if (False(flags & ImageFlagBits::GpuModified)) {
return false;
}
// Skip images that .are. modified from the CPU
// We don't want to write sensitive data from the guest
if (True(flags & ImageFlagBits::CpuModified)) {
return false;
}
if (info.num_samples > 1) {
LOG_WARNING(HW_GPU, "MSAA image downloads are not implemented");
return false;
}
return true;
}
void AddImageAlias(ImageBase& lhs, ImageBase& rhs, ImageId lhs_id, ImageId rhs_id) {
static constexpr auto OPTIONS = RelaxedOptions::Size | RelaxedOptions::Format;
ASSERT(lhs.info.type == rhs.info.type);

2
src/video_core/texture_cache/image_base.h
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@ -44,6 +44,8 @@ struct ImageBase {
void InsertView(const ImageViewInfo& view_info, ImageViewId image_view_id);
[[nodiscard]] bool IsSafeDownload() const noexcept;
[[nodiscard]] bool Overlaps(VAddr overlap_cpu_addr, size_t overlap_size) const noexcept {
const VAddr overlap_end = overlap_cpu_addr + overlap_size;
return cpu_addr < overlap_end && overlap_cpu_addr < cpu_addr_end;

70
src/video_core/texture_cache/slot_vector.h
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@ -5,6 +5,7 @@
#pragma once
#include <array>
#include <bit>
#include <concepts>
#include <numeric>
#include <type_traits>
@ -32,6 +33,60 @@ template <class T>
requires std::is_nothrow_move_assignable_v<T>&&
std::is_nothrow_move_constructible_v<T> class SlotVector {
public:
class Iterator {
friend SlotVector<T>;
public:
constexpr Iterator() = default;
Iterator& operator++() noexcept {
const u64* const bitset = slot_vector->stored_bitset.data();
const u32 size = static_cast<u32>(slot_vector->stored_bitset.size()) * 64;
if (id.index < size) {
do {
++id.index;
} while (id.index < size && !IsValid(bitset));
if (id.index == size) {
id.index = SlotId::INVALID_INDEX;
}
}
return *this;
}
Iterator operator++(int) noexcept {
const Iterator copy{*this};
++*this;
return copy;
}
bool operator==(const Iterator& other) const noexcept {
return id.index == other.id.index;
}
bool operator!=(const Iterator& other) const noexcept {
return id.index != other.id.index;
}
std::pair<SlotId, T*> operator*() const noexcept {
return {id, std::addressof((*slot_vector)[id])};
}
T* operator->() const noexcept {
return std::addressof((*slot_vector)[id]);
}
private:
Iterator(SlotVector<T>* slot_vector_, SlotId id_) noexcept
: slot_vector{slot_vector_}, id{id_} {}
bool IsValid(const u64* bitset) noexcept {
return ((bitset[id.index / 64] >> (id.index % 64)) & 1) != 0;
}
SlotVector<T>* slot_vector;
SlotId id;
};
~SlotVector() noexcept {
size_t index = 0;
for (u64 bits : stored_bitset) {
@ -70,6 +125,20 @@ public:
ResetStorageBit(id.index);
}
[[nodiscard]] Iterator begin() noexcept {
const auto it = std::ranges::find_if(stored_bitset, [](u64 value) { return value != 0; });
if (it == stored_bitset.end()) {
return end();
}
const u32 word_index = static_cast<u32>(std::distance(it, stored_bitset.begin()));
const SlotId first_id{word_index * 64 + static_cast<u32>(std::countr_zero(*it))};
return Iterator(this, first_id);
}
[[nodiscard]] Iterator end() noexcept {
return Iterator(this, SlotId{SlotId::INVALID_INDEX});
}
private:
struct NonTrivialDummy {
NonTrivialDummy() noexcept {}
@ -140,7 +209,6 @@ private:
Entry* values = nullptr;
size_t values_capacity = 0;
size_t values_size = 0;
std::vector<u64> stored_bitset;
std::vector<u32> free_list;

44
src/video_core/texture_cache/texture_cache.h
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@ -353,6 +353,7 @@ private:
u64 modification_tick = 0;
u64 frame_tick = 0;
typename SlotVector<Image>::Iterator deletion_iterator;
};
template <class P>
@ -373,10 +374,41 @@ TextureCache<P>::TextureCache(Runtime& runtime_, VideoCore::RasterizerInterface&
// This way the null resource becomes a compile time constant
void(slot_image_views.insert(runtime, NullImageParams{}));
void(slot_samplers.insert(runtime, sampler_descriptor));
deletion_iterator = slot_images.begin();
}
template <class P>
void TextureCache<P>::TickFrame() {
static constexpr u64 ticks_to_destroy = 120;
int num_iterations = 32;
for (; num_iterations > 0; --num_iterations) {
if (deletion_iterator == slot_images.end()) {
deletion_iterator = slot_images.begin();
if (deletion_iterator == slot_images.end()) {
break;
}
}
const auto [image_id, image] = *deletion_iterator;
if (image->frame_tick + ticks_to_destroy < frame_tick) {
if (image->IsSafeDownload() &&
std::ranges::none_of(image->aliased_images, [&](const AliasedImage& alias) {
return slot_images[alias.id].modification_tick > image->modification_tick;
})) {
auto map = runtime.DownloadStagingBuffer(image->unswizzled_size_bytes);
const auto copies = FullDownloadCopies(image->info);
image->DownloadMemory(map, copies);
runtime.Finish();
SwizzleImage(gpu_memory, image->gpu_addr, image->info, copies, map.mapped_span);
}
if (True(image->flags & ImageFlagBits::Tracked)) {
UntrackImage(*image);
}
UnregisterImage(image_id);
DeleteImage(image_id);
}
++deletion_iterator;
}
// Tick sentenced resources in this order to ensure they are destroyed in the right order
sentenced_images.Tick();
sentenced_framebuffers.Tick();
@ -568,17 +600,7 @@ template <class P>
void TextureCache<P>::DownloadMemory(VAddr cpu_addr, size_t size) {
std::vector<ImageId> images;
ForEachImageInRegion(cpu_addr, size, [this, &images](ImageId image_id, ImageBase& image) {
// Skip images that were not modified from the GPU
if (False(image.flags & ImageFlagBits::GpuModified)) {
return;
}
// Skip images that .are. modified from the CPU
// We don't want to write sensitive data from the guest
if (True(image.flags & ImageFlagBits::CpuModified)) {
return;
}
if (image.info.num_samples > 1) {
LOG_WARNING(HW_GPU, "MSAA image downloads are not implemented");
if (!image.IsSafeDownload()) {
return;
}
image.flags &= ~ImageFlagBits::GpuModified;