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Buffer Cache: Refactor to use Range sets instead

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This commit is contained in:
Fernando Sahmkow 2024-02-04 19:16:07 +01:00
parent accccc0cbf
commit 0d5a3abeae
5 changed files with 206 additions and 361 deletions
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184
src/common/range_sets.inc
View file

@ -6,9 +6,6 @@
#include <limits>
#include <utility>
#define BOOST_NO_MT
#include <boost/pool/detail/mutex.hpp>
#undef BOOST_NO_MT
#include <boost/icl/interval.hpp>
#include <boost/icl/interval_base_set.hpp>
#include <boost/icl/interval_map.hpp>
@ -20,18 +17,16 @@
#include "common/range_sets.h"
namespace boost {
template <typename T>
class fast_pool_allocator<T, default_user_allocator_new_delete, details::pool::null_mutex, 4096, 0>;
}
namespace Common {
template <typename AddressType>
struct RangeSet<AddressType>::RangeSetImpl {
template <class T>
using MyAllocator = boost::fast_pool_allocator<T, boost::default_user_allocator_new_delete,
boost::details::pool::default_mutex, 1024, 2048>;
using IntervalSet = boost::icl::interval_set<
AddressType, std::less, ICL_INTERVAL_INSTANCE(ICL_INTERVAL_DEFAULT, AddressType, std::less),
boost::fast_pool_allocator>;
MyAllocator>;
using IntervalType = typename IntervalSet::interval_type;
RangeSetImpl() = default;
@ -49,18 +44,58 @@ struct RangeSet<AddressType>::RangeSetImpl {
m_ranges_set.subtract(interval);
}
template <typename Func>
void ForEach(Func&& func) const {
if (m_ranges_set.empty()) {
return;
}
auto it = m_ranges_set.begin();
auto end_it = m_ranges_set.end();
for (; it != end_it; it++) {
const AddressType inter_addr_end = it->upper();
const AddressType inter_addr = it->lower();
func(inter_addr, inter_addr_end);
}
}
template <typename Func>
void ForEachInRange(AddressType base_addr, size_t size, Func&& func) const {
if (m_ranges_set.empty()) {
return;
}
const AddressType start_address = base_addr;
const AddressType end_address = start_address + size;
const RangeSetImpl::IntervalType search_interval{start_address, end_address};
auto it = m_ranges_set.lower_bound(search_interval);
if (it == m_ranges_set.end()) {
return;
}
auto end_it = m_ranges_set.upper_bound(search_interval);
for (; it != end_it; it++) {
AddressType inter_addr_end = it->upper();
AddressType inter_addr = it->lower();
if (inter_addr_end > end_address) {
inter_addr_end = end_address;
}
if (inter_addr < start_address) {
inter_addr = start_address;
}
func(inter_addr, inter_addr_end);
}
}
IntervalSet m_ranges_set;
};
template <typename AddressType>
struct SplitRangeSet<AddressType>::SplitRangeSetImpl {
using IntervalSet =
boost::icl::split_interval_map<AddressType, s32, boost::icl::partial_enricher, std::less,
boost::icl::inplace_plus, boost::icl::inter_section,
ICL_INTERVAL_INSTANCE(ICL_INTERVAL_DEFAULT, AddressType,
std::less),
boost::fast_pool_allocator>;
template <class T>
using MyAllocator = boost::fast_pool_allocator<T, boost::default_user_allocator_new_delete,
boost::details::pool::default_mutex, 1024, 2048>;
using IntervalSet = boost::icl::split_interval_map<
AddressType, s32, boost::icl::partial_enricher, std::less, boost::icl::inplace_plus,
boost::icl::inter_section,
ICL_INTERVAL_INSTANCE(ICL_INTERVAL_DEFAULT, AddressType, std::less), MyAllocator>;
using IntervalType = typename IntervalSet::interval_type;
SplitRangeSetImpl() = default;
@ -75,6 +110,9 @@ struct SplitRangeSet<AddressType>::SplitRangeSetImpl {
template <bool has_on_delete, typename Func>
void Subtract(AddressType base_address, size_t size, s32 amount,
[[maybe_unused]] Func&& on_delete) {
if (m_split_ranges_set.empty()) {
return;
}
AddressType end_address = base_address + static_cast<AddressType>(size);
IntervalType interval{base_address, end_address};
bool any_removals = false;
@ -101,6 +139,47 @@ struct SplitRangeSet<AddressType>::SplitRangeSetImpl {
} while (any_removals);
}
template <typename Func>
void ForEach(Func&& func) const {
if (m_split_ranges_set.empty()) {
return;
}
auto it = m_split_ranges_set.begin();
auto end_it = m_split_ranges_set.end();
for (; it != end_it; it++) {
const AddressType inter_addr_end = it->first.upper();
const AddressType inter_addr = it->first.lower();
func(inter_addr, inter_addr_end, it->second);
}
}
template <typename Func>
void ForEachInRange(AddressType base_address, size_t size, Func&& func) const {
if (m_split_ranges_set.empty()) {
return;
}
const AddressType start_address = base_address;
const AddressType end_address = start_address + size;
const SplitRangeSetImpl::IntervalType search_interval{start_address, end_address};
auto it = m_split_ranges_set.lower_bound(search_interval);
if (it == m_split_ranges_set.end()) {
return;
}
auto end_it = m_split_ranges_set.upper_bound(search_interval);
for (; it != end_it; it++) {
auto& inter = it->first;
AddressType inter_addr_end = inter.upper();
AddressType inter_addr = inter.lower();
if (inter_addr_end > end_address) {
inter_addr_end = end_address;
}
if (inter_addr < start_address) {
inter_addr = start_address;
}
func(inter_addr, inter_addr_end, it->second);
}
}
IntervalSet m_split_ranges_set;
};
@ -146,41 +225,13 @@ bool RangeSet<AddressType>::Empty() const {
template <typename AddressType>
template <typename Func>
void RangeSet<AddressType>::ForEach(Func&& func) const {
if (m_impl->m_ranges_set.empty()) {
return;
}
auto it = m_impl->m_ranges_set.begin();
auto end_it = m_impl->m_ranges_set.end();
for (; it != end_it; it++) {
const AddressType inter_addr_end = it->upper();
const AddressType inter_addr = it->lower();
func(inter_addr, inter_addr_end);
}
m_impl->ForEach(std::move(func));
}
template <typename AddressType>
template <typename Func>
void RangeSet<AddressType>::ForEachInRange(AddressType base_addr, size_t size, Func&& func) const {
auto& range_set = m_impl->m_ranges_set;
const AddressType start_address = base_addr;
const AddressType end_address = start_address + size;
const RangeSetImpl::IntervalType search_interval{start_address, end_address};
auto it = range_set.lower_bound(search_interval);
if (it == range_set.end()) {
return;
}
auto end_it = range_set.upper_bound(search_interval);
for (; it != end_it; it++) {
AddressType inter_addr_end = it->upper();
AddressType inter_addr = it->lower();
if (inter_addr_end > end_address) {
inter_addr_end = end_address;
}
if (inter_addr < start_address) {
inter_addr = start_address;
}
func(inter_addr, inter_addr_end);
}
void RangeSet<AddressType>::ForEachInRange(AddressType base_address, size_t size, Func&& func) const {
m_impl->ForEachInRange(base_address, size, std::move(func));
}
template <typename AddressType>
@ -209,18 +260,18 @@ void SplitRangeSet<AddressType>::Add(AddressType base_address, size_t size) {
template <typename AddressType>
void SplitRangeSet<AddressType>::Subtract(AddressType base_address, size_t size) {
m_impl->Subtract<false>(base_address, size, 1, [](AddressType, AddressType) {});
m_impl->template Subtract<false>(base_address, size, 1, [](AddressType, AddressType) {});
}
template <typename AddressType>
template <typename Func>
void SplitRangeSet<AddressType>::Subtract(AddressType base_address, size_t size, Func&& on_delete) {
m_impl->Subtract<true>(base_address, size, 1, on_delete);
m_impl->template Subtract<true, Func>(base_address, size, 1, std::move(on_delete));
}
template <typename AddressType>
void SplitRangeSet<AddressType>::DeleteAll(AddressType base_address, size_t size) {
m_impl->Subtract<false>(base_address, size, std::numeric_limits<s32>::max(),
m_impl->template Subtract<false>(base_address, size, std::numeric_limits<s32>::max(),
[](AddressType, AddressType) {});
}
@ -237,43 +288,14 @@ bool SplitRangeSet<AddressType>::Empty() const {
template <typename AddressType>
template <typename Func>
void SplitRangeSet<AddressType>::ForEach(Func&& func) const {
if (m_impl->m_split_ranges_set.empty()) {
return;
}
auto it = m_impl->m_split_ranges_set.begin();
auto end_it = m_impl->m_split_ranges_set.end();
for (; it != end_it; it++) {
const AddressType inter_addr_end = it->first.upper();
const AddressType inter_addr = it->first.lower();
func(inter_addr, inter_addr_end, it->second);
}
m_impl->ForEach(func);
}
template <typename AddressType>
template <typename Func>
void SplitRangeSet<AddressType>::ForEachInRange(AddressType base_address, size_t size,
Func&& func) const {
auto& range_set = m_impl->m_split_ranges_set;
const AddressType start_address = base_address;
const AddressType end_address = start_address + size;
const SplitRangeSetImpl::IntervalType search_interval{start_address, end_address};
auto it = range_set.lower_bound(search_interval);
if (it == range_set.end()) {
return;
}
auto end_it = range_set.upper_bound(search_interval);
for (; it != end_it; it++) {
auto& inter = it->first;
AddressType inter_addr_end = inter.upper();
AddressType inter_addr = inter.lower();
if (inter_addr_end > end_address) {
inter_addr_end = end_address;
}
if (inter_addr < start_address) {
inter_addr = start_address;
}
func(inter_addr, inter_addr_end, it->second);
}
m_impl->ForEachInRange(base_address, size, std::move(func));
}
} // namespace Common

250
src/video_core/buffer_cache/buffer_cache.h
View file

@ -7,6 +7,7 @@
#include <memory>
#include <numeric>
#include "common/range_sets.inc"
#include "video_core/buffer_cache/buffer_cache_base.h"
#include "video_core/guest_memory.h"
#include "video_core/host1x/gpu_device_memory_manager.h"
@ -20,7 +21,7 @@ BufferCache<P>::BufferCache(Tegra::MaxwellDeviceMemoryManager& device_memory_, R
: runtime{runtime_}, device_memory{device_memory_}, memory_tracker{device_memory} {
// Ensure the first slot is used for the null buffer
void(slot_buffers.insert(runtime, NullBufferParams{}));
common_ranges.clear();
gpu_modified_ranges.Clear();
inline_buffer_id = NULL_BUFFER_ID;
if (!runtime.CanReportMemoryUsage()) {
@ -43,6 +44,9 @@ BufferCache<P>::BufferCache(Tegra::MaxwellDeviceMemoryManager& device_memory_, R
DEFAULT_CRITICAL_MEMORY));
}
template <class P>
BufferCache<P>::~BufferCache() = default;
template <class P>
void BufferCache<P>::RunGarbageCollector() {
const bool aggressive_gc = total_used_memory >= critical_memory;
@ -96,20 +100,17 @@ void BufferCache<P>::TickFrame() {
++frame_tick;
delayed_destruction_ring.Tick();
if constexpr (IMPLEMENTS_ASYNC_DOWNLOADS) {
for (auto& buffer : async_buffers_death_ring) {
runtime.FreeDeferredStagingBuffer(buffer);
}
async_buffers_death_ring.clear();
for (auto& buffer : async_buffers_death_ring) {
runtime.FreeDeferredStagingBuffer(buffer);
}
async_buffers_death_ring.clear();
}
template <class P>
void BufferCache<P>::WriteMemory(DAddr device_addr, u64 size) {
if (memory_tracker.IsRegionGpuModified(device_addr, size)) {
const IntervalType subtract_interval{device_addr, device_addr + size};
ClearDownload(subtract_interval);
common_ranges.subtract(subtract_interval);
ClearDownload(device_addr, size);
gpu_modified_ranges.Subtract(device_addr, size);
}
memory_tracker.MarkRegionAsCpuModified(device_addr, size);
}
@ -174,11 +175,11 @@ void BufferCache<P>::DownloadMemory(DAddr device_addr, u64 size) {
}
template <class P>
void BufferCache<P>::ClearDownload(IntervalType subtract_interval) {
RemoveEachInOverlapCounter(async_downloads, subtract_interval, -1024);
uncommitted_ranges.subtract(subtract_interval);
for (auto& interval_set : committed_ranges) {
interval_set.subtract(subtract_interval);
void BufferCache<P>::ClearDownload(DAddr device_addr, u64 size) {
async_downloads.DeleteAll(device_addr, size);
uncommitted_gpu_modified_ranges.Subtract(device_addr, size);
for (auto& interval_set : committed_gpu_modified_ranges) {
interval_set.Subtract(device_addr, size);
}
}
@ -195,8 +196,7 @@ bool BufferCache<P>::DMACopy(GPUVAddr src_address, GPUVAddr dest_address, u64 am
return false;
}
const IntervalType subtract_interval{*cpu_dest_address, *cpu_dest_address + amount};
ClearDownload(subtract_interval);
ClearDownload(*cpu_dest_address, amount);
BufferId buffer_a;
BufferId buffer_b;
@ -215,21 +215,20 @@ bool BufferCache<P>::DMACopy(GPUVAddr src_address, GPUVAddr dest_address, u64 am
.size = amount,
}};
boost::container::small_vector<IntervalType, 4> tmp_intervals;
boost::container::small_vector<std::pair<DAddr, size_t>, 4> tmp_intervals;
auto mirror = [&](DAddr base_address, DAddr base_address_end) {
const u64 size = base_address_end - base_address;
const DAddr diff = base_address - *cpu_src_address;
const DAddr new_base_address = *cpu_dest_address + diff;
const IntervalType add_interval{new_base_address, new_base_address + size};
tmp_intervals.push_back(add_interval);
uncommitted_ranges.add(add_interval);
tmp_intervals.push_back({new_base_address, size});
uncommitted_gpu_modified_ranges.Add(new_base_address, size);
};
ForEachInRangeSet(common_ranges, *cpu_src_address, amount, mirror);
gpu_modified_ranges.ForEachInRange(*cpu_src_address, amount, mirror);
// This subtraction in this order is important for overlapping copies.
common_ranges.subtract(subtract_interval);
gpu_modified_ranges.Subtract(*cpu_dest_address, amount);
const bool has_new_downloads = tmp_intervals.size() != 0;
for (const IntervalType& add_interval : tmp_intervals) {
common_ranges.add(add_interval);
for (const auto& pair : tmp_intervals) {
gpu_modified_ranges.Add(pair.first, pair.second);
}
const auto& copy = copies[0];
src_buffer.MarkUsage(copy.src_offset, copy.size);
@ -257,9 +256,8 @@ bool BufferCache<P>::DMAClear(GPUVAddr dst_address, u64 amount, u32 value) {
}
const size_t size = amount * sizeof(u32);
const IntervalType subtract_interval{*cpu_dst_address, *cpu_dst_address + size};
ClearDownload(subtract_interval);
common_ranges.subtract(subtract_interval);
ClearDownload(*cpu_dst_address, size);
gpu_modified_ranges.Subtract(*cpu_dst_address, size);
const BufferId buffer = FindBuffer(*cpu_dst_address, static_cast<u32>(size));
Buffer& dest_buffer = slot_buffers[buffer];
@ -300,11 +298,11 @@ std::pair<typename P::Buffer*, u32> BufferCache<P>::ObtainCPUBuffer(
MarkWrittenBuffer(buffer_id, device_addr, size);
break;
case ObtainBufferOperation::DiscardWrite: {
DAddr device_addr_start = Common::AlignDown(device_addr, 64);
DAddr device_addr_end = Common::AlignUp(device_addr + size, 64);
IntervalType interval{device_addr_start, device_addr_end};
ClearDownload(interval);
common_ranges.subtract(interval);
const DAddr device_addr_start = Common::AlignDown(device_addr, 64);
const DAddr device_addr_end = Common::AlignUp(device_addr + size, 64);
const size_t new_size = device_addr_end - device_addr_start;
ClearDownload(device_addr_start, new_size);
gpu_modified_ranges.Subtract(device_addr_start, new_size);
break;
}
default:
@ -504,46 +502,40 @@ void BufferCache<P>::FlushCachedWrites() {
template <class P>
bool BufferCache<P>::HasUncommittedFlushes() const noexcept {
return !uncommitted_ranges.empty() || !committed_ranges.empty();
return !uncommitted_gpu_modified_ranges.Empty() || !committed_gpu_modified_ranges.empty();
}
template <class P>
void BufferCache<P>::AccumulateFlushes() {
if (uncommitted_ranges.empty()) {
if (uncommitted_gpu_modified_ranges.Empty()) {
return;
}
committed_ranges.emplace_back(std::move(uncommitted_ranges));
committed_gpu_modified_ranges.emplace_back(std::move(uncommitted_gpu_modified_ranges));
}
template <class P>
bool BufferCache<P>::ShouldWaitAsyncFlushes() const noexcept {
if constexpr (IMPLEMENTS_ASYNC_DOWNLOADS) {
return (!async_buffers.empty() && async_buffers.front().has_value());
} else {
return false;
}
return (!async_buffers.empty() && async_buffers.front().has_value());
}
template <class P>
void BufferCache<P>::CommitAsyncFlushesHigh() {
AccumulateFlushes();
if (committed_ranges.empty()) {
if constexpr (IMPLEMENTS_ASYNC_DOWNLOADS) {
async_buffers.emplace_back(std::optional<Async_Buffer>{});
}
if (committed_gpu_modified_ranges.empty()) {
async_buffers.emplace_back(std::optional<Async_Buffer>{});
return;
}
MICROPROFILE_SCOPE(GPU_DownloadMemory);
auto it = committed_ranges.begin();
while (it != committed_ranges.end()) {
auto it = committed_gpu_modified_ranges.begin();
while (it != committed_gpu_modified_ranges.end()) {
auto& current_intervals = *it;
auto next_it = std::next(it);
while (next_it != committed_ranges.end()) {
for (auto& interval : *next_it) {
current_intervals.subtract(interval);
}
while (next_it != committed_gpu_modified_ranges.end()) {
next_it->ForEach([&current_intervals](DAddr start, DAddr end) {
current_intervals.Subtract(start, end - start);
});
next_it++;
}
it++;
@ -552,10 +544,10 @@ void BufferCache<P>::CommitAsyncFlushesHigh() {
boost::container::small_vector<std::pair<BufferCopy, BufferId>, 16> downloads;
u64 total_size_bytes = 0;
u64 largest_copy = 0;
for (const IntervalSet& intervals : committed_ranges) {
for (auto& interval : intervals) {
const std::size_t size = interval.upper() - interval.lower();
const DAddr device_addr = interval.lower();
for (const Common::RangeSet<DAddr>& range_set : committed_gpu_modified_ranges) {
range_set.ForEach([&](DAddr interval_lower, DAddr interval_upper) {
const std::size_t size = interval_upper - interval_lower;
const DAddr device_addr = interval_lower;
ForEachBufferInRange(device_addr, size, [&](BufferId buffer_id, Buffer& buffer) {
const DAddr buffer_start = buffer.CpuAddr();
const DAddr buffer_end = buffer_start + buffer.SizeBytes();
@ -583,77 +575,35 @@ void BufferCache<P>::CommitAsyncFlushesHigh() {
largest_copy = std::max(largest_copy, new_size);
};
ForEachInRangeSet(common_ranges, device_addr_out, range_size, add_download);
gpu_modified_ranges.ForEachInRange(device_addr_out, range_size,
add_download);
});
});
}
});
}
committed_ranges.clear();
committed_gpu_modified_ranges.clear();
if (downloads.empty()) {
if constexpr (IMPLEMENTS_ASYNC_DOWNLOADS) {
async_buffers.emplace_back(std::optional<Async_Buffer>{});
}
async_buffers.emplace_back(std::optional<Async_Buffer>{});
return;
}
if constexpr (IMPLEMENTS_ASYNC_DOWNLOADS) {
auto download_staging = runtime.DownloadStagingBuffer(total_size_bytes, true);
boost::container::small_vector<BufferCopy, 4> normalized_copies;
IntervalSet new_async_range{};
runtime.PreCopyBarrier();
for (auto& [copy, buffer_id] : downloads) {
copy.dst_offset += download_staging.offset;
const std::array copies{copy};
BufferCopy second_copy{copy};
Buffer& buffer = slot_buffers[buffer_id];
second_copy.src_offset = static_cast<size_t>(buffer.CpuAddr()) + copy.src_offset;
DAddr orig_device_addr = static_cast<DAddr>(second_copy.src_offset);
const IntervalType base_interval{orig_device_addr, orig_device_addr + copy.size};
async_downloads += std::make_pair(base_interval, 1);
buffer.MarkUsage(copy.src_offset, copy.size);
runtime.CopyBuffer(download_staging.buffer, buffer, copies, false);
normalized_copies.push_back(second_copy);
}
runtime.PostCopyBarrier();
pending_downloads.emplace_back(std::move(normalized_copies));
async_buffers.emplace_back(download_staging);
} else {
if (!Settings::IsGPULevelHigh()) {
committed_ranges.clear();
uncommitted_ranges.clear();
} else {
if constexpr (USE_MEMORY_MAPS) {
auto download_staging = runtime.DownloadStagingBuffer(total_size_bytes);
runtime.PreCopyBarrier();
for (auto& [copy, buffer_id] : downloads) {
// Have in mind the staging buffer offset for the copy
copy.dst_offset += download_staging.offset;
const std::array copies{copy};
Buffer& buffer = slot_buffers[buffer_id];
buffer.MarkUsage(copy.src_offset, copy.size);
runtime.CopyBuffer(download_staging.buffer, buffer, copies, false);
}
runtime.PostCopyBarrier();
runtime.Finish();
for (const auto& [copy, buffer_id] : downloads) {
const Buffer& buffer = slot_buffers[buffer_id];
const DAddr device_addr = buffer.CpuAddr() + copy.src_offset;
// Undo the modified offset
const u64 dst_offset = copy.dst_offset - download_staging.offset;
const u8* read_mapped_memory = download_staging.mapped_span.data() + dst_offset;
device_memory.WriteBlockUnsafe(device_addr, read_mapped_memory, copy.size);
}
} else {
const std::span<u8> immediate_buffer = ImmediateBuffer(largest_copy);
for (const auto& [copy, buffer_id] : downloads) {
Buffer& buffer = slot_buffers[buffer_id];
buffer.ImmediateDownload(copy.src_offset,
immediate_buffer.subspan(0, copy.size));
const DAddr device_addr = buffer.CpuAddr() + copy.src_offset;
device_memory.WriteBlockUnsafe(device_addr, immediate_buffer.data(), copy.size);
}
}
}
auto download_staging = runtime.DownloadStagingBuffer(total_size_bytes, true);
boost::container::small_vector<BufferCopy, 4> normalized_copies;
runtime.PreCopyBarrier();
for (auto& [copy, buffer_id] : downloads) {
copy.dst_offset += download_staging.offset;
const std::array copies{copy};
BufferCopy second_copy{copy};
Buffer& buffer = slot_buffers[buffer_id];
second_copy.src_offset = static_cast<size_t>(buffer.CpuAddr()) + copy.src_offset;
const DAddr orig_device_addr = static_cast<DAddr>(second_copy.src_offset);
async_downloads.Add(orig_device_addr, copy.size);
buffer.MarkUsage(copy.src_offset, copy.size);
runtime.CopyBuffer(download_staging.buffer, buffer, copies, false);
normalized_copies.push_back(second_copy);
}
runtime.PostCopyBarrier();
pending_downloads.emplace_back(std::move(normalized_copies));
async_buffers.emplace_back(download_staging);
}
template <class P>
@ -676,37 +626,31 @@ void BufferCache<P>::PopAsyncBuffers() {
async_buffers.pop_front();
return;
}
if constexpr (IMPLEMENTS_ASYNC_DOWNLOADS) {
auto& downloads = pending_downloads.front();
auto& async_buffer = async_buffers.front();
u8* base = async_buffer->mapped_span.data();
const size_t base_offset = async_buffer->offset;
for (const auto& copy : downloads) {
const DAddr device_addr = static_cast<DAddr>(copy.src_offset);
const u64 dst_offset = copy.dst_offset - base_offset;
const u8* read_mapped_memory = base + dst_offset;
ForEachInOverlapCounter(
async_downloads, device_addr, copy.size, [&](DAddr start, DAddr end, int count) {
device_memory.WriteBlockUnsafe(start, &read_mapped_memory[start - device_addr],
end - start);
if (count == 1) {
const IntervalType base_interval{start, end};
common_ranges.subtract(base_interval);
}
});
const IntervalType subtract_interval{device_addr, device_addr + copy.size};
RemoveEachInOverlapCounter(async_downloads, subtract_interval, -1);
}
async_buffers_death_ring.emplace_back(*async_buffer);
async_buffers.pop_front();
pending_downloads.pop_front();
auto& downloads = pending_downloads.front();
auto& async_buffer = async_buffers.front();
u8* base = async_buffer->mapped_span.data();
const size_t base_offset = async_buffer->offset;
for (const auto& copy : downloads) {
const DAddr device_addr = static_cast<DAddr>(copy.src_offset);
const u64 dst_offset = copy.dst_offset - base_offset;
const u8* read_mapped_memory = base + dst_offset;
async_downloads.ForEachInRange(device_addr, copy.size, [&](DAddr start, DAddr end, s32) {
device_memory.WriteBlockUnsafe(start, &read_mapped_memory[start - device_addr],
end - start);
});
async_downloads.Subtract(device_addr, copy.size, [&](DAddr start, DAddr end) {
gpu_modified_ranges.Subtract(start, end - start);
});
}
async_buffers_death_ring.emplace_back(*async_buffer);
async_buffers.pop_front();
pending_downloads.pop_front();
}
template <class P>
bool BufferCache<P>::IsRegionGpuModified(DAddr addr, size_t size) {
bool is_dirty = false;
ForEachInRangeSet(common_ranges, addr, size, [&](DAddr, DAddr) { is_dirty = true; });
gpu_modified_ranges.ForEachInRange(addr, size, [&](DAddr, DAddr) { is_dirty = true; });
return is_dirty;
}
@ -1320,10 +1264,8 @@ void BufferCache<P>::UpdateComputeTextureBuffers() {
template <class P>
void BufferCache<P>::MarkWrittenBuffer(BufferId buffer_id, DAddr device_addr, u32 size) {
memory_tracker.MarkRegionAsGpuModified(device_addr, size);
const IntervalType base_interval{device_addr, device_addr + size};
common_ranges.add(base_interval);
uncommitted_ranges.add(base_interval);
gpu_modified_ranges.Add(device_addr, size);
uncommitted_gpu_modified_ranges.Add(device_addr, size);
}
template <class P>
@ -1600,9 +1542,8 @@ bool BufferCache<P>::InlineMemory(DAddr dest_address, size_t copy_size,
template <class P>
void BufferCache<P>::InlineMemoryImplementation(DAddr 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);
ClearDownload(dest_address, copy_size);
gpu_modified_ranges.Subtract(dest_address, copy_size);
BufferId buffer_id = FindBuffer(dest_address, static_cast<u32>(copy_size));
auto& buffer = slot_buffers[buffer_id];
@ -1652,12 +1593,9 @@ void BufferCache<P>::DownloadBufferMemory(Buffer& buffer, DAddr device_addr, u64
largest_copy = std::max(largest_copy, new_size);
};
const DAddr start_address = device_addr_out;
const DAddr end_address = start_address + range_size;
ForEachInRangeSet(common_ranges, start_address, range_size, add_download);
const IntervalType subtract_interval{start_address, end_address};
ClearDownload(subtract_interval);
common_ranges.subtract(subtract_interval);
gpu_modified_ranges.ForEachInRange(device_addr_out, range_size, add_download);
ClearDownload(device_addr_out, range_size);
gpu_modified_ranges.Subtract(device_addr_out, range_size);
});
if (total_size_bytes == 0) {
return;

131
src/video_core/buffer_cache/buffer_cache_base.h
View file

@ -13,25 +13,15 @@
#include <unordered_map>
#include <vector>
#include <boost/container/small_vector.hpp>
#define BOOST_NO_MT
#include <boost/pool/detail/mutex.hpp>
#undef BOOST_NO_MT
#include <boost/icl/interval.hpp>
#include <boost/icl/interval_base_set.hpp>
#include <boost/icl/interval_set.hpp>
#include <boost/icl/split_interval_map.hpp>
#include <boost/pool/pool.hpp>
#include <boost/pool/pool_alloc.hpp>
#include <boost/pool/poolfwd.hpp>
#include "common/common_types.h"
#include "common/div_ceil.h"
#include "common/literals.h"
#include "common/lru_cache.h"
#include "common/microprofile.h"
#include "common/range_sets.h"
#include "common/scope_exit.h"
#include "common/settings.h"
#include "common/slot_vector.h"
#include "video_core/buffer_cache/buffer_base.h"
#include "video_core/control/channel_state_cache.h"
#include "video_core/delayed_destruction_ring.h"
@ -41,14 +31,8 @@
#include "video_core/engines/maxwell_3d.h"
#include "video_core/memory_manager.h"
#include "video_core/surface.h"
#include "common/slot_vector.h"
#include "video_core/texture_cache/types.h"
namespace boost {
template <typename T>
class fast_pool_allocator<T, default_user_allocator_new_delete, details::pool::null_mutex, 4096, 0>;
}
namespace VideoCommon {
MICROPROFILE_DECLARE(GPU_PrepareBuffers);
@ -184,7 +168,6 @@ class BufferCache : public VideoCommon::ChannelSetupCaches<BufferCacheChannelInf
static constexpr bool NEEDS_BIND_STORAGE_INDEX = P::NEEDS_BIND_STORAGE_INDEX;
static constexpr bool USE_MEMORY_MAPS = P::USE_MEMORY_MAPS;
static constexpr bool SEPARATE_IMAGE_BUFFERS_BINDINGS = P::SEPARATE_IMAGE_BUFFER_BINDINGS;
static constexpr bool IMPLEMENTS_ASYNC_DOWNLOADS = P::IMPLEMENTS_ASYNC_DOWNLOADS;
static constexpr bool USE_MEMORY_MAPS_FOR_UPLOADS = P::USE_MEMORY_MAPS_FOR_UPLOADS;
static constexpr s64 DEFAULT_EXPECTED_MEMORY = 512_MiB;
@ -202,34 +185,6 @@ class BufferCache : public VideoCommon::ChannelSetupCaches<BufferCacheChannelInf
using Async_Buffer = typename P::Async_Buffer;
using MemoryTracker = typename P::MemoryTracker;
using IntervalCompare = std::less<DAddr>;
using IntervalInstance = boost::icl::interval_type_default<DAddr, std::less>;
using IntervalAllocator = boost::fast_pool_allocator<DAddr>;
using IntervalSet = boost::icl::interval_set<DAddr>;
using IntervalType = typename IntervalSet::interval_type;
template <typename Type>
struct counter_add_functor : public boost::icl::identity_based_inplace_combine<Type> {
// types
typedef counter_add_functor<Type> type;
typedef boost::icl::identity_based_inplace_combine<Type> base_type;
// public member functions
void operator()(Type& current, const Type& added) const {
current += added;
if (current < base_type::identity_element()) {
current = base_type::identity_element();
}
}
// public static functions
static void version(Type&){};
};
using OverlapCombine = counter_add_functor<int>;
using OverlapSection = boost::icl::inter_section<int>;
using OverlapCounter = boost::icl::split_interval_map<DAddr, int>;
struct OverlapResult {
boost::container::small_vector<BufferId, 16> ids;
DAddr begin;
@ -240,6 +195,8 @@ class BufferCache : public VideoCommon::ChannelSetupCaches<BufferCacheChannelInf
public:
explicit BufferCache(Tegra::MaxwellDeviceMemoryManager& device_memory_, Runtime& runtime_);
~BufferCache();
void TickFrame();
void WriteMemory(DAddr device_addr, u64 size);
@ -379,75 +336,6 @@ private:
}
}
template <typename Func>
void ForEachInRangeSet(IntervalSet& current_range, DAddr device_addr, u64 size, Func&& func) {
const DAddr start_address = device_addr;
const DAddr end_address = start_address + size;
const IntervalType search_interval{start_address, end_address};
auto it = current_range.lower_bound(search_interval);
if (it == current_range.end()) {
return;
}
auto end_it = current_range.upper_bound(search_interval);
for (; it != end_it; it++) {
DAddr inter_addr_end = it->upper();
DAddr inter_addr = it->lower();
if (inter_addr_end > end_address) {
inter_addr_end = end_address;
}
if (inter_addr < start_address) {
inter_addr = start_address;
}
func(inter_addr, inter_addr_end);
}
}
template <typename Func>
void ForEachInOverlapCounter(OverlapCounter& current_range, DAddr device_addr, u64 size,
Func&& func) {
const DAddr start_address = device_addr;
const DAddr end_address = start_address + size;
const IntervalType search_interval{start_address, end_address};
auto it = current_range.lower_bound(search_interval);
if (it == current_range.end()) {
return;
}
auto end_it = current_range.upper_bound(search_interval);
for (; it != end_it; it++) {
auto& inter = it->first;
DAddr inter_addr_end = inter.upper();
DAddr inter_addr = inter.lower();
if (inter_addr_end > end_address) {
inter_addr_end = end_address;
}
if (inter_addr < start_address) {
inter_addr = start_address;
}
func(inter_addr, inter_addr_end, it->second);
}
}
void RemoveEachInOverlapCounter(OverlapCounter& current_range,
const IntervalType search_interval, int subtract_value) {
bool any_removals = false;
current_range.add(std::make_pair(search_interval, subtract_value));
do {
any_removals = false;
auto it = current_range.lower_bound(search_interval);
if (it == current_range.end()) {
return;
}
auto end_it = current_range.upper_bound(search_interval);
for (; it != end_it; it++) {
if (it->second <= 0) {
any_removals = true;
current_range.erase(it);
break;
}
}
} while (any_removals);
}
static bool IsRangeGranular(DAddr device_addr, size_t size) {
return (device_addr & ~Core::DEVICE_PAGEMASK) ==
((device_addr + size) & ~Core::DEVICE_PAGEMASK);
@ -552,7 +440,7 @@ private:
[[nodiscard]] bool HasFastUniformBufferBound(size_t stage, u32 binding_index) const noexcept;
void ClearDownload(IntervalType subtract_interval);
void ClearDownload(DAddr base_addr, u64 size);
void InlineMemoryImplementation(DAddr dest_address, size_t copy_size,
std::span<const u8> inlined_buffer);
@ -567,13 +455,12 @@ private:
u32 last_index_count = 0;
MemoryTracker memory_tracker;
IntervalSet uncommitted_ranges;
IntervalSet common_ranges;
IntervalSet cached_ranges;
std::deque<IntervalSet> committed_ranges;
Common::RangeSet<DAddr> uncommitted_gpu_modified_ranges;
Common::RangeSet<DAddr> gpu_modified_ranges;
std::deque<Common::RangeSet<DAddr>> committed_gpu_modified_ranges;
// Async Buffers
OverlapCounter async_downloads;
Common::SplitRangeSet<DAddr> async_downloads;
std::deque<std::optional<Async_Buffer>> async_buffers;
std::deque<boost::container::small_vector<BufferCopy, 4>> pending_downloads;
std::optional<Async_Buffer> current_buffer;

1
src/video_core/renderer_opengl/gl_buffer_cache.h
View file

@ -251,7 +251,6 @@ struct BufferCacheParams {
static constexpr bool NEEDS_BIND_STORAGE_INDEX = true;
static constexpr bool USE_MEMORY_MAPS = true;
static constexpr bool SEPARATE_IMAGE_BUFFER_BINDINGS = true;
static constexpr bool IMPLEMENTS_ASYNC_DOWNLOADS = true;
// TODO: Investigate why OpenGL seems to perform worse with persistently mapped buffer uploads
static constexpr bool USE_MEMORY_MAPS_FOR_UPLOADS = false;

1
src/video_core/renderer_vulkan/vk_buffer_cache.h
View file

@ -181,7 +181,6 @@ struct BufferCacheParams {
static constexpr bool NEEDS_BIND_STORAGE_INDEX = false;
static constexpr bool USE_MEMORY_MAPS = true;
static constexpr bool SEPARATE_IMAGE_BUFFER_BINDINGS = false;
static constexpr bool IMPLEMENTS_ASYNC_DOWNLOADS = true;
static constexpr bool USE_MEMORY_MAPS_FOR_UPLOADS = true;
};