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buffer_cache: Remove shared pointers 

Removing shared pointers is a first step to be able to use intrusive
objects and keep allocations close to one another in memory.
This commit is contained in:
ReinUsesLisp 2020-05-16 18:07:03 -03:00
parent 599274e3f0
commit 3b0baf746e
2 changed files with 73 additions and 71 deletions
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114
src/video_core/buffer_cache/buffer_cache.h
View File

@ -29,8 +29,6 @@
namespace VideoCommon {
using MapInterval = std::shared_ptr<MapIntervalBase>;
template <typename OwnerBuffer, typename BufferType, typename StreamBuffer>
class BufferCache {
public:
@ -76,7 +74,10 @@ public:
}
auto block = GetBlock(cpu_addr, size);
auto map = MapAddress(block, gpu_addr, cpu_addr, size);
MapInterval* const map = MapAddress(block, gpu_addr, cpu_addr, size);
if (!map) {
return {GetEmptyBuffer(size), 0};
}
if (is_written) {
map->MarkAsModified(true, GetModifiedTicks());
if (Settings::IsGPULevelHigh() && Settings::values.use_asynchronous_gpu_emulation) {
@ -130,11 +131,10 @@ public:
void FlushRegion(VAddr addr, std::size_t size) {
std::lock_guard lock{mutex};
std::vector<MapInterval> objects = GetMapsInRange(addr, size);
std::sort(
objects.begin(), objects.end(),
[](const MapInterval& lhs, const MapInterval& rhs) { return lhs->ticks < rhs->ticks; });
for (auto& object : objects) {
std::vector<MapInterval*> objects = GetMapsInRange(addr, size);
std::sort(objects.begin(), objects.end(),
[](MapInterval* lhs, MapInterval* rhs) { return lhs->ticks < rhs->ticks; });
for (MapInterval* object : objects) {
if (object->is_modified && object->is_registered) {
mutex.unlock();
FlushMap(object);
@ -146,8 +146,8 @@ public:
bool MustFlushRegion(VAddr addr, std::size_t size) {
std::lock_guard lock{mutex};
const std::vector<MapInterval> objects = GetMapsInRange(addr, size);
return std::any_of(objects.cbegin(), objects.cend(), [](const MapInterval& map) {
const std::vector<MapInterval*> objects = GetMapsInRange(addr, size);
return std::any_of(objects.cbegin(), objects.cend(), [](const MapInterval* map) {
return map->is_modified && map->is_registered;
});
}
@ -156,7 +156,7 @@ public:
void InvalidateRegion(VAddr addr, u64 size) {
std::lock_guard lock{mutex};
std::vector<MapInterval> objects = GetMapsInRange(addr, size);
std::vector<MapInterval*> objects = GetMapsInRange(addr, size);
for (auto& object : objects) {
if (object->is_registered) {
Unregister(object);
@ -167,7 +167,7 @@ public:
void OnCPUWrite(VAddr addr, std::size_t size) {
std::lock_guard lock{mutex};
for (const auto& object : GetMapsInRange(addr, size)) {
for (MapInterval* object : GetMapsInRange(addr, size)) {
if (object->is_memory_marked && object->is_registered) {
UnmarkMemory(object);
object->is_sync_pending = true;
@ -179,7 +179,7 @@ public:
void SyncGuestHost() {
std::lock_guard lock{mutex};
for (const auto& object : marked_for_unregister) {
for (auto& object : marked_for_unregister) {
if (object->is_registered) {
object->is_sync_pending = false;
Unregister(object);
@ -190,8 +190,8 @@ public:
void CommitAsyncFlushes() {
if (uncommitted_flushes) {
auto commit_list = std::make_shared<std::list<MapInterval>>();
for (auto& map : *uncommitted_flushes) {
auto commit_list = std::make_shared<std::list<MapInterval*>>();
for (MapInterval* map : *uncommitted_flushes) {
if (map->is_registered && map->is_modified) {
// TODO(Blinkhawk): Implement backend asynchronous flushing
// AsyncFlushMap(map)
@ -226,7 +226,7 @@ public:
committed_flushes.pop_front();
return;
}
for (MapInterval& map : *flush_list) {
for (MapInterval* map : *flush_list) {
if (map->is_registered) {
// TODO(Blinkhawk): Replace this for reading the asynchronous flush
FlushMap(map);
@ -263,26 +263,28 @@ protected:
}
/// Register an object into the cache
void Register(const MapInterval& new_map, bool inherit_written = false) {
const VAddr cpu_addr = new_map->start;
MapInterval* Register(MapInterval new_map, bool inherit_written = false) {
const VAddr cpu_addr = new_map.start;
if (!cpu_addr) {
LOG_CRITICAL(HW_GPU, "Failed to register buffer with unmapped gpu_address 0x{:016x}",
new_map->gpu_addr);
return;
new_map.gpu_addr);
return nullptr;
}
const std::size_t size = new_map->end - new_map->start;
new_map->is_registered = true;
const IntervalType interval{new_map->start, new_map->end};
mapped_addresses.insert({interval, new_map});
const std::size_t size = new_map.end - new_map.start;
new_map.is_registered = true;
const IntervalType interval{new_map.start, new_map.end};
rasterizer.UpdatePagesCachedCount(cpu_addr, size, 1);
new_map->is_memory_marked = true;
new_map.is_memory_marked = true;
if (inherit_written) {
MarkRegionAsWritten(new_map->start, new_map->end - 1);
new_map->is_written = true;
MarkRegionAsWritten(new_map.start, new_map.end - 1);
new_map.is_written = true;
}
mapped_addresses.insert({interval, new_map});
// Temporary hack until this is replaced with boost::intrusive::rbtree
return const_cast<MapInterval*>(&mapped_addresses.find(interval)->second);
}
void UnmarkMemory(const MapInterval& map) {
void UnmarkMemory(MapInterval* map) {
if (!map->is_memory_marked) {
return;
}
@ -292,7 +294,7 @@ protected:
}
/// Unregisters an object from the cache
void Unregister(const MapInterval& map) {
void Unregister(MapInterval* map) {
UnmarkMemory(map);
map->is_registered = false;
if (map->is_sync_pending) {
@ -307,17 +309,12 @@ protected:
}
private:
MapInterval CreateMap(const VAddr start, const VAddr end, const GPUVAddr gpu_addr) {
return std::make_shared<MapIntervalBase>(start, end, gpu_addr);
}
MapInterval MapAddress(const OwnerBuffer& block, const GPUVAddr gpu_addr, const VAddr cpu_addr,
const std::size_t size) {
std::vector<MapInterval> overlaps = GetMapsInRange(cpu_addr, size);
MapInterval* MapAddress(const OwnerBuffer& block, GPUVAddr gpu_addr, VAddr cpu_addr,
std::size_t size) {
std::vector<MapInterval*> overlaps = GetMapsInRange(cpu_addr, size);
if (overlaps.empty()) {
auto& memory_manager = system.GPU().MemoryManager();
const VAddr cpu_addr_end = cpu_addr + size;
MapInterval new_map = CreateMap(cpu_addr, cpu_addr_end, gpu_addr);
if (memory_manager.IsGranularRange(gpu_addr, size)) {
u8* host_ptr = memory_manager.GetPointer(gpu_addr);
UploadBlockData(block, block->GetOffset(cpu_addr), size, host_ptr);
@ -326,13 +323,12 @@ private:
memory_manager.ReadBlockUnsafe(gpu_addr, staging_buffer.data(), size);
UploadBlockData(block, block->GetOffset(cpu_addr), size, staging_buffer.data());
}
Register(new_map);
return new_map;
return Register(MapInterval(cpu_addr, cpu_addr_end, gpu_addr));
}
const VAddr cpu_addr_end = cpu_addr + size;
if (overlaps.size() == 1) {
MapInterval& current_map = overlaps[0];
MapInterval* const current_map = overlaps[0];
if (current_map->IsInside(cpu_addr, cpu_addr_end)) {
return current_map;
}
@ -342,7 +338,7 @@ private:
bool write_inheritance = false;
bool modified_inheritance = false;
// Calculate new buffer parameters
for (auto& overlap : overlaps) {
for (MapInterval* overlap : overlaps) {
new_start = std::min(overlap->start, new_start);
new_end = std::max(overlap->end, new_end);
write_inheritance |= overlap->is_written;
@ -353,19 +349,23 @@ private:
Unregister(overlap);
}
UpdateBlock(block, new_start, new_end, overlaps);
MapInterval new_map = CreateMap(new_start, new_end, new_gpu_addr);
const MapInterval new_map{new_start, new_end, new_gpu_addr};
MapInterval* const map = Register(new_map, write_inheritance);
if (!map) {
return nullptr;
}
if (modified_inheritance) {
new_map->MarkAsModified(true, GetModifiedTicks());
map->MarkAsModified(true, GetModifiedTicks());
if (Settings::IsGPULevelHigh() && Settings::values.use_asynchronous_gpu_emulation) {
MarkForAsyncFlush(new_map);
MarkForAsyncFlush(map);
}
}
Register(new_map, write_inheritance);
return new_map;
return map;
}
void UpdateBlock(const OwnerBuffer& block, VAddr start, VAddr end,
std::vector<MapInterval>& overlaps) {
std::vector<MapInterval*>& overlaps) {
const IntervalType base_interval{start, end};
IntervalSet interval_set{};
interval_set.add(base_interval);
@ -384,15 +384,15 @@ private:
}
}
std::vector<MapInterval> GetMapsInRange(VAddr addr, std::size_t size) {
std::vector<MapInterval*> GetMapsInRange(VAddr addr, std::size_t size) {
if (size == 0) {
return {};
}
std::vector<MapInterval> objects{};
std::vector<MapInterval*> objects;
const IntervalType interval{addr, addr + size};
for (auto& pair : boost::make_iterator_range(mapped_addresses.equal_range(interval))) {
objects.push_back(pair.second);
objects.push_back(&pair.second);
}
return objects;
@ -403,8 +403,8 @@ private:
return ++modified_ticks;
}
void FlushMap(MapInterval map) {
std::size_t size = map->end - map->start;
void FlushMap(MapInterval* map) {
const std::size_t size = map->end - map->start;
OwnerBuffer block = blocks[map->start >> block_page_bits];
staging_buffer.resize(size);
DownloadBlockData(block, block->GetOffset(map->start), size, staging_buffer.data());
@ -545,9 +545,9 @@ private:
return false;
}
void MarkForAsyncFlush(MapInterval& map) {
void MarkForAsyncFlush(MapInterval* map) {
if (!uncommitted_flushes) {
uncommitted_flushes = std::make_shared<std::unordered_set<MapInterval>>();
uncommitted_flushes = std::make_shared<std::unordered_set<MapInterval*>>();
}
uncommitted_flushes->insert(map);
}
@ -581,10 +581,10 @@ private:
u64 modified_ticks = 0;
std::vector<u8> staging_buffer;
std::list<MapInterval> marked_for_unregister;
std::list<MapInterval*> marked_for_unregister;
std::shared_ptr<std::unordered_set<MapInterval>> uncommitted_flushes;
std::list<std::shared_ptr<std::list<MapInterval>>> committed_flushes;
std::shared_ptr<std::unordered_set<MapInterval*>> uncommitted_flushes;
std::list<std::shared_ptr<std::list<MapInterval*>>> committed_flushes;
std::recursive_mutex mutex;
};

30
src/video_core/buffer_cache/map_interval.h
View File

@ -9,30 +9,32 @@
namespace VideoCommon {
struct MapIntervalBase {
constexpr explicit MapIntervalBase(VAddr start, VAddr end, GPUVAddr gpu_addr) noexcept
struct MapInterval {
constexpr explicit MapInterval() noexcept = default;
constexpr explicit MapInterval(VAddr start, VAddr end, GPUVAddr gpu_addr) noexcept
: start{start}, end{end}, gpu_addr{gpu_addr} {}
constexpr bool IsInside(const VAddr other_start, const VAddr other_end) const noexcept {
constexpr bool IsInside(VAddr other_start, VAddr other_end) const noexcept {
return (start <= other_start && other_end <= end);
}
constexpr bool operator==(const MapInterval& rhs) const noexcept {
return start == rhs.start && end == rhs.end;
}
constexpr bool operator!=(const MapInterval& rhs) const noexcept {
return !operator==(rhs);
}
constexpr void MarkAsModified(bool is_modified_, u64 ticks_) noexcept {
is_modified = is_modified_;
ticks = ticks_;
}
constexpr bool operator==(const MapIntervalBase& rhs) const noexcept {
return start == rhs.start && end == rhs.end;
}
constexpr bool operator!=(const MapIntervalBase& rhs) const noexcept {
return !operator==(rhs);
}
VAddr start;
VAddr end;
GPUVAddr gpu_addr;
VAddr start = 0;
VAddr end = 0;
GPUVAddr gpu_addr = 0;
VAddr cpu_addr = 0;
u64 ticks = 0;
bool is_written = false;