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QueryCache: rework async downloads.

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This commit is contained in:
Fernando Sahmkow
2023-04-23 21:55:16 +02:00
parent 7e76c1642c
commit e29ced29fa
7 changed files with 118 additions and 45 deletions
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122
src/video_core/query_cache.h
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@ -17,13 +17,19 @@
#include "common/assert.h"
#include "common/settings.h"
#include "core/memory.h"
#include "video_core/control/channel_state_cache.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/memory_manager.h"
#include "video_core/rasterizer_interface.h"
#include "video_core/texture_cache/slot_vector.h"
namespace VideoCommon {
using AsyncJobId = SlotId;
static constexpr AsyncJobId NULL_ASYNC_JOB_ID{0};
template <class QueryCache, class HostCounter>
class CounterStreamBase {
public:
@ -93,9 +99,13 @@ private:
template <class QueryCache, class CachedQuery, class CounterStream, class HostCounter>
class QueryCacheBase : public VideoCommon::ChannelSetupCaches<VideoCommon::ChannelInfo> {
public:
explicit QueryCacheBase(VideoCore::RasterizerInterface& rasterizer_)
: rasterizer{rasterizer_}, streams{{CounterStream{static_cast<QueryCache&>(*this),
VideoCore::QueryType::SamplesPassed}}} {}
explicit QueryCacheBase(VideoCore::RasterizerInterface& rasterizer_,
Core::Memory::Memory& cpu_memory_)
: rasterizer{rasterizer_}, cpu_memory{cpu_memory_}, streams{
{CounterStream{static_cast<QueryCache&>(*this),
VideoCore::QueryType::SamplesPassed}}} {
(void) slot_async_jobs.insert(); // Null value
}
void InvalidateRegion(VAddr addr, std::size_t size) {
std::unique_lock lock{mutex};
@ -126,10 +136,15 @@ public:
query = Register(type, *cpu_addr, host_ptr, timestamp.has_value());
}
query->BindCounter(Stream(type).Current(), timestamp);
if (Settings::values.use_asynchronous_gpu_emulation.GetValue()) {
AsyncFlushQuery(*cpu_addr);
auto result = query->BindCounter(Stream(type).Current());
if (result) {
auto async_job_id = query->GetAsyncJob();
auto& async_job = slot_async_jobs[async_job_id];
async_job.collected = true;
async_job.value = *result;
query->SetAsyncJob(NULL_ASYNC_JOB_ID);
}
AsyncFlushQuery(query, timestamp, lock);
}
/// Updates counters from GPU state. Expected to be called once per draw, clear or dispatch.
@ -201,15 +216,25 @@ public:
committed_flushes.pop_front();
return;
}
for (VAddr query_address : *flush_list) {
FlushAndRemoveRegion(query_address, 4);
for (AsyncJobId async_job_id : *flush_list) {
AsyncJob& async_job = slot_async_jobs[async_job_id];
if (!async_job.collected) {
FlushAndRemoveRegion(async_job.query_location, 2, true);
}
}
committed_flushes.pop_front();
}
private:
struct AsyncJob {
bool collected = false;
u64 value = 0;
VAddr query_location = 0;
std::optional<u64> timestamp{};
};
/// Flushes a memory range to guest memory and removes it from the cache.
void FlushAndRemoveRegion(VAddr addr, std::size_t size) {
void FlushAndRemoveRegion(VAddr addr, std::size_t size, bool async = false) {
const u64 addr_begin = addr;
const u64 addr_end = addr_begin + size;
const auto in_range = [addr_begin, addr_end](const CachedQuery& query) {
@ -230,7 +255,16 @@ private:
continue;
}
rasterizer.UpdatePagesCachedCount(query.GetCpuAddr(), query.SizeInBytes(), -1);
query.Flush();
AsyncJobId async_job_id = query.GetAsyncJob();
auto flush_result = query.Flush(async);
if (async_job_id == NULL_ASYNC_JOB_ID) {
ASSERT_MSG(false, "This should not be reachable at all");
continue;
}
AsyncJob& async_job = slot_async_jobs[async_job_id];
async_job.collected = true;
async_job.value = flush_result;
query.SetAsyncJob(NULL_ASYNC_JOB_ID);
}
std::erase_if(contents, in_range);
}
@ -257,17 +291,43 @@ private:
return found != std::end(contents) ? &*found : nullptr;
}
void AsyncFlushQuery(VAddr addr) {
void AsyncFlushQuery(CachedQuery* query, std::optional<u64> timestamp,
std::unique_lock<std::recursive_mutex>& lock) {
const AsyncJobId new_async_job_id = slot_async_jobs.insert();
AsyncJob& async_job = slot_async_jobs[new_async_job_id];
query->SetAsyncJob(new_async_job_id);
async_job.query_location = query->GetCpuAddr();
async_job.collected = false;
if (!uncommitted_flushes) {
uncommitted_flushes = std::make_shared<std::vector<VAddr>>();
uncommitted_flushes = std::make_shared<std::vector<AsyncJobId>>();
}
uncommitted_flushes->push_back(addr);
uncommitted_flushes->push_back(new_async_job_id);
lock.unlock();
std::function<void()> operation([this, new_async_job_id, timestamp] {
std::unique_lock local_lock{mutex};
AsyncJob& async_job = slot_async_jobs[new_async_job_id];
if (timestamp) {
u64 timestamp_value = *timestamp;
cpu_memory.WriteBlockUnsafe(async_job.query_location + sizeof(u64),
&timestamp_value, sizeof(8));
cpu_memory.WriteBlockUnsafe(async_job.query_location, &async_job.value, sizeof(8));
} else {
u32 small_value = static_cast<u32>(async_job.value);
cpu_memory.WriteBlockUnsafe(async_job.query_location, &small_value, sizeof(u32));
}
slot_async_jobs.erase(new_async_job_id);
});
rasterizer.SyncOperation(std::move(operation));
}
static constexpr std::uintptr_t YUZU_PAGESIZE = 4096;
static constexpr unsigned YUZU_PAGEBITS = 12;
SlotVector<AsyncJob> slot_async_jobs;
VideoCore::RasterizerInterface& rasterizer;
Core::Memory::Memory& cpu_memory;
mutable std::recursive_mutex mutex;
@ -275,8 +335,8 @@ private:
std::array<CounterStream, VideoCore::NumQueryTypes> streams;
std::shared_ptr<std::vector<VAddr>> uncommitted_flushes{};
std::list<std::shared_ptr<std::vector<VAddr>>> committed_flushes;
std::shared_ptr<std::vector<AsyncJobId>> uncommitted_flushes{};
std::list<std::shared_ptr<std::vector<AsyncJobId>>> committed_flushes;
};
template <class QueryCache, class HostCounter>
@ -295,12 +355,12 @@ public:
virtual ~HostCounterBase() = default;
/// Returns the current value of the query.
u64 Query() {
u64 Query(bool async = false) {
if (result) {
return *result;
}
u64 value = BlockingQuery() + base_result;
u64 value = BlockingQuery(async) + base_result;
if (dependency) {
value += dependency->Query();
dependency = nullptr;
@ -321,7 +381,7 @@ public:
protected:
/// Returns the value of query from the backend API blocking as needed.
virtual u64 BlockingQuery() const = 0;
virtual u64 BlockingQuery(bool async = false) const = 0;
private:
std::shared_ptr<HostCounter> dependency; ///< Counter to add to this value.
@ -344,26 +404,23 @@ public:
CachedQueryBase& operator=(const CachedQueryBase&) = delete;
/// Flushes the query to guest memory.
virtual void Flush() {
virtual u64 Flush(bool async = false) {
// When counter is nullptr it means that it's just been reset. We are supposed to write a
// zero in these cases.
const u64 value = counter ? counter->Query() : 0;
std::memcpy(host_ptr, &value, sizeof(u64));
if (timestamp) {
std::memcpy(host_ptr + TIMESTAMP_OFFSET, &*timestamp, sizeof(u64));
}
const u64 value = counter ? counter->Query(async) : 0;
return value;
}
/// Binds a counter to this query.
void BindCounter(std::shared_ptr<HostCounter> counter_, std::optional<u64> timestamp_) {
std::optional<u64> BindCounter(std::shared_ptr<HostCounter> counter_) {
std::optional<u64> result{};
if (counter) {
// If there's an old counter set it means the query is being rewritten by the game.
// To avoid losing the data forever, flush here.
Flush();
result = std::make_optional(Flush());
}
counter = std::move(counter_);
timestamp = timestamp_;
return result;
}
VAddr GetCpuAddr() const noexcept {
@ -378,6 +435,14 @@ public:
return with_timestamp ? LARGE_QUERY_SIZE : SMALL_QUERY_SIZE;
}
void SetAsyncJob(AsyncJobId assigned_async_job_) {
assigned_async_job = assigned_async_job_;
}
AsyncJobId GetAsyncJob() const {
return assigned_async_job;
}
protected:
/// Returns true when querying the counter may potentially block.
bool WaitPending() const noexcept {
@ -393,6 +458,7 @@ private:
u8* host_ptr; ///< Writable host pointer.
std::shared_ptr<HostCounter> counter; ///< Host counter to query, owns the dependency tree.
std::optional<u64> timestamp; ///< Timestamp to flush to guest memory.
AsyncJobId assigned_async_job;
};
} // namespace VideoCommon