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Merge pull request #10859 from liamwhite/no-more-atomic-wait
general: remove atomic signal and wait
This commit is contained in:
commit
a674022434
9 changed files with 26 additions and 40 deletions
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@ -55,7 +55,7 @@ public:
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is_set = false;
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}
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[[nodiscard]] bool IsSet() {
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[[nodiscard]] bool IsSet() const {
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return is_set;
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}
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@ -43,14 +43,10 @@ void Nvnflinger::SplitVSync(std::stop_token stop_token) {
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Common::SetCurrentThreadPriority(Common::ThreadPriority::High);
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while (!stop_token.stop_requested()) {
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vsync_signal.wait(false);
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vsync_signal.store(false);
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guard->lock();
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vsync_signal.Wait();
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const auto lock_guard = Lock();
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Compose();
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guard->unlock();
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}
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}
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@ -69,9 +65,8 @@ Nvnflinger::Nvnflinger(Core::System& system_, HosBinderDriverServer& hos_binder_
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"ScreenComposition",
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[this](std::uintptr_t, s64 time,
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std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
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vsync_signal.store(true);
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{ const auto lock_guard = Lock(); }
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vsync_signal.notify_one();
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vsync_signal.Set();
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return std::chrono::nanoseconds(GetNextTicks());
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});
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@ -97,8 +92,7 @@ Nvnflinger::~Nvnflinger() {
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if (system.IsMulticore()) {
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system.CoreTiming().UnscheduleEvent(multi_composition_event, {});
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vsync_thread.request_stop();
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vsync_signal.store(true);
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vsync_signal.notify_all();
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vsync_signal.Set();
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} else {
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system.CoreTiming().UnscheduleEvent(single_composition_event, {});
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}
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@ -12,6 +12,7 @@
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#include "common/common_types.h"
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#include "common/polyfill_thread.h"
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#include "common/thread.h"
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#include "core/hle/result.h"
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#include "core/hle/service/kernel_helpers.h"
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@ -143,7 +144,7 @@ private:
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Core::System& system;
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std::atomic<bool> vsync_signal;
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Common::Event vsync_signal;
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std::jthread vsync_thread;
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@ -44,7 +44,7 @@ ServerManager::~ServerManager() {
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m_event->Signal();
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// Wait for processing to stop.
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m_stopped.wait(false);
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m_stopped.Wait();
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m_threads.clear();
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// Clean up ports.
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@ -182,10 +182,7 @@ void ServerManager::StartAdditionalHostThreads(const char* name, size_t num_thre
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}
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Result ServerManager::LoopProcess() {
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SCOPE_EXIT({
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m_stopped.store(true);
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m_stopped.notify_all();
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});
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SCOPE_EXIT({ m_stopped.Set(); });
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R_RETURN(this->LoopProcessImpl());
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}
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@ -3,7 +3,6 @@
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#pragma once
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#include <atomic>
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#include <functional>
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#include <list>
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#include <map>
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@ -12,6 +11,7 @@
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#include <vector>
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#include "common/polyfill_thread.h"
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#include "common/thread.h"
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#include "core/hle/result.h"
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#include "core/hle/service/mutex.h"
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@ -82,7 +82,7 @@ private:
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std::list<RequestState> m_deferrals{};
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// Host state tracking
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std::atomic<bool> m_stopped{};
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Common::Event m_stopped{};
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std::vector<std::jthread> m_threads{};
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std::stop_source m_stop_source{};
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};
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@ -75,15 +75,9 @@ void MasterSemaphore::Refresh() {
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void MasterSemaphore::Wait(u64 tick) {
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if (!semaphore) {
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// If we don't support timeline semaphores, use an atomic wait
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while (true) {
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u64 current_value = gpu_tick.load(std::memory_order_relaxed);
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if (current_value >= tick) {
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return;
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}
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gpu_tick.wait(current_value);
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}
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// If we don't support timeline semaphores, wait for the value normally
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std::unique_lock lk{free_mutex};
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free_cv.wait(lk, [&] { return gpu_tick.load(std::memory_order_relaxed) >= tick; });
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return;
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}
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@ -198,11 +192,13 @@ void MasterSemaphore::WaitThread(std::stop_token token) {
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fence.Wait();
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fence.Reset();
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gpu_tick.store(host_tick);
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gpu_tick.notify_all();
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{
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std::scoped_lock lock{free_mutex};
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free_queue.push_front(std::move(fence));
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gpu_tick.store(host_tick);
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}
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free_cv.notify_one();
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}
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}
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@ -72,6 +72,7 @@ private:
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std::atomic<u64> current_tick{1}; ///< Current logical tick.
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std::mutex wait_mutex;
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std::mutex free_mutex;
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std::condition_variable free_cv;
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std::condition_variable_any wait_cv;
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std::queue<Waitable> wait_queue; ///< Queue for the fences to be waited on by the wait thread.
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std::deque<vk::Fence> free_queue; ///< Holds available fences for submission.
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@ -105,14 +105,12 @@ void EmuThread::run() {
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std::unique_lock lk{m_should_run_mutex};
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if (m_should_run) {
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m_system.Run();
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m_is_running.store(true);
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m_is_running.notify_all();
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m_stopped.Reset();
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Common::CondvarWait(m_should_run_cv, lk, stop_token, [&] { return !m_should_run; });
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} else {
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m_system.Pause();
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m_is_running.store(false);
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m_is_running.notify_all();
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m_stopped.Set();
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EmulationPaused(lk);
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Common::CondvarWait(m_should_run_cv, lk, stop_token, [&] { return m_should_run; });
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@ -3,7 +3,6 @@
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#pragma once
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#include <atomic>
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#include <condition_variable>
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#include <cstddef>
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#include <memory>
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@ -88,7 +87,7 @@ public:
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// Wait until paused, if pausing.
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if (!should_run) {
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m_is_running.wait(true);
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m_stopped.Wait();
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}
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}
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@ -97,7 +96,7 @@ public:
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* @return True if the emulation thread is running, otherwise false
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*/
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bool IsRunning() const {
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return m_is_running.load() || m_should_run;
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return m_should_run;
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}
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/**
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@ -118,7 +117,7 @@ private:
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std::stop_source m_stop_source;
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std::mutex m_should_run_mutex;
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std::condition_variable_any m_should_run_cv;
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std::atomic<bool> m_is_running{false};
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Common::Event m_stopped;
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bool m_should_run{true};
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signals:
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