From 1586f1c0b174bec6b1db7de48b46ff75e29f3bb2 Mon Sep 17 00:00:00 2001 From: Liam Date: Tue, 20 Jun 2023 11:41:38 -0400 Subject: [PATCH] general: remove atomic signal and wait --- src/common/thread.h | 2 +- .../hle/service/nvnflinger/nvnflinger.cpp | 14 ++++-------- src/core/hle/service/nvnflinger/nvnflinger.h | 3 ++- src/core/hle/service/server_manager.cpp | 7 ++---- src/core/hle/service/server_manager.h | 4 ++-- .../renderer_vulkan/vk_master_semaphore.cpp | 22 ++++++++----------- .../renderer_vulkan/vk_master_semaphore.h | 1 + src/yuzu/bootmanager.cpp | 6 ++--- src/yuzu/bootmanager.h | 7 +++--- 9 files changed, 26 insertions(+), 40 deletions(-) diff --git a/src/common/thread.h b/src/common/thread.h index 8ae169b4eb..c6976fb6cd 100644 --- a/src/common/thread.h +++ b/src/common/thread.h @@ -55,7 +55,7 @@ public: is_set = false; } - [[nodiscard]] bool IsSet() { + [[nodiscard]] bool IsSet() const { return is_set; } diff --git a/src/core/hle/service/nvnflinger/nvnflinger.cpp b/src/core/hle/service/nvnflinger/nvnflinger.cpp index b41c6240cc..5f55cd31e0 100644 --- a/src/core/hle/service/nvnflinger/nvnflinger.cpp +++ b/src/core/hle/service/nvnflinger/nvnflinger.cpp @@ -43,14 +43,10 @@ void Nvnflinger::SplitVSync(std::stop_token stop_token) { Common::SetCurrentThreadPriority(Common::ThreadPriority::High); while (!stop_token.stop_requested()) { - vsync_signal.wait(false); - vsync_signal.store(false); - - guard->lock(); + vsync_signal.Wait(); + const auto lock_guard = Lock(); Compose(); - - guard->unlock(); } } @@ -69,9 +65,8 @@ Nvnflinger::Nvnflinger(Core::System& system_, HosBinderDriverServer& hos_binder_ "ScreenComposition", [this](std::uintptr_t, s64 time, std::chrono::nanoseconds ns_late) -> std::optional { - vsync_signal.store(true); { const auto lock_guard = Lock(); } - vsync_signal.notify_one(); + vsync_signal.Set(); return std::chrono::nanoseconds(GetNextTicks()); }); @@ -97,8 +92,7 @@ Nvnflinger::~Nvnflinger() { if (system.IsMulticore()) { system.CoreTiming().UnscheduleEvent(multi_composition_event, {}); vsync_thread.request_stop(); - vsync_signal.store(true); - vsync_signal.notify_all(); + vsync_signal.Set(); } else { system.CoreTiming().UnscheduleEvent(single_composition_event, {}); } diff --git a/src/core/hle/service/nvnflinger/nvnflinger.h b/src/core/hle/service/nvnflinger/nvnflinger.h index a043cceb2d..ef236303ab 100644 --- a/src/core/hle/service/nvnflinger/nvnflinger.h +++ b/src/core/hle/service/nvnflinger/nvnflinger.h @@ -12,6 +12,7 @@ #include "common/common_types.h" #include "common/polyfill_thread.h" +#include "common/thread.h" #include "core/hle/result.h" #include "core/hle/service/kernel_helpers.h" @@ -143,7 +144,7 @@ private: Core::System& system; - std::atomic vsync_signal; + Common::Event vsync_signal; std::jthread vsync_thread; diff --git a/src/core/hle/service/server_manager.cpp b/src/core/hle/service/server_manager.cpp index 156bc27d8b..d1e99b1843 100644 --- a/src/core/hle/service/server_manager.cpp +++ b/src/core/hle/service/server_manager.cpp @@ -44,7 +44,7 @@ ServerManager::~ServerManager() { m_event->Signal(); // Wait for processing to stop. - m_stopped.wait(false); + m_stopped.Wait(); m_threads.clear(); // Clean up ports. @@ -182,10 +182,7 @@ void ServerManager::StartAdditionalHostThreads(const char* name, size_t num_thre } Result ServerManager::LoopProcess() { - SCOPE_EXIT({ - m_stopped.store(true); - m_stopped.notify_all(); - }); + SCOPE_EXIT({ m_stopped.Set(); }); R_RETURN(this->LoopProcessImpl()); } diff --git a/src/core/hle/service/server_manager.h b/src/core/hle/service/server_manager.h index fdb8af2ff1..58b0a08320 100644 --- a/src/core/hle/service/server_manager.h +++ b/src/core/hle/service/server_manager.h @@ -3,7 +3,6 @@ #pragma once -#include #include #include #include @@ -12,6 +11,7 @@ #include #include "common/polyfill_thread.h" +#include "common/thread.h" #include "core/hle/result.h" #include "core/hle/service/mutex.h" @@ -82,7 +82,7 @@ private: std::list m_deferrals{}; // Host state tracking - std::atomic m_stopped{}; + Common::Event m_stopped{}; std::vector m_threads{}; std::stop_source m_stop_source{}; }; diff --git a/src/video_core/renderer_vulkan/vk_master_semaphore.cpp b/src/video_core/renderer_vulkan/vk_master_semaphore.cpp index 5eeda08d2d..6b288b994f 100644 --- a/src/video_core/renderer_vulkan/vk_master_semaphore.cpp +++ b/src/video_core/renderer_vulkan/vk_master_semaphore.cpp @@ -75,15 +75,9 @@ void MasterSemaphore::Refresh() { void MasterSemaphore::Wait(u64 tick) { if (!semaphore) { - // If we don't support timeline semaphores, use an atomic wait - while (true) { - u64 current_value = gpu_tick.load(std::memory_order_relaxed); - if (current_value >= tick) { - return; - } - gpu_tick.wait(current_value); - } - + // If we don't support timeline semaphores, wait for the value normally + std::unique_lock lk{free_mutex}; + free_cv.wait(lk, [&] { return gpu_tick.load(std::memory_order_relaxed) >= tick; }); return; } @@ -198,11 +192,13 @@ void MasterSemaphore::WaitThread(std::stop_token token) { fence.Wait(); fence.Reset(); - gpu_tick.store(host_tick); - gpu_tick.notify_all(); - std::scoped_lock lock{free_mutex}; - free_queue.push_front(std::move(fence)); + { + std::scoped_lock lock{free_mutex}; + free_queue.push_front(std::move(fence)); + gpu_tick.store(host_tick); + } + free_cv.notify_one(); } } diff --git a/src/video_core/renderer_vulkan/vk_master_semaphore.h b/src/video_core/renderer_vulkan/vk_master_semaphore.h index 1e7c902157..3f599d7bd8 100644 --- a/src/video_core/renderer_vulkan/vk_master_semaphore.h +++ b/src/video_core/renderer_vulkan/vk_master_semaphore.h @@ -72,6 +72,7 @@ private: std::atomic current_tick{1}; ///< Current logical tick. std::mutex wait_mutex; std::mutex free_mutex; + std::condition_variable free_cv; std::condition_variable_any wait_cv; std::queue wait_queue; ///< Queue for the fences to be waited on by the wait thread. std::deque free_queue; ///< Holds available fences for submission. diff --git a/src/yuzu/bootmanager.cpp b/src/yuzu/bootmanager.cpp index cc6b6a25ab..bdd1497b52 100644 --- a/src/yuzu/bootmanager.cpp +++ b/src/yuzu/bootmanager.cpp @@ -105,14 +105,12 @@ void EmuThread::run() { std::unique_lock lk{m_should_run_mutex}; if (m_should_run) { m_system.Run(); - m_is_running.store(true); - m_is_running.notify_all(); + m_stopped.Reset(); Common::CondvarWait(m_should_run_cv, lk, stop_token, [&] { return !m_should_run; }); } else { m_system.Pause(); - m_is_running.store(false); - m_is_running.notify_all(); + m_stopped.Set(); EmulationPaused(lk); Common::CondvarWait(m_should_run_cv, lk, stop_token, [&] { return m_should_run; }); diff --git a/src/yuzu/bootmanager.h b/src/yuzu/bootmanager.h index b7b9d41416..87b23df123 100644 --- a/src/yuzu/bootmanager.h +++ b/src/yuzu/bootmanager.h @@ -3,7 +3,6 @@ #pragma once -#include #include #include #include @@ -88,7 +87,7 @@ public: // Wait until paused, if pausing. if (!should_run) { - m_is_running.wait(true); + m_stopped.Wait(); } } @@ -97,7 +96,7 @@ public: * @return True if the emulation thread is running, otherwise false */ bool IsRunning() const { - return m_is_running.load() || m_should_run; + return m_should_run; } /** @@ -118,7 +117,7 @@ private: std::stop_source m_stop_source; std::mutex m_should_run_mutex; std::condition_variable_any m_should_run_cv; - std::atomic m_is_running{false}; + Common::Event m_stopped; bool m_should_run{true}; signals: