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author | Fernando Sahmkow <fsahmkow27@gmail.com> | 2020-04-01 23:28:49 +0200 |
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committer | Fernando Sahmkow <fsahmkow27@gmail.com> | 2020-06-27 17:36:05 +0200 |
commit | 48fa3b7a0f2054a836b0a8061e6b082c246b5ae0 (patch) | |
tree | 37a09cfb55f13ebf2df2b9a71622c599733100b0 /src/core/host_timing.cpp | |
parent | Kernel/svcBreak: Implement CacheInvalidation for Singlecore and correct svcBreak. (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/core/host_timing.cpp | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/src/core/host_timing.cpp b/src/core/host_timing.cpp deleted file mode 100644 index 2f40de1a1..000000000 --- a/src/core/host_timing.cpp +++ /dev/null @@ -1,206 +0,0 @@ -// Copyright 2020 yuzu Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include "core/host_timing.h" - -#include <algorithm> -#include <mutex> -#include <string> -#include <tuple> - -#include "common/assert.h" -#include "core/core_timing_util.h" - -namespace Core::HostTiming { - -std::shared_ptr<EventType> CreateEvent(std::string name, TimedCallback&& callback) { - return std::make_shared<EventType>(std::move(callback), std::move(name)); -} - -struct CoreTiming::Event { - u64 time; - u64 fifo_order; - u64 userdata; - std::weak_ptr<EventType> type; - - // Sort by time, unless the times are the same, in which case sort by - // the order added to the queue - friend bool operator>(const Event& left, const Event& right) { - return std::tie(left.time, left.fifo_order) > std::tie(right.time, right.fifo_order); - } - - friend bool operator<(const Event& left, const Event& right) { - return std::tie(left.time, left.fifo_order) < std::tie(right.time, right.fifo_order); - } -}; - -CoreTiming::CoreTiming() { - clock = - Common::CreateBestMatchingClock(Core::Hardware::BASE_CLOCK_RATE, Core::Hardware::CNTFREQ); -} - -CoreTiming::~CoreTiming() = default; - -void CoreTiming::ThreadEntry(CoreTiming& instance) { - instance.ThreadLoop(); -} - -void CoreTiming::Initialize() { - event_fifo_id = 0; - const auto empty_timed_callback = [](u64, s64) {}; - ev_lost = CreateEvent("_lost_event", empty_timed_callback); - timer_thread = std::make_unique<std::thread>(ThreadEntry, std::ref(*this)); -} - -void CoreTiming::Shutdown() { - paused = true; - shutting_down = true; - event.Set(); - timer_thread->join(); - ClearPendingEvents(); - timer_thread.reset(); - has_started = false; -} - -void CoreTiming::Pause(bool is_paused) { - paused = is_paused; -} - -void CoreTiming::SyncPause(bool is_paused) { - if (is_paused == paused && paused_set == paused) { - return; - } - Pause(is_paused); - event.Set(); - while (paused_set != is_paused) - ; -} - -bool CoreTiming::IsRunning() const { - return !paused_set; -} - -bool CoreTiming::HasPendingEvents() const { - return !(wait_set && event_queue.empty()); -} - -void CoreTiming::ScheduleEvent(s64 ns_into_future, const std::shared_ptr<EventType>& event_type, - u64 userdata) { - basic_lock.lock(); - const u64 timeout = static_cast<u64>(GetGlobalTimeNs().count() + ns_into_future); - - event_queue.emplace_back(Event{timeout, event_fifo_id++, userdata, event_type}); - - std::push_heap(event_queue.begin(), event_queue.end(), std::greater<>()); - basic_lock.unlock(); - event.Set(); -} - -void CoreTiming::UnscheduleEvent(const std::shared_ptr<EventType>& event_type, u64 userdata) { - basic_lock.lock(); - const auto itr = std::remove_if(event_queue.begin(), event_queue.end(), [&](const Event& e) { - return e.type.lock().get() == event_type.get() && e.userdata == userdata; - }); - - // Removing random items breaks the invariant so we have to re-establish it. - if (itr != event_queue.end()) { - event_queue.erase(itr, event_queue.end()); - std::make_heap(event_queue.begin(), event_queue.end(), std::greater<>()); - } - basic_lock.unlock(); -} - -void CoreTiming::AddTicks(std::size_t core_index, u64 ticks) { - ticks_count[core_index] += ticks; -} - -void CoreTiming::ResetTicks(std::size_t core_index) { - ticks_count[core_index] = 0; -} - -u64 CoreTiming::GetCPUTicks() const { - return clock->GetCPUCycles(); -} - -u64 CoreTiming::GetClockTicks() const { - return clock->GetClockCycles(); -} - -void CoreTiming::ClearPendingEvents() { - event_queue.clear(); -} - -void CoreTiming::RemoveEvent(const std::shared_ptr<EventType>& event_type) { - basic_lock.lock(); - - const auto itr = std::remove_if(event_queue.begin(), event_queue.end(), [&](const Event& e) { - return e.type.lock().get() == event_type.get(); - }); - - // Removing random items breaks the invariant so we have to re-establish it. - if (itr != event_queue.end()) { - event_queue.erase(itr, event_queue.end()); - std::make_heap(event_queue.begin(), event_queue.end(), std::greater<>()); - } - basic_lock.unlock(); -} - -std::optional<u64> CoreTiming::Advance() { - advance_lock.lock(); - basic_lock.lock(); - global_timer = GetGlobalTimeNs().count(); - - while (!event_queue.empty() && event_queue.front().time <= global_timer) { - Event evt = std::move(event_queue.front()); - std::pop_heap(event_queue.begin(), event_queue.end(), std::greater<>()); - event_queue.pop_back(); - basic_lock.unlock(); - - if (auto event_type{evt.type.lock()}) { - event_type->callback(evt.userdata, global_timer - evt.time); - } - - basic_lock.lock(); - } - - if (!event_queue.empty()) { - const u64 next_time = event_queue.front().time - global_timer; - basic_lock.unlock(); - advance_lock.unlock(); - return next_time; - } else { - basic_lock.unlock(); - advance_lock.unlock(); - return std::nullopt; - } -} - -void CoreTiming::ThreadLoop() { - has_started = true; - while (!shutting_down) { - while (!paused) { - paused_set = false; - const auto next_time = Advance(); - if (next_time) { - std::chrono::nanoseconds next_time_ns = std::chrono::nanoseconds(*next_time); - event.WaitFor(next_time_ns); - } else { - wait_set = true; - event.Wait(); - } - wait_set = false; - } - paused_set = true; - } -} - -std::chrono::nanoseconds CoreTiming::GetGlobalTimeNs() const { - return clock->GetTimeNS(); -} - -std::chrono::microseconds CoreTiming::GetGlobalTimeUs() const { - return clock->GetTimeUS(); -} - -} // namespace Core::HostTiming |