diff options
31 files changed, 280 insertions, 429 deletions
diff --git a/src/audio_core/renderer/adsp/adsp.cpp b/src/audio_core/renderer/adsp/adsp.cpp index 74772fc50..b1db31e93 100644 --- a/src/audio_core/renderer/adsp/adsp.cpp +++ b/src/audio_core/renderer/adsp/adsp.cpp @@ -7,7 +7,6 @@ #include "common/logging/log.h" #include "core/core.h" #include "core/core_timing.h" -#include "core/core_timing_util.h" #include "core/memory.h" namespace AudioCore::AudioRenderer::ADSP { diff --git a/src/audio_core/renderer/adsp/audio_renderer.cpp b/src/audio_core/renderer/adsp/audio_renderer.cpp index 8bc39f9f9..9ca716b60 100644 --- a/src/audio_core/renderer/adsp/audio_renderer.cpp +++ b/src/audio_core/renderer/adsp/audio_renderer.cpp @@ -13,7 +13,6 @@ #include "common/thread.h" #include "core/core.h" #include "core/core_timing.h" -#include "core/core_timing_util.h" MICROPROFILE_DEFINE(Audio_Renderer, "Audio", "DSP", MP_RGB(60, 19, 97)); @@ -144,6 +143,7 @@ void AudioRenderer::ThreadFunc(std::stop_token stop_token) { mailbox->ADSPSendMessage(RenderMessage::AudioRenderer_InitializeOK); + // 0.12 seconds (2304000 / 19200000) constexpr u64 max_process_time{2'304'000ULL}; while (!stop_token.stop_requested()) { @@ -184,8 +184,7 @@ void AudioRenderer::ThreadFunc(std::stop_token stop_token) { u64 max_time{max_process_time}; if (index == 1 && command_buffer.applet_resource_user_id == mailbox->GetCommandBuffer(0).applet_resource_user_id) { - max_time = max_process_time - - Core::Timing::CyclesToNs(render_times_taken[0]).count(); + max_time = max_process_time - render_times_taken[0]; if (render_times_taken[0] > max_process_time) { max_time = 0; } diff --git a/src/audio_core/renderer/adsp/command_list_processor.cpp b/src/audio_core/renderer/adsp/command_list_processor.cpp index 7a300d216..3a0f1ae38 100644 --- a/src/audio_core/renderer/adsp/command_list_processor.cpp +++ b/src/audio_core/renderer/adsp/command_list_processor.cpp @@ -9,7 +9,6 @@ #include "common/settings.h" #include "core/core.h" #include "core/core_timing.h" -#include "core/core_timing_util.h" #include "core/memory.h" namespace AudioCore::AudioRenderer::ADSP { diff --git a/src/audio_core/renderer/command/performance/performance.cpp b/src/audio_core/renderer/command/performance/performance.cpp index 985958b03..4a881547f 100644 --- a/src/audio_core/renderer/command/performance/performance.cpp +++ b/src/audio_core/renderer/command/performance/performance.cpp @@ -5,7 +5,6 @@ #include "audio_core/renderer/command/performance/performance.h" #include "core/core.h" #include "core/core_timing.h" -#include "core/core_timing_util.h" namespace AudioCore::AudioRenderer { @@ -18,20 +17,18 @@ void PerformanceCommand::Process(const ADSP::CommandListProcessor& processor) { auto base{entry_address.translated_address}; if (state == PerformanceState::Start) { auto start_time_ptr{reinterpret_cast<u32*>(base + entry_address.entry_start_time_offset)}; - *start_time_ptr = static_cast<u32>( - Core::Timing::CyclesToUs(processor.system->CoreTiming().GetClockTicks() - - processor.start_time - processor.current_processing_time) - .count()); + *start_time_ptr = + static_cast<u32>(processor.system->CoreTiming().GetClockTicks() - processor.start_time - + processor.current_processing_time); } else if (state == PerformanceState::Stop) { auto processed_time_ptr{ reinterpret_cast<u32*>(base + entry_address.entry_processed_time_offset)}; auto entry_count_ptr{ reinterpret_cast<u32*>(base + entry_address.header_entry_count_offset)}; - *processed_time_ptr = static_cast<u32>( - Core::Timing::CyclesToUs(processor.system->CoreTiming().GetClockTicks() - - processor.start_time - processor.current_processing_time) - .count()); + *processed_time_ptr = + static_cast<u32>(processor.system->CoreTiming().GetClockTicks() - processor.start_time - + processor.current_processing_time); (*entry_count_ptr)++; } } diff --git a/src/audio_core/sink/sink_stream.cpp b/src/audio_core/sink/sink_stream.cpp index f44fedfd5..9a718a9cc 100644 --- a/src/audio_core/sink/sink_stream.cpp +++ b/src/audio_core/sink/sink_stream.cpp @@ -15,7 +15,6 @@ #include "common/settings.h" #include "core/core.h" #include "core/core_timing.h" -#include "core/core_timing_util.h" namespace AudioCore::Sink { diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt index efc4a9fe9..3adf13a3f 100644 --- a/src/common/CMakeLists.txt +++ b/src/common/CMakeLists.txt @@ -172,6 +172,8 @@ if(ARCHITECTURE_x86_64) x64/cpu_wait.h x64/native_clock.cpp x64/native_clock.h + x64/rdtsc.cpp + x64/rdtsc.h x64/xbyak_abi.h x64/xbyak_util.h ) diff --git a/src/common/steady_clock.cpp b/src/common/steady_clock.cpp index 782859196..9415eed29 100644 --- a/src/common/steady_clock.cpp +++ b/src/common/steady_clock.cpp @@ -28,13 +28,12 @@ static s64 GetSystemTimeNS() { // GetSystemTimePreciseAsFileTime returns the file time in 100ns units. static constexpr s64 Multiplier = 100; // Convert Windows epoch to Unix epoch. - static constexpr s64 WindowsEpochToUnixEpochNS = 0x19DB1DED53E8000LL; + static constexpr s64 WindowsEpochToUnixEpoch = 0x19DB1DED53E8000LL; FILETIME filetime; GetSystemTimePreciseAsFileTime(&filetime); return Multiplier * ((static_cast<s64>(filetime.dwHighDateTime) << 32) + - static_cast<s64>(filetime.dwLowDateTime)) - - WindowsEpochToUnixEpochNS; + static_cast<s64>(filetime.dwLowDateTime) - WindowsEpochToUnixEpoch); } #endif diff --git a/src/common/wall_clock.cpp b/src/common/wall_clock.cpp index 817e71d52..dc0dcbd68 100644 --- a/src/common/wall_clock.cpp +++ b/src/common/wall_clock.cpp @@ -2,88 +2,75 @@ // SPDX-License-Identifier: GPL-2.0-or-later #include "common/steady_clock.h" -#include "common/uint128.h" #include "common/wall_clock.h" #ifdef ARCHITECTURE_x86_64 #include "common/x64/cpu_detect.h" #include "common/x64/native_clock.h" +#include "common/x64/rdtsc.h" #endif namespace Common { class StandardWallClock final : public WallClock { public: - explicit StandardWallClock(u64 emulated_cpu_frequency_, u64 emulated_clock_frequency_) - : WallClock{emulated_cpu_frequency_, emulated_clock_frequency_, false}, - start_time{SteadyClock::Now()} {} + explicit StandardWallClock() : start_time{SteadyClock::Now()} {} - std::chrono::nanoseconds GetTimeNS() override { + std::chrono::nanoseconds GetTimeNS() const override { return SteadyClock::Now() - start_time; } - std::chrono::microseconds GetTimeUS() override { - return std::chrono::duration_cast<std::chrono::microseconds>(GetTimeNS()); + std::chrono::microseconds GetTimeUS() const override { + return static_cast<std::chrono::microseconds>(GetHostTicksElapsed() / NsToUsRatio::den); } - std::chrono::milliseconds GetTimeMS() override { - return std::chrono::duration_cast<std::chrono::milliseconds>(GetTimeNS()); + std::chrono::milliseconds GetTimeMS() const override { + return static_cast<std::chrono::milliseconds>(GetHostTicksElapsed() / NsToMsRatio::den); } - u64 GetClockCycles() override { - const u128 temp = Common::Multiply64Into128(GetTimeNS().count(), emulated_clock_frequency); - return Common::Divide128On32(temp, NS_RATIO).first; + u64 GetCNTPCT() const override { + return GetHostTicksElapsed() * NsToCNTPCTRatio::num / NsToCNTPCTRatio::den; } - u64 GetCPUCycles() override { - const u128 temp = Common::Multiply64Into128(GetTimeNS().count(), emulated_cpu_frequency); - return Common::Divide128On32(temp, NS_RATIO).first; + u64 GetGPUTick() const override { + return GetHostTicksElapsed() * NsToGPUTickRatio::num / NsToGPUTickRatio::den; } - void Pause([[maybe_unused]] bool is_paused) override { - // Do nothing in this clock type. + u64 GetHostTicksNow() const override { + return static_cast<u64>(SteadyClock::Now().time_since_epoch().count()); + } + + u64 GetHostTicksElapsed() const override { + return static_cast<u64>(GetTimeNS().count()); + } + + bool IsNative() const override { + return false; } private: SteadyClock::time_point start_time; }; +std::unique_ptr<WallClock> CreateOptimalClock() { #ifdef ARCHITECTURE_x86_64 - -std::unique_ptr<WallClock> CreateBestMatchingClock(u64 emulated_cpu_frequency, - u64 emulated_clock_frequency) { const auto& caps = GetCPUCaps(); - u64 rtsc_frequency = 0; - if (caps.invariant_tsc) { - rtsc_frequency = caps.tsc_frequency ? caps.tsc_frequency : EstimateRDTSCFrequency(); - } - // Fallback to StandardWallClock if the hardware TSC does not have the precision greater than: - // - A nanosecond - // - The emulated CPU frequency - // - The emulated clock counter frequency (CNTFRQ) - if (rtsc_frequency <= WallClock::NS_RATIO || rtsc_frequency <= emulated_cpu_frequency || - rtsc_frequency <= emulated_clock_frequency) { - return std::make_unique<StandardWallClock>(emulated_cpu_frequency, - emulated_clock_frequency); + if (caps.invariant_tsc && caps.tsc_frequency >= WallClock::GPUTickFreq) { + return std::make_unique<X64::NativeClock>(caps.tsc_frequency); } else { - return std::make_unique<X64::NativeClock>(emulated_cpu_frequency, emulated_clock_frequency, - rtsc_frequency); + // Fallback to StandardWallClock if the hardware TSC + // - Is not invariant + // - Is not more precise than GPUTickFreq + return std::make_unique<StandardWallClock>(); } -} - #else - -std::unique_ptr<WallClock> CreateBestMatchingClock(u64 emulated_cpu_frequency, - u64 emulated_clock_frequency) { - return std::make_unique<StandardWallClock>(emulated_cpu_frequency, emulated_clock_frequency); -} - + return std::make_unique<StandardWallClock>(); #endif +} -std::unique_ptr<WallClock> CreateStandardWallClock(u64 emulated_cpu_frequency, - u64 emulated_clock_frequency) { - return std::make_unique<StandardWallClock>(emulated_cpu_frequency, emulated_clock_frequency); +std::unique_ptr<WallClock> CreateStandardWallClock() { + return std::make_unique<StandardWallClock>(); } } // namespace Common diff --git a/src/common/wall_clock.h b/src/common/wall_clock.h index 157ec5eae..f45d3d8c5 100644 --- a/src/common/wall_clock.h +++ b/src/common/wall_clock.h @@ -5,6 +5,7 @@ #include <chrono> #include <memory> +#include <ratio> #include "common/common_types.h" @@ -12,50 +13,82 @@ namespace Common { class WallClock { public: - static constexpr u64 NS_RATIO = 1'000'000'000; - static constexpr u64 US_RATIO = 1'000'000; - static constexpr u64 MS_RATIO = 1'000; + static constexpr u64 CNTFRQ = 19'200'000; // CNTPCT_EL0 Frequency = 19.2 MHz + static constexpr u64 GPUTickFreq = 614'400'000; // GM20B GPU Tick Frequency = 614.4 MHz + static constexpr u64 CPUTickFreq = 1'020'000'000; // T210/4 A57 CPU Tick Frequency = 1020.0 MHz virtual ~WallClock() = default; - /// Returns current wall time in nanoseconds - [[nodiscard]] virtual std::chrono::nanoseconds GetTimeNS() = 0; + /// @returns The time in nanoseconds since the construction of this clock. + virtual std::chrono::nanoseconds GetTimeNS() const = 0; - /// Returns current wall time in microseconds - [[nodiscard]] virtual std::chrono::microseconds GetTimeUS() = 0; + /// @returns The time in microseconds since the construction of this clock. + virtual std::chrono::microseconds GetTimeUS() const = 0; - /// Returns current wall time in milliseconds - [[nodiscard]] virtual std::chrono::milliseconds GetTimeMS() = 0; + /// @returns The time in milliseconds since the construction of this clock. + virtual std::chrono::milliseconds GetTimeMS() const = 0; - /// Returns current wall time in emulated clock cycles - [[nodiscard]] virtual u64 GetClockCycles() = 0; + /// @returns The guest CNTPCT ticks since the construction of this clock. + virtual u64 GetCNTPCT() const = 0; - /// Returns current wall time in emulated cpu cycles - [[nodiscard]] virtual u64 GetCPUCycles() = 0; + /// @returns The guest GPU ticks since the construction of this clock. + virtual u64 GetGPUTick() const = 0; - virtual void Pause(bool is_paused) = 0; + /// @returns The raw host timer ticks since an indeterminate epoch. + virtual u64 GetHostTicksNow() const = 0; - /// Tells if the wall clock, uses the host CPU's hardware clock - [[nodiscard]] bool IsNative() const { - return is_native; + /// @returns The raw host timer ticks since the construction of this clock. + virtual u64 GetHostTicksElapsed() const = 0; + + /// @returns Whether the clock directly uses the host's hardware clock. + virtual bool IsNative() const = 0; + + static inline u64 NSToCNTPCT(u64 ns) { + return ns * NsToCNTPCTRatio::num / NsToCNTPCTRatio::den; + } + + static inline u64 NSToGPUTick(u64 ns) { + return ns * NsToGPUTickRatio::num / NsToGPUTickRatio::den; + } + + // Cycle Timing + + static inline u64 CPUTickToNS(u64 cpu_tick) { + return cpu_tick * CPUTickToNsRatio::num / CPUTickToNsRatio::den; + } + + static inline u64 CPUTickToUS(u64 cpu_tick) { + return cpu_tick * CPUTickToUsRatio::num / CPUTickToUsRatio::den; + } + + static inline u64 CPUTickToCNTPCT(u64 cpu_tick) { + return cpu_tick * CPUTickToCNTPCTRatio::num / CPUTickToCNTPCTRatio::den; + } + + static inline u64 CPUTickToGPUTick(u64 cpu_tick) { + return cpu_tick * CPUTickToGPUTickRatio::num / CPUTickToGPUTickRatio::den; } protected: - explicit WallClock(u64 emulated_cpu_frequency_, u64 emulated_clock_frequency_, bool is_native_) - : emulated_cpu_frequency{emulated_cpu_frequency_}, - emulated_clock_frequency{emulated_clock_frequency_}, is_native{is_native_} {} + using NsRatio = std::nano; + using UsRatio = std::micro; + using MsRatio = std::milli; + + using NsToUsRatio = std::ratio_divide<std::nano, std::micro>; + using NsToMsRatio = std::ratio_divide<std::nano, std::milli>; + using NsToCNTPCTRatio = std::ratio<CNTFRQ, std::nano::den>; + using NsToGPUTickRatio = std::ratio<GPUTickFreq, std::nano::den>; - u64 emulated_cpu_frequency; - u64 emulated_clock_frequency; + // Cycle Timing -private: - bool is_native; + using CPUTickToNsRatio = std::ratio<std::nano::den, CPUTickFreq>; + using CPUTickToUsRatio = std::ratio<std::micro::den, CPUTickFreq>; + using CPUTickToCNTPCTRatio = std::ratio<CNTFRQ, CPUTickFreq>; + using CPUTickToGPUTickRatio = std::ratio<GPUTickFreq, CPUTickFreq>; }; -[[nodiscard]] std::unique_ptr<WallClock> CreateBestMatchingClock(u64 emulated_cpu_frequency, - u64 emulated_clock_frequency); +std::unique_ptr<WallClock> CreateOptimalClock(); -[[nodiscard]] std::unique_ptr<WallClock> CreateStandardWallClock(u64 emulated_cpu_frequency, - u64 emulated_clock_frequency); +std::unique_ptr<WallClock> CreateStandardWallClock(); } // namespace Common diff --git a/src/common/x64/cpu_detect.cpp b/src/common/x64/cpu_detect.cpp index 72ed6e96c..c998b1197 100644 --- a/src/common/x64/cpu_detect.cpp +++ b/src/common/x64/cpu_detect.cpp @@ -14,6 +14,7 @@ #include "common/common_types.h" #include "common/logging/log.h" #include "common/x64/cpu_detect.h" +#include "common/x64/rdtsc.h" #ifdef _WIN32 #include <windows.h> @@ -187,6 +188,8 @@ static CPUCaps Detect() { caps.tsc_frequency = static_cast<u64>(caps.crystal_frequency) * caps.tsc_crystal_ratio_numerator / caps.tsc_crystal_ratio_denominator; + } else { + caps.tsc_frequency = X64::EstimateRDTSCFrequency(); } } diff --git a/src/common/x64/cpu_wait.cpp b/src/common/x64/cpu_wait.cpp index cfeef6a3d..c53dd4945 100644 --- a/src/common/x64/cpu_wait.cpp +++ b/src/common/x64/cpu_wait.cpp @@ -9,19 +9,11 @@ #include "common/x64/cpu_detect.h" #include "common/x64/cpu_wait.h" +#include "common/x64/rdtsc.h" namespace Common::X64 { #ifdef _MSC_VER -__forceinline static u64 FencedRDTSC() { - _mm_lfence(); - _ReadWriteBarrier(); - const u64 result = __rdtsc(); - _mm_lfence(); - _ReadWriteBarrier(); - return result; -} - __forceinline static void TPAUSE() { // 100,000 cycles is a reasonable amount of time to wait to save on CPU resources. // For reference: @@ -32,16 +24,6 @@ __forceinline static void TPAUSE() { _tpause(0, FencedRDTSC() + PauseCycles); } #else -static u64 FencedRDTSC() { - u64 eax; - u64 edx; - asm volatile("lfence\n\t" - "rdtsc\n\t" - "lfence\n\t" - : "=a"(eax), "=d"(edx)); - return (edx << 32) | eax; -} - static void TPAUSE() { // 100,000 cycles is a reasonable amount of time to wait to save on CPU resources. // For reference: diff --git a/src/common/x64/native_clock.cpp b/src/common/x64/native_clock.cpp index 277b00662..7d2a26bd9 100644 --- a/src/common/x64/native_clock.cpp +++ b/src/common/x64/native_clock.cpp @@ -1,164 +1,50 @@ // SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project // SPDX-License-Identifier: GPL-2.0-or-later -#include <array> -#include <chrono> -#include <thread> - -#include "common/atomic_ops.h" -#include "common/steady_clock.h" #include "common/uint128.h" #include "common/x64/native_clock.h" +#include "common/x64/rdtsc.h" -#ifdef _MSC_VER -#include <intrin.h> -#endif - -namespace Common { +namespace Common::X64 { -#ifdef _MSC_VER -__forceinline static u64 FencedRDTSC() { - _mm_lfence(); - _ReadWriteBarrier(); - const u64 result = __rdtsc(); - _mm_lfence(); - _ReadWriteBarrier(); - return result; -} -#else -static u64 FencedRDTSC() { - u64 eax; - u64 edx; - asm volatile("lfence\n\t" - "rdtsc\n\t" - "lfence\n\t" - : "=a"(eax), "=d"(edx)); - return (edx << 32) | eax; -} -#endif +NativeClock::NativeClock(u64 rdtsc_frequency_) + : start_ticks{FencedRDTSC()}, rdtsc_frequency{rdtsc_frequency_}, + ns_rdtsc_factor{GetFixedPoint64Factor(NsRatio::den, rdtsc_frequency)}, + us_rdtsc_factor{GetFixedPoint64Factor(UsRatio::den, rdtsc_frequency)}, + ms_rdtsc_factor{GetFixedPoint64Factor(MsRatio::den, rdtsc_frequency)}, + cntpct_rdtsc_factor{GetFixedPoint64Factor(CNTFRQ, rdtsc_frequency)}, + gputick_rdtsc_factor{GetFixedPoint64Factor(GPUTickFreq, rdtsc_frequency)} {} -template <u64 Nearest> -static u64 RoundToNearest(u64 value) { - const auto mod = value % Nearest; - return mod >= (Nearest / 2) ? (value - mod + Nearest) : (value - mod); +std::chrono::nanoseconds NativeClock::GetTimeNS() const { + return std::chrono::nanoseconds{MultiplyHigh(GetHostTicksElapsed(), ns_rdtsc_factor)}; } -u64 EstimateRDTSCFrequency() { - // Discard the first result measuring the rdtsc. - FencedRDTSC(); - std::this_thread::sleep_for(std::chrono::milliseconds{1}); - FencedRDTSC(); - - // Get the current time. - const auto start_time = Common::RealTimeClock::Now(); - const u64 tsc_start = FencedRDTSC(); - // Wait for 250 milliseconds. - std::this_thread::sleep_for(std::chrono::milliseconds{250}); - const auto end_time = Common::RealTimeClock::Now(); - const u64 tsc_end = FencedRDTSC(); - // Calculate differences. - const u64 timer_diff = static_cast<u64>( - std::chrono::duration_cast<std::chrono::nanoseconds>(end_time - start_time).count()); - const u64 tsc_diff = tsc_end - tsc_start; - const u64 tsc_freq = MultiplyAndDivide64(tsc_diff, 1000000000ULL, timer_diff); - return RoundToNearest<1000>(tsc_freq); +std::chrono::microseconds NativeClock::GetTimeUS() const { + return std::chrono::microseconds{MultiplyHigh(GetHostTicksElapsed(), us_rdtsc_factor)}; } -namespace X64 { -NativeClock::NativeClock(u64 emulated_cpu_frequency_, u64 emulated_clock_frequency_, - u64 rtsc_frequency_) - : WallClock(emulated_cpu_frequency_, emulated_clock_frequency_, true), rtsc_frequency{ - rtsc_frequency_} { - // Thread to re-adjust the RDTSC frequency after 10 seconds has elapsed. - time_sync_thread = std::jthread{[this](std::stop_token token) { - // Get the current time. - const auto start_time = Common::RealTimeClock::Now(); - const u64 tsc_start = FencedRDTSC(); - // Wait for 10 seconds. - if (!Common::StoppableTimedWait(token, std::chrono::seconds{10})) { - return; - } - const auto end_time = Common::RealTimeClock::Now(); - const u64 tsc_end = FencedRDTSC(); - // Calculate differences. - const u64 timer_diff = static_cast<u64>( - std::chrono::duration_cast<std::chrono::nanoseconds>(end_time - start_time).count()); - const u64 tsc_diff = tsc_end - tsc_start; - const u64 tsc_freq = MultiplyAndDivide64(tsc_diff, 1000000000ULL, timer_diff); - rtsc_frequency = tsc_freq; - CalculateAndSetFactors(); - }}; - - time_point.inner.last_measure = FencedRDTSC(); - time_point.inner.accumulated_ticks = 0U; - CalculateAndSetFactors(); +std::chrono::milliseconds NativeClock::GetTimeMS() const { + return std::chrono::milliseconds{MultiplyHigh(GetHostTicksElapsed(), ms_rdtsc_factor)}; } -u64 NativeClock::GetRTSC() { - TimePoint new_time_point{}; - TimePoint current_time_point{}; - - current_time_point.pack = Common::AtomicLoad128(time_point.pack.data()); - do { - const u64 current_measure = FencedRDTSC(); - u64 diff = current_measure - current_time_point.inner.last_measure; - diff = diff & ~static_cast<u64>(static_cast<s64>(diff) >> 63); // max(diff, 0) - new_time_point.inner.last_measure = current_measure > current_time_point.inner.last_measure - ? current_measure - : current_time_point.inner.last_measure; - new_time_point.inner.accumulated_ticks = current_time_point.inner.accumulated_ticks + diff; - } while (!Common::AtomicCompareAndSwap(time_point.pack.data(), new_time_point.pack, - current_time_point.pack, current_time_point.pack)); - return new_time_point.inner.accumulated_ticks; +u64 NativeClock::GetCNTPCT() const { + return MultiplyHigh(GetHostTicksElapsed(), cntpct_rdtsc_factor); } -void NativeClock::Pause(bool is_paused) { - if (!is_paused) { - TimePoint current_time_point{}; - TimePoint new_time_point{}; - - current_time_point.pack = Common::AtomicLoad128(time_point.pack.data()); - do { - new_time_point.pack = current_time_point.pack; - new_time_point.inner.last_measure = FencedRDTSC(); - } while (!Common::AtomicCompareAndSwap(time_point.pack.data(), new_time_point.pack, - current_time_point.pack, current_time_point.pack)); - } +u64 NativeClock::GetGPUTick() const { + return MultiplyHigh(GetHostTicksElapsed(), gputick_rdtsc_factor); } -std::chrono::nanoseconds NativeClock::GetTimeNS() { - const u64 rtsc_value = GetRTSC(); - return std::chrono::nanoseconds{MultiplyHigh(rtsc_value, ns_rtsc_factor)}; +u64 NativeClock::GetHostTicksNow() const { + return FencedRDTSC(); } -std::chrono::microseconds NativeClock::GetTimeUS() { - const u64 rtsc_value = GetRTSC(); - return std::chrono::microseconds{MultiplyHigh(rtsc_value, us_rtsc_factor)}; +u64 NativeClock::GetHostTicksElapsed() const { + return FencedRDTSC() - start_ticks; } -std::chrono::milliseconds NativeClock::GetTimeMS() { - const u64 rtsc_value = GetRTSC(); - return std::chrono::milliseconds{MultiplyHigh(rtsc_value, ms_rtsc_factor)}; +bool NativeClock::IsNative() const { + return true; } -u64 NativeClock::GetClockCycles() { - const u64 rtsc_value = GetRTSC(); - return MultiplyHigh(rtsc_value, clock_rtsc_factor); -} - -u64 NativeClock::GetCPUCycles() { - const u64 rtsc_value = GetRTSC(); - return MultiplyHigh(rtsc_value, cpu_rtsc_factor); -} - -void NativeClock::CalculateAndSetFactors() { - ns_rtsc_factor = GetFixedPoint64Factor(NS_RATIO, rtsc_frequency); - us_rtsc_factor = GetFixedPoint64Factor(US_RATIO, rtsc_frequency); - ms_rtsc_factor = GetFixedPoint64Factor(MS_RATIO, rtsc_frequency); - clock_rtsc_factor = GetFixedPoint64Factor(emulated_clock_frequency, rtsc_frequency); - cpu_rtsc_factor = GetFixedPoint64Factor(emulated_cpu_frequency, rtsc_frequency); -} - -} // namespace X64 - -} // namespace Common +} // namespace Common::X64 diff --git a/src/common/x64/native_clock.h b/src/common/x64/native_clock.h index 03ca291d8..334415eff 100644 --- a/src/common/x64/native_clock.h +++ b/src/common/x64/native_clock.h @@ -3,58 +3,39 @@ #pragma once -#include "common/polyfill_thread.h" #include "common/wall_clock.h" -namespace Common { +namespace Common::X64 { -namespace X64 { class NativeClock final : public WallClock { public: - explicit NativeClock(u64 emulated_cpu_frequency_, u64 emulated_clock_frequency_, - u64 rtsc_frequency_); + explicit NativeClock(u64 rdtsc_frequency_); - std::chrono::nanoseconds GetTimeNS() override; + std::chrono::nanoseconds GetTimeNS() const override; - std::chrono::microseconds GetTimeUS() override; + std::chrono::microseconds GetTimeUS() const override; - std::chrono::milliseconds GetTimeMS() override; + std::chrono::milliseconds GetTimeMS() const override; - u64 GetClockCycles() override; + u64 GetCNTPCT() const override; - u64 GetCPUCycles() override; + u64 GetGPUTick() const override; - void Pause(bool is_paused) override; + u64 GetHostTicksNow() const override; -private: - u64 GetRTSC(); - - void CalculateAndSetFactors(); - - union alignas(16) TimePoint { - TimePoint() : pack{} {} - u128 pack{}; - struct Inner { - u64 last_measure{}; - u64 accumulated_ticks{}; - } inner; - }; - - TimePoint time_point; + u64 GetHostTicksElapsed() const override; - // factors - u64 clock_rtsc_factor{}; - u64 cpu_rtsc_factor{}; - u64 ns_rtsc_factor{}; - u64 us_rtsc_factor{}; - u64 ms_rtsc_factor{}; + bool IsNative() const override; - u64 rtsc_frequency; - - std::jthread time_sync_thread; +private: + u64 start_ticks; + u64 rdtsc_frequency; + + u64 ns_rdtsc_factor; + u64 us_rdtsc_factor; + u64 ms_rdtsc_factor; + u64 cntpct_rdtsc_factor; + u64 gputick_rdtsc_factor; }; -} // namespace X64 - -u64 EstimateRDTSCFrequency(); -} // namespace Common +} // namespace Common::X64 diff --git a/src/common/x64/rdtsc.cpp b/src/common/x64/rdtsc.cpp new file mode 100644 index 000000000..9273274a3 --- /dev/null +++ b/src/common/x64/rdtsc.cpp @@ -0,0 +1,39 @@ +// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#include <thread> + +#include "common/steady_clock.h" +#include "common/uint128.h" +#include "common/x64/rdtsc.h" + +namespace Common::X64 { + +template <u64 Nearest> +static u64 RoundToNearest(u64 value) { + const auto mod = value % Nearest; + return mod >= (Nearest / 2) ? (value - mod + Nearest) : (value - mod); +} + +u64 EstimateRDTSCFrequency() { + // Discard the first result measuring the rdtsc. + FencedRDTSC(); + std::this_thread::sleep_for(std::chrono::milliseconds{1}); + FencedRDTSC(); + + // Get the current time. + const auto start_time = RealTimeClock::Now(); + const u64 tsc_start = FencedRDTSC(); + // Wait for 100 milliseconds. + std::this_thread::sleep_for(std::chrono::milliseconds{100}); + const auto end_time = RealTimeClock::Now(); + const u64 tsc_end = FencedRDTSC(); + // Calculate differences. + const u64 timer_diff = static_cast<u64>( + std::chrono::duration_cast<std::chrono::nanoseconds>(end_time - start_time).count()); + const u64 tsc_diff = tsc_end - tsc_start; + const u64 tsc_freq = MultiplyAndDivide64(tsc_diff, 1000000000ULL, timer_diff); + return RoundToNearest<100'000>(tsc_freq); +} + +} // namespace Common::X64 diff --git a/src/common/x64/rdtsc.h b/src/common/x64/rdtsc.h new file mode 100644 index 000000000..0ec4f52f9 --- /dev/null +++ b/src/common/x64/rdtsc.h @@ -0,0 +1,37 @@ +// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#ifdef _MSC_VER +#include <intrin.h> +#endif + +#include "common/common_types.h" + +namespace Common::X64 { + +#ifdef _MSC_VER +__forceinline static u64 FencedRDTSC() { + _mm_lfence(); + _ReadWriteBarrier(); + const u64 result = __rdtsc(); + _mm_lfence(); + _ReadWriteBarrier(); + return result; +} +#else +static inline u64 FencedRDTSC() { + u64 eax; + u64 edx; + asm volatile("lfence\n\t" + "rdtsc\n\t" + "lfence\n\t" + : "=a"(eax), "=d"(edx)); + return (edx << 32) | eax; +} +#endif + +u64 EstimateRDTSCFrequency(); + +} // namespace Common::X64 diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt index 227c431bc..3655b8478 100644 --- a/src/core/CMakeLists.txt +++ b/src/core/CMakeLists.txt @@ -14,7 +14,6 @@ add_library(core STATIC core.h core_timing.cpp core_timing.h - core_timing_util.h cpu_manager.cpp cpu_manager.h crypto/aes_util.cpp diff --git a/src/core/core_timing.cpp b/src/core/core_timing.cpp index 4f2692b05..4f0a3f8ea 100644 --- a/src/core/core_timing.cpp +++ b/src/core/core_timing.cpp @@ -16,12 +16,11 @@ #include "common/microprofile.h" #include "core/core_timing.h" -#include "core/core_timing_util.h" #include "core/hardware_properties.h" namespace Core::Timing { -constexpr s64 MAX_SLICE_LENGTH = 4000; +constexpr s64 MAX_SLICE_LENGTH = 10000; std::shared_ptr<EventType> CreateEvent(std::string name, TimedCallback&& callback) { return std::make_shared<EventType>(std::move(callback), std::move(name)); @@ -45,9 +44,7 @@ struct CoreTiming::Event { } }; -CoreTiming::CoreTiming() - : cpu_clock{Common::CreateBestMatchingClock(Hardware::BASE_CLOCK_RATE, Hardware::CNTFREQ)}, - event_clock{Common::CreateStandardWallClock(Hardware::BASE_CLOCK_RATE, Hardware::CNTFREQ)} {} +CoreTiming::CoreTiming() : clock{Common::CreateOptimalClock()} {} CoreTiming::~CoreTiming() { Reset(); @@ -68,7 +65,7 @@ void CoreTiming::Initialize(std::function<void()>&& on_thread_init_) { on_thread_init = std::move(on_thread_init_); event_fifo_id = 0; shutting_down = false; - ticks = 0; + cpu_ticks = 0; const auto empty_timed_callback = [](std::uintptr_t, u64, std::chrono::nanoseconds) -> std::optional<std::chrono::nanoseconds> { return std::nullopt; }; ev_lost = CreateEvent("_lost_event", empty_timed_callback); @@ -173,38 +170,30 @@ void CoreTiming::UnscheduleEvent(const std::shared_ptr<EventType>& event_type, } void CoreTiming::AddTicks(u64 ticks_to_add) { - ticks += ticks_to_add; - downcount -= static_cast<s64>(ticks); + cpu_ticks += ticks_to_add; + downcount -= static_cast<s64>(cpu_ticks); } void CoreTiming::Idle() { - if (!event_queue.empty()) { - const u64 next_event_time = event_queue.front().time; - const u64 next_ticks = nsToCycles(std::chrono::nanoseconds(next_event_time)) + 10U; - if (next_ticks > ticks) { - ticks = next_ticks; - } - return; - } - ticks += 1000U; + cpu_ticks += 1000U; } void CoreTiming::ResetTicks() { downcount = MAX_SLICE_LENGTH; } -u64 CoreTiming::GetCPUTicks() const { +u64 CoreTiming::GetClockTicks() const { if (is_multicore) [[likely]] { - return cpu_clock->GetCPUCycles(); + return clock->GetCNTPCT(); } - return ticks; + return Common::WallClock::CPUTickToCNTPCT(cpu_ticks); } -u64 CoreTiming::GetClockTicks() const { +u64 CoreTiming::GetGPUTicks() const { if (is_multicore) [[likely]] { - return cpu_clock->GetClockCycles(); + return clock->GetGPUTick(); } - return CpuCyclesToClockCycles(ticks); + return Common::WallClock::CPUTickToGPUTick(cpu_ticks); } std::optional<s64> CoreTiming::Advance() { @@ -297,9 +286,7 @@ void CoreTiming::ThreadLoop() { } paused_set = true; - event_clock->Pause(true); pause_event.Wait(); - event_clock->Pause(false); } } @@ -315,25 +302,18 @@ void CoreTiming::Reset() { has_started = false; } -std::chrono::nanoseconds CoreTiming::GetCPUTimeNs() const { - if (is_multicore) [[likely]] { - return cpu_clock->GetTimeNS(); - } - return CyclesToNs(ticks); -} - std::chrono::nanoseconds CoreTiming::GetGlobalTimeNs() const { if (is_multicore) [[likely]] { - return event_clock->GetTimeNS(); + return clock->GetTimeNS(); } - return CyclesToNs(ticks); + return std::chrono::nanoseconds{Common::WallClock::CPUTickToNS(cpu_ticks)}; } std::chrono::microseconds CoreTiming::GetGlobalTimeUs() const { if (is_multicore) [[likely]] { - return event_clock->GetTimeUS(); + return clock->GetTimeUS(); } - return CyclesToUs(ticks); + return std::chrono::microseconds{Common::WallClock::CPUTickToUS(cpu_ticks)}; } } // namespace Core::Timing diff --git a/src/core/core_timing.h b/src/core/core_timing.h index e7c4a949f..10db1de55 100644 --- a/src/core/core_timing.h +++ b/src/core/core_timing.h @@ -116,14 +116,11 @@ public: return downcount; } - /// Returns current time in emulated CPU cycles - u64 GetCPUTicks() const; - - /// Returns current time in emulated in Clock cycles + /// Returns the current CNTPCT tick value. u64 GetClockTicks() const; - /// Returns current time in nanoseconds. - std::chrono::nanoseconds GetCPUTimeNs() const; + /// Returns the current GPU tick value. + u64 GetGPUTicks() const; /// Returns current time in microseconds. std::chrono::microseconds GetGlobalTimeUs() const; @@ -142,8 +139,7 @@ private: void Reset(); - std::unique_ptr<Common::WallClock> cpu_clock; - std::unique_ptr<Common::WallClock> event_clock; + std::unique_ptr<Common::WallClock> clock; s64 global_timer = 0; @@ -171,7 +167,7 @@ private: s64 pause_end_time{}; /// Cycle timing - u64 ticks{}; + u64 cpu_ticks{}; s64 downcount{}; }; diff --git a/src/core/core_timing_util.h b/src/core/core_timing_util.h deleted file mode 100644 index fe5aaefc7..000000000 --- a/src/core/core_timing_util.h +++ /dev/null @@ -1,58 +0,0 @@ -// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project -// SPDX-License-Identifier: GPL-2.0-or-later - -#pragma once - -#include <chrono> - -#include "common/common_types.h" -#include "core/hardware_properties.h" - -namespace Core::Timing { - -namespace detail { -constexpr u64 CNTFREQ_ADJUSTED = Hardware::CNTFREQ / 1000; -constexpr u64 BASE_CLOCK_RATE_ADJUSTED = Hardware::BASE_CLOCK_RATE / 1000; -} // namespace detail - -[[nodiscard]] constexpr s64 msToCycles(std::chrono::milliseconds ms) { - return ms.count() * detail::BASE_CLOCK_RATE_ADJUSTED; -} - -[[nodiscard]] constexpr s64 usToCycles(std::chrono::microseconds us) { - return us.count() * detail::BASE_CLOCK_RATE_ADJUSTED / 1000; -} - -[[nodiscard]] constexpr s64 nsToCycles(std::chrono::nanoseconds ns) { - return ns.count() * detail::BASE_CLOCK_RATE_ADJUSTED / 1000000; -} - -[[nodiscard]] constexpr u64 msToClockCycles(std::chrono::milliseconds ms) { - return static_cast<u64>(ms.count()) * detail::CNTFREQ_ADJUSTED; -} - -[[nodiscard]] constexpr u64 usToClockCycles(std::chrono::microseconds us) { - return us.count() * detail::CNTFREQ_ADJUSTED / 1000; -} - -[[nodiscard]] constexpr u64 nsToClockCycles(std::chrono::nanoseconds ns) { - return ns.count() * detail::CNTFREQ_ADJUSTED / 1000000; -} - -[[nodiscard]] constexpr u64 CpuCyclesToClockCycles(u64 ticks) { - return ticks * detail::CNTFREQ_ADJUSTED / detail::BASE_CLOCK_RATE_ADJUSTED; -} - -[[nodiscard]] constexpr std::chrono::milliseconds CyclesToMs(s64 cycles) { - return std::chrono::milliseconds(cycles / detail::BASE_CLOCK_RATE_ADJUSTED); -} - -[[nodiscard]] constexpr std::chrono::nanoseconds CyclesToNs(s64 cycles) { - return std::chrono::nanoseconds(cycles * 1000000 / detail::BASE_CLOCK_RATE_ADJUSTED); -} - -[[nodiscard]] constexpr std::chrono::microseconds CyclesToUs(s64 cycles) { - return std::chrono::microseconds(cycles * 1000 / detail::BASE_CLOCK_RATE_ADJUSTED); -} - -} // namespace Core::Timing diff --git a/src/core/hle/kernel/k_scheduler.cpp b/src/core/hle/kernel/k_scheduler.cpp index faa12b4f0..75ce5a23c 100644 --- a/src/core/hle/kernel/k_scheduler.cpp +++ b/src/core/hle/kernel/k_scheduler.cpp @@ -184,7 +184,8 @@ u64 KScheduler::UpdateHighestPriorityThread(KThread* highest_thread) { prev_highest_thread != highest_thread) [[likely]] { if (prev_highest_thread != nullptr) [[likely]] { IncrementScheduledCount(prev_highest_thread); - prev_highest_thread->SetLastScheduledTick(m_kernel.System().CoreTiming().GetCPUTicks()); + prev_highest_thread->SetLastScheduledTick( + m_kernel.System().CoreTiming().GetClockTicks()); } if (m_state.should_count_idle) { if (highest_thread != nullptr) [[likely]] { @@ -351,7 +352,7 @@ void KScheduler::SwitchThread(KThread* next_thread) { // Update the CPU time tracking variables. const s64 prev_tick = m_last_context_switch_time; - const s64 cur_tick = m_kernel.System().CoreTiming().GetCPUTicks(); + const s64 cur_tick = m_kernel.System().CoreTiming().GetClockTicks(); const s64 tick_diff = cur_tick - prev_tick; cur_thread->AddCpuTime(m_core_id, tick_diff); if (cur_process != nullptr) { diff --git a/src/core/hle/kernel/svc/svc_info.cpp b/src/core/hle/kernel/svc/svc_info.cpp index 2b2c878b5..445cdd87b 100644 --- a/src/core/hle/kernel/svc/svc_info.cpp +++ b/src/core/hle/kernel/svc/svc_info.cpp @@ -199,9 +199,9 @@ Result GetInfo(Core::System& system, u64* result, InfoType info_id_type, Handle if (same_thread && info_sub_id == 0xFFFFFFFFFFFFFFFF) { const u64 thread_ticks = current_thread->GetCpuTime(); - out_ticks = thread_ticks + (core_timing.GetCPUTicks() - prev_ctx_ticks); + out_ticks = thread_ticks + (core_timing.GetClockTicks() - prev_ctx_ticks); } else if (same_thread && info_sub_id == system.Kernel().CurrentPhysicalCoreIndex()) { - out_ticks = core_timing.GetCPUTicks() - prev_ctx_ticks; + out_ticks = core_timing.GetClockTicks() - prev_ctx_ticks; } *result = out_ticks; diff --git a/src/core/hle/kernel/svc/svc_tick.cpp b/src/core/hle/kernel/svc/svc_tick.cpp index 561336482..7dd7c6e51 100644 --- a/src/core/hle/kernel/svc/svc_tick.cpp +++ b/src/core/hle/kernel/svc/svc_tick.cpp @@ -12,16 +12,8 @@ namespace Kernel::Svc { int64_t GetSystemTick(Core::System& system) { LOG_TRACE(Kernel_SVC, "called"); - auto& core_timing = system.CoreTiming(); - // Returns the value of cntpct_el0 (https://switchbrew.org/wiki/SVC#svcGetSystemTick) - const u64 result{core_timing.GetClockTicks()}; - - if (!system.Kernel().IsMulticore()) { - core_timing.AddTicks(400U); - } - - return static_cast<int64_t>(result); + return static_cast<int64_t>(system.CoreTiming().GetClockTicks()); } int64_t GetSystemTick64(Core::System& system) { diff --git a/src/core/hle/service/hid/hidbus.cpp b/src/core/hle/service/hid/hidbus.cpp index 5604a6fda..80aac221b 100644 --- a/src/core/hle/service/hid/hidbus.cpp +++ b/src/core/hle/service/hid/hidbus.cpp @@ -5,7 +5,6 @@ #include "common/settings.h" #include "core/core.h" #include "core/core_timing.h" -#include "core/core_timing_util.h" #include "core/hid/hid_types.h" #include "core/hle/kernel/k_event.h" #include "core/hle/kernel/k_readable_event.h" diff --git a/src/core/hle/service/nvdrv/devices/nvdisp_disp0.cpp b/src/core/hle/service/nvdrv/devices/nvdisp_disp0.cpp index 5a5b2e305..0fe242e9d 100644 --- a/src/core/hle/service/nvdrv/devices/nvdisp_disp0.cpp +++ b/src/core/hle/service/nvdrv/devices/nvdisp_disp0.cpp @@ -51,8 +51,8 @@ void nvdisp_disp0::flip(u32 buffer_handle, u32 offset, android::PixelFormat form stride, format, transform, crop_rect}; system.GPU().RequestSwapBuffers(&framebuffer, fences, num_fences); - system.GetPerfStats().EndSystemFrame(); system.SpeedLimiter().DoSpeedLimiting(system.CoreTiming().GetGlobalTimeUs()); + system.GetPerfStats().EndSystemFrame(); system.GetPerfStats().BeginSystemFrame(); } diff --git a/src/core/hle/service/nvnflinger/nvnflinger.cpp b/src/core/hle/service/nvnflinger/nvnflinger.cpp index da2d5890f..b41c6240c 100644 --- a/src/core/hle/service/nvnflinger/nvnflinger.cpp +++ b/src/core/hle/service/nvnflinger/nvnflinger.cpp @@ -70,7 +70,8 @@ Nvnflinger::Nvnflinger(Core::System& system_, HosBinderDriverServer& hos_binder_ [this](std::uintptr_t, s64 time, std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> { vsync_signal.store(true); - vsync_signal.notify_all(); + { const auto lock_guard = Lock(); } + vsync_signal.notify_one(); return std::chrono::nanoseconds(GetNextTicks()); }); diff --git a/src/core/hle/service/time/clock_types.h b/src/core/hle/service/time/clock_types.h index e6293ffb9..9fc01ea90 100644 --- a/src/core/hle/service/time/clock_types.h +++ b/src/core/hle/service/time/clock_types.h @@ -3,6 +3,8 @@ #pragma once +#include <ratio> + #include "common/common_funcs.h" #include "common/common_types.h" #include "common/uuid.h" @@ -74,18 +76,19 @@ static_assert(std::is_trivially_copyable_v<ContinuousAdjustmentTimePoint>, /// https://switchbrew.org/wiki/Glue_services#TimeSpanType struct TimeSpanType { s64 nanoseconds{}; - static constexpr s64 ns_per_second{1000000000ULL}; s64 ToSeconds() const { - return nanoseconds / ns_per_second; + return nanoseconds / std::nano::den; } static TimeSpanType FromSeconds(s64 seconds) { - return {seconds * ns_per_second}; + return {seconds * std::nano::den}; } - static TimeSpanType FromTicks(u64 ticks, u64 frequency) { - return FromSeconds(static_cast<s64>(ticks) / static_cast<s64>(frequency)); + template <u64 Frequency> + static TimeSpanType FromTicks(u64 ticks) { + using TicksToNSRatio = std::ratio<std::nano::den, Frequency>; + return {static_cast<s64>(ticks * TicksToNSRatio::num / TicksToNSRatio::den)}; } }; static_assert(sizeof(TimeSpanType) == 8, "TimeSpanType is incorrect size"); diff --git a/src/core/hle/service/time/standard_steady_clock_core.cpp b/src/core/hle/service/time/standard_steady_clock_core.cpp index 3dbbb9850..5627b7003 100644 --- a/src/core/hle/service/time/standard_steady_clock_core.cpp +++ b/src/core/hle/service/time/standard_steady_clock_core.cpp @@ -10,7 +10,7 @@ namespace Service::Time::Clock { TimeSpanType StandardSteadyClockCore::GetCurrentRawTimePoint(Core::System& system) { const TimeSpanType ticks_time_span{ - TimeSpanType::FromTicks(system.CoreTiming().GetClockTicks(), Core::Hardware::CNTFREQ)}; + TimeSpanType::FromTicks<Core::Hardware::CNTFREQ>(system.CoreTiming().GetClockTicks())}; TimeSpanType raw_time_point{setup_value.nanoseconds + ticks_time_span.nanoseconds}; if (raw_time_point.nanoseconds < cached_raw_time_point.nanoseconds) { diff --git a/src/core/hle/service/time/tick_based_steady_clock_core.cpp b/src/core/hle/service/time/tick_based_steady_clock_core.cpp index 27600413e..0d9fb3143 100644 --- a/src/core/hle/service/time/tick_based_steady_clock_core.cpp +++ b/src/core/hle/service/time/tick_based_steady_clock_core.cpp @@ -10,7 +10,7 @@ namespace Service::Time::Clock { SteadyClockTimePoint TickBasedSteadyClockCore::GetTimePoint(Core::System& system) { const TimeSpanType ticks_time_span{ - TimeSpanType::FromTicks(system.CoreTiming().GetClockTicks(), Core::Hardware::CNTFREQ)}; + TimeSpanType::FromTicks<Core::Hardware::CNTFREQ>(system.CoreTiming().GetClockTicks())}; return {ticks_time_span.ToSeconds(), GetClockSourceId()}; } diff --git a/src/core/hle/service/time/time.cpp b/src/core/hle/service/time/time.cpp index 868be60c5..7197ca30f 100644 --- a/src/core/hle/service/time/time.cpp +++ b/src/core/hle/service/time/time.cpp @@ -240,8 +240,8 @@ void Module::Interface::CalculateMonotonicSystemClockBaseTimePoint(HLERequestCon const auto current_time_point{steady_clock_core.GetCurrentTimePoint(system)}; if (current_time_point.clock_source_id == context.steady_time_point.clock_source_id) { - const auto ticks{Clock::TimeSpanType::FromTicks(system.CoreTiming().GetClockTicks(), - Core::Hardware::CNTFREQ)}; + const auto ticks{Clock::TimeSpanType::FromTicks<Core::Hardware::CNTFREQ>( + system.CoreTiming().GetClockTicks())}; const s64 base_time_point{context.offset + current_time_point.time_point - ticks.ToSeconds()}; IPC::ResponseBuilder rb{ctx, (sizeof(s64) / 4) + 2}; diff --git a/src/core/hle/service/time/time_sharedmemory.cpp b/src/core/hle/service/time/time_sharedmemory.cpp index ce1c85bcc..a00676669 100644 --- a/src/core/hle/service/time/time_sharedmemory.cpp +++ b/src/core/hle/service/time/time_sharedmemory.cpp @@ -21,8 +21,9 @@ SharedMemory::~SharedMemory() = default; void SharedMemory::SetupStandardSteadyClock(const Common::UUID& clock_source_id, Clock::TimeSpanType current_time_point) { - const Clock::TimeSpanType ticks_time_span{Clock::TimeSpanType::FromTicks( - system.CoreTiming().GetClockTicks(), Core::Hardware::CNTFREQ)}; + const Clock::TimeSpanType ticks_time_span{ + Clock::TimeSpanType::FromTicks<Core::Hardware::CNTFREQ>( + system.CoreTiming().GetClockTicks())}; const Clock::SteadyClockContext context{ static_cast<u64>(current_time_point.nanoseconds - ticks_time_span.nanoseconds), clock_source_id}; diff --git a/src/video_core/gpu.cpp b/src/video_core/gpu.cpp index 456f733cf..db385076d 100644 --- a/src/video_core/gpu.cpp +++ b/src/video_core/gpu.cpp @@ -193,18 +193,13 @@ struct GPU::Impl { } [[nodiscard]] u64 GetTicks() const { - // This values were reversed engineered by fincs from NVN - // The gpu clock is reported in units of 385/625 nanoseconds - constexpr u64 gpu_ticks_num = 384; - constexpr u64 gpu_ticks_den = 625; + u64 gpu_tick = system.CoreTiming().GetGPUTicks(); - u64 nanoseconds = system.CoreTiming().GetCPUTimeNs().count(); if (Settings::values.use_fast_gpu_time.GetValue()) { - nanoseconds /= 256; + gpu_tick /= 256; } - const u64 nanoseconds_num = nanoseconds / gpu_ticks_den; - const u64 nanoseconds_rem = nanoseconds % gpu_ticks_den; - return nanoseconds_num * gpu_ticks_num + (nanoseconds_rem * gpu_ticks_num) / gpu_ticks_den; + + return gpu_tick; } [[nodiscard]] bool IsAsync() const { |