From 8e56a84566036cfff0aa5c3d80ae1b051d2bd0bf Mon Sep 17 00:00:00 2001 From: Morph Date: Sun, 23 Apr 2023 00:01:08 -0400 Subject: core_timing: Use CNTPCT as the guest CPU tick Previously, we were mixing the raw CPU frequency and CNTFRQ. The raw CPU frequency (1020 MHz) should've never been used as CNTPCT (whose frequency is CNTFRQ) is the only counter available. --- src/core/core_timing.cpp | 35 ++++++++--------------------------- 1 file changed, 8 insertions(+), 27 deletions(-) (limited to 'src/core/core_timing.cpp') diff --git a/src/core/core_timing.cpp b/src/core/core_timing.cpp index 4f2692b05..9a1d5a69a 100644 --- a/src/core/core_timing.cpp +++ b/src/core/core_timing.cpp @@ -16,7 +16,6 @@ #include "common/microprofile.h" #include "core/core_timing.h" -#include "core/core_timing_util.h" #include "core/hardware_properties.h" namespace Core::Timing { @@ -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(); @@ -180,7 +177,7 @@ void CoreTiming::AddTicks(u64 ticks_to_add) { 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; + const u64 next_ticks = Common::WallClock::NSToCNTPCT(next_event_time) + 10U; if (next_ticks > ticks) { ticks = next_ticks; } @@ -193,18 +190,11 @@ void CoreTiming::ResetTicks() { downcount = MAX_SLICE_LENGTH; } -u64 CoreTiming::GetCPUTicks() const { - if (is_multicore) [[likely]] { - return cpu_clock->GetCPUCycles(); - } - return ticks; -} - u64 CoreTiming::GetClockTicks() const { if (is_multicore) [[likely]] { - return cpu_clock->GetClockCycles(); + return clock->GetCNTPCT(); } - return CpuCyclesToClockCycles(ticks); + return ticks; } std::optional CoreTiming::Advance() { @@ -297,9 +287,7 @@ void CoreTiming::ThreadLoop() { } paused_set = true; - event_clock->Pause(true); pause_event.Wait(); - event_clock->Pause(false); } } @@ -315,25 +303,18 @@ 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::CNTPCTToNS(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::CNTPCTToUS(ticks)}; } } // namespace Core::Timing -- cgit v1.2.3 From 907507886d755fa56099713c4b8f05bb640a8b7d Mon Sep 17 00:00:00 2001 From: Morph Date: Sun, 28 May 2023 17:45:47 -0400 Subject: (wall, native)_clock: Add GetGPUTick Allows us to directly calculate the GPU tick without double conversion to and from the host clock tick. --- src/core/core_timing.cpp | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'src/core/core_timing.cpp') diff --git a/src/core/core_timing.cpp b/src/core/core_timing.cpp index 9a1d5a69a..e57bca70a 100644 --- a/src/core/core_timing.cpp +++ b/src/core/core_timing.cpp @@ -197,6 +197,13 @@ u64 CoreTiming::GetClockTicks() const { return ticks; } +u64 CoreTiming::GetGPUTicks() const { + if (is_multicore) [[likely]] { + return clock->GetGPUTick(); + } + return Common::WallClock::CNTPCTToGPUTick(ticks); +} + std::optional CoreTiming::Advance() { std::scoped_lock lock{advance_lock, basic_lock}; global_timer = GetGlobalTimeNs().count(); -- cgit v1.2.3 From 2e1e7254436b032f133372c76d9484aa756d56df Mon Sep 17 00:00:00 2001 From: Morph Date: Wed, 7 Jun 2023 21:38:28 -0400 Subject: core_timing: Fix SingleCore cycle timer --- src/core/core_timing.cpp | 26 +++++++++----------------- 1 file changed, 9 insertions(+), 17 deletions(-) (limited to 'src/core/core_timing.cpp') diff --git a/src/core/core_timing.cpp b/src/core/core_timing.cpp index e57bca70a..4f0a3f8ea 100644 --- a/src/core/core_timing.cpp +++ b/src/core/core_timing.cpp @@ -20,7 +20,7 @@ namespace Core::Timing { -constexpr s64 MAX_SLICE_LENGTH = 4000; +constexpr s64 MAX_SLICE_LENGTH = 10000; std::shared_ptr CreateEvent(std::string name, TimedCallback&& callback) { return std::make_shared(std::move(callback), std::move(name)); @@ -65,7 +65,7 @@ void CoreTiming::Initialize(std::function&& 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 { return std::nullopt; }; ev_lost = CreateEvent("_lost_event", empty_timed_callback); @@ -170,20 +170,12 @@ void CoreTiming::UnscheduleEvent(const std::shared_ptr& event_type, } void CoreTiming::AddTicks(u64 ticks_to_add) { - ticks += ticks_to_add; - downcount -= static_cast(ticks); + cpu_ticks += ticks_to_add; + downcount -= static_cast(cpu_ticks); } void CoreTiming::Idle() { - if (!event_queue.empty()) { - const u64 next_event_time = event_queue.front().time; - const u64 next_ticks = Common::WallClock::NSToCNTPCT(next_event_time) + 10U; - if (next_ticks > ticks) { - ticks = next_ticks; - } - return; - } - ticks += 1000U; + cpu_ticks += 1000U; } void CoreTiming::ResetTicks() { @@ -194,14 +186,14 @@ u64 CoreTiming::GetClockTicks() const { if (is_multicore) [[likely]] { return clock->GetCNTPCT(); } - return ticks; + return Common::WallClock::CPUTickToCNTPCT(cpu_ticks); } u64 CoreTiming::GetGPUTicks() const { if (is_multicore) [[likely]] { return clock->GetGPUTick(); } - return Common::WallClock::CNTPCTToGPUTick(ticks); + return Common::WallClock::CPUTickToGPUTick(cpu_ticks); } std::optional CoreTiming::Advance() { @@ -314,14 +306,14 @@ std::chrono::nanoseconds CoreTiming::GetGlobalTimeNs() const { if (is_multicore) [[likely]] { return clock->GetTimeNS(); } - return std::chrono::nanoseconds{Common::WallClock::CNTPCTToNS(ticks)}; + return std::chrono::nanoseconds{Common::WallClock::CPUTickToNS(cpu_ticks)}; } std::chrono::microseconds CoreTiming::GetGlobalTimeUs() const { if (is_multicore) [[likely]] { return clock->GetTimeUS(); } - return std::chrono::microseconds{Common::WallClock::CNTPCTToUS(ticks)}; + return std::chrono::microseconds{Common::WallClock::CPUTickToUS(cpu_ticks)}; } } // namespace Core::Timing -- cgit v1.2.3