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Enable Time-based TSC for non-Ryzen CPUs

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This commit is contained in:
Elad 2025-01-31 13:47:17 +02:00
parent 57b6ced957
commit 394fc8eb79
2 changed files with 15 additions and 4 deletions
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4
rpcs3/Emu/Cell/lv2/sys_time.cpp
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@ -147,7 +147,7 @@ u64 convert_to_timebased_time(u64 time)
u64 get_timebased_time() u64 get_timebased_time()
{ {
if (0) if (u64 freq = utils::get_tsc_freq()) if (u64 freq = utils::get_tsc_freq())
{ {
const u64 tsc = utils::get_tsc(); const u64 tsc = utils::get_tsc();
@ -207,7 +207,7 @@ void initialize_timebased_time(u64 timebased_init, bool reset)
// Returns some relative time in microseconds, don't change this fact // Returns some relative time in microseconds, don't change this fact
u64 get_system_time() u64 get_system_time()
{ {
if (0) if (u64 freq = utils::get_tsc_freq()) if (u64 freq = utils::get_tsc_freq())
{ {
const u64 tsc = utils::get_tsc(); const u64 tsc = utils::get_tsc();

15
rpcs3/util/sysinfo.cpp
View file

@ -524,7 +524,7 @@ std::string utils::get_system_info()
} }
else else
{ {
fmt::append(result, " | TSC: Bad"); fmt::append(result, " | TSC: Disabled");
} }
if (has_avx()) if (has_avx())
@ -772,15 +772,26 @@ static const bool s_tsc_freq_evaluated = []() -> bool
#endif #endif
if (!utils::has_invariant_tsc()) if (!utils::has_invariant_tsc())
{
return 0; return 0;
}
if (utils::get_cpu_brand().find("Ryzen") != umax)
{
return 0;
}
#ifdef _WIN32 #ifdef _WIN32
LARGE_INTEGER freq; LARGE_INTEGER freq;
if (!QueryPerformanceFrequency(&freq)) if (!QueryPerformanceFrequency(&freq))
{
return 0; return 0;
}
if (freq.QuadPart <= 9'999'999) if (freq.QuadPart <= 9'999'999)
{
return 0; return 0;
}
const ullong timer_freq = freq.QuadPart; const ullong timer_freq = freq.QuadPart;
#else #else
@ -880,7 +891,7 @@ static const bool s_tsc_freq_evaluated = []() -> bool
return round_tsc(res, utils::mul_saturate<u64>(utils::add_saturate<u64>(rdtsc_diff[0], rdtsc_diff[1]), utils::aligned_div(timer_freq, timer_data[1] - timer_data[0]))); return round_tsc(res, utils::mul_saturate<u64>(utils::add_saturate<u64>(rdtsc_diff[0], rdtsc_diff[1]), utils::aligned_div(timer_freq, timer_data[1] - timer_data[0])));
}(); }();
atomic_storage<u64>::release(utils::s_tsc_freq, cal_tsc); atomic_storage<u64>::store(utils::s_tsc_freq, cal_tsc);
return true; return true;
}(); }();