archive/rpcs3
1
0
Fork 0
mirror of https://github.com/RPCS3/rpcs3.git synced 2025-07-08 16:01:42 +12:00
Code Issues Projects Releases Packages Wiki Activity Actions

SPU: Implement execution wake-up delay

Browse source
This commit is contained in:
Eladash 2020-06-23 16:41:16 +03:00 • committed by Ivan
parent 149c593d89
commit cf0fcf5a2a
7 changed files with 83 additions and 64 deletions
Download patch file Download diff file Expand all files Collapse all files

53
rpcs3/Emu/RSX/RSXThread.cpp
View file

@ -2780,59 +2780,10 @@ namespace rsx
return result;
}
void thread::fifo_wake_delay(u64 div)
void thread::fifo_wake_delay(u32 div)
{
// TODO: Nanoseconds accuracy
u64 remaining = g_cfg.video.driver_wakeup_delay;
if (!remaining)
{
return;
}
// Some cases do not need full delay
remaining = utils::aligned_div(remaining, div);
const u64 until = rsx::uclock() + remaining;
while (true)
{
#ifdef __linux__
// NOTE: Assumption that timer initialization has succeeded
u64 host_min_quantum = remaining <= 1000 ? 10 : 50;
#else
// Host scheduler quantum for windows (worst case)
// NOTE: On ps3 this function has very high accuracy
constexpr u64 host_min_quantum = 500;
#endif
if (remaining >= host_min_quantum)
{
#ifdef __linux__
// Do not wait for the last quantum to avoid loss of accuracy
thread_ctrl::wait_for(remaining - ((remaining % host_min_quantum) + host_min_quantum), false);
#else
// Wait on multiple of min quantum for large durations to avoid overloading low thread cpus
thread_ctrl::wait_for(remaining - (remaining % host_min_quantum), false);
#endif
}
// TODO: Determine best value for yield delay
else if (remaining >= host_min_quantum / 2)
{
std::this_thread::yield();
}
else
{
busy_wait(100);
}
const u64 current = rsx::uclock();
if (current >= until)
{
break;
}
remaining = until - current;
}
thread_ctrl::wait_for_accurate(utils::aligned_div(+g_cfg.video.driver_wakeup_delay, div));
}
u32 thread::get_fifo_cmd() const