archive/rpcs3
1
0
Fork 0
mirror of https://github.com/RPCS3/rpcs3.git synced 2025-07-12 01:38:37 +12:00
Code Issues Projects Releases Packages Wiki Activity Actions

Linux: use futex_waitv syscall for atomic waiting

Browse source 
In order to make this possible, some unnecessary features were removed.
This commit is contained in:
Ivan Chikish 2023-07-31 23:57:26 +03:00 • committed by Ivan
parent 831a9fe012
commit d34287b2cc
51 changed files with 441 additions and 574 deletions
Download patch file Download diff file Expand all files Collapse all files

12
rpcs3/Emu/RSX/RSXThread.cpp
View file

@ -853,9 +853,8 @@ namespace rsx
g_fxo->get<vblank_thread>().set_thread(std::shared_ptr<named_thread<std::function<void()>>>(new named_thread<std::function<void()>>("VBlank Thread"sv, [this]() -> void
{
// See sys_timer_usleep for details
#ifdef __linux__
constexpr u32 host_min_quantum = 50;
constexpr u32 host_min_quantum = 10;
#else
constexpr u32 host_min_quantum = 500;
#endif
@ -878,8 +877,12 @@ namespace rsx
// Calculate time remaining to that time (0 if we passed it)
const u64 wait_for = current >= post_event_time ? 0 : post_event_time - current;
#ifdef __linux__
const u64 wait_sleep = wait_for;
#else
// Substract host operating system min sleep quantom to get sleep time
const u64 wait_sleep = wait_for - u64{wait_for >= host_min_quantum} * host_min_quantum;
#endif
if (!wait_for)
{
@ -3116,7 +3119,7 @@ namespace rsx
{
#ifdef __linux__
// NOTE: Assumption that timer initialization has succeeded
u64 host_min_quantum = remaining <= 1000 ? 10 : 50;
constexpr u64 host_min_quantum = 10;
#else
// Host scheduler quantum for windows (worst case)
// NOTE: On ps3 this function has very high accuracy
@ -3125,8 +3128,7 @@ namespace rsx
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);
thread_ctrl::wait_for(remaining, 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);