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SPU: Detect reservation spinning loop

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This commit is contained in:
Eladash 2020-04-26 05:48:31 +03:00 • committed by Ivan
parent 3be687cd18
commit 7d7909149f
1 changed files with 7 additions and 19 deletions
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26
rpcs3/Emu/Cell/SPUThread.cpp
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@ -1718,33 +1718,21 @@ bool spu_thread::process_mfc_cmd()
{ {
const u32 addr = ch_mfc_cmd.eal & -128; const u32 addr = ch_mfc_cmd.eal & -128;
const auto& data = vm::_ref<decltype(rdata)>(addr); const auto& data = vm::_ref<decltype(rdata)>(addr);
auto& dst = _ref<decltype(rdata)>(ch_mfc_cmd.lsa & 0x3ff80);
u64 ntime;
const bool is_polling = false; // TODO if (addr == raddr && g_cfg.core.spu_loop_detection && rtime == vm::reservation_acquire(addr, 128) && cmp_rdata(rdata, data))
if (is_polling)
{ {
rtime = vm::reservation_acquire(addr, 128) & -128; if (g_use_rtm)
while (cmp_rdata(rdata, data) && (vm::reservation_acquire(addr, 128)) == rtime)
{ {
state += cpu_flag::wait; state += cpu_flag::wait;
if (is_stopped())
{
break;
}
thread_ctrl::wait_for(500);
} }
if (test_stopped()) // Spinning, might as well yield cpu resources
{ std::this_thread::yield();
return false;
}
} }
auto& dst = _ref<decltype(rdata)>(ch_mfc_cmd.lsa & 0x3ff80);
u64 ntime;
for (u64 i = 0;; [&]() for (u64 i = 0;; [&]()
{ {
if (ntime & 127 && g_use_rtm && !(state & cpu_flag::wait)) if (ntime & 127 && g_use_rtm && !(state & cpu_flag::wait))