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PPU: improve LWARX/LDARX progression 

Should reduce spam ("...took too long")
This commit is contained in:
Nekotekina 2020-10-10 17:36:41 +03:00
parent ec7d243ee9
commit e8e3a3b2a2
1 changed files with 21 additions and 3 deletions
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24
rpcs3/Emu/Cell/PPUThread.cpp
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@ -1176,15 +1176,20 @@ static T ppu_load_acquire_reservation(ppu_thread& ppu, u32 addr)
{
ppu.rtime = vm::reservation_acquire(addr, sizeof(T));
if (ppu.rtime & 127)
if (ppu.rtime & vm::rsrv_unique_lock)
{
continue;
}
const auto rdata = data.load();
const be_t<u64> rdata = data.load();
if (ppu.use_full_rdata)
{
if (ppu.rtime & 127)
{
continue;
}
mov_rdata(ppu.rdata, vm::_ref<spu_rdata_t>(addr & -128));
}
@ -1195,7 +1200,20 @@ static T ppu_load_acquire_reservation(ppu_thread& ppu, u32 addr)
ppu_log.warning("%s took too long: %u", sizeof(T) == 4 ? "LWARX" : "LDARX", count);
}
std::memcpy(&ppu.rdata[addr & 0x78], &rdata, 8); // Store atomic 64bits of rdata
if (!ppu.use_full_rdata)
{
if (data.load() != rdata)
{
continue;
}
// Clear some possible lock bits which are permitted
ppu.rtime &= -128;
// Store only 64 bits of reservation data
std::memcpy(&ppu.rdata[addr & 0x78], &rdata, 8);
}
return static_cast<T>(rdata << data_off >> size_off);
}
}