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Use RTM instructions (skylake+)

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This commit is contained in:
Nekotekina 2017-07-18 20:03:47 +03:00
parent 0fa148e65e
commit b24eb621ae
8 changed files with 190 additions and 21 deletions
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70
rpcs3/Emu/Cell/SPUThread.cpp
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@ -1,5 +1,6 @@
#include "stdafx.h"
#include "Utilities/lockless.h"
#include "Utilities/sysinfo.h"
#include "Emu/Memory/Memory.h"
#include "Emu/System.h"
@ -22,6 +23,8 @@
#include <atomic>
#include <thread>
const bool s_use_rtm = utils::has_rtm();
#ifdef _MSC_VER
bool operator ==(const u128& lhs, const u128& rhs)
{
@ -604,9 +607,22 @@ void SPUThread::process_mfc_cmd()
thread_ctrl::wait_for(100);
}
}
else if (s_use_rtm && utils::transaction_enter())
{
if (!vm::reader_lock{vm::try_to_lock})
{
_xabort(0);
}
rtime = vm::reservation_acquire(raddr, 128);
rdata = data;
_xend();
_ref<decltype(rdata)>(ch_mfc_cmd.lsa & 0x3ffff) = rdata;
return ch_atomic_stat.set_value(MFC_GETLLAR_SUCCESS);
}
else
{
// Fast path
rdata = data;
_mm_lfence();
}
@ -637,15 +653,36 @@ void SPUThread::process_mfc_cmd()
if (raddr == ch_mfc_cmd.eal && rtime == vm::reservation_acquire(raddr, 128) && rdata == data)
{
// TODO: vm::check_addr
vm::writer_lock lock;
if (rtime == vm::reservation_acquire(raddr, 128) && rdata == data)
if (s_use_rtm && utils::transaction_enter())
{
data = to_write;
result = true;
if (!vm::reader_lock{vm::try_to_lock})
{
_xabort(0);
}
vm::reservation_update(raddr, 128);
vm::notify(raddr, 128);
if (rtime == vm::reservation_acquire(raddr, 128) && rdata == data)
{
data = to_write;
result = true;
vm::reservation_update(raddr, 128);
vm::notify(raddr, 128);
}
_xend();
}
else
{
vm::writer_lock lock;
if (rtime == vm::reservation_acquire(raddr, 128) && rdata == data)
{
data = to_write;
result = true;
vm::reservation_update(raddr, 128);
vm::notify(raddr, 128);
}
}
}
@ -681,6 +718,23 @@ void SPUThread::process_mfc_cmd()
// Store unconditionally
// TODO: vm::check_addr
if (s_use_rtm && utils::transaction_enter())
{
if (!vm::reader_lock{vm::try_to_lock})
{
_xabort(0);
}
data = to_write;
vm::reservation_update(ch_mfc_cmd.eal, 128);
vm::notify(ch_mfc_cmd.eal, 128);
_xend();
ch_atomic_stat.set_value(MFC_PUTLLUC_SUCCESS);
return;
}
vm::writer_lock lock(0);
data = to_write;
vm::reservation_update(ch_mfc_cmd.eal, 128);