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SPU: use reservation spinlocks on writes (non-TSX)

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This should decrease contention by avoiding global lock
This commit is contained in:
Nekotekina 2018-05-21 20:25:05 +03:00
parent 182259e4a5
commit 72574b11ff
5 changed files with 209 additions and 134 deletions
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5
rpcs3/Emu/RSX/rsx_methods.cpp
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@ -118,14 +118,15 @@ namespace rsx
rsx->sync_point_request = true;
const u32 addr = get_address(method_registers.semaphore_offset_406e(), method_registers.semaphore_context_dma_406e());
if (g_use_rtm || addr >> 28 == 0x4)
if (LIKELY(g_use_rtm))
{
vm::write32(addr, arg);
}
else
{
vm::reader_lock lock;
auto& res = vm::reservation_lock(addr, 4);
vm::write32(addr, arg);
res &= ~1ull;
}
if (addr >> 28 != 0x4)