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vm: rewrite reservation bits

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Implement classic unique/shared locking concept.
Implement vm::reservation_light_op.
This commit is contained in:
Nekotekina
2020-10-08 16:13:55 +03:00
parent d962bb018d
commit 346a1d4433
10 changed files with 356 additions and 170 deletions
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rpcs3/Emu/Cell/Modules/cellSpursSpu.cpp
+7 -7
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@@ -1431,7 +1431,7 @@ s32 spursTasksetProcessRequest(spu_thread& spu, s32 request, u32* taskId, u32* i
// Find the number of tasks that have become ready since the last iteration
{
auto newlyReadyTasks = v128::andnot(ready, signalled | pready);
// TODO: Optimize this shit with std::popcount when it's known to be fixed
for (auto i = 0; i < 128; i++)
{
@@ -1597,14 +1597,14 @@ s32 spursTasksetProcessRequest(spu_thread& spu, s32 request, u32* taskId, u32* i
{
auto spurs = kernelCtxt->spurs;
auto [res, rtime] = vm::reservation_lock(spurs.addr(), 128, vm::dma_lockb);
spurs->readyCount(kernelCtxt->wklCurrentId).fetch_op([&](u8& val)
vm::reservation_light_op(spurs->readyCount(kernelCtxt->wklCurrentId), [&](atomic_t<u8>& val)
{
const s32 _new = val + numNewlyReadyTasks;
val = static_cast<u8>(std::clamp<s32>(_new, 0, 0xFF));
val.fetch_op([&](u8& val)
{
const s32 _new = val + numNewlyReadyTasks;
val = static_cast<u8>(std::clamp<s32>(_new, 0, 0xFF));
});
});
res.release(rtime + 128);
}
return rc;