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atomic.hpp: add some features and optimizations

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Add atomic_t<>::observe() (relaxed load)
Add atomic_fence_XXX() (barrier functions)
Get rid of MFENCE instruction, replace with no-op LOCK OR on stack.
Remove <atomic> dependence from stdafx.h and relevant headers.
This commit is contained in:
Nekotekina 2020-12-06 12:10:00 +03:00
parent 77aa9e58f2
commit b16cc618b5
14 changed files with 171 additions and 60 deletions
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14
rpcs3/Emu/Cell/Modules/cellSync.cpp
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@ -85,7 +85,7 @@ error_code cellSyncMutexLock(ppu_thread& ppu, vm::ptr<CellSyncMutex> mutex)
}
}
std::atomic_thread_fence(std::memory_order_acq_rel);
atomic_fence_acq_rel();
return CELL_OK;
}
@ -194,7 +194,7 @@ error_code cellSyncBarrierTryNotify(vm::ptr<CellSyncBarrier> barrier)
return CELL_SYNC_ERROR_ALIGN;
}
std::atomic_thread_fence(std::memory_order_acq_rel);
atomic_fence_acq_rel();
if (!barrier->ctrl.atomic_op(&CellSyncBarrier::try_notify))
{
@ -218,7 +218,7 @@ error_code cellSyncBarrierWait(ppu_thread& ppu, vm::ptr<CellSyncBarrier> barrier
return CELL_SYNC_ERROR_ALIGN;
}
std::atomic_thread_fence(std::memory_order_acq_rel);
atomic_fence_acq_rel();
while (!barrier->ctrl.atomic_op(&CellSyncBarrier::try_wait))
{
@ -245,7 +245,7 @@ error_code cellSyncBarrierTryWait(vm::ptr<CellSyncBarrier> barrier)
return CELL_SYNC_ERROR_ALIGN;
}
std::atomic_thread_fence(std::memory_order_acq_rel);
atomic_fence_acq_rel();
if (!barrier->ctrl.atomic_op(&CellSyncBarrier::try_wait))
{
@ -279,7 +279,7 @@ error_code cellSyncRwmInitialize(vm::ptr<CellSyncRwm> rwm, vm::ptr<void> buffer,
rwm->size = buffer_size;
rwm->buffer = buffer;
std::atomic_thread_fence(std::memory_order_acq_rel);
atomic_fence_acq_rel();
return CELL_OK;
}
@ -451,7 +451,7 @@ error_code cellSyncQueueInitialize(vm::ptr<CellSyncQueue> queue, vm::ptr<u8> buf
queue->depth = depth;
queue->buffer = buffer;
std::atomic_thread_fence(std::memory_order_acq_rel);
atomic_fence_acq_rel();
return CELL_OK;
}
@ -863,7 +863,7 @@ error_code cellSyncLFQueueInitialize(vm::ptr<CellSyncLFQueue> queue, vm::cptr<vo
}
}
std::atomic_thread_fence(std::memory_order_acq_rel);
atomic_fence_acq_rel();
}
else
{