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https://github.com/RPCS3/rpcs3.git
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499035512b
- Add vm_locking.h and vm_reservation.h and move relevant functions and types to these headers. - Change include order and make vm_ptr.h, vm_var.h and vm_ref.h headers usable invidually and them including vm.h instead of other way around - Because usage of vm::ptr now requires including vm_ptr.h instead of vm.h updated multiple #includes - Added additional #includes to vm_reservation.h and vm_locking to where vm::reservation_* and locking related functions are used
46 lines
1.0 KiB
C++
46 lines
1.0 KiB
C++
#pragma once
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#include "vm.h"
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#include "Utilities/cond.h"
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class notifier;
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namespace vm
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{
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// Get reservation status for further atomic update: last update timestamp
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inline atomic_t<u64>& reservation_acquire(u32 addr, u32 size)
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{
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// Access reservation info: stamp and the lock bit
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return reinterpret_cast<atomic_t<u64>*>(g_reservations)[addr / 128];
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}
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// Update reservation status
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inline void reservation_update(u32 addr, u32 size, bool lsb = false)
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{
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// Update reservation info with new timestamp
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reservation_acquire(addr, size) += 128;
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}
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// Get reservation sync variable
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inline shared_cond& reservation_notifier(u32 addr, u32 size)
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{
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return *reinterpret_cast<shared_cond*>(g_reservations2 + addr / 128 * 8);
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}
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void reservation_lock_internal(atomic_t<u64>&);
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inline atomic_t<u64>& reservation_lock(u32 addr, u32 size)
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{
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auto& res = vm::reservation_acquire(addr, size);
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if (UNLIKELY(atomic_storage<u64>::bts(res.raw(), 0)))
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{
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reservation_lock_internal(res);
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}
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return res;
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}
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} // namespace vm
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