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54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
#include "stdafx.h"
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#include "Emu/System.h"
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#include "Emu/Cell/PPUModule.h"
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#include "sysPrxForUser.h"
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#include "Emu/Memory/wait_engine.h"
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extern logs::channel sysPrxForUser;
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void sys_spinlock_initialize(vm::ptr<atomic_be_t<u32>> lock)
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{
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sysPrxForUser.trace("sys_spinlock_initialize(lock=*0x%x)", lock);
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lock->exchange(0);
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}
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void sys_spinlock_lock(vm::ptr<atomic_be_t<u32>> lock)
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{
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sysPrxForUser.trace("sys_spinlock_lock(lock=*0x%x)", lock);
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// Try exchange with 0xabadcafe, repeat until exchanged with 0
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vm::wait_op(lock.addr(), 4, [&] { return lock->exchange(0xabadcafe) == 0; });
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}
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s32 sys_spinlock_trylock(vm::ptr<atomic_be_t<u32>> lock)
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{
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sysPrxForUser.trace("sys_spinlock_trylock(lock=*0x%x)", lock);
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if (lock->exchange(0xabadcafe))
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{
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return CELL_EBUSY;
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}
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return CELL_OK;
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}
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void sys_spinlock_unlock(vm::ptr<atomic_be_t<u32>> lock)
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{
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sysPrxForUser.trace("sys_spinlock_unlock(lock=*0x%x)", lock);
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lock->exchange(0);
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vm::notify_at(lock.addr(), 4);
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}
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void sysPrxForUser_sys_spinlock_init()
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{
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REG_FUNC(sysPrxForUser, sys_spinlock_initialize);
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REG_FUNC(sysPrxForUser, sys_spinlock_lock);
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REG_FUNC(sysPrxForUser, sys_spinlock_trylock);
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REG_FUNC(sysPrxForUser, sys_spinlock_unlock);
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}
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