Spinlock
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Table 17-57. SPINLOCK REGISTERS (continued)
Offset Acronym Register Name Section
854h LOCK_REG_21 This register is read when attempting to acquire a lock. Section 17.2.1.25
The lock is automatically taken if it was not taken and
the value returned by the read is zero.
If the lock was already taken, then the read returns one.
Writing a zero to this register frees the lock.
858h LOCK_REG_22 This register is read when attempting to acquire a lock. Section 17.2.1.26
The lock is automatically taken if it was not taken and
the value returned by the read is zero.
If the lock was already taken, then the read returns one.
Writing a zero to this register frees the lock.
85Ch LOCK_REG_23 This register is read when attempting to acquire a lock. Section 17.2.1.27
The lock is automatically taken if it was not taken and
the value returned by the read is zero.
If the lock was already taken, then the read returns one.
Writing a zero to this register frees the lock.
860h LOCK_REG_24 This register is read when attempting to acquire a lock. Section 17.2.1.28
The lock is automatically taken if it was not taken and
the value returned by the read is zero.
If the lock was already taken, then the read returns one.
Writing a zero to this register frees the lock.
864h LOCK_REG_25 This register is read when attempting to acquire a lock. Section 17.2.1.29
The lock is automatically taken if it was not taken and
the value returned by the read is zero.
If the lock was already taken, then the read returns one.
Writing a zero to this register frees the lock.
868h LOCK_REG_26 This register is read when attempting to acquire a lock. Section 17.2.1.30
The lock is automatically taken if it was not taken and
the value returned by the read is zero.
If the lock was already taken, then the read returns one.
Writing a zero to this register frees the lock.
86Ch LOCK_REG_27 This register is read when attempting to acquire a lock. Section 17.2.1.31
The lock is automatically taken if it was not taken and
the value returned by the read is zero.
If the lock was already taken, then the read returns one.
Writing a zero to this register frees the lock.
870h LOCK_REG_28 This register is read when attempting to acquire a lock. Section 17.2.1.32
The lock is automatically taken if it was not taken and
the value returned by the read is zero.
If the lock was already taken, then the read returns one.
Writing a zero to this register frees the lock.
874h LOCK_REG_29 This register is read when attempting to acquire a lock. Section 17.2.1.33
The lock is automatically taken if it was not taken and
the value returned by the read is zero.
If the lock was already taken, then the read returns one.
Writing a zero to this register frees the lock.
878h LOCK_REG_30 This register is read when attempting to acquire a lock. Section 17.2.1.34
The lock is automatically taken if it was not taken and
the value returned by the read is zero.
If the lock was already taken, then the read returns one.
Writing a zero to this register frees the lock.
87Ch LOCK_REG_31 This register is read when attempting to acquire a lock. Section 17.2.1.35
The lock is automatically taken if it was not taken and
the value returned by the read is zero.
If the lock was already taken, then the read returns one.
Writing a zero to this register frees the lock.
3308
Interprocessor Communication SPRUH73H–October 2011–Revised April 2013
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