GSB

Generic Interrupt Controller synchronization barrier

This instruction provides explicit synchronization mechanisms for GIC and GICR System instructions.

This is an alias of SYS. This means:

The encodings in this description are named to match the encodings of SYS.
The description of SYS gives the operational pseudocode, any constrained unpredictable behavior, and any operational information for this instruction.

is equivalent to

SYS #0, C12, C0, #<op2>{, <Xt>}

and is the preferred disassembly when SysOp('000', '1100', '0000', op2) == Sys_GSB.

Assembler Symbols

<gsb_op>

Is a GSB operation name, as listed for the GSB system instruction group, encoded in op2:

op2	<gsb_op>	Description
000	SYS	For more information, see GSB SYS.
001	ACK	For more information, see GSB ACK.

The description of SYS gives the operational pseudocode for this instruction.

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