GITS_MPIDR, Report ITS's affinity.
The GITS_MPIDR characteristics are:
Reports ITS's affinity when the vPE Table is shared with Redistributors.
This register is present only when FEAT_GICv4p1 is implemented. Otherwise, direct accesses to GITS_MPIDR are RES0.
A copy of this register is provided for each ITS.
When GITS_TYPER.SVPET==0, this register is RES0.
GITS_MPIDR is a 32-bit register.
The GITS_MPIDR bit assignments are:
Aff3, bits [31:24]
The Affinity level 3 value for the ITS.
Aff2, bits [23:16]
The Affinity level 2 value for the ITS.
Aff1, bits [15:8]
The Affinity level 1 value for the ITS.
Accessing the GITS_MPIDR
GITS_MPIDR can be accessed through the memory-mapped interfaces:
|GIC ITS control||0x0018|
This interface is accessible as follows:
- When GICD_CTLR.DS == 0 accesses to this register are RO.
- When an access is Secure accesses to this register are RO.
- When an access is Non-secure accesses to this register are RO.