GITS_PARTIDR, Set PARTID and PMG Register
The GITS_PARTIDR characteristics are:
Sets the PARTID and PMG values used for memory accesses by the ITS.
This register is present only when GIC, >=3.1 is implemented. Otherwise, direct accesses to GITS_PARTIDR are RES0.
A copy of this register is provided for each ITS.
When GITS_TYPER.MPAM==0, this register is RES0.
GITS_PARTIDR is a 32-bit register.
The GITS_PARTIDR bit assignments are:
PMG, bits [23:16]
PMG value used when ITS accesses memory.
It is IMPLEMENTATION DEFINED whether bits not needed to represent PMG values in the range 0 to PMG_MAX are stateful or RES0.
PARTID, bits [15:0]
PARTID value used when ITS accesses memory.
It is IMPLEMENTATION DEFINED whether bits not needed to represent PARTID values in the range 0 to PARTID_MAX are stateful or RES0.
Accessing the GITS_PARTIDR
GITS_PARTIDR can be accessed through the memory-mapped interfaces:
|GIC ITS control||0x0014|
This interface is accessible as follows:
- When GICD_CTLR.DS == 0b0 access to this register is RW.
- When IsAccessSecure() access to this register is RW.
- When !IsAccessSecure() access to this register is RW.