GICR_MPAMIDR, Report maximum PARTID and PMG Register
The GICR_MPAMIDR characteristics are:
Reports the maximum support PARTID and PMG values.
This register is present only when GICv3.1 is implemented. Otherwise, direct accesses to GICR_MPAMIDR are RES0.
A copy of this register is provided for each Redistributor.
When GICR_TYPER.MPAM==0, this register is RES0.
GICR_MPAMIDR is a 32-bit register.
The GICR_MPAMIDR bit assignments are:
PMGmax, bits [23:16]
Maximum PMG value supported.
PARTIDmax, bits [15:0]
Maximum PARTID value supported.
Accessing the GICR_MPAMIDR
GICR_MPAMIDR can be accessed through the memory-mapped interfaces:
This interface is accessible as follows:
- When GICD_CTLR.DS == 0b0 accesses to this register are RO.
- When IsAccessSecure() accesses to this register are RO.
- When !IsAccessSecure() accesses to this register are RO.