no old file | htmldiff from- | (new) |
The MPAMCFG_EN characteristics are:
Enables a PARTID configuration as set in other MPAMCFG registers.
MPAMCFG_EN_s enables a Secure PARTID. MPAMCFG_EN_ns enables a Non-secure PARTID.
The power domain of MPAMCFG_EN is IMPLEMENTATION DEFINED.
This register is present only when (FEAT_MPAMv0p1 is implemented or FEAT_MPAMv1p1 is implemented) and MPAMF_IDR.HAS_ENDIS == 1. Otherwise, direct accesses to MPAMCFG_EN are RES0.
MPAMCFG_EN is a 32-bit register.
31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
RES0 | PARTID |
Reserved, RES0.
Selects the PARTID to enable.
This register is within the MPAM feature page memory frames. In a system that supports Secure and Non-secure memory maps, there must be both Secure and Non-secure MPAM feature pages.
MPAMCFG_EN_s must be accessible from the Secure MPAM feature page. MPAMCFG_EN_ns must be accessible from the Non-secure MPAM feature page.
MPAMCFG_EN_s and MPAMCFG_EN_ns must be separate registers. The Secure instance (MPAMCFG_EN_s) accesses the PARTID enable used for Secure PARTIDs, and the Non-secure instance (MPAMCFG_EN_ns) accesses the PARTID enable used for Non-secure PARTIDs.
When RIS is implemented, loads and stores to MPAMCFG_EN access the PARTID enable configuration settings for the PARTID enable resource instance selected by MPAMCFG_PART_SEL.RIS and the PARTID selected by MPAMCFG_PART_SEL.PARTID_SEL.
When RIS is not implemented, loads and stores to MPAMCFG_EN access the PARTID enable configuration settings for the PARTID selected by MPAMCFG_PART_SEL.PARTID_SEL.
When PARTID narrowing is implemented, loads and stores to MPAMCFG_EN access the PARTID enable configuration settings for the internal PARTID selected by MPAMCFG_PART_SEL.PARTID_SEL, and MPAMCFG_PART_SEL.INTERNAL must be 1.
When PARTID narrowing is not implemented, loads and stores to MPAMCFG_EN access the PARTID enable configuration settings for the request PARTID selected by MPAMCFG_PART_SEL.PARTID_SEL, and MPAMCFG_PART_SEL.INTERNAL must be 0.
Component | Frame | Offset | Instance |
---|---|---|---|
MPAM | MPAMF_BASE_s | 0x0300 | MPAMCFG_EN_s |
Accesses on this interface are WO/RAZ.
Component | Frame | Offset | Instance |
---|---|---|---|
MPAM | MPAMF_BASE_ns | 0x0300 | MPAMCFG_EN_ns |
Accesses on this interface are WO/RAZ.
30/09/2021 15:34; 092b4e1bbfbb45a293b198f9330c5f529ead2b0f
Copyright © 2010-2021 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.
no old file | htmldiff from- | (new) |