diff options
| author | Bipin Ravi <bipin.ravi@arm.com> | 2022-12-22 14:19:59 -0600 |
|---|---|---|
| committer | Bipin Ravi <bipin.ravi@arm.com> | 2023-01-11 11:34:19 -0600 |
| commit | f9c6301d743405bd91b9a1fe433ce14fa60a830f (patch) | |
| tree | 2cc8ed44f99047128f86b6ec2b59d0c21aa5d934 /lib/cpus/cpu-ops.mk | |
| parent | 89d85ad0aad4fef7f56a9e18968b49e2b843ca9d (diff) | |
fix(cpus): workaround for Cortex-X2 erratum 2282622
Cortex-X2 erratum 2282622 is a Cat B erratum that applies to
all revisions <=r2p1 and is still open. The workaround is to set
CPUACTLR2_EL1[0] to 1 to force PLDW/PFRM ST to behave like
PLD/PRFM LD and not cause invalidations to other PE caches.
SDEN documentation:
https://developer.arm.com/documentation/SDEN1775100/latest
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: I43956aa4898a8608eedc5d0dd1471172c641a0c6
Diffstat (limited to 'lib/cpus/cpu-ops.mk')
| -rw-r--r-- | lib/cpus/cpu-ops.mk | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk index 05adad919..fa293e349 100644 --- a/lib/cpus/cpu-ops.mk +++ b/lib/cpus/cpu-ops.mk @@ -1,5 +1,5 @@ # -# Copyright (c) 2014-2022, Arm Limited and Contributors. All rights reserved. +# Copyright (c) 2014-2023, Arm Limited and Contributors. All rights reserved. # Copyright (c) 2020-2022, NVIDIA Corporation. All rights reserved. # # SPDX-License-Identifier: BSD-3-Clause @@ -657,6 +657,11 @@ ERRATA_X2_2216384 ?=0 # only to revision r2p0 of the Cortex-X2 cpu, it is fixed in r2p1. ERRATA_X2_2147715 ?=0 +# Flag to apply erratum 2282622 workaround during reset. This erratum applies +# to revision r0p0, r1p0, r2p0 and r2p1 of the Cortex-X2 cpu and is still +# open. +ERRATA_X2_2282622 ?=0 + # Flag to apply erratum 2371105 workaround during reset. This erratum applies # to revision r0p0, r1p0 and r2p0 of the Cortex-X2 cpu and is fixed in r2p1. ERRATA_X2_2371105 ?=0 @@ -1299,6 +1304,10 @@ $(eval $(call add_define,ERRATA_X2_2216384)) $(eval $(call assert_boolean,ERRATA_X2_2147715)) $(eval $(call add_define,ERRATA_X2_2147715)) +# Process ERRATA_X2_2282622 flag +$(eval $(call assert_boolean,ERRATA_X2_2282622)) +$(eval $(call add_define,ERRATA_X2_2282622)) + # Process ERRATA_X2_2371105 flag $(eval $(call assert_boolean,ERRATA_X2_2371105)) $(eval $(call add_define,ERRATA_X2_2371105)) |