arm64: Enable repeat tlbi workaround on KRYO4XX gold CPUs
authorShreyas K K <quic_shrekk@quicinc.com>
Thu, 12 May 2022 11:01:34 +0000 (16:31 +0530)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 25 May 2022 07:18:01 +0000 (09:18 +0200)
commita698bf1f728c95087a60e0b71cd5cc225ec3332f
treed4b44b557ed4870cc927d5270ac30d430da8fc55
parent696292b9b5f66c8d3134c514af2c9387e5157d5f
arm64: Enable repeat tlbi workaround on KRYO4XX gold CPUs

[ Upstream commit 51f559d66527e238f9a5f82027bff499784d4eac ]

Add KRYO4XX gold/big cores to the list of CPUs that need the
repeat TLBI workaround. Apply this to the affected
KRYO4XX cores (rcpe to rfpe).

The variant and revision bits are implementation defined and are
different from the their Cortex CPU counterparts on which they are
based on, i.e., (r0p0 to r3p0) is equivalent to (rcpe to rfpe).

Signed-off-by: Shreyas K K <quic_shrekk@quicinc.com>
Reviewed-by: Sai Prakash Ranjan <quic_saipraka@quicinc.com>
Link: https://lore.kernel.org/r/20220512110134.12179-1-quic_shrekk@quicinc.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Documentation/arm64/silicon-errata.rst
arch/arm64/kernel/cpu_errata.c