CONFIG_ARM_ERRATA_643719 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
ARM errata: LoUIS bit field in CLIDR register is incorrect
configname: CONFIG_ARM_ERRATA_643719
Linux Kernel Configuration
└─>System Type
└─>ARM errata: LoUIS bit field in CLIDR register is incorrect
In linux kernel since version 3.1 (release Date: 2011-10-24)
This option enables the workaround for the 643719 Cortex-A9 (prior to
r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
register returns zero when it should return one. The workaround
corrects this value, ensuring cache maintenance operations which use
it behave as intended and avoiding data corruption.
r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
register returns zero when it should return one. The workaround
corrects this value, ensuring cache maintenance operations which use
it behave as intended and avoiding data corruption.