CONFIG_AP_DEBUG is not available for thedefaultarchitecture x86.
Result is shown for architecture s390
default or selected kernelversion does not have config value CONFIG_AP_DEBUG.
Result is shown for kernelversion 6.10-rc4

Enable debug features for Adjunct Processor (ap) devices

configname: CONFIG_AP_DEBUG

Linux Kernel Configuration
└─>I/O subsystem
└─>Enable debug features for Adjunct Processor (ap) devices
Say 'Y' here to enable some additional debug features for Adjunct
Processor (ap) devices.

There will be some more sysfs attributes displayed for ap queues.

Do not enable on production level kernel build.

If unsure, say N.

depends
CONFIG_AP