CONFIG_PARISC is not available for thedefaultarchitecture x86.
Result is shown for architecture parisc

CONFIG_PARISC (not configurable)

configname: CONFIG_PARISC

Linux Kernel Configuration
└─>PARISC
In linux kernel since version 2.6.12  
The PA-RISC microprocessor is designed by Hewlett-Packard and used
in many of their workstations & servers (HP9000 700 and 800 series,
and later HP3000 series). The PA-RISC Linux project home page is
at <https://parisc.wiki.kernel.org>.

selects
CONFIG_ALTERNATE_USER_ADDRESS_SPACE
CONFIG_ARCH_32BIT_OFF_T
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT
CONFIG_HAVE_FUNCTION_TRACER
CONFIG_HAVE_FUNCTION_GRAPH_TRACER
CONFIG_HAVE_SYSCALL_TRACEPOINTS
CONFIG_ARCH_WANT_FRAME_POINTERS
CONFIG_ARCH_HAS_CPU_CACHE_ALIASING
CONFIG_ARCH_HAS_DMA_ALLOC
CONFIG_ARCH_HAS_ELF_RANDOMIZE
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX
CONFIG_ARCH_HAS_STRICT_MODULE_RWX
CONFIG_ARCH_HAS_UBSAN
CONFIG_ARCH_HAS_PTE_SPECIAL
CONFIG_ARCH_NO_SG_CHAIN
CONFIG_ARCH_SPLIT_ARG64
CONFIG_ARCH_SUPPORTS_HUGETLBFS
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE
CONFIG_ARCH_STACKWALK
CONFIG_ARCH_HAS_CACHE_LINE_SIZE
CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE
CONFIG_HAVE_RELIABLE_STACKTRACE
CONFIG_DMA_OPS
CONFIG_RTC_CLASS
CONFIG_RTC_DRV_GENERIC
CONFIG_INIT_ALL_POSSIBLE
CONFIG_BUG
CONFIG_HAVE_KERNEL_UNCOMPRESSED
CONFIG_HAVE_PCI
CONFIG_HAVE_PERF_EVENTS
CONFIG_HAVE_KERNEL_BZIP2
CONFIG_HAVE_KERNEL_GZIP
CONFIG_HAVE_KERNEL_LZ4
CONFIG_HAVE_KERNEL_LZMA
CONFIG_HAVE_KERNEL_LZO
CONFIG_HAVE_KERNEL_XZ
CONFIG_GENERIC_ATOMIC64
CONFIG_GENERIC_IRQ_PROBE
CONFIG_GENERIC_PCI_IOMAP
CONFIG_GENERIC_IOREMAP
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG
CONFIG_GENERIC_SMP_IDLE_THREAD
CONFIG_GENERIC_ARCH_TOPOLOGY
CONFIG_GENERIC_CPU_DEVICES
CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED
CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW
CONFIG_SYSCTL_EXCEPTION_TRACE
CONFIG_HAVE_MOD_ARCH_SPECIFIC
CONFIG_MODULES_USE_ELF_RELA
CONFIG_CLONE_BACKWARDS
CONFIG_TTY
CONFIG_HAS_IOPORT
CONFIG_HAVE_DEBUG_STACKOVERFLOW
CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS
CONFIG_HAVE_ARCH_MMAP_RND_BITS
CONFIG_HAVE_ARCH_AUDITSYSCALL
CONFIG_HAVE_ARCH_HASH
CONFIG_HAVE_ARCH_JUMP_LABEL
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE
CONFIG_HAVE_ARCH_KFENCE
CONFIG_HAVE_ARCH_SECCOMP_FILTER
CONFIG_HAVE_ARCH_TRACEHOOK
CONFIG_HAVE_EBPF_JIT
CONFIG_ARCH_WANT_DEFAULT_BPF_JIT
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API
CONFIG_HOTPLUG_CORE_SYNC_DEAD
CONFIG_GENERIC_SCHED_CLOCK
CONFIG_GENERIC_IRQ_MIGRATION
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
CONFIG_LEGACY_TIMER_TICK
CONFIG_CPU_NO_EFFICIENT_FFS
CONFIG_THREAD_INFO_IN_TASK
CONFIG_NEED_DMA_MAP_STATE
CONFIG_NEED_SG_DMA_LENGTH
CONFIG_HAVE_ARCH_KGDB
CONFIG_HAVE_KPROBES
CONFIG_HAVE_KRETPROBES
CONFIG_HAVE_DYNAMIC_FTRACE
CONFIG_HAVE_FTRACE_MCOUNT_RECORD
CONFIG_FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY
CONFIG_HAVE_KPROBES_ON_FTRACE
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK
CONFIG_TRACE_IRQFLAGS_SUPPORT
CONFIG_HAVE_FUNCTION_DESCRIPTORS
CONFIG_PCI_MSI_ARCH_FALLBACKS