CONFIG_ARM64 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm64

CONFIG_ARM64 (not configurable)

modulename: pcie-al.ko

and/or

pcie-hisi.ko

and/or

pcie-tegra194-acpi.ko

and/or

pci-thunder-ecam.ko

and/or

pci-thunder-pem.ko

and/or

pci-xgene.ko

configname: CONFIG_ARM64

Linux Kernel Configuration
└─>ARM64
In linux kernel since version 3.1 (release Date: 2011-10-24)  
ARM 64-bit (AArch64) Linux support.

source code:
drivers/pci/controller/dwc/pcie-al.c
selects
CONFIG_ACPI_CCA_REQUIRED
CONFIG_ACPI_GENERIC_GSI
CONFIG_ACPI_GTDT
CONFIG_ACPI_IORT
CONFIG_ACPI_REDUCED_HARDWARE_ONLY
CONFIG_ACPI_MCFG
CONFIG_ACPI_SPCR_TABLE
CONFIG_ACPI_PPTT
CONFIG_ARCH_HAS_DEBUG_WX
CONFIG_ARCH_BINFMT_ELF_STATE
CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK
CONFIG_ARCH_ENABLE_THP_MIGRATION
CONFIG_ARCH_HAS_CACHE_LINE_SIZE
CONFIG_ARCH_HAS_DEBUG_VIRTUAL
CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE
CONFIG_ARCH_HAS_DMA_PREP_COHERENT
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE
CONFIG_ARCH_HAS_FAST_MULTIPLIER
CONFIG_ARCH_HAS_FORTIFY_SOURCE
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL
CONFIG_ARCH_HAS_GIGANTIC_PAGE
CONFIG_ARCH_HAS_KCOV
CONFIG_ARCH_HAS_KEEPINITRD
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
CONFIG_ARCH_HAS_PTE_DEVMAP
CONFIG_ARCH_HAS_PTE_SPECIAL
CONFIG_ARCH_HAS_SETUP_DMA_OPS
CONFIG_ARCH_HAS_SET_DIRECT_MAP
CONFIG_ARCH_HAS_SET_MEMORY
CONFIG_ARCH_STACKWALK
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX
CONFIG_ARCH_HAS_STRICT_MODULE_RWX
CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE
CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU
CONFIG_ARCH_HAS_SYSCALL_WRAPPER
CONFIG_ARCH_HAS_TEARDOWN_DMA_OPS
CONFIG_ARCH_HAS_TICK_BROADCAST
CONFIG_ARCH_HAS_ZONE_DMA_SET
CONFIG_ARCH_HAVE_ELF_PROT
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG
CONFIG_ARCH_INLINE_READ_LOCK
CONFIG_ARCH_INLINE_READ_LOCK_BH
CONFIG_ARCH_INLINE_READ_LOCK_IRQ
CONFIG_ARCH_INLINE_READ_LOCK_IRQSAVE
CONFIG_ARCH_INLINE_READ_UNLOCK
CONFIG_ARCH_INLINE_READ_UNLOCK_BH
CONFIG_ARCH_INLINE_READ_UNLOCK_IRQ
CONFIG_ARCH_INLINE_READ_UNLOCK_IRQRESTORE
CONFIG_ARCH_INLINE_WRITE_LOCK
CONFIG_ARCH_INLINE_WRITE_LOCK_BH
CONFIG_ARCH_INLINE_WRITE_LOCK_IRQ
CONFIG_ARCH_INLINE_WRITE_LOCK_IRQSAVE
CONFIG_ARCH_INLINE_WRITE_UNLOCK
CONFIG_ARCH_INLINE_WRITE_UNLOCK_BH
CONFIG_ARCH_INLINE_WRITE_UNLOCK_IRQ
CONFIG_ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
CONFIG_ARCH_INLINE_SPIN_TRYLOCK
CONFIG_ARCH_INLINE_SPIN_TRYLOCK_BH
CONFIG_ARCH_INLINE_SPIN_LOCK
CONFIG_ARCH_INLINE_SPIN_LOCK_BH
CONFIG_ARCH_INLINE_SPIN_LOCK_IRQ
CONFIG_ARCH_INLINE_SPIN_LOCK_IRQSAVE
CONFIG_ARCH_INLINE_SPIN_UNLOCK
CONFIG_ARCH_INLINE_SPIN_UNLOCK_BH
CONFIG_ARCH_INLINE_SPIN_UNLOCK_IRQ
CONFIG_ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE
CONFIG_ARCH_KEEP_MEMBLOCK
CONFIG_ARCH_USE_CMPXCHG_LOCKREF
CONFIG_ARCH_USE_GNU_PROPERTY
CONFIG_ARCH_USE_MEMTEST
CONFIG_ARCH_USE_QUEUED_RWLOCKS
CONFIG_ARCH_USE_QUEUED_SPINLOCKS
CONFIG_ARCH_USE_SYM_ANNOTATIONS
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC
CONFIG_ARCH_SUPPORTS_HUGETLBFS
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE
CONFIG_ARCH_SUPPORTS_SHADOW_CALL_STACK
CONFIG_ARCH_SUPPORTS_LTO_CLANG
CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN
CONFIG_ARCH_SUPPORTS_CFI_CLANG
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW
CONFIG_ARCH_SUPPORTS_INT128
CONFIG_ARCH_SUPPORTS_NUMA_BALANCING
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
CONFIG_ARCH_WANT_DEFAULT_BPF_JIT
CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
CONFIG_ARCH_WANT_FRAME_POINTERS
CONFIG_ARCH_WANT_HUGE_PMD_SHARE
CONFIG_ARCH_WANT_LD_ORPHAN_WARN
CONFIG_ARCH_WANTS_NO_INSTR
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL
CONFIG_ARM_AMBA
CONFIG_ARM_ARCH_TIMER
CONFIG_ARM_GIC
CONFIG_AUDIT_ARCH_COMPAT_GENERIC
CONFIG_ARM_GIC_V2M
CONFIG_ARM_GIC_V3
CONFIG_ARM_GIC_V3_ITS
CONFIG_ARM_PSCI_FW
CONFIG_BUILDTIME_TABLE_SORT
CONFIG_CLONE_BACKWARDS
CONFIG_COMMON_CLK
CONFIG_CPU_PM
CONFIG_CRC32
CONFIG_DCACHE_WORD_ACCESS
CONFIG_DMA_DIRECT_REMAP
CONFIG_EDAC_SUPPORT
CONFIG_FRAME_POINTER
CONFIG_GENERIC_ALLOCATOR
CONFIG_GENERIC_ARCH_TOPOLOGY
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
CONFIG_GENERIC_CPU_AUTOPROBE
CONFIG_GENERIC_CPU_VULNERABILITIES
CONFIG_GENERIC_EARLY_IOREMAP
CONFIG_GENERIC_FIND_FIRST_BIT
CONFIG_GENERIC_IDLE_POLL_SETUP
CONFIG_GENERIC_IRQ_IPI
CONFIG_GENERIC_IRQ_PROBE
CONFIG_GENERIC_IRQ_SHOW
CONFIG_GENERIC_IRQ_SHOW_LEVEL
CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED
CONFIG_GENERIC_PCI_IOMAP
CONFIG_GENERIC_PTDUMP
CONFIG_GENERIC_SCHED_CLOCK
CONFIG_GENERIC_SMP_IDLE_THREAD
CONFIG_GENERIC_TIME_VSYSCALL
CONFIG_GENERIC_GETTIMEOFDAY
CONFIG_GENERIC_VDSO_TIME_NS
CONFIG_HANDLE_DOMAIN_IRQ
CONFIG_HARDIRQS_SW_RESEND
CONFIG_HAVE_MOVE_PMD
CONFIG_HAVE_MOVE_PUD
CONFIG_HAVE_PCI
CONFIG_HAVE_ACPI_APEI
CONFIG_HAVE_ALIGNED_STRUCT_PAGE
CONFIG_HAVE_ARCH_AUDITSYSCALL
CONFIG_HAVE_ARCH_BITREVERSE
CONFIG_HAVE_ARCH_COMPILER_H
CONFIG_HAVE_ARCH_HUGE_VMAP
CONFIG_HAVE_ARCH_JUMP_LABEL
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE
CONFIG_HAVE_ARCH_KASAN
CONFIG_HAVE_ARCH_KASAN_VMALLOC
CONFIG_HAVE_ARCH_KASAN_SW_TAGS
CONFIG_HAVE_ARCH_KASAN_HW_TAGS
CONFIG_HAVE_ARCH_KFENCE
CONFIG_HAVE_ARCH_KGDB
CONFIG_HAVE_ARCH_MMAP_RND_BITS
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS
CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET
CONFIG_HAVE_ARCH_SECCOMP_FILTER
CONFIG_HAVE_ARCH_STACKLEAK
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST
CONFIG_HAVE_ARCH_TRACEHOOK
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE
CONFIG_HAVE_ARCH_VMAP_STACK
CONFIG_HAVE_ARM_SMCCC
CONFIG_HAVE_ASM_MODVERSIONS
CONFIG_HAVE_EBPF_JIT
CONFIG_HAVE_C_RECORDMCOUNT
CONFIG_HAVE_CMPXCHG_DOUBLE
CONFIG_HAVE_CMPXCHG_LOCAL
CONFIG_HAVE_CONTEXT_TRACKING
CONFIG_HAVE_DEBUG_KMEMLEAK
CONFIG_HAVE_DMA_CONTIGUOUS
CONFIG_HAVE_DYNAMIC_FTRACE
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS
CONFIG_FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
CONFIG_HAVE_FAST_GUP
CONFIG_HAVE_FTRACE_MCOUNT_RECORD
CONFIG_HAVE_FUNCTION_TRACER
CONFIG_HAVE_FUNCTION_ERROR_INJECTION
CONFIG_HAVE_FUNCTION_GRAPH_TRACER
CONFIG_HAVE_GCC_PLUGINS
CONFIG_HAVE_HW_BREAKPOINT
CONFIG_HAVE_IRQ_TIME_ACCOUNTING
CONFIG_HAVE_NMI
CONFIG_HAVE_PATA_PLATFORM
CONFIG_HAVE_PERF_EVENTS
CONFIG_HAVE_PERF_REGS
CONFIG_HAVE_PERF_USER_STACK_DUMP
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API
CONFIG_HAVE_FUNCTION_ARG_ACCESS_API
CONFIG_HAVE_FUTEX_CMPXCHG
CONFIG_MMU_GATHER_RCU_TABLE_FREE
CONFIG_HAVE_RSEQ
CONFIG_HAVE_STACKPROTECTOR
CONFIG_HAVE_SYSCALL_TRACEPOINTS
CONFIG_HAVE_KPROBES
CONFIG_HAVE_KRETPROBES
CONFIG_HAVE_GENERIC_VDSO
CONFIG_IOMMU_DMA
CONFIG_IRQ_DOMAIN
CONFIG_IRQ_FORCED_THREADING
CONFIG_KASAN_VMALLOC
CONFIG_MODULES_USE_ELF_RELA
CONFIG_NEED_DMA_MAP_STATE
CONFIG_NEED_SG_DMA_LENGTH
CONFIG_OF
CONFIG_OF_EARLY_FLATTREE
CONFIG_PCI_DOMAINS_GENERIC
CONFIG_PCI_ECAM
CONFIG_PCI_SYSCALL
CONFIG_POWER_RESET
CONFIG_POWER_SUPPLY
CONFIG_SPARSE_IRQ
CONFIG_SWIOTLB
CONFIG_SYSCTL_EXCEPTION_TRACE
CONFIG_THREAD_INFO_IN_TASK
CONFIG_HAVE_ARCH_USERFAULTFD_MINOR
CONFIG_TRACE_IRQFLAGS_SUPPORT
CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT