path: root/arch/s390/Kconfig

# SPDX-License-Identifier: GPL-2.0
config MMU
	def_bool y

config ZONE_DMA
	def_bool y

config CPU_BIG_ENDIAN
	def_bool y

config LOCKDEP_SUPPORT
	def_bool y

config STACKTRACE_SUPPORT
	def_bool y

config ARCH_HAS_ILOG2_U32
	def_bool n

config ARCH_HAS_ILOG2_U64
	def_bool n

config GENERIC_HWEIGHT
	def_bool y

config GENERIC_BUG
	def_bool y if BUG

config GENERIC_BUG_RELATIVE_POINTERS
	def_bool y

config GENERIC_LOCKBREAK
	def_bool y if PREEMPTION

config PGSTE
	def_bool y if KVM

config AUDIT_ARCH
	def_bool y

config NO_IOPORT_MAP
	def_bool y

config PCI_QUIRKS
	def_bool n

config ARCH_SUPPORTS_UPROBES
	def_bool y

config KASAN_SHADOW_OFFSET
	hex
	depends on KASAN
	default 0x18000000000000

config S390
	def_bool y
	#
	# Note: keep this list sorted alphabetically
	#
	imply IMA_SECURE_AND_OR_TRUSTED_BOOT
	select ARCH_BINFMT_ELF_STATE
	select ARCH_HAS_DEBUG_VM_PGTABLE
	select ARCH_HAS_DEBUG_WX
	select ARCH_HAS_DEVMEM_IS_ALLOWED
	select ARCH_HAS_ELF_RANDOMIZE
	select ARCH_HAS_FORCE_DMA_UNENCRYPTED
	select ARCH_HAS_FORTIFY_SOURCE
	select ARCH_HAS_GCOV_PROFILE_ALL
	select ARCH_HAS_GIGANTIC_PAGE
	select ARCH_HAS_KCOV
	select ARCH_HAS_MEM_ENCRYPT
	select ARCH_HAS_PTE_SPECIAL
	select ARCH_HAS_SCALED_CPUTIME
	select ARCH_HAS_SET_MEMORY
	select ARCH_HAS_STRICT_KERNEL_RWX
	select ARCH_HAS_STRICT_MODULE_RWX
	select ARCH_HAS_SYSCALL_WRAPPER
	select ARCH_HAS_UBSAN_SANITIZE_ALL
	select ARCH_HAS_VDSO_DATA
	select ARCH_HAVE_NMI_SAFE_CMPXCHG
	select ARCH_INLINE_READ_LOCK
	select ARCH_INLINE_READ_LOCK_BH
	select ARCH_INLINE_READ_LOCK_IRQ
	select ARCH_INLINE_READ_LOCK_IRQSAVE
	select ARCH_INLINE_READ_TRYLOCK
	select ARCH_INLINE_READ_UNLOCK
	select ARCH_INLINE_READ_UNLOCK_BH
	select ARCH_INLINE_READ_UNLOCK_IRQ
	select ARCH_INLINE_READ_UNLOCK_IRQRESTORE
	select ARCH_INLINE_SPIN_LOCK
	select ARCH_INLINE_SPIN_LOCK_BH
	select ARCH_INLINE_SPIN_LOCK_IRQ
	select ARCH_INLINE_SPIN_LOCK_IRQSAVE
	select ARCH_INLINE_SPIN_TRYLOCK
	select ARCH_INLINE_SPIN_TRYLOCK_BH
	select ARCH_INLINE_SPIN_UNLOCK
	select ARCH_INLINE_SPIN_UNLOCK_BH
	select ARCH_INLINE_SPIN_UNLOCK_IRQ
	select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE
	select ARCH_INLINE_WRITE_LOCK
	select ARCH_INLINE_WRITE_LOCK_BH
	select ARCH_INLINE_WRITE_LOCK_IRQ
	select ARCH_INLINE_WRITE_LOCK_IRQSAVE
	select ARCH_INLINE_WRITE_TRYLOCK
	select ARCH_INLINE_WRITE_UNLOCK
	select ARCH_INLINE_WRITE_UNLOCK_BH
	select ARCH_INLINE_WRITE_UNLOCK_IRQ
	select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
	select ARCH_STACKWALK
	select ARCH_SUPPORTS_ATOMIC_RMW
	select ARCH_SUPPORTS_DEBUG_PAGEALLOC
	select ARCH_SUPPORTS_NUMA_BALANCING
	select ARCH_USE_BUILTIN_BSWAP
	select ARCH_USE_CMPXCHG_LOCKREF
	select ARCH_WANTS_DYNAMIC_TASK_STRUCT
	select ARCH_WANT_DEFAULT_BPF_JIT
	select ARCH_WANT_IPC_PARSE_VERSION
	select BUILDTIME_TABLE_SORT
	select CLONE_BACKWARDS2
	select CPU_NO_EFFICIENT_FFS if !HAVE_MARCH_Z9_109_FEATURES
	select DMA_OPS if PCI
	select DYNAMIC_FTRACE if FUNCTION_TRACER
	select GENERIC_ALLOCATOR
	select GENERIC_CPU_AUTOPROBE
	select GENERIC_CPU_VULNERABILITIES
	select GENERIC_FIND_FIRST_BIT
	select GENERIC_GETTIMEOFDAY
	select GENERIC_PTDUMP
	select GENERIC_SMP_IDLE_THREAD
	select GENERIC_TIME_VSYSCALL
	select HAVE_ALIGNED_STRUCT_PAGE if SLUB
	select HAVE_ARCH_AUDITSYSCALL
	select HAVE_ARCH_JUMP_LABEL
	select HAVE_ARCH_JUMP_LABEL_RELATIVE
	select HAVE_ARCH_KASAN
	select HAVE_ARCH_KASAN_VMALLOC
	select HAVE_ARCH_SECCOMP_FILTER
	select HAVE_ARCH_SOFT_DIRTY
	select HAVE_ARCH_TRACEHOOK
	select HAVE_ARCH_TRANSPARENT_HUGEPAGE
	select HAVE_ARCH_VMAP_STACK
	select HAVE_ASM_MODVERSIONS
	select HAVE_CMPXCHG_DOUBLE
	select HAVE_CMPXCHG_LOCAL
	select HAVE_DEBUG_KMEMLEAK
	select HAVE_DMA_CONTIGUOUS
	select HAVE_DYNAMIC_FTRACE
	select HAVE_DYNAMIC_FTRACE_WITH_REGS
	select HAVE_EBPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES
	select HAVE_EFFICIENT_UNALIGNED_ACCESS
	select HAVE_FAST_GUP
	select HAVE_FENTRY
	select HAVE_FTRACE_MCOUNT_RECORD
	select HAVE_FUNCTION_ERROR_INJECTION
	select HAVE_FUNCTION_GRAPH_TRACER
	select HAVE_FUNCTION_TRACER
	select HAVE_FUTEX_CMPXCHG if FUTEX
	select HAVE_GCC_PLUGINS
	select HAVE_GENERIC_VDSO
	select HAVE_IRQ_EXIT_ON_IRQ_STACK
	select HAVE_KERNEL_BZIP2
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_LZ4
	select HAVE_KERNEL_LZMA
	select HAVE_KERNEL_LZO
	select HAVE_KERNEL_UNCOMPRESSED
	select HAVE_KERNEL_XZ
	select HAVE_KPROBES
	select HAVE_KPROBES_ON_FTRACE
	select HAVE_KRETPROBES
	select HAVE_KVM
	select HAVE_LIVEPATCH
	select HAVE_MEMBLOCK_PHYS_MAP
	select HAVE_MOD_ARCH_SPECIFIC
	select HAVE_NMI
	select HAVE_NOP_MCOUNT
	select HAVE_OPROFILE
	select HAVE_PCI
	select HAVE_PERF_EVENTS
	select HAVE_PERF_REGS
	select HAVE_PERF_USER_STACK_DUMP
	select HAVE_REGS_AND_STACK_ACCESS_API
	select HAVE_RELIABLE_STACKTRACE
	select HAVE_RSEQ
	select HAVE_SYSCALL_TRACEPOINTS
	select HAVE_VIRT_CPU_ACCOUNTING
	select HAVE_VIRT_CPU_ACCOUNTING_IDLE
	select IOMMU_HELPER		if PCI
	select IOMMU_SUPPORT		if PCI
	select MMU_GATHER_NO_GATHER
	select MMU_GATHER_RCU_TABLE_FREE
	select MODULES_USE_ELF_RELA
	select NEED_DMA_MAP_STATE	if PCI
	select NEED_SG_DMA_LENGTH	if PCI
	select OLD_SIGACTION
	select OLD_SIGSUSPEND3
	select PCI_DOMAINS		if PCI
	select PCI_MSI			if PCI
	select PCI_MSI_ARCH_FALLBACKS	if PCI_MSI
	select SPARSE_IRQ
	select SWIOTLB
	select SYSCTL_EXCEPTION_TRACE
	select THREAD_INFO_IN_TASK
	select TTY
	select VIRT_CPU_ACCOUNTING
	# Note: keep the above list sorted alphabetically

config SCHED_OMIT_FRAME_POINTER
	def_bool y

config PGTABLE_LEVELS
	int
	default 5

source "kernel/livepatch/Kconfig"

menu "Processor type and features"

config HAVE_MARCH_Z900_FEATURES
	def_bool n

config HAVE_MARCH_Z990_FEATURES
	def_bool n
	select HAVE_MARCH_Z900_FEATURES

config HAVE_MARCH_Z9_109_FEATURES
	def_bool n
	select HAVE_MARCH_Z990_FEATURES

config HAVE_MARCH_Z10_FEATURES
	def_bool n
	select HAVE_MARCH_Z9_109_FEATURES

config HAVE_MARCH_Z196_FEATURES
	def_bool n
	select HAVE_MARCH_Z10_FEATURES

config HAVE_MARCH_ZEC12_FEATURES
	def_bool n
	select HAVE_MARCH_Z196_FEATURES

config HAVE_MARCH_Z13_FEATURES
	def_bool n
	select HAVE_MARCH_ZEC12_FEATURES

config HAVE_MARCH_Z14_FEATURES
	def_bool n
	select HAVE_MARCH_Z13_FEATURES

config HAVE_MARCH_Z15_FEATURES
	def_bool n
	select HAVE_MARCH_Z14_FEATURES

choice
	prompt "Processor type"
	default MARCH_Z196

config MARCH_Z900
	bool "IBM zSeries model z800 and z900"
	select HAVE_MARCH_Z900_FEATURES
	depends on $(cc-option,-march=z900)
	help
	  Select this to enable optimizations for model z800/z900 (2064 and
	  2066 series). This will enable some optimizations that are not
	  available on older ESA/390 (31 Bit) only CPUs.

config MARCH_Z990
	bool "IBM zSeries model z890 and z990"
	select HAVE_MARCH_Z990_FEATURES
	depends on $(cc-option,-march=z990)
	help
	  Select this to enable optimizations for model z890/z990 (2084 and
	  2086 series). The kernel will be slightly faster but will not work
	  on older machines.

config MARCH_Z9_109
	bool "IBM System z9"
	select HAVE_MARCH_Z9_109_FEATURES
	depends on $(cc-option,-march=z9-109)
	help
	  Select this to enable optimizations for IBM System z9 (2094 and
	  2096 series). The kernel will be slightly faster but will not work
	  on older machines.

config MARCH_Z10
	bool "IBM System z10"
	select HAVE_MARCH_Z10_FEATURES
	depends on $(cc-option,-march=z10)
	help
	  Select this to enable optimizations for IBM System z10 (2097 and
	  2098 series). The kernel will be slightly faster but will not work
	  on older machines.

config MARCH_Z196
	bool "IBM zEnterprise 114 and 196"
	select