path: root/arch/powerpc/Kconfig

source "arch/powerpc/platforms/Kconfig.cputype"

config PPC32
	bool
	default y if !PPC64

config 32BIT
	bool
	default y if PPC32

config 64BIT
	bool
	default y if PPC64

config WORD_SIZE
	int
	default 64 if PPC64
	default 32 if !PPC64

config ARCH_PHYS_ADDR_T_64BIT
       def_bool PPC64 || PHYS_64BIT

config ARCH_DMA_ADDR_T_64BIT
	def_bool ARCH_PHYS_ADDR_T_64BIT

config MMU
	bool
	default y

config GENERIC_CMOS_UPDATE
	def_bool y

config GENERIC_TIME_VSYSCALL
	def_bool y

config GENERIC_CLOCKEVENTS
	def_bool y

config HAVE_SETUP_PER_CPU_AREA
	def_bool PPC64

config NEED_PER_CPU_EMBED_FIRST_CHUNK
	def_bool PPC64

config NR_IRQS
	int "Number of virtual interrupt numbers"
	range 32 32768
	default "512"
	help
	  This defines the number of virtual interrupt numbers the kernel
	  can manage. Virtual interrupt numbers are what you see in
	  /proc/interrupts. If you configure your system to have too few,
	  drivers will fail to load or worse - handle with care.

config STACKTRACE_SUPPORT
	bool
	default y

config HAVE_LATENCYTOP_SUPPORT
	def_bool y

config TRACE_IRQFLAGS_SUPPORT
	bool
	default y

config LOCKDEP_SUPPORT
	bool
	default y

config RWSEM_GENERIC_SPINLOCK
	bool

config RWSEM_XCHGADD_ALGORITHM
	bool
	default y

config GENERIC_LOCKBREAK
	bool
	default y
	depends on SMP && PREEMPT

config ARCH_HAS_ILOG2_U32
	bool
	default y

config ARCH_HAS_ILOG2_U64
	bool
	default y if 64BIT

config ARCH_HAS_CPU_IDLE_WAIT
	bool
	default y

config GENERIC_HWEIGHT
	bool
	default y

config GENERIC_GPIO
	bool
	help
	  Generic GPIO API support

config ARCH_NO_VIRT_TO_BUS
	def_bool PPC64

config PPC
	bool
	default y
	select OF
	select OF_EARLY_FLATTREE
	select HAVE_FTRACE_MCOUNT_RECORD
	select HAVE_DYNAMIC_FTRACE
	select HAVE_FUNCTION_TRACER
	select HAVE_FUNCTION_GRAPH_TRACER
	select ARCH_WANT_OPTIONAL_GPIOLIB
	select HAVE_IDE
	select HAVE_IOREMAP_PROT
	select HAVE_EFFICIENT_UNALIGNED_ACCESS
	select HAVE_KPROBES
	select HAVE_ARCH_KGDB
	select HAVE_KRETPROBES
	select HAVE_ARCH_TRACEHOOK
	select HAVE_MEMBLOCK
	select HAVE_MEMBLOCK_NODE_MAP
	select HAVE_DMA_ATTRS
	select HAVE_DMA_API_DEBUG
	select USE_GENERIC_SMP_HELPERS if SMP
	select HAVE_OPROFILE
	select HAVE_SYSCALL_WRAPPERS if PPC64
	select GENERIC_ATOMIC64 if PPC32
	select HAVE_IRQ_WORK
	select HAVE_PERF_EVENTS
	select HAVE_REGS_AND_STACK_ACCESS_API
	select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
	select HAVE_GENERIC_HARDIRQS
	select HAVE_SPARSE_IRQ
	select IRQ_PER_CPU
	select GENERIC_IRQ_SHOW
	select GENERIC_IRQ_SHOW_LEVEL
	select IRQ_FORCED_THREADING
	select HAVE_RCU_TABLE_FREE if SMP
	select HAVE_SYSCALL_TRACEPOINTS
	select HAVE_BPF_JIT if (PPC64 && NET)
	select HAVE_ARCH_JUMP_LABEL
	select ARCH_HAVE_NMI_SAFE_CMPXCHG

config EARLY_PRINTK
	bool
	default y

config COMPAT
	bool
	default y if PPC64
	select COMPAT_BINFMT_ELF

config SYSVIPC_COMPAT
	bool
	depends on COMPAT && SYSVIPC
	default y

# All PPC32s use generic nvram driver through ppc_md
config GENERIC_NVRAM
	bool
	default y if PPC32

config SCHED_OMIT_FRAME_POINTER
	bool
	default y

config ARCH_MAY_HAVE_PC_FDC
	bool
	default !PPC_PSERIES || PCI

config PPC_OF
	def_bool y

config PPC_UDBG_16550
	bool
	default n

config GENERIC_TBSYNC
	bool
	default y if PPC32 && SMP
	default n

config AUDIT_ARCH
	bool
	default y

config GENERIC_BUG
	bool
	default y
	depends on BUG

config SYS_SUPPORTS_APM_EMULATION
	default y if PMAC_APM_EMU
	bool

config EPAPR_BOOT
	bool
	help
	  Used to allow a board to specify it wants an ePAPR compliant wrapper.
	default n

config DEFAULT_UIMAGE
	bool
	help
	  Used to allow a board to specify it wants a uImage built by default
	default n

config REDBOOT
	bool

config ARCH_HIBERNATION_POSSIBLE
	bool
	default y

config ARCH_SUSPEND_POSSIBLE
	def_bool y
	depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
		   (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x

config PPC_DCR_NATIVE
	bool
	default n

config PPC_DCR_MMIO
	bool
	default n

config PPC_DCR
	bool
	depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
	default y

config PPC_OF_PLATFORM_PCI
	bool
	depends on PCI
	depends on PPC64 # not supported on 32 bits yet
	default n

config ARCH_SUPPORTS_DEBUG_PAGEALLOC
	def_bool y

config PPC_ADV_DEBUG_REGS
	bool
	depends on 40x || BOOKE
	default y

config PPC_ADV_DEBUG_IACS
	int
	depends on PPC_ADV_DEBUG_REGS
	default 4 if 44x
	default 2

config PPC_ADV_DEBUG_DACS
	int
	depends on PPC_ADV_DEBUG_REGS
	default 2

config PPC_ADV_DEBUG_DVCS
	int
	depends on PPC_ADV_DEBUG_REGS
	default 2 if 44x
	default 0

config PPC_ADV_DEBUG_DAC_RANGE
	bool
	depends on PPC_ADV_DEBUG_REGS && 44x
	default y

source "init/Kconfig"

source "kernel/Kconfig.freezer"

source "arch/powerpc/sysdev/Kconfig"
source "arch/powerpc/platforms/Kconfig"

menu "Kernel options"

config HIGHMEM
	bool "High memory support"
	depends on PPC32

source kernel/time/Kconfig
source kernel/Kconfig.hz
source kernel/Kconfig.preempt
source "fs/Kconfig.binfmt"

config HUGETLB_PAGE_SIZE_VARIABLE
	bool
	depends on HUGETLB_PAGE
	default y

config MATH_EMULATION
	bool "Math emulation"
	depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
	---help---
	  Some PowerPC chips designed for embedded applications do not have
	  a floating-point unit and therefore do not implement the
	  floating-point instructions in the PowerPC instruction set.  If you
	  say Y here, the kernel will include code to emulate a floating-point
	  unit, which will allow programs that use floating-point
	  instructions