diff options
Diffstat (limited to 'arch/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 377 |
1 files changed, 377 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig new file mode 100644 index 00000000000..839f48c26ef --- /dev/null +++ b/arch/arm64/Kconfig @@ -0,0 +1,377 @@ +config ARM64 + def_bool y + select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE + select ARCH_HAS_OPP + select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST + select ARCH_USE_CMPXCHG_LOCKREF + select ARCH_SUPPORTS_ATOMIC_RMW + select ARCH_WANT_OPTIONAL_GPIOLIB + select ARCH_WANT_COMPAT_IPC_PARSE_VERSION + select ARCH_WANT_FRAME_POINTERS + select ARM_AMBA + select ARM_ARCH_TIMER + select ARM_GIC + select BUILDTIME_EXTABLE_SORT + select CLONE_BACKWARDS + select COMMON_CLK + select CPU_PM if (SUSPEND || CPU_IDLE) + select DCACHE_WORD_ACCESS + select GENERIC_CLOCKEVENTS + select GENERIC_CLOCKEVENTS_BROADCAST if SMP + select GENERIC_CPU_AUTOPROBE + select GENERIC_EARLY_IOREMAP + select GENERIC_IOMAP + select GENERIC_IRQ_PROBE + select GENERIC_IRQ_SHOW + select GENERIC_SCHED_CLOCK + select GENERIC_SMP_IDLE_THREAD + select GENERIC_STRNCPY_FROM_USER + select GENERIC_STRNLEN_USER + select GENERIC_TIME_VSYSCALL + select HARDIRQS_SW_RESEND + select HAVE_ARCH_JUMP_LABEL + select HAVE_ARCH_KGDB + select HAVE_ARCH_TRACEHOOK + select HAVE_C_RECORDMCOUNT + select HAVE_DEBUG_BUGVERBOSE + select HAVE_DEBUG_KMEMLEAK + select HAVE_DMA_API_DEBUG + select HAVE_DMA_ATTRS + select HAVE_DMA_CONTIGUOUS + select HAVE_DYNAMIC_FTRACE + select HAVE_EFFICIENT_UNALIGNED_ACCESS + select HAVE_FTRACE_MCOUNT_RECORD + select HAVE_FUNCTION_TRACER + select HAVE_FUNCTION_GRAPH_TRACER + select HAVE_GENERIC_DMA_COHERENT + select HAVE_HW_BREAKPOINT if PERF_EVENTS + select HAVE_MEMBLOCK + select HAVE_PATA_PLATFORM + select HAVE_PERF_EVENTS + select HAVE_PERF_REGS + select HAVE_PERF_USER_STACK_DUMP + select HAVE_SYSCALL_TRACEPOINTS + select IRQ_DOMAIN + select MODULES_USE_ELF_RELA + select NO_BOOTMEM + select OF + select OF_EARLY_FLATTREE + select OF_RESERVED_MEM + select PERF_USE_VMALLOC + select POWER_RESET + select POWER_SUPPLY + select RTC_LIB + select SPARSE_IRQ + select SYSCTL_EXCEPTION_TRACE + help + ARM 64-bit (AArch64) Linux support. + +config 64BIT + def_bool y + +config ARCH_PHYS_ADDR_T_64BIT + def_bool y + +config MMU + def_bool y + +config NO_IOPORT_MAP + def_bool y + +config STACKTRACE_SUPPORT + def_bool y + +config LOCKDEP_SUPPORT + def_bool y + +config TRACE_IRQFLAGS_SUPPORT + def_bool y + +config RWSEM_XCHGADD_ALGORITHM + def_bool y + +config GENERIC_HWEIGHT + def_bool y + +config GENERIC_CSUM + def_bool y + +config GENERIC_CALIBRATE_DELAY + def_bool y + +config ZONE_DMA + def_bool y + +config ARCH_DMA_ADDR_T_64BIT + def_bool y + +config NEED_DMA_MAP_STATE + def_bool y + +config NEED_SG_DMA_LENGTH + def_bool y + +config SWIOTLB + def_bool y + +config IOMMU_HELPER + def_bool SWIOTLB + +config KERNEL_MODE_NEON + def_bool y + +config FIX_EARLYCON_MEM + def_bool y + +source "init/Kconfig" + +source "kernel/Kconfig.freezer" + +menu "Platform selection" + +config ARCH_VEXPRESS + bool "ARMv8 software model (Versatile Express)" + select ARCH_REQUIRE_GPIOLIB + select COMMON_CLK_VERSATILE + select POWER_RESET_VEXPRESS + select VEXPRESS_CONFIG + help + This enables support for the ARMv8 software model (Versatile + Express). + +config ARCH_XGENE + bool "AppliedMicro X-Gene SOC Family" + help + This enables support for AppliedMicro X-Gene SOC Family + +endmenu + +menu "Bus support" + +config ARM_AMBA + bool + +endmenu + +menu "Kernel Features" + +config ARM64_64K_PAGES + bool "Enable 64KB pages support" + help + This feature enables 64KB pages support (4KB by default) + allowing only two levels of page tables and faster TLB + look-up. AArch32 emulation is not available when this feature + is enabled. + +config CPU_BIG_ENDIAN + bool "Build big-endian kernel" + help + Say Y if you plan on running a kernel in big-endian mode. + +config SMP + bool "Symmetric Multi-Processing" + help + This enables support for systems with more than one CPU. If + you say N here, the kernel will run on single and + multiprocessor machines, but will use only one CPU of a + multiprocessor machine. If you say Y here, the kernel will run + on many, but not all, single processor machines. On a single + processor machine, the kernel will run faster if you say N + here. + + If you don't know what to do here, say N. + +config SCHED_MC + bool "Multi-core scheduler support" + depends on SMP + help + Multi-core scheduler support improves the CPU scheduler's decision + making when dealing with multi-core CPU chips at a cost of slightly + increased overhead in some places. If unsure say N here. + +config SCHED_SMT + bool "SMT scheduler support" + depends on SMP + help + Improves the CPU scheduler's decision making when dealing with + MultiThreading at a cost of slightly increased overhead in some + places. If unsure say N here. + +config NR_CPUS + int "Maximum number of CPUs (2-32)" + range 2 32 + depends on SMP + # These have to remain sorted largest to smallest + default "8" + +config HOTPLUG_CPU + bool "Support for hot-pluggable CPUs" + depends on SMP + help + Say Y here to experiment with turning CPUs off and on. CPUs + can be controlled through /sys/devices/system/cpu. + +source kernel/Kconfig.preempt + +config HZ + int + default 100 + +config ARCH_HAS_HOLES_MEMORYMODEL + def_bool y if SPARSEMEM + +config ARCH_SPARSEMEM_ENABLE + def_bool y + select SPARSEMEM_VMEMMAP_ENABLE + +config ARCH_SPARSEMEM_DEFAULT + def_bool ARCH_SPARSEMEM_ENABLE + +config ARCH_SELECT_MEMORY_MODEL + def_bool ARCH_SPARSEMEM_ENABLE + +config HAVE_ARCH_PFN_VALID + def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM + +config HW_PERF_EVENTS + bool "Enable hardware performance counter support for perf events" + depends on PERF_EVENTS + default y + help + Enable hardware performance counter support for perf events. If + disabled, perf events will use software events only. + +config SYS_SUPPORTS_HUGETLBFS + def_bool y + +config ARCH_WANT_GENERAL_HUGETLB + def_bool y + +config ARCH_WANT_HUGE_PMD_SHARE + def_bool y if !ARM64_64K_PAGES + +config HAVE_ARCH_TRANSPARENT_HUGEPAGE + def_bool y + +config ARCH_HAS_CACHE_LINE_SIZE + def_bool y + +source "mm/Kconfig" + +config XEN_DOM0 + def_bool y + depends on XEN + +config XEN + bool "Xen guest support on ARM64 (EXPERIMENTAL)" + depends on ARM64 && OF + select SWIOTLB_XEN + help + Say Y if you want to run Linux in a Virtual Machine on Xen on ARM64. + +config FORCE_MAX_ZONEORDER + int + default "14" if (ARM64_64K_PAGES && TRANSPARENT_HUGEPAGE) + default "11" + +endmenu + +menu "Boot options" + +config CMDLINE + string "Default kernel command string" + default "" + help + Provide a set of default command-line options at build time by + entering them here. As a minimum, you should specify the the + root device (e.g. root=/dev/nfs). + +config CMDLINE_FORCE + bool "Always use the default kernel command string" + help + Always use the default kernel command string, even if the boot + loader passes other arguments to the kernel. + This is useful if you cannot or don't want to change the + command-line options your boot loader passes to the kernel. + +config EFI + bool "UEFI runtime support" + depends on OF && !CPU_BIG_ENDIAN + select LIBFDT + select UCS2_STRING + select EFI_PARAMS_FROM_FDT + default y + help + This option provides support for runtime services provided + by UEFI firmware (such as non-volatile variables, realtime + clock, and platform reset). A UEFI stub is also provided to + allow the kernel to be booted as an EFI application. This + is only useful on systems that have UEFI firmware. + +endmenu + +menu "Userspace binary formats" + +source "fs/Kconfig.binfmt" + +config COMPAT + bool "Kernel support for 32-bit EL0" + depends on !ARM64_64K_PAGES + select COMPAT_BINFMT_ELF + select HAVE_UID16 + select OLD_SIGSUSPEND3 + select COMPAT_OLD_SIGACTION + help + This option enables support for a 32-bit EL0 running under a 64-bit + kernel at EL1. AArch32-specific components such as system calls, + the user helper functions, VFP support and the ptrace interface are + handled appropriately by the kernel. + + If you want to execute 32-bit userspace applications, say Y. + +config SYSVIPC_COMPAT + def_bool y + depends on COMPAT && SYSVIPC + +endmenu + +menu "Power management options" + +source "kernel/power/Kconfig" + +config ARCH_SUSPEND_POSSIBLE + def_bool y + +config ARM64_CPU_SUSPEND + def_bool PM_SLEEP + +endmenu + +menu "CPU Power Management" + +source "drivers/cpuidle/Kconfig" + +source "drivers/cpufreq/Kconfig" + +endmenu + +source "net/Kconfig" + +source "drivers/Kconfig" + +source "drivers/firmware/Kconfig" + +source "fs/Kconfig" + +source "arch/arm64/kvm/Kconfig" + +source "arch/arm64/Kconfig.debug" + +source "security/Kconfig" + +source "crypto/Kconfig" +if CRYPTO +source "arch/arm64/crypto/Kconfig" +endif + +source "lib/Kconfig" |