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Diffstat (limited to 'arch/arm64/Kconfig')
| -rwxr-xr-x | arch/arm64/Kconfig | 738 |
1 files changed, 738 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig new file mode 100755 index 00000000..956892c1 --- /dev/null +++ b/arch/arm64/Kconfig @@ -0,0 +1,738 @@ +config ARM64 + def_bool y + select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE + select ARCH_HAS_OPP + select ARCH_USE_CMPXCHG_LOCKREF + select ARCH_HAS_OPP + select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST + 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 ARM_GIC_V3 + select BUILDTIME_EXTABLE_SORT + select AUDIT_ARCH_COMPAT_GENERIC + select CLONE_BACKWARDS + select COMMON_CLK + select CPU_PM if (SUSPEND || CPU_IDLE) + select DCACHE_WORD_ACCESS + select GENERIC_ALLOCATOR + 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_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_AUDITSYSCALL + select HAVE_ARCH_SECCOMP_FILTER + select HAVE_ARCH_TRACEHOOK + select HAVE_C_RECORDMCOUNT + select HAVE_CC_STACKPROTECTOR + 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_GENERIC_HARDIRQS + 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 + 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 ARM_HAS_SG_CHAIN + bool + +config NEED_MACH_GPIO_H + bool + help + Select this when mach/gpio.h is required to provide special + definitions for this platform. The need for mach/gpio.h should + be avoided when possible. + +config SWIOTLB + def_bool y + +config IOMMU_HELPER + def_bool SWIOTLB + +config FIX_EARLYCON_MEM + def_bool y + +source "init/Kconfig" + +source "kernel/Kconfig.freezer" + +choice + prompt "Platform selection" + default ARCH_SCX35L64 + + +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 + +config ARCH_SCX35L64 + select ARCH_SCX35L + select ARCH_SCX35 + select ARM_HAS_SG_CHAIN + select NEED_MACH_GPIO_H + bool "Spreadtrum 64-bit SOC (ARMv8 platform)" + help + Support for 64 bits Spreadtrum based systems. + +config ARCH_SCX35LT8 + select ARCH_SCX35L + select ARCH_SCX35 + select ARM_HAS_SG_CHAIN + select NEED_MACH_GPIO_H + bool "Spreadtrum SharkLT8 SOC (ARMv8 platform)" + help + Support for 64 bits Spreadtrum SharkLT8 based systems. + +endchoice + +config ARCH_SCX35L + bool + +config ARCH_SCX35 + bool + +menu "Spreadtrum Adie Type" + +config ADIE_SC2713 + bool "Spredtrum A-die SC2713 Chip Support" + default n + help + Say Y here to support for Spreadtrum a-die sc2713 chip. + +config ADIE_SC2713S + bool "Spredtrum A-die SC2713S Chip Support" + default n + help + Say Y here to support for Spreadtrum a-die sc2713s chip. + +config ADIE_SC2711 + bool "Spredtrum A-die SC2711 Chip Support" + default n + help + Say Y here to support for Spreadtrum a-die sc2711 chip. + +config ADIE_SC2723 + bool "Spredtrum A-die SC2723 Chip Support" + default n + help + Say Y here to support for Spreadtrum a-die sc2723 chip. +endmenu + +menu "Spreadtrum Board Type" + + +config MACH_SP9836AEA_FPGA + bool "sp9630aea FPGA Board" + depends on ARCH_SCX35 + depends on ARCH_SCX35L + depends on ARCH_SCX35L64 + default n + select SC_FPGA + select COMMON_CLK if OF + select CLKSRC_OF if OF + help + SPX35L64 fpga board based on sharkl64 serial. + +config MACH_SP9836AEA_4MOD + bool "sp9630aea 4mod Board" + depends on ARCH_SCX35 + depends on ARCH_SCX35L + depends on ARCH_SCX35L64 + default n + select COMMON_CLK if OF + select CLKSRC_OF if OF + help + SPX35L64 4mod board based on sharkl64 serial. + +config MACH_SP9836AEA_3MOD + bool "sp9630aea 3mod Board" + depends on ARCH_SCX35 + depends on ARCH_SCX35L + depends on ARCH_SCX35L64 + default n + select COMMON_CLK if OF + select CLKSRC_OF if OF + help + SPX35L64 3mod board based on sharkl64 serial. + + +config MACH_SP9838AEA_5MOD + bool "sp9638aea 5mod Board" + depends on ARCH_SCX35 + depends on ARCH_SCX35L + depends on ARCH_SCX35LT8 + default n + select COMMON_CLK if OF + select CLKSRC_OF if OF + help + SPX35LT8 5mod board based on sharklt8 serial. + +config MACH_SP9838AEA_POWER_DEBUG + bool "sp9638aea power comsumption debug Board" + depends on ARCH_SCX35 + depends on ARCH_SCX35L + depends on ARCH_SCX35LT8 + default n + select COMMON_CLK if OF + select CLKSRC_OF if OF + help + SPX35LT8 power comsumption debug board based on sharklt8 serial. + +config MACH_SP9838AEA_8CORE_LIGHT_SLEEP + bool "sp9638aea 8core light sleep Board" + depends on ARCH_SCX35 + depends on ARCH_SCX35L + depends on ARCH_SCX35LT8 + default n + select COMMON_CLK if OF + select CLKSRC_OF if OF + help + SPX35LT8 8core light sleep board based on sharklt8 serial. + +config MACH_SP9838AEA_FHD + bool "sp9638aea fhd Board" + depends on ARCH_SCX35 + depends on ARCH_SCX35L + depends on ARCH_SCX35LT8 + default n + select COMMON_CLK if OF + select CLKSRC_OF if OF + help + SPX35LT8 fhd board based on sharklt8 serial. + +config MACH_SS_SHARKLT8 + bool "SS SHARKLT8 Board" + depends on ARCH_SCX35 + depends on ARCH_SCX35L + depends on ARCH_SCX35LT8 + default n + select COMMON_CLK if OF + select CLKSRC_OF if OF + help + SPX35LT8 5mod board based on sharklt8 serial. + +config MACH_SS_SHARKLT8LIGHTSLEEP + bool "SS SHARKLT8 LIGHTSLEEP Board" + depends on ARCH_SCX35 + depends on ARCH_SCX35L + depends on ARCH_SCX35LT8 + default n + select COMMON_CLK if OF + select CLKSRC_OF if OF + help + SPX35LT8 lightsleep board based on sharklt8 serial. + +config MACH_SP9838AEA_FPGA + bool "sp9638aea fpga Board" + depends on ARCH_SCX35 + depends on ARCH_SCX35L + depends on ARCH_SCX35LT8 + default n + select COMMON_CLK if OF + select CLKSRC_OF if OF + help + SPX35LT8 fpga board based on sharklt8 serial. + + +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" + select USE_GENERIC_SMP_HELPERS + 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 DISABLE_CPU_SCHED_DOMAIN_BALANCE + bool "(EXPERIMENTAL) Disable CPU level scheduler load-balancing" + help + Disables scheduler load-balancing at CPU sched domain level. + +config SCHED_HMP + bool "(EXPERIMENTAL) Heterogenous multiprocessor scheduling" + depends on DISABLE_CPU_SCHED_DOMAIN_BALANCE && SCHED_MC && FAIR_GROUP_SCHED && !SCHED_AUTOGROUP + help + Experimental scheduler optimizations for heterogeneous platforms. + Attempts to introspectively select task affinity to optimize power + and performance. Basic support for multiple (>2) cpu types is in place, + but it has only been tested with two types of cpus. + There is currently no support for migration of task groups, hence + !SCHED_AUTOGROUP. Furthermore, normal load-balancing must be disabled + between cpus of different type (DISABLE_CPU_SCHED_DOMAIN_BALANCE). + +config SCHED_HMP_PRIO_FILTER + bool "(EXPERIMENTAL) Filter HMP migrations by task priority" + depends on SCHED_HMP + help + Enables task priority based HMP migration filter. Any task with + a NICE value above the threshold will always be on low-power cpus + with less compute capacity. + +config SCHED_HMP_PRIO_FILTER_VAL + int "NICE priority threshold" + default 5 + depends on SCHED_HMP_PRIO_FILTER + +config HMP_FAST_CPU_MASK + string "HMP scheduler fast CPU mask" + depends on SCHED_HMP + help + Leave empty to use device tree information. + Specify the cpuids of the fast CPUs in the system as a list string, + e.g. cpuid 0+1 should be specified as 0-1. + +config HMP_SLOW_CPU_MASK + string "HMP scheduler slow CPU mask" + depends on SCHED_HMP + help + Leave empty to use device tree information. + Specify the cpuids of the slow CPUs in the system as a list string, + e.g. cpuid 0+1 should be specified as 0-1. + +config HMP_VARIABLE_SCALE + bool "Allows changing the load tracking scale through sysfs" + depends on SCHED_HMP + help + When turned on, this option exports the thresholds and load average + period value for the load tracking patches through sysfs. + The values can be modified to change the rate of load accumulation + and the thresholds used for HMP migration. + The load_avg_period_ms is the time in ms to reach a load average of + 0.5 for an idle task of 0 load average ratio that start a busy loop. + The up_threshold and down_threshold is the value to go to a faster + CPU or to go back to a slower cpu. + The {up,down}_threshold are devided by 1024 before being compared + to the load average. + For examples, with load_avg_period_ms = 128 and up_threshold = 512, + a running task with a load of 0 will be migrated to a bigger CPU after + 128ms, because after 128ms its load_avg_ratio is 0.5 and the real + up_threshold is 0.5. + This patch has the same behavior as changing the Y of the load + average computation to + (1002/1024)^(LOAD_AVG_PERIOD/load_avg_period_ms) + but it remove intermadiate overflows in computation. + +config HMP_FREQUENCY_INVARIANT_SCALE + bool "(EXPERIMENTAL) Frequency-Invariant Tracked Load for HMP" + depends on HMP_VARIABLE_SCALE && CPU_FREQ + help + Scales the current load contribution in line with the frequency + of the CPU that the task was executed on. + In this version, we use a simple linear scale derived from the + maximum frequency reported by CPUFreq. + Restricting tracked load to be scaled by the CPU's frequency + represents the consumption of possible compute capacity + (rather than consumption of actual instantaneous capacity as + normal) and allows the HMP migration's simple threshold + migration strategy to interact more predictably with CPUFreq's + asynchronous compute capacity changes. + +config SCHED_HMP_LITTLE_PACKING + bool "Small task packing for HMP" + depends on SCHED_HMP + default n + help + Allows the HMP Scheduler to pack small tasks into CPUs in the + smallest HMP domain. + Controlled by two sysfs files in sys/kernel/hmp. + packing_enable: 1 to enable, 0 to disable packing. Default 1. + packing_limit: runqueue load ratio where a RQ is considered + to be full. Default is NICE_0_LOAD * 9/8. + +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. + +config SWP_EMULATE + bool "Emulate SWP/SWPB instructions" + help + ARMv6 architecture deprecates use of the SWP/SWPB instructions. ARMv8 + oblosetes the use of SWP/SWPB instructions. ARMv7 multiprocessing + extensions introduce the ability to disable these instructions, + triggering an undefined instruction exception when executed. Say Y + here to enable software emulation of these instructions for userspace + (not kernel) using LDREX/STREX. Also creates /proc/cpu/swp_emulation + for statistics. + + In some older versions of glibc [<=2.8] SWP is used during futex + trylock() operations with the assumption that the code will not + be preempted. This invalid assumption may be more likely to fail + with SWP emulation enabled, leading to deadlock of the user + application. + + NOTE: when accessing uncached shared regions, LDREX/STREX rely + on an external transaction monitoring block called a global + monitor to maintain update atomicity. If your system does not + implement a global monitor, this option can cause programs that + perform SWP operations to uncached memory to deadlock. + + If unsure, say Y. + +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 ARMV7_COMPAT + bool "Kernel support for ARMv7 applications" + depends on COMPAT + select SWP_EMULATE + help + This option enables features that allow that ran on an ARMv7 or older + processor to continue functioning. + + If you want to execute ARMv7 applications, say Y + +config ARMV7_COMPAT_CPUINFO + bool "Report backwards compatible cpu features in /proc/cpuinfo" + depends on ARMV7_COMPAT + default y + help + This option makes /proc/cpuinfo list CPU features that an ARMv7 or + earlier kernel would report, but are not optional on an ARMv8 or later + processor. + + If you want to execute ARMv7 applications, say Y + +source "mm/Kconfig" + +config FORCE_MAX_ZONEORDER + int + default "14" if (ARM64_64K_PAGES && TRANSPARENT_HUGEPAGE) + default "11" + +config SECCOMP + bool "Enable seccomp to safely compute untrusted bytecode" + ---help--- + This kernel feature is useful for number crunching applications + that may need to compute untrusted bytecode during their + execution. By using pipes or other transports made available to + the process as file descriptors supporting the read/write + syscalls, it's possible to isolate those applications in + their own address space using seccomp. Once seccomp is + enabled via prctl(PR_SET_SECCOMP), it cannot be disabled + and the task is only allowed to execute a few safe syscalls + defined by each seccomp mode. + +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). + +choice + prompt "Kernel command line type" if CMDLINE != "" + default CMDLINE_FROM_BOOTLOADER + +config CMDLINE_FROM_BOOTLOADER + bool "Use bootloader kernel arguments if available" + help + Uses the command-line options passed by the boot loader. If + the boot loader doesn't provide any, the default kernel command + string provided in CMDLINE will be used. + +config CMDLINE_EXTEND + bool "Extend bootloader kernel arguments" + help + The command-line arguments provided by the boot loader will be + appended to the default kernel command string. + +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. +endchoice + +config BUILD_ARM64_APPENDED_DTB_IMAGE + bool "Build a concatenated Image.gz/dtb by default" + depends on OF + help + Enabling this option will cause a concatenated Image.gz and list of + DTBs to be built by default (instead of a standalone Image.gz.) + The image will built in arch/arm64/boot/Image.gz-dtb + +config BUILD_ARM64_APPENDED_DTB_IMAGE_NAMES + string "Default dtb names" + depends on BUILD_ARM64_APPENDED_DTB_IMAGE + help + Space separated list of names of dtbs to append when + building a concatenated Image.gz-dtb. + +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" + +source "drivers/cpufreq/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" + +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" |