diff options
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 129 |
1 files changed, 88 insertions, 41 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 43594d5116ef..3f7714d8d2d2 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -3,20 +3,21 @@ config ARM default y select ARCH_BINFMT_ELF_RANDOMIZE_PIE select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE - select ARCH_HAVE_CUSTOM_GPIO_H select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST + select ARCH_HAVE_CUSTOM_GPIO_H select ARCH_WANT_IPC_PARSE_VERSION select BUILDTIME_EXTABLE_SORT if MMU + select CLONE_BACKWARDS select CPU_PM if (SUSPEND || CPU_IDLE) select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN && MMU select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI) select GENERIC_CLOCKEVENTS_BROADCAST if SMP + select GENERIC_IDLE_POLL_SETUP select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW select GENERIC_PCI_IOMAP select GENERIC_SCHED_CLOCK select GENERIC_SMP_IDLE_THREAD - select GENERIC_IDLE_POLL_SETUP select GENERIC_STRNCPY_FROM_USER select GENERIC_STRNLEN_USER select HARDIRQS_SW_RESEND @@ -25,6 +26,7 @@ config ARM select HAVE_ARCH_SECCOMP_FILTER select HAVE_ARCH_TRACEHOOK select HAVE_BPF_JIT + select HAVE_CONTEXT_TRACKING select HAVE_C_RECORDMCOUNT select HAVE_DEBUG_KMEMLEAK select HAVE_DMA_API_DEBUG @@ -35,7 +37,6 @@ config ARM select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL) select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) select HAVE_GENERIC_DMA_COHERENT - select HAVE_GENERIC_HARDIRQS select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7)) select HAVE_IDE if PCI || ISA || PCMCIA select HAVE_IRQ_TIME_ACCOUNTING @@ -47,21 +48,22 @@ config ARM select HAVE_KPROBES if !XIP_KERNEL select HAVE_KRETPROBES if (HAVE_KPROBES) select HAVE_MEMBLOCK + select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND select HAVE_OPROFILE if (HAVE_PERF_EVENTS) select HAVE_PERF_EVENTS select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_SYSCALL_TRACEPOINTS select HAVE_UID16 + select IRQ_FORCED_THREADING select KTIME_SCALAR + select MODULES_USE_ELF_REL + select OLD_SIGACTION + select OLD_SIGSUSPEND3 select PERF_USE_VMALLOC select RTC_LIB select SYS_SUPPORTS_APM_EMULATION - select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND - select MODULES_USE_ELF_REL - select CLONE_BACKWARDS - select OLD_SIGSUSPEND3 - select OLD_SIGACTION - select HAVE_CONTEXT_TRACKING + # Above selects are sorted alphabetically; please add new ones + # according to that. Thanks. help The ARM series is a line of low-power-consumption RISC chip designs licensed by ARM Ltd and targeted at embedded applications and @@ -385,8 +387,8 @@ config ARCH_GEMINI bool "Cortina Systems Gemini" select ARCH_REQUIRE_GPIOLIB select ARCH_USES_GETTIMEOFFSET - select NEED_MACH_GPIO_H select CPU_FA526 + select NEED_MACH_GPIO_H help Support for the Cortina Systems Gemini family SoCs @@ -441,7 +443,6 @@ config ARCH_NETX config ARCH_IOP13XX bool "IOP13xx-based" depends on MMU - select ARCH_SUPPORTS_MSI select CPU_XSC3 select NEED_MACH_MEMORY_H select NEED_RET_TO_USER @@ -487,8 +488,8 @@ config ARCH_IXP4XX select GENERIC_CLOCKEVENTS select MIGHT_HAVE_PCI select NEED_MACH_IO_H - select USB_EHCI_BIG_ENDIAN_MMIO select USB_EHCI_BIG_ENDIAN_DESC + select USB_EHCI_BIG_ENDIAN_MMIO help Support for Intel's IXP4XX (XScale) family of processors. @@ -498,11 +499,11 @@ config ARCH_DOVE select CPU_PJ4 select GENERIC_CLOCKEVENTS select MIGHT_HAVE_PCI + select MVEBU_MBUS select PINCTRL select PINCTRL_DOVE select PLAT_ORION_LEGACY select USB_ARCH_HAS_EHCI - select MVEBU_MBUS help Support for the Marvell Dove SoC 88AP510 @@ -512,12 +513,12 @@ config ARCH_KIRKWOOD select ARCH_REQUIRE_GPIOLIB select CPU_FEROCEON select GENERIC_CLOCKEVENTS + select MVEBU_MBUS select PCI select PCI_QUIRKS select PINCTRL select PINCTRL_KIRKWOOD select PLAT_ORION_LEGACY - select MVEBU_MBUS help Support for the following Marvell Kirkwood series SoCs: 88F6180, 88F6192 and 88F6281. @@ -527,9 +528,9 @@ config ARCH_MV78XX0 select ARCH_REQUIRE_GPIOLIB select CPU_FEROCEON select GENERIC_CLOCKEVENTS + select MVEBU_MBUS select PCI select PLAT_ORION_LEGACY - select MVEBU_MBUS help Support for the following Marvell MV78xx0 series SoCs: MV781x0, MV782x0. @@ -540,9 +541,9 @@ config ARCH_ORION5X select ARCH_REQUIRE_GPIOLIB select CPU_FEROCEON select GENERIC_CLOCKEVENTS + select MVEBU_MBUS select PCI select PLAT_ORION_LEGACY - select MVEBU_MBUS help Support for the following Marvell Orion 5x series SoCs: Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), @@ -557,6 +558,7 @@ config ARCH_MMP select GENERIC_CLOCKEVENTS select GPIO_PXA select IRQ_DOMAIN + select MULTI_IRQ_HANDLER select NEED_MACH_GPIO_H select PINCTRL select PLAT_PXA @@ -630,6 +632,7 @@ config ARCH_MSM bool "Qualcomm MSM" select ARCH_REQUIRE_GPIOLIB select CLKDEV_LOOKUP + select CLKSRC_OF if OF select COMMON_CLK select GENERIC_CLOCKEVENTS help @@ -645,7 +648,7 @@ config ARCH_SHMOBILE select CLKDEV_LOOKUP select GENERIC_CLOCKEVENTS select HAVE_ARM_SCU if SMP - select HAVE_ARM_TWD if LOCAL_TIMERS + select HAVE_ARM_TWD if SMP select HAVE_CLK select HAVE_MACH_CLKDEV select HAVE_SMP @@ -700,7 +703,7 @@ config ARCH_S3C24XX select ARCH_HAS_CPUFREQ select ARCH_REQUIRE_GPIOLIB select CLKDEV_LOOKUP - select CLKSRC_MMIO + select CLKSRC_SAMSUNG_PWM select GENERIC_CLOCKEVENTS select GPIO_SAMSUNG select HAVE_CLK @@ -723,7 +726,7 @@ config ARCH_S3C64XX select ARCH_REQUIRE_GPIOLIB select ARM_VIC select CLKDEV_LOOKUP - select CLKSRC_MMIO + select CLKSRC_SAMSUNG_PWM select CPU_V6 select GENERIC_CLOCKEVENTS select GPIO_SAMSUNG @@ -739,7 +742,6 @@ config ARCH_S3C64XX select SAMSUNG_ATAGS select SAMSUNG_CLKSRC select SAMSUNG_GPIOLIB_4BIT - select SAMSUNG_IRQ_VIC_TIMER select SAMSUNG_WDT_RESET select USB_ARCH_HAS_OHCI help @@ -748,7 +750,7 @@ config ARCH_S3C64XX config ARCH_S5P64X0 bool "Samsung S5P6440 S5P6450" select CLKDEV_LOOKUP - select CLKSRC_MMIO + select CLKSRC_SAMSUNG_PWM select CPU_V6 select GENERIC_CLOCKEVENTS select GPIO_SAMSUNG @@ -757,8 +759,8 @@ config ARCH_S5P64X0 select HAVE_S3C2410_WATCHDOG if WATCHDOG select HAVE_S3C_RTC if RTC_CLASS select NEED_MACH_GPIO_H - select SAMSUNG_WDT_RESET select SAMSUNG_ATAGS + select SAMSUNG_WDT_RESET help Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440, SMDK6450. @@ -767,7 +769,7 @@ config ARCH_S5PC100 bool "Samsung S5PC100" select ARCH_REQUIRE_GPIOLIB select CLKDEV_LOOKUP - select CLKSRC_MMIO + select CLKSRC_SAMSUNG_PWM select CPU_V7 select GENERIC_CLOCKEVENTS select GPIO_SAMSUNG @@ -776,8 +778,8 @@ config ARCH_S5PC100 select HAVE_S3C2410_WATCHDOG if WATCHDOG select HAVE_S3C_RTC if RTC_CLASS select NEED_MACH_GPIO_H - select SAMSUNG_WDT_RESET select SAMSUNG_ATAGS + select SAMSUNG_WDT_RESET help Samsung S5PC100 series based systems @@ -787,7 +789,7 @@ config ARCH_S5PV210 select ARCH_HAS_HOLES_MEMORYMODEL select ARCH_SPARSEMEM_ENABLE select CLKDEV_LOOKUP - select CLKSRC_MMIO + select CLKSRC_SAMSUNG_PWM select CPU_V7 select GENERIC_CLOCKEVENTS select GPIO_SAMSUNG @@ -1372,6 +1374,15 @@ config ARM_ERRATA_798181 which sends an IPI to the CPUs that are running the same ASID as the one being invalidated. +config ARM_ERRATA_773022 + bool "ARM errata: incorrect instructions may be executed from loop buffer" + depends on CPU_V7 + help + This option enables the workaround for the 773022 Cortex-A15 + (up to r0p4) erratum. In certain rare sequences of code, the + loop buffer may deliver incorrect instructions. This + workaround disables the loop buffer to avoid the erratum. + endmenu source "arch/arm/common/Kconfig" @@ -1584,23 +1595,13 @@ config ARM_PSCI 0022A ("Power State Coordination Interface System Software on ARM processors"). -config LOCAL_TIMERS - bool "Use local timer interrupts" - depends on SMP - default y - help - Enable support for local timers on SMP platforms, rather then the - legacy IPI broadcast method. Local timers allows the system - accounting to be spread across the timer interval, preventing a - "thundering herd" at every timer tick. - # The GPIO number here must be sorted by descending number. In case of # a multiplatform kernel, we just want the highest value required by the # selected platforms. config ARCH_NR_GPIO int default 1024 if ARCH_SHMOBILE || ARCH_TEGRA - default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 + default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || SOC_DRA7XX default 392 if ARCH_U8500 default 352 if ARCH_VT8500 default 288 if ARCH_SUNXI @@ -1613,13 +1614,50 @@ config ARCH_NR_GPIO source kernel/Kconfig.preempt -config HZ +config HZ_FIXED int default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \ ARCH_S5PV210 || ARCH_EXYNOS4 default AT91_TIMER_HZ if ARCH_AT91 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE - default 100 + default 0 + +choice + depends on HZ_FIXED = 0 + prompt "Timer frequency" + +config HZ_100 + bool "100 Hz" + +config HZ_200 + bool "200 Hz" + +config HZ_250 + bool "250 Hz" + +config HZ_300 + bool "300 Hz" + +config HZ_500 + bool "500 Hz" + +config HZ_1000 + bool "1000 Hz" + +endchoice + +config HZ + int + default HZ_FIXED if HZ_FIXED != 0 + default 100 if HZ_100 + default 200 if HZ_200 + default 250 if HZ_250 + default 300 if HZ_300 + default 500 if HZ_500 + default 1000 + +config SCHED_HRTICK + def_bool HIGH_RES_TIMERS config SCHED_HRTICK def_bool HIGH_RES_TIMERS @@ -1756,6 +1794,9 @@ config HAVE_ARCH_TRANSPARENT_HUGEPAGE def_bool y depends on ARM_LPAE +config ARCH_WANT_GENERAL_HUGETLB + def_bool y + source "mm/Kconfig" config FORCE_MAX_ZONEORDER @@ -2064,8 +2105,7 @@ config KEXEC It is an ongoing process to be certain the hardware in a machine is properly shutdown, so do not be surprised if this code does not - initially work for you. It may help to enable device hotplugging - support. + initially work for you. config ATAGS_PROC bool "Export atags in procfs" @@ -2175,6 +2215,13 @@ config NEON Say Y to include support code for NEON, the ARMv7 Advanced SIMD Extension. +config KERNEL_MODE_NEON + bool "Support for NEON in kernel mode" + default n + depends on NEON + help + Say Y to include support for NEON in kernel mode. + endmenu menu "Userspace binary formats" @@ -2199,7 +2246,7 @@ source "kernel/power/Kconfig" config ARCH_SUSPEND_POSSIBLE depends on !ARCH_S5PC100 - depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \ + depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \ CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK def_bool y |