diff options
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 92 |
1 files changed, 68 insertions, 24 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 43594d5116ef..a00f4c1c7d71 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -52,6 +52,7 @@ config ARM select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_SYSCALL_TRACEPOINTS select HAVE_UID16 + select IRQ_FORCED_THREADING select KTIME_SCALAR select PERF_USE_VMALLOC select RTC_LIB @@ -441,7 +442,6 @@ 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 @@ -630,6 +630,7 @@ 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 +646,7 @@ 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 +701,7 @@ 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 +724,7 @@ 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 +740,6 @@ 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 +748,7 @@ 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 @@ -767,7 +767,7 @@ 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 @@ -787,7 +787,7 @@ 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 +1372,15 @@ 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 +1593,13 @@ 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 +1612,49 @@ 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 + +choice + depends on !HZ_FIXED + 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 + 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 +1791,9 @@ 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 +2102,7 @@ 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 +2212,13 @@ 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 +2243,7 @@ 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 |