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-rw-r--r--arch/arm/Kconfig129
1 files changed, 90 insertions, 39 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 9c26ba7244fb..db524e75c4a2 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1,10 +1,3 @@
-#
-# For a description of the syntax of this configuration file,
-# see Documentation/kbuild/kconfig-language.txt.
-#
-
-mainmenu "Linux Kernel Configuration"
-
config ARM
bool
default y
@@ -13,19 +6,23 @@ config ARM
select HAVE_MEMBLOCK
select RTC_LIB
select SYS_SUPPORTS_APM_EMULATION
- select GENERIC_ATOMIC64 if (!CPU_32v6K)
+ select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
select HAVE_ARCH_KGDB
select HAVE_KPROBES if (!XIP_KERNEL)
select HAVE_KRETPROBES if (HAVE_KPROBES)
select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
+ select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
+ select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
select HAVE_GENERIC_DMA_COHERENT
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_LZO
select HAVE_KERNEL_LZMA
+ select HAVE_IRQ_WORK
select HAVE_PERF_EVENTS
select PERF_USE_VMALLOC
select HAVE_REGS_AND_STACK_ACCESS_API
+ select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
help
The ARM series is a line of low-power-consumption RISC chip designs
licensed by ARM Ltd and targeted at embedded applications and
@@ -145,6 +142,9 @@ config ARCH_HAS_CPUFREQ
and that the relevant menu configurations are displayed for
it.
+config ARCH_HAS_CPU_IDLE_WAIT
+ def_bool y
+
config GENERIC_HWEIGHT
bool
default y
@@ -510,6 +510,7 @@ config ARCH_MMP
select GENERIC_CLOCKEVENTS
select TICK_ONESHOT
select PLAT_PXA
+ select SPARSE_IRQ
help
Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
@@ -565,6 +566,7 @@ config ARCH_TEGRA
select HAVE_CLK
select COMMON_CLKDEV
select ARCH_HAS_BARRIERS if CACHE_L2X0
+ select ARCH_HAS_CPUFREQ
help
This enables support for NVIDIA Tegra based systems (Tegra APX,
Tegra 6xx and Tegra 2 series).
@@ -587,6 +589,7 @@ config ARCH_PXA
select GENERIC_CLOCKEVENTS
select TICK_ONESHOT
select PLAT_PXA
+ select SPARSE_IRQ
help
Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
@@ -643,7 +646,7 @@ config ARCH_S3C2410
select ARCH_HAS_CPUFREQ
select HAVE_CLK
select ARCH_USES_GETTIMEOFFSET
- select HAVE_S3C2410_I2C
+ select HAVE_S3C2410_I2C if I2C
help
Samsung S3C2410X CPU based systems, such as the Simtec Electronics
BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
@@ -673,22 +676,23 @@ config ARCH_S3C64XX
select S3C_DEV_NAND
select USB_ARCH_HAS_OHCI
select SAMSUNG_GPIOLIB_4BIT
- select HAVE_S3C2410_I2C
- select HAVE_S3C2410_WATCHDOG
+ select HAVE_S3C2410_I2C if I2C
+ select HAVE_S3C2410_WATCHDOG if WATCHDOG
help
Samsung S3C64XX series based systems
-config ARCH_S5P6440
- bool "Samsung S5P6440"
+config ARCH_S5P64X0
+ bool "Samsung S5P6440 S5P6450"
select CPU_V6
select GENERIC_GPIO
select HAVE_CLK
- select HAVE_S3C2410_WATCHDOG
+ select HAVE_S3C2410_WATCHDOG if WATCHDOG
select ARCH_USES_GETTIMEOFFSET
- select HAVE_S3C2410_I2C
- select HAVE_S3C_RTC
+ select HAVE_S3C2410_I2C if I2C
+ select HAVE_S3C_RTC if RTC_CLASS
help
- Samsung S5P6440 CPU based systems
+ Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
+ SMDK6450.
config ARCH_S5P6442
bool "Samsung S5P6442"
@@ -696,7 +700,7 @@ config ARCH_S5P6442
select GENERIC_GPIO
select HAVE_CLK
select ARCH_USES_GETTIMEOFFSET
- select HAVE_S3C2410_WATCHDOG
+ select HAVE_S3C2410_WATCHDOG if WATCHDOG
help
Samsung S5P6442 CPU based systems
@@ -707,31 +711,37 @@ config ARCH_S5PC100
select CPU_V7
select ARM_L1_CACHE_SHIFT_6
select ARCH_USES_GETTIMEOFFSET
- select HAVE_S3C2410_I2C
- select HAVE_S3C_RTC
- select HAVE_S3C2410_WATCHDOG
+ select HAVE_S3C2410_I2C if I2C
+ select HAVE_S3C_RTC if RTC_CLASS
+ select HAVE_S3C2410_WATCHDOG if WATCHDOG
help
Samsung S5PC100 series based systems
config ARCH_S5PV210
bool "Samsung S5PV210/S5PC110"
select CPU_V7
+ select ARCH_SPARSEMEM_ENABLE
select GENERIC_GPIO
select HAVE_CLK
select ARM_L1_CACHE_SHIFT_6
+ select ARCH_HAS_CPUFREQ
select ARCH_USES_GETTIMEOFFSET
- select HAVE_S3C2410_I2C
- select HAVE_S3C_RTC
- select HAVE_S3C2410_WATCHDOG
+ select HAVE_S3C2410_I2C if I2C
+ select HAVE_S3C_RTC if RTC_CLASS
+ select HAVE_S3C2410_WATCHDOG if WATCHDOG
help
Samsung S5PV210/S5PC110 series based systems
config ARCH_S5PV310
bool "Samsung S5PV310/S5PC210"
select CPU_V7
+ select ARCH_SPARSEMEM_ENABLE
select GENERIC_GPIO
select HAVE_CLK
select GENERIC_CLOCKEVENTS
+ select HAVE_S3C_RTC if RTC_CLASS
+ select HAVE_S3C2410_I2C if I2C
+ select HAVE_S3C2410_WATCHDOG if WATCHDOG
help
Samsung S5PV310 series based systems
@@ -747,6 +757,15 @@ config ARCH_SHARK
Support for the StrongARM based Digital DNARD machine, also known
as "Shark" (<http://www.shark-linux.de/shark.html>).
+config ARCH_TCC_926
+ bool "Telechips TCC ARM926-based systems"
+ select CPU_ARM926T
+ select HAVE_CLK
+ select COMMON_CLKDEV
+ select GENERIC_CLOCKEVENTS
+ help
+ Support for Telechips TCC ARM926-based systems.
+
config ARCH_LH7A40X
bool "Sharp LH7A40X"
select CPU_ARM922T
@@ -812,7 +831,7 @@ config ARCH_OMAP
select GENERIC_CLOCKEVENTS
select ARCH_HAS_HOLES_MEMORYMODEL
help
- Support for TI's OMAP platform (OMAP1 and OMAP2).
+ Support for TI's OMAP platform (OMAP1/2/3/4).
config PLAT_SPEAR
bool "ST SPEAr"
@@ -915,6 +934,8 @@ source "arch/arm/plat-s5p/Kconfig"
source "arch/arm/plat-spear/Kconfig"
+source "arch/arm/plat-tcc/Kconfig"
+
if ARCH_S3C2410
source "arch/arm/mach-s3c2400/Kconfig"
source "arch/arm/mach-s3c2410/Kconfig"
@@ -928,7 +949,7 @@ if ARCH_S3C64XX
source "arch/arm/mach-s3c64xx/Kconfig"
endif
-source "arch/arm/mach-s5p6440/Kconfig"
+source "arch/arm/mach-s5p64x0/Kconfig"
source "arch/arm/mach-s5p6442/Kconfig"
@@ -1002,7 +1023,7 @@ endif
config ARM_ERRATA_411920
bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
- depends on CPU_V6 && !SMP
+ depends on CPU_V6
help
Invalidation of the Instruction Cache operation can
fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
@@ -1181,13 +1202,13 @@ source "kernel/time/Kconfig"
config SMP
bool "Symmetric Multi-Processing (EXPERIMENTAL)"
- depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
- MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
- ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
+ depends on EXPERIMENTAL
depends on GENERIC_CLOCKEVENTS
+ depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
+ MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
+ ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4
select USE_GENERIC_SMP_HELPERS
- select HAVE_ARM_SCU if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 ||\
- ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4
+ select HAVE_ARM_SCU
help
This enables support for systems with more than one CPU. If you have
a system with only one CPU, like most personal computers, say N. If
@@ -1201,10 +1222,23 @@ config SMP
See also <file:Documentation/i386/IO-APIC.txt>,
<file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
- <http://www.linuxdoc.org/docs.html#howto>.
+ <http://tldp.org/HOWTO/SMP-HOWTO.html>.
If you don't know what to do here, say N.
+config SMP_ON_UP
+ bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ depends on SMP && !XIP && !THUMB2_KERNEL
+ default y
+ help
+ SMP kernels contain instructions which fail on non-SMP processors.
+ Enabling this option allows the kernel to modify itself to make
+ these instructions safe. Disabling it allows about 1K of space
+ savings.
+
+ If you don't know what to do here, say Y.
+
config HAVE_ARM_SCU
bool
depends on SMP
@@ -1255,12 +1289,9 @@ config HOTPLUG_CPU
config LOCAL_TIMERS
bool "Use local timer interrupts"
- depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
- REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
- ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
+ depends on SMP
default y
- select HAVE_ARM_TWD if ARCH_REALVIEW || ARCH_OMAP4 || ARCH_S5PV310 || \
- ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS
+ select HAVE_ARM_TWD
help
Enable support for local timers on SMP platforms, rather then the
legacy IPI broadcast method. Local timers allows the system
@@ -1271,7 +1302,7 @@ source kernel/Kconfig.preempt
config HZ
int
- default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || \
+ default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
default AT91_TIMER_HZ if ARCH_AT91
@@ -1477,6 +1508,20 @@ config UACCESS_WITH_MEMCPY
However, if the CPU data cache is using a write-allocate mode,
this option is unlikely to provide any performance gain.
+config SECCOMP
+ bool
+ prompt "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.
+
config CC_STACKPROTECTOR
bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
help
@@ -1623,6 +1668,12 @@ if ARCH_HAS_CPUFREQ
source "drivers/cpufreq/Kconfig"
+config CPU_FREQ_IMX
+ tristate "CPUfreq driver for i.MX CPUs"
+ depends on ARCH_MXC && CPU_FREQ
+ help
+ This enables the CPUfreq driver for i.MX CPUs.
+
config CPU_FREQ_SA1100
bool
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.