diff options
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 41 |
1 files changed, 32 insertions, 9 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 8ac460a8f4c..6d2f7f5c003 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -16,6 +16,7 @@ config ARM select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL select HAVE_ARCH_KGDB select HAVE_ARCH_TRACEHOOK + select HAVE_SYSCALL_TRACEPOINTS select HAVE_KPROBES if !XIP_KERNEL select HAVE_KRETPROBES if (HAVE_KPROBES) select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) @@ -1402,6 +1403,16 @@ config PL310_ERRATA_769419 on systems with an outer cache, the store buffer is drained explicitly. +config ARM_ERRATA_775420 + bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock" + depends on CPU_V7 + help + This option enables the workaround for the 775420 Cortex-A9 (r2p2, + r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance + operation aborts with MMU exception, it might cause the processor + to deadlock. This workaround puts DSB before executing ISB if + an abort may occur on cache maintenance. + endmenu source "arch/arm/common/Kconfig" @@ -1786,8 +1797,8 @@ config ALIGNMENT_TRAP configuration it is safe to say N, otherwise say Y. config UACCESS_WITH_MEMCPY - bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)" - depends on MMU && EXPERIMENTAL + bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()" + depends on MMU default y if CPU_FEROCEON help Implement faster copy_to_user and clear_user methods for CPU @@ -1828,12 +1839,6 @@ config CC_STACKPROTECTOR neutralized via a kernel panic. This feature requires gcc version 4.2 or above. -config DEPRECATED_PARAM_STRUCT - bool "Provide old way to pass kernel parameters" - help - This was deprecated in 2001 and announced to live on for 5 years. - Some old boot loaders still use this way. - config XEN_DOM0 def_bool y depends on XEN @@ -1856,6 +1861,23 @@ config USE_OF help Include support for flattened device tree machine descriptions. +config ATAGS + bool "Support for the traditional ATAGS boot data passing" if USE_OF + default y + help + This is the traditional way of passing data to the kernel at boot + time. If you are solely relying on the flattened device tree (or + the ARM_ATAG_DTB_COMPAT option) then you may unselect this option + to remove ATAGS support from your kernel binary. If unsure, + leave this to y. + +config DEPRECATED_PARAM_STRUCT + bool "Provide old way to pass kernel parameters" + depends on ATAGS + help + This was deprecated in 2001 and announced to live on for 5 years. + Some old boot loaders still use this way. + # Compressed boot loader in ROM. Yes, we really want to ask about # TEXT and BSS so we preserve their values in the config files. config ZBOOT_ROM_TEXT @@ -1982,6 +2004,7 @@ config CMDLINE choice prompt "Kernel command line type" if CMDLINE != "" default CMDLINE_FROM_BOOTLOADER + depends on ATAGS config CMDLINE_FROM_BOOTLOADER bool "Use bootloader kernel arguments if available" @@ -2051,7 +2074,7 @@ config KEXEC config ATAGS_PROC bool "Export atags in procfs" - depends on KEXEC + depends on ATAGS && KEXEC default y help Should the atags used to boot the kernel be exported in an "atags" |