diff options
Diffstat (limited to 'arch/arc/Kconfig')
| -rw-r--r-- | arch/arc/Kconfig | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 6f4995ad9873..3162db540ee9 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -27,6 +27,8 @@ config ARC select GENERIC_SCHED_CLOCK select GENERIC_SMP_IDLE_THREAD select GENERIC_IOREMAP + select GENERIC_STRNCPY_FROM_USER if MMU + select GENERIC_STRNLEN_USER if MMU select HAVE_ARCH_KGDB select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_TRANSPARENT_HUGEPAGE if ARC_MMU_V4 @@ -491,11 +493,11 @@ config ARC_KVADDR_SIZE kernel-user gutter) config ARC_CURR_IN_REG - bool "Dedicate Register r25 for current_task pointer" + bool "cache current task pointer in gp" default y help - This reserved Register R25 to point to Current Task in - kernel mode. This saves memory access for each such access + This reserves gp register to point to Current Task in + kernel mode eliding memory access for each access config ARC_EMUL_UNALIGNED |