diff options
Diffstat (limited to 'arch/arc/Kconfig')
| -rw-r--r-- | arch/arc/Kconfig | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index e7cee0a5c56d..78c0621d5819 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -8,6 +8,7 @@ config ARC def_bool y + select ARCH_SUPPORTS_ATOMIC_RMW if ARC_HAS_LLSC select BUILDTIME_EXTABLE_SORT select COMMON_CLK select CLONE_BACKWARDS @@ -22,6 +23,7 @@ config ARC select GENERIC_SMP_IDLE_THREAD select HAVE_ARCH_KGDB select HAVE_ARCH_TRACEHOOK + select HAVE_FUTEX_CMPXCHG select HAVE_IOREMAP_PROT select HAVE_KPROBES select HAVE_KRETPROBES @@ -115,6 +117,7 @@ if ISA_ARCOMPACT config ARC_CPU_750D bool "ARC750D" + select ARC_CANT_LLSC help Support for ARC750 core @@ -312,11 +315,11 @@ config ARC_PAGE_SIZE_8K config ARC_PAGE_SIZE_16K bool "16KB" - depends on ARC_MMU_V3 + depends on ARC_MMU_V3 || ARC_MMU_V4 config ARC_PAGE_SIZE_4K bool "4KB" - depends on ARC_MMU_V3 + depends on ARC_MMU_V3 || ARC_MMU_V4 endchoice @@ -362,7 +365,12 @@ config ARC_CANT_LLSC config ARC_HAS_LLSC bool "Insn: LLOCK/SCOND (efficient atomic ops)" default y - depends on !ARC_CPU_750D && !ARC_CANT_LLSC + depends on !ARC_CANT_LLSC + +config ARC_STAR_9000923308 + bool "Workaround for llock/scond livelock" + default y + depends on ISA_ARCV2 && SMP && ARC_HAS_LLSC config ARC_HAS_SWAPE bool "Insn: SWAPE (endian-swap)" @@ -378,6 +386,10 @@ config ARC_HAS_LL64 dest operands with 2 possible source operands. default y +config ARC_HAS_DIV_REM + bool "Insn: div, divu, rem, remu" + default y + config ARC_HAS_RTC bool "Local 64-bit r/o cycle counter" default n |