diff options
Diffstat (limited to 'arch/arc/Kconfig')
| -rw-r--r-- | arch/arc/Kconfig | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 5f448201955b..ff2a393b635c 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -28,6 +28,7 @@ config ARC select GENERIC_SMP_IDLE_THREAD select HAVE_ARCH_KGDB select HAVE_ARCH_TRACEHOOK + select HAVE_COPY_THREAD_TLS select HAVE_DEBUG_STACKOVERFLOW select HAVE_DEBUG_KMEMLEAK select HAVE_FUTEX_CMPXCHG if FUTEX @@ -350,9 +351,8 @@ config NODES_SHIFT Accessing memory beyond 1GB (with or w/o PAE) requires 2 memory zones. -if ISA_ARCOMPACT - config ARC_COMPACT_IRQ_LEVELS + depends on ISA_ARCOMPACT bool "Setup Timer IRQ as high Priority" # if SMP, LV2 enabled ONLY if ARC implementation has LV2 re-entrancy depends on !SMP @@ -360,14 +360,10 @@ config ARC_COMPACT_IRQ_LEVELS config ARC_FPU_SAVE_RESTORE bool "Enable FPU state persistence across context switch" help - Double Precision Floating Point unit had dedicated regs which - need to be saved/restored across context-switch. - Note that ARC FPU is overly simplistic, unlike say x86, which has - hardware pieces to allow software to conditionally save/restore, - based on actual usage of FPU by a task. Thus our implemn does - this for all tasks in system. - -endif #ISA_ARCOMPACT + ARCompact FPU has internal registers to assist with Double precision + Floating Point operations. There are control and stauts registers + for floating point exceptions and rounding modes. These are + preserved across task context switch when enabled. config ARC_CANT_LLSC def_bool n |