diff options
Diffstat (limited to 'extra')
| -rw-r--r-- | extra/Configs/Config.arc | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/extra/Configs/Config.arc b/extra/Configs/Config.arc index 0c0bc71ce..c263dbf46 100644 --- a/extra/Configs/Config.arc +++ b/extra/Configs/Config.arc @@ -28,6 +28,14 @@ config CONFIG_ARC_CPU_HS endchoice +config CONFIG_ARC_HAS_ATOMICS + bool "Support for LLOCK/SCOND instructions" + default y + help + LLOCK/SCOND instructions are needed to implement atomic r-m-w + Otherwise libc needs kernel assisted atomic cmpxchg available + since v4.9 kernel + choice prompt "MMU Page Size" default CONFIG_ARC_PAGE_SIZE_8K |