diff options
| -rw-r--r-- | arch/x86/Kconfig.cpu | 4 | ||||
| -rw-r--r-- | include/asm-x86/required-features.h | 6 |
2 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index 2ad6301849a1..3d22bb8175b4 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -399,6 +399,10 @@ config X86_TSC def_bool y depends on ((MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2) && !X86_NUMAQ) || X86_64 +config X86_CMPXCHG64 + def_bool y + depends on X86_PAE || X86_64 + # this should be set for all -march=.. options where the compiler # generates cmov. config X86_CMOV diff --git a/include/asm-x86/required-features.h b/include/asm-x86/required-features.h index 7400d3ad75c6..8c387198ca88 100644 --- a/include/asm-x86/required-features.h +++ b/include/asm-x86/required-features.h @@ -19,9 +19,13 @@ #if defined(CONFIG_X86_PAE) || defined(CONFIG_X86_64) # define NEED_PAE (1<<(X86_FEATURE_PAE & 31)) -# define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31)) #else # define NEED_PAE 0 +#endif + +#ifdef CONFIG_X86_CMPXCHG64 +# define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31)) +#else # define NEED_CX8 0 #endif |