Commit f8096f92 authored by Jan Beulich's avatar Jan Beulich Committed by Ingo Molnar

x86: separate cmpxchg8b checking from PAE checking

.. allowing the former to be use in non-PAE kernels, too.
Signed-off-by: default avatarJan Beulich <jbeulich@novell.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 492c2e47
......@@ -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
......
......@@ -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
......
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