Messages in this thread Patch in this message | | | Date | Wed, 27 Feb 2008 13:16:30 -0800 | From | Hiroshi Shimamoto <> | Subject | [PATCH] x86: X86_HT always enable on X86_64 SMP |
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From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
X86_HT is used for hyperthreading or multicore on 32-bit. The X86_HT on 64-bit is different from 32-bit, it means hyperthreading only. And X86_HT is not used on 64-bit except from cpu/initel_cacheinfo.c.
Unify X86_HT for hyperthreading or multicore. Turn X86_HT on when X86_64 and SMP are enabled.
Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> --- arch/x86/Kconfig | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 5bbb385..7168437 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -174,7 +174,7 @@ config X86_64_SMP config X86_HT bool depends on SMP - depends on (X86_32 && !(X86_VISWS || X86_VOYAGER)) || (X86_64 && !MK8) + depends on (X86_32 && !(X86_VISWS || X86_VOYAGER)) || X86_64 default y config X86_BIOS_REBOOT @@ -516,7 +516,7 @@ config NR_CPUS config SCHED_SMT bool "SMT (Hyperthreading) scheduler support" - depends on (X86_64 && SMP) || (X86_32 && X86_HT) + depends on X86_HT help SMT scheduler support improves the CPU scheduler's decision making when dealing with Intel Pentium 4 chips with HyperThreading at a @@ -526,7 +526,7 @@ config SCHED_SMT config SCHED_MC def_bool y prompt "Multi-core scheduler support" - depends on (X86_64 && SMP) || (X86_32 && X86_HT) + depends on X86_HT help Multi-core scheduler support improves the CPU scheduler's decision making when dealing with multi-core CPU chips at a cost of slightly -- 1.5.3.8
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