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CONFIG_MCORE2: Core 2/newer Xeon

General informations

The Linux kernel configuration item CONFIG_MCORE2 has multiple definitions:

arch/x86/Kconfig.cpu

The configuration item CONFIG_MCORE2:

prompt: Core 2/newer Xeon
type: tristate
depends on: (none)
defined in arch/x86/Kconfig.cpu
found in Linux Kernels: from 2.6.20 release still available on 2.6.34 release

Help text

Select this for Intel Core 2 and newer Core 2 Xeons (Xeon 51xx and 53xx) CPUs. You can distinguish newer from older Xeons by the CPU family in /proc/cpuinfo. Newer ones have 6 and older ones 15 (not a typo)

arch/x86_64/Kconfig

The configuration item CONFIG_MCORE2:

prompt: Intel Core2 / newer Xeon
type: tristate
depends on: (none)
defined in arch/x86_64/Kconfig
found in Linux Kernels: from 2.6.20 release still available on 2.6.34 release

Help text

Optimize for Intel Core2 and newer Xeons (51xx) You can distingush the newer Xeons from the older ones using the cpu family field in /proc/cpuinfo. 15 is a older Xeon (use CONFIG_MPSC then), 6 is a newer one. This rule only applies to CPUs that support EM64T.

arch/i386/Kconfig.cpu

The configuration item CONFIG_MCORE2:

prompt: Core 2/newer Xeon
type: tristate
depends on: (none)
defined in arch/i386/Kconfig.cpu
found in Linux Kernels: from 2.6.20 release still available on 2.6.34 release

Help text

Select this for Intel Core 2 and newer Core 2 Xeons (Xeon 51xx and 53xx) CPUs. You can distingush newer from older Xeons by the CPU family in /proc/cpuinfo. Newer ones have 6.

Hardware

LKDDb

Raw data from LKDDb:

(none)

Sources

Linux Kernel
Linux Kernel Driver DataBase (LKDDb)

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