CONFIG_MWINCHIP3D: Winchip-2/Winchip-2A/Winchip-3

General informations

The Linux kernel configuration item CONFIG_MWINCHIP3D has multiple definitions:

Winchip-2/Winchip-2A/Winchip-3 found in arch/x86/Kconfig.cpu

The configuration item CONFIG_MWINCHIP3D:

• prompt: Winchip-2/Winchip-2A/Winchip-3
• type: bool
• depends on: CONFIG_X86_32
• defined in arch/x86/Kconfig.cpu
• found in Linux kernels: 2.6.28–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

Select this for an IDT Winchip-2, 2A or 3. Linux and GCC treat this chip as a 586TSC with some extended instructions and alignment requirements. Also enable out of order memory stores for this CPU, which can increase performance of some operations.

Winchip-2A/Winchip-3 found in arch/x86/Kconfig.cpu

The configuration item CONFIG_MWINCHIP3D:

• prompt: Winchip-2A/Winchip-3
• type: bool
• depends on: CONFIG_X86_32
• defined in arch/x86/Kconfig.cpu
• found in Linux kernels: 2.6.24–2.6.27

Help text

Select this for an IDT Winchip-2A or 3. Linux and GCC treat this chip as a 586TSC with some extended instructions and alignment requirements. Also enable out of order memory stores for this CPU, which can increase performance of some operations.

Winchip-2A/Winchip-3 found in arch/i386/Kconfig.cpu

The configuration item CONFIG_MWINCHIP3D:

• prompt: Winchip-2A/Winchip-3
• type: bool
• depends on: (none)
• defined in arch/i386/Kconfig.cpu
• found in Linux kernels: 2.6.15–2.6.23

Help text

Select this for an IDT Winchip-2A or 3. Linux and GCC treat this chip as a 586TSC with some extended instructions and alignment requirements. Also enable out of order memory stores for this CPU, which can increase performance of some operations.

Winchip-2A/Winchip-3 found in arch/i386/Kconfig

The configuration item CONFIG_MWINCHIP3D:

• prompt: Winchip-2A/Winchip-3
• type: bool
• depends on: (none)
• defined in arch/i386/Kconfig
• found in Linux kernels: 2.5.45–2.5.75, 2.6.0–2.6.14

Help text

Select this for an IDT Winchip-2A or 3. Linux and GCC treat this chip as a 586TSC with some extended instructions and alignment reqirements. Also enable out of order memory stores for this CPU, which can increase performance of some operations.

Hardware

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The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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