CONFIG_FPU: FPU support

General informations

The Linux kernel configuration item CONFIG_FPU has multiple definitions:

FPU support found in arch/riscv/Kconfig

The configuration item CONFIG_FPU:

• prompt: FPU support
• type: bool
• depends on: (none)
• defined in arch/riscv/Kconfig
• found in Linux kernels: 4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD

Help text

Add support for floating point operations when an FPU is detected at boot. When this option is disabled, neither the kernel nor userspace may use the floating point unit.

If you don't know what to do here, say Y.

FPU support found in arch/openrisc/Kconfig

The configuration item CONFIG_FPU:

• prompt: FPU support
• type: bool
• depends on: (none)
• defined in arch/openrisc/Kconfig
• found in Linux kernels: 6.10–6.17, 6.18-rc+HEAD

Help text

Say N here if you want to disable all floating-point related procedures in the kernel and reduce binary size.

If you don't know what to do here, say Y.

found in arch/nios2/Kconfig

The configuration item CONFIG_FPU:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/nios2/Kconfig
• found in Linux kernels: 3.19, 4.0–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD

Help text

(none)

found in arch/m68k/Kconfig.cpu

The configuration item CONFIG_FPU:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/m68k/Kconfig.cpu
• found in Linux kernels: 3.2–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD

Help text

(none)

FPU support found in arch/nds32/Kconfig.cpu

The configuration item CONFIG_FPU:

• prompt: FPU support
• type: bool
• depends on: (none)
• defined in arch/nds32/Kconfig.cpu
• found in Linux kernels: 5.0–5.17, 5.17+HEAD

Help text

If FPU ISA is used in user space, this configuration shall be Y to enable required support in kernel such as fpu context switch and fpu exception handler.

If no FPU ISA is used in user space, say N.

found in arch/c6x/Kconfig

The configuration item CONFIG_FPU:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/c6x/Kconfig
• found in Linux kernels: 3.3–3.19, 4.0–4.20, 5.0–5.11

Help text

(none)

FPU present found in arch/mn10300/Kconfig

The configuration item CONFIG_FPU:

• prompt: FPU present
• type: bool
• depends on: CONFIG_MN10300_PROC_MN103E010 || CONFIG_MN10300_PROC_MN2WS0050
• defined in arch/mn10300/Kconfig
• found in Linux kernels: 2.6.25–2.6.39, 3.0–3.19, 4.0–4.16

Help text

(none)

found in arch/blackfin/Kconfig

The configuration item CONFIG_FPU:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/blackfin/Kconfig
• found in Linux kernels: 2.6.22–2.6.39, 3.0–3.19, 4.0–4.16

Help text

(none)

found in arch/h8300/Kconfig

The configuration item CONFIG_FPU:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/h8300/Kconfig
• found in Linux kernels: 2.5.68–2.5.75, 2.6.0–2.6.39, 3.0–3.12

Help text

(none)

found in arch/m68k/Kconfig

The configuration item CONFIG_FPU:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/m68k/Kconfig
• found in Linux kernels: 3.4–3.5

Help text

(none)

found in arch/m68k/Kconfig.nommu

The configuration item CONFIG_FPU:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/m68k/Kconfig.nommu
• found in Linux kernels: 2.6.39, 3.0–3.1

Help text

(none)

found in arch/m68knommu/Kconfig

The configuration item CONFIG_FPU:

• prompt:
• type: bool
• depends on: (none)
• defined in arch/m68knommu/Kconfig
• found in Linux kernels: 2.5.46–2.5.75, 2.6.0–2.6.38

Help text

(none)

Hardware

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This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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