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CONFIG_INTC_USERIMASK: Userspace interrupt masking support

General informations

The Linux kernel configuration item CONFIG_INTC_USERIMASK has multiple definitions:

Userspace interrupt masking support found in drivers/sh/Kconfig

The configuration item CONFIG_INTC_USERIMASK:

Help text

This enables support for hardware-assisted userspace hardirq masking.

SH-4A and newer interrupt blocks all support a special shadowed page with all non-masking registers obscured when mapped in to userspace. This is primarily for use by userspace device drivers that are using special priority levels.

If in doubt, say N.

Userspace interrupt masking support found in drivers/sh/intc/Kconfig

The configuration item CONFIG_INTC_USERIMASK:

Help text

This enables support for hardware-assisted userspace hardirq masking.

SH-4A and newer interrupt blocks all support a special shadowed page with all non-masking registers obscured when mapped in to userspace. This is primarily for use by userspace device drivers that are using special priority levels.

If in doubt, say N.

Hardware

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