2 bool "Userspace interrupt masking support"
3 depends on ARCH_SHMOBILE || (SUPERH && CPU_SH4A)
5 This enables support for hardware-assisted userspace hardirq
8 SH-4A and newer interrupt blocks all support a special shadowed
9 page with all non-masking registers obscured when mapped in to
10 userspace. This is primarily for use by userspace device
11 drivers that are using special priority levels.