LXR linux/drivers/sh/Kconfig

   1config INTC_USERIMASK
   2        bool "Userspace interrupt masking support"
   3        depends on ARCH_SHMOBILE || (SUPERH && CPU_SH4A)
   4        help
   5          This enables support for hardware-assisted userspace hardirq
   6          masking.
   7
   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.
  12
  13          If in doubt, say N.
  14
  15config INTC_BALANCING
  16        bool "Hardware IRQ balancing support"
  17        depends on SMP && SUPERH && CPU_SUBTYPE_SH7786
  18        help
  19          This enables support for IRQ auto-distribution mode on SH-X3
  20          SMP parts. All of the balancing and CPU wakeup decisions are
  21          taken care of automatically by hardware for distributed
  22          vectors.
  23
  24          If in doubt, say N.
  25