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authorMax Filippov <jcmvbkbc@gmail.com>2017-06-05 02:43:51 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-17 06:39:38 +0200
commitafb415f72daa0d9d8169a20f3ea3efbf05f630ca (patch)
treefb835faaa0562ed1283c85859e5c5fb136cd075c /tools/perf/scripts/python/syscall-counts-by-pid.py
parent8b1aa267981223474cb5699b1c96eb7fa8eb08a8 (diff)
xtensa: don't use linux IRQ #0
commit e5c86679d5e864947a52fb31e45a425dea3e7fa9 upstream. Linux IRQ #0 is reserved for error reporting and may not be used. Increase NR_IRQS for one additional slot and increase irq_domain_add_legacy parameter first_irq value to 1, so that linux IRQ #0 is not associated with hardware IRQ #0 in legacy IRQ domains. Introduce macro XTENSA_PIC_LINUX_IRQ for static translation of xtensa PIC hardware IRQ # to linux IRQ #. Use this macro in XTFPGA platform data definitions. This fixes inability to use hardware IRQ #0 in configurations that don't use device tree and allows for non-identity mapping between linux IRQ # and hardware IRQ #. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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