Max Filippov 38fef73c21 xtensa: implement fake NMI ... In case perf IRQ is the highest of the medium-level IRQs, and is alone on its level, it may be treated as NMI: - LOCKLEVEL is defined to be one level less than EXCM level, - IRQ masking never lowers current IRQ level, - new fake exception cause code, EXCCAUSE_MAPPED_NMI is assigned to that IRQ; new second level exception handler, do_nmi, assigned to it handles it as NMI, - atomic operations in configurations without s32c1i still need to mask all interrupts. Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>		2015-08-17 07:33:39 +03:00
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asm	xtensa: implement fake NMI	2015-08-17 07:33:39 +03:00
uapi/asm	xtensa: provide __NR_sync_file_range2 instead of __NR_sync_file_range	2015-03-04 12:07:05 +03:00