x86/platform/UV: Initialize PCH GPP_D_0 NMI Pin to be NMI source
The initialize PCH NMI I/O function is separate and may be moved to BIOS for security reasons. This function detects whether the PCH NMI config has already been done and if not, it will then initialize the PCH here. Signed-off-by: NMike Travis <travis@sgi.com> Reviewed-by: NRuss Anderson <rja@hpe.com> Acked-by: NThomas Gleixner <tglx@linutronix.de> Acked-by: NDimitri Sivanich <sivanich@hpe.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20170125163518.089387859@asylum.americas.sgi.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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