tree 04f7de7bee8d38a4e871970afda136bb5ac853be
parent 1aac0b5739ae192ee812eee09625ebfc08c2d760
author John Keller <jpk@sgi.com> 1187829126 -0500
committer Tony Luck <tony.luck@intel.com> 1188640197 -0700

[IA64] SN: Add support for CPU disable

Add additional support for CPU disable on SN platforms.
Correctly setup the smp_affinity mask for I/O error IRQs.
Restrict the use of the feature to Altix 4000 and 450 systems
running with a CPU disable capable PROM, and do not allow disabling
of CPU 0.

Signed-off-by: John Keller <jpk@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>