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[IA64] SN: Add support for CPU disable

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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>
This commit is contained in:
John Keller
2007-08-22 19:32:06 -05:00
committed by Tony Luck
parent 1aac0b5739
commit 6e9de18120
10 changed files with 64 additions and 4 deletions
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1
arch/ia64/sn/pci/tioce_provider.c
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@@ -1034,6 +1034,7 @@ tioce_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
tioce_common->ce_pcibus.bs_persist_segment,
tioce_common->ce_pcibus.bs_persist_busnum);
sn_set_err_irq_affinity(SGI_PCIASIC_ERROR);
return tioce_common;
}