From 6e9de18120988388cdae5097c09e774416d58745 Mon Sep 17 00:00:00 2001 From: John Keller Date: Wed, 22 Aug 2007 19:32:06 -0500 Subject: [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 Signed-off-by: Tony Luck --- arch/ia64/sn/pci/pcibr/pcibr_provider.c | 1 + arch/ia64/sn/pci/tioca_provider.c | 2 ++ arch/ia64/sn/pci/tioce_provider.c | 1 + 3 files changed, 4 insertions(+) (limited to 'arch/ia64/sn/pci') diff --git a/arch/ia64/sn/pci/pcibr/pcibr_provider.c b/arch/ia64/sn/pci/pcibr/pcibr_provider.c index 42485ad50ceb..ab3eaf85fe4d 100644 --- a/arch/ia64/sn/pci/pcibr/pcibr_provider.c +++ b/arch/ia64/sn/pci/pcibr/pcibr_provider.c @@ -145,6 +145,7 @@ pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont printk(KERN_WARNING "pcibr cannot allocate interrupt for error handler\n"); } + sn_set_err_irq_affinity(SGI_PCIASIC_ERROR); /* * Update the Bridge with the "kernel" pagesize diff --git a/arch/ia64/sn/pci/tioca_provider.c b/arch/ia64/sn/pci/tioca_provider.c index d798dd4d0dc4..ef048a674772 100644 --- a/arch/ia64/sn/pci/tioca_provider.c +++ b/arch/ia64/sn/pci/tioca_provider.c @@ -654,6 +654,8 @@ tioca_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont __FUNCTION__, SGI_TIOCA_ERROR, (int)tioca_common->ca_common.bs_persist_busnum); + sn_set_err_irq_affinity(SGI_TIOCA_ERROR); + /* Setup locality information */ controller->node = tioca_kern->ca_closest_node; return tioca_common; diff --git a/arch/ia64/sn/pci/tioce_provider.c b/arch/ia64/sn/pci/tioce_provider.c index 84b72b27e27f..cee9379d44e0 100644 --- a/arch/ia64/sn/pci/tioce_provider.c +++ b/arch/ia64/sn/pci/tioce_provider.c @@ -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; } -- cgit v1.2.3-55-g7522