[IA64] fix generic/up builds

Jesse Barnes provided the original version of this patch months ago, but
other changes kept conflicting with it, so it got deferred.  Greg Edwards
dug it out of obscurity just over a week ago, and almost immediately
another conflicting patch appeared (Bob Picco's memory-less nodes).

I've resolved the conflicts and got it running again.  CONFIG_SGI_TIOCX
is set to "y" in defconfig, which causes a Tiger to not boot (oops in
tiocx_init).  But that can be resolved later ... get this in now before it
gets stale again.

Signed-off-by: Tony Luck <tony.luck@intel.com>

4 files changed, 61 insertions, 42 deletions

diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index b2e2f6509eb0..e1fb68ddec26 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_IA64_PALINFO)	+= palinfo.o
 obj-$(CONFIG_IOSAPIC)           += iosapic.o
 obj-$(CONFIG_MODULES)           += module.o
 obj-$(CONFIG_SMP)               += smp.o smpboot.o domain.o
+obj-$(CONFIG_NUMA)              += numa.o
 obj-$(CONFIG_PERFMON)           += perfmon_default_smpl.o
 obj-$(CONFIG_IA64_CYCLONE)      += cyclone.o
 obj-$(CONFIG_IA64_MCA_RECOVERY) += mca_recovery.o
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index cda06f88c66e..542256e98e60 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -640,9 +640,11 @@ acpi_boot_init (void)
                         if (smp_boot_data.cpu_phys_id[cpu] != hard_smp_processor_id())
                                 node_cpuid[i++].phys_id = smp_boot_data.cpu_phys_id[cpu];
         }
-        build_cpu_to_node_map();
 # endif
 #endif
+#ifdef CONFIG_ACPI_NUMA
+        build_cpu_to_node_map();
+#endif
         /* Make boot-up look pretty */
         printk(KERN_INFO "%d CPUs available, %d CPUs total\n", available_cpus, total_cpus);
         return 0;
diff --git a/arch/ia64/kernel/numa.c b/arch/ia64/kernel/numa.c
new file mode 100644
index 000000000000..a68ce6678092
--- /dev/null
+++ b/arch/ia64/kernel/numa.c
@@ -0,0 +1,57 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * ia64 kernel NUMA specific stuff
+ *
+ * Copyright (C) 2002 Erich Focht <efocht@ess.nec.de>
+ * Copyright (C) 2004 Silicon Graphics, Inc.
+ *   Jesse Barnes <jbarnes@sgi.com>
+ */
+#include <linux/config.h>
+#include <linux/topology.h>
+#include <linux/module.h>
+#include <asm/processor.h>
+#include <asm/smp.h>
+
+u8 cpu_to_node_map[NR_CPUS] __cacheline_aligned;
+EXPORT_SYMBOL(cpu_to_node_map);
+
+cpumask_t node_to_cpu_mask[MAX_NUMNODES] __cacheline_aligned;
+
+/**
+ * build_cpu_to_node_map - setup cpu to node and node to cpumask arrays
+ *
+ * Build cpu to node mapping and initialize the per node cpu masks using
+ * info from the node_cpuid array handed to us by ACPI.
+ */
+void __init build_cpu_to_node_map(void)
+{
+        int cpu, i, node;
+
+        for(node=0; node < MAX_NUMNODES; node++)
+                cpus_clear(node_to_cpu_mask[node]);
+
+        for(cpu = 0; cpu < NR_CPUS; ++cpu) {
+                node = -1;
+                for (i = 0; i < NR_CPUS; ++i)
+                        if (cpu_physical_id(cpu) == node_cpuid[i].phys_id) {
+                                node = node_cpuid[i].nid;
+                                break;
+                        }
+                cpu_to_node_map[cpu] = (node >= 0) ? node : 0;
+                if (node >= 0)
+                        cpu_set(cpu, node_to_cpu_mask[node]);
+        }
+}
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index 623b0a546709..7d72c0d872b3 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -525,47 +525,6 @@ smp_build_cpu_map (void)
         }
 }
 
-#ifdef CONFIG_NUMA
-
-/* on which node is each logical CPU (one cacheline even for 64 CPUs) */
-u8 cpu_to_node_map[NR_CPUS] __cacheline_aligned;
-EXPORT_SYMBOL(cpu_to_node_map);
-/* which logical CPUs are on which nodes */
-cpumask_t node_to_cpu_mask[MAX_NUMNODES] __cacheline_aligned;
-
-/*
- * Build cpu to node mapping and initialize the per node cpu masks.
- */
-void __init
-build_cpu_to_node_map (void)
-{
-        int cpu, i, node;
-
-        for(node=0; node<MAX_NUMNODES; node++)
-                cpus_clear(node_to_cpu_mask[node]);
-        for(cpu = 0; cpu < NR_CPUS; ++cpu) {
-                /*
-                 * All Itanium NUMA platforms I know use ACPI, so maybe we
-                 * can drop this ifdef completely.                    [EF]
-                 */
-#ifdef CONFIG_ACPI_NUMA
-                node = -1;
-                for (i = 0; i < NR_CPUS; ++i)
-                        if (cpu_physical_id(cpu) == node_cpuid[i].phys_id) {
-                                node = node_cpuid[i].nid;
-                                break;
-                        }
-#else
-#               error Fixme: Dunno how to build CPU-to-node map.
-#endif
-                cpu_to_node_map[cpu] = (node >= 0) ? node : 0;
-                if (node >= 0)
-                        cpu_set(cpu, node_to_cpu_mask[node]);
-        }
-}
-
-#endif /* CONFIG_NUMA */
-
 /*
  * Cycle through the APs sending Wakeup IPIs to boot each.
  */