[IA64] Increase max node count on SN platforms

[linux-2.6-omap-h63xx.git] / arch / ia64 / kernel / acpi.c

diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 24fe7c81e10890941e1c73e0856c371390521875..a4e218ce2edb89c045efc53ddb07b2eb2c472255 100644 (file)
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -420,6 +420,26 @@ int __devinitdata pxm_to_nid_map[MAX_PXM_DOMAINS];
 int __initdata nid_to_pxm_map[MAX_NUMNODES];
 static struct acpi_table_slit __initdata *slit_table;
 
+static int get_processor_proximity_domain(struct acpi_table_processor_affinity *pa)
+{
+       int pxm;
+
+       pxm = pa->proximity_domain;
+       if (ia64_platform_is("sn2"))
+               pxm += pa->reserved[0] << 8;
+       return pxm;
+}
+
+static int get_memory_proximity_domain(struct acpi_table_memory_affinity *ma)
+{
+       int pxm;
+
+       pxm = ma->proximity_domain;
+       if (ia64_platform_is("sn2"))
+               pxm += ma->reserved1[0] << 8;
+       return pxm;
+}
+
 /*
  * ACPI 2.0 SLIT (System Locality Information Table)
  * http://devresource.hp.com/devresource/Docs/TechPapers/IA64/slit.pdf
@@ -443,16 +463,20 @@ void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
 void __init
 acpi_numa_processor_affinity_init(struct acpi_table_processor_affinity *pa)
 {
+       int pxm;
+
        if (!pa->flags.enabled)
                return;
 
+       pxm = get_processor_proximity_domain(pa);
+
        /* record this node in proximity bitmap */
-       pxm_bit_set(pa->proximity_domain);
+       pxm_bit_set(pxm);
 
        node_cpuid[srat_num_cpus].phys_id =
            (pa->apic_id << 8) | (pa->lsapic_eid);
        /* nid should be overridden as logical node id later */
-       node_cpuid[srat_num_cpus].nid = pa->proximity_domain;
+       node_cpuid[srat_num_cpus].nid = pxm;
        srat_num_cpus++;
 }
 
@@ -460,10 +484,10 @@ void __init
 acpi_numa_memory_affinity_init(struct acpi_table_memory_affinity *ma)
 {
        unsigned long paddr, size;
-       u8 pxm;
+       int pxm;
        struct node_memblk_s *p, *q, *pend;
 
-       pxm = ma->proximity_domain;
+       pxm = get_memory_proximity_domain(ma);
 
        /* fill node memory chunk structure */
        paddr = ma->base_addr_hi;