#define ACPI_NUMA 0x80000000
#define _COMPONENT ACPI_NUMA
- ACPI_MODULE_NAME ("numa")
+ACPI_MODULE_NAME("numa")
-extern int __init acpi_table_parse_madt_family (enum acpi_table_id id, unsigned long madt_size, int entry_id, acpi_madt_entry_handler handler, unsigned int max_entries);
+static nodemask_t nodes_found_map = NODE_MASK_NONE;
+#define PXM_INVAL -1
+#define NID_INVAL -1
-void __init
-acpi_table_print_srat_entry (
- acpi_table_entry_header *header)
+/* maps to convert between proximity domain and logical node ID */
+int __cpuinitdata pxm_to_node_map[MAX_PXM_DOMAINS]
+ = { [0 ... MAX_PXM_DOMAINS - 1] = NID_INVAL };
+int __cpuinitdata node_to_pxm_map[MAX_NUMNODES]
+ = { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
+
+extern int __init acpi_table_parse_madt_family(enum acpi_table_id id,
+ unsigned long madt_size,
+ int entry_id,
+ acpi_madt_entry_handler handler,
+ unsigned int max_entries);
+
+int __cpuinit pxm_to_node(int pxm)
+{
+ if (pxm < 0)
+ return NID_INVAL;
+ return pxm_to_node_map[pxm];
+}
+
+int __cpuinit node_to_pxm(int node)
+{
+ if (node < 0)
+ return PXM_INVAL;
+ return node_to_pxm_map[node];
+}
+
+int __cpuinit acpi_map_pxm_to_node(int pxm)
+{
+ int node = pxm_to_node_map[pxm];
+
+ if (node < 0){
+ if (nodes_weight(nodes_found_map) >= MAX_NUMNODES)
+ return NID_INVAL;
+ node = first_unset_node(nodes_found_map);
+ pxm_to_node_map[pxm] = node;
+ node_to_pxm_map[node] = pxm;
+ node_set(node, nodes_found_map);
+ }
+
+ return node;
+}
+
+void __cpuinit acpi_unmap_pxm_to_node(int node)
+{
+ int pxm = node_to_pxm_map[node];
+ pxm_to_node_map[pxm] = NID_INVAL;
+ node_to_pxm_map[node] = PXM_INVAL;
+ node_clear(node, nodes_found_map);
+}
+
+void __init acpi_table_print_srat_entry(acpi_table_entry_header * header)
{
- ACPI_FUNCTION_NAME ("acpi_table_print_srat_entry");
+ ACPI_FUNCTION_NAME("acpi_table_print_srat_entry");
if (!header)
return;
case ACPI_SRAT_PROCESSOR_AFFINITY:
#ifdef ACPI_DEBUG_OUTPUT
- {
- struct acpi_table_processor_affinity *p =
- (struct acpi_table_processor_affinity*) header;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "SRAT Processor (id[0x%02x] eid[0x%02x]) in proximity domain %d %s\n",
- p->apic_id, p->lsapic_eid, p->proximity_domain,
- p->flags.enabled?"enabled":"disabled"));
- }
-#endif /* ACPI_DEBUG_OUTPUT */
+ {
+ struct acpi_table_processor_affinity *p =
+ (struct acpi_table_processor_affinity *)header;
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "SRAT Processor (id[0x%02x] eid[0x%02x]) in proximity domain %d %s\n",
+ p->apic_id, p->lsapic_eid,
+ p->proximity_domain,
+ p->flags.
+ enabled ? "enabled" : "disabled"));
+ }
+#endif /* ACPI_DEBUG_OUTPUT */
break;
case ACPI_SRAT_MEMORY_AFFINITY:
#ifdef ACPI_DEBUG_OUTPUT
- {
- struct acpi_table_memory_affinity *p =
- (struct acpi_table_memory_affinity*) header;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "SRAT Memory (0x%08x%08x length 0x%08x%08x type 0x%x) in proximity domain %d %s%s\n",
- p->base_addr_hi, p->base_addr_lo, p->length_hi, p->length_lo,
- p->memory_type, p->proximity_domain,
- p->flags.enabled ? "enabled" : "disabled",
- p->flags.hot_pluggable ? " hot-pluggable" : ""));
- }
-#endif /* ACPI_DEBUG_OUTPUT */
+ {
+ struct acpi_table_memory_affinity *p =
+ (struct acpi_table_memory_affinity *)header;
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "SRAT Memory (0x%08x%08x length 0x%08x%08x type 0x%x) in proximity domain %d %s%s\n",
+ p->base_addr_hi, p->base_addr_lo,
+ p->length_hi, p->length_lo,
+ p->memory_type, p->proximity_domain,
+ p->flags.
+ enabled ? "enabled" : "disabled",
+ p->flags.
+ hot_pluggable ? " hot-pluggable" :
+ ""));
+ }
+#endif /* ACPI_DEBUG_OUTPUT */
break;
default:
- printk(KERN_WARNING PREFIX "Found unsupported SRAT entry (type = 0x%x)\n",
- header->type);
+ printk(KERN_WARNING PREFIX
+ "Found unsupported SRAT entry (type = 0x%x)\n",
+ header->type);
break;
}
}
-
-static int __init
-acpi_parse_slit (unsigned long phys_addr, unsigned long size)
+static int __init acpi_parse_slit(unsigned long phys_addr, unsigned long size)
{
- struct acpi_table_slit *slit;
- u32 localities;
+ struct acpi_table_slit *slit;
+ u32 localities;
if (!phys_addr || !size)
return -EINVAL;
- slit = (struct acpi_table_slit *) __va(phys_addr);
+ slit = (struct acpi_table_slit *)__va(phys_addr);
/* downcast just for %llu vs %lu for i386/ia64 */
localities = (u32) slit->localities;
return 0;
}
-
static int __init
-acpi_parse_processor_affinity (
- acpi_table_entry_header *header,
- const unsigned long end)
+acpi_parse_processor_affinity(acpi_table_entry_header * header,
+ const unsigned long end)
{
struct acpi_table_processor_affinity *processor_affinity;
- processor_affinity = (struct acpi_table_processor_affinity*) header;
+ processor_affinity = (struct acpi_table_processor_affinity *)header;
if (!processor_affinity)
return -EINVAL;
return 0;
}
-
static int __init
-acpi_parse_memory_affinity (
- acpi_table_entry_header *header,
- const unsigned long end)
+acpi_parse_memory_affinity(acpi_table_entry_header * header,
+ const unsigned long end)
{
struct acpi_table_memory_affinity *memory_affinity;
- memory_affinity = (struct acpi_table_memory_affinity*) header;
+ memory_affinity = (struct acpi_table_memory_affinity *)header;
if (!memory_affinity)
return -EINVAL;
return 0;
}
-
-static int __init
-acpi_parse_srat (unsigned long phys_addr, unsigned long size)
+static int __init acpi_parse_srat(unsigned long phys_addr, unsigned long size)
{
- struct acpi_table_srat *srat;
+ struct acpi_table_srat *srat;
if (!phys_addr || !size)
return -EINVAL;
- srat = (struct acpi_table_srat *) __va(phys_addr);
+ srat = (struct acpi_table_srat *)__va(phys_addr);
return 0;
}
-
int __init
-acpi_table_parse_srat (
- enum acpi_srat_entry_id id,
- acpi_madt_entry_handler handler,
- unsigned int max_entries)
+acpi_table_parse_srat(enum acpi_srat_entry_id id,
+ acpi_madt_entry_handler handler, unsigned int max_entries)
{
- return acpi_table_parse_madt_family(ACPI_SRAT, sizeof(struct acpi_table_srat),
- id, handler, max_entries);
+ return acpi_table_parse_madt_family(ACPI_SRAT,
+ sizeof(struct acpi_table_srat), id,
+ handler, max_entries);
}
-
-int __init
-acpi_numa_init(void)
+int __init acpi_numa_init(void)
{
- int result;
+ int result;
/* SRAT: Static Resource Affinity Table */
result = acpi_table_parse(ACPI_SRAT, acpi_parse_srat);
result = acpi_table_parse_srat(ACPI_SRAT_PROCESSOR_AFFINITY,
acpi_parse_processor_affinity,
NR_CPUS);
- result = acpi_table_parse_srat(ACPI_SRAT_MEMORY_AFFINITY,
- acpi_parse_memory_affinity,
- NR_NODE_MEMBLKS); // IA64 specific
+ result = acpi_table_parse_srat(ACPI_SRAT_MEMORY_AFFINITY, acpi_parse_memory_affinity, NR_NODE_MEMBLKS); // IA64 specific
}
/* SLIT: System Locality Information Table */
return 0;
}
-int
-acpi_get_pxm(acpi_handle h)
+int acpi_get_pxm(acpi_handle h)
{
unsigned long pxm;
acpi_status status;
if (ACPI_SUCCESS(status))
return (int)pxm;
status = acpi_get_parent(handle, &phandle);
- } while(ACPI_SUCCESS(status));
+ } while (ACPI_SUCCESS(status));
return -1;
}
+
EXPORT_SYMBOL(acpi_get_pxm);