1 files changed, 185 insertions, 2 deletions

diff --git a/include/asm-x86/topology.h b/include/asm-x86/topology.h
index b10fde9798ea..8af05a93f097 100644
--- a/include/asm-x86/topology.h
+++ b/include/asm-x86/topology.h
@@ -1,5 +1,188 @@
+/*
+ * Written by: Matthew Dobson, IBM Corporation
+ *
+ * Copyright (C) 2002, IBM Corp.
+ *
+ * All rights reserved.
+ *
+ * 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, GOOD TITLE or
+ * NON INFRINGEMENT.  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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Send feedback to <colpatch@us.ibm.com>
+ */
+#ifndef _ASM_X86_TOPOLOGY_H
+#define _ASM_X86_TOPOLOGY_H
+
+#ifdef CONFIG_NUMA
+#include <linux/cpumask.h>
+#include <asm/mpspec.h>
+
+/* Mappings between logical cpu number and node number */
 #ifdef CONFIG_X86_32
-# include "topology_32.h"
+extern int cpu_to_node_map[];
+
 #else
-# include "topology_64.h"
+DECLARE_PER_CPU(int, x86_cpu_to_node_map);
+extern int x86_cpu_to_node_map_init[];
+extern void *x86_cpu_to_node_map_early_ptr;
+/* Returns the number of the current Node. */
+#define numa_node_id()          (early_cpu_to_node(raw_smp_processor_id()))
+#endif
+
+extern cpumask_t node_to_cpumask_map[];
+
+#define NUMA_NO_NODE    (-1)
+
+/* Returns the number of the node containing CPU 'cpu' */
+#ifdef CONFIG_X86_32
+#define early_cpu_to_node(cpu)  cpu_to_node(cpu)
+static inline int cpu_to_node(int cpu)
+{
+        return cpu_to_node_map[cpu];
+}
+
+#else /* CONFIG_X86_64 */
+static inline int early_cpu_to_node(int cpu)
+{
+        int *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
+
+        if (cpu_to_node_map)
+                return cpu_to_node_map[cpu];
+        else if (per_cpu_offset(cpu))
+                return per_cpu(x86_cpu_to_node_map, cpu);
+        else
+                return NUMA_NO_NODE;
+}
+
+static inline int cpu_to_node(int cpu)
+{
+#ifdef CONFIG_DEBUG_PER_CPU_MAPS
+        if (x86_cpu_to_node_map_early_ptr) {
+                printk("KERN_NOTICE cpu_to_node(%d): usage too early!\n",
+                        (int)cpu);
+                dump_stack();
+                return ((int *)x86_cpu_to_node_map_early_ptr)[cpu];
+        }
+#endif
+        if (per_cpu_offset(cpu))
+                return per_cpu(x86_cpu_to_node_map, cpu);
+        else
+                return NUMA_NO_NODE;
+}
+#endif /* CONFIG_X86_64 */
+
+/*
+ * Returns the number of the node containing Node 'node'. This
+ * architecture is flat, so it is a pretty simple function!
+ */
+#define parent_node(node) (node)
+
+/* Returns a bitmask of CPUs on Node 'node'. */
+static inline cpumask_t node_to_cpumask(int node)
+{
+        return node_to_cpumask_map[node];
+}
+
+/* Returns the number of the first CPU on Node 'node'. */
+static inline int node_to_first_cpu(int node)
+{
+        cpumask_t mask = node_to_cpumask(node);
+
+        return first_cpu(mask);
+}
+
+#define pcibus_to_node(bus) __pcibus_to_node(bus)
+#define pcibus_to_cpumask(bus) __pcibus_to_cpumask(bus)
+
+#ifdef CONFIG_X86_32
+extern unsigned long node_start_pfn[];
+extern unsigned long node_end_pfn[];
+extern unsigned long node_remap_size[];
+#define node_has_online_mem(nid) (node_start_pfn[nid] != node_end_pfn[nid])
+
+# ifdef CONFIG_X86_HT
+#  define ENABLE_TOPO_DEFINES
+# endif
+
+# define SD_CACHE_NICE_TRIES    1
+# define SD_IDLE_IDX            1
+# define SD_NEWIDLE_IDX         2
+# define SD_FORKEXEC_IDX        0
+
+#else
+
+# ifdef CONFIG_SMP
+#  define ENABLE_TOPO_DEFINES
+# endif
+
+# define SD_CACHE_NICE_TRIES    2
+# define SD_IDLE_IDX            2
+# define SD_NEWIDLE_IDX         0
+# define SD_FORKEXEC_IDX        1
+
+#endif
+
+/* sched_domains SD_NODE_INIT for NUMAQ machines */
+#define SD_NODE_INIT (struct sched_domain) {            \
+        .span                   = CPU_MASK_NONE,        \
+        .parent                 = NULL,                 \
+        .child                  = NULL,                 \
+        .groups                 = NULL,                 \
+        .min_interval           = 8,                    \
+        .max_interval           = 32,                   \
+        .busy_factor            = 32,                   \
+        .imbalance_pct          = 125,                  \
+        .cache_nice_tries       = SD_CACHE_NICE_TRIES,  \
+        .busy_idx               = 3,                    \
+        .idle_idx               = SD_IDLE_IDX,          \
+        .newidle_idx            = SD_NEWIDLE_IDX,       \
+        .wake_idx               = 1,                    \
+        .forkexec_idx           = SD_FORKEXEC_IDX,      \
+        .flags                  = SD_LOAD_BALANCE       \
+                                | SD_BALANCE_EXEC       \
+                                | SD_BALANCE_FORK       \
+                                | SD_SERIALIZE          \
+                                | SD_WAKE_BALANCE,      \
+        .last_balance           = jiffies,              \
+        .balance_interval       = 1,                    \
+        .nr_balance_failed      = 0,                    \
+}
+
+#ifdef CONFIG_X86_64_ACPI_NUMA
+extern int __node_distance(int, int);
+#define node_distance(a, b) __node_distance(a, b)
+#endif
+
+#else /* CONFIG_NUMA */
+
+#include <asm-generic/topology.h>
+
+#endif
+
+extern cpumask_t cpu_coregroup_map(int cpu);
+
+#ifdef ENABLE_TOPO_DEFINES
+#define topology_physical_package_id(cpu)       (cpu_data(cpu).phys_proc_id)
+#define topology_core_id(cpu)                   (cpu_data(cpu).cpu_core_id)
+#define topology_core_siblings(cpu)             (per_cpu(cpu_core_map, cpu))
+#define topology_thread_siblings(cpu)           (per_cpu(cpu_sibling_map, cpu))
+#endif
+
+#ifdef CONFIG_SMP
+#define mc_capable()                    (boot_cpu_data.x86_max_cores > 1)
+#define smt_capable()                   (smp_num_siblings > 1)
+#endif
+
 #endif