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@@ -1,5 +1,144 @@
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+/*
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+ * Written by: Matthew Dobson, IBM Corporation
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+ *
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+ * Copyright (C) 2002, IBM Corp.
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+ *
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+ * All rights reserved.
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful, but
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+ * WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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+ * NON INFRINGEMENT. See the GNU General Public License for more
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+ * details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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+ *
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+ * Send feedback to <colpatch@us.ibm.com>
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+ */
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+#ifndef _ASM_X86_TOPOLOGY_H
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+#define _ASM_X86_TOPOLOGY_H
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+
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+#ifdef CONFIG_NUMA
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+#include <linux/cpumask.h>
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+#include <asm/mpspec.h>
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+
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+/* Mappings between logical cpu number and node number */
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+extern int cpu_to_node_map[];
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+extern cpumask_t node_to_cpumask_map[];
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+
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+/* Returns the number of the node containing CPU 'cpu' */
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+static inline int cpu_to_node(int cpu)
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+{
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+ return cpu_to_node_map[cpu];
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+}
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+
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+/*
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+ * Returns the number of the node containing Node 'node'. This
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+ * architecture is flat, so it is a pretty simple function!
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+ */
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+#define parent_node(node) (node)
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+
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+/* Returns a bitmask of CPUs on Node 'node'. */
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+static inline cpumask_t node_to_cpumask(int node)
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+{
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+ return node_to_cpumask_map[node];
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+}
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+
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+/* Returns the number of the first CPU on Node 'node'. */
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+static inline int node_to_first_cpu(int node)
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+{
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+ cpumask_t mask = node_to_cpumask(node);
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+
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+ return first_cpu(mask);
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+}
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+
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+#define pcibus_to_node(bus) __pcibus_to_node(bus)
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+#define pcibus_to_cpumask(bus) __pcibus_to_cpumask(bus)
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+
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#ifdef CONFIG_X86_32
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-# include "topology_32.h"
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+extern unsigned long node_start_pfn[];
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+extern unsigned long node_end_pfn[];
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+extern unsigned long node_remap_size[];
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+#define node_has_online_mem(nid) (node_start_pfn[nid] != node_end_pfn[nid])
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+
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+# ifdef CONFIG_X86_HT
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+# define ENABLE_TOPO_DEFINES
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+# endif
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+
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+# define SD_CACHE_NICE_TRIES 1
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+# define SD_IDLE_IDX 1
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+# define SD_NEWIDLE_IDX 2
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+# define SD_FORKEXEC_IDX 0
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+
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#else
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-# include "topology_64.h"
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+
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+# ifdef CONFIG_SMP
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+# define ENABLE_TOPO_DEFINES
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+# endif
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+
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+# define SD_CACHE_NICE_TRIES 2
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+# define SD_IDLE_IDX 2
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+# define SD_NEWIDLE_IDX 0
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+# define SD_FORKEXEC_IDX 1
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+
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+#endif
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+
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+/* sched_domains SD_NODE_INIT for NUMAQ machines */
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+#define SD_NODE_INIT (struct sched_domain) { \
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+ .span = CPU_MASK_NONE, \
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+ .parent = NULL, \
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+ .child = NULL, \
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+ .groups = NULL, \
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+ .min_interval = 8, \
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+ .max_interval = 32, \
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+ .busy_factor = 32, \
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+ .imbalance_pct = 125, \
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+ .cache_nice_tries = SD_CACHE_NICE_TRIES, \
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+ .busy_idx = 3, \
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+ .idle_idx = SD_IDLE_IDX, \
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+ .newidle_idx = SD_NEWIDLE_IDX, \
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+ .wake_idx = 1, \
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+ .forkexec_idx = SD_FORKEXEC_IDX, \
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+ .flags = SD_LOAD_BALANCE \
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+ | SD_BALANCE_EXEC \
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+ | SD_BALANCE_FORK \
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+ | SD_SERIALIZE \
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+ | SD_WAKE_BALANCE, \
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+ .last_balance = jiffies, \
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+ .balance_interval = 1, \
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+ .nr_balance_failed = 0, \
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+}
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+
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+#ifdef CONFIG_X86_64_ACPI_NUMA
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+extern int __node_distance(int, int);
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+#define node_distance(a, b) __node_distance(a, b)
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+#endif
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+
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+#else /* CONFIG_NUMA */
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+
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+#include <asm-generic/topology.h>
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+
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+#endif
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+
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+extern cpumask_t cpu_coregroup_map(int cpu);
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+
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+#ifdef ENABLE_TOPO_DEFINES
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+#define topology_physical_package_id(cpu) (cpu_data(cpu).phys_proc_id)
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+#define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id)
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+#define topology_core_siblings(cpu) (per_cpu(cpu_core_map, cpu))
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+#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu))
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+#endif
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+
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+#ifdef CONFIG_SMP
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+#define mc_capable() (boot_cpu_data.x86_max_cores > 1)
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+#define smt_capable() (smp_num_siblings > 1)
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+#endif
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+
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#endif
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Thomas Gleixner