Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / x86 / include / asm / topology.h

diff --git a/kernel/arch/x86/include/asm/topology.h b/kernel/arch/x86/include/asm/topology.h
new file mode 100644 (file)
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+++ b/kernel/arch/x86/include/asm/topology.h
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+/*
+ * 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_X86_32
+# ifdef CONFIG_X86_HT
+#  define ENABLE_TOPO_DEFINES
+# endif
+#else
+# ifdef CONFIG_SMP
+#  define ENABLE_TOPO_DEFINES
+# endif
+#endif
+
+/*
+ * to preserve the visibility of NUMA_NO_NODE definition,
+ * moved to there from here.  May be used independent of
+ * CONFIG_NUMA.
+ */
+#include <linux/numa.h>
+
+#ifdef CONFIG_NUMA
+#include <linux/cpumask.h>
+
+#include <asm/mpspec.h>
+
+/* Mappings between logical cpu number and node number */
+DECLARE_EARLY_PER_CPU(int, x86_cpu_to_node_map);
+
+#ifdef CONFIG_DEBUG_PER_CPU_MAPS
+/*
+ * override generic percpu implementation of cpu_to_node
+ */
+extern int __cpu_to_node(int cpu);
+#define cpu_to_node __cpu_to_node
+
+extern int early_cpu_to_node(int cpu);
+
+#else  /* !CONFIG_DEBUG_PER_CPU_MAPS */
+
+/* Same function but used if called before per_cpu areas are setup */
+static inline int early_cpu_to_node(int cpu)
+{
+       return early_per_cpu(x86_cpu_to_node_map, cpu);
+}
+
+#endif /* !CONFIG_DEBUG_PER_CPU_MAPS */
+
+/* Mappings between node number and cpus on that node. */
+extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES];
+
+#ifdef CONFIG_DEBUG_PER_CPU_MAPS
+extern const struct cpumask *cpumask_of_node(int node);
+#else
+/* Returns a pointer to the cpumask of CPUs on Node 'node'. */
+static inline const struct cpumask *cpumask_of_node(int node)
+{
+       return node_to_cpumask_map[node];
+}
+#endif
+
+extern void setup_node_to_cpumask_map(void);
+
+/*
+ * 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)
+
+#define pcibus_to_node(bus) __pcibus_to_node(bus)
+
+extern int __node_distance(int, int);
+#define node_distance(a, b) __node_distance(a, b)
+
+#else /* !CONFIG_NUMA */
+
+static inline int numa_node_id(void)
+{
+       return 0;
+}
+/*
+ * indicate override:
+ */
+#define numa_node_id numa_node_id
+
+static inline int early_cpu_to_node(int cpu)
+{
+       return 0;
+}
+
+static inline void setup_node_to_cpumask_map(void) { }
+
+#endif
+
+#include <asm-generic/topology.h>
+
+extern const struct cpumask *cpu_coregroup_mask(int cpu);
+
+#define topology_physical_package_id(cpu)      (cpu_data(cpu).phys_proc_id)
+#define topology_core_id(cpu)                  (cpu_data(cpu).cpu_core_id)
+
+#ifdef ENABLE_TOPO_DEFINES
+#define topology_core_cpumask(cpu)             (per_cpu(cpu_core_map, cpu))
+#define topology_thread_cpumask(cpu)           (per_cpu(cpu_sibling_map, cpu))
+#endif
+
+static inline void arch_fix_phys_package_id(int num, u32 slot)
+{
+}
+
+struct pci_bus;
+int x86_pci_root_bus_node(int bus);
+void x86_pci_root_bus_resources(int bus, struct list_head *resources);
+
+#endif /* _ASM_X86_TOPOLOGY_H */