numa.c (ef34e0efa22a867f8db16feb79fba9964cfbe253) numa.c (5a1ea4774ddc2c6bc3ba1415880091eccf1a901e)
1/*
2 * pSeries NUMA support
3 *
4 * Copyright (C) 2002 Anton Blanchard <anton@au.ibm.com>, IBM
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version

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1062u64 memory_hotplug_max(void)
1063{
1064 return max(hot_add_drconf_memory_max(), memblock_end_of_DRAM());
1065}
1066#endif /* CONFIG_MEMORY_HOTPLUG */
1067
1068/* Virtual Processor Home Node (VPHN) support */
1069#ifdef CONFIG_PPC_SPLPAR
1/*
2 * pSeries NUMA support
3 *
4 * Copyright (C) 2002 Anton Blanchard <anton@au.ibm.com>, IBM
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version

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1062u64 memory_hotplug_max(void)
1063{
1064 return max(hot_add_drconf_memory_max(), memblock_end_of_DRAM());
1065}
1066#endif /* CONFIG_MEMORY_HOTPLUG */
1067
1068/* Virtual Processor Home Node (VPHN) support */
1069#ifdef CONFIG_PPC_SPLPAR
1070
1071#include "book3s64/vphn.h"
1072
1073struct topology_update_data {
1074 struct topology_update_data *next;
1075 unsigned int cpu;
1076 int old_nid;
1077 int new_nid;
1078};
1079
1080#define TOPOLOGY_DEF_TIMER_SECS 60
1081
1082static u8 vphn_cpu_change_counts[NR_CPUS][MAX_DISTANCE_REF_POINTS];
1083static cpumask_t cpu_associativity_changes_mask;
1084static int vphn_enabled;
1085static int prrn_enabled;
1086static void reset_topology_timer(void);
1087static int topology_timer_secs = 1;
1088static int topology_inited;
1089
1070struct topology_update_data {
1071 struct topology_update_data *next;
1072 unsigned int cpu;
1073 int old_nid;
1074 int new_nid;
1075};
1076
1077#define TOPOLOGY_DEF_TIMER_SECS 60
1078
1079static u8 vphn_cpu_change_counts[NR_CPUS][MAX_DISTANCE_REF_POINTS];
1080static cpumask_t cpu_associativity_changes_mask;
1081static int vphn_enabled;
1082static int prrn_enabled;
1083static void reset_topology_timer(void);
1084static int topology_timer_secs = 1;
1085static int topology_inited;
1086
1090static long hcall_vphn(unsigned long cpu, u64 flags, __be32 *associativity)
1091{
1092 long rc;
1093 long retbuf[PLPAR_HCALL9_BUFSIZE] = {0};
1094
1095 rc = plpar_hcall9(H_HOME_NODE_ASSOCIATIVITY, retbuf, flags, cpu);
1096 vphn_unpack_associativity(retbuf, associativity);
1097
1098 return rc;
1099}
1100
1101/*
1102 * Change polling interval for associativity changes.
1103 */
1104int timed_topology_update(int nsecs)
1105{
1106 if (vphn_enabled) {
1107 if (nsecs > 0)
1108 topology_timer_secs = nsecs;

--- 526 unchanged lines hidden --- 		1087/*
1088 * Change polling interval for associativity changes.
1089 */
1090int timed_topology_update(int nsecs)
1091{
1092 if (vphn_enabled) {
1093 if (nsecs > 0)
1094 topology_timer_secs = nsecs;

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