* Populate cpu cache entries in sysfs for cpu cache info
*/
-#include <linux/config.h>
#include <linux/cpu.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <asm/numa.h>
#include <asm/cpu.h>
-#ifdef CONFIG_NUMA
-static struct node *sysfs_nodes;
-#endif
static struct ia64_cpu *sysfs_cpus;
int arch_register_cpu(int num)
{
- struct node *parent = NULL;
-
-#ifdef CONFIG_NUMA
- parent = &sysfs_nodes[cpu_to_node(num)];
-#endif /* CONFIG_NUMA */
-
#if defined (CONFIG_ACPI) && defined (CONFIG_HOTPLUG_CPU)
/*
- * If CPEI cannot be re-targetted, and this is
- * CPEI target, then dont create the control file
+ * If CPEI can be re-targetted or if this is not
+ * CPEI target, then it is hotpluggable
*/
- if (!can_cpei_retarget() && is_cpu_cpei_target(num))
- sysfs_cpus[num].cpu.no_control = 1;
+ if (can_cpei_retarget() || !is_cpu_cpei_target(num))
+ sysfs_cpus[num].cpu.hotpluggable = 1;
+ map_cpu_to_node(num, node_cpuid[num].nid);
#endif
- return register_cpu(&sysfs_cpus[num].cpu, num, parent);
+ return register_cpu(&sysfs_cpus[num].cpu, num);
}
#ifdef CONFIG_HOTPLUG_CPU
void arch_unregister_cpu(int num)
{
- struct node *parent = NULL;
-
-#ifdef CONFIG_NUMA
- int node = cpu_to_node(num);
- parent = &sysfs_nodes[node];
-#endif /* CONFIG_NUMA */
-
- return unregister_cpu(&sysfs_cpus[num].cpu, parent);
+ unregister_cpu(&sysfs_cpus[num].cpu);
+ unmap_cpu_from_node(num, cpu_to_node(num));
}
EXPORT_SYMBOL(arch_register_cpu);
EXPORT_SYMBOL(arch_unregister_cpu);
int i, err = 0;
#ifdef CONFIG_NUMA
- sysfs_nodes = kzalloc(sizeof(struct node) * MAX_NUMNODES, GFP_KERNEL);
- if (!sysfs_nodes) {
- err = -ENOMEM;
- goto out;
- }
-
/*
* MCD - Do we want to register all ONLINE nodes, or all POSSIBLE nodes?
*/
for_each_online_node(i) {
- if ((err = register_node(&sysfs_nodes[i], i, 0)))
+ if ((err = register_one_node(i)))
goto out;
}
#endif
sysfs_cpus = kzalloc(sizeof(struct ia64_cpu) * NR_CPUS, GFP_KERNEL);
- if (!sysfs_cpus) {
- err = -ENOMEM;
- goto out;
- }
+ if (!sysfs_cpus)
+ panic("kzalloc in topology_init failed - NR_CPUS too big?");
for_each_present_cpu(i) {
if((err = arch_register_cpu(i)))
num_shared = (int) csi.num_shared;
do {
- for_each_cpu(j)
+ for_each_possible_cpu(j)
if (cpu_data(cpu)->socket_id == cpu_data(j)->socket_id
&& cpu_data(j)->core_id == csi.log1_cid
&& cpu_data(j)->thread_id == csi.log1_tid)
* When a cpu is hot-plugged, do a check and initiate
* cache kobject if necessary
*/
-static int cache_cpu_callback(struct notifier_block *nfb,
+static int __cpuinit cache_cpu_callback(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
unsigned int cpu = (unsigned long)hcpu;
return NOTIFY_OK;
}
-static struct notifier_block cache_cpu_notifier =
+static struct notifier_block __cpuinitdata cache_cpu_notifier =
{
.notifier_call = cache_cpu_callback
};
(void *)(long)i);
}
- register_cpu_notifier(&cache_cpu_notifier);
+ register_hotcpu_notifier(&cache_cpu_notifier);
return 0;
}