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-rw-r--r--arch/powerpc/kernel/setup-common.c86
1 files changed, 47 insertions, 39 deletions
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 48f0a008b20..5e4d852f640 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -161,45 +161,44 @@ extern u32 cpu_temp_both(unsigned long cpu);
DEFINE_PER_CPU(unsigned int, cpu_pvr);
#endif
-static int show_cpuinfo(struct seq_file *m, void *v)
+static void show_cpuinfo_summary(struct seq_file *m)
{
- unsigned long cpu_id = (unsigned long)v - 1;
- unsigned int pvr;
- unsigned short maj;
- unsigned short min;
-
- if (cpu_id == NR_CPUS) {
- struct device_node *root;
- const char *model = NULL;
+ struct device_node *root;
+ const char *model = NULL;
#if defined(CONFIG_SMP) && defined(CONFIG_PPC32)
- unsigned long bogosum = 0;
- int i;
- for_each_online_cpu(i)
- bogosum += loops_per_jiffy;
- seq_printf(m, "total bogomips\t: %lu.%02lu\n",
- bogosum/(500000/HZ), bogosum/(5000/HZ) % 100);
+ unsigned long bogosum = 0;
+ int i;
+ for_each_online_cpu(i)
+ bogosum += loops_per_jiffy;
+ seq_printf(m, "total bogomips\t: %lu.%02lu\n",
+ bogosum/(500000/HZ), bogosum/(5000/HZ) % 100);
#endif /* CONFIG_SMP && CONFIG_PPC32 */
- seq_printf(m, "timebase\t: %lu\n", ppc_tb_freq);
- if (ppc_md.name)
- seq_printf(m, "platform\t: %s\n", ppc_md.name);
- root = of_find_node_by_path("/");
- if (root)
- model = of_get_property(root, "model", NULL);
- if (model)
- seq_printf(m, "model\t\t: %s\n", model);
- of_node_put(root);
-
- if (ppc_md.show_cpuinfo != NULL)
- ppc_md.show_cpuinfo(m);
+ seq_printf(m, "timebase\t: %lu\n", ppc_tb_freq);
+ if (ppc_md.name)
+ seq_printf(m, "platform\t: %s\n", ppc_md.name);
+ root = of_find_node_by_path("/");
+ if (root)
+ model = of_get_property(root, "model", NULL);
+ if (model)
+ seq_printf(m, "model\t\t: %s\n", model);
+ of_node_put(root);
+
+ if (ppc_md.show_cpuinfo != NULL)
+ ppc_md.show_cpuinfo(m);
#ifdef CONFIG_PPC32
- /* Display the amount of memory */
- seq_printf(m, "Memory\t\t: %d MB\n",
- (unsigned int)(total_memory / (1024 * 1024)));
+ /* Display the amount of memory */
+ seq_printf(m, "Memory\t\t: %d MB\n",
+ (unsigned int)(total_memory / (1024 * 1024)));
#endif
+}
- return 0;
- }
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
+ unsigned long cpu_id = (unsigned long)v - 1;
+ unsigned int pvr;
+ unsigned short maj;
+ unsigned short min;
/* We only show online cpus: disable preempt (overzealous, I
* knew) to prevent cpu going down. */
@@ -308,19 +307,28 @@ static int show_cpuinfo(struct seq_file *m, void *v)
#endif
preempt_enable();
+
+ /* If this is the last cpu, print the summary */
+ if (cpumask_next(cpu_id, cpu_online_mask) >= nr_cpu_ids)
+ show_cpuinfo_summary(m);
+
return 0;
}
static void *c_start(struct seq_file *m, loff_t *pos)
{
- unsigned long i = *pos;
-
- return i <= NR_CPUS ? (void *)(i + 1) : NULL;
+ if (*pos == 0) /* just in case, cpu 0 is not the first */
+ *pos = cpumask_first(cpu_online_mask);
+ else
+ *pos = cpumask_next(*pos - 1, cpu_online_mask);
+ if ((*pos) < nr_cpu_ids)
+ return (void *)(unsigned long)(*pos + 1);
+ return NULL;
}
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
- ++*pos;
+ (*pos)++;
return c_start(m, pos);
}
@@ -386,14 +394,14 @@ static void __init cpu_init_thread_core_maps(int tpc)
/**
* setup_cpu_maps - initialize the following cpu maps:
- * cpu_possible_map
- * cpu_present_map
+ * cpu_possible_mask
+ * cpu_present_mask
*
* Having the possible map set up early allows us to restrict allocations
* of things like irqstacks to num_possible_cpus() rather than NR_CPUS.
*
* We do not initialize the online map here; cpus set their own bits in
- * cpu_online_map as they come up.
+ * cpu_online_mask as they come up.
*
* This function is valid only for Open Firmware systems. finish_device_tree
* must be called before using this.