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Subject[PATCH 07/14] [POWERPC] Populate cpu_enabled_map
Date
Populate the cpu_enabled_map correctly.

Note that this patch does not actually make any decisions based
on the contents of the map.

However, as the map is presented via sysfs in:

/sys/devices/system/cpu/

It should be populated correctly.

Signed-off-by: Alex Chiang <achiang@hp.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
arch/powerpc/kernel/setup-common.c | 1 +
arch/powerpc/platforms/powermac/smp.c | 1 +
arch/powerpc/platforms/pseries/hotplug-cpu.c | 2 ++
3 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index db540ea..a4c894a 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -413,6 +413,7 @@ void __init smp_setup_cpu_maps(void)
DBG(" thread %d -> cpu %d (hard id %d)\n",
j, cpu, intserv[j]);
cpu_set(cpu, cpu_present_map);
+ cpu_set(cpu, cpu_enabled_map);
set_hard_smp_processor_id(cpu, intserv[j]);
cpu_set(cpu, cpu_possible_map);
cpu++;
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index cb2d894..a74dada 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -317,6 +317,7 @@ static int __init smp_psurge_probe(void)
ncpus = NR_CPUS;
for (i = 1; i < ncpus ; ++i) {
cpu_set(i, cpu_present_map);
+ cpu_set(i, cpu_enabled_map);
set_hard_smp_processor_id(i, i);
}

diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index 1f03248..e738b07 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -186,6 +186,7 @@ static int pseries_add_processor(struct device_node *np)
for_each_cpu_mask(cpu, tmp) {
BUG_ON(cpu_isset(cpu, cpu_present_map));
cpu_set(cpu, cpu_present_map);
+ cpu_set(cpu, cpu_enabled_map);
set_hard_smp_processor_id(cpu, *intserv++);
}
err = 0;
@@ -218,6 +219,7 @@ static void pseries_remove_processor(struct device_node *np)
continue;
BUG_ON(cpu_online(cpu));
cpu_clear(cpu, cpu_present_map);
+ cpu_clear(cpu, cpu_enabled_map);
set_hard_smp_processor_id(cpu, -1);
break;
}


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