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-rw-r--r--arch/powerpc/kernel/prom.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 330c65f..9dbed48 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -365,7 +365,6 @@ static int __init early_init_dt_scan_cpus(unsigned long node,
DBG("boot cpu: logical %d physical %d\n", found,
be32_to_cpu(intserv[found_thread]));
boot_cpuid = found;
- set_hard_smp_processor_id(found, be32_to_cpu(intserv[found_thread]));
/*
* PAPR defines "logical" PVR values for cpus that
@@ -403,7 +402,9 @@ static int __init early_init_dt_scan_cpus(unsigned long node,
cur_cpu_spec->cpu_features &= ~CPU_FTR_SMT;
else if (!dt_cpu_ftrs_in_use())
cur_cpu_spec->cpu_features |= CPU_FTR_SMT;
+ allocate_paca(boot_cpuid);
#endif
+ set_hard_smp_processor_id(found, be32_to_cpu(intserv[found_thread]));
return 0;
}
@@ -744,7 +745,7 @@ void __init early_init_devtree(void *params)
* FIXME .. and the initrd too? */
move_device_tree();
- allocate_pacas();
+ allocate_paca_ptrs();
DBG("Scanning CPUs ...\n");
@@ -874,5 +875,15 @@ EXPORT_SYMBOL(cpu_to_chip_id);
bool arch_match_cpu_phys_id(int cpu, u64 phys_id)
{
+#ifdef CONFIG_SMP
+ /*
+ * Early firmware scanning must use this rather than
+ * get_hard_smp_processor_id because we don't have pacas allocated
+ * until memory topology is discovered.
+ */
+ if (cpu_to_phys_id != NULL)
+ return (int)phys_id == cpu_to_phys_id[cpu];
+#endif
+
return (int)phys_id == get_hard_smp_processor_id(cpu);
}
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