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Diffstat (limited to 'arch/powerpc/kernel/setup_64.c')
-rw-r--r--arch/powerpc/kernel/setup_64.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 6da881b35dac..75fbaceb5c87 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -156,6 +156,15 @@ early_param("smt-enabled", early_smt_enabled);
#define check_smt_enabled()
#endif /* CONFIG_SMP */
+/** Fix up paca fields required for the boot cpu */
+static void fixup_boot_paca(void)
+{
+ /* The boot cpu is started */
+ get_paca()->cpu_start = 1;
+ /* Allow percpu accesses to work until we setup percpu data */
+ get_paca()->data_offset = 0;
+}
+
/*
* Early initialization entry point. This is called by head.S
* with MMU translation disabled. We rely on the "feature" of
@@ -177,6 +186,8 @@ early_param("smt-enabled", early_smt_enabled);
void __init early_setup(unsigned long dt_ptr)
{
+ static __initdata struct paca_struct boot_paca;
+
/* -------- printk is _NOT_ safe to use here ! ------- */
/* Identify CPU type */
@@ -185,6 +196,7 @@ void __init early_setup(unsigned long dt_ptr)
/* Assume we're on cpu 0 for now. Don't write to the paca yet! */
initialise_paca(&boot_paca, 0);
setup_paca(&boot_paca);
+ fixup_boot_paca();
/* Initialize lockdep early or else spinlocks will blow */
lockdep_init();
@@ -205,11 +217,7 @@ void __init early_setup(unsigned long dt_ptr)
/* Now we know the logical id of our boot cpu, setup the paca. */
setup_paca(&paca[boot_cpuid]);
-
- /* Fix up paca fields required for the boot cpu */
- get_paca()->cpu_start = 1;
- /* Allow percpu accesses to "work" until we setup percpu data */
- get_paca()->data_offset = 0;
+ fixup_boot_paca();
/* Probe the machine type */
probe_machine();