ARM: 8739/1: NOMMU: Setup VBAR/Hivecs for secondaries cores
With switch to dynamic exception base address setting, VBAR/Hivecs
set only for boot CPU, but secondaries stay unaware of that. That
might lead to weird effects when trying up to bring up secondaries.
Fixes: ad475117d201 ("ARM: 8649/2: nommu: remove Hivecs configuration is asm")
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 1f54e4e..4966677 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -88,6 +88,7 @@
#else /* CONFIG_MMU */
#ifndef __ASSEMBLY__
+extern unsigned long setup_vectors_base(void);
extern unsigned long vectors_base;
#define VECTORS_BASE vectors_base
#endif
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index b4fbf00..2da0879 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -379,6 +379,9 @@ asmlinkage void secondary_start_kernel(void)
cpu_init();
+#ifndef CONFIG_MMU
+ setup_vectors_base();
+#endif
pr_debug("CPU%u: Booted secondary processor\n", cpu);
preempt_disable();
diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c
index e437081..7c08796 100644
--- a/arch/arm/mm/nommu.c
+++ b/arch/arm/mm/nommu.c
@@ -31,7 +31,7 @@ struct mpu_rgn_info mpu_rgn_info;
#ifdef CONFIG_CPU_CP15
#ifdef CONFIG_CPU_HIGH_VECTOR
-static unsigned long __init setup_vectors_base(void)
+unsigned long setup_vectors_base(void)
{
unsigned long reg = get_cr();
@@ -57,7 +57,7 @@ static inline bool security_extensions_enabled(void)
return 0;
}
-static unsigned long __init setup_vectors_base(void)
+unsigned long setup_vectors_base(void)
{
unsigned long base = 0, reg = get_cr();