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-rw-r--r--arch/arc/kernel/head.S14
-rw-r--r--arch/arc/kernel/smp.c6
2 files changed, 11 insertions, 9 deletions
diff --git a/arch/arc/kernel/head.S b/arch/arc/kernel/head.S
index 689dd867fdff..8b90d25a15cc 100644
--- a/arch/arc/kernel/head.S
+++ b/arch/arc/kernel/head.S
@@ -71,14 +71,14 @@ ENTRY(stext)
GET_CPU_ID r5
cmp r5, 0
mov.nz r0, r5
-#ifdef CONFIG_ARC_SMP_HALT_ON_RESET
- ; Non-Master can proceed as system would be booted sufficiently
- jnz first_lines_of_secondary
-#else
+ bz .Lmaster_proceed
+
; Non-Masters wait for Master to boot enough and bring them up
- jnz arc_platform_smp_wait_to_boot
-#endif
- ; Master falls thru
+ ; when they resume, tail-call to entry point
+ mov blink, @first_lines_of_secondary
+ j arc_platform_smp_wait_to_boot
+
+.Lmaster_proceed:
#endif
; Clear BSS before updating any globals
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index 88674d972c9d..44a0d21ed342 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -98,14 +98,16 @@ static void arc_default_smp_cpu_kick(int cpu, unsigned long pc)
void arc_platform_smp_wait_to_boot(int cpu)
{
+ /* for halt-on-reset, we've waited already */
+ if (IS_ENABLED(CONFIG_ARC_SMP_HALT_ON_RESET))
+ return;
+
while (wake_flag != cpu)
;
wake_flag = 0;
- __asm__ __volatile__("j @first_lines_of_secondary \n");
}
-
const char *arc_platform_smp_cpuinfo(void)
{
return plat_smp_ops.info ? : "";