diff options
| -rw-r--r-- | sys/arm/arm/mp_machdep.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/sys/arm/arm/mp_machdep.c b/sys/arm/arm/mp_machdep.c index c0f723c..88104f0 100644 --- a/sys/arm/arm/mp_machdep.c +++ b/sys/arm/arm/mp_machdep.c @@ -185,8 +185,11 @@ init_secondary(int cpu) atomic_add_rel_32(&mp_naps, 1); /* Spin until the BSP releases the APs */ - while (!aps_ready) - ; + while (!atomic_load_acq_int(&aps_ready)) { +#if __ARM_ARCH >= 7 + __asm __volatile("wfe"); +#endif + } /* Initialize curthread */ KASSERT(PCPU_GET(idlethread) != NULL, ("no idle thread")); @@ -353,6 +356,10 @@ release_aps(void *dummy __unused) arm_unmask_irq(i); } atomic_store_rel_int(&aps_ready, 1); + /* Wake the other threads up */ +#if __ARM_ARCH >= 7 + armv7_sev(); +#endif printf("Release APs\n"); |
