diff options
Diffstat (limited to 'arch/powerpc/platforms/powernv/smp.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/smp.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c index 65faf998fe2c..0062a43a2e0d 100644 --- a/arch/powerpc/platforms/powernv/smp.c +++ b/arch/powerpc/platforms/powernv/smp.c @@ -161,15 +161,17 @@ static void pnv_smp_cpu_kill_self(void) ppc64_runlatch_off(); power7_nap(1); ppc64_runlatch_on(); - if (!generic_check_cpu_restart(cpu)) { + + /* Reenable IRQs briefly to clear the IPI that woke us */ + local_irq_enable(); + local_irq_disable(); + mb(); + + if (cpu_core_split_required()) + continue; + + if (!generic_check_cpu_restart(cpu)) DBG("CPU%d Unexpected exit while offline !\n", cpu); - /* We may be getting an IPI, so we re-enable - * interrupts to process it, it will be ignored - * since we aren't online (hopefully) - */ - local_irq_enable(); - local_irq_disable(); - } } mtspr(SPRN_LPCR, mfspr(SPRN_LPCR) | LPCR_PECE1); DBG("CPU%d coming online...\n", cpu); |