diff options
Diffstat (limited to 'arch/powerpc/platforms/powernv/opal.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c index 228751a0d8c6..da40d6bdb0e6 100644 --- a/arch/powerpc/platforms/powernv/opal.c +++ b/arch/powerpc/platforms/powernv/opal.c @@ -55,6 +55,7 @@ struct device_node *opal_node; static DEFINE_SPINLOCK(opal_write_lock); static struct atomic_notifier_head opal_msg_notifier_head[OPAL_MSG_TYPE_MAX]; static uint32_t opal_heartbeat; +static struct task_struct *kopald_tsk; static void opal_reinit_cores(void) { @@ -653,6 +654,7 @@ static void opal_i2c_create_devs(void) static int kopald(void *unused) { + unsigned long timeout = msecs_to_jiffies(opal_heartbeat) + 1; __be64 events; set_freezable(); @@ -660,12 +662,18 @@ static int kopald(void *unused) try_to_freeze(); opal_poll_events(&events); opal_handle_events(be64_to_cpu(events)); - msleep_interruptible(opal_heartbeat); + schedule_timeout_interruptible(timeout); } while (!kthread_should_stop()); return 0; } +void opal_wake_poller(void) +{ + if (kopald_tsk) + wake_up_process(kopald_tsk); +} + static void opal_init_heartbeat(void) { /* Old firwmware, we assume the HVC heartbeat is sufficient */ @@ -674,7 +682,7 @@ static void opal_init_heartbeat(void) opal_heartbeat = 0; if (opal_heartbeat) - kthread_run(kopald, NULL, "kopald"); + kopald_tsk = kthread_run(kopald, NULL, "kopald"); } static int __init opal_init(void) |