diff options
Diffstat (limited to 'drivers/remoteproc')
| -rw-r--r-- | drivers/remoteproc/qcom_sysmon.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/remoteproc/qcom_sysmon.c b/drivers/remoteproc/qcom_sysmon.c index 851664e1aabe..8d8996d714f0 100644 --- a/drivers/remoteproc/qcom_sysmon.c +++ b/drivers/remoteproc/qcom_sysmon.c @@ -453,10 +453,20 @@ static int sysmon_prepare(struct rproc_subdev *subdev) return 0; } +/** + * sysmon_start() - start callback for the sysmon remoteproc subdevice + * @subdev: instance of the sysmon subdevice + * + * Inform all the listners of sysmon notifications that the rproc associated + * to @subdev has booted up. The rproc that booted up also needs to know + * which rprocs are already up and running, so send start notifications + * on behalf of all the online rprocs. + */ static int sysmon_start(struct rproc_subdev *subdev) { struct qcom_sysmon *sysmon = container_of(subdev, struct qcom_sysmon, subdev); + struct qcom_sysmon *target; struct sysmon_event event = { .subsys_name = sysmon->name, .ssr_event = SSCTL_SSR_EVENT_AFTER_POWERUP @@ -464,6 +474,21 @@ static int sysmon_start(struct rproc_subdev *subdev) blocking_notifier_call_chain(&sysmon_notifiers, 0, (void *)&event); + mutex_lock(&sysmon_lock); + list_for_each_entry(target, &sysmon_list, node) { + if (target == sysmon || + target->rproc->state != RPROC_RUNNING) + continue; + + event.subsys_name = target->name; + + if (sysmon->ssctl_version == 2) + ssctl_send_event(sysmon, &event); + else if (sysmon->ept) + sysmon_send_event(sysmon, &event); + } + mutex_unlock(&sysmon_lock); + return 0; } |