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    Subject[PATCH 3/6] remoteproc: sysmon: Inform current rproc about all active rprocs
    Date
    A remoteproc that has just recovered from a crash will not be aware of the
    state of other remoteprocs. Send sysmon notifications on behalf of all the
    active/online remoteprocs to the one that just booted up.

    Signed-off-by: Siddharth Gupta <sidgup@codeaurora.org>
    ---
    drivers/remoteproc/qcom_sysmon.c | 12 ++++++++++++
    1 file changed, 12 insertions(+)

    diff --git a/drivers/remoteproc/qcom_sysmon.c b/drivers/remoteproc/qcom_sysmon.c
    index 851664e..d0d59d5 100644
    --- a/drivers/remoteproc/qcom_sysmon.c
    +++ b/drivers/remoteproc/qcom_sysmon.c
    @@ -457,6 +457,7 @@ 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 +465,17 @@ 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;
    + ssctl_send_event(sysmon, &event);
    + }
    + mutex_unlock(&sysmon_lock);
    +
    return 0;
    }

    --
    Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
    a Linux Foundation Collaborative Project
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