From 1877f54f75ad16549861ae92a708bd04c23f2a72 Mon Sep 17 00:00:00 2001 From: Siddharth Gupta Date: Wed, 8 Apr 2020 16:36:39 -0700 Subject: [PATCH] remoteproc: sysmon: Add notifications for events Add notification for other stages of remoteproc boot and shutdown. This includes adding callback functions for the prepare and unprepare events, and fleshing out the callback function for start. Acked-by: Mathieu Poirier Reviewed-by: Bjorn Andersson Signed-off-by: Siddharth Gupta Link: https://lore.kernel.org/r/1586389003-26675-3-git-send-email-sidgup@codeaurora.org Signed-off-by: Bjorn Andersson --- drivers/remoteproc/qcom_sysmon.c | 37 ++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/drivers/remoteproc/qcom_sysmon.c b/drivers/remoteproc/qcom_sysmon.c index 13660506b9b0..851664e1aabe 100644 --- a/drivers/remoteproc/qcom_sysmon.c +++ b/drivers/remoteproc/qcom_sysmon.c @@ -439,8 +439,31 @@ static const struct qmi_ops ssctl_ops = { .del_server = ssctl_del_server, }; +static int sysmon_prepare(struct rproc_subdev *subdev) +{ + struct qcom_sysmon *sysmon = container_of(subdev, struct qcom_sysmon, + subdev); + struct sysmon_event event = { + .subsys_name = sysmon->name, + .ssr_event = SSCTL_SSR_EVENT_BEFORE_POWERUP + }; + + blocking_notifier_call_chain(&sysmon_notifiers, 0, (void *)&event); + + return 0; +} + static int sysmon_start(struct rproc_subdev *subdev) { + struct qcom_sysmon *sysmon = container_of(subdev, struct qcom_sysmon, + subdev); + struct sysmon_event event = { + .subsys_name = sysmon->name, + .ssr_event = SSCTL_SSR_EVENT_AFTER_POWERUP + }; + + blocking_notifier_call_chain(&sysmon_notifiers, 0, (void *)&event); + return 0; } @@ -464,6 +487,18 @@ static void sysmon_stop(struct rproc_subdev *subdev, bool crashed) sysmon_request_shutdown(sysmon); } +static void sysmon_unprepare(struct rproc_subdev *subdev) +{ + struct qcom_sysmon *sysmon = container_of(subdev, struct qcom_sysmon, + subdev); + struct sysmon_event event = { + .subsys_name = sysmon->name, + .ssr_event = SSCTL_SSR_EVENT_AFTER_SHUTDOWN + }; + + blocking_notifier_call_chain(&sysmon_notifiers, 0, (void *)&event); +} + /** * sysmon_notify() - notify sysmon target of another's SSR * @nb: notifier_block associated with sysmon instance @@ -563,8 +598,10 @@ struct qcom_sysmon *qcom_add_sysmon_subdev(struct rproc *rproc, qmi_add_lookup(&sysmon->qmi, 43, 0, 0); + sysmon->subdev.prepare = sysmon_prepare; sysmon->subdev.start = sysmon_start; sysmon->subdev.stop = sysmon_stop; + sysmon->subdev.unprepare = sysmon_unprepare; rproc_add_subdev(rproc, &sysmon->subdev); -- 2.17.1