diff options
| -rw-r--r-- | drivers/remoteproc/qcom_common.c | 44 | ||||
| -rw-r--r-- | include/linux/remoteproc/qcom_rproc.h | 16 |
2 files changed, 59 insertions, 1 deletions
diff --git a/drivers/remoteproc/qcom_common.c b/drivers/remoteproc/qcom_common.c index 48b399af9c83..2f45f0c79914 100644 --- a/drivers/remoteproc/qcom_common.c +++ b/drivers/remoteproc/qcom_common.c @@ -265,6 +265,44 @@ int qcom_unregister_ssr_notifier(void *notify, struct notifier_block *nb) } EXPORT_SYMBOL_GPL(qcom_unregister_ssr_notifier); +static int ssr_notify_prepare(struct rproc_subdev *subdev) +{ + struct qcom_rproc_ssr *ssr = to_ssr_subdev(subdev); + struct qcom_ssr_notify_data data = { + .name = ssr->info->name, + .crashed = false, + }; + + srcu_notifier_call_chain(&ssr->info->notifier_list, + QCOM_SSR_BEFORE_POWERUP, &data); + return 0; +} + +static int ssr_notify_start(struct rproc_subdev *subdev) +{ + struct qcom_rproc_ssr *ssr = to_ssr_subdev(subdev); + struct qcom_ssr_notify_data data = { + .name = ssr->info->name, + .crashed = false, + }; + + srcu_notifier_call_chain(&ssr->info->notifier_list, + QCOM_SSR_AFTER_POWERUP, &data); + return 0; +} + +static void ssr_notify_stop(struct rproc_subdev *subdev, bool crashed) +{ + struct qcom_rproc_ssr *ssr = to_ssr_subdev(subdev); + struct qcom_ssr_notify_data data = { + .name = ssr->info->name, + .crashed = crashed, + }; + + srcu_notifier_call_chain(&ssr->info->notifier_list, + QCOM_SSR_BEFORE_SHUTDOWN, &data); +} + static void ssr_notify_unprepare(struct rproc_subdev *subdev) { struct qcom_rproc_ssr *ssr = to_ssr_subdev(subdev); @@ -273,7 +311,8 @@ static void ssr_notify_unprepare(struct rproc_subdev *subdev) .crashed = false, }; - srcu_notifier_call_chain(&ssr->info->notifier_list, 0, &data); + srcu_notifier_call_chain(&ssr->info->notifier_list, + QCOM_SSR_AFTER_SHUTDOWN, &data); } /** @@ -298,6 +337,9 @@ void qcom_add_ssr_subdev(struct rproc *rproc, struct qcom_rproc_ssr *ssr, } ssr->info = info; + ssr->subdev.prepare = ssr_notify_prepare; + ssr->subdev.start = ssr_notify_start; + ssr->subdev.stop = ssr_notify_stop; ssr->subdev.unprepare = ssr_notify_unprepare; rproc_add_subdev(rproc, &ssr->subdev); diff --git a/include/linux/remoteproc/qcom_rproc.h b/include/linux/remoteproc/qcom_rproc.h index 2a1d6d0249d9..647051662174 100644 --- a/include/linux/remoteproc/qcom_rproc.h +++ b/include/linux/remoteproc/qcom_rproc.h @@ -5,6 +5,22 @@ struct notifier_block; #if IS_ENABLED(CONFIG_QCOM_RPROC_COMMON) +/** + * enum qcom_ssr_notify_type - Startup/Shutdown events related to a remoteproc + * processor. + * + * @QCOM_SSR_BEFORE_POWERUP: Remoteproc about to start (prepare stage) + * @QCOM_SSR_AFTER_POWERUP: Remoteproc is running (start stage) + * @QCOM_SSR_BEFORE_SHUTDOWN: Remoteproc crashed or shutting down (stop stage) + * @QCOM_SSR_AFTER_SHUTDOWN: Remoteproc is down (unprepare stage) + */ +enum qcom_ssr_notify_type { + QCOM_SSR_BEFORE_POWERUP, + QCOM_SSR_AFTER_POWERUP, + QCOM_SSR_BEFORE_SHUTDOWN, + QCOM_SSR_AFTER_SHUTDOWN, +}; + struct qcom_ssr_notify_data { const char *name; bool crashed; |