From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Siddharth Gupta Subject: [PATCH 3/6] remoteproc: sysmon: Inform current rproc about all active rprocs Date: Wed, 19 Feb 2020 18:57:42 -0800 Message-Id: <1582167465-2549-4-git-send-email-sidgup@codeaurora.org> In-Reply-To: <1582167465-2549-1-git-send-email-sidgup@codeaurora.org> References: <1582167465-2549-1-git-send-email-sidgup@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org To: agross@kernel.org, bjorn.andersson@linaro.org, ohad@wizery.com Cc: Siddharth Gupta , linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, tsoni@codeaurora.org, psodagud@codeaurora.org, rishabhb@codeaurora.org List-ID: 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 --- 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