diff mbox series

[v15,11/13] remoteproc: mediatek: Report watchdog crash to all cores

Message ID 20230721024132.6548-12-tinghan.shen@mediatek.com (mailing list archive)
State New, archived
Headers show
Series Add support for MT8195 SCP 2nd core | expand

Commit Message

Tinghan Shen July 21, 2023, 2:41 a.m. UTC 
To ensure consistent behavior, the watchdog timeout handling of the
multi-core SCP should reset the whole SCP sub-system when watchdog
timeout. Triggering the rproc recovery flow on all instances will
ensure proper recovery of the SCP sub-system.

Signed-off-by: Tinghan Shen <tinghan.shen@mediatek.com>
---
 drivers/remoteproc/mtk_scp.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index fcd1dd9b3580..9ed2e18e36ba 100644
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c
@@ -68,8 +68,14 @@  EXPORT_SYMBOL_GPL(scp_put);
 
 static void scp_wdt_handler(struct mtk_scp *scp, u32 scp_to_host)
 {
+	struct mtk_scp_of_cluster *scp_cluster = scp->cluster;
+	struct mtk_scp *scp_node;
+
 	dev_err(scp->dev, "SCP watchdog timeout! 0x%x", scp_to_host);
-	rproc_report_crash(scp->rproc, RPROC_WATCHDOG);
+
+	/* report watchdog timeout to all cores */
+	list_for_each_entry(scp_node, &scp_cluster->mtk_scp_list, elem)
+		rproc_report_crash(scp_node->rproc, RPROC_WATCHDOG);
 }
 
 static void scp_init_ipi_handler(void *data, unsigned int len, void *priv)