Commit b0cdc6a4 authored by Tinghan Shen's avatar Tinghan Shen Committed by Mathieu Poirier
Browse files

remoteproc: mediatek: Report watchdog crash to all cores 



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: default avatarTinghan Shen <tinghan.shen@mediatek.com>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230901080935.14571-13-tinghan.shen@mediatek.com


Signed-off-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
parent 5d5cfce4

drivers/remoteproc/mtk_scp.c

+7 −1
Original line number Diff line number Diff line
@@ -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)