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| author | Tinghan Shen <tinghan.shen@mediatek.com> | 2023-09-01 16:09:33 +0800 |
|---|---|---|
| committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2023-09-13 11:46:24 -0600 |
| commit | b0cdc6a4df7a8e0bcddd7a302229a6ae9a3e044e (patch) | |
| tree | b2b9072b1212291b8477cc7d92be091d919f8eca /drivers/remoteproc/mtk_scp.c | |
| parent | 5d5cfce48069df97ae83d001187f69d63b87242f (diff) | |
| download | lwn-b0cdc6a4df7a8e0bcddd7a302229a6ae9a3e044e.tar.gz lwn-b0cdc6a4df7a8e0bcddd7a302229a6ae9a3e044e.zip | |
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: Tinghan Shen <tinghan.shen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230901080935.14571-13-tinghan.shen@mediatek.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'drivers/remoteproc/mtk_scp.c')
| -rw-r--r-- | drivers/remoteproc/mtk_scp.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c index 147f56d60096..a28c9b017f3a 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) |