diff options
Diffstat (limited to 'drivers/remoteproc/qcom_q6v5.c')
| -rw-r--r-- | drivers/remoteproc/qcom_q6v5.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/remoteproc/qcom_q6v5.c b/drivers/remoteproc/qcom_q6v5.c index cb0f4a0be032..111a442c993c 100644 --- a/drivers/remoteproc/qcom_q6v5.c +++ b/drivers/remoteproc/qcom_q6v5.c @@ -15,6 +15,8 @@ #include <linux/remoteproc.h> #include "qcom_q6v5.h" +#define Q6V5_PANIC_DELAY_MS 200 + /** * qcom_q6v5_prepare() - reinitialize the qcom_q6v5 context before start * @q6v5: reference to qcom_q6v5 context to be reinitialized @@ -163,6 +165,24 @@ int qcom_q6v5_request_stop(struct qcom_q6v5 *q6v5) EXPORT_SYMBOL_GPL(qcom_q6v5_request_stop); /** + * qcom_q6v5_panic() - panic handler to invoke a stop on the remote + * @q6v5: reference to qcom_q6v5 context + * + * Set the stop bit and sleep in order to allow the remote processor to flush + * its caches etc for post mortem debugging. + * + * Return: 200ms + */ +unsigned long qcom_q6v5_panic(struct qcom_q6v5 *q6v5) +{ + qcom_smem_state_update_bits(q6v5->state, + BIT(q6v5->stop_bit), BIT(q6v5->stop_bit)); + + return Q6V5_PANIC_DELAY_MS; +} +EXPORT_SYMBOL_GPL(qcom_q6v5_panic); + +/** * qcom_q6v5_init() - initializer of the q6v5 common struct * @q6v5: handle to be initialized * @pdev: platform_device reference for acquiring resources |