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ASoC: wm_adsp: Shutdown any compressed streams on DSP watchdog timeout 

If a watchdog timeout is received from the DSP it is safe to assume the
DSP is not functioning anymore and as such any active compressed streams
should be put into an error state.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Charles Keepax 2019-03-19 11:52:07 +00:00 committed by Mark Brown
parent a2225a6d15
commit a2bcbc1b9a
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 22 additions and 0 deletions
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21
sound/soc/codecs/wm_adsp.c
View File

@ -2905,6 +2905,8 @@ int wm_adsp2_event(struct snd_soc_dapm_widget *w,
if (wm_adsp_fw[dsp->fw].num_caps != 0)
wm_adsp_buffer_free(dsp);
dsp->fatal_error = false;
mutex_unlock(&dsp->pwr_lock);
adsp_dbg(dsp, "Execution stopped\n");
@ -3000,6 +3002,9 @@ static int wm_adsp_compr_attach(struct wm_adsp_compr *compr)
{
struct wm_adsp_compr_buf *buf = NULL, *tmp;
if (compr->dsp->fatal_error)
return -EINVAL;
list_for_each_entry(tmp, &compr->dsp->buffer_list, list) {
if (!tmp->name || !strcmp(compr->name, tmp->name)) {
buf = tmp;
@ -3916,6 +3921,21 @@ int wm_adsp2_lock(struct wm_adsp *dsp, unsigned int lock_regions)
}
EXPORT_SYMBOL_GPL(wm_adsp2_lock);
static void wm_adsp_fatal_error(struct wm_adsp *dsp)
{
struct wm_adsp_compr *compr;
dsp->fatal_error = true;
list_for_each_entry(compr, &dsp->compr_list, list) {
if (compr->stream) {
snd_compr_stop_error(compr->stream,
SNDRV_PCM_STATE_XRUN);
snd_compr_fragment_elapsed(compr->stream);
}
}
}
irqreturn_t wm_adsp2_bus_error(struct wm_adsp *dsp)
{
unsigned int val;
@ -3934,6 +3954,7 @@ irqreturn_t wm_adsp2_bus_error(struct wm_adsp *dsp)
if (val & ADSP2_WDT_TIMEOUT_STS_MASK) {
adsp_err(dsp, "watchdog timeout error\n");
wm_adsp_stop_watchdog(dsp);
wm_adsp_fatal_error(dsp);
}
if (val & (ADSP2_SLAVE_ERR_MASK | ADSP2_REGION_LOCK_ERR_MASK)) {

1
sound/soc/codecs/wm_adsp.h
View File

@ -85,6 +85,7 @@ struct wm_adsp {
bool preloaded;
bool booted;
bool running;
bool fatal_error;
struct list_head ctl_list;