diff options
Diffstat (limited to 'drivers/hwtracing/coresight/coresight.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c index 6a0202b7384f..b8091bef21dc 100644 --- a/drivers/hwtracing/coresight/coresight.c +++ b/drivers/hwtracing/coresight/coresight.c @@ -53,6 +53,14 @@ static DEFINE_PER_CPU(struct list_head *, tracer_path); */ static struct list_head *stm_path; +/* + * When losing synchronisation a new barrier packet needs to be inserted at the + * beginning of the data collected in a buffer. That way the decoder knows that + * it needs to look for another sync sequence. + */ +const u32 barrier_pkt[5] = {0x7fffffff, 0x7fffffff, + 0x7fffffff, 0x7fffffff, 0x0}; + static int coresight_id_match(struct device *dev, void *data) { int trace_id, i_trace_id; |