diff options
Diffstat (limited to 'drivers/hwtracing')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tmc-etr.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c index 4f000a03152e..bae47272de98 100644 --- a/drivers/hwtracing/coresight/coresight-tmc-etr.c +++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c @@ -946,10 +946,6 @@ static void tmc_sync_etr_buf(struct tmc_drvdata *drvdata) WARN_ON(!etr_buf->ops || !etr_buf->ops->sync); etr_buf->ops->sync(etr_buf, rrp, rwp); - - /* Insert barrier packets at the beginning, if there was an overflow */ - if (etr_buf->full) - tmc_etr_buf_insert_barrier_packet(etr_buf, etr_buf->offset); } static void __tmc_etr_enable_hw(struct tmc_drvdata *drvdata) @@ -1086,6 +1082,13 @@ static void tmc_etr_sync_sysfs_buf(struct tmc_drvdata *drvdata) drvdata->sysfs_buf = NULL; } else { tmc_sync_etr_buf(drvdata); + /* + * Insert barrier packets at the beginning, if there was + * an overflow. + */ + if (etr_buf->full) + tmc_etr_buf_insert_barrier_packet(etr_buf, + etr_buf->offset); } } @@ -1502,11 +1505,16 @@ tmc_update_etr_buffer(struct coresight_device *csdev, CS_LOCK(drvdata->base); spin_unlock_irqrestore(&drvdata->spinlock, flags); + lost = etr_buf->full; size = etr_buf->len; if (!etr_perf->snapshot && size > handle->size) { size = handle->size; lost = true; } + + /* Insert barrier packets at the beginning, if there was an overflow */ + if (lost) + tmc_etr_buf_insert_barrier_packet(etr_buf, etr_buf->offset); tmc_etr_sync_perf_buffer(etr_perf, size); /* @@ -1517,8 +1525,6 @@ tmc_update_etr_buffer(struct coresight_device *csdev, */ if (etr_perf->snapshot) handle->head += size; - - lost |= etr_buf->full; out: /* * Don't set the TRUNCATED flag in snapshot mode because 1) the |