diff options
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-tmc-etf.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tmc-etf.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc-etf.c b/drivers/hwtracing/coresight/coresight-tmc-etf.c index e3b9fb82eb8d..2e0fb5b9372c 100644 --- a/drivers/hwtracing/coresight/coresight-tmc-etf.c +++ b/drivers/hwtracing/coresight/coresight-tmc-etf.c @@ -369,6 +369,7 @@ static void tmc_update_etf_buffer(struct coresight_device *csdev, struct perf_output_handle *handle, void *sink_config) { + bool lost = false; int i, cur; u32 *buf_ptr; u32 read_ptr, write_ptr; @@ -397,7 +398,7 @@ static void tmc_update_etf_buffer(struct coresight_device *csdev, */ status = readl_relaxed(drvdata->base + TMC_STS); if (status & TMC_STS_FULL) { - perf_aux_output_flag(handle, PERF_AUX_FLAG_TRUNCATED); + lost = true; to_read = drvdata->size; } else { to_read = CIRC_CNT(write_ptr, read_ptr, drvdata->size); @@ -442,9 +443,12 @@ static void tmc_update_etf_buffer(struct coresight_device *csdev, read_ptr -= drvdata->size; /* Tell the HW */ writel_relaxed(read_ptr, drvdata->base + TMC_RRP); - perf_aux_output_flag(handle, PERF_AUX_FLAG_TRUNCATED); + lost = true; } + if (lost) + perf_aux_output_flag(handle, PERF_AUX_FLAG_TRUNCATED); + cur = buf->cur; offset = buf->offset; |