[PATCH v2 20/23] coresight: trbe: Add fault action argument to trbe_handle_overflow()

From: Leo Yan

Date: Fri Oct 16 2026 - 13:07:05 EST


Add a new argument to trbe_handle_overflow() for the fault action, which
is used to compare the wrap event for trace size calculation.

No functional change intended; this is preparation for a later update.

Signed-off-by: Leo Yan <leo.yan@xxxxxxx>
---
drivers/hwtracing/coresight/coresight-trbe.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-trbe.c b/drivers/hwtracing/coresight/coresight-trbe.c
index f1f102df6c387f53feaa12b89d3df89f734afcdb..c83c440d4ac13c346bc2a7f9093951c186c90157 100644
--- a/drivers/hwtracing/coresight/coresight-trbe.c
+++ b/drivers/hwtracing/coresight/coresight-trbe.c
@@ -1132,7 +1132,8 @@ static void trbe_handle_spurious(struct trbe_cpudata *cpudata)
set_trbe_enabled(cpudata, trblimitr);
}

-static int trbe_handle_overflow(struct trbe_cpudata *cpudata)
+static int trbe_handle_overflow(struct trbe_cpudata *cpudata,
+ enum trbe_fault_action act)
{
struct perf_output_handle *handle = cpudata->handle;
struct perf_event *event = handle->event;
@@ -1147,7 +1148,7 @@ static int trbe_handle_overflow(struct trbe_cpudata *cpudata)
*/
clr_trbe_status();

- size = trbe_get_trace_size(handle, buf, true);
+ size = trbe_get_trace_size(handle, buf, act == TRBE_FAULT_ACT_WRAP);
if (buf->snapshot)
handle->head += size;

@@ -1253,7 +1254,7 @@ static irqreturn_t arm_trbe_irq_handler(int irq, void *dev)
act = trbe_get_fault_act(handle, status);
switch (act) {
case TRBE_FAULT_ACT_WRAP:
- truncated = !!trbe_handle_overflow(cpudata);
+ truncated = !!trbe_handle_overflow(cpudata, act);
break;
case TRBE_FAULT_ACT_SPURIOUS:
trbe_handle_spurious(cpudata);

--
2.34.1