From: Wyatt Wood <wyatt.w...@amd.com>
[Why]
Would like to identify the cause of AUX transactions failing
via ETW logs.
[How]
Add ETW logging for AUX failures.
Reviewed-by: Pavic Josip <josip.pa...@amd.com>
Acked-by: Solomon Chiu <solomon.c...@amd.com>
Signed-off-by: Wyatt Wood <wyatt.w...@amd.com>
---
drivers/gpu/drm/amd/display/dc/dce/dce_aux.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c
b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c
index 2fb88e54a4bf..058a9356a39a 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c
@@ -71,6 +71,8 @@ enum {
#define DEFAULT_AUX_ENGINE_MULT 0
#define DEFAULT_AUX_ENGINE_LENGTH 69
+#define DC_TRACE_LEVEL_MESSAGE(...) /* do nothing */
+
static void release_engine(
struct dce_aux *engine)
{
@@ -743,5 +745,11 @@ bool dce_aux_transfer_with_retries(struct ddc_service *ddc,
fail:
if (!payload_reply)
payload->reply = NULL;
+
+ DC_TRACE_LEVEL_MESSAGE(DAL_TRACE_LEVEL_ERROR,
+ WPP_BIT_FLAG_DC_ERROR,
+ "AUX transaction failed. Result: %d",
+ operation_result);
+
return false;
}
--
2.25.1
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