From: Tony Cheng <tony.cheng@amd.com>
Date: Wed, 8 Nov 2017 16:07:53 -0500
Subject: drm/amd/display: performance profiling instrumentation
Git-commit: dce46c53208f90cf5a401b62b17bbe2bc629c069
Patch-mainline: v4.16-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Signed-off-by: Tony Cheng <tony.cheng@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c |    4 ++++
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c  |    4 ++++
 drivers/gpu/drm/amd/display/dc/dm_services.h               |    7 +++++++
 3 files changed, 15 insertions(+)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
@@ -41,6 +41,10 @@ unsigned long long dm_get_timestamp(stru
 	return 0;
 }
 
+void dm_perf_trace_timestamp(const char *func_name, unsigned int line)
+{
+}
+
 bool dm_write_persistent_data(struct dc_context *ctx,
 		const struct dc_sink *sink,
 		const char *module_name,
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -1047,6 +1047,8 @@ dcn10_translate_regamma_to_hw_format(con
 	if (output_tf == NULL || regamma_params == NULL || output_tf->type == TF_TYPE_BYPASS)
 		return false;
 
+	PERF_TRACE();
+
 	arr_points = regamma_params->arr_points;
 	rgb_resulted = regamma_params->rgb_resulted;
 	hw_points = 0;
@@ -1189,6 +1191,8 @@ dcn10_translate_regamma_to_hw_format(con
 
 	convert_to_custom_float(rgb_resulted, arr_points, hw_points);
 
+	PERF_TRACE();
+
 	return true;
 }
 
--- a/drivers/gpu/drm/amd/display/dc/dm_services.h
+++ b/drivers/gpu/drm/amd/display/dc/dm_services.h
@@ -373,6 +373,13 @@ bool dm_dmcu_set_pipe(struct dc_context
 unsigned long long dm_get_timestamp(struct dc_context *ctx);
 
 /*
+ * performance tracing
+ */
+void dm_perf_trace_timestamp(const char *func_name, unsigned int line);
+#define PERF_TRACE()	dm_perf_trace_timestamp(__func__, __LINE__)
+
+
+/*
  * Debug and verification hooks
  */
 bool dm_helpers_dc_conn_log(