[PATCH 10/16] drm/i915: Add LUT load start/end tracepoints

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Add tracepoints around the LUT load to allow us to measure how long
this stuff takes.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_color.c |  7 +++-
 drivers/gpu/drm/i915/i915_trace.h          | 42 ++++++++++++++++++++++
 2 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index a3eab7bf76e4..e73a3ac884fb 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -25,6 +25,8 @@
 #include "intel_color.h"
 #include "intel_display_types.h"
 
+#include "i915_trace.h"
+
 #define CTM_COEFF_SIGN	(1ULL << 63)
 
 #define CTM_COEFF_1_0	(1ULL << 32)
@@ -1023,9 +1025,12 @@ static void chv_load_luts(const struct intel_crtc_state *crtc_state)
 
 void intel_color_load_luts(const struct intel_crtc_state *crtc_state)
 {
-	struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
 
+	trace_intel_load_luts_start(crtc);
 	dev_priv->display.load_luts(crtc_state);
+	trace_intel_load_luts_end(crtc);
 }
 
 void intel_color_commit(const struct intel_crtc_state *crtc_state)
diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h
index 24f2944da09d..3b326bcc1608 100644
--- a/drivers/gpu/drm/i915/i915_trace.h
+++ b/drivers/gpu/drm/i915/i915_trace.h
@@ -20,6 +20,48 @@
 
 /* watermark/fifo updates */
 
+TRACE_EVENT(intel_load_luts_start,
+	    TP_PROTO(struct intel_crtc *crtc),
+	    TP_ARGS(crtc),
+
+	    TP_STRUCT__entry(
+			     __field(enum pipe, pipe)
+			     __field(u32, frame)
+			     __field(u32, scanline)
+			     ),
+
+	    TP_fast_assign(
+			   __entry->pipe = crtc->pipe;
+			   __entry->frame = intel_crtc_get_vblank_counter(crtc);
+			   __entry->scanline = intel_get_crtc_scanline(crtc);
+			   ),
+
+	    TP_printk("pipe %c, frame %u, scanline %u",
+		      pipe_name(__entry->pipe),
+		      __entry->frame, __entry->scanline)
+);
+
+TRACE_EVENT(intel_load_luts_end,
+	    TP_PROTO(struct intel_crtc *crtc),
+	    TP_ARGS(crtc),
+
+	    TP_STRUCT__entry(
+			     __field(enum pipe, pipe)
+			     __field(u32, frame)
+			     __field(u32, scanline)
+			     ),
+
+	    TP_fast_assign(
+			   __entry->pipe = crtc->pipe;
+			   __entry->frame = intel_crtc_get_vblank_counter(crtc);
+			   __entry->scanline = intel_get_crtc_scanline(crtc);
+			   ),
+
+	    TP_printk("pipe %c, frame %u, scanline %u",
+		      pipe_name(__entry->pipe),
+		      __entry->frame, __entry->scanline)
+);
+
 TRACE_EVENT(intel_pipe_enable,
 	    TP_PROTO(struct intel_crtc *crtc),
 	    TP_ARGS(crtc),
-- 
2.21.0