[Intel-gfx] [PATCH 10/12] drm/i915: Include the csc matrices in the crtc state dump

[Ville Syrjala]

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

Include the csc matrices in the state dump. The format being
hardware specific we just dump as hex for now. Might have
to think of some way to get a bit more human readable
output...

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 .../drm/i915/display/intel_crtc_state_dump.c  | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
index 766633566fd6..2c410ad53ccd 100644
--- a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
+++ b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
@@ -158,6 +158,41 @@ static void intel_dump_plane_state(const struct intel_plane_state *plane_state)
 			    DRM_RECT_ARG(&plane_state->uapi.dst));
 }
 
+static void
+ilk_dump_csc(struct drm_i915_private *i915, const char *name,
+	     const struct intel_csc_matrix *csc)
+{
+	int i;
+
+	drm_dbg_kms(&i915->drm,
+		    "%s: pre offsets: 0x%04x 0x%04x 0x%04x\n", name,
+		    csc->preoff[0], csc->preoff[1], csc->preoff[2]);
+
+	for (i = 0; i < 3; i++)
+		drm_dbg_kms(&i915->drm,
+			    "%s: coefficients: 0x%04x 0x%04x 0x%04x\n", name,
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
+
+	if (DISPLAY_VER(i915) < 7)
+		return;
+
+	drm_dbg_kms(&i915->drm,
+		    "%s: post offsets: 0x%04x 0x%04x 0x%04x\n", name,
+		    csc->postoff[0], csc->postoff[1], csc->postoff[2]);
+}
+
+static void
+chv_dump_csc(struct drm_i915_private *i915, const char *name,
+	     const struct intel_csc_matrix *csc)
+{
+	int i;
+
+	for (i = 0; i < 3; i++)
+		drm_dbg_kms(&i915->drm,
+			    "%s: coefficients: 0x%04x 0x%04x 0x%04x\n", name,
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
+}
+
 void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
 			   struct intel_atomic_state *state,
 			   const char *context)
@@ -325,6 +360,14 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
 		    pipe_config->post_csc_lut ?
 		    drm_color_lut_size(pipe_config->post_csc_lut) : 0);
 
+	if (DISPLAY_VER(i915) >= 11)
+		ilk_dump_csc(i915, "output csc", &pipe_config->output_csc);
+
+	if (!HAS_GMCH(i915))
+		ilk_dump_csc(i915, "pipe csc", &pipe_config->csc);
+	else if (IS_CHERRYVIEW(i915))
+		chv_dump_csc(i915, "cgm csc", &pipe_config->csc);
+
 dump_planes:
 	if (!state)
 		return;
-- 
2.39.2