drm/i915: Include the csc matrices in the crtc state dump

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@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230329135002.3096-11-ville.syrjala@linux.intel.com
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>

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 54c8adc..0cdcaa4 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
+++ b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
@@ -158,6 +158,45 @@ 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 +364,14 @@ 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;