[RFC PATCH 2/5] drm/amd/display: fill up DCN3 DPP color state

[Melissa Wen]

DCN3 DPP color state was uncollected and some state elements from DCN1
doesn't fit DCN3. Create new elements according to DCN3 color caps and
fill them up for DTN log output.

Signed-off-by: Melissa Wen <mwen at igalia.com>
---
 .../gpu/drm/amd/display/dc/dcn30/dcn30_dpp.c  | 28 +++++++++++++++++--
 drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h   |  8 ++++++
 2 files changed, 33 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dpp.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dpp.c
index 50dc83404644..a91d72f44bbd 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dpp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dpp.c
@@ -46,9 +46,31 @@ void dpp30_read_state(struct dpp *dpp_base, struct dcn_dpp_state *s)
 	struct dcn3_dpp *dpp = TO_DCN30_DPP(dpp_base);
 
 	REG_GET(DPP_CONTROL,
-			DPP_CLOCK_ENABLE, &s->is_enabled);
-
-	// TODO: Implement for DCN3
+		DPP_CLOCK_ENABLE, &s->is_enabled);
+	REG_GET_2(PRE_DEGAM,
+		  PRE_DEGAM_MODE, &s->pre_dgam_mode,
+		  PRE_DEGAM_SELECT, &s->pre_dgam_select);
+	REG_GET(CM_SHAPER_CONTROL,
+		CM_SHAPER_LUT_MODE, &s->shaper_lut_mode);
+	REG_GET(CM_3DLUT_MODE,
+		CM_3DLUT_MODE_CURRENT, &s->lut3d_mode);
+	REG_GET(CM_3DLUT_READ_WRITE_CONTROL,
+		CM_3DLUT_30BIT_EN, &s->lut3d_bit_depth);
+	REG_GET(CM_3DLUT_MODE,
+		CM_3DLUT_SIZE, &s->lut3d_size);
+	// BGAM has no ROM, and definition is different, can't reuse same dump
+        REG_GET(CM_BLNDGAM_CONTROL,
+		CM_BLNDGAM_LUT_MODE, &s->rgam_lut_mode);
+	REG_GET(CM_GAMUT_REMAP_CONTROL,
+		CM_GAMUT_REMAP_MODE, &s->gamut_remap_mode);
+	if (s->gamut_remap_mode) {
+		s->gamut_remap_c11_c12 = REG_READ(CM_GAMUT_REMAP_C11_C12);
+		s->gamut_remap_c13_c14 = REG_READ(CM_GAMUT_REMAP_C13_C14);
+		s->gamut_remap_c21_c22 = REG_READ(CM_GAMUT_REMAP_C21_C22);
+		s->gamut_remap_c23_c24 = REG_READ(CM_GAMUT_REMAP_C23_C24);
+		s->gamut_remap_c31_c32 = REG_READ(CM_GAMUT_REMAP_C31_C32);
+		s->gamut_remap_c33_c34 = REG_READ(CM_GAMUT_REMAP_C33_C34);
+	}
 }
 /*program post scaler scs block in dpp CM*/
 void dpp3_program_post_csc(
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h b/drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h
index f4aa76e02518..7e69d9e28f5b 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h
@@ -148,6 +148,14 @@ struct dcn_dpp_state {
 	uint32_t gamut_remap_c23_c24;
 	uint32_t gamut_remap_c31_c32;
 	uint32_t gamut_remap_c33_c34;
+	uint32_t shaper_lut_mode;
+	uint32_t lut3d_mode;
+	uint32_t lut3d_bit_depth;
+	uint32_t lut3d_size;
+	uint32_t blnd_lut_mode;
+	uint32_t pre_dgam_mode;
+	uint32_t pre_dgam_select;
+	uint32_t gamcor_lut_mode;
 };
 
 struct CM_bias_params {
-- 
2.40.1