drm/amd/display: Add DCN3 DPP

Add support to program the DCN3 DPP (Multiple pipe and plane combine)

HW Blocks:

    +--------+
    |  DPP   |
    +--------+
        |
        v
    +--------+
    |  MPC   |
    +--------+
        |
        v
    +-------+
    |  OPP  |
    +-------+
        |
        v
    +--------+
    |  OPTC  |
    +--------+
        |
        v
    +--------+       +--------+
    |  DIO   |       |  DCCG  |
    +--------+       +--------+

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_cm_common.h

@@ -0,0 +1,78 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dcn10/dcn10_cm_common.h"
+
+#ifndef __DAL_DCN30_CM_COMMON_H__
+#define __DAL_DCN30_CM_COMMON_H__
+
+#define TF_HELPER_REG_FIELD_LIST_DCN3(type) \
+	TF_HELPER_REG_FIELD_LIST(type);\
+	type field_region_start_base;\
+	type field_offset
+
+struct DCN3_xfer_func_shift {
+	TF_HELPER_REG_FIELD_LIST_DCN3(uint8_t);
+};
+
+struct DCN3_xfer_func_mask {
+	TF_HELPER_REG_FIELD_LIST_DCN3(uint32_t);
+};
+
+struct dcn3_xfer_func_reg {
+	struct DCN3_xfer_func_shift shifts;
+	struct DCN3_xfer_func_mask masks;
+
+	TF_HELPER_REG_LIST;
+	uint32_t offset_b;
+	uint32_t offset_g;
+	uint32_t offset_r;
+	uint32_t start_base_cntl_b;
+	uint32_t start_base_cntl_g;
+	uint32_t start_base_cntl_r;
+};
+
+void cm_helper_program_gamcor_xfer_func(
+	struct dc_context *ctx,
+	const struct pwl_params *params,
+	const struct dcn3_xfer_func_reg *reg);
+
+bool cm3_helper_translate_curve_to_hw_format(
+	const struct dc_transfer_func *output_tf,
+	struct pwl_params *lut_params, bool fixpoint);
+
+bool cm3_helper_translate_curve_to_degamma_hw_format(
+				const struct dc_transfer_func *output_tf,
+				struct pwl_params *lut_params);
+
+bool cm3_helper_convert_to_custom_float(
+		struct pwl_result_data *rgb_resulted,
+		struct curve_points3 *corner_points,
+		uint32_t hw_points_num,
+		bool fixpoint);
+
+bool is_rgb_equal(const struct pwl_result_data *rgb, uint32_t num);
+
+#endif

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dpp_cm.c

@@ -0,0 +1,410 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+#include "core_types.h"
+#include "reg_helper.h"
+#include "dcn30_dpp.h"
+#include "basics/conversion.h"
+#include "dcn30_cm_common.h"
+
+#define REG(reg)\
+	dpp->tf_regs->reg
+
+#define CTX \
+	dpp->base.ctx
+
+#undef FN
+#define FN(reg_name, field_name) \
+	dpp->tf_shift->field_name, dpp->tf_mask->field_name
+
+static void dpp3_enable_cm_block(
+		struct dpp *dpp_base)
+{
+	struct dcn3_dpp *dpp = TO_DCN30_DPP(dpp_base);
+
+	unsigned int cm_bypass_mode = 0;
+
+	// debug option: put CM in bypass mode
+	if (dpp_base->ctx->dc->debug.cm_in_bypass)
+		cm_bypass_mode = 1;
+
+	REG_UPDATE(CM_CONTROL, CM_BYPASS, cm_bypass_mode);
+}
+
+static enum dc_lut_mode dpp30_get_gamcor_current(struct dpp *dpp_base)
+{
+	enum dc_lut_mode mode;
+	uint32_t state_mode;
+	uint32_t lut_mode;
+	struct dcn3_dpp *dpp = TO_DCN30_DPP(dpp_base);
+
+	REG_GET(CM_GAMCOR_CONTROL,
+			CM_GAMCOR_MODE_CURRENT, &state_mode);
+
+		if (state_mode == 0)
+			mode = LUT_BYPASS;
+
+		if (state_mode == 2) {//Programmable RAM LUT
+			REG_GET(CM_GAMCOR_CONTROL,
+					CM_GAMCOR_SELECT_CURRENT, &lut_mode);
+
+			if (lut_mode == 0)
+				mode = LUT_RAM_A;
+			else
+				mode = LUT_RAM_B;
+		}
+
+		return mode;
+}
+
+static void dpp3_program_gammcor_lut(
+		struct dpp *dpp_base,
+		const struct pwl_result_data *rgb,
+		uint32_t num,
+		bool is_ram_a)
+{
+	uint32_t i;
+	struct dcn3_dpp *dpp = TO_DCN30_DPP(dpp_base);
+	uint32_t last_base_value_red = rgb[num-1].red_reg + rgb[num-1].delta_red_reg;
+	uint32_t last_base_value_green = rgb[num-1].green_reg + rgb[num-1].delta_green_reg;
+	uint32_t last_base_value_blue = rgb[num-1].blue_reg + rgb[num-1].delta_blue_reg;
+
+	/*fill in the LUT with all base values to be used by pwl module
+	 * HW auto increments the LUT index: back-to-back write
+	 */
+	if (is_rgb_equal(rgb,  num)) {
+		for (i = 0 ; i < num; i++)
+			REG_SET(CM_GAMCOR_LUT_DATA, 0, CM_GAMCOR_LUT_DATA, rgb[i].red_reg);
+
+		REG_SET(CM_GAMCOR_LUT_DATA, 0, CM_GAMCOR_LUT_DATA, last_base_value_red);
+
+	} else {
+		REG_UPDATE(CM_GAMCOR_LUT_CONTROL,
+				CM_GAMCOR_LUT_WRITE_COLOR_MASK, 4);
+		for (i = 0 ; i < num; i++)
+			REG_SET(CM_GAMCOR_LUT_DATA, 0, CM_GAMCOR_LUT_DATA, rgb[i].red_reg);
+
+		REG_SET(CM_GAMCOR_LUT_DATA, 0, CM_GAMCOR_LUT_DATA, last_base_value_red);
+
+		REG_SET(CM_GAMCOR_LUT_INDEX, 0, CM_GAMCOR_LUT_INDEX, 0);
+
+		REG_UPDATE(CM_GAMCOR_LUT_CONTROL,
+				CM_GAMCOR_LUT_WRITE_COLOR_MASK, 2);
+		for (i = 0 ; i < num; i++)
+			REG_SET(CM_GAMCOR_LUT_DATA, 0, CM_GAMCOR_LUT_DATA, rgb[i].green_reg);
+
+		REG_SET(CM_GAMCOR_LUT_DATA, 0, CM_GAMCOR_LUT_DATA, last_base_value_green);
+
+		REG_SET(CM_GAMCOR_LUT_INDEX, 0, CM_GAMCOR_LUT_INDEX, 0);
+
+		REG_UPDATE(CM_GAMCOR_LUT_CONTROL,
+				CM_GAMCOR_LUT_WRITE_COLOR_MASK, 1);
+		for (i = 0 ; i < num; i++)
+			REG_SET(CM_GAMCOR_LUT_DATA, 0, CM_GAMCOR_LUT_DATA, rgb[i].blue_reg);
+
+		REG_SET(CM_GAMCOR_LUT_DATA, 0, CM_GAMCOR_LUT_DATA, last_base_value_blue);
+	}
+}
+
+static void dpp3_power_on_gamcor_lut(
+		struct dpp *dpp_base,
+	bool power_on)
+{
+	uint32_t power_status;
+	struct dcn3_dpp *dpp = TO_DCN30_DPP(dpp_base);
+
+
+	REG_SET(CM_MEM_PWR_CTRL, 0,
+			GAMCOR_MEM_PWR_DIS, power_on == true ? 0:1);
+
+	REG_GET(CM_MEM_PWR_STATUS, GAMCOR_MEM_PWR_STATE, &power_status);
+	if (power_status != 0)
+		BREAK_TO_DEBUGGER();
+
+
+}
+
+void dpp3_program_cm_dealpha(
+		struct dpp *dpp_base,
+	uint32_t enable, uint32_t additive_blending)
+{
+	struct dcn3_dpp *dpp = TO_DCN30_DPP(dpp_base);
+
+	REG_SET_2(CM_DEALPHA, 0,
+			CM_DEALPHA_EN, enable,
+			CM_DEALPHA_ABLND, additive_blending);
+}
+
+void dpp3_program_cm_bias(
+	struct dpp *dpp_base,
+	struct CM_bias_params *bias_params)
+{
+	struct dcn3_dpp *dpp = TO_DCN30_DPP(dpp_base);
+
+	REG_SET(CM_BIAS_CR_R, 0, CM_BIAS_CR_R, bias_params->cm_bias_cr_r);
+	REG_SET_2(CM_BIAS_Y_G_CB_B, 0,
+			CM_BIAS_Y_G, bias_params->cm_bias_y_g,
+			CM_BIAS_CB_B, bias_params->cm_bias_cb_b);
+}
+
+static void dpp3_gamcor_reg_field(
+		struct dcn3_dpp *dpp,
+		struct dcn3_xfer_func_reg *reg)
+{
+
+	reg->shifts.field_region_start_base = dpp->tf_shift->CM_GAMCOR_RAMA_EXP_REGION_START_BASE_B;
+	reg->masks.field_region_start_base = dpp->tf_mask->CM_GAMCOR_RAMA_EXP_REGION_START_BASE_B;
+	reg->shifts.field_offset = dpp->tf_shift->CM_GAMCOR_RAMA_OFFSET_B;
+	reg->masks.field_offset = dpp->tf_mask->CM_GAMCOR_RAMA_OFFSET_B;
+
+	reg->shifts.exp_region0_lut_offset = dpp->tf_shift->CM_GAMCOR_RAMA_EXP_REGION0_LUT_OFFSET;
+	reg->masks.exp_region0_lut_offset = dpp->tf_mask->CM_GAMCOR_RAMA_EXP_REGION0_LUT_OFFSET;
+	reg->shifts.exp_region0_num_segments = dpp->tf_shift->CM_GAMCOR_RAMA_EXP_REGION0_NUM_SEGMENTS;
+	reg->masks.exp_region0_num_segments = dpp->tf_mask->CM_GAMCOR_RAMA_EXP_REGION0_NUM_SEGMENTS;
+	reg->shifts.exp_region1_lut_offset = dpp->tf_shift->CM_GAMCOR_RAMA_EXP_REGION1_LUT_OFFSET;
+	reg->masks.exp_region1_lut_offset = dpp->tf_mask->CM_GAMCOR_RAMA_EXP_REGION1_LUT_OFFSET;
+	reg->shifts.exp_region1_num_segments = dpp->tf_shift->CM_GAMCOR_RAMA_EXP_REGION1_NUM_SEGMENTS;
+	reg->masks.exp_region1_num_segments = dpp->tf_mask->CM_GAMCOR_RAMA_EXP_REGION1_NUM_SEGMENTS;
+
+	reg->shifts.field_region_end = dpp->tf_shift->CM_GAMCOR_RAMA_EXP_REGION_END_B;
+	reg->masks.field_region_end = dpp->tf_mask->CM_GAMCOR_RAMA_EXP_REGION_END_B;
+	reg->shifts.field_region_end_slope = dpp->tf_shift->CM_GAMCOR_RAMA_EXP_REGION_END_SLOPE_B;
+	reg->masks.field_region_end_slope = dpp->tf_mask->CM_GAMCOR_RAMA_EXP_REGION_END_SLOPE_B;
+	reg->shifts.field_region_end_base = dpp->tf_shift->CM_GAMCOR_RAMA_EXP_REGION_END_BASE_B;
+	reg->masks.field_region_end_base = dpp->tf_mask->CM_GAMCOR_RAMA_EXP_REGION_END_BASE_B;
+	reg->shifts.field_region_linear_slope = dpp->tf_shift->CM_GAMCOR_RAMA_EXP_REGION_START_SLOPE_B;
+	reg->masks.field_region_linear_slope = dpp->tf_mask->CM_GAMCOR_RAMA_EXP_REGION_START_SLOPE_B;
+	reg->shifts.exp_region_start = dpp->tf_shift->CM_GAMCOR_RAMA_EXP_REGION_START_B;
+	reg->masks.exp_region_start = dpp->tf_mask->CM_GAMCOR_RAMA_EXP_REGION_START_B;
+	reg->shifts.exp_resion_start_segment = dpp->tf_shift->CM_GAMCOR_RAMA_EXP_REGION_START_SEGMENT_B;
+	reg->masks.exp_resion_start_segment = dpp->tf_mask->CM_GAMCOR_RAMA_EXP_REGION_START_SEGMENT_B;
+}
+
+static void dpp3_configure_gamcor_lut(
+		struct dpp *dpp_base,
+		bool is_ram_a)
+{
+	struct dcn3_dpp *dpp = TO_DCN30_DPP(dpp_base);
+
+	REG_UPDATE(CM_GAMCOR_LUT_CONTROL,
+			CM_GAMCOR_LUT_WRITE_COLOR_MASK, 7);
+	REG_UPDATE(CM_GAMCOR_LUT_CONTROL,
+			CM_GAMCOR_LUT_HOST_SEL, is_ram_a == true ? 0:1);
+	REG_SET(CM_GAMCOR_LUT_INDEX, 0, CM_GAMCOR_LUT_INDEX, 0);
+}
+
+
+bool dpp3_program_gamcor_lut(
+	struct dpp *dpp_base, const struct pwl_params *params)
+{
+	enum dc_lut_mode current_mode;
+	enum dc_lut_mode next_mode;
+	struct dcn3_dpp *dpp = TO_DCN30_DPP(dpp_base);
+	struct dcn3_xfer_func_reg gam_regs;
+
+	dpp3_enable_cm_block(dpp_base);
+
+	if (params == NULL) { //bypass if we have no pwl data
+		REG_SET(CM_GAMCOR_CONTROL, 0, CM_GAMCOR_MODE, 0);
+		return false;
+	}
+	dpp3_power_on_gamcor_lut(dpp_base, true);
+	REG_SET(CM_GAMCOR_CONTROL, 0, CM_GAMCOR_MODE, 2);
+
+	current_mode = dpp30_get_gamcor_current(dpp_base);
+	if (current_mode == LUT_BYPASS || current_mode == LUT_RAM_A)
+		next_mode = LUT_RAM_B;
+	else
+		next_mode = LUT_RAM_A;
+
+	dpp3_power_on_gamcor_lut(dpp_base, true);
+	dpp3_configure_gamcor_lut(dpp_base, next_mode == LUT_RAM_A ? true:false);
+
+	if (next_mode == LUT_RAM_B) {
+		gam_regs.start_cntl_b = REG(CM_GAMCOR_RAMB_START_CNTL_B);
+		gam_regs.start_cntl_g = REG(CM_GAMCOR_RAMB_START_CNTL_G);
+		gam_regs.start_cntl_r = REG(CM_GAMCOR_RAMB_START_CNTL_R);
+		gam_regs.start_slope_cntl_b = REG(CM_GAMCOR_RAMB_START_SLOPE_CNTL_B);
+		gam_regs.start_slope_cntl_g = REG(CM_GAMCOR_RAMB_START_SLOPE_CNTL_G);
+		gam_regs.start_slope_cntl_r = REG(CM_GAMCOR_RAMB_START_SLOPE_CNTL_R);
+		gam_regs.start_end_cntl1_b = REG(CM_GAMCOR_RAMB_END_CNTL1_B);
+		gam_regs.start_end_cntl2_b = REG(CM_GAMCOR_RAMB_END_CNTL2_B);
+		gam_regs.start_end_cntl1_g = REG(CM_GAMCOR_RAMB_END_CNTL1_G);
+		gam_regs.start_end_cntl2_g = REG(CM_GAMCOR_RAMB_END_CNTL2_G);
+		gam_regs.start_end_cntl1_r = REG(CM_GAMCOR_RAMB_END_CNTL1_R);
+		gam_regs.start_end_cntl2_r = REG(CM_GAMCOR_RAMB_END_CNTL2_R);
+		gam_regs.region_start = REG(CM_GAMCOR_RAMB_REGION_0_1);
+		gam_regs.region_end = REG(CM_GAMCOR_RAMB_REGION_32_33);
+		//New registers in DCN3AG/DCN GAMCOR block
+		gam_regs.offset_b =  REG(CM_GAMCOR_RAMB_OFFSET_B);
+		gam_regs.offset_g =  REG(CM_GAMCOR_RAMB_OFFSET_G);
+		gam_regs.offset_r =  REG(CM_GAMCOR_RAMB_OFFSET_R);
+		gam_regs.start_base_cntl_b = REG(CM_GAMCOR_RAMB_START_BASE_CNTL_B);
+		gam_regs.start_base_cntl_g = REG(CM_GAMCOR_RAMB_START_BASE_CNTL_G);
+		gam_regs.start_base_cntl_r = REG(CM_GAMCOR_RAMB_START_BASE_CNTL_R);
+	} else {
+		gam_regs.start_cntl_b = REG(CM_GAMCOR_RAMA_START_CNTL_B);
+		gam_regs.start_cntl_g = REG(CM_GAMCOR_RAMA_START_CNTL_G);
+		gam_regs.start_cntl_r = REG(CM_GAMCOR_RAMA_START_CNTL_R);
+		gam_regs.start_slope_cntl_b = REG(CM_GAMCOR_RAMA_START_SLOPE_CNTL_B);
+		gam_regs.start_slope_cntl_g = REG(CM_GAMCOR_RAMA_START_SLOPE_CNTL_G);
+		gam_regs.start_slope_cntl_r = REG(CM_GAMCOR_RAMA_START_SLOPE_CNTL_R);
+		gam_regs.start_end_cntl1_b = REG(CM_GAMCOR_RAMA_END_CNTL1_B);
+		gam_regs.start_end_cntl2_b = REG(CM_GAMCOR_RAMA_END_CNTL2_B);
+		gam_regs.start_end_cntl1_g = REG(CM_GAMCOR_RAMA_END_CNTL1_G);
+		gam_regs.start_end_cntl2_g = REG(CM_GAMCOR_RAMA_END_CNTL2_G);
+		gam_regs.start_end_cntl1_r = REG(CM_GAMCOR_RAMA_END_CNTL1_R);
+		gam_regs.start_end_cntl2_r = REG(CM_GAMCOR_RAMA_END_CNTL2_R);
+		gam_regs.region_start = REG(CM_GAMCOR_RAMA_REGION_0_1);
+		gam_regs.region_end = REG(CM_GAMCOR_RAMA_REGION_32_33);
+		//New registers in DCN3AG/DCN GAMCOR block
+		gam_regs.offset_b =  REG(CM_GAMCOR_RAMA_OFFSET_B);
+		gam_regs.offset_g =  REG(CM_GAMCOR_RAMA_OFFSET_G);
+		gam_regs.offset_r =  REG(CM_GAMCOR_RAMA_OFFSET_R);
+		gam_regs.start_base_cntl_b = REG(CM_GAMCOR_RAMA_START_BASE_CNTL_B);
+		gam_regs.start_base_cntl_g = REG(CM_GAMCOR_RAMA_START_BASE_CNTL_G);
+		gam_regs.start_base_cntl_r = REG(CM_GAMCOR_RAMA_START_BASE_CNTL_R);
+	}
+
+	//get register fields
+	dpp3_gamcor_reg_field(dpp, &gam_regs);
+
+	//program register set for LUTA/LUTB
+	cm_helper_program_gamcor_xfer_func(dpp_base->ctx, params, &gam_regs);
+
+	dpp3_program_gammcor_lut(dpp_base, params->rgb_resulted, params->hw_points_num,
+			next_mode == LUT_RAM_A ? true:false);
+
+	//select Gamma LUT to use for next frame
+	REG_UPDATE(CM_GAMCOR_CONTROL, CM_GAMCOR_SELECT, next_mode == LUT_RAM_A ? 0:1);
+
+	return true;
+}
+
+void dpp3_set_hdr_multiplier(
+		struct dpp *dpp_base,
+		uint32_t multiplier)
+{
+	struct dcn3_dpp *dpp = TO_DCN30_DPP(dpp_base);
+
+	REG_UPDATE(CM_HDR_MULT_COEF, CM_HDR_MULT_COEF, multiplier);
+}
+
+
+static void program_gamut_remap(
+		struct dcn3_dpp *dpp,
+		const uint16_t *regval,
+		int select)
+{
+	uint16_t selection = 0;
+	struct color_matrices_reg gam_regs;
+
+	if (regval == NULL || select == GAMUT_REMAP_BYPASS) {
+		REG_SET(CM_GAMUT_REMAP_CONTROL, 0,
+				CM_GAMUT_REMAP_MODE, 0);
+		return;
+	}
+	switch (select) {
+	case GAMUT_REMAP_COEFF:
+		selection = 1;
+		break;
+		/*this corresponds to GAMUT_REMAP coefficients set B
+		 *we don't have common coefficient sets in dcn3ag/dcn3
+		 */
+	case GAMUT_REMAP_COMA_COEFF:
+		selection = 2;
+		break;
+	default:
+		break;
+	}
+
+	gam_regs.shifts.csc_c11 = dpp->tf_shift->CM_GAMUT_REMAP_C11;
+	gam_regs.masks.csc_c11  = dpp->tf_mask->CM_GAMUT_REMAP_C11;
+	gam_regs.shifts.csc_c12 = dpp->tf_shift->CM_GAMUT_REMAP_C12;
+	gam_regs.masks.csc_c12 = dpp->tf_mask->CM_GAMUT_REMAP_C12;
+
+
+	if (select == GAMUT_REMAP_COEFF) {
+		gam_regs.csc_c11_c12 = REG(CM_GAMUT_REMAP_C11_C12);
+		gam_regs.csc_c33_c34 = REG(CM_GAMUT_REMAP_C33_C34);
+
+		cm_helper_program_color_matrices(
+				dpp->base.ctx,
+				regval,
+				&gam_regs);
+
+	} else  if (select == GAMUT_REMAP_COMA_COEFF) {
+
+		gam_regs.csc_c11_c12 = REG(CM_GAMUT_REMAP_B_C11_C12);
+		gam_regs.csc_c33_c34 = REG(CM_GAMUT_REMAP_B_C33_C34);
+
+		cm_helper_program_color_matrices(
+				dpp->base.ctx,
+				regval,
+				&gam_regs);
+
+	}
+	//select coefficient set to use
+	REG_SET(
+			CM_GAMUT_REMAP_CONTROL, 0,
+			CM_GAMUT_REMAP_MODE, selection);
+}
+
+void dpp3_cm_set_gamut_remap(
+	struct dpp *dpp_base,
+	const struct dpp_grph_csc_adjustment *adjust)
+{
+	struct dcn3_dpp *dpp = TO_DCN30_DPP(dpp_base);
+	int i = 0;
+	int gamut_mode;
+
+	if (adjust->gamut_adjust_type != GRAPHICS_GAMUT_ADJUST_TYPE_SW)
+		/* Bypass if type is bypass or hw */
+		program_gamut_remap(dpp, NULL, GAMUT_REMAP_BYPASS);
+	else {
+		struct fixed31_32 arr_matrix[12];
+		uint16_t arr_reg_val[12];
+
+		for (i = 0; i < 12; i++)
+			arr_matrix[i] = adjust->temperature_matrix[i];
+
+		convert_float_matrix(
+			arr_reg_val, arr_matrix, 12);
+
+		//current coefficient set in use
+		REG_GET(CM_GAMUT_REMAP_CONTROL, CM_GAMUT_REMAP_MODE_CURRENT, &gamut_mode);
+
+		if (gamut_mode == 0)
+			gamut_mode = 1; //use coefficient set A
+		else if (gamut_mode == 1)
+			gamut_mode = 2;
+		else
+			gamut_mode = 1;
+
+		//follow dcn2 approach for now - using only coefficient set A
+		program_gamut_remap(dpp, arr_reg_val, GAMUT_REMAP_COEFF);
+	}
+}

drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h

@@ -121,6 +121,13 @@ struct CM_bias_params {
 };
 
 struct dpp_funcs {
+#if defined(CONFIG_DRM_AMD_DC_DCN3_0)
+	bool (*dpp_program_gamcor_lut)(
+		struct dpp *dpp_base, const struct pwl_params *params);
+
+	void (*dpp_set_pre_degam)(struct dpp *dpp_base,
+			enum dc_transfer_func_predefined tr);
+#endif
 
 	void (*dpp_program_cm_dealpha)(struct dpp *dpp_base,
 		uint32_t enable, uint32_t additive_blending);