drm/amd/display: remove redundant CONFIG_DRM_AMD_DC_DCN in dc

[Why & How]
CONFIG_DRM_AMD_DC_DCN is used by pass the compilation failures, but DC
code should be OS-agnostic.

This patch fixes it by removing unnecessasry CONFIG_DRM_AMD_DC_DCN
in dc and dc/core directories.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

12 files changed, 10 insertions, 121 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/Makefile b/drivers/gpu/drm/amd/display/dc/Makefile
index f05ab2bf20c5..b4eca0236435 100644
--- a/drivers/gpu/drm/amd/display/dc/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/Makefile
@@ -63,9 +63,7 @@ DISPLAY_CORE = dc.o  dc_stat.o dc_link.o dc_resource.o dc_hw_sequencer.o dc_sink
 dc_surface.o dc_link_dp.o dc_link_ddc.o dc_debug.o dc_stream.o \
 dc_link_enc_cfg.o dc_link_dpia.o dc_link_dpcd.o
 
-ifdef CONFIG_DRM_AMD_DC_DCN
 DISPLAY_CORE += dc_vm_helper.o
-endif
 
 AMD_DISPLAY_CORE = $(addprefix $(AMDDALPATH)/dc/core/,$(DISPLAY_CORE))
 
diff --git a/drivers/gpu/drm/amd/display/dc/bios/command_table_helper2.c b/drivers/gpu/drm/amd/display/dc/bios/command_table_helper2.c
index dd9704ef4ccc..f3792286f571 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/command_table_helper2.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/command_table_helper2.c
@@ -65,7 +65,6 @@ bool dal_bios_parser_init_cmd_tbl_helper2(
 	case DCE_VERSION_12_1:
 		*h = dal_cmd_tbl_helper_dce112_get_table2();
 		return true;
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	case DCN_VERSION_1_0:
 	case DCN_VERSION_1_01:
 	case DCN_VERSION_2_0:
@@ -80,7 +79,7 @@ bool dal_bios_parser_init_cmd_tbl_helper2(
 	case DCN_VERSION_3_16:
 		*h = dal_cmd_tbl_helper_dce112_get_table2();
 		return true;
-#endif
+
 	default:
 		/* Unsupported DCE */
 		BREAK_TO_DEBUGGER();
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index c2fcd67bcc4d..1eeea7c184ae 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -829,14 +829,12 @@ static void dc_destruct(struct dc *dc)
 	kfree(dc->bw_dceip);
 	dc->bw_dceip = NULL;
 
-#ifdef CONFIG_DRM_AMD_DC_DCN
 	kfree(dc->dcn_soc);
 	dc->dcn_soc = NULL;
 
 	kfree(dc->dcn_ip);
 	dc->dcn_ip = NULL;
 
-#endif
 	kfree(dc->vm_helper);
 	dc->vm_helper = NULL;
 
@@ -882,10 +880,8 @@ static bool dc_construct(struct dc *dc,
 	struct dc_context *dc_ctx;
 	struct bw_calcs_dceip *dc_dceip;
 	struct bw_calcs_vbios *dc_vbios;
-#ifdef CONFIG_DRM_AMD_DC_DCN
 	struct dcn_soc_bounding_box *dcn_soc;
 	struct dcn_ip_params *dcn_ip;
-#endif
 
 	dc->config = init_params->flags;
 
@@ -913,7 +909,6 @@ static bool dc_construct(struct dc *dc,
 	}
 
 	dc->bw_vbios = dc_vbios;
-#ifdef CONFIG_DRM_AMD_DC_DCN
 	dcn_soc = kzalloc(sizeof(*dcn_soc), GFP_KERNEL);
 	if (!dcn_soc) {
 		dm_error("%s: failed to create dcn_soc\n", __func__);
@@ -929,7 +924,6 @@ static bool dc_construct(struct dc *dc,
 	}
 
 	dc->dcn_ip = dcn_ip;
-#endif
 
 	if (!dc_construct_ctx(dc, init_params)) {
 		dm_error("%s: failed to create ctx\n", __func__);
@@ -1868,7 +1862,6 @@ bool dc_commit_state(struct dc *dc, struct dc_state *context)
 	return (result == DC_OK);
 }
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 bool dc_acquire_release_mpc_3dlut(
 		struct dc *dc, bool acquire,
 		struct dc_stream_state *stream,
@@ -1904,7 +1897,7 @@ bool dc_acquire_release_mpc_3dlut(
 	}
 	return ret;
 }
-#endif
+
 static bool is_flip_pending_in_pipes(struct dc *dc, struct dc_state *context)
 {
 	int i;
@@ -1925,7 +1918,6 @@ static bool is_flip_pending_in_pipes(struct dc *dc, struct dc_state *context)
 	return false;
 }
 
-#ifdef CONFIG_DRM_AMD_DC_DCN
 /* Perform updates here which need to be deferred until next vupdate
  *
  * i.e. blnd lut, 3dlut, and shaper lut bypass regs are double buffered
@@ -1944,7 +1936,6 @@ static void process_deferred_updates(struct dc *dc)
 				dc->res_pool->dpps[i]->funcs->dpp_deferred_update(dc->res_pool->dpps[i]);
 	}
 }
-#endif /* CONFIG_DRM_AMD_DC_DCN */
 
 void dc_post_update_surfaces_to_stream(struct dc *dc)
 {
@@ -1971,9 +1962,7 @@ void dc_post_update_surfaces_to_stream(struct dc *dc)
 			dc->hwss.disable_plane(dc, &context->res_ctx.pipe_ctx[i]);
 		}
 
-#ifdef CONFIG_DRM_AMD_DC_DCN
 	process_deferred_updates(dc);
-#endif
 
 	dc->hwss.optimize_bandwidth(dc, context);
 
@@ -1987,9 +1976,7 @@ static void init_state(struct dc *dc, struct dc_state *context)
 	 * initialize and obtain IP and SOC the base DML instance from DC is
 	 * initially copied into every context
 	 */
-#ifdef CONFIG_DRM_AMD_DC_DCN
 	memcpy(&context->bw_ctx.dml, &dc->dml, sizeof(struct display_mode_lib));
-#endif
 }
 
 struct dc_state *dc_create_state(struct dc *dc)
@@ -2361,11 +2348,9 @@ static enum surface_update_type check_update_surfaces_for_stream(
 	int i;
 	enum surface_update_type overall_type = UPDATE_TYPE_FAST;
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	if (dc->idle_optimizations_allowed)
 		overall_type = UPDATE_TYPE_FULL;
 
-#endif
 	if (stream_status == NULL || stream_status->plane_count != surface_count)
 		overall_type = UPDATE_TYPE_FULL;
 
@@ -2874,10 +2859,8 @@ static void commit_planes_for_stream(struct dc *dc,
 	}
 
 	if (update_type == UPDATE_TYPE_FULL) {
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 		dc_allow_idle_optimizations(dc, false);
 
-#endif
 		if (get_seamless_boot_stream_count(context) == 0)
 			dc->hwss.prepare_bandwidth(dc, context);
 
@@ -2895,7 +2878,6 @@ static void commit_planes_for_stream(struct dc *dc,
 		}
 	}
 
-#ifdef CONFIG_DRM_AMD_DC_DCN
 	if (stream->test_pattern.type != DP_TEST_PATTERN_VIDEO_MODE) {
 		struct pipe_ctx *mpcc_pipe;
 		struct pipe_ctx *odm_pipe;
@@ -2904,7 +2886,6 @@ static void commit_planes_for_stream(struct dc *dc,
 			for (odm_pipe = mpcc_pipe; odm_pipe; odm_pipe = odm_pipe->next_odm_pipe)
 				odm_pipe->ttu_regs.min_ttu_vblank = MAX_TTU;
 	}
-#endif
 
 	if ((update_type != UPDATE_TYPE_FAST) && stream->update_flags.bits.dsc_changed)
 		if (top_pipe_to_program &&
@@ -3014,7 +2995,6 @@ static void commit_planes_for_stream(struct dc *dc,
 	}
 	if (dc->hwss.program_front_end_for_ctx && update_type != UPDATE_TYPE_FAST) {
 		dc->hwss.program_front_end_for_ctx(dc, context);
-#ifdef CONFIG_DRM_AMD_DC_DCN
 		if (dc->debug.validate_dml_output) {
 			for (i = 0; i < dc->res_pool->pipe_count; i++) {
 				struct pipe_ctx *cur_pipe = &context->res_ctx.pipe_ctx[i];
@@ -3028,7 +3008,6 @@ static void commit_planes_for_stream(struct dc *dc,
 						&context->res_ctx.pipe_ctx[i].ttu_regs);
 			}
 		}
-#endif
 	}
 
 	// Update Type FAST, Surface updates
@@ -3583,8 +3562,6 @@ bool dc_set_psr_allow_active(struct dc *dc, bool enable)
 	return true;
 }
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
-
 void dc_allow_idle_optimizations(struct dc *dc, bool allow)
 {
 	if (dc->debug.disable_idle_power_optimizations)
@@ -3740,7 +3717,6 @@ void dc_hardware_release(struct dc *dc)
 	if (dc->hwss.hardware_release)
 		dc->hwss.hardware_release(dc);
 }
-#endif
 
 /*
  *****************************************************************************
@@ -3760,13 +3736,12 @@ void dc_hardware_release(struct dc *dc)
  */
 bool dc_is_dmub_outbox_supported(struct dc *dc)
 {
-#if defined(CONFIG_DRM_AMD_DC_DCN)
-	/* YELLOW_CARP B0 USB4 DPIA needs dmub notifications for interrupts */
+	/* DCN31 B0 USB4 DPIA needs dmub notifications for interrupts */
 	if (dc->ctx->asic_id.chip_family == FAMILY_YELLOW_CARP &&
 	    dc->ctx->asic_id.hw_internal_rev == YELLOW_CARP_B0 &&
 	    !dc->debug.dpia_debug.bits.disable_dpia)
 		return true;
-#endif
+
 	/* dmub aux needs dmub notifications to be enabled */
 	return dc->debug.enable_dmub_aux_for_legacy_ddc;
 }
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_debug.c b/drivers/gpu/drm/amd/display/dc/core/dc_debug.c
index 643762542e4d..72376075db0c 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_debug.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_debug.c
@@ -345,7 +345,6 @@ void context_clock_trace(
 		struct dc *dc,
 		struct dc_state *context)
 {
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	DC_LOGGER_INIT(dc->ctx->logger);
 	CLOCK_TRACE("Current: dispclk_khz:%d  max_dppclk_khz:%d  dcfclk_khz:%d\n"
 			"dcfclk_deep_sleep_khz:%d  fclk_khz:%d  socclk_khz:%d\n",
@@ -363,7 +362,6 @@ void context_clock_trace(
 			context->bw_ctx.bw.dcn.clk.dcfclk_deep_sleep_khz,
 			context->bw_ctx.bw.dcn.clk.fclk_khz,
 			context->bw_ctx.bw.dcn.clk.socclk_khz);
-#endif
 }
 
 /**
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 07f154fc4e56..9529b924742e 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -804,7 +804,6 @@ static bool wait_for_entering_dp_alt_mode(struct dc_link *link)
 
 static void apply_dpia_mst_dsc_always_on_wa(struct dc_link *link)
 {
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	/* Apply work around for tunneled MST on certain USB4 docks. Always use DSC if dock
 	 * reports DSC support.
 	 */
@@ -815,7 +814,6 @@ static void apply_dpia_mst_dsc_always_on_wa(struct dc_link *link)
 			link->dpcd_caps.dsc_caps.dsc_basic_caps.fields.dsc_support.DSC_SUPPORT &&
 			!link->dc->debug.dpia_debug.bits.disable_mst_dsc_work_around)
 		link->wa_flags.dpia_mst_dsc_always_on = true;
-#endif
 }
 
 static void revert_dpia_mst_dsc_always_on_wa(struct dc_link *link)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index 5e49e346aa06..975d631534b5 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -5127,12 +5127,10 @@ void dp_retrieve_lttpr_cap(struct dc_link *link)
 	else
 		link->lttpr_support = LTTPR_CHECK_EXT_SUPPORT;
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	/* Check DP tunnel LTTPR mode debug option. */
 	if (link->ep_type == DISPLAY_ENDPOINT_USB4_DPIA &&
 	    link->dc->debug.dpia_debug.bits.force_non_lttpr)
 		link->lttpr_support = LTTPR_UNSUPPORTED;
-#endif
 
 	if (link->lttpr_support > LTTPR_UNSUPPORTED) {
 		/* By reading LTTPR capability, RX assumes that we will enable
@@ -5626,9 +5624,7 @@ static bool retrieve_link_cap(struct dc_link *link)
 		 * only if required.
 		 */
 		if (link->ep_type == DISPLAY_ENDPOINT_USB4_DPIA &&
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 				!link->dc->debug.dpia_debug.bits.disable_force_tbt3_work_around &&
-#endif
 				link->dpcd_caps.is_branch_dev &&
 				link->dpcd_caps.branch_dev_id == DP_BRANCH_DEVICE_ID_90CC24 &&
 				link->dpcd_caps.branch_hw_revision == DP_BRANCH_HW_REV_10 &&
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c
index 0e95bc5df4e7..a5765f36d86f 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c
@@ -547,11 +547,9 @@ static uint32_t dpia_get_eq_aux_rd_interval(const struct dc_link *link,
 				dp_translate_training_aux_read_interval(
 					link->dpcd_caps.lttpr_caps.aux_rd_interval[hop - 1]);
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	/* Check debug option for extending aux read interval. */
 	if (link->dc->debug.dpia_debug.bits.extend_aux_rd_interval)
 		wait_time_microsec = DPIA_DEBUG_EXTENDED_AUX_RD_INTERVAL_US;
-#endif
 
 	return wait_time_microsec;
 }
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 147c6a3c6312..f702919a2279 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -56,7 +56,6 @@
 #include "dce110/dce110_resource.h"
 #include "dce112/dce112_resource.h"
 #include "dce120/dce120_resource.h"
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 #include "dcn10/dcn10_resource.h"
 #include "dcn20/dcn20_resource.h"
 #include "dcn21/dcn21_resource.h"
@@ -68,7 +67,6 @@
 #include "dcn31/dcn31_resource.h"
 #include "dcn315/dcn315_resource.h"
 #include "dcn316/dcn316_resource.h"
-#endif
 
 #define DC_LOGGER_INIT(logger)
 
@@ -124,7 +122,6 @@ enum dce_version resource_parse_asic_id(struct hw_asic_id asic_id)
 		else
 			dc_version = DCE_VERSION_12_0;
 		break;
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	case FAMILY_RV:
 		dc_version = DCN_VERSION_1_0;
 		if (ASICREV_IS_RAVEN2(asic_id.hw_internal_rev))
@@ -165,7 +162,6 @@ enum dce_version resource_parse_asic_id(struct hw_asic_id asic_id)
 		if (ASICREV_IS_GC_10_3_7(asic_id.hw_internal_rev))
 			dc_version = DCN_VERSION_3_16;
 		break;
-#endif
 
 	default:
 		dc_version = DCE_VERSION_UNKNOWN;
@@ -397,7 +393,6 @@ bool resource_construct(
 		}
 	}
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	for (i = 0; i < caps->num_mpc_3dlut; i++) {
 		pool->mpc_lut[i] = dc_create_3dlut_func();
 		if (pool->mpc_lut[i] == NULL)
@@ -406,7 +401,7 @@ bool resource_construct(
 		if (pool->mpc_shaper[i] == NULL)
 			DC_ERR("DC: failed to create MPC shaper!\n");
 	}
-#endif
+
 	dc->caps.dynamic_audio = false;
 	if (pool->audio_count < pool->stream_enc_count) {
 		dc->caps.dynamic_audio = true;
@@ -1369,7 +1364,6 @@ static struct pipe_ctx *acquire_free_pipe_for_head(
 	return pool->funcs->acquire_idle_pipe_for_layer(context, pool, head_pipe->stream);
 }
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 static int acquire_first_split_pipe(
 		struct resource_context *res_ctx,
 		const struct resource_pool *pool,
@@ -1404,7 +1398,6 @@ static int acquire_first_split_pipe(
 	}
 	return -1;
 }
-#endif
 
 bool dc_add_plane_to_context(
 		const struct dc *dc,
@@ -1447,13 +1440,12 @@ bool dc_add_plane_to_context(
 	while (head_pipe) {
 		free_pipe = acquire_free_pipe_for_head(context, pool, head_pipe);
 
-	#if defined(CONFIG_DRM_AMD_DC_DCN)
 		if (!free_pipe) {
 			int pipe_idx = acquire_first_split_pipe(&context->res_ctx, pool, stream);
 			if (pipe_idx >= 0)
 				free_pipe = &context->res_ctx.pipe_ctx[pipe_idx];
 		}
-	#endif
+
 		if (!free_pipe) {
 			dc_plane_state_release(plane_state);
 			return false;
@@ -2259,10 +2251,8 @@ enum dc_status resource_map_pool_resources(
 		/* acquire new resources */
 		pipe_idx = acquire_first_free_pipe(&context->res_ctx, pool, stream);
 
-#ifdef CONFIG_DRM_AMD_DC_DCN
 	if (pipe_idx < 0)
 		pipe_idx = acquire_first_split_pipe(&context->res_ctx, pool, stream);
-#endif
 
 	if (pipe_idx < 0 || context->res_ctx.pipe_ctx[pipe_idx].stream_res.tg == NULL)
 		return DC_NO_CONTROLLER_RESOURCE;
@@ -2453,7 +2443,6 @@ enum dc_status dc_validate_global_state(
 		if (!dc->res_pool->funcs->validate_bandwidth(dc, new_ctx, fast_validate))
 			result = DC_FAIL_BANDWIDTH_VALIDATE;
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	/*
 	 * Only update link encoder to stream assignment after bandwidth validation passed.
 	 * TODO: Split out assignment and validation.
@@ -2461,7 +2450,6 @@ enum dc_status dc_validate_global_state(
 	if (result == DC_OK && dc->res_pool->funcs->link_encs_assign && fast_validate == false)
 		dc->res_pool->funcs->link_encs_assign(
 			dc, new_ctx, new_ctx->streams, new_ctx->stream_count);
-#endif
 
 	return result;
 }
@@ -3189,10 +3177,8 @@ unsigned int resource_pixel_format_to_bpp(enum surface_pixel_format format)
 	case SURFACE_PIXEL_FORMAT_GRPH_ARGB2101010:
 	case SURFACE_PIXEL_FORMAT_GRPH_ABGR2101010:
 	case SURFACE_PIXEL_FORMAT_GRPH_ABGR2101010_XR_BIAS:
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	case SURFACE_PIXEL_FORMAT_GRPH_RGBE:
 	case SURFACE_PIXEL_FORMAT_GRPH_RGBE_ALPHA:
-#endif
 		return 32;
 	case SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616:
 	case SURFACE_PIXEL_FORMAT_GRPH_ABGR16161616:
@@ -3345,7 +3331,6 @@ uint8_t resource_transmitter_to_phy_idx(const struct dc *dc, enum transmitter tr
 	/* TODO - get transmitter to phy idx mapping from DMUB */
 	uint8_t phy_idx = transmitter - TRANSMITTER_UNIPHY_A;
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	if (dc->ctx->dce_version == DCN_VERSION_3_1 &&
 			dc->ctx->asic_id.hw_internal_rev == YELLOW_CARP_B0) {
 		switch (transmitter) {
@@ -3369,7 +3354,7 @@ uint8_t resource_transmitter_to_phy_idx(const struct dc *dc, enum transmitter tr
 			break;
 		}
 	}
-#endif
+
 	return phy_idx;
 }
 
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
index c4e871f358ab..acca35d86c10 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
@@ -314,9 +314,7 @@ bool dc_stream_set_cursor_attributes(
 	const struct dc_cursor_attributes *attributes)
 {
 	struct dc  *dc;
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	bool reset_idle_optimizations = false;
-#endif
 
 	if (NULL == stream) {
 		dm_error("DC: dc_stream is NULL!\n");
@@ -346,12 +344,10 @@ bool dc_stream_set_cursor_attributes(
 #endif
 	program_cursor_attributes(dc, stream, attributes);
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	/* re-enable idle optimizations if necessary */
 	if (reset_idle_optimizations)
 		dc_allow_idle_optimizations(dc, true);
 
-#endif
 	return true;
 }
 
@@ -396,9 +392,7 @@ bool dc_stream_set_cursor_position(
 	const struct dc_cursor_position *position)
 {
 	struct dc  *dc;
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	bool reset_idle_optimizations = false;
-#endif
 
 	if (NULL == stream) {
 		dm_error("DC: dc_stream is NULL!\n");
@@ -424,12 +418,10 @@ bool dc_stream_set_cursor_position(
 	stream->cursor_position = *position;
 
 	program_cursor_position(dc, stream, position);
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	/* re-enable idle optimizations if necessary */
 	if (reset_idle_optimizations)
 		dc_allow_idle_optimizations(dc, true);
 
-#endif
 	return true;
 }
 
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index e37d9c19f089..0f86bb809e04 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -222,7 +222,6 @@ struct dc_dcc_setting {
 	unsigned int max_compressed_blk_size;
 	unsigned int max_uncompressed_blk_size;
 	bool independent_64b_blks;
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	//These bitfields to be used starting with DCN
 	struct {
 		uint32_t dcc_256_64_64 : 1;//available in ASICs before DCN (the worst compression case)
@@ -230,7 +229,6 @@ struct dc_dcc_setting {
 		uint32_t dcc_256_128_128 : 1;		//available starting with DCN
 		uint32_t dcc_256_256_unconstrained : 1;  //available in ASICs before DCN (the best compression case)
 	} dcc_controls;
-#endif
 };
 
 struct dc_surface_dcc_cap {
@@ -332,9 +330,7 @@ struct dc_config {
 	bool enable_4to1MPC;
 	bool enable_windowed_mpo_odm;
 	bool allow_edp_hotplug_detection;
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	bool clamp_min_dcfclk;
-#endif
 	uint64_t vblank_alignment_dto_params;
 	uint8_t  vblank_alignment_max_frame_time_diff;
 	bool is_asymmetric_memory;
@@ -395,14 +391,12 @@ enum dcn_pwr_state {
 	DCN_PWR_STATE_LOW_POWER = 3,
 };
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 enum dcn_zstate_support_state {
 	DCN_ZSTATE_SUPPORT_UNKNOWN,
 	DCN_ZSTATE_SUPPORT_ALLOW,
 	DCN_ZSTATE_SUPPORT_ALLOW_Z10_ONLY,
 	DCN_ZSTATE_SUPPORT_DISALLOW,
 };
-#endif
 /*
  * For any clocks that may differ per pipe
  * only the max is stored in this structure
@@ -420,10 +414,8 @@ struct dc_clocks {
 	int phyclk_khz;
 	int dramclk_khz;
 	bool p_state_change_support;
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	enum dcn_zstate_support_state zstate_support;
 	bool dtbclk_en;
-#endif
 	enum dcn_pwr_state pwr_state;
 	/*
 	 * Elements below are not compared for the purposes of
@@ -653,9 +645,7 @@ struct dc_debug_options {
 	bool disable_pplib_clock_request;
 	bool disable_clock_gate;
 	bool disable_mem_low_power;
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	bool pstate_enabled;
-#endif
 	bool disable_dmcu;
 	bool disable_psr;
 	bool force_abm_enable;
@@ -673,20 +663,16 @@ struct dc_debug_options {
 	bool remove_disconnect_edp;
 	unsigned int force_odm_combine; //bit vector based on otg inst
 	unsigned int seamless_boot_odm_combine;
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	unsigned int force_odm_combine_4to1; //bit vector based on otg inst
 	bool disable_z9_mpc;
-#endif
 	unsigned int force_fclk_khz;
 	bool enable_tri_buf;
 	bool dmub_offload_enabled;
 	bool dmcub_emulation;
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	bool disable_idle_power_optimizations;
 	unsigned int mall_size_override;
 	unsigned int mall_additional_timer_percent;
 	bool mall_error_as_fatal;
-#endif
 	bool dmub_command_table; /* for testing only */
 	struct dc_bw_validation_profile bw_val_profile;
 	bool disable_fec;
@@ -695,9 +681,7 @@ struct dc_debug_options {
 	 * watermarks are not affected.
 	 */
 	unsigned int force_min_dcfclk_mhz;
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	int dwb_fi_phase;
-#endif
 	bool disable_timing_sync;
 	bool cm_in_bypass;
 	int force_clock_mode;/*every mode change.*/
@@ -729,11 +713,9 @@ struct dc_debug_options {
 	enum det_size crb_alloc_policy;
 	int crb_alloc_policy_min_disp_count;
 	bool disable_z10;
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	bool enable_z9_disable_interface;
 	bool enable_sw_cntl_psr;
 	union dpia_debug_options dpia_debug;
-#endif
 	bool apply_vendor_specific_lttpr_wa;
 	bool extended_blank_optimization;
 	union aux_wake_wa_options aux_wake_wa;
@@ -767,11 +749,9 @@ struct dc {
 	/* Inputs into BW and WM calculations. */
 	struct bw_calcs_dceip *bw_dceip;
 	struct bw_calcs_vbios *bw_vbios;
-#ifdef CONFIG_DRM_AMD_DC_DCN
 	struct dcn_soc_bounding_box *dcn_soc;
 	struct dcn_ip_params *dcn_ip;
 	struct display_mode_lib dml;
-#endif
 
 	/* HW functions */
 	struct hw_sequencer_funcs hwss;
@@ -780,12 +760,8 @@ struct dc {
 	/* Require to optimize clocks and bandwidth for added/removed planes */
 	bool optimized_required;
 	bool wm_optimized_required;
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	bool idle_optimizations_allowed;
-#endif
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	bool enable_c20_dtm_b0;
-#endif
 
 	/* Require to maintain clocks and bandwidth for UEFI enabled HW */
 
@@ -835,9 +811,7 @@ struct dc_init_data {
 	uint64_t log_mask;
 
 	struct dpcd_vendor_signature vendor_signature;
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	bool force_smu_not_present;
-#endif
 };
 
 struct dc_callback_init {
@@ -1030,9 +1004,7 @@ struct dc_plane_state {
 	struct dc_transfer_func *in_shaper_func;
 	struct dc_transfer_func *blend_tf;
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	struct dc_transfer_func *gamcor_tf;
-#endif
 	enum surface_pixel_format format;
 	enum dc_rotation_angle rotation;
 	enum plane_stereo_format stereo_format;
@@ -1169,13 +1141,11 @@ void dc_resource_state_construct(
 		const struct dc *dc,
 		struct dc_state *dst_ctx);
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 bool dc_acquire_release_mpc_3dlut(
 		struct dc *dc, bool acquire,
 		struct dc_stream_state *stream,
 		struct dc_3dlut **lut,
 		struct dc_transfer_func **shaper);
-#endif
 
 void dc_resource_state_copy_construct(
 		const struct dc_state *src_ctx,
@@ -1306,10 +1276,8 @@ struct hdcp_caps {
 
 #include "dc_link.h"
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 uint32_t dc_get_opp_for_plane(struct dc *dc, struct dc_plane_state *plane);
 
-#endif
 /*******************************************************************************
  * Sink Interfaces - A sink corresponds to a display output device
  ******************************************************************************/
@@ -1433,7 +1401,6 @@ bool dc_is_dmcu_initialized(struct dc *dc);
 
 enum dc_status dc_set_clock(struct dc *dc, enum dc_clock_type clock_type, uint32_t clk_khz, uint32_t stepping);
 void dc_get_clock(struct dc *dc, enum dc_clock_type clock_type, struct dc_clock_config *clock_cfg);
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 
 bool dc_is_plane_eligible_for_idle_optimizations(struct dc *dc, struct dc_plane_state *plane,
 				struct dc_cursor_attributes *cursor_attr);
@@ -1458,13 +1425,9 @@ void dc_enable_dcmode_clk_limit(struct dc *dc, bool enable);
 /* cleanup on driver unload */
 void dc_hardware_release(struct dc *dc);
 
-#endif
-
 bool dc_set_psr_allow_active(struct dc *dc, bool enable);
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 void dc_z10_restore(const struct dc *dc);
 void dc_z10_save_init(struct dc *dc);
-#endif
 
 bool dc_is_dmub_outbox_supported(struct dc *dc);
 bool dc_enable_dmub_notifications(struct dc *dc);
diff --git a/drivers/gpu/drm/amd/display/dc/dm_helpers.h b/drivers/gpu/drm/amd/display/dc/dm_helpers.h
index 31109db02e93..fb6a2d7b6470 100644
--- a/drivers/gpu/drm/amd/display/dc/dm_helpers.h
+++ b/drivers/gpu/drm/amd/display/dc/dm_helpers.h
@@ -160,9 +160,7 @@ void dm_set_dcn_clocks(
 		struct dc_context *ctx,
 		struct dc_clocks *clks);
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 void dm_helpers_enable_periodic_detection(struct dc_context *ctx, bool enable);
-#endif
 
 void dm_set_phyd32clk(struct dc_context *ctx, int freq_khz);
 
diff --git a/drivers/gpu/drm/amd/display/dc/inc/core_types.h b/drivers/gpu/drm/amd/display/dc/inc/core_types.h
index 951c9b60917d..26f3a55c35d7 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/core_types.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/core_types.h
@@ -33,9 +33,7 @@
 #include "dc_bios_types.h"
 #include "mem_input.h"
 #include "hubp.h"
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 #include "mpc.h"
-#endif
 #include "dwb.h"
 #include "mcif_wb.h"
 #include "panel_cntl.h"
@@ -181,7 +179,6 @@ struct resource_funcs {
 	void (*update_bw_bounding_box)(
 			struct dc *dc,
 			struct clk_bw_params *bw_params);
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	bool (*acquire_post_bldn_3dlut)(
 			struct resource_context *res_ctx,
 			const struct resource_pool *pool,
@@ -194,7 +191,7 @@ struct resource_funcs {
 			const struct resource_pool *pool,
 			struct dc_3dlut **lut,
 			struct dc_transfer_func **shaper);
-#endif
+
 	enum dc_status (*add_dsc_to_stream_resource)(
 			struct dc *dc, struct dc_state *state,
 			struct dc_stream_state *stream);
@@ -254,10 +251,9 @@ struct resource_pool {
 	struct hpo_dp_stream_encoder *hpo_dp_stream_enc[MAX_HPO_DP2_ENCODERS];
 	unsigned int hpo_dp_link_enc_count;
 	struct hpo_dp_link_encoder *hpo_dp_link_enc[MAX_HPO_DP2_LINK_ENCODERS];
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	struct dc_3dlut *mpc_lut[MAX_PIPES];
 	struct dc_transfer_func *mpc_shaper[MAX_PIPES];
-#endif
+
 	struct {
 		unsigned int xtalin_clock_inKhz;
 		unsigned int dccg_ref_clock_inKhz;
@@ -286,9 +282,7 @@ struct resource_pool {
 	struct dmcu *dmcu;
 	struct dmub_psr *psr;
 
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	struct abm *multiple_abms[MAX_PIPES];
-#endif
 
 	const struct resource_funcs *funcs;
 	const struct resource_caps *res_cap;
@@ -380,7 +374,6 @@ struct pipe_ctx {
 	struct pipe_ctx *next_odm_pipe;
 	struct pipe_ctx *prev_odm_pipe;
 
-#ifdef CONFIG_DRM_AMD_DC_DCN
 	struct _vcs_dpi_display_dlg_regs_st dlg_regs;
 	struct _vcs_dpi_display_ttu_regs_st ttu_regs;
 	struct _vcs_dpi_display_rq_regs_st rq_regs;
@@ -390,7 +383,7 @@ struct pipe_ctx {
 	struct _vcs_dpi_display_e2e_pipe_params_st dml_input;
 	int det_buffer_size_kb;
 	bool unbounded_req;
-#endif
+
 	union pipe_update_flags update_flags;
 	struct dwbc *dwbc;
 	struct mcif_wb *mcif_wb;
@@ -419,9 +412,7 @@ struct resource_context {
 	bool is_hpo_dp_stream_enc_acquired[MAX_HPO_DP2_ENCODERS];
 	unsigned int hpo_dp_link_enc_to_link_idx[MAX_HPO_DP2_LINK_ENCODERS];
 	int hpo_dp_link_enc_ref_cnts[MAX_HPO_DP2_LINK_ENCODERS];
-#if defined(CONFIG_DRM_AMD_DC_DCN)
 	bool is_mpc_3dlut_acquired[MAX_PIPES];
-#endif
 };
 
 struct dce_bw_output {
@@ -484,9 +475,7 @@ struct dc_state {
 
 	/* Note: these are big structures, do *not* put on stack! */
 	struct dm_pp_display_configuration pp_display_cfg;
-#ifdef CONFIG_DRM_AMD_DC_DCN
 	struct dcn_bw_internal_vars dcn_bw_vars;
-#endif
 
 	struct clk_mgr *clk_mgr;