path: root/common/recipes-kernel/linux/linux-yocto-4.14.71/2758-drm-amd-display-Remove-unnecessary-dc_stream-vtable.patch

From 97e88a08e737c8686feb0e1b6174cc1cc917ae2e Mon Sep 17 00:00:00 2001
From: Harry Wentland <harry.wentland@amd.com>
Date: Wed, 1 Nov 2017 11:43:36 -0400
Subject: [PATCH 2758/4131] drm/amd/display: Remove unnecessary dc_stream
 vtable

There's no need to have this as a vtable. The vtable was initially
used for stream_adjust_vmin_vmax but the condition checked here
(set_drr) is always true, hence we don't need to assign this
dynamically anymore.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c           | 136 +--------------------
 drivers/gpu/drm/amd/display/dc/dc_stream.h         |  18 +++
 .../drm/amd/display/modules/freesync/freesync.c    |  84 +++++--------
 3 files changed, 51 insertions(+), 187 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index bec3e12..4af3488 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -158,7 +158,7 @@ static bool create_links(
 	return false;
 }
 
-static bool stream_adjust_vmin_vmax(struct dc *dc,
+bool dc_stream_adjust_vmin_vmax(struct dc *dc,
 		struct dc_stream_state **streams, int num_streams,
 		int vmin, int vmax)
 {
@@ -183,7 +183,7 @@ static bool stream_adjust_vmin_vmax(struct dc *dc,
 	return ret;
 }
 
-static bool stream_get_crtc_position(struct dc *dc,
+bool dc_stream_get_crtc_position(struct dc *dc,
 		struct dc_stream_state **streams, int num_streams,
 		unsigned int *v_pos, unsigned int *nom_v_pos)
 {
@@ -208,45 +208,7 @@ static bool stream_get_crtc_position(struct dc *dc,
 	return ret;
 }
 
-static bool set_gamut_remap(struct dc *dc, const struct dc_stream_state *stream)
-{
-	int i = 0;
-	bool ret = false;
-	struct pipe_ctx *pipes;
-
-	for (i = 0; i < MAX_PIPES; i++) {
-		if (dc->current_state->res_ctx.pipe_ctx[i].stream == stream) {
-			pipes = &dc->current_state->res_ctx.pipe_ctx[i];
-			dc->hwss.program_gamut_remap(pipes);
-			ret = true;
-		}
-	}
-
-	return ret;
-}
-
-static bool program_csc_matrix(struct dc *dc, struct dc_stream_state *stream)
-{
-	int i = 0;
-	bool ret = false;
-	struct pipe_ctx *pipes;
-
-	for (i = 0; i < MAX_PIPES; i++) {
-		if (dc->current_state->res_ctx.pipe_ctx[i].stream
-				== stream) {
-
-			pipes = &dc->current_state->res_ctx.pipe_ctx[i];
-			dc->hwss.program_csc_matrix(pipes,
-			stream->output_color_space,
-			stream->csc_color_matrix.matrix);
-			ret = true;
-		}
-	}
-
-	return ret;
-}
-
-static void set_static_screen_events(struct dc *dc,
+void dc_stream_set_static_screen_events(struct dc *dc,
 		struct dc_stream_state **streams,
 		int num_streams,
 		const struct dc_static_screen_events *events)
@@ -337,100 +299,8 @@ static void set_test_pattern(
 			cust_pattern_size);
 }
 
-static void set_dither_option(struct dc_stream_state *stream,
-		enum dc_dither_option option)
-{
-	struct bit_depth_reduction_params params;
-	struct dc_link *link = stream->status.link;
-	struct pipe_ctx *pipes = NULL;
-	int i;
-
-	for (i = 0; i < MAX_PIPES; i++) {
-		if (link->dc->current_state->res_ctx.pipe_ctx[i].stream ==
-				stream) {
-			pipes = &link->dc->current_state->res_ctx.pipe_ctx[i];
-			break;
-		}
-	}
-
-	memset(&params, 0, sizeof(params));
-	if (!pipes)
-		return;
-	if (option > DITHER_OPTION_MAX)
-		return;
-
-	stream->dither_option = option;
-
-	resource_build_bit_depth_reduction_params(stream,
-				&params);
-	stream->bit_depth_params = params;
-	pipes->stream_res.opp->funcs->
-		opp_program_bit_depth_reduction(pipes->stream_res.opp, &params);
-}
-
-void set_dpms(
-	struct dc *dc,
-	struct dc_stream_state *stream,
-	bool dpms_off)
-{
-	struct pipe_ctx *pipe_ctx = NULL;
-	int i;
-
-	for (i = 0; i < MAX_PIPES; i++) {
-		if (dc->current_state->res_ctx.pipe_ctx[i].stream == stream) {
-			pipe_ctx = &dc->current_state->res_ctx.pipe_ctx[i];
-			break;
-		}
-	}
-
-	if (!pipe_ctx) {
-		ASSERT(0);
-		return;
-	}
-
-	if (stream->dpms_off != dpms_off) {
-		stream->dpms_off = dpms_off;
-
-		if (dpms_off) {
-			core_link_disable_stream(pipe_ctx,
-					KEEP_ACQUIRED_RESOURCE);
-
-			dc->hwss.pplib_apply_display_requirements(
-					dc, dc->current_state);
-		} else {
-			dc->hwss.pplib_apply_display_requirements(
-					dc, dc->current_state);
-
-			core_link_enable_stream(dc->current_state, pipe_ctx);
-		}
-	}
-}
-
 static void allocate_dc_stream_funcs(struct dc  *dc)
 {
-	if (dc->hwss.set_drr != NULL) {
-		dc->stream_funcs.adjust_vmin_vmax =
-				stream_adjust_vmin_vmax;
-	}
-
-	dc->stream_funcs.set_static_screen_events =
-			set_static_screen_events;
-
-	dc->stream_funcs.get_crtc_position =
-			stream_get_crtc_position;
-
-	dc->stream_funcs.set_gamut_remap =
-			set_gamut_remap;
-
-	dc->stream_funcs.program_csc_matrix =
-			program_csc_matrix;
-
-	dc->stream_funcs.set_dither_option =
-			set_dither_option;
-
-	dc->stream_funcs.set_dpms =
-			set_dpms;
-
 	dc->link_funcs.set_drive_settings =
 			set_drive_settings;
 
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
index bed2a93..9a64cf1 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -268,4 +268,22 @@ void dc_stream_set_static_screen_events(struct dc *dc,
 					int num_streams,
 					const struct dc_static_screen_events *events);
 
+
+bool dc_stream_adjust_vmin_vmax(struct dc *dc,
+				struct dc_stream_state **stream,
+				int num_streams,
+				int vmin,
+				int vmax);
+
+bool dc_stream_get_crtc_position(struct dc *dc,
+				 struct dc_stream_state **stream,
+				 int num_streams,
+				 unsigned int *v_pos,
+				 unsigned int *nom_v_pos);
+
+void dc_stream_set_static_screen_events(struct dc *dc,
+					struct dc_stream_state **stream,
+					int num_streams,
+					const struct dc_static_screen_events *events);
+
 #endif /* DC_STREAM_H_ */
diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
index 4d7db4a..b4723af 100644
--- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
+++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
@@ -132,14 +132,6 @@ struct core_freesync {
 #define MOD_FREESYNC_TO_CORE(mod_freesync)\
 		container_of(mod_freesync, struct core_freesync, public)
 
-static bool check_dc_support(const struct dc *dc)
-{
-	if (dc->stream_funcs.adjust_vmin_vmax == NULL)
-		return false;
-
-	return true;
-}
-
 struct mod_freesync *mod_freesync_create(struct dc *dc)
 {
 	struct core_freesync *core_freesync =
@@ -169,9 +161,6 @@ struct mod_freesync *mod_freesync_create(struct dc *dc)
 
 	core_freesync->dc = dc;
 
-	if (!check_dc_support(dc))
-		goto fail_construct;
-
 	/* Create initial module folder in registry for freesync enable data */
 	flag.save_per_edid = true;
 	flag.save_per_link = false;
@@ -599,10 +588,9 @@ static bool set_freesync_on_streams(struct core_freesync *core_freesync,
 				update_stream_freesync_context(core_freesync,
 						streams[stream_idx]);
 
-				core_freesync->dc->stream_funcs.
-				adjust_vmin_vmax(core_freesync->dc, streams,
-						num_streams, v_total_min,
-						v_total_max);
+				dc_stream_adjust_vmin_vmax(core_freesync->dc, streams,
+							   num_streams, v_total_min,
+							   v_total_max);
 
 				return true;
 
@@ -625,8 +613,7 @@ static bool set_freesync_on_streams(struct core_freesync *core_freesync,
 						core_freesync,
 						streams[stream_idx]);
 
-					core_freesync->dc->stream_funcs.
-					adjust_vmin_vmax(
+					dc_stream_adjust_vmin_vmax(
 						core_freesync->dc, streams,
 						num_streams, v_total_nominal,
 						v_total_nominal);
@@ -645,11 +632,9 @@ static bool set_freesync_on_streams(struct core_freesync *core_freesync,
 					core_freesync,
 					streams[stream_idx]);
 
-				core_freesync->dc->stream_funcs.
-						adjust_vmin_vmax(
-						core_freesync->dc, streams,
-						num_streams, v_total_nominal,
-						v_total_nominal);
+				dc_stream_adjust_vmin_vmax(core_freesync->dc, streams,
+							   num_streams, v_total_nominal,
+							   v_total_nominal);
 
 				/* Reset the cached variables */
 				reset_freesync_state_variables(state);
@@ -665,11 +650,9 @@ static bool set_freesync_on_streams(struct core_freesync *core_freesync,
 			 * not support freesync because a former stream has
 			 * be programmed
 			 */
-			core_freesync->dc->stream_funcs.
-					adjust_vmin_vmax(
-					core_freesync->dc, streams,
-					num_streams, v_total_nominal,
-					v_total_nominal);
+			dc_stream_adjust_vmin_vmax(core_freesync->dc, streams,
+						   num_streams, v_total_nominal,
+						   v_total_nominal);
 			/* Reset the cached variables */
 			reset_freesync_state_variables(state);
 		}
@@ -786,9 +769,8 @@ void mod_freesync_handle_v_update(struct mod_freesync *mod_freesync,
 			vmin = inserted_frame_v_total;
 
 			/* Program V_TOTAL */
-			core_freesync->dc->stream_funcs.adjust_vmin_vmax(
-				core_freesync->dc, streams,
-				num_streams, vmin, vmax);
+			dc_stream_adjust_vmin_vmax(core_freesync->dc, streams,
+						   num_streams, vmin, vmax);
 		}
 
 		if (state->btr.frame_counter > 0)
@@ -822,17 +804,15 @@ void mod_freesync_handle_v_update(struct mod_freesync *mod_freesync,
 		update_stream_freesync_context(core_freesync, streams[0]);
 
 		/* Program static screen ramp values */
-		core_freesync->dc->stream_funcs.adjust_vmin_vmax(
-					core_freesync->dc, streams,
-					num_streams, v_total,
-					v_total);
+		dc_stream_adjust_vmin_vmax(core_freesync->dc, streams,
+					   num_streams, v_total,
+					   v_total);
 
 		triggers.overlay_update = true;
 		triggers.surface_update = true;
 
-		core_freesync->dc->stream_funcs.set_static_screen_events(
-					core_freesync->dc, streams,	num_streams,
-					&triggers);
+		dc_stream_set_static_screen_events(core_freesync->dc, streams,
+						   num_streams, &triggers);
 	}
 }
 
@@ -916,9 +896,8 @@ void mod_freesync_update_state(struct mod_freesync *mod_freesync,
 	triggers.overlay_update = true;
 	triggers.surface_update = true;
 
-	core_freesync->dc->stream_funcs.set_static_screen_events(
-		core_freesync->dc, streams, num_streams,
-		&triggers);
+	dc_stream_set_static_screen_events(core_freesync->dc, streams,
+					   num_streams, &triggers);
 
 	if (freesync_program_required)
 		/* Program freesync according to current state*/
@@ -1084,10 +1063,9 @@ bool mod_freesync_override_min_max(struct mod_freesync *mod_freesync,
 				max_refresh);
 
 		/* Program vtotal min/max */
-		core_freesync->dc->stream_funcs.adjust_vmin_vmax(
-			core_freesync->dc, &streams, 1,
-			state->freesync_range.vmin,
-			state->freesync_range.vmax);
+		dc_stream_adjust_vmin_vmax(core_freesync->dc, &streams, 1,
+					   state->freesync_range.vmin,
+					   state->freesync_range.vmax);
 	}
 
 	if (min_refresh != 0 &&
@@ -1163,9 +1141,9 @@ bool mod_freesync_get_v_position(struct mod_freesync *mod_freesync,
 	core_freesync = MOD_FREESYNC_TO_CORE(mod_freesync);
 	index = map_index_from_stream(core_freesync, stream);
 
-	if (core_freesync->dc->stream_funcs.get_crtc_position(
-			core_freesync->dc, &stream, 1,
-			&position.vertical_count, &position.nominal_vcount)) {
+	if (dc_stream_get_crtc_position(core_freesync->dc, &stream, 1,
+					&position.vertical_count,
+					&position.nominal_vcount)) {
 
 		*nom_v_pos = position.nominal_vcount;
 		*v_pos = position.vertical_count;
@@ -1223,9 +1201,9 @@ void mod_freesync_notify_mode_change(struct mod_freesync *mod_freesync,
 			triggers.overlay_update = true;
 			triggers.surface_update = true;
 
-			core_freesync->dc->stream_funcs.set_static_screen_events(
-				core_freesync->dc, streams, num_streams,
-				&triggers);
+			dc_stream_set_static_screen_events(core_freesync->dc,
+							   streams, num_streams,
+							   &triggers);
 		}
 	}
 
@@ -1424,10 +1402,8 @@ static void apply_fixed_refresh(struct core_freesync *core_freesync,
 
 		vmax = vmin;
 
-		core_freesync->dc->stream_funcs.adjust_vmin_vmax(
-				core_freesync->dc, &stream,
-				1, vmin,
-				vmax);
+		dc_stream_adjust_vmin_vmax(core_freesync->dc, &stream,
+					   1, vmin, vmax);
 	}
 }
 
-- 
2.7.4