drm/amd/display: Update GSL state if leaving immediate flip

[Why]
We should leave GSL if we're not doing immediate flip no matter if
we're doing pipe split or not

[How]
Check for updating GSL state whenever we're not doing
immediate flip

v2: Squash in build fix (Alex)
Signed-off-by: NAric Cyr <aric.cyr@amd.com>
Signed-off-by: NAlvin Lee <alvin.lee2@amd.com>
Acked-by: NAurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/core/dc.c

@@ -2380,7 +2380,6 @@ static void commit_planes_for_stream(struct dc *dc,
 		enum surface_update_type update_type,
 		struct dc_state *context)
 {
-	bool mpcc_disconnected = false;
 	int i, j;
 	struct pipe_ctx *top_pipe_to_program = NULL;
 
@@ -2411,15 +2410,6 @@ static void commit_planes_for_stream(struct dc *dc,
 		context_clock_trace(dc, context);
 	}
 
-	if (update_type != UPDATE_TYPE_FAST && dc->hwss.interdependent_update_lock &&
-		dc->hwss.disconnect_pipes && dc->hwss.wait_for_pending_cleared){
-		dc->hwss.interdependent_update_lock(dc, context, true);
-		mpcc_disconnected = dc->hwss.disconnect_pipes(dc, context);
-		dc->hwss.interdependent_update_lock(dc, context, false);
-		if (mpcc_disconnected)
-			dc->hwss.wait_for_pending_cleared(dc, context);
-	}
-
 	for (j = 0; j < dc->res_pool->pipe_count; j++) {
 		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[j];
 
@@ -2458,7 +2448,6 @@ static void commit_planes_for_stream(struct dc *dc,
 		 */
 		dc->hwss.pipe_control_lock(dc, top_pipe_to_program, true);
 
-
 	// Stream updates
 	if (stream_update)
 		commit_planes_do_stream_update(dc, stream, stream_update, update_type, context);

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

@@ -2775,122 +2775,6 @@ static struct pipe_ctx *dcn10_find_top_pipe_for_stream(
 	return NULL;
 }
 
-bool dcn10_disconnect_pipes(
-		struct dc *dc,
-		struct dc_state *context)
-{
-		bool found_pipe = false;
-		int i, j;
-		struct dce_hwseq *hws = dc->hwseq;
-		struct dc_state *old_ctx = dc->current_state;
-		bool mpcc_disconnected = false;
-		struct pipe_ctx *old_pipe;
-		struct pipe_ctx *new_pipe;
-		DC_LOGGER_INIT(dc->ctx->logger);
-
-		/* Set pipe update flags and lock pipes */
-		for (i = 0; i < dc->res_pool->pipe_count; i++) {
-			old_pipe = &dc->current_state->res_ctx.pipe_ctx[i];
-			new_pipe = &context->res_ctx.pipe_ctx[i];
-			new_pipe->update_flags.raw = 0;
-
-			if (!old_pipe->plane_state && !new_pipe->plane_state)
-				continue;
-
-			if (old_pipe->plane_state && !new_pipe->plane_state)
-				new_pipe->update_flags.bits.disable = 1;
-
-			/* Check for scl update */
-			if (memcmp(&old_pipe->plane_res.scl_data, &new_pipe->plane_res.scl_data, sizeof(struct scaler_data)))
-					new_pipe->update_flags.bits.scaler = 1;
-
-			/* Check for vp update */
-			if (memcmp(&old_pipe->plane_res.scl_data.viewport, &new_pipe->plane_res.scl_data.viewport, sizeof(struct rect))
-					|| memcmp(&old_pipe->plane_res.scl_data.viewport_c,
-						&new_pipe->plane_res.scl_data.viewport_c, sizeof(struct rect)))
-				new_pipe->update_flags.bits.viewport = 1;
-
-		}
-
-		if (!IS_DIAG_DC(dc->ctx->dce_environment)) {
-			/* Disconnect mpcc here only if losing pipe split*/
-			for (i = 0; i < dc->res_pool->pipe_count; i++) {
-				if (context->res_ctx.pipe_ctx[i].update_flags.bits.disable &&
-					old_ctx->res_ctx.pipe_ctx[i].top_pipe) {
-
-					/* Find the top pipe in the new ctx for the bottom pipe that we
-					 * want to remove by comparing the streams and planes. If both
-					 * pipes are being disabled then do it in the regular pipe
-					 * programming sequence
-					 */
-					for (j = 0; j < dc->res_pool->pipe_count; j++) {
-						if (old_ctx->res_ctx.pipe_ctx[i].top_pipe->stream == context->res_ctx.pipe_ctx[j].stream &&
-							old_ctx->res_ctx.pipe_ctx[i].top_pipe->plane_state == context->res_ctx.pipe_ctx[j].plane_state &&
-							!context->res_ctx.pipe_ctx[j].top_pipe &&
-							!context->res_ctx.pipe_ctx[j].update_flags.bits.disable) {
-							found_pipe = true;
-							break;
-						}
-					}
-
-					// Disconnect if the top pipe lost it's pipe split
-					if (found_pipe && !context->res_ctx.pipe_ctx[j].bottom_pipe) {
-						hws->funcs.plane_atomic_disconnect(dc, &dc->current_state->res_ctx.pipe_ctx[i]);
-						DC_LOG_DC("Reset mpcc for pipe %d\n", dc->current_state->res_ctx.pipe_ctx[i].pipe_idx);
-						mpcc_disconnected = true;
-					}
-				}
-				found_pipe = false;
-			}
-		}
-
-		if (mpcc_disconnected) {
-			for (i = 0; i < dc->res_pool->pipe_count; i++) {
-				struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
-				struct pipe_ctx *old_pipe = &dc->current_state->res_ctx.pipe_ctx[i];
-				struct dc_plane_state *plane_state = pipe_ctx->plane_state;
-				struct hubp *hubp = pipe_ctx->plane_res.hubp;
-
-				if (!pipe_ctx || !plane_state || !pipe_ctx->stream)
-					continue;
-
-				// Only update scaler and viewport here if we lose a pipe split.
-				// This is to prevent half the screen from being black when we
-				// unlock after disconnecting MPCC.
-				if (!(old_pipe && !pipe_ctx->top_pipe &&
-					!pipe_ctx->bottom_pipe && old_pipe->bottom_pipe))
-					continue;
-
-				if (pipe_ctx->update_flags.raw || pipe_ctx->plane_state->update_flags.raw || pipe_ctx->stream->update_flags.raw) {
-					if (pipe_ctx->update_flags.bits.scaler ||
-						plane_state->update_flags.bits.scaling_change ||
-						plane_state->update_flags.bits.position_change ||
-						plane_state->update_flags.bits.per_pixel_alpha_change ||
-						pipe_ctx->stream->update_flags.bits.scaling) {
-
-						pipe_ctx->plane_res.scl_data.lb_params.alpha_en = pipe_ctx->plane_state->per_pixel_alpha;
-						ASSERT(pipe_ctx->plane_res.scl_data.lb_params.depth == LB_PIXEL_DEPTH_30BPP);
-						/* scaler configuration */
-						pipe_ctx->plane_res.dpp->funcs->dpp_set_scaler(
-						pipe_ctx->plane_res.dpp, &pipe_ctx->plane_res.scl_data);
-					}
-
-					if (pipe_ctx->update_flags.bits.viewport ||
-						(context == dc->current_state && plane_state->update_flags.bits.position_change) ||
-						(context == dc->current_state && plane_state->update_flags.bits.scaling_change) ||
-						(context == dc->current_state && pipe_ctx->stream->update_flags.bits.scaling)) {
-
-						hubp->funcs->mem_program_viewport(
-							hubp,
-							&pipe_ctx->plane_res.scl_data.viewport,
-							&pipe_ctx->plane_res.scl_data.viewport_c);
-					}
-				}
-			}
-		}
-	return mpcc_disconnected;
-}
-
 void dcn10_wait_for_pending_cleared(struct dc *dc,
 		struct dc_state *context)
 {

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_init.c

@@ -34,7 +34,6 @@ static const struct hw_sequencer_funcs dcn10_funcs = {
 	.apply_ctx_to_hw = dce110_apply_ctx_to_hw,
 	.apply_ctx_for_surface = dcn10_apply_ctx_for_surface,
 	.post_unlock_program_front_end = dcn10_post_unlock_program_front_end,
-	.disconnect_pipes = dcn10_disconnect_pipes,
 	.wait_for_pending_cleared = dcn10_wait_for_pending_cleared,
 	.update_plane_addr = dcn10_update_plane_addr,
 	.update_dchub = dcn10_update_dchub,

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c

@@ -1191,7 +1191,7 @@ void dcn20_pipe_control_lock(
 	/* In flip immediate and pipe splitting case, we need to use GSL
 	 * for synchronization. Only do setup on locking and on flip type change.
 	 */
-	if (lock && pipe->bottom_pipe != NULL)
+	if (lock && (pipe->bottom_pipe != NULL || !flip_immediate))
 		if ((flip_immediate && pipe->stream_res.gsl_group == 0) ||
 		    (!flip_immediate && pipe->stream_res.gsl_group > 0))
 			dcn20_setup_gsl_group_as_lock(dc, pipe, flip_immediate);

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c

@@ -34,7 +34,6 @@ static const struct hw_sequencer_funcs dcn20_funcs = {
 	.apply_ctx_to_hw = dce110_apply_ctx_to_hw,
 	.apply_ctx_for_surface = NULL,
 	.program_front_end_for_ctx = dcn20_program_front_end_for_ctx,
-	.disconnect_pipes = dcn10_disconnect_pipes,
 	.wait_for_pending_cleared = dcn10_wait_for_pending_cleared,
 	.post_unlock_program_front_end = dcn20_post_unlock_program_front_end,
 	.update_plane_addr = dcn20_update_plane_addr,

drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c

@@ -35,7 +35,6 @@ static const struct hw_sequencer_funcs dcn21_funcs = {
 	.apply_ctx_to_hw = dce110_apply_ctx_to_hw,
 	.apply_ctx_for_surface = NULL,
 	.program_front_end_for_ctx = dcn20_program_front_end_for_ctx,
-	.disconnect_pipes = dcn10_disconnect_pipes,
 	.wait_for_pending_cleared = dcn10_wait_for_pending_cleared,
 	.post_unlock_program_front_end = dcn20_post_unlock_program_front_end,
 	.update_plane_addr = dcn20_update_plane_addr,

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_init.c

@@ -35,7 +35,6 @@ static const struct hw_sequencer_funcs dcn30_funcs = {
 	.apply_ctx_to_hw = dce110_apply_ctx_to_hw,
 	.apply_ctx_for_surface = NULL,
 	.program_front_end_for_ctx = dcn20_program_front_end_for_ctx,
-	.disconnect_pipes = dcn10_disconnect_pipes,
 	.wait_for_pending_cleared = dcn10_wait_for_pending_cleared,
 	.post_unlock_program_front_end = dcn20_post_unlock_program_front_end,
 	.update_plane_addr = dcn20_update_plane_addr,

drivers/gpu/drm/amd/display/dc/dcn301/dcn301_init.c

@@ -37,7 +37,6 @@ static const struct hw_sequencer_funcs dcn301_funcs = {
 	.apply_ctx_to_hw = dce110_apply_ctx_to_hw,
 	.apply_ctx_for_surface = NULL,
 	.program_front_end_for_ctx = dcn20_program_front_end_for_ctx,
-	.disconnect_pipes = dcn10_disconnect_pipes,
 	.wait_for_pending_cleared = dcn10_wait_for_pending_cleared,
 	.post_unlock_program_front_end = dcn20_post_unlock_program_front_end,
 	.update_plane_addr = dcn20_update_plane_addr,

drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h

@@ -70,8 +70,6 @@ struct hw_sequencer_funcs {
 			int num_planes, struct dc_state *context);
 	void (*program_front_end_for_ctx)(struct dc *dc,
 			struct dc_state *context);
-	bool (*disconnect_pipes)(struct dc *dc,
-			struct dc_state *context);
 	void (*wait_for_pending_cleared)(struct dc *dc,
 			struct dc_state *context);
 	void (*post_unlock_program_front_end)(struct dc *dc,