drm/amd/display: When resync fifo ensure to use correct pipe ctx

We resync the FIFO after each pipe update in apply_ctx_to_hw.
However, this means that some pipes (in hardware) are based on the
new context and some are based on the current_state (since the pipes
are updated on at a time). In this case we must ensure to use the
pipe_ctx that's currently still configured in hardware when turning
off / on OTG's and reconfiguring ODM during the resync.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Jerry Zuo <jerry.zuo@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c

@@ -2443,7 +2443,7 @@ enum dc_status dce110_apply_ctx_to_hw(
 
 #ifdef CONFIG_DRM_AMD_DC_FP
 		if (hws->funcs.resync_fifo_dccg_dio)
-			hws->funcs.resync_fifo_dccg_dio(hws, dc, context);
+			hws->funcs.resync_fifo_dccg_dio(hws, dc, context, i);
 #endif
 	}
 

drivers/gpu/drm/amd/display/dc/hwss/dcn314/dcn314_hwseq.c

@@ -355,14 +355,18 @@ void dcn314_calculate_pix_rate_divider(
 	}
 }
 
-void dcn314_resync_fifo_dccg_dio(struct dce_hwseq *hws, struct dc *dc, struct dc_state *context)
+void dcn314_resync_fifo_dccg_dio(struct dce_hwseq *hws, struct dc *dc, struct dc_state *context, unsigned int current_pipe_idx)
 {
 	unsigned int i;
 	struct pipe_ctx *pipe = NULL;
 	bool otg_disabled[MAX_PIPES] = {false};
 
 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
-		pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+		if (i <= current_pipe_idx) {
+			pipe = &context->res_ctx.pipe_ctx[i];
+		} else {
+			pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+		}
 
 		if (pipe->top_pipe || pipe->prev_odm_pipe)
 			continue;
@@ -377,7 +381,10 @@ void dcn314_resync_fifo_dccg_dio(struct dce_hwseq *hws, struct dc *dc, struct dc
 	hws->ctx->dc->res_pool->dccg->funcs->trigger_dio_fifo_resync(hws->ctx->dc->res_pool->dccg);
 
 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
-		pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+		if (i <= current_pipe_idx)
+			pipe = &context->res_ctx.pipe_ctx[i];
+		else
+			pipe = &dc->current_state->res_ctx.pipe_ctx[i];
 
 		if (otg_disabled[i]) {
 			int opp_inst[MAX_PIPES] = { pipe->stream_res.opp->inst };

drivers/gpu/drm/amd/display/dc/hwss/dcn314/dcn314_hwseq.h

@@ -41,7 +41,7 @@ unsigned int dcn314_calculate_dccg_k1_k2_values(struct pipe_ctx *pipe_ctx, unsig
 
 void dcn314_calculate_pix_rate_divider(struct dc *dc, struct dc_state *context, const struct dc_stream_state *stream);
 
-void dcn314_resync_fifo_dccg_dio(struct dce_hwseq *hws, struct dc *dc, struct dc_state *context);
+void dcn314_resync_fifo_dccg_dio(struct dce_hwseq *hws, struct dc *dc, struct dc_state *context, unsigned int current_pipe_idx);
 
 void dcn314_dpp_root_clock_control(struct dce_hwseq *hws, unsigned int dpp_inst, bool clock_on);
 

drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c

@@ -1201,20 +1201,27 @@ void dcn32_calculate_pix_rate_divider(
 	}
 }
 
-void dcn32_resync_fifo_dccg_dio(struct dce_hwseq *hws, struct dc *dc, struct dc_state *context)
+void dcn32_resync_fifo_dccg_dio(struct dce_hwseq *hws, struct dc *dc, struct dc_state *context, unsigned int current_pipe_idx)
 {
 	unsigned int i;
 	struct pipe_ctx *pipe = NULL;
 	bool otg_disabled[MAX_PIPES] = {false};
+	struct dc_state *dc_state = NULL;
 
 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
-		pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+		if (i <= current_pipe_idx) {
+			pipe = &context->res_ctx.pipe_ctx[i];
+			dc_state = context;
+		} else {
+			pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+			dc_state = dc->current_state;
+		}
 
 		if (!resource_is_pipe_type(pipe, OTG_MASTER))
 			continue;
 
 		if ((pipe->stream->dpms_off || dc_is_virtual_signal(pipe->stream->signal))
-			&& dc_state_get_pipe_subvp_type(dc->current_state, pipe) != SUBVP_PHANTOM) {
+			&& dc_state_get_pipe_subvp_type(dc_state, pipe) != SUBVP_PHANTOM) {
 			pipe->stream_res.tg->funcs->disable_crtc(pipe->stream_res.tg);
 			reset_sync_context_for_pipe(dc, context, i);
 			otg_disabled[i] = true;
@@ -1224,7 +1231,10 @@ void dcn32_resync_fifo_dccg_dio(struct dce_hwseq *hws, struct dc *dc, struct dc_
 	hws->ctx->dc->res_pool->dccg->funcs->trigger_dio_fifo_resync(hws->ctx->dc->res_pool->dccg);
 
 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
-		pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+		if (i <= current_pipe_idx)
+			pipe = &context->res_ctx.pipe_ctx[i];
+		else
+			pipe = &dc->current_state->res_ctx.pipe_ctx[i];
 
 		if (otg_disabled[i]) {
 			int opp_inst[MAX_PIPES] = { pipe->stream_res.opp->inst };
@@ -1572,7 +1582,7 @@ void dcn32_enable_phantom_streams(struct dc *dc, struct dc_state *context)
 
 #ifdef CONFIG_DRM_AMD_DC_FP
 		if (hws->funcs.resync_fifo_dccg_dio)
-			hws->funcs.resync_fifo_dccg_dio(hws, dc, context);
+			hws->funcs.resync_fifo_dccg_dio(hws, dc, context, i);
 #endif
 	}
 }

drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.h

@@ -75,7 +75,7 @@ void dcn32_update_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable);
 
 unsigned int dcn32_calculate_dccg_k1_k2_values(struct pipe_ctx *pipe_ctx, unsigned int *k1_div, unsigned int *k2_div);
 
-void dcn32_resync_fifo_dccg_dio(struct dce_hwseq *hws, struct dc *dc, struct dc_state *context);
+void dcn32_resync_fifo_dccg_dio(struct dce_hwseq *hws, struct dc *dc, struct dc_state *context, unsigned int current_pipe_idx);
 
 void dcn32_subvp_pipe_control_lock(struct dc *dc,
 		struct dc_state *context,

drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer_private.h

@@ -170,7 +170,8 @@ struct hwseq_private_funcs {
 			unsigned int *k1_div,
 			unsigned int *k2_div);
 	void (*resync_fifo_dccg_dio)(struct dce_hwseq *hws, struct dc *dc,
-			struct dc_state *context);
+			struct dc_state *context,
+			unsigned int current_pipe_idx);
 	enum dc_status (*apply_single_controller_ctx_to_hw)(
 			struct pipe_ctx *pipe_ctx,
 			struct dc_state *context,