drm/amd/display: implement pipe type definition and adding accessors

[why]
There is a lack of encapsulation of pipe connection representation in pipe context.
This has caused many challenging bugs and coding errors with repeated
logic to identify the same pipe type.

[how]
Formally define pipe types and provide getters to identify a pipe type and
find a pipe based on specific requirements. Update existing logic in non dcn
specific files and dcn32 and future versions to use the new accessors.

Reviewed-by: Jun Lei <jun.lei@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: Wenjing Liu

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

@@ -586,18 +586,15 @@ dc_stream_forward_crc_window(struct dc_stream_state *stream,
 bool dc_stream_configure_crc(struct dc *dc, struct dc_stream_state *stream,
 			     struct crc_params *crc_window, bool enable, bool continuous)
 {
-	int i;
 	struct pipe_ctx *pipe;
 	struct crc_params param;
 	struct timing_generator *tg;
 
-	for (i = 0; i < MAX_PIPES; i++) {
-		pipe = &dc->current_state->res_ctx.pipe_ctx[i];
-		if (pipe->stream == stream && !pipe->top_pipe && !pipe->prev_odm_pipe)
-			break;
-	}
+	pipe = resource_get_otg_master_for_stream(
+			&dc->current_state->res_ctx, stream);
+
 	/* Stream not found */
-	if (i == MAX_PIPES)
+	if (pipe == NULL)
 		return false;
 
 	/* By default, capture the full frame */
@@ -1064,7 +1061,7 @@ static void apply_ctx_interdependent_lock(struct dc *dc,
 
 			// Copied conditions that were previously in dce110_apply_ctx_for_surface
 			if (stream == pipe_ctx->stream) {
-				if (!pipe_ctx->top_pipe &&
+				if (resource_is_pipe_type(pipe_ctx, OPP_HEAD) &&
 					(pipe_ctx->plane_state || old_pipe_ctx->plane_state))
 					dc->hwss.pipe_control_lock(dc, pipe_ctx, lock);
 			}
@@ -3164,7 +3161,7 @@ static void commit_planes_do_stream_update(struct dc *dc,
 	for (j = 0; j < dc->res_pool->pipe_count; j++) {
 		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[j];
 
-		if (!pipe_ctx->top_pipe &&  !pipe_ctx->prev_odm_pipe && pipe_ctx->stream == stream) {
+		if (resource_is_pipe_type(pipe_ctx, OTG_MASTER) && pipe_ctx->stream == stream) {
 
 			if (stream_update->periodic_interrupt && dc->hwss.setup_periodic_interrupt)
 				dc->hwss.setup_periodic_interrupt(dc, pipe_ctx);
@@ -3446,16 +3443,9 @@ static void commit_planes_for_stream_fast(struct dc *dc,
 	struct pipe_ctx *top_pipe_to_program = NULL;
 	dc_z10_restore(dc);
 
-	for (j = 0; j < dc->res_pool->pipe_count; j++) {
-		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[j];
-
-		if (!pipe_ctx->top_pipe &&
-			!pipe_ctx->prev_odm_pipe &&
-			pipe_ctx->stream &&
-			pipe_ctx->stream == stream) {
-			top_pipe_to_program = pipe_ctx;
-		}
-	}
+	top_pipe_to_program = resource_get_otg_master_for_stream(
+			&context->res_ctx,
+			stream);
 
 	if (dc->debug.visual_confirm) {
 		for (i = 0; i < dc->res_pool->pipe_count; i++) {
@@ -3560,16 +3550,9 @@ static void commit_planes_for_stream(struct dc *dc,
 		context_clock_trace(dc, context);
 	}
 
-	for (j = 0; j < dc->res_pool->pipe_count; j++) {
-		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[j];
-
-		if (!pipe_ctx->top_pipe &&
-			!pipe_ctx->prev_odm_pipe &&
-			pipe_ctx->stream &&
-			pipe_ctx->stream == stream) {
-			top_pipe_to_program = pipe_ctx;
-		}
-	}
+	top_pipe_to_program = resource_get_otg_master_for_stream(
+				&context->res_ctx,
+				stream);
 
 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
 		struct pipe_ctx *old_pipe = &dc->current_state->res_ctx.pipe_ctx[i];