drm/amd/display: Refactor dc_state interface

[WHY?]
Part of the dc_state interface that deals with adding streams and planes should
remain public, while others that deal with internal status' and subvp should be
private to DC.

[HOW?]
Move and rename the public functions to dc_state.h and private functions to
dc_state_priv.h. Also add some additional functions for extracting subvp meta
data from the state.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Jun Lei <jun.lei@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dc_state.h b/drivers/gpu/drm/amd/display/dc/dc_state.h
new file mode 100644
index 000000000000..df1a8b85a652
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dc_state.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2023 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef _DC_STATE_H_
+#define _DC_STATE_H_
+
+#include "dc.h"
+#include "inc/core_status.h"
+
+
+struct dc_state *dc_state_create(struct dc *dc);
+struct dc_state *dc_state_create_copy(struct dc_state *src_state);
+void dc_state_retain(struct dc_state *state);
+void dc_state_release(struct dc_state *state);
+
+enum dc_status dc_state_add_stream(struct dc *dc,
+				    struct dc_state *state,
+				    struct dc_stream_state *stream);
+
+enum dc_status dc_state_remove_stream(
+		struct dc *dc,
+		struct dc_state *state,
+		struct dc_stream_state *stream);
+
+bool dc_state_add_plane(
+		const struct dc *dc,
+		struct dc_stream_state *stream,
+		struct dc_plane_state *plane_state,
+		struct dc_state *state);
+
+bool dc_state_remove_plane(
+		const struct dc *dc,
+		struct dc_stream_state *stream,
+		struct dc_plane_state *plane_state,
+		struct dc_state *state);
+
+bool dc_state_rem_all_planes_for_stream(
+		const struct dc *dc,
+		struct dc_stream_state *stream,
+		struct dc_state *state);
+
+bool dc_state_add_all_planes_for_stream(
+		const struct dc *dc,
+		struct dc_stream_state *stream,
+		struct dc_plane_state * const *plane_states,
+		int plane_count,
+		struct dc_state *state);
+
+struct dc_stream_status *dc_state_get_stream_status(
+	struct dc_state *state,
+	struct dc_stream_state *stream);
+#endif /* _DC_STATE_H_ */