1 files changed, 293 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
new file mode 100644
index 000000000000..01c60f11b2bd
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -0,0 +1,293 @@
+/*
+ * Copyright 2012-14 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_STREAM_H_
+#define DC_STREAM_H_
+
+#include "dc_types.h"
+#include "grph_object_defs.h"
+
+/*******************************************************************************
+ * Stream Interfaces
+ ******************************************************************************/
+
+struct dc_stream_status {
+	int primary_otg_inst;
+	int stream_enc_inst;
+	int plane_count;
+	struct dc_plane_state *plane_states[MAX_SURFACE_NUM];
+
+	/*
+	 * link this stream passes through
+	 */
+	struct dc_link *link;
+};
+
+struct dc_stream_state {
+	struct dc_sink *sink;
+	struct dc_crtc_timing timing;
+
+	struct rect src; /* composition area */
+	struct rect dst; /* stream addressable area */
+
+	struct audio_info audio_info;
+
+	struct freesync_context freesync_ctx;
+
+	struct dc_hdr_static_metadata hdr_static_metadata;
+	struct dc_transfer_func *out_transfer_func;
+	struct colorspace_transform gamut_remap_matrix;
+	struct csc_transform csc_color_matrix;
+
+	enum dc_color_space output_color_space;
+	enum dc_dither_option dither_option;
+
+	enum view_3d_format view_format;
+
+	bool ignore_msa_timing_param;
+	/* TODO: custom INFO packets */
+	/* TODO: ABM info (DMCU) */
+	/* TODO: PSR info */
+	/* TODO: CEA VIC */
+
+	/* from core_stream struct */
+	struct dc_context *ctx;
+
+	/* used by DCP and FMT */
+	struct bit_depth_reduction_params bit_depth_params;
+	struct clamping_and_pixel_encoding_params clamping;
+
+	int phy_pix_clk;
+	enum signal_type signal;
+	bool dpms_off;
+
+	struct dc_stream_status status;
+
+	struct dc_cursor_attributes cursor_attributes;
+	struct dc_cursor_position cursor_position;
+
+	/* from stream struct */
+	struct kref refcount;
+
+	struct crtc_trigger_info triggered_crtc_reset;
+
+	/* Computed state bits */
+	bool mode_changed : 1;
+
+};
+
+struct dc_stream_update {
+	struct rect src;
+	struct rect dst;
+	struct dc_transfer_func *out_transfer_func;
+	struct dc_hdr_static_metadata *hdr_static_metadata;
+};
+
+bool dc_is_stream_unchanged(
+	struct dc_stream_state *old_stream, struct dc_stream_state *stream);
+bool dc_is_stream_scaling_unchanged(
+	struct dc_stream_state *old_stream, struct dc_stream_state *stream);
+
+/*
+ * Set up surface attributes and associate to a stream
+ * The surfaces parameter is an absolute set of all surface active for the stream.
+ * If no surfaces are provided, the stream will be blanked; no memory read.
+ * Any flip related attribute changes must be done through this interface.
+ *
+ * After this call:
+ *   Surfaces attributes are programmed and configured to be composed into stream.
+ *   This does not trigger a flip.  No surface address is programmed.
+ */
+
+bool dc_commit_planes_to_stream(
+		struct dc *dc,
+		struct dc_plane_state **plane_states,
+		uint8_t new_plane_count,
+		struct dc_stream_state *dc_stream,
+		struct dc_state *state);
+
+void dc_commit_updates_for_stream(struct dc *dc,
+		struct dc_surface_update *srf_updates,
+		int surface_count,
+		struct dc_stream_state *stream,
+		struct dc_stream_update *stream_update,
+		struct dc_plane_state **plane_states,
+		struct dc_state *state);
+/*
+ * Log the current stream state.
+ */
+void dc_stream_log(
+	const struct dc_stream_state *stream,
+	struct dal_logger *dc_logger,
+	enum dc_log_type log_type);
+
+uint8_t dc_get_current_stream_count(struct dc *dc);
+struct dc_stream_state *dc_get_stream_at_index(struct dc *dc, uint8_t i);
+
+/*
+ * Return the current frame counter.
+ */
+uint32_t dc_stream_get_vblank_counter(const struct dc_stream_state *stream);
+
+/* TODO: Return parsed values rather than direct register read
+ * This has a dependency on the caller (amdgpu_get_crtc_scanoutpos)
+ * being refactored properly to be dce-specific
+ */
+bool dc_stream_get_scanoutpos(const struct dc_stream_state *stream,
+				  uint32_t *v_blank_start,
+				  uint32_t *v_blank_end,
+				  uint32_t *h_position,
+				  uint32_t *v_position);
+
+enum dc_status dc_add_stream_to_ctx(
+			struct dc *dc,
+		struct dc_state *new_ctx,
+		struct dc_stream_state *stream);
+
+enum dc_status dc_remove_stream_from_ctx(
+		struct dc *dc,
+			struct dc_state *new_ctx,
+			struct dc_stream_state *stream);
+
+
+bool dc_add_plane_to_context(
+		const struct dc *dc,
+		struct dc_stream_state *stream,
+		struct dc_plane_state *plane_state,
+		struct dc_state *context);
+
+bool dc_remove_plane_from_context(
+		const struct dc *dc,
+		struct dc_stream_state *stream,
+		struct dc_plane_state *plane_state,
+		struct dc_state *context);
+
+bool dc_rem_all_planes_for_stream(
+		const struct dc *dc,
+		struct dc_stream_state *stream,
+		struct dc_state *context);
+
+bool dc_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 *context);
+
+enum dc_status dc_validate_stream(struct dc *dc, struct dc_stream_state *stream);
+
+/*
+ * This function takes a stream and checks if it is guaranteed to be supported.
+ * Guaranteed means that MAX_COFUNC similar streams are supported.
+ *
+ * After this call:
+ *   No hardware is programmed for call.  Only validation is done.
+ */
+
+/*
+ * Set up streams and links associated to drive sinks
+ * The streams parameter is an absolute set of all active streams.
+ *
+ * After this call:
+ *   Phy, Encoder, Timing Generator are programmed and enabled.
+ *   New streams are enabled with blank stream; no memory read.
+ */
+/*
+ * Enable stereo when commit_streams is not required,
+ * for example, frame alternate.
+ */
+bool dc_enable_stereo(
+	struct dc *dc,
+	struct dc_state *context,
+	struct dc_stream_state *streams[],
+	uint8_t stream_count);
+
+
+enum surface_update_type dc_check_update_surfaces_for_stream(
+		struct dc *dc,
+		struct dc_surface_update *updates,
+		int surface_count,
+		struct dc_stream_update *stream_update,
+		const struct dc_stream_status *stream_status);
+
+/**
+ * Create a new default stream for the requested sink
+ */
+struct dc_stream_state *dc_create_stream_for_sink(struct dc_sink *dc_sink);
+
+void dc_stream_retain(struct dc_stream_state *dc_stream);
+void dc_stream_release(struct dc_stream_state *dc_stream);
+
+struct dc_stream_status *dc_stream_get_status(
+	struct dc_stream_state *dc_stream);
+
+/*******************************************************************************
+ * Cursor interfaces - To manages the cursor within a stream
+ ******************************************************************************/
+/* TODO: Deprecated once we switch to dc_set_cursor_position */
+bool dc_stream_set_cursor_attributes(
+	struct dc_stream_state *stream,
+	const struct dc_cursor_attributes *attributes);
+
+bool dc_stream_set_cursor_position(
+	struct dc_stream_state *stream,
+	const struct dc_cursor_position *position);
+
+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);
+
+
+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_ */