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

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/display/dc/inc/link_hwss.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/display/dc/inc/link_hwss.h
Extension
.h
Size
3588 bytes
Lines
90
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct link_hwss_ext {
	/* function pointers below may require to check for NULL if caller
	 * considers missing implementation as expected in some cases or none
	 * critical to be investigated immediately
	 * *********************************************************************
	 */
	void (*set_hblank_min_symbol_width)(struct pipe_ctx *pipe_ctx,
			const struct dc_link_settings *link_settings,
			struct fixed31_32 throttled_vcp_size);
	void (*set_throttled_vcp_size)(struct pipe_ctx *pipe_ctx,
			struct fixed31_32 throttled_vcp_size);
	void (*enable_dp_link_output)(struct dc_link *link,
			const struct link_resource *link_res,
			enum signal_type signal,
			enum clock_source_id clock_source,
			const struct dc_link_settings *link_settings);
	void (*set_dp_link_test_pattern)(struct dc_link *link,
			const struct link_resource *link_res,
			struct encoder_set_dp_phy_pattern_param *tp_params);
	void (*set_dp_lane_settings)(struct dc_link *link,
			const struct link_resource *link_res,
			const struct dc_link_settings *link_settings,
			const struct dc_lane_settings lane_settings[LANE_COUNT_DP_MAX]);
	void (*update_stream_allocation_table)(struct dc_link *link,
			const struct link_resource *link_res,
			const struct link_mst_stream_allocation_table *table);
};

struct link_hwss {
	struct link_hwss_ext ext;

	/* function pointers below MUST be assigned to all types of link_hwss
	 * *********************************************************************
	 */
	void (*setup_stream_encoder)(struct pipe_ctx *pipe_ctx);
	void (*reset_stream_encoder)(struct pipe_ctx *pipe_ctx);
	void (*setup_stream_attribute)(struct pipe_ctx *pipe_ctx);
	void (*disable_link_output)(struct dc_link *link,
			const struct link_resource *link_res,
			enum signal_type signal);
	void (*setup_audio_output)(struct pipe_ctx *pipe_ctx,
			struct audio_output *audio_output, uint32_t audio_inst);
	void (*enable_audio_packet)(struct pipe_ctx *pipe_ctx);
	void (*disable_audio_packet)(struct pipe_ctx *pipe_ctx);
};
#endif /* __DC_LINK_HWSS_H__ */

Annotation

Implementation Notes