drivers/gpu/drm/amd/display/dc/inc/hw/dmcu.h

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

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/display/dc/inc/hw/dmcu.h
Extension
.h
Size
3125 bytes
Lines
97
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 dmcu_version {
	unsigned int interface_version;
	unsigned int abm_version;
	unsigned int psr_version;
	unsigned int build_version;
};

struct dmcu {
	struct dc_context *ctx;
	const struct dmcu_funcs *funcs;

	enum dmcu_state dmcu_state;
	struct dmcu_version dmcu_version;
	unsigned int cached_wait_loop_number;
	uint32_t psp_version;
	bool auto_load_dmcu;
};

struct dmcu_funcs {
	bool (*dmcu_init)(struct dmcu *dmcu);
	bool (*load_iram)(struct dmcu *dmcu,
			unsigned int start_offset,
			const char *src,
			unsigned int bytes);
	void (*set_psr_enable)(struct dmcu *dmcu, bool enable, bool wait);
	bool (*setup_psr)(struct dmcu *dmcu,
			struct dc_link *link,
			struct psr_context *psr_context);
	void (*get_psr_state)(struct dmcu *dmcu, enum dc_psr_state *dc_psr_state);
	void (*set_psr_wait_loop)(struct dmcu *dmcu,
			unsigned int wait_loop_number);
	void (*get_psr_wait_loop)(struct dmcu *dmcu,
			unsigned int *psr_wait_loop_number);
	bool (*is_dmcu_initialized)(struct dmcu *dmcu);
	bool (*lock_phy)(struct dmcu *dmcu);
	bool (*unlock_phy)(struct dmcu *dmcu);
	bool (*send_edid_cea)(struct dmcu *dmcu,
			int offset,
			int total_length,
			uint8_t *data,
			int length);
	bool (*recv_amd_vsdb)(struct dmcu *dmcu,
			int *version,
			int *min_frame_rate,
			int *max_frame_rate);
	bool (*recv_edid_cea_ack)(struct dmcu *dmcu, int *offset);
#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
	void (*forward_crc_window)(struct dmcu *dmcu,
			struct rect *rect,
			struct otg_phy_mux *mux_mapping);
	void (*stop_crc_win_update)(struct dmcu *dmcu,
			struct otg_phy_mux *mux_mapping);
#endif
};

#endif

Annotation

Implementation Notes