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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

2524 bytes

Lines

56

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.

• 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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• dc.h
• dc_types.h
• hw_shared.h

Detected Declarations

• struct pg_cntl
• struct pg_cntl_funcs

Annotated Snippet

struct pg_cntl {
	struct dc_context *ctx;
	const struct pg_cntl_funcs *funcs;
	bool pg_pipe_res_enable[PG_HW_PIPE_RESOURCES_NUM_ELEMENT][MAX_PIPES];
	bool pg_res_enable[PG_HW_RESOURCES_NUM_ELEMENT];
};

struct pg_cntl_funcs {
	void (*dsc_pg_control)(struct pg_cntl *pg_cntl, unsigned int dsc_inst, bool power_on);
	void (*hubp_dpp_pg_control)(struct pg_cntl *pg_cntl, unsigned int hubp_dpp_inst, bool power_on);
	void (*hpo_pg_control)(struct pg_cntl *pg_cntl, bool power_on);
	void (*io_clk_pg_control)(struct pg_cntl *pg_cntl, bool power_on);
	void (*plane_otg_pg_control)(struct pg_cntl *pg_cntl, bool power_on);
	void (*mpcc_pg_control)(struct pg_cntl *pg_cntl, unsigned int mpcc_inst, bool power_on);
	void (*opp_pg_control)(struct pg_cntl *pg_cntl, unsigned int opp_inst, bool power_on);
	void (*optc_pg_control)(struct pg_cntl *pg_cntl, unsigned int optc_inst, bool power_on);
	void (*dwb_pg_control)(struct pg_cntl *pg_cntl, bool power_on);
	void (*mem_pg_control)(struct pg_cntl *pg_cntl, bool power_on);
	void (*dio_pg_control)(struct pg_cntl *pg_cntl, bool power_on);
	void (*init_pg_status)(struct pg_cntl *pg_cntl);
	void (*print_pg_status)(struct pg_cntl *pg_cntl, const char *debug_func, const char *debug_log);
};

#endif //__DC_PG_CNTL_H__

Annotation

• Immediate include surface: `dc.h`, `dc_types.h`, `hw_shared.h`.
• Detected declarations: `struct pg_cntl`, `struct pg_cntl_funcs`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.