drivers/gpu/drm/i915/display/intel_dmc.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/display/intel_dmc.h

Extension

.h

Size

2249 bytes

Lines

57

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

• linux/types.h

Detected Declarations

• struct drm_printer
• struct intel_crtc
• struct intel_crtc_state
• struct intel_display
• struct intel_dmc_snapshot
• struct intel_dsb
• enum pipe
• enum pipedmc_event_id

Annotated Snippet

#ifndef __INTEL_DMC_H__
#define __INTEL_DMC_H__

#include <linux/types.h>

enum pipe;
enum pipedmc_event_id;
struct drm_printer;
struct intel_crtc;
struct intel_crtc_state;
struct intel_display;
struct intel_dmc_snapshot;
struct intel_dsb;

void intel_dmc_init(struct intel_display *display);
void intel_dmc_load_program(struct intel_display *display);
void intel_dmc_wait_fw_load(struct intel_display *display);
void intel_dmc_disable_program(struct intel_display *display);
void intel_dmc_enable_pipe(const struct intel_crtc_state *crtc_state);
void intel_dmc_disable_pipe(const struct intel_crtc_state *crtc_state);
void intel_dmc_block_pkgc(struct intel_display *display, enum pipe pipe,
			  bool block);
void intel_dmc_configure_dc_balance_event(struct intel_display *display,
					  enum pipe pipe, bool enable);
void intel_dmc_start_pkgc_exit_at_start_of_undelayed_vblank(struct intel_display *display,
							    enum pipe pipe, bool enable);
void intel_dmc_fini(struct intel_display *display);
void intel_dmc_suspend(struct intel_display *display);
void intel_dmc_resume(struct intel_display *display);
bool intel_dmc_has_payload(struct intel_display *display);
void intel_dmc_debugfs_register(struct intel_display *display);

struct intel_dmc_snapshot *intel_dmc_snapshot_capture(struct intel_display *display);
void intel_dmc_snapshot_print(const struct intel_dmc_snapshot *snapshot, struct drm_printer *p);
void intel_dmc_update_dc6_allowed_count(struct intel_display *display, bool start_tracking);

void assert_main_dmc_loaded(struct intel_display *display);

void intel_pipedmc_irq_handler(struct intel_display *display, enum pipe pipe);
void intel_pipedmc_dcb_enable(struct intel_dsb *dsb, struct intel_crtc *crtc);
void intel_pipedmc_dcb_disable(struct intel_dsb *dsb, struct intel_crtc *crtc);

u32 intel_pipedmc_start_mmioaddr(struct intel_crtc *crtc);
void intel_pipedmc_enable_event(struct intel_crtc *crtc,
				enum pipedmc_event_id event);
void intel_pipedmc_disable_event(struct intel_crtc *crtc,
				 enum pipedmc_event_id event);

void intel_pipedmc_irq_handler(struct intel_display *display, enum pipe pipe);

#endif /* __INTEL_DMC_H__ */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct drm_printer`, `struct intel_crtc`, `struct intel_crtc_state`, `struct intel_display`, `struct intel_dmc_snapshot`, `struct intel_dsb`, `enum pipe`, `enum pipedmc_event_id`.
• 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.