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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

1381 bytes

Lines

40

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h

Detected Declarations

• struct intel_atomic_state
• struct intel_crtc_state
• struct intel_display
• struct intel_encoder
• struct intel_global_state
• struct intel_plane_state
• struct intel_pmdemand_state
• enum pipe

Annotated Snippet

#ifndef __INTEL_PMDEMAND_H__
#define __INTEL_PMDEMAND_H__

#include <linux/types.h>

enum pipe;
struct intel_atomic_state;
struct intel_crtc_state;
struct intel_display;
struct intel_encoder;
struct intel_global_state;
struct intel_plane_state;
struct intel_pmdemand_state;

struct intel_pmdemand_state *to_intel_pmdemand_state(struct intel_global_state *obj_state);

void intel_pmdemand_init_early(struct intel_display *display);
int intel_pmdemand_init(struct intel_display *display);
void intel_pmdemand_init_pmdemand_params(struct intel_display *display,
					 struct intel_pmdemand_state *pmdemand_state);
void intel_pmdemand_update_port_clock(struct intel_display *display,
				      struct intel_pmdemand_state *pmdemand_state,
				      enum pipe pipe, int port_clock);
void intel_pmdemand_update_phys_mask(struct intel_display *display,
				     struct intel_encoder *encoder,
				     struct intel_pmdemand_state *pmdemand_state,
				     bool clear_bit);
void intel_pmdemand_program_dbuf(struct intel_display *display,
				 u8 dbuf_slices);
void intel_pmdemand_pre_plane_update(struct intel_atomic_state *state);
void intel_pmdemand_post_plane_update(struct intel_atomic_state *state);
int intel_pmdemand_atomic_check(struct intel_atomic_state *state);

#endif /* __INTEL_PMDEMAND_H__ */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct intel_atomic_state`, `struct intel_crtc_state`, `struct intel_display`, `struct intel_encoder`, `struct intel_global_state`, `struct intel_plane_state`, `struct intel_pmdemand_state`, `enum pipe`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.