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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

1072 bytes

Lines

34

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_connector
• struct intel_crtc
• struct intel_crtc_state
• struct intel_display
• enum drrs_type
• enum transcoder

Annotated Snippet

#ifndef __INTEL_DRRS_H__
#define __INTEL_DRRS_H__

#include <linux/types.h>

enum drrs_type;
enum transcoder;
struct intel_atomic_state;
struct intel_connector;
struct intel_crtc;
struct intel_crtc_state;
struct intel_display;

bool intel_cpu_transcoder_has_drrs(struct intel_display *display,
				   enum transcoder cpu_transcoder);
const char *intel_drrs_type_str(enum drrs_type drrs_type);
bool intel_drrs_is_active(struct intel_crtc *crtc);
void intel_drrs_activate(const struct intel_crtc_state *crtc_state);
void intel_drrs_deactivate(const struct intel_crtc_state *crtc_state);
void intel_drrs_invalidate(struct intel_display *display,
			   unsigned int frontbuffer_bits);
void intel_drrs_flush(struct intel_display *display,
		      unsigned int frontbuffer_bits);
void intel_drrs_crtc_init(struct intel_crtc *crtc);
void intel_drrs_crtc_debugfs_add(struct intel_crtc *crtc);
void intel_drrs_connector_debugfs_add(struct intel_connector *connector);

#endif /* __INTEL_DRRS_H__ */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct intel_atomic_state`, `struct intel_connector`, `struct intel_crtc`, `struct intel_crtc_state`, `struct intel_display`, `enum drrs_type`, `enum transcoder`.
• 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.