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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

963 bytes

Lines

30

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 intel_crtc
• struct intel_display
• enum pipe

Annotated Snippet

#ifndef __INTEL_FIFO_UNDERRUN_H__
#define __INTEL_FIFO_UNDERRUN_H__

#include <linux/types.h>

enum pipe;
struct intel_crtc;
struct intel_display;

void intel_init_fifo_underrun_reporting(struct intel_display *display,
					struct intel_crtc *crtc, bool enable);
bool intel_set_cpu_fifo_underrun_reporting(struct intel_display *display,
					   enum pipe pipe, bool enable);
bool intel_set_pch_fifo_underrun_reporting(struct intel_display *display,
					   enum pipe pch_transcoder,
					   bool enable);
void intel_cpu_fifo_underrun_irq_handler(struct intel_display *display,
					 enum pipe pipe);
void intel_pch_fifo_underrun_irq_handler(struct intel_display *display,
					 enum pipe pch_transcoder);
void intel_check_cpu_fifo_underruns(struct intel_display *display);
void intel_check_pch_fifo_underruns(struct intel_display *display);

#endif /* __INTEL_FIFO_UNDERRUN_H__ */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct intel_crtc`, `struct intel_display`, `enum pipe`.
• 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.