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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

1271 bytes

Lines

36

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_display
• struct intel_encoder

Annotated Snippet

#ifndef __INTEL_HOTPLUG_IRQ_H__
#define __INTEL_HOTPLUG_IRQ_H__

#include <linux/types.h>

struct intel_display;
struct intel_encoder;

u32 i9xx_hpd_irq_ack(struct intel_display *display);

void i9xx_hpd_irq_handler(struct intel_display *display, u32 hotplug_status);
void ibx_hpd_irq_handler(struct intel_display *display, u32 hotplug_trigger);
void ilk_hpd_irq_handler(struct intel_display *display, u32 hotplug_trigger);
void gen11_hpd_irq_handler(struct intel_display *display, u32 iir);
void bxt_hpd_irq_handler(struct intel_display *display, u32 hotplug_trigger);
void xelpdp_pica_irq_handler(struct intel_display *display, u32 iir);
void icp_irq_handler(struct intel_display *display, u32 pch_iir);
void spt_irq_handler(struct intel_display *display, u32 pch_iir);

void i915_hotplug_interrupt_update_locked(struct intel_display *display,
					  u32 mask, u32 bits);
void i915_hotplug_interrupt_update(struct intel_display *display,
				   u32 mask, u32 bits);

void intel_hpd_enable_detection(struct intel_encoder *encoder);
void intel_hpd_irq_setup(struct intel_display *display);

void intel_hotplug_irq_init(struct intel_display *display);

#endif /* __INTEL_HOTPLUG_IRQ_H__ */

Annotation

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