drivers/gpu/drm/i915/i915_irq.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/i915_irq.h

Extension

.h

Size

1854 bytes

Lines

50

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
• i915_reg_defs.h

Detected Declarations

• struct drm_i915_private
• struct intel_uncore

Annotated Snippet

#ifndef __I915_IRQ_H__
#define __I915_IRQ_H__

#include <linux/types.h>

#include "i915_reg_defs.h"

struct drm_i915_private;
struct intel_uncore;

void intel_irq_init(struct drm_i915_private *dev_priv);
void intel_irq_fini(struct drm_i915_private *dev_priv);
int intel_irq_install(struct drm_i915_private *dev_priv);
void intel_irq_uninstall(struct drm_i915_private *dev_priv);

void gen5_enable_gt_irq(struct drm_i915_private *dev_priv, u32 mask);
void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, u32 mask);
void gen11_reset_rps_interrupts(struct drm_i915_private *dev_priv);
void gen6_reset_rps_interrupts(struct drm_i915_private *dev_priv);
void gen6_enable_rps_interrupts(struct drm_i915_private *dev_priv);
void gen6_disable_rps_interrupts(struct drm_i915_private *dev_priv);
void gen6_rps_reset_ei(struct drm_i915_private *dev_priv);
u32 gen6_sanitize_rps_pm_mask(const struct drm_i915_private *i915, u32 mask);

void intel_irq_suspend(struct drm_i915_private *i915);
void intel_irq_resume(struct drm_i915_private *i915);
bool intel_irqs_enabled(struct drm_i915_private *dev_priv);
void intel_synchronize_irq(struct drm_i915_private *i915);
void intel_synchronize_hardirq(struct drm_i915_private *i915);

void gen2_assert_iir_is_zero(struct intel_uncore *uncore, i915_reg_t reg);

void gen2_irq_reset(struct intel_uncore *uncore, struct i915_irq_regs regs);

void gen2_irq_init(struct intel_uncore *uncore, struct i915_irq_regs regs,
		   u32 imr_val, u32 ier_val);

void gen2_error_reset(struct intel_uncore *uncore, struct i915_error_regs regs);
void gen2_error_init(struct intel_uncore *uncore, struct i915_error_regs regs,
		     u32 emr_val);

extern const struct intel_display_irq_interface i915_display_irq_interface;

#endif /* __I915_IRQ_H__ */

Annotation

• Immediate include surface: `linux/types.h`, `i915_reg_defs.h`.
• Detected declarations: `struct drm_i915_private`, `struct intel_uncore`.
• 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.