drivers/gpu/drm/i915/selftests/igt_mmap.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/selftests/igt_mmap.h

Extension

.h

Size

600 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 drm_i915_private
• struct drm_vma_offset_node
• struct file

Annotated Snippet

#ifndef IGT_MMAP_H
#define IGT_MMAP_H

#include <linux/types.h>

struct drm_i915_private;
struct drm_vma_offset_node;
struct file;

unsigned long igt_mmap_offset(struct drm_i915_private *i915,
			      u64 offset,
			      unsigned long size,
			      unsigned long prot,
			      unsigned long flags);

unsigned long igt_mmap_offset_with_file(struct drm_i915_private *i915,
					u64 offset,
					unsigned long size,
					unsigned long prot,
					unsigned long flags,
					struct file *file);

#endif /* IGT_MMAP_H */

Annotation

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