drivers/gpu/drm/i915/gem/i915_gem_mman.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/gem/i915_gem_mman.h

Extension

.h

Size

939 bytes

Lines

33

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/mm_types.h
• linux/types.h

Detected Declarations

• struct drm_device
• struct drm_file
• struct drm_i915_gem_object
• struct file
• struct i915_mmap_offset
• struct mutex

Annotated Snippet

#ifndef __I915_GEM_MMAN_H__
#define __I915_GEM_MMAN_H__

#include <linux/mm_types.h>
#include <linux/types.h>

struct drm_device;
struct drm_file;
struct drm_i915_gem_object;
struct file;
struct i915_mmap_offset;
struct mutex;

int i915_gem_mmap_gtt_version(void);
int i915_gem_mmap(struct file *filp, struct vm_area_struct *vma);

int i915_gem_dumb_mmap_offset(struct drm_file *file_priv,
			      struct drm_device *dev,
			      u32 handle, u64 *offset);

void __i915_gem_object_release_mmap_gtt(struct drm_i915_gem_object *obj);
void i915_gem_object_release_mmap_gtt(struct drm_i915_gem_object *obj);

void i915_gem_object_runtime_pm_release_mmap_offset(struct drm_i915_gem_object *obj);
void i915_gem_object_release_mmap_offset(struct drm_i915_gem_object *obj);
int i915_gem_fb_mmap(struct drm_i915_gem_object *obj, struct vm_area_struct *vma);
#endif

Annotation

• Immediate include surface: `linux/mm_types.h`, `linux/types.h`.
• Detected declarations: `struct drm_device`, `struct drm_file`, `struct drm_i915_gem_object`, `struct file`, `struct i915_mmap_offset`, `struct mutex`.
• 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.