drivers/gpu/drm/xe/xe_hw_engine_class_sysfs.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/xe/xe_hw_engine_class_sysfs.h

Extension

.h

Size

1120 bytes

Lines

44

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/kobject.h

Detected Declarations

• struct xe_gt
• struct xe_hw_engine_class_intf
• struct kobj_eclass

Annotated Snippet

struct kobj_eclass {
	/** @base: The actual kobject */
	struct kobject base;
	/** @eclass: A pointer to the hw engine class interface */
	struct xe_hw_engine_class_intf *eclass;
	/** @xe: A pointer to the xe device */
	struct xe_device *xe;
};

static inline struct xe_hw_engine_class_intf *kobj_to_eclass(struct kobject *kobj)
{
	return container_of(kobj, struct kobj_eclass, base)->eclass;
}

static inline struct xe_device *kobj_to_xe(struct kobject *kobj)
{
	return container_of(kobj, struct kobj_eclass, base)->xe;
}

#endif

Annotation

• Immediate include surface: `linux/kobject.h`.
• Detected declarations: `struct xe_gt`, `struct xe_hw_engine_class_intf`, `struct kobj_eclass`.
• 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.