drivers/gpu/drm/xe/xe_gt_idle_types.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/xe/xe_gt_idle_types.h

Extension

.h

Size

1087 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/spinlock.h
• linux/types.h

Detected Declarations

• struct xe_guc_pc
• struct xe_gt_idle
• enum xe_gt_idle_state

Annotated Snippet

struct xe_gt_idle {
	/** @name: name */
	char name[16];
	/** @powergate_enable: copy of powergate enable bits */
	u32 powergate_enable;
	/** @residency_multiplier: residency multiplier in ns */
	u32 residency_multiplier;
	/** @cur_residency: raw driver copy of idle residency */
	u64 cur_residency;
	/** @prev_residency: previous residency counter */
	u64 prev_residency;
	/** @lock: Lock protecting idle residency counters */
	raw_spinlock_t lock;
	/** @idle_status: get the current idle state */
	enum xe_gt_idle_state (*idle_status)(struct xe_guc_pc *pc);
	/** @idle_residency: get idle residency counter */
	u64 (*idle_residency)(struct xe_guc_pc *pc);
};

#endif /* _XE_GT_IDLE_TYPES_H_ */

Annotation

• Immediate include surface: `linux/spinlock.h`, `linux/types.h`.
• Detected declarations: `struct xe_guc_pc`, `struct xe_gt_idle`, `enum xe_gt_idle_state`.
• 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.