drivers/gpu/drm/i915/gt/intel_breadcrumbs_types.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/i915/gt/intel_breadcrumbs_types.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/i915/gt/intel_breadcrumbs_types.h
Extension
.h
Size
1981 bytes
Lines
57
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.

Dependency Surface

Detected Declarations

Annotated Snippet

struct intel_breadcrumbs {
	struct kref ref;
	atomic_t active;

	spinlock_t signalers_lock; /* protects the list of signalers */
	struct list_head signalers;
	struct llist_head signaled_requests;
	atomic_t signaler_active;

	spinlock_t irq_lock; /* protects the interrupt from hardirq context */
	struct irq_work irq_work; /* for use from inside irq_lock */
	unsigned int irq_enabled;
	intel_wakeref_t irq_armed;

	/* Not all breadcrumbs are attached to physical HW */
	intel_engine_mask_t	engine_mask;
	struct intel_engine_cs *irq_engine;
	bool	(*irq_enable)(struct intel_breadcrumbs *b);
	void	(*irq_disable)(struct intel_breadcrumbs *b);
};

#endif /* __INTEL_BREADCRUMBS_TYPES__ */

Annotation

Implementation Notes