drivers/gpu/drm/i915/i915_deps.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/i915_deps.h

Extension

.h

Size

1218 bytes

Lines

46

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 ttm_operation_ctx
• struct dma_fence
• struct dma_resv
• struct i915_deps

Annotated Snippet

struct i915_deps {
	struct dma_fence *single;
	struct dma_fence **fences;
	unsigned int num_deps;
	unsigned int fences_size;
	gfp_t gfp;
};

void i915_deps_init(struct i915_deps *deps, gfp_t gfp);

void i915_deps_fini(struct i915_deps *deps);

int i915_deps_add_dependency(struct i915_deps *deps,
			     struct dma_fence *fence,
			     const struct ttm_operation_ctx *ctx);

int i915_deps_add_resv(struct i915_deps *deps, struct dma_resv *resv,
		       const struct ttm_operation_ctx *ctx);

int i915_deps_sync(const struct i915_deps *deps,
		   const struct ttm_operation_ctx *ctx);
#endif

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct ttm_operation_ctx`, `struct dma_fence`, `struct dma_resv`, `struct i915_deps`.
• 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.