drivers/gpu/drm/amd/amdgpu/amdgpu_sync.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/amd/amdgpu/amdgpu_sync.h

Extension

.h

Size

2523 bytes

Lines

68

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/hashtable.h

Detected Declarations

• struct dma_fence
• struct dma_resv
• struct amdgpu_device
• struct amdgpu_ring
• struct amdgpu_job
• struct amdgpu_sync
• enum amdgpu_sync_mode

Annotated Snippet

struct amdgpu_sync {
	DECLARE_HASHTABLE(fences, 4);
};

void amdgpu_sync_create(struct amdgpu_sync *sync);
int amdgpu_sync_fence(struct amdgpu_sync *sync, struct dma_fence *f,
		      gfp_t flags);
int amdgpu_sync_resv(struct amdgpu_device *adev, struct amdgpu_sync *sync,
		     struct dma_resv *resv, enum amdgpu_sync_mode mode,
		     void *owner);
int amdgpu_sync_kfd(struct amdgpu_sync *sync, struct dma_resv *resv);
struct dma_fence *amdgpu_sync_peek_fence(struct amdgpu_sync *sync,
				     struct amdgpu_ring *ring);
struct dma_fence *amdgpu_sync_get_fence(struct amdgpu_sync *sync);
int amdgpu_sync_clone(struct amdgpu_sync *source, struct amdgpu_sync *clone);
void amdgpu_sync_move(struct amdgpu_sync *src, struct amdgpu_sync *dst);
int amdgpu_sync_push_to_job(struct amdgpu_sync *sync, struct amdgpu_job *job);
int amdgpu_sync_wait(struct amdgpu_sync *sync, bool intr);
void amdgpu_sync_free(struct amdgpu_sync *sync);
int amdgpu_sync_init(void);
void amdgpu_sync_fini(void);

#endif

Annotation

• Immediate include surface: `linux/hashtable.h`.
• Detected declarations: `struct dma_fence`, `struct dma_resv`, `struct amdgpu_device`, `struct amdgpu_ring`, `struct amdgpu_job`, `struct amdgpu_sync`, `enum amdgpu_sync_mode`.
• 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.