drivers/gpu/host1x/job.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/host1x/job.h

Extension

.h

Size

733 bytes

Lines

47

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/dma-direction.h

Detected Declarations

• struct host1x_job_gather
• struct host1x_job_wait
• struct host1x_job_cmd
• struct host1x_job_unpin_data

Annotated Snippet

struct host1x_job_gather {
	unsigned int words;
	dma_addr_t base;
	struct host1x_bo *bo;
	unsigned int offset;
	bool handled;
};

struct host1x_job_wait {
	u32 id;
	u32 threshold;
	u32 next_class;
	bool relative;
};

struct host1x_job_cmd {
	bool is_wait;

	union {
		struct host1x_job_gather gather;
		struct host1x_job_wait wait;
	};
};

struct host1x_job_unpin_data {
	struct host1x_bo_mapping *map;
};

/*
 * Dump contents of job to debug output.
 */
void host1x_job_dump(struct device *dev, struct host1x_job *job);

#endif

Annotation

• Immediate include surface: `linux/dma-direction.h`.
• Detected declarations: `struct host1x_job_gather`, `struct host1x_job_wait`, `struct host1x_job_cmd`, `struct host1x_job_unpin_data`.
• 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.