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

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.h
Extension
.h
Size
2536 bytes
Lines
89
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 amdgpu_cs_chunk {
	uint32_t		chunk_id;
	uint32_t		length_dw;
	void			*kdata;
};

struct amdgpu_cs_post_dep {
	struct drm_syncobj *syncobj;
	struct dma_fence_chain *chain;
	u64 point;
};

struct amdgpu_cs_parser {
	struct amdgpu_device	*adev;
	struct drm_file		*filp;
	struct amdgpu_ctx	*ctx;

	/* chunks */
	unsigned		nchunks;
	struct amdgpu_cs_chunk	*chunks;

	/* scheduler job objects */
	unsigned int		gang_size;
	unsigned int		gang_leader_idx;
	struct drm_sched_entity	*entities[AMDGPU_CS_GANG_SIZE];
	struct amdgpu_job	*jobs[AMDGPU_CS_GANG_SIZE];
	struct amdgpu_job	*gang_leader;

	/* buffer objects */
	struct drm_exec			exec;
	struct amdgpu_bo_list		*bo_list;
	struct amdgpu_mn		*mn;
	struct dma_fence		*fence;
	uint64_t			bytes_moved_threshold;
	uint64_t			bytes_moved_vis_threshold;
	uint64_t			bytes_moved;
	uint64_t			bytes_moved_vis;

	/* user fence */
	struct amdgpu_bo		*uf_bo;

	unsigned			num_post_deps;
	struct amdgpu_cs_post_dep	*post_deps;

	struct amdgpu_sync		sync;
};

int amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser,
			   uint64_t addr, struct amdgpu_bo **bo,
			   struct amdgpu_bo_va_mapping **mapping);

#endif

Annotation

Implementation Notes